annotate lisp/cl.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 d1b17a33450b
children 22c4e67a2e69 0af042a0c116
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1 ;;; cl.el --- Common Lisp extensions for XEmacs Lisp
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3 ;; Copyright (C) 1993, 1997 Free Software Foundation, Inc.
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4 ;; Copyright (C) 2010 Ben Wing.
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6 ;; Author: Dave Gillespie <daveg@synaptics.com>
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7 ;; Maintainer: XEmacs Development Team
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8 ;; Version: 2.02
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9 ;; Keywords: extensions, dumped, lisp
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10
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11 ;; This file is part of XEmacs.
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12
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13 ;; XEmacs is free software; you can redistribute it and/or modify it
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14 ;; under the terms of the GNU General Public License as published by
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15 ;; the Free Software Foundation; either version 2, or (at your option)
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16 ;; any later version.
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18 ;; XEmacs is distributed in the hope that it will be useful, but
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19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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21 ;; General Public License for more details.
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22
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23 ;; You should have received a copy of the GNU General Public License
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24 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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25 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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26 ;; 02111-1307, USA.
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28 ;;; Synched up with: FSF 21.3.
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30 ;;; Commentary:
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31
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32 ;; This file is dumped with XEmacs.
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33
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34 ;; These are extensions to Emacs Lisp that provide a degree of
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35 ;; Common Lisp compatibility, beyond what is already built-in
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36 ;; in Emacs Lisp.
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37 ;;
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38 ;; This package was written by Dave Gillespie; it is a complete
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39 ;; rewrite of Cesar Quiroz's original cl.el package of December 1986.
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40 ;;
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41 ;; Bug reports, comments, and suggestions are welcome!
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42
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43 ;; This file contains the portions of the Common Lisp extensions
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44 ;; package which should always be present.
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46
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47 ;;; Future notes:
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48
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49 ;; Once Emacs 19 becomes standard, many things in this package which are
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50 ;; messy for reasons of compatibility can be greatly simplified. For now,
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51 ;; I prefer to maintain one unified version.
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53
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54 ;;; Change Log:
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55
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56 ;; Version 2.02 (30 Jul 93):
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57 ;; * Added "cl-compat.el" file, extra compatibility with old package.
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58 ;; * Added `lexical-let' and `lexical-let*'.
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59 ;; * Added `define-modify-macro', `callf', and `callf2'.
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60 ;; * Added `ignore-errors'.
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61 ;; * Changed `(setf (nthcdr N PLACE) X)' to work when N is zero.
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62 ;; * Merged `*gentemp-counter*' into `*gensym-counter*'.
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63 ;; * Extended `subseq' to allow negative START and END like `substring'.
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64 ;; * Added `in-ref', `across-ref', `elements of-ref' loop clauses.
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65 ;; * Added `concat', `vconcat' loop clauses.
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66 ;; * Cleaned up a number of compiler warnings.
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67
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68 ;; Version 2.01 (7 Jul 93):
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69 ;; * Added support for FSF version of Emacs 19.
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70 ;; * Added `add-hook' for Emacs 18 users.
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71 ;; * Added `defsubst*' and `symbol-macrolet'.
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72 ;; * Added `maplist', `mapc', `mapl', `mapcan', `mapcon'.
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73 ;; * Added `map', `concatenate', `reduce', `merge'.
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74 ;; * Added `revappend', `nreconc', `tailp', `tree-equal'.
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75 ;; * Added `assert', `check-type', `typecase', `typep', and `deftype'.
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76 ;; * Added destructuring and `&environment' support to `defmacro*'.
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77 ;; * Added destructuring to `loop', and added the following clauses:
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78 ;; `elements', `frames', `overlays', `intervals', `buffers', `key-seqs'.
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79 ;; * Renamed `delete' to `delete*' and `remove' to `remove*'.
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80 ;; * Completed support for all keywords in `remove*', `substitute', etc.
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81 ;; * Added `most-positive-float' and company.
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82 ;; * Fixed hash tables to work with latest Lucid Emacs.
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83 ;; * `proclaim' forms are no longer compile-time-evaluating; use `declaim'.
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84 ;; * Syntax for `warn' declarations has changed.
