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2
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1 ;;; sh-script.el --- shell-script editing commands for Emacs
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2
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3 ;; Copyright (C) 1993, 1994, 1995, 1996 by Free Software Foundation, Inc.
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4
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5 ;; Author: Daniel.Pfeiffer@Informatik.START.dbp.de, fax (+49 69) 7588-2389
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6 ;; Version: 2.0e
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7 ;; Maintainer: FSF
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8 ;; Keywords: languages, unix
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9
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10 ;; This file is part of XEmacs.
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11
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12 ;; XEmacs is free software; you can redistribute it and/or modify it
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13 ;; under the terms of the GNU General Public License as published by
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14 ;; the Free Software Foundation; either version 2, or (at your option)
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15 ;; any later version.
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16
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17 ;; XEmacs is distributed in the hope that it will be useful, but
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18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
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19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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20 ;; General Public License for more details.
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21
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22 ;; You should have received a copy of the GNU General Public License
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23 ;; along with XEmacs; see the file COPYING. If not, write to the Free
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24 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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25 ;; 02111-1307, USA.
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26
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27 ;;; Synched up with: FSF 19.34.
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28
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29 ;;; Commentary:
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30
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31 ;; Major mode for editing shell scripts. Bourne, C and rc shells as well
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32 ;; as various derivatives are supported and easily derived from. Structured
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33 ;; statements can be inserted with one command or abbrev. Completion is
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34 ;; available for filenames, variables known from the script, the shell and
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35 ;; the environment as well as commands.
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36
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37 ;;; Known Bugs:
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38
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39 ;; - In Bourne the keyword `in' is not anchored to case, for, select ...
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40 ;; - Variables in `"' strings aren't fontified because there's no way of
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41 ;; syntactically distinguishing those from `'' strings.
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42
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43 ;;; Code:
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44
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45 ;; page 1: variables and settings
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46 ;; page 2: mode-command and utility functions
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47 ;; page 3: statement syntax-commands for various shells
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48 ;; page 4: various other commands
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49
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50 (require 'executable)
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51
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98
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52 ;;; interpreter-mode-alist is not compatible between Emacs and XEmacs.
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53 ;;; So fake it.
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54
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55 (defvar sh-interpreter-mode-alist
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56 '(("perl" . perl-mode)
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57 ("perl5" . perl-mode)
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58 ("wish" . tcl-mode)
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59 ("wishx" . tcl-mode)
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60 ("tcl" . tcl-mode)
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61 ("tclsh" . tcl-mode)
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62 ("awk" . awk-mode)
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63 ("mawk" . awk-mode)
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64 ("nawk" . awk-mode)
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65 ("gawk" . awk-mode)
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66 ("scm" . scheme-mode)
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67 ("ash" . sh-mode)
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68 ("bash" . sh-mode)
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69 ("csh" . sh-mode)
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70 ("dtksh" . sh-mode)
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71 ("es" . sh-mode)
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72 ("itcsh" . sh-mode)
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73 ("jsh" . sh-mode)
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74 ("ksh" . sh-mode)
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75 ("oash" . sh-mode)
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76 ("pdksh" . sh-mode)
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77 ("rc" . sh-mode)
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78 ("sh" . sh-mode)
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79 ("sh5" . sh-mode)
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80 ("tcsh" . sh-mode)
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81 ("wksh" . sh-mode)
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82 ("wsh" . sh-mode)
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83 ("zsh" . sh-mode)
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84 ("tail" . text-mode)
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85 ("more" . text-mode)
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86 ("less" . text-mode)
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87 ("pg" . text-mode))
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88 "Alist mapping interpreter names to major modes.
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89 This alist applies to files whose first line starts with `#!'.
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90 Each element looks like (INTERPRETER . MODE).
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91 The car of each element is compared with
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92 the name of the interpreter specified in the first line.
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93 If it matches, mode MODE is selected.")
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94
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2
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95 (defvar sh-ancestor-alist
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96 '((ash . sh)
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97 (bash . jsh)
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98 (dtksh . ksh)
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99 (es . rc)
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100 (itcsh . tcsh)
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101 (jcsh . csh)
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102 (jsh . sh)
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103 (ksh . ksh88)
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104 (ksh88 . jsh)
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105 (oash . sh)
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106 (pdksh . ksh88)
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107 (posix . sh)
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108 (tcsh . csh)
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109 (wksh . ksh88)
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110 (wsh . sh)
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111 (zsh . ksh88))
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112 "*Alist showing the direct ancestor of various shells.
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113 This is the basis for `sh-feature'. See also `sh-alias-alist'.
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114 By default we have the following three hierarchies:
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115
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116 csh C Shell
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117 jcsh C Shell with Job Control
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118 tcsh Toronto C Shell
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119 itcsh ? Toronto C Shell
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120 rc Plan 9 Shell
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121 es Extensible Shell
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122 sh Bourne Shell
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123 ash ? Shell
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124 jsh Bourne Shell with Job Control
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125 bash GNU Bourne Again Shell
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126 ksh88 Korn Shell '88
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127 ksh Korn Shell '93
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128 dtksh CDE Desktop Korn Shell
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129 pdksh Public Domain Korn Shell
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130 wksh Window Korn Shell
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131 zsh Z Shell
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132 oash SCO OA (curses) Shell
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133 posix IEEE 1003.2 Shell Standard
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134 wsh ? Shell")
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135
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136
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137 (defvar sh-alias-alist
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138 ;; XEmacs: Linux is spelled `linux'
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139 (nconc (if (eq system-type 'linux)
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140 '((csh . tcsh)
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141 (ksh . pdksh)))
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142 ;; for the time being
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143 '((ksh . ksh88)
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144 (sh5 . sh)))
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145 "*Alist for transforming shell names to what they really are.
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146 Use this where the name of the executable doesn't correspond to the type of
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147 shell it really is.")
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148
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149
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150 (defvar sh-shell-file (or (getenv "SHELL") "/bin/sh")
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151 "*The executable file name for the shell being programmed.")
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152
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153
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154 (defvar sh-shell-arg
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155 ;; bash does not need any options when run in a shell script,
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156 '((bash)
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157 (csh . "-f")
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158 (pdksh)
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159 ;; Bill_Mann@praxisint.com says -p with ksh can do harm.
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160 (ksh88)
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161 ;; -p means don't initialize functions from the environment.
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162 (rc . "-p")
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163 ;; Someone proposed -motif, but we don't want to encourage
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164 ;; use of a non-free widget set.
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165 (wksh)
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166 ;; -f means don't run .zshrc.
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167 (zsh . "-f"))
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168 "*Single argument string for the magic number. See `sh-feature'.")
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169
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170 (defvar sh-shell-variables nil
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171 "Alist of shell variable names that should be included in completion.
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172 These are used for completion in addition to all the variables named
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173 in `process-environment'. Each element looks like (VAR . VAR), where
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174 the car and cdr are the same symbol.")
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175
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176 (defvar sh-shell-variables-initialized nil
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177 "Non-nil if `sh-shell-variables' is initialized.")
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178
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179 (defun sh-canonicalize-shell (shell)
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180 "Convert a shell name SHELL to the one we should handle it as."
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181 (or (symbolp shell)
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182 (setq shell (intern shell)))
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183 (or (cdr (assq shell sh-alias-alist))
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184 shell))
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185
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186 (defvar sh-shell (sh-canonicalize-shell (file-name-nondirectory sh-shell-file))
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187 "The shell being programmed. This is set by \\[sh-set-shell].")
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188
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189 ;;; I turned off this feature because it doesn't permit typing commands
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190 ;;; in the usual way without help.
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191 ;;;(defvar sh-abbrevs
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192 ;;; '((csh eval sh-abbrevs shell
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193 ;;; "switch" 'sh-case
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194 ;;; "getopts" 'sh-while-getopts)
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195
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196 ;;; (es eval sh-abbrevs shell
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197 ;;; "function" 'sh-function)
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198
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199 ;;; (ksh88 eval sh-abbrevs sh
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200 ;;; "select" 'sh-select)
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201
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202 ;;; (rc eval sh-abbrevs shell
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203 ;;; "case" 'sh-case
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204 ;;; "function" 'sh-function)
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205
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206 ;;; (sh eval sh-abbrevs shell
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207 ;;; "case" 'sh-case
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208 ;;; "function" 'sh-function
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209 ;;; "until" 'sh-until
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210 ;;; "getopts" 'sh-while-getopts)
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211
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212 ;;; ;; The next entry is only used for defining the others
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213 ;;; (shell "for" sh-for
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214 ;;; "loop" sh-indexed-loop
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215 ;;; "if" sh-if
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216 ;;; "tmpfile" sh-tmp-file
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217 ;;; "while" sh-while)
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218
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219 ;;; (zsh eval sh-abbrevs ksh88
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220 ;;; "repeat" 'sh-repeat))
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221 ;;; "Abbrev-table used in Shell-Script mode. See `sh-feature'.
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222 ;;;Due to the internal workings of abbrev tables, the shell name symbol is
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223 ;;;actually defined as the table for the like of \\[edit-abbrevs].")
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224
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225
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226
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227 (defvar sh-mode-syntax-table
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228 '((csh eval identity sh)
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229 (sh eval sh-mode-syntax-table ()
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230 ;; #'s meanings depend on context which can't be expressed here
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231 ;; ?\# "<"
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232 ;; ?\^l ">#"
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233 ;; ?\n ">#"
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234 ?\" "\"\""
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235 ?\' "\"'"
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236 ?\` ".`"
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237 ?$ "_"
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238 ?! "_"
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239 ?% "_"
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240 ?: "_"
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241 ?. "_"
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242 ?^ "_"
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243 ?~ "_")
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244 (rc eval sh-mode-syntax-table sh
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245 ?\" "_"
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246 ?\` "."))
