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1 ;;; octave-mod.el --- editing Octave source files under Emacs |
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2 |
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3 ;; Copyright (C) 1997, 2001, 2002, 2003, 2004, 2005, 2006, 2007 |
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4 ;; Free Software Foundation, Inc. |
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5 |
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6 ;; Author: Kurt Hornik <Kurt.Hornik@wu-wien.ac.at> |
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7 ;; Author: John Eaton <jwe@bevo.che.wisc.edu> |
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8 ;; Maintainer: Kurt Hornik <Kurt.Hornik@wu-wien.ac.at> |
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9 ;; Keywords: languages |
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10 |
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11 ;; This file is part of GNU Emacs. |
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12 |
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13 ;; GNU Emacs is free software; you can redistribute it and/or modify |
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14 ;; it under the terms of the GNU General Public License as published by |
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15 ;; the Free Software Foundation; either version 3, or (at your option) |
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16 ;; any later version. |
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17 |
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18 ;; GNU Emacs is distributed in the hope that it will be useful, |
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19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
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20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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21 ;; GNU General Public License for more details. |
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22 |
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23 ;; You should have received a copy of the GNU General Public License |
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24 ;; along with GNU Emacs; see the file COPYING. If not, write to the |
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25 ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
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26 ;; Boston, MA 02110-1301, USA. |
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27 |
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28 ;;; Commentary: |
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29 |
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30 ;; This package provides Emacs support for Octave. |
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31 ;; It defines Octave mode, a major mode for editing |
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32 ;; Octave code. |
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33 |
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34 ;; The file octave-hlp.el provides `octave-help', a facility for looking up |
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35 ;; documentation on a symbol in the Octave info files. |
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36 |
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37 ;; The file octave-inf.el contains code for interacting with an inferior |
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38 ;; Octave process using comint. |
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39 |
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40 ;; See the documentation of `octave-mode', `octave-help' and |
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41 ;; `run-octave' for further information on usage and customization. |
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42 |
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43 ;;; Code: |
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44 (require 'custom) |
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45 |
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46 (defgroup octave nil |
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47 "Major mode for editing Octave source files." |
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48 :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces) |
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49 :group 'languages) |
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50 |
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51 (defvar inferior-octave-output-list nil) |
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52 (defvar inferior-octave-output-string nil) |
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53 (defvar inferior-octave-receive-in-progress nil) |
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54 |
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55 (defconst octave-maintainer-address |
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56 "Kurt Hornik <Kurt.Hornik@wu-wien.ac.at>, bug-gnu-emacs@gnu.org" |
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57 "Current maintainer of the Emacs Octave package.") |
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58 |
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59 (defvar octave-abbrev-table nil |
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60 "Abbrev table for Octave's reserved words. |
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61 Used in `octave-mode' and inferior-octave-mode buffers. |
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62 All Octave abbrevs start with a grave accent (`).") |
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63 (unless octave-abbrev-table |
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64 (define-abbrev-table 'octave-abbrev-table ())) |
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65 |
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66 (let ((abbrevs-changed abbrevs-changed)) |
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67 (define-abbrev octave-abbrev-table "`a" "all_va_args" nil) |
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68 (define-abbrev octave-abbrev-table "`b" "break" nil) |
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69 (define-abbrev octave-abbrev-table "`cs" "case" nil) |
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70 (define-abbrev octave-abbrev-table "`ca" "catch" nil) |
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71 (define-abbrev octave-abbrev-table "`c" "continue" nil) |
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72 (define-abbrev octave-abbrev-table "`el" "else" nil) |
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73 (define-abbrev octave-abbrev-table "`eli" "elseif" nil) |
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74 (define-abbrev octave-abbrev-table "`et" "end_try_catch" nil) |
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75 (define-abbrev octave-abbrev-table "`eu" "end_unwind_protect" nil) |
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76 (define-abbrev octave-abbrev-table "`ef" "endfor" nil) |
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77 (define-abbrev octave-abbrev-table "`efu" "endfunction" nil) |
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78 (define-abbrev octave-abbrev-table "`ei" "endif" nil) |
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79 (define-abbrev octave-abbrev-table "`es" "endswitch" nil) |
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80 (define-abbrev octave-abbrev-table "`ew" "endwhile" nil) |
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81 (define-abbrev octave-abbrev-table "`f" "for" nil) |
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82 (define-abbrev octave-abbrev-table "`fu" "function" nil) |
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83 (define-abbrev octave-abbrev-table "`gl" "global" nil) |
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84 (define-abbrev octave-abbrev-table "`gp" "gplot" nil) |
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85 (define-abbrev octave-abbrev-table "`gs" "gsplot" nil) |
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86 (define-abbrev octave-abbrev-table "`if" "if ()" nil) |
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87 (define-abbrev octave-abbrev-table "`o" "otherwise" nil) |
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88 (define-abbrev octave-abbrev-table "`rp" "replot" nil) |
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89 (define-abbrev octave-abbrev-table "`r" "return" nil) |
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90 (define-abbrev octave-abbrev-table "`s" "switch" nil) |
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91 (define-abbrev octave-abbrev-table "`t" "try" nil) |
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92 (define-abbrev octave-abbrev-table "`u" "until ()" nil) |
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93 (define-abbrev octave-abbrev-table "`up" "unwind_protect" nil) |
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94 (define-abbrev octave-abbrev-table "`upc" "unwind_protect_cleanup" nil) |
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95 (define-abbrev octave-abbrev-table "`w" "while ()" nil)) |
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96 |
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97 (defvar octave-comment-char ?# |
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98 "Character to start an Octave comment.") |
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99 (defvar octave-comment-start |
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100 (string octave-comment-char ?\ ) |
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101 "String to insert to start a new Octave in-line comment.") |
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102 (defvar octave-comment-start-skip "\\s<+\\s-*" |
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103 "Regexp to match the start of an Octave comment up to its body.") |
