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* bug#27056: 25.2; goto-line doesn't default to current line when used interactively when the cursor isn't over a number
@ 2017-05-24 11:19 kwc3iywb
  2017-05-24 18:03 ` Glenn Morris
  2017-05-27 13:13 ` Eli Zaretskii
  0 siblings, 2 replies; 11+ messages in thread
From: kwc3iywb @ 2017-05-24 11:19 UTC (permalink / raw)
  To: 27056


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In GNU Emacs 25.2.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.22.10)
 of 2017-04-22 built on juergen
Windowing system distributor 'The X.Org Foundation', version 11.0.11903000
Configured using:
 'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
 --localstatedir=/var --with-x-toolkit=gtk3 --with-xft --with-modules
 'CFLAGS=-march=x86-64 -mtune=generic -O2 -pipe
 -fstack-protector-strong' CPPFLAGS=-D_FORTIFY_SOURCE=2
 LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro'

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  value of $LANG: C
  locale-coding-system: nil

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  blink-cursor-mode: t
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  auto-encryption-mode: t
  auto-compression-mode: t
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  transient-mark-mode: t

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Memory information:
((conses 16 86260 8956)
 (symbols 48 19773 0)
 (miscs 40 46 172)
 (strings 32 14306 4139)
 (string-bytes 1 409031)
 (vectors 16 11746)
 (vector-slots 8 430626 3614)
 (floats 8 166 79)
 (intervals 56 222 112)
 (buffers 976 18))

When I press M-x goto-line, it asks me for a line number.  There used to
be a default line number, which is the current line number before
a5dcc929862f6727c71db5e45d8750f8c322c53b.  It looks like he forgot to
remove the empty elements when calling `read-from-minibuffer' from
`read-number'.  I've included the patch I used to fix this problem.
It's not obvious that `read-number' should be responsible for removing
nil in DEFAULT, it's not documented, and I didn't find any code besides
`goto-line' that relies on this behavior after grepping all the lisp
files in emacs' source, so I rewrote `read-number', and made `goto-line'
responsible for removing nils.

By the way, when looking for uses of `read-number', I found in
lisp/tar-mode.el, in lines 1023 and 1051, conversion from integer to
string, which seemed unnecessary to me.

>(read-number
> "New UID number: "
> (format "%s" (tar-header-uid descriptor)))

>(read-number
> "New GID number: "
> (format "%s" (tar-header-gid descriptor)))

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^ permalink raw reply	[flat|nested] 11+ messages in thread

end of thread, other threads:[~2017-05-28 15:03 UTC | newest]

Thread overview: 11+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2017-05-24 11:19 bug#27056: 25.2; goto-line doesn't default to current line when used interactively when the cursor isn't over a number kwc3iywb
2017-05-24 18:03 ` Glenn Morris
2017-05-25  2:29   ` kwc3iywb
2017-05-25  8:52   ` kwc3iywb
2017-05-25  9:41   ` kwc3iywb
2017-05-25 10:21   ` kwc3iywb
2017-05-27  2:38   ` kwc3iywb
2017-05-27 13:13 ` Eli Zaretskii
2017-05-28  8:11   ` kwc3iywb
2017-05-28  8:18   ` kwc3iywb
2017-05-28 15:03     ` Eli Zaretskii

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