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247 "Syntax-table used in Shell-Script mode. See `sh-feature'.")
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248
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249
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250
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251 (defvar sh-mode-map
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252 (let ((map (make-sparse-keymap))
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253 (menu-map (make-sparse-keymap "Insert")))
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254 (define-key map "\C-c(" 'sh-function)
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255 (define-key map "\C-c\C-w" 'sh-while)
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256 (define-key map "\C-c\C-u" 'sh-until)
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257 (define-key map "\C-c\C-t" 'sh-tmp-file)
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258 (define-key map "\C-c\C-s" 'sh-select)
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259 (define-key map "\C-c\C-r" 'sh-repeat)
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260 (define-key map "\C-c\C-o" 'sh-while-getopts)
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261 (define-key map "\C-c\C-l" 'sh-indexed-loop)
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262 (define-key map "\C-c\C-i" 'sh-if)
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263 (define-key map "\C-c\C-f" 'sh-for)
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264 (define-key map "\C-c\C-c" 'sh-case)
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265
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266 (define-key map "=" 'sh-assignment)
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267 (define-key map "\C-c+" 'sh-add)
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268 (define-key map "\C-\M-x" 'sh-execute-region)
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269 (define-key map "\C-c\C-x" 'executable-interpret)
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270 (define-key map "<" 'sh-maybe-here-document)
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271 (define-key map "(" 'skeleton-pair-insert-maybe)
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272 (define-key map "{" 'skeleton-pair-insert-maybe)
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273 (define-key map "[" 'skeleton-pair-insert-maybe)
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274 (define-key map "'" 'skeleton-pair-insert-maybe)
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275 (define-key map "`" 'skeleton-pair-insert-maybe)
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276 (define-key map "\"" 'skeleton-pair-insert-maybe)
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277
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278 (define-key map "\t" 'sh-indent-line)
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279 (substitute-key-definition 'complete-tag 'comint-dynamic-complete
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280 map (current-global-map))
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281 (substitute-key-definition 'newline-and-indent 'sh-newline-and-indent
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282 map (current-global-map))
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283 (substitute-key-definition 'delete-backward-char
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284 'backward-delete-char-untabify
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285 map (current-global-map))
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286 (define-key map "\C-c:" 'sh-set-shell)
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287 (substitute-key-definition 'beginning-of-defun
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288 'sh-beginning-of-compound-command
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289 map (current-global-map))
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290 (substitute-key-definition 'backward-sentence 'sh-beginning-of-command
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291 map (current-global-map))
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292 (substitute-key-definition 'forward-sentence 'sh-end-of-command
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293 map (current-global-map))
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294 (define-key map [menu-bar insert] (cons "Insert" menu-map))
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295 (define-key menu-map [sh-while] '("While Loop" . sh-while))
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296 (define-key menu-map [sh-until] '("Until Loop" . sh-until))
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297 (define-key menu-map [sh-tmp-file] '("Temporary File" . sh-tmp-file))
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298 (define-key menu-map [sh-select] '("Select Statement" . sh-select))
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299 (define-key menu-map [sh-repeat] '("Repeat Loop" . sh-repeat))
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300 (define-key menu-map [sh-while-getopts]
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301 '("Options Loop" . sh-while-getopts))
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302 (define-key menu-map [sh-indexed-loop]
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303 '("Indexed Loop" . sh-indexed-loop))
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304 (define-key menu-map [sh-if] '("If Statement" . sh-if))
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305 (define-key menu-map [sh-for] '("For Loop" . sh-for))
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306 (define-key menu-map [sh-case] '("Case Statement" . sh-case))
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307 map)
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308 "Keymap used in Shell-Script mode.")
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309
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310
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311
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312 (defvar sh-dynamic-complete-functions
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313 '(shell-dynamic-complete-environment-variable
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314 shell-dynamic-complete-command
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315 comint-dynamic-complete-filename)
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316 "*Functions for doing TAB dynamic completion.")
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317
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318
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319 (defvar sh-require-final-newline
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320 '((csh . t)
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321 (pdksh . t)
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322 (rc eval . require-final-newline)
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323 (sh eval . require-final-newline))
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324 "*Value of `require-final-newline' in Shell-Script mode buffers.
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325 See `sh-feature'.")
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326
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327
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328 (defvar sh-comment-prefix
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329 '((csh . "\\(^\\|[^$]\\|\\$[^{]\\)")
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330 (rc eval identity csh)
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331 (sh . "\\(^\\|[ \t|&;()]\\)"))
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332 "*Regexp matching what may come before a comment `#'.
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333 This must contain one \\(grouping\\) since it is the basis for fontifying
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334 comments as well as for `comment-start-skip'.
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335 See `sh-feature'.")
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336
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337
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338 (defvar sh-assignment-regexp
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339 '((csh . "\\<\\([a-zA-Z0-9_]+\\)\\(\\[.+\\]\\)?[ \t]*[-+*/%^]?=")
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340 ;; actually spaces are only supported in let/(( ... ))
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341 (ksh88 . "\\<\\([a-zA-Z0-9_]+\\)\\(\\[.+\\]\\)?[ \t]*\\([-+*/%&|~^]\\|<<\\|>>\\)?=")
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342 (rc . "\\<\\([a-zA-Z0-9_*]+\\)[ \t]*=")
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343 (sh . "\\<\\([a-zA-Z0-9_]+\\)="))
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344 "*Regexp for the variable name and what may follow in an assignment.
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345 First grouping matches the variable name. This is upto and including the `='
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346 sign. See `sh-feature'.")
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347
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348
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349 (defvar sh-indentation 4
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350 "The width for further indentation in Shell-Script mode.")
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351
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352
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353 (defvar sh-remember-variable-min 3
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354 "*Don't remember variables less than this length for completing reads.")
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355
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356
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357 (defvar sh-header-marker nil
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358 "When non-`nil' is the end of header for prepending by \\[sh-execute-region].
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359 That command is also used for setting this variable.")
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360
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361
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362 (defvar sh-beginning-of-command
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363 "\\([;({`|&]\\|\\`\\|[^\\]\n\\)[ \t]*\\([/~a-zA-Z0-9:]\\)"
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364 "*Regexp to determine the beginning of a shell command.
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365 The actual command starts at the beginning of the second \\(grouping\\).")
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366
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367
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368 (defvar sh-end-of-command
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369 "\\([/~a-zA-Z0-9:]\\)[ \t]*\\([;#)}`|&]\\|$\\)"
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370 "*Regexp to determine the end of a shell command.
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371 The actual command ends at the end of the first \\(grouping\\).")
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372
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373
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374
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375 (defvar sh-here-document-word "EOF"
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376 "Word to delimit here documents.")
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377
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378 (defvar sh-test
|
|
70
|
379 '((sh "[ ]" . 3)
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380 (ksh88 "[[ ]]" . 4))
|
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2
|
381 "Initial input in Bourne if, while and until skeletons. See `sh-feature'.")
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382
|
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383
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|
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384 (defvar sh-builtins
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385 '((bash eval sh-append posix
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386 "alias" "bg" "bind" "builtin" "declare" "dirs" "enable" "fc" "fg"
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|
387 "help" "history" "jobs" "kill" "let" "local" "popd" "pushd" "source"
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|
|
388 "suspend" "typeset" "unalias")
|
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|
389
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|
|
390 ;; The next entry is only used for defining the others
|
|
|
391 (bourne eval sh-append shell
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|
392 "eval" "export" "getopts" "newgrp" "pwd" "read" "readonly"
|
|
|
393 "times" "ulimit")
|
|
|
394
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|
|
395 (csh eval sh-append shell
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|
396 "alias" "chdir" "glob" "history" "limit" "nice" "nohup" "rehash"
|
|
|
397 "setenv" "source" "time" "unalias" "unhash")
|
|
|
398
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|
|
399 (dtksh eval identity wksh)
|
|
|
400
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|
|
401 (es "access" "apids" "cd" "echo" "eval" "false" "let" "limit" "local"
|
|
|
402 "newpgrp" "result" "time" "umask" "var" "vars" "wait" "whatis")
|
|
|
403
|
|
|
404 (jsh eval sh-append sh
|
|
|
405 "bg" "fg" "jobs" "kill" "stop" "suspend")
|
|
|
406
|
|
|
407 (jcsh eval sh-append csh
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|
|
408 "bg" "fg" "jobs" "kill" "notify" "stop" "suspend")
|
|
|
409
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|
|
410 (ksh88 eval sh-append bourne
|
|
|
411 "alias" "bg" "false" "fc" "fg" "jobs" "kill" "let" "print" "time"
|
|
|
412 "typeset" "unalias" "whence")
|
|
|
413
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|
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414 (oash eval sh-append sh
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|
415 "checkwin" "dateline" "error" "form" "menu" "newwin" "oadeinit"
|
|
|
416 "oaed" "oahelp" "oainit" "pp" "ppfile" "scan" "scrollok" "wattr"
|
|
|
417 "wclear" "werase" "win" "wmclose" "wmmessage" "wmopen" "wmove"
|
|
|
418 "wmtitle" "wrefresh")
|
|
|
419
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|
|
420 (pdksh eval sh-append ksh88
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|
421 "bind")
|
|
|
422
|
|
|
423 (posix eval sh-append sh
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|
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424 "command")
|
|
|
425
|
|
|
426 (rc "builtin" "cd" "echo" "eval" "limit" "newpgrp" "shift" "umask" "wait"
|
|
|
427 "whatis")
|
|
|
428
|
|
|
429 (sh eval sh-append bourne
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|
430 "hash" "test" "type")
|
|
|
431
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|
|
432 ;; The next entry is only used for defining the others
|
|
|
433 (shell "cd" "echo" "eval" "set" "shift" "umask" "unset" "wait")
|
|
|
434
|
|
|
435 (wksh eval sh-append ksh88
|
|
|
436 "Xt[A-Z][A-Za-z]*")
|
|
|
437
|
|
|
438 (zsh eval sh-append ksh88
|
|
|
439 "autoload" "bindkey" "builtin" "chdir" "compctl" "declare" "dirs"
|
|
|
440 "disable" "disown" "echotc" "enable" "functions" "getln" "hash"
|
|
|
441 "history" "integer" "limit" "local" "log" "popd" "pushd" "r"
|
|
|
442 "readonly" "rehash" "sched" "setopt" "source" "suspend" "true"
|
|
|
443 "ttyctl" "type" "unfunction" "unhash" "unlimit" "unsetopt" "vared"
|
|
|
444 "which"))
|
|
|
445 "*List of all shell builtins for completing read and fontification.