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104 |
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105 (defvar octave-begin-keywords |
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106 '("do" "for" "function" "if" "switch" "try" "unwind_protect" "while")) |
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107 (defvar octave-else-keywords |
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108 '("case" "catch" "else" "elseif" "otherwise" "unwind_protect_cleanup")) |
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109 ;; FIXME: only use specific "end" tokens here to avoid confusion when "end" |
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110 ;; is used in indexing (the real fix is much more complex). |
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111 (defvar octave-end-keywords |
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112 '("endfor" "endfunction" "endif" "endswitch" "end_try_catch" |
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113 "end_unwind_protect" "endwhile" "until")) |
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114 |
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115 (defvar octave-reserved-words |
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116 (append octave-begin-keywords |
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117 octave-else-keywords |
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118 octave-end-keywords |
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119 '("break" "continue" "end" "global" "persistent" "return")) |
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120 "Reserved words in Octave.") |
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121 |
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122 (defvar octave-text-functions |
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123 '("casesen" "cd" "chdir" "clear" "diary" "dir" "document" "echo" |
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124 "edit_history" "format" "help" "history" "hold" |
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125 "load" "ls" "more" "run_history" "save" "type" |
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126 "which" "who" "whos") |
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127 "Text functions in Octave.") |
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128 |
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129 (defvar octave-variables |
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130 '("DEFAULT_EXEC_PATH" "DEFAULT_LOADPATH" |
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131 "EDITOR" "EXEC_PATH" "F_DUPFD" "F_GETFD" "F_GETFL" "F_SETFD" |
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132 "F_SETFL" "I" "IMAGE_PATH" "Inf" "J" |
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133 "NaN" "OCTAVE_VERSION" "O_APPEND" "O_CREAT" "O_EXCL" |
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134 "O_NONBLOCK" "O_RDONLY" "O_RDWR" "O_TRUNC" "O_WRONLY" "PAGER" "PS1" |
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135 "PS2" "PS4" "PWD" "SEEK_CUR" "SEEK_END" "SEEK_SET" "__F_DUPFD__" |
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136 "__F_GETFD__" "__F_GETFL__" "__F_SETFD__" "__F_SETFL__" "__I__" |
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137 "__Inf__" "__J__" "__NaN__" "__OCTAVE_VERSION__" "__O_APPEND__" |
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138 "__O_CREAT__" "__O_EXCL__" "__O_NONBLOCK__" "__O_RDONLY__" |
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139 "__O_RDWR__" "__O_TRUNC__" "__O_WRONLY__" "__PWD__" "__SEEK_CUR__" |
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140 "__SEEK_END__" "__SEEK_SET__" "__argv__" "__e__" "__eps__" |
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141 "__i__" "__inf__" "__j__" "__nan__" "__pi__" |
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142 "__program_invocation_name__" "__program_name__" "__realmax__" |
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143 "__realmin__" "__stderr__" "__stdin__" "__stdout__" "ans" "argv" |
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144 "beep_on_error" "completion_append_char" |
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145 "crash_dumps_octave_core" "default_save_format" |
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146 "e" "echo_executing_commands" "eps" |
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147 "error_text" "gnuplot_binary" "history_file" |
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148 "history_size" "ignore_function_time_stamp" |
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149 "inf" "nan" "nargin" "output_max_field_width" "output_precision" |
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150 "page_output_immediately" "page_screen_output" "pi" |
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151 "print_answer_id_name" "print_empty_dimensions" |
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152 "program_invocation_name" "program_name" |
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153 "realmax" "realmin" "return_last_computed_value" "save_precision" |
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154 "saving_history" "sighup_dumps_octave_core" "sigterm_dumps_octave_core" |
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155 "silent_functions" "split_long_rows" "stderr" "stdin" "stdout" |
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156 "string_fill_char" "struct_levels_to_print" |
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157 "suppress_verbose_help_message") |
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158 "Builtin variables in Octave.") |
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159 |
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160 (defvar octave-function-header-regexp |
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161 (concat "^\\s-*\\<\\(function\\)\\>" |
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162 "\\([^=;\n]*=[ \t]*\\|[ \t]*\\)\\(\\w+\\)\\>") |
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163 "Regexp to match an Octave function header. |
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164 The string `function' and its name are given by the first and third |
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165 parenthetical grouping.") |
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166 |
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167 (defvar octave-font-lock-keywords |
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168 (list |
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169 ;; Fontify all builtin keywords. |
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170 (cons (concat "\\<\\(" |
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171 (mapconcat 'identity octave-reserved-words "\\|") |
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172 (mapconcat 'identity octave-text-functions "\\|") |
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173 "\\)\\>") |
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174 'font-lock-keyword-face) |
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175 ;; Fontify all builtin operators. |
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176 (cons "\\(&\\||\\|<=\\|>=\\|==\\|<\\|>\\|!=\\|!\\)" |
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177 (if (boundp 'font-lock-builtin-face) |
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178 'font-lock-builtin-face |
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179 'font-lock-preprocessor-face)) |
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180 ;; Fontify all builtin variables. |
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181 (cons (concat "\\<\\(" |
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182 (mapconcat 'identity octave-variables "\\|") |
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183 "\\)\\>") |
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184 'font-lock-variable-name-face) |
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185 ;; Fontify all function declarations. |
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186 (list octave-function-header-regexp |
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187 '(1 font-lock-keyword-face) |
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188 '(3 font-lock-function-name-face nil t))) |
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189 "Additional Octave expressions to highlight.") |
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190 |
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191 (defcustom inferior-octave-buffer "*Inferior Octave*" |
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192 "Name of buffer for running an inferior Octave process." |
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193 :type 'string |
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194 :group 'octave-inferior) |
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195 |
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196 (defvar inferior-octave-process nil) |
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197 |
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198 (defvar octave-mode-map |
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199 (let ((map (make-sparse-keymap))) |
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200 (define-key map "`" 'octave-abbrev-start) |
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201 (define-key map ";" 'octave-electric-semi) |
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202 (define-key map " " 'octave-electric-space) |
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203 (define-key map "\n" 'octave-reindent-then-newline-and-indent) |
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204 (define-key map "\e;" 'octave-indent-for-comment) |
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205 (define-key map "\e\n" 'octave-indent-new-comment-line) |
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206 (define-key map "\e\t" 'octave-complete-symbol) |
