* bug#6679: locate-library does not provide a default when called interactively
@ 2010-07-20 13:53 Kevin Rodgers
2010-07-21 3:14 ` Kevin Rodgers
0 siblings, 1 reply; 4+ messages in thread
From: Kevin Rodgers @ 2010-07-20 13:53 UTC (permalink / raw
To: 6679
See bug 6652 for a use case.
Here's a patch -- should the default be included in the prompt, or
is the user expected to know to try M-n?
2010-07-20 Kevin Rodgers <kevin.d.rodgers@gmail.com>
* subr.el (locate-library): Provide a default LIBRARY
when called interactively.
*** emacs-23.2/lisp/subr.el~ Sat Apr 3 16:26:12 2010
--- emacs-23.2/lisp/subr.el Tue Jul 20 07:38:58 2010
***************
*** 1583,1589 ****
(interactive (list (completing-read "Locate library: "
(apply-partially
'locate-file-completion-table
! load-path (get-load-suffixes)))
nil nil
t))
(let ((file (locate-file library
--- 1583,1594 ----
(interactive (list (completing-read "Locate library: "
(apply-partially
'locate-file-completion-table
! load-path (get-load-suffixes))
! nil nil nil nil
! ;; discard text props from default
! ;; to avoid side-effects (visiting file):
! (substring-no-properties
! (thing-at-point 'filename)))
nil nil
t))
(let ((file (locate-file library
--
Kevin Rodgers
Denver, Colorado, USA
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#6679: locate-library does not provide a default when called interactively
2010-07-20 13:53 bug#6679: locate-library does not provide a default when called interactively Kevin Rodgers
@ 2010-07-21 3:14 ` Kevin Rodgers
2020-03-28 21:59 ` Štěpán Němec
0 siblings, 1 reply; 4+ messages in thread
From: Kevin Rodgers @ 2010-07-21 3:14 UTC (permalink / raw
To: bug-gnu-emacs; +Cc: 6679
Kevin Rodgers wrote:
> See bug 6652 for a use case.
>
> Here's a patch -- should the default be included in the prompt, or
> is the user expected to know to try M-n?
I thought to check what find-library does, and found something rather
more complicated than (completing-read ... (thing-at-point 'filename)):
(interactive
(let* ((dirs (or find-function-source-path load-path))
(suffixes (find-library-suffixes))
(def (if (eq (function-called-at-point) 'require)
;; `function-called-at-point' may return 'require
;; with `point' anywhere on this line. So wrap the
;; `save-excursion' below in a `condition-case' to
;; avoid reporting a scan-error here.
(condition-case nil
(save-excursion
(backward-up-list)
(forward-char)
(forward-sexp 2)
(thing-at-point 'symbol))
(error nil))
(thing-at-point 'symbol))))
(when def
(setq def (and (locate-file-completion-table
dirs suffixes def nil 'lambda)
def)))
(list
(completing-read (if def (format "Library name (default %s): " def)
"Library name: ")
(apply-partially 'locate-file-completion-table
dirs suffixes)
nil nil nil nil def))))
Assuming that complexity is justified, it ought to be factored into a
read-library-name utility that both find-library and locate-library use.
Note that for some reason the DEF argument to completing-read needs to be
(substring-no-properties def), to prevent completing read from visiting the
file itself when point is on a file name hyperlink in a *Help* buffer (with
help-args text property). But I suppose that is a separate bug.
`C-h a -library\'' returns apropos-library and load-library in addition to
find-library and locate-library, but it's not clear to me that they would
benefit from a default.
--
Kevin Rodgers
Denver, Colorado, USA
^ permalink raw reply [flat|nested] 4+ messages in thread
* bug#6679: locate-library does not provide a default when called interactively
2010-07-21 3:14 ` Kevin Rodgers
@ 2020-03-28 21:59 ` Štěpán Němec
2020-04-03 12:01 ` bug#6652: " Eli Zaretskii
0 siblings, 1 reply; 4+ messages in thread
From: Štěpán Němec @ 2020-03-28 21:59 UTC (permalink / raw
To: Kevin Rodgers; +Cc: 6679
[-- Attachment #1: Type: text/plain, Size: 774 bytes --]
tags 6679 + patch
thanks
On Tue, 20 Jul 2010 21:14:09 -0600
Kevin Rodgers wrote:
> Assuming that complexity is justified, it ought to be factored into a
> read-library-name utility that both find-library and locate-library use.
The first part has since happened (`read-library-name'), all that is
needed is the latter. Patch attached.
> `C-h a -library\'' returns apropos-library and load-library in addition to
> find-library and locate-library, but it's not clear to me that they would
> benefit from a default.
