Also dump object distribution

Lazy init context errors and interrupts to prevent excess allocation
Reuse filters array during variable parsing
2026-01-02 00:05:42 +03:00 · 2015-05-06 10:45:20 -04:00 · 2015-05-05 23:40:52 -04:00 · 2015-05-05 23:30:05 -04:00 · 2015-05-05 23:21:28 -04:00 · 2015-05-05 23:02:08 -04:00
116 changed files with 1848 additions and 3356 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -6,4 +6,3 @@ pkg
 .rvmrc
 .ruby-version
 Gemfile.lock
-.bundle
--- a/.rubocop.yml
+++ b/.rubocop.yml
@@ -1,125 +0,0 @@
-inherit_from: ./.rubocop_todo.yml
-
-AllCops:
-  Exclude:
-    - 'performance/shopify/*'
-    - 'pkg/**'
-
-Metrics/BlockNesting:
-  Max: 3
-  Exclude:
-    - 'lib/liquid/block_body.rb'
-
-Metrics/ModuleLength:
-  Enabled: false
-
-Metrics/ClassLength:
-  Enabled: false
-
-Lint/AssignmentInCondition:
-  Enabled: false
-
-Lint/AmbiguousOperator:
-  Enabled: false
-
-Lint/AmbiguousRegexpLiteral:
-  Enabled: false
-
-Lint/ParenthesesAsGroupedExpression:
-  Enabled: false
-
-Lint/UnusedBlockArgument:
-  Enabled: false
-
-Lint/EndAlignment:
-  AlignWith: variable
-
-Lint/UnusedMethodArgument:
-  Enabled: false
-
-Style/SingleLineBlockParams:
-  Enabled: false
-
-Style/DoubleNegation:
-  Enabled: false
-
-Style/StringLiteralsInInterpolation:
-  Enabled: false
-
-Style/AndOr:
-  Enabled: false
-
-Style/SignalException:
-  Enabled: false
-
-Style/StringLiterals:
-  Enabled: false
-
-Style/BracesAroundHashParameters:
-  Enabled: false
-
-Style/NumericLiterals:
-  Enabled: false
-
-Style/SpaceInsideBrackets:
-  Enabled: false
-
-Style/SpaceBeforeBlockBraces:
-  Enabled: false
-
-Style/Documentation:
-  Enabled: false
-
-Style/ClassAndModuleChildren:
-  Enabled: false
-
-Style/TrailingComma:
-  Enabled: false
-
-Style/IndentHash:
-  EnforcedStyle: consistent
-
-Style/FormatString:
-  Enabled: false
-
-Style/AlignParameters:
-  EnforcedStyle: with_fixed_indentation
-
-Style/MultilineOperationIndentation:
-  EnforcedStyle: indented
-
-Style/IfUnlessModifier:
-  Enabled: false
-
-Style/RaiseArgs:
-  Enabled: false
-
-Style/DeprecatedHashMethods:
-  Enabled: false
-
-Style/RegexpLiteral:
-  Enabled: false
-
-Style/SymbolLiteral:
-  Enabled: false
-
-Performance/Count:
-  Enabled: false
-
-Style/ConstantName:
-  Enabled: false
-
-Style/CaseIndentation:
-  Enabled: false
-
-Style/ClassVars:
-  Enabled: false
-
-Style/PerlBackrefs:
-  Enabled: false
-
-Style/TrivialAccessors:
-  AllowPredicates: true
-
-Style/WordArray:
-  Enabled: false
--- a/.rubocop_todo.yml
+++ b/.rubocop_todo.yml
@@ -1,72 +0,0 @@
-# This configuration was generated by `rubocop --auto-gen-config`
-# on 2015-06-08 18:16:16 +0000 using RuboCop version 0.32.0.
-# The point is for the user to remove these configuration records
-# one by one as the offenses are removed from the code base.
-# Note that changes in the inspected code, or installation of new
-# versions of RuboCop, may require this file to be generated again.
-
-# Offense count: 5
-Lint/NestedMethodDefinition:
-  Enabled: false
-
-# Offense count: 53
-Metrics/AbcSize:
-  Max: 58
-
-# Offense count: 12
-Metrics/CyclomaticComplexity:
-  Max: 15
-
-# Offense count: 553
-# Configuration parameters: AllowURI, URISchemes.
-Metrics/LineLength:
-  Max: 294
-
-# Offense count: 77
-# Configuration parameters: CountComments.
-Metrics/MethodLength:
-  Max: 46
-
-# Offense count: 6
-Metrics/PerceivedComplexity:
-  Max: 13
-
-# Offense count: 1
-Style/AccessorMethodName:
-  Enabled: false
-
-# Offense count: 1
-# Cop supports --auto-correct.
-Style/ClosingParenthesisIndentation:
-  Enabled: false
-
-# Offense count: 3
-# Configuration parameters: MinBodyLength.
-Style/GuardClause:
-  Enabled: false
-
-# Offense count: 4
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-Style/MethodName:
-  Enabled: false
-
-# Offense count: 1
-Style/MultilineBlockChain:
-  Enabled: false
-
-# Offense count: 2
-# Configuration parameters: EnforcedStyle, MinBodyLength, SupportedStyles.
-Style/Next:
-  Enabled: false
-
-# Offense count: 7
-# Cop supports --auto-correct.
-# Configuration parameters: AllowAsExpressionSeparator.
-Style/Semicolon:
-  Enabled: false
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: MaxLineLength.
-Style/WhileUntilModifier:
-  Enabled: false
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,25 +1,20 @@
 language: ruby

 rvm:
+  - 2.0
  - 2.1
  - 2.2
-  - 2.3.3
  - ruby-head
  - jruby-head
-#  - rbx-2
+  - rbx-2

 sudo: false

-addons:
-  apt:
-    packages:
-    - libgmp3-dev
-
 matrix:
  allow_failures:
    - rvm: jruby-head

-script: "bundle exec rake"
+script: "rake test"

 notifications:
  disable: true
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -4,22 +4,23 @@

 * Bugfixes
 * Performance improvements
-* Features that are likely to be useful to the majority of Liquid users
+* Features which are likely to be useful to the majority of Liquid users

 ## Things we won't merge

-* Code that introduces considerable performance degrations
-* Code that touches performance-critical parts of Liquid and comes without benchmarks
-* Features that are not important for most people (we want to keep the core Liquid code small and tidy)
-* Features that can easily be implemented on top of Liquid (for example as a custom filter or custom filesystem)
-* Code that does not include tests
-* Code that breaks existing tests
+* Code which introduces considerable performance degrations
+* Code which touches performance critical parts of Liquid and comes without benchmarks
+* Features which are not important for most people (we want to keep the core Liquid code small and tidy)
+* Features which can easily be implemented on top of Liquid (for example as a custom filter or custom filesystem)
+* Code which comes without tests
+* Code which breaks existing tests

 ## Workflow

 * Fork the Liquid repository
 * Create a new branch in your fork
-* If it makes sense, add tests for your code and/or run a performance benchmark
-* Make sure all tests pass (`bundle exec rake`)
+* If it makes sense, add tests for your code and run a performance benchmark
+* Make sure all tests pass
 * Create a pull request
+* In the description, ping one of [@boourns](https://github.com/boourns), [@fw42](https://github.com/fw42), [@camilo](https://github.com/camilo), [@dylanahsmith](https://github.com/dylanahsmith), or [@arthurnn](https://github.com/arthurnn) and ask for a code review.

--- a/6
+++ b/6
@@ -2,13 +2,9 @@ source 'https://rubygems.org'

 gemspec
 gem 'stackprof', platforms: :mri_21
+gem 'allocation_tracer', platforms: :mri_21

 group :test do
  gem 'spy', '0.4.1'
  gem 'benchmark-ips'
-  gem 'rubocop', '0.34.2'
-
-  platform :mri do
-    gem 'liquid-c', github: 'Shopify/liquid-c', ref: 'bd53db95de3d44d631e7c5a267c3d934e66107dd'
-  end
 end
--- a/History.md
+++ b/History.md
@@ -1,60 +1,23 @@
 # Liquid Change Log

-## 4.0.0 / 2016-12-14 / branch "4-0-stable"
-
+## 4.0.0 / not yet released / branch "master"
 ### Changed
-* Render an opaque internal error by default for non-Liquid::Error (#835) [Dylan Thacker-Smith]
-* Ruby 2.0 support dropped (#832) [Dylan Thacker-Smith]
-* Add to_number Drop method to allow custom drops to work with number filters (#731)
-* Add strict_variables and strict_filters options to detect undefined references (#691)
-* Improve loop performance (#681) [Florian Weingarten]
-* Rename Drop method `before_method` to `liquid_method_missing` (#661) [Thierry Joyal]
-* Add url_decode filter to invert url_encode (#645) [Larry Archer]
-* Add global_filter to apply a filter to all output (#610) [Loren Hale]
-* Add compact filter (#600) [Carson Reinke]
-* Rename deprecated "has_key?" and "has_interrupt?" methods (#593) [Florian Weingarten]
-* Include template name with line numbers in render errors (574) [Dylan Thacker-Smith]
-* Add sort_natural filter (#554) [Martin Hanzel]
-* Add forloop.parentloop as a reference to the parent loop (#520) [Justin Li]
-* Block parsing moved to BlockBody class (#458) [Dylan Thacker-Smith]
-* Add concat filter to concatenate arrays (#429) [Diogo Beato]
-* Ruby 1.9 support dropped (#491) [Justin Li]
-* Liquid::Template.file_system's read_template_file method is no longer passed the context. (#441) [James Reid-Smith]
-* Remove support for `liquid_methods`
-* Liquid::Template.register_filter raises when the module overrides registered public methods as private or protected (#705) [Gaurav Chande]
+* Add forloop.parentloop as a reference to the parent loop (#520) [Justin Li, pushrax]
+* Block parsing moved to BlockBody class (#458) [Dylan Thacker-Smith, dylanahsmith]
+* Add concat filter to concatenate arrays (#429) [Diogo Beato, dvbeato]
+* Ruby 1.9 support dropped (#491) [Justin Li, pushrax]
+* Liquid::Template.file_system's read_template_file method is no longer passed the context. (#441) [James Reid-Smith, sunblaze]

 ### Fixed
-* Fix map filter when value is a Proc (#672) [Guillaume Malette]
-* Fix truncate filter when value is not a string (#672) [Guillaume Malette]
-* Fix behaviour of escape filter when input is nil (#665) [Tanel Jakobsoo]
-* Fix sort filter behaviour with empty array input (#652) [Marcel Cary]
-* Fix test failure under certain timezones (#631) [Dylan Thacker-Smith]
-* Fix bug in uniq filter (#595) [Florian Weingarten]
-* Fix bug when "blank" and "empty" are used as variable names (#592) [Florian Weingarten]
-* Fix condition parse order in strict mode (#569) [Justin Li]
-* Fix naming of the "context variable" when dynamically including a template (#559) [Justin Li]
-* Gracefully accept empty strings in the date filter (#555) [Loren Hale]
-* Fix capturing into variables with a hyphen in the name (#505) [Florian Weingarten]
-* Fix case sensitivity regression in date standard filter (#499) [Kelley Reynolds]
-* Disallow filters with no variable in strict mode (#475) [Justin Li]
-* Disallow variable names in the strict parser that are not valid in the lax parser (#463) [Justin Li]
-* Fix BlockBody#warnings taking exponential time to compute (#486) [Justin Li]
+* Fix capturing into variables with a hyphen in the name (#505) [Florian Weingarten, fw42]
+* Fix case sensitivity regression in date standard filter (#499) [Kelley Reynolds, kreynolds]
+* Disallow filters with no variable in strict mode (#475) [Justin Li, pushrax]
+* Disallow variable names in the strict parser that are not valid in the lax parser (#463) [Justin Li, pushrax]
+* Fix BlockBody#warnings taking exponential time to compute (#486) [Justin Li, pushrax]

-## 3.0.5 / 2015-07-23 / branch "3-0-stable"
+## 3.0.2 / 2015-04-24 / branch "3-0-stable"

-* Fix test failure under certain timezones [Dylan Thacker-Smith]
-
-## 3.0.4 / 2015-07-17
-
-* Fix chained access to multi-dimensional hashes [Florian Weingarten]
-
-## 3.0.3 / 2015-05-28
-
-* Fix condition parse order in strict mode (#569) [Justin Li]
-
-## 3.0.2 / 2015-04-24
-
-* Expose VariableLookup private members (#551) [Justin Li]
+* Expose VariableLookup private members (#551) [Justin Li, pushrax]
 * Documentation fixes

 ## 3.0.1 / 2015-01-23
@@ -63,52 +26,44 @@

 ## 3.0.0 / 2014-11-12

-* Removed Block#end_tag. Instead, override parse with `super` followed by your code. See #446 [Dylan Thacker-Smith]
+* Removed Block#end_tag. Instead, override parse with `super` followed by your code. See #446 [Dylan Thacker-Smith, dylanahsmith]
 * Fixed condition with wrong data types (#423) [Bogdan Gusiev]
-* Add url_encode to standard filters (#421) [Derrick Reimer]
-* Add uniq to standard filters [Florian Weingarten]
-* Add exception_handler feature (#397) and #254 [Bogdan Gusiev, Florian Weingarten]
-* Optimize variable parsing to avoid repeated regex evaluation during template rendering #383 [Jason Hiltz-Laforge]
-* Optimize checking for block interrupts to reduce object allocation #380 [Jason Hiltz-Laforge]
-* Properly set context rethrow_errors on render! #349 [Thierry Joyal]
-* Fix broken rendering of variables which are equal to false (#345) [Florian Weingarten]
-* Remove ActionView template handler [Dylan Thacker-Smith]
-* Freeze lots of string literals for new Ruby 2.1 optimization (#297) [Florian Weingarten]
-* Allow newlines in tags and variables (#324) [Dylan Thacker-Smith]
-* Tag#parse is called after initialize, which now takes options instead of tokens as the 3rd argument. See #321 [Dylan Thacker-Smith]
-* Raise `Liquid::ArgumentError` instead of `::ArgumentError` when filter has wrong number of arguments #309 [Bogdan Gusiev]
-* Add a to_s default for liquid drops (#306) [Adam Doeler]
-* Add strip, lstrip, and rstrip to standard filters [Florian Weingarten]
-* Make if, for & case tags return complete and consistent nodelists (#250) [Nick Jones]
-* Prevent arbitrary method invocation on condition objects (#274) [Dylan Thacker-Smith]
-* Don't call to_sym when creating conditions for security reasons (#273) [Bouke van der Bijl]
-* Fix resource counting bug with respond_to?(:length) (#263) [Florian Weingarten]
-* Allow specifying custom patterns for template filenames (#284) [Andrei Gladkyi]
-* Allow drops to optimize loading a slice of elements (#282) [Tom Burns]
-* Support for passing variables to snippets in subdirs (#271) [Joost Hietbrink]
-* Add a class cache to avoid runtime extend calls (#249) [James Tucker]
-* Remove some legacy Ruby 1.8 compatibility code (#276) [Florian Weingarten]
-* Add default filter to standard filters (#267) [Derrick Reimer]
-* Add optional strict parsing and warn parsing (#235) [Tristan Hume]
+* Add url_encode to standard filters (#421) [Derrick Reimer, djreimer]
+* Add uniq to standard filters [Florian Weingarten, fw42]
+* Add exception_handler feature (#397) and #254 [Bogdan Gusiev, bogdan and Florian Weingarten, fw42]
+* Optimize variable parsing to avoid repeated regex evaluation during template rendering #383 [Jason Hiltz-Laforge, jasonhl]
+* Optimize checking for block interrupts to reduce object allocation #380 [Jason Hiltz-Laforge, jasonhl] 
+* Properly set context rethrow_errors on render! #349 [Thierry Joyal, tjoyal]
+* Fix broken rendering of variables which are equal to false (#345) [Florian Weingarten, fw42]
+* Remove ActionView template handler [Dylan Thacker-Smith, dylanahsmith]
+* Freeze lots of string literals for new Ruby 2.1 optimization (#297) [Florian Weingarten, fw42]
+* Allow newlines in tags and variables (#324) [Dylan Thacker-Smith, dylanahsmith]
+* Tag#parse is called after initialize, which now takes options instead of tokens as the 3rd argument. See #321 [Dylan Thacker-Smith, dylanahsmith]
+* Raise `Liquid::ArgumentError` instead of `::ArgumentError` when filter has wrong number of arguments #309 [Bogdan Gusiev, bogdan]
+* Add a to_s default for liquid drops (#306) [Adam Doeler, releod]
+* Add strip, lstrip, and rstrip to standard filters [Florian Weingarten, fw42]
+* Make if, for & case tags return complete and consistent nodelists (#250) [Nick Jones, dntj]
+* Prevent arbitrary method invocation on condition objects (#274) [Dylan Thacker-Smith, dylanahsmith]
+* Don't call to_sym when creating conditions for security reasons (#273) [Bouke van der Bijl, bouk]
+* Fix resource counting bug with respond_to?(:length) (#263) [Florian Weingarten, fw42]
+* Allow specifying custom patterns for template filenames (#284) [Andrei Gladkyi, agladkyi]
+* Allow drops to optimize loading a slice of elements (#282) [Tom Burns, boourns]
+* Support for passing variables to snippets in subdirs (#271) [Joost Hietbrink, joost]
+* Add a class cache to avoid runtime extend calls (#249) [James Tucker, raggi]
+* Remove some legacy Ruby 1.8 compatibility code (#276) [Florian Weingarten, fw42]
+* Add default filter to standard filters (#267) [Derrick Reimer, djreimer]
+* Add optional strict parsing and warn parsing (#235) [Tristan Hume, trishume]
 * Add I18n syntax error translation (#241) [Simon Hørup Eskildsen, Sirupsen]
-* Make sort filter work on enumerable drops (#239) [Florian Weingarten]
-* Fix clashing method names in enumerable drops (#238) [Florian Weingarten]
-* Make map filter work on enumerable drops (#233) [Florian Weingarten]
-* Improved whitespace stripping for blank blocks, related to #216 [Florian Weingarten]
+* Make sort filter work on enumerable drops (#239) [Florian Weingarten, fw42]
+* Fix clashing method names in enumerable drops (#238) [Florian Weingarten, fw42]
+* Make map filter work on enumerable drops (#233) [Florian Weingarten, fw42]
+* Improved whitespace stripping for blank blocks, related to #216 [Florian Weingarten, fw42]

-## 2.6.3 / 2015-07-23 / branch "2-6-stable"
-
-* Fix test failure under certain timezones [Dylan Thacker-Smith]
-
-## 2.6.2 / 2015-01-23
-
-* Remove duplicate hash key [Parker Moore]
-
-## 2.6.1 / 2014-01-10
+## 2.6.1 / 2014-01-10 / branch "2-6-stable"

 Security fix, cherry-picked from master (4e14a65):
-* Don't call to_sym when creating conditions for security reasons (#273) [Bouke van der Bijl]
-* Prevent arbitrary method invocation on condition objects (#274) [Dylan Thacker-Smith]
+* Don't call to_sym when creating conditions for security reasons (#273) [Bouke van der Bijl, bouk]
+* Prevent arbitrary method invocation on condition objects (#274) [Dylan Thacker-Smith, dylanahsmith]

 ## 2.6.0 / 2013-11-25

@@ -116,37 +71,37 @@ IMPORTANT: Liquid 2.6 is going to be the last version of Liquid which maintains
 The following releases will only be tested against Ruby 1.9 and Ruby 2.0 and are likely to break on Ruby 1.8.

 * Bugfix for #106: fix example servlet [gnowoel]
-* Bugfix for #97: strip_html filter supports multi-line tags [Jo Liss]
-* Bugfix for #114: strip_html filter supports style tags [James Allardice]
-* Bugfix for #117: 'now' support for date filter in Ruby 1.9 [Notre Dame Webgroup]
-* Bugfix for #166: truncate filter on UTF-8 strings with Ruby 1.8 [Florian Weingarten]
-* Bugfix for #204: 'raw' parsing bug [Florian Weingarten]
-* Bugfix for #150: 'for' parsing bug [Peter Schröder]
-* Bugfix for #126: Strip CRLF in strip_newline [Peter Schröder]
-* Bugfix for #174, "can't convert Fixnum into String" for "replace" [jsw0528]
-* Allow a Liquid::Drop to be passed into Template#render [Daniel Huckstep]
-* Resource limits [Florian Weingarten]
-* Add reverse filter [Jay Strybis]
+* Bugfix for #97: strip_html filter supports multi-line tags [Jo Liss, joliss]
+* Bugfix for #114: strip_html filter supports style tags [James Allardice, jamesallardice]
+* Bugfix for #117: 'now' support for date filter in Ruby 1.9 [Notre Dame Webgroup, ndwebgroup]
+* Bugfix for #166: truncate filter on UTF-8 strings with Ruby 1.8 [Florian Weingarten, fw42]
+* Bugfix for #204: 'raw' parsing bug [Florian Weingarten, fw42]
+* Bugfix for #150: 'for' parsing bug [Peter Schröder, phoet]
+* Bugfix for #126: Strip CRLF in strip_newline [Peter Schröder, phoet]
+* Bugfix for #174, "can't convert Fixnum into String" for "replace" [wǒ_is神仙, jsw0528]
+* Allow a Liquid::Drop to be passed into Template#render [Daniel Huckstep, darkhelmet]
+* Resource limits [Florian Weingarten, fw42]
+* Add reverse filter [Jay Strybis, unreal]
 * Add utf-8 support
-* Use array instead of Hash to keep the registered filters [Tasos Stathopoulos]
-* Cache tokenized partial templates [Tom Burns]
-* Avoid warnings in Ruby 1.9.3 [Marcus Stollsteimer]
-* Better documentation for 'include' tag (closes #163) [Peter Schröder]
-* Use of BigDecimal on filters to have better precision (closes #155) [Arthur Nogueira Neves]
+* Use array instead of Hash to keep the registered filters [Tasos Stathopoulos, astathopoulos]
+* Cache tokenized partial templates [Tom Burns, boourns]
+* Avoid warnings in Ruby 1.9.3 [Marcus Stollsteimer, stomar]
+* Better documentation for 'include' tag (closes #163) [Peter Schröder, phoet]
+* Use of BigDecimal on filters to have better precision (closes #155) [Arthur Nogueira Neves, arthurnn]

 ## 2.5.5 / 2014-01-10 / branch "2-5-stable"

 Security fix, cherry-picked from master (4e14a65):
-* Don't call to_sym when creating conditions for security reasons (#273) [Bouke van der Bijl]
-* Prevent arbitrary method invocation on condition objects (#274) [Dylan Thacker-Smith]
+* Don't call to_sym when creating conditions for security reasons (#273) [Bouke van der Bijl, bouk]
+* Prevent arbitrary method invocation on condition objects (#274) [Dylan Thacker-Smith, dylanahsmith]

 ## 2.5.4 / 2013-11-11

-* Fix "can't convert Fixnum into String" for "replace" (#173), [jsw0528]
+* Fix "can't convert Fixnum into String" for "replace" (#173), [wǒ_is神仙, jsw0528]

 ## 2.5.3 / 2013-10-09

-* #232, #234, #237: Fix map filter bugs [Florian Weingarten]
+* #232, #234, #237: Fix map filter bugs [Florian Weingarten, fw42]

 ## 2.5.2 / 2013-09-03 / deleted

@@ -154,7 +109,7 @@ Yanked from rubygems, as it contained too many changes that broke compatibility.

 ## 2.5.1 / 2013-07-24

-* #230: Fix security issue with map filter, Use invoke_drop in map filter [Florian Weingarten]
+* #230: Fix security issue with map filter, Use invoke_drop in map filter [Florian Weingarten, fw42]

 ## 2.5.0 / 2013-03-06

--- a/0
+++ b/0
--- a/README.md
+++ b/README.md
@@ -73,34 +73,3 @@ This is useful for doing things like enabling strict mode only in the theme edit

 It is recommended that you enable `:strict` or `:warn` mode on new apps to stop invalid templates from being created.
 It is also recommended that you use it in the template editors of existing apps to give editors better error messages.
-
-### Undefined variables and filters
-
-By default, the renderer doesn't raise or in any other way notify you if some variables or filters are missing, i.e. not passed to the `render` method.
-You can improve this situation by passing `strict_variables: true` and/or `strict_filters: true` options to the `render` method.
-When one of these options is set to true, all errors about undefined variables and undefined filters will be stored in `errors` array of a `Liquid::Template` instance.
-Here are some examples:
-
-```ruby
-template = Liquid::Template.parse("{{x}} {{y}} {{z.a}} {{z.b}}")
-template.render({ 'x' => 1, 'z' => { 'a' => 2 } }, { strict_variables: true })
-#=> '1  2 ' # when a variable is undefined, it's rendered as nil
-template.errors
-#=> [#<Liquid::UndefinedVariable: Liquid error: undefined variable y>, #<Liquid::UndefinedVariable: Liquid error: undefined variable b>]
-```
-
-```ruby
-template = Liquid::Template.parse("{{x | filter1 | upcase}}")
-template.render({ 'x' => 'foo' }, { strict_filters: true })
-#=> '' # when at least one filter in the filter chain is undefined, a whole expression is rendered as nil
-template.errors
-#=> [#<Liquid::UndefinedFilter: Liquid error: undefined filter filter1>]
-```
-
-If you want to raise on a first exception instead of pushing all of them in `errors`, you can use `render!` method:
-
-```ruby
-template = Liquid::Template.parse("{{x}} {{y}}")
-template.render!({ 'x' => 1}, { strict_variables: true })
-#=> Liquid::UndefinedVariable: Liquid error: undefined variable y
-```
--- a/48
+++ b/48
@@ -3,7 +3,7 @@ require 'rake/testtask'
 $LOAD_PATH.unshift File.expand_path("../lib", __FILE__)
 require "liquid/version"

-task default: [:rubocop, :test]
+task :default => 'test'

 desc 'run test suite with default parser'
 Rake::TestTask.new(:base_test) do |t|
@@ -18,43 +18,25 @@ task :warn_test do
  Rake::Task['base_test'].invoke
 end

-task :rubocop do
-  require 'rubocop/rake_task'
-  RuboCop::RakeTask.new
-end
-
 desc 'runs test suite with both strict and lax parsers'
 task :test do
  ENV['LIQUID_PARSER_MODE'] = 'lax'
  Rake::Task['base_test'].invoke
-
  ENV['LIQUID_PARSER_MODE'] = 'strict'
  Rake::Task['base_test'].reenable
  Rake::Task['base_test'].invoke
-
-  if RUBY_ENGINE == 'ruby'
-    ENV['LIQUID-C'] = '1'
-
-    ENV['LIQUID_PARSER_MODE'] = 'lax'
-    Rake::Task['base_test'].reenable
-    Rake::Task['base_test'].invoke
-
-    ENV['LIQUID_PARSER_MODE'] = 'strict'
-    Rake::Task['base_test'].reenable
-    Rake::Task['base_test'].invoke
-  end
 end

-task gem: :build
+task :gem => :build
 task :build do
  system "gem build liquid.gemspec"
 end

-task install: :build do
+task :install => :build do
  system "gem install liquid-#{Liquid::VERSION}.gem"
 end

-task release: :build do
+task :release => :build do
  system "git tag -a v#{Liquid::VERSION} -m 'Tagging #{Liquid::VERSION}'"
  system "git push --tags"
  system "gem push liquid-#{Liquid::VERSION}.gem"
@@ -62,6 +44,7 @@ task release: :build do
 end

 namespace :benchmark do
+
  desc "Run the liquid benchmark with lax parsing"
  task :run do
    ruby "./performance/benchmark.rb lax"
@@ -73,7 +56,9 @@ namespace :benchmark do
  end
 end

+
 namespace :profile do
+
  desc "Run the liquid profile/performance coverage"
  task :run do
    ruby "./performance/profile.rb"
@@ -83,13 +68,24 @@ namespace :profile do
  task :strict do
    ruby "./performance/profile.rb strict"
  end
+
+end
+
+namespace :memory do
+
+  desc "Run the liquid memory tracer"
+  task :run do
+    ruby "./performance/memory.rb"
+  end
+
+  desc "Run the liquid memory tracer with strict parsing"
+  task :strict do
+    ruby "./performance/memory.rb strict"
+  end
+
 end

 desc "Run example"
 task :example do
  ruby "-w -d -Ilib example/server/server.rb"
 end
-
-task :console do
-  exec 'irb -I lib -r liquid'
-end
--- a/circle.yml
+++ b/circle.yml
@@ -1,3 +0,0 @@
-machine:
-  ruby:
-    version: ruby-2.1
--- a/example/server/example_servlet.rb
+++ b/example/server/example_servlet.rb
@@ -4,7 +4,7 @@ module ProductsFilter
  end

  def prettyprint(text)
-    text.gsub(/\*(.*)\*/, '<b>\1</b>')
+    text.gsub( /\*(.*)\*/, '<b>\1</b>' )
  end

  def count(array)
@@ -17,28 +17,30 @@ module ProductsFilter
 end

 class Servlet < LiquidServlet
+
  def index
    { 'date' => Time.now }
  end

  def products
-    { 'products' => products_list, 'more_products' => more_products_list, 'description' => description, 'section' => 'Snowboards', 'cool_products' => true }
+    { 'products' => products_list, 'more_products' => more_products_list, 'description' => description, 'section' => 'Snowboards', 'cool_products' => true}
  end

  private

  def products_list
-    [{ 'name' => 'Arbor Draft', 'price' => 39900, 'description' => 'the *arbor draft* is a excellent product' },
-     { 'name' => 'Arbor Element', 'price' => 40000, 'description' => 'the *arbor element* rocks for freestyling' },
-     { 'name' => 'Arbor Diamond', 'price' => 59900, 'description' => 'the *arbor diamond* is a made up product because im obsessed with arbor and have no creativity' }]
+    [{'name' => 'Arbor Draft', 'price' => 39900, 'description' => 'the *arbor draft* is a excellent product' },
+    {'name' => 'Arbor Element', 'price' => 40000, 'description' => 'the *arbor element* rocks for freestyling'},
+    {'name' => 'Arbor Diamond', 'price' => 59900, 'description' => 'the *arbor diamond* is a made up product because im obsessed with arbor and have no creativity'}]
  end

  def more_products_list
-    [{ 'name' => 'Arbor Catalyst', 'price' => 39900, 'description' => 'the *arbor catalyst* is an advanced drop-through for freestyle and flatground performance and versatility' },
-     { 'name' => 'Arbor Fish', 'price' => 40000, 'description' => 'the *arbor fish* is a compact pin that features an extended wheelbase and time-honored teardrop shape' }]
+    [{'name' => 'Arbor Catalyst', 'price' => 39900, 'description' => 'the *arbor catalyst* is an advanced drop-through for freestyle and flatground performance and versatility' },
+    {'name' => 'Arbor Fish', 'price' => 40000, 'description' => 'the *arbor fish* is a compact pin that features an extended wheelbase and time-honored teardrop shape'}]
  end

  def description
    "List of Products ~ This is a list of products with price and description."
  end
+
 end
--- a/example/server/liquid_servlet.rb
+++ b/example/server/liquid_servlet.rb
@@ -1,4 +1,5 @@
 class LiquidServlet < WEBrick::HTTPServlet::AbstractServlet
+
  def do_GET(req, res)
    handle(:get, req, res)
  end
@@ -19,10 +20,10 @@ class LiquidServlet < WEBrick::HTTPServlet::AbstractServlet

    @response['Content-Type'] = "text/html"
    @response.status = 200
-    @response.body = Liquid::Template.parse(read_template).render(@assigns, filters: [ProductsFilter])
+    @response.body = Liquid::Template.parse(read_template).render(@assigns, :filters => [ProductsFilter])
  end

  def read_template(filename = @action)
-    File.read("#{__dir__}/templates/#{filename}.liquid")
+    File.read( File.dirname(__FILE__) + "/templates/#{filename}.liquid" )
  end
 end
--- a/example/server/server.rb
+++ b/example/server/server.rb
@@ -1,12 +1,14 @@
 require 'webrick'
 require 'rexml/document'

-require_relative '../../lib/liquid'
-require_relative 'liquid_servlet'
-require_relative 'example_servlet'
+DIR = File.expand_path(File.dirname(__FILE__))
+
+require DIR + '/../../lib/liquid'
+require DIR + '/liquid_servlet'
+require DIR + '/example_servlet'

 # Setup webrick
-server = WEBrick::HTTPServer.new(Port: ARGV[1] || 3000)
+server = WEBrick::HTTPServer.new( :Port => ARGV[1] || 3000 )
 server.mount('/', Servlet)
 trap("INT"){ server.shutdown }
 server.start
--- a/lib/liquid.rb
+++ b/lib/liquid.rb
@@ -24,7 +24,6 @@ module Liquid
  ArgumentSeparator           = ','.freeze
  FilterArgumentSeparator     = ':'.freeze
  VariableAttributeSeparator  = '.'.freeze
-  WhitespaceControl           = '-'.freeze
  TagStart                    = /\{\%/
  TagEnd                      = /\%\}/
  VariableSignature           = /\(?[\w\-\.\[\]]\)?/
@@ -35,7 +34,7 @@ module Liquid
  QuotedString                = /"[^"]*"|'[^']*'/
  QuotedFragment              = /#{QuotedString}|(?:[^\s,\|'"]|#{QuotedString})+/o
  TagAttributes               = /(\w+)\s*\:\s*(#{QuotedFragment})/o
-  AnyStartingTag              = /#{TagStart}|#{VariableStart}/o
+  AnyStartingTag              = /\{\{|\{\%/
  PartialTemplateParser       = /#{TagStart}.*?#{TagEnd}|#{VariableStart}.*?#{VariableIncompleteEnd}/om
  TemplateParser              = /(#{PartialTemplateParser}|#{AnyStartingTag})/om
  VariableParser              = /\[[^\]]+\]|#{VariableSegment}+\??/o
@@ -49,8 +48,6 @@ require 'liquid/lexer'
 require 'liquid/parser'
 require 'liquid/i18n'
 require 'liquid/drop'
-require 'liquid/tablerowloop_drop'
-require 'liquid/forloop_drop'
 require 'liquid/extensions'
 require 'liquid/errors'
 require 'liquid/interrupts'
@@ -70,10 +67,10 @@ require 'liquid/resource_limits'
 require 'liquid/template'
 require 'liquid/standardfilters'
 require 'liquid/condition'
+require 'liquid/module_ex'
 require 'liquid/utils'
-require 'liquid/tokenizer'
-require 'liquid/parse_context'
+require 'liquid/token'

 # Load all the tags of the standard library
 #
-Dir["#{__dir__}/liquid/tags/*.rb"].each { |f| require f }
+Dir[File.dirname(__FILE__) + '/liquid/tags/*.rb'].each { |f| require f }
--- a/lib/liquid/block.rb
+++ b/lib/liquid/block.rb
@@ -7,7 +7,7 @@ module Liquid

    def parse(tokens)
      @body = BlockBody.new
-      while parse_body(@body, tokens)
+      while more = parse_body(@body, tokens)
      end
    end

