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This is Info file ../../info/lispref.info, produced by Makeinfo version
1.68 from the input file lispref.texi.

INFO-DIR-SECTION XEmacs Editor
START-INFO-DIR-ENTRY
* Lispref: (lispref).           XEmacs Lisp Reference Manual.
END-INFO-DIR-ENTRY

   Edition History:

   GNU Emacs Lisp Reference Manual Second Edition (v2.01), May 1993 GNU
Emacs Lisp Reference Manual Further Revised (v2.02), August 1993 Lucid
Emacs Lisp Reference Manual (for 19.10) First Edition, March 1994
XEmacs Lisp Programmer's Manual (for 19.12) Second Edition, April 1995
GNU Emacs Lisp Reference Manual v2.4, June 1995 XEmacs Lisp
Programmer's Manual (for 19.13) Third Edition, July 1995 XEmacs Lisp
Reference Manual (for 19.14 and 20.0) v3.1, March 1996 XEmacs Lisp
Reference Manual (for 19.15 and 20.1, 20.2, 20.3) v3.2, April, May,
November 1997 XEmacs Lisp Reference Manual (for 21.0) v3.3, April 1998

   Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995 Free Software
Foundation, Inc.  Copyright (C) 1994, 1995 Sun Microsystems, Inc.
Copyright (C) 1995, 1996 Ben Wing.

   Permission is granted to make and distribute verbatim copies of this
manual provided the copyright notice and this permission notice are
preserved on all copies.

   Permission is granted to copy and distribute modified versions of
this manual under the conditions for verbatim copying, provided that the
entire resulting derived work is distributed under the terms of a
permission notice identical to this one.

   Permission is granted to copy and distribute translations of this
manual into another language, under the above conditions for modified
versions, except that this permission notice may be stated in a
translation approved by the Foundation.

   Permission is granted to copy and distribute modified versions of
this manual under the conditions for verbatim copying, provided also
that the section entitled "GNU General Public License" is included
exactly as in the original, and provided that the entire resulting
derived work is distributed under the terms of a permission notice
identical to this one.

   Permission is granted to copy and distribute translations of this
manual into another language, under the above conditions for modified
versions, except that the section entitled "GNU General Public License"
may be included in a translation approved by the Free Software
Foundation instead of in the original English.

\1f
File: lispref.info,  Node: Building XEmacs,  Next: Pure Storage,  Up: Building XEmacs and Object Allocation

Building XEmacs
===============

   This section explains the steps involved in building the XEmacs
executable.  You don't have to know this material to build and install
XEmacs, since the makefiles do all these things automatically.  This
information is pertinent to XEmacs maintenance.

   The `XEmacs Internals Manual' contains more information about this.

   Compilation of the C source files in the `src' directory produces an
executable file called `temacs', also called a "bare impure XEmacs".
It contains the XEmacs Lisp interpreter and I/O routines, but not the
editing commands.

   Before XEmacs is actually usable, a number of Lisp files need to be
loaded.  These define all the editing commands, plus most of the startup
code and many very basic Lisp primitives.  This is accomplished by
loading the file `loadup.el', which in turn loads all of the other
standardly-loaded Lisp files.

   It takes a substantial time to load the standard Lisp files.
Luckily, you don't have to do this each time you run XEmacs; `temacs'
can dump out an executable program called `xemacs' that has these files
preloaded.  `xemacs' starts more quickly because it does not need to
load the files.  This is the XEmacs executable that is normally
installed.

   To create `xemacs', use the command `temacs -batch -l loadup dump'.
The purpose of `-batch' here is to tell `temacs' to run in
non-interactive, command-line mode. (`temacs' can *only* run in this
fashion.  Part of the code required to initialize frames and faces is
in Lisp, and must be loaded before XEmacs is able to create any frames.)
The argument `dump' tells `loadup.el' to dump a new executable named
`xemacs'.

   The dumping process is highly system-specific, and some operating
systems don't support dumping.  On those systems, you must start XEmacs
with the `temacs -batch -l loadup run-temacs' command each time you use
it.  This takes a substantial time, but since you need to start Emacs
once a day at most--or once a week if you never log out--the extra time
is not too severe a problem. (In older versions of Emacs, you started
Emacs from `temacs' using `temacs -l loadup'.)

   You are free to start XEmacs directly from `temacs' if you want,
even if there is already a dumped `xemacs'.  Normally you wouldn't want
to do that; but the Makefiles do this when you rebuild XEmacs using
`make all-elc', which builds XEmacs and simultaneously compiles any
out-of-date Lisp files. (You need `xemacs' in order to compile Lisp
files.  However, you also need the compiled Lisp files in order to dump
out `xemacs'.  If both of these are missing or corrupted, you are out
of luck unless you're able to bootstrap `xemacs' from `temacs'.  Note
that `make all-elc' actually loads the alternative loadup file
`loadup-el.el', which works like `loadup.el' but disables the
pure-copying process and forces XEmacs to ignore any compiled Lisp
files even if they exist.)

