Re: Building a database interface in Emacs

[Lennart Borgman <lennart.borgman.073@student.lu.se>]

Mathias Dahl wrote:
> Mathias Dahl <brakjoller@gmail.com> writes:
>
>   
>> I can attach a process filter function to the process but I don't
>> understand how to "pause" my main code until my filter function has
>> been called. Well, I came up with a hack, that seems really ugly:
>>
>> (defvar foo-output nil)
>>
>> (defun foo ()
>>  (process-send-string process "blabla")
>>  (setq foo-output nil)
>>  (while (not foo-output)
>>    (sleep-for 0 10))
>>  (use-result))
>>
>> (defun foo-filter (proc string)
>>  (setq foo-output string))
>>     
>
> And I just discovered that even the above won't work because I receive
> data in chunks. I guess the question I am asking is: how to I know
> when there is no more output? Maybe I need to look for signs in the
> output itself?
>   

Perhaps these helps?

   (info "(elisp) Filter Functions")
   (info "(elisp) Accepting Output")
   (info "(elisp) Sentinels")