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1 ;;; -*-Emacs-Lisp-*- General command interpreter in a window stuff
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2 ;;; Copyright Olin Shivers (1988).
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3 ;;; Please imagine a long, tedious, legalistic 5-page gnu-style copyright
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4 ;;; notice appearing here to the effect that you may use this code any
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5 ;;; way you like, as long as you don't charge money for it, remove this
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6 ;;; notice, or hold me liable for its results.
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7
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8 ;;; This hopefully generalises shell mode, lisp mode, tea mode, soar mode,...
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9 ;;; Hacked from tea.el and shell.el by Olin Shivers (shivers@cs.cmu.edu). 8/88
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10
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11 ;;; This file defines a general command-interpreter-in-a-buffer package
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12 ;;; (comint mode). The idea is that you can build specific process-in-a-buffer
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13 ;;; modes on top of comint mode -- e.g., lisp, shell, scheme, T, soar, ....
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14 ;;; This way, all these specific packages share a common base functionality,
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15 ;;; and a common set of bindings, which makes them easier to use (and
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16 ;;; saves code, implementation time, etc., etc.).
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17 ;;;
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18 ;;; Several packages are already defined using comint mode:
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19 ;;; - The file cmushell.el defines cmushell and cmulisp mode.
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20 ;;; Cmushell and cmulisp mode are similar to, and intended to replace,
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21 ;;; their counterparts in the standard gnu emacs release (in shell.el).
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22 ;;; These replacements are more featureful, robust, and uniform than the
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23 ;;; released versions. The key bindings in lisp mode are also more compatible
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24 ;;; with the bindings of Hemlock and Zwei (the Lisp Machine emacs).
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25 ;;;
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26 ;;; - The file cmuscheme.el defines inferior-scheme mode.
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27 ;;; - The file tea.el tunes scheme and inferior-scheme modes for T.
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28 ;;; - The file soar.el tunes lisp and inferior-lisp modes for Soar.
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29
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30 ;;; For documentation on the functionality provided by comint mode, and
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31 ;;; the hooks available for customising it, see the comments below.
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32 ;;; For further information on the standard derived modes (shell,
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33 ;;; inferior-lisp, inferior-scheme, ...), see the relevant source files.
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34
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35 ;;; Please send me bug reports, bug fixes, and extensions, so that I can
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36 ;;; merge them into the master source.
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37
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38 ;;; For hints on converting existing process modes (e.g., tex-mode,
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39 ;;; background, dbx, gdb, kermit, prolog, telnet) to use comint-mode
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40 ;;; instead of shell-mode, see the notes at the end of this file.
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41
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42 (provide 'comint)
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43
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44
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45 ;;; Brief Command Documentation:
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46 ;;;============================================================================
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47 ;;; Comint Mode Commands: (common to all derived modes, like cmushell & cmulisp
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48 ;;; mode)
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49 ;;;
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50 ;;; m-p comint-previous-input Cycle backwards in input history
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51 ;;; m-n comint-next-input Cycle forwards
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52 ;;; c-c r comint-previous-input-matching Search backwards in input history
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53 ;;; return comint-send-input
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54 ;;; c-a comint-bol Beginning of line; skip prompt.
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55 ;;; c-d comint-delchar-or-maybe-eof Delete char unless at end of buff.
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56 ;;; c-c c-u comint-kill-input ^u
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57 ;;; c-c c-w backward-kill-word ^w
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58 ;;; c-c c-c comint-interrupt-subjob ^c
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59 ;;; c-c c-z comint-stop-subjob ^z
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60 ;;; c-c c-\ comint-quit-subjob ^\
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61 ;;; c-c c-o comint-kill-output Delete last batch of process output
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62 ;;; c-c c-r comint-show-output Show last batch of process output
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63 ;;;
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64 ;;; Not bound by default in comint-mode
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65 ;;; send-invisible Read a line w/o echo, and send to proc
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66 ;;; (These are bound in shell-mode)
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67 ;;; comint-dynamic-complete Complete filename at point.
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68 ;;; comint-dynamic-list-completions List completions in help buffer.
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69 ;;; comint-replace-by-expanded-filename Expand and complete filename at point;
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70 ;;; replace with expanded/completed name.
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71 ;;; comint-kill-subjob No mercy.
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72 ;;; comint-continue-subjob Send CONT signal to buffer's process
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73 ;;; group. Useful if you accidentally
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74 ;;; suspend your process (with C-c C-z).
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75 ;;;
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76 ;;; Bound for RMS -- I prefer the input history stuff, but you might like 'em.
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77 ;;; m-P comint-msearch-input Search backwards for prompt
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78 ;;; m-N comint-psearch-input Search forwards for prompt
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79 ;;; C-cR comint-msearch-input-matching Search backwards for prompt & string
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80
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81 ;;; comint-mode-hook is the comint mode hook. Basically for your keybindings.
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82 ;;; comint-load-hook is run after loading in this package.
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83
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84
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85 ;;; Buffer Local Variables:
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86 ;;;============================================================================
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87 ;;; Comint mode buffer local variables:
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88 ;;; comint-prompt-regexp - string comint-bol uses to match prompt.
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89 ;;; comint-last-input-end - marker For comint-kill-output command
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90 ;;; input-ring-size - integer For the input history
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91 ;;; input-ring - ring mechanism
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92 ;;; input-ring-index - marker ...
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93 ;;; comint-last-input-match - string ...
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94 ;;; comint-get-old-input - function Hooks for specific
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95 ;;; comint-input-sentinel - function process-in-a-buffer
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96 ;;; comint-input-filter - function modes.
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97 (defvar comint-prompt-regexp "^"
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98 "Regexp to recognise prompts in the inferior process.
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99 Defaults to \"^\", the null string at BOL.
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100
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101 Good choices:
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102 Canonical Lisp: \"^[^> ]*>+:? *\" (Lucid, franz, kcl, T, cscheme, oaklisp)
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103 Lucid Common Lisp: \"^\\(>\\|\\(->\\)+\\) *\"
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104 franz: \"^\\(->\\|<[0-9]*>:\\) *\"
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105 kcl: \"^>+ *\"
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106 shell: \"^[^#$%>]*[#$%>] *\"
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107 T: \"^>+ *\"
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108
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109 This is a good thing to set in mode hooks.")
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110
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111 (defvar input-ring-size 30
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112 "Size of input history ring.")
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113
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114 ;;; Here are the per-interpreter hooks.
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115 (defvar comint-get-old-input (function comint-get-old-input-default)
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116 "Function that submits old text in comint mode.
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117 This function is called when return is typed while the point is in old text.
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118 It returns the text to be submitted as process input. The default is
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119 comint-get-old-input-default, which grabs the current line, and strips off
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120 leading text matching comint-prompt-regexp")
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121
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122 (defvar comint-input-sentinel (function ignore)
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123 "Called on each input submitted to comint mode process by comint-send-input.
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124 Thus it can, for instance, track cd/pushd/popd commands issued to the csh.")
