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1 ;;; fortran.el --- Fortran mode for GNU Emacs
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2
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3 ;;; Copyright (c) 1986, 1993, 1994, 1995 Free Software Foundation, Inc.
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4
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5 ;; Author: Michael D. Prange <prange@erl.mit.edu>
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6 ;; Maintainer: bug-fortran-mode@erl.mit.edu
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7 ;; Version 1.30.6 (July 27, 1995)
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8 ;; Keywords: languages
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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, 675 Mass Ave, Cambridge, MA 02139, USA.
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25
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26 ;;; Synched up with: FSF 19.30.
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27
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28 ;;; Commentary:
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29
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30 ;; Fortran mode has been upgraded and is now maintained by Stephen A. Wood
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31 ;; (saw@cebaf.gov). It now will use either fixed format continuation line
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32 ;; markers (character in 6th column), or tab format continuation line style
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33 ;; (digit after a TAB character.) A auto-fill mode has been added to
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34 ;; automatically wrap fortran lines that get too long.
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35
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36 ;; We acknowledge many contributions and valuable suggestions by
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37 ;; Lawrence R. Dodd, Ralf Fassel, Ralph Finch, Stephen Gildea,
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38 ;; Dr. Anil Gokhale, Ulrich Mueller, Mark Neale, Eric Prestemon,
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39 ;; Gary Sabot and Richard Stallman.
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40
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41 ;;; This file may be used with GNU Emacs version 18.xx if the following
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42 ;;; variable and function substitutions are made.
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43 ;;; Replace:
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44 ;;; frame-width with screen-width
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45 ;;; auto-fill-function with auto-fill-hook
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46 ;;; comment-indent-function with comment-indent-hook
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47 ;;; (setq unread-command-events (list c)) with (setq unread-command-char c)
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48
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49 ;;; Bugs to bug-fortran-mode@erl.mit.edu
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50
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51 (defconst fortran-mode-version "version 1.30.6")
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52
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53 ;;; Code:
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54
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55 ;;;###autoload
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56 (defvar fortran-tab-mode-default nil
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57 "*Default tabbing/carriage control style for empty files in Fortran mode.
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58 A value of t specifies tab-digit style of continuation control.
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59 A value of nil specifies that continuation lines are marked
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60 with a character in column 6.")
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61
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62 ;; Buffer local, used to display mode line.
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63 (defvar fortran-tab-mode-string nil
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64 "String to appear in mode line when TAB format mode is on.")
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65
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66 (defvar fortran-do-indent 3
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67 "*Extra indentation applied to DO blocks.")
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68
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69 (defvar fortran-if-indent 3
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70 "*Extra indentation applied to IF blocks.")
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71
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72 (defvar fortran-structure-indent 3
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73 "*Extra indentation applied to STRUCTURE, UNION, MAP and INTERFACE blocks.")
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74
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75 (defvar fortran-continuation-indent 5
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76 "*Extra indentation applied to Fortran continuation lines.")
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77
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78 (defvar fortran-comment-indent-style 'fixed
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79 "*nil forces comment lines not to be touched,
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80 'fixed makes fixed comment indentation to `fortran-comment-line-extra-indent'
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81 columns beyond `fortran-minimum-statement-indent-fixed' (for
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82 `indent-tabs-mode' of nil) or `fortran-minimum-statement-indent-tab' (for
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83 `indent-tabs-mode' of t), and 'relative indents to current
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84 Fortran indentation plus `fortran-comment-line-extra-indent'.")
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85
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86 (defvar fortran-comment-line-extra-indent 0
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87 "*Amount of extra indentation for text within full-line comments.")
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88
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89 (defvar comment-line-start nil
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90 "*Delimiter inserted to start new full-line comment.")
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91
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92 (defvar comment-line-start-skip nil
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93 "*Regexp to match the start of a full-line comment.")
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94
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95 (defvar fortran-minimum-statement-indent-fixed 6
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96 "*Minimum statement indentation for fixed format continuation style.")
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97
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98 (defvar fortran-minimum-statement-indent-tab (max tab-width 6)
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99 "*Minimum statement indentation for TAB format continuation style.")
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100
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101 ;; Note that this is documented in the v18 manuals as being a string
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102 ;; of length one rather than a single character.
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103 ;; The code in this file accepts either format for compatibility.
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104 (defvar fortran-comment-indent-char " "
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105 "*Single-character string inserted for Fortran comment indentation.
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106 Normally a space.")
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107
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108 (defvar fortran-line-number-indent 1
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109 "*Maximum indentation for Fortran line numbers.
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110 5 means right-justify them within their five-column field.")
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111
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112 (defvar fortran-check-all-num-for-matching-do nil
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113 "*Non-nil causes all numbered lines to be treated as possible DO loop ends.")
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114
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115 (defvar fortran-blink-matching-if nil
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116 "*Non-nil causes \\[fortran-indent-line] on ENDIF statement to blink on matching IF.
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117 Also, from an ENDDO statement blink on matching DO [WHILE] statement.")
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118
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119 (defvar fortran-continuation-string "$"
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120 "*Single-character string used for Fortran continuation lines.
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121 In fixed format continuation style, this character is inserted in
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122 column 6 by \\[fortran-split-line] to begin a continuation line.
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123 Also, if \\[fortran-indent-line] finds this at the beginning of a line, it will
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124 convert the line into a continuation line of the appropriate style.
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125 Normally $.")
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126
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127 (defvar fortran-comment-region "c$$$"
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128 "*String inserted by \\[fortran-comment-region]\
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129 at start of each line in region.")
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130
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131 (defvar fortran-electric-line-number t
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132 "*Non-nil causes line number digits to be moved to the correct column as\
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133 typed.")
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134
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135 (defvar fortran-startup-message t
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136 "*Non-nil displays a startup message when Fortran mode is first called.")
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137
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138 (defvar fortran-column-ruler-fixed
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139 "0 4 6 10 20 30 40 5\
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140 \0 60 70\n\
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141 \[ ]|{ | | | | | | | | \
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142 \| | | | |}\n"
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143 "*String displayed above current line by \\[fortran-column-ruler].
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144 This variable used in fixed format mode.")
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145
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146 (defvar fortran-column-ruler-tab
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147 "0 810 20 30 40 5\
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148 \0 60 70\n\
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149 \[ ]| { | | | | | | | | \
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150 \| | | | |}\n"
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151 "*String displayed above current line by \\[fortran-column-ruler].
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152 This variable used in TAB format mode.")
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153
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154 (defconst bug-fortran-mode "bug-fortran-mode@erl.mit.edu"
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155 "Address of mailing list for Fortran mode bugs.")
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156
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157 (defvar fortran-mode-syntax-table nil
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158 "Syntax table in use in Fortran mode buffers.")
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159
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160 (defvar fortran-analyze-depth 100
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161 "Number of lines to scan to determine whether to use fixed or TAB format\
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162 style.")
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163
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164 (defvar fortran-break-before-delimiters t
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165 "*Non-nil causes `fortran-fill' to break lines before delimiters.")
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166
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167 (if fortran-mode-syntax-table
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168 ()
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169 (setq fortran-mode-syntax-table (make-syntax-table))
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170 (modify-syntax-entry ?\; "w" fortran-mode-syntax-table)
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171 (modify-syntax-entry ?\r " " fortran-mode-syntax-table)
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172 (modify-syntax-entry ?+ "." fortran-mode-syntax-table)
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173 (modify-syntax-entry ?- "." fortran-mode-syntax-table)
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174 (modify-syntax-entry ?= "." fortran-mode-syntax-table)
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175 ;;(modify-syntax-entry ?* "." fortran-mode-syntax-table)
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176 (modify-syntax-entry ?/ "." fortran-mode-syntax-table)
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177 (modify-syntax-entry ?\' "\"" fortran-mode-syntax-table)
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178 (modify-syntax-entry ?\" "\"" fortran-mode-syntax-table)
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179 (modify-syntax-entry ?\\ "/" fortran-mode-syntax-table)
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180 (modify-syntax-entry ?. "w" fortran-mode-syntax-table)
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181 (modify-syntax-entry ?_ "w" fortran-mode-syntax-table)
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182 (modify-syntax-entry ?\! "<" fortran-mode-syntax-table)
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183 ;;(modify-syntax-entry ?\n ">" fortran-mode-syntax-table)
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184
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185 ;; XEmacs: an attempt to make font-lock understand fortran comments.
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186 (modify-syntax-entry ?\n "> 1" fortran-mode-syntax-table)
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187 (modify-syntax-entry ?* ". 2" fortran-mode-syntax-table)
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188 (modify-syntax-entry ?c "w 2" fortran-mode-syntax-table)
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189 (modify-syntax-entry ?C "w 2" fortran-mode-syntax-table)
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190
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191 )
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192
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193 ;; Comments are real pain in Fortran because there is no way to represent the
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194 ;; standard comment syntax in an Emacs syntax table (we can for VAX-style).
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195 ;; Therefore an unmatched quote in a standard comment will throw fontification
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196 ;; off on the wrong track. So we do syntactic fontification with regexps.
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197
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198 ;; Regexps done by simon@gnu with help from Ulrik Dickow <dickow@nbi.dk> and
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199 ;; probably others Si's forgotten about (sorry).
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200
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201 (defconst fortran-font-lock-keywords-1 nil
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202 "Subdued level highlighting for Fortran mode.")
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203
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204 (defconst fortran-font-lock-keywords-2 nil
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205 "Medium level highlighting for Fortran mode.")
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206
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207 (defconst fortran-font-lock-keywords-3 nil
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208 "Gaudy level highlighting for Fortran mode.")
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209
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210 (let ((comment-chars "c!*")
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211 (fortran-type-types
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212 ; (make-regexp
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213 ; (let ((simple-types '("character" "byte" "integer" "logical"
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214 ; "none" "real" "complex"
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215 ; "double[ \t]*precision" "double[ \t]*complex"))
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216 ; (structured-types '("structure" "union" "map"))
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217 ; (other-types '("record" "dimension" "parameter" "common" "save"
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218 ; "external" "intrinsic" "data" "equivalence")))
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219 ; (append
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220 ; (mapcar (lambda (x) (concat "implicit[ \t]*" x)) simple-types)
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221 ; simple-types
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222 ; (mapcar (lambda (x) (concat "end[ \t]*" x)) structured-types)
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223 ; structured-types
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224 ; other-types)))
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225 (concat "byte\\|c\\(haracter\\|om\\(mon\\|plex\\)\\)\\|"
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226 "d\\(ata\\|imension\\|ouble"
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227 "[ \t]*\\(complex\\|precision\\)\\)\\|"
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228 "e\\(nd[ \t]*\\(map\\|structure\\|union\\)\\|"
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229 "quivalence\\|xternal\\)\\|"
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230 "i\\(mplicit[ \t]*\\(byte\\|"
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231 "c\\(haracter\\|omplex\\)\\|"
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232 "double[ \t]*\\(complex\\|precision\\)\\|"
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233 "integer\\|logical\\|none\\|real\\)\\|"
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234 "nt\\(eger\\|rinsic\\)\\)\\|"
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235 "logical\\|map\\|none\\|parameter\\|re\\(al\\|cord\\)\\|"
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236 "s\\(ave\\|tructure\\)\\|union"))
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237 (fortran-keywords
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238 ; ("continue" "format" "end" "enddo" "if" "then" "else" "endif"
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239 ; "elseif" "while" "inquire" "stop" "return" "include" "open"
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240 ; "close" "read" "write" "format" "print")
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241 (concat "c\\(lose\\|ontinue\\)\\|"
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242 "e\\(lse\\(\\|if\\)\\|nd\\(\\|do\\|if\\)\\)\\|format\\|"
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243 "i\\(f\\|n\\(clude\\|quire\\)\\)\\|open\\|print\\|"
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244 "re\\(ad\\|turn\\)\\|stop\\|then\\|w\\(hile\\|rite\\)"))
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245 (fortran-logicals
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246 ; ("and" "or" "not" "lt" "le" "eq" "ge" "gt" "ne" "true" "false")
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247 "and\\|eq\\|false\\|g[et]\\|l[et]\\|n\\(e\\|ot\\)\\|or\\|true"))
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248
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249 (setq fortran-font-lock-keywords-1
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250 (list
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251 ;;
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252 ;; Fontify syntactically (assuming strings cannot be quoted or span lines).
