Subject: bug#12777: 24.2; Please support '$' in format specifications

From: [email-masked]
Date: Tue, 13 Jun 2017 20:45:53 -0400

tags 12777 fixed
close 12777 26.1
quit

Ivan Vilata i Balaguer <[email-masked]> writes:

> Hello!  It'd be nice if the "format" function allowed "%m$"
> specifications (as long supported by glibc) so that arguments can be
> formatted in a different order than they were provided to the function.
>
> - It's very useful for translating format strings, e.g:
>
>       (format "%d %s-%s" 2 "1KiB" "blocks") -> "2 1KiB-blocks"
>       v    some string translation...
>       (format "%1$d %3$s de %2$d" 2 "1KiB" "bloques") -> "2 bloques de 1KiB"

This is now implemented in master.

http://lists.gnu.org/archive/html/emacs-devel/2017-05/msg00901.html
http://lists.gnu.org/archive/html/emacs-devel/2017-06/msg00000.html

[1: 0dd1bbb0bb]: 2017-06-02 00:22:13 +0200
  Implement field numbers in format strings
  http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=0dd1bbb0bb228acab21b8e16f2f2a0b5a17b19ab

[2: 5324710841]: 2017-06-02 00:25:48 +0200
  Minor improvements to format field numbers
  http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=53247108411a1e9d1aa5352c231fa049f3f918aa

[3: 8de2581a64]: 2017-06-01 16:06:38 -0700
  Limit format fields to more POSIX-like spec
  http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=8de2581a64dac3785fc3877f7cd87c4164fd2936

[4: 0147cdd4d9]: 2017-06-03 01:31:52 -0700
  Document uniqueness limitation of ‘format’
  http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=0147cdd4d96f1eaeef720ee0b89bddd27eaf4233

[5: 7d413cb4da]: 2017-06-03 11:19:02 +0200
  Fix a bug when using format field numbers
  http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=7d413cb4da89e0bdd70068e6a5e1dbc57190ed10

[6: d5fcf9e458]: 2017-06-04 08:42:53 -0700
  Tune ‘format’ after recent fix
  http://git.savannah.gnu.org/cgit/emacs.git/commit/?id=d5fcf9e458053af1c50f0d4dad4c59db056790e5