Re: Readline completion example?

> * Jean Louis <[email protected]> [2017-11-15 09:20:07 +0300]:
>
> On Tue, Nov 14, 2017 at 04:27:08PM -0500, Sam Steingold wrote:
>> 
>> > * Jean Louis <[email protected]> [2017-11-14 10:31:51 +0300]:
>> >
>> > (defun prompt-read (prompt &optional default)
>> 
>> Please try hg tip facilities described in
>> https://clisp.sourceforge.io/beta/impnotes/terminal.html#readline-extend
>
> That is great, thank you,

You are welcome.

> can be good for the start.

I think you will have to develop it yourself now.

> I see it is to complete the single words nicely,
> yet if there are words with spaces it is not
> working as expected and it is not completing.

This is because of readline limitations:

--8<---------------cut here---------------start------------->8---
(let ((custom:*completion* (lambda (s b e) (print (list s b e)) nil))) (read-line))
foo b <TAB>
("foo b" 4 5) 
--8<---------------cut here---------------end--------------->8---

as you see, when you type "foo b" and hit TAB, readline asks you to
complete the string "b"=(subseq "foo b" 4 5), not "foo b" as you expect.
You are free to ignore the start and end arguments in your completion
function, of course, but this is a fairly special-purpose circumstance.

Feel free to copy and modify clisp/src/complete.lisp:make-completion.


-- 
Sam Steingold (http://sds.podval.org/) on darwin Ns 10.3.1504
http://steingoldpsychology.com http://www.childpsy.net
http://thereligionofpeace.com http://islamexposedonline.com http://no2bds.org
Perl: all stupidities of UNIX in one.

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