Implement tokenization in a C extension.

.gitignore

@@ -6,3 +6,7 @@ pkg
 .rvmrc
 .ruby-version
 Gemfile.lock
+/ext/liquid/Makefile
+*.o
+*.bundle
+/tmp

.rubocop.yml

@@ -1,92 +0,0 @@
-inherit_from: ./.rubocop_todo.yml
-
-AllCops:
-  Exclude:
-    - 'performance/shopify/*'
-
-Lint/AssignmentInCondition:
-  Enabled: false
-
-Lint/UnusedBlockArgument:
-  Enabled: false
-
-Lint/EndAlignment:
-  AlignWith: variable
-
-Style/SingleLineBlockParams:
-  Enabled: false
-
-Style/StringLiteralsInInterpolation:
-  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/WordArray:
-  Enabled: false

.rubocop_todo.yml

@@ -1,142 +0,0 @@
-# This configuration was generated by `rubocop --auto-gen-config`
-# on 2015-05-13 19:54:01 +0000 using RuboCop version 0.31.0.
-# 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: 2
-Lint/AmbiguousOperator:
-  Enabled: false
-
-# Offense count: 2
-Lint/AmbiguousRegexpLiteral:
-  Enabled: false
-
-# Offense count: 1
-Lint/Eval:
-  Enabled: false
-
-# Offense count: 4
-Lint/ParenthesesAsGroupedExpression:
-  Enabled: false
-
-# Offense count: 3
-# Cop supports --auto-correct.
-Lint/UnusedMethodArgument:
-  Enabled: false
-
-# Offense count: 1
-Lint/UselessAccessModifier:
-  Enabled: false
-
-# Offense count: 6
-Lint/UselessAssignment:
-  Enabled: false
-
-# Offense count: 51
-Metrics/AbcSize:
-  Max: 59
-
-# Offense count: 2
-Metrics/BlockNesting:
-  Max: 6
-
-# Offense count: 16
-# Configuration parameters: CountComments.
-Metrics/ClassLength:
-  Max: 304
-
-# Offense count: 10
-Metrics/CyclomaticComplexity:
-  Max: 15
-
-# Offense count: 547
-# Configuration parameters: AllowURI, URISchemes.
-Metrics/LineLength:
-  Max: 294
-
-# Offense count: 76
-# Configuration parameters: CountComments.
-Metrics/MethodLength:
-  Max: 46
-
-# Offense count: 1
-# Configuration parameters: CountComments.
-Metrics/ModuleLength:
-  Max: 216
-
-# Offense count: 6
-Metrics/PerceivedComplexity:
-  Max: 13
-
-# Offense count: 1
-Style/AccessorMethodName:
-  Enabled: false
-
-# Offense count: 2
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-Style/AndOr:
-  Enabled: false
-
-# Offense count: 2
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles, ProceduralMethods, FunctionalMethods, IgnoredMethods.
-Style/BlockDelimiters:
-  Enabled: false
-
-# Offense count: 1
-Style/DoubleNegation:
-  Enabled: false
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-Style/EmptyLinesAroundClassBody:
-  Enabled: false
-
-# Offense count: 2
-# Configuration parameters: MinBodyLength.
-Style/GuardClause:
-  Enabled: false
-
-# Offense count: 1
-# Cop supports --auto-correct.
-# Configuration parameters: EnforcedStyle, SupportedStyles, UseHashRocketsWithSymbolValues.
-Style/HashSyntax:
-  Enabled: false
-
-# Offense count: 13
-# Configuration parameters: EnforcedStyle, SupportedStyles.
-Style/MethodName:
-  Enabled: false
-
-# Offense count: 1
-Style/MultilineBlockChain:
-  Enabled: false
-
-# Offense count: 3
-# Configuration parameters: EnforcedStyle, MinBodyLength, SupportedStyles.
-Style/Next:
-  Enabled: false
-
-# Offense count: 3
-# Configuration parameters: NamePrefix, NamePrefixBlacklist.
-Style/PredicateName:
-  Enabled: false
-
-# Offense count: 1
-Style/RescueModifier:
-  Enabled: false
-
-# Offense count: 7
-# Cop supports --auto-correct.
-# Configuration parameters: AllowAsExpressionSeparator.
-Style/Semicolon:
-  Enabled: false
-
-# Offense count: 3
-# Cop supports --auto-correct.
-Style/SpecialGlobalVars:
-  Enabled: false

.travis.yml

@@ -1,17 +1,13 @@
-language: ruby
-
 rvm:
-  - 2.0
-  - 2.1
-  - 2.2
-  - ruby-head
+  - 1.9.3
+  - 2.0.0
+  - 2.1.0
+  - jruby-19mode
   - jruby-head
-  - rbx-2
-
-sudo: false
-
+  - rbx-19mode
 matrix:
   allow_failures:
+    - rvm: rbx-19mode
     - rvm: jruby-head
 
 script: "rake test"

Gemfile

@@ -1,10 +1,3 @@
 source 'https://rubygems.org'
 
 gemspec
-gem 'stackprof', platforms: :mri_21
-
-group :test do
-  gem 'spy', '0.4.1'
-  gem 'benchmark-ips'
-  gem 'rubocop'
-end

History.md

@@ -1,76 +1,32 @@
-# Liquid Change Log
+# Liquid Version History
 
-## 4.0.0 / not yet released / branch "master"
+## 3.0.0 / not yet released / branch "master"
 
-### Changed
-* Add sort_natural filter (#554) [Martin Hanzel, arthanzel]
-* 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]
-* Remove support for `liquid_methods`
-
-### Fixed
-* Fix naming of the "context variable" when dynamically including a template (#559) [Justin Li, pushrax]
-* Gracefully accept empty strings in the date filter (#555) [Loren Hale, boobooninja]
-* 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]
-
-## 3.0.2 / 2015-04-24 / branch "3-0-stable"
-
-* Expose VariableLookup private members (#551) [Justin Li, pushrax]
-* Documentation fixes
-
-## 3.0.1 / 2015-01-23
-
-* Remove duplicate `index0` key in TableRow tag (#502) [Alfred Xing]
-
-## 3.0.0 / 2014-11-12
-
-* 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, 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]
+* ...
+* Freeze lots of string literals for new Ruby 2.1 optimization, see #297 [Florian Weingarten, fw42]
+* Allow newlines in tags and variables, see #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 a to_s default for liquid drops, see #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, fw42]
-* Fix clashing method names in enumerable drops (#238) [Florian Weingarten, fw42]
-* Make map filter work on enumerable drops (#233) [Florian Weingarten, fw42]
+* Make if, for & case tags return complete and consistent nodelists, see #250 [Nick Jones, dntj]
+* Prevent arbitrary method invocation on condition objects, see #274 [Dylan Thacker-Smith, dylanahsmith]
+* Don't call to_sym when creating conditions for security reasons, see #273 [Bouke van der Bijl, bouk]
+* Fix resource counting bug with respond_to?(:length), see #263 [Florian Weingarten, fw42]
+* Allow specifying custom patterns for template filenames, see #284 [Andrei Gladkyi, agladkyi]
+* Allow drops to optimize loading a slice of elements, see #282 [Tom Burns, boourns]
+* Support for passing variables to snippets in subdirs, see #271 [Joost Hietbrink, joost]
+* Add a class cache to avoid runtime extend calls, see #249 [James Tucker, raggi]
+* Remove some legacy Ruby 1.8 compatibility code, see #276 [Florian Weingarten, fw42]
+* Add default filter to standard filters, see #267 [Derrick Reimer, djreimer]
+* Add optional strict parsing and warn parsing, see #235 [Tristan Hume, trishume]
+* Add I18n syntax error translation, see #241 [Simon Hørup Eskildsen, Sirupsen]
+* Make sort filter work on enumerable drops, see #239 [Florian Weingarten, fw42]
+* Fix clashing method names in enumerable drops, see #238 [Florian Weingarten, fw42]
+* Make map filter work on enumerable drops, see #233 [Florian Weingarten, fw42]
 * Improved whitespace stripping for blank blocks, related to #216 [Florian Weingarten, fw42]
 
-## 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, bouk]
-* Prevent arbitrary method invocation on condition objects (#274) [Dylan Thacker-Smith, dylanahsmith]
-
-## 2.6.0 / 2013-11-25
+## 2.6.0 / 2013-11-25 / branch "2.6-stable"
 
 IMPORTANT: Liquid 2.6 is going to be the last version of Liquid which maintains explicit Ruby 1.8 compatability.
 The following releases will only be tested against Ruby 1.9 and Ruby 2.0 and are likely to break on Ruby 1.8.
@@ -94,15 +50,9 @@ The following releases will only be tested against Ruby 1.9 and Ruby 2.0 and are
 * 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"
+## 2.5.4 / 2013-11-11 / 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, 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), [wǒ_is神仙, jsw0528]
+* Fix "can't convert Fixnum into String" for "replace", see #173, [wǒ_is神仙, jsw0528]
 
 ## 2.5.3 / 2013-10-09
 

README.md

@@ -1,6 +1,4 @@
-[![Build Status](https://api.travis-ci.org/Shopify/liquid.svg?branch=master)](http://travis-ci.org/Shopify/liquid)
-[![Inline docs](http://inch-ci.org/github/Shopify/liquid.svg?branch=master)](http://inch-ci.org/github/Shopify/liquid)
-
+[![Build Status](https://secure.travis-ci.org/Shopify/liquid.png?branch=master)](http://travis-ci.org/Shopify/liquid)
 # Liquid template engine
 
 * [Contributing guidelines](CONTRIBUTING.md)

Rakefile

@@ -3,12 +3,12 @@ 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|
   t.libs << '.' << 'lib' << 'test'
-  t.test_files = FileList['test/{integration,unit}/**/*_test.rb']
+  t.test_files = FileList['test/liquid/**/*_test.rb']
   t.verbose = false
 end
 
@@ -18,11 +18,6 @@ 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'
@@ -32,16 +27,16 @@ task :test do
   Rake::Task['base_test'].invoke
 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"
@@ -49,6 +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"
@@ -60,7 +56,9 @@ namespace :benchmark do
   end
 end
 
+
 namespace :profile do
+
   desc "Run the liquid profile/performance coverage"
   task :run do
     ruby "./performance/profile.rb"
@@ -70,9 +68,18 @@ namespace :profile do
   task :strict do
     ruby "./performance/profile.rb strict"
   end
+
 end
 
 desc "Run example"
 task :example do
   ruby "-w -d -Ilib example/server/server.rb"
 end
+
+if defined?(RUBY_ENGINE) && RUBY_ENGINE == 'ruby'
+  require 'rake/extensiontask'
+  Rake::ExtensionTask.new "liquid" do |ext|
+    ext.lib_dir = "lib/liquid"
+  end
+  Rake::Task[:test].prerequisites << :compile
+end

circle.yml

@@ -1,3 +0,0 @@
-machine:
-  ruby:
-    version: ruby-2.0

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 +17,25 @@ 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, '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' }]
-  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 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 description
     "List of Products ~ This is a list of products with price and description."
   end
+
 end

example/server/liquid_servlet.rb

@@ -11,8 +11,7 @@ class LiquidServlet < WEBrick::HTTPServlet::AbstractServlet
   private
 
   def handle(type, req, res)
-    @request = req
-    @response = res
+    @request, @response = req, res
 
     @request.path_info =~ /(\w+)\z/
     @action = $1 || 'index'
@@ -24,6 +23,6 @@ class LiquidServlet < WEBrick::HTTPServlet::AbstractServlet
   end
 
   def read_template(filename = @action)
-    File.read("#{__dir__}/templates/#{filename}.liquid")
+    File.read( File.dirname(__FILE__) + "/templates/#{filename}.liquid" )
   end
 end

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

example/server/templates/index.liquid

@@ -3,4 +3,4 @@
 <p>It is {{date}}</p>
 
 
-<p>Check out the <a href="/products">Products</a> screen </p>
+<p>Check out the <a href="http://localhost:3000/products">Products</a> screen </p>

example/server/templates/products.liquid

@@ -16,12 +16,12 @@
   </head>
 
   <body>
-    {% assign all_products = products | concat: more_products  %}
+
     <h1>{{ description | split: '~' | first }}</h1>
 
     <h2>{{ description | split: '~' | last }}</h2>
 
-    <h2>There are currently {{all_products | count}} products in the {{section}} catalog</h2>
+    <h2>There are currently {{products | count}} products in the {{section}} catalog</h2>
 
     {% if cool_products %}
       Cool products :)
@@ -31,7 +31,7 @@
 
     <ul id="products">
 
-      {% for product in all_products %}
+      {% for product in products %}
         <li>
           <h2>{{product.name}}</h2>
           Only {{product.price | price }}

ext/liquid/extconf.rb

@@ -0,0 +1,4 @@
+require 'mkmf'
+$CFLAGS << ' -Wall -Werror'
+$warnflags.gsub!(/-Wdeclaration-after-statement/, "")
+create_makefile("liquid/liquid")

ext/liquid/liquid.c

@@ -0,0 +1,9 @@
+#include "liquid.h"
+
+VALUE mLiquid;
+
+void Init_liquid(void)
+{
+    mLiquid = rb_define_module("Liquid");
+    init_liquid_tokenizer();
+}

ext/liquid/liquid.h

@@ -0,0 +1,11 @@
+#ifndef LIQUID_H
+#define LIQUID_H
+
+#include <ruby.h>
+#include <stdbool.h>
+
+#include "tokenizer.h"
+
+extern VALUE mLiquid;
+
+#endif

ext/liquid/tokenizer.c

@@ -0,0 +1,137 @@
+#include "liquid.h"
+
+VALUE cLiquidTokenizer;
+
+static void tokenizer_mark(void *ptr) {
+    tokenizer_t *tokenizer = ptr;
+    rb_gc_mark(tokenizer->source);
+}
+
+static void tokenizer_free(void *ptr)
+{
+    tokenizer_t *tokenizer = ptr;
+    xfree(tokenizer);
+}
+
+static size_t tokenizer_memsize(const void *ptr)
+{
+    return ptr ? sizeof(tokenizer_t) : 0;
+}
+
+const rb_data_type_t tokenizer_data_type = {
+    "liquid_tokenizer",
+    {tokenizer_mark, tokenizer_free, tokenizer_memsize,},
+#ifdef RUBY_TYPED_FREE_IMMEDIATELY
+    NULL, NULL, RUBY_TYPED_FREE_IMMEDIATELY
+#endif
+};
+
+static VALUE tokenizer_allocate(VALUE klass)
+{
+    VALUE obj;
+    tokenizer_t *tokenizer;
+
+    obj = TypedData_Make_Struct(klass, tokenizer_t, &tokenizer_data_type, tokenizer);
+    tokenizer->source = Qnil;
+    return obj;
+}
+
+static VALUE tokenizer_initialize_method(VALUE self, VALUE source)
+{
+    tokenizer_t *tokenizer;
+
+    Check_Type(source, T_STRING);
+    Tokenizer_Get_Struct(self, tokenizer);
+    source = rb_str_dup_frozen(source);
+    tokenizer->source = source;
+    tokenizer->cursor = RSTRING_PTR(source);
+    tokenizer->length = RSTRING_LEN(source);
+    return Qnil;
+}
+
+void tokenizer_next(tokenizer_t *tokenizer, token_t *token)
+{
+    if (tokenizer->length <= 0) {
+        memset(token, 0, sizeof(*token));
+        return;
+    }
+
+    const char *cursor = tokenizer->cursor;
+    const char *last = cursor + tokenizer->length - 1;
+
+    token->str = cursor;
+    token->type = TOKEN_STRING;
+
+    while (cursor < last) {
+        if (*cursor++ != '{')
+            continue;
+
+        char c = *cursor++;
+        if (c != '%' && c != '{')
+            continue;
+        if (cursor - tokenizer->cursor > 2) {
+            token->type = TOKEN_STRING;
+            cursor -= 2;
+            goto found;
+        }
+        token->type = TOKEN_INVALID;
+        if (c == '%') {
+            while (cursor < last) {
+                if (*cursor++ != '%')
+                    continue;
+                c = *cursor++;
+                while (c == '%' && cursor <= last)
+                    c = *cursor++;
+                if (c != '}')
+                    continue;
+                token->type = TOKEN_TAG;
+                goto found;
+            }
+            // unterminated tag
+            cursor = tokenizer->cursor + 2;
+            goto found;
+        } else {
+            while (cursor < last) {
+                if (*cursor++ != '}')
+                    continue;
+                if (*cursor++ != '}') {
+                    // variable incomplete end, used to end raw tags
+                    cursor--;
+                    goto found;
+                }
+                token->type = TOKEN_VARIABLE;
+                goto found;
+            }
+            // unterminated variable
+            cursor = tokenizer->cursor + 2;
+            goto found;
+        }
+    }
+    cursor = last + 1;
+found:
+    token->length = cursor - tokenizer->cursor;
+    tokenizer->cursor += token->length;
+    tokenizer->length -= token->length;
+}
+
+static VALUE tokenizer_next_method(VALUE self)
+{
+    tokenizer_t *tokenizer;
+    Tokenizer_Get_Struct(self, tokenizer);
+
+    token_t token;
+    tokenizer_next(tokenizer, &token);
+    if (token.type == TOKEN_NONE)
+        return Qnil;
+
+    return rb_str_new(token.str, token.length);
+}
+
+void init_liquid_tokenizer()
+{
+    cLiquidTokenizer = rb_define_class_under(mLiquid, "Tokenizer", rb_cObject);
+    rb_define_alloc_func(cLiquidTokenizer, tokenizer_allocate);
+    rb_define_method(cLiquidTokenizer, "initialize", tokenizer_initialize_method, 1);
+    rb_define_method(cLiquidTokenizer, "next", tokenizer_next_method, 0);
+    rb_define_alias(cLiquidTokenizer, "shift", "next");
+}

ext/liquid/tokenizer.h

@@ -0,0 +1,31 @@
+#ifndef LIQUID_TOKENIZER_H
+#define LIQUID_TOKENIZER_H
+
+enum token_type {
+    TOKEN_NONE,
+    TOKEN_INVALID,
+    TOKEN_STRING,
+    TOKEN_TAG,
+    TOKEN_VARIABLE
+};
+
+typedef struct token {
+    enum token_type type;
+    const char *str;
+    long length;
+} token_t;
+
+typedef struct tokenizer {
+    VALUE source;
+    const char *cursor;
+    long length;
+} tokenizer_t;
+
+extern VALUE cLiquidTokenizer;
+extern const rb_data_type_t tokenizer_data_type;
+#define Tokenizer_Get_Struct(obj, sval) TypedData_Get_Struct(obj, tokenizer_t, &tokenizer_data_type, sval)
+
+void init_liquid_tokenizer();
+void tokenizer_next(tokenizer_t *tokenizer, token_t *token);
+
+#endif

init.rb

@@ -0,0 +1,8 @@
+require 'liquid'
+require 'extras/liquid_view'
+
+if defined? ActionView::Template and ActionView::Template.respond_to? :register_template_handler
+  ActionView::Template
+else
+  ActionView::Base
+end.register_template_handler(:liquid, LiquidView)

