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Dictionary now uses button
* net/lisp/dictionary-link.el: Removed now obsolete file * net/lisp/dictionary.el: Use insert-button and make-button * net/lisp/dictionary.el (dictionary-mode-map): Now defined using defvar I had to add a conversion function as parameter for the button 'action as I need to be able to pass nil data to my function. This is not possible with the regular button 'action function and the 'button-data value. The functionality of searching a link in all dictionaries has been removed for now. It might appear again once I have an idea how to implement it.
This commit is contained in:
Torsten Hilbrich
parent
99a7e918c8
commit
1773b9b687
@ -1,122 +0,0 @@
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;;; dictionary-link.el --- Hypertext links in text buffers
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;; Author: Torsten Hilbrich <torsten.hilbrich@gmx.net>
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;; Keywords: interface, hypermedia
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;; Version: 1.11
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;; This file is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; This file is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; This file contains functions for using links in buffers. A link is
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;; a part of the buffer marked with a special face, beeing
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;; hightlighted while the mouse points to it and beeing activated when
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;; pressing return or clicking the button2.
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;; Which each link a function and some data are associated. Upon
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;; clicking the function is called with the data as only
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;; argument. Both the function and the data are stored in text
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;; properties.
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;;
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;; dictionary-link-create-link - insert a new link for the text in the given range
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;; dictionary-link-initialize-keymap - install the keybinding for selecting links
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;;; Code:
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(defun dictionary-link-create-link (start end face function &optional data help)
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"Create a link in the current buffer starting from `start' going to `end'.
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The `face' is used for displaying, the `data' are stored together with the
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link. Upon clicking the `function' is called with `data' as argument."
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(let ((properties `(face ,face
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mouse-face highlight
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link t
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link-data ,data
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help-echo ,help
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link-function ,function)))
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(remove-text-properties start end properties)
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(add-text-properties start end properties)))
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(defun dictionary-link-insert-link (text face function &optional data help)
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"Insert the `text' at point to be formatted as link.
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The `face' is used for displaying, the `data' are stored together with the
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link. Upon clicking the `function' is called with `data' as argument."
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(let ((start (point)))
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(insert text)
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(dictionary-link-create-link start (point) face function data help)))
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(defun dictionary-link-selected (&optional all)
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"Is called upon clicking or otherwise visiting the link."
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(interactive)
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(let* ((properties (text-properties-at (point)))
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(function (plist-get properties 'link-function))
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(data (plist-get properties 'link-data)))
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(if function
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(funcall function data all))))
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(defun dictionary-link-selected-all ()
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"Called for meta clicking the link"
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(interactive)
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(dictionary-link-selected 'all))
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(defun dictionary-link-mouse-click (event &optional all)
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"Is called upon clicking the link."
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(interactive "@e")
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(mouse-set-point event)
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(dictionary-link-selected))
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(defun dictionary-link-mouse-click-all (event)
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"Is called upon meta clicking the link."
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(interactive "@e")
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(mouse-set-point event)
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(dictionary-link-selected-all))
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(defun dictionary-link-next-link ()
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"Return the position of the next link or nil if there is none"
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(let* ((pos (point))
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(pos (next-single-property-change pos 'link)))
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(if pos
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(if (text-property-any pos (min (1+ pos) (point-max)) 'link t)
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pos
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(next-single-property-change pos 'link))
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nil)))
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(defun dictionary-link-prev-link ()
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"Return the position of the previous link or nil if there is none"
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(let* ((pos (point))
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(pos (previous-single-property-change pos 'link)))
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(if pos
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(if (text-property-any pos (1+ pos) 'link t)
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pos
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(let ((val (previous-single-property-change pos 'link)))
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(if val
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val
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(text-property-any (point-min) (1+ (point-min)) 'link t))))
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nil)))
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(defun dictionary-link-initialize-keymap (keymap)
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"Defines the necessary bindings inside keymap"
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(define-key keymap [mouse-2] 'dictionary-link-mouse-click)
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(define-key keymap [M-mouse-2] 'dictionary-link-mouse-click-all)
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(define-key keymap "\r" 'dictionary-link-selected)
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(define-key keymap "\M-\r" 'dictionary-link-selected-all))
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(provide 'dictionary-link)
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;;; dictionary-link.el ends here
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@ -38,7 +38,7 @@
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(require 'easymenu)
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(require 'custom)
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(require 'dictionary-connection)
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(require 'dictionary-link)
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(require 'button)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;; Stuff for customizing.
