HCoop / bpt / emacs.git / blame
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| e5167999 ER |
1 | ;;; fortran.el --- Fortran mode for GNU Emacs |
| 2 | ||
| 5a8d870b | 3 | ;;; Copyright (c) 1986, 1993, 1994 Free Software Foundation, Inc. |
| 9750e079 | 4 | |
| e5167999 ER |
5 | ;; Author: Michael D. Prange <prange@erl.mit.edu> |
| 6 | ;; Maintainer: bug-fortran-mode@erl.mit.edu | |
| 5a8d870b | 7 | ;; Version 1.30.4 (January 20, 1994) |
| fd7fa35a | 8 | ;; Keywords: languages |
| 1a06eabd | 9 | |
| e5167999 ER |
10 | ;; This file is part of GNU Emacs. |
| 11 | ||
| 12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
| 13 | ;; it under the terms of the GNU General Public License as published by | |
| 14 | ;; the Free Software Foundation; either version 2, or (at your option) | |
| 15 | ;; any later version. | |
| 16 | ||
| 17 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
| 18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 | ;; GNU General Public License for more details. | |
| 21 | ||
| 22 | ;; You should have received a copy of the GNU General Public License | |
| 23 | ;; along with GNU Emacs; see the file COPYING. If not, write to | |
| 24 | ;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. | |
| 25 | ||
| 26 | ;;; Commentary: | |
| 27 | ||
| 23029d77 JB |
28 | ;; Fortran mode has been upgraded and is now maintained by Stephen A. Wood |
| 29 | ;; (saw@cebaf.gov). It now will use either fixed format continuation line | |
| eb8c3be9 | 30 | ;; markers (character in 6th column), or tab format continuation line style |
| 23029d77 JB |
31 | ;; (digit after a TAB character.) A auto-fill mode has been added to |
| 32 | ;; automatically wrap fortran lines that get too long. | |
| 33 | ||
| 34 | ;; We acknowledge many contributions and valuable suggestions by | |
| b8cbdf43 RS |
35 | ;; Lawrence R. Dodd, Ralf Fassel, Ralph Finch, Stephen Gildea, |
| 36 | ;; Dr. Anil Gokhale, Ulrich Mueller, Mark Neale, Eric Prestemon, | |
| 37 | ;; Gary Sabot and Richard Stallman. | |
| 38 | ||
| 23029d77 | 39 | ;;; This file may be used with GNU Emacs version 18.xx if the following |
| eb8c3be9 | 40 | ;;; variable and function substitutions are made. |
| 4632a893 JB |
41 | ;;; Replace: |
| 42 | ;;; frame-width with screen-width | |
| 43 | ;;; auto-fill-function with auto-fill-hook | |
| b56eb7c9 | 44 | ;;; comment-indent-function with comment-indent-hook |
| 4632a893 | 45 | ;;; (setq unread-command-events (list c)) with (setq unread-command-char c) |
| 3dd63760 JB |
46 | |
| 47 | ;;; Bugs to bug-fortran-mode@erl.mit.edu | |
| 48 | ||
| 5a8d870b | 49 | (defconst fortran-mode-version "version 1.30.4") |
| b8cbdf43 | 50 | |
| e5167999 ER |
51 | ;;; Code: |
| 52 | ||
| 3dd63760 JB |
53 | ;;;###autoload |
| 54 | (defvar fortran-tab-mode-default nil | |
| e80f2147 RS |
55 | "*Default tabbing/carriage control style for empty files in Fortran mode. |
| 56 | A value of t specifies tab-digit style of continuation control. | |
| 57 | A value of nil specifies that continuation lines are marked | |
| 58 | with a character in column 6.") | |
| 59 | ||
| e80f2147 | 60 | ;; Buffer local, used to display mode line. |
| 23029d77 | 61 | (defvar fortran-tab-mode-string nil |
| 5a8d870b | 62 | "String to appear in mode line when TAB format mode is on.") |
| 3dd63760 JB |
63 | |
| 64 | (defvar fortran-do-indent 3 | |
| b8cbdf43 | 65 | "*Extra indentation applied to DO blocks.") |
| 3dd63760 JB |
66 | |
| 67 | (defvar fortran-if-indent 3 | |
| b8cbdf43 RS |
68 | "*Extra indentation applied to IF blocks.") |
| 69 | ||
| 70 | (defvar fortran-structure-indent 3 | |
| 5a8d870b | 71 | "*Extra indentation applied to STRUCTURE, UNION, MAP and INTERFACE blocks.") |
| 3dd63760 JB |
72 | |
| 73 | (defvar fortran-continuation-indent 5 | |
