Regular expressions, C++ kai linux

[V13]

On Tuesday 25 June 2002 15:07, Dimitris Stasinopoulos wrote:
[...]

Steile an mporeis kati poy na kanei compile kai na coriazei...
Epimeno oti to lathos einai kapoy alloy, eidika meta apo ta ypoloipa poy 
anafereis. To parakato, den moy coriase..

#include <sys/types.h>
#include <regex.h>
#include <stdlib.h>
#include <stdio.h>

char * cc_strstr_nocase(char * haystack, char * needle)
{
regex_t preg;
regmatch_t pmatch;
int err_no=0;
int offset=0;

    if(haystack==NULL)
    return NULL;

    if(needle==NULL)
    return haystack;

err_no=regcomp(&preg, needle, REG_ICASE);
    if(err_no)
    return NULL;

err_no=regexec(&preg, haystack, 1, &pmatch, 0);
    if(err_no)
    {
    regfree(&preg);
    return NULL;
    }

offset=pmatch.rm_so;
regfree(&preg);
return haystack+offset;
}

int main()
{
        char    *a="loAbc";
        char    *b="a";
        char    *d;

        d=cc_strstr_nocase(a,b);
        printf("%s %s %s\n",a,b,d);
}

<<V13>>