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* Emacs Defect. file-relative-name fail on some MS Windows Styled Path
@ 2012-06-30 16:42 Xah Lee
  2012-06-30 17:21 ` Eli Zaretskii
  0 siblings, 1 reply; 4+ messages in thread
From: Xah Lee @ 2012-06-30 16:42 UTC (permalink / raw)
  To: help-gnu-emacs

Emacs Defect. file-relative-name fail on some MS Windows Styled Path

file-relative-name doesn't work on MS Windows style path when the
drive letter is capitalized.

(file-relative-name "C:/Users/web/xyz.html" "C:/Users/web/") ; returns
"C:/Users/web/xyz.html"

(file-relative-name "c:/Users/web/xyz.html" "c:/Users/web/") ; returns
"xyz.html"

(file-relative-name "/Users/web/xyz.html" "/Users/web/") ; returns
"xyz.html"

GNU Emacs 24.1.1 (i386-mingw-nt6.1.7601) of 2012-06-10 on MARVIN

http://ergoemacs.org/emacs/emacs_bugs.html

 Xah


^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Emacs Defect. file-relative-name fail on some MS Windows Styled Path
  2012-06-30 16:42 Emacs Defect. file-relative-name fail on some MS Windows Styled Path Xah Lee
@ 2012-06-30 17:21 ` Eli Zaretskii
  2012-06-30 17:36   ` Eli Zaretskii
       [not found]   ` <mailman.3770.1341077781.855.help-gnu-emacs@gnu.org>
  0 siblings, 2 replies; 4+ messages in thread
From: Eli Zaretskii @ 2012-06-30 17:21 UTC (permalink / raw)
  To: help-gnu-emacs

> From: Xah Lee <xahlee@gmail.com>
> Date: Sat, 30 Jun 2012 09:42:52 -0700 (PDT)
> 
> Emacs Defect. file-relative-name fail on some MS Windows Styled Path
> 
> file-relative-name doesn't work on MS Windows style path when the
> drive letter is capitalized.

Confirmed.  Please "M-x report-emacs-bug RET".



^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Emacs Defect. file-relative-name fail on some MS Windows Styled Path
  2012-06-30 17:21 ` Eli Zaretskii
@ 2012-06-30 17:36   ` Eli Zaretskii
       [not found]   ` <mailman.3770.1341077781.855.help-gnu-emacs@gnu.org>
  1 sibling, 0 replies; 4+ messages in thread
From: Eli Zaretskii @ 2012-06-30 17:36 UTC (permalink / raw)
  To: help-gnu-emacs

> Date: Sat, 30 Jun 2012 20:21:13 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > From: Xah Lee <xahlee@gmail.com>
> > Date: Sat, 30 Jun 2012 09:42:52 -0700 (PDT)
> > 
> > Emacs Defect. file-relative-name fail on some MS Windows Styled Path
> > 
> > file-relative-name doesn't work on MS Windows style path when the
> > drive letter is capitalized.
> 
> Confirmed.  Please "M-x report-emacs-bug RET".

If you can rebuild your own Emacs, here's a tentative patch:

=== modified file 'lisp/files.el'
--- lisp/files.el	2012-05-07 04:29:59 +0000
+++ lisp/files.el	2012-06-30 17:31:57 +0000
@@ -4310,7 +4310,8 @@ on a DOS/Windows machine, it returns FIL
 							default-directory))))
     (setq filename (expand-file-name filename))
     (let ((fremote (file-remote-p filename))
-          (dremote (file-remote-p directory)))
+          (dremote (file-remote-p directory))
+	  (fold-case read-file-name-completion-ignore-case))
       (if ;; Conditions for separate trees
 	  (or
 	   ;; Test for different filesystems on DOS/Windows
@@ -4319,7 +4320,7 @@ on a DOS/Windows machine, it returns FIL
 	    (memq system-type '(ms-dos cygwin windows-nt))
 	    (or
 	     ;; Test for different drive letters
-	     (not (eq t (compare-strings filename 0 2 directory 0 2)))
+	     (not (eq t (compare-strings filename 0 2 directory 0 2 fold-case)))
 	     ;; Test for UNCs on different servers
 	     (not (eq t (compare-strings
 			 (progn
@@ -4344,16 +4345,16 @@ on a DOS/Windows machine, it returns FIL
           (while (not
 		  (or
 		   (eq t (compare-strings filename-dir nil (length directory)
-					  directory nil nil case-fold-search))
+					  directory nil nil fold-case))
 		   (eq t (compare-strings filename nil (length directory)
-					  directory nil nil case-fold-search))))
+					  directory nil nil fold-case))))
             (setq directory (file-name-directory (substring directory 0 -1))
 		  ancestor (if (equal ancestor ".")
 			       ".."
 			     (concat "../" ancestor))))
           ;; Now ancestor is empty, or .., or ../.., etc.
           (if (eq t (compare-strings filename nil (length directory)
-				     directory nil nil case-fold-search))
+				     directory nil nil fold-case))
 	      ;; We matched within FILENAME's directory part.
 	      ;; Add the rest of FILENAME onto ANCESTOR.
 	      (let ((rest (substring filename (length directory))))




