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view lisp/abbrev.el @ 665:fdefd0186b75
[xemacs-hg @ 2001-09-20 06:28:42 by ben]
The great integral types renaming.
The purpose of this is to rationalize the names used for various
integral types, so that they match their intended uses and follow
consist conventions, and eliminate types that were not semantically
different from each other.
The conventions are:
-- All integral types that measure quantities of anything are
signed. Some people disagree vociferously with this, but their
arguments are mostly theoretical, and are vastly outweighed by
the practical headaches of mixing signed and unsigned values,
and more importantly by the far increased likelihood of
inadvertent bugs: Because of the broken "viral" nature of
unsigned quantities in C (operations involving mixed
signed/unsigned are done unsigned, when exactly the opposite is
nearly always wanted), even a single error in declaring a
quantity unsigned that should be signed, or even the even more
subtle error of comparing signed and unsigned values and
forgetting the necessary cast, can be catastrophic, as
comparisons will yield wrong results. -Wsign-compare is turned
on specifically to catch this, but this tends to result in a
great number of warnings when mixing signed and unsigned, and
the casts are annoying. More has been written on this
elsewhere.
-- All such quantity types just mentioned boil down to EMACS_INT,
which is 32 bits on 32-bit machines and 64 bits on 64-bit
machines. This is guaranteed to be the same size as Lisp
objects of type `int', and (as far as I can tell) of size_t
(unsigned!) and ssize_t. The only type below that is not an
EMACS_INT is Hashcode, which is an unsigned value of the same
size as EMACS_INT.
-- Type names should be relatively short (no more than 10
characters or so), with the first letter capitalized and no
underscores if they can at all be avoided.
-- "count" == a zero-based measurement of some quantity. Includes
sizes, offsets, and indexes.
-- "bpos" == a one-based measurement of a position in a buffer.
"Charbpos" and "Bytebpos" count text in the buffer, rather than
bytes in memory; thus Bytebpos does not directly correspond to
the memory representation. Use "Membpos" for this.
-- "Char" refers to internal-format characters, not to the C type
"char", which is really a byte.
-- For the actual name changes, see the script below.
I ran the following script to do the conversion. (NOTE: This script
is idempotent. You can safely run it multiple times and it will
not screw up previous results -- in fact, it will do nothing if
nothing has changed. Thus, it can be run repeatedly as necessary
to handle patches coming in from old workspaces, or old branches.)
There are two tags, just before and just after the change:
`pre-integral-type-rename' and `post-integral-type-rename'. When
merging code from the main trunk into a branch, the best thing to
do is first merge up to `pre-integral-type-rename', then apply the
script and associated changes, then merge from
`post-integral-type-change' to the present. (Alternatively, just do
the merging in one operation; but you may then have a lot of
conflicts needing to be resolved by hand.)
Script `fixtypes.sh' follows:
----------------------------------- cut ------------------------------------
files="*.[ch] s/*.h m/*.h config.h.in ../configure.in Makefile.in.in ../lib-src/*.[ch] ../lwlib/*.[ch]"
gr Memory_Count Bytecount $files
gr Lstream_Data_Count Bytecount $files
gr Element_Count Elemcount $files
gr Hash_Code Hashcode $files
gr extcount bytecount $files
gr bufpos charbpos $files
gr bytind bytebpos $files
gr memind membpos $files
gr bufbyte intbyte $files
gr Extcount Bytecount $files
gr Bufpos Charbpos $files
gr Bytind Bytebpos $files
gr Memind Membpos $files
gr Bufbyte Intbyte $files
gr EXTCOUNT BYTECOUNT $files
gr BUFPOS CHARBPOS $files
gr BYTIND BYTEBPOS $files
gr MEMIND MEMBPOS $files
gr BUFBYTE INTBYTE $files
gr MEMORY_COUNT BYTECOUNT $files
gr LSTREAM_DATA_COUNT BYTECOUNT $files
gr ELEMENT_COUNT ELEMCOUNT $files
gr HASH_CODE HASHCODE $files
----------------------------------- cut ------------------------------------
`fixtypes.sh' is a Bourne-shell script; it uses 'gr':
