diff options
Diffstat (limited to 'libbb')
| -rw-r--r-- | libbb/lineedit.c | 60 | ||||
| -rw-r--r-- | libbb/read_key.c | 12 |
2 files changed, 30 insertions, 42 deletions
diff --git a/libbb/lineedit.c b/libbb/lineedit.c index 2cc61db40..ac049f57d 100644 --- a/libbb/lineedit.c +++ b/libbb/lineedit.c @@ -13,7 +13,6 @@ * * This code is 'as is' with no warranty. */ - /* * Usage and known bugs: * Terminal key codes are not extensive, more needs to be added. @@ -23,9 +22,6 @@ * Ctrl-E also works as End. * * The following readline-like commands are not implemented: - * ESC-b -- Move back one word - * ESC-f -- Move forward one word - * ESC-d -- Delete forward one word * CTL-t -- Transpose two characters * * lineedit does not know that the terminal escape sequences do not @@ -2483,6 +2479,24 @@ int FAST_FUNC read_line_input(line_input_t *st, const char *prompt, char *comman while (cursor > 0 && !BB_isspace(command_ps[cursor-1])) input_backspace(); break; + case KEYCODE_ALT_D: { + /* Delete word forward */ + int nc, sc = cursor; + ctrl_right(); + nc = cursor - sc; + input_backward(nc); + while (--nc >= 0) + input_delete(1); + break; + } + case KEYCODE_ALT_BACKSPACE: { + /* Delete word backward */ + int sc = cursor; + ctrl_left(); + while (sc-- > cursor) + input_delete(1); + break; + } #if ENABLE_FEATURE_REVERSE_SEARCH case CTRL('R'): ic = ic_raw = reverse_i_search(); @@ -2625,44 +2639,6 @@ 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, 50); - 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 - sc; - input_backward(nc); - while (--nc >= 0) - 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 */ diff --git a/libbb/read_key.c b/libbb/read_key.c index ace23defb..951786869 100644 --- a/libbb/read_key.c +++ b/libbb/read_key.c @@ -18,8 +18,20 @@ int64_t FAST_FUNC read_key(int fd, char *buffer, int timeout) /* Known escape sequences for cursor and function keys. * See "Xterm Control Sequences" * http://invisible-island.net/xterm/ctlseqs/ctlseqs.html + * Array should be sorted from shortest to longest. */ static const char esccmds[] ALIGN1 = { + '\x7f' |0x80,KEYCODE_ALT_BACKSPACE, + '\b' |0x80,KEYCODE_ALT_BACKSPACE, + 'd' |0x80,KEYCODE_ALT_D , + /* lineedit mimics bash: Alt-f and Alt-b are forward/backward + * word jumps. We cheat here and make them return ALT_LEFT/RIGHT + * keycodes. This way, lineedit need no special code to handle them. + * If we'll need to distinguish them, introduce new ALT_F/B keycodes, + * and update lineedit to react to them. + */ + 'f' |0x80,KEYCODE_ALT_RIGHT, + 'b' |0x80,KEYCODE_ALT_LEFT, 'O','A' |0x80,KEYCODE_UP , 'O','B' |0x80,KEYCODE_DOWN , 'O','C' |0x80,KEYCODE_RIGHT , |