Mercurial > hg > xemacs-beta
view lisp/code-init.el @ 5353:38e24b8be4ea
Improve the lexical scoping in #'block, #'return-from.
lisp/ChangeLog addition:
2011-02-07 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el:
* bytecomp.el (byte-compile-initial-macro-environment):
Shadow `block', `return-from' here, we implement them differently
when byte-compiling.
* bytecomp.el (byte-compile-active-blocks): New.
* bytecomp.el (byte-compile-block-1): New.
* bytecomp.el (byte-compile-return-from-1): New.
* bytecomp.el (return-from-1): New.
* bytecomp.el (block-1): New.
These are two aliases that exist to have their own associated
byte-compile functions, which functions implement `block' and
`return-from'.
* cl-extra.el (cl-macroexpand-all):
Fix a bug here when macros in the environment have been compiled.
* cl-macs.el (block):
* cl-macs.el (return):
* cl-macs.el (return-from):
Be more careful about lexical scope in these macros.
* cl.el:
* cl.el ('cl-block-wrapper): Removed.
* cl.el ('cl-block-throw): Removed.
These aren't needed in code generated by this XEmacs. They
shouldn't be needed in code generated by XEmacs 21.4, but if it
turns out the packages do need them, we can put them back.
2011-01-30 Mike Sperber <mike@xemacs.org>
* font-lock.el (font-lock-fontify-pending-extents): Don't fail if
`font-lock-mode' is unset, which can happen in the middle of
`revert-buffer'.
2011-01-23 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (delete):
* cl-macs.el (delq):
* cl-macs.el (remove):
* cl-macs.el (remq):
Don't use the compiler macro if these functions were given the
wrong number of arguments, as happens in lisp-tests.el.
* cl-seq.el (remove, remq): Removed.
I added these to subr.el, and forgot to remove them from here.
2011-01-22 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-setq, byte-compile-set):
Remove kludge allowing keywords' values to be set, all the code
that does that is gone.
* cl-compat.el (elt-satisfies-test-p):
* faces.el (set-face-parent):
* faces.el (face-doc-string):
* gtk-font-menu.el:
* gtk-font-menu.el (gtk-reset-device-font-menus):
* msw-font-menu.el:
* msw-font-menu.el (mswindows-reset-device-font-menus):
* package-get.el (package-get-installedp):
* select.el (select-convert-from-image-data):
* sound.el:
* sound.el (load-sound-file):
* x-font-menu.el (x-reset-device-font-menus-core):
Don't quote keywords, they're self-quoting, and the
win from backward-compatibility is sufficiently small now that the
style problem overrides it.
2011-01-22 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (block, return-from): Require that NAME be a symbol
in these macros, as always documented in the #'block docstring and
as required by Common Lisp.
* descr-text.el (unidata-initialize-unihan-database):
Correct the use of non-symbols in #'block and #'return-from in
this function.
2011-01-15 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (concatenate): Accept more complicated TYPEs in this
function, handing the sequences over to #'coerce if we don't
understand them here.
* cl-macs.el (inline): Don't proclaim #'concatenate as inline, its
compiler macro is more useful than doing that.
2011-01-11 Aidan Kehoe <kehoea@parhasard.net>
* subr.el (delete, delq, remove, remq): Move #'remove, #'remq
here, they don't belong in cl-seq.el; move #'delete, #'delq here
from fns.c, implement them in terms of #'delete*, allowing support
for sequences generally.
* update-elc.el (do-autoload-commands): Use #'delete*, not #'delq
here, now the latter's no longer dumped.
* cl-macs.el (delete, delq): Add compiler macros transforming
#'delete and #'delq to #'delete* calls.
2011-01-10 Aidan Kehoe <kehoea@parhasard.net>
* dialog.el (make-dialog-box): Correct a misplaced parenthesis
here, thank you Mats Lidell in 87zkr9gqrh.fsf@mail.contactor.se !