lib/extras/liquid_view.rb

@@ -0,0 +1,51 @@
+# LiquidView is a action view extension class. You can register it with rails
+# and use liquid as an template system for .liquid files
+#
+# Example
+#
+#   ActionView::Base::register_template_handler :liquid, LiquidView
+class LiquidView
+  PROTECTED_ASSIGNS = %w( template_root response _session template_class action_name request_origin session template
+                          _response url _request _cookies variables_added _flash params _headers request cookies
+                          ignore_missing_templates flash _params logger before_filter_chain_aborted headers )
+  PROTECTED_INSTANCE_VARIABLES = %w( @_request @controller @_first_render @_memoized__pick_template @view_paths
+                                     @helpers @assigns_added @template @_render_stack @template_format @assigns )
+
+  def self.call(template)
+    "LiquidView.new(self).render(template, local_assigns)"
+  end
+
+  def initialize(view)
+    @view = view
+  end
+
+  def render(template, local_assigns = nil)
+    @view.controller.headers["Content-Type"] ||= 'text/html; charset=utf-8'
+
+    # Rails 2.2 Template has source, but not locals
+    if template.respond_to?(:source) && !template.respond_to?(:locals)
+      assigns = (@view.instance_variables - PROTECTED_INSTANCE_VARIABLES).inject({}) do |hash, ivar|
+                  hash[ivar[1..-1]] = @view.instance_variable_get(ivar)
+                  hash
+                end
+    else
+      assigns = @view.assigns.reject{ |k,v| PROTECTED_ASSIGNS.include?(k) }
+    end
+
+    source = template.respond_to?(:source) ? template.source : template
+    local_assigns = (template.respond_to?(:locals) ? template.locals : local_assigns) || {}
+
+    if content_for_layout = @view.instance_variable_get("@content_for_layout")
+      assigns['content_for_layout'] = content_for_layout
+    end
+    assigns.merge!(local_assigns.stringify_keys)
+
+    liquid = Liquid::Template.parse(source)
+    liquid.render(assigns, :filters => [@view.controller.master_helper_module], :registers => {:action_view => @view, :controller => @view.controller})
+  end
+
+  def compilable?
+    false
+  end
+
+end

lib/liquid.rb

@@ -30,17 +30,10 @@ module Liquid
   VariableSegment             = /[\w\-]/
   VariableStart               = /\{\{/
   VariableEnd                 = /\}\}/
-  VariableIncompleteEnd       = /\}\}?/
   QuotedString                = /"[^"]*"|'[^']*'/
   QuotedFragment              = /#{QuotedString}|(?:[^\s,\|'"]|#{QuotedString})+/o
   TagAttributes               = /(\w+)\s*\:\s*(#{QuotedFragment})/o
-  AnyStartingTag              = /\{\{|\{\%/
-  PartialTemplateParser       = /#{TagStart}.*?#{TagEnd}|#{VariableStart}.*?#{VariableIncompleteEnd}/om
-  TemplateParser              = /(#{PartialTemplateParser}|#{AnyStartingTag})/om
   VariableParser              = /\[[^\]]+\]|#{VariableSegment}+\??/o
-
-  singleton_class.send(:attr_accessor, :cache_classes)
-  self.cache_classes = true
 end
 
 require "liquid/version"
@@ -50,27 +43,26 @@ require 'liquid/i18n'
 require 'liquid/drop'
 require 'liquid/extensions'
 require 'liquid/errors'
-require 'liquid/error_location'
 require 'liquid/interrupts'
 require 'liquid/strainer'
-require 'liquid/expression'
 require 'liquid/context'
-require 'liquid/parser_switching'
 require 'liquid/tag'
 require 'liquid/block'
-require 'liquid/block_body'
 require 'liquid/document'
 require 'liquid/variable'
-require 'liquid/variable_lookup'
-require 'liquid/range_lookup'
 require 'liquid/file_system'
-require 'liquid/resource_limits'
 require 'liquid/template'
 require 'liquid/standardfilters'
 require 'liquid/condition'
+require 'liquid/module_ex'
 require 'liquid/utils'
-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 }
+
+if defined?(RUBY_ENGINE) && RUBY_ENGINE == 'ruby'
+  require 'liquid/liquid'
+else
+  require 'liquid/tokenizer'
+end

lib/liquid/block.rb

@@ -1,26 +1,65 @@
 module Liquid
   class Block < Tag
-    def initialize(tag_name, markup, options)
-      super
-      @blank = true
+    IsTag             = /\A#{TagStart}/o
+    IsVariable        = /\A#{VariableStart}/o
+    FullToken         = /\A#{TagStart}\s*(\w+)\s*(.*)?#{TagEnd}\z/om
+    ContentOfVariable = /\A#{VariableStart}(.*)#{VariableEnd}\z/om
+
+    def blank?
+      @blank || false
     end
 
     def parse(tokens)
-      @body = BlockBody.new
-      while more = parse_body(@body, tokens)
+      @blank = true
+      @nodelist ||= []
+      @nodelist.clear
+
+      # All child tags of the current block.
+      @children = []
+
+      while token = tokens.shift
+        case token
+        when IsTag
+          if token =~ FullToken
+
+            # if we found the proper block delimiter just end parsing here and let the outer block
+            # proceed
+            if block_delimiter == $1
+              end_tag
+              return
+            end
+
+            # fetch the tag from registered blocks
+            if tag = Template.tags[$1]
+              new_tag = tag.parse($1, $2, tokens, @options)
+              @blank &&= new_tag.blank?
+              @nodelist << new_tag
+              @children << new_tag
+            else
+              # this tag is not registered with the system
+              # pass it to the current block for special handling or error reporting
+              unknown_tag($1, $2, tokens)
+            end
+          else
+            raise SyntaxError.new(options[:locale].t("errors.syntax.tag_termination".freeze, :token => token, :tag_end => TagEnd.inspect))
+          end
+        when IsVariable
+          new_var = create_variable(token)
+          @nodelist << new_var
+          @children << new_var
+          @blank = false
+        when ''.freeze
+          # pass
+        else
+          @nodelist << token
+          @blank &&= (token =~ /\A\s*\z/)
+        end
       end
-    end
 
-    def render(context)
-      @body.render(context)
-    end
-
-    def blank?
-      @blank
-    end
-
-    def nodelist
-      @body.nodelist
+      # Make sure that it's ok to end parsing in the current block.
+      # Effectively this method will throw an exception unless the current block is
+      # of type Document
+      assert_missing_delimitation!
     end
 
     # warnings of this block and all sub-tags
@@ -28,52 +67,90 @@ module Liquid
       all_warnings = []
       all_warnings.concat(@warnings) if @warnings
 
-      (nodelist || []).each do |node|
-        all_warnings.concat(node.warnings || []) if node.respond_to?(:warnings)
+      (@children || []).each do |node|
+        all_warnings.concat(node.warnings || [])
       end
 
       all_warnings
     end
 
-    def unknown_tag(tag, _params, _tokens)
+    def end_tag
+    end
+
+    def unknown_tag(tag, params, tokens)
       case tag
       when 'else'.freeze
         raise SyntaxError.new(options[:locale].t("errors.syntax.unexpected_else".freeze,
-          block_name: block_name))
+                                                 :block_name => block_name))
       when 'end'.freeze
         raise SyntaxError.new(options[:locale].t("errors.syntax.invalid_delimiter".freeze,
-          block_name: block_name,
-          block_delimiter: block_delimiter))
+                                                 :block_name => block_name,
+                                                 :block_delimiter => block_delimiter))
       else
-        raise SyntaxError.new(options[:locale].t("errors.syntax.unknown_tag".freeze, tag: tag))
+        raise SyntaxError.new(options[:locale].t("errors.syntax.unknown_tag".freeze, :tag => tag))
       end
     end
 
+    def block_delimiter
+      "end#{block_name}"
+    end
+
     def block_name
       @tag_name
     end
 
-    def block_delimiter
-      @block_delimiter ||= "end#{block_name}"
+    def create_variable(token)
+      token.scan(ContentOfVariable) do |content|
+        return Variable.new(content.first, @options)
+      end
+      raise SyntaxError.new(options[:locale].t("errors.syntax.variable_termination".freeze, :token => token, :tag_end => VariableEnd.inspect))
+    end
+
+    def render(context)
+      render_all(@nodelist, context)
     end
 
     protected
 
-    def parse_body(body, tokens)
-      body.parse(tokens, options) do |end_tag_name, end_tag_params|
-        @blank &&= body.blank?
+    def assert_missing_delimitation!
+      raise SyntaxError.new(options[:locale].t("errors.syntax.tag_never_closed".freeze, :block_name => block_name))
+    end
 
-        return false if end_tag_name == block_delimiter
-        unless end_tag_name
-          raise SyntaxError.new(@options[:locale].t("errors.syntax.tag_never_closed".freeze, block_name: block_name))
+    def render_all(list, context)
+      output = []
+      context.resource_limits[:render_length_current] = 0
+      context.resource_limits[:render_score_current] += list.length
+
+      list.each do |token|
+        # Break out if we have any unhanded interrupts.
+        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 or token.is_a? Break
+            context.push_interrupt(token.interrupt)
+            break
+          end
+
+          token_output = (token.respond_to?(:render) ? token.render(context) : token)
+          context.increment_used_resources(:render_length_current, token_output)
+          if context.resource_limits_reached?
+            context.resource_limits[:reached] = true
+            raise MemoryError.new("Memory limits exceeded".freeze)
+          end
+          unless token.is_a?(Block) && token.blank?
+            output << token_output
+          end
+        rescue MemoryError => e
+          raise e
+        rescue ::StandardError => e
+          output << (context.handle_error(e))
         end
-
-        # this tag is not registered with the system
-        # pass it to the current block for special handling or error reporting
-        unknown_tag(end_tag_name, end_tag_params, tokens)
       end
 
-      true
+      output.join
     end
   end
 end

lib/liquid/block_body.rb

@@ -1,131 +0,0 @@
-module Liquid
-  class BlockBody
-    FullToken = /\A#{TagStart}\s*(\w+)\s*(.*)?#{TagEnd}\z/om
-    ContentOfVariable = /\A#{VariableStart}(.*)#{VariableEnd}\z/om
-    TAGSTART = "{%".freeze
-    VARSTART = "{{".freeze
-
-    attr_reader :nodelist
-
-    def initialize
-      @nodelist = []
-      @blank = true
-    end
-
-    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
-                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
-              @nodelist << token
-              @blank &&= !!(token =~ /\A\s*\z/)
-            end
-          end
-        rescue SyntaxError => e
-          e.set_line_number_from_token(token)
-          raise
-        end
-      end
-
-      yield nil, nil
-    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 = []
-      context.resource_limits.render_score += @nodelist.length
-
-      @nodelist.each do |token|
-        # Break out if we have any unhanded interrupts.
-        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)
-            context.push_interrupt(token.interrupt)
-            break
-          end
-
-          token_output = render_token(token, context)
-
-          unless token.is_a?(Block) && token.blank?
-            output << token_output
-          end
-        rescue MemoryError => e
-          raise e
-        rescue ::StandardError => e
-          output << context.handle_error(e, token)
-        end
-      end
-
-      output.join
-    end
-
-    private
-
-    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 += token_str.length
-      if context.resource_limits.reached?
-        raise MemoryError.new("Memory limits exceeded".freeze)
-      end
-      token_str
-    end
-
-    def create_variable(token, options)
-      token.scan(ContentOfVariable) do |content|
-        markup = token.is_a?(Token) ? token.child(content.first) : content.first
-        return Variable.new(markup, options)
-      end
-      raise_missing_variable_terminator(token, options)
-    end
-
-    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, options)
-      raise SyntaxError.new(options[:locale].t("errors.syntax.variable_termination".freeze, token: token, tag_end: VariableEnd.inspect))
-    end
-  end
-end

lib/liquid/condition.rb

@@ -3,21 +3,19 @@ module Liquid
   #
   # Example:
   #
-  #   c = Condition.new(1, '==', 1)
+  #   c = Condition.new('1', '==', '1')
   #   c.evaluate #=> true
   #
   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|
-        left && right && left.respond_to?(:include?) ? left.include?(right) : false
-      end
+      'contains'.freeze => lambda { |cond, left, right| left && right ? left.include?(right) : false }
     }
 
     def self.operators
@@ -28,9 +26,7 @@ module Liquid
     attr_accessor :left, :operator, :right
 
     def initialize(left = nil, operator = nil, right = nil)
-      @left = left
-      @operator = operator
-      @right = right
+      @left, @operator, @right = left, operator, right
       @child_relation  = nil
       @child_condition = nil
     end
@@ -49,13 +45,11 @@ module Liquid
     end
 
     def or(condition)
-      @child_relation = :or
-      @child_condition = condition
+      @child_relation, @child_condition = :or, condition
     end
 
     def and(condition)
-      @child_relation = :and
-      @child_condition = condition
+      @child_relation, @child_condition = :and, condition
     end
 
     def attach(attachment)
@@ -96,32 +90,31 @@ 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[left] if op == nil
 
-      left = context.evaluate(left)
-      right = context.evaluate(right)
+      left, right = context[left], context[right]
 
-      operation = self.class.operators[op] || raise(Liquid::ArgumentError.new("Unknown operator #{op}"))
+      operation = self.class.operators[op] || raise(ArgumentError.new("Unknown operator #{op}"))
 
       if operation.respond_to?(:call)
         operation.call(self, left, right)
-      elsif left.respond_to?(operation) && right.respond_to?(operation)
-        begin
-          left.send(operation, right)
-        rescue ::ArgumentError => e
-          raise Liquid::ArgumentError.new(e.message)
-        end
+      elsif left.respond_to?(operation) and right.respond_to?(operation)
+        left.send(operation, right)
+      else
+        nil
       end
     end
   end
 
+
   class ElseCondition < Condition
     def else?
       true
     end
 
-    def evaluate(_context)
+    def evaluate(context)
       true
     end
   end
+
 end

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'
@@ -12,29 +13,35 @@ module Liquid
   #
   #   context['bob']  #=> nil  class Context
   class Context
-    attr_reader :scopes, :errors, :error_locations, :registers, :environments, :resource_limits
-    attr_accessor :exception_handler, :render_errors, :template_name
+    attr_reader :scopes, :errors, :registers, :environments, :resource_limits
 
-    def initialize(environments = {}, outer_scope = {}, registers = {}, rethrow_errors = false, resource_limits = nil, render_errors = true)
-      @environments     = [environments].flatten
-      @scopes           = [(outer_scope || {})]
-      @registers        = registers
-      @errors           = []
-      @error_locations  = []
-      @resource_limits  = resource_limits || ResourceLimits.new(Template.default_resource_limits)
+    def initialize(environments = {}, outer_scope = {}, registers = {}, rethrow_errors = false, resource_limits = {})
+      @environments    = [environments].flatten
+      @scopes          = [(outer_scope || {})]
+      @registers       = registers
+      @errors          = []
+      @rethrow_errors  = rethrow_errors
+      @resource_limits = (resource_limits || {}).merge!({ :render_score_current => 0, :assign_score_current => 0 })
       squash_instance_assigns_with_environments
-      @render_errors    = render_errors
-
-      @this_stack_used = false
-
-      if rethrow_errors
-        self.exception_handler = ->(e) { true }
-      end
 
       @interrupts = []
       @filters = []
     end
 
+    def increment_used_resources(key, obj)
+      @resource_limits[key] += if obj.kind_of?(String) || obj.kind_of?(Array) || obj.kind_of?(Hash)
+        obj.length
+      else
+        1
+      end
+    end
+
+    def resource_limits_reached?
+      (@resource_limits[:render_length_limit] && @resource_limits[:render_length_current] > @resource_limits[:render_length_limit]) ||
+      (@resource_limits[:render_score_limit]  && @resource_limits[:render_score_current]  > @resource_limits[:render_score_limit] ) ||
+      (@resource_limits[:assign_score_limit]  && @resource_limits[:assign_score_current]  > @resource_limits[:assign_score_limit] )
+    end
+
     def strainer
       @strainer ||= Strainer.create(self, @filters)
     end
@@ -45,13 +52,26 @@ module Liquid
     # for that
     def add_filters(filters)
       filters = [filters].flatten.compact
-      @filters += filters
-      @strainer = nil
+      filters.each do |f|
+        raise ArgumentError, "Expected module but got: #{f.class}" unless f.is_a?(Module)
+        Strainer.add_known_filter(f)
+      end
+
+      # If strainer is already setup then there's no choice but to use a runtime
+      # extend call. If strainer is not yet created, we can utilize strainers
+      # cached class based API, which avoids busting the method cache.
+      if @strainer
+        filters.each do |f|
+          strainer.extend(f)
+        end
+      else
+        @filters.concat filters
+      end
     end
 
     # are there any not handled interrupts?
     def has_interrupt?
-      !@interrupts.empty?
+      @interrupts.any?
     end
 
     # push an interrupt to the stack. this interrupt is considered not handled.
@@ -64,24 +84,24 @@ module Liquid
       @interrupts.pop
     end
 
-    def handle_error(e, token = nil)
-      if e.is_a?(Liquid::Error)
-        e.template_name = template_name
-        e.set_line_number_from_token(token)
-      end
-
+    def handle_error(e)
       errors.push(e)
-      error_locations.push(ErrorLocation.from_token(template_name, token))
-      raise if exception_handler && exception_handler.call(e)
-      render_errors ? Liquid::Error.render(e) : ''
+      raise if @rethrow_errors
+
+      case e
+      when SyntaxError
+        "Liquid syntax error: #{e.message}"
+      else
+        "Liquid error: #{e.message}"
+      end
     end
 
     def invoke(method, *args)
-      strainer.invoke(method, *args).to_liquid
+      strainer.invoke(method, *args)
     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
@@ -105,19 +125,11 @@ module Liquid
     #   end
     #
     #   context['var]  #=> nil
-    def stack(new_scope = nil)
-      old_stack_used = @this_stack_used
-      if new_scope
-        push(new_scope)
-        @this_stack_used = true
-      else
-        @this_stack_used = false
-      end
-
+    def stack(new_scope={})
+      push(new_scope)
       yield
     ensure
-      pop if @this_stack_used
-      @this_stack_used = old_stack_used
+      pop
     end
 
     def clear_instance_assigns
@@ -126,80 +138,148 @@ module Liquid
 
     # Only allow String, Numeric, Hash, Array, Proc, Boolean or <tt>Liquid::Drop</tt>
     def []=(key, value)
-      unless @this_stack_used
-        @this_stack_used = true
-        push({})
-      end
       @scopes[0][key] = value
     end
 
-    # Look up variable, either resolve directly after considering the name. We can directly handle
-    # Strings, digits, floats and booleans (true,false).
-    # If no match is made we lookup the variable in the current scope and
-    # later move up to the parent blocks to see if we can resolve the variable somewhere up the tree.
-    # Some special keywords return symbols. Those symbols are to be called on the rhs object in expressions
-    #
-    # Example:
-    #   products == empty #=> products.empty?
-    def [](expression)
-      evaluate(Expression.parse(expression))
+    def [](key)
+      resolve(key)
     end
 
     def has_key?(key)
-      self[key] != nil
-    end
-
-    def evaluate(object)
-      object.respond_to?(:evaluate) ? object.evaluate(self) : object
-    end
-
-    # 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.has_key?(key) }
-      scope = @scopes[index] if index
-
-      variable = nil
-
-      if scope.nil?
-        @environments.each do |e|
-          variable = lookup_and_evaluate(e, key)
-          unless variable.nil?
-            scope = e
-            break
-          end
-        end
-      end
-
-      scope ||= @environments.last || @scopes.last
-      variable ||= lookup_and_evaluate(scope, key)
-
-      variable = variable.to_liquid
-      variable.context = self if variable.respond_to?(:context=)
-
-      variable
-    end
-
-    def lookup_and_evaluate(obj, key)
-      if (value = obj[key]).is_a?(Proc) && obj.respond_to?(:[]=)
-        obj[key] = (value.arity == 0) ? value.call : value.call(self)
-      else
-        value
-      end
+      resolve(key) != nil
     end
 
     private
+      LITERALS = {
+        nil => nil, 'nil'.freeze => nil, 'null'.freeze => nil, ''.freeze => nil,
+        'true'.freeze  => true,
+        'false'.freeze => false,
+        'blank'.freeze => :blank?,
+        'empty'.freeze => :empty?
+      }
 
