simpler input escape sequence management - iomenu - interactive terminal-based selection menu
HTML git clone git://bitreich.org/iomenu git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/iomenu
DIR Log
DIR Files
DIR Refs
DIR Tags
DIR README
DIR LICENSE
---
DIR commit 09d7cdbc37907c01400e2193f4eafba74736aa7d
DIR parent 2425ac3f4cb13eef4db1e4e4d66feede9bf3ab84
HTML Author: Josuah Demangeon <josuah.demangeon@gandi.net>
Date: Mon, 21 Aug 2017 15:40:31 +0200
simpler input escape sequence management
Diffstat:
M iomenu.c | 35 ++++++++++---------------------
1 file changed, 11 insertions(+), 24 deletions(-)
---
DIR diff --git a/iomenu.c b/iomenu.c
@@ -14,10 +14,9 @@
#define CONTROL(char) (char ^ 0x40)
#define ALT(char) (char + 0x80)
+#define ESC(char) (char + 0x80 + 0x80)
#define MIN(X, Y) (((X) < (Y)) ? (X) : (Y))
-enum { KEY_UP = 0x81, KEY_DOWN, PG_UP, PG_DOWN };
-
static struct winsize ws;
static struct termios termios;
static int ttyfd;
@@ -341,22 +340,26 @@ top:
filter();
break;
- case KEY_UP:
+ case ESC('A'): /* up */
case CONTROL('P'):
move(-1);
break;
- case KEY_DOWN:
+ case ESC('B'): /* down */
case CONTROL('N'):
move(+1);
break;
- case PG_UP:
+ case ESC('5'):
+ if (fgetc(stdin) != '~') break;
+ /* FALLTHROUGH */
case ALT('v'):
movepg(-1);
break;
- case PG_DOWN:
+ case ESC('6'):
+ if (fgetc(stdin) != '~') break;
+ /* FALLTHROUGH */
case CONTROL('V'):
movepg(+1);
break;
@@ -373,24 +376,8 @@ top:
return EXIT_SUCCESS;
case ALT('['):
- switch (fgetc(stdin)) {
- case 'A':
- key = KEY_UP;
- goto top;
- case 'B':
- key = KEY_DOWN;
- goto top;
- case '5':
- if (fgetc(stdin) == '~') {
- key = PG_UP;
- goto top;
- }
- case '6':
- if (fgetc(stdin) == '~') {
- key = PG_DOWN;
- goto top;
- }
- }
+ key = ESC(fgetc(stdin));
+ goto top;
case 033: /* escape / alt */
key = ALT(fgetc(stdin));