----------------------------------- cut ------------------------------------
#!/bin/sh
# Usage is like this:
# gr FROM TO FILES ...
# globally replace FROM with TO in FILES. FROM and TO are regular expressions.
# backup files are stored in the `backup' directory.
from="$1"
to="$2"
shift 2
echo ${1+"$@"} | xargs global-replace "s/$from/$to/g"
----------------------------------- cut ------------------------------------
`gr' in turn uses a Perl script to do its real work,
`global-replace', which follows:
----------------------------------- cut ------------------------------------
: #-*- Perl -*-
### global-modify --- modify the contents of a file by a Perl expression
## Copyright (C) 1999 Martin Buchholz.
## Copyright (C) 2001 Ben Wing.
## Authors: Martin Buchholz <martin@xemacs.org>, Ben Wing <ben@xemacs.org>
## Maintainer: Ben Wing <ben@xemacs.org>
## Current Version: 1.0, May 5, 2001
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with XEmacs; see the file COPYING. If not, write to the Free
# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
eval 'exec perl -w -S $0 ${1+"$@"}'
if 0;
use strict;
use FileHandle;
use Carp;
use Getopt::Long;
use File::Basename;
(my $myName = $0) =~ s@.*/@@; my $usage="
Usage: $myName [--help] [--backup-dir=DIR] [--line-mode] [--hunk-mode]
PERLEXPR FILE ...
Globally modify a file, either line by line or in one big hunk.
Typical usage is like this:
[with GNU print, GNU xargs: guaranteed to handle spaces, quotes, etc.
in file names]
find . -name '*.[ch]' -print0 | xargs -0 $0 's/\bCONST\b/const/g'\n
[with non-GNU print, xargs]
find . -name '*.[ch]' -print | xargs $0 's/\bCONST\b/const/g'\n
The file is read in, either line by line (with --line-mode specified)
or in one big hunk (with --hunk-mode specified; it's the default), and
the Perl expression is then evalled with \$_ set to the line or hunk of
text, including the terminating newline if there is one. It should
destructively modify the value there, storing the changed result in \$_.
Files in which any modifications are made are backed up to the directory
specified using --backup-dir, or to `backup' by default. To disable this,
use --backup-dir= with no argument.
Hunk mode is the default because it is MUCH MUCH faster than line-by-line.
Use line-by-line only when it matters, e.g. you want to do a replacement
only once per line (the default without the `g' argument). Conversely,
when using hunk mode, *ALWAYS* use `g'; otherwise, you will only make one
replacement in the entire file!
";
my %options = ();
$Getopt::Long::ignorecase = 0;
&GetOptions (
\%options,
'help', 'backup-dir=s', 'line-mode', 'hunk-mode',
);
die $usage if $options{"help"} or @ARGV <= 1;
my $code = shift;
die $usage if grep (-d || ! -w, @ARGV);
sub SafeOpen {
open ((my $fh = new FileHandle), $_[0]);
confess "Can't open $_[0]: $!" if ! defined $fh;
return $fh;
}
sub SafeClose {
close $_[0] or confess "Can't close $_[0]: $!";
}
sub FileContents {
my $fh = SafeOpen ("< $_[0]");
my $olddollarslash = $/;
local $/ = undef;
my $contents = <$fh>;
$/ = $olddollarslash;
return $contents;
}
sub WriteStringToFile {
my $fh = SafeOpen ("> $_[0]");
binmode $fh;
print $fh $_[1] or confess "$_[0]: $!\n";
SafeClose $fh;
}
foreach my $file (@ARGV) {
my $changed_p = 0;
my $new_contents = "";
if ($options{"line-mode"}) {
my $fh = SafeOpen $file;
while (<$fh>) {
my $save_line = $_;
eval $code;
$changed_p = 1 if $save_line ne $_;
$new_contents .= $_;
}
} else {
my $orig_contents = $_ = FileContents $file;
eval $code;
if ($_ ne $orig_contents) {
$changed_p = 1;
$new_contents = $_;
}
}
if ($changed_p) {
my $backdir = $options{"backup-dir"};
$backdir = "backup" if !defined ($backdir);
if ($backdir) {
my ($name, $path, $suffix) = fileparse ($file, "");
my $backfulldir = $path . $backdir;
my $backfile = "$backfulldir/$name";
mkdir $backfulldir, 0755 unless -d $backfulldir;
print "modifying $file (original saved in $backfile)\n";
rename $file, $backfile;
}
WriteStringToFile ($file, $new_contents);
}
}
----------------------------------- cut ------------------------------------
In addition to those programs, I needed to fix up a few other
things, particularly relating to the duplicate definitions of
types, now that some types merged with others. Specifically:
1. in lisp.h, removed duplicate declarations of Bytecount. The
changed code should now look like this: (In each code snippet
below, the first and last lines are the same as the original, as
are all lines outside of those lines. That allows you to locate
the section to be replaced, and replace the stuff in that
section, verifying that there isn't anything new added that
would need to be kept.)
