-This is Info file ../info/xemacs-faq.info, produced by Makeinfo version
-1.68 from the input file xemacs-faq.texi.
+This is ../info/xemacs-faq.info, produced by makeinfo version 4.0b from
+xemacs-faq.texi.
INFO-DIR-SECTION XEmacs Editor
START-INFO-DIR-ENTRY
-* FAQ: (xemacs-faq). XEmacs FAQ.
+* FAQ: (xemacs-faq). XEmacs FAQ.
END-INFO-DIR-ENTRY
\1f
-File: xemacs-faq.info, Node: Q3.10.1, Next: Q3.10.2, Prev: Q3.9.4, Up: Customization
-
-3.10: Text Selections
-=====================
-
-Q3.10.1: How can I turn off or change highlighted selections?
--------------------------------------------------------------
-
- The `zmacs' mode allows for what some might call gratuitous
-highlighting for selected regions (either by setting mark or by using
-the mouse). This is the default behavior. To turn off, add the
-following line to your `.emacs' file:
-
- (setq zmacs-regions nil)
-
- Starting with XEmacs-20.2 you can also change this with Customize.
-Select from the `Options' menu `Customize->Emacs->Editing->Basics->Zmacs
-Regions' or type `M-x customize <RET> editing-basics <RET>'.
-
- To change the face for selection, look at `Options->Customize' on
-the menubar.
-
-\1f
-File: xemacs-faq.info, Node: Q3.10.2, Next: Q3.10.3, Prev: Q3.10.1, Up: Customization
-
-Q3.10.2: How do I get that typing on an active region removes it?
------------------------------------------------------------------
-
- I want to change things so that if I select some text and start
-typing, the typed text replaces the selected text, similar to Motif.
-
- You want to use something called "pending delete". Pending delete
-is what happens when you select a region (with the mouse or keyboard)
-and you press a key to replace the selected region by the key you typed.
-Usually backspace kills the selected region.
-
- To get this behavior, add the following line to your `.emacs':
-
- (turn-on-pending-delete)
-
- Note that this will work with both Backspace and Delete.
-
-\1f
-File: xemacs-faq.info, Node: Q3.10.3, Next: Q3.10.4, Prev: Q3.10.2, Up: Customization
-
-Q3.10.3: Can I turn off the highlight during isearch?
------------------------------------------------------
-
- I do not like my text highlighted while I am doing isearch as I am
-not able to see what's underneath. How do I turn it off?
-
- Put the following in your `.emacs':
-
- (setq isearch-highlight nil)
-
- Starting with XEmacs-20.2 you can also change this with Customize.
-Type `M-x customize-variable <RET> isearch-highlight <RET>'.
-
- Note also that isearch-highlight affects query-replace and ispell.
-Instead of disabling isearch-highlight you may find that a better
-solution consists of customizing the `isearch' face.
-
-\1f
-File: xemacs-faq.info, Node: Q3.10.4, Next: Q3.10.5, Prev: Q3.10.3, Up: Customization
-
-Q3.10.4: How do I turn off highlighting after `C-x C-p' (mark-page)?
---------------------------------------------------------------------
-
- Put this in your `.emacs':
-
- (setq zmacs-regions nil)
-
- *Warning: This command turns off all region highlighting.*
-
- Also *Note Q3.10.1::.
-
-\1f
-File: xemacs-faq.info, Node: Q3.10.5, Prev: Q3.10.4, Up: Customization
-
-Q3.10.5: The region disappears when I hit the end of buffer while scrolling.
-----------------------------------------------------------------------------
-
- This has been fixed by default starting with XEmacs-20.3.
-
- With older versions you can turn this feature (if it indeed is a
-feature) off like this:
-
- (defadvice scroll-up (around scroll-up freeze)
- (interactive "_P")
- (let ((zmacs-region-stays t))
- (if (interactive-p)
- (condition-case nil
- ad-do-it
- (end-of-buffer (goto-char (point-max))))
- ad-do-it)))
-
- (defadvice scroll-down (around scroll-down freeze)
- (interactive "_P")
- (let ((zmacs-region-stays t))
- (if (interactive-p)
- (condition-case nil
- ad-do-it
- (beginning-of-buffer (goto-char (point-min))))
- ad-do-it)))
-
- Thanks to T. V. Raman <raman@adobe.com> for assistance in deriving
-this answer.
-
-\1f
-File: xemacs-faq.info, Node: Subsystems, Next: Miscellaneous, Prev: Customization, Up: Top
-
-4 Major Subsystems
-******************
-
- This is part 4 of the XEmacs Frequently Asked Questions list. This
-section is devoted to major XEmacs subsystems.
-
-* Menu:
-
-Reading Mail with VM:
-* Q4.0.1:: How do I set up VM to retrieve remote mail using POP?
-* Q4.0.2:: How do I get VM to filter mail for me?
-* Q4.0.3:: How can I get VM to automatically check for new mail?
-* Q4.0.4:: [This question intentionally left blank]
-* Q4.0.5:: How do I get my outgoing mail archived?
