ctype_letter      143 srclib/pcre/dftables.c   ctype_space, ctype_letter, ctype_digit, ctype_xdigit, ctype_word,
ctype_letter      131 srclib/pcre/maketables.c   if (isalpha(i)) x += ctype_letter;
ctype_letter     1889 srclib/pcre/pcre.c while ((cd->ctypes[*ptr] & ctype_letter) != 0) ptr++;
ctype_letter       71 srclib/pcre/study.c if (caseless && (cd->ctypes[c] & ctype_letter) != 0)