--------------------------------- snip -------------------------------------
/* Counts of bytes or chars */
typedef EMACS_INT Bytecount;
typedef EMACS_INT Charcount;
/* Counts of elements */
typedef EMACS_INT Elemcount;
/* Hash codes */
typedef unsigned long Hashcode;
/* ------------------------ dynamic arrays ------------------- */
--------------------------------- snip -------------------------------------
2. in lstream.h, removed duplicate declaration of Bytecount.
Rewrote the comment about this type. The changed code should
now look like this:
--------------------------------- snip -------------------------------------
#endif
/* The have been some arguments over the what the type should be that
specifies a count of bytes in a data block to be written out or read in,
using Lstream_read(), Lstream_write(), and related functions.
Originally it was long, which worked fine; Martin "corrected" these to
size_t and ssize_t on the grounds that this is theoretically cleaner and
is in keeping with the C standards. Unfortunately, this practice is
horribly error-prone due to design flaws in the way that mixed
signed/unsigned arithmetic happens. In fact, by doing this change,
Martin introduced a subtle but fatal error that caused the operation of
sending large mail messages to the SMTP server under Windows to fail.
By putting all values back to be signed, avoiding any signed/unsigned
mixing, the bug immediately went away. The type then in use was
Lstream_Data_Count, so that it be reverted cleanly if a vote came to
that. Now it is Bytecount.
Some earlier comments about why the type must be signed: This MUST BE
SIGNED, since it also is used in functions that return the number of
bytes actually read to or written from in an operation, and these
functions can return -1 to signal error.
Note that the standard Unix read() and write() functions define the
count going in as a size_t, which is UNSIGNED, and the count going
out as an ssize_t, which is SIGNED. This is a horrible design
flaw. Not only is it highly likely to lead to logic errors when a
-1 gets interpreted as a large positive number, but operations are
bound to fail in all sorts of horrible ways when a number in the
upper-half of the size_t range is passed in -- this number is
unrepresentable as an ssize_t, so code that checks to see how many
bytes are actually written (which is mandatory if you are dealing
with certain types of devices) will get completely screwed up.
--ben
*/
typedef enum lstream_buffering
--------------------------------- snip -------------------------------------
3. in dumper.c, there are four places, all inside of switch()
statements, where XD_BYTECOUNT appears twice as a case tag. In
each case, the two case blocks contain identical code, and you
should *REMOVE THE SECOND* and leave the first.
| author | ben |
|---|---|
| date | Thu, 20 Sep 2001 06:31:11 +0000 |
| parents | 1ccc32a20af4 |
| children | a634e3b7acc8 |
line wrap: on
line source
;;; abbrev.el --- abbrev mode commands for Emacs ;; Copyright (C) 1985, 1986, 1987, 1992, 1997 Free Software Foundation, Inc. ;; Maintainer: XEmacs Development Team ;; Keywords: abbrev, dumped ;; This file is part of XEmacs. ;; XEmacs is free software; you can redistribute it and/or modify it ;; under the terms of the GNU General Public License as published by ;; the Free Software Foundation; either version 2, or (at your option) ;; any later version. ;; XEmacs is distributed in the hope that it will be useful, but ;; WITHOUT ANY WARRANTY; without even the implied warranty of ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ;; General Public License for more details. ;; You should have received a copy of the GNU General Public License ;; along with XEmacs; see the file COPYING. If not, write to the Free ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA ;; 02111-1307, USA. ;;; Synched up with: FSF 19.34 (With some additions) ;;; Commentary: ;; This file is dumped with XEmacs. ;; This facility is documented in the Emacs Manual. ;;; Code: (defgroup abbrev nil "Abbreviation handling, typing shortcuts, macros." :tag "Abbreviations" :group 'editing) (defgroup abbrev-mode nil "Word abbreviations mode." :group 'abbrev) ;jwz: this is preloaded so don't ;;;###autoload (defcustom only-global-abbrevs nil "\ *Non-nil means user plans to use global abbrevs only. Makes the commands to define mode-specific abbrevs define global ones instead." :type 'boolean :group 'abbrev) ;;; XEmacs: the following block of code is not in FSF (defvar abbrev-table-name-list '() "List of symbols whose values are abbrev tables.") (defvar abbrevs-changed nil "Set non-nil by defining or altering any word abbrevs. This causes `save-some-buffers' to offer to save the abbrevs.") (defun make-abbrev-table () "Return a new, empty abbrev table object." (make-vector 59 0)) ; 59 is prime (defun clear-abbrev-table (table) "Undefine all abbrevs in abbrev table TABLE, leaving it empty." (fillarray table 0) (setq abbrevs-changed t) nil) (defun define-abbrev-table (table-name definitions) "Define TABLE-NAME (a symbol) as an abbrev table name. Define abbrevs in it according to DEFINITIONS, which is a list of elements of the form (ABBREVNAME EXPANSION HOOK USECOUNT)." (let ((table (and (boundp table-name) (symbol-value table-name)))) (cond ((vectorp table)) ((not table) (setq table (make-abbrev-table)) (set table-name table) (setq abbrev-table-name-list (cons table-name abbrev-table-name-list))) (t (setq table (wrong-type-argument 'vectorp table)) (set table-name table))) (while definitions (apply (function define-abbrev) table (car definitions)) (setq definitions (cdr definitions))))) (defun define-abbrev (table name &optional expansion hook count) "Define an abbrev in TABLE named NAME, to expand to EXPANSION or call HOOK. NAME and EXPANSION are strings. Hook is a function or `nil'. To undefine an abbrev, define it with an expansion of `nil'." (check-type expansion (or null string)) (check-type count (or null integer)) (check-type table vector) (let* ((sym (intern name table)) (oexp (and (boundp sym) (symbol-value sym))) (ohook (and (fboundp sym) (symbol-function sym)))) (unless (and (equal ohook hook) (stringp oexp) (stringp expansion) (string-equal oexp expansion)) (setq abbrevs-changed t) ;; If there is a non-word character in the string, set the flag. (if (string-match "\\W" name) (set (intern " " table) nil))) (set sym expansion) (fset sym hook) (setplist sym (or count 0)) name)) ;; Fixup stuff from bootstrap def of define-abbrev-table in subr.el (let ((l abbrev-table-name-list)) (while l (let ((fixup (car l))) (if (consp fixup) (progn (setq abbrev-table-name-list (delq fixup abbrev-table-name-list)) (define-abbrev-table (car fixup) (cdr fixup)))) (setq l (cdr l)))) ;; These are no longer initialized by C code (if (not global-abbrev-table) (progn (setq global-abbrev-table (make-abbrev-table)) (setq abbrev-table-name-list (cons 'global-abbrev-table abbrev-table-name-list)))) (if (not fundamental-mode-abbrev-table) (progn (setq fundamental-mode-abbrev-table (make-abbrev-table)) (setq abbrev-table-name-list (cons 'fundamental-mode-abbrev-table abbrev-table-name-list)))) (and (eq major-mode 'fundamental-mode) (not local-abbrev-table) (setq local-abbrev-table fundamental-mode-abbrev-table))) (defun define-global-abbrev (name expansion) "Define ABBREV as a global abbreviation for EXPANSION." (interactive "sDefine global abbrev: \nsExpansion for %s: ") (define-abbrev global-abbrev-table (downcase name) expansion nil 0)) (defun define-mode-abbrev (name expansion) "Define ABBREV as a mode-specific abbreviation for EXPANSION." (interactive "sDefine mode abbrev: \nsExpansion for %s: ") (define-abbrev (or local-abbrev-table (error "Major mode has no abbrev table")) (downcase name) expansion nil 0)) (defun abbrev-symbol (abbrev &optional table) "Return the symbol representing abbrev named ABBREV. This symbol's name is ABBREV, but it is not the canonical symbol of that name; it is interned in an abbrev-table rather than the normal obarray. The value is nil if that abbrev is not defined. Optional second arg TABLE is abbrev table to look it up in. The default is to try buffer's mode-specific abbrev table, then global table." (let ((frob (function (lambda (table) (let ((sym (intern-soft abbrev table))) (if (and (boundp sym) (stringp (symbol-value sym))) sym nil)))))) (if table (funcall frob table) (or (and local-abbrev-table (funcall frob local-abbrev-table)) (funcall