On 20/07/09 17:38, Edward Beach wrote:
>
>
>
> On Jul 17, 2:05 am, Tony Mechelynck<[email protected]>
> wrote:
>> On 16/07/09 20:27, Ben Fritz wrote:
>>> On Jul 16, 12:23 pm, Edward Beach<[email protected]> wrote:
>>>> Is there a way to define mappings local to a diff window?
>>
>>>> I have some specific mappings that I would like enabled when I'm in
>>>> diff mode. Normally I would set this using map<buffer> but on some
>>>> occasions I have the buffer in one window and a diff of the buffer in
>>>> another. In the original buffer,&diff == 0 and in the diffed buffer
>>>> &diff == 1 so is there an easy way to enable a mapping specific to the
>>>> window containing the diffed buffer?
>>
>>>> Thanks!
>>
>>> Almost there! Check out :help :map-<expr> for the final piece.
>>
>>> The help may not make this clear, but it seems from experimentation
>>> that<buffer> and<expr> can be used together without trouble.
>>
>> Yes. The reply quoted above may not make this clear, but mappings can be
>> buffer-local but not window-local; so the {rhs} itself has to test
>> whether we're in a diff window or not, and act differently according to
>> the result (maybe returning the {lhs} if we aren't).
>>
>> But since I don't see an autocommand event to detect that a given window
>> has become a diff window, maybe the mapping should be global?
>>
>> map<expr> <F4> (&diff?"osome stuff\e":"\<F4>")
>>
>> Best regards,
>> Tony.
>> --
>
> Thanks!
>
> When I use the<buffer> <expr> (or<expr> <buffer>) combination my
> mapping is pre-pended with an @ sign when I list the mapping:
> i.e @(&diff ? ... )
> and consequently I can't unmap the mapping -- what does the @ mean?
It means that the mapping is buffer-local, see ":help map-listing".
You can unmap the mapping by:
1) making sure that the current buffer is the buffer where the mapping
is defined;
2) use ":unmap {lhs}" with exactly the same {lhs} that you used when
creating the mapping (without <buffer> or <expr>, and with no {rhs}).
Best regards,
Tony.
--
hundred-and-one symptoms of being an internet addict:
85. Choice between paying Compuserve bill and paying for kids education
is a no brainer -- although a bit painful for your kids.
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