   You can specify additional files to preload by writing a library
named `site-load.el' that loads them.  You may need to increase the
value of `PURESIZE', in `src/puresize.h', to make room for the
additional files.  You should *not* modify this file directly, however;
instead, use the `--puresize' configuration option. (If you run out of
pure space while dumping `xemacs', you will be told how much pure space
you actually will need.) However, the advantage of preloading
additional files decreases as machines get faster.  On modern machines,
it is often not advisable, especially if the Lisp code is on a file
system local to the machine running XEmacs.

   You can specify other Lisp expressions to execute just before dumping
by putting them in a library named `site-init.el'.  However, if they
might alter the behavior that users expect from an ordinary unmodified
XEmacs, it is better to put them in `default.el', so that users can
override them if they wish.  *Note Start-up Summary::.

   Before `loadup.el' dumps the new executable, it finds the
documentation strings for primitive and preloaded functions (and
variables) in the file where they are stored, by calling
`Snarf-documentation' (*note Accessing Documentation::.).  These
strings were moved out of the `xemacs' executable to make it smaller.
*Note Documentation Basics::.

 - Function: dump-emacs TO-FILE FROM-FILE
     This function dumps the current state of XEmacs into an executable
     file TO-FILE.  It takes symbols from FROM-FILE (this is normally
     the executable file `temacs').

     If you use this function in an XEmacs that was already dumped, you
     must set `command-line-processed' to `nil' first for good results.
     *Note Command Line Arguments::.

 - Function: run-emacs-from-temacs &rest ARGS
     This is the function that implements the `run-temacs' command-line
     argument.  It is called from `loadup.el' as appropriate.  You
     should most emphatically *not* call this yourself; it will
     reinitialize your XEmacs process and you'll be sorry.

 - Command: emacs-version
     This function returns a string describing the version of XEmacs
     that is running.  It is useful to include this string in bug
     reports.

          (emacs-version)
            => "XEmacs 20.1 [Lucid] (i586-unknown-linux2.0.29)
                           of Mon Apr  7 1997 on altair.xemacs.org"

     Called interactively, the function prints the same information in
     the echo area.

 - Variable: emacs-build-time
     The value of this variable is the time at which XEmacs was built
     at the local site.

          emacs-build-time "Mon Apr  7 20:28:52 1997"
               =>

 - Variable: emacs-version
     The value of this variable is the version of Emacs being run.  It
     is a string, e.g. `"20.1 XEmacs Lucid"'.

   The following two variables did not exist before FSF GNU Emacs
version 19.23 and XEmacs version 19.10, which reduces their usefulness
at present, but we hope they will be convenient in the future.

 - Variable: emacs-major-version
     The major version number of Emacs, as an integer.  For XEmacs
     version 20.1, the value is 20.

 - Variable: emacs-minor-version
     The minor version number of Emacs, as an integer.  For XEmacs
     version 20.1, the value is 1.

\1f
File: lispref.info,  Node: Pure Storage,  Next: Garbage Collection,  Prev: Building XEmacs,  Up: Building XEmacs and Object Allocation

Pure Storage
============

   XEmacs Lisp uses two kinds of storage for user-created Lisp objects:
"normal storage" and "pure storage".  Normal storage is where all the
new data created during an XEmacs session is kept; see the following
section for information on normal storage.  Pure storage is used for
certain data in the preloaded standard Lisp files--data that should
never change during actual use of XEmacs.

   Pure storage is allocated only while `temacs' is loading the
standard preloaded Lisp libraries.  In the file `xemacs', it is marked
as read-only (on operating systems that permit this), so that the
memory space can be shared by all the XEmacs jobs running on the machine
at once.  Pure storage is not expandable; a fixed amount is allocated
when XEmacs is compiled, and if that is not sufficient for the preloaded
libraries, `temacs' aborts with an error message.  If that happens, you
must increase the compilation parameter `PURESIZE' using the
`--puresize' option to `configure'.  This normally won't happen unless
you try to preload additional libraries or add features to the standard
ones.

 - Function: purecopy OBJECT
     This function makes a copy of OBJECT in pure storage and returns
     it.  It copies strings by simply making a new string with the same
     characters in pure storage.  It recursively copies the contents of
     vectors and cons cells.  It does not make copies of other objects
     such as symbols, but just returns them unchanged.  It signals an
     error if asked to copy markers.

     This function is a no-op except while XEmacs is being built and
     dumped; it is usually called only in the file
     `xemacs/lisp/prim/loaddefs.el', but a few packages call it just in
     case you decide to preload them.

 - Variable: pure-bytes-used
     The value of this variable is the number of bytes of pure storage
     allocated so far.  Typically, in a dumped XEmacs, this number is
     very close to the total amount of pure storage available--if it
     were not, we would preallocate less.

 - Variable: purify-flag
     This variable determines whether `defun' should make a copy of the
     function definition in pure storage.  If it is non-`nil', then the
     function definition is copied into pure storage.

