annotate lisp/widget.el @ 4745:0c54de4c4b9d

Resolve the unregistered-CCL-programs-get-garbage-collected problem correctly src/ChangeLog addition: 2009-11-15 Aidan Kehoe <kehoea@parhasard.net> * mule-ccl.c (CCL_CALL_FOR_MAP_INSTRUCTION): Assert that we always have a symbol in this macro. (setup_ccl_program): Ensure we're not allocating unreachable memory in this function; all symbols must have been resolved in a given CCL program before this function is called. (find_ccl_program): New function, return a CCL program with all its symbols resolved if it is valid (possibly allocating memory), Qnil otherwise. (get_ccl_program): New function, exported to other files; call find_ccl_program, and error if it gives nil. (Fccl_program_p): Call find_ccl_program from this function instead of implementing the bulk of it here. (Fccl_execute): Call get_ccl_program instead of implementing the bulk of it here. (Fccl_execute_on_string): Ditto. * mule-ccl.h (Vfont_ccl_encoder_alist): Remove this declaration, it hasn't been used in years. (get_ccl_program): Declare this function. * mule-coding.c (ccl_putprop): Use get_ccl_program on any specified encode or decode CCL program property. (fixed_width_putprop): Ditto. * mule-charset.c (Fmake_charset): Use get_ccl_program on any specified ccl-program. (Fset_charset_ccl_program): Ditto.
author Aidan Kehoe <kehoea@parhasard.net>
date Sun, 15 Nov 2009 16:53:14 +0000
parents 3ecd8885ac67
children 308d34e9f07d
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1 ;;; widget.el --- a library of user interface components.
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2
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3 ;; Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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4
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5 ;; Author: Per Abrahamsen <abraham@dina.kvl.dk>
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6 ;; Maintainer: Hrvoje Niksic <hniksic@xemacs.org>
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7 ;; Keywords: help, extensions, faces, hypermedia, dumped
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8 ;; Version: 1.9960-x
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9 ;; X-URL: http://www.dina.kvl.dk/~abraham/custom/
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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
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14 ;; it 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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17
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18 ;; XEmacs is distributed in the hope that it will be useful,
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19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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21 ;; GNU 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
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25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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26 ;; Boston, MA 02111-1307, USA.
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27
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28 ;;; Commentary:
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29
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30 ;; This file is dumped with XEmacs.
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31
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32 ;; If you want to use this code, please visit the URL above.
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33
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34 ;; This file only contain the code needed to define new widget types.
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35 ;; Everything else is autoloaded from `wid-edit.el'.
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36
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37 ;;; Code:
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38
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39 ;; Neither XEmacs, nor latest GNU Emacs need this -- provided for
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40 ;; compatibility.
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41 ;; (defalias 'define-widget-keywords 'ignore)
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42
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43 (defmacro define-widget-keywords (&rest keys)
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44 "This doesn't do anything in Emacs 20 or XEmacs."
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45 `(eval-and-compile
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46 (let ((keywords (quote ,keys)))
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47 (while keywords
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48 (or (boundp (car keywords))
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49 (set (car keywords) (car keywords)))
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50 (setq keywords (cdr keywords))))))
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51
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52 (defun define-widget (name class doc &rest args)
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53 "Define a new widget type named NAME from CLASS.
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54
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55 NAME and CLASS should both be symbols, CLASS should be one of the
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56 existing widget types, or nil to create the widget from scratch.
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57
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58 After the new widget has been defined, the following two calls will
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59 create identical widgets:
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60
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61 * (widget-create NAME)
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62
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63 * (apply 'widget-create CLASS ARGS)
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64
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65 The third argument DOC is a documentation string for the widget."
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66 (check-argument-type 'symbolp name)
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67 (check-argument-type 'symbolp class)
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68 (put name 'widget-type (cons class args))
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69 (put name 'widget-documentation doc)
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70 name)
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71
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72 ;;; The End.
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73
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74 (provide 'widget)
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75
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76 ;;; widget.el ends here