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125
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126 (defvar comint-input-filter
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127 (function (lambda (str) (not (string-match "\\`\\s *\\'" str))))
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128 "Predicate for filtering additions to input history.
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129 Only inputs answering true to this function are saved on the input
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130 history list. Default is to save anything that isn't all whitespace")
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131
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132 (defvar comint-mode-hook '()
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133 "Called upon entry into comint-mode")
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134
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135 (defvar comint-mode-map nil)
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136
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137 ;; Added for ILISP
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138 (defvar comint-input-chunk-size 512)
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139
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140
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141
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142 (defun comint-mode ()
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143 "Major mode for interacting with an inferior interpreter.
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144 Interpreter name is same as buffer name, sans the asterisks.
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145 Return at end of buffer sends line as input.
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146 Return not at end copies rest of line to end and sends it.
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147
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148 This mode is typically customised to create inferior-lisp-mode,
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149 shell-mode, etc.. This can be done by setting the hooks
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150 comint-input-sentinel, comint-input-filter, and comint-get-old-input to
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151 appropriate functions, and the variable comint-prompt-regexp to
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152 the appropriate regular expression.
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153
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154 An input history is maintained of size input-ring-size, and
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155 can be accessed with the commands comint-next-input [\\[comint-next-input]] and
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156 comint-previous-input [\\[comint-previous-input]]. Commands not keybound by
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157 default are send-invisible, comint-dynamic-complete, and
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158 comint-list-dynamic-completions.
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159 \\{comint-mode-map}
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160 If you accidentally suspend your process, use \\[comint-continue-subjob]
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161 to continue it.
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162
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163 Entry to this mode runs the hooks on comint-mode-hook"
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164 (interactive)
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165 (let ((old-ring (and (assq 'input-ring (buffer-local-variables))
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166 (boundp 'input-ring)
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167 input-ring)))
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168 (kill-all-local-variables)
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169 (setq major-mode 'comint-mode)
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170 (setq mode-name "Comint")
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171 (setq mode-line-process '(": %s"))
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172 (use-local-map comint-mode-map)
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173 (make-local-variable 'comint-last-input-end)
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174 (setq comint-last-input-end (make-marker))
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175 (make-local-variable 'comint-last-input-match)
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176 (setq comint-last-input-match "")
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177 (make-variable-buffer-local 'comint-prompt-regexp) ; Don't set; default
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178 (make-variable-buffer-local 'input-ring-size) ; ...to global val.
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179 (make-local-variable 'input-ring)
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180 (make-local-variable 'input-ring-index)
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181 (setq input-ring-index 0)
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182 (make-variable-buffer-local 'comint-get-old-input)
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183 (make-variable-buffer-local 'comint-input-sentinel)
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184 (make-variable-buffer-local 'comint-input-filter)
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185 (run-hooks 'comint-mode-hook)
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186 ;Do this after the hook so the user can mung INPUT-RING-SIZE w/his hook.
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187 ;The test is so we don't lose history if we run comint-mode twice in
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188 ;a buffer.
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189 (setq input-ring (if (ring-p old-ring) old-ring
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190 (make-ring input-ring-size)))))
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191
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192 (if comint-mode-map
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193 nil
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194 (setq comint-mode-map (make-sparse-keymap))
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195 (define-key comint-mode-map "\ep" 'comint-previous-input)
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196 (define-key comint-mode-map "\en" 'comint-next-input)
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197 (define-key comint-mode-map "\C-m" 'comint-send-input)
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198 (define-key comint-mode-map "\C-d" 'comint-delchar-or-maybe-eof)
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199 (define-key comint-mode-map "\C-a" 'comint-bol)
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200 (define-key comint-mode-map "\C-c\C-u" 'comint-kill-input)
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201 (define-key comint-mode-map "\C-c\C-w" 'backward-kill-word)
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202 (define-key comint-mode-map "\C-c\C-c" 'comint-interrupt-subjob)
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203 (define-key comint-mode-map "\C-c\C-z" 'comint-stop-subjob)
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204 (define-key comint-mode-map "\C-c\C-\\" 'comint-quit-subjob)
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205 (define-key comint-mode-map "\C-c\C-o" 'comint-kill-output)
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206 (define-key comint-mode-map "\C-cr" 'comint-previous-input-matching)
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207 (define-key comint-mode-map "\C-c\C-r" 'comint-show-output)
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208 ;;; Here's the prompt-search stuff I installed for RMS to try...
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209 (define-key comint-mode-map "\eP" 'comint-msearch-input)
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210 (define-key comint-mode-map "\eN" 'comint-psearch-input)
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211 (define-key comint-mode-map "\C-cR" 'comint-msearch-input-matching))
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212
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213
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214 ;;; This function is used to make a full copy of the comint mode map,
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215 ;;; so that client modes won't interfere with each other. This function
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216 ;;; isn't necessary in emacs 18.5x, but we keep it around for 18.4x versions.
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217 (defun full-copy-sparse-keymap (km)
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218 "Recursively copy the sparse keymap KM"
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219 (cond ((consp km)
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220 (cons (full-copy-sparse-keymap (car km))
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221 (full-copy-sparse-keymap (cdr km))))
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222 (t km)))
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223
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224 (defun comint-check-proc (buffer-name)
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225 "True if there is a process associated w/buffer BUFFER-NAME, and
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226 it is alive (status RUN or STOP)."
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227 (let ((proc (get-buffer-process buffer-name)))
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228 (and proc (memq (process-status proc) '(run stop)))))
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229
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230 ;;; Note that this guy, unlike shell.el's make-shell, barfs if you pass it ()
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231 ;;; for the second argument (program).
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232 (defun make-comint (name program &optional startfile &rest switches)
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233 (let* ((buffer (get-buffer-create (concat "*" name "*")))
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234 (proc (get-buffer-process buffer)))
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235 ;; If no process, or nuked process, crank up a new one and put buffer in
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236 ;; comint mode. Otherwise, leave buffer and existing process alone.
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237 (cond ((or (not proc) (not (memq (process-status proc) '(run stop))))
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238 (comint-exec buffer name program startfile switches)
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239 (save-excursion
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240 (set-buffer buffer)
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241 (comint-mode)))) ; Install local vars, mode, keymap, ...
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242 buffer))
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243
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244 (defun comint-exec (buffer name command startfile switches)
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245 "Fires up a process in buffer for comint modes.
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246 Blasts any old process running in the buffer. Doesn't set the buffer mode.
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247 You can use this to cheaply run a series of processes in the same comint
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248 buffer."
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249 (save-excursion
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250 (set-buffer buffer)
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251 (let ((proc (get-buffer-process buffer))) ; Blast any old process.
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252 (if proc (delete-process proc)))
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253 ;; Crank up a new process
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254 (let ((proc (apply 'start-process name buffer (concat exec-directory "env")
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255 (format "TERMCAP=emacs:co#%d:tc=unknown:"
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256 (screen-width))
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257 "TERM=emacs" "EMACS=t" "-" command switches)))
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258 ;; Feed it the startfile.