     This flag is `t' while loading all of the basic functions for
     building XEmacs initially (allowing those functions to be sharable
     and non-collectible).  Dumping XEmacs as an executable always
     writes `nil' in this variable, regardless of the value it actually
     has before and after dumping.

     You should not change this flag in a running XEmacs.

\1f
File: lispref.info,  Node: Garbage Collection,  Prev: Pure Storage,  Up: Building XEmacs and Object Allocation

Garbage Collection
==================

   When a program creates a list or the user defines a new function
(such as by loading a library), that data is placed in normal storage.
If normal storage runs low, then XEmacs asks the operating system to
allocate more memory in blocks of 2k bytes.  Each block is used for one
type of Lisp object, so symbols, cons cells, markers, etc., are
segregated in distinct blocks in memory.  (Vectors, long strings,
buffers and certain other editing types, which are fairly large, are
allocated in individual blocks, one per object, while small strings are
packed into blocks of 8k bytes. [More correctly, a string is allocated
in two sections: a fixed size chunk containing the length, list of
extents, etc.; and a chunk containing the actual characters in the
string.  It is this latter chunk that is either allocated individually
or packed into 8k blocks.  The fixed size chunk is packed into 2k
blocks, as for conses, markers, etc.])

   It is quite common to use some storage for a while, then release it
by (for example) killing a buffer or deleting the last pointer to an
object.  XEmacs provides a "garbage collector" to reclaim this
abandoned storage.  (This name is traditional, but "garbage recycler"
might be a more intuitive metaphor for this facility.)

   The garbage collector operates by finding and marking all Lisp
objects that are still accessible to Lisp programs.  To begin with, it
assumes all the symbols, their values and associated function
definitions, and any data presently on the stack, are accessible.  Any
objects that can be reached indirectly through other accessible objects
are also accessible.

   When marking is finished, all objects still unmarked are garbage.  No
matter what the Lisp program or the user does, it is impossible to refer
to them, since there is no longer a way to reach them.  Their space
might as well be reused, since no one will miss them.  The second
("sweep") phase of the garbage collector arranges to reuse them.

   The sweep phase puts unused cons cells onto a "free list" for future
allocation; likewise for symbols, markers, extents, events, floats,
compiled-function objects, and the fixed-size portion of strings.  It
compacts the accessible small string-chars chunks so they occupy fewer
8k blocks; then it frees the other 8k blocks.  Vectors, buffers,
windows, and other large objects are individually allocated and freed
using `malloc' and `free'.

     Common Lisp note: unlike other Lisps, XEmacs Lisp does not call
     the garbage collector when the free list is empty.  Instead, it
     simply requests the operating system to allocate more storage, and
     processing continues until `gc-cons-threshold' bytes have been
     used.

     This means that you can make sure that the garbage collector will
     not run during a certain portion of a Lisp program by calling the
     garbage collector explicitly just before it (provided that portion
     of the program does not use so much space as to force a second
     garbage collection).

 - Command: garbage-collect
     This command runs a garbage collection, and returns information on
     the amount of space in use.  (Garbage collection can also occur
     spontaneously if you use more than `gc-cons-threshold' bytes of
     Lisp data since the previous garbage collection.)

     `garbage-collect' returns a list containing the following
     information:

          ((USED-CONSES . FREE-CONSES)
           (USED-SYMS . FREE-SYMS)
           (USED-MARKERS . FREE-MARKERS)
           USED-STRING-CHARS
           USED-VECTOR-SLOTS
           (PLIST))
          
          => ((73362 . 8325) (13718 . 164)
          (5089 . 5098) 949121 118677
          (conses-used 73362 conses-free 8329 cons-storage 658168
          symbols-used 13718 symbols-free 164 symbol-storage 335216
          bit-vectors-used 0 bit-vectors-total-length 0
          bit-vector-storage 0 vectors-used 7882
          vectors-total-length 118677 vector-storage 537764
          compiled-functions-used 1336 compiled-functions-free 37
          compiled-function-storage 44440 short-strings-used 28829
          long-strings-used 2 strings-free 7722
          short-strings-total-length 916657 short-string-storage 1179648
          long-strings-total-length 32464 string-header-storage 441504
          floats-used 3 floats-free 43 float-storage 2044 markers-used 5089
          markers-free 5098 marker-storage 245280 events-used 103
          events-free 835 event-storage 110656 extents-used 10519
          extents-free 2718 extent-storage 372736
          extent-auxiliarys-used 111 extent-auxiliarys-freed 3
          extent-auxiliary-storage 4440 window-configurations-used 39
          window-configurations-on-free-list 5
          window-configurations-freed 10 window-configuration-storage 9492
          popup-datas-used 3 popup-data-storage 72 toolbar-buttons-used 62
          toolbar-button-storage 4960 toolbar-datas-used 12
          toolbar-data-storage 240 symbol-value-buffer-locals-used 182
          symbol-value-buffer-local-storage 5824
          symbol-value-lisp-magics-used 22
          symbol-value-lisp-magic-storage 1496
          symbol-value-varaliases-used 43
          symbol-value-varalias-storage 1032 opaque-lists-used 2
          opaque-list-storage 48 color-instances-used 12
          color-instance-storage 288 font-instances-used 5
          font-instance-storage 180 opaques-used 11 opaque-storage 312
          range-tables-used 1 range-table-storage 16 faces-used 34
          face-storage 2584 glyphs-used 124 glyph-storage 4464
          specifiers-used 775 specifier-storage 43869 weak-lists-used 786
          weak-list-storage 18864 char-tables-used 40
          char-table-storage 41920 buffers-used 25 buffer-storage 7000
          extent-infos-used 457 extent-infos-freed 73
          extent-info-storage 9140 keymaps-used 275 keymap-storage 12100
          consoles-used 4 console-storage 384 command-builders-used 2
          command-builder-storage 120 devices-used 2 device-storage 344
          frames-used 3 frame-storage 624 image-instances-used 47
          image-instance-storage 3008 windows-used 27 windows-freed 2
          window-storage 9180 lcrecord-lists-used 15
          lcrecord-list-storage 360 hash-tables-used 631
          hash-table-storage 25240 streams-used 1 streams-on-free-list 3
          streams-freed 12 stream-storage 91))