| b8cbdf43 | 74 | "*Extra indentation applied to Fortran continuation lines.") |
| 3dd63760 JB |
75 | |
| 76 | (defvar fortran-comment-indent-style 'fixed | |
| 77 | "*nil forces comment lines not to be touched, | |
| 23029d77 JB |
78 | 'fixed makes fixed comment indentation to `fortran-comment-line-extra-indent' |
| 79 | columns beyond `fortran-minimum-statement-indent-fixed' (for | |
| 80 | `indent-tabs-mode' of nil) or `fortran-minimum-statement-indent-tab' (for | |
| 81 | `indent-tabs-mode' of t), and 'relative indents to current | |
| 82 | Fortran indentation plus `fortran-comment-line-extra-indent'.") | |
| 3dd63760 | 83 | |
| 23029d77 | 84 | (defvar fortran-comment-line-extra-indent 0 |
| b8cbdf43 | 85 | "*Amount of extra indentation for text within full-line comments.") |
| 3dd63760 JB |
86 | |
| 87 | (defvar comment-line-start nil | |
| 88 | "*Delimiter inserted to start new full-line comment.") | |
| 89 | ||
| 90 | (defvar comment-line-start-skip nil | |
| 91 | "*Regexp to match the start of a full-line comment.") | |
| 92 | ||
| 23029d77 JB |
93 | (defvar fortran-minimum-statement-indent-fixed 6 |
| 94 | "*Minimum statement indentation for fixed format continuation style.") | |
| 95 | ||
| 96 | (defvar fortran-minimum-statement-indent-tab (max tab-width 6) | |
| 97 | "*Minimum statement indentation for TAB format continuation style.") | |
| 3dd63760 JB |
98 | |
| 99 | ;; Note that this is documented in the v18 manuals as being a string | |
| 100 | ;; of length one rather than a single character. | |
| 101 | ;; The code in this file accepts either format for compatibility. | |
| 102 | (defvar fortran-comment-indent-char " " | |
| 103 | "*Single-character string inserted for Fortran comment indentation. | |
| 104 | Normally a space.") | |
| 105 | ||
| 106 | (defvar fortran-line-number-indent 1 | |
| 107 | "*Maximum indentation for Fortran line numbers. | |
| 108 | 5 means right-justify them within their five-column field.") | |
| 109 | ||
| 110 | (defvar fortran-check-all-num-for-matching-do nil | |
| b8cbdf43 | 111 | "*Non-nil causes all numbered lines to be treated as possible DO loop ends.") |
| 3dd63760 JB |
112 | |
| 113 | (defvar fortran-blink-matching-if nil | |
| 947388af RS |
114 | "*From a Fortran ENDIF statement, blink the matching IF statement. |
| 115 | Also, from an ENDDO statement, blink on matching DO [WHILE] statement.") | |
| 3dd63760 JB |
116 | |
| 117 | (defvar fortran-continuation-string "$" | |
| b8cbdf43 | 118 | "*Single-character string used for Fortran continuation lines. |
| 3dd63760 JB |
119 | In fixed format continuation style, this character is inserted in |
| 120 | column 6 by \\[fortran-split-line] to begin a continuation line. | |
| 121 | Also, if \\[fortran-indent-line] finds this at the beginning of a line, it will | |
| 122 | convert the line into a continuation line of the appropriate style. | |
| 123 | Normally $.") | |
| 124 | ||
| 125 | (defvar fortran-comment-region "c$$$" | |
| 126 | "*String inserted by \\[fortran-comment-region]\ | |
| 127 | at start of each line in region.") | |
| 128 | ||
| 129 | (defvar fortran-electric-line-number t | |
| 130 | "*Non-nil causes line number digits to be moved to the correct column as\ | |
| 131 | typed.") | |
| 132 | ||
| 133 | (defvar fortran-startup-message t | |
| 134 | "*Non-nil displays a startup message when Fortran mode is first called.") | |
| 135 | ||
| 23029d77 JB |
136 | (defvar fortran-column-ruler-fixed |
| 137 | "0 4 6 10 20 30 40 5\ | |
| 138 | 0 60 70\n\ | |
| 139 | [ ]|{ | | | | | | | | \ | |
| 140 | | | | | |}\n" | |
| 141 | "*String displayed above current line by \\[fortran-column-ruler]. | |
| 5a8d870b | 142 | This variable used in fixed format mode.") |
| 23029d77 JB |
143 | |