2011-01-02 Aidan Kehoe <kehoea@parhasard.net>
* dialog.el (make-dialog-box):
* list-mode.el (display-completion-list):
These functions used to use cl-parsing-keywords; change them to
use defun* instead, fixing the build. (Not sure what led to me
not including this change in d1b17a33450b!)
2011-01-02 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (define-star-compiler-macros):
Make sure the form has ITEM and LIST specified before attempting
to change to calls with explicit tests; necessary for some tests
in lisp-tests.el to compile correctly.
(stable-union, stable-intersection): Add compiler macros for these
functions, in the same way we do for most of the other functions
in cl-seq.el.
2011-01-01 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (dolist, dotimes, do-symbols, macrolet)
(symbol-macrolet):
Define these macros with defmacro* instead of parsing the argument
list by hand, for the sake of style and readability; use backquote
where appropriate, instead of calling #'list and and friends, for
the same reason.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* x-misc.el (device-x-display):
Provide this function, documented in the Lispref for years, but
not existing previously. Thank you Julian Bradfield, thank you
Jeff Mincy.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* cl-seq.el:
Move the heavy lifting from this file to C. Dump the
cl-parsing-keywords macro, but don't use defun* for the functions
we define that do take keywords, dynamic scope lossage makes that
not practical.
* subr.el (sort, fillarray): Move these aliases here.
(map-plist): #'nsublis is now built-in, but at this point #'eql
isn't necessarily available as a test; use #'eq.
* obsolete.el (cl-delete-duplicates): Make this available for old
compiler macros and old code.
(memql): Document that this is equivalent to #'member*, and worse.
* cl.el (adjoin, subst): Removed. These are in C.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* simple.el (assoc-ignore-case): Remove a duplicate definition of
this function (it's already in subr.el).
* iso8859-1.el (char-width):
On non-Mule, make this function equivalent to that produced by
(constantly 1), but preserve its docstring.
* subr.el (subst-char-in-string): Define this in terms of
#'substitute, #'nsubstitute.
(string-width): Define this using #'reduce and #'char-width.
(char-width): Give this a simpler definition, it makes far more
sense to check for mule at load time and redefine, as we do in
iso8859-1.el.
(store-substring): Implement this in terms of #'replace, now
#'replace is cheap.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* update-elc.el (lisp-files-needed-for-byte-compilation)
(lisp-files-needing-early-byte-compilation):
cl-macs belongs in the former, not the latter, it is as
fundamental as bytecomp.el.
2010-12-30 Aidan Kehoe <kehoea@parhasard.net>
* cl.el:
Provde the Common Lisp program-error, type-error as error
symbols. This doesn't nearly go far enough for anyone using the
Common Lisp errors.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (delete-duplicates):
If the form has an incorrect number of arguments, don't attempt a
compiler macroexpansion.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (cl-safe-expr-p):
Forms that start with the symbol lambda are also safe.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (= < > <= >=):
For these functions' compiler macros, the optimisation is safe
even if the first and the last arguments have side effects, since
they're only used the once.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (inline-side-effect-free-compiler-macros):
Unroll a loop here at macro-expansion time, so these compiler
macros are compiled. Use #'eql instead of #'eq in a couple of
places for better style.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (notany, notevery): Avoid some dynamic scope
stupidity with local variable names in these functions, when they
weren't prefixed with cl-; go into some more detail in the doc
strings.
2010-12-29 Aidan Kehoe <kehoea@parhasard.net>
* byte-optimize.el (side-effect-free-fns): #'remove, #'remq are
free of side-effects.
(side-effect-and-error-free-fns):
Drop dot, dot-marker from the list.
2010-11-17 Aidan Kehoe <kehoea@parhasard.net>
* cl-extra.el (coerce):
In the argument list, name the first argument OBJECT, not X; the
former name was always used in the doc string and is clearer.
Handle vector type specifications which include the length of the
target sequence, error if there's a mismatch.
* cl-macs.el (cl-make-type-test): Handle type specifications
starting with the symbol 'eql.
