Re: characters problems in terminal

[Riccardo Mottola]

Hi
> I could track this down to this obscure code in TerminalParser_Linux.m 
> plenty of explaination, still it wont help to understand what is going 
> on.
>
>     {
>         BOOL commandAsMeta=[TerminalViewKeyboardPrefs commandAsMeta];
>
>         /*
>         Thanks to different keyboard layouts and dumb default key 
> handling
>         in GNUstep, this is a bit complex. There seem to be two main 
> cases:
>
>         a. GNUstep has been correctly configured. Command is really 
> command,
>         alternate is really alternate, and is used as meta. AltGr isn't
>         anything at all. No special options necessary.
>
>         b. GNUstep is using the default settings. Left alt is command, 
> right
>         alt (which might be AltGr) is alternate. Users seem to 
> actually want
>         left alt to be meta, and, if right alt is AltGr, right alt not 
> to be
>         meta. Thus, when command-as-meta option is active, we intercept
>         command presses and treat them as meta, and we ignore alternate.
>
>         */
>
>         if ((commandAsMeta && (mask&NSCommandKeyMask)) ||
>             (!commandAsMeta && (mask&NSAlternateKeyMask)))
>         {
>             NSDebugLLog(@"key",@"  meta");
>             [ts ts_sendCString: "\e"];
>         }
>     }
>
> What my change in back did was to set the AltGr key as the second 
> Alternate key for GNUstep. Something that should be valid when done by 
> a user in the defaults setting. It now turns out that this did break 
> some obscure feature in Terminal. I call this feature obscure as it 
> isn't even documented in the setting panel that not selecting 
> command-as-meta will result in right alt (or in my case AltGr) being 
> used as meta. I would expect that Esc is used as meta, but this may be 
> mapped to double Esc, which is why another meta key seems to be needed.
The more I think about it, the more what Alex wrote is right:
AltGr (but not right alt) -> not meta, not command, nothing
Right-Alt or Left-Alt -> meta
some other key -> command

I may want left-alt to be command, but in that case, if I have AltGr I 
must loose meta, I can only use this setting if I have a proper right-Alt

What do you think about that?

Riccardo