Bug#23097 mysql can't insert korean on mysql prompt.

Problem: libedit is a very pure-ASCII oriented library,
and it is not aware of extended (0x80..0xFF) or even multi-byte
characters. It considered such characters as non-printable
and didn't allow to input them.
Fix: make libedit think that all bytes >= 0x80 are printable.

cmd-line-utils/libedit/el.h

@@ -136,6 +136,8 @@ struct editline {
 
 protected int	el_editmode(EditLine *, int, const char **);
 
+#define el_isprint(x)  ((unsigned char) (x) < 0x80 ? isprint(x) : 1)
+
 #ifdef DEBUG
 #define	EL_ABORT(a)	do { \
 				fprintf(el->el_errfile, "%s, %d: ", \

cmd-line-utils/libedit/key.c

@@ -618,7 +618,7 @@ key__decode_char(char *buf, int cnt, int ch)
 	} else if (ch == '\\') {
 		buf[cnt++] = '\\';
 		buf[cnt] = '\\';
-	} else if (ch == ' ' || (isprint(ch) && !isspace(ch))) {
+	} else if (ch == ' ' || (el_isprint(ch) && !isspace(ch))) {
 		buf[cnt] = ch;
 	} else {
 		buf[cnt++] = '\\';
@@ -660,7 +660,7 @@ key__decode_str(const char *str, char *buf, const char *sep)
 		} else if (*p == '^' || *p == '\\') {
 			*b++ = '\\';
 			*b++ = *p;
-		} else if (*p == ' ' || (isprint((unsigned char) *p) &&
+		} else if (*p == ' ' || (el_isprint((unsigned char) *p) &&
 			!isspace((unsigned char) *p))) {
 			*b++ = *p;
 		} else {

cmd-line-utils/libedit/map.c

@@ -961,7 +961,7 @@ map_init_nls(EditLine *el)
 	el_action_t *map = el->el_map.key;
 
 	for (i = 0200; i <= 0377; i++)
-		if (isprint(i))
+		if (el_isprint(i))
 			map[i] = ED_INSERT;
 }
 

cmd-line-utils/libedit/read.c

@@ -508,7 +508,7 @@ el_gets(EditLine *el, int *nread)
 		    el->el_chared.c_redo.pos < el->el_chared.c_redo.lim) {
 			if (cmdnum == VI_DELETE_PREV_CHAR &&
 			    el->el_chared.c_redo.pos != el->el_chared.c_redo.buf
-			    && isprint((unsigned char)el->el_chared.c_redo.pos[-1]))
+			    && el_isprint((unsigned char)el->el_chared.c_redo.pos[-1]))
 				el->el_chared.c_redo.pos--;
 			else
 				*el->el_chared.c_redo.pos++ = ch;

cmd-line-utils/libedit/refresh.c

@@ -88,7 +88,7 @@ private void
 re_addc(EditLine *el, int c)
 {
 
-	if (isprint(c)) {
+	if (el_isprint(c)) {
 		re_putc(el, c, 1);
 		return;
 	}
@@ -964,7 +964,7 @@ re_refresh_cursor(EditLine *el)
 					h = 1;
 					v++;
 				}
-			} else if (!isprint((unsigned char) c)) {
+			} else if (!el_isprint((unsigned char) c)) {
 				h += 3;
 				if (h > th) {	/* if overflow, compensate */
 					h = h - th;
@@ -1057,7 +1057,7 @@ re_fastaddc(EditLine *el)
 		char mc = (c == '\177') ? '?' : (c | 0100);
 		re_fastputc(el, '^');
 		re_fastputc(el, mc);
-	} else if (isprint((unsigned char) c)) {	/* normal char */
+	} else if (el_isprint((unsigned char) c)) {	/* normal char */
 		re_fastputc(el, c);
 	} else {
 		re_fastputc(el, '\\');