-* Q4.0.6:: I have various addresses at which I receive mail. How can I tell VM to ignore them when doing a "reply-all"?
-* Q4.0.7:: Is there a mailing list or FAQ for VM?
-* Q4.0.8:: Remote mail reading with VM.
-* Q4.0.9:: rmail or VM gets an error incorporating new mail.
-* Q4.0.10:: How do I make VM stay in a single frame?
-* Q4.0.11:: How do I make VM or mh-e display graphical smilies?
-* Q4.0.12:: Customization of VM not covered in the manual or here.
-
-Web browsing with W3:
-* Q4.1.1:: What is W3?
-* Q4.1.2:: How do I run W3 from behind a firewall?
-* Q4.1.3:: Is it true that W3 supports style sheets and tables?
-
-Reading Netnews and Mail with Gnus:
-* Q4.2.1:: GNUS, (ding) Gnus, Gnus 5, September Gnus, Red Gnus,argh!
-* Q4.2.2:: [This question intentionally left blank]
-* Q4.2.3:: How do I make Gnus stay within a single frame?
-* Q4.2.4:: How do I customize the From: line?
-
-Other Mail & News:
-* Q4.3.1:: How can I read and/or compose MIME messages?
-* Q4.3.2:: What is TM and where do I get it?
-* Q4.3.3:: Why isn't this `movemail' program working?
-* Q4.3.4:: Movemail is also distributed by Netscape? Can that cause problems?
-* Q4.3.5:: Where do I find pstogif (required by tm)?
-
-Sparcworks, EOS, and WorkShop:
-* Q4.4.1:: What is SPARCworks, EOS, and WorkShop
-
-Energize:
-* Q4.5.1:: What is/was Energize?
-
-Infodock:
-* Q4.6.1:: What is Infodock?
-
-Other Unbundled Packages:
-* Q4.7.1:: What is AUC TeX? Where do you get it?
-* Q4.7.2:: Are there any Emacs Lisp Spreadsheets?
-* Q4.7.3:: Byte compiling AUC TeX on XEmacs 19.14
-* Q4.7.4:: Problems installing AUC TeX
-* Q4.7.5:: Is there a reason for an Emacs package not to be included in XEmacs?
-* Q4.7.6:: Is there a MatLab mode?
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.1, Next: Q4.0.2, Prev: Subsystems, Up: Subsystems
-
-4.0: Reading Mail with VM
-=========================
-
-Q4.0.1: How do I set up VM to retrieve mail from a remote site using POP?
--------------------------------------------------------------------------
-
- Use `vm-spool-files', like this for example:
-
- (setq vm-spool-files '("/var/spool/mail/wing"
- "netcom23.netcom.com:110:pass:wing:MYPASS"))
-
- Of course substitute your actual password for MYPASS.
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.2, Next: Q4.0.3, Prev: Q4.0.1, Up: Subsystems
-
-Q4.0.2: How do I get VM to filter mail for me?
-----------------------------------------------
-
- One possibility is to use procmail to split your mail before it gets
-to VM. I prefer this personally, since there are many strange and
-wonderful things one can do with procmail. Procmail may be found at
-`ftp://ftp.informatik.rwth-aachen.de/pub/packages/procmail/'.
-
- Also see the Mail Filtering FAQ at:
-`ftp://rtfm.mit.edu/pub/usenet/news.answers/mail/filtering-faq'.
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.3, Next: Q4.0.4, Prev: Q4.0.2, Up: Subsystems
-
-Q4.0.3: How can I get VM to automatically check for new mail?
--------------------------------------------------------------
-
- John Turner <turner@lanl.gov> writes:
-
- Use the following:
-
- (setq vm-auto-get-new-mail 60)
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.4, Next: Q4.0.5, Prev: Q4.0.3, Up: Subsystems
-
-Q4.0.4: [This question intentionally left blank]
-------------------------------------------------
-
- Obsolete question, left blank to avoid renumbering.
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.5, Next: Q4.0.6, Prev: Q4.0.4, Up: Subsystems
-
-Q4.0.5: How do I get my outgoing mail archived?
------------------------------------------------
-
- (setq mail-archive-file-name "~/outbox")
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.6, Next: Q4.0.7, Prev: Q4.0.5, Up: Subsystems
-
-Q4.0.6: I have various addresses at which I receive mail. How can I tell VM to ignore them when doing a "reply-all"?
----------------------------------------------------------------------------------------------------------------------
-
- Set `vm-reply-ignored-addresses' to a list, like
-
- (setq vm-reply-ignored-addresses
- '("wing@nuspl@nvwls.cc.purdue.edu,netcom[0-9]*.netcom.com"
- "wing@netcom.com" "wing@666.com"))
-
- Note that each string is a regular expression.
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.7, Next: Q4.0.8, Prev: Q4.0.6, Up: Subsystems
-
-Q4.0.7: Is there a mailing list or FAQ for VM?
-----------------------------------------------
-
- A FAQ for VM exists at `http://www.cyberpass.net/~gorkab/vmfaq.htm'.
