OptExactInfo 3761 ext/mbstring/oniguruma/regcomp.c OptExactInfo exb; /* boundary */ OptExactInfo 3762 ext/mbstring/oniguruma/regcomp.c OptExactInfo exm; /* middle */ OptExactInfo 3763 ext/mbstring/oniguruma/regcomp.c OptExactInfo expr; /* prec read (?=...) */