-    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
+      # Look up variable, either resolve directly after considering the name. We can directly handle
+      # Strings, digits, floats and booleans (true,false).
+      # If no match is made we lookup the variable in the current scope and
+      # later move up to the parent blocks to see if we can resolve the variable somewhere up the tree.
+      # Some special keywords return symbols. Those symbols are to be called on the rhs object in expressions
+      #
+      # Example:
+      #   products == empty #=> products.empty?
+      def resolve(key)
+        if LITERALS.key?(key)
+          LITERALS[key]
+        else
+          case key
+          when /\A'(.*)'\z/m # Single quoted strings
+            $1
+          when /\A"(.*)"\z/m # Double quoted strings
+            $1
+          when /\A(-?\d+)\z/ # Integer and floats
+            $1.to_i
+          when /\A\((\S+)\.\.(\S+)\)\z/ # Ranges
+            (resolve($1).to_i..resolve($2).to_i)
+          when /\A(-?\d[\d\.]+)\z/ # Floats
+            $1.to_f
+          else
+            variable(key)
           end
         end
       end
-    end # squash_instance_assigns_with_environments
+
+      # Fetches an object starting at the local scope and then moving up the hierachy
+      def find_variable(key)
+        scope = @scopes.find { |s| s.has_key?(key) }
+        variable = nil
+
+        if scope.nil?
+          @environments.each do |e|
+            if variable = lookup_and_evaluate(e, key)
+              scope = e
+              break
+            end
+          end
+        end
+
+        scope     ||= @environments.last || @scopes.last
+        variable  ||= lookup_and_evaluate(scope, key)
+
+        variable = variable.to_liquid
+        variable.context = self if variable.respond_to?(:context=)
+
+        return variable
+      end
+
+      # Resolves namespaced queries gracefully.
+      #
+      # Example
+      #  @context['hash'] = {"name" => 'tobi'}
+      #  assert_equal 'tobi', @context['hash.name']
+      #  assert_equal 'tobi', @context['hash["name"]']
+      def variable(markup)
+        parts = markup.scan(VariableParser)
+        square_bracketed = /\A\[(.*)\]\z/m
+
+        first_part = parts.shift
+
+        if first_part =~ square_bracketed
+          first_part = resolve($1)
+        end
+
+        if object = find_variable(first_part)
+
+          parts.each do |part|
+            part = resolve($1) if part_resolved = (part =~ square_bracketed)
+
+            # 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?(:[]) and
+              ((object.respond_to?(:has_key?) and object.has_key?(part)) or
+               (object.respond_to?(:fetch) and part.is_a?(Integer)))
+
+              # if its a proc we will replace the entry with the proc
+              res = lookup_and_evaluate(object, part)
+              object = res.to_liquid
+
+              # Some special cases. If the part wasn't in square brackets and
+              # no key with the same name was found we interpret following calls
+              # as commands and call them on the current object
+            elsif !part_resolved and object.respond_to?(part) and ['size'.freeze, 'first'.freeze, 'last'.freeze].include?(part)
+
+              object = object.send(part.intern).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
+            else
+              return nil
+            end
+
+            # If we are dealing with a drop here we have to
+            object.context = self if object.respond_to?(:context=)
+          end
+        end
+
+        object
+      end # variable
+
+      def lookup_and_evaluate(obj, key)
+        if (value = obj[key]).is_a?(Proc) && obj.respond_to?(:[]=)
+          obj[key] = (value.arity == 0) ? value.call : value.call(self)
+        else
+          value
+        end
+      end # lookup_and_evaluate
+
+      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 # squash_instance_assigns_with_environments
   end # Context
+
 end # Liquid

lib/liquid/document.rb

@@ -1,24 +1,17 @@
 module Liquid
-  class Document < BlockBody
-    def self.parse(tokens, options)
-      doc = new
-      doc.parse(tokens, options)
-      doc
+  class Document < Block
+    def self.parse(tokens, options={})
+      # we don't need markup to open this block
+      super(nil, nil, tokens, options)
     end
 
-    def parse(tokens, options)
-      super do |end_tag_name, end_tag_params|
-        unknown_tag(end_tag_name, options) if end_tag_name
-      end
+    # There isn't a real delimiter
+    def block_delimiter
+      []
     end
 
-    def unknown_tag(tag, options)
-      case tag
-      when 'else'.freeze, 'end'.freeze
-        raise SyntaxError.new(options[:locale].t("errors.syntax.unexpected_outer_tag".freeze, tag: tag))
-      else
-        raise SyntaxError.new(options[:locale].t("errors.syntax.unknown_tag".freeze, tag: tag))
-      end
+    # Document blocks don't need to be terminated since they are not actually opened
+    def assert_missing_delimitation!
     end
   end
 end

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.
@@ -26,7 +27,7 @@ module Liquid
     EMPTY_STRING = ''.freeze
 
     # Catch all for the method
-    def before_method(_method)
+    def before_method(method)
       nil
     end
 
@@ -39,7 +40,7 @@ module Liquid
       end
     end
 
-    def has_key?(_name)
+    def has_key?(name)
       true
     end
 
@@ -55,16 +56,12 @@ 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)
-    end
-
-    def self.invokable_methods
       unless @invokable_methods
         blacklist = Liquid::Drop.public_instance_methods + [:each]
         if include?(Enumerable)
@@ -74,7 +71,7 @@ module Liquid
         whitelist = [:to_liquid] + (public_instance_methods - blacklist)
         @invokable_methods = Set.new(whitelist.map(&:to_s))
       end
-      @invokable_methods
+      @invokable_methods.include?(method_name.to_s)
     end
   end
 end

lib/liquid/error_location.rb

@@ -1,11 +0,0 @@
-module Liquid
-  ErrorLocation = Struct.new(:template_name, :line_number) do
-    def self.line_number_from_token(token)
-      token.respond_to?(:line_number) ? token.line_number : nil
-    end
-
-    def self.from_token(template_name, token)
-      new(template_name, line_number_from_token(token))
-    end
-  end
-end

lib/liquid/errors.rb

@@ -1,62 +1,12 @@
 module Liquid
-  class Error < ::StandardError
-    attr_accessor :line_number
-    attr_accessor :template_name
-    attr_accessor :markup_context
+  class Error < ::StandardError; end
 
-    def to_s(with_prefix = true)
-      str = ""
-      str << message_prefix if with_prefix
-      str << super()
-
-      if markup_context
-        str << " "
-        str << markup_context
-      end
-
-      str
-    end
-
-    def set_line_number_from_token(token)
-      return if line_number
-      self.line_number = ErrorLocation.line_number_from_token(token)
-    end
-
-    def self.render(e)
-      if e.is_a?(Liquid::Error)
-        e.to_s
-      else
-        "Liquid error: #{e}"
-      end
-    end
-
-    private
-
-    def message_prefix
-      str = ""
-      if is_a?(SyntaxError)
-        str << "Liquid syntax error"
-      else
-        str << "Liquid error"
-      end
-
-      if line_number
-        str << " ("
-        str << template_name << " " if template_name
-        str << "line " << line_number.to_s << ")"
-      end
-
-      str << ": "
-      str
-    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)
+  class ArgumentError < Error; end
+  class ContextError < Error; end
+  class FilterNotFound < Error; end
+  class FileSystemError < Error; end
+  class StandardError < Error; end
+  class SyntaxError < Error; end
+  class StackLevelError < Error; end
+  class MemoryError < Error; end
 end

lib/liquid/expression.rb

@@ -1,32 +0,0 @@
-module Liquid
-  class Expression
-    LITERALS = {
-      nil => nil, 'nil'.freeze => nil, 'null'.freeze => nil, ''.freeze => nil,
-      'true'.freeze  => true,
-      'false'.freeze => false,
-      'blank'.freeze => :blank?,
-      'empty'.freeze => :empty?
-    }
-
-    def self.parse(markup)
-      if LITERALS.key?(markup)
-        LITERALS[markup]
-      else
-        case markup
-        when /\A'(.*)'\z/m # Single quoted strings
-          $1
-        when /\A"(.*)"\z/m # Double quoted strings
-          $1
-        when /\A(-?\d+)\z/ # Integer and floats
-          $1.to_i
-        when /\A\((\S+)\.\.(\S+)\)\z/ # Ranges
-          RangeLookup.parse($1, $2)
-        when /\A(-?\d[\d\.]+)\z/ # Floats
-          $1.to_f
-        else
-          VariableLookup.parse(markup)
-        end
-      end
-    end
-  end
-end

lib/liquid/file_system.rb

@@ -14,7 +14,7 @@ module Liquid
   # 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, context)
       raise FileSystemError, "This liquid context does not allow includes."
     end
   end
@@ -49,9 +49,9 @@ module Liquid
       @pattern = pattern
     end
 
-    def read_template_file(template_path)
+    def read_template_file(template_path, context)
       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

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
 
@@ -22,7 +23,6 @@ module Liquid
     end
 
     private
-
     def interpolate(name, vars)
       name.gsub(/%\{(\w+)\}/) {
         # raise TranslationError, "Undefined key #{$1} for interpolation in translation #{name}"  unless vars[$1.to_sym]

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

lib/liquid/lexer.rb

@@ -9,11 +9,9 @@ module Liquid
       '['.freeze => :open_square,
       ']'.freeze => :close_square,
       '('.freeze => :open_round,
-      ')'.freeze => :close_round,
-      '?'.freeze => :question,
-      '-'.freeze => :dash
+      ')'.freeze => :close_round
     }
-    IDENTIFIER = /[a-zA-Z_][\w-]*\??/
+    IDENTIFIER = /[\w\-?!]+/
     SINGLE_STRING_LITERAL = /'[^\']*'/
     DOUBLE_STRING_LITERAL = /"[^\"]*"/
     NUMBER_LITERAL = /-?\d+(\.\d+)?/
@@ -27,7 +25,7 @@ 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 +37,7 @@ module Liquid
         else
           c = @ss.getch
           if s = SPECIALS[c]
-            [s, c]
+            [s,c]
           else
             raise SyntaxError, "Unexpected character #{c}"
           end

lib/liquid/locales/en.yml

@@ -14,8 +14,7 @@
       include: "Error in tag 'include' - Valid syntax: include '[template]' (with|for) [object|collection]"
       unknown_tag: "Unknown tag '%{tag}'"
       invalid_delimiter: "'end' is not a valid delimiter for %{block_name} tags. use %{block_delimiter}"
-      unexpected_else: "%{block_name} tag does not expect 'else' tag"
-      unexpected_outer_tag: "Unexpected outer '%{tag}' tag"
+      unexpected_else: "%{block_name} tag does not expect else tag"
       tag_termination: "Tag '%{token}' was not properly terminated with regexp: %{tag_end}"
       variable_termination: "Variable '%{token}' was not properly terminated with regexp: %{tag_end}"
       tag_never_closed: "'%{block_name}' tag was never closed"

lib/liquid/module_ex.rb

@@ -0,0 +1,62 @@
+# 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
+# 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

lib/liquid/parser_switching.rb

@@ -1,32 +0,0 @@
-module Liquid
-  module ParserSwitching
-    def parse_with_selected_parser(markup)
-      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
-          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.markup_context = markup_context(markup)
-      raise e
-    end
-
-    def markup_context(markup)
-      "in \"#{markup.strip}\""
-    end
-  end
-end

lib/liquid/profiler.rb

@@ -1,158 +0,0 @@
-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'.
-  # Then, to profile a parse/render cycle, pass the <tt>profile: true</tt> option to <tt>Liquid::Template.parse</tt>.
-  # After <tt>Liquid::Template#render</tt> is called, the template object makes available an instance of this
-  # class via the <tt>Liquid::Template#profiler</tt> method.
-  #
-  #   template = Liquid::Template.parse(template_content, profile: true)
-  #   output  = template.render
-  #   profile = template.profiler
-  #
-  # This object contains all profiling information, containing information on what tags were rendered,
-  # where in the templates these tags live, and how long each tag took to render.
-  #
-  # This is a tree structure that is Enumerable all the way down, and keeps track of tags and rendering times
-  # inside of <tt>{% include %}</tt> tags.
-  #
-  #   profile.each do |node|
-  #     # Access to the token itself
-  #     node.code
-  #
-  #     # Which template and line number of this node.
-  #     # If top level, this will be "<root>".
-  #     node.partial
-  #     node.line_number
-  #
-  #     # Render time in seconds of this node
-  #     node.render_time
-  #
-  #     # If the template used {% include %}, this node will also have children.
-  #     node.children.each do |child2|
-  #       # ...
-  #     end
-  #   end
-  #
-  # Profiler also exposes the total time of the template's render in <tt>Liquid::Profiler#total_render_time</tt>.
-  #
-  # All render times are in seconds. There is a small performance hit when profiling is enabled.
-  #
-  class Profiler
-    include Enumerable
-
-    class Timing
-      attr_reader :code, :partial, :line_number, :children
-
-      def initialize(token, partial)
-        @code        = token.respond_to?(:raw) ? token.raw : token
-        @partial     = partial
-        @line_number = token.respond_to?(:line_number) ? token.line_number : nil
-        @children    = []
-      end
-
-      def self.start(token, partial)
-        new(token, partial).tap(&:start)
-      end
-
-      def start
-        @start_time = Time.now
-      end
-
-      def finish
-        @end_time = Time.now
-      end
-
-      def render_time
-        @end_time - @start_time
-      end
-    end
-
-    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_token(token)
-        output
-      else
-        yield
-      end
-    end
-
-    def self.profile_children(template_name)
-      if Profiler.current_profile
-        Profiler.current_profile.push_partial(template_name)
-        output = yield
-        Profiler.current_profile.pop_partial
-        output
-      else
-        yield
-      end
-    end
-
-    def self.current_profile
-      Thread.current[:liquid_profiler]
-    end
-
-    def initialize
-      @partial_stack = ["<root>"]
-
-      @root_timing = Timing.new("", current_partial)
-      @timing_stack = [@root_timing]
-
-      @render_start_at = Time.now
-      @render_end_at = @render_start_at
-    end
-
-    def start
-      Thread.current[:liquid_profiler] = self
-      @render_start_at = Time.now
-    end
-
-    def stop
-      Thread.current[:liquid_profiler] = nil
-      @render_end_at = Time.now
-    end
-
-    def total_render_time
-      @render_end_at - @render_start_at
-    end
-
-    def each(&block)
-      @root_timing.children.each(&block)
-    end
-
-    def [](idx)
-      @root_timing.children[idx]
-    end
-
-    def length
-      @root_timing.children.length
-    end
-
-    def start_token(token)
-      @timing_stack.push(Timing.start(token, current_partial))
-    end
-
-    def end_token(_token)
-      timing = @timing_stack.pop
-      timing.finish
-
-      @timing_stack.last.children << timing
-    end
-
-    def current_partial
-      @partial_stack.last
-    end
-
-    def push_partial(partial_name)
-      @partial_stack.push(partial_name)
-    end
-
-    def pop_partial
-      @partial_stack.pop
-    end
-  end
-end

lib/liquid/profiler/hooks.rb

@@ -1,23 +0,0 @@
-module Liquid
-  class BlockBody
-    def render_token_with_profiling(token, context)
-      Profiler.profile_token_render(token) do
-        render_token_without_profiling(token, context)
-      end
-    end
-
-    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
-        render_without_profiling(context)
-      end
-    end
-
-    alias_method :render_without_profiling, :render
-    alias_method :render, :render_with_profiling
-  end
-end

lib/liquid/range_lookup.rb

@@ -1,22 +0,0 @@
-module Liquid
-  class RangeLookup
-    def self.parse(start_markup, end_markup)
-      start_obj = Expression.parse(start_markup)
-      end_obj = Expression.parse(end_markup)
-      if start_obj.respond_to?(:evaluate) || end_obj.respond_to?(:evaluate)
-        new(start_obj, end_obj)
-      else
-        start_obj.to_i..end_obj.to_i
-      end
-    end
-
-    def initialize(start_obj, end_obj)
-      @start_obj = start_obj
-      @end_obj = end_obj
-    end
-
-    def evaluate(context)
-      context.evaluate(@start_obj).to_i..context.evaluate(@end_obj).to_i
-    end
-  end
-end

lib/liquid/resource_limits.rb

@@ -1,23 +0,0 @@
-module Liquid
-  class ResourceLimits
-    attr_accessor :render_length, :render_score, :assign_score,
-      :render_length_limit, :render_score_limit, :assign_score_limit
-
-    def initialize(limits)
-      @render_length_limit = limits[:render_length_limit]
-      @render_score_limit = limits[:render_score_limit]
-      @assign_score_limit = limits[:assign_score_limit]
-      reset
-    end
-
-    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)
-    end
-
-    def reset
-      @render_length = @render_score = @assign_score = 0
-    end
-  end
-end

lib/liquid/standardfilters.rb

@@ -2,6 +2,7 @@ require 'cgi'
 require 'bigdecimal'
 
 module Liquid
+
   module StandardFilters
     HTML_ESCAPE = {
       '&'.freeze => '&'.freeze,
@@ -33,39 +34,25 @@ module Liquid
     end
 
     def escape(input)
-      CGI.escapeHTML(input).untaint rescue input
+      CGI.escapeHTML(input) rescue input
     end
-    alias_method :h, :escape
 
     def escape_once(input)
       input.to_s.gsub(HTML_ESCAPE_ONCE_REGEXP, HTML_ESCAPE)
     end
 
-    def url_encode(input)
-      CGI.escape(input) rescue input
-    end
-
-    def slice(input, offset, length = nil)
-      offset = Integer(offset)
-      length = length ? Integer(length) : 1
-
-      if input.is_a?(Array)
-        input.slice(offset, length) || []
-      else
-        input.to_s.slice(offset, length) || ''
-      end
-    end
+    alias_method :h, :escape
 
     # Truncate a string down to x characters
     def truncate(input, length = 50, truncate_string = "...".freeze)
-      return if input.nil?
+      if input.nil? then return end
       l = length.to_i - truncate_string.length
       l = 0 if l < 0
       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
       l = words.to_i - 1
       l = 0 if l < 0
@@ -78,7 +65,7 @@ module Liquid
     #   <div class="summary">{{ post | split '//' | first }}</div>
     #
     def split(input, pattern)
-      input.to_s.split(pattern)
+      input.split(pattern)
     end
 
     def strip(input)
@@ -105,56 +92,31 @@ module Liquid
 
     # Join elements of the array with certain character between them
     def join(input, glue = ' '.freeze)
-      InputIterator.new(input).join(glue)
+      [input].flatten.join(glue)
     end
 
     # Sort elements of the array
     # provide optional property with which to sort an array of hashes or drops
     def sort(input, property = nil)
-      ary = InputIterator.new(input)
+      ary = flatten_if_necessary(input)
       if property.nil?
         ary.sort
-      elsif ary.first.respond_to?(:[]) && !ary.first[property].nil?
-        ary.sort { |a, b| a[property] <=> b[property] }
+      elsif ary.first.respond_to?('[]'.freeze) and !ary.first[property].nil?
+        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
-
-    # 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.first.respond_to?(:[]) && !ary.first[property].nil?
-        ary.sort { |a, b| a[property].casecmp(b[property]) }
-      elsif ary.first.respond_to?(property)
-        ary.sort { |a, b| a.send(property).casecmp(b.send(property)) }
-      end
-    end
-
-    # Remove duplicate elements from an array
-    # provide optional property with which to determine uniqueness
-    def uniq(input, property = nil)
-      ary = InputIterator.new(input)
-      if property.nil?
-        input.uniq
-      elsif input.first.respond_to?(:[])
-        input.uniq{ |a| a[property] }
+        ary.sort {|a,b| a.send(property) <=> b.send(property) }
       end
     end
 
     # Reverse the elements of an array
     def reverse(input)
-      ary = InputIterator.new(input)
+      ary = [input].flatten
       ary.reverse
     end
 
     # map/collect on a given property
     def map(input, property)
-      InputIterator.new(input).map do |e|
+      flatten_if_necessary(input).map do |e|
         e = e.call if e.is_a?(Proc)
 
         if property == "to_liquid".freeze
@@ -190,10 +152,6 @@ module Liquid
       input.to_s + string.to_s
     end
 
-    def concat(input, array)
-      InputIterator.new(input).concat(array)
-    end
-
     # prepend a string to another
     def prepend(input, string)
       string.to_s + input.to_s
@@ -204,7 +162,7 @@ module Liquid
       input.to_s.gsub(/\n/, "<br />\n".freeze)
     end
 
-    # Reformat a date using Ruby's core Time#strftime( string ) -> string
+    # Reformat a date
     #
     #   %a - The abbreviated weekday name (``Sun'')
     #   %A - The  full  weekday  name (``Sunday'')
@@ -218,7 +176,6 @@ module Liquid
     #   %m - Month of the year (01..12)
     #   %M - Minute of the hour (00..59)
     #   %p - Meridian indicator (``AM''  or  ``PM'')
-    #   %s - Number of seconds since 1970-01-01 00:00:00 UTC.
     #   %S - Second of the minute (00..60)
     #   %U - Week  number  of the current year,
     #           starting with the first Sunday as the first
@@ -233,14 +190,34 @@ module Liquid
     #   %Y - Year with century
     #   %Z - Time zone name
     #   %% - Literal ``%'' character
-    #
-    #   See also: http://www.ruby-doc.org/core/Time.html#method-i-strftime
     def date(input, format)
-      return input if format.to_s.empty?
 