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85 ;; * Improved implementation of `random*'.
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86 ;; * Moved most sequence functions to a new file, cl-seq.el.
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87 ;; * Moved `eval-when' into cl-macs.el.
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88 ;; * Moved `pushnew' and `adjoin' to cl.el for most common cases.
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89 ;; * Moved `provide' forms down to ends of files.
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90 ;; * Changed expansion of `pop' to something that compiles to better code.
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91 ;; * Changed so that no patch is required for Emacs 19 byte compiler.
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92 ;; * Made more things dependent on `optimize' declarations.
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93 ;; * Added a partial implementation of struct print functions.
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94 ;; * Miscellaneous minor changes.
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95
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96 ;; Version 2.00:
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97 ;; * First public release of this package.
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98
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99
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100 ;;; Code:
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101
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102 (defvar cl-optimize-speed 1)
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103 (defvar cl-optimize-safety 1)
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104
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105 (defvar custom-print-functions nil
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106 "This is a list of functions that format user objects for printing.
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107 Each function is called in turn with three arguments: the object, the
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108 stream, and the print level (currently ignored). If it is able to
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109 print the object it returns true; otherwise it returns nil and the
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110 printer proceeds to the next function on the list.
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111
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112 This variable is not used at present, but it is defined in hopes that
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113 a future Emacs interpreter will be able to use it.")
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114
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115 ;;; Predicates.
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116
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117 (defun eql (a b) ; See compiler macro in cl-macs.el
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118 "Return t if the arguments are the same Lisp object, or numerically equal.
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119
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120 They must be of the same type; the difference between `eq' and `eql' is most
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121 relevant when it comes to the non-fixnum number types. In this
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122 implementation, fixnums of the same numeric value are always `eq', but this
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123 is not true for other numeric types, among them floats, bignums and ratios,
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124 if available.
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125
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126 See also `=' (which doesn't require that its arguments be of the same type,
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127 but only accepts numeric arguments, characters and markers) and `equal'."
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128 (or (eq a b) (and (numberp a) (equal a b))))
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129
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130 ;;; Generalized variables. These macros are defined here so that they
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131 ;;; can safely be used in .emacs files.
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132
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133 (defmacro incf (place &optional x)
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134 "Increment PLACE by X (1 by default).
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135 PLACE may be a symbol, or any generalized variable allowed by `setf'.
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136 The return value is the incremented value of PLACE."
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137 (if (symbolp place)
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138 (list 'setq place (if x (list '+ place x) (list '1+ place)))
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139 ;; XEmacs byte-compiler optimizes (+ FOO 1) to (1+ FOO), so this
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140 ;; is OK.
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141 (list 'callf '+ place (or x 1))))
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142
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143 (defmacro decf (place &optional x)
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144 "Decrement PLACE by X (1 by default).
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145 PLACE may be a symbol, or any generalized variable allowed by `setf'.
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146 The return value is the decremented value of PLACE."
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147 (if (symbolp place)
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148 (list 'setq place (if x (list '- place x) (list '1- place)))
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149 (list 'callf '- place (or x 1))))
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150
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151 (defmacro pop (place)
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152 "Remove and return the head of the list stored in PLACE.
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153 Analogous to (prog1 (car PLACE) (setf PLACE (cdr PLACE))), though more
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154 careful about evaluating each argument only once and in the right order.
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155 PLACE may be a symbol, or any generalized variable allowed by `setf'."
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156 (if (symbolp place)
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157 `(car (prog1 ,place (setq ,place (cdr ,place))))
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158 (cl-do-pop place)))
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159
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160 (defmacro push (newelt listname)
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161 "Add NEWELT at the beginning of the list stored in LISTNAME.
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162 Analogous to (setf LISTNAME (cons NEWELT LISTNAME)), though more careful
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163 about evaluating each argument only once and in the right order. LISTNAME
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164 may be a symbol, or any generalized variable allowed by `setf'; that is, it
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165 does not necessarily have to be a list, though `push' is most often used on
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166 lists. "
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167 (if (symbolp listname) `(setq ,listname (cons ,newelt ,listname))
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168 (list 'callf2 'cons newelt listname)))
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169
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170 (defmacro pushnew (newelt listname &rest keys)
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171 "Add NEWELT at the beginning of LISTNAME, unless it's already in LISTNAME.
