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209
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1 ;;; abbrev.el --- abbrev mode commands for Emacs
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2
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3 ;; Copyright (C) 1985, 1986, 1987, 1992, 1997 Free Software Foundation, Inc.
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4
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5 ;; Maintainer: XEmacs Development Team
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6 ;; Keywords: abbrev, dumped
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7
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8 ;; This file is part of XEmacs.
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9
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10 ;; XEmacs is free software; you can redistribute it and/or modify it
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11 ;; under the terms of the GNU General Public License as published by
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12 ;; the Free Software Foundation; either version 2, or (at your option)
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13 ;; any later version.
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14
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15 ;; XEmacs is distributed in the hope that it will be useful, but
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16 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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17 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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18 ;; General Public License for more details.
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19
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20 ;; You should have received a copy of the GNU General Public License
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21 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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22 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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23 ;; 02111-1307, USA.
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24
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25 ;;; Synched up with: FSF 19.34 (With some additions)
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26
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27 ;;; Commentary:
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28
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29 ;; This file is dumped with XEmacs.
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30
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31 ;; This facility is documented in the Emacs Manual.
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32
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33 ;;; Code:
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34
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35 ;jwz: this is preloaded so don't ;;;###autoload
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36 (defcustom only-global-abbrevs nil "\
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37 *Non-nil means user plans to use global abbrevs only.
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38 Makes the commands to define mode-specific abbrevs define global ones instead."
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39 :type 'boolean
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40 :group 'abbrev)
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41
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42 ;;; XEmacs: the following block of code is not in FSF
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43 (defvar abbrev-table-name-list '()
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44 "List of symbols whose values are abbrev tables.")
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45
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46 (defvar abbrevs-changed nil
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47 "Set non-nil by defining or altering any word abbrevs.
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48 This causes `save-some-buffers' to offer to save the abbrevs.")
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49
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50 (defun make-abbrev-table ()
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51 "Create a new, empty abbrev table object."
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52 (make-vector 59 0)) ; 59 is prime
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53
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54 (defun clear-abbrev-table (table)
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55 "Undefine all abbrevs in abbrev table TABLE, leaving it empty."
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56 (fillarray table 0)
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57 (setq abbrevs-changed t)
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58 nil)
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59
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60
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61 (defun define-abbrev-table (name defs)
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62 "Define TABNAME (a symbol) as an abbrev table name.
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63 Define abbrevs in it according to DEFINITIONS, which is a list of elements
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64 of the form (ABBREVNAME EXPANSION HOOK USECOUNT)."
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65 (let ((table (and (boundp name) (symbol-value name))))
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66 (cond ((vectorp table))
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67 ((not table)
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68 (setq table (make-abbrev-table))
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69 (set name table)
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70 (setq abbrev-table-name-list (cons name abbrev-table-name-list)))
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71 (t
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72 (setq table (signal 'wrong-type-argument (list 'vectorp table)))
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73 (set name table)))
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74 (while defs
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75 (apply (function define-abbrev) table (car defs))
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76 (setq defs (cdr defs)))))
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77
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78 (defun define-abbrev (table name &optional expansion hook count)
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79 "Define an abbrev in TABLE named NAME, to expand to EXPANSION or call HOOK.
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80 NAME and EXPANSION are strings. Hook is a function or `nil'.
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81 To undefine an abbrev, define it with an expansion of `nil'."
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82 (or (not expansion)
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83 (stringp expansion)
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84 (setq expansion (signal 'wrong-type-argument
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85 (list 'stringp expansion))))
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86 (or (not count)
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87 (integerp count)
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88 (setq count (signal 'wrong-type-argument
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89 (list 'fixnump count))))
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90 (or (vectorp table)
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91 (setq table (signal 'wrong-type-argument
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92 (list 'vectorp table))))
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93 (let* ((sym (intern name table))
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94 (oexp (and (boundp sym) (symbol-value sym)))
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95 (ohook (and (fboundp sym) (symbol-function sym))))
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96 (unless (and (equal ohook hook)
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97 (stringp oexp)
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98 (stringp expansion)
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99 (string-equal oexp expansion))
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100 (setq abbrevs-changed t)
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101 ;; If there is a non-word character in the string, set the flag.
