Class: Liquid::Capture

Inherits:
Block show all
Defined in:
lib/liquid/tags/capture.rb

Overview

Capture stores the result of a block into a variable without rendering it inplace.

{% capture heading %}
  Monkeys!
{% endcapture %}
...
<h1>{{ heading }}</h1>

Capture is useful for saving content for use later in your template, such as in a sidebar or footer.

Constant Summary collapse

Syntax = 
/(#{VariableSignature}+)/o

Constants inherited from Block

Block::MAX_DEPTH

Instance Attribute Summary

Attributes inherited from Tag

#line_number, #nodelist, #parse_context, #tag_name

Instance Method Summary collapse

Methods inherited from Block

#block_delimiter, #block_name, #nodelist, #parse, #unknown_tag

Methods inherited from Tag

#name, #parse, parse, #raw

Methods included from ParserSwitching

#parse_with_selected_parser

Constructor Details

#initialize(tag_name, markup, options) ⇒ Capture

Returns a new instance of Capture.



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# File 'lib/liquid/tags/capture.rb', line 16

def initialize(tag_name, markup, options)
  super
  if markup =~ Syntax
    @to = $1
  else
    raise SyntaxError.new(options[:locale].t("errors.syntax.capture"))
  end
end

Instance Method Details

#blank? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/liquid/tags/capture.rb', line 32

def blank?
  true
end

#render(context) ⇒ Object 



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# File 'lib/liquid/tags/capture.rb', line 25

def render(context)
  output = super
  context.scopes.last[@to] = output
  context.resource_limits.assign_score += output.length
  ''.freeze
end