Class: TRMNL::Liquid::TemplateTag

Inherits:
Liquid::Block
  • Object
show all
Defined in:
lib/trmnl/liquid/template_tag.rb

Overview

The template [name] % tag block is used in conjunction with InlineTemplatesFileSystem to allow users to define custom templates within the context of the current Liquid template. Generally speaking, they will define their own templates in the "shared" markup content, which is prepended to the individual screen templates before rendering.

Constant Summary collapse

NAME_PATTERN = 
%r(\A[a-zA-Z0-9_/]+\z)

Instance Method Summary collapse

Constructor Details

#initialize(tag_name, markup, options) ⇒ TemplateTag

Returns a new instance of TemplateTag.



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# File 'lib/trmnl/liquid/template_tag.rb', line 12

def initialize tag_name, markup, options
  super

  @name = markup.strip
  @body = +""
end

Instance Method Details

#parse(tokens) ⇒ Object 



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# File 'lib/trmnl/liquid/template_tag.rb', line 19

def parse tokens
  body.clear

  while (token = tokens.shift)
    break if token.strip == "{% endtemplate %}"

    body << token
  end
end

#render(context) ⇒ Object 



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# File 'lib/trmnl/liquid/template_tag.rb', line 29

def render context
  unless NAME_PATTERN.match? name
    return "Liquid error: invalid template name #{name.inspect} - template names " \
           "must contain only letters, numbers, underscores, and slashes"
  end

  context.registers[:file_system].register name, body.strip
  ""
end