Index: packages/petitparser/lib/src/debug/trace.dart |
diff --git a/packages/petitparser/lib/src/debug/trace.dart b/packages/petitparser/lib/src/debug/trace.dart |
deleted file mode 100644 |
index d47deb8736dddf193686df24236f6dc0dbb1fae7..0000000000000000000000000000000000000000 |
--- a/packages/petitparser/lib/src/debug/trace.dart |
+++ /dev/null |
@@ -1,39 +0,0 @@ |
-part of petitparser.debug; |
- |
-/// Returns a transformed [parser] that when being used to read input prints a |
-/// trace of all activated parsers and their respective parse results. |
-/// |
-/// For example, the snippet |
-/// |
-/// var parser = letter() & word().star(); |
-/// trace(parser).parse('f1'); |
-/// |
-/// produces the following output: |
-/// |
-/// Instance of 'SequenceParser' |
-/// Instance of 'CharacterParser'[letter expected] |
-/// Success[1:2]: f |
-/// Instance of 'PossessiveRepeatingParser'[0..*] |
-/// Instance of 'CharacterParser'[letter or digit expected] |
-/// Success[1:3]: 1 |
-/// Instance of 'CharacterParser'[letter or digit expected] |
-/// Failure[1:3]: letter or digit expected |
-/// Success[1:3]: [1] |
-/// Success[1:3]: [f, [1]] |
-/// |
-/// Indentation signifies the activation of a parser object. Reverse indentation |
-/// signifies the returning of a parse result either with a success or failure |
-/// context. |
-Parser trace(Parser parser, [OutputHandler output = print]) { |
- var level = 0; |
- return transformParser(parser, (each) { |
- return new ContinuationParser(each, (continuation, context) { |
- output('${_repeat(level, ' ')}$each'); |
- level++; |
- var result = continuation(context); |
- level--; |
- output('${_repeat(level, ' ')}$result'); |
- return result; |
- }); |
- }); |
-} |