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172 Like (push NEWELT LISTNAME), except that the list is unmodified if NEWELT is
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173 `eql' to an element already on the list.
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174 Keywords supported: :test :test-not :key
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175 See `member*' for the meaning of :test, :test-not and :key."
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176 (if (symbolp listname) (list 'setq listname
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177 (list* 'adjoin newelt listname keys))
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178 (list* 'callf2 'adjoin newelt listname keys)))
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179
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180 (defun cl-set-elt (seq n val)
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181 (if (listp seq) (setcar (nthcdr n seq) val) (aset seq n val)))
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182
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183 (defun cl-set-nthcdr (n list x)
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184 (if (<= n 0) x (setcdr (nthcdr (1- n) list) x) list))
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185
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186 (defun cl-set-buffer-substring (start end val)
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187 (save-excursion (delete-region start end)
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188 (goto-char start)
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189 (insert val)
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190 val))
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191
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192 (defun cl-set-substring (str start end val)
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193 (if end (if (< end 0) (incf end (length str)))
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194 (setq end (length str)))
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195 (if (< start 0) (incf start (length str)))
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196 (concat (and (> start 0) (substring str 0 start))
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197 val
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198 (and (< end (length str)) (substring str end))))
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199
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200 ;;; Control structures.
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201
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202 ;; The macros `when' and `unless' are so useful that we want them to
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203 ;; ALWAYS be available. So they've been moved from cl.el to eval.c.
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204 ;; Note: FSF Emacs moved them to subr.el in FSF 20.
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205
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206 (defalias 'cl-map-extents 'map-extents)
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207
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208 ;;; XEmacs; multiple values are in eval.c and cl-macs.el.
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209
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210 ;;; We no longer support `multiple-value-apply', which was ill-conceived to
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211 ;;; start with, is not specified by Common Lisp, and which nothing uses,
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212 ;;; according to Google Code Search, as of Sat Mar 14 23:31:35 GMT 2009.
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213
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214 (make-obsolete 'multiple-value-apply 'multiple-value-call)
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215
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216 ;;; Macros.
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217
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218 (defvar cl-macro-environment nil)
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219 ;; XEmacs: we renamed the internal function to macroexpand-internal
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220 ;; to avoid doc-file problems.
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221 (defvar cl-old-macroexpand (prog1 (symbol-function 'macroexpand-internal)
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222 (defalias 'macroexpand 'cl-macroexpand)))
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223
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224 (defun cl-macroexpand (cl-macro &optional cl-env)
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225 "Return result of expanding macros at top level of FORM.
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226 If FORM is not a macro call, it is returned unchanged.
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227 Otherwise, the macro is expanded and the expansion is considered
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228 in place of FORM. When a non-macro-call results, it is returned.
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229
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230 The second optional arg ENVIRONMENT specifies an environment of macro
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231 definitions to shadow the loaded ones for use in file byte-compilation."
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232 (let ((cl-macro-environment cl-env))
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233 (while (progn (setq cl-macro (funcall cl-old-macroexpand cl-macro cl-env))
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234 (and (symbolp cl-macro)
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235 (cdr (assq (symbol-name cl-macro) cl-env))))
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236 (setq cl-macro (cadr (assq (symbol-name cl-macro) cl-env))))
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237 cl-macro))
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238
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239 ;;; Declarations.
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240
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241 (defvar cl-compiling-file nil)
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242 (defun cl-compiling-file ()
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243 (or cl-compiling-file
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244 ;; XEmacs change
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245 ; (and (boundp 'outbuffer) (bufferp (symbol-value 'outbuffer))
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246 ; (equal (buffer-name (symbol-value 'outbuffer))
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247 ; " *Compiler Output*"))
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248 (and (boundp 'byte-compile-outbuffer)
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249 (bufferp (symbol-value 'byte-compile-outbuffer))
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250 (equal (buffer-name (symbol-value 'byte-compile-outbuffer))
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251 " *Compiler Output*"))
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252 ))
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253
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254 (defvar cl-proclaims-deferred nil)
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255
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256 (defun proclaim (spec)
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257 (if (fboundp 'cl-do-proclaim) (cl-do-proclaim spec t)
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258 (push spec cl-proclaims-deferred))
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259 nil)
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260
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261 (defmacro declaim (&rest specs)
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262 (let ((body (mapcar (function (lambda (x) (list 'proclaim (list 'quote x))))
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263 specs)))
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264 (if (cl-compiling-file) (list* 'eval-when '(compile load eval) body)
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265 (cons 'progn body)))) ; avoid loading cl-macs.el for eval-when
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266
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267 ;;; Symbols.