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102 (if (string-match "\\W" name)
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103 (set (intern " " table) nil)))
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104 (set sym expansion)
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105 (fset sym hook)
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106 (setplist sym (or count 0))
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107 name))
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108
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109
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110 ;; Fixup stuff from bootstrap def of define-abbrev-table in subr.el
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111 (let ((l abbrev-table-name-list))
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112 (while l
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113 (let ((fixup (car l)))
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114 (if (consp fixup)
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115 (progn
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116 (setq abbrev-table-name-list (delq fixup abbrev-table-name-list))
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117 (define-abbrev-table (car fixup) (cdr fixup))))
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118 (setq l (cdr l))))
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119 ;; These are no longer initialised by C code
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120 (if (not global-abbrev-table)
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121 (progn
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122 (setq global-abbrev-table (make-abbrev-table))
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123 (setq abbrev-table-name-list (cons 'global-abbrev-table
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124 abbrev-table-name-list))))
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125 (if (not fundamental-mode-abbrev-table)
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126 (progn
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127 (setq fundamental-mode-abbrev-table (make-abbrev-table))
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128 (setq abbrev-table-name-list (cons 'fundamental-mode-abbrev-table
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129 abbrev-table-name-list))))
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130 (and (eq major-mode 'fundamental-mode)
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131 (not local-abbrev-table)
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132 (setq local-abbrev-table fundamental-mode-abbrev-table)))
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133
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134
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135 (defun define-global-abbrev (name expansion)
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136 "Define ABBREV as a global abbreviation for EXPANSION."
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137 (interactive "sDefine global abbrev: \nsExpansion for %s: ")
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138 (define-abbrev global-abbrev-table
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139 (downcase name) expansion nil 0))
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140
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141 (defun define-mode-abbrev (name expansion)
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142 "Define ABBREV as a mode-specific abbreviation for EXPANSION."
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143 (interactive "sDefine mode abbrev: \nsExpansion for %s: ")
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144 (define-abbrev (or local-abbrev-table
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145 (error "Major mode has no abbrev table"))
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146 (downcase name) expansion nil 0))
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147
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148 (defun abbrev-symbol (abbrev &optional table)
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149 "Return the symbol representing abbrev named ABBREV.
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150 This symbol's name is ABBREV, but it is not the canonical symbol of that name;
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151 it is interned in an abbrev-table rather than the normal obarray.
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152 The value is nil if that abbrev is not defined.
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153 Optional second arg TABLE is abbrev table to look it up in.
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154 The default is to try buffer's mode-specific abbrev table, then global table."
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155 (let ((frob (function (lambda (table)
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156 (let ((sym (intern-soft abbrev table)))
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157 (if (and (boundp sym)
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158 (stringp (symbol-value sym)))
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159 sym
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160 nil))))))
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161 (if table
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162 (funcall frob table)
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163 (or (and local-abbrev-table
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164 (funcall frob local-abbrev-table))
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165 (funcall frob global-abbrev-table)))))
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166
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167 (defun abbrev-expansion (abbrev &optional table)
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168 "Return the string that ABBREV expands into in the current buffer.
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169 Optionally specify an abbrev table as second arg;
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170 then ABBREV is looked up in that table only."
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171 (let ((sym (abbrev-symbol abbrev table)))
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172 (if sym
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173 (symbol-value sym)
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174 nil)))
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175
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176 (defun unexpand-abbrev ()
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177 "Undo the expansion of the last abbrev that expanded.
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178 This differs from ordinary undo in that other editing done since then
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179 is not undone."
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180 (interactive)
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181 (if (or (< last-abbrev-location (point-min))
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182 (> last-abbrev-location (point-max))
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183 (not (stringp last-abbrev-text)))
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184 nil
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185 (let* ((opoint (point))
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186 (val (symbol-value last-abbrev))
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187 (adjust (length val)))
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188 ;; This isn't correct if (symbol-function last-abbrev-text)
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189 ;; was used to do the expansion
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190 (goto-char last-abbrev-location)
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191 (delete-region last-abbrev-location (+ last-abbrev-location adjust))
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192 (insert last-abbrev-text)
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193 (setq adjust (- adjust (length last-abbrev-text)))
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194 (setq last-abbrev-text nil)
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195 (if (< last-abbrev-location opoint)
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196 (goto-char (- opoint adjust))
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197 (goto-char opoint)))))
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198
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199
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200
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201 (defun insert-abbrev-table-description (name human-readable)
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202 "Insert before point a full description of abbrev table named NAME.
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203 NAME is a symbol whose value is an abbrev table.
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204 If optional 2nd arg HUMAN is non-nil, insert a human-readable description.
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205 Otherwise the description is an expression,
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206 a call to `define-abbrev-table', which would
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207 define the abbrev table NAME exactly as it is currently defined."
