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| author | Denys Vlasenko | 2011-11-03 13:28:22 +0100 |
|---|---|---|
| committer | Denys Vlasenko | 2011-11-03 13:28:22 +0100 |
| commit | 9ce09bc9cb7743f87eb3e536c81d8c303e12bc81 (patch) | |
| tree | ad65a2f47136af7a730b630c4e08532c02ff0fb6 /libbb | |
| parent | 45cdf166dccb4981004bae822f52e48df05aab91 (diff) | |
| download | busybox-9ce09bc9cb7743f87eb3e536c81d8c303e12bc81.zip busybox-9ce09bc9cb7743f87eb3e536c81d8c303e12bc81.tar.gz | |
lineedit: add support for M-b, M-f, M-d, M-Backspace
function old new delta
ctrl_left - 96 +96
ctrl_right - 76 +76
static.esccmds 81 93 +12
read_line_input 3876 3885 +9
------------------------------------------------------------------------------
(add/remove: 2/0 grow/shrink: 2/0 up/down: 193/0) Total: 193 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/lineedit.c | 40 | ||||
| -rw-r--r-- | libbb/read_key.c | 11 |
2 files changed, 48 insertions, 3 deletions
diff --git a/libbb/lineedit.c b/libbb/lineedit.c index 603bbfc..0d23288 100644 --- a/libbb/lineedit.c +++ b/libbb/lineedit.c @@ -2504,6 +2504,44 @@ int FAST_FUNC read_line_input(line_input_t *st, const char *prompt, char *comman vi_cmdmode = 1; input_backward(1); } + /* Handle a few ESC-<key> combinations the same way + * standard readline bindings (IOW: bash) do. + * Often, Alt-<key> generates ESC-<key>. + */ + ic = lineedit_read_key(read_key_buffer, timeout); + switch (ic) { + //case KEYCODE_LEFT: - bash doesn't do this + case 'b': + ctrl_left(); + break; + //case KEYCODE_RIGHT: - bash doesn't do this + case 'f': + ctrl_right(); + break; + //case KEYCODE_DELETE: - bash doesn't do this + case 'd': /* Alt-D */ + { + /* Delete word forward */ + int nc, sc = cursor; + ctrl_right(); + nc = cursor; + input_backward(cursor - sc); + while (--nc >= cursor) + input_delete(1); + break; + } + case '\b': /* Alt-Backspace(?) */ + case '\x7f': /* Alt-Backspace(?) */ + //case 'w': - bash doesn't do this + { + /* Delete word backward */ + int sc = cursor; + ctrl_left(); + while (sc-- > cursor) + input_delete(1); + break; + } + } break; #endif /* FEATURE_COMMAND_EDITING_VI */ @@ -2532,9 +2570,11 @@ int FAST_FUNC read_line_input(line_input_t *st, const char *prompt, char *comman input_backward(1); break; case KEYCODE_CTRL_LEFT: + case KEYCODE_ALT_LEFT: /* bash doesn't do it */ ctrl_left(); break; case KEYCODE_CTRL_RIGHT: + case KEYCODE_ALT_RIGHT: /* bash doesn't do it */ ctrl_right(); break; case KEYCODE_HOME: diff --git a/libbb/read_key.c b/libbb/read_key.c index 5dcd19c..8d72d2a 100644 --- a/libbb/read_key.c +++ b/libbb/read_key.c @@ -40,13 +40,14 @@ int64_t FAST_FUNC read_key(int fd, char *buffer, int timeout) '[','C' |0x80,KEYCODE_RIGHT , '[','D' |0x80,KEYCODE_LEFT , /* ESC [ 1 ; 2 x, where x = A/B/C/D: Shift-<arrow> */ - /* ESC [ 1 ; 3 x, where x = A/B/C/D: Alt-<arrow> */ + /* ESC [ 1 ; 3 x, where x = A/B/C/D: Alt-<arrow> - implemented below */ /* 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> */ '[','H' |0x80,KEYCODE_HOME , /* xterm */ - /* [ESC] ESC [ [2] H - [Alt-][Shift-]Home */ '[','F' |0x80,KEYCODE_END , /* xterm */ + /* [ESC] ESC [ [2] H - [Alt-][Shift-]Home (End similarly?) */ + /* '[','Z' |0x80,KEYCODE_SHIFT_TAB, */ '[','1','~' |0x80,KEYCODE_HOME , /* vt100? linux vt? or what? */ '[','2','~' |0x80,KEYCODE_INSERT , /* ESC [ 2 ; 3 ~ - Alt-Insert */ @@ -86,8 +87,12 @@ int64_t FAST_FUNC read_key(int fd, char *buffer, int timeout) /* '[','1',';','5','B' |0x80,KEYCODE_CTRL_DOWN , - unused */ '[','1',';','5','C' |0x80,KEYCODE_CTRL_RIGHT, '[','1',';','5','D' |0x80,KEYCODE_CTRL_LEFT , + /* '[','1',';','3','A' |0x80,KEYCODE_ALT_UP , - unused */ + /* '[','1',';','3','B' |0x80,KEYCODE_ALT_DOWN , - unused */ + '[','1',';','3','C' |0x80,KEYCODE_ALT_RIGHT, + '[','1',';','3','D' |0x80,KEYCODE_ALT_LEFT , + /* '[','3',';','3','~' |0x80,KEYCODE_ALT_DELETE, - unused */ 0 - /* ESC [ Z - Shift-Tab */ }; pfd.fd = fd; |