-      return input unless date = to_date(input)
+      if format.to_s.empty?
+        return input.to_s
+      end
 
-      date.strftime(format.to_s)
+      if ((input.is_a?(String) && !/\A\d+\z/.match(input.to_s).nil?) || input.is_a?(Integer)) && input.to_i > 0
+        input = Time.at(input.to_i)
+      end
+
+      date = if input.is_a?(String)
+        case input.downcase
+        when 'now'.freeze, 'today'.freeze
+          Time.now
+        else
+          Time.parse(input)
+        end
+      else
+        input
+      end
+
+      if date.respond_to?(:strftime)
+        date.strftime(format.to_s)
+      else
+        input
+      end
+    rescue
+      input
     end
 
     # Get the first element of the passed in array
@@ -285,21 +262,6 @@ module Liquid
       apply_operation(input, operand, :%)
     end
 
-    def round(input, n = 0)
-      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
-    end
-
-    def ceil(input)
-      to_number(input).ceil.to_i
-    end
-
-    def floor(input)
-      to_number(input).floor.to_i
-    end
-
     def default(input, default_value = "".freeze)
       is_blank = input.respond_to?(:empty?) ? input.empty? : !input
       is_blank ? default_value : input
@@ -307,6 +269,17 @@ module Liquid
 
     private
 
+    def flatten_if_necessary(input)
+      ary = if input.is_a?(Array)
+        input.flatten
+      elsif input.is_a?(Enumerable) && !input.is_a?(Hash)
+        input
+      else
+        [input].flatten
+      end
+      ary.map{ |e| e.respond_to?(:to_liquid) ? e.to_liquid : e }
+    end
+
     def to_number(obj)
       case obj
       when Float
@@ -320,64 +293,10 @@ module Liquid
       end
     end
 
-    def 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
-
     def apply_operation(input, operand, operation)
       result = to_number(input).send(operation, to_number(operand))
       result.is_a?(BigDecimal) ? result.to_f : result
     end
-
-    class InputIterator
-      include Enumerable
-
-      def initialize(input)
-        @input = if input.is_a?(Array)
-          input.flatten
-        elsif input.is_a?(Hash)
-          [input]
-        elsif input.is_a?(Enumerable)
-          input
-        else
-          Array(input)
-        end
-      end
-
-      def join(glue)
-        to_a.join(glue)
-      end
-
-      def concat(args)
-        to_a.concat args
-      end
-
-      def reverse
-        reverse_each.to_a
-      end
-
-      def each
-        @input.each do |e|
-          yield(e.respond_to?(:to_liquid) ? e.to_liquid : e)
-        end
-      end
-    end
   end
 
   Template.register_filter(StandardFilters)

lib/liquid/strainer.rb

@@ -1,19 +1,19 @@
 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.
   #
   # The Strainer only allows method calls defined in filters given to it via Strainer.global_filter,
   # Context#add_filters or Template.register_filter
   class Strainer #:nodoc:
-    @@global_strainer = Class.new(Strainer) do
-      @filter_methods = Set.new
-    end
+    @@filters = []
+    @@known_filters = Set.new
+    @@known_methods = Set.new
     @@strainer_class_cache = Hash.new do |hash, filters|
-      hash[filters] = Class.new(@@global_strainer) do
-        @filter_methods = @@global_strainer.filter_methods.dup
-        filters.each { |f| add_filter(f) }
+      hash[filters] = Class.new(Strainer) do
+        filters.each { |f| include f }
       end
     end
 
@@ -21,32 +21,33 @@ module Liquid
       @context = context
     end
 
-    class << self
-      attr_reader :filter_methods
+    def self.global_filter(filter)
+      raise ArgumentError, "Passed filter is not a module" unless filter.is_a?(Module)
+      add_known_filter(filter)
+      @@filters << filter unless @@filters.include?(filter)
     end
 
-    def self.add_filter(filter)
-      raise ArgumentError, "Expected module but got: #{f.class}" unless filter.is_a?(Module)
-      unless self.class.include?(filter)
-        send(:include, filter)
-        @filter_methods.merge(filter.public_instance_methods.map(&:to_s))
+    def self.add_known_filter(filter)
+      unless @@known_filters.include?(filter)
+        @@method_blacklist ||= Set.new(Strainer.instance_methods.map(&:to_s))
+        new_methods = filter.instance_methods.map(&:to_s)
+        new_methods.reject!{ |m| @@method_blacklist.include?(m) }
+        @@known_methods.merge(new_methods)
+        @@known_filters.add(filter)
       end
     end
 
-    def self.global_filter(filter)
-      @@global_strainer.add_filter(filter)
-    end
-
-    def self.invokable?(method)
-      @filter_methods.include?(method.to_s)
+    def self.strainer_class_cache
+      @@strainer_class_cache
     end
 
     def self.create(context, filters = [])
-      @@strainer_class_cache[filters].new(context)
+      filters = @@filters + filters
+      strainer_class_cache[filters].new(context)
     end
 
     def invoke(method, *args)
-      if self.class.invokable?(method)
+      if invokable?(method)
         send(method, *args)
       else
         args.first
@@ -54,5 +55,9 @@ module Liquid
     rescue ::ArgumentError => e
       raise Liquid::ArgumentError.new(e.message)
     end
+
+    def invokable?(method)
+      @@known_methods.include?(method.to_s) && respond_to?(method)
+    end
   end
 end

lib/liquid/tag.rb

@@ -1,8 +1,7 @@
 module Liquid
   class Tag
-    attr_accessor :options, :line_number
+    attr_accessor :options
     attr_reader :nodelist, :warnings
-    include ParserSwitching
 
     class << self
       def parse(tag_name, markup, tokens, options)
@@ -20,23 +19,42 @@ module Liquid
       @options    = options
     end
 
-    def parse(_tokens)
-    end
-
-    def raw
-      "#{@tag_name} #{@markup}"
+    def parse(tokens)
     end
 
     def name
       self.class.name.downcase
     end
 
-    def render(_context)
+    def render(context)
       ''.freeze
     end
 
     def blank?
-      false
+      @blank || false
     end
-  end
-end
+
+    def parse_with_selected_parser(markup)
+      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
+          @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.message << " in \"#{markup.strip}\"" 
+      raise e
+    end
+  end # Tag
+end # Liquid

lib/liquid/tags/assign.rb

@@ -1,4 +1,5 @@
 module Liquid
+
   # Assign sets a variable in your template.
   #
   #   {% assign foo = 'monkey' %}
@@ -14,8 +15,7 @@ module Liquid
       super
       if markup =~ Syntax
         @to = $1
-        @from = Variable.new($2, options)
-        @from.line_number = line_number
+        @from = Variable.new($2)
       else
         raise SyntaxError.new options[:locale].t("errors.syntax.assign".freeze)
       end
@@ -24,10 +24,7 @@ module Liquid
     def render(context)
       val = @from.render(context)
       context.scopes.last[@to] = val
-
-      inc = val.instance_of?(String) || val.instance_of?(Array) || val.instance_of?(Hash) ? val.length : 1
-      context.resource_limits.assign_score += inc
-
+      context.increment_used_resources(:assign_score_current, val)
       ''.freeze
     end
 

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)

lib/liquid/tags/capture.rb

@@ -1,4 +1,5 @@
 module Liquid
+
   # Capture stores the result of a block into a variable without rendering it inplace.
   #
   #   {% capture heading %}
@@ -11,7 +12,7 @@ module Liquid
   # in a sidebar or footer.
   #
   class Capture < Block
-    Syntax = /(#{VariableSignature}+)/o
+    Syntax = /(\w+)/
 
     def initialize(tag_name, markup, options)
       super
@@ -25,7 +26,7 @@ module Liquid
     def render(context)
       output = super
       context.scopes.last[@to] = output
-      context.resource_limits.assign_score += output.length
+      context.increment_used_resources(:assign_score_current, output)
       ''.freeze
     end
 

lib/liquid/tags/case.rb

@@ -8,24 +8,18 @@ module Liquid
       @blocks = []
 
       if markup =~ Syntax
-        @left = Expression.parse($1)
+        @left = $1
       else
         raise SyntaxError.new(options[:locale].t("errors.syntax.case".freeze))
       end
     end
 
-    def parse(tokens)
-      body = BlockBody.new
-      while more = parse_body(body, tokens)
-        body = @blocks.last.attachment
-      end
-    end
-
     def nodelist
-      @blocks.map(&:attachment)
+      @blocks.map(&:attachment).flatten
     end
 
     def unknown_tag(tag, markup, tokens)
+      @nodelist = []
       case tag
       when 'when'.freeze
         record_when_condition(markup)
@@ -43,10 +37,10 @@ module Liquid
         output = ''
         @blocks.each do |block|
           if block.else?
-            return block.attachment.render(context) if execute_else_block
+            return render_all(block.attachment, context) if execute_else_block
           elsif block.evaluate(context)
             execute_else_block = false
-            output << block.attachment.render(context)
+            output << render_all(block.attachment, context)
           end
         end
         output
@@ -56,28 +50,27 @@ module Liquid
     private
 
     def record_when_condition(markup)
-      body = BlockBody.new
-
       while markup
-        unless markup =~ WhenSyntax
+        # Create a new nodelist and assign it to the new block
+        if not markup =~ WhenSyntax
           raise SyntaxError.new(options[:locale].t("errors.syntax.case_invalid_when".freeze))
         end
 
         markup = $2
 
-        block = Condition.new(@left, '=='.freeze, Expression.parse($1))
-        block.attach(body)
-        @blocks << block
+        block = Condition.new(@left, '=='.freeze, $1)
+        block.attach(@nodelist)
+        @blocks.push(block)
       end
     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
 
       block = ElseCondition.new
-      block.attach(BlockBody.new)
+      block.attach(@nodelist)
       @blocks << block
     end
   end

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?

lib/liquid/tags/cycle.rb

@@ -20,10 +20,10 @@ module Liquid
       case markup
       when NamedSyntax
         @variables = variables_from_string($2)
-        @name = Expression.parse($1)
+        @name = $1
       when SimpleSyntax
         @variables = variables_from_string(markup)
-        @name = @variables.to_s
+        @name = "'#{@variables.to_s}'"
       else
         raise SyntaxError.new(options[:locale].t("errors.syntax.cycle".freeze))
       end
@@ -33,9 +33,9 @@ module Liquid
       context.registers[:cycle] ||= Hash.new(0)
 
       context.stack do
-        key = context.evaluate(@name)
+        key = context[@name]
         iteration = context.registers[:cycle][key]
-        result = context.evaluate(@variables[iteration])
+        result = context[@variables[iteration]]
         iteration += 1
         iteration  = 0  if iteration >= @variables.size
         context.registers[:cycle][key] = iteration
@@ -43,12 +43,15 @@ module Liquid
       end
     end
 
-    private
+    def blank?
+      false
+    end
 
+    private
     def variables_from_string(markup)
       markup.split(',').collect do |var|
         var =~ /\s*(#{QuotedFragment})\s*/o
-        $1 ? Expression.parse($1) : nil
+        $1 ? $1 : nil
       end.compact
     end
   end

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)

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.
   #
@@ -41,7 +42,6 @@ module Liquid
   #                   where 0 is the last item.
   # forloop.first:: Returns true if the item is the first item.
   # forloop.last:: Returns true if the item is the last item.
-  # forloop.parentloop:: Provides access to the parent loop, if present.
   #
   class For < Block
     Syntax = /\A(#{VariableSegment}+)\s+in\s+(#{QuotedFragment}+)\s*(reversed)?/o
@@ -49,43 +49,38 @@ module Liquid
     def initialize(tag_name, markup, options)
       super
       parse_with_selected_parser(markup)
-      @for_block = BlockBody.new
-    end
-
-    def parse(tokens)
-      return unless parse_body(@for_block, tokens)
-      parse_body(@else_block, tokens)
+      @nodelist = @for_block = []
     end
 
     def nodelist
-      @else_block ? [@for_block, @else_block] : [@for_block]
+      if @else_block
+        @for_block + @else_block
+      else
+        @for_block
+      end
     end
 
     def unknown_tag(tag, markup, tokens)
       return super unless tag == 'else'.freeze
-      @else_block = BlockBody.new
+      @nodelist = @else_block = []
     end
 
     def render(context)
-      for_offsets = context.registers[:for] ||= Hash.new(0)
-      for_stack = context.registers[:for_stack] ||= []
+      context.registers[:for] ||= Hash.new(0)
 
-      parent_loop = for_stack.last
-      for_stack.push(nil)
-
-      collection = context.evaluate(@collection_name)
+      collection = context[@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
-        for_offsets[@name].to_i
+      from = if @attributes['offset'.freeze] == 'continue'.freeze
+        context.registers[:for][@name].to_i
       else
-        context.evaluate(@from).to_i
+        context[@attributes['offset'.freeze]].to_i
       end
 
-      limit = context.evaluate(@limit)
+      limit = context[@attributes['limit'.freeze]]
       to    = limit ? limit.to_i + from : nil
 
       segment = Utils.slice_collection(collection, from, to)
@@ -99,27 +94,23 @@ module Liquid
       length = segment.length
 
       # Store our progress through the collection for the continue flag
-      for_offsets[@name] = from + segment.length
+      context.registers[:for][@name] = from + segment.length
 
       context.stack do
         segment.each_with_index do |item, index|
           context[@variable_name] = item
-          loop_vars = {
-            '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
+          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)
           }
 
-          context['forloop'.freeze] = loop_vars
-          for_stack[-1] = loop_vars
-
-          result << @for_block.render(context)
+          result << render_all(@for_block, context)
 
           # Handle any interrupts if they exist.
           if context.has_interrupt?
@@ -129,10 +120,7 @@ module Liquid
           end
         end
       end
-
       result
-    ensure
-      for_stack.pop
     end
 
     protected
@@ -140,12 +128,12 @@ module Liquid
     def lax_parse(markup)
       if markup =~ Syntax
         @variable_name = $1
-        collection_name = $2
+        @collection_name = $2
+        @name = "#{$1}-#{$2}"
         @reversed = $3
-        @name = "#{@variable_name}-#{collection_name}"
-        @collection_name = Expression.parse(collection_name)
+        @attributes = {}
         markup.scan(TagAttributes) do |key, value|
-          set_attribute(key, value)
+          @attributes[key] = value
         end
       else
         raise SyntaxError.new(options[:locale].t("errors.syntax.for".freeze))
@@ -156,38 +144,26 @@ module Liquid
       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)
-      collection_name = p.expression
-      @name = "#{@variable_name}-#{collection_name}"
-      @collection_name = Expression.parse(collection_name)
+      @collection_name = p.expression
+      @name = "#{@variable_name}-#{@collection_name}"
       @reversed = p.id?('reversed'.freeze)
 
+      @attributes = {}
       while p.look(:id) && p.look(:colon, 1)
         unless attribute = p.id?('limit'.freeze) || p.id?('offset'.freeze)
           raise SyntaxError.new(options[:locale].t("errors.syntax.for_invalid_attribute".freeze))
         end
         p.consume
-        set_attribute(attribute, p.expression)
+        val = p.expression
+        @attributes[attribute] = val
       end
       p.consume(:end_of_string)
     end
 
     private
 
-    def set_attribute(key, expr)
-      case key
-      when 'offset'.freeze
-        @from = if expr == 'continue'.freeze
-          :continue
-        else
-          Expression.parse(expr)
-        end
-      when 'limit'.freeze
-        @limit = Expression.parse(expr)
-      end
-    end
-
     def render_else(context)
-      @else_block ? @else_block.render(context) : ''.freeze
+      return @else_block ? [render_all(@else_block, context)] : ''.freeze
     end
 
     def iterable?(collection)

lib/liquid/tags/if.rb

@@ -20,13 +20,8 @@ module Liquid
       push_block('if'.freeze, markup)
     end
 
-    def parse(tokens)
-      while parse_body(@blocks.last.attachment, tokens)
-      end
-    end
-
     def nodelist
-      @blocks.map(&:attachment)
+      @blocks.map(&:attachment).flatten
     end
 
     def unknown_tag(tag, markup, tokens)
@@ -41,7 +36,7 @@ module Liquid
       context.stack do
         @blocks.each do |block|
           if block.evaluate(context)
-            return block.attachment.render(context)
+            return render_all(block.attachment, context)
           end
         end
         ''.freeze
@@ -50,61 +45,61 @@ 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)
+        @nodelist = block.attach(Array.new)
       end
 
-      @blocks.push(block)
-      block.attach(BlockBody.new)
-    end
+      def lax_parse(markup)
+        expressions = markup.scan(ExpressionsAndOperators).reverse
+        raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless expressions.shift =~ 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($1, $2, $3)
 
-      condition = Condition.new(Expression.parse($1), $2, Expression.parse($3))
+        while not expressions.empty?
+          operator = (expressions.shift).to_s.strip
 
-      until expressions.empty?
-        operator = expressions.pop.to_s.strip
+          raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless expressions.shift.to_s =~ Syntax
 
-        raise(SyntaxError.new(options[:locale].t("errors.syntax.if".freeze))) unless expressions.pop.to_s =~ Syntax
+          new_condition = Condition.new($1, $2, $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_comparison(p)
 
-      condition = parse_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)
 
-      while op = (p.id?('and'.freeze) || p.id?('or'.freeze))
-        new_cond = parse_comparison(p)
-        new_cond.send(op, condition)
-        condition = new_cond
+        condition
       end
-      p.consume(:end_of_string)
 
-      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 = p.expression
+        if op = p.consume?(:comparison)
+          b = p.expression
+          Condition.new(a, op, b)
+        else
+          Condition.new(a)
+        end
       end
-    end
   end
 
