7:21 p.m.
================================================================
Dear Bug Team!
Try this experiment:
echo "This is from /tmp" > /tmp/~somefile
echo "This is from ~/" > ~/~somefile
In (X)Emacs:
C-x C-f /tmp/<C-q>~somefile
Output:
"This is from ~/"
Now, why is that?
================================================================
System Info to help track down your bug:
---------------------------------------
OS version:
Microsoft Windows 2000 [Version 5.00.2195]
OS: Windows_NT
XEmacs 21.4.6 \"Common Lisp (Windows)\" configured for `i586-pc-win32'.
Building XEmacs in \"f:\\xemacs\\xemacs-21.4-release\\nt\".
Using compiler \"cl -nologo -W3 -O2 -G5 -ML\".
Installing XEmacs in \"c:\\Program Files\\XEmacs\\XEmacs-21.4.6\".
Package path is \"~\\.xemacs;;c:\\Program Files\\XEmacs\\site-packages;c:\\Program
Files\\XEmacs\\xemacs-packages\".
Compiling in support for Microsoft Windows native GUI.
Compiling in support for XPM images.
Compiling in support for GIF images.
Compiling in support for PNG images.
Compiling in support for TIFF images.
Compiling in support for JPEG images.
Compiling in support for X-Face message headers.
Compiling in support for toolbars.
Compiling in support for dialogs.
Compiling in support for widgets.
Compiling in support for native sounds.
Compiling in fast dired implementation.
Using minimal tagbits.
Using indexed lrecord implementation.
Using portable dumper.
Load-Path Lisp Shadows:
----------------------
(c:\Program Files\XEmacs\xemacs-packages\lisp\mail-lib\base64
c:\Program Files\XEmacs\xemacs-packages\lisp\w3\base64)
Installed XEmacs Packages:
-------------------------
((zenirc:version 1.11 :type regular)
(xslt-process :version 1.05 :type regular)
(xemacs-devel :version 1.38 :type single-file)
(xemacs-base :version 1.56 :type regular)
(w3 :version 1.2 :type regular)
(vm :version 7.18 :author-version "7.17" :type regular)
(viper :version 1.29 :type regular)
(view-process :version 1.11 :type regular)
(vhdl :version 1.13 :type regular)
(vc-cc :version 1.18 :type regular)
(vc :version 1.29 :type regular)
(tramp :version 1.0 :type regular)
(tpu :version 1.12 :type regular)
(tooltalk :version 1.13 :type regular)
(tm :version 1.29 :type regular)
(time :version 1.11 :type regular)
(textools :version 1.12 :type regular)
(text-modes :version
1
.71
:author-version
"No-Upstream-Ver
" :type
single-file)
(texinfo :version 1.2 :type regular)
(supercite :version 1.2 :author-version "3.55x3" :type regular)
(strokes :version 1.08 :type regular)
(speedbar :version 1.21 :type regular)
(sounds-wav :version 1.1 :type regular)
(sounds-au :version 1.1 :type regular)
(slider :version 1.13 :type regular)
(sh-script :version 1.13 :type regular)
(sgml :version 1.08 :type regular)
(semantic :version 1.1 :type regular)
(scheme :version 1.11 :type regular)
(rmail :version 1.12 :type regular)
(reftex :version 1.23 :type regular)
(psgml :version 1.23 :type regular)
(ps-print-nomule :version 1.05 :type regular)
(prog-modes
:version
1
.44
:type
single-file)
(pcomplete :version 1.01 :type regular)
(pcl-cvs :version 1.55 :type regular)
(pc :version 1.2 :type single-file)
(os-utils :version 1.25 :type single-file)
(net-utils :version
1
.33
:author-version
"No-Upstream-Ver
" :type
single-file)
(misc-games :version 1.15 :type single-file)
(mine :version 1.14 :type regular)
(mh-e :version 1.13 :type regular)
(mew :version 1.14 :type regular)
(mailcrypt :version 2.09 :type regular)
(mail-lib :version 1.63 :author-version "No-Upstream-Ver" :type regular)
(jde :version 1.31 :type regular)
(ispell :version 1.23 :type regular)
(ilisp :version 1.19 :type regular)
(igrep :version 1.08 :type regular)
(idlwave :version 1.23 :type regular)
(hm--html-menus :version 1.16 :type regular)
(gnus :version 1.73 :type regular)
(gnats :version 1.12 :type regular)
