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Bison/yacc grammar for ECMA Scrip (javascript)

Hi,
   I have to write a lex/flex and Bison/yacc grammar for javascripts. Since javascripts follows ECMA Script specification, I have to write a lex/flex and Bison/yacc grammar from ECMA Scripts. Anybody knows grammar or any link where I can get grammar for ECMA Script.

Thanks in advance,
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anton_shiban
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anton_shiban
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Infinity08Commented:
Not one specifically for Yacc, but take a look at Scriptonite :

        http://sourceforge.net/projects/scriptonite/

which contains a full ECMAScript grammar.


This page links to several grammars for ANTLR :

        http://www.antlr.org/grammar/list

Have a look through it - there are several for ECMAScript, JavaScript.
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Infinity08Commented:
And here's the ECMAScript standard :

        http://www.ecma-international.org/publications/standards/Ecma-262.htm

Which contains the grammar in appendix A.
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