   Template.register_tag('if'.freeze, If)

lib/liquid/tags/ifchanged.rb

@@ -1,8 +1,10 @@
 module Liquid
   class Ifchanged < Block
+
     def render(context)
       context.stack do
-        output = super
+
+        output = render_all(@nodelist, context)
 
         if output != context.registers[:ifchanged]
           context.registers[:ifchanged] = output

lib/liquid/tags/include.rb

@@ -1,4 +1,5 @@
 module Liquid
+
   # Include allows templates to relate with other templates
   #
   # Simply include another template:
@@ -21,15 +22,12 @@ module Liquid
 
       if markup =~ Syntax
 
-        template_name = $1
-        variable_name = $3
-
-        @variable_name_expr = variable_name ? Expression.parse(variable_name) : nil
-        @template_name_expr = Expression.parse(template_name)
-        @attributes = {}
+        @template_name = $1
+        @variable_name = $3
+        @attributes    = {}
 
         markup.scan(TagAttributes) do |key, value|
-          @attributes[key] = Expression.parse(value)
+          @attributes[key] = value
         end
 
       else
@@ -37,74 +35,63 @@ module Liquid
       end
     end
 
-    def parse(_tokens)
+    def parse(tokens)
+    end
+
+    def blank?
+      false
     end
 
     def render(context)
-      template_name = context.evaluate(@template_name_expr)
-      partial = load_cached_partial(template_name, context)
+      partial = load_cached_partial(context)
+      variable = context[@variable_name || @template_name[1..-2]]
 
-      context_variable_name = template_name.split('/'.freeze).last
+      context.stack do
+        @attributes.each do |key, value|
+          context[key] = context[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
-      begin
-        context.template_name = template_name
-        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
+        context_variable_name = @template_name[1..-2].split('/'.freeze).last
+        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
       end
     end
 
     private
+      def load_cached_partial(context)
+        cached_partials = context.registers[:cached_partials] || {}
+        template_name = context[@template_name]
 
-    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)
+        cached_partials[template_name] = partial
+        context.registers[:cached_partials] = cached_partials
+        partial
       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
 
-    def read_template_from_file_system(context)
-      file_system = context.registers[:file_system] || Liquid::Template.file_system
+      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) }
+        # make read_template_file call backwards-compatible.
+        case file_system.method(:read_template_file).arity
+        when 1
+          file_system.read_template_file(context[@template_name])
+        when 2
+          file_system.read_template_file(context[@template_name], context)
+        else
+          raise ArgumentError, "file_system.read_template_file expects two parameters: (template_name, context)"
+        end
       end
-      opts
-    end
   end
 
   Template.register_tag('include'.freeze, Include)

lib/liquid/tags/increment.rb

@@ -25,6 +25,10 @@ module Liquid
       context.environments.first[@variable] = value + 1
       value.to_s
     end
+
+    def blank?
+      false
+    end
   end
 
   Template.register_tag('increment'.freeze, Increment)

lib/liquid/tags/raw.rb

@@ -3,27 +3,19 @@ module Liquid
     FullTokenPossiblyInvalid = /\A(.*)#{TagStart}\s*(\w+)\s*(.*)?#{TagEnd}\z/om
 
     def parse(tokens)
-      @body = ''
+      @nodelist ||= []
+      @nodelist.clear
       while token = tokens.shift
         if token =~ FullTokenPossiblyInvalid
-          @body << $1 if $1 != "".freeze
-          return if block_delimiter == $2
+          @nodelist << $1 if $1 != "".freeze
+          if block_delimiter == $2
+            end_tag
+            return
+          end
         end
-        @body << token unless token.empty?
+        @nodelist << token if not token.empty?
       end
     end
-
-    def render(_context)
-      @body
-    end
-
-    def nodelist
-      [@body]
-    end
-
-    def blank?
-      @body.empty?
-    end
   end
 
   Template.register_tag('raw'.freeze, Raw)

lib/liquid/tags/table_row.rb

@@ -6,10 +6,10 @@ module Liquid
       super
       if markup =~ Syntax
         @variable_name = $1
-        @collection_name = Expression.parse($2)
+        @collection_name = $2
         @attributes = {}
         markup.scan(TagAttributes) do |key, value|
-          @attributes[key] = Expression.parse(value)
+          @attributes[key] = value
         end
       else
         raise SyntaxError.new(options[:locale].t("errors.syntax.table_row".freeze))
@@ -17,22 +17,23 @@ module Liquid
     end
 
     def render(context)
-      collection = context.evaluate(@collection_name) or return ''.freeze
+      collection = context[@collection_name] or return ''.freeze
 
-      from = @attributes.key?('offset'.freeze) ? context.evaluate(@attributes['offset'.freeze]).to_i : 0
-      to = @attributes.key?('limit'.freeze) ? from + context.evaluate(@attributes['limit'.freeze]).to_i : nil
+      from = @attributes['offset'.freeze] ? context[@attributes['offset'.freeze]].to_i : 0
+      to = @attributes['limit'.freeze] ? from + context[@attributes['limit'.freeze]].to_i : nil
 
       collection = Utils.slice_collection(collection, from, to)
 
       length = collection.length
 
-      cols = context.evaluate(@attributes['cols'.freeze]).to_i
+      cols = context[@attributes['cols'.freeze]].to_i
 
       row = 1
       col = 0
 
       result = "<tr class=\"row1\">\n"
       context.stack do
+
         collection.each_with_index do |item, index|
           context[@variable_name] = item
           context['tablerowloop'.freeze] = {
@@ -41,6 +42,7 @@ module Liquid
             'index0'.freeze    => index,
             'col'.freeze       => col + 1,
             'col0'.freeze      => col,
+            'index0'.freeze    => index,
             'rindex'.freeze    => length - index,
             'rindex0'.freeze   => length - index - 1,
             'first'.freeze     => (index == 0),
@@ -49,15 +51,17 @@ module Liquid
             'col_last'.freeze  => (col == cols - 1)
           }
 
+
           col += 1
 
-          result << "<td class=\"col#{col}\">" << super << '</td>'
+          result << "<td class=\"col#{col}\">" << render_all(@nodelist, context) << '</td>'
 
-          if col == cols && (index != length - 1)
+          if col == cols and (index != length - 1)
             col  = 0
             row += 1
             result << "</tr>\n<tr class=\"row#{row}\">"
           end
+
         end
       end
       result << "</tr>\n"

lib/liquid/tags/unless.rb

@@ -1,23 +1,24 @@
-require_relative 'if'
+require File.dirname(__FILE__) + '/if'
 
 module Liquid
   # Unless is a conditional just like 'if' but works on the inverse logic.
   #
-  #   {% unless x < 0 %} x is greater than zero {% endunless %}
+  #   {% unless x < 0 %} x is greater than zero {% end %}
   #
   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)
-          return first_block.attachment.render(context)
+          return render_all(first_block.attachment, context)
         end
 
         # After the first condition unless works just like if
         @blocks[1..-1].each do |block|
           if block.evaluate(context)
-            return block.attachment.render(context)
+            return render_all(block.attachment, context)
           end
         end
 

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.
@@ -14,59 +15,13 @@ module Liquid
   #
   class Template
     DEFAULT_OPTIONS = {
-      locale: I18n.new
+      :locale => I18n.new
     }
 
-    attr_accessor :root, :render_errors
-    attr_reader :resource_limits
-
+    attr_accessor :root, :resource_limits
     @@file_system = BlankFileSystem.new
 
-    class TagRegistry
-      def initialize
-        @tags  = {}
-        @cache = {}
-      end
-
-      def [](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 }
-      end
-
-      def []=(tag_name, klass)
-        @tags[tag_name]  = klass.name
-        @cache[tag_name] = klass
-      end
-
-      def delete(tag_name)
-        @tags.delete(tag_name)
-        @cache.delete(tag_name)
-      end
-
-      private
-
-      def lookup_class(name)
-        name.split("::").reject(&:empty?).reduce(Object) { |scope, const| scope.const_get(const) }
-      end
-    end
-
-    attr_reader :profiler
-
     class << self
-      # Sets how strict the parser should be.
-      # :lax acts like liquid 2.5 and silently ignores malformed tags in most cases.
-      # :warn is the default and will give deprecation warnings when invalid syntax is used.
-      # :strict will enforce correct syntax.
-      attr_writer :error_mode
-
-      # Sets how strict the taint checker should be.
-      # :lax is the default, and ignores the taint flag completely
-      # :warn adds a warning, but does not interrupt the rendering
-      # :error raises an error when tainted output is used
-      attr_writer :taint_mode
-
       def file_system
         @@file_system
       end
@@ -80,47 +35,43 @@ module Liquid
       end
 
       def tags
-        @tags ||= TagRegistry.new
+        @tags ||= {}
+      end
+
+      # Sets how strict the parser should be.
+      # :lax acts like liquid 2.5 and silently ignores malformed tags in most cases.
+      # :warn is the default and will give deprecation warnings when invalid syntax is used.
+      # :strict will enforce correct syntax.
+      def error_mode=(mode)
+        @error_mode = mode
       end
 
       def error_mode
         @error_mode || :lax
       end
 
-      def taint_mode
-        @taint_mode || :lax
-      end
-
       # Pass a module with filter methods which should be available
       # to all liquid views. Good for registering the standard library
       def register_filter(mod)
         Strainer.global_filter(mod)
       end
 
-      def default_resource_limits
-        @default_resource_limits ||= {}
-      end
-
       # creates a new <tt>Template</tt> object from liquid source code
-      # To enable profiling, pass in <tt>profile: true</tt> as an option.
-      # See Liquid::Profiler for more information
       def parse(source, options = {})
         template = Template.new
         template.parse(source, options)
+        template
       end
     end
 
+    # creates a new <tt>Template</tt> from an array of tokens. Use <tt>Template.parse</tt> instead
     def initialize
-      @resource_limits = ResourceLimits.new(self.class.default_resource_limits)
-      @render_errors = true
+      @resource_limits = {}
     end
 
     # Parse source code.
     # Returns self for easy chaining
     def parse(source, options = {})
-      @options = options
-      @profiling = options[:profile]
-      @line_numbers = options[:line_numbers] || @profiling
       @root = Document.parse(tokenize(source), DEFAULT_OPTIONS.merge(options))
       @warnings = nil
       self
@@ -152,9 +103,6 @@ module Liquid
     # if you use the same filters over and over again consider registering them globally
     # with <tt>Template.register_filter</tt>
     #
-    # if profiling was enabled in <tt>Template#parse</tt> then the resulting profiling information
-    # will be available via <tt>Template#profiler</tt>
-    #
     # Following options can be passed:
     #
     #  * <tt>filters</tt> : array with local filters
@@ -164,24 +112,16 @@ module Liquid
     def render(*args)
       return ''.freeze if @root.nil?
 
-      render_errors = self.render_errors
-
       context = case args.first
       when Liquid::Context
-        c = args.shift
-
-        if @rethrow_errors
-          c.exception_handler = ->(e) { true }
-        end
-
-        c
+        args.shift
       when Liquid::Drop
         drop = args.shift
-        drop.context = Context.new([drop, assigns], instance_assigns, registers, @rethrow_errors, @resource_limits, render_errors)
+        drop.context = Context.new([drop, assigns], instance_assigns, registers, @rethrow_errors, @resource_limits)
       when Hash
-        Context.new([args.shift, assigns], instance_assigns, registers, @rethrow_errors, @resource_limits, render_errors)
+        Context.new([args.shift, assigns], instance_assigns, registers, @rethrow_errors, @resource_limits)
       when nil
-        Context.new(assigns, instance_assigns, registers, @rethrow_errors, @resource_limits, render_errors)
+        Context.new(assigns, instance_assigns, registers, @rethrow_errors, @resource_limits)
       else
         raise ArgumentError, "Expected Hash or Liquid::Context as parameter"
       end
@@ -191,31 +131,23 @@ module Liquid
         options = args.pop
 
         if options[:registers].is_a?(Hash)
-          registers.merge!(options[:registers])
+          self.registers.merge!(options[:registers])
         end
 
         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
 
-      # Retrying a render resets resource usage
-      context.resource_limits.reset
-
       begin
         # render the nodelist.
         # for performance reasons we get an array back here. join will make a string out of it.
-        result = with_profiling do
-          @root.render(context)
-        end
+        result = @root.render(context)
         result.respond_to?(:join) ? result.join : result
       rescue Liquid::MemoryError => e
         context.handle_error(e)
@@ -225,51 +157,15 @@ module Liquid
     end
 
     def render!(*args)
-      @rethrow_errors = true
-      render(*args)
+      @rethrow_errors = true; render(*args)
     end
 
     private
 
-    # Uses the <tt>Liquid::TemplateParser</tt> regexp to tokenize the passed source
     def tokenize(source)
       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] && tokens[0].empty?
-
-      tokens
+      Tokenizer.new(source.to_s)
     end
 
-    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
-        @profiler.start
-
-        begin
-          yield
-        ensure
-          @profiler.stop
-        end
-      else
-        yield
-      end
-    end
   end
 end

lib/liquid/token.rb

@@ -1,18 +0,0 @@
-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

lib/liquid/tokenizer.rb

@@ -0,0 +1,20 @@
+module Liquid
+  class Tokenizer
+    VariableIncompleteEnd = /\}\}?/
+    AnyStartingTag        = /\{\{|\{\%/
+    PartialTemplateParser = /#{TagStart}.*?#{TagEnd}|#{VariableStart}.*?#{VariableIncompleteEnd}/om
+    TemplateParser        = /(#{PartialTemplateParser}|#{AnyStartingTag})/om
+
+    def initialize(source)
+      @tokens = source.split(TemplateParser)
+
+      # removes the rogue empty element at the beginning of the array
+      @tokens.shift if @tokens[0] && @tokens[0].empty?
+    end
+
+    def next
+      @tokens.shift
+    end
+    alias_method :shift, :next
+  end
+end

lib/liquid/utils.rb

@@ -1,7 +1,8 @@
 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)
@@ -20,6 +21,7 @@ module Liquid
       return [collection] if non_blank_string?(collection)
 
       collection.each do |item|
+
         if to && to <= index
           break
         end

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
   #
@@ -10,113 +11,96 @@ module Liquid
   #   {{ user | link }}
   #
   class Variable
-    FilterParser = /(?:\s+|#{QuotedFragment}|#{ArgumentSeparator})+/o
+    FilterParser = /(?:#{FilterSeparator}|(?:\s*(?:#{QuotedFragment}|#{ArgumentSeparator})\s*)+)/o
+    EasyParse = /\A *(\w+(?:\.\w+)*) *\z/
     attr_accessor :filters, :name, :warnings
-    attr_accessor :line_number
-    include ParserSwitching
 
     def initialize(markup, options = {})
       @markup  = markup
       @name    = nil
       @options = options || {}
 
-      parse_with_selected_parser(markup)
-    end
-
-    def raw
-      @markup
-    end
-
-    def markup_context(markup)
-      "in \"{{#{markup}}}\""
+      case @options[:error_mode] || Template.error_mode
+      when :strict then strict_parse(markup)
+      when :lax    then lax_parse(markup)
+      when :warn
+        begin
+          strict_parse(markup)
+        rescue SyntaxError => e
+          @warnings ||= []
+          @warnings << e
+          lax_parse(markup)
+        end
+      end
     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|
-          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)
+      if match = markup.match(/\s*(#{QuotedFragment})(.*)/om)
+        @name = match[1]
+        if match[2].match(/#{FilterSeparator}\s*(.*)/om)
+          filters = Regexp.last_match(1).scan(FilterParser)
+          filters.each do |f|
+            if matches = f.match(/\s*(\w+)/)
+              filtername = matches[1]
+              filterargs = f.scan(/(?:#{FilterArgumentSeparator}|#{ArgumentSeparator})\s*((?:\w+\s*\:\s*)?#{QuotedFragment})/o).flatten
+              @filters << [filtername, filterargs]
+            end
           end
         end
       end
     end
 
     def strict_parse(markup)
+      # Very simple valid cases
+      if markup =~ EasyParse
+        @name = $1
+        @filters = []
+        return
+      end
+
       @filters = []
       p = Parser.new(markup)
-
-      @name = Expression.parse(p.expression)
+      # Could be just filters with no input
+      @name = p.look(:pipe) ? ''.freeze : p.expression
       while p.consume?(:pipe)
         filtername = p.consume(:id)
         filterargs = p.consume?(:colon) ? parse_filterargs(p) : []
-        @filters << parse_filter_expressions(filtername, filterargs)
+        @filters << [filtername, filterargs]
       end
       p.consume(:end_of_string)
+    rescue SyntaxError => e
+      e.message << " in \"{{#{markup}}}\""
+      raise e
     end
 
     def parse_filterargs(p)
       # 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)
-      @filters.inject(context.evaluate(@name)) do |output, (filter_name, filter_args, filter_kwargs)|
-        filter_args = evaluate_filter_expressions(context, filter_args, filter_kwargs)
-        output = context.invoke(filter_name, output, *filter_args)
-      end.tap{ |obj| taint_check(obj) }
-    end
-
-    private
-
-    def parse_filter_expressions(filter_name, unparsed_args)
-      filter_args = []
-      keyword_args = {}
-      unparsed_args.each do |a|
-        if matches = a.match(/\A#{TagAttributes}\z/o)
-          keyword_args[matches[1]] = Expression.parse(matches[2])
-        else
-          filter_args << Expression.parse(a)
+      return ''.freeze if @name.nil?
+      @filters.inject(context[@name]) do |output, filter|
+        filterargs = []
+        keyword_args = {}
+        filter[1].to_a.each do |a|
+          if matches = a.match(/\A#{TagAttributes}\z/o)
+            keyword_args[matches[1]] = context[matches[2]]
+          else
+            filterargs << context[a]
+          end
         end
-      end
-      result = [filter_name, filter_args]
-      result << keyword_args unless keyword_args.empty?
-      result
-    end
-
-    def evaluate_filter_expressions(context, filter_args, filter_kwargs)
-      parsed_args = filter_args.map{ |expr| context.evaluate(expr) }
-      if filter_kwargs
-        parsed_kwargs = {}
-        filter_kwargs.each do |key, expr|
-          parsed_kwargs[key] = context.evaluate(expr)
-        end
-        parsed_args << parsed_kwargs
-      end
-      parsed_args
-    end
-
-    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"
+        filterargs << keyword_args unless keyword_args.empty?
+        begin
+          output = context.invoke(filter[0], output, *filterargs)
+        rescue FilterNotFound
+          raise FilterNotFound, "Error - filter '#{filter[0]}' in '#{@markup.strip}' could not be found."
         end
       end
     end

lib/liquid/variable_lookup.rb

@@ -1,80 +0,0 @@
-module Liquid
-  class VariableLookup
-    SQUARE_BRACKETED = /\A\[(.*)\]\z/m
-    COMMAND_METHODS = ['size'.freeze, 'first'.freeze, 'last'.freeze]
-
-    attr_reader :name, :lookups
-
-    def self.parse(markup)
-      new(markup)
-    end
-
-    def initialize(markup)
-      lookups = markup.scan(VariableParser)
-
-      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]
-        if lookup =~ SQUARE_BRACKETED
-          lookups[i] = Expression.parse($1)
-        elsif COMMAND_METHODS.include?(lookup)
-          @command_flags |= 1 << i
-        end
-      end
-    end
-
-    def evaluate(context)
-      name = context.evaluate(@name)
-      object = context.find_variable(name)
-
-      @lookups.each_index do |i|
-        key = context.evaluate(@lookups[i])
-
-        # 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?(: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)
-          object = res.to_liquid
-
-          # Some special cases. If the part wasn't in square brackets and
-          # no key with the same name was found we interpret following calls
-          # as commands and call them on the current object
-        elsif @command_flags & (1 << i) != 0 && object.respond_to?(key)
-          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
-        else
-          return nil
-        end
-
-        # If we are dealing with a drop here we have to
-        object.context = context if object.respond_to?(:context=)
-      end
-
-      object
-    end
-
-    def ==(other)
-      self.class == other.class && state == other.state
-    end
-
-    protected
-
-    def state
-      [@name, @lookups, @command_flags]
-    end
-  end
-end

lib/liquid/version.rb

@@ -1,4 +1,4 @@
 # encoding: utf-8
 module Liquid
-  VERSION = "4.0.0.alpha"
+  VERSION = "3.0.0".freeze
 end

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"
 