-
- VM has its own newsgroups gnu.emacs.vm.info and gnu.emacs.vm.bug.
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.8, Next: Q4.0.9, Prev: Q4.0.7, Up: Subsystems
-
-Q4.0.8: Remote mail reading with VM.
-------------------------------------
-
- My mailbox lives at the office on a big honkin server. My regular
-INBOX lives on my honkin desktop machine. I now can PPP to the office
-from home which is far from honking... I'd like to be able to read
-mail at home without storing it here and I'd like to use xemacs and VM
-at home... Is there a recommended setup?
-
- Joseph J. Nuspl Jr. <nuspl@nvwls.cc.purdue.edu> writes:
-
- There are several ways to do this.
-
- 1. Set your display to your home machine and run dxpc or one of
- the other X compressors.
-
- 2. NFS mount your desktop machine on your home machine and
- modify your pop command on your home machine to rsh to your
- desktop machine and actually do the pop get's.
-
- 3. Run a POP server on your desktop machine as well and do a
- sort of two tiered POP get.
-
- William Perry <wmperry@monolith.spry.com> adds:
-
- Or you could run a pop script periodically on your desktop
- machine, and just use ange-ftp or NFS to get to your mailbox. I
- used to do this all the time back at IU.
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.9, Next: Q4.0.10, Prev: Q4.0.8, Up: Subsystems
-
-Q4.0.9: rmail or VM gets an error incorporating new mail.
----------------------------------------------------------
-
- Quoting the XEmacs PROBLEMS file:
-
- rmail and VM get new mail from `/usr/spool/mail/$USER' using a
- program called `movemail'. This program interlocks with
- `/bin/mail' using the protocol defined by `/bin/mail'.
-
- There are two different protocols in general use. One of them
- uses the `flock' system call. The other involves creating a lock
- file; `movemail' must be able to write in `/usr/spool/mail' in
- order to do this. You control which one is used by defining, or
- not defining, the macro `MAIL_USE_FLOCK' in `config.h' or the m-
- or s- file it includes.
-
- *IF YOU DON'T USE THE FORM OF INTERLOCKING THAT IS NORMAL ON YOUR
- SYSTEM, YOU CAN LOSE MAIL!*
-
- If your system uses the lock file protocol, and fascist
- restrictions prevent ordinary users from writing the lock files in
- `/usr/spool/mail', you may need to make `movemail' setgid to a
- suitable group such as `mail'. You can use these commands (as
- root):
-
- chgrp mail movemail
- chmod 2755 movemail
-
- If your system uses the lock file protocol, and fascist
- restrictions prevent ordinary users from writing the lock files in
- `/usr/spool/mail', you may need to make `movemail' setgid to a
- suitable group such as `mail'. To do this, use the following
- commands (as root) after doing the make install.
-
- chgrp mail movemail
- chmod 2755 movemail
-
- Installation normally copies movemail from the build directory to
- an installation directory which is usually under `/usr/local/lib'.
- The installed copy of `movemail' is usually in the directory
- `/usr/local/lib/emacs/VERSION/TARGET'. You must change the group
- and mode of the installed copy; changing the group and mode of the
- build directory copy is ineffective.
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.10, Next: Q4.0.11, Prev: Q4.0.9, Up: Subsystems
-
-Q4.0.10: How do I make VM stay in a single frame?
--------------------------------------------------
-
- John.John S Cooper <Cooper@Eng.Sun.COM> writes:
-
- ; Don't use multiple frames
- (setq vm-frame-per-composition nil)
- (setq vm-frame-per-folder nil)
- (setq vm-frame-per-edit nil)
- (setq vm-frame-per-summary nil)
-
-\1f
-File: xemacs-faq.info, Node: Q4.0.11, Next: Q4.0.12, Prev: Q4.0.10, Up: Subsystems
-
-Q4.0.11: How do I make VM or mh-e display graphical smilies?
-------------------------------------------------------------
-
- For mh-e use the following:
-
- (add-hook 'mh-show-mode-hook '(lambda ()
- (smiley-region (point-min)
- (point-max))))
-
- WJCarpenter <bill@carpenter.ORG> writes: For VM use the following:
- (autoload 'smiley-region "smiley" nil t)
- (add-hook 'vm-select-message-hook
- '(lambda ()
- (smiley-region (point-min)
- (point-max))))
-
- For tm use the following:
- (autoload 'smiley-buffer "smiley" nil t)
- (add-hook 'mime-viewer/plain-text-preview-hook 'smiley-buffer)
-
-\1f
File: xemacs-faq.info, Node: Q4.0.12, Next: Q4.1.1, Prev: Q4.0.11, Up: Subsystems
Q4.0.12: Customization of VM not covered in the manual, or here.
directory of the lisp library.
`vm-vars.el' contains, initializes and carefully describes, with
- examples of usage, the plethora of user options that *fully*
+ examples of usage, the plethora of user options that _fully_
control VM's behavior.