@@ -23,17 +23,29 @@ module Liquid
      @body.nodelist
    end

-    def unknown_tag(tag, _params, _tokens)
+    # warnings of this block and all sub-tags
+    def warnings
+      all_warnings = []
+      all_warnings.concat(@warnings) if @warnings
+
+      (nodelist || []).each do |node|
+        all_warnings.concat(node.warnings || []) if node.respond_to?(:warnings)
+      end
+
+      all_warnings
+    end
+
+    def unknown_tag(tag, params, tokens)
      case tag
      when 'else'.freeze
-        raise SyntaxError.new(parse_context.locale.t("errors.syntax.unexpected_else".freeze,
-          block_name: block_name))
+        raise SyntaxError.new(options[:locale].t("errors.syntax.unexpected_else".freeze,
+                                                 :block_name => block_name))
      when 'end'.freeze
-        raise SyntaxError.new(parse_context.locale.t("errors.syntax.invalid_delimiter".freeze,
-          block_name: block_name,
-          block_delimiter: block_delimiter))
+        raise SyntaxError.new(options[:locale].t("errors.syntax.invalid_delimiter".freeze,
+                                                 :block_name => block_name,
+                                                 :block_delimiter => block_delimiter))
      else
-        raise SyntaxError.new(parse_context.locale.t("errors.syntax.unknown_tag".freeze, tag: tag))
+        raise SyntaxError.new(options[:locale].t("errors.syntax.unknown_tag".freeze, :tag => tag))
      end
    end

@@ -48,12 +60,12 @@ module Liquid
    protected

    def parse_body(body, tokens)
-      body.parse(tokens, parse_context) do |end_tag_name, end_tag_params|
+      body.parse(tokens, options) do |end_tag_name, end_tag_params|
        @blank &&= body.blank?

        return false if end_tag_name == block_delimiter
        unless end_tag_name
-          raise SyntaxError.new(parse_context.locale.t("errors.syntax.tag_never_closed".freeze, block_name: block_name))
+          raise SyntaxError.new(@options[:locale].t("errors.syntax.tag_never_closed".freeze, :block_name => block_name))
        end

        # this tag is not registered with the system
--- a/lib/liquid/block_body.rb
+++ b/lib/liquid/block_body.rb
@@ -1,7 +1,7 @@
 module Liquid
  class BlockBody
-    FullToken = /\A#{TagStart}#{WhitespaceControl}?\s*(\w+)\s*(.*?)#{WhitespaceControl}?#{TagEnd}\z/om
-    ContentOfVariable = /\A#{VariableStart}#{WhitespaceControl}?(.*?)#{WhitespaceControl}?#{VariableEnd}\z/om
+    FullToken = /\A#{TagStart}\s*(\w+)\s*(.*)?#{TagEnd}\z/om
+    ContentOfVariable = /\A#{VariableStart}(.*)#{VariableEnd}\z/om
    TAGSTART = "{%".freeze
    VARSTART = "{{".freeze

@@ -12,128 +12,121 @@ module Liquid
      @blank = true
    end

-    def parse(tokenizer, parse_context)
-      parse_context.line_number = tokenizer.line_number
-      while token = tokenizer.shift
-        unless token.empty?
-          case
-          when token.start_with?(TAGSTART)
-            whitespace_handler(token, parse_context)
-            if token =~ FullToken
-              tag_name = $1
-              markup = $2
-              # fetch the tag from registered blocks
-              if tag = registered_tags[tag_name]
-                new_tag = tag.parse(tag_name, markup, tokenizer, parse_context)
-                @blank &&= new_tag.blank?
-                @nodelist << new_tag
+    def parse(tokens, options)
+      while token = tokens.shift
+        begin
+          unless token.empty?
+            case
+            when token.start_with?(TAGSTART)
+              if token =~ FullToken
+                tag_name = $1
+                markup = $2
+                # fetch the tag from registered blocks
+                if tag = Template.tags[tag_name]
+                  markup = token.child(markup) if token.is_a?(Token)
+                  new_tag = tag.parse(tag_name, markup, tokens, options)
+                  new_tag.line_number = token.line_number if token.is_a?(Token)
+                  @blank &&= new_tag.blank?
+                  @nodelist << new_tag
+                else
+                  # end parsing if we reach an unknown tag and let the caller decide
+                  # determine how to proceed
+                  return yield tag_name, markup
+                end
              else
-                # end parsing if we reach an unknown tag and let the caller decide
-                # determine how to proceed
-                return yield tag_name, markup
+                raise_missing_tag_terminator(token, options)
              end
+            when token.start_with?(VARSTART)
+              new_var = create_variable(token, options)
+              new_var.line_number = token.line_number if token.is_a?(Token)
+              @nodelist << new_var
+              @blank = false
            else
-              raise_missing_tag_terminator(token, parse_context)
+              @nodelist << token
+              @blank &&= !!(token =~ /\A\s*\z/)
            end
-          when token.start_with?(VARSTART)
-            whitespace_handler(token, parse_context)
-            @nodelist << create_variable(token, parse_context)
-            @blank = false
-          else
-            if parse_context.trim_whitespace
-              token.lstrip!
-            end
-            parse_context.trim_whitespace = false
-            @nodelist << token
-            @blank &&= !!(token =~ /\A\s*\z/)
          end
+        rescue SyntaxError => e
+          e.set_line_number_from_token(token)
+          raise
        end
-        parse_context.line_number = tokenizer.line_number
      end

      yield nil, nil
    end

-    def whitespace_handler(token, parse_context)
-      if token[2] == WhitespaceControl
-        previous_token = @nodelist.last
-        if previous_token.is_a? String
-          previous_token.rstrip!
-        end
-      end
-      parse_context.trim_whitespace = (token[-3] == WhitespaceControl)
-    end
-
    def blank?
      @blank
    end

+    def warnings
+      all_warnings = []
+      nodelist.each do |node|
+        all_warnings.concat(node.warnings || []) if node.respond_to?(:warnings)
+      end
+      all_warnings
+    end
+
    def render(context)
-      output = []
+      @output ||= []
+      @output.clear
      context.resource_limits.render_score += @nodelist.length

      @nodelist.each do |token|
        # Break out if we have any unhanded interrupts.
-        break if context.interrupt?
+        break if context.has_interrupt?

        begin
          # If we get an Interrupt that means the block must stop processing. An
          # Interrupt is any command that stops block execution such as {% break %}
          # or {% continue %}
-          if token.is_a?(Continue) || token.is_a?(Break)
+          if token.is_a?(Continue) or token.is_a?(Break)
            context.push_interrupt(token.interrupt)
            break
          end

-          node_output = render_node(token, context)
+          token_output = render_token(token, context)

          unless token.is_a?(Block) && token.blank?
-            output << node_output
+            @output << token_output
          end
        rescue MemoryError => e
          raise e
-        rescue UndefinedVariable, UndefinedDropMethod, UndefinedFilter => e
-          context.handle_error(e, token.line_number, token.raw)
-          output << nil
        rescue ::StandardError => e
-          output << context.handle_error(e, token.line_number, token.raw)
+          @output << context.handle_error(e, token)
        end
      end

-      output.join
+      @output.join
    end

    private

-    def render_node(node, context)
-      node_output = (node.respond_to?(:render) ? node.render(context) : node)
-      node_output = node_output.is_a?(Array) ? node_output.join : node_output.to_s
+    def render_token(token, context)
+      token_output = (token.respond_to?(:render) ? token.render(context) : token)
+      token_str = token_output.is_a?(Array) ? token_output.join : token_output.to_s

-      context.resource_limits.render_length += node_output.length
+      context.resource_limits.render_length += token_str.length
      if context.resource_limits.reached?
        raise MemoryError.new("Memory limits exceeded".freeze)
      end
-      node_output
+      token_str
    end

-    def create_variable(token, parse_context)
+    def create_variable(token, options)
      token.scan(ContentOfVariable) do |content|
-        markup = content.first
-        return Variable.new(markup, parse_context)
+        markup = token.is_a?(Token) ? token.child(content.first) : content.first
+        return Variable.new(markup, options)
      end
-      raise_missing_variable_terminator(token, parse_context)
+      raise_missing_variable_terminator(token, options)
    end

-    def raise_missing_tag_terminator(token, parse_context)
-      raise SyntaxError.new(parse_context.locale.t("errors.syntax.tag_termination".freeze, token: token, tag_end: TagEnd.inspect))
+    def raise_missing_tag_terminator(token, options)
+      raise SyntaxError.new(options[:locale].t("errors.syntax.tag_termination".freeze, :token => token, :tag_end => TagEnd.inspect))
    end

-    def raise_missing_variable_terminator(token, parse_context)
-      raise SyntaxError.new(parse_context.locale.t("errors.syntax.variable_termination".freeze, token: token, tag_end: VariableEnd.inspect))
-    end
-
-    def registered_tags
-      Template.tags
+    def raise_missing_variable_terminator(token, options)
+      raise SyntaxError.new(options[:locale].t("errors.syntax.variable_termination".freeze, :token => token, :tag_end => VariableEnd.inspect))
    end
  end
 end
--- a/lib/liquid/condition.rb
+++ b/lib/liquid/condition.rb
@@ -8,21 +8,16 @@ module Liquid
  #
  class Condition #:nodoc:
    @@operators = {
-      '=='.freeze => ->(cond, left, right) {  cond.send(:equal_variables, left, right) },
-      '!='.freeze => ->(cond, left, right) { !cond.send(:equal_variables, left, right) },
-      '<>'.freeze => ->(cond, left, right) { !cond.send(:equal_variables, left, right) },
+      '=='.freeze => lambda { |cond, left, right|  cond.send(:equal_variables, left, right) },
+      '!='.freeze => lambda { |cond, left, right| !cond.send(:equal_variables, left, right) },
+      '<>'.freeze => lambda { |cond, left, right| !cond.send(:equal_variables, left, right) },
      '<'.freeze  => :<,
      '>'.freeze  => :>,
      '>='.freeze => :>=,
      '<='.freeze => :<=,
-      'contains'.freeze => lambda do |cond, left, right|
-        if left && right && left.respond_to?(:include?)
-          right = right.to_s if left.is_a?(String)
-          left.include?(right)
-        else
-          false
-        end
-      end
+      'contains'.freeze => lambda { |cond, left, right|
+        left && right && left.respond_to?(:include?) ? left.include?(right) : false
+      }
    }

    def self.operators
@@ -78,17 +73,17 @@ module Liquid
    private

    def equal_variables(left, right)
-      if left.is_a?(Liquid::Expression::MethodLiteral)
-        if right.respond_to?(left.method_name)
-          return right.send(left.method_name)
+      if left.is_a?(Symbol)
+        if right.respond_to?(left)
+          return right.send(left.to_s)
        else
          return nil
        end
      end

-      if right.is_a?(Liquid::Expression::MethodLiteral)
-        if left.respond_to?(right.method_name)
-          return left.send(right.method_name)
+      if right.is_a?(Symbol)
+        if left.respond_to?(right)
+          return left.send(right.to_s)
        else
          return nil
        end
@@ -101,7 +96,7 @@ module Liquid
      # If the operator is empty this means that the decision statement is just
      # a single variable. We can just poll this variable from the context and
      # return this as the result.
-      return context.evaluate(left) if op.nil?
+      return context.evaluate(left) if op == nil

      left = context.evaluate(left)
      right = context.evaluate(right)
@@ -110,23 +105,27 @@ module Liquid

      if operation.respond_to?(:call)
        operation.call(self, left, right)
-      elsif left.respond_to?(operation) && right.respond_to?(operation)
+      elsif left.respond_to?(operation) and right.respond_to?(operation)
        begin
          left.send(operation, right)
-        rescue ::ArgumentError, TypeError => e
+        rescue ::ArgumentError => e
          raise Liquid::ArgumentError.new(e.message)
        end
+      else
+        nil
      end
    end
  end

+
  class ElseCondition < Condition
    def else?
      true
    end

-    def evaluate(_context)
+    def evaluate(context)
      true
    end
  end
+
 end
--- a/lib/liquid/context.rb
+++ b/lib/liquid/context.rb
@@ -1,4 +1,5 @@
 module Liquid
+
  # Context keeps the variable stack and resolves variables, as well as keywords
  #
  #   context['variable'] = 'testing'
@@ -12,33 +13,28 @@ module Liquid
  #
  #   context['bob']  #=> nil  class Context
  class Context
-    attr_reader :scopes, :errors, :registers, :environments, :resource_limits
-    attr_accessor :exception_renderer, :template_name, :partial, :global_filter, :strict_variables, :strict_filters
+    attr_reader :scopes, :registers, :environments, :resource_limits
+    attr_accessor :exception_handler

    def initialize(environments = {}, outer_scope = {}, registers = {}, rethrow_errors = false, resource_limits = nil)
      @environments     = [environments].flatten
      @scopes           = [(outer_scope || {})]
      @registers        = registers
-      @errors           = []
-      @partial          = false
-      @strict_variables = false
      @resource_limits  = resource_limits || ResourceLimits.new(Template.default_resource_limits)
      squash_instance_assigns_with_environments

      @this_stack_used = false

-      self.exception_renderer = Template.default_exception_renderer
      if rethrow_errors
-        self.exception_renderer = ->(e) { raise }
+        self.exception_handler = ->(e) { true }
      end

-      @interrupts = []
+      @interrupts = nil
      @filters = []
-      @global_filter = nil
    end

-    def warnings
-      @warnings ||= []
+    def errors
+      @errors ||= []
    end

    def strainer
@@ -55,31 +51,30 @@ module Liquid
      @strainer = nil
    end

-    def apply_global_filter(obj)
-      global_filter.nil? ? obj : global_filter.call(obj)
-    end
-
    # are there any not handled interrupts?
-    def interrupt?
-      !@interrupts.empty?
+    def has_interrupt?
+      @interrupts && !@interrupts.empty?
    end

    # push an interrupt to the stack. this interrupt is considered not handled.
    def push_interrupt(e)
-      @interrupts.push(e)
+      (@interrupts ||= []).push(e)
    end

    # pop an interrupt from the stack
    def pop_interrupt
-      @interrupts.pop
+      @interrupts.pop if @interrupts
    end

-    def handle_error(e, line_number = nil, raw_token = nil)
-      e = internal_error unless e.is_a?(Liquid::Error)
-      e.template_name ||= template_name
-      e.line_number ||= line_number
+
+    def handle_error(e, token=nil)
+      if e.is_a?(Liquid::Error)
+        e.set_line_number_from_token(token)
+      end
+
      errors.push(e)
-      exception_renderer.call(e).to_s
+      raise if exception_handler && exception_handler.call(e)
+      Liquid::Error.render(e)
    end

    def invoke(method, *args)
@@ -87,7 +82,7 @@ module Liquid
    end

    # Push new local scope on the stack. use <tt>Context#stack</tt> instead
-    def push(new_scope = {})
+    def push(new_scope={})
      @scopes.unshift(new_scope)
      raise StackLevelError, "Nesting too deep".freeze if @scopes.length > 100
    end
@@ -111,7 +106,7 @@ module Liquid
    #   end
    #
    #   context['var]  #=> nil
-    def stack(new_scope = nil)
+    def stack(new_scope=nil)
      old_stack_used = @this_stack_used
      if new_scope
        push(new_scope)
@@ -151,7 +146,7 @@ module Liquid
      evaluate(Expression.parse(expression))
    end

-    def key?(key)
+    def has_key?(key)
      self[key] != nil
    end

@@ -161,9 +156,10 @@ module Liquid

    # Fetches an object starting at the local scope and then moving up the hierachy
    def find_variable(key)
+
      # This was changed from find() to find_index() because this is a very hot
      # path and find_index() is optimized in MRI to reduce object allocation
-      index = @scopes.find_index { |s| s.key?(key) }
+      index = @scopes.find_index { |s| s.has_key?(key) }
      scope = @scopes[index] if index

      variable = nil
@@ -178,23 +174,17 @@ module Liquid
        end
      end

-      scope ||= @environments.last || @scopes.last
-      variable ||= lookup_and_evaluate(scope, key)
+      scope     ||= @environments.last || @scopes.last
+      variable  ||= lookup_and_evaluate(scope, key)

      variable = variable.to_liquid
      variable.context = self if variable.respond_to?(:context=)

-      variable
+      return variable
    end

    def lookup_and_evaluate(obj, key)
-      if @strict_variables && obj.respond_to?(:key?) && !obj.key?(key)
-        raise Liquid::UndefinedVariable, "undefined variable #{key}"
-      end
-
-      value = obj[key]
-
-      if value.is_a?(Proc) && obj.respond_to?(:[]=)
+      if (value = obj[key]).is_a?(Proc) && obj.respond_to?(:[]=)
        obj[key] = (value.arity == 0) ? value.call : value.call(self)
      else
        value
@@ -202,23 +192,15 @@ module Liquid
    end

    private
-
-    def internal_error
-      # raise and catch to set backtrace and cause on exception
-      raise Liquid::InternalError, 'internal'
-    rescue Liquid::InternalError => exc
-      exc
-    end
-
-    def squash_instance_assigns_with_environments
-      @scopes.last.each_key do |k|
-        @environments.each do |env|
-          if env.key?(k)
-            scopes.last[k] = lookup_and_evaluate(env, k)
-            break
+      def squash_instance_assigns_with_environments
+        @scopes.last.each_key do |k|
+          @environments.each do |env|
+            if env.has_key?(k)
+              scopes.last[k] = lookup_and_evaluate(env, k)
+              break
+            end
          end
        end
-      end
-    end # squash_instance_assigns_with_environments
+      end # squash_instance_assigns_with_environments
  end # Context
 end # Liquid
--- a/lib/liquid/document.rb
+++ b/lib/liquid/document.rb
@@ -1,26 +1,23 @@
 module Liquid
  class Document < BlockBody
-    def self.parse(tokens, parse_context)
+    def self.parse(tokens, options)
      doc = new
-      doc.parse(tokens, parse_context)
+      doc.parse(tokens, options)
      doc
    end

-    def parse(tokens, parse_context)
+    def parse(tokens, options)
      super do |end_tag_name, end_tag_params|
-        unknown_tag(end_tag_name, parse_context) if end_tag_name
+        unknown_tag(end_tag_name, options) if end_tag_name
      end
-    rescue SyntaxError => e
-      e.line_number ||= parse_context.line_number
-      raise
    end

-    def unknown_tag(tag, parse_context)
+    def unknown_tag(tag, options)
      case tag
      when 'else'.freeze, 'end'.freeze
-        raise SyntaxError.new(parse_context.locale.t("errors.syntax.unexpected_outer_tag".freeze, tag: tag))
+        raise SyntaxError.new(options[:locale].t("errors.syntax.unexpected_outer_tag".freeze, :tag => tag))
      else
-        raise SyntaxError.new(parse_context.locale.t("errors.syntax.unknown_tag".freeze, tag: tag))
+        raise SyntaxError.new(options[:locale].t("errors.syntax.unknown_tag".freeze, :tag => tag))
      end
    end
  end
--- a/lib/liquid/drop.rb
+++ b/lib/liquid/drop.rb
@@ -1,6 +1,7 @@
 require 'set'

 module Liquid
+
  # A drop in liquid is a class which allows you to export DOM like things to liquid.
  # Methods of drops are callable.
  # The main use for liquid drops is to implement lazy loaded objects.
@@ -18,27 +19,28 @@ module Liquid
  #   tmpl = Liquid::Template.parse( ' {% for product in product.top_sales %} {{ product.name }} {%endfor%} '  )
  #   tmpl.render('product' => ProductDrop.new ) # will invoke top_sales query.
  #
-  # Your drop can either implement the methods sans any parameters
-  # or implement the liquid_method_missing(name) method which is a catch all.
+  # Your drop can either implement the methods sans any parameters or implement the before_method(name) method which is a
+  # catch all.
  class Drop
    attr_writer :context

+    EMPTY_STRING = ''.freeze
+
    # Catch all for the method
-    def liquid_method_missing(method)
-      return nil unless @context && @context.strict_variables
-      raise Liquid::UndefinedDropMethod, "undefined method #{method}"
+    def before_method(method)
+      nil
    end

    # called by liquid to invoke a drop
    def invoke_drop(method_or_key)
-      if self.class.invokable?(method_or_key)
+      if method_or_key && method_or_key != EMPTY_STRING && self.class.invokable?(method_or_key)
        send(method_or_key)
      else
-        liquid_method_missing(method_or_key)
+        before_method(method_or_key)
      end
    end

-    def key?(_name)
+    def has_key?(name)
      true
    end

@@ -54,25 +56,26 @@ module Liquid
      self.class.name
    end

-    alias_method :[], :invoke_drop
+    alias :[] :invoke_drop
+
+    private

    # Check for method existence without invoking respond_to?, which creates symbols
    def self.invokable?(method_name)
-      invokable_methods.include?(method_name.to_s)
+      self.invokable_methods.include?(method_name.to_s)
    end

    def self.invokable_methods
-      @invokable_methods ||= begin
+      unless @invokable_methods
        blacklist = Liquid::Drop.public_instance_methods + [:each]
-
        if include?(Enumerable)
          blacklist += Enumerable.public_instance_methods
          blacklist -= [:sort, :count, :first, :min, :max, :include?]
        end
-
        whitelist = [:to_liquid] + (public_instance_methods - blacklist)
-        Set.new(whitelist.map(&:to_s))
+        @invokable_methods = Set.new(whitelist.map(&:to_s))
      end
+      @invokable_methods
    end
  end
 end
--- a/lib/liquid/errors.rb
+++ b/lib/liquid/errors.rb
@@ -1,10 +1,9 @@
 module Liquid
  class Error < ::StandardError
    attr_accessor :line_number
-    attr_accessor :template_name
    attr_accessor :markup_context

-    def to_s(with_prefix = true)
+    def to_s(with_prefix=true)
      str = ""
      str << message_prefix if with_prefix
      str << super()
@@ -17,6 +16,20 @@ module Liquid
      str
    end

+    def set_line_number_from_token(token)
+      return unless token.respond_to?(:line_number)
+      return if self.line_number
+      self.line_number = token.line_number
+    end
+
+    def self.render(e)
+      if e.is_a?(Liquid::Error)
+        e.to_s
+      else
+        "Liquid error: #{e.to_s}"
+      end
+    end
+
    private

    def message_prefix
@@ -28,9 +41,7 @@ module Liquid
      end

      if line_number
-        str << " ("
-        str << template_name << " " if template_name
-        str << "line " << line_number.to_s << ")"
+        str << " (line #{line_number})"
      end

      str << ": "
@@ -38,19 +49,12 @@ module Liquid
    end
  end

-  ArgumentError = Class.new(Error)
-  ContextError = Class.new(Error)
-  FileSystemError = Class.new(Error)
-  StandardError = Class.new(Error)
-  SyntaxError = Class.new(Error)
-  StackLevelError = Class.new(Error)
-  TaintedError = Class.new(Error)
-  MemoryError = Class.new(Error)
-  ZeroDivisionError = Class.new(Error)
-  FloatDomainError = Class.new(Error)
-  UndefinedVariable = Class.new(Error)
-  UndefinedDropMethod = Class.new(Error)
-  UndefinedFilter = Class.new(Error)
-  MethodOverrideError = Class.new(Error)
-  InternalError = Class.new(Error)
+  class ArgumentError < Error; end
+  class ContextError < Error; end
+  class FileSystemError < Error; end
+  class StandardError < Error; end
+  class SyntaxError < Error; end
+  class StackLevelError < Error; end
+  class TaintedError < Error; end
+  class MemoryError < Error; end
 end
--- a/lib/liquid/expression.rb
+++ b/lib/liquid/expression.rb
@@ -1,24 +1,11 @@
 module Liquid
  class Expression
-    class MethodLiteral
-      attr_reader :method_name, :to_s
-
-      def initialize(method_name, to_s)
-        @method_name = method_name
-        @to_s = to_s
-      end
-
-      def to_liquid
-        to_s
-      end
-    end
-
    LITERALS = {
      nil => nil, 'nil'.freeze => nil, 'null'.freeze => nil, ''.freeze => nil,
      'true'.freeze  => true,
      'false'.freeze => false,
-      'blank'.freeze => MethodLiteral.new(:blank?, '').freeze,
-      'empty'.freeze => MethodLiteral.new(:empty?, '').freeze
+      'blank'.freeze => :blank?,
+      'empty'.freeze => :empty?
    }

    def self.parse(markup)
@@ -41,5 +28,6 @@ module Liquid
        end
      end
    end
+
  end
 end
--- a/lib/liquid/extensions.rb
+++ b/lib/liquid/extensions.rb
@@ -7,50 +7,44 @@ class String # :nodoc:
  end
 end

-class Array # :nodoc:
+class Array  # :nodoc:
  def to_liquid
    self
  end
 end

-class Hash # :nodoc:
+class Hash  # :nodoc:
  def to_liquid
    self
  end
 end

-class Numeric # :nodoc:
+class Numeric  # :nodoc:
  def to_liquid
    self
  end
 end

-class Range # :nodoc:
+class Time  # :nodoc:
  def to_liquid
    self
  end
 end

-class Time # :nodoc:
+class DateTime < Date  # :nodoc:
  def to_liquid
    self
  end
 end

-class DateTime < Date # :nodoc:
-  def to_liquid
-    self
-  end
-end
-
-class Date # :nodoc:
+class Date  # :nodoc:
  def to_liquid
    self
  end
 end

 class TrueClass
-  def to_liquid # :nodoc:
+  def to_liquid  # :nodoc:
    self
  end
 end
--- a/lib/liquid/file_system.rb
+++ b/lib/liquid/file_system.rb
@@ -8,13 +8,13 @@ module Liquid
  #
  # Example:
  #
-  #   Liquid::Template.file_system = Liquid::LocalFileSystem.new(template_path)
-  #   liquid = Liquid::Template.parse(template)
+  # Liquid::Template.file_system = Liquid::LocalFileSystem.new(template_path)
+  # liquid = Liquid::Template.parse(template)
  #
  # This will parse the template with a LocalFileSystem implementation rooted at 'template_path'.
  class BlankFileSystem
    # Called by Liquid to retrieve a template file
-    def read_template_file(_template_path)
+    def read_template_file(template_path)
      raise FileSystemError, "This liquid context does not allow includes."
    end
  end
@@ -26,10 +26,10 @@ module Liquid
  #
  # Example:
  #
-  #   file_system = Liquid::LocalFileSystem.new("/some/path")
+  # file_system = Liquid::LocalFileSystem.new("/some/path")
  #
-  #   file_system.full_path("mypartial")       # => "/some/path/_mypartial.liquid"
-  #   file_system.full_path("dir/mypartial")   # => "/some/path/dir/_mypartial.liquid"
+  # file_system.full_path("mypartial")       # => "/some/path/_mypartial.liquid"
+  # file_system.full_path("dir/mypartial")   # => "/some/path/dir/_mypartial.liquid"
  #
  # Optionally in the second argument you can specify a custom pattern for template filenames.
  # The Kernel::sprintf format specification is used.
@@ -37,9 +37,9 @@ module Liquid
  #
  # Example:
  #
-  #   file_system = Liquid::LocalFileSystem.new("/some/path", "%s.html")
+  # file_system = Liquid::LocalFileSystem.new("/some/path", "%s.html")
  #
-  #   file_system.full_path("index") # => "/some/path/index.html"
+  # file_system.full_path("index") # => "/some/path/index.html"
  #
  class LocalFileSystem
    attr_accessor :root
@@ -51,7 +51,7 @@ module Liquid

    def read_template_file(template_path)
      full_path = full_path(template_path)
-      raise FileSystemError, "No such template '#{template_path}'" unless File.exist?(full_path)
+      raise FileSystemError, "No such template '#{template_path}'" unless File.exists?(full_path)

      File.read(full_path)
    end
@@ -65,7 +65,7 @@ module Liquid
        File.join(root, @pattern % template_path)
      end

-      raise FileSystemError, "Illegal template path '#{File.expand_path(full_path)}'" unless File.expand_path(full_path).start_with?(File.expand_path(root))
+      raise FileSystemError, "Illegal template path '#{File.expand_path(full_path)}'" unless File.expand_path(full_path) =~ /\A#{File.expand_path(root)}/

      full_path
    end
--- a/lib/liquid/forloop_drop.rb
+++ b/lib/liquid/forloop_drop.rb
@@ -1,42 +0,0 @@
-module Liquid
-  class ForloopDrop < Drop
-    def initialize(name, length, parentloop)
-      @name = name
-      @length = length
-      @parentloop = parentloop
-      @index = 0
-    end
-
-    attr_reader :name, :length, :parentloop
-
-    def index
-      @index + 1
-    end
-
-    def index0
-      @index
-    end
-
-    def rindex
-      @length - @index
-    end
-
-    def rindex0
-      @length - @index - 1
-    end
-
-    def first
-      @index == 0
-    end
-
-    def last
-      @index == @length - 1
-    end
-
-    protected
-
-    def increment!
-      @index += 1
-    end
-  end
-end
--- a/lib/liquid/i18n.rb
+++ b/lib/liquid/i18n.rb
@@ -2,9 +2,10 @@ require 'yaml'

 module Liquid
  class I18n
-    DEFAULT_LOCALE = File.join(File.expand_path(__dir__), "locales", "en.yml")
+    DEFAULT_LOCALE = File.join(File.expand_path(File.dirname(__FILE__)), "locales", "en.yml")

-    TranslationError = Class.new(StandardError)
+    class TranslationError < StandardError
+    end

    attr_reader :path

@@ -22,12 +23,11 @@ module Liquid
    end

    private
-
    def interpolate(name, vars)
-      name.gsub(/%\{(\w+)\}/) do
+      name.gsub(/%\{(\w+)\}/) {
        # raise TranslationError, "Undefined key #{$1} for interpolation in translation #{name}"  unless vars[$1.to_sym]
        "#{vars[$1.to_sym]}"
-      end
+      }
    end

    def deep_fetch_translation(name)
--- a/lib/liquid/interrupts.rb
+++ b/lib/liquid/interrupts.rb
@@ -1,9 +1,10 @@
 module Liquid
+
  # An interrupt is any command that breaks processing of a block (ex: a for loop).
  class Interrupt
    attr_reader :message

-    def initialize(message = nil)
+    def initialize(message=nil)
      @message = message || "interrupt".freeze
    end
  end
--- a/lib/liquid/lexer.rb
+++ b/lib/liquid/lexer.rb
@@ -27,7 +27,7 @@ module Liquid
    def tokenize
      @output = []

-      until @ss.eos?
+      while !@ss.eos?
        @ss.skip(/\s*/)
        tok = case
        when t = @ss.scan(COMPARISON_OPERATOR) then [:comparison, t]
@@ -39,7 +39,7 @@ module Liquid
        else
          c = @ss.getch
          if s = SPECIALS[c]
-            [s, c]
+            [s,c]
          else
            raise SyntaxError, "Unexpected character #{c}"
          end
--- a/lib/liquid/locales/en.yml
+++ b/lib/liquid/locales/en.yml
@@ -1,7 +1,6 @@
 ---
  errors:
    syntax:
-      tag_unexpected_args: "Syntax Error in '%{tag}' - Valid syntax: %{tag}"
      assign: "Syntax Error in 'assign' - Valid syntax: assign [var] = [source]"
      capture: "Syntax Error in 'capture' - Valid syntax: capture [var]"
      case: "Syntax Error in 'case' - Valid syntax: case [condition]"
@@ -22,5 +21,3 @@
      tag_never_closed: "'%{block_name}' tag was never closed"
      meta_syntax_error: "Liquid syntax error: #{e.message}"
      table_row: "Syntax Error in 'table_row loop' - Valid syntax: table_row [item] in [collection] cols=3"
-    argument:
-      include: "Argument error in tag 'include' - Illegal template name"
--- a/lib/liquid/module_ex.rb
+++ b/lib/liquid/module_ex.rb
@@ -0,0 +1,64 @@
+# Copyright 2007 by Domizio Demichelis
+# This library is free software. It may be used, redistributed and/or modified
+# under the same terms as Ruby itself
+#
+# This extension is used in order to expose the object of the implementing class
+# to liquid as it were a Drop. It also limits the liquid-callable methods of the instance
+# to the allowed method passed with the liquid_methods call
+# Example:
+#
+#   class SomeClass
+#     liquid_methods :an_allowed_method
+#
+#     def an_allowed_method
+#       'this comes from an allowed method'
+#     end
+#
+#     def unallowed_method
+#       'this will never be an output'
+#     end
+#   end
+#
+# if you want to extend the drop to other methods you can defines more methods
+# in the class <YourClass>::LiquidDropClass
+#
+#   class SomeClass::LiquidDropClass
+#     def another_allowed_method
+#       'and this from another allowed method'
+#     end
+#   end
+#
+#
+# usage:
+#   @something = SomeClass.new
+#
+# template:
+#   {{something.an_allowed_method}}{{something.unallowed_method}} {{something.another_allowed_method}}
+#
+# output:
+#   'this comes from an allowed method and this from another allowed method'
+#
+# You can also chain associations, by adding the liquid_method call in the
+# association models.
+#
+class Module
+  def liquid_methods(*allowed_methods)
+    drop_class = eval "class #{self.to_s}::LiquidDropClass < Liquid::Drop; self; end"
+    
+    define_method :to_liquid do
+      drop_class.new(self)
+    end
+    
+    drop_class.class_eval do
+      def initialize(object)
+        @object = object
+      end
+      
+      allowed_methods.each do |sym|
+        define_method sym do
+          @object.send sym
+        end
+      end
+    end
+  end
+end
--- a/lib/liquid/parse_context.rb
+++ b/lib/liquid/parse_context.rb
@@ -1,37 +0,0 @@
-module Liquid
-  class ParseContext
-    attr_accessor :locale, :line_number, :trim_whitespace
-    attr_reader :partial, :warnings, :error_mode
-
-    def initialize(options = {})
-      @template_options = options ? options.dup : {}
-      @locale = @template_options[:locale] ||= I18n.new
-      @warnings = []
-      self.partial = false
-    end
-
-    def [](option_key)
-      @options[option_key]
-    end
-
-    def partial=(value)
-      @partial = value
-      @options = value ? partial_options : @template_options
-      @error_mode = @options[:error_mode] || Template.error_mode
-      value
-    end
-
-    def partial_options
-      @partial_options ||= begin
-        dont_pass = @template_options[:include_options_blacklist]
-        if dont_pass == true
-          { locale: locale }
-        elsif dont_pass.is_a?(Array)
-          @template_options.reject { |k, v| dont_pass.include?(k) }
-        else
-          @template_options
-        end
-      end
-    end
-  end
-end
--- a/lib/liquid/parser.rb
+++ b/lib/liquid/parser.rb
@@ -75,7 +75,7 @@ module Liquid

    def variable_signature
      str = consume(:id)
-      while look(:open_square)
+      if look(:open_square)
        str << consume
        str << expression
        str << consume(:close_square)
--- a/lib/liquid/parser_switching.rb
+++ b/lib/liquid/parser_switching.rb
@@ -1,25 +1,25 @@
 module Liquid
  module ParserSwitching
    def parse_with_selected_parser(markup)
-      case parse_context.error_mode
+      case @options[:error_mode] || Template.error_mode
      when :strict then strict_parse_with_error_context(markup)
      when :lax    then lax_parse(markup)
      when :warn
        begin
          return strict_parse_with_error_context(markup)
        rescue SyntaxError => e
-          parse_context.warnings << e
+          e.set_line_number_from_token(markup)
+          @warnings ||= []
+          @warnings << e
          return lax_parse(markup)
        end
      end
    end

    private
-
    def strict_parse_with_error_context(markup)
      strict_parse(markup)
    rescue SyntaxError => e
-      e.line_number = line_number
      e.markup_context = markup_context(markup)
      raise e
    end
--- a/lib/liquid/profiler.rb
+++ b/lib/liquid/profiler.rb
@@ -1,6 +1,7 @@
 require 'liquid/profiler/hooks'

 module Liquid
+
  # Profiler enables support for profiling template rendering to help track down performance issues.
  #
  # To enable profiling, first require 'liquid/profiler'.
@@ -19,7 +20,7 @@ module Liquid
  # inside of <tt>{% include %}</tt> tags.
  #
  #   profile.each do |node|
-  #     # Access to the node itself
+  #     # Access to the token itself
  #     node.code
  #
  #     # Which template and line number of this node.
@@ -46,15 +47,17 @@ module Liquid
    class Timing
      attr_reader :code, :partial, :line_number, :children