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253 (cons (concat "^[" comment-chars "].*") 'font-lock-comment-face)
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254 '(fortran-match-!-comment . font-lock-comment-face)
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255 (list (concat "^[^" comment-chars "\t\n]" (make-string 71 ?.) "\\(.*\\)")
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256 '(1 font-lock-comment-face))
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257 '("'[^'\n]*'?" . font-lock-string-face)
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258 ;;
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259 ;; Program, subroutine and function declarations, plus calls.
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260 (list (concat "\\<\\(block[ \t]*data\\|call\\|entry\\|function\\|"
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261 "program\\|subroutine\\)\\>[ \t]*\\(\\sw+\\)?")
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262 '(1 font-lock-keyword-face)
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263 '(2 font-lock-function-name-face nil t))))
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264
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265 (setq fortran-font-lock-keywords-2
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266 (append fortran-font-lock-keywords-1
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267 (list
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268 ;;
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269 ;; Fontify all type specifiers (must be first; see below).
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270 (cons (concat "\\<\\(" fortran-type-types "\\)\\>") 'font-lock-type-face)
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271 ;;
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272 ;; Fontify all builtin keywords (except logical, do and goto; see below).
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273 (concat "\\<\\(" fortran-keywords "\\)\\>")
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274 ;;
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275 ;; Fontify all builtin operators.
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276 (concat "\\.\\(" fortran-logicals "\\)\\.")
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277 ;;
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278 ;; Fontify do/goto keywords and targets, and goto tags.
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279 (list "\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)?"
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280 '(1 font-lock-keyword-face)
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281 '(2 font-lock-reference-face nil t))
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282 (cons "^ *\\([0-9]+\\)" 'font-lock-reference-face))))
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283
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284 (setq fortran-font-lock-keywords-3
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285 (append
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286 ;;
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287 ;; The list `fortran-font-lock-keywords-1'.
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288 fortran-font-lock-keywords-1
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289 ;;
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290 ;; Fontify all type specifiers plus their declared items.
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291 (list
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292 (list (concat "\\<\\(" fortran-type-types "\\)\\>[ \t(/]*\\(*\\)?")
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293 ;; Fontify the type specifier.
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294 '(1 font-lock-type-face)
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295 ;; Fontify each declaration item (or just the /.../ block name).
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296 '(font-lock-match-c++-style-declaration-item-and-skip-to-next
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297 ;; Start after any *(...) expression.
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298 (and (match-beginning 15) (forward-sexp 1))
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299 ;; No need to clean up.
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300 nil
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301 ;; Fontify as a variable name, functions are fontified elsewhere.
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302 (1 font-lock-variable-name-face nil t))))
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303 ;;
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304 ;; Things extra to `fortran-font-lock-keywords-3' (must be done first).
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305 (list
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306 ;;
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307 ;; Fontify goto-like `err=label'/`end=label' in read/write statements.
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308 '(", *\\(e\\(nd\\|rr\\)\\)\\> *\\(= *\\([0-9]+\\)\\)?"
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309 (1 font-lock-keyword-face) (4 font-lock-reference-face nil t))
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310 ;;
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311 ;; Highlight standard continuation character and in a TAB-formatted line.
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312 '("^ \\([^ 0]\\)" 1 font-lock-string-face)
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313 '("^\t\\([1-9]\\)" 1 font-lock-string-face))
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314 ;;
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315 ;; The list `fortran-font-lock-keywords-2' less that for types (see above).
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316 (cdr (nthcdr (length fortran-font-lock-keywords-1)
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317 fortran-font-lock-keywords-2))))
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318 )
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319
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320 (defvar fortran-font-lock-keywords fortran-font-lock-keywords-1
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321 "Default expressions to highlight in Fortran mode.")
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322
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323 (put 'fortran-mode 'font-lock-defaults '((fortran-font-lock-keywords
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324 fortran-font-lock-keywords-1
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325 fortran-font-lock-keywords-2
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326 fortran-font-lock-keywords-3)
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327 t t ((?/ . "$/"))))
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328
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329 ;; Our previous version.
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330
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331 ;(defconst fortran-font-lock-keywords-1
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332 ; (purecopy
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333 ; (list
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334 ; ;; fontify comments
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335 ; '("^[cC*].*$" . font-lock-comment-face)
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336 ; ;;
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337 ; ;; fontify preprocessor directives.
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338 ; '("^#[ \t]*[a-z]+" . font-lock-preprocessor-face)
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339 ; ;;
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340 ; ;; fontify names being defined.
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341 ; '("^#[ \t]*\\(define\\|undef\\)[ \t]+\\(\\(\\sw\\|\\s_\\)+\\)" 2
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342 ; font-lock-function-name-face)
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343 ; ;;
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344 ; ;; fontify other preprocessor lines.
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345 ; '("^#[ \t]*\\(if\\|ifn?def\\|elif\\)[ \t]+\\([^\n]+\\)"
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346 ; 2 font-lock-function-name-face t)
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347
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348 ; ;; Subroutine and function declarations
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349 ; '("^[ \t]*subroutine.*$" . font-lock-function-name-face)
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350 ; '("^[ \t].*function.*$" . font-lock-function-name-face)
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351 ; '("^[ \t].*program.*$" . font-lock-function-name-face)
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352 ; '("^[ \t].*entry.*$" . font-lock-function-name-face)
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353 ; ))
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354 ; "For consideration as a value of `fortran-font-lock-keywords'.
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355 ;This does fairly subdued highlighting of comments and function names.")
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356
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357 ;(defconst fortran-font-lock-keywords-2
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358 ; (purecopy
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359 ; (append fortran-font-lock-keywords-1
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360 ; (list
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361 ; ;; Variable declarations
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362 ; '("^[ \t]*\\(\\(integer\\|logical\\|real\\|complex\\|double[ \t]*precision\\|character\\|parameter\\)[^ \t]*\\)"
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363 ; 1 font-lock-keyword-face)
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364 ; ;; Common blocks, external, etc
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365 ; '("^[ \t]*\\(common\\|save\\|external\\|intrinsic\\|data\\)" 1 font-lock-keyword-face)
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366 ; ;; Other keywords
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367 ; '("^[ \t]*[0-9]*[ \t]*\\(if\\)[ \t]*("
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368 ; 1 font-lock-keyword-face)
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369
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370 ; ;; Then
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371 ; ;; '("^\\(\\([ \t]*[0-9]*[ \t]*\\)\\|\\( [^ ]\\)\\).*[ \t]*\\(then\\)[ \t]*"
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372 ; ;; 4 font-lock-keyword-face)
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373 ; '("\\(then\\)[ \t]*$" 1 font-lock-keyword-face)
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374
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375 ; ;; '("^[ \t]*[0-9]*[ \t]*\\(end[ \t]*if\\)[ \t]*$"
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376 ; '("\\(end[ \t]*if\\)[ \t]*$"
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377 ; 1 font-lock-keyword-face)
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378 ; ;; '("\\(else[ \t]*\\(if\\)?\\)"
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379 ; ;; the below works better <mdb@cdc.noaa.gov>
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380 ; '("^[ \t]*[0-9]*[ \t]*\\(else[ \t]*\\(if\\)?\\)"
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381 ; 1 font-lock-keyword-face)
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382 ; '("^[ \t]*[0-9]*[ \t]*\\(do\\)[ \t]*[0-9]+"
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383 ; 1 font-lock-keyword-face)
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384 ; '("^[ \t]*[0-9]*[ \t]*\\(do\\)[ \t]*[a-z0-9_$]+[ \t]*="
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385 ; 1 font-lock-keyword-face)
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386 ; '("^[ \t]*[0-9]*[ \t]*\\(end[ \t]*do\\)"
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387 ; 1 font-lock-keyword-face)
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388 ; '("^[ \t]*[0-9]+[ \t]*\\(continue\\)" 1 font-lock-keyword-face)
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389 ; '("^[ \t]*[0-9]*[ \t]*\\(call\\)" 1 font-lock-keyword-face)
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390 ; '("^[ \t]*[0-9]*[ \t]*\\(go[ \t]*to\\)" 1 font-lock-keyword-face)
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391
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392 ; '("^[ \t]*[0-9]*[ \t]*\\(open\\|close\\|read\\|write\\|format\\)[ \t]*("
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393 ; 1 font-lock-keyword-face)
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394 ; '("^[ \t]*[0-9]*[ \t]*\\(print\\)[ \t]*[*'0-9]+" 1 font-lock-keyword-face)
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395
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396 ; '("^[ \t]*[0-9]*[ \t]*\\(end\\|return\\)[ \t]*$" 1 font-lock-keyword-face)
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397
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398 ; '("^[ \t]*[0-9]*[ \t]*\\(stop\\)[ \t]*['0-9]*" 1 font-lock-keyword-face)
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399
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400 ; ;; Boolean and relational operations, logical true and false
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|
401 ; '("\\.\\(and\\|or\\|not\\|lt\\|le\\|eq\\|ge\\|gt\\|ne\\|true\\|false\\)\\."
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|
402 ; . font-lock-keyword-face)
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|
|
403 ; )))
|
|
|
404 ; "For consideration as a value of `fortran-font-lock-keywords'.
|
|
|
405 ;This highlights variable types, \"keywords,\" etc.")
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406
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407
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408 (defvar fortran-mode-map ()
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409 "Keymap used in Fortran mode.")
