CH_LITERAL
if (ch == CH_LITERAL || ch == '|' ||
(void)putc(CH_LITERAL, fp);
if (ch == CH_LITERAL || ch == '|' ||
(void)putc(CH_LITERAL, fp);
*--ecp->save_cmd = CH_LITERAL;
*p = CH_LITERAL;
(ch) == CH_LITERAL : KEY_VAL((sp), (ch)) == K_VLNEXT)