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208 (let ((table (symbol-value name))
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209 (stream (current-buffer)))
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210 (message "Abbrev-table %s..." name)
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211 (if human-readable
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212 (progn
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213 (prin1 (list name) stream)
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214 ;; Need two terpri's or cretinous edit-abbrevs blows out
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215 (terpri stream)
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216 (terpri stream)
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217 (mapatoms (function (lambda (sym)
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218 (if (symbol-value sym)
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219 (let* ((n (prin1-to-string (symbol-name sym)))
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220 (pos (length n)))
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221 (princ n stream)
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222 (while (< pos 14)
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223 (write-char ?\ stream)
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224 (setq pos (1+ pos)))
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225 (princ (format " %-5S " (symbol-plist sym))
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226 stream)
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227 (if (not (symbol-function sym))
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228 (prin1 (symbol-value sym) stream)
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229 (progn
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230 (setq n (prin1-to-string (symbol-value sym))
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231 pos (+ pos 6 (length n)))
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232 (princ n stream)
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233 (while (< pos 45)
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234 (write-char ?\ stream)
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235 (setq pos (1+ pos)))
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236 (prin1 (symbol-function sym) stream)))
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237 (terpri stream)))))
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238 table)
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239 (terpri stream))
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240 (progn
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241 (princ "\(define-abbrev-table '" stream)
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242 (prin1 name stream)
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243 (princ " '\(\n" stream)
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244 (mapatoms (function (lambda (sym)
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245 (if (symbol-value sym)
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246 (progn
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247 (princ " " stream)
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248 (prin1 (list (symbol-name sym)
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249 (symbol-value sym)
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250 (symbol-function sym)
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251 (symbol-plist sym))
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252 stream)
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253 (terpri stream)))))
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254 table)
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255 (princ " \)\)\n" stream)))
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256 (terpri stream))
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257 (message ""))
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258 ;;; End code not in FSF
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259
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260 (defun abbrev-mode (arg)
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261 "Toggle abbrev mode.
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262 With argument ARG, turn abbrev mode on iff ARG is positive.
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263 In abbrev mode, inserting an abbreviation causes it to expand
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264 and be replaced by its expansion."
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265 (interactive "P")
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266 (setq abbrev-mode
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267 (if (null arg) (not abbrev-mode)
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268 (> (prefix-numeric-value arg) 0)))
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269 ;; XEmacs change
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270 (redraw-modeline))
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271
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272
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273 (defvar edit-abbrevs-map nil
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274 "Keymap used in edit-abbrevs.")
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275 (if edit-abbrevs-map
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276 nil
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277 (setq edit-abbrevs-map (make-sparse-keymap))
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278 ;; XEmacs change
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279 (set-keymap-name edit-abbrevs-map 'edit-abbrevs-map)
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280 (define-key edit-abbrevs-map "\C-x\C-s" 'edit-abbrevs-redefine)
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281 (define-key edit-abbrevs-map "\C-c\C-c" 'edit-abbrevs-redefine))
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282
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283 (defun kill-all-abbrevs ()
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284 "Undefine all defined abbrevs."
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285 (interactive)
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286 (let ((tables abbrev-table-name-list))
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287 (while tables
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288 (clear-abbrev-table (symbol-value (car tables)))
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289 (setq tables (cdr tables)))))
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290
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291 (defun insert-abbrevs ()
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292 "Insert after point a description of all defined abbrevs.
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293 Mark is set after the inserted text."
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294 (interactive)
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295 (push-mark
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296 (save-excursion
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297 (let ((tables abbrev-table-name-list))
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298 (while tables
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299 (insert-abbrev-table-description (car tables) t)
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300 (setq tables (cdr tables))))
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301 (point))))
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302
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303 (defun list-abbrevs ()
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304 "Display a list of all defined abbrevs."
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305 (interactive)
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306 (display-buffer (prepare-abbrev-list-buffer)))
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307
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308 (defun prepare-abbrev-list-buffer ()
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309 (save-excursion
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310 (set-buffer (get-buffer-create "*Abbrevs*"))
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311 (erase-buffer)
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312 (let ((tables abbrev-table-name-list))
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313 (while tables
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314 (insert-abbrev-table-description (car tables) t)
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315 (setq tables (cdr tables))))
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316 (goto-char (point-min))
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317 (set-buffer-modified-p nil)
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318 (edit-abbrevs-mode))
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319 (get-buffer-create "*Abbrevs*"))
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320
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321 (defun edit-abbrevs-mode ()
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322 "Major mode for editing the list of abbrev definitions.
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323 \\{edit-abbrevs-map}"
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324 (interactive)
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325 (setq major-mode 'edit-abbrevs-mode)
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326 (setq mode-name "Edit-Abbrevs")
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327 (use-local-map edit-abbrevs-map))
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328
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329 (defun edit-abbrevs ()
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330 "Alter abbrev definitions by editing a list of them.