| 144 | (defvar fortran-column-ruler-tab | |
| 145 | "0 810 20 30 40 5\ | |
| 146 | 0 60 70\n\ | |
| 147 | [ ]| { | | | | | | | | \ | |
| 148 | | | | | |}\n" | |
| 149 | "*String displayed above current line by \\[fortran-column-ruler]. | |
| 5a8d870b | 150 | This variable used in TAB format mode.") |
| 3dd63760 JB |
151 | |
| 152 | (defconst bug-fortran-mode "bug-fortran-mode@erl.mit.edu" | |
| 153 | "Address of mailing list for Fortran mode bugs.") | |
| 154 | ||
| 3dd63760 JB |
155 | (defvar fortran-mode-syntax-table nil |
| 156 | "Syntax table in use in Fortran mode buffers.") | |
| 157 | ||
| 158 | (defvar fortran-analyze-depth 100 | |
| 23029d77 | 159 | "Number of lines to scan to determine whether to use fixed or TAB format\ |
| 3dd63760 JB |
160 | style.") |
| 161 | ||
| b8cbdf43 | 162 | (defvar fortran-break-before-delimiters t |
| eb8c3be9 | 163 | "*Non-nil causes `fortran-do-auto-fill' to break lines before delimiters.") |
| b8cbdf43 | 164 | |
| 3dd63760 JB |
165 | (if fortran-mode-syntax-table |
| 166 | () | |
| 167 | (setq fortran-mode-syntax-table (make-syntax-table)) | |
| 168 | (modify-syntax-entry ?\; "w" fortran-mode-syntax-table) | |
| 169 | (modify-syntax-entry ?\r " " fortran-mode-syntax-table) | |
| 170 | (modify-syntax-entry ?+ "." fortran-mode-syntax-table) | |
| 171 | (modify-syntax-entry ?- "." fortran-mode-syntax-table) | |
| 172 | (modify-syntax-entry ?= "." fortran-mode-syntax-table) | |
| 173 | (modify-syntax-entry ?* "." fortran-mode-syntax-table) | |
| 174 | (modify-syntax-entry ?/ "." fortran-mode-syntax-table) | |
| 175 | (modify-syntax-entry ?\' "\"" fortran-mode-syntax-table) | |
| 176 | (modify-syntax-entry ?\" "\"" fortran-mode-syntax-table) | |
| 177 | (modify-syntax-entry ?\\ "/" fortran-mode-syntax-table) | |
| 178 | (modify-syntax-entry ?. "w" fortran-mode-syntax-table) | |
| b8cbdf43 | 179 | (modify-syntax-entry ?_ "w" fortran-mode-syntax-table) |
| 3dd63760 JB |
180 | (modify-syntax-entry ?\n ">" fortran-mode-syntax-table)) |
| 181 | ||
| 182 | (defvar fortran-mode-map () | |
| b8cbdf43 | 183 | "Keymap used in Fortran mode.") |
| 3dd63760 JB |
184 | (if fortran-mode-map |
| 185 | () | |
| 186 | (setq fortran-mode-map (make-sparse-keymap)) | |
| 187 | (define-key fortran-mode-map ";" 'fortran-abbrev-start) | |
| 188 | (define-key fortran-mode-map "\C-c;" 'fortran-comment-region) | |
| 189 | (define-key fortran-mode-map "\e\C-a" 'beginning-of-fortran-subprogram) | |
| 190 | (define-key fortran-mode-map "\e\C-e" 'end-of-fortran-subprogram) | |
| 191 | (define-key fortran-mode-map "\e;" 'fortran-indent-comment) | |
| 192 | (define-key fortran-mode-map "\e\C-h" 'mark-fortran-subprogram) | |
| 193 | (define-key fortran-mode-map "\e\n" 'fortran-split-line) | |
| aa4ed68c | 194 | (define-key fortran-mode-map "\n" 'fortran-indent-new-line) |
| 3dd63760 JB |
195 | (define-key fortran-mode-map "\e\C-q" 'fortran-indent-subprogram) |
| 196 | (define-key fortran-mode-map "\C-c\C-w" 'fortran-window-create-momentarily) | |
| 197 | (define-key fortran-mode-map "\C-c\C-r" 'fortran-column-ruler) | |
| 198 | (define-key fortran-mode-map "\C-c\C-p" 'fortran-previous-statement) | |
| 199 | (define-key fortran-mode-map "\C-c\C-n" 'fortran-next-statement) | |
| 200 | (define-key fortran-mode-map "\t" 'fortran-indent-line) | |
| 201 | (define-key fortran-mode-map "0" 'fortran-electric-line-number) | |
| 202 | (define-key fortran-mode-map "1" 'fortran-electric-line-number) | |
| 203 | (define-key fortran-mode-map "2" 'fortran-electric-line-number) | |
| 204 | (define-key fortran-mode-map "3" 'fortran-electric-line-number) | |
| 205 | (define-key fortran-mode-map "4" 'fortran-electric-line-number) | |
| 206 | (define-key fortran-mode-map "5" 'fortran-electric-line-number) | |