|
|
|
446 Note that on some systems not all builtins are available or some are
|
|
|
447 implemented as aliases. See `sh-feature'.")
|
|
|
448
|
|
|
449
|
|
|
450
|
|
|
451 (defvar sh-leading-keywords
|
|
|
452 '((csh "else")
|
|
|
453
|
|
|
454 (es "true" "unwind-protect" "whatis")
|
|
|
455
|
|
|
456 (rc "else")
|
|
|
457
|
|
|
458 (sh "do" "elif" "else" "if" "then" "trap" "type" "until" "while"))
|
|
|
459 "*List of keywords that may be immediately followed by a builtin or keyword.
|
|
|
460 Given some confusion between keywords and builtins depending on shell and
|
|
|
461 system, the distinction here has been based on whether they influence the
|
|
|
462 flow of control or syntax. See `sh-feature'.")
|
|
|
463
|
|
|
464
|
|
|
465 (defvar sh-other-keywords
|
|
|
466 '((bash eval sh-append bourne
|
|
|
467 "bye" "logout")
|
|
|
468
|
|
|
469 ;; The next entry is only used for defining the others
|
|
|
470 (bourne eval sh-append shell
|
|
|
471 "done" "esac" "fi" "for" "function" "in" "return")
|
|
|
472
|
|
|
473 (csh eval sh-append shell
|
|
|
474 "breaksw" "default" "end" "endif" "endsw" "foreach" "goto"
|
|
|
475 "if" "logout" "onintr" "repeat" "switch" "then" "while")
|
|
|
476
|
|
|
477 (es "break" "catch" "exec" "exit" "fn" "for" "forever" "fork" "if"
|
|
|
478 "return" "throw" "while")
|
|
|
479
|
|
|
480 (ksh88 eval sh-append bourne
|
|
|
481 "select")
|
|
|
482
|
|
|
483 (rc "break" "case" "exec" "exit" "fn" "for" "if" "in" "return" "switch"
|
|
|
484 "while")
|
|
|
485
|
|
|
486 ;; The next entry is only used for defining the others
|
|
|
487 (shell "break" "case" "continue" "exec" "exit")
|
|
|
488
|
|
|
489 (zsh eval sh-append bash
|
|
|
490 "select"))
|
|
|
491 "*List of keywords not in `sh-leading-keywords'.
|
|
|
492 See `sh-feature'.")
|
|
|
493
|
|
|
494
|
|
|
495
|
|
|
496 (defvar sh-variables
|
|
|
497 '((bash eval sh-append sh
|
|
|
498 "allow_null_glob_expansion" "auto_resume" "BASH" "BASH_VERSION"
|
|
|
499 "cdable_vars" "ENV" "EUID" "FCEDIT" "FIGNORE" "glob_dot_filenames"
|
|
|
500 "histchars" "HISTFILE" "HISTFILESIZE" "history_control" "HISTSIZE"
|
|
|
501 "hostname_completion_file" "HOSTTYPE" "IGNOREEOF" "ignoreeof"
|
|
|
502 "LINENO" "MAIL_WARNING" "noclobber" "nolinks" "notify"
|
|
|
503 "no_exit_on_failed_exec" "NO_PROMPT_VARS" "OLDPWD" "OPTERR" "PPID"
|
|
|
504 "PROMPT_COMMAND" "PS4" "pushd_silent" "PWD" "RANDOM" "REPLY"
|
|
|
505 "SECONDS" "SHLVL" "TMOUT" "UID")
|
|
|
506
|
|
|
507 (csh eval sh-append shell
|
|
|
508 "argv" "cdpath" "child" "echo" "histchars" "history" "home"
|
|
|
509 "ignoreeof" "mail" "noclobber" "noglob" "nonomatch" "path" "prompt"
|
|
|
510 "shell" "status" "time" "verbose")
|
|
|
511
|
|
|
512 (es eval sh-append shell
|
|
|
513 "apid" "cdpath" "CDPATH" "history" "home" "ifs" "noexport" "path"
|
|
|
514 "pid" "prompt" "signals")
|
|
|
515
|
|
|
516 (jcsh eval sh-append csh
|
|
|
517 "notify")
|
|
|
518
|
|
|
519 (ksh88 eval sh-append sh
|
|
|
520 "ENV" "ERRNO" "FCEDIT" "FPATH" "HISTFILE" "HISTSIZE" "LINENO"
|
|
|
521 "OLDPWD" "PPID" "PS3" "PS4" "PWD" "RANDOM" "REPLY" "SECONDS"
|
|
|
522 "TMOUT")
|
|
|
523
|
|
|
524 (oash eval sh-append sh
|
|
|
525 "FIELD" "FIELD_MAX" "LAST_KEY" "OALIB" "PP_ITEM" "PP_NUM")
|
|
|
526
|
|
|
527 (rc eval sh-append shell
|
|
|
528 "apid" "apids" "cdpath" "CDPATH" "history" "home" "ifs" "path" "pid"
|
|
|
529 "prompt" "status")
|
|
|
530
|
|
|
531 (sh eval sh-append shell
|
|
|
532 "CDPATH" "IFS" "OPTARG" "OPTIND" "PS1" "PS2")
|
|
|
533
|
|
|
534 ;; The next entry is only used for defining the others
|
|
|
535 (shell "COLUMNS" "EDITOR" "HOME" "HUSHLOGIN" "LANG" "LC_COLLATE"
|
|
|
536 "LC_CTYPE" "LC_MESSAGES" "LC_MONETARY" "LC_NUMERIC" "LC_TIME"
|
|
|
537 "LINES" "LOGNAME" "MAIL" "MAILCHECK" "MAILPATH" "PAGER" "PATH"
|
|
|
538 "SHELL" "TERM" "TERMCAP" "TERMINFO" "VISUAL")
|
|
|
539
|
|
|
540 (tcsh eval sh-append csh
|
|
|
541 "addsuffix" "ampm" "autocorrect" "autoexpand" "autolist"
|
|
|
542 "autologout" "chase_symlinks" "correct" "dextract" "edit" "el"
|
|
|
543 "fignore" "gid" "histlit" "HOST" "HOSTTYPE" "HPATH"
|
|
|
544 "ignore_symlinks" "listjobs" "listlinks" "listmax" "matchbeep"
|
|
|
545 "nobeep" "NOREBIND" "oid" "printexitvalue" "prompt2" "prompt3"
|
|
|
546 "pushdsilent" "pushdtohome" "recexact" "recognize_only_executables"
|
|
|
547 "rmstar" "savehist" "SHLVL" "showdots" "sl" "SYSTYPE" "tcsh" "term"
|
|
|
548 "tperiod" "tty" "uid" "version" "visiblebell" "watch" "who"
|
|
|
549 "wordchars")
|
|
|
550
|
|
|
551 (zsh eval sh-append ksh88
|
|
|
552 "BAUD" "bindcmds" "cdpath" "DIRSTACKSIZE" "fignore" "FIGNORE" "fpath"
|
|
|
553 "HISTCHARS" "hostcmds" "hosts" "HOSTS" "LISTMAX" "LITHISTSIZE"
|
|
|
554 "LOGCHECK" "mailpath" "manpath" "NULLCMD" "optcmds" "path" "POSTEDIT"
|
|
|
555 "prompt" "PROMPT" "PROMPT2" "PROMPT3" "PROMPT4" "psvar" "PSVAR"
|
|
|
556 "READNULLCMD" "REPORTTIME" "RPROMPT" "RPS1" "SAVEHIST" "SPROMPT"
|
|
|
557 "STTY" "TIMEFMT" "TMOUT" "TMPPREFIX" "varcmds" "watch" "WATCH"
|
|
|
558 "WATCHFMT" "WORDCHARS" "ZDOTDIR"))
|
|
|
559 "List of all shell variables available for completing read.