2010-11-14 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (eql): Don't remove the byte-compile property of this
symbol. That was necessary to override a bug in bytecomp.el where
#'eql was confused with #'eq, which bug we no longer have.
If neither expression is constant, don't attempt to handle the
expression in this compiler macro, leave it to byte-compile-eql,
which produces better code anyway.
* bytecomp.el (eq): #'eql is not the function associated with the
byte-eq byte code.
(byte-compile-eql): Add an explicit compile method for this
function, for cases where the cl-macs compiler macro hasn't
reduced it to #'eq or #'equal.
2010-10-25 Aidan Kehoe <kehoea@parhasard.net>
Add compiler macros and compilation sanity-checking for various
functions that take keywords.
* byte-optimize.el (side-effect-free-fns): #'symbol-value is
side-effect free and not error free.
* bytecomp.el (byte-compile-normal-call): Check keyword argument
lists for sanity; store information about the positions where
keyword arguments start using the new byte-compile-keyword-start
property.
* cl-macs.el (cl-const-expr-val): Take a new optional argument,
cl-not-constant, defaulting to nil, in this function; return it if
the expression is not constant.
(cl-non-fixnum-number-p): Make this into a separate function, we
want to pass it to #'every.
(eql): Use it.
(define-star-compiler-macros): Use the same code to generate the
member*, assoc* and rassoc* compiler macros; special-case some
code in #'add-to-list in subr.el.
(remove, remq): Add compiler macros for these two functions, in
preparation for #'remove being in C.
(define-foo-if-compiler-macros): Transform (remove-if-not ...) calls to
(remove ... :if-not) at compile time, which will be a real win
once the latter is in C.
(define-substitute-if-compiler-macros)
(define-subst-if-compiler-macros): Similarly for these functions.
(delete-duplicates): Change this compiler macro to use
#'plists-equal; if we don't have information about the type of
SEQUENCE at compile time, don't bother attempting to inline the
call, the function will be in C soon enough.
(equalp): Remove an old commented-out compiler macro for this, if
we want to see it it's in version control.
(subst-char-in-string): Transform this to a call to nsubstitute or
nsubstitute, if that is appropriate.
* cl.el (ldiff): Don't call setf here, this makes for a load-time
dependency problem in cl-macs.el
2010-06-14 Stephen J. Turnbull <stephen@xemacs.org>
* term/vt100.el:
Refer to XEmacs, not GNU Emacs, in permissions.
* term/bg-mouse.el:
* term/sup-mouse.el:
Put copyright notice in canonical "Copyright DATE AUTHOR" form.
Refer to XEmacs, not GNU Emacs, in permissions.
* site-load.el:
Add permission boilerplate.
* mule/canna-leim.el:
* alist.el:
Refer to XEmacs, not APEL/this program, in permissions.
* mule/canna-leim.el:
Remove my copyright, I've assigned it to the FSF.
2010-06-14 Stephen J. Turnbull <stephen@xemacs.org>
* gtk.el:
* gtk-widget-accessors.el:
* gtk-package.el:
* gtk-marshal.el:
* gtk-compose.el:
* gnome.el:
Add copyright notice based on internal evidence.
2010-06-14 Stephen J. Turnbull <stephen@xemacs.org>
* easymenu.el: Add reference to COPYING to permission notice.
* gutter.el:
* gutter-items.el:
* menubar-items.el:
Fix typo "Xmacs" in permissions notice.
2010-06-14 Stephen J. Turnbull <stephen@xemacs.org>
* auto-save.el:
* font.el:
* fontconfig.el:
* mule/kinsoku.el:
Add "part of XEmacs" text to permission notice.
2010-10-14 Aidan Kehoe <kehoea@parhasard.net>
* byte-optimize.el (side-effect-free-fns):
* cl-macs.el (remf, getf):
* cl-extra.el (tailp, cl-set-getf, cl-do-remf):
* cl.el (ldiff, endp):
Tighten up Common Lisp compatibility for #'ldiff, #'endp, #'tailp;
add circularity checking for the first two.