| 207 | (define-key fortran-mode-map "6" 'fortran-electric-line-number) | |
| 208 | (define-key fortran-mode-map "7" 'fortran-electric-line-number) | |
| 209 | (define-key fortran-mode-map "8" 'fortran-electric-line-number) | |
| 210 | (define-key fortran-mode-map "9" 'fortran-electric-line-number)) | |
| 211 | \f | |
| 212 | (defvar fortran-mode-abbrev-table nil) | |
| 213 | (if fortran-mode-abbrev-table | |
| 214 | () | |
| 215 | (let ((ac abbrevs-changed)) | |
| 216 | (define-abbrev-table 'fortran-mode-abbrev-table ()) | |
| 217 | (define-abbrev fortran-mode-abbrev-table ";au" "automatic" nil) | |
| 218 | (define-abbrev fortran-mode-abbrev-table ";b" "byte" nil) | |
| b8cbdf43 | 219 | (define-abbrev fortran-mode-abbrev-table ";bd" "block data" nil) |
| 3dd63760 JB |
220 | (define-abbrev fortran-mode-abbrev-table ";ch" "character" nil) |
| 221 | (define-abbrev fortran-mode-abbrev-table ";cl" "close" nil) | |
| 222 | (define-abbrev fortran-mode-abbrev-table ";c" "continue" nil) | |
| 223 | (define-abbrev fortran-mode-abbrev-table ";cm" "common" nil) | |
| 224 | (define-abbrev fortran-mode-abbrev-table ";cx" "complex" nil) | |
| 225 | (define-abbrev fortran-mode-abbrev-table ";df" "define" nil) | |
| 226 | (define-abbrev fortran-mode-abbrev-table ";di" "dimension" nil) | |
| 227 | (define-abbrev fortran-mode-abbrev-table ";do" "double" nil) | |
| 228 | (define-abbrev fortran-mode-abbrev-table ";dc" "double complex" nil) | |
| 229 | (define-abbrev fortran-mode-abbrev-table ";dp" "double precision" nil) | |
| 230 | (define-abbrev fortran-mode-abbrev-table ";dw" "do while" nil) | |
| 231 | (define-abbrev fortran-mode-abbrev-table ";e" "else" nil) | |
| 232 | (define-abbrev fortran-mode-abbrev-table ";ed" "enddo" nil) | |
| 233 | (define-abbrev fortran-mode-abbrev-table ";el" "elseif" nil) | |
| 234 | (define-abbrev fortran-mode-abbrev-table ";en" "endif" nil) | |
| 235 | (define-abbrev fortran-mode-abbrev-table ";eq" "equivalence" nil) | |
| b8cbdf43 | 236 | (define-abbrev fortran-mode-abbrev-table ";ew" "endwhere" nil) |
| 3dd63760 JB |
237 | (define-abbrev fortran-mode-abbrev-table ";ex" "external" nil) |
| 238 | (define-abbrev fortran-mode-abbrev-table ";ey" "entry" nil) | |
| 239 | (define-abbrev fortran-mode-abbrev-table ";f" "format" nil) | |
| 240 | (define-abbrev fortran-mode-abbrev-table ";fa" ".false." nil) | |
| 241 | (define-abbrev fortran-mode-abbrev-table ";fu" "function" nil) | |
| 242 | (define-abbrev fortran-mode-abbrev-table ";g" "goto" nil) | |
| 243 | (define-abbrev fortran-mode-abbrev-table ";im" "implicit" nil) | |
| 244 | (define-abbrev fortran-mode-abbrev-table ";ib" "implicit byte" nil) | |
| 245 | (define-abbrev fortran-mode-abbrev-table ";ic" "implicit complex" nil) | |
| 246 | (define-abbrev fortran-mode-abbrev-table ";ich" "implicit character" nil) | |
| 247 | (define-abbrev fortran-mode-abbrev-table ";ii" "implicit integer" nil) | |
| 248 | (define-abbrev fortran-mode-abbrev-table ";il" "implicit logical" nil) | |
| 249 | (define-abbrev fortran-mode-abbrev-table ";ir" "implicit real" nil) | |
| 250 | (define-abbrev fortran-mode-abbrev-table ";inc" "include" nil) | |
| 251 | (define-abbrev fortran-mode-abbrev-table ";in" "integer" nil) | |
| 252 | (define-abbrev fortran-mode-abbrev-table ";intr" "intrinsic" nil) | |
| 253 | (define-abbrev fortran-mode-abbrev-table ";l" "logical" nil) | |
| 254 | (define-abbrev fortran-mode-abbrev-table ";n" "namelist" nil) | |
| 255 | (define-abbrev fortran-mode-abbrev-table ";o" "open" nil) ; was ;op | |
| 256 | (define-abbrev fortran-mode-abbrev-table ";pa" "parameter" nil) | |
| 257 | (define-abbrev fortran-mode-abbrev-table ";pr" "program" nil) | |
| 258 | (define-abbrev fortran-mode-abbrev-table ";ps" "pause" nil) | |
| 259 | (define-abbrev fortran-mode-abbrev-table ";p" "print" nil) | |