-      def initialize(node, partial)
-        @code        = node.respond_to?(:raw) ? node.raw : node
+      def initialize(token, partial)
+        @code        = token.respond_to?(:raw) ? token.raw : token
        @partial     = partial
-        @line_number = node.respond_to?(:line_number) ? node.line_number : nil
+        @line_number = token.respond_to?(:line_number) ? token.line_number : nil
        @children    = []
      end

-      def self.start(node, partial)
-        new(node, partial).tap(&:start)
+      def self.start(token, partial)
+        new(token, partial).tap do |t|
+          t.start
+        end
      end

      def start
@@ -70,11 +73,11 @@ module Liquid
      end
    end

-    def self.profile_node_render(node)
-      if Profiler.current_profile && node.respond_to?(:render)
-        Profiler.current_profile.start_node(node)
+    def self.profile_token_render(token)
+      if Profiler.current_profile && token.respond_to?(:render)
+        Profiler.current_profile.start_token(token)
        output = yield
-        Profiler.current_profile.end_node(node)
+        Profiler.current_profile.end_token(token)
        output
      else
        yield
@@ -132,11 +135,11 @@ module Liquid
      @root_timing.children.length
    end

-    def start_node(node)
-      @timing_stack.push(Timing.start(node, current_partial))
+    def start_token(token)
+      @timing_stack.push(Timing.start(token, current_partial))
    end

-    def end_node(_node)
+    def end_token(token)
      timing = @timing_stack.pop
      timing.finish

@@ -154,5 +157,6 @@ module Liquid
    def pop_partial
      @partial_stack.pop
    end
+
  end
 end
--- a/lib/liquid/profiler/hooks.rb
+++ b/lib/liquid/profiler/hooks.rb
@@ -1,18 +1,18 @@
 module Liquid
  class BlockBody
-    def render_node_with_profiling(node, context)
-      Profiler.profile_node_render(node) do
-        render_node_without_profiling(node, context)
+    def render_token_with_profiling(token, context)
+      Profiler.profile_token_render(token) do
+        render_token_without_profiling(token, context)
      end
    end

-    alias_method :render_node_without_profiling, :render_node
-    alias_method :render_node, :render_node_with_profiling
+    alias_method :render_token_without_profiling, :render_token
+    alias_method :render_token, :render_token_with_profiling
  end

  class Include < Tag
    def render_with_profiling(context)
-      Profiler.profile_children(context.evaluate(@template_name_expr).to_s) do
+      Profiler.profile_children(context.evaluate(@template_name).to_s) do
        render_without_profiling(context)
      end
    end
--- a/lib/liquid/range_lookup.rb
+++ b/lib/liquid/range_lookup.rb
@@ -16,22 +16,7 @@ module Liquid
    end

    def evaluate(context)
-      start_int = to_integer(context.evaluate(@start_obj))
-      end_int = to_integer(context.evaluate(@end_obj))
-      start_int..end_int
-    end
-
-    private
-
-    def to_integer(input)
-      case input
-      when Integer
-        input
-      when NilClass, String
-        input.to_i
-      else
-        Utils.to_integer(input)
-      end
+      context.evaluate(@start_obj).to_i..context.evaluate(@end_obj).to_i
    end
  end
 end
--- a/lib/liquid/resource_limits.rb
+++ b/lib/liquid/resource_limits.rb
@@ -1,7 +1,7 @@
 module Liquid
  class ResourceLimits
    attr_accessor :render_length, :render_score, :assign_score,
-      :render_length_limit, :render_score_limit, :assign_score_limit
+                  :render_length_limit, :render_score_limit, :assign_score_limit

    def initialize(limits)
      @render_length_limit = limits[:render_length_limit]
@@ -12,8 +12,8 @@ module Liquid

    def reached?
      (@render_length_limit && @render_length > @render_length_limit) ||
-        (@render_score_limit && @render_score > @render_score_limit) ||
-        (@assign_score_limit && @assign_score > @assign_score_limit)
+      (@render_score_limit  && @render_score  > @render_score_limit ) ||
+      (@assign_score_limit  && @assign_score  > @assign_score_limit )
    end

    def reset
--- a/lib/liquid/standardfilters.rb
+++ b/lib/liquid/standardfilters.rb
@@ -2,6 +2,7 @@ require 'cgi'
 require 'bigdecimal'

 module Liquid
+
  module StandardFilters
    HTML_ESCAPE = {
      '&'.freeze => '&amp;'.freeze,
@@ -33,7 +34,7 @@ module Liquid
    end

    def escape(input)
-      CGI.escapeHTML(input).untaint unless input.nil?
+      CGI.escapeHTML(input).untaint rescue input
    end
    alias_method :h, :escape

@@ -42,16 +43,12 @@ module Liquid
    end

    def url_encode(input)
-      CGI.escape(input) unless input.nil?
+      CGI.escape(input) rescue input
    end

-    def url_decode(input)
-      CGI.unescape(input) unless input.nil?
-    end
-
-    def slice(input, offset, length = nil)
-      offset = Utils.to_integer(offset)
-      length = length ? Utils.to_integer(length) : 1
+    def slice(input, offset, length=nil)
+      offset = Integer(offset)
+      length = length ? Integer(length) : 1

      if input.is_a?(Array)
        input.slice(offset, length) || []
@@ -62,22 +59,18 @@ module Liquid

    # Truncate a string down to x characters
    def truncate(input, length = 50, truncate_string = "...".freeze)
-      return if input.nil?
-      input_str = input.to_s
-      length = Utils.to_integer(length)
-      truncate_string_str = truncate_string.to_s
-      l = length - truncate_string_str.length
+      if input.nil? then return end
+      l = length.to_i - truncate_string.length
      l = 0 if l < 0
-      input_str.length > length ? input_str[0...l] + truncate_string_str : input_str
+      input.length > length.to_i ? input[0...l] + truncate_string : input
    end

    def truncatewords(input, words = 15, truncate_string = "...".freeze)
-      return if input.nil?
+      if input.nil? then return end
      wordlist = input.to_s.split
-      words = Utils.to_integer(words)
-      l = words - 1
+      l = words.to_i - 1
      l = 0 if l < 0
-      wordlist.length > l ? wordlist[0..l].join(" ".freeze) + truncate_string.to_s : input
+      wordlist.length > l ? wordlist[0..l].join(" ".freeze) + truncate_string : input
    end

    # Split input string into an array of substrings separated by given pattern.
@@ -86,7 +79,7 @@ module Liquid
    #   <div class="summary">{{ post | split '//' | first }}</div>
    #
    def split(input, pattern)
-      input.to_s.split(pattern.to_s)
+      input.to_s.split(pattern)
    end

    def strip(input)
@@ -122,32 +115,10 @@ module Liquid
      ary = InputIterator.new(input)
      if property.nil?
        ary.sort
-      elsif ary.empty? # The next two cases assume a non-empty array.
-        []
      elsif ary.first.respond_to?(:[]) && !ary.first[property].nil?
-        ary.sort do |a, b|
-          a = a[property]
-          b = b[property]
-          if a && b
-            a <=> b
-          else
-            a ? -1 : 1
-          end
-        end
-      end
-    end
-
-    # Sort elements of an array ignoring case if strings
-    # provide optional property with which to sort an array of hashes or drops
-    def sort_natural(input, property = nil)
-      ary = InputIterator.new(input)
-
-      if property.nil?
-        ary.sort { |a, b| a.casecmp(b) }
-      elsif ary.empty? # The next two cases assume a non-empty array.
-        []
-      elsif ary.first.respond_to?(:[]) && !ary.first[property].nil?
-        ary.sort { |a, b| a[property].casecmp(b[property]) }
+        ary.sort {|a,b| a[property] <=> b[property] }
+      elsif ary.first.respond_to?(property)
+        ary.sort {|a,b| a.send(property) <=> b.send(property) }
      end
    end

@@ -155,13 +126,10 @@ module Liquid
    # provide optional property with which to determine uniqueness
    def uniq(input, property = nil)
      ary = InputIterator.new(input)
-
      if property.nil?
-        ary.uniq
-      elsif ary.empty? # The next two cases assume a non-empty array.
-        []
-      elsif ary.first.respond_to?(:[])
-        ary.uniq{ |a| a[property] }
+        input.uniq
+      elsif input.first.respond_to?(:[])
+        input.uniq{ |a| a[property] }
      end
    end

@@ -179,44 +147,29 @@ module Liquid
        if property == "to_liquid".freeze
          e
        elsif e.respond_to?(:[])
-          r = e[property]
-          r.is_a?(Proc) ? r.call : r
+          e[property]
        end
      end
    end

-    # Remove nils within an array
-    # provide optional property with which to check for nil
-    def compact(input, property = nil)
-      ary = InputIterator.new(input)
-
-      if property.nil?
-        ary.compact
-      elsif ary.empty? # The next two cases assume a non-empty array.
-        []
-      elsif ary.first.respond_to?(:[])
-        ary.reject{ |a| a[property].nil? }
-      end
-    end
-
    # Replace occurrences of a string with another
    def replace(input, string, replacement = ''.freeze)
-      input.to_s.gsub(string.to_s, replacement.to_s)
+      input.to_s.gsub(string, replacement.to_s)
    end

    # Replace the first occurrences of a string with another
    def replace_first(input, string, replacement = ''.freeze)
-      input.to_s.sub(string.to_s, replacement.to_s)
+      input.to_s.sub(string, replacement.to_s)
    end

    # remove a substring
    def remove(input, string)
-      input.to_s.gsub(string.to_s, ''.freeze)
+      input.to_s.gsub(string, ''.freeze)
    end

    # remove the first occurrences of a substring
    def remove_first(input, string)
-      input.to_s.sub(string.to_s, ''.freeze)
+      input.to_s.sub(string, ''.freeze)
    end

    # add one string to another
@@ -225,9 +178,6 @@ module Liquid
    end

    def concat(input, array)
-      unless array.respond_to?(:to_ary)
-        raise ArgumentError.new("concat filter requires an array argument")
-      end
      InputIterator.new(input).concat(array)
    end

@@ -275,7 +225,7 @@ module Liquid
    def date(input, format)
      return input if format.to_s.empty?

-      return input unless date = Utils.to_date(input)
+      return input unless date = to_date(input)

      date.strftime(format.to_s)
    end
@@ -298,12 +248,6 @@ module Liquid
      array.last if array.respond_to?(:last)
    end

-    # absolute value
-    def abs(input)
-      result = Utils.to_number(input).abs
-      result.is_a?(BigDecimal) ? result.to_f : result
-    end
-
    # addition
    def plus(input, operand)
      apply_operation(input, operand, :+)
@@ -322,49 +266,68 @@ module Liquid
    # division
    def divided_by(input, operand)
      apply_operation(input, operand, :/)
-    rescue ::ZeroDivisionError => e
-      raise Liquid::ZeroDivisionError, e.message
    end

    def modulo(input, operand)
      apply_operation(input, operand, :%)
-    rescue ::ZeroDivisionError => e
-      raise Liquid::ZeroDivisionError, e.message
    end

    def round(input, n = 0)
-      result = Utils.to_number(input).round(Utils.to_number(n))
+      result = to_number(input).round(to_number(n))
      result = result.to_f if result.is_a?(BigDecimal)
      result = result.to_i if n == 0
      result
-    rescue ::FloatDomainError => e
-      raise Liquid::FloatDomainError, e.message
    end

    def ceil(input)
-      Utils.to_number(input).ceil.to_i
-    rescue ::FloatDomainError => e
-      raise Liquid::FloatDomainError, e.message
+      to_number(input).ceil.to_i
    end

    def floor(input)
-      Utils.to_number(input).floor.to_i
-    rescue ::FloatDomainError => e
-      raise Liquid::FloatDomainError, e.message
+      to_number(input).floor.to_i
    end

-    def default(input, default_value = ''.freeze)
-      if !input || input.respond_to?(:empty?) && input.empty?
-        default_value
-      else
-        input
-      end
+    def default(input, default_value = "".freeze)
+      is_blank = input.respond_to?(:empty?) ? input.empty? : !input
+      is_blank ? default_value : input
    end

    private

+    def to_number(obj)
+      case obj
+      when Float
+        BigDecimal.new(obj.to_s)
+      when Numeric
+        obj
+      when String
+        (obj.strip =~ /\A\d+\.\d+\z/) ? BigDecimal.new(obj) : obj.to_i
+      else
+        0
+      end
+    end
+
+    def to_date(obj)
+      return obj if obj.respond_to?(:strftime)
+
+      obj = obj.downcase if obj.is_a?(String)
+
+      case obj
+      when 'now'.freeze, 'today'.freeze
+        Time.now
+      when /\A\d+\z/, Integer
+        Time.at(obj.to_i)
+      when String
+        Time.parse(obj)
+      else
+        nil
+      end
+    rescue ArgumentError
+      nil
+    end
+
    def apply_operation(input, operand, operation)
-      result = Utils.to_number(input).send(operation, Utils.to_number(operand))
+      result = to_number(input).send(operation, to_number(operand))
      result.is_a?(BigDecimal) ? result.to_f : result
    end

@@ -388,26 +351,13 @@ module Liquid
      end

      def concat(args)
-        to_a.concat(args)
+        to_a.concat args
      end

      def reverse
        reverse_each.to_a
      end

-      def uniq(&block)
-        to_a.uniq(&block)
-      end
-
-      def compact
-        to_a.compact
-      end
-
-      def empty?
-        @input.each { return false }
-        true
-      end
-
      def each
        @input.each do |e|
          yield(e.respond_to?(:to_liquid) ? e.to_liquid : e)
--- a/lib/liquid/strainer.rb
+++ b/lib/liquid/strainer.rb
@@ -1,6 +1,7 @@
 require 'set'

 module Liquid
+
  # Strainer is the parent class for the filters system.
  # New filters are mixed into the strainer class which is then instantiated for each liquid template render run.
  #
@@ -21,25 +22,19 @@ module Liquid
      @context = context
    end

-    class << self
-      attr_reader :filter_methods
+    def self.filter_methods
+      @filter_methods
    end

    def self.add_filter(filter)
-      raise ArgumentError, "Expected module but got: #{filter.class}" unless filter.is_a?(Module)
+      raise ArgumentError, "Expected module but got: #{f.class}" unless filter.is_a?(Module)
      unless self.class.include?(filter)
-        invokable_non_public_methods = (filter.private_instance_methods + filter.protected_instance_methods).select { |m| invokable?(m) }
-        if invokable_non_public_methods.any?
-          raise MethodOverrideError, "Filter overrides registered public methods as non public: #{invokable_non_public_methods.join(', ')}"
-        else
-          send(:include, filter)
-          @filter_methods.merge(filter.public_instance_methods.map(&:to_s))
-        end
+        self.send(:include, filter)
+        @filter_methods.merge(filter.public_instance_methods.map(&:to_s))
      end
    end

    def self.global_filter(filter)
-      @@strainer_class_cache.clear
      @@global_strainer.add_filter(filter)
    end

@@ -54,13 +49,11 @@ module Liquid
    def invoke(method, *args)
      if self.class.invokable?(method)
        send(method, *args)
-      elsif @context && @context.strict_filters
-        raise Liquid::UndefinedFilter, "undefined filter #{method}"
      else
        args.first
      end
    rescue ::ArgumentError => e
-      raise Liquid::ArgumentError, e.message, e.backtrace
+      raise Liquid::ArgumentError.new(e.message)
    end
  end
 end
--- a/lib/liquid/tablerowloop_drop.rb
+++ b/lib/liquid/tablerowloop_drop.rb
@@ -1,62 +0,0 @@
-module Liquid
-  class TablerowloopDrop < Drop
-    def initialize(length, cols)
-      @length = length
-      @row = 1
-      @col = 1
-      @cols = cols
-      @index = 0
-    end
-
-    attr_reader :length, :col, :row
-
-    def index
-      @index + 1
-    end
-
-    def index0
-      @index
-    end
-
-    def col0
-      @col - 1
-    end
-
-    def rindex
-      @length - @index
-    end
-
-    def rindex0
-      @length - @index - 1
-    end
-
-    def first
-      @index == 0
-    end
-
-    def last
-      @index == @length - 1
-    end
-
-    def col_first
-      @col == 1
-    end
-
-    def col_last
-      @col == @cols
-    end
-
-    protected
-
-    def increment!
-      @index += 1
-
-      if @col == @cols
-        @col = 1
-        @row += 1
-      else
-        @col += 1
-      end
-    end
-  end
-end
--- a/lib/liquid/tag.rb
+++ b/lib/liquid/tag.rb
@@ -1,27 +1,26 @@
 module Liquid
  class Tag
-    attr_reader :nodelist, :tag_name, :line_number, :parse_context
-    alias_method :options, :parse_context
+    attr_accessor :options, :line_number
+    attr_reader :nodelist, :warnings
    include ParserSwitching

    class << self
-      def parse(tag_name, markup, tokenizer, options)
+      def parse(tag_name, markup, tokens, options)
        tag = new(tag_name, markup, options)
-        tag.parse(tokenizer)
+        tag.parse(tokens)
        tag
      end

      private :new
    end

-    def initialize(tag_name, markup, parse_context)
+    def initialize(tag_name, markup, options)
      @tag_name   = tag_name
      @markup     = markup
-      @parse_context = parse_context
-      @line_number = parse_context.line_number
+      @options    = options
    end

-    def parse(_tokens)
+    def parse(tokens)
    end

    def raw
@@ -32,7 +31,7 @@ module Liquid
      self.class.name.downcase
    end

-    def render(_context)
+    def render(context)
      ''.freeze
    end

--- a/lib/liquid/tags/assign.rb
+++ b/lib/liquid/tags/assign.rb
@@ -1,4 +1,5 @@
 module Liquid
+
  # Assign sets a variable in your template.
  #
  #   {% assign foo = 'monkey' %}
@@ -14,7 +15,8 @@ module Liquid
      super
      if markup =~ Syntax
        @to = $1
-        @from = Variable.new($2, options)
+        @from = Variable.new($2,options)
+        @from.line_number = line_number
      else
        raise SyntaxError.new options[:locale].t("errors.syntax.assign".freeze)
      end
@@ -23,28 +25,16 @@ module Liquid
    def render(context)
      val = @from.render(context)
      context.scopes.last[@to] = val
-      context.resource_limits.assign_score += assign_score_of(val)
+
+      inc = val.instance_of?(String) || val.instance_of?(Array) || val.instance_of?(Hash) ? val.length : 1
+      context.resource_limits.assign_score += inc
+
      ''.freeze
    end

    def blank?
      true
    end
-
-    private
-
-    def assign_score_of(val)
-      if val.instance_of?(String)
-        val.length
-      elsif val.instance_of?(Array) || val.instance_of?(Hash)
-        sum = 1
-        # Uses #each to avoid extra allocations.
-        val.each { |child| sum += assign_score_of(child) }
-        sum
-      else
-        1
-      end
-    end
  end

  Template.register_tag('assign'.freeze, Assign)
--- a/lib/liquid/tags/break.rb
+++ b/lib/liquid/tags/break.rb
@@ -1,4 +1,5 @@
 module Liquid
+
  # Break tag to be used to break out of a for loop.
  #
  # == Basic Usage:
@@ -9,9 +10,11 @@ module Liquid
  #    {% endfor %}
  #
  class Break < Tag
+
    def interrupt
      BreakInterrupt.new
    end
+
  end

  Template.register_tag('break'.freeze, Break)
--- a/lib/liquid/tags/case.rb
+++ b/lib/liquid/tags/case.rb
@@ -16,7 +16,7 @@ module Liquid

    def parse(tokens)
      body = BlockBody.new
-      while parse_body(body, tokens)
+      while more = parse_body(body, tokens)
        body = @blocks.last.attachment
      end
    end
@@ -59,7 +59,7 @@ module Liquid
      body = BlockBody.new

      while markup
-        unless markup =~ WhenSyntax
+        if not markup =~ WhenSyntax
          raise SyntaxError.new(options[:locale].t("errors.syntax.case_invalid_when".freeze))
        end

@@ -72,7 +72,7 @@ module Liquid
    end

    def record_else_condition(markup)
-      unless markup.strip.empty?
+      if not markup.strip.empty?
        raise SyntaxError.new(options[:locale].t("errors.syntax.case_invalid_else".freeze))
      end

--- a/lib/liquid/tags/comment.rb
+++ b/lib/liquid/tags/comment.rb
@@ -1,10 +1,10 @@
 module Liquid
  class Comment < Block
-    def render(_context)
+    def render(context)
      ''.freeze
    end

-    def unknown_tag(_tag, _markup, _tokens)
+    def unknown_tag(tag, markup, tokens)
    end

    def blank?
--- a/lib/liquid/tags/cycle.rb
+++ b/lib/liquid/tags/cycle.rb
@@ -37,7 +37,7 @@ module Liquid
        iteration = context.registers[:cycle][key]
        result = context.evaluate(@variables[iteration])
        iteration += 1
-        iteration  = 0 if iteration >= @variables.size
+        iteration  = 0  if iteration >= @variables.size
        context.registers[:cycle][key] = iteration
        result
      end
--- a/lib/liquid/tags/decrement.rb
+++ b/lib/liquid/tags/decrement.rb
@@ -1,4 +1,5 @@
 module Liquid
+
  # decrement is used in a place where one needs to insert a counter
  #     into a template, and needs the counter to survive across
  #     multiple instantiations of the template.
@@ -25,10 +26,12 @@ module Liquid

    def render(context)
      value = context.environments.first[@variable] ||= 0
-      value -= 1
+      value = value - 1
      context.environments.first[@variable] = value
      value.to_s
    end
+
+    private
  end

  Template.register_tag('decrement'.freeze, Decrement)
--- a/lib/liquid/tags/for.rb
+++ b/lib/liquid/tags/for.rb
@@ -1,4 +1,5 @@
 module Liquid
+
  # "For" iterates over an array or collection.
  # Several useful variables are available to you within the loop.
  #
@@ -48,15 +49,14 @@ module Liquid

    def initialize(tag_name, markup, options)
      super
-      @from = @limit = nil
      parse_with_selected_parser(markup)
      @for_block = BlockBody.new
-      @else_block = nil
    end

    def parse(tokens)
-      return unless parse_body(@for_block, tokens)
-      parse_body(@else_block, tokens)
+      if more = parse_body(@for_block, tokens)
+        parse_body(@else_block, tokens)
+      end
    end

    def nodelist
@@ -69,13 +69,64 @@ module Liquid
    end

    def render(context)
-      segment = collection_segment(context)
+      context.registers[:for] ||= Hash.new(0)

-      if segment.empty?
-        render_else(context)
+      collection = context.evaluate(@collection_name)
+      collection = collection.to_a if collection.is_a?(Range)
+
+      # Maintains Ruby 1.8.7 String#each behaviour on 1.9
+      return render_else(context) unless iterable?(collection)
+
+      from = if @from == :continue
+        context.registers[:for][@name].to_i
      else
-        render_segment(context, segment)
+        context.evaluate(@from).to_i
      end
+
+      limit = context.evaluate(@limit)
+      to    = limit ? limit.to_i + from : nil
+
+      segment = Utils.slice_collection(collection, from, to)
+
+      return render_else(context) if segment.empty?
+
+      segment.reverse! if @reversed
+
+      result = ''
+
+      length = segment.length
+
+      # Store our progress through the collection for the continue flag
+      context.registers[:for][@name] = from + segment.length
+
+      parent_loop = context['forloop'.freeze]
+
+      context.stack do
+        segment.each_with_index do |item, index|
+          context[@variable_name] = item
+          context['forloop'.freeze] = {
+            'name'.freeze       => @name,
+            'length'.freeze     => length,
+            'index'.freeze      => index + 1,
+            'index0'.freeze     => index,
+            'rindex'.freeze     => length - index,
+            'rindex0'.freeze    => length - index - 1,
+            'first'.freeze      => (index == 0),
+            'last'.freeze       => (index == length - 1),
+            'parentloop'.freeze => parent_loop
+          }
+
+          result << @for_block.render(context)
+
+          # Handle any interrupts if they exist.
+          if context.has_interrupt?
+            interrupt = context.pop_interrupt
+            break if interrupt.is_a? BreakInterrupt
+            next if interrupt.is_a? ContinueInterrupt
+          end
+        end
+      end
+      result
    end

    protected
@@ -84,7 +135,7 @@ module Liquid
      if markup =~ Syntax
        @variable_name = $1
        collection_name = $2
-        @reversed = !!$3
+        @reversed = $3
        @name = "#{@variable_name}-#{collection_name}"
        @collection_name = Expression.parse(collection_name)
        markup.scan(TagAttributes) do |key, value|
@@ -98,7 +149,7 @@ module Liquid
    def strict_parse(markup)
      p = Parser.new(markup)
      @variable_name = p.consume(:id)
-      raise SyntaxError.new(options[:locale].t("errors.syntax.for_invalid_in".freeze)) unless p.id?('in'.freeze)
+      raise SyntaxError.new(options[:locale].t("errors.syntax.for_invalid_in".freeze))  unless p.id?('in'.freeze)
      collection_name = p.expression
      @name = "#{@variable_name}-#{collection_name}"
      @collection_name = Expression.parse(collection_name)
@@ -116,63 +167,6 @@ module Liquid

    private

-    def collection_segment(context)
-      offsets = context.registers[:for] ||= Hash.new(0)
-
-      from = if @from == :continue
-        offsets[@name].to_i
-      else
-        context.evaluate(@from).to_i
-      end
-
-      collection = context.evaluate(@collection_name)
-      collection = collection.to_a if collection.is_a?(Range)
-
-      limit = context.evaluate(@limit)
-      to = limit ? limit.to_i + from : nil
-
-      segment = Utils.slice_collection(collection, from, to)
-      segment.reverse! if @reversed
-
-      offsets[@name] = from + segment.length
-
-      segment
-    end
-
-    def render_segment(context, segment)
-      for_stack = context.registers[:for_stack] ||= []
-      length = segment.length
-
-      result = ''
-
-      context.stack do
-        loop_vars = Liquid::ForloopDrop.new(@name, length, for_stack[-1])
-
-        for_stack.push(loop_vars)
-
-        begin
-          context['forloop'.freeze] = loop_vars
-
-          segment.each_with_index do |item, index|
-            context[@variable_name] = item
-            result << @for_block.render(context)
-            loop_vars.send(:increment!)
-
-            # Handle any interrupts if they exist.
-            if context.interrupt?
-              interrupt = context.pop_interrupt
-              break if interrupt.is_a? BreakInterrupt
-              next if interrupt.is_a? ContinueInterrupt
-            end
-          end
-        ensure
-          for_stack.pop
-        end
-      end
-
-      result
-    end
-
    def set_attribute(key, expr)
      case key
      when 'offset'.freeze
@@ -189,6 +183,10 @@ module Liquid
    def render_else(context)
      @else_block ? @else_block.render(context) : ''.freeze
    end
+
+    def iterable?(collection)
+      collection.respond_to?(:each) || Utils.non_blank_string?(collection)
+    end
  end

  Template.register_tag('for'.freeze, For)
--- a/lib/liquid/tags/if.rb
+++ b/lib/liquid/tags/if.rb
@@ -21,7 +21,7 @@ module Liquid
    end

    def parse(tokens)
-      while parse_body(@blocks.last.attachment, tokens)
+      while more = parse_body(@blocks.last.attachment, tokens)
      end
    end

@@ -50,61 +50,61 @@ module Liquid

    private

-    def push_block(tag, markup)
-      block = if tag == 'else'.freeze
-        ElseCondition.new
-      else
-        parse_with_selected_parser(markup)
+      def push_block(tag, markup)
+        block = if tag == 'else'.freeze
+          ElseCondition.new
+        else
+          parse_with_selected_parser(markup)
+        end
+
+        @blocks.push(block)
+        block.attach(BlockBody.new)
      end

-      @blocks.push(block)
-      block.attach(BlockBody.new)
-    end
+      def lax_parse(markup)
+        expressions = markup.scan(ExpressionsAndOperators)
+        raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless expressions.pop =~ Syntax

-    def lax_parse(markup)
-      expressions = markup.scan(ExpressionsAndOperators)
-      raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless expressions.pop =~ Syntax
+        condition = Condition.new(Expression.parse($1), $2, Expression.parse($3))

-      condition = Condition.new(Expression.parse($1), $2, Expression.parse($3))
+        while not expressions.empty?
+          operator = expressions.pop.to_s.strip

-      until expressions.empty?
-        operator = expressions.pop.to_s.strip
+          raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless expressions.pop.to_s =~ Syntax

-        raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless expressions.pop.to_s =~ Syntax
+          new_condition = Condition.new(Expression.parse($1), $2, Expression.parse($3))
+          raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless BOOLEAN_OPERATORS.include?(operator)
+          new_condition.send(operator, condition)
+          condition = new_condition
+        end

-        new_condition = Condition.new(Expression.parse($1), $2, Expression.parse($3))
-        raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless BOOLEAN_OPERATORS.include?(operator)
-        new_condition.send(operator, condition)
-        condition = new_condition
+        condition
      end

-      condition
-    end
+      def strict_parse(markup)
+        p = Parser.new(markup)

-    def strict_parse(markup)
-      p = Parser.new(markup)
-      condition = parse_binary_comparison(p)
-      p.consume(:end_of_string)
-      condition
-    end
+        condition = parse_comparison(p)

-    def parse_binary_comparison(p)
-      condition = parse_comparison(p)
-      if op = (p.id?('and'.freeze) || p.id?('or'.freeze))
-        condition.send(op, parse_binary_comparison(p))
+        while op = (p.id?('and'.freeze) || p.id?('or'.freeze))
+          new_cond = parse_comparison(p)
+          new_cond.send(op, condition)
+          condition = new_cond
+        end
+        p.consume(:end_of_string)
+
+        condition
      end
-      condition
-    end

-    def parse_comparison(p)
-      a = Expression.parse(p.expression)
-      if op = p.consume?(:comparison)
-        b = Expression.parse(p.expression)
-        Condition.new(a, op, b)
-      else
-        Condition.new(a)
+      def parse_comparison(p)
+        a = Expression.parse(p.expression)
+        if op = p.consume?(:comparison)
+          b = Expression.parse(p.expression)
+          Condition.new(a, op, b)
+        else
+          Condition.new(a)
+        end
      end
-    end
  end

  Template.register_tag('if'.freeze, If)
--- a/lib/liquid/tags/ifchanged.rb
+++ b/lib/liquid/tags/ifchanged.rb
@@ -1,7 +1,9 @@
 module Liquid
  class Ifchanged < Block
+
    def render(context)
      context.stack do
+
        output = super

        if output != context.registers[:ifchanged]
--- a/lib/liquid/tags/include.rb
+++ b/lib/liquid/tags/include.rb
@@ -1,4 +1,5 @@
 module Liquid
+
  # Include allows templates to relate with other templates
  #
  # Simply include another template:
@@ -24,9 +25,10 @@ module Liquid
        template_name = $1
        variable_name = $3

-        @variable_name_expr = variable_name ? Expression.parse(variable_name) : nil
-        @template_name_expr = Expression.parse(template_name)
-        @attributes = {}
+        @variable_name = Expression.parse(variable_name || template_name[1..-2])
+        @context_variable_name = template_name[1..-2].split('/'.freeze).last
+        @template_name = Expression.parse(template_name)
+        @attributes    = {}

        markup.scan(TagAttributes) do |key, value|
          @attributes[key] = Expression.parse(value)
@@ -37,76 +39,60 @@ module Liquid
      end
    end

-    def parse(_tokens)
+    def parse(tokens)
    end

    def render(context)
-      template_name = context.evaluate(@template_name_expr)
-      raise ArgumentError.new(options[:locale].t("errors.argument.include")) unless template_name
+      partial = load_cached_partial(context)
+      variable = context.evaluate(@variable_name)

-      partial = load_cached_partial(template_name, context)
-      context_variable_name = template_name.split('/'.freeze).last
+      context.stack do
+        @attributes.each do |key, value|
+          context[key] = context.evaluate(value)
+        end

-      variable = if @variable_name_expr
-        context.evaluate(@variable_name_expr)
-      else
-        context.find_variable(template_name)
-      end
-
-      old_template_name = context.template_name
-      old_partial = context.partial
-      begin
-        context.template_name = template_name
-        context.partial = true
-        context.stack do
-          @attributes.each do |key, value|
-            context[key] = context.evaluate(value)
-          end
-
-          if variable.is_a?(Array)
-            variable.collect do |var|
-              context[context_variable_name] = var
-              partial.render(context)
-            end
-          else
-            context[context_variable_name] = variable
+        if variable.is_a?(Array)
+          variable.collect do |var|
+            context[@context_variable_name] = var
            partial.render(context)
          end
+        else
+          context[@context_variable_name] = variable
+          partial.render(context)
        end
-      ensure
-        context.template_name = old_template_name
-        context.partial = old_partial
      end
    end

    private
+      def load_cached_partial(context)
+        cached_partials = context.registers[:cached_partials] || {}
+        template_name = context.evaluate(@template_name)

-    alias_method :parse_context, :options
-    private :parse_context
-
-    def load_cached_partial(template_name, context)
-      cached_partials = context.registers[:cached_partials] || {}
-
-      if cached = cached_partials[template_name]
-        return cached
+        if cached = cached_partials[template_name]
+          return cached
+        end
+        source = read_template_from_file_system(context)
+        partial = Liquid::Template.parse(source, pass_options)
+        cached_partials[template_name] = partial
+        context.registers[:cached_partials] = cached_partials
+        partial
      end
-      source = read_template_from_file_system(context)
-      begin
-        parse_context.partial = true
-        partial = Liquid::Template.parse(source, parse_context)
-      ensure
-        parse_context.partial = false
+
+      def read_template_from_file_system(context)
+        file_system = context.registers[:file_system] || Liquid::Template.file_system
+
+        file_system.read_template_file(context.evaluate(@template_name))
      end
-      cached_partials[template_name] = partial
-      context.registers[:cached_partials] = cached_partials
-      partial
-    end

-    def read_template_from_file_system(context)
-      file_system = context.registers[:file_system] || Liquid::Template.file_system
-
-      file_system.read_template_file(context.evaluate(@template_name_expr))
-    end
+      def pass_options
+        dont_pass = @options[:include_options_blacklist]
+        return {locale: @options[:locale]} if dont_pass == true
+        opts = @options.merge(included: true, include_options_blacklist: false)
+        if dont_pass.is_a?(Array)
+          dont_pass.each {|o| opts.delete(o)}
+        end
+        opts
+      end
  end

  Template.register_tag('include'.freeze, Include)
--- a/lib/liquid/tags/raw.rb
+++ b/lib/liquid/tags/raw.rb
@@ -1,14 +1,7 @@
 module Liquid
  class Raw < Block
-    Syntax = /\A\s*\z/
    FullTokenPossiblyInvalid = /\A(.*)#{TagStart}\s*(\w+)\s*(.*)?#{TagEnd}\z/om

-    def initialize(tag_name, markup, parse_context)
-      super
-
-      ensure_valid_markup(tag_name, markup, parse_context)
-    end
-
    def parse(tokens)
      @body = ''
      while token = tokens.shift
@@ -16,13 +9,11 @@ module Liquid
          @body << $1 if $1 != "".freeze
          return if block_delimiter == $2
        end
-        @body << token unless token.empty?
+        @body << token if not token.empty?
      end
-
-      raise SyntaxError.new(parse_context.locale.t("errors.syntax.tag_never_closed".freeze, block_name: block_name))
    end

