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bug#24439: ispell.el; cutom setting `ispell-library-directory'; patch


From: Eli Zaretskii
Subject: bug#24439: ispell.el; cutom setting `ispell-library-directory'; patch
Date: Fri, 07 Oct 2016 11:58:00 +0300

Agustin, could you please take a look at the proposed patch?  TIA.

> From: Laimonas Vėbra <laimonas.vebra@yahoo.com>
> Cc: 24439@debbugs.gnu.org
> Date: Thu, 6 Oct 2016 13:33:08 +0300
> 
> Eli Zaretskii wrote:
> 
> >> Sorry, that is not true (mistakenly thought, that fopen won't work with
> >> windows paths). Then i should really rebuild ispell with LIBDIR set to
> >> native path and it will work with Emacs.
> >
> > I think you don't even need that.  You need to set ISPELL_DICTDIR in
> > the environment to point to that directory.
> >
> > (The reason I didn't suggest this earlier is that I didn't know Cygwin
> > can fopen Windows-style absolute file names.)
> 
> Actually that won't work with current ispell.el, because LIBRARYVAR is 
> completely ignored and dictionaries searched only in LIBDIR (though it 
> can be overridden by LIBRARYVAR).
> 
> Fixed this and other (-d with an absolute path) issues in attached patch.
> 
> Below is a explanatory test:
> 
> (require 'ispell)
> ispell
> 
> ;; cygwin ispell reports its LIBDIR as
> (ispell-check-version)
> "/usr/local/lib"
> 
> ;; and it's not a correct/existing windows path
> (file-exists-p "/usr/local/lib")
> nil
> 
> (shell-command-to-string "cygpath -w /usr/local/lib")
> "C:\\cygwin64\\usr\\local\\lib
> "
> 
> ;; so ispell.el still can not see valid/installed dictionaries
> (shell-command-to-string "ls -l /usr/local/lib")
> "total 1126
> lrwxrwxrwx 1 Admin None      16 Jul 29 01:38 american.hash -> 
> americanmed.hash
> -rw-r--r-- 1 Admin None 1125408 Jul 29 01:38 americanmed.hash
> -rw-r--r-- 1 Admin None   24095 Jul 29 01:38 english.aff
> lrwxrwxrwx 1 Admin None      16 Jul 29 01:38 english.hash -> 
> americanmed.hash
> "
> (ispell-valid-dictionary-list)
> ("default")
> 
> 
> ;; Though now we can add dictionaries explicitly (-d with an absolute path)
> ispell-local-dictionary-alist
> nil
> 
> (add-to-list 'ispell-local-dictionary-alist
>            '("american" "[A-Za-z]" "[^A-Za-z]" "[']" nil
>              ("-d" "c:/cygwin64/usr/local/lib/american.hash") nil iso-8859-1))
> (("american" "[A-Za-z]" "[^A-Za-z]" "[']" nil ("-d" 
> "c:/cygwin64/usr/local/lib/american.hash") nil iso-8859-1))
> 
> 
> (add-to-list 'ispell-local-dictionary-alist
>            '("english" "[A-Za-z]" "[^A-Za-z]" "[']" nil
>              ("-d" "c:/cygwin64/usr/local/lib/english.hash") nil iso-8859-1))
> (("english" "[A-Za-z]" "[^A-Za-z]" "[']" nil ("-d" 
> "c:/cygwin64/usr/local/lib/english.hash") nil iso-8859-1) ("american" 
> "[A-Za-z]" "[^A-Za-z]" "[']" nil ("-d" 
> "c:/cygwin64/usr/local/lib/american.hash") nil iso-8859-1))
> 
> (ispell-valid-dictionary-list)
> ("american" "english" "default")
> 
> ;; or we can set ispell LIBRARYVAR (default: ISPELL_DICTDIR) environment 
> variable
> (setq ispell-local-dictionary-alist nil)
> nil
> (ispell-valid-dictionary-list)
> ("default")
> 
> (setenv "ISPELL_DICTDIR" "c:/cygwin64/usr/local/lib")
> "c:/cygwin64/usr/local/lib"
> 
> (setq ispell-library-directory (ispell-check-version))
> "c:/cygwin64/usr/local/lib"
> 
> (ispell-valid-dictionary-list)
> ("english" "american" "default")





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