Class: CodeRay::Scanners::CSS
- Defined in:
- lib/coderay/scanners/css.rb
Defined Under Namespace
Modules: RE
Constant Summary collapse
- KINDS_NOT_LOC =
[ :comment, :class, :pseudo_class, :type, :constant, :directive, :key, :value, :operator, :color, :float, :content, :delimiter, :error, :important, ]
Constants inherited from Scanner
Scanner::DEFAULT_OPTIONS, Scanner::ScanError
Instance Method Summary collapse
Methods inherited from Scanner
#column, #each, file_extension, #initialize, #lang, #line, #marshal_dump, #marshal_load, normify, #reset, streamable?, #streaming?, #string=, #tokenize, #tokens
Methods included from Plugin
#helper, #included, #plugin_host, #plugin_id, #register_for, #title
Constructor Details
This class inherits a constructor from CodeRay::Scanners::Scanner
Instance Method Details
#scan_tokens(tokens, options) ⇒ Object
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# File 'lib/coderay/scanners/css.rb', line 52 def scan_tokens tokens, value_expected = nil states = [:initial] until eos? kind = nil match = nil if scan(/\s+/) kind = :space elsif case states.last when :initial, :media if scan(/(?>#{RE::Ident})(?!\()|\*/ox) kind = :type elsif scan RE::Class kind = :class elsif scan RE::Id kind = :constant elsif scan RE::PseudoClass kind = :pseudo_class elsif match = scan(RE::AttributeSelector) # TODO: Improve highlighting inside of attribute selectors. tokens << [:open, :string] tokens << [match[0,1], :delimiter] tokens << [match[1..-2], :content] if match.size > 2 tokens << [match[-1,1], :delimiter] if match[-1] == ?] tokens << [:close, :string] next elsif match = scan(/@media/) kind = :directive states.push :media_before_name end when :block if scan(/(?>#{RE::Ident})(?!\()/ox) if value_expected kind = :value else kind = :key end end when :media_before_name if scan RE::Ident kind = :type states[-1] = :media_after_name end when :media_after_name if scan(/\{/) kind = :operator states[-1] = :media end when :comment if scan(/(?:[^*\s]|\*(?!\/))+/) kind = :comment elsif scan(/\*\//) kind = :comment states.pop elsif scan(/\s+/) kind = :space end else raise_inspect 'Unknown state', tokens end elsif scan(/\/\*/) kind = :comment states.push :comment elsif scan(/\{/) value_expected = false kind = :operator states.push :block elsif scan(/\}/) value_expected = false if states.last == :block || states.last == :media kind = :operator states.pop else kind = :error end elsif match = scan(/#{RE::String}/o) tokens << [:open, :string] tokens << [match[0, 1], :delimiter] tokens << [match[1..-2], :content] if match.size > 2 tokens << [match[-1, 1], :delimiter] if match.size >= 2 tokens << [:close, :string] next elsif match = scan(/#{RE::Function}/o) tokens << [:open, :string] start = match[/^\w+\(/] tokens << [start, :delimiter] if match[-1] == ?) tokens << [match[start.size..-2], :content] tokens << [')', :delimiter] else tokens << [match[start.size..-1], :content] end tokens << [:close, :string] next elsif scan(/(?: #{RE::Dimension} | #{RE::Percentage} | #{RE::Num} )/ox) kind = :float elsif scan(/#{RE::Color}/o) kind = :color elsif scan(/! *important/) kind = :important elsif scan(/rgb\([^()\n]*\)?/) kind = :color elsif scan(/#{RE::AtKeyword}/o) kind = :directive elsif match = scan(/ [+>:;,.=()\/] /x) if match == ':' value_expected = true elsif match == ';' value_expected = false end kind = :operator else getch kind = :error end match ||= matched if $CODERAY_DEBUG and not kind raise_inspect 'Error token %p in line %d' % [[match, kind], line], tokens end raise_inspect 'Empty token', tokens unless match tokens << [match, kind] end tokens end |