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331 Selects a buffer containing a list of abbrev definitions.
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332 You can edit them and type \\<edit-abbrevs-map>\\[edit-abbrevs-redefine] to redefine abbrevs
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333 according to your editing.
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334 Buffer contains a header line for each abbrev table,
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335 which is the abbrev table name in parentheses.
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336 This is followed by one line per abbrev in that table:
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337 NAME USECOUNT EXPANSION HOOK
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338 where NAME and EXPANSION are strings with quotes,
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339 USECOUNT is an integer, and HOOK is any valid function
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340 or may be omitted (it is usually omitted)."
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341 (interactive)
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342 (switch-to-buffer (prepare-abbrev-list-buffer)))
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343
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344 (defun edit-abbrevs-redefine ()
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345 "Redefine abbrevs according to current buffer contents."
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346 (interactive)
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347 (define-abbrevs t)
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348 (set-buffer-modified-p nil))
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349
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350 (defun define-abbrevs (&optional arg)
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351 "Define abbrevs according to current visible buffer contents.
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352 See documentation of `edit-abbrevs' for info on the format of the
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353 text you must have in the buffer.
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354 With argument, eliminate all abbrev definitions except
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355 the ones defined from the buffer now."
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356 (interactive "P")
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357 (if arg (kill-all-abbrevs))
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358 (save-excursion
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359 (goto-char (point-min))
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360 (while (and (not (eobp)) (re-search-forward "^(" nil t))
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361 (let* ((buf (current-buffer))
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362 (table (read buf))
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363 abbrevs name hook exp count)
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364 (forward-line 1)
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365 (while (progn (forward-line 1)
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366 (not (eolp)))
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367 (setq name (read buf) count (read buf) exp (read buf))
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368 (skip-chars-backward " \t\n\f")
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369 (setq hook (if (not (eolp)) (read buf)))
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370 (skip-chars-backward " \t\n\f")
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371 (setq abbrevs (cons (list name exp hook count) abbrevs)))
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372 (define-abbrev-table table abbrevs)))))
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373
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374 (defun read-abbrev-file (&optional file quietly)
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375 "Read abbrev definitions from file written with `write-abbrev-file'.
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376 Optional argument FILE is the name of the file to read;
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377 it defaults to the value of `abbrev-file-name'.
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378 Optional second argument QUIETLY non-nil means don't print anything."
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379 (interactive "fRead abbrev file: ")
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380 (load (if (and file (> (length file) 0)) file abbrev-file-name)
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381 nil quietly)
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382 (setq save-abbrevs t abbrevs-changed nil))
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383
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384 (defun quietly-read-abbrev-file (&optional file)
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385 "Read abbrev definitions from file written with write-abbrev-file.
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386 Optional argument FILE is the name of the file to read;
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387 it defaults to the value of `abbrev-file-name'.
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388 Does not print anything."
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389 ;(interactive "fRead abbrev file: ")
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390 (read-abbrev-file file t))
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391
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392 (defun write-abbrev-file (file)
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393 "Write all abbrev definitions to a file of Lisp code.
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394 The file written can be loaded in another session to define the same abbrevs.
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395 The argument FILE is the file name to write."
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396 (interactive
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397 (list
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398 (read-file-name "Write abbrev file: "
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399 (file-name-directory (expand-file-name abbrev-file-name))
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400 abbrev-file-name)))
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401 (or (and file (> (length file) 0))
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402 (setq file abbrev-file-name))
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403 (save-excursion
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404 (set-buffer (get-buffer-create " write-abbrev-file"))
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405 (erase-buffer)
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406 (let ((tables abbrev-table-name-list))
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407 (while tables
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408 (insert-abbrev-table-description (car tables) nil)
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409 (setq tables (cdr tables))))
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410 (write-region 1 (point-max) file)
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411 (erase-buffer)))
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412
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413 (defun add-mode-abbrev (arg)
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414 "Define mode-specific abbrev for last word(s) before point.
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415 Argument is how many words before point form the expansion;
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416 or zero means the region is the expansion.
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417 A negative argument means to undefine the specified abbrev.
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418 Reads the abbreviation in the minibuffer.
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419
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420 Don't use this function in a Lisp program; use `define-abbrev' instead."
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421 ;; XEmacs change:
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422 (interactive "P")
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423 (add-abbrev
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424 (if only-global-abbrevs
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425 global-abbrev-table
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426 (or local-abbrev-table
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427 (error "No per-mode abbrev table")))
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428 "Mode" arg))
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429
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430 (defun add-global-abbrev (arg)
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431 "Define global (all modes) abbrev for last word(s) before point.
