question about the \G anchor and onig_search_gpos

[dahakawang]

hi,

let's say we have a regex /\Gabc/ and target string is "123abcdef", if we set gpos at offset 3 in the target string, then the regex is supposed to match "abc" in the target string, right?

can someone please advise why below code not work as my expected?

    UChar* pattern = (UChar*) "\\Gabc";
    UChar* pattern_end = (UChar*) (pattern + strlen(pattern));
    OnigErrorInfo oni_error;
    regex_t* regex;
    int code = onig_new(&regex, pattern, pattern_end, ONIG_OPTION_CAPTURE_GROUP, ONIG_ENCODING_UTF8, ONIG_SYNTAX_DEFAULT,&oni_error);
    if (code != ONIG_NORMAL) printf("error create regex\n");

    UChar* str = (UChar*)"123abcdef";
    UChar* end = str + strlen(str);
    UChar* gpos = str + 3;
    UChar* start = str;
    OnigRegion* region = onig_region_new();
    code = onig_search_gpos(regex, str, end, gpos, start, end, region, ONIG_OPTION_NONE);
    if (code == ONIG_MISMATCH) {
        printf("can't match\n");   // output this, why???
    }else {
        printf("matched\n");
    }

[k-takata]

Sorry for the very late response.
This was a bug, and I committed the fix to devel-6.0 branch.
Thank you.