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410 (if fortran-mode-map
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411 ()
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412 (setq fortran-mode-map (make-sparse-keymap))
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413 (define-key fortran-mode-map ";" 'fortran-abbrev-start)
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|
414 (define-key fortran-mode-map "\C-c;" 'fortran-comment-region)
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|
415 (define-key fortran-mode-map "\e\C-a" 'beginning-of-fortran-subprogram)
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|
416 (define-key fortran-mode-map "\e\C-e" 'end-of-fortran-subprogram)
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|
|
417 (define-key fortran-mode-map "\e;" 'fortran-indent-comment)
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|
|
418 (define-key fortran-mode-map "\e\C-h" 'mark-fortran-subprogram)
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|
|
419 (define-key fortran-mode-map "\e\n" 'fortran-split-line)
|
|
|
420 (define-key fortran-mode-map "\n" 'fortran-indent-new-line)
|
|
|
421 (define-key fortran-mode-map "\e\C-q" 'fortran-indent-subprogram)
|
|
|
422 (define-key fortran-mode-map "\C-c\C-w" 'fortran-window-create-momentarily)
|
|
|
423 (define-key fortran-mode-map "\C-c\C-r" 'fortran-column-ruler)
|
|
|
424 (define-key fortran-mode-map "\C-c\C-p" 'fortran-previous-statement)
|
|
|
425 (define-key fortran-mode-map "\C-c\C-n" 'fortran-next-statement)
|
|
|
426 (define-key fortran-mode-map "\t" 'fortran-indent-line)
|
|
|
427 (define-key fortran-mode-map "0" 'fortran-electric-line-number)
|
|
|
428 (define-key fortran-mode-map "1" 'fortran-electric-line-number)
|
|
|
429 (define-key fortran-mode-map "2" 'fortran-electric-line-number)
|
|
|
430 (define-key fortran-mode-map "3" 'fortran-electric-line-number)
|
|
|
431 (define-key fortran-mode-map "4" 'fortran-electric-line-number)
|
|
|
432 (define-key fortran-mode-map "5" 'fortran-electric-line-number)
|
|
|
433 (define-key fortran-mode-map "6" 'fortran-electric-line-number)
|
|
|
434 (define-key fortran-mode-map "7" 'fortran-electric-line-number)
|
|
|
435 (define-key fortran-mode-map "8" 'fortran-electric-line-number)
|
|
|
436 (define-key fortran-mode-map "9" 'fortran-electric-line-number))
|
|
|
437
|
|
|
438 (defvar fortran-mode-abbrev-table nil)
|
|
|
439 (if fortran-mode-abbrev-table
|
|
|
440 ()
|
|
|
441 (let ((ac abbrevs-changed))
|
|
|
442 (define-abbrev-table 'fortran-mode-abbrev-table ())
|
|
|
443 (define-abbrev fortran-mode-abbrev-table ";au" "automatic" nil)
|
|
|
444 (define-abbrev fortran-mode-abbrev-table ";b" "byte" nil)
|
|
|
445 (define-abbrev fortran-mode-abbrev-table ";bd" "block data" nil)
|
|
|
446 (define-abbrev fortran-mode-abbrev-table ";ch" "character" nil)
|
|
|
447 (define-abbrev fortran-mode-abbrev-table ";cl" "close" nil)
|
|
|
448 (define-abbrev fortran-mode-abbrev-table ";c" "continue" nil)
|
|
|
449 (define-abbrev fortran-mode-abbrev-table ";cm" "common" nil)
|
|
|
450 (define-abbrev fortran-mode-abbrev-table ";cx" "complex" nil)
|
|
|
451 (define-abbrev fortran-mode-abbrev-table ";df" "define" nil)
|
|
|
452 (define-abbrev fortran-mode-abbrev-table ";di" "dimension" nil)
|
|
|
453 (define-abbrev fortran-mode-abbrev-table ";do" "double" nil)
|
|
|
454 (define-abbrev fortran-mode-abbrev-table ";dc" "double complex" nil)
|
|
|
455 (define-abbrev fortran-mode-abbrev-table ";dp" "double precision" nil)
|
|
|
456 (define-abbrev fortran-mode-abbrev-table ";dw" "do while" nil)
|
|
|
457 (define-abbrev fortran-mode-abbrev-table ";e" "else" nil)
|
|
|
458 (define-abbrev fortran-mode-abbrev-table ";ed" "enddo" nil)
|
|
|
459 (define-abbrev fortran-mode-abbrev-table ";el" "elseif" nil)
|
|
|
460 (define-abbrev fortran-mode-abbrev-table ";en" "endif" nil)
|
|
|
461 (define-abbrev fortran-mode-abbrev-table ";eq" "equivalence" nil)
|
|
|
462 (define-abbrev fortran-mode-abbrev-table ";ew" "endwhere" nil)
|
|
|
463 (define-abbrev fortran-mode-abbrev-table ";ex" "external" nil)
|
|
|
464 (define-abbrev fortran-mode-abbrev-table ";ey" "entry" nil)
|
|
|
465 (define-abbrev fortran-mode-abbrev-table ";f" "format" nil)
|
|
|
466 (define-abbrev fortran-mode-abbrev-table ";fa" ".false." nil)
|
|
|
467 (define-abbrev fortran-mode-abbrev-table ";fu" "function" nil)
|
|
|
468 (define-abbrev fortran-mode-abbrev-table ";g" "goto" nil)
|
|
|
469 (define-abbrev fortran-mode-abbrev-table ";im" "implicit" nil)
|
|
|
470 (define-abbrev fortran-mode-abbrev-table ";ib" "implicit byte" nil)
|
|
|
471 (define-abbrev fortran-mode-abbrev-table ";ic" "implicit complex" nil)
|
|
|
472 (define-abbrev fortran-mode-abbrev-table ";ich" "implicit character" nil)
|
|
|
473 (define-abbrev fortran-mode-abbrev-table ";ii" "implicit integer" nil)
|
|
|
474 (define-abbrev fortran-mode-abbrev-table ";il" "implicit logical" nil)
|
|
|
475 (define-abbrev fortran-mode-abbrev-table ";ir" "implicit real" nil)
|
|
|
476 (define-abbrev fortran-mode-abbrev-table ";inc" "include" nil)
|
|
|
477 (define-abbrev fortran-mode-abbrev-table ";in" "integer" nil)
|
|
|
478 (define-abbrev fortran-mode-abbrev-table ";intr" "intrinsic" nil)
|
|
|
479 (define-abbrev fortran-mode-abbrev-table ";l" "logical" nil)
|
|
|
480 (define-abbrev fortran-mode-abbrev-table ";n" "namelist" nil)
|
|
|
481 (define-abbrev fortran-mode-abbrev-table ";o" "open" nil) ; was ;op
|
|
|
482 (define-abbrev fortran-mode-abbrev-table ";pa" "parameter" nil)
|
|
|
483 (define-abbrev fortran-mode-abbrev-table ";pr" "program" nil)
|
|
|
484 (define-abbrev fortran-mode-abbrev-table ";ps" "pause" nil)
|
|
|
485 (define-abbrev fortran-mode-abbrev-table ";p" "print" nil)
|
|
|
486 (define-abbrev fortran-mode-abbrev-table ";rc" "record" nil)
|
|
|
487 (define-abbrev fortran-mode-abbrev-table ";re" "real" nil)
|
|
|
488 (define-abbrev fortran-mode-abbrev-table ";r" "read" nil)
|
|
|
489 (define-abbrev fortran-mode-abbrev-table ";rt" "return" nil)
|
|
|
490 (define-abbrev fortran-mode-abbrev-table ";rw" "rewind" nil)
|
|
|
491 (define-abbrev fortran-mode-abbrev-table ";s" "stop" nil)
|
|
|
492 (define-abbrev fortran-mode-abbrev-table ";sa" "save" nil)
|
|
|
493 (define-abbrev fortran-mode-abbrev-table ";st" "structure" nil)
|
|
|
494 (define-abbrev fortran-mode-abbrev-table ";sc" "static" nil)
|
|
|
495 (define-abbrev fortran-mode-abbrev-table ";su" "subroutine" nil)
|
|
|
496 (define-abbrev fortran-mode-abbrev-table ";tr" ".true." nil)
|
|
|
497 (define-abbrev fortran-mode-abbrev-table ";ty" "type" nil)
|
|
|
498 (define-abbrev fortran-mode-abbrev-table ";vo" "volatile" nil)
|
|
|
499 (define-abbrev fortran-mode-abbrev-table ";w" "write" nil)
|
|
|
500 (define-abbrev fortran-mode-abbrev-table ";wh" "where" nil)
|
|
|
501 (setq abbrevs-changed ac)))
|
|
|
502
|
|
|
503 ;;;###autoload
|
|
|
504 (defun fortran-mode ()
|
|
|
505 "Major mode for editing Fortran code.
|
|
|
506 \\[fortran-indent-line] indents the current Fortran line correctly.
|
|
|
507 DO statements must not share a common CONTINUE.
|
|
|
508
|
|
|
509 Type ;? or ;\\[help-command] to display a list of built-in\
|
|
|
510 abbrevs for Fortran keywords.
|
|
|
511
|
|
|
512 Key definitions:
|
|
|
513 \\{fortran-mode-map}
|
|
|
514
|
|
|
515 Variables controlling indentation style and extra features:
|
|
|
516
|
|
|
517 comment-start
|
|
|
518 Normally nil in Fortran mode. If you want to use comments
|
|
|
519 starting with `!', set this to the string \"!\".
|
|
|
520 fortran-do-indent
|
|
|
521 Extra indentation within do blocks. (default 3)
|
|
|
522 fortran-if-indent
|
|
|
523 Extra indentation within if blocks. (default 3)
|
|
|
524 fortran-structure-indent
|
|
|
525 Extra indentation within structure, union, map and interface blocks.
|
|
|
526 (default 3)
|
|
|
527 fortran-continuation-indent
|
|
|
528 Extra indentation applied to continuation statements. (default 5)
|
|
|
529 fortran-comment-line-extra-indent
|
|
|
530 Amount of extra indentation for text within full-line comments. (default 0)
|
|
|
531 fortran-comment-indent-style
|
|
|
532 nil means don't change indentation of text in full-line comments,
|
|
|
533 fixed means indent that text at `fortran-comment-line-extra-indent' beyond
|
|
|
534 the value of `fortran-minimum-statement-indent-fixed' (for fixed
|
|
|
535 format continuation style) or `fortran-minimum-statement-indent-tab'
|
|
|
536 (for TAB format continuation style).
|
|
|
537 relative means indent at `fortran-comment-line-extra-indent' beyond the
|
|
|
538 indentation for a line of code.
|
|
|
539 (default 'fixed)
|
|
|
540 fortran-comment-indent-char
|
|
|
541 Single-character string to be inserted instead of space for
|
|
|
542 full-line comment indentation. (default \" \")
|
|
|
543 fortran-minimum-statement-indent-fixed
|
|
|
544 Minimum indentation for Fortran statements in fixed format mode. (def.6)
|
|
|
545 fortran-minimum-statement-indent-tab
|
|
|
546 Minimum indentation for Fortran statements in TAB format mode. (default 9)
|
|
|
547 fortran-line-number-indent
|
|
|
548 Maximum indentation for line numbers. A line number will get
|
|
|
549 less than this much indentation if necessary to avoid reaching
|
|
|
550 column 5. (default 1)
|
|
|
551 fortran-check-all-num-for-matching-do
|
|
|
552 Non-nil causes all numbered lines to be treated as possible \"continue\"
|
|
|
553 statements. (default nil)
|
|
|
554 fortran-blink-matching-if
|
|
|
555 Non-nil causes \\[fortran-indent-line] on an ENDIF statement to blink on
|
|
|
556 matching IF. Also, from an ENDDO statement, blink on matching DO [WHILE]
|
|
|
557 statement. (default nil)
|
|
|
558 fortran-continuation-string
|
|
|
559 Single-character string to be inserted in column 5 of a continuation
|
|
|
560 line. (default \"$\")
|
|
|
561 fortran-comment-region
|
|
|
562 String inserted by \\[fortran-comment-region] at start of each line in
|
|
|
563 region. (default \"c$$$\")
|
|
|
564 fortran-electric-line-number
|
|
|
565 Non-nil causes line number digits to be moved to the correct column
|
|
|
566 as typed. (default t)
|
|
|
567 fortran-break-before-delimiters
|
|
|
568 Non-nil causes `fortran-fill' breaks lines before delimiters.
|
|
|
569 (default t)
|
|
|
570 fortran-startup-message
|
|
|
571 Set to nil to inhibit message first time Fortran mode is used.
|
|
|
572
|
|
|
573 Turning on Fortran mode calls the value of the variable `fortran-mode-hook'
|
|
|
574 with no args, if that value is non-nil."
|
|
|
575 (interactive)
|
|
|
576 (kill-all-local-variables)
|
|
|
577 (if fortran-startup-message
|
|
|
578 (message "Emacs Fortran mode %s. Bugs to %s"
|
|
|
579 fortran-mode-version bug-fortran-mode))
|
|
|
580 (setq fortran-startup-message nil)
|
|
|
581 (setq local-abbrev-table fortran-mode-abbrev-table)
|
|
|
582 (set-syntax-table fortran-mode-syntax-table)
|
|
|
583 (make-local-variable 'fortran-break-before-delimiters)
|
|
|
584 (setq fortran-break-before-delimiters t)
|
|
|
585 (make-local-variable 'indent-line-function)
|
|
|
586 (setq indent-line-function 'fortran-indent-line)
|
|
|
587 (make-local-variable 'comment-indent-function)
|
|
|
588 (setq comment-indent-function 'fortran-comment-hook)
|
|
|
589 (make-local-variable 'comment-line-start-skip)
|
|
|
590 (setq comment-line-start-skip
|
|
|
591 "^[Cc*]\\(\\([^ \t\n]\\)\\2\\2*\\)?[ \t]*\\|^#.*")
|
|
|
592 (make-local-variable 'comment-line-start)
|
|
|
593 (setq comment-line-start "c")
|
|
|
594 (make-local-variable 'comment-start-skip)
|
|
|
595 (setq comment-start-skip "![ \t]*")
|
|
|
596 (make-local-variable 'comment-start)
|
|
|
597 (setq comment-start nil)
|
|
|
598 (make-local-variable 'require-final-newline)
|
|
|
599 (setq require-final-newline t)
|
|
|
600 (make-local-variable 'abbrev-all-caps)
|
|
|
601 (setq abbrev-all-caps t)
|
|
|
602 (make-local-variable 'indent-tabs-mode)
|
|
|
603 (setq indent-tabs-mode nil)
|
|
|
604 ;;;(setq abbrev-mode t) ; ?? (abbrev-mode 1) instead??
