[antlr-interest] Looking for a simple answer. :)
ooobles
oobles at hotmail.com
Sun May 26 20:10:30 PDT 2002
Hi..
I've been working with ANTLR for a few weeks now and have had my head
mashed a couple of times over trying to comprehend what it can't do.
So far.. it didn't make me breakfast.. thats about all. :) That is
to say.. great job!
I'm working on trying to parse some syslog entries like..
httpd[13748]: 121 Statistics: duration=0.47 id=HI5l sent=586 rcvd=699
srcif=eth0 src=192.168.42.232/3399 svsrc=10.0.0.2/2444 dstif=eth1
dst=64.154.80.50/80 op=GET arg=http://hg1.hitbox.com/HG?
hc=w147&l=y&hb=WQ500202CFDV94EN0&cd=1&n=ProdAd result="302 Moved
Temporarily" proto=http rule=4
The problem is in the value of various statistics. For instance the
arg value is a http request value. Its value has the potential to
contain all the nasty characters like = that completely destroys
otherwise nicely formated line.
Ideally I'd like my grammer to be:
(ID ASSIGN VALUE)+ // for each name value pair.
The problem is how do I make the VALUE in the lexer match everything
including the = up to the first WS character but not have VALUE match
against everything else?
After reading much of the documents the best answer I could find was
to create a seperate lexer, but this seems like overkill for a single
rule??? Any other ideas?
Thanks,
David.
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