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207 (define-key map "\M-\C-a" 'octave-beginning-of-defun) |
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208 (define-key map "\M-\C-e" 'octave-end-of-defun) |
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209 (define-key map "\M-\C-h" 'octave-mark-defun) |
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210 (define-key map "\M-\C-q" 'octave-indent-defun) |
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211 (define-key map "\C-c;" 'octave-comment-region) |
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212 (define-key map "\C-c:" 'octave-uncomment-region) |
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213 (define-key map "\C-c\C-b" 'octave-submit-bug-report) |
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214 (define-key map "\C-c\C-p" 'octave-previous-code-line) |
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215 (define-key map "\C-c\C-n" 'octave-next-code-line) |
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216 (define-key map "\C-c\C-a" 'octave-beginning-of-line) |
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217 (define-key map "\C-c\C-e" 'octave-end-of-line) |
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218 (define-key map "\C-c\M-\C-n" 'octave-forward-block) |
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219 (define-key map "\C-c\M-\C-p" 'octave-backward-block) |
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220 (define-key map "\C-c\M-\C-u" 'octave-backward-up-block) |
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221 (define-key map "\C-c\M-\C-d" 'octave-down-block) |
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222 (define-key map "\C-c\M-\C-h" 'octave-mark-block) |
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223 (define-key map "\C-c]" 'octave-close-block) |
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224 (define-key map "\C-c\C-f" 'octave-insert-defun) |
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225 (define-key map "\C-c\C-h" 'octave-help) |
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226 (define-key map "\C-c\C-il" 'octave-send-line) |
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227 (define-key map "\C-c\C-ib" 'octave-send-block) |
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228 (define-key map "\C-c\C-if" 'octave-send-defun) |
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229 (define-key map "\C-c\C-ir" 'octave-send-region) |
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230 (define-key map "\C-c\C-is" 'octave-show-process-buffer) |
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231 (define-key map "\C-c\C-ih" 'octave-hide-process-buffer) |
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232 (define-key map "\C-c\C-ik" 'octave-kill-process) |
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233 (define-key map "\C-c\C-i\C-l" 'octave-send-line) |
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234 (define-key map "\C-c\C-i\C-b" 'octave-send-block) |
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235 (define-key map "\C-c\C-i\C-f" 'octave-send-defun) |
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236 (define-key map "\C-c\C-i\C-r" 'octave-send-region) |
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237 (define-key map "\C-c\C-i\C-s" 'octave-show-process-buffer) |
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238 (define-key map "\C-c\C-i\C-h" 'octave-hide-process-buffer) |
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239 (define-key map "\C-c\C-i\C-k" 'octave-kill-process) |
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240 map) |
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241 "Keymap used in Octave mode.") |
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242 |
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243 |
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244 (defvar octave-mode-menu |
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245 '("Octave" |
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246 '("Lines" |
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247 ["Previous Code Line" octave-previous-code-line t] |
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248 ["Next Code Line" octave-next-code-line t] |
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249 ["Begin of Continuation" octave-beginning-of-line t] |
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250 ["End of Continuation" octave-end-of-line t] |
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251 ["Split Line at Point" octave-indent-new-comment-line t]) |
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252 '("Blocks" |
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253 ["Next Block" octave-forward-block t] |
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254 ["Previous Block" octave-backward-block t] |
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255 ["Down Block" octave-down-block t] |
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256 ["Up Block" octave-backward-up-block t] |
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257 ["Mark Block" octave-mark-block t] |
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258 ["Close Block" octave-close-block t]) |
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259 '("Functions" |
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260 ["Begin of Function" octave-beginning-of-defun t] |
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261 ["End of Function" octave-end-of-defun t] |
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262 ["Mark Function" octave-mark-defun t] |
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263 ["Indent Function" octave-indent-defun t] |
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264 ["Insert Function" octave-insert-defun t]) |
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265 "-" |
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266 '("Debug" |
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267 ["Send Current Line" octave-send-line t] |
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268 ["Send Current Block" octave-send-block t] |
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269 ["Send Current Function" octave-send-defun t] |
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270 ["Send Region" octave-send-region t] |
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271 ["Show Process Buffer" octave-show-process-buffer t] |
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272 ["Hide Process Buffer" octave-hide-process-buffer t] |
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273 ["Kill Process" octave-kill-process t]) |
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274 "-" |
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275 ["Indent Line" indent-according-to-mode t] |
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276 ["Complete Symbol" octave-complete-symbol t] |
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277 "-" |
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278 ["Toggle Abbrev Mode" abbrev-mode t] |
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279 ["Toggle Auto-Fill Mode" auto-fill-mode t] |
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280 "-" |
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281 ["Submit Bug Report" octave-submit-bug-report t] |
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282 "-" |
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283 ["Describe Octave Mode" octave-describe-major-mode t] |
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284 ["Lookup Octave Index" octave-help t]) |
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285 "Menu for Octave mode.") |
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286 |
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287 (defvar octave-mode-syntax-table |
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288 (let ((table (make-syntax-table))) |
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289 (modify-syntax-entry ?\r " " table) |
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290 (modify-syntax-entry ?+ "." table) |
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291 (modify-syntax-entry ?- "." table) |
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292 (modify-syntax-entry ?= "." table) |
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293 (modify-syntax-entry ?* "." table) |
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294 (modify-syntax-entry ?/ "." table) |
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295 (modify-syntax-entry ?> "." table) |
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296 (modify-syntax-entry ?< "." table) |
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297 (modify-syntax-entry ?& "." table) |
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298 (modify-syntax-entry ?| "." table) |
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299 (modify-syntax-entry ?! "." table) |
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300 (modify-syntax-entry ?\\ "\\" table) |
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301 (modify-syntax-entry ?\' "." table) |
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302 (modify-syntax-entry ?\` "w" table) |
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303 (modify-syntax-entry ?\" "\"" table) |
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304 (modify-syntax-entry ?. "w" table) |
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305 (modify-syntax-entry ?_ "w" table) |
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306 (modify-syntax-entry ?\% "<" table) |
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307 (modify-syntax-entry ?\# "<" table) |
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308 (modify-syntax-entry ?\n ">" table) |
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309 table) |
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310 "Syntax table in use in `octave-mode' buffers.") |