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259 (cond (startfile
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260 ;;This is guaranteed to wait long enough
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261 ;;but has bad results if the comint does not prompt at all
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262 ;; (while (= size (buffer-size))
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263 ;; (sleep-for 1))
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264 ;;I hope 1 second is enough!
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265 (sleep-for 1)
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266 (goto-char (point-max))
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267 (insert-file-contents startfile)
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268 (setq startfile (buffer-substring (point) (point-max)))
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269 (delete-region (point) (point-max))
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270 (process-send-string proc startfile)))
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271 ;; Jump to the end, and set the process mark.
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272 (goto-char (point-max))
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273 (set-marker (process-mark proc) (point)))
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274 buffer))
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275
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276
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277
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278 ;;; Ring Code
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279 ;;;============================================================================
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280 ;;; This code defines a ring data structure. A ring is a
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281 ;;; (hd-index tl-index . vector)
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282 ;;; list. You can insert to, remove from, and rotate a ring. When the ring
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283 ;;; fills up, insertions cause the oldest elts to be quietly dropped.
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284 ;;;
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285 ;;; HEAD = index of the newest item on the ring.
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286 ;;; TAIL = index of the oldest item on the ring.
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287 ;;;
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288 ;;; These functions are used by the input history mechanism, but they can
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289 ;;; be used for other purposes as well.
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290
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291 (defun ring-p (x)
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292 "T if X is a ring; NIL otherwise."
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293 (and (consp x) (integerp (car x))
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294 (consp (cdr x)) (integerp (car (cdr x)))
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295 (vectorp (cdr (cdr x)))))
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296
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297 (defun make-ring (size)
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298 "Make a ring that can contain SIZE elts"
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299 (cons 1 (cons 0 (make-vector (+ size 1) nil))))
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300
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301 (defun ring-plus1 (index veclen)
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302 "INDEX+1, with wraparound"
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303 (let ((new-index (+ index 1)))
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304 (if (= new-index veclen) 0 new-index)))
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305
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306 (defun ring-minus1 (index veclen)
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307 "INDEX-1, with wraparound"
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308 (- (if (= 0 index) veclen index) 1))
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309
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310 (defun ring-length (ring)
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311 (let ((hd (car ring)) (tl (car (cdr ring))) (siz (length (cdr (cdr ring)))))
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312 (let ((len (if (<= hd tl) (+ 1 (- tl hd)) (+ 1 tl (- siz hd)))))
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313 (if (= len siz) 0 len))))
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314
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315 (defun ring-empty-p (ring)
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316 (= 0 (ring-length ring)))
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317
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318 (defun ring-insert (ring item)
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319 "Insert a new item onto the ring. If the ring is full, dump the oldest
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320 item to make room."
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321 (let* ((vec (cdr (cdr ring))) (len (length vec))
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322 (new-hd (ring-minus1 (car ring) len)))
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323 (setcar ring new-hd)
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324 (aset vec new-hd item)
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325 (if (ring-empty-p ring) ;overflow -- dump one off the tail.
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326 (setcar (cdr ring) (ring-minus1 (car (cdr ring)) len)))))
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327
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328 (defun ring-remove (ring)
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329 "Remove the oldest item retained on the ring."
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330 (if (ring-empty-p ring) (error "Ring empty")
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331 (let ((tl (car (cdr ring))) (vec (cdr (cdr ring))))
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332 (set-car (cdr ring) (ring-minus1 tl (length vec)))
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333 (aref vec tl))))
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334
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335 ;;; This isn't actually used in this package. I just threw it in in case
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336 ;;; someone else wanted it. If you want rotating-ring behavior on your history
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337 ;;; retrieval (analagous to kill ring behavior), this function is what you
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338 ;;; need. I should write the yank-input and yank-pop-input-or-kill to go with
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339 ;;; this, and not bind it to a key by default, so it would be available to
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340 ;;; people who want to bind it to a key. But who would want it? Blech.
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341 (defun ring-rotate (ring n)
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342 (if (not (= n 0))
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343 (if (ring-empty-p ring) ;Is this the right error check?
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344 (error "ring empty")
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345 (let ((hd (car ring)) (tl (car (cdr ring))) (vec (cdr (cdr ring))))
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346 (let ((len (length vec)))
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347 (while (> n 0)
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348 (setq tl (ring-plus1 tl len))
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349 (aset ring tl (aref ring hd))
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350 (setq hd (ring-plus1 hd len))
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351 (setq n (- n 1)))
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352 (while (< n 0)
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353 (setq hd (ring-minus1 hd len))
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354 (aset vec hd (aref vec tl))
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355 (setq tl (ring-minus1 tl len))
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356 (setq n (- n 1))))
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357 (set-car ring hd)
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358 (set-car (cdr ring) tl)))))
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359
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360 (defun comint-mod (n m)
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361 "Returns N mod M. M is positive. Answer is guaranteed to be non-negative,
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362 and less than m."
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363 (let ((n (% n m)))
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364 (if (>= n 0) n
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365 (+ n
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366 (if (>= m 0) m (- m)))))) ; (abs m)
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367
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368 (defun ring-ref (ring index)
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369 (let ((numelts (ring-length ring)))
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370 (if (= numelts 0) (error "indexed empty ring")
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371 (let* ((hd (car ring)) (tl (car (cdr ring))) (vec (cdr (cdr ring)))
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372 (index (comint-mod index numelts))
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373 (vec-index (comint-mod (+ index hd)
|
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374 (length vec))))
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375 (aref vec vec-index)))))
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376
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377
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378 ;;; Input history retrieval commands
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379 ;;; M-p -- previous input M-n -- next input
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380 ;;; C-c r -- previous input matching
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|
381 ;;; ===========================================================================
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382
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383 (defun comint-previous-input (arg)
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384 "Cycle backwards through input history."
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385 (interactive "*p")
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386 (let ((len (ring-length input-ring)))
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387 (cond ((<= len 0)
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388 (message "Empty input ring")
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389 (ding))
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|
390 ((not (comint-after-pmark-p))
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|
|
391 (message "Not after process mark")
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|
|
392 (ding))
|
|
|
393 (t
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394 (cond ((eq last-command 'comint-previous-input)
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395 (delete-region (mark) (point))
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|
|
396 (set-mark (point)))
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|
|
397 (t
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|
|
398 (setq input-ring-index
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|
|
399 (if (> arg 0) -1
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|
|
400 (if (< arg 0) 1 0)))
|
|
|
401 (push-mark (point))))
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|
|
402 (setq input-ring-index (comint-mod (+ input-ring-index arg) len))
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|
|
403 (message "%d" (1+ input-ring-index))
|
|
|
404 (insert (ring-ref input-ring input-ring-index))
|
|
|
405 (setq this-command 'comint-previous-input))
|
|
|
406 (t (ding)))))
|
|
|
407
|
|
|
408 (defun comint-next-input (arg)
|
|
|
409 "Cycle forwards through input history."