@@ -9,21 +9,26 @@ Gem::Specification.new do |s|
   s.version     = Liquid::VERSION
   s.platform    = Gem::Platform::RUBY
   s.summary     = "A secure, non-evaling end user template engine with aesthetic markup."
-  s.authors     = ["Tobias Lütke"]
+  s.authors     = ["Tobias Luetke"]
   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_rubygems_version = ">= 1.3.7"
 
   s.test_files  = Dir.glob("{test}/**/*")
-  s.files       = Dir.glob("{lib}/**/*") + %w(MIT-LICENSE README.md)
+  s.files       = Dir.glob("{lib,ext}/**/*") + %w(MIT-LICENSE README.md)
 
   s.extra_rdoc_files  = ["History.md", "README.md"]
 
   s.require_path = "lib"
 
   s.add_development_dependency 'rake'
-  s.add_development_dependency 'minitest'
+  s.add_development_dependency 'activesupport'
+  if defined?(RUBY_ENGINE) && RUBY_ENGINE == 'ruby'
+    s.extensions  = ['ext/liquid/extconf.rb']
+    s.add_development_dependency 'rake-compiler'
+    s.add_development_dependency 'stackprof' if Gem::Version.new(RUBY_VERSION) >= Gem::Version.new("2.1.0")
+  end
 end

performance/benchmark.rb

@@ -1,17 +1,12 @@
-require 'benchmark/ips'
-require_relative 'theme_runner'
+require 'rubygems'
+require 'benchmark'
+require File.dirname(__FILE__) + '/theme_runner'
 
 Liquid::Template.error_mode = ARGV.first.to_sym if ARGV.first
 profiler = ThemeRunner.new
 
-Benchmark.ips do |x|
-  x.time = 60
-  x.warmup = 5
-
-  puts
-  puts "Running benchmark for #{x.time} seconds (with #{x.warmup} seconds warmup)."
-  puts
-
-  x.report("parse:") { profiler.compile }
-  x.report("parse & run:") { profiler.run }
+Benchmark.bmbm do |x|
+  x.report("parse:")   { 100.times { profiler.compile } }
+  x.report("parse & run:")   { 100.times { profiler.run } }
 end
+

performance/profile.rb

@@ -1,24 +1,13 @@
 require 'stackprof' rescue fail("install stackprof extension/gem")
-require_relative 'theme_runner'
+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..."
-  results = StackProf.run(mode: profile_type) do
-    200.times do
-      profiler.run
-    end
+results = StackProf.run(mode: :cpu) do
+  100.times do
+    profiler.run
   end
-
-  if profile_type == :cpu && graph_filename = ENV['GRAPH_FILENAME']
-    File.open(graph_filename, 'w') do |f|
-      StackProf::Report.new(results).print_graphviz(nil, f)
-    end
-  end
-
-  StackProf::Report.new(results).print_text(false, 20)
-  File.write(ENV['FILENAME'] + "." + profile_type.to_s, Marshal.dump(results)) if ENV['FILENAME']
 end
+StackProf::Report.new(results).print_text(false, 20)
+File.write(ENV['FILENAME'], Marshal.dump(results)) if ENV['FILENAME']

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

performance/shopify/database.rb

@@ -1,11 +1,11 @@
 require 'yaml'
-
 module Database
+
   # Load the standard vision toolkit database and re-arrage it to be simply exportable
   # 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

performance/shopify/json_filter.rb

@@ -1,7 +1,7 @@
-require 'json'
-
 module JsonFilter
+
   def json(object)
-    JSON.dump(object.reject { |k, v| k == "collections" })
+    object.reject {|k,v| k == "collections" }.to_json
   end
+
 end

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

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

performance/shopify/paginate.rb

@@ -4,6 +4,8 @@ class Paginate < Liquid::Block
   def initialize(tag_name, markup, options)
     super
 
+    @nodelist = []
+
     if markup =~ Syntax
       @collection_name = $1
       @page_size = if $2
@@ -42,22 +44,23 @@ 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
@@ -70,18 +73,18 @@ class Paginate < Liquid::Block
         end
       end
 
-      super
+      render_all(@nodelist, context)
     end
   end
 
   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

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

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

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

performance/theme_runner.rb

@@ -6,17 +6,23 @@
 # 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 'rubygems'
+require 'active_support'
+require 'active_support/json'
+require 'yaml'
+require 'digest/md5'
+require File.dirname(__FILE__) + '/shopify/liquid'
+require File.dirname(__FILE__) + '/shopify/database.rb'
 
 class ThemeRunner
   class FileSystem
+
     def initialize(path)
       @path = path
     end
 
     # Called by Liquid to retrieve a template file
-    def read_template_file(template_path)
+    def read_template_file(template_path, context)
       File.read(@path + '/' + template_path + '.liquid')
     end
   end
@@ -24,7 +30,7 @@ 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 +43,7 @@ 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 +51,20 @@ 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'
@@ -71,3 +81,6 @@ class ThemeRunner
     end
   end
 end
+
+
+

test/integration/assign_test.rb

@@ -1,48 +0,0 @@
-require 'test_helper'
-
-class AssignTest < Minitest::Test
-  include Liquid
-
-  def test_assign_with_hyphen_in_variable_name
-    template_source = <<-END_TEMPLATE
-    {% assign this-thing = 'Print this-thing' %}
-    {{ this-thing }}
-    END_TEMPLATE
-    template = Template.parse(template_source)
-    rendered = template.render!
-    assert_equal "Print this-thing", rendered.strip
-  end
-
-  def test_assigned_variable
-    assert_template_result('.foo.',
-      '{% assign foo = values %}.{{ foo[0] }}.',
-      'values' => %w(foo bar baz))
-
-    assert_template_result('.bar.',
-      '{% 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")
-  end
-
-  def test_assign_syntax_error
-    assert_match_syntax_error(/assign/,
-      '{% assign foo not values %}.',
-      'values' => "foo,bar,baz")
-  end
-
-  def test_assign_uses_error_mode
-    with_error_mode(:strict) do
-      assert_raises(SyntaxError) do
-        Template.parse("{% assign foo = ('X' | downcase) %}")
-      end
-    end
-    with_error_mode(:lax) do
-      assert Template.parse("{% assign foo = ('X' | downcase) %}")
-    end
-  end
-end # AssignTest

test/integration/context_test.rb

@@ -1,32 +0,0 @@
-require 'test_helper'
-
-class ContextTest < Minitest::Test
-  include Liquid
-
-  def test_override_global_filter
-    global = Module.new do
-      def notice(output)
-        "Global #{output}"
-      end
-    end
-
-    local = Module.new do
-      def notice(output)
-        "Local #{output}"
-      end
-    end
-
-    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])
-    end
-  end
-
-  def test_has_key_will_not_add_an_error_for_missing_keys
-    with_error_mode :strict do
-      context = Context.new
-      context.has_key?('unknown')
-      assert_empty context.errors
-    end
-  end
-end

test/integration/document_test.rb

@@ -1,19 +0,0 @@
-require 'test_helper'
-
-class DocumentTest < Minitest::Test
-  include Liquid
-
-  def test_unexpected_outer_tag
-    exc = assert_raises(SyntaxError) do
-      Template.parse("{% else %}")
-    end
-    assert_equal exc.message, "Liquid syntax error: Unexpected outer 'else' tag"
-  end
-
-  def test_unknown_tag
-    exc = assert_raises(SyntaxError) do
-      Template.parse("{% foo %}")
-    end
-    assert_equal exc.message, "Liquid syntax error: Unknown tag 'foo'"
-  end
-end

test/integration/error_handling_test.rb

@@ -1,188 +0,0 @@
-require 'test_helper'
-
-class ErrorHandlingTest < Minitest::Test
-  include Liquid
-
-  def test_templates_parsed_with_line_numbers_renders_them_in_errors
-    template = <<-LIQUID
-      Hello,
-
-      {{ errors.standard_error }} will raise a standard error.
-
-      Bla bla test.
-
-      {{ errors.syntax_error }} will raise a syntax error.
-
-      This is an argument error: {{ errors.argument_error }}
-
-      Bla.
-    LIQUID
-
-    expected = <<-TEXT
-      Hello,
-
-      Liquid error (line 3): standard error will raise a standard error.
-
-      Bla bla test.
-
-      Liquid syntax error (line 7): syntax error will raise a syntax error.
-
-      This is an argument error: Liquid error (line 9): argument error
-
-      Bla.
-    TEXT
-
-    output = Liquid::Template.parse(template, line_numbers: true).render('errors' => ErrorDrop.new)
-    assert_equal expected, output
-  end
-
-  def test_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
-    assert_equal StandardError, template.errors.first.class
-  end
-
-  def test_syntax
-    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
-    assert_equal SyntaxError, template.errors.first.class
-  end
-
-  def test_argument
-    template = Liquid::Template.parse(' {{ errors.argument_error }} ')
-    assert_equal ' Liquid error: argument error ', template.render('errors' => ErrorDrop.new)
-
-    assert_equal 1, template.errors.size
-    assert_equal ArgumentError, template.errors.first.class
-  end
-
-  def test_missing_endtag_parse_time_error
-    assert_raises(Liquid::SyntaxError) do
-      Liquid::Template.parse(' {% for a in b %} ... ')
-    end
-  end
-
-  def test_unrecognized_operator
-    with_error_mode(:strict) do
-      assert_raises(SyntaxError) do
-        Liquid::Template.parse(' {% if 1 =! 2 %}ok{% endif %} ')
-      end
-    end
-  end
-
-  def test_lax_unrecognized_operator
-    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
-  end
-
-  def test_with_line_numbers_adds_numbers_to_parser_errors
-    err = assert_raises(SyntaxError) do
-      template = Liquid::Template.parse(%q(
-          foobar
-
-          {% "cat" | foobar %}
-
-          bla
-                ),
-        :line_numbers => true
-                                       )
-    end
-
-    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('
-        foobar
-
-        {% if 1 =! 2 %}ok{% endif %}
-
-        bla
-            ',
-      :error_mode => :warn,
-      :line_numbers => true
-                                     )
-
-    assert_equal ['Liquid syntax error (line 4): Unexpected character = in "1 =! 2"'],
-      template.warnings.map(&:message)
-  end
-
-  def test_parsing_strict_with_line_numbers_adds_numbers_to_lexer_errors
-    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse('
-          foobar
-
-          {% if 1 =! 2 %}ok{% endif %}
-
-          bla
-                ',
-        :error_mode => :strict,
-        :line_numbers => true
-                            )
-    end
-
-    assert_equal 'Liquid syntax error (line 4): Unexpected character = in "1 =! 2"', err.message
-  end
-
-  def test_syntax_errors_in_nested_blocks_have_correct_line_number
-    err = assert_raises(SyntaxError) do
-      Liquid::Template.parse('
-          foobar
-
-          {% if 1 != 2 %}
-            {% foo %}
-          {% endif %}
-
-          bla
-                ',
-        :line_numbers => true
-                            )
-    end
-
-    assert_equal "Liquid syntax error (line 5): Unknown tag 'foo'", err.message
-  end
-
-  def test_strict_error_messages
-    err = assert_raises(SyntaxError) do
-      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)
-    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)
-    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)
-    assert_equal 'Expected id but found end_of_string in "{{ hello. }}"', template.warnings[2].to_s(false)
-    assert_equal '', template.render
-  end
-
-  def test_warning_line_numbers
-    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)
-  end
-
-  # Liquid should not catch Exceptions that are not subclasses of StandardError, like Interrupt and NoMemoryError
-  def test_exceptions_propagate
-    assert_raises Exception do
-      template = Liquid::Template.parse('{{ errors.exception }}')
-      template.render('errors' => ErrorDrop.new)
-    end
-  end
-end

test/integration/hash_ordering_test.rb

@@ -1,23 +0,0 @@
-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
-  include Liquid
-
-  def test_global_register_order
-    with_global_filter(MoneyFilter, CanadianMoneyFilter) do
-      assert_equal " 1000$ CAD ", Template.parse("{{1000 | money}}").render(nil, nil)
-    end
-  end
-end

test/integration/parsing_quirks_test.rb

@@ -1,119 +0,0 @@
-require 'test_helper'
-
-class ParsingQuirksTest < Minitest::Test
-  include Liquid
-
-  def test_parsing_css
-    text = " div { font-weight: bold; } "
-    assert_equal text, Template.parse(text).render!
-  end
-
-  def test_raise_on_single_close_bracet
-    assert_raises(SyntaxError) do
-      Template.parse("text {{method} oh nos!")
-    end
-  end
-
-  def test_raise_on_label_and_no_close_bracets
-    assert_raises(SyntaxError) do
-      Template.parse("TEST {{ ")
-    end
-  end
-
-  def test_raise_on_label_and_no_close_bracets_percent
-    assert_raises(SyntaxError) do
-      Template.parse("TEST {% ")
-    end
-  end
-
-  def test_error_on_empty_filter
-    assert Template.parse("{{test}}")
-
-    with_error_mode(:lax) do
-      assert Template.parse("{{|test}}")
-    end
-
-    with_error_mode(:strict) do
-      assert_raises(SyntaxError) { Template.parse("{{|test}}") }
-      assert_raises(SyntaxError) { Template.parse("{{test |a|b|}}") }
-    end
-  end
-
-  def test_meaningless_parens_error
-    with_error_mode(:strict) do
-      assert_raises(SyntaxError) do
-        markup = "a == 'foo' or (b == 'bar' and c == 'baz') or false"
-        Template.parse("{% if #{markup} %} YES {% endif %}")
-      end
-    end
-  end
-
-  def test_unexpected_characters_syntax_error
-    with_error_mode(:strict) do
-      assert_raises(SyntaxError) do
-        markup = "true && false"
-        Template.parse("{% if #{markup} %} YES {% endif %}")
-      end
-      assert_raises(SyntaxError) do
-        markup = "false || true"
-        Template.parse("{% if #{markup} %} YES {% endif %}")
-      end
-    end
-  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)
-  end
-
-  def test_meaningless_parens_lax
-    with_error_mode(:lax) do
-      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)
-    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 %}")
-      markup = "false || true"
-      assert_template_result('', "{% if #{markup} %} YES {% endif %}")
-    end
-  end
-
-  def test_raise_on_invalid_tag_delimiter
-    assert_raises(Liquid::SyntaxError) do
-      Template.new.parse('{% end %}')
-    end
-  end
-
-  def test_unanchored_filter_arguments
-    with_error_mode(:lax) do
-      assert_template_result('hi', "{{ 'hi there' | split$$$:' ' | first }}")
-
-      assert_template_result('x', "{{ 'X' | downcase) }}")
-
-      # After the messed up quotes a filter without parameters (reverse) should work
-      # but one with parameters (remove) shouldn't be detected.
-      assert_template_result('here',  "{{ 'hi there' | split:\"t\"\" | reverse | first}}")
-      assert_template_result('hi ',  "{{ 'hi there' | split:\"t\"\" | remove:\"i\" | first}}")
-    end
-  end
-
-  def test_invalid_variables_work
-    with_error_mode(:lax) do
-      assert_template_result('bar', "{% assign 123foo = 'bar' %}{{ 123foo }}")
-      assert_template_result('123', "{% assign 123 = 'bar' %}{{ 123 }}")
-    end
-  end
-
-  def test_extra_dots_in_ranges
-    with_error_mode(:lax) do
-      assert_template_result('12345', "{% for i in (1...5) %}{{ i }}{% endfor %}")
-    end
-  end
-
-end # ParsingQuirksTest

test/integration/render_profiling_test.rb

@@ -1,154 +0,0 @@
-require 'test_helper'
-
-class RenderProfilingTest < Minitest::Test
-  include Liquid
-
-  class ProfilingFileSystem
-    def read_template_file(template_path)
-      "Rendering template {% assign template_name = '#{template_path}'%}\n{{ template_name }}"
-    end
-  end
-
-  def setup
-    Liquid::Template.file_system = ProfilingFileSystem.new
-  end
-
-  def test_template_allows_flagging_profiling
-    t = Template.parse("{{ 'a string' | upcase }}")
-    t.render!
-
-    assert_nil t.profiler
-  end
-
-  def test_parse_makes_available_simple_profiling
-    t = Template.parse("{{ 'a string' | upcase }}", :profile => true)
-    t.render!
-
-    assert_equal 1, t.profiler.length
-
-    node = t.profiler[0]
-    assert_equal " 'a string' | upcase ", node.code
-  end
-
-  def test_render_ignores_raw_strings_when_profiling
-    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.render!
-    assert_equal 2, t.profiler.length
-
-    # {{ 'a string' | upcase }}
-    assert_equal 1, t.profiler[0].line_number
-    # {{ increment test }}
-    assert_equal 2, t.profiler[1].line_number
-  end
-
-  def test_profiling_includes_line_numbers_of_included_partials
-    t = Template.parse("{% include 'a_template' %}", :profile => true)
-    t.render!
-
-    included_children = t.profiler[0].children
-
-    # {% assign template_name = 'a_template' %}
-    assert_equal 1, included_children[0].line_number
-    # {{ template_name }}
-    assert_equal 2, included_children[1].line_number
-  end
-
-  def test_profiling_times_the_rendering_of_tokens
-    t = Template.parse("{% include 'a_template' %}", :profile => true)
-    t.render!
-
-    node = t.profiler[0]
-    refute_nil node.render_time
-  end
-
-  def test_profiling_times_the_entire_render
-    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.render!
-
-    include_node = t.profiler[1]
-    assert_equal 2, include_node.children.length
-  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.render!
-
-    include_node = t.profiler[1]
-    include_node.children.each do |child|
-      assert_equal "a_template", child.partial
-    end
-  end
-
-  def test_profiling_supports_multiple_templates
-    t = Template.parse("{{ 'a string' | upcase }}\n{% include 'a_template' %}\n{% include 'b_template' %}", :profile => true)
-    t.render!
-
-    a_template = t.profiler[1]
-    a_template.children.each do |child|
-      assert_equal "a_template", child.partial
-    end
-
-    b_template = t.profiler[2]
-    b_template.children.each do |child|
-      assert_equal "b_template", child.partial
-    end
-  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.render!
-
-    a_template1 = t.profiler[1]
-    a_template1.children.each do |child|
-      assert_equal "a_template", child.partial
-    end
-
-    a_template2 = t.profiler[2]
-    a_template2.children.each do |child|
-      assert_equal "a_template", child.partial
-    end
-  end
-
-  def test_can_iterate_over_each_profiling_entry
-    t = Template.parse("{{ 'a string' | upcase }}\n{% increment test %}", :profile => true)
-    t.render!
-
-    timing_count = 0
-    t.profiler.each do |timing|
-      timing_count += 1
-    end
-
-    assert_equal 2, timing_count
-  end
-
-  def test_profiling_marks_children_of_if_blocks
-    t = Template.parse("{% if true %} {% increment test %} {{ test }} {% endif %}", :profile => true)
-    t.render!
-
-    assert_equal 1, t.profiler.length
-    assert_equal 2, t.profiler[0].children.length
-  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"] })
-
-    assert_equal 1, t.profiler.length
-    # Will profile each invocation of the for block
-    assert_equal 2, t.profiler[0].children.length
-  end
-end