|
|
|
605 (setq fill-column 72) ; Already local?
|
|
|
606 (use-local-map fortran-mode-map)
|
|
|
607 (setq mode-name "Fortran")
|
|
|
608 (setq major-mode 'fortran-mode)
|
|
|
609 ;;;(make-local-variable 'fortran-tab-mode)
|
|
|
610 (make-local-variable 'fortran-comment-line-extra-indent)
|
|
|
611 (make-local-variable 'fortran-minimum-statement-indent-fixed)
|
|
|
612 (make-local-variable 'fortran-minimum-statement-indent-tab)
|
|
|
613 (make-local-variable 'fortran-column-ruler-fixed)
|
|
|
614 (make-local-variable 'fortran-column-ruler-tab)
|
|
|
615 (make-local-variable 'fortran-tab-mode-string)
|
|
|
616 (setq fortran-tab-mode-string " TAB-format")
|
|
|
617 (setq indent-tabs-mode (fortran-analyze-file-format))
|
|
|
618 (run-hooks 'fortran-mode-hook))
|
|
|
619
|
|
|
620 (defun fortran-comment-hook ()
|
|
|
621 (save-excursion
|
|
|
622 (skip-chars-backward " \t")
|
|
|
623 (max (+ 1 (current-column))
|
|
|
624 comment-column)))
|
|
|
625
|
|
|
626 (defun fortran-indent-comment ()
|
|
|
627 "Align or create comment on current line.
|
|
|
628 Existing comments of all types are recognized and aligned.
|
|
|
629 If the line has no comment, a side-by-side comment is inserted and aligned
|
|
|
630 if the value of comment-start is not nil.
|
|
|
631 Otherwise, a separate-line comment is inserted, on this line
|
|
|
632 or on a new line inserted before this line if this line is not blank."
|
|
|
633 (interactive)
|
|
|
634 (beginning-of-line)
|
|
|
635 ;; Recognize existing comments of either kind.
|
|
|
636 (cond ((looking-at comment-line-start-skip)
|
|
|
637 (fortran-indent-line))
|
|
|
638 ((fortran-find-comment-start-skip) ; catches any inline comment and
|
|
|
639 ; leaves point after comment-start-skip
|
|
|
640 (if comment-start-skip
|
|
|
641 (progn (goto-char (match-beginning 0))
|
|
|
642 (if (not (= (current-column) (fortran-comment-hook)))
|
|
|
643 (progn (delete-horizontal-space)
|
|
|
644 (indent-to (fortran-comment-hook)))))
|
|
|
645 (end-of-line))) ; otherwise goto end of line or sth else?
|
|
|
646 ;; No existing comment.
|
|
|
647 ;; If side-by-side comments are defined, insert one,
|
|
|
648 ;; unless line is now blank.
|
|
|
649 ((and comment-start (not (looking-at "^[ \t]*$")))
|
|
|
650 (end-of-line)
|
|
|
651 (delete-horizontal-space)
|
|
|
652 (indent-to (fortran-comment-hook))
|
|
|
653 (insert comment-start))
|
|
|
654 ;; Else insert separate-line comment, making a new line if nec.
|
|
|
655 (t
|
|
|
656 (if (looking-at "^[ \t]*$")
|
|
|
657 (delete-horizontal-space)
|
|
|
658 (beginning-of-line)
|
|
|
659 (insert "\n")
|
|
|
660 (forward-char -1))
|
|
|
661 (insert comment-line-start)
|
|
|
662 (insert-char (if (stringp fortran-comment-indent-char)
|
|
|
663 (aref fortran-comment-indent-char 0)
|
|
|
664 fortran-comment-indent-char)
|
|
|
665 (- (calculate-fortran-indent) (current-column))))))
|
|
|
666
|
|
|
667 (defun fortran-comment-region (beg-region end-region arg)
|
|
|
668 "Comments every line in the region.
|
|
|
669 Puts fortran-comment-region at the beginning of every line in the region.
|
|
|
670 BEG-REGION and END-REGION are args which specify the region boundaries.
|
|
|
671 With non-nil ARG, uncomments the region."
|
|
|
672 (interactive "*r\nP")
|
|
|
673 (let ((end-region-mark (make-marker)) (save-point (point-marker)))
|
|
|
674 (set-marker end-region-mark end-region)
|
|
|
675 (goto-char beg-region)
|
|
|
676 (beginning-of-line)
|
|
|
677 (if (not arg) ;comment the region
|
|
|
678 (progn (insert fortran-comment-region)
|
|
|
679 (while (and (= (forward-line 1) 0)
|
|
|
680 (< (point) end-region-mark))
|
|
|
681 (insert fortran-comment-region)))
|
|
|
682 (let ((com (regexp-quote fortran-comment-region))) ;uncomment the region
|
|
|
683 (if (looking-at com)
|
|
|
684 (delete-region (point) (match-end 0)))
|
|
|
685 (while (and (= (forward-line 1) 0)
|
|
|
686 (< (point) end-region-mark))
|
|
|
687 (if (looking-at com)
|
|
|
688 (delete-region (point) (match-end 0))))))
|
|
|
689 (goto-char save-point)
|
|
|
690 (set-marker end-region-mark nil)
|
|
|
691 (set-marker save-point nil)))
|
|
|
692
|
|
|
693 (defun fortran-abbrev-start ()
|
|
|
694 "Typing ;\\[help-command] or ;? lists all the Fortran abbrevs.
|
|
|
695 Any other key combination is executed normally."
|
|
|
696 (interactive)
|
|
|
697 (let (e c)
|
|
|
698 (insert last-command-char)
|
|
|
699 (setq e (next-command-event)
|
|
|
700 c (event-to-character e))
|
|
|
701 ;; insert char if not equal to `?'
|
|
|
702 (if (or (= c ??) (eq c help-char))
|
|
|
703 (fortran-abbrev-help)
|
|
|
704 (setq unread-command-event e))))
|
|
|
705
|
|
|
706 (defun fortran-abbrev-help ()
|
|
|
707 "List the currently defined abbrevs in Fortran mode."
|
|
|
708 (interactive)
|
|
|
709 (message "Listing abbrev table...")
|
|
|
710 (display-buffer (fortran-prepare-abbrev-list-buffer))
|
|
|
711 (message "Listing abbrev table...done"))
|
|
|
712
|
|
|
713 (defun fortran-prepare-abbrev-list-buffer ()
|
|
|
714 (save-excursion
|
|
|
715 (set-buffer (get-buffer-create "*Abbrevs*"))
|
|
|
716 (erase-buffer)
|
|
|
717 (insert-abbrev-table-description 'fortran-mode-abbrev-table t)
|
|
|
718 (goto-char (point-min))
|
|
|
719 (set-buffer-modified-p nil)
|
|
|
720 (edit-abbrevs-mode))
|
|
|
721 (get-buffer-create "*Abbrevs*"))
|
|
|
722
|
|
|
723 (defun fortran-column-ruler ()
|
|
|
724 "Inserts a column ruler momentarily above current line, till next keystroke.
|
|
|
725 The ruler is defined by the value of `fortran-column-ruler-fixed' when in fixed
|
|
|
726 format mode, and `fortran-column-ruler-tab' when in TAB format mode.
|
|
|
727 The key typed is executed unless it is SPC."
|
|
|
728 (interactive)
|
|
|
729 (momentary-string-display
|
|
|
730 (if indent-tabs-mode
|
|
|
731 fortran-column-ruler-tab
|
|
|
732 fortran-column-ruler-fixed)
|
|
|
733 (save-excursion
|
|
|
734 (beginning-of-line)
|
|
|
735 (if (eq (window-start (selected-window))
|
|
|
736 (window-point (selected-window)))
|
|
|
737 (progn (forward-line) (point))
|
|
|
738 (point)))
|
|
|
739 nil "Type SPC or any command to erase ruler."))
|
|
|
740
|
|
|
741 (defun fortran-window-create ()
|
|
|
742 "Makes the window 72 columns wide.
|
|
|
743 See also `fortran-window-create-momentarily'."
|
|
|
744 (interactive)
|
|
|
745 (condition-case error
|
|
|
746 (progn
|
|
|
747 (let ((window-min-width 2))
|
|
|
748 (if (< (window-width) (frame-width))
|
|
|
749 (enlarge-window-horizontally (- (frame-width)
|
|
|
750 (window-width) 1)))
|
|
|
751 (split-window-horizontally 73)
|
|
|
752 (other-window 1)
|
|
|
753 (switch-to-buffer " fortran-window-extra" t)
|
|
|
754 (select-window (previous-window))))
|
|
|
755 (error (message "No room for Fortran window.")
|
|
|
756 'error)))
|
|
|
757
|
|
|
758 (defun fortran-window-create-momentarily (&optional arg)
|
|
|
759 "Momentarily makes the window 72 columns wide.
|
|
|
760 Optional ARG non-nil and non-unity disables the momentary feature.
|
|
|
761 See also `fortran-window-create'."
|
|
|
762 (interactive "p")
|
|
|
763 (if (or (not arg)
|
|
|
764 (= arg 1))
|
|
|
765 (save-window-excursion
|
|
|
766 (if (not (equal (fortran-window-create) 'error))
|
|
|
767 (progn (message "Type SPC to continue editing.")
|
|
|
768 (let ((char (next-command-event)))
|
|
|
769 (or (equal (event-to-character char) ? )
|
|
|
770 (setq unread-command-event char))))))
|
|
|
771 (fortran-window-create)))
|
|
|
772
|
|
|
773 (defun fortran-split-line ()
|
|
|
774 "Break line at point and insert continuation marker and alignment."
|
|
|
775 (interactive)
|
|
|
776 (delete-horizontal-space)
|
|
|
777 (if (save-excursion (beginning-of-line) (looking-at comment-line-start-skip))
|
|
|
778 (insert "\n" comment-line-start " ")
|
|
|
779 (if indent-tabs-mode
|
|
|
780 (progn
|
|
|
781 (insert "\n\t")
|
|
|
782 (insert-char (fortran-numerical-continuation-char) 1))
|
|
|
783 (insert "\n " fortran-continuation-string)));Space after \n important
|
|
|
784 (fortran-indent-line)) ;when the cont string is C, c or *.
|
|
|
785
|
|
|
786 (defun fortran-numerical-continuation-char ()
|
|
|
787 "Return a digit for tab-digit style of continuation lines.
|
|
|
788 If, previous line is a tab-digit continuation line, returns that digit
|
|
|
789 plus one. Otherwise return 1. Zero not allowed."
|
|
|
790 (save-excursion
|
|
|
791 (forward-line -1)
|
|
|
792 (if (looking-at "\t[1-9]")
|
|
|
793 (+ ?1 (% (- (char-after (+ (point) 1)) ?0) 9))
|
|
|
794 ?1)))
|
|
|
795
|
|
|
796 (defun delete-horizontal-regexp (chars)
|
|
|
797 "Delete all characters in CHARS around point.
|
|
|
798 CHARS is like the inside of a [...] in a regular expression
|
|
|
799 except that ] is never special and \ quotes ^, - or \."
|
|
|
800 (interactive "*s")
|
|
|
801 (skip-chars-backward chars)
|
|
|
802 (delete-region (point) (progn (skip-chars-forward chars) (point))))
|
|
|
803
|
|
|
804 (defun fortran-electric-line-number (arg)
|
|
|
805 "Self insert, but if part of a Fortran line number indent it automatically.
|
|
|
806 Auto-indent does not happen if a numeric arg is used."
|
|
|
807 (interactive "P")
|
|
|
808 (if (or arg (not fortran-electric-line-number))
|
|
|
809 (if arg
|
|
|
810 (self-insert-command (prefix-numeric-value arg))
|
|
|
811 (self-insert-command 1))
|
|
|
812 (if (or (and (= 5 (current-column))
|
|
|
813 (save-excursion
|
|
|
814 (beginning-of-line)
|
|
|
815 (looking-at " ")));In col 5 with only spaces to left.
|
|
|
816 (and (= (if indent-tabs-mode
|
|
|
817 fortran-minimum-statement-indent-tab
|
|
|
818 fortran-minimum-statement-indent-fixed) (current-column))
|
|
|
819 (save-excursion
|
|
|
820 (beginning-of-line)
|
|
|
821 (looking-at "\t"));In col 8 with a single tab to the left.