|
|
|
410 (interactive "*p")
|
|
|
411 (comint-previous-input (- arg)))
|
|
|
412
|
|
|
413 (defvar comint-last-input-match ""
|
|
|
414 "Last string searched for by comint input history search, for defaulting.
|
|
|
415 Buffer local variable.")
|
|
|
416
|
|
|
417 (defun comint-previous-input-matching (str)
|
|
|
418 "Searches backwards through input history for substring match"
|
|
|
419 (interactive (let ((s (read-from-minibuffer
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|
|
420 (format "Command substring (default %s): "
|
|
|
421 comint-last-input-match))))
|
|
|
422 (list (if (string= s "") comint-last-input-match s))))
|
|
|
423 ; (interactive "sCommand substring: ")
|
|
|
424 (setq comint-last-input-match str) ; update default
|
|
|
425 (let ((str (regexp-quote str))
|
|
|
426 (len (ring-length input-ring))
|
|
|
427 (n 0))
|
|
|
428 (while (and (<= n len) (not (string-match str (ring-ref input-ring n))))
|
|
|
429 (setq n (+ n 1)))
|
|
|
430 (cond ((<= n len) (comint-previous-input (+ n 1)))
|
|
|
431 (t (error "Not found.")))))
|
|
|
432
|
|
|
433 ;;; These next three commands are alternatives to the input history commands --
|
|
|
434 ;;; comint-next-input, comint-previous-input and
|
|
|
435 ;;; comint-previous-input-matching. They search through the process buffer
|
|
|
436 ;;; text looking for occurrences of the prompt. RMS likes them better;
|
|
|
437 ;;; I don't. Bound to M-P, M-N, and C-c R (uppercase P, N, and R) for
|
|
|
438 ;;; now. Try'em out. Go with what you like...
|
|
|
439
|
|
|
440 ;;; comint-msearch-input-matching prompts for a string, not a regexp.
|
|
|
441 ;;; This could be considered to be the wrong thing. I decided to keep it
|
|
|
442 ;;; simple, and not make the user worry about regexps. This, of course,
|
|
|
443 ;;; limits functionality.
|
|
|
444
|
|
|
445 (defun comint-psearch-input ()
|
|
|
446 "Search forwards for next occurrence of prompt and skip to end of line.
|
|
|
447 \(prompt is anything matching regexp comint-prompt-regexp)"
|
|
|
448 (interactive)
|
|
|
449 (if (re-search-forward comint-prompt-regexp (point-max) t)
|
|
|
450 (end-of-line)
|
|
|
451 (error "No occurrence of prompt found")))
|
|
|
452
|
|
|
453 (defun comint-msearch-input ()
|
|
|
454 "Search backwards for previous occurrence of prompt and skip to end of line.
|
|
|
455 Search starts from beginning of current line."
|
|
|
456 (interactive)
|
|
|
457 (let ((p (save-excursion
|
|
|
458 (beginning-of-line)
|
|
|
459 (cond ((re-search-backward comint-prompt-regexp (point-min) t)
|
|
|
460 (end-of-line)
|
|
|
461 (point))
|
|
|
462 (t nil)))))
|
|
|
463 (if p (goto-char p)
|
|
|
464 (error "No occurrence of prompt found"))))
|
|
|
465
|
|
|
466 (defun comint-msearch-input-matching (str)
|
|
|
467 "Search backwards for occurrence of prompt followed by STRING.
|
|
|
468 STRING is prompted for, and is NOT a regular expression."
|
|
|
469 (interactive (let ((s (read-from-minibuffer
|
|
|
470 (format "Command (default %s): "
|
|
|
471 comint-last-input-match))))
|
|
|
472 (list (if (string= s "") comint-last-input-match s))))
|
|
|
473 ; (interactive "sCommand: ")
|
|
|
474 (setq comint-last-input-match str) ; update default
|
|
|
475 (let* ((r (concat comint-prompt-regexp (regexp-quote str)))
|
|
|
476 (p (save-excursion
|
|
|
477 (beginning-of-line)
|
|
|
478 (cond ((re-search-backward r (point-min) t)
|
|
|
479 (end-of-line)
|
|
|
480 (point))
|
|
|
481 (t nil)))))
|
|
|
482 (if p (goto-char p)
|
|
|
483 (error "No match"))))
|
|
|
484
|
|
|
485 (defun comint-send-input ()
|
|
|
486 "Send input to process. After the process output mark, sends all text
|
|
|
487 from the process mark to point as input to the process. Before the
|
|
|
488 process output mark, calls value of variable comint-get-old-input to retrieve
|
|
|
489 old input, copies it to the end of the buffer, and sends it. A terminal
|
|
|
490 newline is also inserted into the buffer and sent to the process. In either
|
|
|
491 case, value of variable comint-input-sentinel is called on the input before
|
|
|
492 sending it. The input is entered into the input history ring, if value of
|
|
|
493 variable comint-input-filter returns T when called on the input.
|
|
|
494
|
|
|
495 comint-get-old-input, comint-input-sentinel, and comint-input-filter are chosen
|
|
|
496 according to the command interpreter running in the buffer. E.g.,
|
|
|
497 If the interpreter is the csh,
|
|
|
498 comint-get-old-input is the default: take the current line, discard any
|
|
|
499 initial string matching regexp comint-prompt-regexp.
|
|
|
500 comint-input-sentinel monitors input for \"cd\", \"pushd\", and \"popd\"
|
|
|
501 commands. When it sees one, it cd's the buffer.
|
|
|
502 comint-input-filter is the default: returns T if the input isn't all white
|
|
|
503 space.
|
|
|
504
|
|
|
505 If the comint is Lucid Common Lisp,
|
|
|
506 comint-get-old-input snarfs the sexp ending at point.
|
|
|
507 comint-input-sentinel does nothing.
|
|
|
508 comint-input-filter returns NIL if the input matches input-filter-regexp,
|
|
|
509 which matches (1) all whitespace (2) :a, :c, etc.
|
|
|
510
|
|
|
511 Similarly for Soar, Scheme, etc.."
|
|
|
512 (interactive)
|
|
|
513 ;; Note that the input string does not include its terminal newline.
|
|
|
514 (let ((proc (get-buffer-process (current-buffer))))
|
|
|
515 (if (not proc) (error "Current buffer has no process")
|
|
|
516 (let* ((pmark (process-mark proc))
|
|
|
517 (pmark-val (marker-position pmark))
|
|
|
518 (input (if (>= (point) pmark-val)
|
|
|
519 (buffer-substring pmark (point))
|
|
|
520 (let ((copy (funcall comint-get-old-input)))
|
|
|
521 (goto-char pmark)
|
|
|
522 (insert copy)
|
|
|
523 copy))))
|
|
|
524 (insert ?\n)
|
|
|
525 (if (funcall comint-input-filter input) (ring-insert input-ring input))
|
|
|
526 (funcall comint-input-sentinel input)
|
|
|
527 (process-send-string proc input)
|
|
|
528 (process-send-string proc "\n")
|
|
|
529 (set-marker (process-mark proc) (point))
|
|
|
530 (set-marker comint-last-input-end (point))))))
|
|
|
531
|
|
|
532 (defun comint-get-old-input-default ()
|
|
|
533 "Default for comint-get-old-input: take the current line, and discard
|
|
|
534 any initial text matching comint-prompt-regexp."