#'cl-set-getf and #'cl-do-remf were Lisp implementations of
#'plist-put and #'plist-remprop; change the names to aliases,
changes the macros that use them to using #'plist-put and
#'plist-remprop directly.
2010-10-12 Aidan Kehoe <kehoea@parhasard.net>
* abbrev.el (fundamental-mode-abbrev-table, global-abbrev-table):
Create both these abbrev tables using the usual
#'define-abbrev-table calls, rather than attempting to
special-case them.
* cl-extra.el: Force cl-macs to be loaded here, if cl-extra.el is
being loaded interpreted. Previously other, later files would
redundantly call (load "cl-macs") when interpreted, it's more
reasonable to do it here, once.
* cmdloop.el (read-quoted-char-radix): Use defcustom here, we
don't have any dump-order dependencies that would prevent that.
* custom.el (eval-when-compile): Don't load cl-macs when
interpreted or when byte-compiling, rely on cl-extra.el in the
former case and the appropriate entry in bytecomp-load-hook in the
latter. Get rid of custom-declare-variable-list, we have no
dump-time dependencies that would require it.
* faces.el (eval-when-compile): Don't load cl-macs when
interpreted or when byte-compiling.
* packages.el: Remove some inaccurate comments.
* post-gc.el (cleanup-simple-finalizers): Use #'delete-if-not
here, now the order of preloaded-file-list has been changed to
make it available.
* subr.el (custom-declare-variable-list): Remove. No need for it.
Also remove a stub define-abbrev-table from this file, given the
current order of preloaded-file-list there's no need for it.
2010-10-10 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-constp) Forms quoted with FUNCTION are
also constant.
(byte-compile-initial-macro-environment): In #'the, if FORM is
constant and does not match TYPE, warn at byte-compile time.
2010-10-10 Aidan Kehoe <kehoea@parhasard.net>
* backquote.el (bq-vector-contents, bq-list*): Remove; the former
is equivalent to (append VECTOR nil), the latter to (list* ...).
(bq-process-2): Use (append VECTOR nil) instead of using
#'bq-vector-contents to convert to a list.
(bq-process-1): Now we use list* instead of bq-list
* subr.el (list*): Moved from cl.el, since it is now required to
be available the first time a backquoted form is encountered.
* cl.el (list*): Move to subr.el.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* test-harness.el (Check-Message):
Add an omitted comma here, thank you the buildbot.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* hash-table.el (hash-table-key-list, hash-table-value-list)
(hash-table-key-value-alist, hash-table-key-value-plist):
Remove some useless #'nreverse calls in these files; our hash
tables have no order, it's not helpful to pretend they do.
* behavior.el (read-behavior):
Do the same in this file, in some code evidently copied from
hash-table.el.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* info.el (Info-insert-dir):
* format.el (format-deannotate-region):
* files.el (cd, save-buffers-kill-emacs):
Use #'some, #'every and related functions for applying boolean
operations to lists, instead of rolling our own ones that cons and
don't short-circuit.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-initial-macro-environment):
* cl-macs.el (the):
Rephrase the docstring, make its implementation when compiling
files a little nicer.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* descr-text.el (unidata-initialize-unicodedata-database)
(unidata-initialize-unihan-database, describe-char-unicode-data)
(describe-char-unicode-data):
Wrap calls to the database functions with (with-fboundp ...),
avoiding byte compile warnings on builds without support for the
database functions.
(describe-char): (reduce #'max ...), not (apply #'max ...), no
need to cons needlessly.
(describe-char): Remove a redundant lambda wrapping
#'extent-properties.
