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Support bind SEQ to print a binding for SEQ

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This commit is contained in:
Kevin Ballard 2014-09-22 21:30:44 -07:00
parent 80078491bd
commit 5b33e60752
2 changed files with 37 additions and 7 deletions
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36
builtin.cpp
View file

@ -516,23 +516,24 @@ static int get_terminfo_sequence(const wchar_t *seq, wcstring *out_seq)
{
return 1;
}
wcstring eseq = escape_string(seq, 0);
switch (errno)
{
case ENOENT:
{
append_format(stderr_buffer, _(L"%ls: No key with name '%ls' found\n"), L"bind", seq);
append_format(stderr_buffer, _(L"%ls: No key with name '%ls' found\n"), L"bind", eseq.c_str());
break;
}
case EILSEQ:
{
append_format(stderr_buffer, _(L"%ls: Key with name '%ls' does not have any mapping\n"), L"bind", seq);
append_format(stderr_buffer, _(L"%ls: Key with name '%ls' does not have any mapping\n"), L"bind", eseq.c_str());
break;
}
default:
{
append_format(stderr_buffer, _(L"%ls: Unknown error trying to bind to key named '%ls'\n"), L"bind", seq);
append_format(stderr_buffer, _(L"%ls: Unknown error trying to bind to key named '%ls'\n"), L"bind", eseq.c_str());
break;
}
}
@ -763,8 +764,33 @@ static int builtin_bind(parser_t &parser, wchar_t **argv)
case 1:
{
res = STATUS_BUILTIN_ERROR;
append_format(stderr_buffer, _(L"%ls: Expected zero or at least two parameters, got %d\n"), argv[0], argc-woptind);
wcstring seq;
if (use_terminfo)
{
if (!get_terminfo_sequence(argv[woptind], &seq))
{
res = STATUS_BUILTIN_ERROR;
// get_terminfo_sequence already printed the error
break;
}
}
else
{
seq = argv[woptind];
}
if (!builtin_bind_list_one(seq, bind_mode))
{
res = STATUS_BUILTIN_ERROR;
wcstring eseq = escape_string(argv[woptind], 0);
if (use_terminfo)
{
append_format(stderr_buffer, _(L"%ls: No binding found for key '%ls'\n"), argv[0], eseq.c_str());
}
else
{
append_format(stderr_buffer, _(L"%ls: No binding found for sequence '%ls'\n"), argv[0], eseq.c_str());
}
}
break;
}

8
doc_src/bind.txt
View file

@ -4,6 +4,7 @@
\fish{synopsis}
bind [(-M | --mode) MODE] [(-m | --sets-mode) NEW_MODE]
[(-k | --key)] SEQUENCE COMMAND [COMMAND...]
bind [(-M | --mode) MODE] [(-k | --key)] SEQUENCE
bind (-K | --key-names) [(-a | --all)]
bind (-f | --function-names)
bind (-e | --erase) [(-M | --mode) MODE]
@ -12,8 +13,7 @@ bind (-e | --erase) [(-M | --mode) MODE]
\subsection bind-description Description
`bind` adds a binding for the specified key sequence to the
specified command.
`bind` adds a binding for the specified key sequence to the specified command.
SEQUENCE is the character sequence to bind to. These should be written as <a href="index.html#escapes">fish escape sequences</a>. For example, because pressing the Alt key and another character sends that character prefixed with an escape character, Alt-based key bindings can be written using the `\e` escape. For example, @key{Alt,w} can be written as `\ew`. The control character can be written in much the same way using the `\c` escape, for example @key{Control,X} (^X) can be written as `\cx`. Note that Alt-based key bindings are case sensitive and Control-based key bindings are not. This is a constraint of text-based terminals, not `fish`.
@ -27,6 +27,10 @@ When `COMMAND` is a shellscript command, it is a good practice to put the actual
If such a script produces output, the script needs to finish by calling `commandline -f repaint` in order to tell fish that a repaint is in order.
When multiple `COMMAND`s are provided, they are all run in the specified order when the key is pressed.
If no `SEQUENCE` is provided, all bindings (or just the bindings in the specified `MODE`) are printed. If `SEQUENCE` is provided without `COMMAND`, just the binding matching that sequence is printed.
Key bindings are not saved between sessions by default. To save custom keybindings, edit the `fish_user_key_bindings` function and insert the appropriate `bind` statements.
Key bindings may use "modes", which mimics Vi's modal input behavior. The default mode is "default", and every bind applies to a single mode. The mode can be viewed/changed with the `$fish_bind_mode` variable.