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311 |
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312 (defcustom octave-auto-indent nil |
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313 "Non-nil means indent line after a semicolon or space in Octave mode." |
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314 :type 'boolean |
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315 :group 'octave) |
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316 |
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317 (defcustom octave-auto-newline nil |
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318 "Non-nil means automatically newline after a semicolon in Octave mode." |
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319 :type 'boolean |
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320 :group 'octave) |
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321 |
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322 (defcustom octave-blink-matching-block t |
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323 "Control the blinking of matching Octave block keywords. |
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324 Non-nil means show matching begin of block when inserting a space, |
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325 newline or semicolon after an else or end keyword." |
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326 :type 'boolean |
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327 :group 'octave) |
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328 (defcustom octave-block-offset 2 |
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329 "Extra indentation applied to statements in Octave block structures." |
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330 :type 'integer |
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331 :group 'octave) |
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332 |
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333 (defvar octave-block-begin-regexp |
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334 (concat "\\<\\(" |
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335 (mapconcat 'identity octave-begin-keywords "\\|") |
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336 "\\)\\>")) |
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337 (defvar octave-block-else-regexp |
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338 (concat "\\<\\(" |
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339 (mapconcat 'identity octave-else-keywords "\\|") |
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340 "\\)\\>")) |
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341 (defvar octave-block-end-regexp |
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342 (concat "\\<\\(" |
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343 (mapconcat 'identity octave-end-keywords "\\|") |
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344 "\\)\\>")) |
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345 (defvar octave-block-begin-or-end-regexp |
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346 (concat octave-block-begin-regexp "\\|" octave-block-end-regexp)) |
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347 (defvar octave-block-else-or-end-regexp |
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348 (concat octave-block-else-regexp "\\|" octave-block-end-regexp)) |
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349 ;; FIXME: only use specific "end" tokens here to avoid confusion when "end" |
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350 ;; is used in indexing (the real fix is much more complex). |
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351 (defvar octave-block-match-alist |
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352 '(("do" . ("until")) |
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353 ("for" . ("endfor")) |
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354 ("function" . ("endfunction")) |
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355 ("if" . ("else" "elseif" "endif")) |
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356 ("switch" . ("case" "otherwise" "endswitch")) |
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357 ("try" . ("catch" "end_try_catch")) |
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358 ("unwind_protect" . ("unwind_protect_cleanup" "end_unwind_protect")) |
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359 ("while" . ("endwhile"))) |
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360 "Alist with Octave's matching block keywords. |
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361 Has Octave's begin keywords as keys and a list of the matching else or |
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362 end keywords as associated values.") |
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363 |
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364 (defvar octave-block-comment-start |
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365 (concat (make-string 2 octave-comment-char) " ") |
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366 "String to insert to start a new Octave comment on an empty line.") |
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367 |
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368 (defcustom octave-continuation-offset 4 |
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369 "Extra indentation applied to Octave continuation lines." |
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370 :type 'integer |
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371 :group 'octave) |
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372 (defvar octave-continuation-regexp |
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373 "[^#%\n]*\\(\\\\\\|\\.\\.\\.\\)\\s-*\\(\\s<.*\\)?$") |
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374 (defcustom octave-continuation-string "\\" |
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375 "Character string used for Octave continuation lines. Normally \\." |
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376 :type 'string |
|
377 :group 'octave) |
2617
|
378 |
|
379 (defvar octave-completion-alist nil |
|
380 "Alist of Octave symbols for completion in Octave mode. |
|
381 Each element looks like (VAR . VAR), where the car and cdr are the same |
|
382 symbol (an Octave command or variable name). |
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|
383 Currently, only builtin variables can be completed.") |
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|
384 |
|
385 (defvar octave-mode-imenu-generic-expression |
|
386 (list |
|
387 ;; Functions |
|
388 (list nil octave-function-header-regexp 3)) |
|
389 "Imenu expression for Octave mode. See `imenu-generic-expression'.") |
|
390 |
3270
|
391 (defcustom octave-mode-hook nil |
6976
|
392 "Hook to be run when Octave mode is started." |
3270
|
393 :type 'hook |
|
394 :group 'octave) |
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|
395 |
3270
|
396 (defcustom octave-send-show-buffer t |
6976
|
397 "Non-nil means display `inferior-octave-buffer' after sending to it." |
3270
|
398 :type 'boolean |
|
399 :group 'octave) |
|
400 (defcustom octave-send-line-auto-forward t |
6976
|
401 "Control auto-forward after sending to the inferior Octave process. |
3270
|
402 Non-nil means always go to the next Octave code line after sending." |
|
403 :type 'boolean |
|
404 :group 'octave) |
|
405 (defcustom octave-send-echo-input t |
6976
|
406 "Non-nil means echo input sent to the inferior Octave process." |
3270
|
407 :type 'boolean |
|
408 :group 'octave) |
2617
|
409 |
|
410 |
|
411 ;;;###autoload |
|
412 (defun octave-mode () |
|
413 "Major mode for editing Octave code. |
|
414 |
|
415 This mode makes it easier to write Octave code by helping with |
|
416 indentation, doing some of the typing for you (with Abbrev mode) and by |
6976
|
417 showing keywords, comments, strings, etc.. in different faces (with |
2617
|
418 Font Lock mode on terminals that support it). |
|
419 |
|
420 Octave itself is a high-level language, primarily intended for numerical |
|
421 computations. It provides a convenient command line interface for |
|
422 solving linear and nonlinear problems numerically. Function definitions |
|
423 can also be stored in files, and it can be used in a batch mode (which |
|
424 is why you need this mode!). |
|
425 |
|
426 The latest released version of Octave is always available via anonymous |
5041
|
427 ftp from ftp.octave.org in the directory `/pub/octave'. Complete |
2617
|
428 source and binaries for several popular systems are available. |
|
429 |
|
430 Type \\[list-abbrevs] to display the built-in abbrevs for Octave keywords. |
|
431 |
|
432 Keybindings |
|
433 =========== |
|
434 |
|
435 \\{octave-mode-map} |
|
436 |
|
437 Variables you can use to customize Octave mode |
|
438 ============================================== |
|
439 |
6976
|
440 `octave-auto-indent' |
3069
|
441 Non-nil means indent current line after a semicolon or space. |
|
442 Default is nil. |
|
443 |
6976
|
444 `octave-auto-newline' |
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|
445 Non-nil means auto-insert a newline and indent after a semicolon. |
|
446 Default is nil. |
|
447 |
6976
|
448 `octave-blink-matching-block' |
2617
|
449 Non-nil means show matching begin of block when inserting a space, |
|
450 newline or semicolon after an else or end keyword. Default is t. |
|
451 |
6976
|
452 `octave-block-offset' |
2617
|
453 Extra indentation applied to statements in block structures. |
|
454 Default is 2. |
|
455 |
6976
|
456 `octave-continuation-offset' |
2617
|
457 Extra indentation applied to Octave continuation lines. |
|
458 Default is 4. |
|
459 |
6976
|
460 `octave-continuation-string' |
2617
|
461 String used for Octave continuation lines. |
|
462 Default is a backslash. |
|
463 |
6976
|
464 `octave-send-echo-input' |
2617
|
465 Non-nil means always display `inferior-octave-buffer' after sending a |
|
466 command to the inferior Octave process. |
