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1 ;;; -*- Mode: Emacs-Lisp -*-
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2
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3 ;;; ilisp-snd.el --
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4
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5 ;;; This file is part of ILISP.
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4
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6 ;;; Version: 5.8
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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, 1996 Marco Antoniotti and Rick Busdiecker
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11 ;;; 1996 Marco Antoniotti and Rick Campbell
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12 ;;;
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13 ;;; Other authors' names for which this Copyright notice also holds
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14 ;;; may appear later in this file.
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15 ;;;
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16 ;;; Send mail to 'ilisp-request@naggum.no' to be included in the
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17 ;;; ILISP mailing list. 'ilisp@naggum.no' is the general ILISP
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18 ;;; mailing list were bugs and improvements are discussed.
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19 ;;;
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20 ;;; ILISP is freely redistributable under the terms found in the file
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21 ;;; COPYING.
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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 ;;; ILISP send and support.
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27 ;;;
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28
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29
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30 ;;;%% Package / Symbol support
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31 ;;;
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32 (defun lisp-buffer-package ()
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33 "Return the package for this buffer. The package name is a string.
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34 If there is none, return NIL. This caches the package unless
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35 ilisp-dont-cache-package is non-nil, so calling this more than once
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36 is cheap."
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37 (cond ((and (not (eq buffer-package 'not-yet-computed))
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38 (null lisp-dont-cache-package))
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39 buffer-package)
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40 (ilisp-completion-package ilisp-completion-package)
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41 (lisp-dont-cache-package
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42 ;; Refind the package each time.
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43 (let ((package (lisp-buffer-package-internal nil)))
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44 (message "")
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45 (setq buffer-package 'not-yet-computed)
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46 (if package
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47 (setq mode-name
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48 (concat
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49 (or buffer-mode-name
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50 (setq buffer-mode-name mode-name))
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51 ":" package)))
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52 package))
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53 ((or lisp-buffer-package
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54 (memq major-mode ilisp-modes)
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55 (not (memq major-mode lisp-source-modes)))
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56 nil)
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57 (t
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58 (make-local-variable 'buffer-package)
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59 (make-local-variable 'buffer-mode-name)
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60 (let ((package (lisp-buffer-package-internal t)))
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61 (message "")
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62 (setq buffer-package package)
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63 ;; Display package in mode line
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64 (if package
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65 (setq mode-name
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66 (concat (or buffer-mode-name
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67 (setq buffer-mode-name mode-name))
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68 ":" buffer-package)))
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69 buffer-package))))
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70
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71 (defun lisp-buffer-package-internal (search-from-start)
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72 "Returns the package of the buffer. If SEARCH-FROM-START is T then
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73 will search from the beginning of the buffer, otherwise will search
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74 backwards from current point."
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75 (setq mode-line-process 'ilisp-status)
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76 (let* ((lisp-buffer-package t)
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77 (case-fold-search t)
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78 (regexp (ilisp-value 'ilisp-package-regexp t))
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79 (spec
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80 (if regexp
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81 (save-excursion
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82 (if (or (and search-from-start
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83 (goto-char (point-min))
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84 (re-search-forward regexp nil t))
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85 (re-search-backward regexp nil t))
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86 (buffer-substring (match-beginning 0)
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87 (progn
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88 (goto-char (match-beginning 0))
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89 (forward-sexp)
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90 (point)))))))
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91 (str (format (ilisp-value 'ilisp-package-command) spec))
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92 (package
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93 (if spec
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94 (ilisp-send
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95 str
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96 "Finding buffer package"
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97 'pkg))))
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98 (if (ilisp-value 'comint-errorp t)
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99 (progn
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100 (lisp-display-output package)
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101 (error "No package"))
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102 (if (and package
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103 ;; There was a bug here, used to have the second *
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104 ;; outside of the parens.
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105 (string-match "[ \n\t:\"]*\\([^ \n\t\"]*\\)" package))
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106 (setq package
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107 (substring package
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108 (match-beginning 1) (match-end 1)))))
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109 package))
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110
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111 ;;;
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112 (defun package-lisp ()
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113 "Show current inferior LISP package."