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@ -296,8 +296,24 @@ is utf-8"
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;; Global variables
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(defvar dictionary-mode-map
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nil
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"Keymap for dictionary mode")
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(let ((map (make-sparse-keymap)))
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(suppress-keymap map)
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(set-keymap-parent map button-buffer-map)
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(define-key map "q" 'dictionary-close)
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(define-key map "h" 'dictionary-help)
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(define-key map "s" 'dictionary-search)
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(define-key map "d" 'dictionary-lookup-definition)
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(define-key map "D" 'dictionary-select-dictionary)
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(define-key map "M" 'dictionary-select-strategy)
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(define-key map "m" 'dictionary-match-words)
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(define-key map "l" 'dictionary-previous)
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(define-key map "n" 'forward-button)
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(define-key map "p" 'backward-button)
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(define-key map " " 'scroll-up)
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(define-key map (read-kbd-macro "M-SPC") 'scroll-down)
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map)
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"Keymap for the dictionary mode.")
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(defvar dictionary-connection
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nil
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@ -340,7 +356,6 @@ is utf-8"
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* M select the default search strategy
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* Return or Button2 visit that link
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* M-Return or M-Button2 search the word beneath link in all dictionaries
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"
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(unless (eq major-mode 'dictionary-mode)
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@ -394,39 +409,6 @@ is utf-8"
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(dictionary-pre-buffer)
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(dictionary-post-buffer))
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(unless dictionary-mode-map
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(setq dictionary-mode-map (make-sparse-keymap))
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(suppress-keymap dictionary-mode-map)
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(define-key dictionary-mode-map "q" 'dictionary-close)
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(define-key dictionary-mode-map "h" 'dictionary-help)
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(define-key dictionary-mode-map "s" 'dictionary-search)
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(define-key dictionary-mode-map "d" 'dictionary-lookup-definition)
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(define-key dictionary-mode-map "D" 'dictionary-select-dictionary)
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(define-key dictionary-mode-map "M" 'dictionary-select-strategy)
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(define-key dictionary-mode-map "m" 'dictionary-match-words)
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(define-key dictionary-mode-map "l" 'dictionary-previous)
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(if (and (string-match "GNU" (emacs-version))
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(not window-system))
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(define-key dictionary-mode-map [9] 'dictionary-next-link)
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(define-key dictionary-mode-map [tab] 'dictionary-next-link))
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;; shift-tabs normally is supported on window systems only, but
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;; I do not enforce it
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(define-key dictionary-mode-map [(shift tab)] 'dictionary-prev-link)
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(define-key dictionary-mode-map "\e\t" 'dictionary-prev-link)
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(define-key dictionary-mode-map [backtab] 'dictionary-prev-link)
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(define-key dictionary-mode-map "n" 'dictionary-next-link)
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(define-key dictionary-mode-map "p" 'dictionary-prev-link)
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(define-key dictionary-mode-map " " 'scroll-up)
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(define-key dictionary-mode-map [(meta space)] 'scroll-down)
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(dictionary-link-initialize-keymap dictionary-mode-map))
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(defmacro dictionary-reply-code (reply)
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"Return the reply code stored in `reply'."
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(list 'get reply ''reply-code))
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@ -696,43 +678,48 @@ This function knows about the special meaning of quotes (\")"
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(error "Unknown server answer: %s" (dictionary-reply reply)))
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(funcall function reply)))))
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(define-button-type 'dictionary-link
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'face 'dictionary-reference-face
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'action (lambda (button) (funcall (button-get button 'callback)
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(button-get button 'data))))
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(define-button-type 'dictionary-button
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:supertype 'dictionary-link
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'face 'dictionary-button-face)
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(defun dictionary-pre-buffer ()
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"These commands are executed at the begin of a new buffer"
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(setq buffer-read-only nil)
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(erase-buffer)
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(if dictionary-create-buttons
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(progn
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(dictionary-link-insert-link "[Back]" 'dictionary-button-face
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'dictionary-restore-state nil
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"Mouse-2 to go backwards in history")
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(insert-button "[Back]" :type 'dictionary-button
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'callback 'dictionary-restore-state
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'help-echo (purecopy "Mouse-2 to go backwards in history"))
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(insert " ")
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(dictionary-link-insert-link "[Search Definition]"
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'dictionary-button-face
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'dictionary-search nil
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"Mouse-2 to look up a new word")
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(insert-button "[Search Definition]" :type 'dictionary-button
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'callback 'dictionary-search
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'help-echo (purecopy "Mouse-2 to look up a new word"))
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(insert " ")
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(dictionary-link-insert-link "[Matching words]"
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'dictionary-button-face
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'dictionary-match-words nil
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"Mouse-2 to find matches for a pattern")
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(insert-button "[Matching words]" :type 'dictionary-button
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'callback 'dictionary-match-words
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'help-echo (purecopy "Mouse-2 to find matches for a pattern"))
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(insert " ")
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(dictionary-link-insert-link "[Quit]" 'dictionary-button-face
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'dictionary-close nil
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"Mouse-2 to close this window")
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(insert-button "[Quit]" :type 'dictionary-button
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'callback 'dictionary-close
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'help-echo (purecopy "Mouse-2 to close this window"))
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(insert "\n ")
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(dictionary-link-insert-link "[Select Dictionary]"
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'dictionary-button-face
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'dictionary-select-dictionary nil
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"Mouse-2 to select dictionary for future searches")
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(insert-button "[Select Dictionary]" :type 'dictionary-button
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'callback 'dictionary-select-dictionary
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'help-echo (purecopy "Mouse-2 to select dictionary for future searches"))
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(insert " ")
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(dictionary-link-insert-link "[Select Match Strategy]"
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'dictionary-button-face
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'dictionary-select-strategy nil
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"Mouse-2 to select matching algorithm")
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(insert-button "[Select Match Strategy]" :type 'dictionary-button
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'callback 'dictionary-select-strategy
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'help-echo (purecopy "Mouse-2 to select matching algorithm"))
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(insert "\n\n")))
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(setq dictionary-marker (point-marker)))
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@ -810,10 +797,11 @@ The word is taken from the buffer, the `dictionary' is given as argument."