| 260 | (define-abbrev fortran-mode-abbrev-table ";rc" "record" nil) | |
| 261 | (define-abbrev fortran-mode-abbrev-table ";re" "real" nil) | |
| 262 | (define-abbrev fortran-mode-abbrev-table ";r" "read" nil) | |
| 263 | (define-abbrev fortran-mode-abbrev-table ";rt" "return" nil) | |
| 264 | (define-abbrev fortran-mode-abbrev-table ";rw" "rewind" nil) | |
| 265 | (define-abbrev fortran-mode-abbrev-table ";s" "stop" nil) | |
| 266 | (define-abbrev fortran-mode-abbrev-table ";sa" "save" nil) | |
| 267 | (define-abbrev fortran-mode-abbrev-table ";st" "structure" nil) | |
| 268 | (define-abbrev fortran-mode-abbrev-table ";sc" "static" nil) | |
| 269 | (define-abbrev fortran-mode-abbrev-table ";su" "subroutine" nil) | |
| 270 | (define-abbrev fortran-mode-abbrev-table ";tr" ".true." nil) | |
| 271 | (define-abbrev fortran-mode-abbrev-table ";ty" "type" nil) | |
| 272 | (define-abbrev fortran-mode-abbrev-table ";vo" "volatile" nil) | |
| 273 | (define-abbrev fortran-mode-abbrev-table ";w" "write" nil) | |
| b8cbdf43 | 274 | (define-abbrev fortran-mode-abbrev-table ";wh" "where" nil) |
| 3dd63760 JB |
275 | (setq abbrevs-changed ac))) |
| 276 | \f | |
| 277 | ;;;###autoload | |
| 278 | (defun fortran-mode () | |
| b8cbdf43 RS |
279 | "Major mode for editing Fortran code. |
| 280 | \\[fortran-indent-line] indents the current Fortran line correctly. | |
| 281 | DO statements must not share a common CONTINUE. | |
| 3dd63760 | 282 | |
| b8cbdf43 | 283 | Type ;? or ;\\[help-command] to display a list of built-in\ |
| 3dd63760 JB |
284 | abbrevs for Fortran keywords. |
| 285 | ||
| 286 | Key definitions: | |
| 287 | \\{fortran-mode-map} | |
| 288 | ||
| 289 | Variables controlling indentation style and extra features: | |
| 290 | ||
| 291 | comment-start | |
| 292 | Normally nil in Fortran mode. If you want to use comments | |
| 293 | starting with `!', set this to the string \"!\". | |
| 294 | fortran-do-indent | |
| 295 | Extra indentation within do blocks. (default 3) | |
| 296 | fortran-if-indent | |
| 297 | Extra indentation within if blocks. (default 3) | |
| b8cbdf43 | 298 | fortran-structure-indent |
| 5a8d870b RS |
299 | Extra indentation within structure, union, map and interface blocks. |
| 300 | (default 3) | |
| 3dd63760 | 301 | fortran-continuation-indent |
| b8cbdf43 | 302 | Extra indentation applied to continuation statements. (default 5) |
| 23029d77 | 303 | fortran-comment-line-extra-indent |
| b8cbdf43 | 304 | Amount of extra indentation for text within full-line comments. (default 0) |
| 3dd63760 JB |
305 | fortran-comment-indent-style |
| 306 | nil means don't change indentation of text in full-line comments, | |
| 23029d77 JB |
307 | fixed means indent that text at `fortran-comment-line-extra-indent' beyond |
| 308 | the value of `fortran-minimum-statement-indent-fixed' (for fixed | |
| 309 | format continuation style) or `fortran-minimum-statement-indent-tab' | |
| 310 | (for TAB format continuation style). | |
| 311 | relative means indent at `fortran-comment-line-extra-indent' beyond the | |
| 3dd63760 JB |
312 | indentation for a line of code. |
| 313 | (default 'fixed) | |
| 314 | fortran-comment-indent-char | |
| b8cbdf43 | 315 | Single-character string to be inserted instead of space for |
| 3dd63760 | 316 | full-line comment indentation. (default \" \") |
| 23029d77 JB |
317 | fortran-minimum-statement-indent-fixed |
| 318 | Minimum indentation for Fortran statements in fixed format mode. (def.6) | |
| 319 | fortran-minimum-statement-indent-tab | |
| 320 | Minimum indentation for Fortran statements in TAB format mode. (default 9) | |
| 3dd63760 JB |
321 | fortran-line-number-indent |
| 322 | Maximum indentation for line numbers. A line number will get | |