Enter vm-vars, `forward-search' for toolbar, find the variables
--------------------------------------------------------------------------------
The Gnus numbering issues are not meant for mere mortals to know
-them. If you feel you *must* enter the muddy waters of Gnus, visit the
+them. If you feel you _must_ enter the muddy waters of Gnus, visit the
excellent FAQ, maintained by Justin Sheehy, at:
`http://www.ccs.neu.edu/software/contrib/gnus/'
* MIME extenders for mh-e, GNUS, RMAIL and VM.
tm is available from following anonymous ftp sites:
- * `ftp://ftp.jaist.ac.jp/pub/GNU/elisp/mime/' (Japan).
-
- * `ftp://ftp.nis.co.jp/pub/gnu/emacs-lisp/tm/' (Japan).
-
- * `ftp://ftp.nisiq.net/pub/gnu/emacs-lisp/tm/' (US).
-
- * `ftp://ftp.miranova.com/pub/gnus/jaist.ac.jp/' (US).
-
* `ftp://ftp.unicamp.br/pub/mail/mime/tm/' (Brasil).
* `ftp://ftp.th-darmstadt.de/pub/editors/GNU-Emacs/lisp/mime/'
Q4.3.3: Why isn't this `movemail' program working?
--------------------------------------------------
- Ben Wing <ben@666.com> writes:
+ Ben Wing <ben@xemacs.org> writes:
It wasn't chown'ed/chmod'd correctly.
Q4.3.4: Movemail is also distributed by Netscape? Can that cause problems?
---------------------------------------------------------------------------
- Steve Baur <steve@altair.xemacs.org> writes:
+ Steve Baur <steve@xemacs.org> writes:
Yes. Always use the movemail installed with your XEmacs. Failure
to do so can result in lost mail.
- Please refer to Jamie Zawinski's <jwz@netscape.com> notes at
+ Please refer to Jamie Zawinski's <jwz@jwz.org> notes at
`http://home.netscape.com/eng/mozilla/2.0/relnotes/demo/movemail.html'.
In particular, this document will show you how to make Netscape use the
version of movemail configured for your system by the person who built
`ftp://ftp.cdrom.com/pub/tex/ctan/support/latex2html/'.
\1f
-File: xemacs-faq.info, Node: Q4.4.1, Next: Q4.5.1, Prev: Q4.3.5, Up: Subsystems
+File: xemacs-faq.info, Node: Q4.4.1, Next: Q4.4.2, Prev: Q4.3.5, Up: Subsystems
4.4: Sparcworks, EOS, and WorkShop
==================================
EOS is being replaced with a new graphical development environment
called Sun WorkShop, which is currently (07/96) in Alpha Test.
For more details, check out
+ `http://www.sun.com/software/Products/Developer-products'.
+\1f
+File: xemacs-faq.info, Node: Q4.4.2, Next: Q4.5.1, Prev: Q4.4.1, Up: Subsystems
+Q4.4.2: How do I start the Sun Workshop support in XEmacs 21?
+-------------------------------------------------------------
-
-
-
-
- `http://www.sun.com/software/Products/Developer-products/programs.html'.
+ Add the switch --with-workshop to the configure command when building
+XEmacs and put the following in one of your startup files (e.g.
+site-start.el or .emacs):
+
+ (when (featurep 'tooltalk)
+ (load "tooltalk-macros")
+ (load "tooltalk-util")
+ (load "tooltalk-init"))
+ (when (featurep 'sparcworks)
+ (load "sunpro-init")
+ (load "ring")
+ (load "comint")
+ (load "annotations")
+ (sunpro-startup))
+
+ If you are not using the latest Workshop (5.0) you have to apply the
+following patch:
+
+--- /opt/SUNWspro/lib/eserve.el.ORIG Fri May 14 15:23:26 1999
++++ /opt/SUNWspro/lib/eserve.el Fri May 14 15:24:54 1999
+@@ -42,7 +42,7 @@
+ (defvar running-xemacs nil "t if we're running XEmacs")
+ (defvar running-emacs nil "t if we're running GNU Emacs 19")
+
+-(if (string-match "^\\(19\\|20\\)\..*\\(XEmacs\\|Lucid\\)" emacs-version)
++(if (string-match "\\(XEmacs\\|Lucid\\)" emacs-version)
+ (setq running-xemacs t)
+ (setq running-emacs t))
\1f
-File: xemacs-faq.info, Node: Q4.5.1, Next: Q4.6.1, Prev: Q4.4.1, Up: Subsystems
+File: xemacs-faq.info, Node: Q4.5.1, Next: Q4.6.1, Prev: Q4.4.2, Up: Subsystems
4.5: Energize
=============
\1f
File: xemacs-faq.info, Node: Q4.7.3, Next: Q4.7.4, Prev: Q4.7.2, Up: Subsystems
-Q4.7.3: Byte compiling AUC TeX on XEmacs 19.14.
