ISLOWER 1602 src/regex-emacs.c case RECC_LOWER: return ISLOWER (ch) != 0; ISLOWER 3626 src/regex-emacs.c (ISUPPER (corig) || (!NILP (canon_table) && ISLOWER (corig)))) || ISLOWER 3628 src/regex-emacs.c (ISLOWER (corig) || (!NILP (canon_table) && ISUPPER (corig)))) || ISLOWER 5325 test/manual/etags/c-src/etags.c if (ISLOWER (s[pos]) || (s[pos] == '_'))