mirror of
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9672ed5285
Example:
```
// the_count.liquid
{{ number }}! Ah ah ah.
// my_template.liquid
{% for number in range (1..3) %}
{% render "the_count", number: number %}
{% endfor %}
Output:
1! Ah ah ah.
2! Ah ah ah.
3! Ah ah ah.
```
The `render` tag is a more strict version of the `include` tag. It is
designed to isolate itself from the parent rendering context both by
creating a new scope (which does not inherit the parent scope) and by
only inheriting "static" registers.
Static registers are those that do not hold mutable state which could
affect rendering. This again helps `render`ed templates remain entirely
separate from their calling context.
Unlike `include`, `render` does not permit specifying the target
template using a variable, only a string literal. For example, this
means that `{% render my_dynamic_template %}` is invalid syntax. This
will make it possible to statically analyze the dependencies between
templates without making Turing angry.
Note that the `static_environment` of a rendered template is inherited, unlike
the scope and regular environment. This environment is immutable from within the
template.
An alternate syntax, which mimics the `{% include ... for %}` tag is
currently in design discussion.
82 lines
3.1 KiB
Ruby
82 lines
3.1 KiB
Ruby
# Copyright (c) 2005 Tobias Luetke
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#
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# Permission is hereby granted, free of charge, to any person obtaining
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# a copy of this software and associated documentation files (the
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# "Software"), to deal in the Software without restriction, including
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# without limitation the rights to use, copy, modify, merge, publish,
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# distribute, sublicense, and/or sell copies of the Software, and to
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# permit persons to whom the Software is furnished to do so, subject to
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# the following conditions:
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#
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# The above copyright notice and this permission notice shall be
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# included in all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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# LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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# OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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module Liquid
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FilterSeparator = /\|/
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ArgumentSeparator = ','.freeze
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FilterArgumentSeparator = ':'.freeze
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VariableAttributeSeparator = '.'.freeze
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WhitespaceControl = '-'.freeze
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TagStart = /\{\%/
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TagEnd = /\%\}/
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VariableSignature = /\(?[\w\-\.\[\]]\)?/
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VariableSegment = /[\w\-]/
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VariableStart = /\{\{/
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VariableEnd = /\}\}/
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VariableIncompleteEnd = /\}\}?/
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QuotedString = /"[^"]*"|'[^']*'/
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QuotedFragment = /#{QuotedString}|(?:[^\s,\|'"]|#{QuotedString})+/o
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TagAttributes = /(\w+)\s*\:\s*(#{QuotedFragment})/o
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AnyStartingTag = /#{TagStart}|#{VariableStart}/o
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PartialTemplateParser = /#{TagStart}.*?#{TagEnd}|#{VariableStart}.*?#{VariableIncompleteEnd}/om
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TemplateParser = /(#{PartialTemplateParser}|#{AnyStartingTag})/om
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VariableParser = /\[[^\]]+\]|#{VariableSegment}+\??/o
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singleton_class.send(:attr_accessor, :cache_classes)
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self.cache_classes = true
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end
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require "liquid/version"
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require 'liquid/parse_tree_visitor'
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require 'liquid/lexer'
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require 'liquid/parser'
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require 'liquid/i18n'
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require 'liquid/drop'
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require 'liquid/tablerowloop_drop'
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require 'liquid/forloop_drop'
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require 'liquid/extensions'
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require 'liquid/errors'
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require 'liquid/interrupts'
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require 'liquid/strainer'
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require 'liquid/expression'
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require 'liquid/context'
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require 'liquid/parser_switching'
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require 'liquid/tag'
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require 'liquid/block'
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require 'liquid/block_body'
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require 'liquid/document'
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require 'liquid/variable'
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require 'liquid/variable_lookup'
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require 'liquid/range_lookup'
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require 'liquid/file_system'
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require 'liquid/resource_limits'
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require 'liquid/template'
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require 'liquid/standardfilters'
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require 'liquid/condition'
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require 'liquid/utils'
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require 'liquid/tokenizer'
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require 'liquid/parse_context'
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require 'liquid/partial_cache'
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# Load all the tags of the standard library
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#
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Dir["#{__dir__}/liquid/tags/*.rb"].each { |f| require f }
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