-    def render(_context)
+    def render(context)
      @body
    end

@@ -33,14 +24,6 @@ module Liquid
    def blank?
      @body.empty?
    end
-
-    protected
-
-    def ensure_valid_markup(tag_name, markup, parse_context)
-      unless markup =~ Syntax
-        raise SyntaxError.new(parse_context.locale.t("errors.syntax.tag_unexpected_args".freeze, tag: tag_name))
-      end
-    end
  end

  Template.register_tag('raw'.freeze, Raw)
--- a/lib/liquid/tags/table_row.rb
+++ b/lib/liquid/tags/table_row.rb
@@ -28,21 +28,39 @@ module Liquid

      cols = context.evaluate(@attributes['cols'.freeze]).to_i

+      row = 1
+      col = 0
+
      result = "<tr class=\"row1\">\n"
      context.stack do
-        tablerowloop = Liquid::TablerowloopDrop.new(length, cols)
-        context['tablerowloop'.freeze] = tablerowloop

        collection.each_with_index do |item, index|
          context[@variable_name] = item
+          context['tablerowloop'.freeze] = {
+            'length'.freeze    => length,
+            'index'.freeze     => index + 1,
+            'index0'.freeze    => index,
+            'col'.freeze       => col + 1,
+            'col0'.freeze      => col,
+            'rindex'.freeze    => length - index,
+            'rindex0'.freeze   => length - index - 1,
+            'first'.freeze     => (index == 0),
+            'last'.freeze      => (index == length - 1),
+            'col_first'.freeze => (col == 0),
+            'col_last'.freeze  => (col == cols - 1)
+          }

-          result << "<td class=\"col#{tablerowloop.col}\">" << super << '</td>'

-          if tablerowloop.col_last && !tablerowloop.last
-            result << "</tr>\n<tr class=\"row#{tablerowloop.row + 1}\">"
+          col += 1
+
+          result << "<td class=\"col#{col}\">" << super << '</td>'
+
+          if col == cols and (index != length - 1)
+            col  = 0
+            row += 1
+            result << "</tr>\n<tr class=\"row#{row}\">"
          end

-          tablerowloop.send(:increment!)
        end
      end
      result << "</tr>\n"
--- a/lib/liquid/tags/unless.rb
+++ b/lib/liquid/tags/unless.rb
@@ -1,4 +1,4 @@
-require_relative 'if'
+require File.dirname(__FILE__) + '/if'

 module Liquid
  # Unless is a conditional just like 'if' but works on the inverse logic.
@@ -8,6 +8,7 @@ module Liquid
  class Unless < If
    def render(context)
      context.stack do
+
        # First condition is interpreted backwards ( if not )
        first_block = @blocks.first
        unless first_block.evaluate(context)
--- a/lib/liquid/template.rb
+++ b/lib/liquid/template.rb
@@ -1,4 +1,5 @@
 module Liquid
+
  # Templates are central to liquid.
  # Interpretating templates is a two step process. First you compile the
  # source code you got. During compile time some extensive error checking is performed.
@@ -13,21 +14,23 @@ module Liquid
  #   template.render('user_name' => 'bob')
  #
  class Template
+    DEFAULT_OPTIONS = {
+      :locale => I18n.new
+    }
+
    attr_accessor :root
-    attr_reader :resource_limits, :warnings
+    attr_reader :resource_limits

    @@file_system = BlankFileSystem.new

    class TagRegistry
-      include Enumerable
-
      def initialize
-        @tags = {}
+        @tags  = {}
        @cache = {}
      end

      def [](tag_name)
-        return nil unless @tags.key?(tag_name)
+        return nil unless @tags.has_key?(tag_name)
        return @cache[tag_name] if Liquid.cache_classes

        lookup_class(@tags[tag_name]).tap { |o| @cache[tag_name] = o }
@@ -43,10 +46,6 @@ module Liquid
        @cache.delete(tag_name)
      end

-      def each(&block)
-        @tags.each(&block)
-      end
-
      private

      def lookup_class(name)
@@ -69,11 +68,6 @@ module Liquid
      # :error raises an error when tainted output is used
      attr_writer :taint_mode

-      attr_accessor :default_exception_renderer
-      Template.default_exception_renderer = lambda do |exception|
-        exception
-      end
-
      def file_system
        @@file_system
      end
@@ -91,11 +85,11 @@ module Liquid
      end

      def error_mode
-        @error_mode ||= :lax
+        @error_mode || :lax
      end

      def taint_mode
-        @taint_mode ||= :lax
+        @taint_mode || :lax
      end

      # Pass a module with filter methods which should be available
@@ -118,7 +112,6 @@ module Liquid
    end

    def initialize
-      @rethrow_errors = false
      @resource_limits = ResourceLimits.new(self.class.default_resource_limits)
    end

@@ -128,12 +121,16 @@ module Liquid
      @options = options
      @profiling = options[:profile]
      @line_numbers = options[:line_numbers] || @profiling
-      parse_context = options.is_a?(ParseContext) ? options : ParseContext.new(options)
-      @root = Document.parse(tokenize(source), parse_context)
-      @warnings = parse_context.warnings
+      @root = Document.parse(tokenize(source), DEFAULT_OPTIONS.merge(options))
+      @warnings = nil
      self
    end

+    def warnings
+      return [] unless @root
+      @warnings ||= @root.warnings
+    end
+
    def registers
      @registers ||= {}
    end
@@ -172,7 +169,7 @@ module Liquid
        c = args.shift

        if @rethrow_errors
-          c.exception_renderer = ->(e) { raise }
+          c.exception_handler = ->(e) { true }
        end

        c
@@ -191,10 +188,20 @@ module Liquid
      when Hash
        options = args.pop

-        registers.merge!(options[:registers]) if options[:registers].is_a?(Hash)
+        if options[:registers].is_a?(Hash)
+          self.registers.merge!(options[:registers])
+        end

-        apply_options_to_context(context, options)
-      when Module, Array
+        if options[:filters]
+          context.add_filters(options[:filters])
+        end
+
+        if options[:exception_handler]
+          context.exception_handler = options[:exception_handler]
+        end
+      when Module
+        context.add_filters(args.pop)
+      when Array
        context.add_filters(args.pop)
      end

@@ -204,7 +211,7 @@ module Liquid
      begin
        # render the nodelist.
        # for performance reasons we get an array back here. join will make a string out of it.
-        result = with_profiling(context) do
+        result = with_profiling do
          @root.render(context)
        end
        result.respond_to?(:join) ? result.join : result
@@ -222,12 +229,32 @@ module Liquid

    private

+    # Uses the <tt>Liquid::TemplateParser</tt> regexp to tokenize the passed source
    def tokenize(source)
-      Tokenizer.new(source, @line_numbers)
+      source = source.source if source.respond_to?(:source)
+      return [] if source.to_s.empty?
+
+      tokens = calculate_line_numbers(source.split(TemplateParser))
+
+      # removes the rogue empty element at the beginning of the array
+      tokens.shift if tokens[0] and tokens[0].empty?
+
+      tokens
    end

-    def with_profiling(context)
-      if @profiling && !context.partial
+    def calculate_line_numbers(raw_tokens)
+      return raw_tokens unless @line_numbers
+
+      current_line = 1
+      raw_tokens.map do |token|
+        Token.new(token, current_line).tap do
+          current_line += token.count("\n")
+        end
+      end
+    end
+
+    def with_profiling
+      if @profiling && !@options[:included]
        raise "Profiler not loaded, require 'liquid/profiler' first" unless defined?(Liquid::Profiler)

        @profiler = Profiler.new
@@ -242,13 +269,5 @@ module Liquid
        yield
      end
    end
-
-    def apply_options_to_context(context, options)
-      context.add_filters(options[:filters]) if options[:filters]
-      context.global_filter = options[:global_filter] if options[:global_filter]
-      context.exception_renderer = options[:exception_renderer] if options[:exception_renderer]
-      context.strict_variables = options[:strict_variables] if options[:strict_variables]
-      context.strict_filters = options[:strict_filters] if options[:strict_filters]
-    end
  end
 end
--- a/lib/liquid/token.rb
+++ b/lib/liquid/token.rb
@@ -0,0 +1,18 @@
+module Liquid
+  class Token < String
+    attr_reader :line_number
+
+    def initialize(content, line_number)
+      super(content)
+      @line_number = line_number
+    end
+
+    def raw
+      "<raw>"
+    end
+
+    def child(string)
+      Token.new(string, @line_number)
+    end
+  end
+end
--- a/lib/liquid/tokenizer.rb
+++ b/lib/liquid/tokenizer.rb
@@ -1,31 +0,0 @@
-module Liquid
-  class Tokenizer
-    attr_reader :line_number
-
-    def initialize(source, line_numbers = false)
-      @source = source
-      @line_number = line_numbers ? 1 : nil
-      @tokens = tokenize
-    end
-
-    def shift
-      token = @tokens.shift
-      @line_number += token.count("\n") if @line_number && token
-      token
-    end
-
-    private
-
-    def tokenize
-      @source = @source.source if @source.respond_to?(:source)
-      return [] if @source.to_s.empty?
-
-      tokens = @source.split(TemplateParser)
-
-      # removes the rogue empty element at the beginning of the array
-      tokens.shift if tokens[0] && tokens[0].empty?
-
-      tokens
-    end
-  end
-end
--- a/lib/liquid/utils.rb
+++ b/lib/liquid/utils.rb
@@ -1,24 +1,27 @@
 module Liquid
  module Utils
+
    def self.slice_collection(collection, from, to)
-      if (from != 0 || !to.nil?) && collection.respond_to?(:load_slice)
+      if (from != 0 || to != nil) && collection.respond_to?(:load_slice)
        collection.load_slice(from, to)
      else
        slice_collection_using_each(collection, from, to)
      end
    end

+    def self.non_blank_string?(collection)
+      collection.is_a?(String) && collection != ''.freeze
+    end
+
    def self.slice_collection_using_each(collection, from, to)
      segments = []
      index = 0

      # Maintains Ruby 1.8.7 String#each behaviour on 1.9
-      if collection.is_a?(String)
-        return collection.empty? ? [] : [collection]
-      end
-      return [] unless collection.respond_to?(:each)
+      return [collection] if non_blank_string?(collection)

      collection.each do |item|
+
        if to && to <= index
          break
        end
@@ -32,52 +35,5 @@ module Liquid

      segments
    end
-
-    def self.to_integer(num)
-      return num if num.is_a?(Integer)
-      num = num.to_s
-      begin
-        Integer(num)
-      rescue ::ArgumentError
-        raise Liquid::ArgumentError, "invalid integer"
-      end
-    end
-
-    def self.to_number(obj)
-      case obj
-      when Float
-        BigDecimal.new(obj.to_s)
-      when Numeric
-        obj
-      when String
-        (obj.strip =~ /\A-?\d+\.\d+\z/) ? BigDecimal.new(obj) : obj.to_i
-      else
-        if obj.respond_to?(:to_number)
-          obj.to_number
-        else
-          0
-        end
-      end
-    end
-
-    def self.to_date(obj)
-      return obj if obj.respond_to?(:strftime)
-
-      if obj.is_a?(String)
-        return nil if obj.empty?
-        obj = obj.downcase
-      end
-
-      case obj
-      when 'now'.freeze, 'today'.freeze
-        Time.now
-      when /\A\d+\z/, Integer
-        Time.at(obj.to_i)
-      when String
-        Time.parse(obj)
-      end
-    rescue ::ArgumentError
-      nil
-    end
  end
 end
--- a/lib/liquid/variable.rb
+++ b/lib/liquid/variable.rb
@@ -1,4 +1,5 @@
 module Liquid
+
  # Holds variables. Variables are only loaded "just in time"
  # and are not evaluated as part of the render stage
  #
@@ -11,16 +12,14 @@ module Liquid
  #
  class Variable
    FilterParser = /(?:\s+|#{QuotedFragment}|#{ArgumentSeparator})+/o
-    attr_accessor :filters, :name, :line_number
-    attr_reader :parse_context
-    alias_method :options, :parse_context
+    attr_accessor :filters, :name, :warnings
+    attr_accessor :line_number
    include ParserSwitching

-    def initialize(markup, parse_context)
+    def initialize(markup, options = {})
      @markup  = markup
      @name    = nil
-      @parse_context = parse_context
-      @line_number = parse_context.line_number
+      @options = options || {}

      parse_with_selected_parser(markup)
    end
@@ -34,25 +33,28 @@ module Liquid
    end

    def lax_parse(markup)
-      @filters = []
-      return unless markup =~ /(#{QuotedFragment})(.*)/om
-
-      name_markup = $1
-      filter_markup = $2
-      @name = Expression.parse(name_markup)
-      if filter_markup =~ /#{FilterSeparator}\s*(.*)/om
-        filters = $1.scan(FilterParser)
-        filters.each do |f|
-          next unless f =~ /\w+/
-          filtername = Regexp.last_match(0)
-          filterargs = f.scan(/(?:#{FilterArgumentSeparator}|#{ArgumentSeparator})\s*((?:\w+\s*\:\s*)?#{QuotedFragment})/o).flatten
-          @filters << parse_filter_expressions(filtername, filterargs)
+      @filters ||= []
+      @filters.clear
+      if markup =~ /(#{QuotedFragment})(.*)/om
+        name_markup = $1
+        filter_markup = $2
+        @name = Expression.parse(name_markup)
+        if filter_markup =~ /#{FilterSeparator}\s*(.*)/om
+          filters = $1.scan(FilterParser)
+          filters.each do |f|
+            if f =~ /\w+/
+              filtername = Regexp.last_match(0)
+              filterargs = f.scan(/(?:#{FilterArgumentSeparator}|#{ArgumentSeparator})\s*((?:\w+\s*\:\s*)?#{QuotedFragment})/o).flatten
+              @filters << parse_filter_expressions(filtername, filterargs)
+            end
+          end
        end
      end
    end

    def strict_parse(markup)
-      @filters = []
+      @filters ||= []
+      @filters.clear
      p = Parser.new(markup)

      @name = Expression.parse(p.expression)
@@ -68,21 +70,17 @@ module Liquid
      # first argument
      filterargs = [p.argument]
      # followed by comma separated others
-      filterargs << p.argument while p.consume?(:comma)
+      while p.consume?(:comma)
+        filterargs << p.argument
+      end
      filterargs
    end

    def render(context)
-      obj = @filters.inject(context.evaluate(@name)) do |output, (filter_name, filter_args, filter_kwargs)|
+      @filters.inject(context.evaluate(@name)) do |output, (filter_name, filter_args, filter_kwargs)|
        filter_args = evaluate_filter_expressions(context, filter_args, filter_kwargs)
-        context.invoke(filter_name, output, *filter_args)
-      end
-
-      obj = context.apply_global_filter(obj)
-
-      taint_check(context, obj)
-
-      obj
+        output = context.invoke(filter_name, output, *filter_args)
+      end.tap{ |obj| taint_check(obj) }
    end

    private
@@ -114,22 +112,17 @@ module Liquid
      parsed_args
    end

-    def taint_check(context, obj)
-      return unless obj.tainted?
-      return if Template.taint_mode == :lax
-
-      @markup =~ QuotedFragment
-      name = Regexp.last_match(0)
-
-      error = TaintedError.new("variable '#{name}' is tainted and was not escaped")
-      error.line_number = line_number
-      error.template_name = context.template_name
-
-      case Template.taint_mode
-      when :warn
-        context.warnings << error
-      when :error
-        raise error
+    def taint_check(obj)
+      if obj.tainted?
+        @markup =~ QuotedFragment
+        name = Regexp.last_match(0)
+        case Template.taint_mode
+        when :warn
+          @warnings ||= []
+          @warnings << "variable '#{name}' is tainted and was not escaped"
+        when :error
+          raise TaintedError, "Error - variable '#{name}' is tainted and was not escaped"
+        end
      end
    end
  end
--- a/lib/liquid/variable_lookup.rb
+++ b/lib/liquid/variable_lookup.rb
@@ -10,21 +10,20 @@ module Liquid
    end

    def initialize(markup)
-      lookups = markup.scan(VariableParser)
+      @lookups = markup.scan(VariableParser)

-      name = lookups.shift
+      name = @lookups.shift
      if name =~ SQUARE_BRACKETED
        name = Expression.parse($1)
      end
      @name = name

-      @lookups = lookups
      @command_flags = 0

      @lookups.each_index do |i|
-        lookup = lookups[i]
+        lookup = @lookups[i]
        if lookup =~ SQUARE_BRACKETED
-          lookups[i] = Expression.parse($1)
+          @lookups[i] = Expression.parse($1)
        elsif COMMAND_METHODS.include?(lookup)
          @command_flags |= 1 << i
        end
@@ -41,8 +40,8 @@ module Liquid
        # If object is a hash- or array-like object we look for the
        # presence of the key and if its available we return it
        if object.respond_to?(:[]) &&
-            ((object.respond_to?(:key?) && object.key?(key)) ||
-             (object.respond_to?(:fetch) && key.is_a?(Integer)))
+          ((object.respond_to?(:has_key?) && object.has_key?(key)) ||
+           (object.respond_to?(:fetch) && key.is_a?(Integer)))

          # if its a proc we will replace the entry with the proc
          res = context.lookup_and_evaluate(object, key)
@@ -55,11 +54,9 @@ module Liquid
          object = object.send(key).to_liquid

          # No key was present with the desired value and it wasn't one of the directly supported
-          # keywords either. The only thing we got left is to return nil or
-          # raise an exception if `strict_variables` option is set to true
+          # keywords either. The only thing we got left is to return nil
        else
-          return nil unless context.strict_variables
-          raise Liquid::UndefinedVariable, "undefined variable #{key}"
+          return nil
        end

        # If we are dealing with a drop here we have to
@@ -70,7 +67,7 @@ module Liquid
    end

    def ==(other)
-      self.class == other.class && state == other.state
+      self.class == other.class && self.state == other.state
    end

    protected
--- a/lib/liquid/version.rb
+++ b/lib/liquid/version.rb
@@ -1,4 +1,4 @@
 # encoding: utf-8
 module Liquid
-  VERSION = "4.0.0"
+  VERSION = "4.0.0.alpha"
 end
--- a/liquid.gemspec
+++ b/liquid.gemspec
@@ -1,6 +1,6 @@
 # encoding: utf-8
 lib = File.expand_path('../lib/', __FILE__)
-$LOAD_PATH.unshift lib unless $LOAD_PATH.include?(lib)
+$:.unshift lib unless $:.include?(lib)

 require "liquid/version"

@@ -13,18 +13,17 @@ Gem::Specification.new do |s|
  s.email       = ["tobi@leetsoft.com"]
  s.homepage    = "http://www.liquidmarkup.org"
  s.license     = "MIT"
-  # s.description = "A secure, non-evaling end user template engine with aesthetic markup."
+  #s.description = "A secure, non-evaling end user template engine with aesthetic markup."

-  s.required_ruby_version     = ">= 2.1.0"
  s.required_rubygems_version = ">= 1.3.7"

  s.test_files  = Dir.glob("{test}/**/*")
-  s.files       = Dir.glob("{lib}/**/*") + %w(LICENSE README.md)
+  s.files       = Dir.glob("{lib}/**/*") + %w(MIT-LICENSE README.md)

-  s.extra_rdoc_files = ["History.md", "README.md"]
+  s.extra_rdoc_files  = ["History.md", "README.md"]

  s.require_path = "lib"

-  s.add_development_dependency 'rake', '~> 11.3'
+  s.add_development_dependency 'rake'
  s.add_development_dependency 'minitest'
 end
--- a/performance/benchmark.rb
+++ b/performance/benchmark.rb
@@ -1,5 +1,5 @@
 require 'benchmark/ips'
-require_relative 'theme_runner'
+require File.dirname(__FILE__) + '/theme_runner'

 Liquid::Template.error_mode = ARGV.first.to_sym if ARGV.first
 profiler = ThemeRunner.new
--- a/performance/memory.rb
+++ b/performance/memory.rb
@@ -0,0 +1,19 @@
+at_exit do
+  p 'Objects distribution:'
+  require 'pp'
+  pp ObjectSpace.count_objects
+end
+
+require 'allocation_tracer' rescue fail("install allocation_tracer extension/gem")
+require File.dirname(__FILE__) + '/theme_runner'
+
+Liquid::Template.error_mode = ARGV.first.to_sym if ARGV.first
+profiler = ThemeRunner.new
+
+require 'allocation_tracer/trace'
+
+puts "Profiling memory usage..."
+
+200.times do
+  profiler.run
+end
--- a/performance/profile.rb
+++ b/performance/profile.rb
@@ -1,12 +1,12 @@
-require 'stackprof'
-require_relative 'theme_runner'
+require 'stackprof' rescue fail("install stackprof extension/gem")
+require File.dirname(__FILE__) + '/theme_runner'

 Liquid::Template.error_mode = ARGV.first.to_sym if ARGV.first
 profiler = ThemeRunner.new
 profiler.run

 [:cpu, :object].each do |profile_type|
-  puts "Profiling in #{profile_type} mode..."
+  puts "Profiling in #{profile_type.to_s} mode..."
  results = StackProf.run(mode: profile_type) do
    200.times do
      profiler.run
--- a/performance/shopify/comment_form.rb
+++ b/performance/shopify/comment_form.rb
@@ -28,6 +28,6 @@ class CommentForm < Liquid::Block
  end

  def wrap_in_form(article, input)
-    %(<form id="article-#{article.id}-comment-form" class="comment-form" method="post" action="">\n#{input}\n</form>)
+    %Q{<form id="article-#{article.id}-comment-form" class="comment-form" method="post" action="">\n#{input}\n</form>}
  end
 end
--- a/performance/shopify/database.rb
+++ b/performance/shopify/database.rb
@@ -5,7 +5,7 @@ module Database
  # to liquid as assigns. All this is based on Shopify
  def self.tables
    @tables ||= begin
-      db = YAML.load_file("#{__dir__}/vision.database.yml")
+      db = YAML.load_file(File.dirname(__FILE__) + '/vision.database.yml')

      # From vision source
      db['products'].each do |product|
@@ -39,7 +39,7 @@ module Database
  end
 end

-if __FILE__ == $PROGRAM_NAME
+if __FILE__ == $0
  p Database.tables['collections']['frontpage'].keys
-  # p Database.tables['blog']['articles']
+  #p Database.tables['blog']['articles']
 end
--- a/performance/shopify/json_filter.rb
+++ b/performance/shopify/json_filter.rb
@@ -1,7 +1,9 @@
 require 'json'

 module JsonFilter
+
  def json(object)
-    JSON.dump(object.reject { |k, v| k == "collections" })
+    JSON.dump(object.reject {|k,v| k == "collections" })
  end
+
 end
--- a/performance/shopify/liquid.rb
+++ b/performance/shopify/liquid.rb
@@ -1,13 +1,13 @@
-$:.unshift __dir__ + '/../../lib'
-require_relative '../../lib/liquid'
+$:.unshift File.dirname(__FILE__) + '/../../lib'
+require File.dirname(__FILE__) + '/../../lib/liquid'

-require_relative 'comment_form'
-require_relative 'paginate'
-require_relative 'json_filter'
-require_relative 'money_filter'
-require_relative 'shop_filter'
-require_relative 'tag_filter'
-require_relative 'weight_filter'
+require File.dirname(__FILE__) + '/comment_form'
+require File.dirname(__FILE__) + '/paginate'
+require File.dirname(__FILE__) + '/json_filter'
+require File.dirname(__FILE__) + '/money_filter'
+require File.dirname(__FILE__) + '/shop_filter'
+require File.dirname(__FILE__) + '/tag_filter'
+require File.dirname(__FILE__) + '/weight_filter'

 Liquid::Template.register_tag 'paginate', Paginate
 Liquid::Template.register_tag 'form', CommentForm
--- a/performance/shopify/money_filter.rb
+++ b/performance/shopify/money_filter.rb
@@ -1,12 +1,13 @@
 module MoneyFilter
+
  def money_with_currency(money)
    return '' if money.nil?
-    sprintf("$ %.2f USD", money / 100.0)
+    sprintf("$ %.2f USD", money/100.0)
  end

  def money(money)
    return '' if money.nil?
-    sprintf("$ %.2f", money / 100.0)
+    sprintf("$ %.2f", money/100.0)
  end

  private
--- a/performance/shopify/paginate.rb
+++ b/performance/shopify/paginate.rb
@@ -42,22 +42,23 @@ class Paginate < Liquid::Block
      page_count = (collection_size.to_f / @page_size.to_f).to_f.ceil + 1

      pagination['items']      = collection_size
-      pagination['pages']      = page_count - 1
-      pagination['previous']   = link('&laquo; Previous', current_page - 1)  unless 1 >= current_page
-      pagination['next']       = link('Next &raquo;', current_page + 1)      unless page_count <= current_page + 1
+      pagination['pages']      = page_count -1
+      pagination['previous']   = link('&laquo; Previous', current_page-1 )  unless 1 >= current_page
+      pagination['next']       = link('Next &raquo;', current_page+1 )      unless page_count <= current_page+1
      pagination['parts']      = []

      hellip_break = false

      if page_count > 2
-        1.upto(page_count - 1) do |page|
+        1.upto(page_count-1) do |page|
+
          if current_page == page
            pagination['parts'] << no_link(page)
          elsif page == 1
            pagination['parts'] << link(page, page)
-          elsif page == page_count - 1
+          elsif page == page_count -1
            pagination['parts'] << link(page, page)
-          elsif page <= current_page - @attributes['window_size'] || page >= current_page + @attributes['window_size']
+          elsif page <= current_page - @attributes['window_size'] or page >= current_page + @attributes['window_size']
            next if hellip_break
            pagination['parts'] << no_link('&hellip;')
            hellip_break = true
@@ -77,11 +78,11 @@ class Paginate < Liquid::Block
  private

  def no_link(title)
-    { 'title' => title, 'is_link' => false }
+    { 'title' => title, 'is_link' => false}
  end

  def link(title, page)
-    { 'title' => title, 'url' => current_url + "?page=#{page}", 'is_link' => true }
+    { 'title' => title, 'url' => current_url + "?page=#{page}", 'is_link' => true}
  end

  def current_url
--- a/performance/shopify/shop_filter.rb
+++ b/performance/shopify/shop_filter.rb
@@ -1,4 +1,5 @@
 module ShopFilter
+
  def asset_url(input)
    "/files/1/[shop_id]/[shop_id]/assets/#{input}"
  end
@@ -15,16 +16,16 @@ module ShopFilter
    %(<script src="#{url}" type="text/javascript"></script>)
  end

-  def stylesheet_tag(url, media = "all")
+  def stylesheet_tag(url, media="all")
    %(<link href="#{url}" rel="stylesheet" type="text/css"  media="#{media}"  />)
  end

-  def link_to(link, url, title = "")
-    %(<a href="#{url}" title="#{title}">#{link}</a>)
+  def link_to(link, url, title="")
+    %|<a href="#{url}" title="#{title}">#{link}</a>|
  end

-  def img_tag(url, alt = "")
-    %(<img src="#{url}" alt="#{alt}" />)
+  def img_tag(url, alt="")
+    %|<img src="#{url}" alt="#{alt}" />|
  end

  def link_to_vendor(vendor)
@@ -52,6 +53,7 @@ module ShopFilter
  end

  def product_img_url(url, style = 'small')
+
    unless url =~ /\Aproducts\/([\w\-\_]+)\.(\w{2,4})/
      raise ArgumentError, 'filter "size" can only be called on product images'
    end
@@ -67,6 +69,7 @@ module ShopFilter
  end

  def default_pagination(paginate)
+
    html = []
    html << %(<span class="prev">#{link_to(paginate['previous']['title'], paginate['previous']['url'])}</span>) if paginate['previous']

@@ -103,4 +106,5 @@ module ShopFilter
    result.gsub!(/\A-+/, '') if result[0] == '-'
    result
  end
+
 end
--- a/performance/shopify/tag_filter.rb
+++ b/performance/shopify/tag_filter.rb
@@ -1,9 +1,10 @@
 module TagFilter
+
  def link_to_tag(label, tag)
    "<a title=\"Show tag #{tag}\" href=\"/collections/#{@context['handle']}/#{tag}\">#{label}</a>"
  end

-  def highlight_active_tag(tag, css_class = 'active')
+  def highlight_active_tag(tag, css_class='active')
    if @context['current_tags'].include?(tag)
      "<span class=\"#{css_class}\">#{tag}</span>"
    else
@@ -20,4 +21,5 @@ module TagFilter
    tags = (@context['current_tags'] - [tag]).uniq
    "<a title=\"Show tag #{tag}\" href=\"/collections/#{@context['handle']}/#{tags.join("+")}\">#{label}</a>"
  end
+
 end
--- a/performance/shopify/weight_filter.rb
+++ b/performance/shopify/weight_filter.rb
@@ -1,4 +1,5 @@
 module WeightFilter
+
  def weight(grams)
    sprintf("%.2f", grams / 1000)
  end
@@ -6,4 +7,5 @@ module WeightFilter
  def weight_with_unit(grams)
    "#{weight(grams)} kg"
  end
+
 end
--- a/performance/theme_runner.rb
+++ b/performance/theme_runner.rb
@@ -6,11 +6,12 @@
 # Shopify which is likely the biggest user of liquid in the world which something to the tune of several
 # million Template#render calls a day.

-require_relative 'shopify/liquid'
-require_relative 'shopify/database'
+require File.dirname(__FILE__) + '/shopify/liquid'
+require File.dirname(__FILE__) + '/shopify/database.rb'

 class ThemeRunner
  class FileSystem
+
    def initialize(path)
      @path = path
    end
@@ -24,7 +25,7 @@ class ThemeRunner
  # Load all templates into memory, do this now so that
  # we don't profile IO.
  def initialize
-    @tests = Dir[__dir__ + '/tests/**/*.liquid'].collect do |test|
+    @tests = Dir[File.dirname(__FILE__) + '/tests/**/*.liquid'].collect do |test|
      next if File.basename(test) == 'theme.liquid'

      theme_path = File.dirname(test) + '/theme.liquid'
@@ -37,6 +38,7 @@ class ThemeRunner
    # Dup assigns because will make some changes to them

    @tests.each do |liquid, layout, template_name|
+
      tmpl = Liquid::Template.new
      tmpl.parse(liquid)
      tmpl = Liquid::Template.new
@@ -44,17 +46,20 @@ class ThemeRunner
    end
  end

-  def run
+   def run
    # Dup assigns because will make some changes to them
    assigns = Database.tables.dup

    @tests.each do |liquid, layout, template_name|
+
      # Compute page_tempalte outside of profiler run, uninteresting to profiler
      page_template = File.basename(template_name, File.extname(template_name))
      compile_and_render(liquid, layout, assigns, page_template, template_name)
+
    end
  end

+
  def compile_and_render(template, layout, assigns, page_template, template_file)
    tmpl = Liquid::Template.new
    tmpl.assigns['page_title'] = 'Page title'
--- a/test/integration/assign_test.rb
+++ b/test/integration/assign_test.rb
@@ -15,24 +15,24 @@ class AssignTest < Minitest::Test

  def test_assigned_variable
    assert_template_result('.foo.',
-      '{% assign foo = values %}.{{ foo[0] }}.',
-      'values' => %w(foo bar baz))
+                           '{% assign foo = values %}.{{ foo[0] }}.',
+                           'values' => %w{foo bar baz})

    assert_template_result('.bar.',
-      '{% assign foo = values %}.{{ foo[1] }}.',
-      'values' => %w(foo bar baz))
+                           '{% assign foo = values %}.{{ foo[1] }}.',
+                           'values' => %w{foo bar baz})
  end

  def test_assign_with_filter
    assert_template_result('.bar.',
-      '{% assign foo = values | split: "," %}.{{ foo[1] }}.',
-      'values' => "foo,bar,baz")
+                           '{% assign foo = values | split: "," %}.{{ foo[1] }}.',
+                           'values' => "foo,bar,baz")
  end

  def test_assign_syntax_error
    assert_match_syntax_error(/assign/,
-      '{% assign foo not values %}.',
-      'values' => "foo,bar,baz")
+                       '{% assign foo not values %}.',
+                       'values' => "foo,bar,baz")
  end

  def test_assign_uses_error_mode
--- a/test/integration/blank_test.rb
+++ b/test/integration/blank_test.rb
@@ -31,7 +31,7 @@ class BlankTest < Minitest::Test
  end

  def test_new_tags_are_not_blank_by_default
-    assert_template_result(" " * N, wrap_in_for("{% foobar %}"))
+    assert_template_result(" "*N, wrap_in_for("{% foobar %}"))
  end

  def test_loops_are_blank
@@ -47,7 +47,7 @@ class BlankTest < Minitest::Test
  end

  def test_mark_as_blank_only_during_parsing
-    assert_template_result(" " * (N + 1), wrap(" {% if false %} this never happens, but still, this block is not blank {% endif %}"))
+    assert_template_result(" "*(N+1), wrap(" {% if false %} this never happens, but still, this block is not blank {% endif %}"))
  end

  def test_comments_are_blank
@@ -60,9 +60,9 @@ class BlankTest < Minitest::Test

  def test_nested_blocks_are_blank_but_only_if_all_children_are
    assert_template_result("", wrap(wrap(" ")))
-    assert_template_result("\n       but this is not " * (N + 1),
-      wrap('{% if true %} {% comment %} this is blank {% endcomment %} {% endif %}
-      {% if true %} but this is not {% endif %}'))
+    assert_template_result("\n       but this is not "*(N+1),
+      wrap(%q{{% if true %} {% comment %} this is blank {% endcomment %} {% endif %}
+      {% if true %} but this is not {% endif %}}))
  end

  def test_assigns_are_blank
@@ -76,31 +76,31 @@ class BlankTest < Minitest::Test

  def test_whitespace_is_not_blank_if_other_stuff_is_present
    body = "     x "
-    assert_template_result(body * (N + 1), wrap(body))
+    assert_template_result(body*(N+1), wrap(body))
  end

  def test_increment_is_not_blank
-    assert_template_result(" 0" * 2 * (N + 1), wrap("{% assign foo = 0 %} {% increment foo %} {% decrement foo %}"))
+    assert_template_result(" 0"*2*(N+1), wrap("{% assign foo = 0 %} {% increment foo %} {% decrement foo %}"))
  end

  def test_cycle_is_not_blank
-    assert_template_result("  " * ((N + 1) / 2) + " ", wrap("{% cycle ' ', ' ' %}"))
+    assert_template_result("  "*((N+1)/2)+" ", wrap("{% cycle ' ', ' ' %}"))
  end

  def test_raw_is_not_blank
-    assert_template_result("  " * (N + 1), wrap(" {% raw %} {% endraw %}"))
+    assert_template_result("  "*(N+1), wrap(" {% raw %} {% endraw %}"))
  end

  def test_include_is_blank
    Liquid::Template.file_system = BlankTestFileSystem.new
-    assert_template_result "foobar" * (N + 1), wrap("{% include 'foobar' %}")
-    assert_template_result " foobar " * (N + 1), wrap("{% include ' foobar ' %}")
-    assert_template_result "   " * (N + 1), wrap(" {% include ' ' %} ")
+    assert_template_result "foobar"*(N+1), wrap("{% include 'foobar' %}")
+    assert_template_result " foobar "*(N+1), wrap("{% include ' foobar ' %}")
+    assert_template_result "   "*(N+1), wrap(" {% include ' ' %} ")
  end

  def test_case_is_blank
    assert_template_result("", wrap(" {% assign foo = 'bar' %} {% case foo %} {% when 'bar' %} {% when 'whatever' %} {% else %} {% endcase %} "))
    assert_template_result("", wrap(" {% assign foo = 'else' %} {% case foo %} {% when 'bar' %} {% when 'whatever' %} {% else %} {% endcase %} "))
-    assert_template_result("   x  " * (N + 1), wrap(" {% assign foo = 'else' %} {% case foo %} {% when 'bar' %} {% when 'whatever' %} {% else %} x {% endcase %} "))
+    assert_template_result("   x  "*(N+1), wrap(" {% assign foo = 'else' %} {% case foo %} {% when 'bar' %} {% when 'whatever' %} {% else %} x {% endcase %} "))
  end
 end
--- a/test/integration/context_test.rb
+++ b/test/integration/context_test.rb
@@ -18,14 +18,14 @@ class ContextTest < Minitest::Test

    with_global_filter(global) do
      assert_equal 'Global test', Template.parse("{{'test' | notice }}").render!
-      assert_equal 'Local test', Template.parse("{{'test' | notice }}").render!({}, filters: [local])
+      assert_equal 'Local test', Template.parse("{{'test' | notice }}").render!({}, :filters => [local])
    end
  end

  def test_has_key_will_not_add_an_error_for_missing_keys
    with_error_mode :strict do
      context = Context.new
-      context.key?('unknown')
+      context.has_key?('unknown')
      assert_empty context.errors
    end
  end
--- a/test/integration/drop_test.rb
+++ b/test/integration/drop_test.rb
@@ -13,12 +13,13 @@ class ContextDrop < Liquid::Drop
    @context['forloop.index']
  end