test/integration/tags/if_else_tag_test.rb

@@ -1,167 +0,0 @@
-require 'test_helper'
-
-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('  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 %}?')
-  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 %}')
-  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 %}')
-  end
-
-  def test_if_boolean
-    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 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)
-  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)
-  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)
-  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 %}')
-  end
-
-  def test_hash_miss_generates_false
-    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(' 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 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
-    assert_template_result('', '{% if false %}{% if false %} NO {% endif %}{% endif %}')
-    assert_template_result('', '{% if false %}{% if true %} NO {% endif %}{% endif %}')
-    assert_template_result('', '{% if true %}{% if false %} NO {% endif %}{% endif %}')
-    assert_template_result(' YES ', '{% if true %}{% if true %} YES {% endif %}{% endif %}')
-
-    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 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('elsif', '{% if false %}if{% elsif true %}elsif{% endif %}')
-  end
-
-  def test_syntax_error_no_variable
-    assert_raises(SyntaxError){ assert_template_result('', '{% if jerry == 1 %}') }
-  end
-
-  def test_syntax_error_no_expression
-    assert_raises(SyntaxError) { assert_template_result('', '{% if %}') }
-  end
-
-  def test_if_with_custom_condition
-    original_op = Condition.operators['contains']
-    Condition.operators['contains'] = :[]
-
-    assert_template_result('yes', %({% if 'bob' contains 'o' %}yes{% endif %}))
-    assert_template_result('no', %({% if 'bob' contains 'f' %}yes{% else %}no{% endif %}))
-  ensure
-    Condition.operators['contains'] = original_op
-  end
-
-  def test_operators_are_ignored_unless_isolated
-    original_op = Condition.operators['contains']
-    Condition.operators['contains'] = :[]
-
-    assert_template_result('yes',
-      %({% if 'gnomeslab-and-or-liquid' contains 'gnomeslab-and-or-liquid' %}yes{% endif %}))
-  ensure
-    Condition.operators['contains'] = original_op
-  end
-
-  def test_operators_are_whitelisted
-    assert_raises(SyntaxError) do
-      assert_template_result('', %({% if 1 or throw or or 1 %}yes{% endif %}))
-    end
-  end
-end

test/integration/tags/increment_tag_test.rb

@@ -1,24 +0,0 @@
-require 'test_helper'
-
-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 0 1 2 1',
-      '{%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('1 5 2 2 5',
-      '{%increment port %} {%increment starboard%} ' \
-      '{%increment port %} {%decrement port%} ' \
-      '{%decrement starboard %}', { 'port' => 1, 'starboard' => 5 })
-  end
-
-end

test/integration/tags/standard_tag_test.rb

@@ -1,296 +0,0 @@
-require 'test_helper'
-
-class StandardTagTest < Minitest::Test
-  include Liquid
-
-  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...')
-
-    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)
-  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('', '{%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('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('foobar', 'foo{%comment%}
-                                     {%endcomment%}bar')
-  end
-
-  def test_hyphenated_assign
-    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' } } }
-    assert_template_result('var2: 1', '{%assign var2 = var["a:b c"].paged %}var2: {{var2}}', assigns)
-  end
-
-  def test_capture
-    assigns = { 'var' => 'content' }
-    assert_template_result('content foo content foo ',
-      '{{ 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' })
-    end
-  end
-
-  def test_case
-    assigns = { 'condition' => 2 }
-    assert_template_result(' its 2 ',
-      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns)
-
-    assigns = { 'condition' => 1 }
-    assert_template_result(' its 1 ',
-      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns)
-
-    assigns = { 'condition' => 3 }
-    assert_template_result('',
-      '{% case condition %}{% when 1 %} its 1 {% when 2 %} its 2 {% endcase %}',
-      assigns)
-
-    assigns = { 'condition' => "string here" }
-    assert_template_result(' hit ',
-      '{% case condition %}{% when "string here" %} hit {% endcase %}',
-      assigns)
-
-    assigns = { 'condition' => "bad string here" }
-    assert_template_result('',
-      '{% case condition %}{% when "string here" %} hit {% endcase %}',\
-      assigns)
-  end
-
-  def test_case_with_else
-    assigns = { 'condition' => 5 }
-    assert_template_result(' hit ',
-      '{% case condition %}{% when 5 %} hit {% else %} else {% endcase %}',
-      assigns)
-
-    assigns = { 'condition' => 6 }
-    assert_template_result(' else ',
-      '{% case condition %}{% when 5 %} hit {% else %} else {% endcase %}',
-      assigns)
-
-    assigns = { 'condition' => 6 }
-    assert_template_result(' else ',
-      '{% case condition %} {% when 5 %} hit {% else %} else {% endcase %}',
-      assigns)
-  end
-
-  def test_case_on_size
-    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [])
-    assert_template_result('1', '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1])
-    assert_template_result('2', '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1, 1])
-    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1, 1, 1])
-    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1, 1, 1, 1])
-    assert_template_result('',  '{% case a.size %}{% when 1 %}1{% when 2 %}2{% endcase %}', 'a' => [1, 1, 1, 1, 1])
-  end
-
-  def test_case_on_size_with_else
-    assert_template_result('else',
-      '{% 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])
-
-    assert_template_result('2',
-      '{% 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])
-
-    assert_template_result('else',
-      '{% 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])
-  end
-
-  def test_case_on_length_with_else
-    assert_template_result('else',
-      '{% 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 %}',
-      {})
-
-    assert_template_result('true',
-      '{% 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 %}',
-      {})
-  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 }}"
-    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' })
-  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 })
-
-    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' })
-  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 })
-
-    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' })
-  end
-
-  def test_assign
-    assert_template_result 'variable', '{% assign a = "variable"%}{{a}}'
-  end
-
-  def test_assign_unassigned
-    assigns = { 'var' => 'content' }
-    assert_template_result('var2:  var2:content', 'var2:{{var2}} {%assign var2 = var%} var2:{{var2}}', assigns)
-  end
-
-  def test_assign_an_empty_string
-    assert_template_result '', '{% assign a = ""%}{{a}}'
-  end
-
-  def test_assign_is_global
-    assert_template_result 'variable', '{%for i in (1..2) %}{% assign a = "variable"%}{% endfor %}{{a}}'
-  end
-
-  def test_case_detects_bad_syntax
-    assert_raises(SyntaxError) do
-      assert_template_result('',  '{% case false %}{% when %}true{% endcase %}', {})
-    end
-
-    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 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"%}')
-  end
-
-  def test_multiple_cycles
-    assert_template_result('1 2 1 1 2 3 1',
-      '{%cycle 1,2%} {%cycle 1,2%} {%cycle 1,2%} {%cycle 1,2,3%} {%cycle 1,2,3%} {%cycle 1,2,3%} {%cycle 1,2,3%}')
-  end
-
-  def test_multiple_named_cycles
-    assert_template_result('one one two two one one',
-      '{%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %} {%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %} {%cycle 1: "one", "two" %} {%cycle 2: "one", "two" %}')
-  end
-
-  def test_multiple_named_cycles_with_names_from_context
-    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] }
-    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 } }
-    assert_template_result('hash has 4 elements', "hash has {{ hash.size }} elements", assigns)
-  end
-
-  def test_illegal_symbols
-    assert_template_result('', '{% if true == empty %}?{% endif %}', {})
-    assert_template_result('', '{% if true == null %}?{% endif %}', {})
-    assert_template_result('', '{% if empty == true %}?{% endif %}', {})
-    assert_template_result('', '{% if null == true %}?{% endif %}', {})
-  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, 1, 1] }
-    assert_template_result('1', '{%for item in array%}{%ifchanged%}{{item}}{% endifchanged %}{%endfor%}', assigns)
-  end
-
-  def test_multiline_tag
-    assert_template_result '0 1 2 3', "0{%\nfor i in (1..3)\n%} {{\ni\n}}{%\nendfor\n%}"
-  end
-end # StandardTagTest

test/integration/tags/unless_else_tag_test.rb

@@ -1,26 +0,0 @@
-require 'test_helper'
-
-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('  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 %}?')
-  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 %}')
-  end
-
-  def test_unless_in_loop
-    assert_template_result '23', '{% for i in choices %}{% unless i %}{{ forloop.index }}{% endunless %}{% endfor %}', 'choices' => [1, nil, false]
-  end
-
-  def test_unless_else_in_loop
-    assert_template_result ' TRUE  2  3 ', '{% for i in choices %}{% unless i %} {{ forloop.index }} {% else %} TRUE {% endunless %}{% endfor %}', 'choices' => [1, nil, false]
-  end
-end # UnlessElseTest

test/integration/template_test.rb

@@ -1,214 +0,0 @@
-require 'test_helper'
-require 'timeout'
-
-class TemplateContextDrop < Liquid::Drop
-  def before_method(method)
-    method
-  end
-
-  def foo
-    'fizzbuzz'
-  end
-
-  def baz
-    @context.registers['lulz']
-  end
-end
-
-class SomethingWithLength < Liquid::Drop
-  def length
-    nil
-  end
-end
-
-class ErroneousDrop < Liquid::Drop
-  def bad_method
-    raise 'ruby error in drop'
-  end
-end
-
-class TemplateTest < Minitest::Test
-  include Liquid
-
-  def test_instance_assigns_persist_on_same_template_object_between_parses
-    t = Template.new
-    assert_equal 'from instance assigns', t.parse("{% assign foo = 'from instance assigns' %}{{ foo }}").render!
-    assert_equal 'from instance assigns', t.parse("{{ foo }}").render!
-  end
-
-  def test_warnings_is_not_exponential_time
-    str = "false"
-    100.times do
-      str = "{% if true %}true{% else %}#{str}{% endif %}"
-    end
-
-    t = Template.parse(str)
-    assert_equal [], Timeout.timeout(1) { t.warnings }
-  end
-
-  def test_instance_assigns_persist_on_same_template_parsing_between_renders
-    t = Template.new.parse("{{ foo }}{% assign foo = 'foo' %}{{ foo }}")
-    assert_equal 'foo', t.render!
-    assert_equal 'foofoo', t.render!
-  end
-
-  def test_custom_assigns_do_not_persist_on_same_template
-    t = Template.new
-    assert_equal 'from custom assigns', t.parse("{{ foo }}").render!('foo' => 'from custom assigns')
-    assert_equal '', t.parse("{{ foo }}").render!
-  end
-
-  def test_custom_assigns_squash_instance_assigns
-    t = Template.new
-    assert_equal 'from instance assigns', t.parse("{% assign foo = 'from instance assigns' %}{{ foo }}").render!
-    assert_equal 'from custom assigns', t.parse("{{ foo }}").render!('foo' => 'from custom assigns')
-  end
-
-  def test_persistent_assigns_squash_instance_assigns
-    t = Template.new
-    assert_equal 'from instance assigns', t.parse("{% assign foo = 'from instance assigns' %}{{ foo }}").render!
-    t.assigns['foo'] = 'from persistent assigns'
-    assert_equal 'from persistent assigns', t.parse("{{ foo }}").render!
-  end
-
-  def test_lambda_is_called_once_from_persistent_assigns_over_multiple_parses_and_renders
-    t = Template.new
-    t.assigns['number'] = -> { @global ||= 0; @global += 1 }
-    assert_equal '1', t.parse("{{number}}").render!
-    assert_equal '1', t.parse("{{number}}").render!
-    assert_equal '1', t.render!
-    @global = nil
-  end
-
-  def test_lambda_is_called_once_from_custom_assigns_over_multiple_parses_and_renders
-    t = Template.new
-    assigns = { 'number' => -> { @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)
-    @global = nil
-  end
-
-  def test_resource_limits_works_with_custom_length_method
-    t = Template.parse("{% assign foo = bar %}")
-    t.resource_limits.render_length_limit = 42
-    assert_equal "", t.render!("bar" => SomethingWithLength.new)
-  end
-
-  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 t.resource_limits.reached?
-
-    t.resource_limits.render_length_limit = 10
-    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 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 t.resource_limits.reached?
-
-    t.resource_limits.render_score_limit = 200
-    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 t.resource_limits.reached?
-
-    t.resource_limits.assign_score_limit = 2
-    assert_equal "", t.render!
-    refute_nil t.resource_limits.assign_score
-  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 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!
-    assert t.resource_limits.assign_score > 0
-    assert t.resource_limits.render_score > 0
-    assert t.resource_limits.render_length > 0
-  end
-
-  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
-    t.resource_limits.render_length_limit = 8
-    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
-    t.resource_limits.render_length_limit = 14
-    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
-    t.resource_limits.render_length_limit = 11
-    assert_equal "Liquid error: Memory limits exceeded", t.render
-    t.resource_limits.render_length_limit = 12
-    assert_equal "ababab", t.render
-  end
-
-  def test_default_resource_limits_unaffected_by_render_with_context
-    context = Context.new
-    t = Template.parse("{% for a in (1..100) %} {% assign foo = 1 %} {% endfor %}")
-    t.render!(context)
-    assert context.resource_limits.assign_score > 0
-    assert context.resource_limits.render_score > 0
-    assert context.resource_limits.render_length > 0
-  end
-
-  def test_can_use_drop_as_context
-    t = Template.new
-    t.registers['lulz'] = 'haha'
-    drop = TemplateContextDrop.new
-    assert_equal 'fizzbuzz', t.parse('{{foo}}').render!(drop)
-    assert_equal 'bar', t.parse('{{bar}}').render!(drop)
-    assert_equal 'haha', t.parse("{{baz}}").render!(drop)
-  end
-
-  def test_render_bang_force_rethrow_errors_on_passed_context
-    context = Context.new({ 'drop' => ErroneousDrop.new })
-    t = Template.new.parse('{{ drop.bad_method }}')
-
-    e = assert_raises RuntimeError do
-      t.render!(context)
-    end
-    assert_equal 'ruby error in drop', e.message
-  end
-
-  def test_exception_handler_doesnt_reraise_if_it_returns_false
-    exception = nil
-    Template.parse("{{ 1 | divided_by: 0 }}").render({}, exception_handler: ->(e) { exception = e; false })
-    assert exception.is_a?(ZeroDivisionError)
-  end
-
-  def test_exception_handler_does_reraise_if_it_returns_true
-    exception = nil
-    assert_raises(ZeroDivisionError) do
-      Template.parse("{{ 1 | divided_by: 0 }}").render({}, exception_handler: ->(e) { exception = e; true })
-    end
-    assert exception.is_a?(ZeroDivisionError)
-  end
-end

test/integration/variable_test.rb

@@ -1,82 +0,0 @@
-require 'test_helper'
-
-class VariableTest < Minitest::Test
-  include Liquid
-
-  def test_simple_variable
-    template = Template.parse(%({{test}}))
-    assert_equal 'worked', template.render!('test' => 'worked')
-    assert_equal 'worked wonderfully', template.render!('test' => 'worked wonderfully')
-  end
-
-  def test_variable_render_calls_to_liquid
-    assert_template_result 'foobar', '{{ foo }}', 'foo' => ThingWithToLiquid.new
-  end
-
-  def test_simple_with_whitespaces
-    template = Template.parse(%(  {{ test }}  ))
-    assert_equal '  worked  ', template.render!('test' => 'worked')
-    assert_equal '  worked wonderfully  ', template.render!('test' => 'worked wonderfully')
-  end
-
-  def test_ignore_unknown
-    template = Template.parse(%({{ test }}))
-    assert_equal '', template.render!
-  end
-
-  def test_hash_scoping
-    template = Template.parse(%({{ test.test }}))
-    assert_equal 'worked', template.render!('test' => { 'test' => 'worked' })
-  end
-
-  def test_false_renders_as_false
-    assert_equal 'false', Template.parse("{{ foo }}").render!('foo' => false)
-    assert_equal 'false', Template.parse("{{ false }}").render!
-  end
-
-  def test_nil_renders_as_empty_string
-    assert_equal '', Template.parse("{{ nil }}").render!
-    assert_equal 'cat', Template.parse("{{ nil | append: 'cat' }}").render!
-  end
-
-  def test_preset_assigns
-    template = Template.parse(%({{ test }}))
-    template.assigns['test'] = 'worked'
-    assert_equal 'worked', template.render!
-  end
-
-  def test_reuse_parsed_template
-    template = Template.parse(%({{ greeting }} {{ name }}))
-    template.assigns['greeting'] = 'Goodbye'
-    assert_equal 'Hello Tobi', template.render!('greeting' => 'Hello', 'name' => 'Tobi')
-    assert_equal 'Hello ', template.render!('greeting' => 'Hello', 'unknown' => 'Tobi')
-    assert_equal 'Hello Brian', template.render!('greeting' => 'Hello', 'name' => 'Brian')
-    assert_equal 'Goodbye Brian', template.render!('name' => 'Brian')
-    assert_equal({ 'greeting' => 'Goodbye' }, template.assigns)
-  end
-
-  def test_assigns_not_polluted_from_template
-    template = Template.parse(%({{ test }}{% assign test = 'bar' %}{{ test }}))
-    template.assigns['test'] = 'baz'
-    assert_equal 'bazbar', template.render!
-    assert_equal 'bazbar', template.render!
-    assert_equal 'foobar', template.render!('test' => 'foo')
-    assert_equal 'bazbar', template.render!
-  end
-
-  def test_hash_with_default_proc
-    template = Template.parse(%(Hello {{ test }}))
-    assigns = Hash.new { |h, k| raise "Unknown variable '#{k}'" }
-    assigns['test'] = 'Tobi'
-    assert_equal 'Hello Tobi', template.render!(assigns)
-    assigns.delete('test')
-    e = assert_raises(RuntimeError) {
-      template.render!(assigns)
-    }
-    assert_equal "Unknown variable 'test'", e.message
-  end
-
-  def test_multiline_variable
-    assert_equal 'worked', Template.parse("{{\ntest\n}}").render!('test' => 'worked')
-  end
-end

test/liquid/assign_test.rb

@@ -0,0 +1,27 @@
+require 'test_helper'
+
+class AssignTest < Test::Unit::TestCase
+  include Liquid
+
+  def test_assigned_variable
+    assert_template_result('.foo.',
+                           '{% assign foo = values %}.{{ foo[0] }}.',
+                           'values' => %w{foo bar baz})
+
+    assert_template_result('.bar.',
+                           '{% 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")
+  end
+
+  def test_assign_syntax_error
+    assert_match_syntax_error(/assign/,
+                       '{% assign foo not values %}.',
+                       'values' => "foo,bar,baz")
+  end
+end # AssignTest

test/liquid/blank_test.rb

@@ -9,12 +9,12 @@ class FoobarTag < Liquid::Tag
 end
 
 class BlankTestFileSystem
-  def read_template_file(template_path)
+  def read_template_file(template_path, context)
     template_path
   end
 end
 
-class BlankTest < Minitest::Test
+class BlankTest < Test::Unit::TestCase
   include Liquid
   N = 10
 
@@ -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

test/liquid/block_test.rb

@@ -1,6 +1,6 @@
 require 'test_helper'
 
-class BlockUnitTest < Minitest::Test
+class BlockTest < Test::Unit::TestCase
   include Liquid
 
   def test_blankspace
@@ -34,7 +34,7 @@ class BlockUnitTest < Minitest::Test
     template = Liquid::Template.parse("  {{funk}} {{so}} {{brother}} ")
     assert_equal 7, template.root.nodelist.size
     assert_equal [String, Variable, String, Variable, String, Variable, String],
-      block_types(template.root.nodelist)
+                 block_types(template.root.nodelist)
   end
 
   def test_with_block
@@ -45,12 +45,14 @@ class BlockUnitTest < Minitest::Test
 
   def test_with_custom_tag
     Liquid::Template.register_tag("testtag", Block)
-    assert Liquid::Template.parse("{% testtag %} {% endtesttag %}")
+
+    assert_nothing_thrown do
+      template = Liquid::Template.parse( "{% testtag %} {% endtesttag %}")
+    end
   end
 
   private
-
-  def block_types(nodelist)
-    nodelist.collect(&:class)
-  end
+    def block_types(nodelist)
+      nodelist.collect { |node| node.class }
+    end
 end # VariableTest

test/liquid/capture_test.rb

@@ -1,22 +1,12 @@
 require 'test_helper'
 
-class CaptureTest < Minitest::Test
+class CaptureTest < Test::Unit::TestCase
   include Liquid
 
   def test_captures_block_content_in_variable
     assert_template_result("test string", "{% capture 'var' %}test string{% endcapture %}{{var}}", {})
   end
 