(games :version 1.13 :type regular)
(fsf-compat :version 1.09 :type single-file)
(frame-icon :version 1.09 :type regular)
(forms :version 1.13 :type regular)
(footnote :version 1.13 :type regular)
(eudc :version 1.34 :type regular)
(eterm :version 1.13 :type regular)
(eshell :version 1.01 :type regular)
(emerge :version 1.09 :type regular)
(elib :version 1.08 :type single-file)
(eieio :version 1.01 :type regular)
(eicq :version 1.05 :type regular)
(efs :version 1.26 :type regular)
(edt :version 1.12 :type regular)
(edit-utils :version 1.73 :type single-file)
(ediff :version 1.33 :type regular)
(edebug :version 1.14 :type regular)
(dired :version 1.11 :type regular)
(dictionary :version 1.05 :type regular)
(debug :version 1.14 :type regular)
(crisp :version 1.12 :type regular)
(cookie :version 1.13 :type regular)
(clearcase :version 1.0 :type regular)
(cc-mode :version 1.26 :type regular)
(calendar :version 1.17 :type regular)
(calc :version 1.17 :type regular)
(c-support :version 1.16 :type single-file)
(build :version 1.03 :type regular)
(bbdb :version 1.16 :type regular)
(auctex :version 1.28 :type regular)
(apel :version 1.2 :type regular)
(ada :version 1.1 :type regular)
(Sun :version 1.13 :type regular))
Features:
--------
(mail-abbrevs xemacsbug shadow efs-x19.15 efs-fnh efs-ovwrt efs-netrc
efs-defun comint ring efs efs-dump efs-cu package-ui package-get
package-admin config pending-del smtpmail sendmail rfc822 font-lock
cus-face zenirc-autoloads xslt-process-autoloads
xemacs-devel-autoloads xemacs-base-autoloads w3-autoloads vm-autoloads
viper-autoloads view-process-autoloads vhdl-autoloads vc-cc-autoloads
vc-autoloads tramp-autoloads tpu-autoloads tooltalk-autoloads
tm-autoloads time-autoloads textools-autoloads text-modes-autoloads
texinfo-autoloads supercite-autoloads strokes-autoloads
speedbar-autoloads sounds-wav-autoloads sounds-au-autoloads
slider-autoloads sh-script-autoloads sgml-autoloads semantic-autoloads
scheme-autoloads rmail-autoloads reftex-autoloads psgml-autoloads
ps-print-nomule-autoloads prog-modes-autoloads pcomplete-autoloads
pcl-cvs-autoloads pc-autoloads os-utils-autoloads net-utils-autoloads
misc-games-autoloads mine-autoloads mh-e-autoloads mew-autoloads
mailcrypt-autoloads mail-lib-autoloads jde-autoloads ispell-autoloads
ilisp-autoloads igrep-autoloads idlwave-autoloads
hm--html-menus-autoloads gnus-autoloads gnats-autoloads
games-autoloads fsf-compat-autoloads frame-icon-autoloads
forms-autoloads footnote-autoloads eudc-autoloads eterm-autoloads
eshell-autoloads emerge-autoloads elib-autoloads eieio-autoloads
eicq-autoloads efs-autoloads edt-autoloads edit-utils-autoloads
ediff-autoloads edebug-autoloads dired-autoloads dictionary-autoloads
debug-autoloads crisp-autoloads cookie-autoloads clearcase-autoloads
cc-mode-autoloads calendar-autoloads calc-autoloads
c-support-autoloads build-autoloads bbdb-autoloads auctex-autoloads
apel-autoloads ada-autoloads Sun-autoloads lisp-autoloads loadhist
auto-show fontl-hooks code-cmds gutter-items menubar-items x-menubar
dragdrop mode-motion mouse itimer auto-save lisp-mode easymenu
iso8859-1 page buff-menu lib-complete help-nomule cus-file derived
frame text-props obsolete cus-start custom widget cl-extra mini-cl cl
cl-19 packages backquote very-early-lisp file-coding
mswindows-scrollbars mswindows toolbar native-sound scrollbar
network-streams subprocesses menu-accelerator-support menubar md5
xemacs gutter tiff png gif jpeg xface xpm xbm lisp-float-type
windows-nt dragdrop-api dialog devices window-system base64)
Recent keystrokes:
-----------------
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user misc-user misc-user misc-user misc-user
misc-user misc-user q misc-user
Recent messages (most recent first):
-----------------------------------
Loading xemacsbug...done
Loading xemacsbug...