|
|
|
535 (save-excursion
|
|
|
536 (beginning-of-line)
|
|
|
537 (comint-skip-prompt)
|
|
|
538 (let ((beg (point)))
|
|
|
539 (end-of-line)
|
|
|
540 (buffer-substring beg (point)))))
|
|
|
541
|
|
|
542 (defun comint-skip-prompt ()
|
|
|
543 "Skip past the text matching regexp comint-prompt-regexp.
|
|
|
544 If this takes us past the end of the current line, don't skip at all."
|
|
|
545 (let ((eol (save-excursion (end-of-line) (point))))
|
|
|
546 (if (and (looking-at comint-prompt-regexp)
|
|
|
547 (<= (match-end 0) eol))
|
|
|
548 (goto-char (match-end 0)))))
|
|
|
549
|
|
|
550
|
|
|
551 (defun comint-after-pmark-p ()
|
|
|
552 "Is point after the process output marker?"
|
|
|
553 ;; Since output could come into the buffer after we looked at the point
|
|
|
554 ;; but before we looked at the process marker's value, we explicitly
|
|
|
555 ;; serialise. This is just because I don't know whether or not emacs
|
|
|
556 ;; services input during execution of lisp commands.
|
|
|
557 (let ((proc-pos (marker-position
|
|
|
558 (process-mark (get-buffer-process (current-buffer))))))
|
|
|
559 (<= proc-pos (point))))
|
|
|
560
|
|
|
561 (defun comint-bol (arg)
|
|
|
562 "Goes to the beginning of line, then skips past the prompt, if any.
|
|
|
563 If a prefix argument is given (\\[universal-argument]), then no prompt skip
|
|
|
564 -- go straight to column 0.
|
|
|
565
|
|
|
566 The prompt skip is done by skipping text matching the regular expression
|
|
|
567 comint-prompt-regexp, a buffer local variable.
|
|
|
568
|
|
|
569 If you don't like this command, reset c-a to beginning-of-line
|
|
|
570 in your hook, comint-mode-hook."
|
|
|
571 (interactive "P")
|
|
|
572 (beginning-of-line)
|
|
|
573 (if (null arg) (comint-skip-prompt)))
|
|
|
574
|
|
|
575 ;;; These two functions are for entering text you don't want echoed or
|
|
|
576 ;;; saved -- typically passwords to ftp, telnet, or somesuch.
|
|
|
577 ;;; Just enter m-x send-invisible and type in your line.
|
|
|
578
|
|
|
579 (defun comint-read-noecho (prompt)
|
|
|
580 "Prompt the user with argument PROMPT. Read a single line of text
|
|
|
581 without echoing, and return it. Note that the keystrokes comprising
|
|
|
582 the text can still be recovered (temporarily) with \\[view-lossage]. This
|
|
|
583 may be a security bug for some applications."
|
|
|
584 (let ((echo-keystrokes 0)
|
|
|
585 (answ "")
|
|
|
586 tem)
|
|
|
587 (if (and (stringp prompt) (not (string= (message prompt) "")))
|
|
|
588 (message prompt))
|
|
|
589 (while (not(or (= (setq tem (read-char)) ?\^m)
|
|
|
590 (= tem ?\n)))
|
|
|
591 (setq answ (concat answ (char-to-string tem))))
|
|
|
592 (message "")
|
|
|
593 answ))
|
|
|
594
|
|
|
595 (defun send-invisible (str)
|
|
|
596 "Read a string without echoing, and send it to the process running
|
|
|
597 in the current buffer. A new-line is additionally sent. String is not
|
|
|
598 saved on comint input history list.
|
|
|
599 Security bug: your string can still be temporarily recovered with
|
|
|
600 \\[view-lossage]."
|
|
|
601 ; (interactive (list (comint-read-noecho "Enter non-echoed text")))
|
|
|
602 (interactive "P") ; Defeat snooping via C-x esc
|
|
|
603 (let ((proc (get-buffer-process (current-buffer))))
|
|
|
604 (if (not proc) (error "Current buffer has no process")
|
|
|
605 (process-send-string proc
|
|
|
606 (if (stringp str) str
|
|
|
607 (comint-read-noecho "Enter non-echoed text")))
|
|
|
608 (process-send-string proc "\n"))))
|
|
|
609
|
|
|
610 ;;; Random input hackage
|
|
|
611
|
|
|
612 (defun comint-kill-output ()
|
|
|
613 "Kill all output from interpreter since last input."
|
|
|
614 (interactive)
|
|
|
615 (let ((pmark (process-mark (get-buffer-process (current-buffer)))))
|
|
|
616 (kill-region comint-last-input-end pmark)
|
|
|
617 (goto-char pmark)
|
|
|
618 (insert "*** output flushed ***\n")
|
|
|
619 (set-marker pmark (point))))
|
|
|
620
|
|
|
621 (defun comint-show-output ()
|
|
|
622 "Display start of this batch of interpreter output at top of window.
|
|
|
623 Also put cursor there."
|
|
|
624 (interactive)
|
|
|
625 (goto-char comint-last-input-end)
|
|
|
626 (backward-char)
|
|
|
627 (beginning-of-line)
|
|
|
628 (set-window-start (selected-window) (point))
|
|
|
629 (end-of-line))
|
|
|
630
|
|
|
631 (defun comint-interrupt-subjob ()
|
|
|
632 "Interrupt the current subjob."
|
|
|
633 (interactive)
|
|
|
634 (interrupt-process nil t))
|
|
|
635
|
|
|
636 (defun comint-kill-subjob ()
|
|
|
637 "Send kill signal to the current subjob."
|
|
|
638 (interactive)
|
|
|
639 (kill-process nil t))
|
|
|
640
|
|
|
641 (defun comint-quit-subjob ()
|
|
|
642 "Send quit signal to the current subjob."
|
|
|
643 (interactive)
|
|
|
644 (quit-process nil t))
|
|
|
645
|
|
|
646 (defun comint-stop-subjob ()
|
|
|
647 "Stop the current subjob.
|
|
|
648 WARNING: if there is no current subjob, you can end up suspending
|
|
|
649 the top-level process running in the buffer. If you accidentally do
|
|
|
650 this, use \\[comint-continue-subjob] to resume the process. (This
|
|
|
651 is not a problem with most shells, since they ignore this signal.)"
|
|
|
652 (interactive)
|
|
|
653 (stop-process nil t))
|
|
|
654
|
|
|
655 (defun comint-continue-subjob ()
|
|
|
656 "Send CONT signal to process buffer's process group.