|
|
|
822 (not (or (eq last-command 'fortran-indent-line)
|
|
|
823 (eq last-command
|
|
|
824 'fortran-indent-new-line))))
|
|
|
825 (save-excursion
|
|
|
826 (re-search-backward "[^ \t0-9]"
|
|
|
827 (save-excursion
|
|
|
828 (beginning-of-line)
|
|
|
829 (point))
|
|
|
830 t)) ;not a line number
|
|
|
831 (looking-at "[0-9]") ;within a line number
|
|
|
832 )
|
|
|
833 (self-insert-command (prefix-numeric-value arg))
|
|
|
834 (skip-chars-backward " \t")
|
|
|
835 (insert last-command-char)
|
|
|
836 (fortran-indent-line))))
|
|
|
837
|
|
|
838 (defun beginning-of-fortran-subprogram ()
|
|
|
839 "Moves point to the beginning of the current Fortran subprogram."
|
|
|
840 (interactive)
|
|
|
841 (let ((case-fold-search t))
|
|
|
842 (beginning-of-line -1)
|
|
|
843 (re-search-backward "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]" nil 'move)
|
|
|
844 (if (looking-at "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]")
|
|
|
845 (forward-line 1))))
|
|
|
846
|
|
|
847 (defun end-of-fortran-subprogram ()
|
|
|
848 "Moves point to the end of the current Fortran subprogram."
|
|
|
849 (interactive)
|
|
|
850 (let ((case-fold-search t))
|
|
|
851 (beginning-of-line 2)
|
|
|
852 (re-search-forward "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]" nil 'move)
|
|
|
853 (goto-char (match-beginning 0))
|
|
|
854 (forward-line 1)))
|
|
|
855
|
|
|
856 (defun mark-fortran-subprogram ()
|
|
|
857 "Put mark at end of Fortran subprogram, point at beginning.
|
|
|
858 The marks are pushed."
|
|
|
859 (interactive)
|
|
|
860 (end-of-fortran-subprogram)
|
|
|
861 (push-mark (point))
|
|
|
862 (beginning-of-fortran-subprogram))
|
|
|
863
|
|
|
864 (defun fortran-previous-statement ()
|
|
|
865 "Moves point to beginning of the previous Fortran statement.
|
|
|
866 Returns `first-statement' if that statement is the first
|
|
|
867 non-comment Fortran statement in the file, and nil otherwise."
|
|
|
868 (interactive)
|
|
|
869 (let (not-first-statement continue-test)
|
|
|
870 (beginning-of-line)
|
|
|
871 (setq continue-test
|
|
|
872 (and
|
|
|
873 (not (looking-at comment-line-start-skip))
|
|
|
874 (or (looking-at
|
|
|
875 (concat "[ \t]*" (regexp-quote fortran-continuation-string)))
|
|
|
876 (or (looking-at " [^ 0\n]")
|
|
|
877 (looking-at "\t[1-9]")))))
|
|
|
878 (while (and (setq not-first-statement (= (forward-line -1) 0))
|
|
|
879 (or (looking-at comment-line-start-skip)
|
|
|
880 (looking-at "[ \t]*$")
|
|
|
881 (looking-at " [^ 0\n]")
|
|
|
882 (looking-at "\t[1-9]")
|
|
|
883 (looking-at (concat "[ \t]*" comment-start-skip)))))
|
|
|
884 (cond ((and continue-test
|
|
|
885 (not not-first-statement))
|
|
|
886 (message "Incomplete continuation statement."))
|
|
|
887 (continue-test
|
|
|
888 (fortran-previous-statement))
|
|
|
889 ((not not-first-statement)
|
|
|
890 'first-statement))))
|
|
|
891
|
|
|
892 (defun fortran-next-statement ()
|
|
|
893 "Moves point to beginning of the next Fortran statement.
|
|
|
894 Returns `last-statement' if that statement is the last
|
|
|
895 non-comment Fortran statement in the file, and nil otherwise."
|
|
|
896 (interactive)
|
|
|
897 (let (not-last-statement)
|
|
|
898 (beginning-of-line)
|
|
|
899 (while (and (setq not-last-statement
|
|
|
900 (and (= (forward-line 1) 0)
|
|
|
901 (not (eobp))))
|
|
|
902 (or (looking-at comment-line-start-skip)
|
|
|
903 (looking-at "[ \t]*$")
|
|
|
904 (looking-at " [^ 0\n]")
|
|
|
905 (looking-at "\t[1-9]")
|
|
|
906 (looking-at (concat "[ \t]*" comment-start-skip)))))
|
|
|
907 (if (not not-last-statement)
|
|
|
908 'last-statement)))
|
|
|
909
|
|
|
910 (defun fortran-blink-matching-if ()
|
|
|
911 ;; From a Fortran ENDIF statement, blink the matching IF statement.
|
|
|
912 (let ((top-of-window (window-start)) matching-if
|
|
|
913 (endif-point (point)) message)
|
|
|
914 (if (save-excursion (beginning-of-line)
|
|
|
915 (skip-chars-forward " \t0-9")
|
|
|
916 (looking-at "end[ \t]*if\\b"))
|
|
|
917 (progn
|
|
|
918 (if (not (setq matching-if (fortran-beginning-if)))
|
|
|
919 (setq message "No matching if.")
|
|
|
920 (if (< matching-if top-of-window)
|
|
|
921 (save-excursion
|
|
|
922 (goto-char matching-if)
|
|
|
923 (beginning-of-line)
|
|
|
924 (setq message
|
|
|
925 (concat "Matches "
|
|
|
926 (buffer-substring
|
|
|
927 (point) (progn (end-of-line) (point))))))))
|
|
|
928 (if message
|
|
|
929 (message "%s" message)
|
|
|
930 (goto-char matching-if)
|
|
|
931 (sit-for 1)
|
|
|
932 (goto-char endif-point))))))
|
|
|
933
|
|
|
934 (defun fortran-blink-matching-do ()
|
|
|
935 ;; From a Fortran ENDDO statement, blink on the matching DO or DO WHILE
|
|
|
936 ;; statement. This is basically copied from fortran-blink-matching-if.
|
|
|
937 (let ((top-of-window (window-start)) matching-do
|
|
|
938 (enddo-point (point)) message)
|
|
|
939 (if (save-excursion (beginning-of-line)
|
|
|
940 (skip-chars-forward " \t0-9")
|
|
|
941 (looking-at "end[ \t]*do\\b"))
|
|
|
942 (progn
|
|
|
943 (if (not (setq matching-do (fortran-beginning-do)))
|
|
|
944 (setq message "No matching do.")
|
|
|
945 (if (< matching-do top-of-window)
|
|
|
946 (save-excursion
|
|
|
947 (goto-char matching-do)
|
|
|
948 (beginning-of-line)
|
|
|
949 (setq message
|
|
|
950 (concat "Matches "
|
|
|
951 (buffer-substring
|
|
|
952 (point) (progn (end-of-line) (point))))))))
|
|
|
953 (if message
|
|
|
954 (message "%s" message)
|
|
|
955 (goto-char matching-do)
|
|
|
956 (sit-for 1)
|
|
|
957 (goto-char enddo-point))))))
|
|
|
958
|
|
|
959 (defun fortran-mark-do ()
|
|
|
960 "Put mark at end of Fortran DO [WHILE]-ENDDO construct, point at beginning.
|
|
|
961 The marks are pushed."
|
|
|
962 (interactive)
|
|
|
963 (let (enddo-point do-point)
|
|
|
964 (if (setq enddo-point (fortran-end-do))
|
|
|
965 (if (not (setq do-point (fortran-beginning-do)))
|
|
|
966 (message "No matching do.")
|
|
|
967 ;; Set mark, move point.
|
|
|
968 (goto-char enddo-point)
|
|
|
969 (push-mark)
|
|
|
970 (goto-char do-point)))))
|
|
|
971
|
|
|
972 (defun fortran-end-do ()
|
|
|
973 ;; Search forward for first unmatched ENDDO. Return point or nil.
|
|
|
974 (if (save-excursion (beginning-of-line)
|
|
|
975 (skip-chars-forward " \t0-9")
|
|
|
976 (looking-at "end[ \t]*do\\b"))
|
|
|
977 ;; Sitting on one.
|
|
|
978 (match-beginning 0)
|
|
|
979 ;; Search for one.
|
|
|
980 (save-excursion
|
|
|
981 (let ((count 1))
|
|
|
982 (while (and (not (= count 0))
|
|
|
983 (not (eq (fortran-next-statement) 'last-statement))
|
|
|
984 ;; Keep local to subprogram
|
|
|
985 (not (looking-at "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]")))
|
|
|
986
|
|
|
987 (skip-chars-forward " \t0-9")
|
|
|
988 (cond ((looking-at "end[ \t]*do\\b")
|
|
|
989 (setq count (- count 1)))
|
|
|
990 ((looking-at "do[ \t]+[^0-9]")
|
|
|
991 (setq count (+ count 1)))))
|
|
|
992 (and (= count 0)
|
|
|
993 ;; All pairs accounted for.
|
|
|
994 (point))))))
|
|
|
995
|
|
|
996 (defun fortran-beginning-do ()
|
|
|
997 ;; Search backwards for first unmatched DO [WHILE]. Return point or nil.
|
|
|
998 (if (save-excursion (beginning-of-line)
|
|
|
999 (skip-chars-forward " \t0-9")
|
|
|
1000 (looking-at "do[ \t]+"))
|
|
|
1001 ;; Sitting on one.
|
|
|
1002 (match-beginning 0)
|
|
|
1003 ;; Search for one.
|
|
|
1004 (save-excursion
|
|
|
1005 (let ((count 1))
|
|
|
1006 (while (and (not (= count 0))
|
|
|
1007 (not (eq (fortran-previous-statement) 'first-statement))
|
|
|
1008 ;; Keep local to subprogram
|
|
|
1009 (not (looking-at "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]")))
|
|
|
1010
|
|
|
1011 (skip-chars-forward " \t0-9")
|
|
|
1012 (cond ((looking-at "do[ \t]+[^0-9]")
|
|
|
1013 (setq count (- count 1)))
|
|
|
1014 ((looking-at "end[ \t]*do\\b")
|
|
|
1015 (setq count (+ count 1)))))
|
|
|
1016
|
|
|
1017 (and (= count 0)
|
|
|
1018 ;; All pairs accounted for.
|
|
|
1019 (point))))))
|
|
|
1020
|
|
|
1021 (defun fortran-mark-if ()
|
|
|
1022 "Put mark at end of Fortran IF-ENDIF construct, point at beginning.
|
|
|
1023 The marks are pushed."
|
|
|
1024 (interactive)
|
|
|
1025 (let (endif-point if-point)
|
|
|
1026 (if (setq endif-point (fortran-end-if))
|
|
|
1027 (if (not (setq if-point (fortran-beginning-if)))
|
|
|
1028 (message "No matching if.")
|
|
|
1029 ;; Set mark, move point.
|
|
|
1030 (goto-char endif-point)
|
|
|
1031 (push-mark)
|
|
|
1032 (goto-char if-point)))))
|
|
|
1033
|
|
|
1034 (defun fortran-end-if ()
|
|
|
1035 ;; Search forwards for first unmatched ENDIF. Return point or nil.
|
|
|
1036 (if (save-excursion (beginning-of-line)
|
|
|
1037 (skip-chars-forward " \t0-9")
|
|
|
1038 (looking-at "end[ \t]*if\\b"))
|
|
|
1039 ;; Sitting on one.
|
|
|
1040 (match-beginning 0)
|
|
|
1041 ;; Search for one. The point has been already been moved to first
|
|
|
1042 ;; letter on line but this should not cause troubles.
|
|
|
1043 (save-excursion
|
|
|
1044 (let ((count 1))
|
|
|
1045 (while (and (not (= count 0))
|
|
|
1046 (not (eq (fortran-next-statement) 'last-statement))
|
|
|
1047 ;; Keep local to subprogram.