Creating package list ...
Updated package-get database
Got 118 package-get database entries
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...done
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...100% (3.6
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...97% (3.6
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...92% (3.6
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...86% (3.6
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...81% (3.6
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...76% (3.6
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...71% (3.6
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...65% (3.5
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...60% (3.5
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...55% (3.5
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...50% (3.5
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...44% (3.4
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...39% (3.4
KB/s)
Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...34% (3.4
KB/s)
7:58 p.m.
>>>> "bobchan" == bobchan
<bobchan(a)webone.com.au> writes:
bobchan> ================================================================
bobchan> Dear Bug Team!
bobchan> Try this experiment:
bobchan> echo "This is from /tmp" > /tmp/~somefile
bobchan> echo "This is from ~/" > ~/~somefile
bobchan> In (X)Emacs:
bobchan> C-x C-f /tmp/<C-q>~somefile
bobchan> Output:
bobchan> "This is from ~/"
bobchan> Now, why is that?
Hi bobchan, what you are experiencing is electricity.
See
http://www.xemacs.org/Documentation/21.5/html/xemacs_9.html#SEC61
It is controlled by variable
minibuffer-electric-file-name-behavior
which see.
Best regards,
Adrian
bobchan> ================================================================
bobchan> System Info to help track down your bug:
bobchan> ---------------------------------------
bobchan> OS version:
bobchan> Microsoft Windows 2000 [Version 5.00.2195]
bobchan> OS: Windows_NT
bobchan> XEmacs 21.4.6 \"Common Lisp (Windows)\" configured for
`i586-pc-win32'.
bobchan> Building XEmacs in \"f:\\xemacs\\xemacs-21.4-release\\nt\".
bobchan> Using compiler \"cl -nologo -W3 -O2 -G5 -ML\".
bobchan> Installing XEmacs in \"c:\\Program
Files\\XEmacs\\XEmacs-21.4.6\".
bobchan> Package path is \"~\\.xemacs;;c:\\Program
Files\\XEmacs\\site-packages;c:\\Program Files\\XEmacs\\xemacs-packages\".
bobchan> Compiling in support for Microsoft Windows native GUI.
bobchan> Compiling in support for XPM images.
bobchan> Compiling in support for GIF images.
bobchan> Compiling in support for PNG images.
bobchan> Compiling in support for TIFF images.
bobchan> Compiling in support for JPEG images.
bobchan> Compiling in support for X-Face message headers.
bobchan> Compiling in support for toolbars.
bobchan> Compiling in support for dialogs.
bobchan> Compiling in support for widgets.
bobchan> Compiling in support for native sounds.
bobchan> Compiling in fast dired implementation.
bobchan> Using minimal tagbits.
bobchan> Using indexed lrecord implementation.
bobchan> Using portable dumper.
