The language-javascript package

[Tags:bsd3, library, test]

Parses Javascript into an Abstract Syntax Tree (AST). Initially intended as frontend to hjsmin.

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Versions 0.0.1, 0.0.2, 0.0.3, 0.1.0, 0.2.0, 0.2.1, 0.2.2, 0.3.0, 0.4.0, 0.4.1, 0.4.2, 0.4.3, 0.4.4, 0.4.5, 0.4.6, 0.4.7, 0.4.8, 0.4.9, 0.4.10, 0.5.0, 0.5.1, 0.5.2, 0.5.3, 0.5.4, 0.5.5, 0.5.6, 0.5.7, 0.5.8, 0.5.9, 0.5.11, 0.5.12, 0.5.13,,,,,,,,,,,,,,,,,,,,,,
Dependencies array (>=0.3 && <0.5), base (==4.*), containers (>=0.2 && <0.5), HUnit, mtl (>=1.1 && <2.9), QuickCheck (==2.*), test-framework, test-framework-hunit, utf8-light (>=0.4 && <1.0) [details]
License BSD3
Copyright (c) 2010 Alan Zimmerman
Author Alan Zimmerman
Category Language
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Source repository head: git clone git://
Uploaded Thu Jan 13 21:24:53 UTC 2011 by AlanZimmerman
Distributions Arch:, Debian:, Fedora:, FreeBSD:, LTSHaskell:, NixOS:, Stackage:, Tumbleweed:
Downloads 35192 total (1070 in the last 30 days)
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Status Docs uploaded by user
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Maintainer's Corner

For package maintainers and hackage trustees

Readme for language-javascript

Readme for language-javascript-0.3.0

Parser for JavaScript

Based (loosely) on language-python

How to build


cabal clean && cabal configure && cabal build


cabal clean && cabal configure -fbuildtests && cabal build

Running the tests


To debug the grammar

happy -iparse.txt -g -a  -d src/Language/JavaScript/Parser/Grammar.y 

This generates src/Language/JavaScript/Parser/Grammar.hs, delete this
when done with the debug version

UTF8/Unicode version 

This requires, in particular the utf8
branch, to generate the Lexer.hs file

$ git clone
$ cd Alex
$ git checkout utf8
$ cabal install

This will put a utf8 enabled alex in ~/.cabal/bin

To switch back to the standard version, 

$ cabal install --reinstall alex


0.3.0 ECMA-262 edition 5 compliance.  Required adding JSFunctionExpression and JSPropertyAccessor to the AST.

0.2.2 Heading toward compliance with edition 5. Trailing commas allowed in array literals too.

0.2.1 Allow trailing comma in object literal

0.2.0 ECMAScript 3 allows function expressions to have names, AST.JSFunctionExpression now reflects this

0.1.0 Simplified AST by removing JSElement and JSElementList components

0.0.3 Support for unicode in source. At the moment it only supports
UTF8 encoding, does not recognise byte order marks or UTF-16/UTF-32

0.0.2 Multiline comments were processed in greedy form, now end of
comment recognised properly. Thanks to Tony Morris for reporting this.

0.0.1 Initial release