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1 ;;; -*- Mode: Emacs-Lisp -*-
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2
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3 ;;; ilisp-cpat.el --
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4
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5 ;;; This file is part of ILISP.
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6 ;;; Version: 5.7
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7 ;;;
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8 ;;; Copyright (C) 1990, 1991, 1992, 1993 Chris McConnell
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9 ;;; 1993, 1994 Ivan Vasquez
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10 ;;; 1994, 1995 Marco Antoniotti and Rick Busdiecker
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11 ;;;
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12 ;;; Other authors' names for which this Copyright notice also holds
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13 ;;; may appear later in this file.
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14 ;;;
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15 ;;; Send mail to 'ilisp-request@lehman.com' to be included in the
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16 ;;; ILISP mailing list. 'ilisp@lehman.com' is the general ILISP
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17 ;;; mailing list were bugs and improvements are discussed.
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18 ;;;
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19 ;;; ILISP is freely redistributable under the terms found in the file
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20 ;;; COPYING.
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21
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22
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23
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24 ;;;
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25 ;;;
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26 ;;; Compatability between GNU emacs 18, 19, and Lucid emacs 19.
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27 ;;;
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28 ;;;
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29 (defconst ilisp-emacs-version-id
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30 (cond ((string-match "Lucid" emacs-version)
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31 (if (string-match "^19.[0-7][^0-9]" emacs-version)
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32 'lucid-19
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33 'lucid-19-new))
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34 ((string-match "^19" emacs-version)
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35 'gnu-19)
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36 (t 'gnu-18))
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37 "What version of emacs we are running.")
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38
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39
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40 ;; Hook stuff--this should really be a part of emacs-lisp anyway
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41
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42 (defun ilisp-member (elt list)
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43 (let ((result nil))
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44 (while list
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45 (cond ((equal elt (car list))
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46 (setq result list
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47 list nil))
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48 (t
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49 (setq list (cdr list)))))
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50 result))
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51
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52
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53 (defun ilisp-add-hook (hook function)
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54 "Arguments are HOOK and FUNCTION. Add FUNCTION to HOOK's list.
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55 FUNCTION is not added if it's already on the list."
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56 (set hook
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57 (if (boundp hook)
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58 (let ((value (symbol-value hook)))
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59 (if (and value (or (not (consp value)) (eq (car value) 'lambda)))
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60 (setq value (cons value nil)))
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61 (if (not (ilisp-member function value))
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62 (setq value (append value (list function))))
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63 value)
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64 (list function))))
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65
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66 (if (not (fboundp 'add-hook))
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67 (fset 'add-hook 'ilisp-add-hook))
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68
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69
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70 ;;; 'ilisp-where-is' has been moved (and corrected) to ilisp-key.el.
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71
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72 ;;;
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73 ;;; COMINT
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74 ;;;
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75 ;;; GNU, Lucid and 18 use different versions of comint with
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76 ;;; incompatible interface variables and functions. Hooray.
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77 ;;;
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78
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79 ;; Some very old COMINT versions are missing these.
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80 (if (not (boundp 'comint-input-chunk-size))
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81 (setq comint-input-chunk-size 512))
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82 (if (not (boundp 'comint-ptyp))
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83 (setq comint-ptyp t))
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84
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85
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86 (defun ilisp-get-input-ring ()
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87 "Use instead of get-input-ring coming-input-ring or input-ring."
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88 (cond ((eq ilisp-emacs-version-id 'lucid-19)
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89 (get-input-ring))
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90 ((or (eq ilisp-emacs-version-id 'gnu-19)
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91 (eq ilisp-emacs-version-id 'lucid-19-new))
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92 comint-input-ring)
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93 (t input-ring)))
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94
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95 (defun ilisp-ring-insert (ring input)
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96 (if (eq ilisp-emacs-version-id 'lucid-19)
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97 (ring-insert-new ring input)
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98 (ring-insert ring input)))
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99
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100 (defun ilisp-temp-buffer-show-function ()
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101 (if (eq ilisp-emacs-version-id 'gnu-18)
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102 temp-buffer-show-hook
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103 temp-buffer-show-function))
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104
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105 (defun ilisp-input-ring-index ()
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106 (if (or (eq ilisp-emacs-version-id 'gnu-19)
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107 (eq ilisp-emacs-version-id 'lucid-19-new))
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108 comint-input-ring-index
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109 input-ring-index))
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110
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111 (defun set-ilisp-input-ring-index (n)
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112 (if (or (eq ilisp-emacs-version-id 'gnu-19)
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113 (eq ilisp-emacs-version-id 'lucid-19-new))
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114 (setq comint-input-ring-index n)
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115 (setq input-ring-index n)))
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116
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117 (defun ilisp-input-ring-size ()
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118 (if (or (eq ilisp-emacs-version-id 'gnu-19)
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119 (eq ilisp-emacs-version-id 'lucid-19-new))
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120 comint-input-ring-size
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121 input-ring-size))
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122
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123 (defun set-ilisp-input-ring-size (n)
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124 (if (or (eq ilisp-emacs-version-id 'gnu-19)
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125 (eq ilisp-emacs-version-id 'lucid-19-new))
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126 (setq comint-input-ring-size n)
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127 (setq input-ring-size n)))
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