(describe-char-unicode-data): Call #'nsubst when replacing "" with
nil in the result of #'split-string, instead of consing inside
mapcar.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* x-faces.el (x-available-font-sizes):
* specifier.el (let-specifier):
* package-ui.el (pui-add-required-packages):
* msw-faces.el (mswindows-available-font-sizes):
* modeline.el (modeline-minor-mode-menu):
* minibuf.el (minibuf-directory-files):
Replace the O2N (delq nil (mapcar (lambda (W) (and X Y)) Z)) with
the ON (mapcan (lambda (W) (and X (list Y))) Z) in these files.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* cl-macs.el (= < > <= >=):
When these functions are handed more than two arguments, and those
arguments have no side effects, transform to a series of two
argument calls, avoiding funcall in the byte-compiled code.
* mule/mule-cmds.el (finish-set-language-environment):
Take advantage of this change in a function called 256 times at
startup.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-function-form, byte-compile-quote)
(byte-compile-quote-form):
Warn at compile time, and error at runtime, if a (quote ...) or a
(function ...) form attempts to quote more than one object.
2010-09-16 Aidan Kehoe <kehoea@parhasard.net>
* byte-optimize.el (byte-optimize-apply): Transform (apply 'nconc
(mapcar ...)) to (mapcan ...); warn about use of the first idiom.
* update-elc.el (do-autoload-commands):
* packages.el (packages-find-package-library-path):
* frame.el (frame-list):
* extents.el (extent-descendants):
* etags.el (buffer-tag-table-files):
* dumped-lisp.el (preloaded-file-list):
* device.el (device-list):
* bytecomp-runtime.el (proclaim-inline, proclaim-notinline)
Use #'mapcan, not (apply #'nconc (mapcar ...) in all these files.
* bytecomp-runtime.el (eval-when-compile, eval-and-compile):
In passing, mention that these macros also evaluate the body when
interpreted.
tests/ChangeLog addition:
2011-02-07 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-tests.el:
Test lexical scope for `block', `return-from'; add a
Known-Bug-Expect-Failure for a contorted example that fails when
byte-compiled.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Mon, 07 Feb 2011 12:01:24 +0000 |
| parents | d2ec55325515 |
| children | 308d34e9f07d |
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;;; code-init.el --- Handle coding system default values ;; Copyright (C) 2001, 2002, 2003, 2010 Ben Wing. ;; 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. ;;; Commentary: ;; Author: Ben wing, 2001? ;; Placed in a separate file so it can be loaded after the various ;; coding systems have been created, because we'll be using them at ;; load time. ;; #### Issues (this discussion probably belongs elsewhere) ;; 1. "Big" characters are unrepresentable. Should give error, warning, ;; not just substitute "~". ;; 2. 21.4 compatibility? ;; 3. make-char: non-mule barfs on non-iso8859-1. ;;; Code: (defcustom eol-detection-enabled-p (or (featurep 'mule) (memq system-type '(windows-nt cygwin32)) (featurep 'unix-default-eol-detection)) "True if XEmacs automatically detects the EOL type when reading files. Normally, this is always the case on Windows or when international (Mule) support is compiled into this XEmacs. Otherwise, it is currently off by default, but this may change. Don't set this; nothing will happen. Instead, use the Options menu or `set-eol-detection'." :group 'encoding :type 'boolean ;; upon initialization, we don't want the whole business of ;; set-eol-detection to be called. We will init everything appropriately ;; later in the same file, when reset-language-environment is called. :initialize #'(lambda (var val) (setq eol-detection-enabled-p (eval val))) :set #'(lambda (var val) (set-eol-detection val) (setq eol-detection-enabled-p val))) (defun set-eol-detection (flag) "Enable (if FLAG is non-nil) or disable automatic EOL detection of files. EOL detection is enabled by default on Windows or when international (Mule) support is compiled into this