Re: [pcre-dev] regexp does not work , but does work on other…

> thanks for the reply one more question
> when i  run the code i allways getting 2 subgroups when i expect to
> get only one
> the "link" (index.html)
> if i add this code ( and modify my abit) .
> #include <stdio.h>  //meat and potatoes
> #include <string.h>
> #include <pcre.h>
> #define OVECCOUNT 30    /* should be a multiple of 3 */
> int main(int argc, char* argv[])
> {
> pcre *re;
> const char *error;
> int erroffset;
> int ovector[OVECCOUNT];
> int rc;

> char *regex = "<a[^>]+href\\s*=\\s*[\"']?([^\"'> ]+)";
> char *data  = "<a href=\"index.html\">PCRE index page</a>";
> re = pcre_compile(
>                regex,   /* the pattern */
>                0,   /* default options */
>                &error,   /* for error message */
>                &erroffset,        /* for error offset */
>                NULL);             /* use default character table */
> if (! re)
> {
>    fprintf(stderr, "PCRE compilation failed at expression offset %d:
> %s\n", erroffset, error);
>    return 1;
> }

> rc = pcre_exec(
>                re,             /* the compiled pattern */
>                NULL,       /* no extra data - we didn't study the pattern */
>                data,    /* the subject string */
>                strlen(data),   /* the length of the subject */
>                0,              /* start at offset 0 in the subject */
>                0,             /* default options */
>                ovector,       /* output vector for substring information */
>                OVECCOUNT);    /* number of elements in the output
> vector */
> if (rc < 0)
> {
>    switch(rc)
>    {
>        case PCRE_ERROR_NOMATCH:
>        printf("No match found in text\n");
>        break;
>    /*
>        More cases defined...
>    */
>        default:
>        printf("Match error %d\n", rc);
>        break;
>         return 1;
>    }
> }
> const char **stringlist;
> int i;
>  int result_match = pcre_get_substring_list(data, ovector, rc, &stringlist);
>  if (result_match < 0)
>    printf("get substring list failed %d\n", result_match);
>  else
>    {
>    for (i = 0; i < rc; i++)
>      printf("%2dL %s\n", i, stringlist[i]);
>    if (stringlist[i] != NULL)
>      printf("string list not terminated by NULL\n");
>    /* free((void *)stringlist); */
>    pcre_free_substring_list(stringlist);
>    }
> }

>> char *regex = "<a[^>]+href\\s*=\\s*[\"']?([^\"'> ]+)";
>>                          ^    ^
>>                          ^    ^
>>                          ^    ^
>> Philip