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Re: CC mode loads CL
From: |
Luc Teirlinck |
Subject: |
Re: CC mode loads CL |
Date: |
Sat, 17 Jan 2004 21:55:29 -0600 (CST) |
Richard Stallman wrote:
If the existence of multiple equivalent functions bothers people,
I would rather install a function delq-duplicates that compares
using eq. That fits the spirit of Emacs Lisp.
I have no strong personal opinions on this. Just trying to float some
ideas around:
I personally believe that using `equal' as test is more useful than
`eq'. All current uses I am aware of in the Emacs code use `equal' as
test. I see two possibilities:
1. Use a function of one argument, the list, and `equal' as test.
2. Use a function of two arguments, one required, the list, and one
optional, the test, defaulting to `equal'.
Either way, we could use a name such as, say, `delete-repeats' to make
clear that the function is not identical with the CL function
`delete-duplicates', and avoid a name clash.
If we go for (1), then maybe we could just rename
`mm-delete-duplicates', rewrite its docstring, and move it from
mm-util.el into subr.el or some similar place:
(defun mm-delete-duplicates (list)
"Simple substitute for CL `delete-duplicates', testing with `equal'."
(let (result head)
(while list
(setq head (car list))
(setq list (delete head list))
(setq result (cons head result)))
(nreverse result)))
Some people might stylistically prefer:
(push head result) over: (setq result (cons head result)),
and maybe we should make that change, but that is just an unimportant
detail.
Even (2) should produce a function whose code is substantially simpler
and more transparent than `cl-delete-duplicates'.
Sincerely,
Luc.
- Re: CC mode loads CL, (continued)
- Re: CC mode loads CL, Luc Teirlinck, 2004/01/12
- Re: CC mode loads CL, Dave Love, 2004/01/15
- Re: CC mode loads CL, Luc Teirlinck, 2004/01/11
- Re: CC mode loads CL, Luc Teirlinck, 2004/01/11
- Re: CC mode loads CL, Martin Stjernholm, 2004/01/15
- Re: CC mode loads CL, Luc Teirlinck, 2004/01/15
- Re: CC mode loads CL, Miles Bader, 2004/01/15
- Re: CC mode loads CL, Martin Stjernholm, 2004/01/17
- Re: CC mode loads CL, Miles Bader, 2004/01/17
- Re: CC mode loads CL, Richard Stallman, 2004/01/17
- Re: CC mode loads CL,
Luc Teirlinck <=
- Re: CC mode loads CL, Eli Zaretskii, 2004/01/18
- Re: CC mode loads CL, Richard Stallman, 2004/01/18
- Re: CC mode loads CL, Martin Stjernholm, 2004/01/18
- Re: CC mode loads CL, Richard Stallman, 2004/01/19
- Re: CC mode loads CL, Luc Teirlinck, 2004/01/18
- Re: CC mode loads CL, Luc Teirlinck, 2004/01/18
- Re: CC mode loads CL, Richard Stallman, 2004/01/19
- Re: CC mode loads CL, Luc Teirlinck, 2004/01/19
- Re: CC mode loads CL, Dave Love, 2004/01/16
- Re: CC mode loads CL, Richard Stallman, 2004/01/12