|
|
|
560 See `sh-feature'.")
|
|
|
561
|
|
|
562
|
|
|
563
|
|
|
564 (defvar sh-font-lock-keywords
|
|
|
565 '((csh eval sh-append shell
|
|
|
566 '("\\${?[#?]?\\([A-Za-z_][A-Za-z0-9_]*\\|0\\)" 1
|
|
|
567 font-lock-variable-name-face))
|
|
|
568
|
|
|
569 (es eval sh-append executable-font-lock-keywords
|
|
|
570 '("\\$#?\\([A-Za-z_][A-Za-z0-9_]*\\|[0-9]+\\)" 1
|
|
|
571 font-lock-variable-name-face))
|
|
|
572
|
|
|
573 (rc eval identity es)
|
|
|
574
|
|
|
575 (sh eval sh-append shell
|
|
|
576 '("\\$\\({#?\\)?\\([A-Za-z_][A-Za-z0-9_]*\\|[-#?@!]\\)" 2
|
|
|
577 font-lock-variable-name-face))
|
|
|
578
|
|
|
579 ;; The next entry is only used for defining the others
|
|
|
580 (shell eval sh-append executable-font-lock-keywords
|
|
|
581 '("\\\\[^A-Za-z0-9]" 0 font-lock-string-face)
|
|
|
582 '("\\${?\\([A-Za-z_][A-Za-z0-9_]*\\|[0-9]+\\|[$*_]\\)" 1
|
|
|
583 font-lock-variable-name-face)))
|
|
|
584 "*Rules for highlighting shell scripts. See `sh-feature'.")
|
|
|
585
|
|
|
586 (defvar sh-font-lock-keywords-1
|
|
|
587 '((sh "[ \t]in\\>"))
|
|
|
588 "*Additional rules for highlighting shell scripts. See `sh-feature'.")
|
|
|
589
|
|
|
590 (defvar sh-font-lock-keywords-2 ()
|
|
|
591 "*Yet more rules for highlighting shell scripts. See `sh-feature'.")
|
|
|
592
|
|
|
593 (defvar sh-font-lock-keywords-only t
|
|
|
594 "*Value of `font-lock-keywords-only' for highlighting shell scripts.
|
|
|
595 Default value is `t' because Emacs' syntax is not expressive enough to
|
|
|
596 detect that $# does not start a comment. Thus comments are fontified by
|
|
|
597 regexp which means that a single apostrophe in a comment turns everything
|
|
|
598 upto the next one or end of buffer into a string.")
|
|
|
599
|
|
|
600 ;; mode-command and utility functions
|
|
|
601
|
|
|
602 ;;;###autoload
|
|
|
603 (put 'sh-mode 'mode-class 'special)
|
|
|
604
|
|
|
605 ;;;###autoload
|
|
|
606 (defun sh-mode ()
|
|
|
607 "Major mode for editing shell scripts.
|
|
|
608 This mode works for many shells, since they all have roughly the same syntax,
|
|
|
609 as far as commands, arguments, variables, pipes, comments etc. are concerned.
|
|
|
610 Unless the file's magic number indicates the shell, your usual shell is
|
|
|
611 assumed. Since filenames rarely give a clue, they are not further analyzed.
|
|
|
612
|
|
|
613 This mode adapts to the variations between shells (see `sh-set-shell') by
|
|
|
614 means of an inheritance based feature lookup (see `sh-feature'). This
|
|
|
615 mechanism applies to all variables (including skeletons) that pertain to
|
|
|
616 shell-specific features.
|
|
|
617
|
|
|
618 The default style of this mode is that of Rosenblatt's Korn shell book.
|
|
|
619 The syntax of the statements varies with the shell being used. The
|
|
|
620 following commands are available, based on the current shell's syntax:
|
|
|
621
|
|
|
622 \\[sh-case] case statement
|
|
|
623 \\[sh-for] for loop
|
|
|
624 \\[sh-function] function definition
|
|
|
625 \\[sh-if] if statement
|
|
|
626 \\[sh-indexed-loop] indexed loop from 1 to n
|
|
|
627 \\[sh-while-getopts] while getopts loop
|
|
|
628 \\[sh-repeat] repeat loop
|
|
|
629 \\[sh-select] select loop
|
|
|
630 \\[sh-until] until loop
|
|
|
631 \\[sh-while] while loop
|
|
|
632
|
|
|
633 \\[backward-delete-char-untabify] Delete backward one position, even if it was a tab.
|
|
|
634 \\[sh-newline-and-indent] Delete unquoted space and indent new line same as this one.
|
|
|
635 \\[sh-end-of-command] Go to end of successive commands.
|
|
|
636 \\[sh-beginning-of-command] Go to beginning of successive commands.
|
|
|
637 \\[sh-set-shell] Set this buffer's shell, and maybe its magic number.
|
|
|
638 \\[sh-execute-region] Have optional header and region be executed in a subshell.
|
|
|
639
|
|
|
640 \\[sh-maybe-here-document] Without prefix, following an unquoted < inserts here document.
|
|
|
641 {, (, [, ', \", `
|
|
|
642 Unless quoted with \\, insert the pairs {}, (), [], or '', \"\", ``.
|
|
|
643
|
|
|
644 If you generally program a shell different from your login shell you can
|
|
|
645 set `sh-shell-file' accordingly. If your shell's file name doesn't correctly
|
|
|
646 indicate what shell it is use `sh-alias-alist' to translate.
|
|
|
647
|
|
|
648 If your shell gives error messages with line numbers, you can use \\[executable-interpret]
|
|
|
649 with your script for an edit-interpret-debug cycle."
|
|
|
650 (interactive)
|
|
|
651 (kill-all-local-variables)
|
|
|
652 (use-local-map sh-mode-map)
|
|
|
653 (make-local-variable 'indent-line-function)
|
|
|
654 (make-local-variable 'indent-region-function)
|
|
|
655 (make-local-variable 'skeleton-end-hook)
|
|
|
656 (make-local-variable 'paragraph-start)
|
|
|
657 (make-local-variable 'paragraph-separate)
|
|
|
658 (make-local-variable 'comment-start)
|
|
|
659 (make-local-variable 'comment-start-skip)
|
|
|
660 (make-local-variable 'require-final-newline)
|
|
|
661 (make-local-variable 'sh-header-marker)
|
|
|
662 (make-local-variable 'sh-shell-file)
|
|
|
663 (make-local-variable 'sh-shell)
|
|
|
664 (make-local-variable 'skeleton-pair-alist)
|
|
|
665 (make-local-variable 'skeleton-pair-filter)
|
|
|
666 (make-local-variable 'comint-dynamic-complete-functions)
|
|
|
667 (make-local-variable 'comint-prompt-regexp)
|
|
|
668 (make-local-variable 'font-lock-keywords)
|
|
|
669 (make-local-variable 'font-lock-defaults)
|
|
|
670 (make-local-variable 'skeleton-filter)
|
|
|
671 (make-local-variable 'skeleton-newline-indent-rigidly)
|
|
|
672 (make-local-variable 'sh-shell-variables)
|
|
|
673 (make-local-variable 'sh-shell-variables-initialized)
|
|
|
674 (setq major-mode 'sh-mode
|
|
|
675 mode-name "Shell-script"
|
|
|
676 indent-line-function 'sh-indent-line
|
|
|
677 ;; not very clever, but enables wrapping skeletons around regions
|
|
|
678 indent-region-function (lambda (b e)
|
|
|
679 (save-excursion
|
|
|
680 (goto-char b)
|
|
|
681 (skip-syntax-backward "-")
|
|
|
682 (setq b (point))
|
|
|
683 (goto-char e)
|
|
|
684 (skip-syntax-backward "-")
|
|
|
685 (indent-rigidly b (point) sh-indentation)))
|
|
|
686 skeleton-end-hook (lambda ()
|
|
|
687 (or (eolp) (newline) (indent-relative)))
|
|
|
688 paragraph-start (concat page-delimiter "\\|$")
|
|
|
689 paragraph-separate paragraph-start
|
|
|
690 comment-start "# "
|
|
|
691 comint-dynamic-complete-functions sh-dynamic-complete-functions
|
|
|
692 ;; we can't look if previous line ended with `\'
|
|
|
693 comint-prompt-regexp "^[ \t]*"
|
|
|
694 font-lock-defaults
|
|
|
695 `((sh-font-lock-keywords
|
|
|
696 sh-font-lock-keywords-1
|
|
|
697 sh-font-lock-keywords-2)
|
|
|
698 ,sh-font-lock-keywords-only
|
|
|
699 nil
|
|
|
700 ((?/ . "w") (?~ . "w") (?. . "w") (?- . "w") (?_ . "w")))
|
|
|
701 skeleton-pair-alist '((?` _ ?`))
|
|
|
702 skeleton-pair-filter 'sh-quoted-p
|
|
|
703 skeleton-further-elements '((< '(- (min sh-indentation
|
|
|
704 (current-column)))))
|
|
|
705 skeleton-filter 'sh-feature
|
|
|
706 skeleton-newline-indent-rigidly t)
|
|
|
707 (save-excursion
|
|
|
708 ;; parse or insert magic number for exec() and set all variables depending
|
|
|
709 ;; on the shell thus determined
|
|
|
710 (goto-char (point-min))
|
|
|
711 (and (zerop (buffer-size))
|
|
|
712 (not buffer-read-only)
|
|
|
713 (sh-set-shell sh-shell-file)))
|
|
|
714 (run-hooks 'sh-mode-hook))
|
|
|
715 ;;;###autoload
|
|
|
716 (defalias 'shell-script-mode 'sh-mode)
|
|
|
717
|
|
98
|
718 ;;; XEmacs
|
|
|
719 (put 'sh-mode 'font-lock-defaults
|
|
|
720 `((sh-font-lock-keywords
|
|
|
721 sh-font-lock-keywords-1
|
|
|
722 sh-font-lock-keywords-2)
|
|
|
723 ,sh-font-lock-keywords-only
|
|
|
724 nil
|
|
|
725 ((?/ . "w") (?~ . "w") (?. . "w") (?- . "w") (?_ . "w"))))
|
|
|
726
|
|
2
|
727
|
|
|
728 (defun sh-font-lock-keywords (&optional keywords)
|
|
|
729 "Function to get simple fontification based on `sh-font-lock-keywords'.