     Here is a table explaining each element:

    USED-CONSES
          The number of cons cells in use.

    FREE-CONSES
          The number of cons cells for which space has been obtained
          from the operating system, but that are not currently being
          used.

    USED-SYMS
          The number of symbols in use.

    FREE-SYMS
          The number of symbols for which space has been obtained from
          the operating system, but that are not currently being used.

    USED-MARKERS
          The number of markers in use.

    FREE-MARKERS
          The number of markers for which space has been obtained from
          the operating system, but that are not currently being used.

    USED-STRING-CHARS
          The total size of all strings, in characters.

    USED-VECTOR-SLOTS
          The total number of elements of existing vectors.

    PLIST
          A list of alternating keyword/value pairs providing more
          detailed information. (As you can see above, quite a lot of
          information is provided.)

 - User Option: gc-cons-threshold
     The value of this variable is the number of bytes of storage that
     must be allocated for Lisp objects after one garbage collection in
     order to trigger another garbage collection.  A cons cell counts
     as eight bytes, a string as one byte per character plus a few
     bytes of overhead, and so on; space allocated to the contents of
     buffers does not count.  Note that the subsequent garbage
     collection does not happen immediately when the threshold is
     exhausted, but only the next time the Lisp evaluator is called.

     The initial threshold value is 500,000.  If you specify a larger
     value, garbage collection will happen less often.  This reduces the
     amount of time spent garbage collecting, but increases total
     memory use.  You may want to do this when running a program that
     creates lots of Lisp data.

     You can make collections more frequent by specifying a smaller
     value, down to 10,000.  A value less than 10,000 will remain in
     effect only until the subsequent garbage collection, at which time
     `garbage-collect' will set the threshold back to 10,000. (This does
     not apply if XEmacs was configured with `--debug'.  Therefore, be
     careful when setting `gc-cons-threshold' in that case!)

 - Function: memory-limit
     This function returns the address of the last byte XEmacs has
     allocated, divided by 1024.  We divide the value by 1024 to make
     sure it fits in a Lisp integer.

     You can use this to get a general idea of how your actions affect
     the memory usage.

 - Variable: pre-gc-hook
     This is a normal hook to be run just before each garbage
     collection.  Interrupts, garbage collection, and errors are
     inhibited while this hook runs, so be extremely careful in what
     you add here.  In particular, avoid consing, and do not interact
     with the user.

 - Variable: post-gc-hook
     This is a normal hook to be run just after each garbage collection.
     Interrupts, garbage collection, and errors are inhibited while
     this hook runs, so be extremely careful in what you add here.  In
     particular, avoid consing, and do not interact with the user.

 - Variable: gc-message
     This is a string to print to indicate that a garbage collection is
     in progress.  This is printed in the echo area.  If the selected
     frame is on a window system and `gc-pointer-glyph' specifies a
     value (i.e. a pointer image instance) in the domain of the
     selected frame, the mouse cursor will change instead of this
     message being printed.

 - Glyph: gc-pointer-glyph
     This holds the pointer glyph used to indicate that a garbage
     collection is in progress.  If the selected window is on a window
     system and this glyph specifies a value (i.e. a pointer image
     instance) in the domain of the selected window, the cursor will be
     changed as specified during garbage collection.  Otherwise, a
     message will be printed in the echo area, as controlled by
     `gc-message'.  *Note Glyphs::.

   If XEmacs was configured with `--debug', you can set the following
two variables to get direct information about all the allocation that
is happening in a segment of Lisp code.

 - Variable: debug-allocation
     If non-zero, print out information to stderr about all objects
     allocated.

 - Variable: debug-allocation-backtrace
     Length (in stack frames) of short backtrace printed out by
     `debug-allocation'.