-  def test_capture_with_hyphen_in_variable_name
-    template_source = <<-END_TEMPLATE
-    {% capture this-thing %}Print this-thing{% endcapture %}
-    {{ this-thing }}
-    END_TEMPLATE
-    template = Template.parse(template_source)
-    rendered = template.render!
-    assert_equal "Print this-thing", rendered.strip
-  end
-
   def test_capture_to_variable_from_outer_scope_if_existing
     template_source = <<-END_TEMPLATE
     {% assign var = '' %}

test/liquid/condition_test.rb

@@ -0,0 +1,127 @@
+require 'test_helper'
+
+class ConditionTest < Test::Unit::TestCase
+  include Liquid
+
+  def test_basic_condition
+    assert_equal false, Condition.new('1', '==', '2').evaluate
+    assert_equal true,  Condition.new('1', '==', '1').evaluate
+  end
+
+  def test_default_operators_evalute_true
+    assert_evalutes_true '1', '==', '1'
+    assert_evalutes_true '1', '!=', '2'
+    assert_evalutes_true '1', '<>', '2'
+    assert_evalutes_true '1', '<', '2'
+    assert_evalutes_true '2', '>', '1'
+    assert_evalutes_true '1', '>=', '1'
+    assert_evalutes_true '2', '>=', '1'
+    assert_evalutes_true '1', '<=', '2'
+    assert_evalutes_true '1', '<=', '1'
+    # negative numbers
+    assert_evalutes_true '1', '>', '-1'
+    assert_evalutes_true '-1', '<', '1'
+    assert_evalutes_true '1.0', '>', '-1.0'
+    assert_evalutes_true '-1.0', '<', '1.0'
+  end
+
+  def test_default_operators_evalute_false
+    assert_evalutes_false '1', '==', '2'
+    assert_evalutes_false '1', '!=', '1'
+    assert_evalutes_false '1', '<>', '1'
+    assert_evalutes_false '1', '<', '0'
+    assert_evalutes_false '2', '>', '4'
+    assert_evalutes_false '1', '>=', '3'
+    assert_evalutes_false '2', '>=', '4'
+    assert_evalutes_false '1', '<=', '0'
+    assert_evalutes_false '1', '<=', '0'
+  end
+
+  def test_contains_works_on_strings
+    assert_evalutes_true "'bob'", 'contains', "'o'"
+    assert_evalutes_true "'bob'", 'contains', "'b'"
+    assert_evalutes_true "'bob'", 'contains', "'bo'"
+    assert_evalutes_true "'bob'", 'contains', "'ob'"
+    assert_evalutes_true "'bob'", 'contains', "'bob'"
+
+    assert_evalutes_false "'bob'", 'contains', "'bob2'"
+    assert_evalutes_false "'bob'", 'contains', "'a'"
+    assert_evalutes_false "'bob'", 'contains', "'---'"
+  end
+
+  def test_contains_works_on_arrays
+    @context = Liquid::Context.new
+    @context['array'] = [1,2,3,4,5]
+
+    assert_evalutes_false "array",  'contains', '0'
+    assert_evalutes_true "array",   'contains', '1'
+    assert_evalutes_true "array",   'contains', '2'
+    assert_evalutes_true "array",   'contains', '3'
+    assert_evalutes_true "array",   'contains', '4'
+    assert_evalutes_true "array",   'contains', '5'
+    assert_evalutes_false "array",  'contains', '6'
+    assert_evalutes_false "array",  'contains', '"1"'
+  end
+
+  def test_contains_returns_false_for_nil_operands
+    @context = Liquid::Context.new
+    assert_evalutes_false "not_assigned", 'contains', '0'
+    assert_evalutes_false "0", 'contains', 'not_assigned'
+  end
+
+  def test_or_condition
+    condition = Condition.new('1', '==', '2')
+
+    assert_equal false, condition.evaluate
+
+    condition.or Condition.new('2', '==', '1')
+
+    assert_equal false, condition.evaluate
+
+    condition.or Condition.new('1', '==', '1')
+
+    assert_equal true, condition.evaluate
+  end
+
+  def test_and_condition
+    condition = Condition.new('1', '==', '1')
+
+    assert_equal true, condition.evaluate
+
+    condition.and Condition.new('2', '==', '2')
+
+    assert_equal true, condition.evaluate
+
+    condition.and Condition.new('2', '==', '1')
+
+    assert_equal false, condition.evaluate
+  end
+
+  def test_should_allow_custom_proc_operator
+    Condition.operators['starts_with'] = Proc.new { |cond, left, right| left =~ %r{^#{right}} }
+
+    assert_evalutes_true "'bob'",   'starts_with', "'b'"
+    assert_evalutes_false "'bob'",  'starts_with', "'o'"
+
+    ensure
+      Condition.operators.delete 'starts_with'
+  end
+
+  def test_left_or_right_may_contain_operators
+    @context = Liquid::Context.new
+    @context['one'] = @context['another'] = "gnomeslab-and-or-liquid"
+
+    assert_evalutes_true "one", '==', "another"
+  end
+
+  private
+    def assert_evalutes_true(left, op, right)
+      assert Condition.new(left, op, right).evaluate(@context || Liquid::Context.new),
+             "Evaluated false: #{left} #{op} #{right}"
+    end
+
+    def assert_evalutes_false(left, op, right)
+      assert !Condition.new(left, op, right).evaluate(@context || Liquid::Context.new),
+             "Evaluated true: #{left} #{op} #{right}"
+    end
+end # ConditionTest

test/liquid/context_test.rb

@@ -63,17 +63,13 @@ class ArrayLike
   end
 end
 
-class ContextUnitTest < Minitest::Test
+class ContextTest < Test::Unit::TestCase
   include Liquid
 
   def setup
     @context = Liquid::Context.new
   end
 
-  def teardown
-    Spy.teardown
-  end
-
   def test_variables
     @context['string'] = 'string'
     assert_equal 'string', @context['string']
@@ -107,14 +103,16 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_scoping
-    @context.push
-    @context.pop
-
-    assert_raises(Liquid::ContextError) do
+    assert_nothing_raised do
+      @context.push
       @context.pop
     end
 
-    assert_raises(Liquid::ContextError) do
+    assert_raise(Liquid::ContextError) do
+      @context.pop
+    end
+
+    assert_raise(Liquid::ContextError) do
       @context.push
       @context.pop
       @context.pop
@@ -122,25 +120,30 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_length_query
-    @context['numbers'] = [1, 2, 3, 4]
+
+    @context['numbers'] = [1,2,3,4]
 
     assert_equal 4, @context['numbers.size']
 
-    @context['numbers'] = { 1 => 1, 2 => 2, 3 => 3, 4 => 4 }
+    @context['numbers'] = {1 => 1,2 => 2,3 => 3,4 => 4}
 
     assert_equal 4, @context['numbers.size']
 
-    @context['numbers'] = { 1 => 1, 2 => 2, 3 => 3, 4 => 4, 'size' => 1000 }
+    @context['numbers'] = {1 => 1,2 => 2,3 => 3,4 => 4, 'size' => 1000}
 
     assert_equal 1000, @context['numbers.size']
+
   end
 
   def test_hyphenated_variable
+
     @context['oh-my'] = 'godz'
     assert_equal 'godz', @context['oh-my']
+
   end
 
   def test_add_filter
+
     filter = Module.new do
       def hi(output)
         output + ' hi!'
@@ -156,9 +159,29 @@ class ContextUnitTest < Minitest::Test
 
     context.add_filters(filter)
     assert_equal 'hi? hi!', context.invoke(:hi, 'hi?')
+
+  end
+
+  def test_override_global_filter
+    global = Module.new do
+      def notice(output)
+        "Global #{output}"
+      end
+    end
+
+    local = Module.new do
+      def notice(output)
+        "Local #{output}"
+      end
+    end
+
+    Template.register_filter(global)
+    assert_equal 'Global test', Template.parse("{{'test' | notice }}").render!
+    assert_equal 'Local test', Template.parse("{{'test' | notice }}").render!({}, :filters => [local])
   end
 
   def test_only_intended_filters_make_it_there
+
     filter = Module.new do
       def hi(output)
         output + ' hi!'
@@ -189,7 +212,7 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_hierachical_data
-    @context['hash'] = { "name" => 'tobi' }
+    @context['hash'] = {"name" => 'tobi'}
     assert_equal 'tobi', @context['hash.name']
     assert_equal 'tobi', @context['hash["name"]']
   end
@@ -218,7 +241,7 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_array_notation
-    @context['test'] = [1, 2, 3, 4, 5]
+    @context['test'] = [1,2,3,4,5]
 
     assert_equal 1, @context['test[0]']
     assert_equal 2, @context['test[1]']
@@ -228,21 +251,21 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_recoursive_array_notation
-    @context['test'] = { 'test' => [1, 2, 3, 4, 5] }
+    @context['test'] = {'test' => [1,2,3,4,5]}
 
     assert_equal 1, @context['test.test[0]']
 
-    @context['test'] = [{ 'test' => 'worked' }]
+    @context['test'] = [{'test' => 'worked'}]
 
     assert_equal 'worked', @context['test[0].test']
   end
 
   def test_hash_to_array_transition
     @context['colors'] = {
-      'Blue'    => ['003366', '336699', '6699CC', '99CCFF'],
-      'Green'   => ['003300', '336633', '669966', '99CC99'],
-      'Yellow'  => ['CC9900', 'FFCC00', 'FFFF99', 'FFFFCC'],
-      'Red'     => ['660000', '993333', 'CC6666', 'FF9999']
+      'Blue'    => ['003366','336699', '6699CC', '99CCFF'],
+      'Green'   => ['003300','336633', '669966', '99CC99'],
+      'Yellow'  => ['CC9900','FFCC00', 'FFFF99', 'FFFFCC'],
+      'Red'     => ['660000','993333', 'CC6666', 'FF9999']
     }
 
     assert_equal '003366', @context['colors.Blue[0]']
@@ -250,12 +273,12 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_try_first
-    @context['test'] = [1, 2, 3, 4, 5]
+    @context['test'] = [1,2,3,4,5]
 
     assert_equal 1, @context['test.first']
     assert_equal 5, @context['test.last']
 
-    @context['test'] = { 'test' => [1, 2, 3, 4, 5] }
+    @context['test'] = {'test' => [1,2,3,4,5]}
 
     assert_equal 1, @context['test.test.first']
     assert_equal 5, @context['test.test.last']
@@ -266,8 +289,8 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_access_hashes_with_hash_notation
-    @context['products'] = { 'count' => 5, 'tags' => ['deepsnow', 'freestyle'] }
-    @context['product'] = { 'variants' => [ { 'title' => 'draft151cm' }, { 'title' => 'element151cm' }  ] }
+    @context['products'] = {'count' => 5, 'tags' => ['deepsnow', 'freestyle'] }
+    @context['product'] = {'variants' => [ {'title' => 'draft151cm'}, {'title' => 'element151cm'}  ]}
 
     assert_equal 5, @context['products["count"]']
     assert_equal 'deepsnow', @context['products["tags"][0]']
@@ -287,17 +310,18 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_access_hashes_with_hash_access_variables
+
     @context['var'] = 'tags'
-    @context['nested'] = { 'var' => 'tags' }
-    @context['products'] = { 'count' => 5, 'tags' => ['deepsnow', 'freestyle'] }
+    @context['nested'] = {'var' => 'tags'}
+    @context['products'] = {'count' => 5, 'tags' => ['deepsnow', 'freestyle'] }
 
     assert_equal 'deepsnow', @context['products[var].first']
     assert_equal 'freestyle', @context['products[nested.var].last']
   end
 
   def test_hash_notation_only_for_hash_access
-    @context['array'] = [1, 2, 3, 4, 5]
-    @context['hash'] = { 'first' => 'Hello' }
+    @context['array'] = [1,2,3,4,5]
+    @context['hash'] = {'first' => 'Hello'}
 
     assert_equal 1, @context['array.first']
     assert_equal nil, @context['array["first"]']
@@ -305,64 +329,66 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_first_can_appear_in_middle_of_callchain
-    @context['product'] = { 'variants' => [ { 'title' => 'draft151cm' }, { 'title' => 'element151cm' }  ] }
+
+    @context['product'] = {'variants' => [ {'title' => 'draft151cm'}, {'title' => 'element151cm'}  ]}
 
     assert_equal 'draft151cm', @context['product.variants[0].title']
     assert_equal 'element151cm', @context['product.variants[1].title']
     assert_equal 'draft151cm', @context['product.variants.first.title']
     assert_equal 'element151cm', @context['product.variants.last.title']
+
   end
 
   def test_cents
-    @context.merge("cents" => HundredCentes.new)
+    @context.merge( "cents" => HundredCentes.new )
     assert_equal 100, @context['cents']
   end
 
   def test_nested_cents
-    @context.merge("cents" => { 'amount' => HundredCentes.new })
+    @context.merge( "cents" => { 'amount' => HundredCentes.new} )
     assert_equal 100, @context['cents.amount']
 
-    @context.merge("cents" => { 'cents' => { 'amount' => HundredCentes.new } })
+    @context.merge( "cents" => { 'cents' => { 'amount' => HundredCentes.new} } )
     assert_equal 100, @context['cents.cents.amount']
   end
 
   def test_cents_through_drop
-    @context.merge("cents" => CentsDrop.new)
+    @context.merge( "cents" => CentsDrop.new )
     assert_equal 100, @context['cents.amount']
   end
 
   def test_nested_cents_through_drop
-    @context.merge("vars" => { "cents" => CentsDrop.new })
+    @context.merge( "vars" => {"cents" => CentsDrop.new} )
     assert_equal 100, @context['vars.cents.amount']
   end
 
   def test_drop_methods_with_question_marks
-    @context.merge("cents" => CentsDrop.new)
+    @context.merge( "cents" => CentsDrop.new )
     assert @context['cents.non_zero?']
   end
 
   def test_context_from_within_drop
-    @context.merge("test" => '123', "vars" => ContextSensitiveDrop.new)
+    @context.merge( "test" => '123', "vars" => ContextSensitiveDrop.new )
     assert_equal '123', @context['vars.test']
   end
 
   def test_nested_context_from_within_drop
-    @context.merge("test" => '123', "vars" => { "local" => ContextSensitiveDrop.new })
+    @context.merge( "test" => '123', "vars" => {"local" => ContextSensitiveDrop.new }  )
     assert_equal '123', @context['vars.local.test']
   end
 
   def test_ranges
-    @context.merge("test" => '5')
+    @context.merge( "test" => '5' )
     assert_equal (1..5), @context['(1..5)']
     assert_equal (1..5), @context['(1..test)']
     assert_equal (5..5), @context['(test..test)']
   end
 
   def test_cents_through_drop_nestedly
-    @context.merge("cents" => { "cents" => CentsDrop.new })
+    @context.merge( "cents" => {"cents" => CentsDrop.new} )
     assert_equal 100, @context['cents.cents.amount']
 
-    @context.merge("cents" => { "cents" => { "cents" => CentsDrop.new } })
+    @context.merge( "cents" => { "cents" => {"cents" => CentsDrop.new}} )
     assert_equal 100, @context['cents.cents.cents.amount']
   end
 
@@ -383,7 +409,7 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_proc_as_variable
-    @context['dynamic'] = proc { 'Hello' }
+    @context['dynamic'] = Proc.new { 'Hello' }
 
     assert_equal 'Hello', @context['dynamic']
   end
@@ -401,7 +427,7 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_array_containing_lambda_as_variable
-    @context['dynamic'] = [1, 2, proc { 'Hello' }, 4, 5]
+    @context['dynamic'] = [1,2, proc { 'Hello' } ,4,5]
 
     assert_equal 'Hello', @context['dynamic[2]']
   end
@@ -427,7 +453,7 @@ class ContextUnitTest < Minitest::Test
   end
 
   def test_lambda_in_array_is_called_once
-    @context['callcount'] = [1, 2, proc { @global ||= 0; @global += 1; @global.to_s }, 4, 5]
+    @context['callcount'] = [1,2, proc { @global ||= 0; @global += 1; @global.to_s } ,4,5]
 
     assert_equal '1', @context['callcount[2]']
     assert_equal '1', @context['callcount[2]']
@@ -449,23 +475,4 @@ class ContextUnitTest < Minitest::Test
     assert_kind_of CategoryDrop, @context['category']
     assert_equal @context, @context['category'].context
   end
-
-  def test_use_empty_instead_of_any_in_interrupt_handling_to_avoid_lots_of_unnecessary_object_allocations
-    mock_any = Spy.on_instance_method(Array, :any?)
-    mock_empty = Spy.on_instance_method(Array, :empty?)
-    mock_has_interrupt = Spy.on(@context, :has_interrupt?).and_call_through
-
-    @context.has_interrupt?
-
-    refute mock_any.has_been_called?
-    assert mock_empty.has_been_called?
-  end
-
-  def test_context_initialization_with_a_proc_in_environment
-    contx = Context.new([:test => ->(c) { c['poutine'] }], { :test => :foo })
-
-    assert contx
-    assert_nil contx['poutine']
-  end
-
 end # ContextTest

test/liquid/drop_test.rb

@@ -14,7 +14,7 @@ class ContextDrop < Liquid::Drop
   end
 
   def before_method(method)
-    @context[method]
+    return @context[method]
   end
 end
 
@@ -32,7 +32,7 @@ class ProductDrop < Liquid::Drop
 
   class CatchallDrop < Liquid::Drop
     def before_method(method)
-      'method: ' << method.to_s
+      return 'method: ' << method.to_s
     end
   end
 
@@ -48,15 +48,10 @@ class ProductDrop < Liquid::Drop
     ContextDrop.new
   end
 
-  def user_input
-    "foo".taint
-  end
-
   protected
-
-  def callmenot
-    "protected"
-  end
+    def callmenot
+      "protected"
+    end
 end
 
 class EnumerableDrop < Liquid::Drop
@@ -105,34 +100,12 @@ class RealEnumerableDrop < Liquid::Drop
   end
 end
 
-class DropsTest < Minitest::Test
+class DropsTest < Test::Unit::TestCase
   include Liquid
 
   def test_product_drop
-    tpl = Liquid::Template.parse('  ')
-    assert_equal '  ', tpl.render!('product' => ProductDrop.new)
-  end
-
-  def test_rendering_raises_on_tainted_attr
-    with_taint_mode(:error) do
-      tpl = Liquid::Template.parse('{{ product.user_input }}')
-      assert_raises TaintedError do
-        tpl.render!('product' => ProductDrop.new)
-      end
-    end
-  end
-
-  def test_rendering_warns_on_tainted_attr
-    with_taint_mode(:warn) do
-      tpl = Liquid::Template.parse('{{ product.user_input }}')
-      tpl.render!('product' => ProductDrop.new)
-      assert_match /tainted/, tpl.warnings.first
-    end
-  end
-
-  def test_rendering_doesnt_raise_on_escaped_tainted_attr
-    with_taint_mode(:error) do
-      tpl = Liquid::Template.parse('{{ product.user_input | escape }}')
+    assert_nothing_raised do
+      tpl = Liquid::Template.parse( '  '  )
       tpl.render!('product' => ProductDrop.new)
     end
   end
@@ -152,37 +125,37 @@ 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_unknown_method
-    output = Liquid::Template.parse(' {{ product.catchall.unknown }} ').render!('product' => ProductDrop.new)
+    output = Liquid::Template.parse( ' {{ product.catchall.unknown }} '  ).render!('product' => ProductDrop.new)
     assert_equal ' method: unknown ', output
   end
 
   def test_integer_argument_drop
-    output = Liquid::Template.parse(' {{ product.catchall[8] }} ').render!('product' => ProductDrop.new)
+    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
 
@@ -194,40 +167,40 @@ 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_before_method_for_clashing_method_names