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From: "Mattias Engdegård" <mattiase@acm.org>
To: Juri Linkov <juri@linkov.net>
Cc: Emacs developers <emacs-devel@gnu.org>
Subject: Re: Emacs i18n
Date: Thu, 28 Mar 2019 12:03:26 +0100	[thread overview]
Message-ID: <9B85B6CD-13C2-4E38-8A7A-19FC76CBE8E1@acm.org> (raw)
In-Reply-To: <87d0mcui68.fsf@mail.linkov.net>

27 mars 2019 kl. 22.22 skrev Juri Linkov <juri@linkov.net>:
> 
> I tried ‘regexp-opt’ and it generates a ready-to-use regexp:
> 
>  (replace-regexp-in-string
>   "%d" "\\\\([0-9]+\\\\)"
>   (regexp-opt '("finished with %d match found"
>                 "finished with %d matches found"
>                 "finished with no matches found")))
> 
>  ⇒ "\\(?:finished with \\(?:\\(?:\\([0-9]+\\) match\\(?:es\\)?\\|no matches\\) found\\)\\)"

Well now. There is no guarantee that regexp-opt won't split the %d. Format strings must be parsed left-to-right for correctness¹. I'm still skeptical, but if you really want to give this a try, then first segment the format string:

"Today %d little piggies built %03o houses and said '%s'."
"Today %d little piggy built %o house and said '%s'."
=>
("Today " ?d " little piggies built " ?o " houses and said '" ?s "'.")
("Today " ?d " little piggy built " ?o " house and said '" ?s "'.")

leaving the format placeholders as atomic entities (here shown as characters, but you may need more information there).
Then run your fav diff algo on the result. Most important to performance is prefix merging; anything else is just to make the regexp smaller.

Here, prefix and suffix merging would leave you with (still in abstract form)

("Today " ?d " little pigg"
 (("ies built " ?o " houses")
  ("y built " ?o " house"))
 " and said '" ?s "'.")

From there you can either recursively try to find more common subsequences, or call it a day and render it into a regexp:

"Today -?[0-9]+ little pigg\\(?:ies built -?[0-7]+ houses\\|y built -?[0-7]+ house\\) and said '\\(?:.\\|\n\\)*'."

All this will need to be done at run-time, since it is run on translated strings.

¹ To match format parameters, try something like
  (rx "%"
      (opt (1+ digit) "$")
      (0+ digit)
      (opt "." (0+ digit))
      (any "%sdioxXefgcS"))




  reply	other threads:[~2019-03-28 11:03 UTC|newest]