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114 (interactive)
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115 (message "Inferior LISP package is %s"
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116 (ilisp-send (ilisp-value 'ilisp-package-name-command)
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117 "Finding inferior LISP package" 'pkg)))
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118
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119 ;;;
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120 (defun set-package-lisp (package)
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121 "Set inferior LISP to package of buffer or a named package with prefix."
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122 (interactive
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123 (let ((default (lisp-buffer-package)))
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124 (if (or current-prefix-arg (null default))
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125 (let ((name
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126 (read-string
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127 (format "Package [%s]: " (lisp-buffer-package)) "")))
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128 (list (if (equal name "") default name)))
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129 (list default))))
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130 (if package
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131 (ilisp-send (format (ilisp-value 'ilisp-in-package-command) package)
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132 (format "Set %s's package to %s"
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133 (buffer-name (ilisp-buffer))
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134 package)
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135 'pkg 'dispatch)
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136 (error "No package")))
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137
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138 ;;;
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139 (defun set-buffer-package-lisp (package)
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140 "Reset the current package of the current buffer. With prefix
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141 specify manually."
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142 (interactive (if current-prefix-arg
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143 (list (read-from-minibuffer "Package: " ))
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144 (list nil)))
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145 (if package
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146 (setq buffer-package package
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147 mode-name (concat (or buffer-mode-name mode-name) ":" package))
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148 (setq buffer-package 'not-yet-computed)
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149 (lisp-buffer-package)))
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150
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151
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152
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153 ;;;%Interface functions
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154 ;;;%%Symbols
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155 (defun lisp-string-to-symbol (string)
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156 "Convert STRING to a symbol, (package delimiter symbol) where the
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157 package is either package:symbol or from the current buffer."
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158 (let* ((start (string-match ":+" string))
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159 (end (if start (match-end 0))))
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160 (if start
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161 (lisp-symbol
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162 (if (= start 0)
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163 ""
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164 (substring string 0 start))
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165 (substring string start end)
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166 (substring string end))
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167 (let ((package (lisp-buffer-package)))
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168 (lisp-symbol package (if package "::") string)))))
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169
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170 ;;;
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171 (defun lisp-symbol-to-string (symbol)
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172 "Convert SYMBOL to a string."
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173 (apply 'concat symbol))
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174
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175 ;;;
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176 (defun lisp-buffer-symbol (symbol)
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177 "Return SYMBOL as a string qualified for the current buffer."
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178 (let ((symbol-name (lisp-symbol-name symbol))
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179 (pkg (lisp-symbol-package symbol))
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180 (delimiter (lisp-symbol-delimiter symbol)))
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181 (cond ((string= pkg (lisp-buffer-package)) symbol-name)
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182 ((string= pkg "") (concat ":" symbol-name))
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183 (pkg (concat pkg delimiter symbol-name))
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184 (t symbol-name))))
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185
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186 ;;;
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187 (defun lisp-previous-symbol (&optional stay)
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188 "Return the immediately preceding symbol as ((package delimiter symbol)
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189 function-p start end). If STAY is T, the end of the symbol will be point."
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190 (save-excursion
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191 (if (or (and (memq major-mode ilisp-modes)
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192 (= (point) (process-mark (get-buffer-process
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193 (current-buffer)))))
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194 (progn
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195 (skip-chars-backward " \t\n")
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196 (or (bobp) (memq (char-after (1- (point))) '(?\) ?\")))))
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197 nil
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198 (let* ((delimiters (ilisp-value 'ilisp-symbol-delimiters))
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199 (end (progn
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200 (if (not stay) (skip-chars-forward delimiters))
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201 (point)))
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202 (start (progn
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203 (skip-chars-backward delimiters)
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204 (point)))
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205 (prefix (if (not (bobp)) (1- start)))
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206 (function-p
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207 (and prefix
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208 (or (eq (char-after prefix) ?\()
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209 (and (eq (char-after prefix) ?')