XEmacs. Otherwise, it is currently off by default, but this may change. NOTE: You *REALLY* should not turn off EOL detection on Windows! Your files will have lots of annoying ^M's in them if you do this." (dolist (x '(bfcs-for-read keyboard process-read no-conv-cs)) (set-coding-system-variable x (coding-system-change-eol-conversion (get-coding-system-variable x) (if flag nil 'lf))))) (defun coding-system-current-system-configuration () "Function to decide which default coding system configuration applies." (cond ((featurep 'cygwin-use-utf-8) 'cygwin-utf-8) ((memq system-type '(windows-nt cygwin32)) (if (featurep 'mule) 'windows-mule 'windows-no-mule)) ((featurep 'mule) 'mule) (eol-detection-enabled-p 'no-mule-eol-detection) (t 'no-mule-no-eol-detection))) (defvar coding-system-default-configuration-table (make-hash-table)) (defun define-coding-system-default-configuration (name doc props) (puthash name (nconc `(doc ,doc) props) coding-system-default-configuration-table)) ;; NOTE NOTE NOTE: These values may get overridden when the language ;; environment is initialized (set-language-environment-coding-systems). (define-coding-system-default-configuration 'no-mule-no-eol-detection "No Mule support, EOL detection not enabled." '(bfcs-for-read binary default-bfcs binary process-read binary process-write binary keyboard binary native binary no-conv-cs binary terminal binary)) (define-coding-system-default-configuration 'no-mule-eol-detection "No Mule support, EOL detection enabled." '(bfcs-for-read raw-text default-bfcs binary process-read raw-text process-write binary keyboard raw-text native binary no-conv-cs raw-text terminal binary)) (define-coding-system-default-configuration 'mule "Mule support enabled." '(bfcs-for-read undecided default-bfcs iso-2022-8 process-read undecided process-write binary keyboard undecided-unix native binary no-conv-cs raw-text terminal binary)) (define-coding-system-default-configuration 'windows-no-mule "Microsoft Windows, no Mule support." '(bfcs-for-read raw-text default-bfcs raw-text-dos process-read raw-text process-write raw-text keyboard raw-text native raw-text-dos no-conv-cs raw-text terminal binary)) (define-coding-system-default-configuration 'windows-mule "Microsoft Windows, Mule support enabled." '(bfcs-for-read undecided default-bfcs mswindows-multibyte-dos process-read undecided process-write mswindows-multibyte-system-default keyboard undecided-unix native mswindows-multibyte-system-default-dos no-conv-cs mswindows-multibyte terminal mswindows-multibyte-unix)) (define-coding-system-default-configuration 'cygwin-utf-8 "Mule support enabled." '(bfcs-for-read undecided default-bfcs utf-8 process-read utf-8 process-write utf-8 keyboard utf-8 native utf-8 no-conv-cs utf-8 terminal utf-8)) (defvar coding-system-default-variable-list '(bfcs-for-read default-bfcs native keyboard terminal process-read process-write no-conv-cs)) (defun get-coding-system-variable (var) "Return the value of a basic coding system variable. This is intended as a uniform interface onto the coding system settings that control how encoding detection and conversion works. See `coding-system-variable-default-value' for a list of the possible values of VAR." (case var (bfcs-for-read buffer-file-coding-system-for-read) (default-bfcs (default-value 'buffer-file-coding-system)) (native (coding-system-aliasee 'native)) (keyboard (coding-system-aliasee 'keyboard)) (terminal (coding-system-aliasee 'terminal)) (process-read (car default-process-coding-system)) (process-write (cdr default-process-coding-system)) (no-conv-cs (coding-category-system 'no-conversion)) (t (error 'invalid-constant "Invalid coding system variable" var)))) (defun set-coding-system-variable (var value) "Set a basic coding system variable to VALUE. This is intended as a uniform interface onto the coding system settings that control how encoding detection and conversion works. See `coding-system-variable-default-value' for a list of the possible values of VAR." (case var (bfcs-for-read (set-buffer-file-coding-system-for-read value)) (default-bfcs (set-default-buffer-file-coding-system value)) (native (define-coding-system-alias 'native value)) (keyboard (set-keyboard-coding-system value)) (terminal (set-terminal-coding-system value)) (process-read (setq default-process-coding-system (cons value (cdr default-process-coding-system)))) (process-write (setq default-process-coding-system (cons (car default-process-coding-system) value))) (no-conv-cs (set-coding-category-system 'no-conversion value)) (t (error 'invalid-constant "Invalid coding system variable" var)))) (defun coding-system-variable-default-value (var &optional config) "Return the appropriate default value for a coding system variable. VAR specifies the variable, and CONFIG the configuration, defaulting to the current system configuration (as returned by `coding-system-current-system-configuration'). The table of default values looks like this: (see below for abbreviations) NoMule NoMuleEOL Mule MSW MSWMule CygUTF ------------------------------------------------------------------------------ bfcs-for-read binary raw-text undecided raw-text undecided undecided default-bfcs binary binary iso-2022-8 raw-text-dos MSW-MB-dos utf-8 native binary binary binary raw-text-dos MSW-MB-SD-dos utf-8 keyboard binary raw-text undecided- raw-text undecided- utf-8 unix unix terminal binary binary binary binary MSW-MB-unix utf-8 process-read binary raw-text undecided raw-text undecided utf-8 process-write binary binary binary raw-text MSW-MB-SD utf-8 no-conv-cs binary raw-text raw-text raw-text MSW-MB utf-8 VAR can be one of: `bfcs-for-read' Lisp variable of the same name; the default coding system used when reading in a file, in the absence of more specific settings. (See `insert-file-contents' for a description of exactly how a file's coding system is determined when it's read in.) `default-bfcs' Default value of `buffer-file-coding-system', the buffer-local variable specifying a file's coding system to be used when it is written out. Set using `set-default-buffer-file-coding-system' (or the primitive `setq-default'). When a file is read in, `buffer-file-coding-system' for that file is set from the coding system used to read the file in; the default value applies to newly created files. `native' The coding system named `native'. Changed using `define-coding-system-alias'. Used internally when passing text to or from system API's, unless the particular API specifies another coding system. `keyboard' #### fill in `terminal' #### fill in `process-read' #### fill in `process-write' #### fill in `no-conv-cs' Coding system used when category `no-conversion' is detected. CONFIG is one of: (abbreviations in parens) `no-mule-no-eol-detection' (NoMule) Non-Windows, no Mule support, no automatic EOL detection. (Controlled by `eol-detection-enabled-p', which is set by the command-line flag -enable-eol-detection or the configure flag --with-default-eol-detection.) `unix-no-mule-eol-detection' (NoMuleEOL) Non-Windows, no Mule support, automatic EOL detection. `unix-mule' (Mule) Non-Windows, Mule support. `windows-no-mule' (MSW) MS Windows or old Cygwin, no Mule support. `windows-mule' (MSWMule) MS Windows or old Cygwin, Mule support. `cygwin-utf-8' (CygUTF) Cygwin 1.7 or later, which uses UTF-8 consistently. The following coding system abbreviations are also used in the table: MSW-MB = mswindows-multibyte MSW-MB = mswindows-multibyte-system-default " (setq config (or config (coding-system-current-system-configuration))) (or (memq var coding-system-default-variable-list) (error 'invalid-constant "Invalid coding system variable" var)) (let ((props (gethash config coding-system-default-configuration-table))) (or props (error 'invalid-constant "Invalid coding system configuration" config)) (getf props var))) (defun reset-coding-system-defaults (&optional config) "Reset all basic coding system variables are set to their default values. See `coding-system-variable-default-value'." (setq config (or