0ccae4d8b
Denys Vlasenko
2012-06-11
Subject
Add comments in keyboard escape sequences table
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libbb/read_key.c+10 -5
| @@ -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 , | |