------------------------------------------------
-
- Georges Brun-Cottan <bruncott@dormeur.inria.fr> writes:
-
- When byte compiling auctex-9.4g, you must use the command:
-
- xemacs -batch -l lpath.el
+Q4.7.3: [This question intentionally left blank]
+------------------------------------------------
\1f
File: xemacs-faq.info, Node: Q4.7.4, Next: Q4.7.5, Prev: Q4.7.3, Up: Subsystems
Each package bundled with XEmacs means more work for the
maintainers, whether they want it or not. If you are ready to
take over the maintenance responsibilities for the package you
- port, be sure to say so - we will more likely include it.
+ port, be sure to say so--we will more likely include it.
3. The package simply hasn't been noted by the XEmacs development. If
that's the case, the messages like yours are very useful for
Q4.7.5: Is there a MatLab mode?
-------------------------------
- Is there any way I can get syntax highlighting for MatLab .m files?
-Can I "teach" emacs what words are MatLab commands, comments, etc. ?
-
- Ulrich Elsner <elsner@mathematik.tu-chemnitz.de> writes:
- One way to do this (and much more) is by using the
- matlab mode
- (ftp://ftp.mathworks.com/pub/contrib/v5/tools/matlab.el).
-
- Instructions on how to install this mode are included in this file.
+ Yes, a matlab mode and other items are available at the MathWorks'
+emacs_add_ons ftp directory
+(ftp://ftp.mathworks.com/pub/contrib/emacs_add_ons).
\1f
-File: xemacs-faq.info, Node: Miscellaneous, Next: Current Events, Prev: Subsystems, Up: Top
+File: xemacs-faq.info, Node: Miscellaneous, Next: MS Windows, Prev: Subsystems, Up: Top
5 The Miscellaneous Stuff
*************************
* Q5.0.8:: Why does edt emulation not work?
* Q5.0.9:: How can I emulate VI and use it as my default mode?
* Q5.0.10:: [This question intentionally left blank]
-* Q5.0.11:: Filladapt doesn't work in 19.15?
+* Q5.0.11:: How do I turn on filladapt for all buffers?
* Q5.0.12:: How do I disable gnuserv from opening a new frame?
* Q5.0.13:: How do I start gnuserv so that each subsequent XEmacs is a client?
* Q5.0.14:: Strange things are happening in Shell Mode.
* Q5.0.15:: Where do I get the latest CC Mode?
* Q5.0.16:: I find auto-show-mode disconcerting. How do I turn it off?
* Q5.0.17:: How can I get two instances of info?
-* Q5.0.18:: I upgraded to XEmacs 19.14 and gnuserv stopped working
+* Q5.0.18:: [This question intentionally left blank]
* Q5.0.19:: Is there something better than LaTeX mode?
* Q5.0.20:: Is there a way to start a new XEmacs if there's no gnuserv running, and otherwise use gnuclient?
* Q5.1.4:: What is the performance hit of `let'?
* Q5.1.5:: What is the recommended use of `setq'?
* Q5.1.6:: What is the typical misuse of `setq'?
-* Q5.1.7:: I like the the `do' form of cl, does it slow things down?
+* Q5.1.7:: I like the `do' form of cl, does it slow things down?
* Q5.1.8:: I like recursion, does it slow things down?
* Q5.1.9:: How do I put a glyph as annotation in a buffer?
* Q5.1.10:: `map-extents' won't traverse all of my extents!
* Q5.3.1:: How do you make XEmacs indent CL if-clauses correctly?
* Q5.3.2:: Fontifying hangs when editing a postscript file.
* Q5.3.3:: How can I print WYSIWYG a font-locked buffer?
-* Q5.3.4:: Getting `M-x lpr' to work with postscript printer.
+* Q5.3.4:: Getting M-x lpr to work with postscript printer.
* Q5.3.5:: How do I specify the paths that XEmacs uses for finding files?
* Q5.3.6:: [This question intentionally left blank]
* Q5.3.7:: Can I have the end of the buffer delimited in some way?
turned on. This can be done by `M-x font-lock-mode', or by having
XEmacs automatically start it by adding lines like:
- (add-hook 'emacs-lisp-mode-hook 'turn-on-font-lock)
- (add-hook 'dired-mode-hook 'turn-on-font-lock)
+ (add-hook 'emacs-lisp-mode-hook 'turn-on-font-lock)
+ (add-hook 'dired-mode-hook 'turn-on-font-lock)
to your `.emacs'. See the file `etc/sample.emacs' for more examples.
You can customize filling and adaptive filling with Customize.
Select from the `Options' menu
-`Customize->Emacs->->Editing->Fill->Fill...' or type `M-x customize
+`Customize->Emacs->->Editing->Fill->Fill...' or type `M-x customize
<RET> fill <RET>'.
Note that well-behaving text-lookalike modes will run
\1f
File: xemacs-faq.info, Node: Q5.0.11, Next: Q5.0.12, Prev: Q5.0.10, Up: Miscellaneous
-Q5.0.11: Filladapt doesn't work in 19.15
-----------------------------------------
+Q5.0.11: How do I turn on filladapt for all buffers?
