Libraries and tools/HJS
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Revision as of 20:56, 13 February 2007 by Mark Wassell (talk | contribs)
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Javascript - The World's Most Misunderstood Programming Language? [1]
A Javascript [2] parser using Happy and Alex. It will parse the grammer detailed in ECMA-262 with some additions from [3] to support the parsing of specific test cases.
Possible applications of a Javascript interpreter:
- Provide basis for experimenting with monadic interpreters and the addition of things like Software Transactional Memory to a 'mainstream language'
- Basis for other 'large' language parsers
- Embed Javascript in applications and application servers (such as HAppS)
Installing
Comes as a basic Cabal package [4]. If you do change the parser or lexer file you will need to manually run Alex and Happy *and* run FixHappy on the JavaScriptParser.hs file. This will add an 'action' argument to lexer call; this is a 'hack' to get parsing of regular expressions to work.
Todo
- Extend scope of interpreter to all statements
- Include function definition and calls
- Include objects
- Include built in objects and functions