[antlr-interest] v2->v3 Skip chars in Lexer? Terrence?
ruslan_zasukhin at valentina-db.com
Sun Apr 17 01:23:54 PDT 2011
On 4/17/11 11:06 AM, "Ruslan Zasukhin" <ruslan_zasukhin at valentina-db.com>
>> but basically it is easy to strip
>> leading and trailing characters as the tokens carry pointers, so get the
>> start pointer, increment it, get the end point, decrement it, now
>> Do not use the built in $token.text->chars as this is slow and just for
>> The token holds a pointer to the start of the text in the
>> original input stream, which is greatly faster and you don¹t do anything
>> at all to the token until and if you use it.
>> You know the token type, so can handle it appropriately.
I have take a look, and I do not see way in C-target access token in lexer
Do you mean that I should care about these pointers LATER, in parser?
Butt hen this again looks as not best solution...
Java developers will remove them in lexer,
C developers in parser?
Some kind of Zoo ...
Please help :-)
And note, that I am C++ developer with 20 years of experience,
do all my best reading ANTLR WIKI and book,and examples,
and which did work with ANTLR v2 for 10 years ...
cannot resolve this *trivial* task in *the best way*
for v3 for about 14 hours now.
I wonder how other C developers was able resolve this problem?
And may be docs, faqs, examples can be improved in this direction?
Thank you, in advance :-)
VP Engineering and New Technology
Paradigma Software, Inc
Valentina - Joining Worlds of Information
[I feel the need: the need for speed]
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