so                325 ext/pcre/pcrelib/pcreposix.c int rc, so, eo;
so                367 ext/pcre/pcrelib/pcreposix.c   so = pmatch[0].rm_so;
so                372 ext/pcre/pcrelib/pcreposix.c   so = 0;
so                376 ext/pcre/pcrelib/pcreposix.c rc = pcre_exec((const pcre *)preg->re_pcre, NULL, string + so, (eo - so),