| 323 | less than this much indentation if necessary to avoid reaching | |
| 324 | column 5. (default 1) | |
| 325 | fortran-check-all-num-for-matching-do | |
| b8cbdf43 | 326 | Non-nil causes all numbered lines to be treated as possible \"continue\" |
| 3dd63760 JB |
327 | statements. (default nil) |
| 328 | fortran-blink-matching-if | |
| b8cbdf43 | 329 | From a Fortran ENDIF statement, blink the matching IF statement. |
| 947388af | 330 | Also, from an ENDDO statement, blink on matching DO [WHILE] statement. |
| 3dd63760 JB |
331 | (default nil) |
| 332 | fortran-continuation-string | |
| 333 | Single-character string to be inserted in column 5 of a continuation | |
| 334 | line. (default \"$\") | |
| 335 | fortran-comment-region | |
| 336 | String inserted by \\[fortran-comment-region] at start of each line in | |
| 337 | region. (default \"c$$$\") | |
| 338 | fortran-electric-line-number | |
| 339 | Non-nil causes line number digits to be moved to the correct column | |
| 340 | as typed. (default t) | |
| b8cbdf43 | 341 | fortran-break-before-delimiters |
| eb8c3be9 | 342 | Non-nil causes `fortran-do-auto-fill' breaks lines before delimiters. |
| b8cbdf43 | 343 | (default t) |
| 3dd63760 JB |
344 | fortran-startup-message |
| 345 | Set to nil to inhibit message first time Fortran mode is used. | |
| 346 | ||
| b8cbdf43 | 347 | Turning on Fortran mode calls the value of the variable `fortran-mode-hook' |
| 3dd63760 JB |
348 | with no args, if that value is non-nil." |
| 349 | (interactive) | |
| 350 | (kill-all-local-variables) | |
| 351 | (if fortran-startup-message | |
| b8cbdf43 | 352 | (message "Emacs Fortran mode %s. Bugs to %s" |
| 3dd63760 JB |
353 | fortran-mode-version bug-fortran-mode)) |
| 354 | (setq fortran-startup-message nil) | |
| 355 | (setq local-abbrev-table fortran-mode-abbrev-table) | |
| 356 | (set-syntax-table fortran-mode-syntax-table) | |
| b8cbdf43 RS |
357 | (make-local-variable 'fortran-break-before-delimiters) |
| 358 | (setq fortran-break-before-delimiters t) | |
| 3dd63760 JB |
359 | (make-local-variable 'indent-line-function) |
| 360 | (setq indent-line-function 'fortran-indent-line) | |
| e41b2db1 ER |
361 | (make-local-variable 'comment-indent-function) |
| 362 | (setq comment-indent-function 'fortran-comment-hook) | |
| 3dd63760 JB |
363 | (make-local-variable 'comment-line-start-skip) |
| 364 | (setq comment-line-start-skip | |
| b8cbdf43 | 365 | "^[Cc*]\\(\\([^ \t\n]\\)\\2\\2*\\)?[ \t]*\\|^#.*") |
| 3dd63760 JB |
366 | (make-local-variable 'comment-line-start) |
| 367 | (setq comment-line-start "c") | |
| 368 | (make-local-variable 'comment-start-skip) | |
| 369 | (setq comment-start-skip "![ \t]*") | |
| 370 | (make-local-variable 'comment-start) | |
| 371 | (setq comment-start nil) | |
| 372 | (make-local-variable 'require-final-newline) | |
| 373 | (setq require-final-newline t) | |
| 374 | (make-local-variable 'abbrev-all-caps) | |
| 375 | (setq abbrev-all-caps t) | |
| 376 | (make-local-variable 'indent-tabs-mode) | |
| 377 | (setq indent-tabs-mode nil) | |
| 23029d77 | 378 | ;;;(setq abbrev-mode t) ; ?? (abbrev-mode 1) instead?? |
| b8cbdf43 | 379 | (setq fill-column 72) ; Already local? |
| 3dd63760 JB |
380 | (use-local-map fortran-mode-map) |
| 381 | (setq mode-name "Fortran") | |
| 382 | (setq major-mode 'fortran-mode) | |
| 23029d77 JB |
383 | ;;;(make-local-variable 'fortran-tab-mode) |
| 384 | (make-local-variable 'fortran-comment-line-extra-indent) | |
| 385 | (make-local-variable 'fortran-minimum-statement-indent-fixed) | |
| 386 | (make-local-variable 'fortran-minimum-statement-indent-tab) | |
| 387 | (make-local-variable 'fortran-column-ruler-fixed) | |
| 388 | (make-local-variable 'fortran-column-ruler-tab) | |
| 3dd63760 | 389 | (make-local-variable 'fortran-tab-mode-string) |
