allow_zero       1126 ext/pcre/pcrelib/pcre_exec.c     allow_zero = FALSE;
allow_zero       1207 ext/pcre/pcrelib/pcre_exec.c     if (allow_zero || matched_once)
allow_zero       1222 ext/pcre/pcrelib/pcre_exec.c     allow_zero = FALSE;
allow_zero       1266 ext/pcre/pcrelib/pcre_exec.c     if (matched_once || allow_zero)
allow_zero       1903 ext/pcre/pcrelib/pcre_exec.c     allow_zero = TRUE;