config (coding-system-current-system-configuration))) (mapcar #'(lambda (var) (set-coding-system-variable var (coding-system-variable-default-value var config))) coding-system-default-variable-list)) (defun reset-coding-categories-to-default () "Reset all coding categories (used for automatic detection) to their defaults. The order of priorities of coding categories and the coding system bound to each category are as follows: coding category coding system -------------------------------------------------- utf-16-little-endian-bom utf-16-little-endian utf-16-bom utf-16-bom utf-8-bom utf-8-bom iso-7 iso-2022-7bit no-conversion raw-text utf-8 utf-8 iso-8-1 iso-8859-1 iso-8-2 ctext (iso-8859-1 alias) iso-8-designate ctext (iso-8859-1 alias) iso-lock-shift iso-2022-lock shift-jis shift-jis big5 big5 utf-16-little-endian utf-16-little-endian utf-16 utf-16 ucs-4 ucs-4 " ;; #### What a mess! This needs to be overhauled. ;; The old table (from FSF synch?) was not what we use (cf mule-coding.el), ;; and as documented iso-8-designate is inconsistent with iso-2022-8bit-ss2. ;; The order of priorities of coding categories and the coding system ;; bound to each category are as follows: ;; ;; coding category coding system ;; -------------------------------------------------- ;; iso-8-2 iso-8859-1 ;; iso-8-1 iso-8859-1 ;; iso-7 iso-2022-7bit ;; iso-lock-shift iso-2022-lock ;; iso-8-designate iso-2022-8bit-ss2 ;; no-conversion raw-text ;; shift-jis shift_jis ;; big5 big5 ;; ucs-4 ---- ;; utf-8 ---- (when (featurep 'mule) (set-coding-category-system 'iso-7 'iso-2022-7) (set-coding-category-system 'iso-8-1 'iso-8859-1) (set-coding-category-system 'iso-8-2 'ctext) (set-coding-category-system 'iso-lock-shift 'iso-2022-lock) (set-coding-category-system 'iso-8-designate 'ctext) (if (find-coding-system 'shift-jis) (set-coding-category-system 'shift-jis 'shift-jis)) (if (find-coding-system 'big5) (set-coding-category-system 'big5 'big5)) ) (set-coding-category-system 'no-conversion (coding-system-variable-default-value 'no-conv-cs)) (set-coding-category-system 'ucs-4 'ucs-4) (set-coding-category-system 'utf-8 'utf-8) (set-coding-category-system 'utf-8-bom 'utf-8-bom) (set-coding-category-system 'utf-16-little-endian 'utf-16-little-endian) (set-coding-category-system 'utf-16 'utf-16) (set-coding-category-system 'utf-16-little-endian-bom 'utf-16-little-endian-bom) (set-coding-category-system 'utf-16-bom 'utf-16-bom) (set-coding-priority-list (if (featurep 'mule) '(utf-16-little-endian-bom utf-16-bom utf-8-bom iso-7 no-conversion utf-8 iso-8-1 iso-8-2 iso-8-designate iso-lock-shift shift-jis big5 utf-16-little-endian utf-16 ucs-4) '(utf-16-little-endian-bom utf-16-bom utf-8-bom no-conversion utf-8 utf-16-little-endian utf-16 ucs-4)))) (defun reset-language-environment () "Reset coding system environment of XEmacs to the default status. All basic coding system variables are set to their default values, as are the coding categories used for automatic detection and their priority. BE VERY CERTAIN YOU WANT TO DO THIS BEFORE DOING IT! For more information, see `reset-coding-system-defaults' and `reset-coding-categories-to-default'." (reset-coding-system-defaults) (reset-coding-categories-to-default)) ;; Initialize everything so that the remaining Lisp files can contain ;; extended characters. (They will be in ISO-7 format) ;; !!####!! The Lisp files should all be in UTF-8!!! That way, all ;; special characters appear as high bits and there's no problem with ;; the Lisp parser trying to read a Mule file and getting all screwed ;; up. The only other thing then would be characters; we just need to ;; modify the Lisp parser to read the stuff directly after a ? as ;; UTF-8 and return a 30-bit value directly, and modify the character ;; routines a bit to allow such a beast to exist. MAKE IT A POINT TO ;; IMPLEMENT THIS AS ONE OF MY FUTURE PROJECTS. --ben (reset-language-environment) (coding-system-put 'raw-text 'safe-charsets '(ascii control-1 latin-iso8859-1)) ;;; code-init.el ends here