\1f
File: lispref.info,  Node: Standard Errors,  Next: Standard Buffer-Local Variables,  Prev: Building XEmacs and Object Allocation,  Up: Top

Standard Errors
***************

   Here is the complete list of the error symbols in standard Emacs,
grouped by concept.  The list includes each symbol's message (on the
`error-message' property of the symbol) and a cross reference to a
description of how the error can occur.

   Each error symbol has an `error-conditions' property that is a list
of symbols.  Normally this list includes the error symbol itself and
the symbol `error'.  Occasionally it includes additional symbols, which
are intermediate classifications, narrower than `error' but broader
than a single error symbol.  For example, all the errors in accessing
files have the condition `file-error'.

   As a special exception, the error symbol `quit' does not have the
condition `error', because quitting is not considered an error.

   *Note Errors::, for an explanation of how errors are generated and
handled.

`SYMBOL'
     STRING; REFERENCE.

`error'
     `"error"'
     *Note Errors::.

`quit'
     `"Quit"'
     *Note Quitting::.

`args-out-of-range'
     `"Args out of range"'
     *Note Sequences Arrays Vectors::.

`arith-error'
     `"Arithmetic error"'
     See `/' and `%' in *Note Numbers::.

`beginning-of-buffer'
     `"Beginning of buffer"'
     *Note Motion::.

`buffer-read-only'
     `"Buffer is read-only"'
     *Note Read Only Buffers::.

`cyclic-function-indirection'
     `"Symbol's chain of function indirections contains a loop"'
     *Note Function Indirection::.

`domain-error'
     `"Arithmetic domain error"'
`end-of-buffer'
     `"End of buffer"'
     *Note Motion::.

`end-of-file'
     `"End of file during parsing"'
     This is not a `file-error'.
     *Note Input Functions::.

`file-error'
     This error and its subcategories do not have error-strings,
     because the error message is constructed from the data items alone
     when the error condition `file-error' is present.
     *Note Files::.

`file-locked'
     This is a `file-error'.
     *Note File Locks::.

`file-already-exists'
     This is a `file-error'.
     *Note Writing to Files::.

`file-supersession'
     This is a `file-error'.
     *Note Modification Time::.

`invalid-byte-code'
     `"Invalid byte code"'
     *Note Byte Compilation::.

`invalid-function'
     `"Invalid function"'
     *Note Classifying Lists::.

`invalid-read-syntax'
     `"Invalid read syntax"'
     *Note Input Functions::.

`invalid-regexp'
     `"Invalid regexp"'
     *Note Regular Expressions::.

`mark-inactive'
     `"The mark is not active now"'
`no-catch'
     `"No catch for tag"'
     *Note Catch and Throw::.

`overflow-error'
     `"Arithmetic overflow error"'
`protected-field'
     `"Attempt to modify a protected field"'
`range-error'
     `"Arithmetic range error"'
`search-failed'
     `"Search failed"'
     *Note Searching and Matching::.

`setting-constant'
     `"Attempt to set a constant symbol"'
     *Note Variables that Never Change: Constant Variables.

`singularity-error'
     `"Arithmetic singularity error"'
`tooltalk-error'
     `"ToolTalk error"'
     *Note ToolTalk Support::.

`undefined-keystroke-sequence'
     `"Undefined keystroke sequence"'
`void-function'
     `"Symbol's function definition is void"'
     *Note Function Cells::.

`void-variable'
     `"Symbol's value as variable is void"'
     *Note Accessing Variables::.

`wrong-number-of-arguments'
     `"Wrong number of arguments"'
     *Note Classifying Lists::.

`wrong-type-argument'
     `"Wrong type argument"'
     *Note Type Predicates::.

   These error types, which are all classified as special cases of
`arith-error', can occur on certain systems for invalid use of
mathematical functions.

`domain-error'
     `"Arithmetic domain error"'
     *Note Math Functions::.

`overflow-error'
     `"Arithmetic overflow error"'
     *Note Math Functions::.

`range-error'
     `"Arithmetic range error"'
     *Note Math Functions::.

`singularity-error'
     `"Arithmetic singularity error"'
     *Note Math Functions::.

`underflow-error'
     `"Arithmetic underflow error"'
     *Note Math Functions::.

\1f
File: lispref.info,  Node: Standard Buffer-Local Variables,  Next: Standard Keymaps,  Prev: Standard Errors,  Up: Top

Buffer-Local Variables
**********************

   The table below lists the general-purpose Emacs variables that are
automatically local (when set) in each buffer.  Many Lisp packages
define such variables for their internal use; we don't list them here.

`abbrev-mode'
     *note Abbrevs::.

`auto-fill-function'
     *note Auto Filling::.

`buffer-auto-save-file-name'
     *note Auto-Saving::.

`buffer-backed-up'
     *note Backup Files::.

`buffer-display-table'
     *note Display Tables::.

`buffer-file-format'
     *note Format Conversion::.

