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|
module CodeRay
module Scanners
load :html
load :ruby
# RHTML Scanner
class RHTML < Scanner
include Streamable
register_for :rhtml
title 'HTML.ERB'
ERB_RUBY_BLOCK = /
<%(?!%)[=-]?
(?>
[^\-%]* # normal*
(?> # special
(?: %(?!>) | -(?!%>) )
[^\-%]* # normal*
)*
)
(?: -?%> )?
/x
START_OF_ERB = /
<%(?!%)
/x
private
def setup
@ruby_scanner = CodeRay.scanner :ruby, :tokens => @tokens, :keep_tokens => true
@html_scanner = CodeRay.scanner :html, :tokens => @tokens, :keep_tokens => true, :keep_state => true
end
def reset_instance
super
@html_scanner.reset
end
def scan_tokens tokens, options
until eos?
if (match = scan_until(/(?=#{START_OF_ERB})/o) || scan_until(/\z/)) and not match.empty?
@html_scanner.tokenize match
elsif match = scan(/#{ERB_RUBY_BLOCK}/o)
start_tag = match[/\A<%[-=]?/]
end_tag = match[/-?%?>?\z/]
tokens << [:open, :inline]
tokens << [start_tag, :inline_delimiter]
code = match[start_tag.size .. -1 - end_tag.size]
@ruby_scanner.tokenize code
tokens << [end_tag, :inline_delimiter] unless end_tag.empty?
tokens << [:close, :inline]
else
raise_inspect 'else-case reached!', tokens
end
end
tokens
end
end
end
end
|