|
|
|
730 This adds rules for comments and assignments."
|
|
|
731 (sh-feature sh-font-lock-keywords
|
|
|
732 (lambda (list)
|
|
|
733 `((,(concat (sh-feature sh-comment-prefix) "\\(#.*\\)")
|
|
|
734 2 font-lock-comment-face t)
|
|
|
735 (,(sh-feature sh-assignment-regexp)
|
|
|
736 1 font-lock-variable-name-face)
|
|
|
737 ,@keywords
|
|
|
738 ,@list))))
|
|
|
739
|
|
|
740 (defun sh-font-lock-keywords-1 (&optional builtins)
|
|
|
741 "Function to get better fontification including keywords."
|
|
|
742 (let ((keywords (concat "\\([;(){}`|&]\\|^\\)[ \t]*\\(\\(\\("
|
|
|
743 (mapconcat 'identity
|
|
|
744 (sh-feature sh-leading-keywords)
|
|
|
745 "\\|")
|
|
|
746 "\\)[ \t]+\\)?\\("
|
|
|
747 (mapconcat 'identity
|
|
|
748 (append (sh-feature sh-leading-keywords)
|
|
|
749 (sh-feature sh-other-keywords))
|
|
|
750 "\\|")
|
|
|
751 "\\)")))
|
|
|
752 (sh-font-lock-keywords
|
|
|
753 `(,@(if builtins
|
|
|
754 `((,(concat keywords "[ \t]+\\)?\\("
|
|
|
755 (mapconcat 'identity (sh-feature sh-builtins) "\\|")
|
|
|
756 "\\)\\>")
|
|
|
757 (2 font-lock-keyword-face nil t)
|
|
|
758 (6 font-lock-function-name-face))
|
|
|
759 ,@(sh-feature sh-font-lock-keywords-2)))
|
|
|
760 (,(concat keywords "\\)\\>")
|
|
|
761 2 font-lock-keyword-face)
|
|
|
762 ,@(sh-feature sh-font-lock-keywords-1)))))
|
|
|
763
|
|
|
764 (defun sh-font-lock-keywords-2 ()
|
|
|
765 "Function to get better fontification including keywords and builtins."
|
|
|
766 (sh-font-lock-keywords-1 t))
|
|
|
767
|
|
|
768
|
|
|
769 (defun sh-set-shell (shell &optional no-query-flag insert-flag)
|
|
|
770 "Set this buffer's shell to SHELL (a string).
|
|
|
771 Makes this script executable via `executable-set-magic'.
|
|
|
772 Calls the value of `sh-set-shell-hook' if set."
|
|
|
773 (interactive (list (completing-read "Name or path of shell: "
|
|
98
|
774 ;; XEmacs change
|
|
|
775 sh-interpreter-mode-alist
|
|
2
|
776 (lambda (x) (eq (cdr x) 'sh-mode)))
|
|
|
777 (eq executable-query 'function)
|
|
|
778 t))
|
|
|
779 (setq sh-shell (intern (file-name-nondirectory shell))
|
|
|
780 sh-shell (or (cdr (assq sh-shell sh-alias-alist))
|
|
|
781 sh-shell))
|
|
|
782 (setq sh-shell-file (executable-set-magic shell (sh-feature sh-shell-arg)))
|
|
|
783 (setq require-final-newline (sh-feature sh-require-final-newline)
|
|
|
784 ;;; local-abbrev-table (sh-feature sh-abbrevs)
|
|
98
|
785 font-lock-defaults-computed nil
|
|
|
786 ;; Next two lines kill XEmacs
|
|
|
787 ;font-lock-keywords nil ; force resetting
|
|
|
788 ;font-lock-syntax-table nil
|
|
2
|
789 comment-start-skip (concat (sh-feature sh-comment-prefix) "#+[\t ]*")
|
|
|
790 mode-line-process (format "[%s]" sh-shell)
|
|
|
791 sh-shell-variables nil
|
|
|
792 sh-shell-variables-initialized nil
|
|
|
793 shell (sh-feature sh-variables))
|
|
|
794 (set-syntax-table (sh-feature sh-mode-syntax-table))
|
|
|
795 (while shell
|
|
|
796 (sh-remember-variable (car shell))
|
|
|
797 (setq shell (cdr shell)))
|
|
|
798 (and (boundp 'font-lock-mode)
|
|
|
799 font-lock-mode
|
|
98
|
800 ;; Gnu Emacs, doesn't work
|
|
2
|
801 (font-lock-mode (font-lock-mode 0)))
|
|
98
|
802 ;; (font-lock-fontify-buffer))
|
|
2
|
803 (run-hooks 'sh-set-shell-hook))
|
|
|
804
|
|
|
805
|
|
|
806
|
|
|
807 (defun sh-feature (list &optional function)
|
|
|
808 "Index ALIST by the current shell.
|
|
|
809 If ALIST isn't a list where every element is a cons, it is returned as is.
|
|
|
810 Else indexing follows an inheritance logic which works in two ways:
|
|
|
811
|
|
|
812 - Fall back on successive ancestors (see `sh-ancestor-alist') as long as
|
|
|
813 the alist contains no value for the current shell.
|
|
|
814
|
|
|
815 - If the value thus looked up is a list starting with `eval' its `cdr' is
|
|
|
816 first evaluated. If that is also a list and the first argument is a
|
|
|
817 symbol in ALIST it is not evaluated, but rather recursively looked up in
|
|
|
818 ALIST to allow the function called to define the value for one shell to be
|
|
|
819 derived from another shell. While calling the function, is the car of the
|
|
|
820 alist element is the current shell.
|
|
|
821 The value thus determined is physically replaced into the alist.
|
|
|
822
|
|
|
823 Optional FUNCTION is applied to the determined value and the result is cached
|
|
|
824 in ALIST."
|
|
|
825 (or (if (consp list)
|
|
|
826 (let ((l list))
|
|
|
827 (while (and l (consp (car l)))
|
|
|
828 (setq l (cdr l)))
|
|
|
829 (if l list)))
|
|
|
830 (if function
|
|
|
831 (cdr (assoc (setq function (cons sh-shell function)) list)))
|
|
|
832 (let ((sh-shell sh-shell)
|
|
|
833 elt val)
|
|
|
834 (while (and sh-shell
|
|
|
835 (not (setq elt (assq sh-shell list))))
|
|
|
836 (setq sh-shell (cdr (assq sh-shell sh-ancestor-alist))))
|
|
|
837 (if (and (consp (setq val (cdr elt)))
|
|
|
838 (eq (car val) 'eval))
|
|
|
839 (setcdr elt
|
|
|
840 (setq val
|
|
|
841 (eval (if (consp (setq val (cdr val)))
|
|
|
842 (let ((sh-shell (car (cdr val)))
|
|
|
843 function)
|
|
|
844 (if (assq sh-shell list)
|
|
|
845 (setcar (cdr val)
|
|
|
846 (list 'quote
|
|
|
847 (sh-feature list))))
|
|
|
848 val)
|
|
|
849 val)))))
|
|
|
850 (if function
|
|
|
851 (nconc list
|
|
|
852 (list (cons function
|
|
|
853 (setq sh-shell (car function)
|
|
|
854 val (funcall (cdr function) val))))))
|
|
|
855 val)))
|
|
|
856
|
|
|
857
|
|
|
858
|
|
|
859 ;;; I commented this out because nobody calls it -- rms.
|
|
|
860 ;;;(defun sh-abbrevs (ancestor &rest list)
|
|
|
861 ;;; "Iff it isn't, define the current shell as abbrev table and fill that.
|
|
|
862 ;;;Abbrev table will inherit all abbrevs from ANCESTOR, which is either an abbrev
|
|
|
863 ;;;table or a list of (NAME1 EXPANSION1 ...). In addition it will define abbrevs
|
|
|
864 ;;;according to the remaining arguments NAMEi EXPANSIONi ...
|
|
|
865 ;;;EXPANSION may be either a string or a skeleton command."
|
|
|
866 ;;; (or (if (boundp sh-shell)
|
|
|
867 ;;; (symbol-value sh-shell))
|
|
|
868 ;;; (progn
|
|
|
869 ;;; (if (listp ancestor)
|
|
|
870 ;;; (nconc list ancestor))
|
|
|
871 ;;; (define-abbrev-table sh-shell ())
|
|
|
872 ;;; (if (vectorp ancestor)
|
|
|
873 ;;; (mapatoms (lambda (atom)
|
|
|
874 ;;; (or (eq atom 0)
|
|
|
875 ;;; (define-abbrev (symbol-value sh-shell)
|
|
|
876 ;;; (symbol-name atom)
|
|
|
877 ;;; (symbol-value atom)
|
|
|
878 ;;; (symbol-function atom))))
|
|
|
879 ;;; ancestor))
|
|
|
880 ;;; (while list
|
|
|
881 ;;; (define-abbrev (symbol-value sh-shell)
|
|
|
882 ;;; (car list)
|
|
|
883 ;;; (if (stringp (car (cdr list)))
|
|
|
884 ;;; (car (cdr list))
|
|
|
885 ;;; "")
|
|
|
886 ;;; (if (symbolp (car (cdr list)))
|
|
|
887 ;;; (car (cdr list))))
|
|
|
888 ;;; (setq list (cdr (cdr list)))))
|
|
|
889 ;;; (symbol-value sh-shell)))
|
|
|
890
|
|
|
891
|
|
|
892 (defun sh-mode-syntax-table (table &rest list)
|
|
|
893 "Copy TABLE and set syntax for successive CHARs according to strings S."