|
467 |
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|
468 `octave-send-line-auto-forward' |
2617
|
469 Non-nil means always go to the next unsent line of Octave code after |
|
470 sending a line to the inferior Octave process. |
|
471 |
6976
|
472 `octave-send-echo-input' |
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|
473 Non-nil means echo input sent to the inferior Octave process. |
|
474 |
|
475 Turning on Octave mode runs the hook `octave-mode-hook'. |
|
476 |
|
477 To begin using this mode for all `.m' files that you edit, add the |
|
478 following lines to your `.emacs' file: |
|
479 |
6976
|
480 (add-to-list 'auto-mode-alist '(\"\\\\.m\\\\'\" . octave-mode)) |
2617
|
481 |
6976
|
482 To automatically turn on the abbrev and auto-fill features, |
2617
|
483 add the following lines to your `.emacs' file as well: |
|
484 |
|
485 (add-hook 'octave-mode-hook |
|
486 (lambda () |
|
487 (abbrev-mode 1) |
6976
|
488 (auto-fill-mode 1))) |
2617
|
489 |
|
490 To submit a problem report, enter \\[octave-submit-bug-report] from \ |
|
491 an Octave mode buffer. |
|
492 This automatically sets up a mail buffer with version information |
|
493 already added. You just need to add a description of the problem, |
|
494 including a reproducible test case and send the message." |
|
495 (interactive) |
|
496 (kill-all-local-variables) |
|
497 |
|
498 (use-local-map octave-mode-map) |
|
499 (setq major-mode 'octave-mode) |
|
500 (setq mode-name "Octave") |
|
501 (setq local-abbrev-table octave-abbrev-table) |
|
502 (set-syntax-table octave-mode-syntax-table) |
5204
|
503 |
2617
|
504 (make-local-variable 'indent-line-function) |
|
505 (setq indent-line-function 'octave-indent-line) |
|
506 |
5204
|
507 (make-local-variable 'comment-start) |
2617
|
508 (setq comment-start octave-comment-start) |
|
509 (make-local-variable 'comment-end) |
|
510 (setq comment-end "") |
|
511 (make-local-variable 'comment-column) |
5204
|
512 (setq comment-column 32) |
2617
|
513 (make-local-variable 'comment-start-skip) |
|
514 (setq comment-start-skip "\\s<+\\s-*") |
|
515 (make-local-variable 'comment-indent-function) |
|
516 (setq comment-indent-function 'octave-comment-indent) |
|
517 |
|
518 (make-local-variable 'parse-sexp-ignore-comments) |
|
519 (setq parse-sexp-ignore-comments t) |
|
520 (make-local-variable 'paragraph-start) |
|
521 (setq paragraph-start (concat "\\s-*$\\|" page-delimiter)) |
|
522 (make-local-variable 'paragraph-separate) |
|
523 (setq paragraph-separate paragraph-start) |
|
524 (make-local-variable 'paragraph-ignore-fill-prefix) |
|
525 (setq paragraph-ignore-fill-prefix t) |
|
526 (make-local-variable 'fill-paragraph-function) |
|
527 (setq fill-paragraph-function 'octave-fill-paragraph) |
|
528 (make-local-variable 'adaptive-fill-regexp) |
|
529 (setq adaptive-fill-regexp nil) |
|
530 (make-local-variable 'fill-column) |
|
531 (setq fill-column 72) |
|
532 (make-local-variable 'normal-auto-fill-function) |
|
533 (setq normal-auto-fill-function 'octave-auto-fill) |
|
534 |
|
535 (make-local-variable 'font-lock-defaults) |
|
536 (setq font-lock-defaults '(octave-font-lock-keywords nil nil)) |
|
537 |
|
538 (make-local-variable 'imenu-generic-expression) |
3270
|
539 (setq imenu-generic-expression octave-mode-imenu-generic-expression |
|
540 imenu-case-fold-search nil) |
3176
|
541 |
2617
|
542 (octave-add-octave-menu) |
|
543 (octave-initialize-completions) |
6976
|
544 (run-mode-hooks 'octave-mode-hook)) |
2617
|
545 |
|
546 ;;; Miscellaneous useful functions |
|
547 (defun octave-describe-major-mode () |
|
548 "Describe the current major mode." |
|
549 (interactive) |
|
550 (describe-function major-mode)) |
|
551 |
|
552 (defsubst octave-in-comment-p () |
6976
|
553 "Return t if point is inside an Octave comment." |
2617
|
554 (interactive) |
|
555 (save-excursion |
4570
|
556 (nth 4 (parse-partial-sexp (line-beginning-position) (point))))) |
2617
|
557 |
|
558 (defsubst octave-in-string-p () |
6976
|
559 "Return t if point is inside an Octave string." |
2617
|
560 (interactive) |
|
561 (save-excursion |
4570
|
562 (nth 3 (parse-partial-sexp (line-beginning-position) (point))))) |
2617
|
563 |
|
564 (defsubst octave-not-in-string-or-comment-p () |
6976
|
565 "Return t if point is not inside an Octave string or comment." |
4570
|
566 (let ((pps (parse-partial-sexp (line-beginning-position) (point)))) |
2617
|
567 (not (or (nth 3 pps) (nth 4 pps))))) |
|
568 |
|
569 (defun octave-in-block-p () |
6976
|
570 "Return t if point is inside an Octave block. |
2617
|
571 The block is taken to start at the first letter of the begin keyword and |
|
572 to end after the end keyword." |
|
573 (let ((pos (point))) |
|
574 (save-excursion |
|
575 (condition-case nil |
|
576 (progn |
|
577 (skip-syntax-forward "w") |
|
578 (octave-up-block -1) |
|
579 (octave-forward-block) |
|
580 t) |
|
581 (error nil)) |
|
582 (< pos (point))))) |
|
583 |
|
584 (defun octave-in-defun-p () |
6976
|
585 "Return t if point is inside an Octave function declaration. |
2617
|
586 The function is taken to start at the `f' of `function' and to end after |
|
587 the end keyword." |
|
588 (let ((pos (point))) |
|
589 (save-excursion |
|
590 (or (and (looking-at "\\<function\\>") |
|
591 (octave-not-in-string-or-comment-p)) |
|
592 (and (octave-beginning-of-defun) |
|
593 (condition-case nil |
|
594 (progn |
|
595 (octave-forward-block) |
|
596 t) |
|
597 (error nil)) |
|
598 (< pos (point))))))) |
|
599 |
3083
|
600 (defun octave-maybe-insert-continuation-string () |
|
601 (if (or (octave-in-comment-p) |
|
602 (save-excursion |
|
603 (beginning-of-line) |
|
604 (looking-at octave-continuation-regexp))) |
|
605 nil |
|
606 (delete-horizontal-space) |
|
607 (insert (concat " " octave-continuation-string)))) |
|
608 |
6976
|
609 (defvar octave-xemacs-p |
|
610 (string-match "XEmacs\\|Lucid" emacs-version)) |
|
611 |
2617
|
612 ;;; Comments |
|
613 (defun octave-comment-region (beg end &optional arg) |
|
614 "Comment or uncomment each line in the region as Octave code. |
|
615 See `comment-region'." |
|
616 (interactive "r\nP") |
|
617 (let ((comment-start (char-to-string octave-comment-char))) |
|
618 (comment-region beg end arg))) |
5204
|
619 |
2617
|
620 (defun octave-uncomment-region (beg end &optional arg) |
|
621 "Uncomment each line in the region as Octave code." |
|
622 (interactive "r\nP") |
|
623 (or arg (setq arg 1)) |
|
624 (octave-comment-region beg end (- arg))) |
|
625 |
|
626 |
|
627 ;;; Indentation |
|
628 (defun calculate-octave-indent () |
|
629 "Return appropriate indentation for current line as Octave code. |
|
630 Returns an integer (the column to indent to) unless the line is a |
|
631 comment line with fixed goal golumn. In that case, returns a list whose |
|
632 car is the column to indent to, and whose cdr is the current indentation |
|
633 level." |
|
634 (let ((is-continuation-line |
|
635 (save-excursion |
|
636 (if (zerop (octave-previous-code-line)) |
|
637 (looking-at octave-continuation-regexp)))) |
|
638 (icol 0)) |
|
639 (save-excursion |
|
640 (beginning-of-line) |
|
641 ;; If we can move backward out one level of parentheses, take 1 |
|
642 ;; plus the indentation of that parenthesis. Otherwise, go back |
|
643 ;; to the beginning of the previous code line, and compute the |
|
644 ;; offset this line gives. |
|
645 (if (condition-case nil |
|
646 (progn |
|
647 (up-list -1) |
|
648 t) |
|
649 (error nil)) |
|
650 (setq icol (+ 1 (current-column))) |
|
651 (if (zerop (octave-previous-code-line)) |
|
652 (progn |
|
653 (octave-beginning-of-line) |
|
654 (back-to-indentation) |
|
655 (setq icol (current-column)) |
|
656 (let ((bot (point)) |
4570
|
657 (eol (line-end-position))) |
2617
|
658 (while (< (point) eol) |
|
659 (if (octave-not-in-string-or-comment-p) |
|
660 (cond |
2788
|
661 ((looking-at "\\<switch\\>") |
|
662 (setq icol (+ icol (* 2 octave-block-offset)))) |
2617
|
663 ((looking-at octave-block-begin-regexp) |
|
664 (setq icol (+ icol octave-block-offset))) |
|
665 ((looking-at octave-block-else-regexp) |
|
666 (if (= bot (point)) |
|
667 (setq icol (+ icol octave-block-offset)))) |
|
668 ((looking-at octave-block-end-regexp) |
|
669 (if (not (= bot (point))) |
2788
|
670 (setq icol (- icol |
|
671 (octave-block-end-offset))))))) |
2617
|
672 (forward-char))) |
|
673 (if is-continuation-line |
|
674 (setq icol (+ icol octave-continuation-offset))))))) |
|
675 (save-excursion |
|
676 (back-to-indentation) |
|
677 (cond |
2788
|
678 ((and (looking-at octave-block-else-regexp) |
2617
|
679 (octave-not-in-string-or-comment-p)) |
|
680 (setq icol (- icol octave-block-offset))) |
2788
|
681 ((and (looking-at octave-block-end-regexp) |
|
682 (octave-not-in-string-or-comment-p)) |
|
683 (setq icol (- icol (octave-block-end-offset)))) |
3081
|
684 ((or (looking-at "\\s<\\s<\\s<\\S<") |
|
685 (octave-before-magic-comment-p)) |
2617
|
686 (setq icol (list 0 icol))) |
|
687 ((looking-at "\\s<\\S<") |
|
688 (setq icol (list comment-column icol))))) |
|
689 icol)) |
|
690 |
2788
|
691 (defun octave-block-end-offset () |
|
692 (save-excursion |
|
693 (octave-backward-up-block 1) |
|
694 (* octave-block-offset |
|
695 (if (string-match (match-string 0) "switch") 2 1)))) |
|
696 |
3081
|
697 (defun octave-before-magic-comment-p () |
|
698 (save-excursion |
|
699 (beginning-of-line) |
|
700 (and (bobp) (looking-at "\\s-*#!")))) |
|
701 |
2617
|
702 (defun octave-comment-indent () |
3081
|
703 (if (or (looking-at "\\s<\\s<\\s<") |
|
704 (octave-before-magic-comment-p)) |
2617
|
705 0 |
|
706 (if (looking-at "\\s<\\s<") |
|
707 (calculate-octave-indent) |
|
708 (skip-syntax-backward " ") |
2788
|
709 (max (if (bolp) 0 (+ 1 (current-column))) |
2617
|
710 comment-column)))) |
|
711 |
|
712 (defun octave-indent-for-comment () |
|
713 "Maybe insert and indent an Octave comment. |
|
714 If there is no comment already on this line, create a code-level comment |
5204
|
715 \(started by two comment characters) if the line is empty, or an in-line |
|
716 comment (started by one comment character) otherwise. |
2617
|
