[antlr-interest] Parse tree in the debugger

Loring Craymer lgcraymer at yahoo.com
Wed Sep 24 07:49:20 PDT 2008


Why hack?  Why not specify a DSL for the debugger/profiler/whatever and make the output conform.  That's a whole lot more maintainable over the long run.

--Loring




----- Original Message ----
> From: Terence Parr <parrt at cs.usfca.edu>
> To: Jean Bovet <antlr-list at arizona-software.ch>
> Cc: antlr mailing list <antlr-interest at antlr.org>
> Sent: Tuesday, September 23, 2008 9:15:08 PM
> Subject: Re: [antlr-interest] Parse tree in the debugger
> 
> Crap. Perhaps we just escape spaces (or remove them as gawd intended) ;)
> 
> Ter
> On Sep 23, 2008, at 9:00 PM, Jean Bovet wrote:
> 
> > Actually the problem lies in the debugger protocol. More  
> > specifically, we are tokenizing the string using white space which  
> > is causing the problem. Look in RemoteDebugEventSocketListener.
> >
> > For example, an exit rule event might look like that:
> >
> > event = {java.lang.String at 3056}"exitRule /Users/bovet/Folder With  
> > Space/DebuggerTreeTest.g x"
> >
> > But it will be tokenized into:
> >
> > elements = {java.lang.String[8]@3057}
> > [0] = {java.lang.String at 3058}"exitRule"
> > [1] = {java.lang.String at 2782}"/Users/bovet/Folder"
> > [2] = {java.lang.String at 2783}"With"
> > [3] = {java.lang.String at 3061}"Space/DebuggerTreeTest.g"
> > [4] = {java.lang.String at 3062}"x"
> >
> > so the "With" becomes the name of the node. We will need to tweak  
> > the protocol a little bit :-)
> >
> > Jean
> >
> > On Sep 23, 2008, at 12:54 PM, Terence Parr wrote:
> >
> >> Awesome news!Thanks for finding this.
> >>
> >> Jean: didn't we fix the whitespace issue in directory names earlier?
> >>
> >> Ter
> >> On Sep 23, 2008, at 12:32 PM, Markus Stoeger wrote:
> >>
> >>> I have finally figured out what is causing the problem.
> >>>
> >>> To reproduce: Put the grammar file into a directory with  
> >>> whitespace in
> >>> its name, like "My Directory". And set the output directory to empty
> >>> (so
> >>> the output will be put into the same directory as the grammar file).
> >>>
> >>> When you launch the debugger on this grammar, it will output silly
> >>> symbol names in the parse tree. The problem goes away when you put  
> >>> the
> >>> grammar into a directory that doesn't contain spaces in its name  
> >>> (like
> >>> "MyDirectory").
> >>>
> >>> Please try this out and let me know if you can reproduce the problem
> >>> now.
> >>>
> >>> Max
> >>>
> >>> Markus Stoeger schrieb:
> >>>> Markus Stoeger schrieb:
> >>>>
> >>>>> Terence Parr schrieb:
> >>>>>
> >>>>>
> >>>>>> Hi gang,Did we ever figure out what's going on here?
> >>>>>> Ter
> >>>>>>
> >>>>>>
> >>>>> I've bought a new notebook yesterday and will try it out on that
> >>>>> yet new
> >>>>> system as soon as possible (probably on sunday).
> >>>>>
> >>>>>
> >>>> I've tried it out right now and it works on the new system! I just
> >>>> compiled the simple grammar that I have posted before (with the x
> >>>> +y) and
> >>>> all symbols are displayed correctly in the debugger's parse tree
> >>>> view now.
> >>>>
> >>>> But I still don't understand why it doesn't work on the old system,
> >>>> on
> >>>> the system at work and on the VMWare system.
> >>>>
> >>>> One difference between the systems is XP and Vista. I'm running XP
> >>>> (multilang) on all systems where it displays those "ands". Java
> >>>> versions
> >>>> are identical (1.6.7).
> >>>>
> >>>> Max
> >>>>
> >>>>
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> >>>>
> >>>
> >>>
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> >>
> >>
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