Intercepting input in comint

Intercepting input in comint

[Yuri D'Elia]

Hi everyone,

In a comint buffer, I'd like to intercept certain kinds of inputs from
the user.

For certain kinds of patterns, I'd like to side-step comint and call a
function instead (and avoid the command to be sent to the inferior process).

A logical place seems to be comint-input-filter-functions, except I
cannot prevent the command to be sent to the process there.

Do I have to override comint-input-sender?
Any other advice?

Re: Intercepting input in comint

[Elias Mårtenson]

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You can do this by setting comint-input-sender to a function that can
intercept the entered commands.

I'm doing exactly this in gnu-apl-mode:
https://github.com/lokedhs/gnu-apl-mode/blob/a4fdcede138a4777b1fa3780574ef931d155f464/gnu-apl-interactive.el#L219

Regards,
Elias

On 1 December 2015 at 21:47, Yuri D'Elia <wavexx@thregr.org> wrote:

> Hi everyone,
>
> In a comint buffer, I'd like to intercept certain kinds of inputs from
> the user.
>
> For certain kinds of patterns, I'd like to side-step comint and call a
> function instead (and avoid the command to be sent to the inferior
> process).
>
> A logical place seems to be comint-input-filter-functions, except I
> cannot prevent the command to be sent to the process there.
>
> Do I have to override comint-input-sender?
> Any other advice?
>
>
>

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Re: Intercepting input in comint

[Yuri D'Elia]

On 03/12/15 14:16, Elias Mårtenson wrote:
> You can do this by setting comint-input-sender to a function that can
> intercept the entered commands.
> 
> I'm doing exactly this in
> gnu-apl-mode: https://github.com/lokedhs/gnu-apl-mode/blob/a4fdcede138a4777b1fa3780574ef931d155f464/gnu-apl-interactive.el#L219

Thanks for the example.

I feared to miss some other higher-level entry points I could use.

Re: Intercepting input in comint

[Yuri D'Elia]

On 03/12/15 14:16, Elias Mårtenson wrote:
> You can do this by setting comint-input-sender to a function that can
> intercept the entered commands.
> 
> I'm doing exactly this in
> gnu-apl-mode: https://github.com/lokedhs/gnu-apl-mode/blob/a4fdcede138a4777b1fa3780574ef931d155f464/gnu-apl-interactive.el#L219

Thanks for the example. Very helpful.

I feared to miss some other higher-level entry points I could use.

Re: Intercepting input in comint

[Yuri D'Elia]

On 03/12/15 14:16, Elias Mårtenson wrote:
> You can do this by setting comint-input-sender to a function that can
> intercept the entered commands.
> 
> I'm doing exactly this in
> gnu-apl-mode: https://github.com/lokedhs/gnu-apl-mode/blob/a4fdcede138a4777b1fa3780574ef931d155f464/gnu-apl-interactive.el#L219

Thanks for the example. Very helpful.

I feared to miss some other higher-level entry points I could use.