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Description
Previous discussions: #2446 #4302
Alex and Happy are lexer and parser generators (respectively) for Haskell, based on Lex and Yacc for C. They also share extensions with Lex and Yacc, and as such are misclassified as them currently:
~200 Alex files misclassified as Lex ~1250 Happy files misclassified as Yacc
Additionally, #4952 introduced an Alex file as a sample file for Lex, which is incorrect.
Below are the templates for both Alex and Happy. The reason this is an issue and not a PR is that I'm not aware of any TextMate grammars for either of them. Currently however they are using Lex and Yacc's grammars, which result in nonsense highlighting. If they can be added without having grammars I can open a PR for them.
Language name
Alex
URL of example repository
https://github.com/haskell/alex/blob/master/src/Scan.x
Most popular extensions
- .x
Detected language
- Lex
- Logos
Language name
Happy
URL of example repository
https://github.com/haskell/alex/blob/master/src/Parser.y
Most popular extensions
- .y
Detected language
- Yacc