bobchan> Load-Path Lisp Shadows:
bobchan> ----------------------
bobchan> (c:\Program Files\XEmacs\xemacs-packages\lisp\mail-lib\base64
bobchan> c:\Program Files\XEmacs\xemacs-packages\lisp\w3\base64)
bobchan> Installed XEmacs Packages:
bobchan> -------------------------
bobchan> ((zenirc:version 1.11 :type regular)
bobchan> (xslt-process :version 1.05 :type regular)
bobchan> (xemacs-devel :version 1.38 :type single-file)
bobchan> (xemacs-base :version 1.56 :type regular)
bobchan> (w3 :version 1.2 :type regular)
bobchan> (vm :version 7.18 :author-version "7.17" :type regular)
bobchan> (viper :version 1.29 :type regular)
bobchan> (view-process :version 1.11 :type regular)
bobchan> (vhdl :version 1.13 :type regular)
bobchan> (vc-cc :version 1.18 :type regular)
bobchan> (vc :version 1.29 :type regular)
bobchan> (tramp :version 1.0 :type regular)
bobchan> (tpu :version 1.12 :type regular)
bobchan> (tooltalk :version 1.13 :type regular)
bobchan> (tm :version 1.29 :type regular)
bobchan> (time :version 1.11 :type regular)
bobchan> (textools :version 1.12 :type regular)
bobchan> (text-modes :version
bobchan> 1
bobchan> .71
bobchan> :author-version
bobchan> "No-Upstream-Ver
bobchan> " :type
bobchan> single-file)
bobchan> (texinfo :version 1.2 :type regular)
bobchan> (supercite :version 1.2 :author-version "3.55x3" :type
regular)
bobchan> (strokes :version 1.08 :type regular)
bobchan> (speedbar :version 1.21 :type regular)
bobchan> (sounds-wav :version 1.1 :type regular)
bobchan> (sounds-au :version 1.1 :type regular)
bobchan> (slider :version 1.13 :type regular)
bobchan> (sh-script :version 1.13 :type regular)
bobchan> (sgml :version 1.08 :type regular)
bobchan> (semantic :version 1.1 :type regular)
bobchan> (scheme :version 1.11 :type regular)
bobchan> (rmail :version 1.12 :type regular)
bobchan> (reftex :version 1.23 :type regular)
bobchan> (psgml :version 1.23 :type regular)
bobchan> (ps-print-nomule :version 1.05 :type regular)
bobchan> (prog-modes
bobchan> :version
bobchan> 1
bobchan> .44
bobchan> :type
bobchan> single-file)
bobchan> (pcomplete :version 1.01 :type regular)
bobchan> (pcl-cvs :version 1.55 :type regular)
bobchan> (pc :version 1.2 :type single-file)
bobchan> (os-utils :version 1.25 :type single-file)
bobchan> (net-utils :version
bobchan> 1
bobchan> .33
bobchan> :author-version
bobchan> "No-Upstream-Ver
bobchan> " :type
bobchan> single-file)
bobchan> (misc-games :version 1.15 :type single-file)
bobchan> (mine :version 1.14 :type regular)
bobchan> (mh-e :version 1.13 :type regular)
bobchan> (mew :version 1.14 :type regular)
bobchan> (mailcrypt :version 2.09 :type regular)
bobchan> (mail-lib :version 1.63 :author-version "No-Upstream-Ver" :type
regular)
bobchan> (jde :version 1.31 :type regular)
bobchan> (ispell :version 1.23 :type regular)
bobchan> (ilisp :version 1.19 :type regular)
bobchan> (igrep :version 1.08 :type regular)
bobchan> (idlwave :version 1.23 :type regular)
bobchan> (hm--html-menus :version 1.16 :type regular)
bobchan> (gnus :version 1.73 :type regular)
bobchan> (gnats :version 1.12 :type regular)
bobchan> (games :version 1.13 :type regular)
bobchan> (fsf-compat :version 1.09 :type single-file)
bobchan> (frame-icon :version 1.09 :type regular)
bobchan> (forms :version 1.13 :type regular)
bobchan> (footnote :version 1.13 :type regular)
bobchan> (eudc :version 1.34 :type regular)
bobchan> (eterm :version 1.13 :type regular)
bobchan> (eshell :version 1.01 :type regular)
bobchan> (emerge :version 1.09 :type regular)
bobchan> (elib :version 1.08 :type single-file)
bobchan> (eieio :version 1.01 :type regular)
bobchan> (eicq :version 1.05 :type regular)
bobchan> (efs :version 1.26 :type regular)
bobchan> (edt :version 1.12 :type regular)
bobchan> (edit-utils :version 1.73 :type single-file)
bobchan> (ediff :version 1.33 :type regular)
bobchan> (edebug :version 1.14 :type regular)
bobchan> (dired :version 1.11 :type regular)
bobchan> (dictionary :version 1.05 :type regular)
bobchan> (debug :version 1.14 :type regular)
bobchan> (crisp :version 1.12 :type regular)