Thread overview: 253+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-02-18  0:35 bug#34520: delete-matching-lines should report how many lines it deleted 積丹尼 Dan Jacobson
2019-02-18  6:06 ` Marcin Borkowski
2019-02-27 21:36 ` Juri Linkov
2019-02-28  3:34   ` Eli Zaretskii
2019-02-28 21:33     ` Juri Linkov
2019-03-01  3:59       ` Richard Stallman
2019-03-02 20:55         ` Juri Linkov
2019-03-02 23:39           ` Drew Adams
2019-03-03  3:04           ` Richard Stallman
2019-03-03 15:31             ` Emacs i18n (was: bug#34520: delete-matching-lines should report how many lines it deleted) Eli Zaretskii
2019-03-03 20:57               ` Emacs i18n Juri Linkov
2019-03-04  1:46                 ` Jean-Christophe Helary
2019-03-06  9:38                   ` Elias Mårtenson
2019-03-06 11:23                     ` Jean-Christophe Helary
2019-03-21 20:33                   ` Clément Pit-Claudel
2019-03-21 20:50                     ` Eli Zaretskii
2019-03-21 21:03                       ` Clément Pit-Claudel
2019-03-21 21:21                         ` Jean-Christophe Helary
2019-03-21 21:34                           ` Clément Pit-Claudel
2019-03-21 21:56                             ` Jean-Christophe Helary
2019-03-21 22:05                               ` Clément Pit-Claudel
2019-03-21 23:46                                 ` Jean-Christophe Helary
2019-03-22  8:22                         ` Eli Zaretskii
2019-03-22 16:10                           ` Clément Pit-Claudel
2019-03-22 16:35                             ` Eli Zaretskii
2019-03-22 17:16                               ` Clément Pit-Claudel
2019-03-22 17:35                                 ` Eli Zaretskii
2019-03-22 23:17                                   ` Clément Pit-Claudel
2019-03-21 21:17                     ` Jean-Christophe Helary
2019-03-21 21:59                     ` Juri Linkov
2019-03-22  8:22                       ` Eli Zaretskii
2019-03-23 21:50                         ` Juri Linkov
2019-03-24  3:36                           ` Eli Zaretskii
2019-03-24 21:55                             ` Juri Linkov
2019-03-24 23:31                               ` Jean-Christophe Helary
2019-03-25 21:32                                 ` Juri Linkov
2019-03-25 22:31                                   ` Paul Eggert
2019-03-26 16:11                                     ` Eli Zaretskii
2019-03-26 16:22                                       ` Stefan Monnier
2019-03-26 16:55                                         ` Eli Zaretskii
2019-03-26 22:35                                       ` Paul Eggert
2019-03-27  3:43                                         ` Eli Zaretskii
2019-03-28 14:56                                           ` Clément Pit-Claudel
2019-03-28 15:52                                             ` Eli Zaretskii
2019-03-27  2:34                                       ` Jean-Christophe Helary
2019-03-26 23:16                                     ` Juri Linkov
2019-03-27  1:35                                       ` Paul Eggert
2019-04-24  6:39                                       ` Jean-Christophe Helary
2019-04-24 20:18                                         ` Juri Linkov
2019-03-25  3:35                               ` Eli Zaretskii
2019-03-25  9:04                                 ` Jean-Christophe Helary
2019-03-25 21:02                                 ` Juri Linkov
2019-03-26  3:27                                   ` Eli Zaretskii
2019-03-27 23:06                                     ` Richard Stallman
2019-03-25 10:52                               ` Mattias Engdegård
2019-03-25 15:37                                 ` Eli Zaretskii
2019-03-25 21:11                                 ` Juri Linkov
2019-03-25 22:05                                   ` Mattias Engdegård
2019-03-27 21:22                                     ` Juri Linkov
2019-03-28 11:03                                       ` Mattias Engdegård [this message]
2019-03-04  3:27               ` Emacs i18n (was: bug#34520: delete-matching-lines should report how many lines it deleted) Richard Stallman
2019-03-04 16:36                 ` Eli Zaretskii
2019-03-04 18:37                   ` Paul Eggert
2019-03-04 19:07                     ` Eli Zaretskii
2019-03-05  2:09                       ` Paul Eggert
2019-03-05 21:58                         ` Emacs i18n Juri Linkov
2019-03-06  2:16                           ` Richard Stallman
2019-03-06 18:15                             ` Eli Zaretskii
2019-03-06 19:47                               ` Paul Eggert
2019-03-06 20:19                                 ` Eli Zaretskii
2019-03-07  1:52                                   ` Paul Eggert
2019-03-07  3:37                                     ` Eli Zaretskii
2019-03-08  4:07                                       ` Richard Stallman
2019-03-08  8:16                                         ` Eli Zaretskii
2019-03-08  4:07                                 ` Richard Stallman
2019-03-08  4:33                                   ` Elias Mårtenson
2019-03-08  8:22                                     ` Eli Zaretskii
2019-03-09  3:11                                     ` Richard Stallman
2019-03-09  7:54                                       ` Paul Eggert
2019-03-09 10:30                                         ` Eli Zaretskii
2019-03-10  3:05                                         ` Richard Stallman
2019-03-10  6:07                                           ` Paul Eggert
2019-03-11  1:20                                             ` Richard Stallman
2019-03-11  3:52                                               ` Paul Eggert
2019-03-12  3:31                                                 ` Richard Stallman
2019-03-12  3:31                                                 ` Richard Stallman
2019-03-10  8:45                                           ` Yuri Khan