-  def liquid_method_missing(method)
-    @context[method]
+  def before_method(method)
+    return @context[method]
  end
 end

 class ProductDrop < Liquid::Drop
+
  class TextDrop < Liquid::Drop
    def array
      ['text1', 'text2']
@@ -30,8 +31,8 @@ class ProductDrop < Liquid::Drop
  end

  class CatchallDrop < Liquid::Drop
-    def liquid_method_missing(method)
-      'catchall_method: ' << method.to_s
+    def before_method(method)
+      return 'method: ' << method.to_s
    end
  end

@@ -52,14 +53,13 @@ class ProductDrop < Liquid::Drop
  end

  protected
-
-  def callmenot
-    "protected"
-  end
+    def callmenot
+      "protected"
+    end
 end

 class EnumerableDrop < Liquid::Drop
-  def liquid_method_missing(method)
+  def before_method(method)
    method
  end

@@ -93,7 +93,7 @@ end
 class RealEnumerableDrop < Liquid::Drop
  include Enumerable

-  def liquid_method_missing(method)
+  def before_method(method)
    method
  end

@@ -124,10 +124,8 @@ class DropsTest < Minitest::Test
  def test_rendering_warns_on_tainted_attr
    with_taint_mode(:warn) do
      tpl = Liquid::Template.parse('{{ product.user_input }}')
-      context = Context.new('product' => ProductDrop.new)
-      tpl.render!(context)
-      assert_equal [Liquid::TaintedError], context.warnings.map(&:class)
-      assert_equal "variable 'product.user_input' is tainted and was not escaped", context.warnings.first.to_s(false)
+      tpl.render!('product' => ProductDrop.new)
+      assert_match /tainted/, tpl.warnings.first
    end
  end

@@ -153,37 +151,37 @@ class DropsTest < Minitest::Test
  end

  def test_text_drop
-    output = Liquid::Template.parse(' {{ product.texts.text }} ').render!('product' => ProductDrop.new)
+    output = Liquid::Template.parse( ' {{ product.texts.text }} '  ).render!('product' => ProductDrop.new)
    assert_equal ' text1 ', output
  end

-  def test_catchall_unknown_method
-    output = Liquid::Template.parse(' {{ product.catchall.unknown }} ').render!('product' => ProductDrop.new)
-    assert_equal ' catchall_method: unknown ', output
+  def test_unknown_method
+    output = Liquid::Template.parse( ' {{ product.catchall.unknown }} '  ).render!('product' => ProductDrop.new)
+    assert_equal ' method: unknown ', output
  end

-  def test_catchall_integer_argument_drop
-    output = Liquid::Template.parse(' {{ product.catchall[8] }} ').render!('product' => ProductDrop.new)
-    assert_equal ' catchall_method: 8 ', output
+  def test_integer_argument_drop
+    output = Liquid::Template.parse( ' {{ product.catchall[8] }} '  ).render!('product' => ProductDrop.new)
+    assert_equal ' method: 8 ', output
  end

  def test_text_array_drop
-    output = Liquid::Template.parse('{% for text in product.texts.array %} {{text}} {% endfor %}').render!('product' => ProductDrop.new)
+    output = Liquid::Template.parse( '{% for text in product.texts.array %} {{text}} {% endfor %}'  ).render!('product' => ProductDrop.new)
    assert_equal ' text1  text2 ', output
  end

  def test_context_drop
-    output = Liquid::Template.parse(' {{ context.bar }} ').render!('context' => ContextDrop.new, 'bar' => "carrot")
+    output = Liquid::Template.parse( ' {{ context.bar }} '  ).render!('context' => ContextDrop.new, 'bar' => "carrot")
    assert_equal ' carrot ', output
  end

  def test_nested_context_drop
-    output = Liquid::Template.parse(' {{ product.context.foo }} ').render!('product' => ProductDrop.new, 'foo' => "monkey")
+    output = Liquid::Template.parse( ' {{ product.context.foo }} '  ).render!('product' => ProductDrop.new, 'foo' => "monkey")
    assert_equal ' monkey ', output
  end

  def test_protected
-    output = Liquid::Template.parse(' {{ product.callmenot }} ').render!('product' => ProductDrop.new)
+    output = Liquid::Template.parse( ' {{ product.callmenot }} '  ).render!('product' => ProductDrop.new)
    assert_equal '  ', output
  end

@@ -195,43 +193,43 @@ class DropsTest < Minitest::Test
  end

  def test_scope
-    assert_equal '1', Liquid::Template.parse('{{ context.scopes }}').render!('context' => ContextDrop.new)
-    assert_equal '2', Liquid::Template.parse('{%for i in dummy%}{{ context.scopes }}{%endfor%}').render!('context' => ContextDrop.new, 'dummy' => [1])
-    assert_equal '3', Liquid::Template.parse('{%for i in dummy%}{%for i in dummy%}{{ context.scopes }}{%endfor%}{%endfor%}').render!('context' => ContextDrop.new, 'dummy' => [1])
+    assert_equal '1', Liquid::Template.parse( '{{ context.scopes }}'  ).render!('context' => ContextDrop.new)
+    assert_equal '2', Liquid::Template.parse( '{%for i in dummy%}{{ context.scopes }}{%endfor%}'  ).render!('context' => ContextDrop.new, 'dummy' => [1])
+    assert_equal '3', Liquid::Template.parse( '{%for i in dummy%}{%for i in dummy%}{{ context.scopes }}{%endfor%}{%endfor%}'  ).render!('context' => ContextDrop.new, 'dummy' => [1])
  end

  def test_scope_though_proc
-    assert_equal '1', Liquid::Template.parse('{{ s }}').render!('context' => ContextDrop.new, 's' => proc{ |c| c['context.scopes'] })
-    assert_equal '2', Liquid::Template.parse('{%for i in dummy%}{{ s }}{%endfor%}').render!('context' => ContextDrop.new, 's' => proc{ |c| c['context.scopes'] }, 'dummy' => [1])
-    assert_equal '3', Liquid::Template.parse('{%for i in dummy%}{%for i in dummy%}{{ s }}{%endfor%}{%endfor%}').render!('context' => ContextDrop.new, 's' => proc{ |c| c['context.scopes'] }, 'dummy' => [1])
+    assert_equal '1', Liquid::Template.parse( '{{ s }}'  ).render!('context' => ContextDrop.new, 's' => Proc.new{|c| c['context.scopes'] })
+    assert_equal '2', Liquid::Template.parse( '{%for i in dummy%}{{ s }}{%endfor%}'  ).render!('context' => ContextDrop.new, 's' => Proc.new{|c| c['context.scopes'] }, 'dummy' => [1])
+    assert_equal '3', Liquid::Template.parse( '{%for i in dummy%}{%for i in dummy%}{{ s }}{%endfor%}{%endfor%}'  ).render!('context' => ContextDrop.new, 's' => Proc.new{|c| c['context.scopes'] }, 'dummy' => [1])
  end

  def test_scope_with_assigns
-    assert_equal 'variable', Liquid::Template.parse('{% assign a = "variable"%}{{a}}').render!('context' => ContextDrop.new)
-    assert_equal 'variable', Liquid::Template.parse('{% assign a = "variable"%}{%for i in dummy%}{{a}}{%endfor%}').render!('context' => ContextDrop.new, 'dummy' => [1])
-    assert_equal 'test', Liquid::Template.parse('{% assign header_gif = "test"%}{{header_gif}}').render!('context' => ContextDrop.new)
-    assert_equal 'test', Liquid::Template.parse("{% assign header_gif = 'test'%}{{header_gif}}").render!('context' => ContextDrop.new)
+    assert_equal 'variable', Liquid::Template.parse( '{% assign a = "variable"%}{{a}}'  ).render!('context' => ContextDrop.new)
+    assert_equal 'variable', Liquid::Template.parse( '{% assign a = "variable"%}{%for i in dummy%}{{a}}{%endfor%}'  ).render!('context' => ContextDrop.new, 'dummy' => [1])
+    assert_equal 'test', Liquid::Template.parse( '{% assign header_gif = "test"%}{{header_gif}}'  ).render!('context' => ContextDrop.new)
+    assert_equal 'test', Liquid::Template.parse( "{% assign header_gif = 'test'%}{{header_gif}}"  ).render!('context' => ContextDrop.new)
  end

  def test_scope_from_tags
-    assert_equal '1', Liquid::Template.parse('{% for i in context.scopes_as_array %}{{i}}{% endfor %}').render!('context' => ContextDrop.new, 'dummy' => [1])
-    assert_equal '12', Liquid::Template.parse('{%for a in dummy%}{% for i in context.scopes_as_array %}{{i}}{% endfor %}{% endfor %}').render!('context' => ContextDrop.new, 'dummy' => [1])
-    assert_equal '123', Liquid::Template.parse('{%for a in dummy%}{%for a in dummy%}{% for i in context.scopes_as_array %}{{i}}{% endfor %}{% endfor %}{% endfor %}').render!('context' => ContextDrop.new, 'dummy' => [1])
+    assert_equal '1', Liquid::Template.parse( '{% for i in context.scopes_as_array %}{{i}}{% endfor %}'  ).render!('context' => ContextDrop.new, 'dummy' => [1])
+    assert_equal '12', Liquid::Template.parse( '{%for a in dummy%}{% for i in context.scopes_as_array %}{{i}}{% endfor %}{% endfor %}'  ).render!('context' => ContextDrop.new, 'dummy' => [1])
+    assert_equal '123', Liquid::Template.parse( '{%for a in dummy%}{%for a in dummy%}{% for i in context.scopes_as_array %}{{i}}{% endfor %}{% endfor %}{% endfor %}'  ).render!('context' => ContextDrop.new, 'dummy' => [1])
  end

  def test_access_context_from_drop
-    assert_equal '123', Liquid::Template.parse('{%for a in dummy%}{{ context.loop_pos }}{% endfor %}').render!('context' => ContextDrop.new, 'dummy' => [1, 2, 3])
+    assert_equal '123', Liquid::Template.parse( '{%for a in dummy%}{{ context.loop_pos }}{% endfor %}'  ).render!('context' => ContextDrop.new, 'dummy' => [1,2,3])
  end

  def test_enumerable_drop
-    assert_equal '123', Liquid::Template.parse('{% for c in collection %}{{c}}{% endfor %}').render!('collection' => EnumerableDrop.new)
+    assert_equal '123', Liquid::Template.parse( '{% for c in collection %}{{c}}{% endfor %}').render!('collection' => EnumerableDrop.new)
  end

  def test_enumerable_drop_size
-    assert_equal '3', Liquid::Template.parse('{{collection.size}}').render!('collection' => EnumerableDrop.new)
+    assert_equal '3', Liquid::Template.parse( '{{collection.size}}').render!('collection' => EnumerableDrop.new)
  end

-  def test_enumerable_drop_will_invoke_liquid_method_missing_for_clashing_method_names
+  def test_enumerable_drop_will_invoke_before_method_for_clashing_method_names
    ["select", "each", "map", "cycle"].each do |method|
      assert_equal method.to_s, Liquid::Template.parse("{{collection.#{method}}}").render!('collection' => EnumerableDrop.new)
      assert_equal method.to_s, Liquid::Template.parse("{{collection[\"#{method}\"]}}").render!('collection' => EnumerableDrop.new)
--- a/test/integration/error_handling_test.rb
+++ b/test/integration/error_handling_test.rb
@@ -1,5 +1,24 @@
 require 'test_helper'

+class ErrorDrop < Liquid::Drop
+  def standard_error
+    raise Liquid::StandardError, 'standard error'
+  end
+
+  def argument_error
+    raise Liquid::ArgumentError, 'argument error'
+  end
+
+  def syntax_error
+    raise Liquid::SyntaxError, 'syntax error'
+  end
+
+  def exception
+    raise Exception, 'exception'
+  end
+
+end
+
 class ErrorHandlingTest < Minitest::Test
  include Liquid

@@ -37,7 +56,7 @@ class ErrorHandlingTest < Minitest::Test
  end

  def test_standard_error
-    template = Liquid::Template.parse(' {{ errors.standard_error }} ')
+    template = Liquid::Template.parse( ' {{ errors.standard_error }} '  )
    assert_equal ' Liquid error: standard error ', template.render('errors' => ErrorDrop.new)

    assert_equal 1, template.errors.size
@@ -45,7 +64,7 @@ class ErrorHandlingTest < Minitest::Test
  end

  def test_syntax
-    template = Liquid::Template.parse(' {{ errors.syntax_error }} ')
+    template = Liquid::Template.parse( ' {{ errors.syntax_error }} '  )
    assert_equal ' Liquid syntax error: syntax error ', template.render('errors' => ErrorDrop.new)

    assert_equal 1, template.errors.size
@@ -53,7 +72,7 @@ class ErrorHandlingTest < Minitest::Test
  end

  def test_argument
-    template = Liquid::Template.parse(' {{ errors.argument_error }} ')
+    template = Liquid::Template.parse( ' {{ errors.argument_error }} '  )
    assert_equal ' Liquid error: argument error ', template.render('errors' => ErrorDrop.new)

    assert_equal 1, template.errors.size
@@ -75,7 +94,7 @@ class ErrorHandlingTest < Minitest::Test
  end

  def test_lax_unrecognized_operator
-    template = Liquid::Template.parse(' {% if 1 =! 2 %}ok{% endif %} ', error_mode: :lax)
+    template = Liquid::Template.parse(' {% if 1 =! 2 %}ok{% endif %} ', :error_mode => :lax)
    assert_equal ' Liquid error: Unknown operator =! ', template.render
    assert_equal 1, template.errors.size
    assert_equal Liquid::ArgumentError, template.errors.first.class
@@ -83,47 +102,31 @@ class ErrorHandlingTest < Minitest::Test

  def test_with_line_numbers_adds_numbers_to_parser_errors
    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse(%q(
+      template = Liquid::Template.parse(%q{
          foobar

          {% "cat" | foobar %}

          bla
-        ),
-        line_numbers: true
+        },
+        :line_numbers => true
      )
    end

-    assert_match(/Liquid syntax error \(line 4\)/, err.message)
-  end
-
-  def test_with_line_numbers_adds_numbers_to_parser_errors_with_whitespace_trim
-    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse(%q(
-          foobar
-
-          {%- "cat" | foobar -%}
-
-          bla
-        ),
-        line_numbers: true
-      )
-    end
-
-    assert_match(/Liquid syntax error \(line 4\)/, err.message)
+    assert_match /Liquid syntax error \(line 4\)/, err.message
  end

  def test_parsing_warn_with_line_numbers_adds_numbers_to_lexer_errors
-    template = Liquid::Template.parse('
+    template = Liquid::Template.parse(%q{
        foobar

        {% if 1 =! 2 %}ok{% endif %}

        bla
-            ',
-      error_mode: :warn,
-      line_numbers: true
-                                     )
+      },
+      :error_mode => :warn,
+      :line_numbers => true
+    )

    assert_equal ['Liquid syntax error (line 4): Unexpected character = in "1 =! 2"'],
      template.warnings.map(&:message)
@@ -131,16 +134,16 @@ class ErrorHandlingTest < Minitest::Test

  def test_parsing_strict_with_line_numbers_adds_numbers_to_lexer_errors
    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse('
+      Liquid::Template.parse(%q{
          foobar

          {% if 1 =! 2 %}ok{% endif %}

          bla
-                ',
-        error_mode: :strict,
-        line_numbers: true
-                            )
+        },
+        :error_mode => :strict,
+        :line_numbers => true
+      )
    end

    assert_equal 'Liquid syntax error (line 4): Unexpected character = in "1 =! 2"', err.message
@@ -148,7 +151,7 @@ class ErrorHandlingTest < Minitest::Test

  def test_syntax_errors_in_nested_blocks_have_correct_line_number
    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse('
+      Liquid::Template.parse(%q{
          foobar

          {% if 1 != 2 %}
@@ -156,9 +159,9 @@ class ErrorHandlingTest < Minitest::Test
          {% endif %}

          bla
-                ',
-        line_numbers: true
-                            )
+        },
+        :line_numbers => true
+      )
    end

    assert_equal "Liquid syntax error (line 5): Unknown tag 'foo'", err.message
@@ -166,18 +169,18 @@ class ErrorHandlingTest < Minitest::Test

  def test_strict_error_messages
    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse(' {% if 1 =! 2 %}ok{% endif %} ', error_mode: :strict)
+      Liquid::Template.parse(' {% if 1 =! 2 %}ok{% endif %} ', :error_mode => :strict)
    end
    assert_equal 'Liquid syntax error: Unexpected character = in "1 =! 2"', err.message

    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse('{{%%%}}', error_mode: :strict)
+      Liquid::Template.parse('{{%%%}}', :error_mode => :strict)
    end
    assert_equal 'Liquid syntax error: Unexpected character % in "{{%%%}}"', err.message
  end

  def test_warnings
-    template = Liquid::Template.parse('{% if ~~~ %}{{%%%}}{% else %}{{ hello. }}{% endif %}', error_mode: :warn)
+    template = Liquid::Template.parse('{% if ~~~ %}{{%%%}}{% else %}{{ hello. }}{% endif %}', :error_mode => :warn)
    assert_equal 3, template.warnings.size
    assert_equal 'Unexpected character ~ in "~~~"', template.warnings[0].to_s(false)
    assert_equal 'Unexpected character % in "{{%%%}}"', template.warnings[1].to_s(false)
@@ -186,12 +189,12 @@ class ErrorHandlingTest < Minitest::Test
  end

  def test_warning_line_numbers
-    template = Liquid::Template.parse("{% if ~~~ %}\n{{%%%}}{% else %}\n{{ hello. }}{% endif %}", error_mode: :warn, line_numbers: true)
+    template = Liquid::Template.parse("{% if ~~~ %}\n{{%%%}}{% else %}\n{{ hello. }}{% endif %}", :error_mode => :warn, :line_numbers => true)
    assert_equal 'Liquid syntax error (line 1): Unexpected character ~ in "~~~"', template.warnings[0].message
    assert_equal 'Liquid syntax error (line 2): Unexpected character % in "{{%%%}}"', template.warnings[1].message
    assert_equal 'Liquid syntax error (line 3): Expected id but found end_of_string in "{{ hello. }}"', template.warnings[2].message
    assert_equal 3, template.warnings.size
-    assert_equal [1, 2, 3], template.warnings.map(&:line_number)
+    assert_equal [1,2,3], template.warnings.map(&:line_number)
  end

  # Liquid should not catch Exceptions that are not subclasses of StandardError, like Interrupt and NoMemoryError
@@ -201,60 +204,4 @@ class ErrorHandlingTest < Minitest::Test
      template.render('errors' => ErrorDrop.new)
    end
  end
-
-  def test_default_exception_renderer_with_internal_error
-    template = Liquid::Template.parse('This is a runtime error: {{ errors.runtime_error }}', line_numbers: true)
-
-    output = template.render({ 'errors' => ErrorDrop.new })
-
-    assert_equal 'This is a runtime error: Liquid error (line 1): internal', output
-    assert_equal [Liquid::InternalError], template.errors.map(&:class)
-  end
-
-  def test_setting_default_exception_renderer
-    old_exception_renderer = Liquid::Template.default_exception_renderer
-    exceptions = []
-    Liquid::Template.default_exception_renderer = ->(e) { exceptions << e; '' }
-    template = Liquid::Template.parse('This is a runtime error: {{ errors.argument_error }}')
-
-    output = template.render({ 'errors' => ErrorDrop.new })
-
-    assert_equal 'This is a runtime error: ', output
-    assert_equal [Liquid::ArgumentError], template.errors.map(&:class)
-  ensure
-    Liquid::Template.default_exception_renderer = old_exception_renderer if old_exception_renderer
-  end
-
-  def test_exception_renderer_exposing_non_liquid_error
-    template = Liquid::Template.parse('This is a runtime error: {{ errors.runtime_error }}', line_numbers: true)
-    exceptions = []
-    handler = ->(e) { exceptions << e; e.cause }
-
-    output = template.render({ 'errors' => ErrorDrop.new }, exception_renderer: handler)
-
-    assert_equal 'This is a runtime error: runtime error', output
-    assert_equal [Liquid::InternalError], exceptions.map(&:class)
-    assert_equal exceptions, template.errors
-    assert_equal '#<RuntimeError: runtime error>', exceptions.first.cause.inspect
-  end
-
-  class TestFileSystem
-    def read_template_file(template_path)
-      "{{ errors.argument_error }}"
-    end
-  end
-
-  def test_included_template_name_with_line_numbers
-    old_file_system = Liquid::Template.file_system
-
-    begin
-      Liquid::Template.file_system = TestFileSystem.new
-      template = Liquid::Template.parse("Argument error:\n{% include 'product' %}", line_numbers: true)
-      page = template.render('errors' => ErrorDrop.new)
-    ensure
-      Liquid::Template.file_system = old_file_system
-    end
-    assert_equal "Argument error:\nLiquid error (product line 1): argument error", page
-    assert_equal "product", template.errors.first.template_name
-  end
 end
--- a/test/integration/filter_test.rb
+++ b/test/integration/filter_test.rb
@@ -17,7 +17,7 @@ module CanadianMoneyFilter
 end

 module SubstituteFilter
-  def substitute(input, params = {})
+  def substitute(input, params={})
    input.gsub(/%\{(\w+)\}/) { |match| params[$1] }
  end
 end
@@ -39,13 +39,13 @@ class FiltersTest < Minitest::Test
    @context['var'] = 1000
    @context.add_filters(MoneyFilter)

-    assert_equal ' 1000$ ', Template.parse("{{var | money}}").render(@context)
+    assert_equal ' 1000$ ', Variable.new("var | money").render(@context)
  end

  def test_underscore_in_filter_name
    @context['var'] = 1000
    @context.add_filters(MoneyFilter)
-    assert_equal ' 1000$ ', Template.parse("{{var | money_with_underscore}}").render(@context)
+    assert_equal ' 1000$ ', Variable.new("var | money_with_underscore").render(@context)
  end

  def test_second_filter_overwrites_first
@@ -53,100 +53,67 @@ class FiltersTest < Minitest::Test
    @context.add_filters(MoneyFilter)
    @context.add_filters(CanadianMoneyFilter)

-    assert_equal ' 1000$ CAD ', Template.parse("{{var | money}}").render(@context)
+    assert_equal ' 1000$ CAD ', Variable.new("var | money").render(@context)
  end

  def test_size
    @context['var'] = 'abcd'
    @context.add_filters(MoneyFilter)

-    assert_equal '4', Template.parse("{{var | size}}").render(@context)
+    assert_equal 4, Variable.new("var | size").render(@context)
  end

  def test_join
-    @context['var'] = [1, 2, 3, 4]
+    @context['var'] = [1,2,3,4]

-    assert_equal "1 2 3 4", Template.parse("{{var | join}}").render(@context)
+    assert_equal "1 2 3 4", Variable.new("var | join").render(@context)
  end

  def test_sort
    @context['value'] = 3
-    @context['numbers'] = [2, 1, 4, 3]
+    @context['numbers'] = [2,1,4,3]
    @context['words'] = ['expected', 'as', 'alphabetic']
    @context['arrays'] = ['flower', 'are']
-    @context['case_sensitive'] = ['sensitive', 'Expected', 'case']

-    assert_equal '1 2 3 4', Template.parse("{{numbers | sort | join}}").render(@context)
-    assert_equal 'alphabetic as expected', Template.parse("{{words | sort | join}}").render(@context)
-    assert_equal '3', Template.parse("{{value | sort}}").render(@context)
-    assert_equal 'are flower', Template.parse("{{arrays | sort | join}}").render(@context)
-    assert_equal 'Expected case sensitive', Template.parse("{{case_sensitive | sort | join}}").render(@context)
-  end
-
-  def test_sort_natural
-    @context['words'] = ['case', 'Assert', 'Insensitive']
-    @context['hashes'] = [{ 'a' => 'A' }, { 'a' => 'b' }, { 'a' => 'C' }]
-    @context['objects'] = [TestObject.new('A'), TestObject.new('b'), TestObject.new('C')]
-
-    # Test strings
-    assert_equal 'Assert case Insensitive', Template.parse("{{words | sort_natural | join}}").render(@context)
-
-    # Test hashes
-    assert_equal 'A b C', Template.parse("{{hashes | sort_natural: 'a' | map: 'a' | join}}").render(@context)
-
-    # Test objects
-    assert_equal 'A b C', Template.parse("{{objects | sort_natural: 'a' | map: 'a' | join}}").render(@context)
-  end
-
-  def test_compact
-    @context['words'] = ['a', nil, 'b', nil, 'c']
-    @context['hashes'] = [{ 'a' => 'A' }, { 'a' => nil }, { 'a' => 'C' }]
-    @context['objects'] = [TestObject.new('A'), TestObject.new(nil), TestObject.new('C')]
-
-    # Test strings
-    assert_equal 'a b c', Template.parse("{{words | compact | join}}").render(@context)
-
-    # Test hashes
-    assert_equal 'A C', Template.parse("{{hashes | compact: 'a' | map: 'a' | join}}").render(@context)
-
-    # Test objects
-    assert_equal 'A C', Template.parse("{{objects | compact: 'a' | map: 'a' | join}}").render(@context)
+    assert_equal [1,2,3,4], Variable.new("numbers | sort").render(@context)
+    assert_equal ['alphabetic', 'as', 'expected'], Variable.new("words | sort").render(@context)
+    assert_equal [3], Variable.new("value | sort").render(@context)
+    assert_equal ['are', 'flower'], Variable.new("arrays | sort").render(@context)
  end

  def test_strip_html
    @context['var'] = "<b>bla blub</a>"

-    assert_equal "bla blub", Template.parse("{{ var | strip_html }}").render(@context)
+    assert_equal "bla blub", Variable.new("var | strip_html").render(@context)
  end

  def test_strip_html_ignore_comments_with_html
    @context['var'] = "<!-- split and some <ul> tag --><b>bla blub</a>"

-    assert_equal "bla blub", Template.parse("{{ var | strip_html }}").render(@context)
+    assert_equal "bla blub", Variable.new("var | strip_html").render(@context)
  end

  def test_capitalize
    @context['var'] = "blub"

-    assert_equal "Blub", Template.parse("{{ var | capitalize }}").render(@context)
+    assert_equal "Blub", Variable.new("var | capitalize").render(@context)
  end

  def test_nonexistent_filter_is_ignored
    @context['var'] = 1000

-    assert_equal '1000', Template.parse("{{ var | xyzzy }}").render(@context)
+    assert_equal 1000, Variable.new("var | xyzzy").render(@context)
  end

  def test_filter_with_keyword_arguments
    @context['surname'] = 'john'
-    @context['input'] = 'hello %{first_name}, %{last_name}'
    @context.add_filters(SubstituteFilter)
-    output = Template.parse(%({{ input | substitute: first_name: surname, last_name: 'doe' }})).render(@context)
+    output = Variable.new(%! 'hello %{first_name}, %{last_name}' | substitute: first_name: surname, last_name: 'doe' !).render(@context)
    assert_equal 'hello john, doe', output
  end

  def test_override_object_method_in_filter
-    assert_equal "tap overridden", Template.parse("{{var | tap}}").render!({ 'var' => 1000 }, filters: [OverrideObjectMethodFilter])
+    assert_equal "tap overridden", Template.parse("{{var | tap}}").render!({ 'var' => 1000 }, :filters => [OverrideObjectMethodFilter])

    # tap still treated as a non-existent filter
    assert_equal "1000", Template.parse("{{var | tap}}").render!({ 'var' => 1000 })
@@ -159,8 +126,8 @@ class FiltersInTemplate < Minitest::Test
  def test_local_global
    with_global_filter(MoneyFilter) do
      assert_equal " 1000$ ", Template.parse("{{1000 | money}}").render!(nil, nil)
-      assert_equal " 1000$ CAD ", Template.parse("{{1000 | money}}").render!(nil, filters: CanadianMoneyFilter)
-      assert_equal " 1000$ CAD ", Template.parse("{{1000 | money}}").render!(nil, filters: [CanadianMoneyFilter])
+      assert_equal " 1000$ CAD ", Template.parse("{{1000 | money}}").render!(nil, :filters => CanadianMoneyFilter)
+      assert_equal " 1000$ CAD ", Template.parse("{{1000 | money}}").render!(nil, :filters => [CanadianMoneyFilter])
    end
  end

@@ -169,10 +136,3 @@ class FiltersInTemplate < Minitest::Test
    assert_equal " 1000$ CAD ", Template.parse("{{1000 | money}}").render!(nil, [CanadianMoneyFilter])
  end
 end # FiltersTest
-
-class TestObject < Liquid::Drop
-  attr_accessor :a
-  def initialize(a)
-    @a = a
-  end
-end
--- a/test/integration/hash_ordering_test.rb
+++ b/test/integration/hash_ordering_test.rb
@@ -1,18 +1,18 @@
 require 'test_helper'

+module MoneyFilter
+  def money(input)
+    sprintf(' %d$ ', input)
+  end
+end
+
+module CanadianMoneyFilter
+  def money(input)
+    sprintf(' %d$ CAD ', input)
+  end
+end
+
 class HashOrderingTest < Minitest::Test
-  module MoneyFilter
-    def money(input)
-      sprintf(' %d$ ', input)
-    end
-  end
-
-  module CanadianMoneyFilter
-    def money(input)
-      sprintf(' %d$ CAD ', input)
-    end
-  end
-
  include Liquid

  def test_global_register_order
--- a/test/integration/output_test.rb
+++ b/test/integration/output_test.rb
@@ -14,7 +14,7 @@ module FunnyFilter
  end

  def add_tag(input, tag = "p", id = "foo")
-    %(<#{tag} id="#{id}">#{input}</#{tag}>)
+    %|<#{tag} id="#{id}">#{input}</#{tag}>|
  end

  def paragraph(input)
@@ -22,8 +22,9 @@ module FunnyFilter
  end

  def link_to(name, url)
-    %(<a href="#{url}">#{name}</a>)
+    %|<a href="#{url}">#{name}</a>|
  end
+
 end

 class OutputTest < Minitest::Test
@@ -32,92 +33,84 @@ class OutputTest < Minitest::Test
  def setup
    @assigns = {
      'best_cars' => 'bmw',
-      'car' => { 'bmw' => 'good', 'gm' => 'bad' }
-    }
+      'car' => {'bmw' => 'good', 'gm' => 'bad'}
+      }
  end

  def test_variable
-    text = %( {{best_cars}} )
+    text = %| {{best_cars}} |

-    expected = %( bmw )
+    expected = %| bmw |
    assert_equal expected, Template.parse(text).render!(@assigns)
  end

-  def test_variable_traversing_with_two_brackets
-    text = %({{ site.data.menu[include.menu][include.locale] }})
-    assert_equal "it works!", Template.parse(text).render!(
-      "site" => { "data" => { "menu" => { "foo" => { "bar" => "it works!" } } } },
-      "include" => { "menu" => "foo", "locale" => "bar" }
-    )
-  end
-
  def test_variable_traversing
-    text = %( {{car.bmw}} {{car.gm}} {{car.bmw}} )
+    text = %| {{car.bmw}} {{car.gm}} {{car.bmw}} |

-    expected = %( good bad good )
+    expected = %| good bad good |
    assert_equal expected, Template.parse(text).render!(@assigns)
  end

  def test_variable_piping
    text = %( {{ car.gm | make_funny }} )
-    expected = %( LOL )
+    expected = %| LOL |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end

  def test_variable_piping_with_input
    text = %( {{ car.gm | cite_funny }} )
-    expected = %( LOL: bad )
+    expected = %| LOL: bad |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end

  def test_variable_piping_with_args
    text = %! {{ car.gm | add_smiley : ':-(' }} !
    expected = %| bad :-( |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end

  def test_variable_piping_with_no_args
-    text = %( {{ car.gm | add_smiley }} )
+    text = %! {{ car.gm | add_smiley }} !
    expected = %| bad :-) |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end

  def test_multiple_variable_piping_with_args
    text = %! {{ car.gm | add_smiley : ':-(' | add_smiley : ':-('}} !
    expected = %| bad :-( :-( |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end

  def test_variable_piping_with_multiple_args
-    text = %( {{ car.gm | add_tag : 'span', 'bar'}} )
-    expected = %( <span id="bar">bad</span> )
+    text = %! {{ car.gm | add_tag : 'span', 'bar'}} !
+    expected = %| <span id="bar">bad</span> |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end

  def test_variable_piping_with_variable_args
-    text = %( {{ car.gm | add_tag : 'span', car.bmw}} )
-    expected = %( <span id="good">bad</span> )
+    text = %! {{ car.gm | add_tag : 'span', car.bmw}} !
+    expected = %| <span id="good">bad</span> |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end

  def test_multiple_pipings
    text = %( {{ best_cars | cite_funny | paragraph }} )
-    expected = %( <p>LOL: bmw</p> )
+    expected = %| <p>LOL: bmw</p> |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end

  def test_link_to
    text = %( {{ 'Typo' | link_to: 'http://typo.leetsoft.com' }} )
-    expected = %( <a href="http://typo.leetsoft.com">Typo</a> )
+    expected = %| <a href="http://typo.leetsoft.com">Typo</a> |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: [FunnyFilter])
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => [FunnyFilter])
  end
 end # OutputTest
--- a/test/integration/parsing_quirks_test.rb
+++ b/test/integration/parsing_quirks_test.rb
@@ -62,25 +62,25 @@ class ParsingQuirksTest < Minitest::Test
  end

  def test_no_error_on_lax_empty_filter
-    assert Template.parse("{{test |a|b|}}", error_mode: :lax)
-    assert Template.parse("{{test}}", error_mode: :lax)
-    assert Template.parse("{{|test|}}", error_mode: :lax)
+    assert Template.parse("{{test |a|b|}}", :error_mode => :lax)
+    assert Template.parse("{{test}}", :error_mode => :lax)
+    assert Template.parse("{{|test|}}", :error_mode => :lax)
  end

  def test_meaningless_parens_lax
    with_error_mode(:lax) do
-      assigns = { 'b' => 'bar', 'c' => 'baz' }
+      assigns = {'b' => 'bar', 'c' => 'baz'}
      markup = "a == 'foo' or (b == 'bar' and c == 'baz') or false"
-      assert_template_result(' YES ', "{% if #{markup} %} YES {% endif %}", assigns)
+      assert_template_result(' YES ',"{% if #{markup} %} YES {% endif %}", assigns)
    end
  end

  def test_unexpected_characters_silently_eat_logic_lax
    with_error_mode(:lax) do
      markup = "true && false"
-      assert_template_result(' YES ', "{% if #{markup} %} YES {% endif %}")
+      assert_template_result(' YES ',"{% if #{markup} %} YES {% endif %}")
      markup = "false || true"
-      assert_template_result('', "{% if #{markup} %} YES {% endif %}")
+      assert_template_result('',"{% if #{markup} %} YES {% endif %}")
    end
  end

