ESC_Z             105 ext/pcre/pcrelib/pcre_compile.c -ESC_X,      0, -ESC_Z,    '[',   '\\',    ']',    '^',    '_',   /* X - _ */
ESC_Z             134 ext/pcre/pcrelib/pcre_compile.c /*  E8 */     0,-ESC_Z,      0,       0,      0,     0,      0,      0,
ESC_Z            5084 ext/pcre/pcrelib/pcre_compile.c       if (firstbyte == REQ_UNSET && -c > ESC_b && -c < ESC_Z)
ESC_Z            5150 ext/pcre/pcrelib/pcre_compile.c         previous = (-c > ESC_b && -c < ESC_Z)? code : NULL;