`buffer-file-name'
     *note Buffer File Name::.

`buffer-file-number'
     *note Buffer File Name::.

`buffer-file-truename'
     *note Buffer File Name::.

`buffer-file-type'
     *note Files and MS-DOS::.

`buffer-invisibility-spec'
     *note Invisible Text::.

`buffer-offer-save'
     *note Saving Buffers::.

`buffer-read-only'
     *note Read Only Buffers::.

`buffer-saved-size'
     *note Point::.

`buffer-undo-list'
     *note Undo::.

`cache-long-line-scans'
     *note Text Lines::.

`case-fold-search'
     *note Searching and Case::.

`ctl-arrow'
     *note Usual Display::.

`comment-column'
     *note Comments: (emacs)Comments.

`default-directory'
     *note System Environment::.

`defun-prompt-regexp'
     *note List Motion::.

`fill-column'
     *note Auto Filling::.

`goal-column'
     *note Moving Point: (emacs)Moving Point.

`left-margin'
     *note Indentation::.

`local-abbrev-table'
     *note Abbrevs::.

`local-write-file-hooks'
     *note Saving Buffers::.

`major-mode'
     *note Mode Help::.

`mark-active'
     *note The Mark::.

`mark-ring'
     *note The Mark::.

`minor-modes'
     *note Minor Modes::.

`modeline-format'
     *note Modeline Data::.

`modeline-buffer-identification'
     *note Modeline Variables::.

`modeline-format'
     *note Modeline Data::.

`modeline-modified'
     *note Modeline Variables::.

`modeline-process'
     *note Modeline Variables::.

`mode-name'
     *note Modeline Variables::.

`overwrite-mode'
     *note Insertion::.

`paragraph-separate'
     *note Standard Regexps::.

`paragraph-start'
     *note Standard Regexps::.

`point-before-scroll'
     Used for communication between mouse commands and scroll-bar
     commands.

`require-final-newline'
     *note Insertion::.

`selective-display'
     *note Selective Display::.

`selective-display-ellipses'
     *note Selective Display::.

`tab-width'
     *note Usual Display::.

`truncate-lines'
     *note Truncation::.

`vc-mode'
     *note Modeline Variables::.

\1f
File: lispref.info,  Node: Standard Keymaps,  Next: Standard Hooks,  Prev: Standard Buffer-Local Variables,  Up: Top

Standard Keymaps
****************

   The following symbols are used as the names for various keymaps.
Some of these exist when XEmacs is first started, others are loaded
only when their respective mode is used.  This is not an exhaustive
list.

   Almost all of these maps are used as local maps.  Indeed, of the
modes that presently exist, only Vip mode and Terminal mode ever change
the global keymap.

`bookmark-map'
     A keymap containing bindings to bookmark functions.

`Buffer-menu-mode-map'
     A keymap used by Buffer Menu mode.

`c++-mode-map'
     A keymap used by C++ mode.

`c-mode-map'
     A keymap used by C mode.  A sparse keymap used by C mode.

`command-history-map'
     A keymap used by Command History mode.

`ctl-x-4-map'
     A keymap for subcommands of the prefix `C-x 4'.

`ctl-x-5-map'
     A keymap for subcommands of the prefix `C-x 5'.

`ctl-x-map'
     A keymap for `C-x' commands.

`debugger-mode-map'
     A keymap used by Debugger mode.

`dired-mode-map'
     A keymap for `dired-mode' buffers.

`edit-abbrevs-map'
     A keymap used in `edit-abbrevs'.

`edit-tab-stops-map'
     A keymap used in `edit-tab-stops'.

`electric-buffer-menu-mode-map'
     A keymap used by Electric Buffer Menu mode.

`electric-history-map'
     A keymap used by Electric Command History mode.

`emacs-lisp-mode-map'
     A keymap used by Emacs Lisp mode.

`help-map'
     A keymap for characters following the Help key.

`Helper-help-map'
     A keymap used by the help utility package.
     It has the same keymap in its value cell and in its function cell.

`Info-edit-map'
     A keymap used by the `e' command of Info.

`Info-mode-map'
     A keymap containing Info commands.

`isearch-mode-map'
     A keymap that defines the characters you can type within
     incremental search.

`itimer-edit-map'
     A keymap used when in Itimer Edit mode.

`lisp-interaction-mode-map'
     A keymap used by Lisp mode.

`lisp-mode-map'
     A keymap used by Lisp mode.

     A keymap for minibuffer input with completion.

`minibuffer-local-isearch-map'
     A keymap for editing isearch strings in the minibuffer.

`minibuffer-local-map'
     Default keymap to use when reading from the minibuffer.

`minibuffer-local-must-match-map'
     A keymap for minibuffer input with completion, for exact match.

`mode-specific-map'
     The keymap for characters following `C-c'.  Note, this is in the
     global map.  This map is not actually mode specific: its name was
     chosen to be informative for the user in `C-h b'
     (`display-bindings'), where it describes the main use of the `C-c'
     prefix key.