^ permalink raw reply	[flat|nested] 4+ messages in thread

* Re: Emacs Defect. file-relative-name fail on some MS Windows Styled Path
       [not found]   ` <mailman.3770.1341077781.855.help-gnu-emacs@gnu.org>
@ 2012-06-30 18:52     ` Xah Lee
  0 siblings, 0 replies; 4+ messages in thread
From: Xah Lee @ 2012-06-30 18:52 UTC (permalink / raw)
  To: help-gnu-emacs

On Jun 30, 10:36 am, Eli Zaretskii <e...@gnu.org> wrote:
> > Date: Sat, 30 Jun 2012 20:21:13 +0300
> > From: Eli Zaretskii <e...@gnu.org>
>
> > > From: Xah Lee <xah...@gmail.com>
> > > Date: Sat, 30 Jun 2012 09:42:52 -0700 (PDT)
>
> > > Emacs Defect. file-relative-name fail on some MS Windows Styled Path
>
> > > file-relative-name doesn't work on MS Windows style path when the
> > > drive letter is capitalized.
>
> > Confirmed.  Please "M-x report-emacs-bug RET".
>
> If you can rebuild your own Emacs, here's a tentative patch:
>
> === modified file 'lisp/files.el'
> --- lisp/files.el       2012-05-07 04:29:59 +0000
> +++ lisp/files.el       2012-06-30 17:31:57 +0000
> @@ -4310,7 +4310,8 @@ on a DOS/Windows machine, it returns FIL
>                                                         default-directory))))
>      (setq filename (expand-file-name filename))
>      (let ((fremote (file-remote-p filename))
> -          (dremote (file-remote-p directory)))
> +          (dremote (file-remote-p directory))
> +         (fold-case read-file-name-completion-ignore-case))
>        (if ;; Conditions for separate trees
>           (or
>            ;; Test for different filesystems on DOS/Windows
> @@ -4319,7 +4320,7 @@ on a DOS/Windows machine, it returns FIL
>             (memq system-type '(ms-dos cygwin windows-nt))
>             (or
>              ;; Test for different drive letters
> -            (not (eq t (compare-strings filename 0 2 directory 0 2)))
> +            (not (eq t (compare-strings filename 0 2 directory 0 2 fold-case)))
>              ;; Test for UNCs on different servers
>              (not (eq t (compare-strings
>                          (progn
> @@ -4344,16 +4345,16 @@ on a DOS/Windows machine, it returns FIL
>            (while (not
>                   (or
>                    (eq t (compare-strings filename-dir nil (length directory)
> -                                         directory nil nil case-fold-search))
> +                                         directory nil nil fold-case))
>                    (eq t (compare-strings filename nil (length directory)
> -                                         directory nil nil case-fold-search))))
> +                                         directory nil nil fold-case))))
>              (setq directory (file-name-directory (substring directory 0 -1))
>                   ancestor (if (equal ancestor ".")
>                                ".."
>                              (concat "../" ancestor))))
>            ;; Now ancestor is empty, or .., or ../.., etc.
>            (if (eq t (compare-strings filename nil (length directory)
> -                                    directory nil nil case-fold-search))
> +                                    directory nil nil fold-case))
>               ;; We matched within FILENAME's directory part.
>               ;; Add the rest of FILENAME onto ANCESTOR.
>               (let ((rest (substring filename (length directory))))

Thanks. Reported to bug-gnu-emacs.

 Xah


^ permalink raw reply	[flat|nested] 4+ messages in thread

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Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-06-30 16:42 Emacs Defect. file-relative-name fail on some MS Windows Styled Path Xah Lee
2012-06-30 17:21 ` Eli Zaretskii
2012-06-30 17:36   ` Eli Zaretskii
     [not found]   ` <mailman.3770.1341077781.855.help-gnu-emacs@gnu.org>
2012-06-30 18:52     ` Xah Lee

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