cbit_cntrl        192 pcre/pcre_compile.cpp   cbit_print, cbit_cntrl,  0,             /* ascii */
cbit_cntrl        194 pcre/pcre_compile.cpp   cbit_cntrl, -1,          0,             /* cntrl */
cbit_cntrl        114 pcre/pcre_maketables.cpp   if (VMPI_iscntrl(i)) p[cbit_cntrl  + i/8] |= 1 << (i&7);