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268
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269 (defun cl-random-time ()
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270 (let* ((time (copy-sequence (current-time-string))) (i (length time)) (v 0))
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271 (while (>= (decf i) 0) (setq v (+ (* v 3) (aref time i))))
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272 (if-fboundp 'coerce-number
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273 (coerce-number v 'fixnum)
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274 v)))
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275
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276 (defvar *gensym-counter* (* (logand (cl-random-time) 1023) 100))
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277
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278 ;; XEmacs change: gensym and gentemp moved here from cl-macs.el
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279 (defun gensym (&optional arg)
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280 "Generate a new uninterned symbol.
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281 The name is made by appending a number to a prefix. If ARG is a string, it
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282 is the prefix, otherwise the prefix defaults to \"G\". If ARG is an integer,
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283 the internal counter is reset to that number before creating the name.
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284 There is no way to specify both using this function."
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285 (let ((prefix (if (stringp arg) arg "G"))
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286 (num (if (integerp arg) arg
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287 (prog1 *gensym-counter*
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288 (setq *gensym-counter* (1+ *gensym-counter*))))))
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289 (make-symbol (format "%s%d" prefix num))))
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290
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291 (defun gentemp (&optional arg)
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292 "Generate a new interned symbol with a unique name.
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293 The name is made by appending a number to ARG, default \"G\".
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294 If ARG is not a string, it is ignored."
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295 (let ((prefix (if (stringp arg) arg "G"))
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296 name)
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297 (while (intern-soft (setq name (format "%s%d" prefix *gensym-counter*)))
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298 (setq *gensym-counter* (1+ *gensym-counter*)))
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299 (intern name)))
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300
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301 ;;; Numbers.
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302
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303 ;; XEmacs change: ditch floatp-safe.
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304
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305 (defun plusp (number)
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306 "Return t if NUMBER is positive."
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307 (> number 0))
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308
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309 (defun minusp (number)
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310 "Return t if NUMBER is negative."
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311 (< number 0))
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312
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313 (defun oddp (integer)
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314 "Return t if INTEGER is odd."
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315 (eq (logand integer 1) 1))
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316
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317 (defun evenp (integer)
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318 "Return t if INTEGER is even."
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319 (eq (logand integer 1) 0))
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320
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321 ;; XEmacs addition
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322 (defalias 'cl-abs 'abs)
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323
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324 (defvar *random-state* (vector 'cl-random-state-tag -1 30 (cl-random-time)))
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325
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326 ;;; The following are set by code in cl-extra.el
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327 (defconst most-positive-float nil
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328 "The float closest in value to positive infinity.")
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329 (defconst most-negative-float nil
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330 "The float closest in value to negative infinity.")
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331 (defconst least-positive-float nil
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332 "The positive float closest in value to 0.")
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333 (defconst least-negative-float nil
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334 "The negative float closest in value to 0.")
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335 (defconst least-positive-normalized-float nil)
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336 (defconst least-negative-normalized-float nil)
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337 (defconst float-epsilon nil)
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338 (defconst float-negative-epsilon nil)
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339
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340 ;;; Sequence functions.
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341
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342 (defalias 'copy-seq 'copy-sequence)
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343
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344 ;; XEmacs; #'mapcar* is in C.
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345
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346 (defalias 'svref 'aref) ;; Compiler macro in cl-macs.el
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347
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348 ;;; List functions.
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349
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350 ;; These functions are made known to the byte-compiler by cl-macs.el
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351 ;; and turned into efficient car and cdr bytecodes.
