134 lines
2.7 KiB
Ruby
134 lines
2.7 KiB
Ruby
module CodeRay
|
|
module Scanners
|
|
|
|
load :html
|
|
load :ruby
|
|
|
|
# Nitro XHTML Scanner
|
|
#
|
|
# $Id$
|
|
class NitroXHTML < Scanner
|
|
|
|
include Streamable
|
|
register_for :nitro_xhtml
|
|
|
|
NITRO_RUBY_BLOCK = /
|
|
<\?r
|
|
(?>
|
|
[^\?]*
|
|
(?> \?(?!>) [^\?]* )*
|
|
)
|
|
(?: \?> )?
|
|
|
|
|
<ruby>
|
|
(?>
|
|
[^<]*
|
|
(?> <(?!\/ruby>) [^<]* )*
|
|
)
|
|
(?: <\/ruby> )?
|
|
|
|
|
<%
|
|
(?>
|
|
[^%]*
|
|
(?> %(?!>) [^%]* )*
|
|
)
|
|
(?: %> )?
|
|
/mx
|
|
|
|
NITRO_VALUE_BLOCK = /
|
|
\#
|
|
(?:
|
|
\{
|
|
[^{}]*
|
|
(?>
|
|
\{ [^}]* \}
|
|
(?> [^{}]* )
|
|
)*
|
|
\}?
|
|
| \| [^|]* \|?
|
|
| \( [^)]* \)?
|
|
| \[ [^\]]* \]?
|
|
| \\ [^\\]* \\?
|
|
)
|
|
/x
|
|
|
|
NITRO_ENTITY = /
|
|
% (?: \#\d+ | \w+ ) ;
|
|
/
|
|
|
|
START_OF_RUBY = /
|
|
(?=[<\#%])
|
|
< (?: \?r | % | ruby> )
|
|
| \# [{(|]
|
|
| % (?: \#\d+ | \w+ ) ;
|
|
/x
|
|
|
|
CLOSING_PAREN = Hash.new do |h, p|
|
|
h[p] = p
|
|
end.update( {
|
|
'(' => ')',
|
|
'[' => ']',
|
|
'{' => '}',
|
|
} )
|
|
|
|
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_RUBY})/o) || scan_until(/\z/)) and not match.empty?
|
|
@html_scanner.tokenize match
|
|
|
|
elsif match = scan(/#{NITRO_VALUE_BLOCK}/o)
|
|
start_tag = match[0,2]
|
|
delimiter = CLOSING_PAREN[start_tag[1,1]]
|
|
end_tag = match[-1,1] == delimiter ? delimiter : ''
|
|
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]
|
|
|
|
elsif match = scan(/#{NITRO_RUBY_BLOCK}/o)
|
|
start_tag = '<?r'
|
|
end_tag = match[-2,2] == '?>' ? '?>' : ''
|
|
tokens << [:open, :inline]
|
|
tokens << [start_tag, :inline_delimiter]
|
|
code = match[start_tag.size .. -(end_tag.size)-1]
|
|
@ruby_scanner.tokenize code
|
|
tokens << [end_tag, :inline_delimiter] unless end_tag.empty?
|
|
tokens << [:close, :inline]
|
|
|
|
elsif entity = scan(/#{NITRO_ENTITY}/o)
|
|
tokens << [entity, :entity]
|
|
|
|
elsif scan(/%/)
|
|
tokens << [matched, :error]
|
|
|
|
else
|
|
raise_inspect 'else-case reached!', tokens
|
|
end
|
|
|
|
end
|
|
|
|
tokens
|
|
|
|
end
|
|
|
|
end
|
|
|
|
end
|
|
end
|