|
|
|
1048 (not (looking-at
|
|
|
1049 "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]")))
|
|
|
1050
|
|
|
1051 (skip-chars-forward " \t0-9")
|
|
|
1052 (cond ((looking-at "end[ \t]*if\\b")
|
|
|
1053 (setq count (- count 1)))
|
|
|
1054
|
|
|
1055 ((looking-at "if[ \t]*(")
|
|
|
1056 (save-excursion
|
|
|
1057 (if (or
|
|
|
1058 (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t(=a-z0-9]")
|
|
|
1059 (let (then-test) ; Multi-line if-then.
|
|
|
1060 (while
|
|
|
1061 (and (= (forward-line 1) 0)
|
|
|
1062 ;; Search forward for then.
|
|
|
1063 (or (looking-at " [^ 0\n]")
|
|
|
1064 (looking-at "\t[1-9]"))
|
|
|
1065 (not
|
|
|
1066 (setq then-test
|
|
|
1067 (looking-at
|
|
|
1068 ".*then\\b[ \t]*[^ \t(=a-z0-9]")))))
|
|
|
1069 then-test))
|
|
|
1070 (setq count (+ count 1)))))))
|
|
|
1071
|
|
|
1072 (and (= count 0)
|
|
|
1073 ;; All pairs accounted for.
|
|
|
1074 (point))))))
|
|
|
1075
|
|
|
1076 (defun fortran-beginning-if ()
|
|
|
1077 ;; Search backwards for first unmatched IF-THEN. Return point or nil.
|
|
|
1078 (if (save-excursion
|
|
|
1079 ;; May be sitting on multi-line if-then statement, first move to
|
|
|
1080 ;; beginning of current statement. Note: `fortran-previous-statement'
|
|
|
1081 ;; moves to previous statement *unless* current statement is first
|
|
|
1082 ;; one. Only move forward if not first-statement.
|
|
|
1083 (if (not (eq (fortran-previous-statement) 'first-statement))
|
|
|
1084 (fortran-next-statement))
|
|
|
1085 (skip-chars-forward " \t0-9")
|
|
|
1086 (and
|
|
|
1087 (looking-at "if[ \t]*(")
|
|
|
1088 (save-match-data
|
|
|
1089 (or (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t(=a-z0-9]")
|
|
|
1090 ;; Multi-line if-then.
|
|
|
1091 (let (then-test)
|
|
|
1092 (while
|
|
|
1093 (and (= (forward-line 1) 0)
|
|
|
1094 ;; Search forward for then.
|
|
|
1095 (or (looking-at " [^ 0\n]")
|
|
|
1096 (looking-at "\t[1-9]"))
|
|
|
1097 (not
|
|
|
1098 (setq then-test
|
|
|
1099 (looking-at
|
|
|
1100 ".*then\\b[ \t]*[^ \t(=a-z0-9]")))))
|
|
|
1101 then-test)))))
|
|
|
1102 ;; Sitting on one.
|
|
|
1103 (match-beginning 0)
|
|
|
1104 ;; Search for one.
|
|
|
1105 (save-excursion
|
|
|
1106 (let ((count 1))
|
|
|
1107 (while (and (not (= count 0))
|
|
|
1108 (not (eq (fortran-previous-statement) 'first-statement))
|
|
|
1109 ;; Keep local to subprogram.
|
|
|
1110 (not (looking-at
|
|
|
1111 "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]")))
|
|
|
1112
|
|
|
1113 (skip-chars-forward " \t0-9")
|
|
|
1114 (cond ((looking-at "if[ \t]*(")
|
|
|
1115 (save-excursion
|
|
|
1116 (if (or
|
|
|
1117 (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t(=a-z0-9]")
|
|
|
1118 (let (then-test) ; Multi-line if-then.
|
|
|
1119 (while
|
|
|
1120 (and (= (forward-line 1) 0)
|
|
|
1121 ;; Search forward for then.
|
|
|
1122 (or (looking-at " [^ 0\n]")
|
|
|
1123 (looking-at "\t[1-9]"))
|
|
|
1124 (not
|
|
|
1125 (setq then-test
|
|
|
1126 (looking-at
|
|
|
1127 ".*then\\b[ \t]*[^ \t(=a-z0-9]")))))
|
|
|
1128 then-test))
|
|
|
1129 (setq count (- count 1)))))
|
|
|
1130 ((looking-at "end[ \t]*if\\b")
|
|
|
1131 (setq count (+ count 1)))))
|
|
|
1132
|
|
|
1133 (and (= count 0)
|
|
|
1134 ;; All pairs accounted for.
|
|
|
1135 (point))))))
|
|
|
1136
|
|
|
1137 (defun fortran-indent-line ()
|
|
|
1138 "Indents current Fortran line based on its contents and on previous lines."
|
|
|
1139 (interactive)
|
|
|
1140 (let ((cfi (calculate-fortran-indent)))
|
|
|
1141 (save-excursion
|
|
|
1142 (beginning-of-line)
|
|
|
1143 (if (or (not (= cfi (fortran-current-line-indentation)))
|
|
|
1144 (and (re-search-forward "^[ \t]*[0-9]+" (+ (point) 4) t)
|
|
|
1145 (not (fortran-line-number-indented-correctly-p))))
|
|
|
1146 (fortran-indent-to-column cfi)
|
|
|
1147 (beginning-of-line)
|
|
|
1148 (if (and (not (looking-at comment-line-start-skip))
|
|
|
1149 (fortran-find-comment-start-skip))
|
|
|
1150 (fortran-indent-comment))))
|
|
|
1151 ;; Never leave point in left margin.
|
|
|
1152 (if (< (current-column) cfi)
|
|
|
1153 (move-to-column cfi))
|
|
|
1154 (if (and auto-fill-function
|
|
|
1155 (> (save-excursion (end-of-line) (current-column)) fill-column))
|
|
|
1156 (save-excursion
|
|
|
1157 (end-of-line)
|
|
|
1158 (fortran-fill)))
|
|
|
1159 (if fortran-blink-matching-if
|
|
|
1160 (progn
|
|
|
1161 (fortran-blink-matching-if)
|
|
|
1162 (fortran-blink-matching-do)))))
|
|
|
1163
|
|
|
1164 (defun fortran-indent-new-line ()
|
|
|
1165 "Reindent the current Fortran line, insert a newline and indent the newline.
|
|
|
1166 An abbrev before point is expanded if `abbrev-mode' is non-nil."
|
|
|
1167 (interactive)
|
|
|
1168 (if abbrev-mode (expand-abbrev))
|
|
|
1169 (save-excursion
|
|
|
1170 (beginning-of-line)
|
|
|
1171 (skip-chars-forward " \t")
|
|
|
1172 (if (or (looking-at "[0-9]") ;Reindent only where it is most
|
|
|
1173 (looking-at "end") ;likely to be necessary
|
|
|
1174 (looking-at "else")
|
|
|
1175 (looking-at (regexp-quote fortran-continuation-string)))
|
|
|
1176 (fortran-indent-line)))
|
|
|
1177 (newline)
|
|
|
1178 (fortran-indent-line))
|
|
|
1179
|
|
|
1180 (defun fortran-indent-subprogram ()
|
|
|
1181 "Properly indents the Fortran subprogram which contains point."
|
|
|
1182 (interactive)
|
|
|
1183 (save-excursion
|
|
|
1184 (mark-fortran-subprogram)
|
|
|
1185 (message "Indenting subprogram...")
|
|
|
1186 (indent-region (point) (mark t) nil)) ; XEmacs change
|
|
|
1187 (message "Indenting subprogram...done."))
|
|
|
1188
|
|
|
1189 (defun calculate-fortran-indent ()
|
|
|
1190 "Calculates the Fortran indent column based on previous lines."
|
|
|
1191 (let (icol first-statement (case-fold-search t)
|
|
|
1192 (fortran-minimum-statement-indent
|
|
|
1193 (if indent-tabs-mode
|
|
|
1194 fortran-minimum-statement-indent-tab
|
|
|
1195 fortran-minimum-statement-indent-fixed)))
|
|
|
1196 (save-excursion
|
|
|
1197 (setq first-statement (fortran-previous-statement))
|
|
|
1198 (if first-statement
|
|
|
1199 (setq icol fortran-minimum-statement-indent)
|
|
|
1200 (progn
|
|
|
1201 (if (= (point) (point-min))
|
|
|
1202 (setq icol fortran-minimum-statement-indent)
|
|
|
1203 (setq icol (fortran-current-line-indentation)))
|
|
|
1204 (skip-chars-forward " \t0-9")
|
|
|
1205 (cond ((looking-at "if[ \t]*(")
|
|
|
1206 (if (or (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t_$(=a-z0-9]")
|
|
|
1207 (let (then-test) ;multi-line if-then
|
|
|
1208 (while (and (= (forward-line 1) 0)
|
|
|
1209 ;;search forward for then
|
|
|
1210 (or (looking-at " [^ 0\n]")
|
|
|
1211 (looking-at "\t[1-9]"))
|
|
|
1212 (not (setq then-test (looking-at
|
|
|
1213 ".*then\\b[ \t]\
|
|
|
1214 *[^ \t_$(=a-z0-9]")))))
|
|
|
1215 then-test))
|
|
|
1216 (setq icol (+ icol fortran-if-indent))))
|
|
|
1217 ((looking-at "\\(else\\|elseif\\)\\b")
|
|
|
1218 (setq icol (+ icol fortran-if-indent)))
|
|
|
1219 ((looking-at "select[ \t]*case[ \t](.*)\\b")
|
|
|
1220 (setq icol (+ icol fortran-if-indent)))
|
|
|
1221 ((looking-at "case[ \t]*(.*)[ \t]*\n")
|
|
|
1222 (setq icol (+ icol fortran-if-indent)))
|
|
|
1223 ((looking-at "case[ \t]*default\\b")
|
|
|
1224 (setq icol (+ icol fortran-if-indent)))
|
|
|
1225 ((looking-at "\\(otherwise\\|else[ \t]*where\\)\\b")
|
|
|
1226 (setq icol (+ icol fortran-if-indent)))
|
|
|
1227 ((looking-at "where[ \t]*(.*)[ \t]*\n")
|
|
|
1228 (setq icol (+ icol fortran-if-indent)))
|
|
|
1229 ((looking-at "do\\b")
|
|
|
1230 (setq icol (+ icol fortran-do-indent)))
|
|
|
1231 ((looking-at
|
|
|
1232 "\\(structure\\|union\\|map\\|interface\\)\\b[ \t]*[^ \t=(a-z]")
|
|
|
1233 (setq icol (+ icol fortran-structure-indent)))
|
|
|
1234 ((looking-at "end\\b[ \t]*[^ \t=(a-z]")
|
|
|
1235 ;; Previous END resets indent to minimum
|
|
|
1236 (setq icol fortran-minimum-statement-indent))))))
|
|
|
1237 (save-excursion
|
|
|
1238 (beginning-of-line)
|
|
|
1239 (cond ((looking-at "[ \t]*$"))
|
|
|
1240 ((looking-at comment-line-start-skip)
|
|
|
1241 (cond ((eq fortran-comment-indent-style 'relative)
|
|
|
1242 (setq icol (+ icol fortran-comment-line-extra-indent)))
|
|
|
1243 ((eq fortran-comment-indent-style 'fixed)
|
|
|
1244 (setq icol (+ fortran-minimum-statement-indent
|
|
|
1245 fortran-comment-line-extra-indent))))
|
|
|
1246 (setq fortran-minimum-statement-indent 0))
|
|
|
1247 ((or (looking-at (concat "[ \t]*"
|
|
|
1248 (regexp-quote
|
|
|
1249 fortran-continuation-string)))
|
|
|
1250 (looking-at " [^ 0\n]")
|
|
|
1251 (looking-at "\t[1-9]"))
|
|
|
1252 (setq icol (+ icol fortran-continuation-indent)))
|
|
|
1253 ((looking-at "[ \t]*#") ; Check for cpp directive.