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352
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353 (defalias 'first 'car)
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354 (defalias 'rest 'cdr)
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355
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356 ;; XEmacs change; this needs to error if handed a non-list.
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357 (defun endp (list)
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358 "Return t if LIST is nil, or nil if LIST is a cons. Error otherwise."
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359 (prog1
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360 (null list)
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361 (and list (atom list) (error 'wrong-type-argument #'listp list))))
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362
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363 ;; XEmacs change: make it a real function
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364 (defun second (x)
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365 "Return the second element of the list LIST."
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366 (car (cdr x)))
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367
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368 (defun third (x)
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369 "Return the third element of the list X."
428
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370 (car (cdr (cdr x))))
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371
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372 (defun fourth (x)
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373 "Return the fourth element of the list X."
428
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374 (nth 3 x))
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375
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376 (defun fifth (x)
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377 "Return the fifth element of the list X."
428
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378 (nth 4 x))
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379
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380 (defun sixth (x)
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381 "Return the sixth element of the list X."
428
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382 (nth 5 x))
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383
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384 (defun seventh (x)
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385 "Return the seventh element of the list X."
428
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386 (nth 6 x))
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387
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388 (defun eighth (x)
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389 "Return the eighth element of the list X."
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390 (nth 7 x))
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391
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392 (defun ninth (x)
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393 "Return the ninth element of the list X."
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394 (nth 8 x))
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395
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396 (defun tenth (x)
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397 "Return the tenth element of the list X."
428
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398 (nth 9 x))
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399
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400 ;; XEmacs change: Emacs defines caar, cadr, cdar, and cddr in subr.el.
428
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401 (defun caar (x)
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402 "Return the `car' of the `car' of X."
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403 (car (car x)))
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404
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405 (defun cadr (x)
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406 "Return the `car' of the `cdr' of X."
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407 (car (cdr x)))
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408
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409 (defun cdar (x)
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410 "Return the `cdr' of the `car' of X."
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411 (cdr (car x)))
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412
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413 (defun cddr (x)
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414 "Return the `cdr' of the `cdr' of X."
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415 (cdr (cdr x)))
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416
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417 (defun caaar (x)
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418 "Return the `car' of the `car' of the `car' of X."
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419 (car (car (car x))))
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420
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421 (defun caadr (x)
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422 "Return the `car' of the `car' of the `cdr' of X."
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423 (car (car (cdr x))))
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424
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425 (defun cadar (x)
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426 "Return the `car' of the `cdr' of the `car' of X."
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427 (car (cdr (car x))))
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428
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429 (defun caddr (x)
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430 "Return the `car' of the `cdr' of the `cdr' of X."
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431 (car (cdr (cdr x))))
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432
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433 (defun cdaar (x)
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434 "Return the `cdr' of the `car' of the `car' of X."
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435 (cdr (car (car x))))
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436
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437 (defun cdadr (x)
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438 "Return the `cdr' of the `car' of the `cdr' of X."
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439 (cdr (car (cdr x))))
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440
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441 (defun cddar (x)
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442 "Return the `cdr' of the `cdr' of the `car' of X."
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443 (cdr (cdr (car x))))
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444
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445 (defun cdddr (x)
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446 "Return the `cdr' of the `cdr' of the `cdr' of X."
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447 (cdr (cdr (cdr x))))
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448
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449 (defun caaaar (x)
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450 "Return the `car' of the `car' of the `car' of the `car' of X."
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451 (car (car (car (car x)))))
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452
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453 (defun caaadr (x)
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454 "Return the `car' of the `car' of the `car' of the `cdr' of X."
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455 (car (car (car (cdr x)))))
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456
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457 (defun caadar (x)
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458 "Return the `car' of the `car' of the `cdr' of the `car' of X."
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459 (car (car (cdr (car x)))))
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460
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461 (defun caaddr (x)
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462 "Return the `car' of the `car' of the `cdr' of the `cdr' of X."
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463 (car (car (cdr (cdr x)))))
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464
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465 (defun cadaar (x)
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466 "Return the `car' of the `cdr' of the `car' of the `car' of X."
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467 (car (cdr (car (car x)))))
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468
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469 (defun cadadr (x)
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470 "Return the `car' of the `cdr' of the `car' of the `cdr' of X."