frob global-abbrev-table))))) (defun abbrev-expansion (abbrev &optional table) "Return the string that ABBREV expands into in the current buffer. Optionally specify an abbrev table as second arg; then ABBREV is looked up in that table only." (let ((sym (abbrev-symbol abbrev table))) (if sym (symbol-value sym) nil))) (defun unexpand-abbrev () "Undo the expansion of the last abbrev that expanded. This differs from ordinary undo in that other editing done since then is not undone." (interactive) (if (or (< last-abbrev-location (point-min)) (> last-abbrev-location (point-max)) (not (stringp last-abbrev-text))) nil (let* ((opoint (point)) (val (symbol-value last-abbrev)) (adjust (length val))) ;; This isn't correct if (symbol-function last-abbrev-text) ;; was used to do the expansion (goto-char last-abbrev-location) (delete-region last-abbrev-location (+ last-abbrev-location adjust)) (insert last-abbrev-text) (setq adjust (- adjust (length last-abbrev-text))) (setq last-abbrev-text nil) (if (< last-abbrev-location opoint) (goto-char (- opoint adjust)) (goto-char opoint))))) (defun insert-abbrev-table-description (name &optional human-readable) "Insert before point a full description of abbrev table named NAME. NAME is a symbol whose value is an abbrev table. If optional second argument HUMAN-READABLE is non-nil, insert a human-readable description. Otherwise the description is an expression, a call to `define-abbrev-table', which would define the abbrev table NAME exactly as it is currently defined." (let ((table (symbol-value name)) (stream (current-buffer))) (message "Abbrev-table %s..." name) (if human-readable (progn (prin1 (list name) stream) ;; Need two terpri's or cretinous edit-abbrevs blows out (terpri stream) (terpri stream) (mapatoms (function (lambda (sym) (if (symbol-value sym) (let* ((n (prin1-to-string (symbol-name sym))) (pos (length n))) (princ n stream) (while (< pos 14) (write-char ?\ stream) (setq pos (1+ pos))) (princ (format " %-5S " (symbol-plist sym)) stream) (if (not (symbol-function sym)) (prin1 (symbol-value sym) stream) (progn (setq n (prin1-to-string (symbol-value sym)) pos (+ pos 6 (length n))) (princ n stream) (while (< pos 45) (write-char ?\ stream) (setq pos (1+ pos))) (prin1 (symbol-function sym) stream))) (terpri stream))))) table) (terpri stream)) (progn (princ "\(define-abbrev-table '" stream) (prin1 name stream) (princ " '\(\n" stream) (mapatoms (function (lambda (sym) (if (symbol-value sym) (progn (princ " " stream) (prin1 (list (symbol-name sym) (symbol-value sym) (symbol-function sym) (symbol-plist sym)) stream) (terpri stream))))) table) (princ " \)\)\n" stream))) (terpri stream)) (message "")) ;;; End code not in FSF (defun abbrev-mode (arg) "Toggle abbrev mode. With argument ARG, enable abbrev mode if ARG is positive, else disable. In abbrev mode, inserting an abbreviation causes it to expand and be replaced by its expansion." (interactive "P") (setq abbrev-mode (if (null arg) (not abbrev-mode) (> (prefix-numeric-value arg) 0))) ;; XEmacs change (redraw-modeline)) (defvar edit-abbrevs-map nil "Keymap used in edit-abbrevs.") (if edit-abbrevs-map nil (setq edit-abbrevs-map (make-sparse-keymap)) ;; XEmacs change (set-keymap-name edit-abbrevs-map 'edit-abbrevs-map) (define-key edit-abbrevs-map "\C-x\C-s" 'edit-abbrevs-redefine) (define-key edit-abbrevs-map "\C-c\C-c" 'edit-abbrevs-redefine)) (defun kill-all-abbrevs () "Undefine all defined abbrevs." (interactive) (let ((tables abbrev-table-name-list)) (while tables (clear-abbrev-table (symbol-value (car tables))) (setq tables (cdr tables))))) (defun insert-abbrevs () "Insert after point a description of all defined abbrevs. Mark is set after the inserted text." (interactive) (push-mark (save-excursion (let ((tables abbrev-table-name-list)) (while tables (insert-abbrev-table-description (car tables) t) (setq tables (cdr tables)))) (point)))) (defun list-abbrevs () "Display a list of all defined abbrevs." (interactive) (display-buffer (prepare-abbrev-list-buffer))) (defun prepare-abbrev-list-buffer () (save-excursion (set-buffer (get-buffer-create "*Abbrevs*")) (erase-buffer) (let ((tables abbrev-table-name-list)) (while tables (insert-abbrev-table-description (car