Re: [Fish-users] still problems with control-y

Michael Lachmann Sat, 03 Apr 2010 02:29:17 -0700

OK, I found some kind of solution for control-y.

in reader_init() in reader.c, I added the line:


        shell_modes.c_cc[VDSUSP]=_POSIX_VDISABLE ;

This now allows control-y to be used. This line will work if termios.h  
is included. I'm not sure why I had this problem, so I don't know if  
this is THE correct solution.

Michael

---
void reader_init()
{

        tcgetattr(0,&shell_modes);        /* get the current terminal modes */
        memcpy( &saved_modes,
                        &shell_modes,
                        sizeof(saved_modes));     /* save a copy so we can 
reset the  
terminal later */
        
        shell_modes.c_lflag &= ~ICANON;   /* turn off canonical mode */
        shell_modes.c_lflag &= ~ECHO;     /* turn off echo mode */
     shell_modes.c_cc[VMIN]=1;
     shell_modes.c_cc[VTIME]=0;
        shell_modes.c_cc[VDSUSP]=_POSIX_VDISABLE ; /* to get control-y to  
work */

        al_init( &current_filename);
}
---

On 3 Apr 2010, at 10:37, Michael Lachmann wrote:

> I'm still trying to solve my problems with control-y.
> The problem is that control-y is not recognized. (Does anyone else
> have this problem?)
> Some more debugging showed me what fish is doing.
> while it is waiting for a key, it is on the line:
>    res = select( fd_max, &fd, 0, 0, 0 );
> in input_common.c in readb() . When select() exits, input should be
> available, and fish proceeds to
> read_blocked() in common.c, where it calls read().
>
> At least that is what is supposed to happen. For some reason, when I
> press control-y on my machine, select exits, but the next call to
> read() has no data available, so it blocks.
>
> I'm not sure why this happens, I'm actually not sure how fish does all
> its magic. It probably has to do with terminfo, and which keys are
> initialized in input_terminfo_init()...
>
> control-y seems to produce suspend in a program. When ctrl-y is
> entered, then the next time read() exits, a normal program suspends.
>
> Maybe I have the wrong ncurses installed? I have 5.4.... I installed
> fish initially through fink, though now I compile it.
>
> I don't know if this is a related problem, or not, but I also can't
> use esc-key for any key (usually, that would be esc-d...). I can use
> alt-key, though
>
> Michael
>
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