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471 (car (cdr (car (cdr x)))))
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472
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473 (defun caddar (x)
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474 "Return the `car' of the `cdr' of the `cdr' of the `car' of X."
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475 (car (cdr (cdr (car x)))))
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476
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477 (defun cadddr (x)
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478 "Return the `car' of the `cdr' of the `cdr' of the `cdr' of X."
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479 (car (cdr (cdr (cdr x)))))
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480
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481 (defun cdaaar (x)
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482 "Return the `cdr' of the `car' of the `car' of the `car' of X."
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483 (cdr (car (car (car x)))))
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484
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485 (defun cdaadr (x)
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486 "Return the `cdr' of the `car' of the `car' of the `cdr' of X."
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487 (cdr (car (car (cdr x)))))
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488
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489 (defun cdadar (x)
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490 "Return the `cdr' of the `car' of the `cdr' of the `car' of X."
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491 (cdr (car (cdr (car x)))))
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492
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493 (defun cdaddr (x)
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494 "Return the `cdr' of the `car' of the `cdr' of the `cdr' of X."
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495 (cdr (car (cdr (cdr x)))))
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496
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497 (defun cddaar (x)
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498 "Return the `cdr' of the `cdr' of the `car' of the `car' of X."
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499 (cdr (cdr (car (car x)))))
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500
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501 (defun cddadr (x)
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502 "Return the `cdr' of the `cdr' of the `car' of the `cdr' of X."
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503 (cdr (cdr (car (cdr x)))))
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504
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505 (defun cdddar (x)
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506 "Return the `cdr' of the `cdr' of the `cdr' of the `car' of X."
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507 (cdr (cdr (cdr (car x)))))
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508
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509 (defun cddddr (x)
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510 "Return the `cdr' of the `cdr' of the `cdr' of the `cdr' of X."
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511 (cdr (cdr (cdr (cdr x)))))
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512
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513 ;;; `last' is implemented as a C primitive, as of 1998-11
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514
5281
aa20a889ff14 Remove a couple of redundant functions, backquote.el
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parents: 5219
diff changeset
515 ;;; XEmacs: `list*' is in subr.el.
428
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516
5285
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
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517 ;; XEmacs; handle dotted lists properly, error on circularity and if LIST is
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518 ;; not a list.
428
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519 (defun ldiff (list sublist)
5285
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
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parents: 5281
diff changeset
520 "Return a copy of LIST with the tail SUBLIST removed.
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parents: 5281
diff changeset
521
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
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diff changeset
522 If SUBLIST is the same Lisp object as LIST, return nil. If SUBLIST is
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
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diff changeset
523 not present in the list structure of LIST (that is, it is not the cdr
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
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parents: 5281
diff changeset
524 of some cons making up LIST), this function is equivalent to
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
parents: 5281
diff changeset
525 `copy-list'. LIST may be dotted."
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diff changeset
526 (check-argument-type #'listp list)
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Aidan Kehoe <kehoea@parhasard.net>
parents: 5281
diff changeset
527 (and list (not (eq list sublist))
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Aidan Kehoe <kehoea@parhasard.net>
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528 (let ((before list) (evenp t) result)
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Aidan Kehoe <kehoea@parhasard.net>
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diff changeset
529 (prog1
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parents: 5281
diff changeset
530 (setq result (list (car list)))
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
parents: 5281
diff changeset
531 (while (and (setq list (cdr-safe list)) (not (eql list sublist)))
5294
bbff29a01820 Add compiler macros and compilation sanity-checks for functions with keywords.
Aidan Kehoe <kehoea@parhasard.net>
parents: 5285
diff changeset
532 (setcdr result (if (consp list) (list (car list)) list))
bbff29a01820 Add compiler macros and compilation sanity-checks for functions with keywords.
