Mercurial > hg > xemacs-beta
view lisp/cus-start.el @ 5560:58b38d5b32d0
Implement print-circle, allowing recursive and circular structures to be read.
src/ChangeLog addition:
2011-09-04 Aidan Kehoe <kehoea@parhasard.net>
* alloc.c:
* alloc.c (ALLOC_FROB_BLOCK_LISP_OBJECT_1):
* alloc.c (ALLOC_FROB_BLOCK_LISP_OBJECT):
* alloc.c (cons_print_preprocess):
* alloc.c (vector_print_preprocess):
* alloc.c (vector_nsubst_structures_descend):
* alloc.c (Fmake_symbol):
* alloc.c (UNMARK_symbol):
* alloc.c (sweep_symbols):
* alloc.c (reinit_alloc_objects_early):
* alloc.c (reinit_alloc_early):
* bytecode.c:
* bytecode.c (compiled_function_print_preprocess):
* bytecode.c (compiled_function_nsubst_structures_descend):
* bytecode.c (set_compiled_function_arglist):
* bytecode.c (set_compiled_function_interactive):
* bytecode.c (bytecode_objects_create):
* chartab.c:
* chartab.c (print_preprocess_mapper):
* chartab.c (nsubst_structures_mapper):
* chartab.c (char_table_nsubst_structures_descend):
* chartab.c (chartab_objects_create):
* elhash.c:
* elhash.c (nsubst_structures_map_hash_table):
* elhash.c (hash_table_nsubst_structures_descend):
* elhash.c (print_preprocess_mapper):
* elhash.c (hash_table_print_preprocess):
* elhash.c (inchash_eq):
* elhash.c (hash_table_objects_create):
* elhash.c (syms_of_elhash):
* elhash.h:
* emacs.c (main_1):
* fns.c:
* fns.c (check_eq_nokey):
* fns.c (Fnsubst):
* fns.c (syms_of_fns):
* lisp.h:
* lisp.h (struct Lisp_Symbol):
* lisp.h (IN_OBARRAY):
* lisp.h (struct):
* lisp.h (PRINT_PREPROCESS):
* lread.c (read1):
* lrecord.h:
* lrecord.h (struct lrecord_implementation):
* lrecord.h (DEFINE_DUMPABLE_MODULE_LISP_OBJECT):
* print.c:
* print.c (PRINT_CIRCLE_LIMIT):
* print.c (print_continuous_numbering_changed):
* print.c (print_prepare):
* print.c (print_finish):
* print.c (Fprin1_to_string):
* print.c (print_cons):
* print.c (print_preprocess_inchash_eq):
* print.c (print_preprocess):
* print.c (print_sort_get_numbers):
* print.c (print_sort_compare_ordinals):
* print.c (print_gensym_or_circle):
* print.c (nsubst_structures_descend):
* print.c (nsubst_structures):
* print.c (print_internal):
* print.c (print_symbol):
* print.c (vars_of_print):
* rangetab.c:
* rangetab.c (range_table_print_preprocess):
* rangetab.c (range_table_nsubst_structures_descend):
* rangetab.c (rangetab_objects_create):
* rangetab.c (syms_of_rangetab):
* symbols.c:
* symbols.c (symbol_print_preprocess):
* symbols.c (Fintern):
* symbols.c (Funintern):
* symbols.c (reinit_symbol_objects_early):
* symbols.c (init_symbols_once_early):
* symsinit.h:
Implement print-circle, printing circular structures in a readable
fashion, and treating them appropriately on read. This is by means
of two new object methods, print_preprocess (detecting
circularities), and nsubst_structures_descend (replacing
placeholders with the read objects).
Expose the substitution to Lisp via #'nsubst and its new
:descend-structures keyword.
Store information as to whether symbols are interned in obarray or
not in their header, making checking for keywords and uninterned
symbols (and thus printing) cheaper.
Default print_gensym to t, as Common Lisp does, and as a
more-than-decade old comment suggests.
lisp/ChangeLog addition:
2011-09-04 Aidan Kehoe <kehoea@parhasard.net>
* bytecomp.el (byte-compile-output-file-form):
* bytecomp.el (byte-compile-output-docform):
Bind print-circle, print-continuous-numbering in these functions,
now those variables are available.
* lisp.el (forward-sexp):
* lisp.el (backward-sexp):
Recognise leading #N= as being part of an expression.
tests/ChangeLog addition:
2011-09-04 Aidan Kehoe <kehoea@parhasard.net>
* automated/lisp-reader-tests.el:
* automated/lisp-tests.el (literal-with-uninterned):
* automated/symbol-tests.el (foo):
Test print-circle, for printing (mutually-)recursive and circular
structures.
Bind print-continuous-numbering where appropriate.