@@ -92,7 +92,7 @@ class ParsingQuirksTest < Minitest::Test

  def test_unanchored_filter_arguments
    with_error_mode(:lax) do
-      assert_template_result('hi', "{{ 'hi there' | split$$$:' ' | first }}")
+      assert_template_result('hi',"{{ 'hi there' | split$$$:' ' | first }}")

      assert_template_result('x', "{{ 'X' | downcase) }}")

@@ -115,4 +115,5 @@ class ParsingQuirksTest < Minitest::Test
      assert_template_result('12345', "{% for i in (1...5) %}{{ i }}{% endfor %}")
    end
  end
+
 end # ParsingQuirksTest
--- a/test/integration/render_profiling_test.rb
+++ b/test/integration/render_profiling_test.rb
@@ -21,7 +21,7 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_parse_makes_available_simple_profiling
-    t = Template.parse("{{ 'a string' | upcase }}", profile: true)
+    t = Template.parse("{{ 'a string' | upcase }}", :profile => true)
    t.render!

    assert_equal 1, t.profiler.length
@@ -31,14 +31,14 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_render_ignores_raw_strings_when_profiling
-    t = Template.parse("This is raw string\nstuff\nNewline", profile: true)
+    t = Template.parse("This is raw string\nstuff\nNewline", :profile => true)
    t.render!

    assert_equal 0, t.profiler.length
  end

  def test_profiling_includes_line_numbers_of_liquid_nodes
-    t = Template.parse("{{ 'a string' | upcase }}\n{% increment test %}", profile: true)
+    t = Template.parse("{{ 'a string' | upcase }}\n{% increment test %}", :profile => true)
    t.render!
    assert_equal 2, t.profiler.length

@@ -49,7 +49,7 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_profiling_includes_line_numbers_of_included_partials
-    t = Template.parse("{% include 'a_template' %}", profile: true)
+    t = Template.parse("{% include 'a_template' %}", :profile => true)
    t.render!

    included_children = t.profiler[0].children
@@ -61,7 +61,7 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_profiling_times_the_rendering_of_tokens
-    t = Template.parse("{% include 'a_template' %}", profile: true)
+    t = Template.parse("{% include 'a_template' %}", :profile => true)
    t.render!

    node = t.profiler[0]
@@ -69,14 +69,14 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_profiling_times_the_entire_render
-    t = Template.parse("{% include 'a_template' %}", profile: true)
+    t = Template.parse("{% include 'a_template' %}", :profile => true)
    t.render!

    assert t.profiler.total_render_time >= 0, "Total render time was not calculated"
  end

  def test_profiling_uses_include_to_mark_children
-    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}", profile: true)
+    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}", :profile => true)
    t.render!

    include_node = t.profiler[1]
@@ -84,7 +84,7 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_profiling_marks_children_with_the_name_of_included_partial
-    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}", profile: true)
+    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}", :profile => true)
    t.render!

    include_node = t.profiler[1]
@@ -94,7 +94,7 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_profiling_supports_multiple_templates
-    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}\n{% include 'b_template' %}", profile: true)
+    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}\n{% include 'b_template' %}", :profile => true)
    t.render!

    a_template = t.profiler[1]
@@ -109,7 +109,7 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_profiling_supports_rendering_the_same_partial_multiple_times
-    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}\n{% include 'a_template' %}", profile: true)
+    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}\n{% include 'a_template' %}", :profile => true)
    t.render!

    a_template1 = t.profiler[1]
@@ -124,7 +124,7 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_can_iterate_over_each_profiling_entry
-    t = Template.parse("{{ 'a string' | upcase }}\n{% increment test %}", profile: true)
+    t = Template.parse("{{ 'a string' | upcase }}\n{% increment test %}", :profile => true)
    t.render!

    timing_count = 0
@@ -136,7 +136,7 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_profiling_marks_children_of_if_blocks
-    t = Template.parse("{% if true %} {% increment test %} {{ test }} {% endif %}", profile: true)
+    t = Template.parse("{% if true %} {% increment test %} {{ test }} {% endif %}", :profile => true)
    t.render!

    assert_equal 1, t.profiler.length
@@ -144,8 +144,8 @@ class RenderProfilingTest < Minitest::Test
  end

  def test_profiling_marks_children_of_for_blocks
-    t = Template.parse("{% for item in collection %} {{ item }} {% endfor %}", profile: true)
-    t.render!({ "collection" => ["one", "two"] })
+    t = Template.parse("{% for item in collection %} {{ item }} {% endfor %}", :profile => true)
+    t.render!({"collection" => ["one", "two"]})

    assert_equal 1, t.profiler.length
    # Will profile each invocation of the for block
--- a/test/integration/security_test.rb
+++ b/test/integration/security_test.rb
@@ -9,36 +9,34 @@ end
 class SecurityTest < Minitest::Test
  include Liquid

-  def setup
-    @assigns = {}
-  end
-
  def test_no_instance_eval
    text = %( {{ '1+1' | instance_eval }} )
-    expected = %( 1+1 )
+    expected = %| 1+1 |

    assert_equal expected, Template.parse(text).render!(@assigns)
  end

  def test_no_existing_instance_eval
    text = %( {{ '1+1' | __instance_eval__ }} )
-    expected = %( 1+1 )
+    expected = %| 1+1 |

    assert_equal expected, Template.parse(text).render!(@assigns)
  end

+
  def test_no_instance_eval_after_mixing_in_new_filter
    text = %( {{ '1+1' | instance_eval }} )
-    expected = %( 1+1 )
+    expected = %| 1+1 |

    assert_equal expected, Template.parse(text).render!(@assigns)
  end

+
  def test_no_instance_eval_later_in_chain
    text = %( {{ '1+1' | add_one | instance_eval }} )
-    expected = %( 1+1 + 1 )
+    expected = %| 1+1 + 1 |

-    assert_equal expected, Template.parse(text).render!(@assigns, filters: SecurityFilter)
+    assert_equal expected, Template.parse(text).render!(@assigns, :filters => SecurityFilter)
  end

  def test_does_not_add_filters_to_symbol_table
--- a/test/integration/standard_filter_test.rb
+++ b/test/integration/standard_filter_test.rb
@@ -41,16 +41,6 @@ class TestEnumerable < Liquid::Drop
  end
 end

-class NumberLikeThing < Liquid::Drop
-  def initialize(amount)
-    @amount = amount
-  end
-
-  def to_number
-    @amount
-  end
-end
-
 class StandardFiltersTest < Minitest::Test
  include Liquid

@@ -59,7 +49,7 @@ class StandardFiltersTest < Minitest::Test
  end

  def test_size
-    assert_equal 3, @filters.size([1, 2, 3])
+    assert_equal 3, @filters.size([1,2,3])
    assert_equal 0, @filters.size([])
    assert_equal 0, @filters.size(nil)
  end
@@ -86,27 +76,20 @@ class StandardFiltersTest < Minitest::Test
    assert_equal '', @filters.slice(nil, 0)
    assert_equal '', @filters.slice('foobar', 100, 10)
    assert_equal '', @filters.slice('foobar', -100, 10)
-    assert_equal 'oob', @filters.slice('foobar', '1', '3')
-    assert_raises(Liquid::ArgumentError) do
-      @filters.slice('foobar', nil)
-    end
-    assert_raises(Liquid::ArgumentError) do
-      @filters.slice('foobar', 0, "")
-    end
  end

  def test_slice_on_arrays
    input = 'foobar'.split(//)
-    assert_equal %w(o o b), @filters.slice(input, 1, 3)
-    assert_equal %w(o o b a r), @filters.slice(input, 1, 1000)
-    assert_equal %w(), @filters.slice(input, 1, 0)
-    assert_equal %w(o), @filters.slice(input, 1, 1)
-    assert_equal %w(b a r), @filters.slice(input, 3, 3)
-    assert_equal %w(a r), @filters.slice(input, -2, 2)
-    assert_equal %w(a r), @filters.slice(input, -2, 1000)
-    assert_equal %w(r), @filters.slice(input, -1)
-    assert_equal %w(), @filters.slice(input, 100, 10)
-    assert_equal %w(), @filters.slice(input, -100, 10)
+    assert_equal %w{o o b}, @filters.slice(input, 1, 3)
+    assert_equal %w{o o b a r}, @filters.slice(input, 1, 1000)
+    assert_equal %w{}, @filters.slice(input, 1, 0)
+    assert_equal %w{o}, @filters.slice(input, 1, 1)
+    assert_equal %w{b a r}, @filters.slice(input, 3, 3)
+    assert_equal %w{a r}, @filters.slice(input, -2, 2)
+    assert_equal %w{a r}, @filters.slice(input, -2, 1000)
+    assert_equal %w{r}, @filters.slice(input, -1)
+    assert_equal %w{}, @filters.slice(input, 100, 10)
+    assert_equal %w{}, @filters.slice(input, -100, 10)
  end

  def test_truncate
@@ -115,20 +98,19 @@ class StandardFiltersTest < Minitest::Test
    assert_equal '...', @filters.truncate('1234567890', 0)
    assert_equal '1234567890', @filters.truncate('1234567890')
    assert_equal "测试...", @filters.truncate("测试测试测试测试", 5)
-    assert_equal '12341', @filters.truncate("1234567890", 5, 1)
  end

  def test_split
-    assert_equal ['12', '34'], @filters.split('12~34', '~')
-    assert_equal ['A? ', ' ,Z'], @filters.split('A? ~ ~ ~ ,Z', '~ ~ ~')
+    assert_equal ['12','34'], @filters.split('12~34', '~')
+    assert_equal ['A? ',' ,Z'], @filters.split('A? ~ ~ ~ ,Z', '~ ~ ~')
    assert_equal ['A?Z'], @filters.split('A?Z', '~')
+    # Regexp works although Liquid does not support.
+    assert_equal ['A','Z'], @filters.split('AxZ', /x/)
    assert_equal [], @filters.split(nil, ' ')
-    assert_equal ['A', 'Z'], @filters.split('A1Z', 1)
  end

  def test_escape
    assert_equal '&lt;strong&gt;', @filters.escape('<strong>')
-    assert_equal nil, @filters.escape(nil)
    assert_equal '&lt;strong&gt;', @filters.h('<strong>')
  end

@@ -141,20 +123,12 @@ class StandardFiltersTest < Minitest::Test
    assert_equal nil, @filters.url_encode(nil)
  end

-  def test_url_decode
-    assert_equal 'foo bar', @filters.url_decode('foo+bar')
-    assert_equal 'foo bar', @filters.url_decode('foo%20bar')
-    assert_equal 'foo+1@example.com', @filters.url_decode('foo%2B1%40example.com')
-    assert_equal nil, @filters.url_decode(nil)
-  end
-
  def test_truncatewords
    assert_equal 'one two three', @filters.truncatewords('one two three', 4)
    assert_equal 'one two...', @filters.truncatewords('one two three', 2)
    assert_equal 'one two three', @filters.truncatewords('one two three')
    assert_equal 'Two small (13&#8221; x 5.5&#8221; x 10&#8221; high) baskets fit inside one large basket (13&#8221;...', @filters.truncatewords('Two small (13&#8221; x 5.5&#8221; x 10&#8221; high) baskets fit inside one large basket (13&#8221; x 16&#8221; x 10.5&#8221; high) with cover.', 15)
    assert_equal "测试测试测试测试", @filters.truncatewords('测试测试测试测试', 5)
-    assert_equal 'one two1', @filters.truncatewords("one two three", 2, 1)
  end

  def test_strip_html
@@ -168,80 +142,45 @@ class StandardFiltersTest < Minitest::Test
  end

  def test_join
-    assert_equal '1 2 3 4', @filters.join([1, 2, 3, 4])
-    assert_equal '1 - 2 - 3 - 4', @filters.join([1, 2, 3, 4], ' - ')
+    assert_equal '1 2 3 4', @filters.join([1,2,3,4])
+    assert_equal '1 - 2 - 3 - 4', @filters.join([1,2,3,4], ' - ')
  end

  def test_sort
-    assert_equal [1, 2, 3, 4], @filters.sort([4, 3, 2, 1])
-    assert_equal [{ "a" => 1 }, { "a" => 2 }, { "a" => 3 }, { "a" => 4 }], @filters.sort([{ "a" => 4 }, { "a" => 3 }, { "a" => 1 }, { "a" => 2 }], "a")
-  end
-
-  def test_sort_when_property_is_sometimes_missing_puts_nils_last
-    input = [
-      { "price" => 4, "handle" => "alpha" },
-      { "handle" => "beta" },
-      { "price" => 1, "handle" => "gamma" },
-      { "handle" => "delta" },
-      { "price" => 2, "handle" => "epsilon" }
-    ]
-    expectation = [
-      { "price" => 1, "handle" => "gamma" },
-      { "price" => 2, "handle" => "epsilon" },
-      { "price" => 4, "handle" => "alpha" },
-      { "handle" => "delta" },
-      { "handle" => "beta" }
-    ]
-    assert_equal expectation, @filters.sort(input, "price")
-  end
-
-  def test_sort_empty_array
-    assert_equal [], @filters.sort([], "a")
-  end
-
-  def test_sort_natural_empty_array
-    assert_equal [], @filters.sort_natural([], "a")
+    assert_equal [1,2,3,4], @filters.sort([4,3,2,1])
+    assert_equal [{"a" => 1}, {"a" => 2}, {"a" => 3}, {"a" => 4}], @filters.sort([{"a" => 4}, {"a" => 3}, {"a" => 1}, {"a" => 2}], "a")
  end

  def test_legacy_sort_hash
-    assert_equal [{ a: 1, b: 2 }], @filters.sort({ a: 1, b: 2 })
+    assert_equal [{a:1, b:2}], @filters.sort({a:1, b:2})
  end

  def test_numerical_vs_lexicographical_sort
    assert_equal [2, 10], @filters.sort([10, 2])
-    assert_equal [{ "a" => 2 }, { "a" => 10 }], @filters.sort([{ "a" => 10 }, { "a" => 2 }], "a")
+    assert_equal [{"a" => 2}, {"a" => 10}], @filters.sort([{"a" => 10}, {"a" => 2}], "a")
    assert_equal ["10", "2"], @filters.sort(["10", "2"])
-    assert_equal [{ "a" => "10" }, { "a" => "2" }], @filters.sort([{ "a" => "10" }, { "a" => "2" }], "a")
+    assert_equal [{"a" => "10"}, {"a" => "2"}], @filters.sort([{"a" => "10"}, {"a" => "2"}], "a")
  end

  def test_uniq
-    assert_equal ["foo"], @filters.uniq("foo")
-    assert_equal [1, 3, 2, 4], @filters.uniq([1, 1, 3, 2, 3, 1, 4, 3, 2, 1])
-    assert_equal [{ "a" => 1 }, { "a" => 3 }, { "a" => 2 }], @filters.uniq([{ "a" => 1 }, { "a" => 3 }, { "a" => 1 }, { "a" => 2 }], "a")
+    assert_equal [1,3,2,4], @filters.uniq([1,1,3,2,3,1,4,3,2,1])
+    assert_equal [{"a" => 1}, {"a" => 3}, {"a" => 2}], @filters.uniq([{"a" => 1}, {"a" => 3}, {"a" => 1}, {"a" => 2}], "a")
    testdrop = TestDrop.new
    assert_equal [testdrop], @filters.uniq([testdrop, TestDrop.new], 'test')
  end

-  def test_uniq_empty_array
-    assert_equal [], @filters.uniq([], "a")
-  end
-
-  def test_compact_empty_array
-    assert_equal [], @filters.compact([], "a")
-  end
-
  def test_reverse
-    assert_equal [4, 3, 2, 1], @filters.reverse([1, 2, 3, 4])
+    assert_equal [4,3,2,1], @filters.reverse([1,2,3,4])
  end

  def test_legacy_reverse_hash
-    assert_equal [{ a: 1, b: 2 }], @filters.reverse(a: 1, b: 2)
+    assert_equal [{a:1, b:2}], @filters.reverse(a:1, b:2)
  end

  def test_map
-    assert_equal [1, 2, 3, 4], @filters.map([{ "a" => 1 }, { "a" => 2 }, { "a" => 3 }, { "a" => 4 }], 'a')
+    assert_equal [1,2,3,4], @filters.map([{"a" => 1}, {"a" => 2}, {"a" => 3}, {"a" => 4}], 'a')
    assert_template_result 'abc', "{{ ary | map:'foo' | map:'bar' }}",
-      'ary' => [{ 'foo' => { 'bar' => 'a' } }, { 'foo' => { 'bar' => 'b' } }, { 'foo' => { 'bar' => 'c' } }]
+      'ary' => [{'foo' => {'bar' => 'a'}}, {'foo' => {'bar' => 'b'}}, {'foo' => {'bar' => 'c'}}]
  end

  def test_map_doesnt_call_arbitrary_stuff
@@ -273,24 +212,11 @@ class StandardFiltersTest < Minitest::Test

  def test_map_over_proc
    drop = TestDrop.new
-    p = proc{ drop }
+    p = Proc.new{ drop }
    templ = '{{ procs | map: "test" }}'
    assert_template_result "testfoo", templ, "procs" => [p]
  end

-  def test_map_over_drops_returning_procs
-    drops = [
-      {
-        "proc" => ->{ "foo" },
-      },
-      {
-        "proc" => ->{ "bar" },
-      },
-    ]
-    templ = '{{ drops | map: "proc" }}'
-    assert_template_result "foobar", templ, "drops" => drops
-  end
-
  def test_map_works_on_enumerables
    assert_template_result "123", '{{ foo | map: "foo" }}', "foo" => TestEnumerable.new
  end
@@ -304,10 +230,6 @@ class StandardFiltersTest < Minitest::Test
    assert_template_result 'foobar', '{{ foo | last }}', 'foo' => [ThingWithToLiquid.new]
  end

-  def test_truncate_calls_to_liquid
-    assert_template_result "wo...", '{{ foo | truncate: 5 }}', "foo" => TestThing.new
-  end
-
  def test_date
    assert_equal 'May', @filters.date(Time.parse("2006-05-05 10:00:00"), "%B")
    assert_equal 'June', @filters.date(Time.parse("2006-06-05 10:00:00"), "%B")
@@ -331,34 +253,26 @@ class StandardFiltersTest < Minitest::Test

    assert_equal nil, @filters.date(nil, "%B")

-    assert_equal '', @filters.date('', "%B")
-
-    with_timezone("UTC") do
-      assert_equal "07/05/2006", @filters.date(1152098955, "%m/%d/%Y")
-      assert_equal "07/05/2006", @filters.date("1152098955", "%m/%d/%Y")
-    end
+    assert_equal "07/05/2006", @filters.date(1152098955, "%m/%d/%Y")
+    assert_equal "07/05/2006", @filters.date("1152098955", "%m/%d/%Y")
  end

  def test_first_last
-    assert_equal 1, @filters.first([1, 2, 3])
-    assert_equal 3, @filters.last([1, 2, 3])
+    assert_equal 1, @filters.first([1,2,3])
+    assert_equal 3, @filters.last([1,2,3])
    assert_equal nil, @filters.first([])
    assert_equal nil, @filters.last([])
  end

  def test_replace
    assert_equal '2 2 2 2', @filters.replace('1 1 1 1', '1', 2)
-    assert_equal '2 2 2 2', @filters.replace('1 1 1 1', 1, 2)
    assert_equal '2 1 1 1', @filters.replace_first('1 1 1 1', '1', 2)
-    assert_equal '2 1 1 1', @filters.replace_first('1 1 1 1', 1, 2)
    assert_template_result '2 1 1 1', "{{ '1 1 1 1' | replace_first: '1', 2 }}"
  end

  def test_remove
    assert_equal '   ', @filters.remove("a a a a", 'a')
-    assert_equal '   ', @filters.remove("1 1 1 1", 1)
    assert_equal 'a a a', @filters.remove_first("a a a a", 'a ')
-    assert_equal ' 1 1 1', @filters.remove_first("1 1 1 1", 1)
    assert_template_result 'a a a', "{{ 'a a a a' | remove_first: 'a ' }}"
  end

@@ -393,38 +307,20 @@ class StandardFiltersTest < Minitest::Test
  def test_plus
    assert_template_result "2", "{{ 1 | plus:1 }}"
    assert_template_result "2.0", "{{ '1' | plus:'1.0' }}"
-
-    assert_template_result "5", "{{ price | plus:'2' }}", 'price' => NumberLikeThing.new(3)
  end

  def test_minus
    assert_template_result "4", "{{ input | minus:operand }}", 'input' => 5, 'operand' => 1
    assert_template_result "2.3", "{{ '4.3' | minus:'2' }}"
-
-    assert_template_result "5", "{{ price | minus:'2' }}", 'price' => NumberLikeThing.new(7)
-  end
-
-  def test_abs
-    assert_template_result "17", "{{ 17 | abs }}"
-    assert_template_result "17", "{{ -17 | abs }}"
-    assert_template_result "17", "{{ '17' | abs }}"
-    assert_template_result "17", "{{ '-17' | abs }}"
-    assert_template_result "0", "{{ 0 | abs }}"
-    assert_template_result "0", "{{ '0' | abs }}"
-    assert_template_result "17.42", "{{ 17.42 | abs }}"
-    assert_template_result "17.42", "{{ -17.42 | abs }}"
-    assert_template_result "17.42", "{{ '17.42' | abs }}"
-    assert_template_result "17.42", "{{ '-17.42' | abs }}"
  end

  def test_times
    assert_template_result "12", "{{ 3 | times:4 }}"
    assert_template_result "0", "{{ 'foo' | times:4 }}"
+
    assert_template_result "6", "{{ '2.1' | times:3 | replace: '.','-' | plus:0}}"
+
    assert_template_result "7.25", "{{ 0.0725 | times:100 }}"
-    assert_template_result "-7.25", '{{ "-0.0725" | times:100 }}'
-    assert_template_result "7.25", '{{ "-0.0725" | times: -100 }}'
-    assert_template_result "4", "{{ price | times:2 }}", 'price' => NumberLikeThing.new(2)
  end

  def test_divided_by
@@ -435,58 +331,32 @@ class StandardFiltersTest < Minitest::Test
    assert_equal "Liquid error: divided by 0", Template.parse("{{ 5 | divided_by:0 }}").render

    assert_template_result "0.5", "{{ 2.0 | divided_by:4 }}"
-    assert_raises(Liquid::ZeroDivisionError) do
-      assert_template_result "4", "{{ 1 | modulo: 0 }}"
-    end
-
-    assert_template_result "5", "{{ price | divided_by:2 }}", 'price' => NumberLikeThing.new(10)
  end

  def test_modulo
    assert_template_result "1", "{{ 3 | modulo:2 }}"
-    assert_raises(Liquid::ZeroDivisionError) do
-      assert_template_result "4", "{{ 1 | modulo: 0 }}"
-    end
-
-    assert_template_result "1", "{{ price | modulo:2 }}", 'price' => NumberLikeThing.new(3)
  end

  def test_round
    assert_template_result "5", "{{ input | round }}", 'input' => 4.6
    assert_template_result "4", "{{ '4.3' | round }}"
    assert_template_result "4.56", "{{ input | round: 2 }}", 'input' => 4.5612
-    assert_raises(Liquid::FloatDomainError) do
-      assert_template_result "4", "{{ 1.0 | divided_by: 0.0 | round }}"
-    end
-
-    assert_template_result "5", "{{ price | round }}", 'price' => NumberLikeThing.new(4.6)
-    assert_template_result "4", "{{ price | round }}", 'price' => NumberLikeThing.new(4.3)
  end

  def test_ceil
    assert_template_result "5", "{{ input | ceil }}", 'input' => 4.6
    assert_template_result "5", "{{ '4.3' | ceil }}"
-    assert_raises(Liquid::FloatDomainError) do
-      assert_template_result "4", "{{ 1.0 | divided_by: 0.0 | ceil }}"
-    end
-
-    assert_template_result "5", "{{ price | ceil }}", 'price' => NumberLikeThing.new(4.6)
  end

  def test_floor
    assert_template_result "4", "{{ input | floor }}", 'input' => 4.6
    assert_template_result "4", "{{ '4.3' | floor }}"
-    assert_raises(Liquid::FloatDomainError) do
-      assert_template_result "4", "{{ 1.0 | divided_by: 0.0 | floor }}"
-    end
-
-    assert_template_result "5", "{{ price | floor }}", 'price' => NumberLikeThing.new(5.4)
  end

  def test_append
-    assigns = { 'a' => 'bc', 'b' => 'd' }
-    assert_template_result('bcd', "{{ a | append: 'd'}}", assigns)
-    assert_template_result('bcd', "{{ a | append: b}}", assigns)
+    assigns = {'a' => 'bc', 'b' => 'd' }
+    assert_template_result('bcd',"{{ a | append: 'd'}}",assigns)
+    assert_template_result('bcd',"{{ a | append: b}}",assigns)
  end

  def test_concat
@@ -494,15 +364,16 @@ class StandardFiltersTest < Minitest::Test
    assert_equal [1, 2, 'a'],  @filters.concat([1, 2], ['a'])
    assert_equal [1, 2, 10],   @filters.concat([1, 2], [10])

-    assert_raises(Liquid::ArgumentError, "concat filter requires an array argument") do
+    assert_raises(TypeError) do
+      # no implicit conversion of Fixnum into Array
      @filters.concat([1, 2], 10)
    end
  end

  def test_prepend
-    assigns = { 'a' => 'bc', 'b' => 'a' }
-    assert_template_result('abc', "{{ a | prepend: 'a'}}", assigns)
-    assert_template_result('abc', "{{ a | prepend: b}}", assigns)
+    assigns = {'a' => 'bc', 'b' => 'a' }
+    assert_template_result('abc',"{{ a | prepend: 'a'}}",assigns)
+    assert_template_result('abc',"{{ a | prepend: b}}",assigns)
  end

  def test_default
@@ -515,21 +386,6 @@ class StandardFiltersTest < Minitest::Test
  end

  def test_cannot_access_private_methods
-    assert_template_result('a', "{{ 'a' | to_number }}")
-  end
-
-  def test_date_raises_nothing
-    assert_template_result('', "{{ '' | date: '%D' }}")
-    assert_template_result('abc', "{{ 'abc' | date: '%D' }}")
-  end
-
-  private
-
-  def with_timezone(tz)
-    old_tz = ENV['TZ']
-    ENV['TZ'] = tz
-    yield
-  ensure
-    ENV['TZ'] = old_tz
+    assert_template_result('a',"{{ 'a' | to_number }}")
  end
 end # StandardFiltersTest
--- a/test/integration/tags/break_tag_test.rb
+++ b/test/integration/tags/break_tag_test.rb
@@ -6,10 +6,11 @@ class BreakTagTest < Minitest::Test
  # tests that no weird errors are raised if break is called outside of a
  # block
  def test_break_with_no_block
-    assigns = { 'i' => 1 }
+    assigns = {'i' => 1}
    markup = '{% break %}'
    expected = ''

    assert_template_result(expected, markup, assigns)
  end
+
 end
--- a/test/integration/tags/continue_tag_test.rb
+++ b/test/integration/tags/continue_tag_test.rb
@@ -12,4 +12,5 @@ class ContinueTagTest < Minitest::Test

    assert_template_result(expected, markup, assigns)
  end
+
 end
--- a/test/integration/tags/for_tag_test.rb
+++ b/test/integration/tags/for_tag_test.rb
@@ -10,10 +10,10 @@ class ForTagTest < Minitest::Test
  include Liquid

  def test_for
-    assert_template_result(' yo  yo  yo  yo ', '{%for item in array%} yo {%endfor%}', 'array' => [1, 2, 3, 4])
-    assert_template_result('yoyo', '{%for item in array%}yo{%endfor%}', 'array' => [1, 2])
-    assert_template_result(' yo ', '{%for item in array%} yo {%endfor%}', 'array' => [1])
-    assert_template_result('', '{%for item in array%}{%endfor%}', 'array' => [1, 2])
+    assert_template_result(' yo  yo  yo  yo ','{%for item in array%} yo {%endfor%}','array' => [1,2,3,4])
+    assert_template_result('yoyo','{%for item in array%}yo{%endfor%}','array' => [1,2])
+    assert_template_result(' yo ','{%for item in array%} yo {%endfor%}','array' => [1])
+    assert_template_result('','{%for item in array%}{%endfor%}','array' => [1,2])
    expected = <<HERE

  yo
@@ -28,52 +28,46 @@ HERE
  yo
 {%endfor%}
 HERE
-    assert_template_result(expected, template, 'array' => [1, 2, 3])
+    assert_template_result(expected,template,'array' => [1,2,3])
  end

  def test_for_reversed
-    assigns = { 'array' => [ 1, 2, 3] }
-    assert_template_result('321', '{%for item in array reversed %}{{item}}{%endfor%}', assigns)
+    assigns = {'array' => [ 1, 2, 3] }
+    assert_template_result('321','{%for item in array reversed %}{{item}}{%endfor%}',assigns)
  end

  def test_for_with_range
-    assert_template_result(' 1  2  3 ', '{%for item in (1..3) %} {{item}} {%endfor%}')
-
-    assert_raises(Liquid::ArgumentError) do
-      Template.parse('{% for i in (a..2) %}{% endfor %}').render!("a" => [1, 2])
-    end
-
-    assert_template_result(' 0  1  2  3 ', '{% for item in (a..3) %} {{item}} {% endfor %}', "a" => "invalid integer")
+    assert_template_result(' 1  2  3 ','{%for item in (1..3) %} {{item}} {%endfor%}')
  end

  def test_for_with_variable_range
-    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar) %} {{item}} {%endfor%}', "foobar" => 3)
+    assert_template_result(' 1  2  3 ','{%for item in (1..foobar) %} {{item}} {%endfor%}', "foobar" => 3)
  end

  def test_for_with_hash_value_range
    foobar = { "value" => 3 }
-    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar.value) %} {{item}} {%endfor%}', "foobar" => foobar)
+    assert_template_result(' 1  2  3 ','{%for item in (1..foobar.value) %} {{item}} {%endfor%}', "foobar" => foobar)
  end

  def test_for_with_drop_value_range
    foobar = ThingWithValue.new
-    assert_template_result(' 1  2  3 ', '{%for item in (1..foobar.value) %} {{item}} {%endfor%}', "foobar" => foobar)
+    assert_template_result(' 1  2  3 ','{%for item in (1..foobar.value) %} {{item}} {%endfor%}', "foobar" => foobar)
  end

  def test_for_with_variable
-    assert_template_result(' 1  2  3 ', '{%for item in array%} {{item}} {%endfor%}', 'array' => [1, 2, 3])
-    assert_template_result('123', '{%for item in array%}{{item}}{%endfor%}', 'array' => [1, 2, 3])
-    assert_template_result('123', '{% for item in array %}{{item}}{% endfor %}', 'array' => [1, 2, 3])
-    assert_template_result('abcd', '{%for item in array%}{{item}}{%endfor%}', 'array' => ['a', 'b', 'c', 'd'])
-    assert_template_result('a b c', '{%for item in array%}{{item}}{%endfor%}', 'array' => ['a', ' ', 'b', ' ', 'c'])
-    assert_template_result('abc', '{%for item in array%}{{item}}{%endfor%}', 'array' => ['a', '', 'b', '', 'c'])
+    assert_template_result(' 1  2  3 ','{%for item in array%} {{item}} {%endfor%}','array' => [1,2,3])
+    assert_template_result('123','{%for item in array%}{{item}}{%endfor%}','array' => [1,2,3])
+    assert_template_result('123','{% for item in array %}{{item}}{% endfor %}','array' => [1,2,3])
+    assert_template_result('abcd','{%for item in array%}{{item}}{%endfor%}','array' => ['a','b','c','d'])
+    assert_template_result('a b c','{%for item in array%}{{item}}{%endfor%}','array' => ['a',' ','b',' ','c'])
+    assert_template_result('abc','{%for item in array%}{{item}}{%endfor%}','array' => ['a','','b','','c'])
  end

  def test_for_helpers
-    assigns = { 'array' => [1, 2, 3] }
+    assigns = {'array' => [1,2,3] }
    assert_template_result(' 1/3  2/3  3/3 ',
-      '{%for item in array%} {{forloop.index}}/{{forloop.length}} {%endfor%}',
-      assigns)
+                           '{%for item in array%} {{forloop.index}}/{{forloop.length}} {%endfor%}',
+                           assigns)
    assert_template_result(' 1  2  3 ', '{%for item in array%} {{forloop.index}} {%endfor%}', assigns)
    assert_template_result(' 0  1  2 ', '{%for item in array%} {{forloop.index0}} {%endfor%}', assigns)
    assert_template_result(' 2  1  0 ', '{%for item in array%} {{forloop.rindex0}} {%endfor%}', assigns)
@@ -83,20 +77,20 @@ HERE
  end

  def test_for_and_if
-    assigns = { 'array' => [1, 2, 3] }
+    assigns = {'array' => [1,2,3] }
    assert_template_result('+--',
-      '{%for item in array%}{% if forloop.first %}+{% else %}-{% endif %}{%endfor%}',
-      assigns)
+                           '{%for item in array%}{% if forloop.first %}+{% else %}-{% endif %}{%endfor%}',
+                           assigns)
  end

  def test_for_else
-    assert_template_result('+++', '{%for item in array%}+{%else%}-{%endfor%}', 'array' => [1, 2, 3])
-    assert_template_result('-',   '{%for item in array%}+{%else%}-{%endfor%}', 'array' => [])
-    assert_template_result('-',   '{%for item in array%}+{%else%}-{%endfor%}', 'array' => nil)
+    assert_template_result('+++', '{%for item in array%}+{%else%}-{%endfor%}', 'array'=>[1,2,3])
+    assert_template_result('-',   '{%for item in array%}+{%else%}-{%endfor%}', 'array'=>[])
+    assert_template_result('-',   '{%for item in array%}+{%else%}-{%endfor%}', 'array'=>nil)
  end

  def test_limiting
-    assigns = { 'array' => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] }
+    assigns = {'array' => [1,2,3,4,5,6,7,8,9,0]}
    assert_template_result('12', '{%for i in array limit:2 %}{{ i }}{%endfor%}', assigns)
    assert_template_result('1234', '{%for i in array limit:4 %}{{ i }}{%endfor%}', assigns)
    assert_template_result('3456', '{%for i in array limit:4 offset:2 %}{{ i }}{%endfor%}', assigns)
@@ -104,7 +98,7 @@ HERE
  end

  def test_dynamic_variable_limiting
-    assigns = { 'array' => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] }
+    assigns = {'array' => [1,2,3,4,5,6,7,8,9,0]}
    assigns['limit'] = 2
    assigns['offset'] = 2

