REG_NOMATCH        46 ext/ereg/regex/regex.h #define	REG_NOMATCH	 1
REG_NOMATCH        46 ext/mbstring/oniguruma/onigposix.h #define REG_NOMATCH          1
REG_NOMATCH        91 ext/pcre/pcrelib/pcreposix.h REG_NOMATCH      /* match failed */