+----------------------------------------------------
- Filladapt 2.x is included in 19.15. In it filladapt is now a minor
-mode and minor modes are traditionally off by default. The following
-added to your `.emacs' will turn it on for all buffers:
+ Filladapt is a minor mode and minor modes are traditionally off by
+default. The following added to your `.emacs' will turn it on for all
+buffers:
(setq-default filladapt-mode t)
Barry A. Warsaw <bwarsaw@cnri.reston.va.us> writes:
- This can be had from `http://www.python.org/ftp/emacs/'.
+ This can be had from `http://www.python.org/emacs/'.
\1f
File: xemacs-faq.info, Node: Q5.0.16, Next: Q5.0.17, Prev: Q5.0.15, Up: Miscellaneous
\1f
File: xemacs-faq.info, Node: Q5.0.18, Next: Q5.0.19, Prev: Q5.0.17, Up: Miscellaneous
-Q5.0.18: I upgraded to XEmacs 19.14 and gnuserv stopped working.
-----------------------------------------------------------------
-
- Mark Daku <daku@nortel.ca> writes:
-
- It turns out I was using an older version of gnuserv. The
- installation didn't put the binary into the public bin directory.
- It put it in `lib/xemacs-19.14/hppa1.1-hp-hpux9.05/gnuserv'.
- Shouldn't it have been put in `bin/hppa1.1-hp-hpux9.0'?
+Q5.0.18: [This question intentionally left blank]
+-------------------------------------------------
\1f
File: xemacs-faq.info, Node: Q5.0.19, Next: Q5.0.20, Prev: Q5.0.18, Up: Miscellaneous
The standard TeX modes leave much to be desired, and are somewhat
leniently maintained. Serious TeX users use AUC TeX (*note
- Q4.7.1::.).
+ Q4.7.1::).
+
+\1f
+File: xemacs-faq.info, Node: Q5.0.20, Next: Q5.1.1, Prev: Q5.0.19, Up: Miscellaneous
+
+Q5.0.20: Is there a way to start a new XEmacs if there's no gnuserv running, and otherwise use gnuclient?
+---------------------------------------------------------------------------------------------------------
+
+ Jan Vroonhof <vroonhof@math.ethz.ch> writes:
+ Here is one of the solutions, we have this in a script called
+ `etc/editclient.sh'.
+ #!/bin/sh
+ if gnuclient -batch -eval t >/dev/null 2>&1
+ then
+ exec gnuclient ${1+"$@"}
+ else
+ xemacs -unmapped -f gnuserv-start &
+ until gnuclient -batch -eval t >/dev/null 2>&1
+ do
+ sleep 1
+ done
+ exec gnuclient ${1+"$@"}
+ fi
+
+ Note that there is a known problem when running XEmacs and
+ 'gnuclient -nw' on the same TTY.
+
+\1f
+File: xemacs-faq.info, Node: Q5.1.1, Next: Q5.1.2, Prev: Q5.0.20, Up: Miscellaneous
+
+5.1: Emacs Lisp Programming Techniques
+======================================
+
+Q5.1.1: What is the difference in key sequences between XEmacs and GNU Emacs?
+-----------------------------------------------------------------------------
+
+ Erik Naggum <clerik@naggum.no> writes;
+
+ Emacs has a legacy of keyboards that produced characters with
+ modifier bits, and therefore map a variety of input systems into
+ this scheme even today. XEmacs is instead optimized for X events.
+ This causes an incompatibility in the way key sequences are
+ specified, but both Emacs and XEmacs will accept a key sequence as
+ a vector of lists of modifiers that ends with a key, e.g., to bind
+ `M-C-a', you would say `[(meta control a)]' in both Emacsen.
+ XEmacs has an abbreviated form for a single key, just (meta
+ control a). Emacs has an abbreviated form for the Control and the
+ Meta modifiers to string-characters (the ASCII characters), as in
+ `\M-\C-a'. XEmacs users need to be aware that the abbreviated
+ form works only for one-character key sequences, while Emacs users
+ need to be aware that the string-character is rather limited.
+ Specifically, the string-character can accommodate only 256
+ different values, 128 of which have the Meta modifier and 128 of
+ which have not. In each of these blocks, only 32 characters have
+ the Control modifier. Whereas `[(meta control A)]' differs from
+ `[(meta control a)]' because the case differs, `\M-\C-a' and
+ `\M-\C-A' do not. Programmers are advised to use the full common
+ form, both because it is more readable and less error-prone, and
+ because it is supported by both Emacsen.
+
+ Another (even safer) way to be sure of the key-sequences is to use
+the `read-kbd-macro' function, which takes a string like `C-c <up>',
+and converts it to the internal key representation of the Emacs you
+use. The function is available both on XEmacs and GNU Emacs.
+
+\1f
+File: xemacs-faq.info, Node: Q5.1.2, Next: Q5.1.3, Prev: Q5.1.1, Up: Miscellaneous
+
+Q5.1.2: Can I generate "fake" keyboard events?