|
|
|
657 Useful if you accidentally suspend the top-level process."
|
|
|
658 (interactive)
|
|
|
659 (continue-process nil t))
|
|
|
660
|
|
|
661 (defun comint-kill-input ()
|
|
|
662 "Kill all text from last stuff output by interpreter to point."
|
|
|
663 (interactive)
|
|
|
664 (let* ((pmark (process-mark (get-buffer-process (current-buffer))))
|
|
|
665 (p-pos (marker-position pmark)))
|
|
|
666 (if (> (point) p-pos)
|
|
|
667 (kill-region pmark (point)))))
|
|
|
668
|
|
|
669 (defun comint-delchar-or-maybe-eof (arg)
|
|
|
670 "Delete ARG characters forward, or send an EOF to lisp if at end of buffer."
|
|
|
671 (interactive "p")
|
|
|
672 (if (eobp)
|
|
|
673 (process-send-eof)
|
|
|
674 (delete-char arg)))
|
|
|
675
|
|
|
676
|
|
|
677
|
|
|
678
|
|
|
679 ;;; Support for source-file processing commands.
|
|
|
680 ;;;============================================================================
|
|
|
681 ;;; Many command-interpreters (e.g., Lisp, Scheme, Soar) have
|
|
|
682 ;;; commands that process files of source text (e.g. loading or compiling
|
|
|
683 ;;; files). So the corresponding process-in-a-buffer modes have commands
|
|
|
684 ;;; for doing this (e.g., lisp-load-file). The functions below are useful
|
|
|
685 ;;; for defining these commands.
|
|
|
686 ;;;
|
|
|
687 ;;; Alas, these guys don't do exactly the right thing for Lisp, Scheme
|
|
|
688 ;;; and Soar, in that they don't know anything about file extensions.
|
|
|
689 ;;; So the compile/load interface gets the wrong default occasionally.
|
|
|
690 ;;; The load-file/compile-file default mechanism could be smarter -- it
|
|
|
691 ;;; doesn't know about the relationship between filename extensions and
|
|
|
692 ;;; whether the file is source or executable. If you compile foo.lisp
|
|
|
693 ;;; with compile-file, then the next load-file should use foo.bin for
|
|
|
694 ;;; the default, not foo.lisp. This is tricky to do right, particularly
|
|
|
695 ;;; because the extension for executable files varies so much (.o, .bin,
|
|
|
696 ;;; .lbin, .mo, .vo, .ao, ...).
|
|
|
697
|
|
|
698
|
|
|
699 ;;; COMINT-SOURCE-DEFAULT -- determines defaults for source-file processing
|
|
|
700 ;;; commands.
|
|
|
701 ;;;
|
|
|
702 ;;; COMINT-CHECK-SOURCE -- if FNAME is in a modified buffer, asks you if you
|
|
|
703 ;;; want to save the buffer before issuing any process requests to the command
|
|
|
704 ;;; interpreter.
|
|
|
705 ;;;
|
|
|
706 ;;; COMINT-GET-SOURCE -- used by the source-file processing commands to prompt
|
|
|
707 ;;; for the file to process.
|
|
|
708
|
|
|
709 ;;; (COMINT-SOURCE-DEFAULT previous-dir/file source-modes)
|
|
|
710 ;;;============================================================================
|
|
|
711 ;;; This function computes the defaults for the load-file and compile-file
|
|
|
712 ;;; commands for tea, soar, cmulisp, and cmuscheme modes.
|
|
|
713 ;;;
|
|
|
714 ;;; - PREVIOUS-DIR/FILE is a pair (directory . filename) from the last
|
|
|
715 ;;; source-file processing command. NIL if there hasn't been one yet.
|
|
|
716 ;;; - SOURCE-MODES is a list used to determine what buffers contain source
|
|
|
717 ;;; files: if the major mode of the buffer is in SOURCE-MODES, it's source.
|
|
|
718 ;;; Typically, (lisp-mode) or (scheme-mode).
|
|
|
719 ;;;
|
|
|
720 ;;; If the command is given in a file buffer whose major modes is in
|
|
2
|
721 ;;; SOURCE-MODES, then the filename is the default file, and the
|
|
0
|
722 ;;; file's directory is the default directory.
|
|
|
723 ;;;
|
|
|
724 ;;; If the buffer isn't a source file buffer (e.g., it's the process buffer),
|
|
|
725 ;;; then the default directory & file are what was used in the last source-file
|
|
|
726 ;;; processing command (i.e., PREVIOUS-DIR/FILE). If this is the first time
|
|
|
727 ;;; the command has been run (PREVIOUS-DIR/FILE is nil), the default directory
|
|
|
728 ;;; is the cwd, with no default file. (\"no default file\" = nil)
|
|
|
729 ;;;
|
|
|
730 ;;; SOURCE-REGEXP is typically going to be something like (tea-mode)
|
|
|
731 ;;; for T programs, (lisp-mode) for Lisp programs, (soar-mode lisp-mode)
|
|
|
732 ;;; for Soar programs, etc.
|
|
|
733 ;;;
|
|
|
734 ;;; The function returns a pair: (default-directory . default-file).
|
|
|
735
|
|
|
736 (defun comint-source-default (previous-dir/file source-modes)
|
|
|
737 (cond ((and buffer-file-name (memq major-mode source-modes))
|
|
|
738 (cons (file-name-directory buffer-file-name)
|
|
|
739 (file-name-nondirectory buffer-file-name)))
|
|
|
740 (previous-dir/file)
|
|
|
741 (t
|
|
|
742 (cons default-directory nil))))
|
|
|
743
|
|
|
744
|
|
|
745 ;;; (COMINT-CHECK-SOURCE fname)
|
|
|
746 ;;;============================================================================
|
|
|
747 ;;; Prior to loading or compiling (or otherwise processing) a file (in the CMU
|
|
|
748 ;;; process-in-a-buffer modes), this function can be called on the filename.
|
|
|
749 ;;; If the file is loaded into a buffer, and the buffer is modified, the user
|
|
|
750 ;;; is queried to see if he wants to save the buffer before proceeding with
|
|
|
751 ;;; the load or compile.
|
|
|
752
|
|
|
753 (defun comint-check-source (fname)
|
|
|
754 (let ((buff (get-file-buffer fname)))
|
|
|
755 (if (and buff
|
|
|
756 (buffer-modified-p buff)
|
|
|
757 (y-or-n-p (format "Save buffer %s first? "
|
|
|
758 (buffer-name buff))))
|
|
|
759 ;; save BUFF.
|
|
|
760 (let ((old-buffer (current-buffer)))
|
|
|
761 (set-buffer buff)
|
|
|
762 (save-buffer)
|
|
|
763 (set-buffer old-buffer)))))
|
|
|
764
|
|
|
765
|
|
|
766 ;;; (COMINT-GET-SOURCE prompt prev-dir/file source-modes mustmatch-p)
|
|
|
767 ;;;============================================================================
|
|
|
768 ;;; COMINT-GET-SOURCE is used to prompt for filenames in command-interpreter
|
|
|
769 ;;; commands that process source files (like loading or compiling a file).
