[antlr-interest] Question with greedy
Andreas Volz
lists at brachttal.net
Thu Sep 24 15:19:11 PDT 2009
Am Wed, 23 Sep 2009 15:29:32 -0700 schrieb Jim Idle:
> > Could anyone explain this error and how to prevent it?
> >
>
> Well, you have not specified to the lexer what it should do with
> those chars (I assume that this is C from your code above):
>
> NL : ('\r' | '\n')+ { $channel=HIDDEN; } ;
> ANY : . { SKIP(); } ; // Always make this the very last lexer rule
Thanks for your answers. I tried it and it works. Now I've the next
problem that I tried to solve with a greedy=false rule, but failed.
Input Data:
key:value
key:value
key:value
key:value
key:value
For key are all chars allowed until the first ':' arrives. For value
all chars are allowed. Also another ':' which should no be handled
special. My example works, but it fails e.g. is value is an URL
(http://...).
Could you help me again?
regards
Andreas
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