bobchan> (cookie :version 1.13 :type regular)
bobchan> (clearcase :version 1.0 :type regular)
bobchan> (cc-mode :version 1.26 :type regular)
bobchan> (calendar :version 1.17 :type regular)
bobchan> (calc :version 1.17 :type regular)
bobchan> (c-support :version 1.16 :type single-file)
bobchan> (build :version 1.03 :type regular)
bobchan> (bbdb :version 1.16 :type regular)
bobchan> (auctex :version 1.28 :type regular)
bobchan> (apel :version 1.2 :type regular)
bobchan> (ada :version 1.1 :type regular)
bobchan> (Sun :version 1.13 :type regular))
bobchan> Features:
bobchan> --------
bobchan> (mail-abbrevs xemacsbug shadow efs-x19.15 efs-fnh efs-ovwrt efs-netrc
bobchan> efs-defun comint ring efs efs-dump efs-cu package-ui package-get
bobchan> package-admin config pending-del smtpmail sendmail rfc822 font-lock
bobchan> cus-face zenirc-autoloads xslt-process-autoloads
bobchan> xemacs-devel-autoloads xemacs-base-autoloads w3-autoloads vm-autoloads
bobchan> viper-autoloads view-process-autoloads vhdl-autoloads vc-cc-autoloads
bobchan> vc-autoloads tramp-autoloads tpu-autoloads tooltalk-autoloads
bobchan> tm-autoloads time-autoloads textools-autoloads text-modes-autoloads
bobchan> texinfo-autoloads supercite-autoloads strokes-autoloads
bobchan> speedbar-autoloads sounds-wav-autoloads sounds-au-autoloads
bobchan> slider-autoloads sh-script-autoloads sgml-autoloads semantic-autoloads
bobchan> scheme-autoloads rmail-autoloads reftex-autoloads psgml-autoloads
bobchan> ps-print-nomule-autoloads prog-modes-autoloads pcomplete-autoloads
bobchan> pcl-cvs-autoloads pc-autoloads os-utils-autoloads net-utils-autoloads
bobchan> misc-games-autoloads mine-autoloads mh-e-autoloads mew-autoloads
bobchan> mailcrypt-autoloads mail-lib-autoloads jde-autoloads ispell-autoloads
bobchan> ilisp-autoloads igrep-autoloads idlwave-autoloads
bobchan> hm--html-menus-autoloads gnus-autoloads gnats-autoloads
bobchan> games-autoloads fsf-compat-autoloads frame-icon-autoloads
bobchan> forms-autoloads footnote-autoloads eudc-autoloads eterm-autoloads
bobchan> eshell-autoloads emerge-autoloads elib-autoloads eieio-autoloads
bobchan> eicq-autoloads efs-autoloads edt-autoloads edit-utils-autoloads
bobchan> ediff-autoloads edebug-autoloads dired-autoloads dictionary-autoloads
bobchan> debug-autoloads crisp-autoloads cookie-autoloads clearcase-autoloads
bobchan> cc-mode-autoloads calendar-autoloads calc-autoloads
bobchan> c-support-autoloads build-autoloads bbdb-autoloads auctex-autoloads
bobchan> apel-autoloads ada-autoloads Sun-autoloads lisp-autoloads loadhist
bobchan> auto-show fontl-hooks code-cmds gutter-items menubar-items x-menubar
bobchan> dragdrop mode-motion mouse itimer auto-save lisp-mode easymenu
bobchan> iso8859-1 page buff-menu lib-complete help-nomule cus-file derived
bobchan> frame text-props obsolete cus-start custom widget cl-extra mini-cl cl
bobchan> cl-19 packages backquote very-early-lisp file-coding
bobchan> mswindows-scrollbars mswindows toolbar native-sound scrollbar
bobchan> network-streams subprocesses menu-accelerator-support menubar md5
bobchan> xemacs gutter tiff png gif jpeg xface xpm xbm lisp-float-type
bobchan> windows-nt dragdrop-api dialog devices window-system base64)
bobchan> Recent keystrokes:
bobchan> -----------------
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user misc-user misc-user misc-user misc-user
bobchan> misc-user misc-user q misc-user
bobchan> Recent messages (most recent first):
bobchan> -----------------------------------
bobchan> Loading xemacsbug...done
bobchan> Loading xemacsbug...
bobchan> Creating package list ...
bobchan> Updated package-get database
bobchan> Got 118 package-get database entries
bobchan> Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...done
bobchan> Retrieving
/anonymous＠mirror.aarnet.edu.au:/pub/xemacs/packages/package-index.LATEST.pgp...100% (3.6
KB/s)
bobchan> Retrieving
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--
Adrian Aichner
mailto:adrian＠xemacs.org
http://www.xemacs.org/
9:34 p.m.