|
|
|
770 ;;; It prompts for the filename, provides a default, if there is one,
|
|
|
771 ;;; and returns the result filename.
|
|
|
772 ;;;
|
|
|
773 ;;; See COMINT-SOURCE-DEFAULT for more on determining defaults.
|
|
|
774 ;;;
|
|
|
775 ;;; PROMPT is the prompt string. PREV-DIR/FILE is the (directory . file) pair
|
|
|
776 ;;; from the last source processing command. SOURCE-MODES is a list of major
|
|
|
777 ;;; modes used to determine what file buffers contain source files. (These
|
|
|
778 ;;; two arguments are used for determining defaults). If MUSTMATCH-P is true,
|
|
|
779 ;;; then the filename reader will only accept a file that exists.
|
|
|
780 ;;;
|
|
|
781 ;;; A typical use:
|
|
|
782 ;;; (interactive (comint-get-source "Compile file: " prev-lisp-dir/file
|
|
|
783 ;;; "\\.lisp\\'" t))
|
|
|
784
|
|
|
785 (defun comint-get-source (prompt prev-dir/file source-regexp mustmatch-p)
|
|
|
786 (let* ((def (comint-source-default prev-dir/file source-regexp))
|
|
|
787 (defdir (car def))
|
|
|
788 (deffile (cdr def))
|
|
|
789 (ans (read-file-name (if deffile (format "%s(default %s) "
|
|
|
790 prompt deffile)
|
|
|
791 prompt)
|
|
|
792 defdir
|
|
|
793 (concat defdir deffile)
|
|
|
794 mustmatch-p)))
|
|
|
795 (list (expand-file-name (substitute-in-file-name ans)))))
|
|
|
796
|
|
|
797
|
|
|
798 ;;; Filename completion in a buffer
|
|
|
799 ;;; ===========================================================================
|
|
|
800 ;;; Useful completion functions, courtesy of the Ergo group.
|
|
|
801 ;;; M-<Tab> will complete the filename at the cursor as much as possible
|
|
|
802 ;;; M-? will display a list of completions in the help buffer.
|
|
|
803
|
|
|
804 ;;; Three commands:
|
|
|
805 ;;; comint-dynamic-complete Complete filename at point.
|
|
|
806 ;;; comint-dynamic-list-completions List completions in help buffer.
|
|
|
807 ;;; comint-replace-by-expanded-filename Expand and complete filename at point;
|
|
|
808 ;;; replace with expanded/completed name.
|
|
|
809
|
|
|
810 ;;; These are not installed in the comint-mode keymap. But they are
|
|
|
811 ;;; available for people who want them. Shell-mode installs them:
|
|
|
812 ;;; (define-key cmushell-mode-map "\M-\t" 'comint-dynamic-complete)
|
|
|
813 ;;; (define-key cmushell-mode-map "\M-?" 'comint-dynamic-list-completions)))
|
|
|
814 ;;;
|
|
|
815 ;;; Commands like this are fine things to put in load hooks if you
|
|
|
816 ;;; want them present in specific modes. Example:
|
|
|
817 ;;; (setq cmushell-load-hook
|
|
|
818 ;;; '((lambda () (define-key lisp-mode-map "\M-\t"
|
|
|
819 ;;; 'comint-replace-by-expanded-filename))))
|
|
|
820 ;;;
|
|
|
821
|
|
|
822
|
|
|
823 (defun comint-match-partial-pathname ()
|
|
|
824 "Returns the string of an existing filename or causes and error."
|
|
|
825 (if (save-excursion (backward-char 1) (looking-at "\\s ")) ""
|
|
|
826 (save-excursion
|
|
|
827 (re-search-backward "[^~/A-Za-z0-9---_.$#,]+")
|
|
|
828 (re-search-forward "[~/A-Za-z0-9---_.$#,]+")
|
|
|
829 (substitute-in-file-name
|
|
|
830 (buffer-substring (match-beginning 0) (match-end 0))))))
|
|
|
831
|
|
|
832 (defun comint-replace-by-expanded-filename ()
|
|
|
833 "Replace filename at point with expanded, completed name"
|
|
|
834 (interactive)
|
|
|
835 (let* ((pathname (comint-match-partial-pathname))
|
|
|
836 (pathdir (file-name-directory pathname))
|
|
|
837 (pathnondir (file-name-nondirectory pathname))
|
|
|
838 (completion (file-name-completion pathnondir
|
|
|
839 (or pathdir default-directory))))
|
|
|
840 (cond ((null completion)
|
|
|
841 (message "No completions of %s." pathname)
|
|
|
842 (ding))
|
|
|
843 ((eql completion t)
|
|
|
844 (message "Unique completion."))
|
|
|
845 (t ; this means a string was returned.
|
|
|
846 (delete-region (match-beginning 0) (match-end 0))
|
|
|
847 (insert pathdir completion)))))
|
|
|
848
|
|
|
849 (defun comint-dynamic-complete ()
|
|
|
850 "Dynamically complete the filename at point."
|
|
|
851 (interactive)
|
|
|
852 (let* ((pathname (comint-match-partial-pathname))
|
|
|
853 (pathdir (file-name-directory pathname))
|
|
|
854 (pathnondir (file-name-nondirectory pathname))
|
|
|
855 (completion (file-name-completion pathnondir
|
|
|
856 (or pathdir default-directory))))
|
|
|
857 (cond ((null completion)
|
|
|
858 (message "No completions of %s." pathname)
|
|
|
859 (ding))
|
|
|
860 ((eql completion t)
|
|
|
861 (message "Unique completion."))
|
|
|
862 (t ; this means a string was returned.
|
|
|
863 (insert (substring completion (length pathnondir)))))))
|
|
|
864
|
|
|
865 (defun comint-dynamic-list-completions ()
|
|
|
866 "List in help buffer all possible completions of the filename at point."
|
|
|
867 (interactive)
|
|
|
868 (let* ((pathname (comint-match-partial-pathname))
|
|
|
869 (pathdir (file-name-directory pathname))
|
|
|
870 (pathnondir (file-name-nondirectory pathname))
|
|
|
871 (completions
|
|
|
872 (file-name-all-completions pathnondir
|
|
|
873 (or pathdir default-directory))))
|
|
|
874 (cond ((null completions)
|
|
|
875 (message "No completions of %s." pathname)
|
|
|
876 (ding))
|
|
|
877 (t (with-output-to-temp-buffer "*Help*"
|
|
|
878 (display-completion-list completions))))))
|
|
|
879
|
|
|
880 ; Ergo bindings
|
|
|
881 ; (global-set-key "\M-\t" 'comint-replace-by-expanded-filename)
|
|
|
882 ; (global-set-key "\M-?" 'comint-dynamic-list-completions)
|
|
|
883 ; (define-key shell-mode-map "\M-\t" 'comint-dynamic-complete)
|
|
|
884
|
|
|
885 ;;; Log the user, so I know who's using the package during the beta test
|
|
|
886 ;;; period. This just inserts the user's name and current time into a
|
|
|
887 ;;; central file.
