Function keymacro__decode_str

extern/editline/src/keymacro.c:636–671

keymacro__decode_str(): * Make a printable version of the ey */

 *	Make a printable version of the ey
 */
protected size_t
keymacro__decode_str(const Char *str, char *buf, size_t len, const char *sep)
{
	char *b = buf, *eb = b + len;
	const Char *p;

	b = buf;
	if (sep[0] != '\0') {
		ADDC(sep[0]);
	}
	if (*str == '\0') {
		ADDC('^');
		ADDC('@');
		goto add_endsep;
	}
	for (p = str; *p != 0; p++) {
		Char dbuf[VISUAL_WIDTH_MAX];
		Char *p2 = dbuf;
		ssize_t l = ct_visual_char(dbuf, VISUAL_WIDTH_MAX, *p);
		while (l-- > 0) {
			ssize_t n = ct_encode_char(b, (size_t)(eb - b), *p2++);
			if (n == -1) /* ran out of space */
				goto add_endsep;
			else
				b += n;
		}
	}
add_endsep:
	if (sep[0] != '\0' && sep[1] != '\0') {
		ADDC(sep[1]);
	}
	ADDC('\0');
	if ((size_t)(b - buf) >= len)
	    buf[len - 1] = '\0';
	return (size_t)(b - buf);
}