Symbol: letnum
bin/ksh/expr.c
482
for (; letnum(c); c = *cp)
bin/ksh/expr.c
511
for (; c != '_' && (letnum(c) || c == '#'); c = *cp++)
bin/ksh/lex.c
1236
if (!letnum(c)) {
bin/ksh/var.c
477
} else if (letnum(c)) {
bin/ksh/var.c
805
while (*++s && letnum(*s))
bin/ksh/var.c
822
while (s[0] == CHAR && letnum(s[1]));
bin/ksh/vi.c
25
#define is_wordch(c) (letnum(c))