717 Point is left after the start of the comment which is properly aligned." |
|
718 (interactive) |
5636
|
719 (beginning-of-line) |
|
720 (if (looking-at "^\\s-*$") |
|
721 (insert octave-block-comment-start) |
|
722 (indent-for-comment)) |
2617
|
723 (indent-according-to-mode)) |
|
724 |
|
725 (defun octave-indent-line (&optional arg) |
|
726 "Indent current line as Octave code. |
|
727 With optional ARG, use this as offset unless this line is a comment with |
|
728 fixed goal column." |
|
729 (interactive) |
|
730 (or arg (setq arg 0)) |
|
731 (let ((icol (calculate-octave-indent)) |
|
732 (relpos (- (current-column) (current-indentation)))) |
|
733 (if (listp icol) |
|
734 (setq icol (car icol)) |
|
735 (setq icol (+ icol arg))) |
|
736 (if (< icol 0) |
|
737 (error "Unmatched end keyword") |
|
738 (indent-line-to icol) |
|
739 (if (> relpos 0) |
|
740 (move-to-column (+ icol relpos)))))) |
|
741 |
|
742 (defun octave-indent-new-comment-line () |
|
743 "Break Octave line at point, continuing comment if within one. |
|
744 If within code, insert `octave-continuation-string' before breaking the |
5204
|
745 line. If within a string, signal an error. |
|
746 The new line is properly indented." |
2617
|
747 (interactive) |
|
748 (delete-horizontal-space) |
|
749 (cond |
|
750 ((octave-in-comment-p) |
|
751 (indent-new-comment-line)) |
|
752 ((octave-in-string-p) |
|
753 (error "Cannot split a code line inside a string")) |
|
754 (t |
|
755 (insert (concat " " octave-continuation-string)) |
|
756 (octave-reindent-then-newline-and-indent)))) |
|
757 |
|
758 (defun octave-indent-defun () |
6976
|
759 "Properly indent the Octave function which contains point." |
2617
|
760 (interactive) |
|
761 (save-excursion |
|
762 (octave-mark-defun) |
|
763 (message "Indenting function...") |
|
764 (indent-region (point) (mark) nil)) |
|
765 (message "Indenting function...done.")) |
|
766 |
|
767 |
|
768 ;;; Motion |
|
769 (defun octave-next-code-line (&optional arg) |
|
770 "Move ARG lines of Octave code forward (backward if ARG is negative). |
|
771 Skips past all empty and comment lines. Default for ARG is 1. |
|
772 |
|
773 On success, return 0. Otherwise, go as far as possible and return -1." |
|
774 (interactive "p") |
|
775 (or arg (setq arg 1)) |
|
776 (beginning-of-line) |
|
777 (let ((n 0) |
|
778 (inc (if (> arg 0) 1 -1))) |
|
779 (while (and (/= arg 0) (= n 0)) |
|
780 (setq n (forward-line inc)) |
|
781 (while (and (= n 0) |
|
782 (looking-at "\\s-*\\($\\|\\s<\\)")) |
|
783 (setq n (forward-line inc))) |
|
784 (setq arg (- arg inc))) |
|
785 n)) |
5204
|
786 |
2617
|
787 (defun octave-previous-code-line (&optional arg) |
|
788 "Move ARG lines of Octave code backward (forward if ARG is negative). |
|
789 Skips past all empty and comment lines. Default for ARG is 1. |
|
790 |
|
791 On success, return 0. Otherwise, go as far as possible and return -1." |
|
792 (interactive "p") |
|
793 (or arg (setq arg 1)) |
|
794 (octave-next-code-line (- arg))) |
|
795 |
|
796 (defun octave-beginning-of-line () |
|
797 "Move point to beginning of current Octave line. |
|
798 If on an empty or comment line, go to the beginning of that line. |
|
799 Otherwise, move backward to the beginning of the first Octave code line |
|
800 which is not inside a continuation statement, i.e., which does not |
|
801 follow a code line ending in `...' or `\\', or is inside an open |
|
802 parenthesis list." |
|
803 (interactive) |
|
804 (beginning-of-line) |
|
805 (if (not (looking-at "\\s-*\\($\\|\\s<\\)")) |
|
806 (while (or (condition-case nil |
|
807 (progn |
|
808 (up-list -1) |
|
809 (beginning-of-line) |
|
810 t) |
|
811 (error nil)) |
|
812 (and (or (looking-at "\\s-*\\($\\|\\s<\\)") |
|
813 (save-excursion |
|
814 (if (zerop (octave-previous-code-line)) |
|
815 (looking-at octave-continuation-regexp)))) |
|
816 (zerop (forward-line -1))))))) |
|
817 |
|
818 (defun octave-end-of-line () |
|
819 "Move point to end of current Octave line. |
|
820 If on an empty or comment line, go to the end of that line. |
|
821 Otherwise, move forward to the end of the first Octave code line which |
|
822 does not end in `...' or `\\' or is inside an open parenthesis list." |
|
823 (interactive) |
|
824 (end-of-line) |
|
825 (if (save-excursion |
|
826 (beginning-of-line) |
|
827 (looking-at "\\s-*\\($\\|\\s<\\)")) |
|
828 () |
|
829 (while (or (condition-case nil |
|
830 (progn |
|
831 (up-list 1) |
|
832 (end-of-line) |
|
833 t) |
|
834 (error nil)) |
|
835 (and (save-excursion |
|
836 (beginning-of-line) |
|
837 (or (looking-at "\\s-*\\($\\|\\s<\\)") |
|
838 (looking-at octave-continuation-regexp))) |
|
839 (zerop (forward-line 1))))) |
|
840 (end-of-line))) |
5204
|
841 |
6976
|
842 (defun octave-scan-blocks (count depth) |
|
843 "Scan from point by COUNT Octave begin-end blocks. |
2617
|
844 Returns the character number of the position thus found. |
|
845 |
|
846 If DEPTH is nonzero, block depth begins counting from that value. |
|
847 Only places where the depth in blocks becomes zero are candidates for |
|
848 stopping; COUNT such places are counted. |
|
849 |
|
850 If the beginning or end of the buffer is reached and the depth is wrong, |
|
851 an error is signaled." |
|
852 (let ((min-depth (if (> depth 0) 0 depth)) |
|
853 (inc (if (> count 0) 1 -1))) |
|
854 (save-excursion |
|
855 (while (/= count 0) |
|
856 (catch 'foo |
|
857 (while (or (re-search-forward |
|
858 octave-block-begin-or-end-regexp nil 'move inc) |
|
859 (if (/= depth 0) |
|
860 (error "Unbalanced block"))) |
|
861 (if (octave-not-in-string-or-comment-p) |
|
862 (progn |
|
863 (cond |
|
864 ((match-end 1) |
|
865 (setq depth (+ depth inc))) |
|
866 ((match-end 2) |
|
867 (setq depth (- depth inc)))) |
|
868 (if (< depth min-depth) |
|
869 (error "Containing expression ends prematurely")) |
|
870 (if (= depth 0) |
|
871 (throw 'foo nil)))))) |
|
872 (setq count (- count inc))) |
|
873 (point)))) |
|
874 |
|
875 (defun octave-forward-block (&optional arg) |
|
876 "Move forward across one balanced Octave begin-end block. |
|
877 With argument, do it that many times. |
|
878 Negative arg -N means move backward across N blocks." |
|
879 (interactive "p") |
|
880 (or arg (setq arg 1)) |
6976
|
881 (goto-char (or (octave-scan-blocks arg 0) (buffer-end arg)))) |
2617
|
882 |
|
883 (defun octave-backward-block (&optional arg) |
|
884 "Move backward across one balanced Octave begin-end block. |
|
885 With argument, do it that many times. |
|
886 Negative arg -N means move forward across N blocks." |
|
887 (interactive "p") |
|
888 (or arg (setq arg 1)) |
|
889 (octave-forward-block (- arg))) |
|
890 |
|
891 (defun octave-down-block (arg) |
|
892 "Move forward down one begin-end block level of Octave code. |
|
893 With argument, do this that many times. |
|
894 A negative argument means move backward but still go down a level. |
|
895 In Lisp programs, an argument is required." |
|
896 (interactive "p") |
|
897 (let ((inc (if (> arg 0) 1 -1))) |
|
898 (while (/= arg 0) |
6976
|
899 (goto-char (or (octave-scan-blocks inc -1) |
2617
|
900 (buffer-end arg))) |
|
901 (setq arg (- arg inc))))) |
|
902 |
|
903 (defun octave-backward-up-block (arg) |
|
904 "Move backward out of one begin-end block level of Octave code. |
|
905 With argument, do this that many times. |
|
906 A negative argument means move forward but still to a less deep spot. |
|
907 In Lisp programs, an argument is required." |
|
908 (interactive "p") |
|
909 (octave-up-block (- arg))) |
|
910 |
|
911 (defun octave-up-block (arg) |
|
912 "Move forward out of one begin-end block level of Octave code. |
|
913 With argument, do this that many times. |
|
914 A negative argument means move backward but still to a less deep spot. |
|
915 In Lisp programs, an argument is required." |
|
916 (interactive "p") |
|
917 (let ((inc (if (> arg 0) 1 -1))) |
|
918 (while (/= arg 0) |
6976
|
919 (goto-char (or (octave-scan-blocks inc 1) |
2617
|
920 (buffer-end arg))) |
|
921 (setq arg (- arg inc))))) |
|
922 |
|
923 (defun octave-mark-block () |
|
924 "Put point at the beginning of this Octave block, mark at the end. |
|
925 The block marked is the one that contains point or follows point." |
|
926 (interactive) |
|
927 (let ((pos (point))) |
|
928 (if (or (and (octave-in-block-p) |
|
929 (skip-syntax-forward "w")) |
|
930 (condition-case nil |
|
931 (progn |
|
932 (octave-down-block 1) |
|
933 (octave-in-block-p)) |
|
934 (error nil))) |
|
935 (progn |
|
936 (octave-up-block -1) |
|
937 (push-mark (point)) |
|
938 (octave-forward-block) |
|
939 (exchange-point-and-mark)) |
|
940 (goto-char pos) |
|
941 (message "No block to mark found")))) |
|
942 |
|
943 (defun octave-close-block () |
|
944 "Close the current Octave block on a separate line. |
|
945 An error is signaled if no block to close is found." |
|
946 (interactive) |
|
947 (let (bb-keyword) |
|
948 (condition-case nil |
|
949 (progn |
|
950 (save-excursion |
|
951 (octave-backward-up-block 1) |
|
952 (setq bb-keyword (buffer-substring-no-properties |
|
953 (match-beginning 1) (match-end 1)))) |
|
954 (if (save-excursion |
|
955 (beginning-of-line) |
|
956 (looking-at "^\\s-*$")) |
|
957 (indent-according-to-mode) |
|
958 (octave-reindent-then-newline-and-indent)) |
|
959 (insert (car (reverse |
|
960 (assoc bb-keyword |
|
961 octave-block-match-alist)))) |
|
962 (octave-reindent-then-newline-and-indent) |
|
963 t) |
|
964 (error (message "No block to close found"))))) |
|
965 |
|
966 (defun octave-blink-matching-block-open () |
|
967 "Blink the matching Octave begin block keyword. |
|
968 If point is right after an Octave else or end type block keyword, move |
|
969 cursor momentarily to the corresponding begin keyword. |
|
970 Signal an error if the keywords are incompatible." |
|
971 (interactive) |
|
972 (let (bb-keyword bb-arg eb-keyword pos eol) |
|
973 (if (and (octave-not-in-string-or-comment-p) |
|
974 (looking-at "\\>") |
|
975 (save-excursion |
|
976 (skip-syntax-backward "w") |
|
977 (looking-at octave-block-else-or-end-regexp))) |
|
978 (save-excursion |
|
979 (cond |
|
980 ((match-end 1) |
|
981 (setq eb-keyword |
|
982 (buffer-substring-no-properties |
|