| author | Aidan Kehoe <kehoea@parhasard.net> |
|---|---|
| date | Sun, 04 Sep 2011 19:51:35 +0100 |
| parents | 308d34e9f07d |
| children | 916b48abd1c6 |
line wrap: on
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;;; cus-start.el --- define customization properties of builtins. ;; Copyright (C) 1997 Free Software Foundation, Inc. ;; Author: Per Abrahamsen <abraham@dina.kvl.dk> ;; Maintainer: XEmacs Development Team ;; Keywords: internal, dumped ;; This file is part of XEmacs. ;; XEmacs is free software: you can redistribute it and/or modify it ;; under the terms of the GNU General Public License as published by the ;; Free Software Foundation, either version 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>. ;;; Synched up with: Not synched with FSF. ;;; Commentary: ;; This file is dumped with XEmacs. ;; The following code is used to define the customization properties ;; for builtin variables, and variables in the packages that are ;; preloaded /very/ early, before custom.el itself (replace.el is such ;; an example). The way it handles custom stuff is dirty, and should ;; be regarded as a last resort. DO NOT add variables here, unless ;; you know what you are doing. ;; Must be run before the user has changed the value of any options! ;;; Code: (require 'custom) (let ((all '(;; boolean (abbrev-all-caps abbrev boolean) (allow-deletion-of-last-visible-frame frames boolean) (allow-incremental-gc alloc boolean) (debug-on-quit debug boolean) (delete-auto-save-files auto-save boolean) (delete-exited-processes processes-basics boolean) (garbage-collection-messages alloc boolean) (indent-tabs-mode editing-basics boolean) (load-ignore-elc-files maint boolean) (load-ignore-out-of-date-elc-files maint boolean) (load-show-full-path-in-messages maint boolean) (load-always-display-messages maint boolean) (load-warn-when-source-newer maint boolean) (load-warn-when-source-only maint boolean) (modifier-keys-are-sticky keyboard boolean) (no-redraw-on-reenter display boolean) (scroll-on-clipped-lines display boolean) (truncate-partial-width-windows display boolean) (visible-bell sound boolean) (x-allow-sendevents x boolean) (zmacs-regions editing-basics boolean) (load-home-init-file installation boolean) ;; integer (auto-save-interval auto-save integer) (bell-volume sound integer) (bell-inhibit-time sound integer) (echo-keystrokes keyboard integer) (gc-cons-threshold alloc integer) (gc-cons-incremental-threshold alloc integer) (gc-incremental-traversal-threshold alloc integer) (next-screen-context-lines display integer) (scroll-conservatively display integer) (scroll-step windows integer) (window-min-height windows integer) (window-min-width windows integer) ;; object (auto-save-file-format auto-save (choice (const :tag "Normal" t) (repeat (symbol :tag "Format")))) (completion-ignored-extensions minibuffer (repeat (string :format "%v"))) (debug-ignored-errors debug (repeat (choice :format "%v" (symbol :tag "Class") regexp))) (debug-on-error debug (choice (const :tag "off" nil) (const :tag "Always" t) (repeat :menu-tag "When" :value (nil) (symbol :tag "Condition")))) (debug-on-signal debug (choice (const :tag "off" nil) (const :tag "Always" t) (repeat :menu-tag "When" :value (nil) (symbol :tag "Condition")))) (exec-path processes-basics (repeat (choice :tag "Directory" (const :tag "Default" nil) (directory :format "%v")))) (file-name-handler-alist data (repeat (cons regexp (function :tag "Handler")))) (shell-file-name execute file) (stack-trace-on-error debug (choice (const :tag "off" nil) (const :tag "Always" t) (repeat :menu-tag "When" :value (nil) (symbol :tag "Condition")))) (stack-trace-on-signal debug (choice (const :tag "off" nil) (const :tag "Always" t) (repeat :menu-tag "When" :value (nil) (symbol :tag "Condition")))) (modifier-keys-sticky-time keyboard (choice (integer :tag "Milliseconds") (const :tag "Unbounded" 'unbounded))) ;; buffer-local (case-fold-search matching boolean) (ctl-arrow display (choice (integer 160) (sexp :tag "160 (default)" :format "%t\n"))) (fill-column fill integer) (left-margin fill integer) (tab-width editing-basics integer) (truncate-lines display boolean) (overwrite-mode editing-basics ;; for the options menu - dverna (choice (const :tag "disabled" nil) (const :tag "textual" 'overwrite-mode-textual) (const :tag "binary" 'overwrite-mode-binary))) ;; not documented as user-options, but should still be ;; customizable: (bar-cursor display (choice (const :tag "Block Cursor" nil) (const :tag "Bar Cursor (1 pixel)" t) (sexp :tag "Bar Cursor (2 pixels)" :format "%t\n" 'other))) (default-frame-plist frames plist) (default-tty-frame-plist frames plist) (default-x-frame-plist frames plist) (disable-auto-save-when-buffer-shrinks auto-save boolean) (find-file-use-truenames find-file boolean) (find-file-compare-truenames find-file boolean) (focus-follows-mouse x boolean) (help-char keyboard (choice character (sexp :tag "Single key specifier"))) (max-lisp-eval-depth limits integer) (max-specpdl-size limits integer) (meta-prefix-char keyboard character) (parse-sexp-ignore-comments editing-basics boolean) (selective-display display (choice (const :tag "off" nil) (integer :tag "space" :format "%v" 1) (const :tag "on" t))) (selective-display-ellipses display boolean) (signal-error-on-buffer-boundary internal boolean) (temp-buffer-show-function windows (radio (function-item :tag "Temp Buffers Always in Same Frame" :format "%t\n" show-temp-buffer-in-current-frame) (const :tag "Temp Buffers Like Other Buffers" nil) (function :tag "Other"))) (undo-threshold undo integer) (undo-high-threshold undo integer) (words-include-escapes editing-basics boolean) ;; These are from replace.el, which is loaded too early ;; to be customizable. (case-replace matching boolean) (query-replace-highlight matching boolean) (list-matching-lines-default-context-lines matching integer))) this symbol group type) (while all (setq this (car all) all (cdr all) symbol (nth 0 this) group (nth 1 this) type (nth 2 this)) (if (not (boundp symbol)) ;; This is loaded so early, there is no message (if (fboundp 'message) ;; If variables are removed from C code, give an error here! (message "Intrinsic `%S' not bound" symbol)) ;; This is called before any user can have changed the value. (put symbol 'standard-value (list (quote-maybe (default-value symbol)))) ;; Add it to the right group. (custom-add-to-group group symbol 'custom-variable) ;; Set the type. (put symbol 'custom-type type)))) ;; This is to prevent it from being reloaded by `cus-load.el'. (provide 'cus-start) ;;; cus-start.el ends here.
