1 files changed, 102 insertions, 0 deletions
diff --git a/lib/coderay/scanners/mush.rb b/lib/coderay/scanners/mush.rb
new file mode 100644
index 0000000..5217ed9
--- /dev/null
+++ b/lib/coderay/scanners/mush.rb
@@ -0,0 +1,102 @@
+module CodeRay module Scanners
+	
+	class Mush < Scanner
+
+		register_for :mush
+		
+		RESERVED_WORDS = [
+		]
+
+		IDENT_KIND = Scanner::WordList.new(:ident, :case_ignore).
+			add(RESERVED_WORDS, :reserved).
+			add(DIRECTIVES, :directive)
+
+		def scan_tokens tokens, options
+
+			state = :initial
+
+			until eos?
+
+				kind = :error
+				match = nil
+
+				if state == :initial
+					
+					if scan(/ \s+ /x)
+						kind = :space
+						
+					elsif scan(%r! \{ \$ [^}]* \}? | \(\* \$ (?: .*? \*\) | .* ) !mx)
+						kind = :preprocessor
+						
+					elsif scan(%r! // [^\n]* | \{ [^}]* \}? | \(\* (?: .*? \*\) | .* ) !mx)
+						kind = :comment
+						
+					elsif scan(/ [-+*\/=<>:;,.@\^|\(\)\[\]]+ /x)
+						kind = :operator
+						
+					elsif match = scan(/ [A-Za-z_][A-Za-z_0-9]* /x)
+						kind = IDENT_KIND[match]
+						
+					elsif match = scan(/ ' ( [^\n']|'' ) (?:'|$) /x)
+						tokens << [:open, :char]
+						tokens << ["'", :delimiter]
+						tokens << [self[1], :content]
+						tokens << ["'", :delimiter]
+						tokens << [:close, :char]
+						next
+						
+					elsif match = scan(/ ' /x)
+						tokens << [:open, :string]
+						state = :string
+						kind = :delimiter
+						
+					elsif scan(/ \# (?: \d+ | \$[0-9A-Fa-f]+ ) /x)
+						kind = :char
+						
+					elsif scan(/ \$ [0-9A-Fa-f]+ /x)
+						kind = :hex
+						
+					elsif scan(/ (?: \d+ ) (?![eE]|\.[^.]) /x)
+						kind = :integer
+						
+					elsif scan(/ \d+ (?: \.\d+ (?: [eE][+-]? \d+ )? | [eE][+-]? \d+ ) /x)
+						kind = :float
+
+					else
+						getch
+					end
+					
+				elsif state == :string
+					if scan(/[^\n']+/)
+						kind = :content
+					elsif scan(/''/)
+						kind = :char
+					elsif scan(/'/)
+						tokens << ["'", :delimiter]
+						tokens << [:close, :string]
+						state = :initial
+						next
+					elsif scan(/\n/)
+						state = :initial
+					else
+						raise "else case \' reached; %p not handled." % peek(1), tokens
+					end
+					
+				else
+					raise 'else-case reached', tokens
+					
+				end
+				
+				match ||= matched
+				raise [match, kind], tokens if kind == :error
+
+				tokens << [match, kind]
+				
+			end
+			
+			tokens
+		end
+
+	end
+
+end end