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432 The prefix argument specifies the number of words before point that form the
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433 expansion; or zero means the region is the expansion.
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434 A negative argument means to undefine the specified abbrev.
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435 This command uses the minibuffer to read the abbreviation.
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436
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437 Don't use this function in a Lisp program; use `define-abbrev' instead."
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438 ;; XEmacs change:
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439 (interactive "P")
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440 (add-abbrev global-abbrev-table "Global" arg))
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441
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442 (defun add-abbrev (table type arg)
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443 ;; XEmacs change:
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444 (if (and (not arg) (region-active-p)) (setq arg 0)
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445 (setq arg (prefix-numeric-value arg)))
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446 (let ((exp (and (>= arg 0)
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447 (buffer-substring
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448 (point)
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449 (if (= arg 0) (mark)
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450 (save-excursion (forward-word (- arg)) (point))))))
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451 name)
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452 (setq name
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453 (read-string (format (if exp "%s abbrev for \"%s\": "
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454 "Undefine %s abbrev: ")
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455 type exp)))
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456 (set-text-properties 0 (length name) nil name)
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457 (if (or (null exp)
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458 (not (abbrev-expansion name table))
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459 (y-or-n-p (format "%s expands to \"%s\"; redefine? "
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460 name (abbrev-expansion name table))))
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461 (define-abbrev table (downcase name) exp))))
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462
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463 (defun inverse-add-mode-abbrev (arg)
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464 "Define last word before point as a mode-specific abbrev.
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465 With prefix argument N, defines the Nth word before point.
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466 This command uses the minibuffer to read the expansion.
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467 Expands the abbreviation after defining it."
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468 (interactive "p")
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469 (inverse-add-abbrev
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470 (if only-global-abbrevs
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471 global-abbrev-table
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472 (or local-abbrev-table
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473 (error "No per-mode abbrev table")))
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474 "Mode" arg))
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475
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476 (defun inverse-add-global-abbrev (arg)
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477 "Define last word before point as a global (mode-independent) abbrev.
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478 With prefix argument N, defines the Nth word before point.
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479 This command uses the minibuffer to read the expansion.
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480 Expands the abbreviation after defining it."
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481 (interactive "p")
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482 (inverse-add-abbrev global-abbrev-table "Global" arg))
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483
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484 (defun inverse-add-abbrev (table type arg)
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485 (let (name nameloc exp)
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486 (save-excursion
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487 (forward-word (- arg))
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488 (setq name (buffer-substring (point) (progn (forward-word 1)
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489 (setq nameloc (point))))))
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490 (set-text-properties 0 (length name) nil name)
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491 (setq exp (read-string (format "%s expansion for \"%s\": "
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492 type name)))
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493 (if (or (not (abbrev-expansion name table))
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494 (y-or-n-p (format "%s expands to \"%s\"; redefine? "
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495 name (abbrev-expansion name table))))
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496 (progn
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497 (define-abbrev table (downcase name) exp)
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498 (save-excursion
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499 (goto-char nameloc)
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500 (expand-abbrev))))))
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501
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502 (defun abbrev-prefix-mark (&optional arg)
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503 "Mark current point as the beginning of an abbrev.
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504 Abbrev to be expanded starts here rather than at beginning of word.
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505 This way, you can expand an abbrev with a prefix: insert the prefix,
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506 use this command, then insert the abbrev."
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507 (interactive "P")
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508 (or arg (expand-abbrev))
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509 (setq abbrev-start-location (point-marker)
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510 abbrev-start-location-buffer (current-buffer))
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511 (let ((e (make-extent (point) (point))))
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512 (set-extent-begin-glyph e (make-glyph [string :data "-"]))))
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513
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514 (defun expand-region-abbrevs (start end &optional noquery)
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515 "For abbrev occurrence in the region, offer to expand it.
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516 The user is asked to type y or n for each occurrence.
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517 A prefix argument means don't query; expand all abbrevs.
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518 If called from a Lisp program, arguments are START END &optional NOQUERY."
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519 (interactive "r\nP")
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520 (save-excursion
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521 (goto-char start)
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522 (let ((lim (- (point-max) end))
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523 pnt string)
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524 (while (and (not (eobp))
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525 (progn (forward-word 1)
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526 (<= (setq pnt (point)) (- (point-max) lim))))
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527 (if (abbrev-expansion
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528 (setq string
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529 (buffer-substring
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530 (save-excursion (forward-word -1) (point))
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531 pnt)))
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532 (if (or noquery (y-or-n-p (format "Expand `%s'? " string)))
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533 (expand-abbrev)))))))
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534
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535 ;;; abbrev.el ends here
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