REG_NOMATCH        46 ext/mbstring/oniguruma/onigposix.h #define REG_NOMATCH          1
REG_NOMATCH        87 ext/pcre/pcrelib/pcreposix.h REG_NOMATCH      /* match failed */
REG_NOMATCH        44 regex/regex.h  #define	REG_NOMATCH	 1