On 18/06/11 19:52, Ian Liu Rodrigues wrote:
Dear list,
When I press ALT_C in GVim, it generates the character "ã" (a tilde).
This is problematic since I can't create an imap to ALT_C, for typing
"ã" will also trigger the mapping.
I'm interested in fixing this bug and providing a patch, but I've never
looked in Vim's code, so if someone could give me an entry point, I
would appreciate.
Cheers,
Ian L.
It's not a bug, it's a feature.
Alt+ something is represented in Vim by setting the high bit, so Alt+c
(0x80 + 0x63) and ã (0xE3) are identical. This is known,
backward-compatible and documented: see :help :map-alt-keys
If you map something to <M-c>, ã will trigger it, and vice-versa.
Similarly, in another range, if you map something to <C-I>, <Tab> will
trigger it and vice-versa.
Morality: If you need to type in Portuguese, don't map Alt-c in Insert
mode (in Normal more it usually won't matter). You shouldn't use
Insert-mode Alt-u either, because that's synonymous with õ (o-tilde).
If you weren't typing Portuguese but for instance English or French,
with only occasional use of Portuguese diacritics in a very few foreign
names, you could then, perhaps, apply the mapping anyway, and use Ctrl-V
followed by ã or by õ when you needed the Portuguese letter. But I don't
recommend it for Portuguese since it would break your typing too much.
What I recommend for Portuguese is to find a different {lhs}.
Best regards,
Tony.
--
"I like work ... I can sit and watch it for hours."
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