The patch also handles `load-library'. The set of arguments/completions
expected/provided by `apropos-library' is slightly different and
requires other validation, so `read-library-name' wouldn't really help
there.
--
Štěpán
[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #2: 0001-load-library-locate-library-Use-read-library-name.patch --]
[-- Type: text/x-patch, Size: 2573 bytes --]
>From 14acebb7a31da36423c8601033fe209efc95d1da Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C5=A0t=C4=9Bp=C3=A1n=20N=C4=9Bmec?= <stepnem@gmail.com>
Date: Sat, 28 Mar 2020 22:16:28 +0100
Subject: [PATCH] load-library, locate-library: Use read-library-name
* lisp/emacs-lisp/find-func.el (read-library-name): Add autoload
cookie.
* lisp/files.el (load-library)
* lisp/subr.el (locate-library): Use 'read-library-name' when called
interactively. (bug#6652 bug#6679)
---
lisp/emacs-lisp/find-func.el | 1 +
lisp/files.el | 7 +------
lisp/subr.el | 7 +------
3 files changed, 3 insertions(+), 12 deletions(-)
diff --git a/lisp/emacs-lisp/find-func.el b/lisp/emacs-lisp/find-func.el
index 167ead3ce0..e35db56550 100644
--- a/lisp/emacs-lisp/find-func.el
+++ b/lisp/emacs-lisp/find-func.el
@@ -279,6 +279,7 @@ find-library
(switch-to-buffer (find-file-noselect (find-library-name library)))
(run-hooks 'find-function-after-hook)))
+;;;###autoload
(defun read-library-name ()
"Read and return a library name, defaulting to the one near point.
diff --git a/lisp/files.el b/lisp/files.el
index 8ce0187f5b..5249b150c5 100644
--- a/lisp/files.el
+++ b/lisp/files.el
@@ -1101,12 +1101,7 @@ load-library
See Info node `(emacs)Lisp Libraries' for more details.
See `load-file' for a different interface to `load'."
- (interactive
- (let (completion-ignored-extensions)
- (list (completing-read "Load library: "
- (apply-partially 'locate-file-completion-table
- load-path
- (get-load-suffixes))))))
+ (interactive (list (read-library-name)))
(load library))
(defun file-remote-p (file &optional identification connected)
diff --git a/lisp/subr.el b/lisp/subr.el
index 70f33ee5bd..70a74fba66 100644
--- a/lisp/subr.el
+++ b/lisp/subr.el
@@ -2301,12 +2301,7 @@ locate-library
When called from a program, the file name is normally returned as a
string. When run interactively, the argument INTERACTIVE-CALL is t,
and the file name is displayed in the echo area."
- (interactive (list (completing-read "Locate library: "
- (apply-partially
- 'locate-file-completion-table
- load-path (get-load-suffixes)))
- nil nil
- t))
+ (interactive (list (read-library-name) nil nil t))
(let ((file (locate-file library
(or path load-path)
(append (unless nosuffix (get-load-suffixes))
--
2.26.0
^ permalink raw reply related [flat|nested] 4+ messages in thread
* bug#6652: bug#6679: locate-library does not provide a default when called interactively
2020-03-28 21:59 ` Štěpán Němec
@ 2020-04-03 12:01 ` Eli Zaretskii
0 siblings, 0 replies; 4+ messages in thread
From: Eli Zaretskii @ 2020-04-03 12:01 UTC (permalink / raw
To: Štěpán Němec; +Cc: 6679-done, kevin.d.rodgers, 6652-done
> From: Štěpán Němec
> <stepnem@gmail.com>
> Date: Sat, 28 Mar 2020 22:59:44 +0100
> Cc: 6679@debbugs.gnu.org
>
> On Tue, 20 Jul 2010 21:14:09 -0600
> Kevin Rodgers wrote:
>
> > Assuming that complexity is justified, it ought to be factored into a
> > read-library-name utility that both find-library and locate-library use.
>
> The first part has since happened (`read-library-name'), all that is
> needed is the latter. Patch attached.
>
> > `C-h a -library\'' returns apropos-library and load-library in addition to
> > find-library and locate-library, but it's not clear to me that they would
> > benefit from a default.
>
> The patch also handles `load-library'. The set of arguments/completions
> expected/provided by `apropos-library' is slightly different and
> requires other validation, so `read-library-name' wouldn't really help
> there.
Thanks, pushed to the master branch.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2020-04-03 12:01 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2010-07-20 13:53 bug#6679: locate-library does not provide a default when called interactively Kevin Rodgers
2010-07-21 3:14 ` Kevin Rodgers
2020-03-28 21:59 ` Štěpán Němec
2020-04-03 12:01 ` bug#6652: " Eli Zaretskii
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