|
|
|
894 (setq table (copy-syntax-table table))
|
|
|
895 (while list
|
|
|
896 (modify-syntax-entry (car list) (car (cdr list)) table)
|
|
|
897 (setq list (cdr (cdr list))))
|
|
|
898 table)
|
|
|
899
|
|
|
900
|
|
|
901 (defun sh-append (ancestor &rest list)
|
|
|
902 "Return list composed of first argument (a list) physically appended to rest."
|
|
|
903 (nconc list ancestor))
|
|
|
904
|
|
|
905
|
|
|
906 (defun sh-modify (skeleton &rest list)
|
|
|
907 "Modify a copy of SKELETON by replacing I1 with REPL1, I2 with REPL2 ..."
|
|
|
908 (setq skeleton (copy-sequence skeleton))
|
|
|
909 (while list
|
|
|
910 (setcar (or (nthcdr (car list) skeleton)
|
|
|
911 (error "Index %d out of bounds" (car list)))
|
|
|
912 (car (cdr list)))
|
|
|
913 (setq list (nthcdr 2 list)))
|
|
|
914 skeleton)
|
|
|
915
|
|
|
916
|
|
|
917 (defun sh-indent-line ()
|
|
|
918 "Indent as far as preceding non-empty line, then by steps of `sh-indentation'.
|
|
|
919 Lines containing only comments are considered empty."
|
|
|
920 (interactive)
|
|
|
921 (let ((previous (save-excursion
|
|
|
922 (while (and (not (bobp))
|
|
|
923 (progn
|
|
|
924 (forward-line -1)
|
|
|
925 (back-to-indentation)
|
|
|
926 (or (eolp)
|
|
|
927 (eq (following-char) ?#)))))
|
|
|
928 (current-column)))
|
|
|
929 current)
|
|
|
930 (save-excursion
|
|
|
931 (indent-to (if (eq this-command 'newline-and-indent)
|
|
|
932 previous
|
|
|
933 (if (< (current-column)
|
|
|
934 (setq current (progn (back-to-indentation)
|
|
|
935 (current-column))))
|
|
|
936 (if (eolp) previous 0)
|
|
|
937 (delete-region (point)
|
|
|
938 (progn (beginning-of-line) (point)))
|
|
|
939 (if (eolp)
|
|
|
940 (max previous (* (1+ (/ current sh-indentation))
|
|
|
941 sh-indentation))
|
|
|
942 (* (1+ (/ current sh-indentation)) sh-indentation))))))
|
|
|
943 (if (< (current-column) (current-indentation))
|
|
|
944 (skip-chars-forward " \t"))))
|
|
|
945
|
|
|
946
|
|
|
947 (defun sh-execute-region (start end &optional flag)
|
|
|
948 "Pass optional header and region to a subshell for noninteractive execution.
|
|
|
949 The working directory is that of the buffer, and only environment variables
|
|
|
950 are already set which is why you can mark a header within the script.
|
|
|
951
|
|
|
952 With a positive prefix ARG, instead of sending region, define header from
|
|
|
953 beginning of buffer to point. With a negative prefix ARG, instead of sending
|
|
|
954 region, clear header."
|
|
|
955 (interactive "r\nP")
|
|
|
956 (if flag
|
|
|
957 (setq sh-header-marker (if (> (prefix-numeric-value flag) 0)
|
|
|
958 (point-marker)))
|
|
|
959 (if sh-header-marker
|
|
|
960 (save-excursion
|
|
|
961 (let (buffer-undo-list)
|
|
|
962 (goto-char sh-header-marker)
|
|
|
963 (append-to-buffer (current-buffer) start end)
|
|
|
964 (shell-command-on-region (point-min)
|
|
|
965 (setq end (+ sh-header-marker
|
|
|
966 (- end start)))
|
|
|
967 sh-shell-file)
|
|
|
968 (delete-region sh-header-marker end)))
|
|
|
969 (shell-command-on-region start end (concat sh-shell-file " -")))))
|
|
|
970
|
|
|
971
|
|
|
972 (defun sh-remember-variable (var)
|
|
|
973 "Make VARIABLE available for future completing reads in this buffer."
|
|
|
974 (or (< (length var) sh-remember-variable-min)
|
|
|
975 (getenv var)
|
|
|
976 (assoc var sh-shell-variables)
|
|
|
977 (setq sh-shell-variables (cons (cons var var) sh-shell-variables)))
|
|
|
978 var)
|
|
|
979
|
|
|
980
|
|
|
981
|
|
|
982 (defun sh-quoted-p ()
|
|
|
983 "Is point preceded by an odd number of backslashes?"
|
|
|
984 (eq -1 (% (save-excursion (skip-chars-backward "\\\\")) 2)))
|
|
|
985
|
|
|
986 ;; statement syntax-commands for various shells
|
|
|
987
|
|
|
988 ;; You are welcome to add the syntax or even completely new statements as
|
|
|
989 ;; appropriate for your favorite shell.
|
|
|
990
|
|
|
991 (define-skeleton sh-case
|
|
|
992 "Insert a case/switch statement. See `sh-feature'."
|
|
|
993 (csh "expression: "
|
|
|
994 "switch( " str " )" \n
|
|
|
995 > "case " (read-string "pattern: ") ?: \n
|
|
|
996 > _ \n
|
|
|
997 "breaksw" \n
|
|
|
998 ( "other pattern, %s: "
|
|
|
999 < "case " str ?: \n
|
|
|
1000 > _ \n
|
|
|
1001 "breaksw" \n)
|
|
|
1002 < "default:" \n
|
|
|
1003 > _ \n
|
|
|
1004 resume:
|
|
|
1005 < < "endsw")
|
|
|
1006 (es)
|
|
|
1007 (rc "expression: "
|
|
|
1008 "switch( " str " ) {" \n
|
|
|
1009 > "case " (read-string "pattern: ") \n
|
|
|
1010 > _ \n
|
|
|
1011 ( "other pattern, %s: "
|
|
|
1012 < "case " str \n
|
|
|
1013 > _ \n)
|
|
|
1014 < "case *" \n
|
|
|
1015 > _ \n
|
|
|
1016 resume:
|
|
|
1017 < < ?})
|
|
|
1018 (sh "expression: "
|
|
|
1019 "case " str " in" \n
|
|
|
1020 > (read-string "pattern: ") ?\) \n
|
|
|
1021 > _ \n
|
|
|
1022 ";;" \n
|
|
|
1023 ( "other pattern, %s: "
|
|
|
1024 < str ?\) \n
|
|
|
1025 > _ \n
|
|
|
1026 ";;" \n)
|
|
|
1027 < "*)" \n
|
|
|
1028 > _ \n
|
|
|
1029 resume:
|
|
|
1030 < < "esac"))
|
|
|
1031 (put 'sh-case 'menu-enable '(sh-feature sh-case))
|
|
|
1032
|
|
|
1033
|
|
|
1034
|
|
|
1035 (define-skeleton sh-for
|
|
|
1036 "Insert a for loop. See `sh-feature'."
|
|
|
1037 (csh eval sh-modify sh
|
|
|
1038 1 "foreach "
|
|
|
1039 3 " ( "
|
|
|
1040 5 " )"
|
|
|
1041 15 "end")
|
|
|
1042 (es eval sh-modify rc
|
|
|
1043 3 " = ")
|
|
|
1044 (rc eval sh-modify sh
|
|
|
1045 1 "for( "
|
|
|
1046 5 " ) {"
|
|
|
1047 15 ?})
|
|
|
1048 (sh "Index variable: "
|
|
|
1049 "for " str " in " _ "; do" \n
|
|
|
1050 > _ | ?$ & (sh-remember-variable str) \n
|
|
|
1051 < "done"))
|
|
|
1052
|
|
|
1053
|
|
|
1054
|
|
|
1055 (define-skeleton sh-indexed-loop
|
|
|
1056 "Insert an indexed loop from 1 to n. See `sh-feature'."
|
|
|
1057 (bash eval identity posix)
|
|
|
1058 (csh "Index variable: "
|
|
|
1059 "@ " str " = 1" \n
|
|
|
1060 "while( $" str " <= " (read-string "upper limit: ") " )" \n
|
|
|
1061 > _ ?$ str \n
|
|
|
1062 "@ " str "++" \n
|
|
|
1063 < "end")
|
|
|
1064 (es eval sh-modify rc
|
|
|
1065 3 " =")
|
|
|
1066 (ksh88 "Index variable: "
|
|
|
1067 "integer " str "=0" \n
|
|
|
1068 "while (( ( " str " += 1 ) <= "
|
|
|
1069 (read-string "upper limit: ")
|
|
|
1070 " )); do" \n
|
|
|
1071 > _ ?$ (sh-remember-variable str) \n
|
|
|
1072 < "done")
|
|
|
1073 (posix "Index variable: "
|
|
|
1074 str "=1" \n
|
|
|
1075 "while [ $" str " -le "
|
|
|
1076 (read-string "upper limit: ")
|
|
|
1077 " ]; do" \n
|
|
|
1078 > _ ?$ str \n
|
|
|
1079 str ?= (sh-add (sh-remember-variable str) 1) \n
|
|
|
1080 < "done")
|
|
|
1081 (rc "Index variable: "
|
|
|
1082 "for( " str " in" " `{awk 'BEGIN { for( i=1; i<="
|
|
|
1083 (read-string "upper limit: ")
|
|
|
1084 "; i++ ) print i }'}) {" \n
|
|
|
1085 > _ ?$ (sh-remember-variable str) \n
|
|
|
1086 < ?})
|
|
|
1087 (sh "Index variable: "
|
|
|
1088 "for " str " in `awk 'BEGIN { for( i=1; i<="
|
|
|
1089 (read-string "upper limit: ")
|
|
|
1090 "; i++ ) print i }'`; do" \n
|
|
|
1091 > _ ?$ (sh-remember-variable str) \n
|
|
|
1092 < "done"))
|
|
|
1093
|
|
|
1094
|
|
|
1095 (defun sh-shell-initialize-variables ()
|
|
|
1096 "Scan the buffer for variable assignments.