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210 (not (bobp))
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211 (eq (char-after (1- prefix)) ?#)))
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212 (not (looking-at "[^: \t\n]*:*\\*[^ \t\n]")))))
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213 (cons (lisp-string-to-symbol (buffer-substring start end))
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214 (list function-p start end))))))
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215
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216
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217 ;;;
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218 (defun lisp-function-name ()
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219 "Return the previous function symbol. This is either after a #' or
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220 at the start of the current sexp. If there is no current sexp, return
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221 nil."
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222 (save-excursion
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223 (let ((symbol (lisp-previous-symbol)))
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224 (if (car (cdr symbol))
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225 (car symbol)
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226 (condition-case ()
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227 (if (and (memq major-mode ilisp-modes)
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228 (= (point)
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229 (process-mark
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230 (get-buffer-process (current-buffer)))))
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231 nil
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232 (backward-up-list 1)
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233 (down-list 1)
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234 (lisp-string-to-symbol
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235 (buffer-substring (point)
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236 (progn (forward-sexp 1) (point)))))
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237 (error nil))))))
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238
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239
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240 ;;;
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241 (defun lisp-defun-name ()
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242 "Return the name of the current defun."
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243 (save-excursion
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244 (lisp-defun-begin)
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245 (lisp-string-to-symbol (lisp-def-name t))))
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246
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247
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248 ;;;%% ILISP initializations
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249 ;;;
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250 (defun ilisp-initialized ()
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251 "Return T if the current inferior LISP has been initialized."
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252 (memq (buffer-name (ilisp-buffer)) ilisp-initialized))
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253
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254 ;;;
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255 (defun ilisp-load-init (dialect file)
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256 "Add FILE to the files to be loaded into the inferior LISP when
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257 dialect is initialized. If FILE is NIL, the entry will be removed."
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258 (let ((old (assoc dialect ilisp-load-inits)))
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259 (if file
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260 (if old
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261 (rplacd old file)
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262 (setq ilisp-load-inits (nconc ilisp-load-inits
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263 (list (cons dialect file)))))
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264 (if old (setq ilisp-load-inits (delq old ilisp-load-inits))))))
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265
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266 ;;;
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267 (defun ilisp-binary (init var)
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268 "Initialize VAR to the result of INIT if VAR is NIL."
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269 (if (not (ilisp-value var t))
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270 (let ((binary (ilisp-value init t)))
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271 (if binary
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272 (comint-send
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273 (ilisp-process) binary
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274 t nil 'binary nil
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275 (` (lambda (error wait message output last)
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276 (if (or error
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277 (not (string-match "\"[^\"]*\"" output)))
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278 (progn
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279 (lisp-display-output output)
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280 (abort-commands-lisp "No binary"))
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281 (setq (, var)
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282 (substring output
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283 (1+ (match-beginning 0))
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284 (1- (match-end 0))))))))))))
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285
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286 ;;;
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287 (defun ilisp-done-init ()
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288 "Make sure that initialization is done and if not dispatch another check."
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289 (if ilisp-load-files
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290 (comint-send-code (get-buffer-process (current-buffer))
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291 'ilisp-done-init)
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292 (if ilisp-initializing
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293 (progn
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294 (message "Finished initializing %s" (car ilisp-dialect))
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295 (setq ilisp-initializing nil
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296 ilisp-initialized
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297 (cons (buffer-name (current-buffer)) ilisp-initialized))))))
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298
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299 ;;;
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300 (defun ilisp-init-internal (&optional sync)
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301 "Send all of the stuff necessary to initialize."