2019-03-10  3:05                                         ` Richard Stallman
2019-03-10  6:14                                           ` Paul Eggert
2019-03-10  3:05                                         ` Richard Stallman
2019-03-07  3:42                               ` Richard Stallman
2019-03-07 14:46                                 ` Eli Zaretskii
2019-03-07 17:19                                   ` Paul Eggert
2019-03-07 18:24                                     ` martin rudalics
2019-03-07 18:44                                       ` Paul Eggert
2019-03-07 20:22                                     ` Eli Zaretskii
2019-03-07 22:25                                       ` Paul Eggert
2019-03-08  7:29                                         ` Eli Zaretskii
2019-03-08  4:18                                       ` Richard Stallman
2019-03-08  4:11                                   ` Richard Stallman
2019-03-06 17:30                           ` Eli Zaretskii
2019-03-06 18:09                           ` Eli Zaretskii
2019-03-06 19:39                             ` Paul Eggert
2019-03-06 19:49                               ` Eli Zaretskii
2019-03-07  1:33                                 ` Paul Eggert
2019-03-07  3:30                                   ` Eli Zaretskii
2019-03-07 16:06                                     ` Paul Eggert
2019-03-07  4:35                                   ` Jean-Christophe Helary
2019-03-07 16:04                                     ` Paul Eggert
2019-03-08  4:09                                     ` Richard Stallman
2019-03-11 21:48                                     ` Juri Linkov
2019-03-11 22:51                                       ` Paul Eggert
2019-03-12 21:45                                         ` Juri Linkov
2019-03-17 21:23                                           ` Juri Linkov
2019-03-18 21:20                                             ` Juri Linkov
2019-03-18 21:55                                               ` Paul Eggert
2019-03-19 20:40                                                 ` Juri Linkov
2019-03-11 23:59                                       ` Jean-Christophe Helary
2019-03-12  9:16                                       ` Michael Albinus
2019-03-06 19:47                             ` Paul Eggert
2019-03-06 20:21                               ` Eli Zaretskii
2019-03-07  1:43                                 ` Paul Eggert
2019-03-07  3:31                                   ` Eli Zaretskii
2019-03-07  3:44                             ` Richard Stallman
2019-03-07 14:48                               ` Eli Zaretskii
2019-03-07 22:29                                 ` Juri Linkov
2019-03-08  1:48                                   ` Jean-Christophe Helary
2019-03-08  8:08                                     ` Eli Zaretskii
2019-03-08 15:11                                       ` Jean-Christophe Helary
2019-03-08 20:11                                         ` Eli Zaretskii
2019-03-09  2:44                                           ` Jean-Christophe Helary
2019-03-09  6:40                                             ` Eli Zaretskii
2019-03-09  8:37                                               ` Michael Albinus
2019-03-09 10:45                                                 ` Eli Zaretskii
2019-03-09 11:27                                                   ` Michael Albinus
2019-03-09 17:23                                                     ` Eli Zaretskii
2019-03-09 19:55                                                       ` Paul Eggert
2019-03-09 20:07                                                         ` Eli Zaretskii
2019-03-09 20:47                                                           ` Paul Eggert
2019-03-09 20:04                                                       ` Michael Albinus
2019-03-09 20:14                                                         ` Eli Zaretskii
2019-03-09 19:22                                                     ` Paul Eggert
2019-03-09 19:39                                                       ` Eli Zaretskii
2019-03-09 20:48                                                         ` Paul Eggert
2019-03-09 20:08                                                       ` Michael Albinus
2019-03-10  3:09                                                       ` Richard Stallman
2019-03-10 13:38                                                         ` Eli Zaretskii
2019-03-08  7:37                                   ` Eli Zaretskii
2019-03-09  3:12                                     ` Richard Stallman
2019-03-08  4:11                                 ` Richard Stallman
2019-03-06  2:09                         ` Emacs i18n (was: bug#34520: delete-matching-lines should report how many lines it deleted) Richard Stallman
2019-03-05  2:49                       ` Richard Stallman
2019-03-05  3:31                         ` Eli Zaretskii
  -- strict thread matches above, loose matches on Subject: below --
2019-03-20 11:59 Emacs i18n Bruno Haible
2019-03-20 16:36 ` Paul Eggert
2019-03-20 21:32 ` Juri Linkov
2019-03-21  2:14   ` Richard Stallman
     [not found]     ` <E1h6nE3-0000bt-SW-iW7gFb+/I3LZHJUXO5efmti2O/JbrIOy@public.gmane.org>
2019-03-21 21:45       ` Juri Linkov
2019-03-23  2:28         ` Richard Stallman
2019-03-23  7:55           ` Yuri Khan
     [not found]             ` <CAP_d_8WjQwAtcWCfkjXHtc-dqYyBfnaP0+9L8KK6eCp4r_ZsPQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2019-03-23 17:50               ` Ineiev
2019-03-24  1:43               ` Richard Stallman
     [not found]           ` <E1h7WOF-0006T8-Be-iW7gFb+/I3LZHJUXO5efmti2O/JbrIOy@public.gmane.org>
2019-03-23 21:48             ` Juri Linkov
2019-03-24  1:47               ` Richard Stallman
2019-03-22 20:50       ` Chusslove Illich
     [not found]   ` <87h8bx5ijn.fsf-i9wRM+HIrmlRTR8OWt4JRw@public.gmane.org>
