Date: Mon, 02 May 2011 14:13:11 +0200 From: Martin =?ISO-8859-1?B?TfZsbGVy?= <moeller.akt@googlemail.com> To: <freebsd-hackers@freebsd.org> Subject: Re: [LIBC] Modfied Version of sscanf Message-ID: <C9E46C77.389%moeller.akt@googlemail.com> In-Reply-To: <20110501162925.GB47497@stack.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
Hello,
Thanks for all the replies.
We have so far discovered the following suggetions for the parsing Problem:
Using:
o a tokenizer/parser is too much overhead for such a simple task
o strchr, memchr is too low-level and not elegant enough
o strtok would not even parse (tokenize) this simple example
o a regexp library: How would you solve the problem with a regexp lib ?
Criteria:
o Receive the value of <resource>
o Check the Environment: Is <resource> really sourrounded by 'GET ' and
'HTTP/1.1' ?!
I need a function which accepts BNF-style rules.
E.g.:
char resource [512];
ret = bnfparse (request, "GET %s HTTP/1.1", resource);
Ret would be $(NUMBER OF FORMAT SPECIFIERS, successfully handled) +env.
Env would be 1 if the Environment passes, and 0 is not.
Any comments ?
Best regards,
Martin
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?C9E46C77.389%moeller.akt>