`modeline-map'
     The keymap consulted for mouse-clicks on the modeline of a window.

`objc-mode-map'
     A keymap used in Objective C mode as a local map.

`occur-mode-map'
     A local keymap used by Occur mode.

`overriding-local-map'
     A keymap that overrides all other local keymaps.

`query-replace-map'
     A local keymap used for responses in `query-replace' and related
     commands; also for `y-or-n-p' and `map-y-or-n-p'.  The functions
     that use this map do not support prefix keys; they look up one
     event at a time.

`read-expression-map'
     The minibuffer keymap used for reading Lisp expressions.

`read-shell-command-map'
     The minibuffer keymap used by shell-command and related commands.

`shared-lisp-mode-map'
     A keymap for commands shared by all sorts of Lisp modes.

`text-mode-map'
     A keymap used by Text mode.

`toolbar-map'
     The keymap consulted for mouse-clicks over a toolbar.

`view-mode-map'
     A keymap used by View mode.

\1f
File: lispref.info,  Node: Standard Hooks,  Next: Index,  Prev: Standard Keymaps,  Up: Top

Standard Hooks
**************

   The following is a list of hook variables that let you provide
functions to be called from within Emacs on suitable occasions.

   Most of these variables have names ending with `-hook'.  They are
"normal hooks", run by means of `run-hooks'.  The value of such a hook
is a list of functions.  The recommended way to put a new function on
such a hook is to call `add-hook'.  *Note Hooks::, for more information
about using hooks.

   The variables whose names end in `-function' have single functions
as their values.  Usually there is a specific reason why the variable is
not a normal hook, such as the need to pass arguments to the function.
(In older Emacs versions, some of these variables had names ending in
`-hook' even though they were not normal hooks.)

   The variables whose names end in `-hooks' or `-functions' have lists
of functions as their values, but these functions are called in a
special way (they are passed arguments, or else their values are used).

`activate-menubar-hook'

`activate-popup-menu-hook'

`ad-definition-hooks'

`adaptive-fill-function'

`add-log-current-defun-function'

`after-change-functions'

`after-delete-annotation-hook'

`after-init-hook'

`after-insert-file-functions'

`after-revert-hook'

`after-save-hook'

`after-set-visited-file-name-hooks'

`after-write-file-hooks'

`auto-fill-function'

`auto-save-hook'

`before-change-functions'

`before-delete-annotation-hook'

`before-init-hook'

`before-revert-hook'

`blink-paren-function'

`buffers-menu-switch-to-buffer-function'

`c++-mode-hook'

`c-delete-function'

`c-mode-common-hook'

`c-mode-hook'

`c-special-indent-hook'

`calendar-load-hook'

`change-major-mode-hook'

`command-history-hook'

`comment-indent-function'

`compilation-buffer-name-function'

`compilation-exit-message-function'

`compilation-finish-function'

`compilation-parse-errors-function'

`compilation-mode-hook'

`create-console-hook'

`create-device-hook'

`create-frame-hook'

`dabbrev-friend-buffer-function'

`dabbrev-select-buffers-function'

`delete-console-hook'

`delete-device-hook'

`delete-frame-hook'

`deselect-frame-hook'

`diary-display-hook'

`diary-hook'

`dired-after-readin-hook'

`dired-before-readin-hook'

`dired-load-hook'

`dired-mode-hook'

`disabled-command-hook'

`display-buffer-function'

`ediff-after-setup-control-frame-hook'

`ediff-after-setup-windows-hook'

`ediff-before-setup-control-frame-hook'

`ediff-before-setup-windows-hook'

`ediff-brief-help-message-function'

`ediff-cleanup-hook'

`ediff-control-frame-position-function'

`ediff-display-help-hook'

`ediff-focus-on-regexp-matches-function'

`ediff-forward-word-function'

`ediff-hide-regexp-matches-function'

`ediff-keymap-setup-hook'

`ediff-load-hook'

`ediff-long-help-message-function'

`ediff-make-wide-display-function'

`ediff-merge-split-window-function'

`ediff-meta-action-function'

`ediff-meta-redraw-function'

`ediff-mode-hook'

`ediff-prepare-buffer-hook'

`ediff-quit-hook'

`ediff-registry-setup-hook'

`ediff-select-hook'

`ediff-session-action-function'

`ediff-session-group-setup-hook'

`ediff-setup-diff-regions-function'

`ediff-show-registry-hook'

`ediff-show-session-group-hook'

`ediff-skip-diff-region-function'

`ediff-split-window-function'

`ediff-startup-hook'

`ediff-suspend-hook'

`ediff-toggle-read-only-function'

`ediff-unselect-hook'

`ediff-window-setup-function'

`edit-picture-hook'

`electric-buffer-menu-mode-hook'

`electric-command-history-hook'

`electric-help-mode-hook'

`emacs-lisp-mode-hook'

`fill-paragraph-function'

`find-file-hooks'

`find-file-not-found-hooks'