2019-03-21  2:55     ` Bruno Haible
2019-03-21  2:14 ` Richard Stallman
2019-03-22  1:26   ` Bruno Haible
2019-03-23  2:29     ` Richard Stallman
2021-07-17  9:27 Narendra Joshi
2021-07-17  9:36 ` Thibaut Verron
2021-07-17  9:53 ` Eli Zaretskii
2021-07-17 13:32   ` mrf
2021-07-17 14:01     ` Eli Zaretskii
2021-07-17 20:00       ` Alexandre Garreau
2021-07-17 20:57         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-17 22:06           ` Jean-Christophe Helary
2021-07-17 22:55             ` Alexandre Garreau
2021-07-18  2:26               ` Jean-Christophe Helary
2021-07-19  1:53                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-18  6:47               ` Eli Zaretskii
2021-07-19  1:52               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-19  1:51             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-19  5:28               ` Thibaut Verron
2021-07-21  5:24                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21  6:32                   ` Alexandre Garreau
2021-07-21  9:45                     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 10:16                       ` Christopher Dimech
2021-07-21 12:08                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 12:36                           ` Alexandre Garreau
2021-07-21  8:28                   ` Christopher Dimech
2021-07-21  8:39                     ` tomas
2021-07-21  9:18                       ` Christopher Dimech
2021-07-21 10:52                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 11:53                           ` Christopher Dimech
2021-07-21 12:56                     ` Jean Louis
2021-07-21 13:23                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 13:39                         ` Thibaut Verron
2021-07-21 14:05                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 14:47                             ` Thibaut Verron
2021-07-21 17:55                               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 18:15                                 ` Thibaut Verron
2021-07-21 18:26                                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 18:27                                   ` Christopher Dimech
2021-07-21 18:42                                     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 19:06                                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 19:40                                     ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-07-21 20:49                                       ` Christopher Dimech
2021-07-21 21:44                                         ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-07-21 21:58                                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 22:55                                             ` Stefan Monnier via Users list for the GNU Emacs text editor
2021-07-22  7:05                                               ` Christopher Dimech
2021-07-22  8:11                                                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  8:16                                                   ` tomas
2021-07-22  9:24                                                   ` Christopher Dimech
2021-07-22  5:49                                           ` Eli Zaretskii
2021-07-22 10:04                                           ` Christopher Dimech
2021-07-21 21:57                                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  7:09                                         ` tomas
2021-07-22  8:17                                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  9:18                                             ` lisa-asket
2021-07-21 14:22                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 17:02                       ` Christopher Dimech
2021-07-21 17:49                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-19 11:43               ` Alexandre Garreau
2021-07-21  6:11                 ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21  7:02                   ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21  8:43                     ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 10:04                       ` Christopher Dimech
2021-07-21 10:14                         ` tomas
2021-07-21 10:34                         ` Alexandre Garreau
2021-07-21 11:16                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 13:01                       ` Jean Louis
2021-07-21 13:51                         ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-22  8:15                         ` Alexandre Garreau
2021-07-22 17:32                       ` Yuri Khan
2021-07-22 18:02                         ` Alexandre Garreau
2021-07-21  7:31                   ` Alexandre Garreau
2021-07-21  7:47                     ` Thibaut Verron
2021-07-21  9:59                       ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 10:28                         ` Christopher Dimech
2021-07-21 11:49                           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-21 12:44                             ` Christopher Dimech
2021-07-21 13:20                               ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-23  6:03           ` Jean Louis
2021-07-23  9:22             ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-27 20:52               ` Christopher Dimech
2021-07-17 22:03         ` Jean-Christophe Helary
2021-07-19  1:46           ` Emanuel Berg via Users list for the GNU Emacs text editor
2021-07-18  6:28         ` Eli Zaretskii
2021-07-17 20:06   ` Alexandre Garreau
2021-07-17 22:03     ` Jean-Christophe Helary
2021-07-18  6:30     ` Eli Zaretskii

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