|
|
|
1097 Add these variables to `sh-shell-variables'."
|
|
|
1098 (message "Scanning buffer `%s' for variable assignments..." (buffer-name))
|
|
|
1099 (save-excursion
|
|
|
1100 (goto-char (point-min))
|
|
|
1101 (setq sh-shell-variables-initialized t)
|
|
|
1102 (while (search-forward "=" nil t)
|
|
|
1103 (sh-assignment 0)))
|
|
|
1104 (message "Scanning buffer `%s' for variable assignments...done"
|
|
|
1105 (buffer-name)))
|
|
|
1106
|
|
|
1107 (defvar sh-add-buffer)
|
|
|
1108
|
|
|
1109 (defun sh-add-completer (string predicate code)
|
|
|
1110 "Do completion using `sh-shell-variables', but initialize it first.
|
|
|
1111 This function is designed for use as the \"completion table\",
|
|
|
1112 so it takes three arguments:
|
|
|
1113 STRING, the current buffer contents;
|
|
|
1114 PREDICATE, the predicate for filtering possible matches;
|
|
|
1115 CODE, which says what kind of things to do.
|
|
|
1116 CODE can be nil, t or `lambda'.
|
|
|
1117 nil means to return the best completion of STRING, or nil if there is none.
|
|
|
1118 t means to return a list of all possible completions of STRING.
|
|
|
1119 `lambda' means to return t if STRING is a valid completion as it stands."
|
|
|
1120 (let ((sh-shell-variables
|
|
|
1121 (save-excursion
|
|
|
1122 (set-buffer sh-add-buffer)
|
|
|
1123 (or sh-shell-variables-initialized
|
|
|
1124 (sh-shell-initialize-variables))
|
|
|
1125 (nconc (mapcar (lambda (var)
|
|
|
1126 (let ((name
|
|
|
1127 (substring var 0 (string-match "=" var))))
|
|
|
1128 (cons name name)))
|
|
|
1129 process-environment)
|
|
|
1130 sh-shell-variables))))
|
|
|
1131 (cond ((null code)
|
|
|
1132 (try-completion string sh-shell-variables predicate))
|
|
|
1133 ((eq code t)
|
|
|
1134 (all-completions string sh-shell-variables predicate))
|
|
|
1135 ((eq code 'lambda)
|
|
|
1136 (assoc string sh-shell-variables)))))
|
|
|
1137
|
|
|
1138 (defun sh-add (var delta)
|
|
|
1139 "Insert an addition of VAR and prefix DELTA for Bourne (type) shell."
|
|
|
1140 (interactive
|
|
|
1141 (let ((sh-add-buffer (current-buffer)))
|
|
|
1142 (list (completing-read "Variable: " 'sh-add-completer)
|
|
|
1143 (prefix-numeric-value current-prefix-arg))))
|
|
|
1144 (insert (sh-feature '((bash . "$[ ")
|
|
|
1145 (ksh88 . "$(( ")
|
|
|
1146 (posix . "$(( ")
|
|
|
1147 (rc . "`{expr $")
|
|
|
1148 (sh . "`expr $")
|
|
|
1149 (zsh . "$[ ")))
|
|
|
1150 (sh-remember-variable var)
|
|
|
1151 (if (< delta 0) " - " " + ")
|
|
|
1152 (number-to-string (abs delta))
|
|
|
1153 (sh-feature '((bash . " ]")
|
|
|
1154 (ksh88 . " ))")
|
|
|
1155 (posix . " ))")
|
|
|
1156 (rc . "}")
|
|
|
1157 (sh . "`")
|
|
|
1158 (zsh . " ]")))))
|
|
|
1159
|
|
|
1160
|
|
|
1161
|
|
|
1162 (define-skeleton sh-function
|
|
|
1163 "Insert a function definition. See `sh-feature'."
|
|
|
1164 (bash eval sh-modify ksh88
|
|
|
1165 3 "() {")
|
|
|
1166 (ksh88 "name: "
|
|
|
1167 "function " str " {" \n
|
|
|
1168 > _ \n
|
|
|
1169 < "}")
|
|
|
1170 (rc eval sh-modify ksh88
|
|
|
1171 1 "fn ")
|
|
|
1172 (sh ()
|
|
|
1173 "() {" \n
|
|
|
1174 > _ \n
|
|
|
1175 < "}"))
|
|
|
1176
|
|
|
1177
|
|
|
1178
|
|
|
1179 (define-skeleton sh-if
|
|
|
1180 "Insert an if statement. See `sh-feature'."
|
|
|
1181 (csh "condition: "
|
|
|
1182 "if( " str " ) then" \n
|
|
|
1183 > _ \n
|
|
|
1184 ( "other condition, %s: "
|
|
|
1185 < "else if( " str " ) then" \n
|
|
|
1186 > _ \n)
|
|
|
1187 < "else" \n
|
|
|
1188 > _ \n
|
|
|
1189 resume:
|
|
|
1190 < "endif")
|
|
|
1191 (es "condition: "
|
|
|
1192 "if { " str " } {" \n
|
|
|
1193 > _ \n
|
|
|
1194 ( "other condition, %s: "
|
|
|
1195 < "} { " str " } {" \n
|
|
|
1196 > _ \n)
|
|
|
1197 < "} {" \n
|
|
|
1198 > _ \n
|
|
|
1199 resume:
|
|
|
1200 < ?})
|
|
|
1201 (rc eval sh-modify csh
|
|
|
1202 3 " ) {"
|
|
|
1203 8 '( "other condition, %s: "
|
|
|
1204 < "} else if( " str " ) {" \n
|
|
|
1205 > _ \n)
|
|
|
1206 10 "} else {"
|
|
|
1207 17 ?})
|
|
|
1208 (sh "condition: "
|
|
|
1209 '(setq input (sh-feature sh-test))
|
|
|
1210 "if " str "; then" \n
|
|
|
1211 > _ \n
|
|
|
1212 ( "other condition, %s: "
|
|
|
1213 < "elif " str "; then" \n
|
|
|
1214 > _ \n)
|
|
|
1215 < "else" \n
|
|
|
1216 > _ \n
|
|
|
1217 resume:
|
|
|
1218 < "fi"))
|
|
|
1219
|
|
|
1220
|
|
|
1221
|
|
|
1222 (define-skeleton sh-repeat
|
|
|
1223 "Insert a repeat loop definition. See `sh-feature'."
|
|
|
1224 (es nil
|
|
|
1225 "forever {" \n
|
|
|
1226 > _ \n
|
|
|
1227 < ?})
|
|
|
1228 (zsh "factor: "
|
|
|
1229 "repeat " str "; do"\n
|
|
|
1230 > _ \n
|
|
|
1231 < "done"))
|
|
|
1232 (put 'sh-repeat 'menu-enable '(sh-feature sh-repeat))
|
|
|
1233
|
|
|
1234
|
|
|
1235
|
|
|
1236 (define-skeleton sh-select
|
|
|
1237 "Insert a select statement. See `sh-feature'."
|
|
|
1238 (ksh88 "Index variable: "
|
|
|
1239 "select " str " in " _ "; do" \n
|
|
|
1240 > ?$ str \n
|
|
|
1241 < "done"))
|
|
|
1242 (put 'sh-select 'menu-enable '(sh-feature sh-select))
|
|
|
1243
|
|
|
1244
|
|
|
1245
|
|
|
1246 (define-skeleton sh-tmp-file
|
|
|
1247 "Insert code to setup temporary file handling. See `sh-feature'."
|
|
|
1248 (bash eval identity ksh88)
|
|
|
1249 (csh (file-name-nondirectory (buffer-file-name))
|
|
|
1250 "set tmp = /tmp/" str ".$$" \n
|
|
|
1251 "onintr exit" \n _
|
|
|
1252 (and (goto-char (point-max))
|
|
|
1253 (not (bolp))
|
|
|
1254 ?\n)
|
|
|
1255 "exit:\n"
|
|
|
1256 "rm $tmp* >&/dev/null" >)
|
|
|
1257 (es (file-name-nondirectory (buffer-file-name))
|
|
|
1258 "local( signals = $signals sighup sigint; tmp = /tmp/" str ".$pid ) {" \n
|
|
|
1259 > "catch @ e {" \n
|
|
|
1260 > "rm $tmp^* >[2]/dev/null" \n
|
|
|
1261 "throw $e" \n
|
|
|
1262 < "} {" \n
|
|
|
1263 > _ \n
|
|
|
1264 < ?} \n
|
|
|
1265 < ?})
|
|
|
1266 (ksh88 eval sh-modify sh
|
|
|
1267 6 "EXIT")
|
|
|
1268 (rc (file-name-nondirectory (buffer-file-name))
|
|
|
1269 "tmp = /tmp/" str ".$pid" \n
|
|
|
1270 "fn sigexit { rm $tmp^* >[2]/dev/null }")
|
|
|
1271 (sh (file-name-nondirectory (buffer-file-name))
|
|
|
1272 "TMP=/tmp/" str ".$$" \n
|
|
|
1273 "trap \"rm $TMP* 2>/dev/null\" " ?0))
|
|
|
1274
|
|
|
1275
|
|
|
1276
|
|
|
1277 (define-skeleton sh-until
|
|
|
1278 "Insert an until loop. See `sh-feature'."
