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This project is a port of JS/CC to nodejs,


JS/CC is the first available parser development system for JavaScript and ECMAScript-derivates. It has been developed, both, with the intention of building a productive compiler development system and with the intention of creating an easy-to-use academic environment for people interested in how parse table generation is done general in bottom-up parsing.

The platform-independent software unions both: A regular expression-based lexical analyzer generator matching individual tokens from the input character stream and a LALR(1) parser generator, computing the parse tables for a given context-free grammar specification and building a stand-alone, working parser. The context-free grammar fed to JS/CC is defined in a Backus-Naur-Form-based meta language, and allows the insertion of individual semantic code to be evaluated on a rule's reduction.

JS/CC itself has been entirely written in JavaScript. These versions are capable of assembling a complete compiler from a JS/CC parser specification, which is then stored to a .js JavaScript source file.

To use JS/CC and for understanding its internals and behavior, some knowledge of context-free grammars, bottom-up parsing techniques and compiler construction theory, in general, is assumed.


For all documentation read doc file in doc/


node jscc.js [options] filename


-h   --help               Print this usage help
-i   --version            Print version and copyright
-o   --output <file>      Save output source to <file>
-p   --prefix <prefix>    Use <prefix> as sequence pre-fixing methods and variables
-t   --template <file>    Use template file <file> as parser template (by defalut driver_node.js_ located in jscc.js folder)
-v   --verbose            Run in verbose mode
-w   --warnings           Print warnings
-c   --compress           Compress output source using PACKER BASE62
-s   --shrink             Shrink variables of output source using PACKER
-cs  --compress-shrink   Shrink variables of output source and Compress output source using PACKER BASE62
-m   --minimize           Minimize output source using PACKER


For sample grammar see par/ folder.
You will found:
- dragon.par : Port of my own language to javascript (port in progress...)
- php.par    : Grammar from phype project (port of php in progress...)
- ruby.par   : Grammar from phype project (port of ruby in progress)
- calc.par   : Calculator grammar from JS/CC sample
- xpl.par    : Grammar for eXample Programming Language from JS/CC
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