From 6d43b932c0af090dc4cb89ce0e494c4cfd3c4f7d Mon Sep 17 00:00:00 2001
From: P. J. McDermott <pj@pehjota.net>
Date: Fri, 06 Aug 2021 19:34:17 -0400
Subject: tk: Handle Backspace and Delete keys in text

---
diff --git a/src/tk/text.c b/src/tk/text.c
index 2a77691..1cbeb50 100644
--- a/src/tk/text.c
+++ b/src/tk/text.c
@@ -64,6 +64,7 @@ _mftk_text_key_event(struct mftk_widget *w, SDL_Event *e)
 {
 	struct mftk_text *t = (struct mftk_text *) w;
 	int               len;
+	int               i;
 
 	switch (e->type) {
 		case SDL_KEYDOWN:
@@ -87,6 +88,25 @@ _mftk_text_key_event(struct mftk_widget *w, SDL_Event *e)
 				case SDLK_END:
 					t->cur = strlen(t->val);
 					break;
+				case SDLK_BACKSPACE:
+					if (t->cur <= 0) {
+						break;
+					}
+					--t->cur;
+					len = strlen(t->val);
+					for (i = t->cur; i < len; ++i) {
+						t->val[i] = t->val[i + 1];
+					}
+					break;
+				case SDLK_DELETE:
+					len = strlen(t->val);
+					if (t->cur >= len) {
+						break;
+					}
+					for (i = t->cur; i < len; ++i) {
+						t->val[i] = t->val[i + 1];
+					}
+					break;
 				default:
 					break;
 			}
--
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