`first-change-hook'

`font-lock-after-fontify-buffer-hook'

`font-lock-beginning-of-syntax-function'

`font-lock-mode-hook'

`fume-found-function-hook'

`fume-list-mode-hook'

`fume-rescan-buffer-hook'

`fume-sort-function'

`gnus-startup-hook'

`hack-local-variables-hook'

`highlight-headers-follow-url-function'

`hyper-apropos-mode-hook'

`indent-line-function'

`indent-mim-hook'

`indent-region-function'

`initial-calendar-window-hook'

`isearch-mode-end-hook'

`isearch-mode-hook'

`java-mode-hook'

`kill-buffer-hook'

`kill-buffer-query-functions'

`kill-emacs-hook'

`kill-emacs-query-functions'

`kill-hooks'

`LaTeX-mode-hook'

`latex-mode-hook'

`ledit-mode-hook'

`lisp-indent-function'

`lisp-interaction-mode-hook'

`lisp-mode-hook'

`list-diary-entries-hook'

`load-read-function'

`log-message-filter-function'

`m2-mode-hook'

`mail-citation-hook'

`mail-mode-hook'

`mail-setup-hook'

`make-annotation-hook'

`makefile-mode-hook'

`map-frame-hook'

`mark-diary-entries-hook'

`medit-mode-hook'

`menu-no-selection-hook'

`mh-compose-letter-hook'

`mh-folder-mode-hook'

`mh-letter-mode-hook'

`mim-mode-hook'

`minibuffer-exit-hook'

`minibuffer-setup-hook'

`mode-motion-hook'

`mouse-enter-frame-hook'

`mouse-leave-frame-hook'

`mouse-track-cleanup-hook'

`mouse-track-click-hook'

`mouse-track-down-hook'

`mouse-track-drag-hook'

`mouse-track-drag-up-hook'

`mouse-track-up-hook'

`mouse-yank-function'

`news-mode-hook'

`news-reply-mode-hook'

`news-setup-hook'

`nongregorian-diary-listing-hook'

`nongregorian-diary-marking-hook'

`nroff-mode-hook'

`objc-mode-hook'

`outline-mode-hook'

`perl-mode-hook'

`plain-TeX-mode-hook'

`post-command-hook'

`post-gc-hook'

`pre-abbrev-expand-hook'

`pre-command-hook'

`pre-display-buffer-function'

`pre-gc-hook'

`pre-idle-hook'

`print-diary-entries-hook'

`prolog-mode-hook'

`protect-innocence-hook'

`remove-message-hook'

`revert-buffer-function'

`revert-buffer-insert-contents-function'

`rmail-edit-mode-hook'

`rmail-mode-hook'

`rmail-retry-setup-hook'

`rmail-summary-mode-hook'

`scheme-indent-hook'

`scheme-mode-hook'

`scribe-mode-hook'

`select-frame-hook'

`send-mail-function'

`shell-mode-hook'

`shell-set-directory-error-hook'

`special-display-function'

`suspend-hook'

`suspend-resume-hook'

`temp-buffer-show-function'

`term-setup-hook'

`terminal-mode-hook'

`terminal-mode-break-hook'

`TeX-mode-hook'

`tex-mode-hook'

`text-mode-hook'

`today-visible-calendar-hook'

`today-invisible-calendar-hook'

`tooltalk-message-handler-hook'

`tooltalk-pattern-handler-hook'

`tooltalk-unprocessed-message-hook'

`unmap-frame-hook'

`vc-checkin-hook'

`vc-checkout-writable-buffer-hook'

`vc-log-after-operation-hook'

`vc-make-buffer-writable-hook'

`view-hook'

`vm-arrived-message-hook'

`vm-arrived-messages-hook'

`vm-chop-full-name-function'

`vm-display-buffer-hook'

`vm-edit-message-hook'

`vm-forward-message-hook'

`vm-iconify-frame-hook'

`vm-inhibit-write-file-hook'

`vm-key-functions'

`vm-mail-hook'

`vm-mail-mode-hook'

`vm-menu-setup-hook'

`vm-mode-hook'

`vm-quit-hook'

`vm-rename-current-buffer-function'

`vm-reply-hook'

`vm-resend-bounced-message-hook'

`vm-resend-message-hook'

`vm-retrieved-spooled-mail-hook'

`vm-select-message-hook'

`vm-select-new-message-hook'

`vm-select-unread-message-hook'

`vm-send-digest-hook'

`vm-summary-mode-hook'

`vm-summary-pointer-update-hook'

`vm-summary-redo-hook'

`vm-summary-update-hook'

`vm-undisplay-buffer-hook'

`vm-visit-folder-hook'

`window-setup-hook'

`write-contents-hooks'

`write-file-data-hooks'

`write-file-hooks'

`write-region-annotate-functions'

`x-lost-selection-hooks'

`x-sent-selection-hooks'

`zmacs-activate-region-hook'

`zmacs-deactivate-region-hook'

`zmacs-update-region-hook'