tables) t) (setq tables (cdr tables)))) (goto-char (point-min)) (set-buffer-modified-p nil) (edit-abbrevs-mode)) (get-buffer-create "*Abbrevs*")) (defun edit-abbrevs-mode () "Major mode for editing the list of abbrev definitions. \\{edit-abbrevs-map}" (interactive) (setq major-mode 'edit-abbrevs-mode) (setq mode-name "Edit-Abbrevs") (use-local-map edit-abbrevs-map)) (defun edit-abbrevs () "Alter abbrev definitions by editing a list of them. Selects a buffer containing a list of abbrev definitions. You can edit them and type \\<edit-abbrevs-map>\\[edit-abbrevs-redefine] to redefine abbrevs according to your editing. Buffer contains a header line for each abbrev table, which is the abbrev table name in parentheses. This is followed by one line per abbrev in that table: NAME USECOUNT EXPANSION HOOK where NAME and EXPANSION are strings with quotes, USECOUNT is an integer, and HOOK is any valid function or may be omitted (it is usually omitted)." (interactive) (switch-to-buffer (prepare-abbrev-list-buffer))) (defun edit-abbrevs-redefine () "Redefine abbrevs according to current buffer contents." (interactive) (define-abbrevs t) (set-buffer-modified-p nil)) (defun define-abbrevs (&optional arg) "Define abbrevs according to current visible buffer contents. See documentation of `edit-abbrevs' for info on the format of the text you must have in the buffer. With argument, eliminate all abbrev definitions except the ones defined from the buffer now." (interactive "P") (if arg (kill-all-abbrevs)) (save-excursion (goto-char (point-min)) (while (and (not (eobp)) (re-search-forward "^(" nil t)) (let* ((buf (current-buffer)) (table (read buf)) abbrevs name hook exp count) (forward-line 1) (while (progn (forward-line 1) (not (eolp))) (setq name (read buf) count (read buf) exp (read buf)) (skip-chars-backward " \t\n\f") (setq hook (if (not (eolp)) (read buf))) (skip-chars-backward " \t\n\f") (setq abbrevs (cons (list name exp hook count) abbrevs))) (define-abbrev-table table abbrevs))))) (defun read-abbrev-file (&optional file quietly) "Read abbrev definitions from file written with `write-abbrev-file'. Optional argument FILE is the name of the file to read; it defaults to the value of `abbrev-file-name'. Optional second argument QUIETLY non-nil means don't print anything." (interactive "fRead abbrev file: ") (load (if (and file (> (length file) 0)) file abbrev-file-name) nil quietly) (setq save-abbrevs t abbrevs-changed nil)) (defun quietly-read-abbrev-file (&optional file) "Read abbrev definitions from file written with `write-abbrev-file'. Optional argument FILE is the name of the file to read; it defaults to the value of `abbrev-file-name'. Does not print anything." ;(interactive "fRead abbrev file: ") (read-abbrev-file file t)) (defun write-abbrev-file (file) "Write all abbrev definitions to a file of Lisp code. The file written can be loaded in another session to define the same abbrevs. The argument FILE is the file name to write." (interactive (list (read-file-name "Write abbrev file: " (file-name-directory (expand-file-name abbrev-file-name)) abbrev-file-name))) (or (and file (> (length file) 0)) (setq file abbrev-file-name)) (save-excursion (set-buffer (get-buffer-create " write-abbrev-file")) (erase-buffer) (let ((tables abbrev-table-name-list)) (while tables (insert-abbrev-table-description (car tables) nil) (setq tables (cdr tables)))) (write-region 1 (point-max) file) (erase-buffer))) (defun abbrev-string-to-be-defined (arg) "Return the string for which an abbrev will be defined. ARG is the argument to `add-global-abbrev' or `add-mode-abbrev'." (if (and (not arg) (region-active-p)) (setq arg 0) (setq arg (prefix-numeric-value arg))) (and (>= arg 0) (buffer-substring (point) (if (= arg 0) (mark) (save-excursion (backward-word arg) (point)))))) (defun add-mode-abbrev (arg) "Define mode-specific abbrev for last word(s) before point. Argument is how many words before point form the expansion; or zero means the region is the expansion. A negative argument means to undefine the specified abbrev. Reads the abbreviation in the minibuffer. Don't use this function in a Lisp program; use `define-abbrev' instead." ;; XEmacs change: (interactive "P") (add-abbrev (if