|
|
|
1254 (setq fortran-minimum-statement-indent 0 icol 0))
|
|
|
1255 (first-statement)
|
|
|
1256 ((and fortran-check-all-num-for-matching-do
|
|
|
1257 (looking-at "[ \t]*[0-9]+")
|
|
|
1258 (fortran-check-for-matching-do))
|
|
|
1259 (setq icol (- icol fortran-do-indent)))
|
|
|
1260 (t
|
|
|
1261 (skip-chars-forward " \t0-9")
|
|
|
1262 (cond ((looking-at "end[ \t]*if\\b")
|
|
|
1263 (setq icol (- icol fortran-if-indent)))
|
|
|
1264 ((looking-at "\\(else\\|elseif\\)\\b")
|
|
|
1265 (setq icol (- icol fortran-if-indent)))
|
|
|
1266 ((looking-at "case[ \t]*(.*)[ \t]*\n")
|
|
|
1267 (setq icol (- icol fortran-if-indent)))
|
|
|
1268 ((looking-at "case[ \t]*default\\b")
|
|
|
1269 (setq icol (- icol fortran-if-indent)))
|
|
|
1270 ((looking-at "\\(otherwise\\|else[ \t]*where\\)\\b")
|
|
|
1271 (setq icol (- icol fortran-if-indent)))
|
|
|
1272 ((looking-at "end[ \t]*where\\b")
|
|
|
1273 (setq icol (- icol fortran-if-indent)))
|
|
|
1274 ((and (looking-at "continue\\b")
|
|
|
1275 (fortran-check-for-matching-do))
|
|
|
1276 (setq icol (- icol fortran-do-indent)))
|
|
|
1277 ((looking-at "end[ \t]*do\\b")
|
|
|
1278 (setq icol (- icol fortran-do-indent)))
|
|
|
1279 ((looking-at
|
|
|
1280 "end[ \t]*\
|
|
|
1281 \\(structure\\|union\\|map\\|interface\\)\\b[ \t]*[^ \t=(a-z]")
|
|
|
1282 (setq icol (- icol fortran-structure-indent)))
|
|
|
1283 ((looking-at
|
|
|
1284 "end[ \t]*select\\b[ \t]*[^ \t=(a-z]")
|
|
|
1285 (setq icol (- icol fortran-if-indent)))
|
|
|
1286 ((and (looking-at "end\\b[ \t]*[^ \t=(a-z]")
|
|
|
1287 (not (= icol fortran-minimum-statement-indent)))
|
|
|
1288 (message "Warning: `end' not in column %d. Probably\
|
|
|
1289 an unclosed block." fortran-minimum-statement-indent))))))
|
|
|
1290 (max fortran-minimum-statement-indent icol)))
|
|
|
1291
|
|
|
1292 (defun fortran-current-line-indentation ()
|
|
|
1293 "Indentation of current line, ignoring Fortran line number or continuation.
|
|
|
1294 This is the column position of the first non-whitespace character
|
|
|
1295 aside from the line number and/or column 5/8 line-continuation character.
|
|
|
1296 For comment lines, returns indentation of the first
|
|
|
1297 non-indentation text within the comment."
|
|
|
1298 (save-excursion
|
|
|
1299 (beginning-of-line)
|
|
|
1300 (cond ((looking-at comment-line-start-skip)
|
|
|
1301 (goto-char (match-end 0))
|
|
|
1302 (skip-chars-forward
|
|
|
1303 (if (stringp fortran-comment-indent-char)
|
|
|
1304 fortran-comment-indent-char
|
|
|
1305 (char-to-string fortran-comment-indent-char))))
|
|
|
1306 ((or (looking-at " [^ 0\n]")
|
|
|
1307 (looking-at "\t[1-9]"))
|
|
|
1308 (goto-char (match-end 0)))
|
|
|
1309 (t
|
|
|
1310 ;; Move past line number.
|
|
|
1311 (skip-chars-forward "[ \t0-9]");From Uli
|
|
|
1312 ))
|
|
|
1313 ;; Move past whitespace.
|
|
|
1314 (skip-chars-forward " \t")
|
|
|
1315 (current-column)))
|
|
|
1316
|
|
|
1317 (defun fortran-indent-to-column (col)
|
|
|
1318 "Indents current line with spaces to column COL.
|
|
|
1319 notes: 1) A non-zero/non-blank character in column 5 indicates a continuation
|
|
|
1320 line, and this continuation character is retained on indentation;
|
|
|
1321 2) If `fortran-continuation-string' is the first non-whitespace
|
|
|
1322 character, this is a continuation line;
|
|
|
1323 3) A non-continuation line which has a number as the first
|
|
|
1324 non-whitespace character is a numbered line.
|
|
|
1325 4) A TAB followed by a digit indicates a continuation line."
|
|
|
1326 (save-excursion
|
|
|
1327 (beginning-of-line)
|
|
|
1328 (if (looking-at comment-line-start-skip)
|
|
|
1329 (if fortran-comment-indent-style
|
|
|
1330 (let ((char (if (stringp fortran-comment-indent-char)
|
|
|
1331 (aref fortran-comment-indent-char 0)
|
|
|
1332 fortran-comment-indent-char)))
|
|
|
1333 (goto-char (match-end 0))
|
|
|
1334 (delete-horizontal-regexp (concat " \t" (char-to-string char)))
|
|
|
1335 (insert-char char (- col (current-column)))))
|
|
|
1336 (if (looking-at "\t[1-9]")
|
|
|
1337 (if indent-tabs-mode
|
|
|
1338 (goto-char (match-end 0))
|
|
|
1339 (delete-char 2)
|
|
|
1340 (insert " ")
|
|
|
1341 (insert fortran-continuation-string))
|
|
|
1342 (if (looking-at " [^ 0\n]")
|
|
|
1343 (if indent-tabs-mode
|
|
|
1344 (progn (delete-char 6)
|
|
|
1345 (insert "\t")
|
|
|
1346 (insert-char (fortran-numerical-continuation-char) 1))
|
|
|
1347 (forward-char 6))
|
|
|
1348 (delete-horizontal-space)
|
|
|
1349 ;; Put line number in columns 0-4
|
|
|
1350 ;; or put continuation character in column 5.
|
|
|
1351 (cond ((eobp))
|
|
|
1352 ((looking-at (regexp-quote fortran-continuation-string))
|
|
|
1353 (if indent-tabs-mode
|
|
|
1354 (progn
|
|
|
1355 (indent-to
|
|
|
1356 (if indent-tabs-mode
|
|
|
1357 fortran-minimum-statement-indent-tab
|
|
|
1358 fortran-minimum-statement-indent-fixed))
|
|
|
1359 (delete-char 1)
|
|
|
1360 (insert-char (fortran-numerical-continuation-char) 1))
|
|
|
1361 (indent-to 5)
|
|
|
1362 (forward-char 1)))
|
|
|
1363 ((looking-at "[0-9]+")
|
|
|
1364 (let ((extra-space (- 5 (- (match-end 0) (point)))))
|
|
|
1365 (if (< extra-space 0)
|
|
|
1366 (message "Warning: line number exceeds 5-digit limit.")
|
|
|
1367 (indent-to (min fortran-line-number-indent extra-space))))
|
|
|
1368 (skip-chars-forward "0-9")))))
|
|
|
1369 ;; Point is now after any continuation character or line number.
|
|
|
1370 ;; Put body of statement where specified.
|
|
|
1371 (delete-horizontal-space)
|
|
|
1372 (indent-to col)
|
|
|
1373 ;; Indent any comment following code on the same line.
|
|
|
1374 (if (and comment-start-skip
|
|
|
1375 (fortran-find-comment-start-skip))
|
|
|
1376 (progn (goto-char (match-beginning 0))
|
|
|
1377 (if (not (= (current-column) (fortran-comment-hook)))
|
|
|
1378 (progn (delete-horizontal-space)
|
|
|
1379 (indent-to (fortran-comment-hook)))))))))
|
|
|
1380
|
|
|
1381 (defun fortran-line-number-indented-correctly-p ()
|
|
|
1382 "Return t if current line's line number is correctly indented.
|
|
|
1383 Do not call if there is no line number."
|
|
|
1384 (save-excursion
|
|
|
1385 (beginning-of-line)
|
|
|
1386 (skip-chars-forward " \t")
|
|
|
1387 (and (<= (current-column) fortran-line-number-indent)
|
|
|
1388 (or (= (current-column) fortran-line-number-indent)
|
|
|
1389 (progn (skip-chars-forward "0-9")
|
|
|
1390 (= (current-column) 5))))))
|
|
|
1391
|
|
|
1392 (defun fortran-check-for-matching-do ()
|
|
|
1393 "When called from a numbered statement, returns t if matching DO is found.
|
|
|
1394 Otherwise return a nil."
|
|
|
1395 (let (charnum
|
|
|
1396 (case-fold-search t))
|
|
|
1397 (save-excursion
|
|
|
1398 (beginning-of-line)
|
|
|
1399 (if (looking-at "[ \t]*[0-9]+")
|
|
|
1400 (progn
|
|
|
1401 (skip-chars-forward " \t")
|
|
|
1402 (skip-chars-forward "0") ;skip past leading zeros
|
|
|
1403 (setq charnum (buffer-substring (point)
|
|
|
1404 (progn (skip-chars-forward "0-9")
|
|
|
1405 (point))))
|
|
|
1406 (beginning-of-line)
|
|
|
1407 (and (re-search-backward
|
|
|
1408 (concat "\\(^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]\\)\\|"
|
|
|
1409 "\\(^[ \t0-9]*do[ \t]*0*" charnum "\\b\\)\\|"
|
|
|
1410 "\\(^[ \t]*0*" charnum "\\b\\)")
|
|
|
1411 nil t)
|
|
|
1412 (looking-at (concat "^[ \t0-9]*do[ \t]*0*" charnum))))))))
|
|
|
1413
|
|
|
1414 (defun fortran-find-comment-start-skip ()
|
|
|
1415 "Move to past `comment-start-skip' found on current line.
|
|
|
1416 Return t if `comment-start-skip' found, nil if not."
|
|
|
1417 ;;; In order to move point only if comment-start-skip is found,
|
|
|
1418 ;;; this one uses a lot of save-excursions. Note that re-search-forward
|
|
|
1419 ;;; moves point even if comment-start-skip is inside a string-constant.
|
|
|
1420 ;;; Some code expects certain values for match-beginning and end
|
|
|
1421 (interactive)
|
|
|
1422 (if (save-excursion
|
|
|
1423 (re-search-forward comment-start-skip
|
|
|
1424 (save-excursion (end-of-line) (point)) t))
|
|
|
1425 (let ((save-match-beginning (match-beginning 0))
|
|
|
1426 (save-match-end (match-end 0)))
|
|
|
1427 (if (fortran-is-in-string-p (match-beginning 0))
|
|
|
1428 (save-excursion
|
|
|
1429 (goto-char save-match-end)
|
|
|
1430 (fortran-find-comment-start-skip)) ; recurse for rest of line
|
|
|
1431 (goto-char save-match-beginning)
|
|
|
1432 (re-search-forward comment-start-skip
|
|
|
1433 (save-excursion (end-of-line) (point)) t)
|
|
|
1434 (goto-char (match-end 0))
|
|
|
1435 t))
|
|
|
1436 nil))
|
|
|
1437
|
|
|
1438 ;;;From: simon@gnu (Simon Marshall)
|
|
|
1439 ;;; Find the next ! not in a string.
|
|
|
1440 (defun fortran-match-!-comment (limit)
|
|
|
1441 (let (found)
|
|
|
1442 (while (and (setq found (search-forward "!" limit t))
|
|
|
1443 (fortran-is-in-string-p (point))))
|
|
|
1444 (if (not found)
|
|
|
1445 nil
|
|
|
1446 ;; Cheaper than `looking-at' "!.*".
|
|
|
1447 (store-match-data
|
|
|
1448 (list (1- (point)) (progn (end-of-line) (min (point) limit))))
|
|
|
1449 t)))
|
|
|
1450
|
|
|
1451 ;; The above function is about 10% faster than the below...
|
|
|
1452 ;;(defun fortran-match-!-comment (limit)
|
|
|
1453 ;; (let (found)
|
|
|
1454 ;; (while (and (setq found (re-search-forward "!.*" limit t))
|
|
|
1455 ;; (fortran-is-in-string-p (match-beginning 0))))
|
|
|
1456 ;; found))
|
|
|
1457
|
|
|
1458 ;;;From: ralf@up3aud1.gwdg.de (Ralf Fassel)
|
|
|
1459 ;;; Test if TAB format continuation lines work.