983 (match-beginning 1) (match-end 1))) |
|
984 (octave-backward-up-block 1)) |
|
985 ((match-end 2) |
|
986 (setq eb-keyword |
|
987 (buffer-substring-no-properties |
|
988 (match-beginning 2) (match-end 2))) |
|
989 (octave-backward-block))) |
|
990 (setq pos (match-end 0) |
|
991 bb-keyword |
|
992 (buffer-substring-no-properties |
|
993 (match-beginning 0) pos) |
|
994 pos (+ pos 1) |
4570
|
995 eol (line-end-position) |
2617
|
996 bb-arg |
|
997 (save-excursion |
|
998 (save-restriction |
|
999 (goto-char pos) |
|
1000 (while (and (skip-syntax-forward "^<" eol) |
|
1001 (octave-in-string-p) |
|
1002 (not (forward-char 1)))) |
|
1003 (skip-syntax-backward " ") |
|
1004 (buffer-substring-no-properties pos (point))))) |
|
1005 (if (member eb-keyword |
|
1006 (cdr (assoc bb-keyword octave-block-match-alist))) |
|
1007 (progn |
|
1008 (message "Matches `%s %s'" bb-keyword bb-arg) |
|
1009 (if (pos-visible-in-window-p) |
|
1010 (sit-for blink-matching-delay))) |
|
1011 (error "Block keywords `%s' and `%s' do not match" |
|
1012 bb-keyword eb-keyword)))))) |
|
1013 |
|
1014 (defun octave-beginning-of-defun (&optional arg) |
|
1015 "Move backward to the beginning of an Octave function. |
|
1016 With positive ARG, do it that many times. Negative argument -N means |
|
1017 move forward to Nth following beginning of a function. |
|
1018 Returns t unless search stops at the beginning or end of the buffer." |
|
1019 (interactive "p") |
|
1020 (let* ((arg (or arg 1)) |
|
1021 (inc (if (> arg 0) 1 -1)) |
|
1022 (found)) |
|
1023 (and (not (eobp)) |
|
1024 (not (and (> arg 0) (looking-at "\\<function\\>"))) |
|
1025 (skip-syntax-forward "w")) |
|
1026 (while (and (/= arg 0) |
|
1027 (setq found |
|
1028 (re-search-backward "\\<function\\>" nil 'move inc))) |
|
1029 (if (octave-not-in-string-or-comment-p) |
|
1030 (setq arg (- arg inc)))) |
|
1031 (if found |
|
1032 (progn |
|
1033 (and (< inc 0) (goto-char (match-beginning 0))) |
|
1034 t)))) |
|
1035 |
|
1036 (defun octave-end-of-defun (&optional arg) |
|
1037 "Move forward to the end of an Octave function. |
|
1038 With positive ARG, do it that many times. Negative argument -N means |
|
1039 move back to Nth preceding end of a function. |
|
1040 |
|
1041 An end of a function occurs right after the end keyword matching the |
|
1042 `function' keyword that starts the function." |
|
1043 (interactive "p") |
|
1044 (or arg (setq arg 1)) |
|
1045 (and (< arg 0) (skip-syntax-backward "w")) |
5204
|
1046 (and (> arg 0) (skip-syntax-forward "w")) |
2617
|
1047 (if (octave-in-defun-p) |
|
1048 (setq arg (- arg 1))) |
|
1049 (if (= arg 0) (setq arg -1)) |
|
1050 (if (octave-beginning-of-defun (- arg)) |
|
1051 (octave-forward-block))) |
|
1052 |
|
1053 (defun octave-mark-defun () |
|
1054 "Put point at the beginning of this Octave function, mark at its end. |
|
1055 The function marked is the one containing point or following point." |
|
1056 (interactive) |
|
1057 (let ((pos (point))) |
|
1058 (if (or (octave-in-defun-p) |
|
1059 (and (octave-beginning-of-defun -1) |
|
1060 (octave-in-defun-p))) |
|
1061 (progn |
|
1062 (skip-syntax-forward "w") |
|
1063 (octave-beginning-of-defun) |
|
1064 (push-mark (point)) |
|
1065 (octave-end-of-defun) |
|
1066 (exchange-point-and-mark)) |
|
1067 (goto-char pos) |
|
1068 (message "No function to mark found")))) |
5204
|
1069 |
2617
|
1070 |
|
1071 ;;; Filling |
|
1072 (defun octave-auto-fill () |
3083
|
1073 "Perform auto-fill in Octave mode. |
|
1074 Returns nil if no feasible place to break the line could be found, and t |
|
1075 otherwise." |
|
1076 (let (fc give-up) |
|
1077 (if (or (null (setq fc (current-fill-column))) |
|
1078 (save-excursion |
5204
|
1079 (beginning-of-line) |
3083
|
1080 (and auto-fill-inhibit-regexp |
|
1081 (looking-at auto-fill-inhibit-regexp)))) |
|
1082 nil ; Can't do anything |
|
1083 (if (and (not (octave-in-comment-p)) |
|
1084 (> (current-column) fc)) |
|
1085 (setq fc (- fc (+ (length octave-continuation-string) 1)))) |
|
1086 (while (and (not give-up) (> (current-column) fc)) |
|
1087 (let* ((opoint (point)) |
|
1088 (fpoint |
|
1089 (save-excursion |
|
1090 (move-to-column (+ fc 1)) |
|
1091 (skip-chars-backward "^ \t\n") |
|
1092 ;; If we're at the beginning of the line, break after |
|
1093 ;; the first word |
|
1094 (if (bolp) |
|
1095 (re-search-forward "[ \t]" opoint t)) |
|
1096 ;; If we're in a comment line, don't break after the |
|
1097 ;; comment chars |
|
1098 (if (save-excursion |
|
1099 (skip-syntax-backward " <") |
|
1100 (bolp)) |
4570
|
1101 (re-search-forward "[ \t]" (line-end-position) |
3083
|
1102 'move)) |
|
1103 ;; If we're not in a comment line and just ahead the |
|
1104 ;; continuation string, don't break here. |
|
1105 (if (and (not (octave-in-comment-p)) |
|
1106 (looking-at |
|
1107 (concat "\\s-*" |
|
1108 (regexp-quote |
|
1109 octave-continuation-string) |
|
1110 "\\s-*$"))) |
|
1111 (end-of-line)) |
|
1112 (skip-chars-backward " \t") |
|
1113 (point)))) |
|
1114 (if (save-excursion |
|
1115 (goto-char fpoint) |
|
1116 (not (or (bolp) (eolp)))) |
|
1117 (let ((prev-column (current-column))) |
|
1118 (if (save-excursion |
|
1119 (skip-chars-backward " \t") |
|
1120 (= (point) fpoint)) |
|
1121 (progn |
|
1122 (octave-maybe-insert-continuation-string) |
|
1123 (indent-new-comment-line t)) |
|
1124 (save-excursion |
|
1125 (goto-char fpoint) |
|
1126 (octave-maybe-insert-continuation-string) |
|
1127 (indent-new-comment-line t))) |
|
1128 (if (>= (current-column) prev-column) |
|
1129 (setq give-up t))) |
|
1130 (setq give-up t)))) |
|
1131 (not give-up)))) |
2617
|
1132 |
|
1133 (defun octave-fill-paragraph (&optional arg) |
|
1134 "Fill paragraph of Octave code, handling Octave comments." |
6976
|
1135 ;; FIXME: now that the default fill-paragraph takes care of similar issues, |
|
1136 ;; this seems obsolete. --Stef |
2617
|
1137 (interactive "P") |
5204
|
1138 (save-excursion |
2617
|
1139 (let ((end (progn (forward-paragraph) (point))) |
|
1140 (beg (progn |
|
1141 (forward-paragraph -1) |
|
1142 (skip-chars-forward " \t\n") |
|
1143 (beginning-of-line) |
|
1144 (point))) |
|
1145 (cfc (current-fill-column)) |
|
1146 (ind (calculate-octave-indent)) |
|
1147 comment-prefix) |
|
1148 (save-restriction |
|
1149 (goto-char beg) |
|
1150 (narrow-to-region beg end) |
|
1151 (if (listp ind) (setq ind (nth 1 ind))) |
|
1152 (while (not (eobp)) |
|
1153 (condition-case nil |
|
1154 (octave-indent-line ind) |
|
1155 (error nil)) |
|
1156 (if (and (> ind 0) |
|
1157 (not |
|
1158 (save-excursion |
|
1159 (beginning-of-line) |
|
1160 (looking-at "^\\s-*\\($\\|\\s<+\\)")))) |
|
1161 (setq ind 0)) |
|
1162 (move-to-column cfc) |
|
1163 ;; First check whether we need to combine non-empty comment lines |
|
1164 (if (and (< (current-column) cfc) |
|
1165 (octave-in-comment-p) |
|
1166 (not (save-excursion |
|
1167 (beginning-of-line) |
|
1168 (looking-at "^\\s-*\\s<+\\s-*$")))) |
|
1169 ;; This is a nonempty comment line which does not extend |
5204
|
1170 ;; past the fill column. If it is followed by a nonempty |
2617
|
1171 ;; comment line with the same comment prefix, try to |
|
1172 ;; combine them, and repeat this until either we reach the |
|
1173 ;; fill-column or there is nothing more to combine. |
|
1174 (progn |
|
1175 ;; Get the comment prefix |
|
1176 (save-excursion |
|
1177 (beginning-of-line) |
|
1178 (while (and (re-search-forward "\\s<+") |
|
1179 (not (octave-in-comment-p)))) |
|
1180 (setq comment-prefix (match-string 0))) |
|
1181 ;; And keep combining ... |
|
1182 (while (and (< (current-column) cfc) |
|
1183 (save-excursion |
|
1184 (forward-line 1) |
|
1185 (and (looking-at |
|
1186 (concat "^\\s-*" |
|
1187 comment-prefix |
|
1188 "\\S<")) |
|
1189 (not (looking-at |
|
1190 (concat "^\\s-*" |
|
1191 comment-prefix |
|
1192 "\\s-*$")))))) |
|
1193 (delete-char 1) |
|
1194 (re-search-forward comment-prefix) |
|
1195 (delete-region (match-beginning 0) (match-end 0)) |
|
1196 (fixup-whitespace) |
|
1197 (move-to-column cfc)))) |
3083
|
1198 ;; We might also try to combine continued code lines> Perhaps |
|
1199 ;; some other time ... |
2617
|
1200 (skip-chars-forward "^ \t\n") |
|
1201 (delete-horizontal-space) |
|
1202 (if (or (< (current-column) cfc) |
|
1203 (and (= (current-column) cfc) (eolp))) |
|
1204 (forward-line 1) |
|
1205 (if (not (eolp)) (insert " ")) |
3083
|
1206 (or (octave-auto-fill) |
|
1207 (forward-line 1))))) |
2617
|
1208 t))) |
|
1209 |
|
1210 |
|
1211 ;;; Completions |
|
1212 (defun octave-initialize-completions () |
|
1213 "Create an alist for Octave completions." |
|
1214 (if octave-completion-alist |
|
1215 () |
|
1216 (setq octave-completion-alist |
|
1217 (mapcar '(lambda (var) (cons var var)) |
|
1218 (append octave-reserved-words |
|
1219 octave-text-functions |
|
1220 octave-variables))))) |
|
1221 |
|
1222 (defun octave-complete-symbol () |
|
1223 "Perform completion on Octave symbol preceding point. |
|
1224 Compare that symbol against Octave's reserved words and builtin |
|
1225 variables." |
|
1226 ;; This code taken from lisp-complete-symbol |
|
1227 (interactive) |
|
1228 (let* ((end (point)) |
|
1229 (beg (save-excursion (backward-sexp 1) (point))) |
|
1230 (string (buffer-substring-no-properties beg end)) |
|
1231 (completion (try-completion string octave-completion-alist))) |
|
1232 (cond ((eq completion t)) ; ??? |
|
1233 ((null completion) |
|
1234 (message "Can't find completion for \"%s\"" string) |
|
1235 (ding)) |
|
1236 ((not (string= string completion)) |
|
1237 (delete-region beg end) |
|
1238 (insert completion)) |
|
1239 (t |
|
1240 (let ((list (all-completions string octave-completion-alist)) |
|
1241 (conf (current-window-configuration))) |
|
1242 ;; Taken from comint.el |
5204
|
1243 (message "Making completion list...") |
2617
|
1244 (with-output-to-temp-buffer "*Completions*" |
6976
|
1245 (display-completion-list list string)) |
2617
|
1246 (message "Hit space to flush") |
|
1247 (let (key first) |
|
1248 (if (save-excursion |
|
1249 (set-buffer (get-buffer "*Completions*")) |
|
1250 (setq key (read-key-sequence nil) |
|
1251 first (aref key 0)) |
|