+----------------------------------------------
+
+ I wonder if there is an interactive function that can generate
+"fake" keyboard events. This way, I could simply map them inside
+XEmacs.
+
+ This seems to work:
+
+ (defun cg--generate-char-event (ch)
+ "Generate an event, as if ch has been typed"
+ (dispatch-event (character-to-event ch)))
+
+ ;; Backspace and Delete stuff
+ (global-set-key [backspace]
+ (lambda () (interactive) (cg--generate-char-event 127)))
+ (global-set-key [unknown_keysym_0x4]
+ (lambda () (interactive) (cg--generate-char-event 4)))
+
+\1f
+File: xemacs-faq.info, Node: Q5.1.3, Next: Q5.1.4, Prev: Q5.1.2, Up: Miscellaneous
+
+Q5.1.3: Could you explain `read-kbd-macro' in more detail?
+----------------------------------------------------------
+
+ The `read-kbd-macro' function returns the internal Emacs
+representation of a human-readable string (which is its argument).
+Thus:
+
+ (read-kbd-macro "C-c C-a")
+ => [(control ?c) (control ?a)]
+
+ (read-kbd-macro "C-c C-. <up>")
+ => [(control ?c) (control ?.) up]
+
+ In GNU Emacs the same forms will be evaluated to what GNU Emacs
+understands internally--the sequences `"\C-x\C-c"' and `[3 67108910
+up]', respectively.
+
+ The exact "human-readable" syntax is defined in the docstring of
+`edmacro-mode'. I'll repeat it here, for completeness.
+
+ Format of keyboard macros during editing:
+
+ Text is divided into "words" separated by whitespace. Except for
+ the words described below, the characters of each word go directly
+ as characters of the macro. The whitespace that separates words is
+ ignored. Whitespace in the macro must be written explicitly, as in
+ `foo <SPC> bar <RET>'.
+
+ * The special words `RET', `SPC', `TAB', `DEL', `LFD', `ESC',
+ and `NUL' represent special control characters. The words
+ must be written in uppercase.
+
+ * A word in angle brackets, e.g., `<return>', `<down>', or
+ `<f1>', represents a function key. (Note that in the standard
+ configuration, the function key `<return>' and the control key
+ <RET> are synonymous.) You can use angle brackets on the
+ words <RET>, <SPC>, etc., but they are not required there.
+
+ * Keys can be written by their ASCII code, using a backslash
+ followed by up to six octal digits. This is the only way to
+ represent keys with codes above \377.
+
+ * One or more prefixes `M-' (meta), `C-' (control), `S-'
+ (shift), `A-' (alt), `H-' (hyper), and `s-' (super) may
+ precede a character or key notation. For function keys, the
+ prefixes may go inside or outside of the brackets: `C-<down>'
+ == `<C-down>'. The prefixes may be written in any order:
+ `M-C-x' == `C-M-x'.
+
+ Prefixes are not allowed on multi-key words, e.g., `C-abc',
+ except that the Meta prefix is allowed on a sequence of
+ digits and optional minus sign: `M--123' == `M-- M-1 M-2 M-3'.
+
+ * The `^' notation for control characters also works: `^M' ==
+ `C-m'.
+
+ * Double angle brackets enclose command names: `<<next-line>>'
+ is shorthand for `M-x next-line <RET>'.
+
+ * Finally, `REM' or `;;' causes the rest of the line to be
+ ignored as a comment.
+
+ Any word may be prefixed by a multiplier in the form of a decimal
+ number and `*': `3*<right>' == `<right> <right> <right>', and
+ `10*foo' == `foofoofoofoofoofoofoofoofoofoo'.
+
+ Multiple text keys can normally be strung together to form a word,
+ but you may need to add whitespace if the word would look like one
+ of the above notations: `; ; ;' is a keyboard macro with three
+ semicolons, but `;;;' is a comment. Likewise, `\ 1 2 3' is four
+ keys but `\123' is a single key written in octal, and `< right >'
+ is seven keys but `<right>' is a single function key. When in
+ doubt, use whitespace.
+
+\1f
+File: xemacs-faq.info, Node: Q5.1.4, Next: Q5.1.5, Prev: Q5.1.3, Up: Miscellaneous
+
+Q5.1.4: What is the performance hit of `let'?
+---------------------------------------------
+
+ In most cases, not noticeable. Besides, there's no avoiding
+`let'--you have to bind your local variables, after all. Some pose a
+question whether to nest `let's, or use one `let' per function. I
+think because of clarity and maintenance (and possible future
+implementation), `let'-s should be used (nested) in a way to provide
+the clearest code.
+
+\1f
+File: xemacs-faq.info, Node: Q5.1.5, Next: Q5.1.6, Prev: Q5.1.4, Up: Miscellaneous
+
+Q5.1.5: What is the recommended use of `setq'?
+----------------------------------------------
+
+ * Global variables
+
+ You will typically `defvar' your global variable to a default
+ value, and use `setq' to set it later.