|
|
|
1460 (defun fortran-is-in-string-p (where)
|
|
|
1461 "Return non-nil if POS (a buffer position) is inside a Fortran string,
|
|
|
1462 nil else."
|
|
|
1463 (save-excursion
|
|
|
1464 (goto-char where)
|
|
|
1465 (cond
|
|
|
1466 ((bolp) nil) ; bol is never inside a string
|
|
|
1467 ((save-excursion ; comment lines too
|
|
|
1468 (beginning-of-line)(looking-at comment-line-start-skip)) nil)
|
|
|
1469 (t (let (;; ok, serious now. Init some local vars:
|
|
|
1470 (parse-state '(0 nil nil nil nil nil 0))
|
|
|
1471 (quoted-comment-start (if comment-start
|
|
|
1472 (regexp-quote comment-start)))
|
|
|
1473 (not-done t)
|
|
|
1474 parse-limit
|
|
|
1475 end-of-line
|
|
|
1476 )
|
|
|
1477 ;; move to start of current statement
|
|
|
1478 (fortran-next-statement)
|
|
|
1479 (fortran-previous-statement)
|
|
|
1480 ;; now parse up to WHERE
|
|
|
1481 (while not-done
|
|
|
1482 (if (or ;; skip to next line if:
|
|
|
1483 ;; - comment line?
|
|
|
1484 (looking-at comment-line-start-skip)
|
|
|
1485 ;; - at end of line?
|
|
|
1486 (eolp)
|
|
|
1487 ;; - not in a string and after comment-start?
|
|
|
1488 (and (not (nth 3 parse-state))
|
|
|
1489 comment-start
|
|
|
1490 (equal comment-start
|
|
|
1491 (char-to-string (preceding-char)))))
|
|
|
1492 ;; get around a bug in forward-line in versions <= 18.57
|
|
|
1493 (if (or (> (forward-line 1) 0) (eobp))
|
|
|
1494 (setq not-done nil))
|
|
|
1495 ;; else:
|
|
|
1496 ;; if we are at beginning of code line, skip any
|
|
|
1497 ;; whitespace, labels and tab continuation markers.
|
|
|
1498 (if (bolp) (skip-chars-forward " \t0-9"))
|
|
|
1499 ;; if we are in column <= 5 now, check for continuation char
|
|
|
1500 (cond ((= 5 (current-column)) (forward-char 1))
|
|
|
1501 ((and (< (current-column) 5)
|
|
|
1502 (equal fortran-continuation-string
|
|
|
1503 (char-to-string (following-char)))
|
|
|
1504 (forward-char 1))))
|
|
|
1505 ;; find out parse-limit from here
|
|
|
1506 (setq end-of-line (save-excursion (end-of-line)(point)))
|
|
|
1507 (setq parse-limit (min where end-of-line))
|
|
|
1508 ;; parse max up to comment-start, if non-nil and in current line
|
|
|
1509 (if comment-start
|
|
|
1510 (save-excursion
|
|
|
1511 (if (re-search-forward quoted-comment-start end-of-line t)
|
|
|
1512 (setq parse-limit (min (point) parse-limit)))))
|
|
|
1513 ;; now parse if still in limits
|
|
|
1514 (if (< (point) where)
|
|
|
1515 (setq parse-state (parse-partial-sexp
|
|
|
1516 (point) parse-limit nil nil parse-state))
|
|
|
1517 (setq not-done nil))
|
|
|
1518 ))
|
|
|
1519 ;; result is
|
|
|
1520 (nth 3 parse-state))))))
|
|
|
1521
|
|
|
1522 (defun fortran-auto-fill-mode (arg)
|
|
|
1523 "Toggle fortran-auto-fill mode.
|
|
|
1524 With ARG, turn `fortran-auto-fill' mode on iff ARG is positive.
|
|
|
1525 In `fortran-auto-fill' mode, inserting a space at a column beyond `fill-column'
|
|
|
1526 automatically breaks the line at a previous space."
|
|
|
1527 (interactive "P")
|
|
|
1528 (prog1 (setq auto-fill-function
|
|
|
1529 (if (if (null arg)
|
|
|
1530 (not auto-fill-function)
|
|
|
1531 (> (prefix-numeric-value arg) 0))
|
|
|
1532 'fortran-do-auto-fill
|
|
|
1533 nil))
|
|
|
1534 (force-mode-line-update)))
|
|
|
1535
|
|
|
1536 (defun fortran-do-auto-fill ()
|
|
|
1537 (if (> (current-column) fill-column)
|
|
|
1538 (fortran-indent-line)))
|
|
|
1539
|
|
|
1540 (defun fortran-fill ()
|
|
|
1541 (interactive)
|
|
|
1542 (let* ((opoint (point))
|
|
|
1543 (bol (save-excursion (beginning-of-line) (point)))
|
|
|
1544 (eol (save-excursion (end-of-line) (point)))
|
|
|
1545 (bos (min eol (+ bol (fortran-current-line-indentation))))
|
|
|
1546 (quote
|
|
|
1547 (save-excursion
|
|
|
1548 (goto-char bol)
|
|
|
1549 (if (looking-at comment-line-start-skip)
|
|
|
1550 nil ; OK to break quotes on comment lines.
|
|
|
1551 (move-to-column fill-column)
|
|
|
1552 (cond ((fortran-is-in-string-p (point))
|
|
|
1553 (save-excursion (re-search-backward "[^']'[^']" bol t)
|
|
|
1554 (if fortran-break-before-delimiters
|
|
|
1555 (point)
|
|
|
1556 (1+ (point)))))
|
|
|
1557 (t nil)))))
|
|
|
1558 ;;
|
|
|
1559 ;; decide where to split the line. If a position for a quoted
|
|
|
1560 ;; string was found above then use that, else break the line
|
|
|
1561 ;; before the last delimiter.
|
|
|
1562 ;; Delimiters are whitespace, commas, and operators.
|
|
|
1563 ;; Will break before a pair of *'s.
|
|
|
1564 ;;
|
|
|
1565 (fill-point
|
|
|
1566 (or quote
|
|
|
1567 (save-excursion
|
|
|
1568 (move-to-column (1+ fill-column))
|
|
|
1569 (skip-chars-backward "^ \t\n,'+-/*=)"
|
|
|
1570 ;;; (if fortran-break-before-delimiters
|
|
|
1571 ;;; "^ \t\n,'+-/*=" "^ \t\n,'+-/*=)")
|
|
|
1572 )
|
|
|
1573 (if (<= (point) (1+ bos))
|
|
|
1574 (progn
|
|
|
1575 (move-to-column (1+ fill-column))
|
|
|
1576 ;;;what is this doing???
|
|
|
1577 (if (not (re-search-forward "[\t\n,'+-/*)=]" eol t))
|
|
|
1578 (goto-char bol))))
|
|
|
1579 (if (bolp)
|
|
|
1580 (re-search-forward "[ \t]" opoint t)
|
|
|
1581 (forward-char -1)
|
|
|
1582 (if (looking-at "'")
|
|
|
1583 (forward-char 1)
|
|
|
1584 (skip-chars-backward " \t\*")))
|
|
|
1585 (if fortran-break-before-delimiters
|
|
|
1586 (point)
|
|
|
1587 (1+ (point))))))
|
|
|
1588 )
|
|
|
1589 ;; if we are in an in-line comment, don't break unless the
|
|
|
1590 ;; line of code is longer than it should be. Otherwise
|
|
|
1591 ;; break the line at the column computed above.
|
|
|
1592 ;;
|
|
|
1593 ;; Need to use fortran-find-comment-start-skip to make sure that quoted !'s
|
|
|
1594 ;; don't prevent a break.
|
|
|
1595 (if (not (or (save-excursion
|
|
|
1596 (if (and (re-search-backward comment-start-skip bol t)
|
|
|
1597 (not (fortran-is-in-string-p (point))))
|
|
|
1598 (progn
|
|
|
1599 (skip-chars-backward " \t")
|
|
|
1600 (< (current-column) (1+ fill-column)))))
|
|
|
1601 (save-excursion
|
|
|
1602 (goto-char fill-point)
|
|
|
1603 (bolp))))
|
|
|
1604 (if (> (save-excursion
|
|
|
1605 (goto-char fill-point) (current-column))
|
|
|
1606 (1+ fill-column))
|
|
|
1607 (progn (goto-char fill-point)
|
|
|
1608 (fortran-break-line))
|
|
|
1609 (save-excursion
|
|
|
1610 (if (> (save-excursion
|
|
|
1611 (goto-char fill-point)
|
|
|
1612 (current-column))
|
|
|
1613 (+ (calculate-fortran-indent) fortran-continuation-indent))
|
|
|
1614 (progn
|
|
|
1615 (goto-char fill-point)
|
|
|
1616 (fortran-break-line))))))
|
|
|
1617 ))
|
|
|
1618 (defun fortran-break-line ()
|
|
|
1619 (let ((opoint (point))
|
|
|
1620 (bol (save-excursion (beginning-of-line) (point)))
|
|
|
1621 (eol (save-excursion (end-of-line) (point)))
|
|
|
1622 (comment-string nil))
|
|
|
1623
|
|
|
1624 (save-excursion
|
|
|
1625 (if (and comment-start-skip (fortran-find-comment-start-skip))
|
|
|
1626 (progn
|
|
|
1627 (re-search-backward comment-start-skip bol t)
|
|
|
1628 (setq comment-string (buffer-substring (point) eol))
|
|
|
1629 (delete-region (point) eol))))
|
|
|
1630 ;;; Forward line 1 really needs to go to next non white line
|
|
|
1631 (if (save-excursion (forward-line 1)
|
|
|
1632 (or (looking-at " [^ 0\n]")
|
|
|
1633 (looking-at "\t[1-9]")))
|
|
|
1634 (progn
|
|
|
1635 (end-of-line)
|
|
|
1636 (delete-region (point) (match-end 0))
|
|
|
1637 (delete-horizontal-space)
|
|
|
1638 (fortran-fill))
|
|
|
1639 (fortran-split-line))
|
|
|
1640 (if comment-string
|
|
|
1641 (save-excursion
|
|
|
1642 (goto-char bol)
|
|
|
1643 (end-of-line)
|
|
|
1644 (delete-horizontal-space)
|
|
|
1645 (indent-to (fortran-comment-hook))
|
|
|
1646 (insert comment-string)))))
|
|
|
1647
|
|
|
1648 (defun fortran-analyze-file-format ()
|
|
|
1649 "Returns nil if fixed format is used, t if TAB formatting is used.
|
|
|
1650 Use `fortran-tab-mode-default' if no non-comment statements are found in the
|
|
|
1651 file before the end or the first `fortran-analyze-depth' lines."
|
|
|
1652 (let ((i 0))
|
|
|
1653 (save-excursion
|
|
|
1654 (goto-char (point-min))
|
|
|
1655 (setq i 0)
|
|
|
1656 (while (not (or
|
|
|
1657 (eobp)
|
|
|
1658 (looking-at "\t")
|
|
|
1659 (looking-at " ")
|
|
|
1660 (> i fortran-analyze-depth)))
|
|
|
1661 (forward-line)
|
|
|
1662 (setq i (1+ i)))
|
|
|
1663 (cond
|
|
|
1664 ((looking-at "\t") t)
|
|
|
1665 ((looking-at " ") nil)
|
|
|
1666 (fortran-tab-mode-default t)
|
|
|
1667 (t nil)))))
|
|
|
1668
|
|
|
1669 (or (assq 'fortran-tab-mode-string minor-mode-alist)
|
|
|
1670 (setq minor-mode-alist (cons
|
|
|
1671 '(fortran-tab-mode-string
|
|
|
1672 (indent-tabs-mode fortran-tab-mode-string))
|
|
|
1673 minor-mode-alist)))
|
|
|
1674
|
|
|
1675 (provide 'fortran)
|
|
|
1676
|
|
|
1677 ;;; fortran.el ends here
|
|
|
1678
|