Adrian Aichner <adrian(a)xemacs.org> writes:
>>>>> "bobchan" == bobchan
<bobchan(a)webone.com.au> writes:
bobchan> ================================================================
bobchan> Dear Bug Team!
bobchan> Try this experiment:
bobchan> echo "This is from /tmp" > /tmp/~somefile
bobchan> echo "This is from ~/" > ~/~somefile
bobchan> In (X)Emacs:
bobchan> C-x C-f /tmp/<C-q>~somefile
bobchan> Output:
bobchan> "This is from ~/"
bobchan> Now, why is that?
Hi bobchan, what you are experiencing is electricity.
Note that "electricity" is when what are normally self-insert keys
behave specially, e.g. "/" and "~" in minibuffers. But he is *not*
experiencing that because he used <C-q> explicitly.
It sounds like a (mis)feature in the read-file-name designed to deal
with electricity *not* being available, probably inherited from FSF.
Without electricity, you *have* to handle "/tmp/~/x" as "~/x",
otherwise people would have to use `C-a C-k' every time.
The culprit is `substitute-in-file-name', called by
`read-file-name-2'. Note that expand-file-name was fixed some time
ago (probably during my synch with FSF 19.34) to not mangle
"/.../~foo", but substitute-in-file-name wasn't. Therefore:
(expand-file-name "/tmp/~blah")
-> "/tmp/~blah"
(substitute-in-file-name "/tmp/~blah")
-> "~blah" ; WRONG!
FSF has the same bug.
10:14 p.m.
>>>> "Hrvoje" == Hrvoje Niksic
<hniksic(a)xemacs.org> writes:
Hrvoje> Adrian Aichner <adrian(a)xemacs.org> writes:
>>>>>> "bobchan" == bobchan
<bobchan(a)webone.com.au> writes:
>
bobchan>
================================================================
bobchan> Dear Bug Team!
>
bobchan> Try this experiment:
>
bobchan> echo "This is from /tmp" >
/tmp/~somefile
bobchan> echo "This is from ~/" > ~/~somefile
>
bobchan> In (X)Emacs:
>
bobchan> C-x C-f /tmp/<C-q>~somefile
>
bobchan> Output:
>
bobchan> "This is from ~/"
>
bobchan> Now, why is that?
>
>> Hi bobchan, what you are experiencing is
electricity.
Hrvoje> Note that "electricity" is when what are normally
Hrvoje> self-insert keys behave specially, e.g. "/" and "~" in
Hrvoje> minibuffers. But he is *not* experiencing that because he
Hrvoje> used <C-q> explicitly.
I first saw that C-q, but forgot about it while searching for
documentation references.
The only thing I found is that
minibuffer-electric-file-name-behavior
does not seem to be documented anywhere outside its docstring.
Hrvoje> It sounds like a (mis)feature in the read-file-name
Hrvoje> designed to deal with electricity *not* being available,
Hrvoje> probably inherited from FSF. Without electricity, you
Hrvoje> *have* to handle "/tmp/~/x" as "~/x", otherwise people
Hrvoje> would have to use `C-a C-k' every time.
Hrvoje> The culprit is `substitute-in-file-name', called by
Hrvoje> `read-file-name-2'. Note that expand-file-name was fixed
Hrvoje> some time ago (probably during my synch with FSF 19.34) to
Hrvoje> not mangle "/.../~foo", but substitute-in-file-name
Hrvoje> wasn't. Therefore:
Hrvoje> (expand-file-name "/tmp/~blah")
-> "/tmp/~blah"
Hrvoje> (substitute-in-file-name "/tmp/~blah")
-> "~blah" ; WRONG!
