From 78d2ef00f1a55abaa133d33f38f6f20bd8ae2185 Mon Sep 17 00:00:00 2001
From: "Devin J. Pohly" <djpohly@gmail.com>
Date: Mon, 16 Apr 2018 17:22:18 -0500
Subject: [PATCH] add bash/Emacs-like ctrl-key navigation

Also fixes backspace going back to EOL.
---
 src/main.c | 28 +++++++++++++++++++++++-----
 1 file changed, 23 insertions(+), 5 deletions(-)

diff --git a/src/main.c b/src/main.c
index 07cc231..733dbea 100644
--- a/src/main.c
+++ b/src/main.c
@@ -22,8 +22,7 @@
 #include "desktop.h"
 #include "ncui.h"
 
-#define KEY_ENTER_ASCII 10
-#define KEY_BACKSPACE_ASCII 127
+#define KEY_CTRL(c) ((c) & 0x1f)
 
 int main(void)
 {
@@ -86,7 +85,8 @@ int main(void)
 
 		switch(input_key)
 		{
-			case KEY_ENTER_ASCII:
+			case KEY_CTRL('J'): // Enter
+			case KEY_CTRL('M'): // Return
 				if(form.active == form.fields[4])
 				{
 					/* checks for buffer errors */
@@ -140,16 +140,20 @@ int main(void)
 				}
 
 			case KEY_DOWN:
+			case KEY_CTRL('I'): // Tab
+			case KEY_CTRL('N'):
 				form_driver(form.form, REQ_NEXT_FIELD);
 				form_driver(form.form, REQ_END_LINE);
 				break;
 
 			case KEY_UP:
+			case KEY_CTRL('P'):
 				form_driver(form.form, REQ_PREV_FIELD);
 				form_driver(form.form, REQ_END_LINE);
 				break;
 
 			case KEY_RIGHT:
+			case KEY_CTRL('F'):
 				if(form.active == form.fields[0])
 				{
 					de_id = ((de_id + 1) == de_count) ? 0 : de_id + 1;
@@ -163,6 +167,7 @@ int main(void)
 				break;
 
 			case KEY_LEFT:
+			case KEY_CTRL('B'):
 				if(form.active == form.fields[0])
 				{
 					de_id = (de_id == 0) ? (de_count - 1) : de_id - 1;
@@ -175,16 +180,29 @@ int main(void)
 
 				break;
 
-			case KEY_BACKSPACE_ASCII:
 			case KEY_BACKSPACE:
+			case KEY_CTRL('H'): // Backspace
 				form_driver(form.form, REQ_DEL_PREV);
-				form_driver(form.form, REQ_END_LINE);
 				break;
 
 			case KEY_DC:
+			case KEY_CTRL('D'):
 				form_driver(form.form, REQ_DEL_CHAR);
 				break;
 
+			case KEY_CTRL('C'):
+			case KEY_CTRL('U'):
+				form_driver(form.form, REQ_CLR_FIELD);
+				break;
+
+			case KEY_CTRL('A'):
+				form_driver(form.form, REQ_BEG_LINE);
+				break;
+
+			case KEY_CTRL('E'):
+				form_driver(form.form, REQ_END_LINE);
+				break;
+
 			case KEY_F(1):
 				end_form(&form);
 				endwin();