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Handlebars scanner #103

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104 changes: 53 additions & 51 deletions lib/coderay/helpers/file_type.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -77,57 +77,59 @@ def shebang filename
end

TypeFromExt = {
'c' => :c,
'cfc' => :xml,
'cfm' => :xml,
'clj' => :clojure,
'css' => :css,
'diff' => :diff,
'dpr' => :delphi,
'erb' => :erb,
'gemspec' => :ruby,
'groovy' => :groovy,
'gvy' => :groovy,
'h' => :c,
'haml' => :haml,
'htm' => :html,
'html' => :html,
'html.erb' => :erb,
'java' => :java,
'js' => :java_script,
'json' => :json,
'lua' => :lua,
'mab' => :ruby,
'pas' => :delphi,
'patch' => :diff,
'phtml' => :php,
'php' => :php,
'php3' => :php,
'php4' => :php,
'php5' => :php,
'prawn' => :ruby,
'py' => :python,
'py3' => :python,
'pyw' => :python,
'rake' => :ruby,
'raydebug' => :raydebug,
'rb' => :ruby,
'rbw' => :ruby,
'rhtml' => :erb,
'rjs' => :ruby,
'rpdf' => :ruby,
'ru' => :ruby, # config.ru
'rxml' => :ruby,
'sass' => :sass,
'sql' => :sql,
'taskpaper' => :taskpaper,
'template' => :json, # AWS CloudFormation template
'tmproj' => :xml,
'xaml' => :xml,
'xhtml' => :html,
'xml' => :xml,
'yaml' => :yaml,
'yml' => :yaml,
'c' => :c,
'cfc' => :xml,
'cfm' => :xml,
'clj' => :clojure,
'css' => :css,
'diff' => :diff,
'dpr' => :delphi,
'erb' => :erb,
'gemspec' => :ruby,
'groovy' => :groovy,
'gvy' => :groovy,
'h' => :c,
'haml' => :haml,
'handlebars' => :handlebars,
'hbs' => :handlebars,
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Who came up with this abbreviation? Is it really used? I mean, we're not on DOS any more…

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Wow, seems to be standard: https://github.com/donpark/hbs, https://github.com/leshill/handlebars_assets. Well, back to 1985 then…

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haha - I blame lazy typists ;)

'htm' => :html,
'html' => :html,
'html.erb' => :erb,
'java' => :java,
'js' => :java_script,
'json' => :json,
'lua' => :lua,
'mab' => :ruby,
'pas' => :delphi,
'patch' => :diff,
'phtml' => :php,
'php' => :php,
'php3' => :php,
'php4' => :php,
'php5' => :php,
'prawn' => :ruby,
'py' => :python,
'py3' => :python,
'pyw' => :python,
'rake' => :ruby,
'raydebug' => :raydebug,
'rb' => :ruby,
'rbw' => :ruby,
'rhtml' => :erb,
'rjs' => :ruby,
'rpdf' => :ruby,
'ru' => :ruby, # config.ru
'rxml' => :ruby,
'sass' => :sass,
'sql' => :sql,
'taskpaper' => :taskpaper,
'template' => :json, # AWS CloudFormation template
'tmproj' => :xml,
'xaml' => :xml,
'xhtml' => :html,
'xml' => :xml,
'yaml' => :yaml,
'yml' => :yaml
}
for cpp_alias in %w[cc cpp cp cxx c++ C hh hpp h++ cu]
TypeFromExt[cpp_alias] = :cpp
Expand Down
74 changes: 74 additions & 0 deletions lib/coderay/scanners/handlebars.rb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,74 @@
module CodeRay
module Scanners

load :html

# Scanner for Handlebars templates.
class Handlebars < Scanner

register_for :handlebars
title 'Handlebars Template'

KINDS_NOT_LOC = HTML::KINDS_NOT_LOC

HANDLEBARS_BLOCK = /
({{[\{\#\/]?)
(.*?)
([\}]}}?)
/xm # :nodoc:

HANDLEBARS_COMMENT_BLOCK = /
{{!
(.*?)
}}
/xm # :nodoc:

START_OF_HANDLEBARS = /{{/ # :nodoc:

protected

def setup
@html_scanner = CodeRay.scanner :html, :tokens => @tokens, :keep_tokens => true, :keep_state => true
@handlebars_attribute_scanner = CodeRay.scanner :html, :tokens => @tokens, :keep_tokens => true, :keep_state => false
end

def reset_instance
super
@html_scanner.reset
@handlebars_attribute_scanner.reset
end

def scan_tokens encoder, options
until eos?
if (match = scan_until(/(?=#{START_OF_HANDLEBARS})/o) || scan_rest) and not match.empty?
@html_scanner.tokenize match, :tokens => encoder

elsif match = scan(/#{HANDLEBARS_COMMENT_BLOCK}/o)
encoder.text_token match, :comment

elsif match = scan(/#{HANDLEBARS_BLOCK}/o)
start_tag = self[1]
code = self[2]
end_tag = self[3]

encoder.begin_group :inline
encoder.text_token start_tag, :inline_delimiter

unless code.empty?
@handlebars_attribute_scanner.tokenize code, :tokens => encoder, :state => :attribute
end

encoder.text_token end_tag, :inline_delimiter unless end_tag.empty?
encoder.end_group :inline

else
raise_inspect 'else-case reached!', encoder
end
end
encoder
end

end

end
end