Hrvoje> FSF has the same bug.
But the example you comment as WRONG is exactly the behavior
documented in the substitute-in-file-name docstring in 21.5-b16:
If `/~' appears, all of FILENAME through that `/' is discarded.
Are you sure this is wrong?
expand-file-name explicitely refers to substitute-in-file-name.
I am not sure what we are seing is a bug unless the docstring is alos
a bug.
--
Adrian Aichner
mailto:adrian＠xemacs.org
http://www.xemacs.org/
midnight
Adrian Aichner <adrian(a)xemacs.org> writes:
But the example you comment as WRONG is exactly the behavior
documented in the substitute-in-file-name docstring in 21.5-b16:
If `/~' appears, all of FILENAME through that `/' is discarded.
Are you sure this is wrong?
[...]
I am not sure what we are seing is a bug unless the docstring is
alos a bug.
But that's the point, isn't it? Yes, substitute-in-file-name behaves
as documented, but I'm not convinced that such behavior is correct.
It certainly can't be right that you cannot find a file whose name
happens to begin with a tilde!
Maybe someone should ask the FSF maintainers what's their position on
this. Changing the behavior of substitute-in-file-name (or, for that
matter, read-file-name) is not something that should be done lightly.
expand-file-name explicitely refers to substitute-in-file-name.
Yes, but expand-file-name only expands *initial* "~/" and
"~username/", which is much better.
6:13 p.m.
Hrvoje Niksic wrote:
Adrian Aichner <adrian(a)xemacs.org> writes:
>But the example you comment as WRONG is exactly the behavior
>documented in the substitute-in-file-name docstring in 21.5-b16:
>
> If `/~' appears, all of FILENAME through that `/' is discarded.
>
>Are you sure this is wrong?
>
>
[...]
>I am not sure what we are seing is a bug unless the docstring is
>alos a bug.
>
>
But that's the point, isn't it? Yes, substitute-in-file-name behaves
as documented, but I'm not convinced that such behavior is correct.
It certainly can't be right that you cannot find a file whose name
happens to begin with a tilde!
Maybe someone should ask the FSF maintainers what's their position on
this. Changing the behavior of substitute-in-file-name (or, for that
matter, read-file-name) is not something that should be done lightly.
>expand-file-name explicitely refers to substitute-in-file-name.
>
>
Yes, but expand-file-name only expands *initial* "~/" and
"~username/", which is much better.
[Sorry for hopping in late!!]
I must be missing something. The only place special handling of ~ or /
seems appropriate in minibuffer-read-file-name (or whatever) is when it is
the FIRST character typed by the user. Nicht wahr?
Whether it's electrical or post-<CR> scanning, it doesn't make sense to
look elsewhere.
--
David A. Cobb, Software Engineer, Public Access Advocate
"By God's Grace, I am a Christian man; by my actions a great sinner." -- The
Way of a Pilgrim: R.French, Tr.
Life is too short to tolerate crappy software!
9:59 p.m.
>>>> "David" == David A Cobb
<Superbiskit(a)cox.net> writes:
<37 lines deleted by Adrian Aichner>
David> [Sorry for hopping in late!!]
David> I must be missing something. The only place special
David> handling of ~ or / seems appropriate in
David> minibuffer-read-file-name (or whatever) is when it is the
David> FIRST character typed by the user. Nicht wahr?
David> Whether it's electrical or post-<CR> scanning, it doesn't
David> make sense
David> to look elsewhere.
The idea, as I understand it, is that you do not need to erase
previous entry if you change your mind in the middle of a long path
entry.
e.g. in native XEmacs:
C-x d \ a \ b \ c \ d \ e \ \
electrically deletes to
C-x d \
This is annoying when done by accident, until you're tipped off (like
I was after a long time of use) that
f1 (advertised-undo)
will actually undo the electric delete.
Some for use of ~.
Hrvoje's gripe still stands that one cannot access files beginning
with ~.
I guess \ in native Windows and / elsewhere is not a big problem in
practice since such files are pretty rare, like files containing BS or
DEL in their names.
Somebody who cares enough about these particular issues will have to
take them up.
I got enough on my plate.
