[grammarians] Visualization of Ruby's grammar

[Terence Parr]

On Oct 27, 2006, at 11:35 AM, Charles Oliver Nutter wrote:

> Nick Sieger wrote:
>> Thought you guys might find this interesting.  I took parse.y and
>> generated a dependency graph of it using ANTLRWorks.  (Note that I
>> didn't use Rubyfront's or Sara's ANTLR grammar, that could be  
>> something
>> to do next).
>>
>> http://blog.nicksieger.com/articles/2006/10/27/visualization-of- 
>> rubys-grammar
>>
>> Any keen observations?  Next steps?
>
> So how far off from a usable grammar is what you fed to ANTLRWorks? Is
> this mostly a neat way to visualize the YACC grammar, or is this
> something usable? Anything that can reliably take the YACC grammar,
> massage it a bit, and produce a new ANLTR grammar out of that could be
> pretty useful.

Yeah, perhaps we should integrate the bison converter into  
ANTLRWorks. :)

Note that AW has some refactoring in there already to do "..." to  
'...' and other stuff.

Ter