1252 (and (consp first) (consp (event-start first)) |
|
1253 (eq (window-buffer (posn-window (event-start |
|
1254 first))) |
|
1255 (get-buffer "*Completions*")) |
|
1256 (eq (key-binding key) 'mouse-choose-completion))) |
|
1257 (progn |
|
1258 (mouse-choose-completion first) |
|
1259 (set-window-configuration conf)) |
|
1260 (if (eq first ?\ ) |
|
1261 (set-window-configuration conf) |
|
1262 (setq unread-command-events |
|
1263 (listify-key-sequence key)))))))))) |
5204
|
1264 |
2617
|
1265 |
|
1266 ;;; Electric characters && friends |
|
1267 (defun octave-reindent-then-newline-and-indent () |
|
1268 "Reindent current Octave line, insert newline, and indent the new line. |
|
1269 If Abbrev mode is on, expand abbrevs first." |
|
1270 (interactive) |
|
1271 (if abbrev-mode (expand-abbrev)) |
|
1272 (if octave-blink-matching-block |
|
1273 (octave-blink-matching-block-open)) |
|
1274 (save-excursion |
|
1275 (delete-region (point) (progn (skip-chars-backward " \t") (point))) |
|
1276 (indent-according-to-mode)) |
|
1277 (insert "\n") |
|
1278 (indent-according-to-mode)) |
|
1279 |
|
1280 (defun octave-electric-semi () |
|
1281 "Insert a semicolon in Octave mode. |
3083
|
1282 Maybe expand abbrevs and blink matching block open keywords. |
6976
|
1283 Reindent the line of `octave-auto-indent' is non-nil. |
3083
|
1284 Insert a newline if `octave-auto-newline' is non-nil." |
2617
|
1285 (interactive) |
|
1286 (if (not (octave-not-in-string-or-comment-p)) |
|
1287 (insert ";") |
|
1288 (if abbrev-mode (expand-abbrev)) |
|
1289 (if octave-blink-matching-block |
|
1290 (octave-blink-matching-block-open)) |
3069
|
1291 (if octave-auto-indent |
|
1292 (indent-according-to-mode)) |
2617
|
1293 (insert ";") |
|
1294 (if octave-auto-newline |
|
1295 (newline-and-indent)))) |
|
1296 |
|
1297 (defun octave-electric-space () |
|
1298 "Insert a space in Octave mode. |
3083
|
1299 Maybe expand abbrevs and blink matching block open keywords. |
6976
|
1300 Reindent the line of `octave-auto-indent' is non-nil." |
2617
|
1301 (interactive) |
|
1302 (setq last-command-char ? ) |
5557
|
1303 (if (and octave-auto-indent |
|
1304 (not (octave-not-in-string-or-comment-p))) |
2617
|
1305 (progn |
|
1306 (indent-according-to-mode) |
|
1307 (self-insert-command 1)) |
|
1308 (if abbrev-mode (expand-abbrev)) |
|
1309 (if octave-blink-matching-block |
|
1310 (octave-blink-matching-block-open)) |
3069
|
1311 (if (and octave-auto-indent |
|
1312 (save-excursion |
|
1313 (skip-syntax-backward " ") |
|
1314 (not (bolp)))) |
2617
|
1315 (indent-according-to-mode)) |
|
1316 (self-insert-command 1))) |
|
1317 |
|
1318 (defun octave-abbrev-start () |
|
1319 "Start entering an Octave abbreviation. |
|
1320 If Abbrev mode is turned on, typing ` (grave accent) followed by ? or |
|
1321 \\[help-command] lists all Octave abbrevs. Any other key combination is |
|
1322 executed normally. |
|
1323 Note that all Octave mode abbrevs start with a grave accent." |
|
1324 (interactive) |
|
1325 (if (not abbrev-mode) |
|
1326 (self-insert-command 1) |
|
1327 (let (c) |
|
1328 (insert last-command-char) |
3225
|
1329 (if (if octave-xemacs-p |
|
1330 (or (eq (event-to-character (setq c (next-event))) ??) |
|
1331 (eq (event-to-character c) help-char)) |
|
1332 (or (eq (setq c (read-event)) ??) |
|
1333 (eq c help-char))) |
|
1334 (let ((abbrev-table-name-list '(octave-abbrev-table))) |
2617
|
1335 (list-abbrevs)) |
|
1336 (setq unread-command-events (list c)))))) |
|
1337 |
|
1338 (defun octave-insert-defun (name args vals) |
|
1339 "Insert an Octave function skeleton. |
|
1340 Prompt for the function's name, arguments and return values (to be |
|
1341 entered without parens)." |
|
1342 (interactive |
|
1343 (list |
|
1344 (read-from-minibuffer "Function name: " |
|
1345 (substring (buffer-name) 0 -2)) |
|
1346 (read-from-minibuffer "Arguments: ") |
|
1347 (read-from-minibuffer "Return values: "))) |
|
1348 (let ((string (format "%s %s (%s)" |
|
1349 (cond |
|
1350 ((string-equal vals "") |
|
1351 vals) |
|
1352 ((string-match "[ ,]" vals) |
|
1353 (concat " [" vals "] =")) |
|
1354 (t |
|
1355 (concat " " vals " ="))) |
|
1356 name |
|
1357 args)) |
|
1358 (prefix octave-block-comment-start)) |
|
1359 (if (not (bobp)) (newline)) |
|
1360 (insert "function" string) |
|
1361 (indent-according-to-mode) |
|
1362 (newline 2) |
|
1363 (insert prefix "usage: " string) |
5204
|
1364 (reindent-then-newline-and-indent) |
2617
|
1365 (insert prefix) |
5204
|
1366 (reindent-then-newline-and-indent) |
2617
|
1367 (insert prefix) |
|
1368 (indent-according-to-mode) |
|
1369 (save-excursion |
|
1370 (newline 2) |
|
1371 (insert "endfunction") |
|
1372 (indent-according-to-mode)))) |
5204
|
1373 |
2617
|
1374 |
|
1375 ;;; Menu |
|
1376 (defun octave-add-octave-menu () |
6976
|
1377 "Add the `Octave' menu to the menu bar in Octave mode." |
5204
|
1378 (require 'easymenu) |
2617
|
1379 (easy-menu-define octave-mode-menu-map octave-mode-map |
|
1380 "Menu keymap for Octave mode." octave-mode-menu) |
|
1381 (easy-menu-add octave-mode-menu-map octave-mode-map)) |
|
1382 |
|
1383 |
|
1384 ;;; Communication with the inferior Octave process |
|
1385 (defun octave-kill-process () |
|
1386 "Kill inferior Octave process and its buffer." |
|
1387 (interactive) |
|
1388 (if inferior-octave-process |
|
1389 (progn |
|
1390 (process-send-string inferior-octave-process "quit;\n") |
|
1391 (accept-process-output inferior-octave-process))) |
|
1392 (if inferior-octave-buffer |
|
1393 (kill-buffer inferior-octave-buffer))) |
|
1394 |
|
1395 (defun octave-show-process-buffer () |
|
1396 "Make sure that `inferior-octave-buffer' is displayed." |
|
1397 (interactive) |
|
1398 (if (get-buffer inferior-octave-buffer) |
|
1399 (display-buffer inferior-octave-buffer) |
|
1400 (message "No buffer named %s" inferior-octave-buffer))) |
|
1401 |
|
1402 (defun octave-hide-process-buffer () |
|
1403 "Delete all windows that display `inferior-octave-buffer'." |
|
1404 (interactive) |
|
1405 (if (get-buffer inferior-octave-buffer) |
|
1406 (delete-windows-on inferior-octave-buffer) |
|
1407 (message "No buffer named %s" inferior-octave-buffer))) |
|
1408 |
|
1409 (defun octave-send-region (beg end) |
|
1410 "Send current region to the inferior Octave process." |
|
1411 (interactive "r") |
5204
|
1412 (inferior-octave t) |
2617
|
1413 (let ((proc inferior-octave-process) |
|
1414 (string (buffer-substring-no-properties beg end)) |
|
1415 line) |
|
1416 (save-excursion |
|
1417 (set-buffer inferior-octave-buffer) |
|
1418 (setq inferior-octave-output-list nil) |
|
1419 (while (not (string-equal string "")) |
|
1420 (if (string-match "\n" string) |
|
1421 (setq line (substring string 0 (match-beginning 0)) |
|
1422 string (substring string (match-end 0))) |
|
1423 (setq line string string "")) |
|
1424 (setq inferior-octave-receive-in-progress t) |
|
1425 (inferior-octave-send-list-and-digest (list (concat line "\n"))) |
|
1426 (while inferior-octave-receive-in-progress |
|
1427 (accept-process-output proc)) |
|
1428 (insert-before-markers |
|
1429 (mapconcat 'identity |
|
1430 (append |
|
1431 (if octave-send-echo-input (list line) (list "")) |
|
1432 (mapcar 'inferior-octave-strip-ctrl-g |
|
1433 inferior-octave-output-list) |
|
1434 (list inferior-octave-output-string)) |
|
1435 "\n"))))) |
|
1436 (if octave-send-show-buffer |
|
1437 (display-buffer inferior-octave-buffer))) |
|
1438 |
|
1439 (defun octave-send-block () |
5204
|
1440 "Send current Octave block to the inferior Octave process." |
2617
|
1441 (interactive) |
|
1442 (save-excursion |
|
1443 (octave-mark-block) |
|
1444 (octave-send-region (point) (mark)))) |
|
1445 |
|
1446 (defun octave-send-defun () |
|
1447 "Send current Octave function to the inferior Octave process." |
|
1448 (interactive) |
|
1449 (save-excursion |
|
1450 (octave-mark-defun) |
|
1451 (octave-send-region (point) (mark)))) |
|
1452 |
|
1453 (defun octave-send-line (&optional arg) |
|
1454 "Send current Octave code line to the inferior Octave process. |
|
1455 With positive prefix ARG, send that many lines. |
|
1456 If `octave-send-line-auto-forward' is non-nil, go to the next unsent |
|
1457 code line." |
|
1458 (interactive "P") |
|
1459 (or arg (setq arg 1)) |
|
1460 (if (> arg 0) |
|
1461 (let (beg end) |
|
1462 (beginning-of-line) |
|
1463 (setq beg (point)) |
|
1464 (octave-next-code-line (- arg 1)) |
|
1465 (end-of-line) |
|
1466 (setq end (point)) |
|
1467 (if octave-send-line-auto-forward |
|
1468 (octave-next-code-line 1)) |
|
1469 (octave-send-region beg end)))) |
|
1470 |
|
1471 (defun octave-eval-print-last-sexp () |
|
1472 "Evaluate Octave sexp before point and print value into current buffer." |
|
1473 (interactive) |
|
1474 (inferior-octave t) |
|
1475 (let ((standard-output (current-buffer)) |
|
1476 (print-escape-newlines nil) |
|
1477 (opoint (point))) |
|
1478 (terpri) |
5204
|
1479 (prin1 |
2617
|
1480 (save-excursion |
|
1481 (forward-sexp -1) |
|
1482 (inferior-octave-send-list-and-digest |
|
1483 (list (concat (buffer-substring-no-properties (point) opoint) |
|
1484 "\n"))) |
|
1485 (mapconcat 'identity inferior-octave-output-list "\n"))) |
|
1486 (terpri))) |
|
1487 |
|
1488 ;;; Bug reporting |
|
1489 (defun octave-submit-bug-report () |
|
1490 "Submit a bug report on the Emacs Octave package via mail." |
|
1491 (interactive) |
|
1492 (require 'reporter) |
|
1493 (and |
|
1494 (y-or-n-p "Do you want to submit a bug report? ") |
|
1495 (reporter-submit-bug-report |
|
1496 octave-maintainer-address |
|
1497 (concat "Emacs version " emacs-version) |
|
1498 (list |
3069
|
1499 'octave-auto-indent |
2617
|
1500 'octave-auto-newline |
|
1501 'octave-blink-matching-block |
|
1502 'octave-block-offset |
|
1503 'octave-comment-char |
|
1504 'octave-continuation-offset |
|
1505 'octave-continuation-string |
|
1506 'octave-help-files |
|
1507 'octave-send-echo-input |
|
1508 'octave-send-line-auto-forward |
|
1509 'octave-send-show-buffer)))) |
|
1510 |
|
1511 ;;; provide ourself |
|
1512 |
|
1513 (provide 'octave-mod) |
|
1514 |
6976
|
1515 ;; arch-tag: 05f1ce09-be87-4c00-803e-4919ffa26c23 |
2617
|
1516 ;;; octave-mod.el ends here |