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302 (unwind-protect
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303 (progn
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304 (if sync
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305 (comint-sync
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306 (ilisp-process)
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307 "\"Start sync\"" "[ \t\n]*\"Start sync\""
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308 "\"End sync\"" "\"End sync\""))
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309 (ilisp-binary 'ilisp-binary-command 'ilisp-binary-extension)
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310 (ilisp-binary 'ilisp-init-binary-command
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311 'ilisp-init-binary-extension)
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312 ;; This gets executed in the process buffer
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313 (comint-send-code
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314 (ilisp-process)
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315 (function (lambda ()
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316 (let ((files ilisp-load-inits)
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317 (done nil))
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318 (unwind-protect
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319 (progn
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320 (if (not ilisp-init-binary-extension)
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321 (setq ilisp-init-binary-extension
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322 ilisp-binary-extension))
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323 (while files
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324 (ilisp-load-or-send
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325 (expand-file-name
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326 (cdr (car files)) ilisp-directory))
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327 (setq files (cdr files)))
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328 (comint-send-code (ilisp-process)
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329 'ilisp-done-init)
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330 (setq done t))
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331 (if (not done)
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332 (progn
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333 (setq ilisp-initializing nil)
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334 (abort-commands-lisp))))))))
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335
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336 (set-ilisp-value 'ilisp-initializing t)) ; progn
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337
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338 (if (not (ilisp-value 'ilisp-initializing t))
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339 (abort-commands-lisp))))
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340
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341 ;;;
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342 (defun ilisp-init (&optional waitp forcep sync)
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343 "Initialize the current inferior LISP if necessary by loading the
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344 files in ilisp-load-inits. Optional WAITP waits for initialization to
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345 finish. When called interactively, force reinitialization. With a
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346 prefix, get the binary extensions again."
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347 (interactive
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348 (list (if current-prefix-arg
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349 (progn
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350 (set-ilisp-value 'ilisp-init-binary-extension nil)
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351 (set-ilisp-value 'ilisp-binary-extension nil)
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352 nil))
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353 t))
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354 (if (or forcep (not (ilisp-initialized)))
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355 (progn
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356 (message "Started initializing ILISP")
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357 (if (not ilisp-directory)
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358 (setq ilisp-directory (or (ilisp-directory "ilisp.elc" load-path)
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359 (ilisp-directory "ilisp.el" load-path))))
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360 (if (not (ilisp-value 'ilisp-initializing t))
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361 (ilisp-init-internal sync))
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362 (if waitp
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363 (while (ilisp-value 'ilisp-initializing t)
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364 (accept-process-output)
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365 (sit-for 0))))))
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366
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367 ;;;
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368 (defun ilisp-init-and-sync ()
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369 "Synchronize with the inferior LISP and then initialize."
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370 (ilisp-init nil nil t))
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371
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372
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373
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374 ;;;
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375 (defun call-defun-lisp (arg)
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376 "Put a call of the current defun in the inferior LISP and go there.
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377 If it is a \(def* name form, look up reasonable forms of name in the
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378 input history unless called with prefix ARG. If not found, use \(name
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379 or *name* as the call. If is not a def* form, put the whole form in
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380 the buffer."
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381 (interactive "P")
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382 (if (save-excursion (lisp-defun-begin) (looking-at "(def"))
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383 (let* ((symbol (lisp-defun-name))
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384 (name (lisp-symbol-name symbol))
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385 (package (if (lisp-symbol-package symbol)
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386 (concat "\\("
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387 (lisp-symbol-package symbol) ":+\\)?")))
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388 (variablep (string-match "^\\*" name))
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389 (setfp (string-match "(setf \\([^\)]+\\)" name)))
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390 (switch-to-lisp t t)
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391 (cond (setfp
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392 (setq name
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393 (substring name (match-beginning 1) (match-end 1)))
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394 (lisp-match-ring (if (not arg)
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395 (concat "(setf[ \t\n]*("
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396 package name "[ \t\n]"))
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397 (concat "(setf (" name)))
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398 (variablep (lisp-match-ring (if (not arg)
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399 (concat package name))
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400 name))
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401 (t
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402 (let ((fun (concat "(" name)))
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403 (setq name (regexp-quote name))
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404 (or (lisp-match-ring
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405 (if (not arg) (concat "(" package name "[ \t\n\)]"))
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406 fun
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407 (not arg))
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408 (lisp-match-ring (concat "(" package
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409 "[^ \t\n]*-*" name)
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410 fun))))))
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411 (let ((form
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412 (save-excursion
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413 (buffer-substring (lisp-defun-begin)
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414 (lisp-end-defun-text t)))))
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415 (switch-to-lisp t t)
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416 (comint-kill-input)
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417 (insert form))))
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418
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419
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420
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421 ;;;
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422 (defun ilisp-send (string &optional message status and-go handler)
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423 "Send STRING to the ILISP buffer, print MESSAGE set STATUS and
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424 return the result if AND-GO is NIL, otherwise switch to ilisp if
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425 and-go is T and show message and results. If AND-GO is 'dispatch,
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426 then the command will be executed without waiting for results. If
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427 AND-GO is 'call, then a call will be generated. If this is the first
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428 time an ilisp command has been executed, the lisp will also be
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429 initialized from the files in ilisp-load-inits. If there is an error,
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430 comint-errorp will be T and it will be handled by HANDLER."
