Building

It's recommended that you build this software with the latest versions of flex and bison.

You can download flex here: http://flex.sourceforge.net/

And bison here: http://www.gnu.org/software/bison/

This software was developed using flex version 2.5.35 and bison version 2.3. Please note that flex 2.5.4 is OLDER than 2.5.35, and will not be able to build this software.

To build simply execute make fbjs. You can ignore the sign warning in yy_get_next_buffer; I'm pretty sure that's a bug in flex and not in libfbjs.

How to use

To apply the FBJS2 transformations to a program make fbjs and pipe a program to fbjs. In cli.cpp you'll find the code needed to invoke this transformation.

To use the FBJS2 parser in other software you may want to check out jsbeautify.cpp. Documentation is paltry, but it should be pretty easy to get up to speed if you have a familiarity of Javascript and C++.

Notes

• NodeString expressions are implemented poorly right now. Instead of parsing what's in the string we just grab the raw contents from code. This was just a hack because I didn't feel like writing the state machine to convert \x, \u, \0, etc into bytes.
• There will be a memory leak when you attempt to parse a program with a syntax error in it. This is because the authority of freeing allocated nodes is left to the parent node. The problem is that the allocated child nodes aren't added to the AST until the very last reduciton. Thus, when a ParseException is raised the allocated nodes are lost since they never became associated with a managed node.
• Handling of virtual semicolons is probably not to spec.