| 23029d77 JB |
390 | (setq fortran-tab-mode-string " TAB-format") |
| 391 | (setq indent-tabs-mode (fortran-analyze-file-format)) | |
| 3dd63760 JB |
392 | (run-hooks 'fortran-mode-hook)) |
| 393 | \f | |
| 394 | (defun fortran-comment-hook () | |
| 395 | (save-excursion | |
| 396 | (skip-chars-backward " \t") | |
| 397 | (max (+ 1 (current-column)) | |
| 398 | comment-column))) | |
| 399 | ||
| 400 | (defun fortran-indent-comment () | |
| 401 | "Align or create comment on current line. | |
| 402 | Existing comments of all types are recognized and aligned. | |
| 403 | If the line has no comment, a side-by-side comment is inserted and aligned | |
| 404 | if the value of comment-start is not nil. | |
| 405 | Otherwise, a separate-line comment is inserted, on this line | |
| 406 | or on a new line inserted before this line if this line is not blank." | |
| 407 | (interactive) | |
| 408 | (beginning-of-line) | |
| 409 | ;; Recognize existing comments of either kind. | |
| 410 | (cond ((looking-at comment-line-start-skip) | |
| 411 | (fortran-indent-line)) | |
| 23029d77 | 412 | ((fortran-find-comment-start-skip) ; catches any inline comment and |
| b8cbdf43 RS |
413 | ; leaves point after comment-start-skip |
| 414 | (if comment-start-skip | |
| 415 | (progn (goto-char (match-beginning 0)) | |
| 416 | (if (not (= (current-column) (fortran-comment-hook))) | |
| 417 | (progn (delete-horizontal-space) | |
| 418 | (indent-to (fortran-comment-hook))))) | |
| 419 | (end-of-line))) ; otherwise goto end of line or sth else? | |
| 3dd63760 JB |
420 | ;; No existing comment. |
| 421 | ;; If side-by-side comments are defined, insert one, | |
| 422 | ;; unless line is now blank. | |
| 423 | ((and comment-start (not (looking-at "^[ \t]*$"))) | |
| 424 | (end-of-line) | |
| 425 | (delete-horizontal-space) | |
| 426 | (indent-to (fortran-comment-hook)) | |
| 427 | (insert comment-start)) | |
| 428 | ;; Else insert separate-line comment, making a new line if nec. | |
| 429 | (t | |
| 430 | (if (looking-at "^[ \t]*$") | |
| 431 | (delete-horizontal-space) | |
| 432 | (beginning-of-line) | |
| 433 | (insert "\n") | |
| 434 | (forward-char -1)) | |
| 435 | (insert comment-line-start) | |
| 436 | (insert-char (if (stringp fortran-comment-indent-char) | |
| 437 | (aref fortran-comment-indent-char 0) | |
| b8cbdf43 | 438 | fortran-comment-indent-char) |
| 3dd63760 JB |
439 | (- (calculate-fortran-indent) (current-column)))))) |
| 440 | ||
| 441 | (defun fortran-comment-region (beg-region end-region arg) | |
| 442 | "Comments every line in the region. | |
| 443 | Puts fortran-comment-region at the beginning of every line in the region. | |
| 444 | BEG-REGION and END-REGION are args which specify the region boundaries. | |
| 445 | With non-nil ARG, uncomments the region." | |
| 446 | (interactive "*r\nP") | |
| 447 | (let ((end-region-mark (make-marker)) (save-point (point-marker))) | |
| 448 | (set-marker end-region-mark end-region) | |
| 449 | (goto-char beg-region) | |
| 450 | (beginning-of-line) | |
| 451 | (if (not arg) ;comment the region | |
| 452 | (progn (insert fortran-comment-region) | |
| 453 | (while (and (= (forward-line 1) 0) | |
| 454 | (< (point) end-region-mark)) | |
| 455 | (insert fortran-comment-region))) | |
| 456 | (let ((com (regexp-quote fortran-comment-region))) ;uncomment the region | |
| 457 | (if (looking-at com) | |
| 458 | (delete-region (point) (match-end 0))) | |
| 459 | (while (and (= (forward-line 1) 0) | |
| 460 | (< (point) end-region-mark)) | |
| 461 | (if (looking-at com) | |
| 462 | (delete-region (point) (match-end 0)))))) | |
| 463 | (goto-char save-point) | |
| 464 | (set-marker end-region-mark nil) | |
| 465 | (set-marker save-point nil))) | |
| 466 | \f | |