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431 (ilisp-init t)
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432 (let ((process (ilisp-process))
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433 (dispatch (eq and-go 'dispatch)))
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434 (if message
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435 (message "%s" (if dispatch
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436 (concat "Started " message)
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437 message)))
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438 ;; No completion table
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439 (setq ilisp-original nil)
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440 (if (memq and-go '(t call))
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441 (progn (comint-send process string nil nil status message handler)
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442 (if (eq and-go 'call)
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443 (call-defun-lisp nil)
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444 (switch-to-lisp t t))
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445 nil)
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446 (let* ((save (ilisp-value 'ilisp-save-command t))
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447 (result
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448 (comint-send
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449 process
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450 (if save (format save string) string)
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451 ;; Interrupt without waiting
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452 t (if (not dispatch) 'wait) status message handler)))
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453 (if save
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454 (comint-send
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455 process
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456 (ilisp-value 'ilisp-restore-command t)
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457 t nil 'restore "Restore" t t))
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458 (if (not dispatch)
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459 (progn
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460 (while (not (cdr result))
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461 (sit-for 0)
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462 (accept-process-output))
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463 (comint-remove-whitespace (car result))))))))
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464
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465
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466
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467 ;;;
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468 (defun ilisp-load-or-send (file)
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469 "Try to load FILE into the inferior LISP. If the file is not
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470 accessible in the inferior LISP as determined by
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471 ilisp-load-or-send-command, then visit the file and send the file over
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472 the process interface."
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473 (let* ((command
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474 (format (ilisp-value 'ilisp-load-or-send-command)
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475 (lisp-file-extension
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476 file
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477 (ilisp-value 'ilisp-init-binary-extension t))
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478 file)))
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479 (set-ilisp-value 'ilisp-load-files
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480 (nconc (ilisp-value 'ilisp-load-files t) (list file)))
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481 (comint-send
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482 (ilisp-process) command t nil 'load
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483 (format "Loading %s" file)
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484 (function (lambda (error wait message output last)
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485 (let* ((file (lisp-last ilisp-load-files))
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486 (process (get-buffer-process (current-buffer)))
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487 (case-fold-search t))
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488 (if (and output
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489 (string-match "nil" (car (lisp-last-line output))))
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490 (let* ((old-buffer (get-file-buffer file))
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491 (buffer (find-file-noselect file))
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492 (string (save-excursion
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493 (set-buffer buffer)
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494 (buffer-string))))
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495 (if (not old-buffer) (kill-buffer buffer))
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496 (if (string= "" string)
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497 (abort-commands-lisp (format "Can't find file %s" file))
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498 (comint-send
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499 process
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|
500 (format ilisp-block-command string)
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501 t nil 'send (format "Sending %s" file)
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502 (function (lambda (error wait message output last)
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503 (if error
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|
504 (progn
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|
505 (comint-display-error output)
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|
506 (abort-commands-lisp
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|
507 (format "Error sending %s"
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|
|
508 (lisp-last ilisp-load-files))))
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|
|
509 (setq ilisp-load-files
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|
510 (delq (lisp-last ilisp-load-files)
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|
511 ilisp-load-files))))))))
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|
512 (if error (ilisp-handler error wait message output last))
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513 (setq ilisp-load-files (delq file ilisp-load-files)))))))))
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