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(setq word (replace-match "" t t word)))
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(unless (equal word displayed-word)
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(dictionary-link-create-link start end 'dictionary-reference-face
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call (cons word dictionary)
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(concat "Press Mouse-2 to lookup \""
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word "\" in \"" dictionary "\"")))))
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(make-button start end :type 'dictionary-link
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'callback call
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'data (cons word dictionary)
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'help-echo (concat "Press Mouse-2 to lookup \""
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word "\" in \"" dictionary "\"")))))
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(defun dictionary-select-dictionary (&rest ignored)
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"Save the current state and start a dictionary selection"
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@ -871,11 +859,10 @@ If PATTERN is omitted, it defaults to \"[ \\f\\t\\n\\r\\v]+\"."
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(if dictionary
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(if (equal dictionary "--exit--")
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(insert "(end of default search list)\n")
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(dictionary-link-insert-link (concat dictionary ": " translated)
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'dictionary-reference-face
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'dictionary-set-dictionary
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(cons dictionary description)
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"Mouse-2 to select this dictionary")
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(insert-button (concat dictionary ": " translated) :type 'dictionary-link
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'callback 'dictionary-set-dictionary
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'data (cons dictionary description)
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'help-echo (purecopy "Mouse-2 to select this dictionary"))
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(insert "\n")))))
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(defun dictionary-set-dictionary (param &optional more)
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@ -907,10 +894,10 @@ If PATTERN is omitted, it defaults to \"[ \\f\\t\\n\\r\\v]+\"."
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(error "Unknown server answer: %s" (dictionary-reply reply)))
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(dictionary-pre-buffer)
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(insert "Information on dictionary: ")
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(dictionary-link-insert-link description 'dictionary-reference-face
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'dictionary-set-dictionary
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(cons dictionary description)
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"Mouse-2 to select this dictionary")
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(insert-button description :type 'dictionary-link
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'callback 'dictionary-set-dictionary
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'data (cons dictionary description)
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'help-echo (purecopy "Mouse-2 to select this dictionary"))
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(insert "\n\n")
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(setq reply (dictionary-read-answer))
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(insert reply)
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@ -958,9 +945,10 @@ If PATTERN is omitted, it defaults to \"[ \\f\\t\\n\\r\\v]+\"."
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(description (cadr list)))
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(if strategy
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(progn
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(dictionary-link-insert-link description 'dictionary-reference-face
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'dictionary-set-strategy strategy
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"Mouse-2 to select this matching algorithm")
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(insert-button description :type 'dictionary-link
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'callback 'dictionary-set-strategy
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'data strategy
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'help-echo (purecopy "Mouse-2 to select this matching algorithm"))
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(insert "\n")))))
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(defun dictionary-set-strategy (strategy &rest ignored)
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@ -1060,11 +1048,10 @@ If PATTERN is omitted, it defaults to \"[ \\f\\t\\n\\r\\v]+\"."
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(mapc (lambda (word)
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(setq word (dictionary-decode-charset word dictionary))
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(insert " ")
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(dictionary-link-insert-link word
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'dictionary-reference-face
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'dictionary-new-search
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(cons word dictionary)
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"Mouse-2 to lookup word")
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(insert-button word :type 'dictionary-button
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'callback 'dictionary-new-search
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'data (cons word dictionary)
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'help-echo (purecopy "Mouse-2 to lookup word"))
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(insert "\n")) (reverse word-list))
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(insert "\n")))
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list))
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@ -1119,22 +1106,6 @@ It presents the word at point as default input and allows editing it."
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(error "Current buffer is no dictionary buffer"))
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(dictionary-restore-state))
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(defun dictionary-next-link ()
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"Place the cursor to the next link."
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(interactive)
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(let ((pos (dictionary-link-next-link)))
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(if pos
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(goto-char pos)
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(error "There is no next link"))))
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(defun dictionary-prev-link ()
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"Place the cursor to the previous link."
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(interactive)
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(let ((pos (dictionary-link-prev-link)))
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(if pos
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(goto-char pos)
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(error "There is no previous link"))))
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(defun dictionary-help ()
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"Display a little help"
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(interactive)
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