Aidan Kehoe <kehoea@parhasard.net>
parents: 5285
diff changeset
533 (setq result (cdr result)
5285
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
parents: 5281
diff changeset
534 evenp (not evenp))
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
parents: 5281
diff changeset
535 (if evenp (setq before (cdr before)))
99de5fd48e87 Tighten up Common Lisp compatibility, #'butlast, #'nbutlast, #'tailp, #'ldiff
Aidan Kehoe <kehoea@parhasard.net>
parents: 5281
diff changeset
536 (if (eq before list) (error 'circular-list list)))))))
428
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537
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diff changeset
538 ;;; `copy-list' is implemented as a C primitive, as of 1998-11
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539
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diff changeset
540 (defalias 'cl-member 'memq) ; for compatibility with old CL package
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541 (defalias 'cl-floor 'floor*)
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542 (defalias 'cl-ceiling 'ceiling*)
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diff changeset
543 (defalias 'cl-truncate 'truncate*)
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diff changeset
544 (defalias 'cl-round 'round*)
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diff changeset
545 (defalias 'cl-mod 'mod*)
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546
5219
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
Aidan Kehoe <kehoea@parhasard.net>
parents: 5066
diff changeset
547 (defun acons (key value alist)
428
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diff changeset
548 "Return a new alist created by adding (KEY . VALUE) to ALIST."
5219
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
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parents: 5066
diff changeset
549 (cons (cons key value) alist))
428
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550
5219
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
Aidan Kehoe <kehoea@parhasard.net>
parents: 5066
diff changeset
551 (defun pairlis (keys values &optional alist)
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
Aidan Kehoe <kehoea@parhasard.net>
parents: 5066
diff changeset
552 "Make an alist from KEYS and VALUES.
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
Aidan Kehoe <kehoea@parhasard.net>
parents: 5066
diff changeset
553 Return a new alist composed by associating KEYS to corresponding VALUES;
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
Aidan Kehoe <kehoea@parhasard.net>
parents: 5066
diff changeset
554 the process stops as soon as KEYS or VALUES run out.
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
Aidan Kehoe <kehoea@parhasard.net>
parents: 5066
diff changeset
555 If ALIST is non-nil, the new pairs are prepended to it."
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
Aidan Kehoe <kehoea@parhasard.net>
parents: 5066
diff changeset
556 (nconc (mapcar* 'cons keys values) alist))
428
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557
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558 ;;; Miscellaneous.
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559
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diff changeset
560 ;; XEmacs change
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diff changeset
561 (define-error 'cl-assertion-failed "Assertion failed")
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562
5318
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
563 ;; XEmacs; provide a milquetoast amount of compatibility in our error symbols.
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
564 (define-error 'type-error "Wrong type" 'wrong-type-argument)
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
565 (define-error 'program-error "Error in your program" 'invalid-argument)
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
566
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
567 (map-plist
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
568 #'(lambda (key value)
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
569 (mapc #'(lambda (error)
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
570 (put error 'error-conditions
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
571 (cons key (get error 'error-conditions))))
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
572 value))
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
573 '(program-error (wrong-number-of-arguments invalid-keyword-argument)
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
574 type-error (wrong-type-argument malformed-list circular-list)))
203dcac81dae Provide some milquetoast compatibility in our errors, type-error, program-error
Aidan Kehoe <kehoea@parhasard.net>
parents: 5294
diff changeset
575
2153
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james
parents: 2136
diff changeset
576 ;; XEmacs change: omit the autoload rules; we handle those a different way
428
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577
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diff changeset
578 ;;; Define data for indentation and edebug.
