GNU bug report logs - #6114
23.1; grep-read-files does incorrect wildcard match

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From: S Boucher <stbya <at> yahoo.com>
To: Juri Linkov <juri <at> jurta.org>
Cc: 6114 <at> debbugs.gnu.org
Subject: bug#6114: 23.1; grep-read-files does incorrect wildcard match
Date: Fri, 21 May 2010 09:20:15 -0700 (PDT)

Tried it.  Seems to work.

Thanks,

--- On Thu, 5/20/10, Juri Linkov <juri <at> jurta.org> wrote:

> From: Juri Linkov <juri <at> jurta.org>
> Subject: Re: 23.1; grep-read-files does incorrect wildcard match
> To: "S Boucher" <stbya <at> yahoo.com>
> Cc: 6114 <at> debbugs.gnu.org
> Received: Thursday, May 20, 2010, 8:28 PM
> > This bug is for (defun
> grep-read-files (regexp) in file grep.el.
> >
> > In grep-read-files, there's a call to
> (wildcard-to-regexp (cdr alias))
> > with the assumption that (cdr alias) is a single
> pattern.  However,
> > the variable grep-files-aliases actually can have
> multiple patterns
> > for each alias.  So, the multi-pattern aliases,
> such as for "cc",
> > cannot correctly match:
> >
> > (defcustom grep-files-aliases
> >   '(("asm" .    "*.[sS]")
> >     ("c" . 
>    "*.c")
> >     ("cc" .    "*.cc
> *.cxx *.cpp *.C *.CC *.c++")
> >     ... etc...
> 
> Does this patch do what you want?  (Please note that
> we have to remove
> "*" ("all") because it matches everything.)
> 
> === modified file 'lisp/progmodes/grep.el'
> --- lisp/progmodes/grep.el    2010-04-20
> 00:49:46 +0000
> +++ lisp/progmodes/grep.el    2010-05-21
> 00:27:18 +0000
> @@ -781,12 +781,17 @@ (defun grep-read-files (regexp)
>           
> (file-name-nondirectory bn)))
>       (default-alias
>         (and fn
> -        (let ((aliases
> grep-files-aliases)
> +        (let ((aliases
> (remove (assoc "all" grep-files-aliases)
> +           
>        
>    grep-files-aliases))
>               
> alias)
>            (while
> aliases
>              (setq
> alias (car aliases)
>             
>   aliases (cdr aliases))
> -            (if
> (string-match (wildcard-to-regexp (cdr alias)) fn)
> +            (if
> (string-match (mapconcat
> +           
>        
>    'wildcard-to-regexp
> +           
>        
>    (split-string (cdr alias) nil t)
> +           
>            "\\|")
> +           
>           fn)
>             
> (setq aliases nil)
>               
> (setq alias nil)))
>            (cdr
> alias))))
> 
> -- 
> Juri Linkov
> http://www.jurta.org/emacs/
> 

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