+
+ It is never a good practice to `setq' user variables (like
+ `case-fold-search', etc.), as it ignores the user's choice
+ unconditionally. Note that `defvar' doesn't change the value of a
+ variable if it was bound previously. If you wish to change a
+ user-variable temporarily, use `let':
+
+ (let ((case-fold-search nil))
+ ... ; code with searches that must be case-sensitive
+ ...)
+
+ You will notice the user-variables by their docstrings beginning
+ with an asterisk (a convention).
+
+ * Local variables
+
+ Bind them with `let', which will unbind them (or restore their
+ previous value, if they were bound) after exiting from the `let'
+ form. Change the value of local variables with `setq' or whatever
+ you like (e.g. `incf', `setf' and such). The `let' form can even
+ return one of its local variables.
+
+ Typical usage:
+
+ ;; iterate through the elements of the list returned by
+ ;; `hairy-function-that-returns-list'
+ (let ((l (hairy-function-that-returns-list)))
+ (while l
+ ... do something with (car l) ...
+ (setq l (cdr l))))
+
+ Another typical usage includes building a value simply to work
+ with it.
+
+ ;; Build the mode keymap out of the key-translation-alist
+ (let ((inbox (file-truename (expand-file-name box)))
+ (i 0))
+ ... code dealing with inbox ...
+ inbox)
+
+ This piece of code uses the local variable `inbox', which becomes
+ unbound (or regains old value) after exiting the form. The form
+ also returns the value of `inbox', which can be reused, for
+ instance:
+
+ (setq foo-processed-inbox
+ (let .....))
+
+\1f
+File: xemacs-faq.info, Node: Q5.1.6, Next: Q5.1.7, Prev: Q5.1.5, Up: Miscellaneous
+
+Q5.1.6: What is the typical misuse of `setq' ?
+----------------------------------------------
+
+ A typical misuse is probably `setq'ing a variable that was meant to
+be local. Such a variable will remain bound forever, never to be
+garbage-collected. For example, the code doing:
+
+ (defun my-function (whatever)
+ (setq a nil)
+ ... build a large list ...
+ ... and exit ...)
+
+ does a bad thing, as `a' will keep consuming memory, never to be
+unbound. The correct thing is to do it like this:
+
+ (defun my-function (whatever)
+ (let (a) ; default initialization is to nil
+ ... build a large list ...
+ ... and exit, unbinding `a' in the process ...)
+
+ Not only is this prettier syntactically, but it makes it possible for
+Emacs to garbage-collect the objects which `a' used to reference.
+
+ Note that even global variables should not be `setq'ed without
+`defvar'ing them first, because the byte-compiler issues warnings. The
+reason for the warning is the following:
+
+ (defun flurgoze nil) ; ok, global internal variable
+ ...
+
+ (setq flurghoze t) ; ops! a typo, but semantically correct.
+ ; however, the byte-compiler warns.
+
+ While compiling toplevel forms:
+ ** assignment to free variable flurghoze
+
+\1f
+File: xemacs-faq.info, Node: Q5.1.7, Next: Q5.1.8, Prev: Q5.1.6, Up: Miscellaneous
+
+Q5.1.7: I like the `do' form of cl, does it slow things down?
+-------------------------------------------------------------
+
+ It shouldn't. Here is what Dave Gillespie has to say about cl.el
+performance:
+
+ Many of the advanced features of this package, such as `defun*',
+ `loop', and `setf', are implemented as Lisp macros. In
+ byte-compiled code, these complex notations will be expanded into
+ equivalent Lisp code which is simple and efficient. For example,
+ the forms
+
+ (incf i n)
+ (push x (car p))
+
+ are expanded at compile-time to the Lisp forms
+
+ (setq i (+ i n))
+ (setcar p (cons x (car p)))
+
+ which are the most efficient ways of doing these respective
+ operations in Lisp. Thus, there is no performance penalty for
+ using the more readable `incf' and `push' forms in your compiled
+ code.
+
+ _Interpreted_ code, on the other hand, must expand these macros
+ every time they are executed. For this reason it is strongly
+ recommended that code making heavy use of macros be compiled. (The
+ features labelled "Special Form" instead of "Function" in this
+ manual are macros.) A loop using `incf' a hundred times will
+ execute considerably faster if compiled, and will also
+ garbage-collect less because the macro expansion will not have to
+ be generated, used, and thrown away a hundred times.
+
+ You can find out how a macro expands by using the `cl-prettyexpand'
+ function.
+
+\1f
+File: xemacs-faq.info, Node: Q5.1.8, Next: Q5.1.9, Prev: Q5.1.7, Up: Miscellaneous
+
+Q5.1.8: I like recursion, does it slow things down?
+---------------------------------------------------
+
+ Yes. Emacs byte-compiler cannot do much to optimize recursion. But
+think well whether this is a real concern in Emacs. Much of the Emacs
+slowness comes from internal mechanisms such as redisplay, or from the
+fact that it is an interpreter.
+
+ Please try not to make your code much uglier to gain a very small
+speed gain. It's not usually worth it.
projects / chise / xemacs-chise.git / blobdiff