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Re: completing-read() on list of vectors
From: |
Nordlöw |
Subject: |
Re: completing-read() on list of vectors |
Date: |
Fri, 12 Sep 2008 04:19:14 -0700 (PDT) |
User-agent: |
G2/1.0 |
On 12 Sep, 12:30, Nordlöw <per.nord...@gmail.com> wrote:
> If I have the following association list (alist):
>
> (defvar c++-stl-algorithms
> '(
> ("adjacent_difference" "<numeric>" "Compute the differences
> between adjacent elements in a range")
> ("adjacent_find" "<algorithm>" "Finds two items that are adjacent
> to eachother")
> ))
>
> how can I modify the use of completing-read() to make the function
>
> (defun read-c++-stl-algorithm ()
> (let* ((sym (thing-at-point 'symbol))
> (cont (completing-read (concat "C++ STL Algorithm (default "
> sym "): ")
> c++-stl-algorithms nil t nil nil
> sym)))
> (list cont)))
>
> to instead work on this list of vectors:
>
> (defvar c++-stl-algorithms
> '(
> ["adjacent_difference" "<numeric>" "Compute the differences
> between adjacent elements in a range"]
> ["adjacent_find" "<algorithm>" "Finds two items that are adjacent
> to eachother"]
> ))
>
> I guess I need to give it an explicit completion function (as second
> argument) to achieve lookups of list of vectors where for example
> "accumulate" is used as key and the return value is the whole list
> element (vector).
>
> Why doesn't completing-read() already work on list of vectors where
> first vector element is a string aswell?
>
> Thanks in advance,
> Nordlöw
It believe it boils down to the search for a function like assoc()
that takes a list of vectors as arguments.
/Nordlöw