sfeed_curses

commit b8c1cc0140e91f44de035ecc37f470edbaf9bc5c
parent dd851a166a6f62d8ebadbc801c68fbfe40d5d2dd
Author: hhvn <dev@hhvn.uk>
Date:   Fri, 18 Jun 2021 22:03:29 +0100

sfeed_curses.c: handle escape key in lineeditor()

Diffstat:
M
sfeed_curses.c
 | 
15
+++++++++++++--

1 file changed, 13 insertions(+), 2 deletions(-)
diff --git a/sfeed_curses.c b/sfeed_curses.c
@@ -934,7 +934,7 @@ lineeditor(void)
 {
 	char *input = NULL;
 	size_t cap = 0, nchars = 0;
-	int ch;
+	int ch, escape = 0;
 
 	for (;;) {
 		if (nchars + 1 >= cap) {
@@ -943,7 +943,18 @@ lineeditor(void)
 		}
 
 		ch = readch();
-		if (ch == EOF || ch == '\r' || ch == '\n') {
+		if (ch == '\033') {
+			escape = 1;
+			continue;
+		} else if (ch == '[' && escape) {
+			/* some sequence like this isn't an escape:
+			 * ^[[A (up arrow) */
+			escape = 0;
+			write(1, &ch, 1);
+		} else if (escape) {
+			input[0] = '\0';
+			break;
+		} else if (ch == EOF || ch == '\r' || ch == '\n') {
 			input[nchars] = '\0';
 			break;
 		} else if (ch == '\b' || ch == 0x7f) {