23.0.50; ffap fails to recognize files whose names use backslashes

23.0.50; ffap fails to recognize files whose names use backslashes

[Eric Hanchrow]

Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.

Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list.

Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:

* I started emacs with "runemacs -Q"
* In the *scratch* buffer, I typed c:\autoexec.bat
* I then typed M-x ffap RET
I expected to see a minibuffer prompt that looked like

	Find file or URL: c:\autoexec.bat

Instead, I saw

	Find file or URL: c:/cygwin/usr/local/src/emacs-cvs/bin/

(That directory was in fact my current directory.)

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
If you would like to further debug the crash, please read the file
c:/cygwin/usr/local/src/emacs-cvs/etc/DEBUG for instructions.


In GNU Emacs 23.0.50.1 (i386-mingw-nt5.1.2600)
 of 2008-01-05 on FLAP
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (3.4)'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ENU
  locale-coding-system: cp1252
  default-enable-multibyte-characters: t

Major mode: Lisp Interaction

Minor modes in effect:
  tooltip-mode: t
  tool-bar-mode: t
  mouse-wheel-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  auto-compression-mode: t
  line-number-mode: t

Recent input:
/ e t c / p a s s w d M-b M-x f f a p <return> C-g 
C-x d c : / <return> q C-a C-k c : \ a u t o e x e 
c . b a t M-x f f a p <return> C-g M-b M-x f f a p 
<return> C-g M-b <backspace> / M-x f f a p <return> 
<return> C-x k <return> <backspace> ] <backspace> \ 
M-x f f a p <return> <return> q M-x r e p o r <tab> 
<return>

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Re: 23.0.50; ffap fails to recognize files whose names use backslashes

[Glenn Morris]

Eric Hanchrow wrote:

> * I started emacs with "runemacs -Q"
> * In the *scratch* buffer, I typed c:\autoexec.bat
> * I then typed M-x ffap RET
> I expected to see a minibuffer prompt that looked like
>
> 	Find file or URL: c:\autoexec.bat

It's hard for me to comment since I don't use Windows, but what
happens if you add "\" to the `file' element of
ffap-string-at-point-mode-alist? Eg:

(file "--:\\\\$+<>@-Z_[:lower:]~*?" "<@" "@>;.,!:")

Re: 23.0.50; ffap fails to recognize files whose names use backslashes

[Eric Hanchrow]

>>>>> "GM" == Glenn Morris <rgm@gnu.org> writes:

    GM> Eric Hanchrow wrote:
    >> * I started emacs with "runemacs -Q" * In the *scratch* buffer,
    >> I typed c:\autoexec.bat * I then typed M-x ffap RET I expected
    >> to see a minibuffer prompt that looked like
    >>
    >> Find file or URL: c:\autoexec.bat

    GM> It's hard for me to comment since I don't use Windows, but
    GM> what happens if you add "\" to the `file' element of
    GM> ffap-string-at-point-mode-alist?  Eg:

    GM> (file "--:\\\\$+<>@-Z_[:lower:]~*?"  "<@" "@>;.,!:")

It appears to work perfectly, is what happens.  << /me slaps forehead >>

I will explain why I didn't try that: mostly because I didn't see a
_forward_ slash in that list, and I was thinking "I've got to find out
how to make backslashes work like forward slashes".  I still don't
understand how ffap-string-at-point works, despite tracing through it
a number of times.

-- 
Покажи мне твой .emacs, и я скажу, кто ты.
        -- Russian Proverb

Re: 23.0.50; ffap fails to recognize files whose names use backslashes

[Eric Hanchrow]

>>>>> "Eric" == Eric Hanchrow <offby1@blarg.net> writes:

    GM> (file "--:\\\\$+<>@-Z_[:lower:]~*?"  "<@" "@>;.,!:")

    Eric> It appears to work perfectly, is what happens.  << /me slaps
    Eric> forehead >>

    Eric> I will explain why I didn't try that: mostly because I

I meant to say: "I will explain why I didn't try that _at first_:..."

-- 
"That sounds like a bunch of baloney," [Feynman] said. "Give
me something real to do." So we sent him out to buy some office
supplies.
        -- Danny Hillis