--
Adrian Aichner
mailto:adrian＠xemacs.org
http://www.xemacs.org/
11:50 p.m.
Adrian Aichner wrote:
>>>>>"David" == David A Cobb
<Superbiskit(a)cox.net> writes:
>>>>>
>>>>>
<37 lines deleted by Adrian Aichner>
David> [Sorry for hopping in late!!]
David> I must be missing something. The only place special
David> handling of ~ or / seems appropriate in
David> minibuffer-read-file-name (or whatever) is when it is the
David> FIRST character typed by the user. Nicht wahr?
David> Whether it's electrical or post-<CR> scanning, it doesn't
David> make sense
David> to look elsewhere.
The idea, as I understand it, is that you do not need to erase
previous entry if you change your mind in the middle of a long path
entry.
e.g. in native XEmacs:
C-x d \ a \ b \ c \ d \ e \ \
electrically deletes to
C-x d \
This is annoying when done by accident, until you're tipped off (like
I was after a long time of use) that
f1 (advertised-undo)
will actually undo the electric delete.
Some for use of ~.
No, not the same for ~. If the user types / / (or \ \), that is
something that cannot appear legally in a path. She should expect some
special behavior ( or a error ). In fact, she probably knows what she's
doing and expects exactly what happens.
BUT, '~' in a filename is special only at the head of the path. To get
the self-correcting behavior for the tilde, the user should be typing /
/ ~ (or some such).
Not to stray too far afield, similar self-correcting behavior for the
colon (:) in Win NT-Native would be a nice feature -- capture the
preceding character as the drive-letter and toss out anything before that.
Would someone point me in the direction of the appropriate lisp routine?
--
David A. Cobb, Software Engineer, Public Access Advocate
"By God's Grace, I am a Christian man; by my actions a great sinner." -- The
Way of a Pilgrim: R.French, Tr.
Life is too short to tolerate crappy software!
12:54 a.m.
"David A. Cobb" <Superbiskit(a)cox.net> writes:
No, not the same for ~. If the user types / / (or \ \), that is
something that cannot appear legally in a path. She should expect
some special behavior ( or a error ). In fact, she probably knows
what she's doing and expects exactly what happens.
BUT, '~' in a filename is special only at the head of the path. To
get the self-correcting behavior for the tilde, the user should be
typing / / ~ (or some such).
I tend to agree with this reasoning. I'd even go one step farther and
ask whether, with the electric behavior being the default, we even
need to handle appearance of "/~" specially at all.
Not to stray too far afield, similar self-correcting behavior for
the colon (:) in Win NT-Native would be a nice feature -- capture
the preceding character as the drive-letter and toss out anything
before that.
Would someone point me in the direction of the appropriate lisp
routine?
If you wish to implement an "electric colon", take a look at the
implementation of minibuffer-electric-tilde in minibuf.el.
The other place would be substitute-in-file-name, which currently
handles the "/~..." case, but I think it's a better idea to discourage
people from adding more hacks there. If anything, we should have that
function do what the name implies and simply substitute the $ vars; if
other modifications need to be made, those should be done by
read-file-name or by simply relying on the electric tilde/slash/colon
doing their jobs.
10:28 p.m.
"David A. Cobb" <Superbiskit(a)cox.net> writes:
[Sorry for hopping in late!!] I must be missing something. The
only place special handling of ~ or / seems appropriate in
minibuffer-read-file-name (or whatever) is when it is the FIRST
character typed by the user.
Traditionally electric behavior was not the norm, and it was expected
that, given a prompt "/foo" the user would type "~/bar", resulting in
"/foo/~/bar" being read. Treating "/foo/~/bar" as "~/bar"
in the guts
of read-file-name was a convenience thing so that the user doesn't
have to type `C-a C-k ~/bar" every single time. XEmacs's "electric"
behavior removes the need for the kludge in substitute-file-name, but
I'm not sure if it's really safe to actually do so. Some people might
be turning off the electric behavior, and the kludge has been there
for a long, long time.
7681
days inactive
7688
days old
9 comments
4 participants
participants (4)
-
Adrian Aichner -
bobchan＠webone.com.au -
David A. Cobb -
Hrvoje Niksic