[antlr-interest] Re: ANTLR grammar for ANTLR itself.

[Terence Parr]

On Thursday, June 13, 2002, at 01:28  PM, lgcraymer wrote:

> --- In antlr-interest at y..., Terence Parr <parrt at j...> wrote:
>>
>> On Wednesday, June 12, 2002, at 11:45  PM, fumikatsu_moriyama wrote:
>>
>>> Thanks a lot.
>>> Uuu..., I'm ashamed ...
>>
>> There is no shame...you are stronger than most because you actually
> have
>> the courage to look at the inside of antlr! ;) Not even I want to
> look
>> at antlr.g anymore ;)
>
> It's not that bad--there are a few unimplemented features, and it is a
> bit messy in places because of the unified parser/lexer/treewalker
> grammar approach.  For initial viewing, you probably want to use
> ANTLR's -html option (Ter--where did the strip actions option go?  I
> think that that was -g in PCCTS) to generate a file for viewing:  the
> grammar is cluttered with actions which make it a little hard to
> follow.

Yeah, i really want the "show me a hyperlinked grammar" thing that 
actually works well.  I'd also like a simple internal data structure (a 
graph) representing an ANTLR grammar so that one could do things like:

1. build a tool that dumped syntax diagrams
2. build a tool that highlighted nondeterminisms
3. build a prototyping tool that interpreted the graph instead of 
generating code

it would also isolate the front end of antlr from the analysis from the 
code gen phase.

Interesting...

Ter


 

Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/