|
|
|
888 (defun comint-log-user ()
|
|
|
889 (interactive)
|
|
|
890 (if (file-writable-p "/afs/cs/user/shivers/lib/emacs/logdir/comint.log")
|
|
|
891 (let ((u (getenv "USER"))
|
|
|
892 (old-buff (current-buffer)))
|
|
|
893 (message "logging user in beta test database...")
|
|
|
894 (find-file "/afs/cs/user/shivers/lib/emacs/logdir/comint.log")
|
|
|
895 (cond ((search-forward u nil 'to-end)
|
|
|
896 (search-forward "| ")
|
|
|
897 (kill-line 1))
|
|
|
898 (t (insert (format "%s\t%s\t| " u (current-time-string)))))
|
|
|
899 (insert (format "%s\n" (current-time-string)))
|
|
|
900 (let ((make-backup-files nil)) (save-buffer))
|
|
|
901 (kill-buffer (current-buffer))
|
|
|
902 (set-buffer old-buff))))
|
|
|
903 (comint-log-user)
|
|
|
904
|
|
|
905
|
|
|
906 ;;; Converting process modes to use comint mode
|
|
|
907 ;;; ===========================================================================
|
|
|
908 ;;; Several gnu packages (tex-mode, background, dbx, gdb, kermit, prolog,
|
|
|
909 ;;; telnet are some) use the shell package as clients. Most of them would
|
|
|
910 ;;; be better off using the comint package, but they predate it.
|
|
|
911 ;;;
|
|
|
912 ;;; Altering these packages to use comint mode should greatly
|
|
|
913 ;;; improve their functionality, and is fairly easy.
|
|
|
914 ;;;
|
|
|
915 ;;; Renaming variables
|
|
|
916 ;;; Most of the work is renaming variables and functions. These are the common
|
|
|
917 ;;; ones:
|
|
|
918 ;;; Local variables:
|
|
|
919 ;;; last-input-end comint-last-input-end
|
|
|
920 ;;; last-input-start <unnecessary>
|
|
|
921 ;;; shell-prompt-pattern comint-prompt-regexp
|
|
|
922 ;;; shell-set-directory-error-hook <no equivalent>
|
|
|
923 ;;; Miscellaneous:
|
|
|
924 ;;; shell-set-directory <unnecessary>
|
|
|
925 ;;; shell-mode-map comint-mode-map
|
|
|
926 ;;; Commands:
|
|
|
927 ;;; shell-send-input comint-send-input
|
|
|
928 ;;; shell-send-eof comint-delchar-or-maybe-eof
|
|
|
929 ;;; kill-shell-input comint-kill-input
|
|
|
930 ;;; interrupt-shell-subjob comint-interrupt-subjob
|
|
|
931 ;;; stop-shell-subjob comint-stop-subjob
|
|
|
932 ;;; quit-shell-subjob comint-quit-subjob
|
|
|
933 ;;; kill-shell-subjob comint-kill-subjob
|
|
|
934 ;;; kill-output-from-shell comint-kill-output
|
|
|
935 ;;; show-output-from-shell comint-show-output
|
|
|
936 ;;; copy-last-shell-input Use comint-previous-input/comint-next-input
|
|
|
937 ;;;
|
|
|
938 ;;; LAST-INPUT-START is no longer necessary because inputs are stored on the
|
|
|
939 ;;; input history ring. SHELL-SET-DIRECTORY is gone, its functionality taken
|
|
|
940 ;;; over by SHELL-DIRECTORY-TRACKER, the shell mode's comint-input-sentinel.
|
|
|
941 ;;; Comint mode does not provide functionality equivalent to
|
|
|
942 ;;; shell-set-directory-error-hook; it is gone.
|
|
|
943 ;;;
|
|
|
944 ;;; If you are implementing some process-in-a-buffer mode, called foo-mode, do
|
|
|
945 ;;; *not* create the comint-mode local variables in your foo-mode function.
|
|
|
946 ;;; This is not modular. Instead, call comint-mode, and let *it* create the
|
|
|
947 ;;; necessary comint-specific local variables. Then create the
|
|
|
948 ;;; foo-mode-specific local variables in foo-mode. Set the buffer's keymap to
|
|
|
949 ;;; be foo-mode-map, and it's mode to be foo-mode. Set the comint-mode hooks
|
|
|
950 ;;; (comint-prompt-regexp, comint-input-filter, comint-input-sentinel,
|
|
|
951 ;;; comint-get-old-input) that need to be different from the defaults. Call
|
|
|
952 ;;; foo-mode-hook, and you're done. Don't run the comint-mode hook yourself;
|
|
|
953 ;;; comint-mode will take care of it. The following example, from cmushell.el,
|
|
|
954 ;;; is typical:
|
|
|
955 ;;;
|
|
|
956 ;;; (defun shell-mode ()
|
|
|
957 ;;; (interactive)
|
|
|
958 ;;; (comint-mode)
|
|
|
959 ;;; (setq comint-prompt-regexp shell-prompt-pattern)
|
|
|
960 ;;; (setq major-mode 'shell-mode)
|
|
|
961 ;;; (setq mode-name "Shell")
|
|
|
962 ;;; (cond ((not shell-mode-map)
|
|
|
963 ;;; (setq shell-mode-map (full-copy-sparse-keymap comint-mode-map))
|
|
|
964 ;;; (define-key shell-mode-map "\M-\t" 'comint-dynamic-complete)
|
|
|
965 ;;; (define-key shell-mode-map "\M-?"
|
|
|
966 ;;; 'comint-dynamic-list-completions)))
|
|
|
967 ;;; (use-local-map shell-mode-map)
|
|
|
968 ;;; (make-local-variable 'shell-directory-stack)
|
|
|
969 ;;; (setq shell-directory-stack nil)
|
|
|
970 ;;; (setq comint-input-sentinel 'shell-directory-tracker)
|
|
|
971 ;;; (run-hooks 'shell-mode-hook))
|
|
|
972 ;;;
|
|
|
973 ;;;
|
|
|
974 ;;; Note that make-comint is different from make-shell in that it
|
|
|
975 ;;; doesn't have a default program argument. If you give make-shell
|
|
|
976 ;;; a program name of NIL, it cleverly chooses one of explicit-shell-name,
|
|
|
977 ;;; $ESHELL, $SHELL, or /bin/sh. If you give make-comint a program argument
|
|
|
978 ;;; of NIL, it barfs. Adjust your code accordingly...
|
|
|
979 ;;;
|
|
|
980
|
|
|
981 ;;; Do the user's customisation...
|
|
|
982
|
|
|
983 (defvar comint-load-hook nil
|
|
|
984 "This hook is run when comint is loaded in.
|
|
|
985 This is a good place to put keybindings.")
|
|
|
986
|
|
|
987 (run-hooks 'comint-load-hook)
|