only-global-abbrevs global-abbrev-table (or local-abbrev-table (error "No per-mode abbrev table"))) "Mode" arg)) (defun add-global-abbrev (arg) "Define global (all modes) abbrev for last word(s) before point. The prefix argument specifies the number of words before point that form the expansion; or zero means the region is the expansion. A negative argument means to undefine the specified abbrev. This command uses the minibuffer to read the abbreviation. Don't use this function in a Lisp program; use `define-abbrev' instead." ;; XEmacs change: (interactive "P") (add-abbrev global-abbrev-table "Global" arg)) (defun add-abbrev (table type arg) "Add an abbreviation to abbrev table TABLE. TYPE is a string describing in English the kind of abbrev this will be (typically, \"global\" or \"mode-specific\"); this is used in prompting the user. ARG is the number of words in the expansion. Return the symbol that internally represents the new abbrev, or nil if the user declines to confirm redefining an existing abbrev." ;; XEmacs change: (let ((exp (abbrev-string-to-be-defined arg)) name) (setq name (read-string (format (if exp "%s abbrev for \"%s\": " "Undefine %s abbrev: ") type exp))) (set-text-properties 0 (length name) nil name) (if (or (null exp) (not (abbrev-expansion name table)) (y-or-n-p (format "%s expands to \"%s\"; redefine? " name (abbrev-expansion name table)))) (define-abbrev table (downcase name) exp)))) (defun inverse-abbrev-string-to-be-defined (arg) "Return the string for which an inverse abbrev will be defined. ARG is the argument to `inverse-add-global-abbrev' or `inverse-add-mode-abbrev'." (save-excursion (backward-word arg) (buffer-substring (point) (progn (forward-word 1) (point))))) (defun inverse-add-mode-abbrev (arg) "Define last word before point as a mode-specific abbrev. With prefix argument N, defines the Nth word before point. This command uses the minibuffer to read the expansion. Expands the abbreviation after defining it." (interactive "p") (inverse-add-abbrev (if only-global-abbrevs global-abbrev-table (or local-abbrev-table (error "No per-mode abbrev table"))) "Mode" arg)) (defun inverse-add-global-abbrev (arg) "Define last word before point as a global (mode-independent) abbrev. With prefix argument N, defines the Nth word before point. This command uses the minibuffer to read the expansion. Expands the abbreviation after defining it." (interactive "p") (inverse-add-abbrev global-abbrev-table "Global" arg)) (defun inverse-add-abbrev (table type arg) (let (name nameloc exp) (save-excursion (backward-word arg) (setq name (buffer-substring (point) (progn (forward-word 1) (setq nameloc (point)))))) (set-text-properties 0 (length name) nil name) (setq exp (read-string (format "%s expansion for \"%s\": " type name))) (if (or (not (abbrev-expansion name table)) (y-or-n-p (format "%s expands to \"%s\"; redefine? " name (abbrev-expansion name table)))) (progn (define-abbrev table (downcase name) exp) (save-excursion (goto-char nameloc) (expand-abbrev)))))) (defun abbrev-prefix-mark (&optional arg) "Mark current point as the beginning of an abbrev. Abbrev to be expanded starts here rather than at beginning of word. This way, you can expand an abbrev with a prefix: insert the prefix, use this command, then insert the abbrev." (interactive "P") (or arg (expand-abbrev)) (setq abbrev-start-location (point-marker) abbrev-start-location-buffer (current-buffer)) (let ((e (make-extent (point) (point)))) (set-extent-begin-glyph e (make-glyph [string :data "-"])))) (defun expand-region-abbrevs (start end &optional noquery) "For abbrev occurrence in the region, offer to expand it. The user is asked to type y or n for each occurrence. A prefix argument means don't query; expand all abbrevs. If called from a Lisp program, arguments are START END &optional NOQUERY." (interactive "r\nP") (save-excursion (goto-char start) (let ((lim (- (point-max) end)) pnt string) (while (and (not (eobp)) (progn (forward-word 1) (<= (setq pnt (point)) (- (point-max) lim)))) (if (abbrev-expansion (setq string (buffer-substring (save-excursion (backward-word) (point)) pnt))) (if (or noquery (y-or-n-p (format "Expand `%s'? " string))) (expand-abbrev))))))) ;;; abbrev.el ends here