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Add comments in keyboard escape sequences table

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Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko 2012-06-11 14:40:17 +02:00
parent d3dff879f0
commit 0ccae4d8b3
1 changed files with 10 additions and 5 deletions
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15
libbb/read_key.c
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@ -15,7 +15,10 @@ int64_t FAST_FUNC read_key(int fd, char *buffer, int timeout)
const char *seq;
int n;
/* Known escape sequences for cursor and function keys */
/* Known escape sequences for cursor and function keys.
* See "Xterm Control Sequences"
* http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
*/
static const char esccmds[] ALIGN1 = {
'O','A' |0x80,KEYCODE_UP ,
'O','B' |0x80,KEYCODE_DOWN ,
@ -44,6 +47,8 @@ int64_t FAST_FUNC read_key(int fd, char *buffer, int timeout)
/* ESC [ 1 ; 4 x, where x = A/B/C/D: Alt-Shift-<arrow> */
/* ESC [ 1 ; 5 x, where x = A/B/C/D: Ctrl-<arrow> - implemented below */
/* ESC [ 1 ; 6 x, where x = A/B/C/D: Ctrl-Shift-<arrow> */
/* ESC [ 1 ; 7 x, where x = A/B/C/D: Ctrl-Alt-<arrow> */
/* ESC [ 1 ; 8 x, where x = A/B/C/D: Ctrl-Alt-Shift-<arrow> */
'[','H' |0x80,KEYCODE_HOME , /* xterm */
'[','F' |0x80,KEYCODE_END , /* xterm */
/* [ESC] ESC [ [2] H - [Alt-][Shift-]Home (End similarly?) */
@ -64,10 +69,10 @@ int64_t FAST_FUNC read_key(int fd, char *buffer, int timeout)
'[','7','~' |0x80,KEYCODE_HOME , /* vt100? linux vt? or what? */
'[','8','~' |0x80,KEYCODE_END , /* vt100? linux vt? or what? */
#if 0
'[','1','1','~'|0x80,KEYCODE_FUN1 ,
'[','1','2','~'|0x80,KEYCODE_FUN2 ,
'[','1','3','~'|0x80,KEYCODE_FUN3 ,
'[','1','4','~'|0x80,KEYCODE_FUN4 ,
'[','1','1','~'|0x80,KEYCODE_FUN1 , /* old xterm, deprecated by ESC O P */
'[','1','2','~'|0x80,KEYCODE_FUN2 , /* old xterm... */
'[','1','3','~'|0x80,KEYCODE_FUN3 , /* old xterm... */
'[','1','4','~'|0x80,KEYCODE_FUN4 , /* old xterm... */
'[','1','5','~'|0x80,KEYCODE_FUN5 ,
/* [ESC] ESC [ 1 5 [;2] ~ - [Alt-][Shift-]F5 */
'[','1','7','~'|0x80,KEYCODE_FUN6 ,