4995
8431b52e43b1 Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4885
diff changeset
579 (mapc
428
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diff changeset
580 #'(lambda (entry)
4995
8431b52e43b1 Move the various map* functions to C; add #'map-into.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4885
diff changeset
581 (mapc
428
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582 #'(lambda (func)
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diff changeset
583 (put func 'lisp-indent-function (nth 1 entry))
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diff changeset
584 (put func 'lisp-indent-hook (nth 1 entry))
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diff changeset
585 (or (get func 'edebug-form-spec)
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586 (put func 'edebug-form-spec (nth 2 entry))))
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587 (car entry)))
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588 '(((defun* defmacro*) defun)
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589 ((function*) nil
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590 (&or symbolp ([&optional 'macro] 'lambda (&rest sexp) &rest form)))
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591 ((eval-when) 1 (sexp &rest form))
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592 ((when unless) 1 (&rest form))
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593 ((declare) nil (&rest sexp))
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594 ((the) 1 (sexp &rest form))
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595 ((case ecase typecase etypecase) 1 (form &rest (sexp &rest form)))
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596 ((block return-from) 1 (sexp &rest form))
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597 ((return) nil (&optional form))
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598 ((do do*) 2 ((&rest &or symbolp (symbolp &optional form form))
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599 (form &rest form)
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600 &rest form))
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601 ((dolist dotimes) 1 ((symbolp form &rest form) &rest form))
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602 ((do-symbols) 1 ((symbolp form &optional form form) &rest form))
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603 ((do-all-symbols) 1 ((symbolp form &optional form) &rest form))
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604 ((psetq setf psetf) nil edebug-setq-form)
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605 ((progv) 2 (&rest form))
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606 ((flet labels macrolet) 1
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diff changeset
607 ((&rest (sexp sexp &rest form)) &rest form))
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608 ((symbol-macrolet lexical-let lexical-let*) 1
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609 ((&rest &or symbolp (symbolp form)) &rest form))
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610 ((multiple-value-bind) 2 ((&rest symbolp) &rest form))
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611 ((multiple-value-setq) 1 ((&rest symbolp) &rest form))
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612 ((incf decf remf pop push pushnew shiftf rotatef) nil (&rest form))
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613 ((letf letf*) 1 ((&rest (&rest form)) &rest form))
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614 ((callf destructuring-bind) 2 (sexp form &rest form))
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615 ((callf2) 3 (sexp form form &rest form))
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616 ((loop) defun (&rest &or symbolp form))
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617 ((ignore-errors) 0 (&rest form))))
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618
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diff changeset
619 ;;; This goes here so that cl-macs can find it if it loads right now.
5219
2d0937dc83cf Tidying of CL files; make docstrings read better, remove commented-out code
Aidan Kehoe <kehoea@parhasard.net>
parents: 5066
diff changeset
620 (provide 'cl-19)
428
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621
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diff changeset
622 ;;; Things to do after byte-compiler is loaded.
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diff changeset
623 ;;; As a side effect, we cause cl-macs to be loaded when compiling, so
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diff changeset
624 ;;; that the compiler-macros defined there will be present.
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625
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diff changeset
626 (defvar cl-hacked-flag nil)
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diff changeset
627 (defun cl-hack-byte-compiler ()
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diff changeset
628 (if (and (not cl-hacked-flag) (fboundp 'byte-compile-file-form))
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diff changeset
629 (progn
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diff changeset
630 (setq cl-hacked-flag t) ; Do it first, to prevent recursion.
442
abe6d1db359e Import from CVS: tag r21-2-36
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diff changeset
631 (when (not (fboundp 'cl-compile-time-init))
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diff changeset
632 (load "cl-macs" nil t))
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diff changeset
633 (cl-compile-time-init)))) ; In cl-macs.el.
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diff changeset
634
3ecd8885ac67 Import from CVS: tag r21-2-22
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diff changeset
635 ;;; Try it now in case the compiler has already been loaded.
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cvs
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diff changeset
636 (cl-hack-byte-compiler)
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diff changeset
637
4683
0cc9d22c3732 Be more reliable about loading cl-macs at byte-compile time, cl.el.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4677
diff changeset
638 ;;; Also make a hook in case compiler is loaded after this file.
0cc9d22c3732 Be more reliable about loading cl-macs at byte-compile time, cl.el.
Aidan Kehoe <kehoea@parhasard.net>
parents: 4677
diff changeset
639 (add-hook 'bytecomp-load-hook 'cl-hack-byte-compiler)
428
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diff changeset
640
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diff changeset
641 ;;; The following ensures that packages which expect the old-style cl.el
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cvs
parents:
diff changeset
642 ;;; will be happy with this one.
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cvs
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diff changeset
643
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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diff changeset
644 (provide 'cl)
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cvs
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diff changeset
645
3ecd8885ac67 Import from CVS: tag r21-2-22
cvs
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diff changeset
646 (run-hooks 'cl-load-hook)
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diff changeset
647
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james
parents: 2136
diff changeset
648 ;;; arch-tag: 5f07fa74-f153-4524-9303-21f5be125851
428
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diff changeset
649 ;;; cl.el ends here