[antlr-interest] strong error recovery
Neurosurg
khamenya at mail.ru
Wed Jul 28 05:29:30 PDT 2004
Hi all,
the typical input for my parser contains a lot of
unregular garbage between formulae. I have to recognize
and extract valid formulae.
Here goes an example.
>>From input :
asd3 a#$23+5)@tyu((5+7)*5pppp
parser should extract:
3
23+5
(5+7)*5
Any chances with ANTLR engine?
w.r.t. subject I have found already:
1. "filter=..." option (BTW, which is available for the Lexer only)
2. options "ignore", which was used in HTML parser example (also for
Lexer only),
3. nice exception handling support for grammar
but it doesn't look much helping still.
Any good hints/comments?
thanks a priori,
Valery.
P.S. I've found antlr just recently, before I've
used lex/yacc and flex/bison.
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