cbit_cntrl        201 ext/pcre/pcrelib/pcre_compile.c   cbit_print, cbit_cntrl,  0,             /* ascii */
cbit_cntrl        203 ext/pcre/pcrelib/pcre_compile.c   cbit_cntrl, -1,          0,             /* cntrl */
cbit_cntrl        112 ext/pcre/pcrelib/pcre_maketables.c   if (iscntrl(i)) p[cbit_cntrl  + i/8] |= 1 << (i&7);