REG_EBRACK         52 ext/mbstring/oniguruma/onigposix.h #define REG_EBRACK           7
REG_EBRACK         76 ext/pcre/pcrelib/pcreposix.h REG_EBRACK,      /* unbalanced [] */
REG_EBRACK         50 regex/regex.h  #define	REG_EBRACK	 7