@@ -112,17 +106,17 @@ HERE
  end

  def test_nested_for
-    assigns = { 'array' => [[1, 2], [3, 4], [5, 6]] }
+    assigns = {'array' => [[1,2],[3,4],[5,6]] }
    assert_template_result('123456', '{%for item in array%}{%for i in item%}{{ i }}{%endfor%}{%endfor%}', assigns)
  end

  def test_offset_only
-    assigns = { 'array' => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] }
+    assigns = {'array' => [1,2,3,4,5,6,7,8,9,0]}
    assert_template_result('890', '{%for i in array offset:7 %}{{ i }}{%endfor%}', assigns)
  end

  def test_pause_resume
-    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] } }
+    assigns = {'array' => {'items' => [1,2,3,4,5,6,7,8,9,0]}}
    markup = <<-MKUP
      {%for i in array.items limit: 3 %}{{i}}{%endfor%}
      next
@@ -137,11 +131,11 @@ HERE
      next
      789
      XPCTD
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)
  end

  def test_pause_resume_limit
-    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] } }
+    assigns = {'array' => {'items' => [1,2,3,4,5,6,7,8,9,0]}}
    markup = <<-MKUP
      {%for i in array.items limit:3 %}{{i}}{%endfor%}
      next
@@ -156,11 +150,11 @@ HERE
      next
      7
      XPCTD
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)
  end

  def test_pause_resume_BIG_limit
-    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] } }
+    assigns = {'array' => {'items' => [1,2,3,4,5,6,7,8,9,0]}}
    markup = <<-MKUP
      {%for i in array.items limit:3 %}{{i}}{%endfor%}
      next
@@ -175,102 +169,103 @@ HERE
      next
      7890
      XPCTD
-    assert_template_result(expected, markup, assigns)
+      assert_template_result(expected,markup,assigns)
  end

+
  def test_pause_resume_BIG_offset
-    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5, 6, 7, 8, 9, 0] } }
-    markup = '{%for i in array.items limit:3 %}{{i}}{%endfor%}
+    assigns = {'array' => {'items' => [1,2,3,4,5,6,7,8,9,0]}}
+    markup = %q({%for i in array.items limit:3 %}{{i}}{%endfor%}
      next
      {%for i in array.items offset:continue limit:3 %}{{i}}{%endfor%}
      next
-      {%for i in array.items offset:continue limit:3 offset:1000 %}{{i}}{%endfor%}'
-    expected = '123
+      {%for i in array.items offset:continue limit:3 offset:1000 %}{{i}}{%endfor%})
+    expected = %q(123
      next
      456
      next
-      '
-    assert_template_result(expected, markup, assigns)
+      )
+      assert_template_result(expected,markup,assigns)
  end

  def test_for_with_break
-    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] } }
+    assigns = {'array' => {'items' => [1,2,3,4,5,6,7,8,9,10]}}

    markup = '{% for i in array.items %}{% break %}{% endfor %}'
    expected = ""
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    markup = '{% for i in array.items %}{{ i }}{% break %}{% endfor %}'
    expected = "1"
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    markup = '{% for i in array.items %}{% break %}{{ i }}{% endfor %}'
    expected = ""
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    markup = '{% for i in array.items %}{{ i }}{% if i > 3 %}{% break %}{% endif %}{% endfor %}'
    expected = "1234"
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    # tests to ensure it only breaks out of the local for loop
    # and not all of them.
-    assigns = { 'array' => [[1, 2], [3, 4], [5, 6]] }
-    markup = '{% for item in array %}' \
-               '{% for i in item %}' \
-                 '{% if i == 1 %}' \
-                   '{% break %}' \
-                 '{% endif %}' \
-                 '{{ i }}' \
-               '{% endfor %}' \
+    assigns = {'array' => [[1,2],[3,4],[5,6]] }
+    markup = '{% for item in array %}' +
+               '{% for i in item %}' +
+                 '{% if i == 1 %}' +
+                   '{% break %}' +
+                 '{% endif %}' +
+                 '{{ i }}' +
+               '{% endfor %}' +
             '{% endfor %}'
    expected = '3456'
    assert_template_result(expected, markup, assigns)

    # test break does nothing when unreached
-    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5] } }
+    assigns = {'array' => {'items' => [1,2,3,4,5]}}
    markup = '{% for i in array.items %}{% if i == 9999 %}{% break %}{% endif %}{{ i }}{% endfor %}'
    expected = '12345'
    assert_template_result(expected, markup, assigns)
  end

  def test_for_with_continue
-    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5] } }
+    assigns = {'array' => {'items' => [1,2,3,4,5]}}

    markup = '{% for i in array.items %}{% continue %}{% endfor %}'
    expected = ""
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    markup = '{% for i in array.items %}{{ i }}{% continue %}{% endfor %}'
    expected = "12345"
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    markup = '{% for i in array.items %}{% continue %}{{ i }}{% endfor %}'
    expected = ""
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    markup = '{% for i in array.items %}{% if i > 3 %}{% continue %}{% endif %}{{ i }}{% endfor %}'
    expected = "123"
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    markup = '{% for i in array.items %}{% if i == 3 %}{% continue %}{% else %}{{ i }}{% endif %}{% endfor %}'
    expected = "1245"
-    assert_template_result(expected, markup, assigns)
+    assert_template_result(expected,markup,assigns)

    # tests to ensure it only continues the local for loop and not all of them.
-    assigns = { 'array' => [[1, 2], [3, 4], [5, 6]] }
-    markup = '{% for item in array %}' \
-               '{% for i in item %}' \
-                 '{% if i == 1 %}' \
-                   '{% continue %}' \
-                 '{% endif %}' \
-                 '{{ i }}' \
-               '{% endfor %}' \
+    assigns = {'array' => [[1,2],[3,4],[5,6]] }
+    markup = '{% for item in array %}' +
+               '{% for i in item %}' +
+                 '{% if i == 1 %}' +
+                   '{% continue %}' +
+                 '{% endif %}' +
+                 '{{ i }}' +
+               '{% endfor %}' +
             '{% endfor %}'
    expected = '23456'
    assert_template_result(expected, markup, assigns)

    # test continue does nothing when unreached
-    assigns = { 'array' => { 'items' => [1, 2, 3, 4, 5] } }
+    assigns = {'array' => {'items' => [1,2,3,4,5]}}
    markup = '{% for i in array.items %}{% if i == 9999 %}{% continue %}{% endif %}{{ i }}{% endfor %}'
    expected = '12345'
    assert_template_result(expected, markup, assigns)
@@ -282,45 +277,41 @@ HERE
    # the functionality for backwards compatibility

    assert_template_result('test string',
-      '{%for val in string%}{{val}}{%endfor%}',
-      'string' => "test string")
+                '{%for val in string%}{{val}}{%endfor%}',
+                'string' => "test string")

    assert_template_result('test string',
-      '{%for val in string limit:1%}{{val}}{%endfor%}',
-      'string' => "test string")
+                '{%for val in string limit:1%}{{val}}{%endfor%}',
+                'string' => "test string")

    assert_template_result('val-string-1-1-0-1-0-true-true-test string',
-      '{%for val in string%}' \
-      '{{forloop.name}}-' \
-      '{{forloop.index}}-' \
-      '{{forloop.length}}-' \
-      '{{forloop.index0}}-' \
-      '{{forloop.rindex}}-' \
-      '{{forloop.rindex0}}-' \
-      '{{forloop.first}}-' \
-      '{{forloop.last}}-' \
-      '{{val}}{%endfor%}',
-      'string' => "test string")
+                '{%for val in string%}' +
+                '{{forloop.name}}-' +
+                '{{forloop.index}}-' +
+                '{{forloop.length}}-' +
+                '{{forloop.index0}}-' +
+                '{{forloop.rindex}}-' +
+                '{{forloop.rindex0}}-' +
+                '{{forloop.first}}-' +
+                '{{forloop.last}}-' +
+                '{{val}}{%endfor%}',
+                'string' => "test string")
  end

  def test_for_parentloop_references_parent_loop
    assert_template_result('1.1 1.2 1.3 2.1 2.2 2.3 ',
-      '{% for inner in outer %}{% for k in inner %}' \
-      '{{ forloop.parentloop.index }}.{{ forloop.index }} ' \
-      '{% endfor %}{% endfor %}',
-      'outer' => [[1, 1, 1], [1, 1, 1]])
+                           '{% for inner in outer %}{% for k in inner %}' +
+                           '{{ forloop.parentloop.index }}.{{ forloop.index }} ' +
+                           '{% endfor %}{% endfor %}',
+                           'outer' => [[1, 1, 1], [1, 1, 1]])
  end

  def test_for_parentloop_nil_when_not_present
    assert_template_result('.1 .2 ',
-      '{% for inner in outer %}' \
-      '{{ forloop.parentloop.index }}.{{ forloop.index }} ' \
-      '{% endfor %}',
-      'outer' => [[1, 1, 1], [1, 1, 1]])
-  end
-
-  def test_inner_for_over_empty_input
-    assert_template_result 'oo', '{% for a in (1..2) %}o{% for b in empty %}{% endfor %}{% endfor %}'
+                           '{% for inner in outer %}' +
+                           '{{ forloop.parentloop.index }}.{{ forloop.index }} ' +
+                           '{% endfor %}',
+                           'outer' => [[1, 1, 1], [1, 1, 1]])
  end

  def test_blank_string_not_iterable
@@ -336,7 +327,7 @@ HERE
  def test_spacing_with_variable_naming_in_for_loop
    expected = '12345'
    template = '{% for       item   in   items %}{{item}}{% endfor %}'
-    assigns  = { 'items' => [1, 2, 3, 4, 5] }
+    assigns  = {'items' => [1,2,3,4,5]}
    assert_template_result(expected, template, assigns)
  end

@@ -354,13 +345,13 @@ HERE

    def load_slice(from, to)
      @load_slice_called = true
-      @data[(from..to - 1)]
+      @data[(from..to-1)]
    end
  end

  def test_iterate_with_each_when_no_limit_applied
-    loader = LoaderDrop.new([1, 2, 3, 4, 5])
-    assigns = { 'items' => loader }
+    loader = LoaderDrop.new([1,2,3,4,5])
+    assigns = {'items' => loader}
    expected = '12345'
    template = '{% for item in items %}{{item}}{% endfor %}'
    assert_template_result(expected, template, assigns)
@@ -369,8 +360,8 @@ HERE
  end

  def test_iterate_with_load_slice_when_limit_applied
-    loader = LoaderDrop.new([1, 2, 3, 4, 5])
-    assigns = { 'items' => loader }
+    loader = LoaderDrop.new([1,2,3,4,5])
+    assigns = {'items' => loader}
    expected = '1'
    template = '{% for item in items limit:1 %}{{item}}{% endfor %}'
    assert_template_result(expected, template, assigns)
@@ -379,8 +370,8 @@ HERE
  end

  def test_iterate_with_load_slice_when_limit_and_offset_applied
-    loader = LoaderDrop.new([1, 2, 3, 4, 5])
-    assigns = { 'items' => loader }
+    loader = LoaderDrop.new([1,2,3,4,5])
+    assigns = {'items' => loader}
    expected = '34'
    template = '{% for item in items offset:2 limit:2 %}{{item}}{% endfor %}'
    assert_template_result(expected, template, assigns)
@@ -389,22 +380,12 @@ HERE
  end

  def test_iterate_with_load_slice_returns_same_results_as_without
-    loader = LoaderDrop.new([1, 2, 3, 4, 5])
-    loader_assigns = { 'items' => loader }
-    array_assigns = { 'items' => [1, 2, 3, 4, 5] }
+    loader = LoaderDrop.new([1,2,3,4,5])
+    loader_assigns = {'items' => loader}
+    array_assigns = {'items' => [1,2,3,4,5]}
    expected = '34'
    template = '{% for item in items offset:2 limit:2 %}{{item}}{% endfor %}'
    assert_template_result(expected, template, loader_assigns)
    assert_template_result(expected, template, array_assigns)
  end
-
-  def test_for_cleans_up_registers
-    context = Context.new(ErrorDrop.new)
-
-    assert_raises(StandardError) do
-      Liquid::Template.parse('{% for i in (1..2) %}{{ standard_error }}{% endfor %}').render!(context)
-    end
-
-    assert context.registers[:for_stack].empty?
-  end
 end
--- a/test/integration/tags/if_else_tag_test.rb
+++ b/test/integration/tags/if_else_tag_test.rb
@@ -4,100 +4,101 @@ class IfElseTagTest < Minitest::Test
  include Liquid

  def test_if
-    assert_template_result('  ', ' {% if false %} this text should not go into the output {% endif %} ')
+    assert_template_result('  ',' {% if false %} this text should not go into the output {% endif %} ')
    assert_template_result('  this text should go into the output  ',
-      ' {% if true %} this text should go into the output {% endif %} ')
-    assert_template_result('  you rock ?', '{% if false %} you suck {% endif %} {% if true %} you rock {% endif %}?')
+                           ' {% if true %} this text should go into the output {% endif %} ')
+    assert_template_result('  you rock ?','{% if false %} you suck {% endif %} {% if true %} you rock {% endif %}?')
  end

  def test_literal_comparisons
-    assert_template_result(' NO ', '{% assign v = false %}{% if v %} YES {% else %} NO {% endif %}')
-    assert_template_result(' YES ', '{% assign v = nil %}{% if v == nil %} YES {% else %} NO {% endif %}')
+    assert_template_result(' NO ','{% assign v = false %}{% if v %} YES {% else %} NO {% endif %}')
+    assert_template_result(' YES ','{% assign v = nil %}{% if v == nil %} YES {% else %} NO {% endif %}')
  end

  def test_if_else
-    assert_template_result(' YES ', '{% if false %} NO {% else %} YES {% endif %}')
-    assert_template_result(' YES ', '{% if true %} YES {% else %} NO {% endif %}')
-    assert_template_result(' YES ', '{% if "foo" %} YES {% else %} NO {% endif %}')
+    assert_template_result(' YES ','{% if false %} NO {% else %} YES {% endif %}')
+    assert_template_result(' YES ','{% if true %} YES {% else %} NO {% endif %}')
+    assert_template_result(' YES ','{% if "foo" %} YES {% else %} NO {% endif %}')
  end

  def test_if_boolean
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => true)
+    assert_template_result(' YES ','{% if var %} YES {% endif %}', 'var' => true)
  end

  def test_if_or
-    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', 'a' => true, 'b' => true)
-    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', 'a' => true, 'b' => false)
-    assert_template_result(' YES ', '{% if a or b %} YES {% endif %}', 'a' => false, 'b' => true)
-    assert_template_result('',      '{% if a or b %} YES {% endif %}', 'a' => false, 'b' => false)
+    assert_template_result(' YES ','{% if a or b %} YES {% endif %}', 'a' => true, 'b' => true)
+    assert_template_result(' YES ','{% if a or b %} YES {% endif %}', 'a' => true, 'b' => false)
+    assert_template_result(' YES ','{% if a or b %} YES {% endif %}', 'a' => false, 'b' => true)
+    assert_template_result('',     '{% if a or b %} YES {% endif %}', 'a' => false, 'b' => false)

-    assert_template_result(' YES ', '{% if a or b or c %} YES {% endif %}', 'a' => false, 'b' => false, 'c' => true)
-    assert_template_result('',      '{% if a or b or c %} YES {% endif %}', 'a' => false, 'b' => false, 'c' => false)
+    assert_template_result(' YES ','{% if a or b or c %} YES {% endif %}', 'a' => false, 'b' => false, 'c' => true)
+    assert_template_result('',     '{% if a or b or c %} YES {% endif %}', 'a' => false, 'b' => false, 'c' => false)
  end

  def test_if_or_with_operators
-    assert_template_result(' YES ', '{% if a == true or b == true %} YES {% endif %}', 'a' => true, 'b' => true)
-    assert_template_result(' YES ', '{% if a == true or b == false %} YES {% endif %}', 'a' => true, 'b' => true)
-    assert_template_result('', '{% if a == false or b == false %} YES {% endif %}', 'a' => true, 'b' => true)
+    assert_template_result(' YES ','{% if a == true or b == true %} YES {% endif %}', 'a' => true, 'b' => true)
+    assert_template_result(' YES ','{% if a == true or b == false %} YES {% endif %}', 'a' => true, 'b' => true)
+    assert_template_result('','{% if a == false or b == false %} YES {% endif %}', 'a' => true, 'b' => true)
  end

  def test_comparison_of_strings_containing_and_or_or
    awful_markup = "a == 'and' and b == 'or' and c == 'foo and bar' and d == 'bar or baz' and e == 'foo' and foo and bar"
-    assigns = { 'a' => 'and', 'b' => 'or', 'c' => 'foo and bar', 'd' => 'bar or baz', 'e' => 'foo', 'foo' => true, 'bar' => true }
-    assert_template_result(' YES ', "{% if #{awful_markup} %} YES {% endif %}", assigns)
+    assigns = {'a' => 'and', 'b' => 'or', 'c' => 'foo and bar', 'd' => 'bar or baz', 'e' => 'foo', 'foo' => true, 'bar' => true}
+    assert_template_result(' YES ',"{% if #{awful_markup} %} YES {% endif %}", assigns)
  end

  def test_comparison_of_expressions_starting_with_and_or_or
-    assigns = { 'order' => { 'items_count' => 0 }, 'android' => { 'name' => 'Roy' } }
-    assert_template_result("YES",
-      "{% if android.name == 'Roy' %}YES{% endif %}",
-      assigns)
-    assert_template_result("YES",
-      "{% if order.items_count == 0 %}YES{% endif %}",
-      assigns)
+    assigns = {'order' => {'items_count' => 0}, 'android' => {'name' => 'Roy'}}
+    assert_template_result( "YES",
+                            "{% if android.name == 'Roy' %}YES{% endif %}",
+                            assigns)
+    assert_template_result( "YES",
+                            "{% if order.items_count == 0 %}YES{% endif %}",
+                            assigns)
  end

  def test_if_and
-    assert_template_result(' YES ', '{% if true and true %} YES {% endif %}')
-    assert_template_result('', '{% if false and true %} YES {% endif %}')
-    assert_template_result('', '{% if false and true %} YES {% endif %}')
+    assert_template_result(' YES ','{% if true and true %} YES {% endif %}')
+    assert_template_result('','{% if false and true %} YES {% endif %}')
+    assert_template_result('','{% if false and true %} YES {% endif %}')
  end

+
  def test_hash_miss_generates_false
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => {})
+    assert_template_result('','{% if foo.bar %} NO {% endif %}', 'foo' => {})
  end

  def test_if_from_variable
-    assert_template_result('', '{% if var %} NO {% endif %}', 'var' => false)
-    assert_template_result('', '{% if var %} NO {% endif %}', 'var' => nil)
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => { 'bar' => false })
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => {})
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => nil)
-    assert_template_result('', '{% if foo.bar %} NO {% endif %}', 'foo' => true)
+    assert_template_result('','{% if var %} NO {% endif %}', 'var' => false)
+    assert_template_result('','{% if var %} NO {% endif %}', 'var' => nil)
+    assert_template_result('','{% if foo.bar %} NO {% endif %}', 'foo' => {'bar' => false})
+    assert_template_result('','{% if foo.bar %} NO {% endif %}', 'foo' => {})
+    assert_template_result('','{% if foo.bar %} NO {% endif %}', 'foo' => nil)
+    assert_template_result('','{% if foo.bar %} NO {% endif %}', 'foo' => true)

-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => "text")
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => true)
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => 1)
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => {})
-    assert_template_result(' YES ', '{% if var %} YES {% endif %}', 'var' => [])
-    assert_template_result(' YES ', '{% if "foo" %} YES {% endif %}')
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => true })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => "text" })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => 1 })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => {} })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% endif %}', 'foo' => { 'bar' => [] })
+    assert_template_result(' YES ','{% if var %} YES {% endif %}', 'var' => "text")
+    assert_template_result(' YES ','{% if var %} YES {% endif %}', 'var' => true)
+    assert_template_result(' YES ','{% if var %} YES {% endif %}', 'var' => 1)
+    assert_template_result(' YES ','{% if var %} YES {% endif %}', 'var' => {})
+    assert_template_result(' YES ','{% if var %} YES {% endif %}', 'var' => [])
+    assert_template_result(' YES ','{% if "foo" %} YES {% endif %}')
+    assert_template_result(' YES ','{% if foo.bar %} YES {% endif %}', 'foo' => {'bar' => true})
+    assert_template_result(' YES ','{% if foo.bar %} YES {% endif %}', 'foo' => {'bar' => "text"})
+    assert_template_result(' YES ','{% if foo.bar %} YES {% endif %}', 'foo' => {'bar' => 1 })
+    assert_template_result(' YES ','{% if foo.bar %} YES {% endif %}', 'foo' => {'bar' => {} })
+    assert_template_result(' YES ','{% if foo.bar %} YES {% endif %}', 'foo' => {'bar' => [] })

-    assert_template_result(' YES ', '{% if var %} NO {% else %} YES {% endif %}', 'var' => false)
-    assert_template_result(' YES ', '{% if var %} NO {% else %} YES {% endif %}', 'var' => nil)
-    assert_template_result(' YES ', '{% if var %} YES {% else %} NO {% endif %}', 'var' => true)
-    assert_template_result(' YES ', '{% if "foo" %} YES {% else %} NO {% endif %}', 'var' => "text")
+    assert_template_result(' YES ','{% if var %} NO {% else %} YES {% endif %}', 'var' => false)
+    assert_template_result(' YES ','{% if var %} NO {% else %} YES {% endif %}', 'var' => nil)
+    assert_template_result(' YES ','{% if var %} YES {% else %} NO {% endif %}', 'var' => true)
+    assert_template_result(' YES ','{% if "foo" %} YES {% else %} NO {% endif %}', 'var' => "text")

-    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => { 'bar' => false })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% else %} NO {% endif %}', 'foo' => { 'bar' => true })
-    assert_template_result(' YES ', '{% if foo.bar %} YES {% else %} NO {% endif %}', 'foo' => { 'bar' => "text" })
-    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => { 'notbar' => true })
-    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => {})
-    assert_template_result(' YES ', '{% if foo.bar %} NO {% else %} YES {% endif %}', 'notfoo' => { 'bar' => true })
+    assert_template_result(' YES ','{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => {'bar' => false})
+    assert_template_result(' YES ','{% if foo.bar %} YES {% else %} NO {% endif %}', 'foo' => {'bar' => true})
+    assert_template_result(' YES ','{% if foo.bar %} YES {% else %} NO {% endif %}', 'foo' => {'bar' => "text"})
+    assert_template_result(' YES ','{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => {'notbar' => true})
+    assert_template_result(' YES ','{% if foo.bar %} NO {% else %} YES {% endif %}', 'foo' => {})
+    assert_template_result(' YES ','{% if foo.bar %} NO {% else %} YES {% endif %}', 'notfoo' => {'bar' => true})
  end

  def test_nested_if
@@ -109,30 +110,31 @@ class IfElseTagTest < Minitest::Test
    assert_template_result(' YES ', '{% if true %}{% if true %} YES {% else %} NO {% endif %}{% else %} NO {% endif %}')
    assert_template_result(' YES ', '{% if true %}{% if false %} NO {% else %} YES {% endif %}{% else %} NO {% endif %}')
    assert_template_result(' YES ', '{% if false %}{% if true %} NO {% else %} NONO {% endif %}{% else %} YES {% endif %}')
+
  end

  def test_comparisons_on_null
-    assert_template_result('', '{% if null < 10 %} NO {% endif %}')
-    assert_template_result('', '{% if null <= 10 %} NO {% endif %}')
-    assert_template_result('', '{% if null >= 10 %} NO {% endif %}')
-    assert_template_result('', '{% if null > 10 %} NO {% endif %}')
+    assert_template_result('','{% if null < 10 %} NO {% endif %}')
+    assert_template_result('','{% if null <= 10 %} NO {% endif %}')
+    assert_template_result('','{% if null >= 10 %} NO {% endif %}')
+    assert_template_result('','{% if null > 10 %} NO {% endif %}')

-    assert_template_result('', '{% if 10 < null %} NO {% endif %}')
-    assert_template_result('', '{% if 10 <= null %} NO {% endif %}')
-    assert_template_result('', '{% if 10 >= null %} NO {% endif %}')
-    assert_template_result('', '{% if 10 > null %} NO {% endif %}')
+    assert_template_result('','{% if 10 < null %} NO {% endif %}')
+    assert_template_result('','{% if 10 <= null %} NO {% endif %}')
+    assert_template_result('','{% if 10 >= null %} NO {% endif %}')
+    assert_template_result('','{% if 10 > null %} NO {% endif %}')
  end

  def test_else_if
-    assert_template_result('0', '{% if 0 == 0 %}0{% elsif 1 == 1%}1{% else %}2{% endif %}')
-    assert_template_result('1', '{% if 0 != 0 %}0{% elsif 1 == 1%}1{% else %}2{% endif %}')
-    assert_template_result('2', '{% if 0 != 0 %}0{% elsif 1 != 1%}1{% else %}2{% endif %}')
+    assert_template_result('0','{% if 0 == 0 %}0{% elsif 1 == 1%}1{% else %}2{% endif %}')
+    assert_template_result('1','{% if 0 != 0 %}0{% elsif 1 == 1%}1{% else %}2{% endif %}')
+    assert_template_result('2','{% if 0 != 0 %}0{% elsif 1 != 1%}1{% else %}2{% endif %}')

-    assert_template_result('elsif', '{% if false %}if{% elsif true %}elsif{% endif %}')
+    assert_template_result('elsif','{% if false %}if{% elsif true %}elsif{% endif %}')
  end

  def test_syntax_error_no_variable
-    assert_raises(SyntaxError){ assert_template_result('', '{% if jerry == 1 %}') }
+    assert_raises(SyntaxError){ assert_template_result('', '{% if jerry == 1 %}')}
  end

  def test_syntax_error_no_expression
@@ -154,7 +156,7 @@ class IfElseTagTest < Minitest::Test
    Condition.operators['contains'] = :[]

    assert_template_result('yes',
-      %({% if 'gnomeslab-and-or-liquid' contains 'gnomeslab-and-or-liquid' %}yes{% endif %}))
+                           %({% if 'gnomeslab-and-or-liquid' contains 'gnomeslab-and-or-liquid' %}yes{% endif %}))
  ensure
    Condition.operators['contains'] = original_op
  end
@@ -164,25 +166,4 @@ class IfElseTagTest < Minitest::Test
      assert_template_result('', %({% if 1 or throw or or 1 %}yes{% endif %}))
    end
  end
-
-  def test_multiple_conditions
-    tpl = "{% if a or b and c %}true{% else %}false{% endif %}"
-
-    tests = {
-      [true, true, true] => true,
-      [true, true, false] => true,
-      [true, false, true] => true,
-      [true, false, false] => true,
-      [false, true, true] => true,
-      [false, true, false] => false,
-      [false, false, true] => false,
-      [false, false, false] => false,
-    }
-
-    tests.each do |vals, expected|
-      a, b, c = vals
-      assigns = { 'a' => a, 'b' => b, 'c' => c }
-      assert_template_result expected.to_s, tpl, assigns, assigns.to_s
-    end
-  end
 end
--- a/test/integration/tags/include_tag_test.rb
+++ b/test/integration/tags/include_tag_test.rb
@@ -77,22 +77,23 @@ class IncludeTagTest < Minitest::Test

  def test_include_tag_looks_for_file_system_in_registers_first
    assert_equal 'from OtherFileSystem',
-      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: OtherFileSystem.new })
+      Template.parse("{% include 'pick_a_source' %}").render!({}, :registers => {:file_system => OtherFileSystem.new})
  end

+
  def test_include_tag_with
    assert_template_result "Product: Draft 151cm ",
-      "{% include 'product' with products[0] %}", "products" => [ { 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' } ]
+      "{% include 'product' with products[0] %}", "products" => [ {'title' => 'Draft 151cm'}, {'title' => 'Element 155cm'} ]
  end

  def test_include_tag_with_default_name
    assert_template_result "Product: Draft 151cm ",
-      "{% include 'product' %}", "product" => { 'title' => 'Draft 151cm' }
+      "{% include 'product' %}", "product" => {'title' => 'Draft 151cm'}
  end

  def test_include_tag_for
    assert_template_result "Product: Draft 151cm Product: Element 155cm ",
-      "{% include 'product' for products %}", "products" => [ { 'title' => 'Draft 151cm' }, { 'title' => 'Element 155cm' } ]
+      "{% include 'product' for products %}", "products" => [ {'title' => 'Draft 151cm'}, {'title' => 'Element 155cm'} ]
  end

  def test_include_tag_with_local_variables
@@ -107,7 +108,7 @@ class IncludeTagTest < Minitest::Test
  def test_include_tag_with_multiple_local_variables_from_context
    assert_template_result "Locale: test123 test321",
      "{% include 'locale_variables' echo1: echo1, echo2: more_echos.echo2 %}",
-      'echo1' => 'test123', 'more_echos' => { "echo2" => 'test321' }
+      'echo1' => 'test123', 'more_echos' => { "echo2" => 'test321'}
  end

  def test_included_templates_assigns_variables
@@ -122,13 +123,14 @@ class IncludeTagTest < Minitest::Test

  def test_nested_include_with_variable
    assert_template_result "Product: Draft 151cm details ",
-      "{% include 'nested_product_template' with product %}", "product" => { "title" => 'Draft 151cm' }
+      "{% include 'nested_product_template' with product %}", "product" => {"title" => 'Draft 151cm'}

    assert_template_result "Product: Draft 151cm details Product: Element 155cm details ",
-      "{% include 'nested_product_template' for products %}", "products" => [{ "title" => 'Draft 151cm' }, { "title" => 'Element 155cm' }]
+      "{% include 'nested_product_template' for products %}", "products" => [{"title" => 'Draft 151cm'}, {"title" => 'Element 155cm'}]
  end

  def test_recursively_included_template_does_not_produce_endless_loop
+
    infinite_file_system = Class.new do
      def read_template_file(template_path)
        "-{% include 'loop' %}"
@@ -140,6 +142,7 @@ class IncludeTagTest < Minitest::Test
    assert_raises(Liquid::StackLevelError, SystemStackError) do
      Template.parse("{% include 'loop' %}").render!
    end
+
  end

  def test_dynamically_choosen_template
@@ -147,24 +150,24 @@ class IncludeTagTest < Minitest::Test
    assert_template_result "Test321", "{% include template %}", "template" => 'Test321'

    assert_template_result "Product: Draft 151cm ", "{% include template for product %}",
-      "template" => 'product', 'product' => { 'title' => 'Draft 151cm' }
+      "template" => 'product', 'product' => { 'title' => 'Draft 151cm'}
  end

  def test_include_tag_caches_second_read_of_same_partial
    file_system = CountingFileSystem.new
    assert_equal 'from CountingFileSystemfrom CountingFileSystem',
-      Template.parse("{% include 'pick_a_source' %}{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system })
+      Template.parse("{% include 'pick_a_source' %}{% include 'pick_a_source' %}").render!({}, :registers => {:file_system => file_system})
    assert_equal 1, file_system.count
  end

  def test_include_tag_doesnt_cache_partials_across_renders
    file_system = CountingFileSystem.new
    assert_equal 'from CountingFileSystem',
-      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system })
+      Template.parse("{% include 'pick_a_source' %}").render!({}, :registers => {:file_system => file_system})
    assert_equal 1, file_system.count

    assert_equal 'from CountingFileSystem',
-      Template.parse("{% include 'pick_a_source' %}").render!({}, registers: { file_system: file_system })
+      Template.parse("{% include 'pick_a_source' %}").render!({}, :registers => {:file_system => file_system})
    assert_equal 2, file_system.count
  end

@@ -216,23 +219,4 @@ class IncludeTagTest < Minitest::Test
      assert_equal 'x', Template.parse("{% include template %}", error_mode: :strict, include_options_blacklist: [:error_mode]).render!("template" => '{{ "X" || downcase }}')
    end
  end
-
-  def test_render_raise_argument_error_when_template_is_undefined
-    assert_raises(Liquid::ArgumentError) do
-      template = Liquid::Template.parse('{% include undefined_variable %}')
-      template.render!
-    end
-    assert_raises(Liquid::ArgumentError) do
-      template = Liquid::Template.parse('{% include nil %}')
-      template.render!
-    end
-  end
-
-  def test_including_via_variable_value
-    assert_template_result "from TestFileSystem", "{% assign page = 'pick_a_source' %}{% include page %}"
-
-    assert_template_result "Product: Draft 151cm ", "{% assign page = 'product' %}{% include page %}", "product" => { 'title' => 'Draft 151cm' }
-
-    assert_template_result "Product: Draft 151cm ", "{% assign page = 'product' %}{% include page for foo %}", "foo" => { 'title' => 'Draft 151cm' }
-  end
 end # IncludeTagTest
--- a/test/integration/tags/increment_tag_test.rb
+++ b/test/integration/tags/increment_tag_test.rb
@@ -4,20 +4,21 @@ class IncrementTagTest < Minitest::Test
  include Liquid

  def test_inc
-    assert_template_result('0', '{%increment port %}', {})
-    assert_template_result('0 1', '{%increment port %} {%increment port%}', {})
+    assert_template_result('0','{%increment port %}', {})
+    assert_template_result('0 1','{%increment port %} {%increment port%}', {})
    assert_template_result('0 0 1 2 1',
-      '{%increment port %} {%increment starboard%} ' \
-      '{%increment port %} {%increment port%} ' \
-      '{%increment starboard %}', {})
+                           '{%increment port %} {%increment starboard%} ' +
+                           '{%increment port %} {%increment port%} ' +
+                           '{%increment starboard %}', {})
  end

  def test_dec
-    assert_template_result('9', '{%decrement port %}', { 'port' => 10 })
-    assert_template_result('-1 -2', '{%decrement port %} {%decrement port%}', {})
+    assert_template_result('9','{%decrement port %}', { 'port' => 10})
+    assert_template_result('-1 -2','{%decrement port %} {%decrement port%}', {})
    assert_template_result('1 5 2 2 5',
-      '{%increment port %} {%increment starboard%} ' \
-      '{%increment port %} {%decrement port%} ' \
-      '{%decrement starboard %}', { 'port' => 1, 'starboard' => 5 })
+                           '{%increment port %} {%increment starboard%} ' +
+                           '{%increment port %} {%decrement port%} ' +
+                           '{%decrement starboard %}', { 'port' => 1, 'starboard' => 5 })
  end
+
 end
--- a/test/integration/tags/raw_tag_test.rb
+++ b/test/integration/tags/raw_tag_test.rb
@@ -5,7 +5,7 @@ class RawTagTest < Minitest::Test

  def test_tag_in_raw
    assert_template_result '{% comment %} test {% endcomment %}',
-      '{% raw %}{% comment %} test {% endcomment %}{% endraw %}'
+                           '{% raw %}{% comment %} test {% endcomment %}{% endraw %}'
  end

  def test_output_in_raw
@@ -22,10 +22,4 @@ class RawTagTest < Minitest::Test
    assert_template_result ' test {% raw %} {% endraw %}', '{% raw %} test {% raw %} {% {% endraw %}endraw %}'
    assert_template_result ' Foobar {{ invalid 1', '{% raw %} Foobar {{ invalid {% endraw %}{{ 1 }}'
  end
-
-  def test_invalid_raw
-    assert_match_syntax_error(/tag was never closed/, '{% raw %} foo')
-    assert_match_syntax_error(/Valid syntax/, '{% raw } foo {% endraw %}')
-    assert_match_syntax_error(/Valid syntax/, '{% raw } foo %}{% endraw %}')
-  end
 end
--- a/test/integration/tags/standard_tag_test.rb
+++ b/test/integration/tags/standard_tag_test.rb
@@ -5,116 +5,116 @@ class StandardTagTest < Minitest::Test

  def test_no_transform
    assert_template_result('this text should come out of the template without change...',
-      'this text should come out of the template without change...')
+                           'this text should come out of the template without change...')