|
|
|
1279 (sh "condition: "
|
|
|
1280 '(setq input (sh-feature sh-test))
|
|
|
1281 "until " str "; do" \n
|
|
|
1282 > _ \n
|
|
|
1283 < "done"))
|
|
|
1284 (put 'sh-until 'menu-enable '(sh-feature sh-until))
|
|
|
1285
|
|
|
1286
|
|
|
1287
|
|
|
1288 (define-skeleton sh-while
|
|
|
1289 "Insert a while loop. See `sh-feature'."
|
|
|
1290 (csh eval sh-modify sh
|
|
|
1291 2 "while( "
|
|
|
1292 4 " )"
|
|
|
1293 10 "end")
|
|
|
1294 (es eval sh-modify rc
|
|
|
1295 2 "while { "
|
|
|
1296 4 " } {")
|
|
|
1297 (rc eval sh-modify csh
|
|
|
1298 4 " ) {"
|
|
|
1299 10 ?})
|
|
|
1300 (sh "condition: "
|
|
|
1301 '(setq input (sh-feature sh-test))
|
|
|
1302 "while " str "; do" \n
|
|
|
1303 > _ \n
|
|
|
1304 < "done"))
|
|
|
1305
|
|
|
1306
|
|
|
1307
|
|
|
1308 (define-skeleton sh-while-getopts
|
|
|
1309 "Insert a while getopts loop. See `sh-feature'.
|
|
|
1310 Prompts for an options string which consists of letters for each recognized
|
|
|
1311 option followed by a colon `:' if the option accepts an argument."
|
|
|
1312 (bash eval sh-modify sh
|
|
|
1313 18 "${0##*/}")
|
|
|
1314 (csh nil
|
|
|
1315 "while( 1 )" \n
|
|
|
1316 > "switch( \"$1\" )" \n
|
|
|
1317 '(setq input '("- x" . 2))
|
|
|
1318 > >
|
|
|
1319 ( "option, %s: "
|
|
|
1320 < "case " '(eval str)
|
|
|
1321 '(if (string-match " +" str)
|
|
|
1322 (setq v1 (substring str (match-end 0))
|
|
|
1323 str (substring str 0 (match-beginning 0)))
|
|
|
1324 (setq v1 nil))
|
|
|
1325 str ?: \n
|
|
|
1326 > "set " v1 & " = $2" | -4 & _ \n
|
|
|
1327 (if v1 "shift") & \n
|
|
|
1328 "breaksw" \n)
|
|
|
1329 < "case --:" \n
|
|
|
1330 > "shift" \n
|
|
|
1331 < "default:" \n
|
|
|
1332 > "break" \n
|
|
|
1333 resume:
|
|
|
1334 < < "endsw" \n
|
|
|
1335 "shift" \n
|
|
|
1336 < "end")
|
|
|
1337 (ksh88 eval sh-modify sh
|
|
|
1338 16 "print"
|
|
|
1339 18 "${0##*/}"
|
|
|
1340 36 "OPTIND-1")
|
|
|
1341 (posix eval sh-modify sh
|
|
|
1342 18 "$(basename $0)")
|
|
|
1343 (sh "optstring: "
|
|
|
1344 "while getopts :" str " OPT; do" \n
|
|
|
1345 > "case $OPT in" \n
|
|
|
1346 > >
|
|
|
1347 '(setq v1 (append (vconcat str) nil))
|
|
|
1348 ( (prog1 (if v1 (char-to-string (car v1)))
|
|
|
1349 (if (eq (nth 1 v1) ?:)
|
|
|
1350 (setq v1 (nthcdr 2 v1)
|
|
|
1351 v2 "\"$OPTARG\"")
|
|
|
1352 (setq v1 (cdr v1)
|
|
|
1353 v2 nil)))
|
|
|
1354 < str "|+" str ?\) \n
|
|
|
1355 > _ v2 \n
|
|
|
1356 ";;" \n)
|
|
|
1357 < "*)" \n
|
|
|
1358 > "echo" " \"usage: " "`basename $0`"
|
|
|
1359 " [+-" '(setq v1 (point)) str
|
|
|
1360 '(save-excursion
|
|
|
1361 (while (search-backward ":" v1 t)
|
|
|
1362 (replace-match " ARG] [+-" t t)))
|
|
|
1363 (if (eq (preceding-char) ?-) -5)
|
|
|
1364 "] [--] ARGS...\"" \n
|
|
|
1365 "exit 2" \n
|
|
|
1366 < < "esac" \n
|
|
|
1367 < "done" \n
|
|
|
1368 "shift " (sh-add "OPTIND" -1)))
|
|
|
1369 (put 'sh-while-getopts 'menu-enable '(sh-feature sh-while-getopts))
|
|
|
1370
|
|
|
1371
|
|
|
1372
|
|
|
1373 (defun sh-assignment (arg)
|
|
|
1374 "Remember preceding identifier for future completion and do self-insert."
|
|
|
1375 (interactive "p")
|
|
|
1376 (self-insert-command arg)
|
|
|
1377 (if (<= arg 1)
|
|
|
1378 (sh-remember-variable
|
|
|
1379 (save-excursion
|
|
|
1380 (if (re-search-forward (sh-feature sh-assignment-regexp)
|
|
|
1381 (prog1 (point)
|
|
|
1382 (beginning-of-line 1))
|
|
|
1383 t)
|
|
|
1384 (match-string 1))))))
|
|
|
1385
|
|
|
1386
|
|
|
1387
|
|
|
1388 (defun sh-maybe-here-document (arg)
|
|
|
1389 "Inserts self. Without prefix, following unquoted `<' inserts here document.
|
|
|
1390 The document is bounded by `sh-here-document-word'."
|
|
|
1391 (interactive "*P")
|
|
|
1392 (self-insert-command (prefix-numeric-value arg))
|
|
|
1393 (or arg
|
|
|
1394 (not (eq (char-after (- (point) 2)) last-command-char))
|
|
|
1395 (save-excursion
|
|
|
1396 (backward-char 2)
|
|
|
1397 (sh-quoted-p))
|
|
|
1398 (progn
|
|
|
1399 (insert sh-here-document-word)
|
|
|
1400 (or (eolp) (looking-at "[ \t]") (insert ? ))
|
|
|
1401 (end-of-line 1)
|
|
|
1402 (while
|
|
|
1403 (sh-quoted-p)
|
|
|
1404 (end-of-line 2))
|
|
|
1405 (newline)
|
|
|
1406 (save-excursion (insert ?\n sh-here-document-word)))))
|
|
|
1407
|
|
|
1408
|
|
|
1409 ;; various other commands
|
|
|
1410
|
|
|
1411 (autoload 'comint-dynamic-complete "comint"
|
|
|
1412 "Dynamically perform completion at point." t)
|
|
|
1413
|
|
|
1414 (autoload 'shell-dynamic-complete-command "shell"
|
|
|
1415 "Dynamically complete the command at point." t)
|
|
|
1416
|
|
|
1417 (autoload 'comint-dynamic-complete-filename "comint"
|
|
|
1418 "Dynamically complete the filename at point." t)
|
|
|
1419
|
|
|
1420 (autoload 'shell-dynamic-complete-environment-variable "shell"
|
|
|
1421 "Dynamically complete the environment variable at point." t)
|
|
|
1422
|
|
|
1423
|
|
|
1424
|
|
|
1425 (defun sh-newline-and-indent ()
|
|
|
1426 "Strip unquoted whitespace, insert newline, and indent like current line."
|
|
|
1427 (interactive "*")
|
|
|
1428 (indent-to (prog1 (current-indentation)
|
|
|
1429 (delete-region (point)
|
|
|
1430 (progn
|
|
|
1431 (or (zerop (skip-chars-backward " \t"))
|
|
|
1432 (if (sh-quoted-p)
|
|
|
1433 (forward-char)))
|
|
|
1434 (point)))
|
|
|
1435 (newline))))
|
|
|
1436
|
|
|
1437
|
|
|
1438
|
|
|
1439 (defun sh-beginning-of-command ()
|
|
|
1440 "Move point to successive beginnings of commands."
|
|
|
1441 (interactive)
|
|
|
1442 (if (re-search-backward sh-beginning-of-command nil t)
|
|
|
1443 (goto-char (match-beginning 2))))
|
|
|
1444
|
|
|
1445
|
|
|
1446 (defun sh-end-of-command ()
|
|
|
1447 "Move point to successive ends of commands."
|
|
|
1448 (interactive)
|
|
|
1449 (if (re-search-forward sh-end-of-command nil t)
|
|
|
1450 (goto-char (match-end 1))))
|
|
|
1451
|
|
|
1452 (provide 'sh-script)
|
|
|
1453 ;; sh-script.el ends here
|
|
|
1454
|