-    assert_template_result('blah', 'blah')
-    assert_template_result('<blah>', '<blah>')
-    assert_template_result('|,.:', '|,.:')
-    assert_template_result('', '')
+    assert_template_result('blah','blah')
+    assert_template_result('<blah>','<blah>')
+    assert_template_result('|,.:','|,.:')
+    assert_template_result('','')

-    text = %(this shouldnt see any transformation either but has multiple lines
-              as you can clearly see here ...)
-    assert_template_result(text, text)
+    text = %|this shouldnt see any transformation either but has multiple lines
+              as you can clearly see here ...|
+    assert_template_result(text,text)
  end

  def test_has_a_block_which_does_nothing
-    assert_template_result(%(the comment block should be removed  .. right?),
-      %(the comment block should be removed {%comment%} be gone.. {%endcomment%} .. right?))
+    assert_template_result(%|the comment block should be removed  .. right?|,
+                           %|the comment block should be removed {%comment%} be gone.. {%endcomment%} .. right?|)

-    assert_template_result('', '{%comment%}{%endcomment%}')
-    assert_template_result('', '{%comment%}{% endcomment %}')
-    assert_template_result('', '{% comment %}{%endcomment%}')
-    assert_template_result('', '{% comment %}{% endcomment %}')
-    assert_template_result('', '{%comment%}comment{%endcomment%}')
-    assert_template_result('', '{% comment %}comment{% endcomment %}')
-    assert_template_result('', '{% comment %} 1 {% comment %} 2 {% endcomment %} 3 {% endcomment %}')
+    assert_template_result('','{%comment%}{%endcomment%}')
+    assert_template_result('','{%comment%}{% endcomment %}')
+    assert_template_result('','{% comment %}{%endcomment%}')
+    assert_template_result('','{% comment %}{% endcomment %}')
+    assert_template_result('','{%comment%}comment{%endcomment%}')
+    assert_template_result('','{% comment %}comment{% endcomment %}')
+    assert_template_result('','{% comment %} 1 {% comment %} 2 {% endcomment %} 3 {% endcomment %}')

-    assert_template_result('', '{%comment%}{%blabla%}{%endcomment%}')
-    assert_template_result('', '{% comment %}{% blabla %}{% endcomment %}')
-    assert_template_result('', '{%comment%}{% endif %}{%endcomment%}')
-    assert_template_result('', '{% comment %}{% endwhatever %}{% endcomment %}')
-    assert_template_result('', '{% comment %}{% raw %} {{%%%%}}  }} { {% endcomment %} {% comment {% endraw %} {% endcomment %}')
+    assert_template_result('','{%comment%}{%blabla%}{%endcomment%}')
+    assert_template_result('','{% comment %}{% blabla %}{% endcomment %}')
+    assert_template_result('','{%comment%}{% endif %}{%endcomment%}')
+    assert_template_result('','{% comment %}{% endwhatever %}{% endcomment %}')
+    assert_template_result('','{% comment %}{% raw %} {{%%%%}}  }} { {% endcomment %} {% comment {% endraw %} {% endcomment %}')

-    assert_template_result('foobar', 'foo{%comment%}comment{%endcomment%}bar')
-    assert_template_result('foobar', 'foo{% comment %}comment{% endcomment %}bar')
-    assert_template_result('foobar', 'foo{%comment%} comment {%endcomment%}bar')
-    assert_template_result('foobar', 'foo{% comment %} comment {% endcomment %}bar')
+    assert_template_result('foobar','foo{%comment%}comment{%endcomment%}bar')
+    assert_template_result('foobar','foo{% comment %}comment{% endcomment %}bar')
+    assert_template_result('foobar','foo{%comment%} comment {%endcomment%}bar')
+    assert_template_result('foobar','foo{% comment %} comment {% endcomment %}bar')

-    assert_template_result('foo  bar', 'foo {%comment%} {%endcomment%} bar')
-    assert_template_result('foo  bar', 'foo {%comment%}comment{%endcomment%} bar')
-    assert_template_result('foo  bar', 'foo {%comment%} comment {%endcomment%} bar')
+    assert_template_result('foo  bar','foo {%comment%} {%endcomment%} bar')
+    assert_template_result('foo  bar','foo {%comment%}comment{%endcomment%} bar')
+    assert_template_result('foo  bar','foo {%comment%} comment {%endcomment%} bar')

-    assert_template_result('foobar', 'foo{%comment%}
+    assert_template_result('foobar','foo{%comment%}
                                     {%endcomment%}bar')
  end

  def test_hyphenated_assign
-    assigns = { 'a-b' => '1' }
+    assigns = {'a-b' => '1' }
    assert_template_result('a-b:1 a-b:2', 'a-b:{{a-b}} {%assign a-b = 2 %}a-b:{{a-b}}', assigns)
  end

  def test_assign_with_colon_and_spaces
-    assigns = { 'var' => { 'a:b c' => { 'paged' => '1' } } }
+    assigns = {'var' => {'a:b c' => {'paged' => '1' }}}
    assert_template_result('var2: 1', '{%assign var2 = var["a:b c"].paged %}var2: {{var2}}', assigns)
  end

  def test_capture
-    assigns = { 'var' => 'content' }
+    assigns = {'var' => 'content' }
    assert_template_result('content foo content foo ',
-      '{{ var2 }}{% capture var2 %}{{ var }} foo {% endcapture %}{{ var2 }}{{ var2 }}',
-      assigns)
+                           '{{ var2 }}{% capture var2 %}{{ var }} foo {% endcapture %}{{ var2 }}{{ var2 }}',
+                           assigns)
  end

  def test_capture_detects_bad_syntax
    assert_raises(SyntaxError) do
      assert_template_result('content foo content foo ',
-        '{{ var2 }}{% capture %}{{ var }} foo {% endcapture %}{{ var2 }}{{ var2 }}',
-        { 'var' => 'content' })
+                             '{{ var2 }}{% capture %}{{ var }} foo {% endcapture %}{{ var2 }}{{ var2 }}',
+                             {'var' => 'content' })
    end
  end

  def test_case
-    assigns = { 'condition' => 2 }
+    assigns = {'condition' => 2 }
    assert_template_result(' its 2 ',
-      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns)
+                           '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
+                           assigns)

-    assigns = { 'condition' => 1 }
+    assigns = {'condition' => 1 }
    assert_template_result(' its 1 ',
-      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns)
+                           '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
+                           assigns)

-    assigns = { 'condition' => 3 }
+    assigns = {'condition' => 3 }
    assert_template_result('',
-      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns)
+                           '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
+                           assigns)

-    assigns = { 'condition' => "string here" }
+    assigns = {'condition' => "string here" }
    assert_template_result(' hit ',
-      '{% case condition %}{% when "string here" %} hit {% endcase %}',
-      assigns)
+                           '{% case condition %}{% when "string here" %} hit {% endcase %}',
+                           assigns)

-    assigns = { 'condition' => "bad string here" }
+    assigns = {'condition' => "bad string here" }
    assert_template_result('',
-      '{% case condition %}{% when "string here" %} hit {% endcase %}',\
-      assigns)
+                           '{% case condition %}{% when "string here" %} hit {% endcase %}',\
+                           assigns)
  end

  def test_case_with_else
-    assigns = { 'condition' => 5 }
+    assigns = {'condition' => 5 }
    assert_template_result(' hit ',
-      '{% case condition %}{% when 5 %} hit {% else %} else {% endcase %}',
-      assigns)
+                           '{% case condition %}{% when 5 %} hit {% else %} else {% endcase %}',
+                           assigns)

-    assigns = { 'condition' => 6 }
+    assigns = {'condition' => 6 }
    assert_template_result(' else ',
-      '{% case condition %}{% when 5 %} hit {% else %} else {% endcase %}',
-      assigns)
+                           '{% case condition %}{% when 5 %} hit {% else %} else {% endcase %}',
+                           assigns)

-    assigns = { 'condition' => 6 }
+    assigns = {'condition' => 6 }
    assert_template_result(' else ',
-      '{% case condition %} {% when 5 %} hit {% else %} else {% endcase %}',
-      assigns)
+                           '{% case condition %} {% when 5 %} hit {% else %} else {% endcase %}',
+                           assigns)
  end

  def test_case_on_size
@@ -128,87 +128,87 @@ class StandardTagTest < Minitest::Test

  def test_case_on_size_with_else
    assert_template_result('else',
-      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      'a' => [])
+                           '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
+                           'a' => [])

    assert_template_result('1',
-      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      'a' => [1])
+                           '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
+                           'a' => [1])

    assert_template_result('2',
-      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      'a' => [1, 1])
+                           '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
+                           'a' => [1, 1])

    assert_template_result('else',
-      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      'a' => [1, 1, 1])
+                           '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
+                           'a' => [1, 1, 1])

    assert_template_result('else',
-      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      'a' => [1, 1, 1, 1])
+                           '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
+                           'a' => [1, 1, 1, 1])

    assert_template_result('else',
-      '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
-      'a' => [1, 1, 1, 1, 1])
+                           '{% case a.size %}{% when 1 %}1{% when 2 %}2{% else %}else{% endcase %}',
+                           'a' => [1, 1, 1, 1, 1])
  end

  def test_case_on_length_with_else
    assert_template_result('else',
-      '{% case a.empty? %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
-      {})
+                           '{% case a.empty? %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
+                           {})

    assert_template_result('false',
-      '{% case false %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
-      {})
+                           '{% case false %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
+                           {})

    assert_template_result('true',
-      '{% case true %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
-      {})
+                           '{% case true %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
+                           {})

    assert_template_result('else',
-      '{% case NULL %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
-      {})
+                           '{% case NULL %}{% when true %}true{% when false %}false{% else %}else{% endcase %}',
+                           {})
  end

  def test_assign_from_case
    # Example from the shopify forums
-    code = "{% case collection.handle %}{% when 'menswear-jackets' %}{% assign ptitle = 'menswear' %}{% when 'menswear-t-shirts' %}{% assign ptitle = 'menswear' %}{% else %}{% assign ptitle = 'womenswear' %}{% endcase %}{{ ptitle }}"
+    code = %q({% case collection.handle %}{% when 'menswear-jackets' %}{% assign ptitle = 'menswear' %}{% when 'menswear-t-shirts' %}{% assign ptitle = 'menswear' %}{% else %}{% assign ptitle = 'womenswear' %}{% endcase %}{{ ptitle }})
    template = Liquid::Template.parse(code)
-    assert_equal "menswear",   template.render!("collection" => { 'handle' => 'menswear-jackets' })
-    assert_equal "menswear",   template.render!("collection" => { 'handle' => 'menswear-t-shirts' })
-    assert_equal "womenswear", template.render!("collection" => { 'handle' => 'x' })
-    assert_equal "womenswear", template.render!("collection" => { 'handle' => 'y' })
-    assert_equal "womenswear", template.render!("collection" => { 'handle' => 'z' })
+    assert_equal "menswear",   template.render!("collection" => {'handle' => 'menswear-jackets'})
+    assert_equal "menswear",   template.render!("collection" => {'handle' => 'menswear-t-shirts'})
+    assert_equal "womenswear", template.render!("collection" => {'handle' => 'x'})
+    assert_equal "womenswear", template.render!("collection" => {'handle' => 'y'})
+    assert_equal "womenswear", template.render!("collection" => {'handle' => 'z'})
  end

  def test_case_when_or
    code = '{% case condition %}{% when 1 or 2 or 3 %} its 1 or 2 or 3 {% when 4 %} its 4 {% endcase %}'
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 1 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 2 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 3 })
-    assert_template_result(' its 4 ', code, { 'condition' => 4 })
-    assert_template_result('', code, { 'condition' => 5 })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 1 })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 2 })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 3 })
+    assert_template_result(' its 4 ', code, {'condition' => 4 })
+    assert_template_result('', code, {'condition' => 5 })

    code = '{% case condition %}{% when 1 or "string" or null %} its 1 or 2 or 3 {% when 4 %} its 4 {% endcase %}'
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 1 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 'string' })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => nil })
-    assert_template_result('', code, { 'condition' => 'something else' })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 1 })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 'string' })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => nil })
+    assert_template_result('', code, {'condition' => 'something else' })
  end

  def test_case_when_comma
    code = '{% case condition %}{% when 1, 2, 3 %} its 1 or 2 or 3 {% when 4 %} its 4 {% endcase %}'
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 1 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 2 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 3 })
-    assert_template_result(' its 4 ', code, { 'condition' => 4 })
-    assert_template_result('', code, { 'condition' => 5 })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 1 })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 2 })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 3 })
+    assert_template_result(' its 4 ', code, {'condition' => 4 })
+    assert_template_result('', code, {'condition' => 5 })

    code = '{% case condition %}{% when 1, "string", null %} its 1 or 2 or 3 {% when 4 %} its 4 {% endcase %}'
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 1 })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => 'string' })
-    assert_template_result(' its 1 or 2 or 3 ', code, { 'condition' => nil })
-    assert_template_result('', code, { 'condition' => 'something else' })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 1 })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => 'string' })
+    assert_template_result(' its 1 or 2 or 3 ', code, {'condition' => nil })
+    assert_template_result('', code, {'condition' => 'something else' })
  end

  def test_assign
@@ -236,14 +236,15 @@ class StandardTagTest < Minitest::Test
    assert_raises(SyntaxError) do
      assert_template_result('',  '{% case false %}{% huh %}true{% endcase %}', {})
    end
+
  end

  def test_cycle
-    assert_template_result('one', '{%cycle "one", "two"%}')
-    assert_template_result('one two', '{%cycle "one", "two"%} {%cycle "one", "two"%}')
-    assert_template_result(' two', '{%cycle "", "two"%} {%cycle "", "two"%}')
+    assert_template_result('one','{%cycle "one", "two"%}')
+    assert_template_result('one two','{%cycle "one", "two"%} {%cycle "one", "two"%}')
+    assert_template_result(' two','{%cycle "", "two"%} {%cycle "", "two"%}')

-    assert_template_result('one two one', '{%cycle "one", "two"%} {%cycle "one", "two"%} {%cycle "one", "two"%}')
+    assert_template_result('one two one','{%cycle "one", "two"%} {%cycle "one", "two"%} {%cycle "one", "two"%}')

    assert_template_result('text-align: left text-align: right',
      '{%cycle "text-align: left", "text-align: right" %} {%cycle "text-align: left", "text-align: right"%}')
@@ -260,18 +261,18 @@ class StandardTagTest < Minitest::Test
  end

  def test_multiple_named_cycles_with_names_from_context
-    assigns = { "var1" => 1, "var2" => 2 }
+    assigns = {"var1" => 1, "var2" => 2 }
    assert_template_result('one one two two one one',
      '{%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %} {%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %} {%cycle var1: "one", "two" %} {%cycle var2: "one", "two" %}', assigns)
  end

  def test_size_of_array
-    assigns = { "array" => [1, 2, 3, 4] }
+    assigns = {"array" => [1,2,3,4]}
    assert_template_result('array has 4 elements', "array has {{ array.size }} elements", assigns)
  end

  def test_size_of_hash
-    assigns = { "hash" => { a: 1, b: 2, c: 3, d: 4 } }
+    assigns = {"hash" => {:a => 1, :b => 2, :c=> 3, :d => 4}}
    assert_template_result('hash has 4 elements', "hash has {{ hash.size }} elements", assigns)
  end

@@ -283,11 +284,11 @@ class StandardTagTest < Minitest::Test
  end

  def test_ifchanged
-    assigns = { 'array' => [ 1, 1, 2, 2, 3, 3] }
-    assert_template_result('123', '{%for item in array%}{%ifchanged%}{{item}}{% endifchanged %}{%endfor%}', assigns)
+    assigns = {'array' => [ 1, 1, 2, 2, 3, 3] }
+    assert_template_result('123','{%for item in array%}{%ifchanged%}{{item}}{% endifchanged %}{%endfor%}',assigns)

-    assigns = { 'array' => [ 1, 1, 1, 1] }
-    assert_template_result('1', '{%for item in array%}{%ifchanged%}{{item}}{% endifchanged %}{%endfor%}', assigns)
+    assigns = {'array' => [ 1, 1, 1, 1] }
+    assert_template_result('1','{%for item in array%}{%ifchanged%}{{item}}{% endifchanged %}{%endfor%}',assigns)
  end

  def test_multiline_tag
--- a/test/integration/tags/statements_test.rb
+++ b/test/integration/tags/statements_test.rb
@@ -37,6 +37,7 @@ class StatementsTest < Minitest::Test
    text = ' {% if null <= 0 %} true {% else %} false {% endif %} '
    assert_template_result '  false  ', text

+
    text = ' {% if 0 <= null %} true {% else %} false {% endif %} '
    assert_template_result '  false  ', text
  end
@@ -71,17 +72,18 @@ class StatementsTest < Minitest::Test
    assert_template_result '  true  ', text, 'var' => 'hello there!'
  end

+
  def test_var_and_long_string_are_equal_backwards
    text = " {% if 'hello there!' == var %} true {% else %} false {% endif %} "
    assert_template_result '  true  ', text, 'var' => 'hello there!'
  end

-  # def test_is_nil
+  #def test_is_nil
  #  text = %| {% if var != nil %} true {% else %} false {% end %} |
  #  @template.assigns = { 'var' => 'hello there!'}
  #  expected = %|  true  |
  #  assert_equal expected, @template.parse(text)
-  # end
+  #end

  def test_is_collection_empty
    text = ' {% if array == empty %} true {% else %} false {% endif %} '
@@ -90,7 +92,7 @@ class StatementsTest < Minitest::Test

  def test_is_not_collection_empty
    text = ' {% if array == empty %} true {% else %} false {% endif %} '
-    assert_template_result '  false  ', text, 'array' => [1, 2, 3]
+    assert_template_result '  false  ', text, 'array' => [1,2,3]
  end

  def test_nil
--- a/test/integration/tags/table_row_test.rb
+++ b/test/integration/tags/table_row_test.rb
@@ -16,49 +16,48 @@ class TableRowTest < Minitest::Test
  end

  def test_table_row
+
    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
-      '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
-      'numbers' => [1, 2, 3, 4, 5, 6])
+                           '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
+                           'numbers' => [1,2,3,4,5,6])

    assert_template_result("<tr class=\"row1\">\n</tr>\n",
-      '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
-      'numbers' => [])
+                           '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
+                           'numbers' => [])
  end

  def test_table_row_with_different_cols
    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td><td class=\"col4\"> 4 </td><td class=\"col5\"> 5 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 6 </td></tr>\n",
-      '{% tablerow n in numbers cols:5%} {{n}} {% endtablerow %}',
-      'numbers' => [1, 2, 3, 4, 5, 6])
+                           '{% tablerow n in numbers cols:5%} {{n}} {% endtablerow %}',
+                           'numbers' => [1,2,3,4,5,6])
+
  end

  def test_table_col_counter
    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n<tr class=\"row2\"><td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n<tr class=\"row3\"><td class=\"col1\">1</td><td class=\"col2\">2</td></tr>\n",
-      '{% tablerow n in numbers cols:2%}{{tablerowloop.col}}{% endtablerow %}',
-      'numbers' => [1, 2, 3, 4, 5, 6])
+                           '{% tablerow n in numbers cols:2%}{{tablerowloop.col}}{% endtablerow %}',
+                           'numbers' => [1,2,3,4,5,6])
  end

  def test_quoted_fragment
    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
-      "{% tablerow n in collections.frontpage cols:3%} {{n}} {% endtablerow %}",
-      'collections' => { 'frontpage' => [1, 2, 3, 4, 5, 6] })
+                           "{% tablerow n in collections.frontpage cols:3%} {{n}} {% endtablerow %}",
+                           'collections' => {'frontpage' => [1,2,3,4,5,6]})
    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
-      "{% tablerow n in collections['frontpage'] cols:3%} {{n}} {% endtablerow %}",
-      'collections' => { 'frontpage' => [1, 2, 3, 4, 5, 6] })
+                           "{% tablerow n in collections['frontpage'] cols:3%} {{n}} {% endtablerow %}",
+                           'collections' => {'frontpage' => [1,2,3,4,5,6]})
+
  end

  def test_enumerable_drop
    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
-      '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
-      'numbers' => ArrayDrop.new([1, 2, 3, 4, 5, 6]))
+                           '{% tablerow n in numbers cols:3%} {{n}} {% endtablerow %}',
+                           'numbers' => ArrayDrop.new([1,2,3,4,5,6]))
  end

  def test_offset_and_limit
    assert_template_result("<tr class=\"row1\">\n<td class=\"col1\"> 1 </td><td class=\"col2\"> 2 </td><td class=\"col3\"> 3 </td></tr>\n<tr class=\"row2\"><td class=\"col1\"> 4 </td><td class=\"col2\"> 5 </td><td class=\"col3\"> 6 </td></tr>\n",
-      '{% tablerow n in numbers cols:3 offset:1 limit:6%} {{n}} {% endtablerow %}',
-      'numbers' => [0, 1, 2, 3, 4, 5, 6, 7])
-  end
-
-  def test_blank_string_not_iterable
-    assert_template_result("<tr class=\"row1\">\n</tr>\n", "{% tablerow char in characters cols:3 %}I WILL NOT BE OUTPUT{% endtablerow %}", 'characters' => '')
+                           '{% tablerow n in numbers cols:3 offset:1 limit:6%} {{n}} {% endtablerow %}',
+                           'numbers' => [0,1,2,3,4,5,6,7])
  end
 end
--- a/test/integration/tags/unless_else_tag_test.rb
+++ b/test/integration/tags/unless_else_tag_test.rb
@@ -4,16 +4,16 @@ class UnlessElseTagTest < Minitest::Test
  include Liquid

  def test_unless
-    assert_template_result('  ', ' {% unless true %} this text should not go into the output {% endunless %} ')
+    assert_template_result('  ',' {% unless true %} this text should not go into the output {% endunless %} ')
    assert_template_result('  this text should go into the output  ',
-      ' {% unless false %} this text should go into the output {% endunless %} ')
-    assert_template_result('  you rock ?', '{% unless true %} you suck {% endunless %} {% unless false %} you rock {% endunless %}?')
+                           ' {% unless false %} this text should go into the output {% endunless %} ')
+    assert_template_result('  you rock ?','{% unless true %} you suck {% endunless %} {% unless false %} you rock {% endunless %}?')
  end

  def test_unless_else
-    assert_template_result(' YES ', '{% unless true %} NO {% else %} YES {% endunless %}')
-    assert_template_result(' YES ', '{% unless false %} YES {% else %} NO {% endunless %}')
-    assert_template_result(' YES ', '{% unless "foo" %} NO {% else %} YES {% endunless %}')
+    assert_template_result(' YES ','{% unless true %} NO {% else %} YES {% endunless %}')
+    assert_template_result(' YES ','{% unless false %} YES {% else %} NO {% endunless %}')
+    assert_template_result(' YES ','{% unless "foo" %} NO {% else %} YES {% endunless %}')
  end

  def test_unless_in_loop
--- a/test/integration/template_test.rb
+++ b/test/integration/template_test.rb
@@ -2,7 +2,7 @@ require 'test_helper'
 require 'timeout'

 class TemplateContextDrop < Liquid::Drop
-  def liquid_method_missing(method)
+  def before_method(method)
    method
  end

@@ -15,10 +15,12 @@ class TemplateContextDrop < Liquid::Drop
  end
 end

-class SomethingWithLength < Liquid::Drop
+class SomethingWithLength
  def length
    nil
  end
+
+  liquid_methods :length
 end

 class ErroneousDrop < Liquid::Drop
@@ -27,12 +29,6 @@ class ErroneousDrop < Liquid::Drop
  end
 end

-class DropWithUndefinedMethod < Liquid::Drop
-  def foo
-    'foo'
-  end
-end
-
 class TemplateTest < Minitest::Test
  include Liquid

@@ -49,7 +45,7 @@ class TemplateTest < Minitest::Test
    end

    t = Template.parse(str)
-    assert_equal [], Timeout.timeout(1) { t.warnings }
+    assert_equal [], Timeout::timeout(1) { t.warnings }
  end

  def test_instance_assigns_persist_on_same_template_parsing_between_renders
@@ -79,7 +75,7 @@ class TemplateTest < Minitest::Test

  def test_lambda_is_called_once_from_persistent_assigns_over_multiple_parses_and_renders
    t = Template.new
-    t.assigns['number'] = -> { @global ||= 0; @global += 1 }
+    t.assigns['number'] = lambda { @global ||= 0; @global += 1 }
    assert_equal '1', t.parse("{{number}}").render!
    assert_equal '1', t.parse("{{number}}").render!
    assert_equal '1', t.render!
@@ -88,7 +84,7 @@ class TemplateTest < Minitest::Test

  def test_lambda_is_called_once_from_custom_assigns_over_multiple_parses_and_renders
    t = Template.new
-    assigns = { 'number' => -> { @global ||= 0; @global += 1 } }
+    assigns = {'number' => lambda { @global ||= 0; @global += 1 }}
    assert_equal '1', t.parse("{{number}}").render!(assigns)
    assert_equal '1', t.parse("{{number}}").render!(assigns)
    assert_equal '1', t.render!(assigns)
@@ -104,62 +100,51 @@ class TemplateTest < Minitest::Test
  def test_resource_limits_render_length
    t = Template.parse("0123456789")
    t.resource_limits.render_length_limit = 5
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    assert t.resource_limits.reached?

    t.resource_limits.render_length_limit = 10
-    assert_equal "0123456789", t.render!
+    assert_equal "0123456789", t.render!()
    refute_nil t.resource_limits.render_length
  end

  def test_resource_limits_render_score
    t = Template.parse("{% for a in (1..10) %} {% for a in (1..10) %} foo {% endfor %} {% endfor %}")
    t.resource_limits.render_score_limit = 50
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    assert t.resource_limits.reached?

    t = Template.parse("{% for a in (1..100) %} foo {% endfor %}")
    t.resource_limits.render_score_limit = 50
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    assert t.resource_limits.reached?

    t.resource_limits.render_score_limit = 200
-    assert_equal (" foo " * 100), t.render!
+    assert_equal (" foo " * 100), t.render!()
    refute_nil t.resource_limits.render_score
  end

  def test_resource_limits_assign_score
    t = Template.parse("{% assign foo = 42 %}{% assign bar = 23 %}")
    t.resource_limits.assign_score_limit = 1
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    assert t.resource_limits.reached?

    t.resource_limits.assign_score_limit = 2
-    assert_equal "", t.render!
+    assert_equal "", t.render!()
    refute_nil t.resource_limits.assign_score
  end

-  def test_resource_limits_assign_score_nested
-    t = Template.parse("{% assign foo = 'aaaa' | reverse %}")
-
-    t.resource_limits.assign_score_limit = 3
-    assert_equal "Liquid error: Memory limits exceeded", t.render
-    assert t.resource_limits.reached?
-
-    t.resource_limits.assign_score_limit = 5
-    assert_equal "", t.render!
-  end
-
  def test_resource_limits_aborts_rendering_after_first_error
    t = Template.parse("{% for a in (1..100) %} foo1 {% endfor %} bar {% for a in (1..100) %} foo2 {% endfor %}")
    t.resource_limits.render_score_limit = 50
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    assert t.resource_limits.reached?
  end

  def test_resource_limits_hash_in_template_gets_updated_even_if_no_limits_are_set
    t = Template.parse("{% for a in (1..100) %} {% assign foo = 1 %} {% endfor %}")
-    t.render!
+    t.render!()
    assert t.resource_limits.assign_score > 0
    assert t.resource_limits.render_score > 0
    assert t.resource_limits.render_length > 0
@@ -168,23 +153,23 @@ class TemplateTest < Minitest::Test
  def test_render_length_persists_between_blocks
    t = Template.parse("{% if true %}aaaa{% endif %}")
    t.resource_limits.render_length_limit = 7
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    t.resource_limits.render_length_limit = 8
-    assert_equal "aaaa", t.render
+    assert_equal "aaaa", t.render()

    t = Template.parse("{% if true %}aaaa{% endif %}{% if true %}bbb{% endif %}")
    t.resource_limits.render_length_limit = 13
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    t.resource_limits.render_length_limit = 14
-    assert_equal "aaaabbb", t.render
+    assert_equal "aaaabbb", t.render()

    t = Template.parse("{% if true %}a{% endif %}{% if true %}b{% endif %}{% if true %}a{% endif %}{% if true %}b{% endif %}{% if true %}a{% endif %}{% if true %}b{% endif %}")
    t.resource_limits.render_length_limit = 5
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    t.resource_limits.render_length_limit = 11
-    assert_equal "Liquid error: Memory limits exceeded", t.render
+    assert_equal "Liquid error: Memory limits exceeded", t.render()
    t.resource_limits.render_length_limit = 12
-    assert_equal "ababab", t.render
+    assert_equal "ababab", t.render()
  end

  def test_default_resource_limits_unaffected_by_render_with_context
@@ -206,7 +191,7 @@ class TemplateTest < Minitest::Test
  end

  def test_render_bang_force_rethrow_errors_on_passed_context
-    context = Context.new({ 'drop' => ErroneousDrop.new })
+    context = Context.new({'drop' => ErroneousDrop.new})
    t = Template.new.parse('{{ drop.bad_method }}')

    e = assert_raises RuntimeError do
@@ -215,109 +200,17 @@ class TemplateTest < Minitest::Test
    assert_equal 'ruby error in drop', e.message
  end

-  def test_exception_renderer_that_returns_string
+  def test_exception_handler_doesnt_reraise_if_it_returns_false
    exception = nil
-    handler = ->(e) { exception = e; '<!-- error -->' }
-
-    output = Template.parse("{{ 1 | divided_by: 0 }}").render({}, exception_renderer: handler)
-
-    assert exception.is_a?(Liquid::ZeroDivisionError)
-    assert_equal '<!-- error -->', output
+    Template.parse("{{ 1 | divided_by: 0 }}").render({}, exception_handler: ->(e) { exception = e; false })
+    assert exception.is_a?(ZeroDivisionError)
  end

-  def test_exception_renderer_that_raises
+  def test_exception_handler_does_reraise_if_it_returns_true
    exception = nil
-    assert_raises(Liquid::ZeroDivisionError) do
-      Template.parse("{{ 1 | divided_by: 0 }}").render({}, exception_renderer: ->(e) { exception = e; raise })
+    assert_raises(ZeroDivisionError) do
+      Template.parse("{{ 1 | divided_by: 0 }}").render({}, exception_handler: ->(e) { exception = e; true })
    end
-    assert exception.is_a?(Liquid::ZeroDivisionError)
-  end
-
-  def test_global_filter_option_on_render
-    global_filter_proc = ->(output) { "#{output} filtered" }
-    rendered_template = Template.parse("{{name}}").render({ "name" => "bob" }, global_filter: global_filter_proc)
-
-    assert_equal 'bob filtered', rendered_template
-  end
-
-  def test_global_filter_option_when_native_filters_exist
-    global_filter_proc = ->(output) { "#{output} filtered" }
-    rendered_template = Template.parse("{{name | upcase}}").render({ "name" => "bob" }, global_filter: global_filter_proc)
-
-    assert_equal 'BOB filtered', rendered_template
-  end
-
-  def test_undefined_variables
-    t = Template.parse("{{x}} {{y}} {{z.a}} {{z.b}} {{z.c.d}}")
-    result = t.render({ 'x' => 33, 'z' => { 'a' => 32, 'c' => { 'e' => 31 } } }, { strict_variables: true })
-
-    assert_equal '33  32  ', result
-    assert_equal 3, t.errors.count
-    assert_instance_of Liquid::UndefinedVariable, t.errors[0]
-    assert_equal 'Liquid error: undefined variable y', t.errors[0].message
-    assert_instance_of Liquid::UndefinedVariable, t.errors[1]
-    assert_equal 'Liquid error: undefined variable b', t.errors[1].message
-    assert_instance_of Liquid::UndefinedVariable, t.errors[2]
-    assert_equal 'Liquid error: undefined variable d', t.errors[2].message
-  end
-
-  def test_undefined_variables_raise
-    t = Template.parse("{{x}} {{y}} {{z.a}} {{z.b}} {{z.c.d}}")
-
-    assert_raises UndefinedVariable do
-      t.render!({ 'x' => 33, 'z' => { 'a' => 32, 'c' => { 'e' => 31 } } }, { strict_variables: true })
-    end
-  end
-
-  def test_undefined_drop_methods
-    d = DropWithUndefinedMethod.new
-    t = Template.new.parse('{{ foo }} {{ woot }}')
-    result = t.render(d, { strict_variables: true })
-
-    assert_equal 'foo ', result
-    assert_equal 1, t.errors.count
-    assert_instance_of Liquid::UndefinedDropMethod, t.errors[0]
-  end
-
-  def test_undefined_drop_methods_raise
-    d = DropWithUndefinedMethod.new
-    t = Template.new.parse('{{ foo }} {{ woot }}')
-
-    assert_raises UndefinedDropMethod do
-      t.render!(d, { strict_variables: true })
-    end
-  end
-
-  def test_undefined_filters
-    t = Template.parse("{{a}} {{x | upcase | somefilter1 | somefilter2 | somefilter3}}")
-    filters = Module.new do
-      def somefilter3(v)
-        "-#{v}-"
-      end
-    end
-    result = t.render({ 'a' => 123, 'x' => 'foo' }, { filters: [filters], strict_filters: true })
-
-    assert_equal '123 ', result
-    assert_equal 1, t.errors.count
-    assert_instance_of Liquid::UndefinedFilter, t.errors[0]
-    assert_equal 'Liquid error: undefined filter somefilter1', t.errors[0].message
-  end
-
-  def test_undefined_filters_raise
-    t = Template.parse("{{x | somefilter1 | upcase | somefilter2}}")
-
-    assert_raises UndefinedFilter do
-      t.render!({ 'x' => 'foo' }, { strict_filters: true })
-    end
-  end
-
-  def test_using_range_literal_works_as_expected
-    t = Template.parse("{% assign foo = (x..y) %}{{ foo }}")
-    result = t.render({ 'x' => 1, 'y' => 5 })
-    assert_equal '1..5', result
-
-    t = Template.parse("{% assign nums = (x..y) %}{% for num in nums %}{{ num }}{% endfor %}")
-    result = t.render({ 'x' => 1, 'y' => 5 })
-    assert_equal '12345', result
+    assert exception.is_a?(ZeroDivisionError)
  end
 end
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
Lourens Naudé	e853bf5b84	Also dump object distribution	2015-05-06 10:45:20 -04:00
Lourens Naudé	27248f1eb1	Lazy init context errors and interrupts to prevent excess allocation	2015-05-05 23:40:52 -04:00
Lourens Naudé	174839fbef	Reuse filters array during variable parsing	2015-05-05 23:30:05 -04:00
Lourens Naudé	01a86728f2	Remove needless intermediate local var in VariableLookup#initialize	2015-05-05 23:21:28 -04:00
Lourens Naudé	0e38f88b58	Recycle the array buffer in BlockBody#render	2015-05-05 23:02:08 -04:00
Lourens Naudé	5a48edae6a	Introduce support for memory usage profiles	2015-05-05 23:00:28 -04:00