| 467 | (defun fortran-abbrev-start () | |
| b8cbdf43 | 468 | "Typing ;\\[help-command] or ;? lists all the Fortran abbrevs. |
| 3dd63760 JB |
469 | Any other key combination is executed normally." |
| 470 | (interactive) | |
| 471 | (let (c) | |
| 472 | (insert last-command-char) | |
| d654e8ce RS |
473 | (if (or (eq (setq c (read-event)) ??) ;insert char if not equal to `?' |
| 474 | (eq c help-char)) | |
| 3dd63760 | 475 | (fortran-abbrev-help) |
| dbc4e1c1 | 476 | (setq unread-command-events (list c))))) |
| 3dd63760 JB |
477 | |
| 478 | (defun fortran-abbrev-help () | |
| 479 | "List the currently defined abbrevs in Fortran mode." | |
| 480 | (interactive) | |
| 481 | (message "Listing abbrev table...") | |
| e80f2147 | 482 | (display-buffer (fortran-prepare-abbrev-list-buffer)) |
| 3dd63760 JB |
483 | (message "Listing abbrev table...done")) |
| 484 | ||
| e80f2147 RS |
485 | (defun fortran-prepare-abbrev-list-buffer () |
| 486 | (save-excursion | |
| 487 | (set-buffer (get-buffer-create "*Abbrevs*")) | |
| 488 | (erase-buffer) | |
| 4632a893 | 489 | (insert-abbrev-table-description 'fortran-mode-abbrev-table t) |
| e80f2147 RS |
490 | (goto-char (point-min)) |
| 491 | (set-buffer-modified-p nil) | |
| 492 | (edit-abbrevs-mode)) | |
| 493 | (get-buffer-create "*Abbrevs*")) | |
| 494 | ||
| 3dd63760 JB |
495 | (defun fortran-column-ruler () |
| 496 | "Inserts a column ruler momentarily above current line, till next keystroke. | |
| 5a8d870b RS |
497 | The ruler is defined by the value of `fortran-column-ruler-fixed' when in fixed |
| 498 | format mode, and `fortran-column-ruler-tab' when in TAB format mode. | |
| 3dd63760 JB |
499 | The key typed is executed unless it is SPC." |
| 500 | (interactive) | |
| 501 | (momentary-string-display | |
| 23029d77 JB |
502 | (if indent-tabs-mode |
| 503 | fortran-column-ruler-tab | |
| 504 | fortran-column-ruler-fixed) | |
| 505 | (save-excursion | |
| 506 | (beginning-of-line) | |
| 507 | (if (eq (window-start (selected-window)) | |
| 508 | (window-point (selected-window))) | |
| 509 | (progn (forward-line) (point)) | |
| 510 | (point))) | |
| 3dd63760 JB |
511 | nil "Type SPC or any command to erase ruler.")) |
| 512 | ||
| 513 | (defun fortran-window-create () | |
| 514 | "Makes the window 72 columns wide. | |
| fe668515 | 515 | See also `fortran-window-create-momentarily'." |
| 3dd63760 JB |
516 | (interactive) |
| 517 | (condition-case error | |
| 518 | (progn | |
| 519 | (let ((window-min-width 2)) | |
| 23029d77 JB |
520 | (if (< (window-width) (frame-width)) |
| 521 | (enlarge-window-horizontally (- (frame-width) | |
| 3dd63760 JB |
522 | (window-width) 1))) |
| 523 | (split-window-horizontally 73) | |
| 524 | (other-window 1) | |
| 525 | (switch-to-buffer " fortran-window-extra" t) | |
| 526 | (select-window (previous-window)))) | |
| b8cbdf43 | 527 | (error (message "No room for Fortran window.") |
| 3dd63760 JB |
528 | 'error))) |
| 529 | ||
| 530 | (defun fortran-window-create-momentarily (&optional arg) | |
| 531 | "Momentarily makes the window 72 columns wide. | |
| 532 | Optional ARG non-nil and non-unity disables the momentary feature. | |
| fe668515 | 533 | See also `fortran-window-create'." |
| 3dd63760 JB |
534 | (interactive "p") |
| 535 | (if (or (not arg) | |
| 536 | (= arg 1)) | |
| 537 | (save-window-excursion | |
| 538 | (if (not (equal (fortran-window-create) 'error)) | |
| 539 | (progn (message "Type SPC to continue editing.") | |
| d654e8ce | 540 | (let ((char (read-event))) |
| 3dd63760 | 541 | (or (equal char (string-to-char " ")) |
| dbc4e1c1 | 542 | (setq unread-command-events (list char))))))) |
| 3dd63760 JB |
543 | (fortran-window-create))) |
| 544 | ||
| 545 | (defun fortran-split-line () | |
| 546 | "Break line at point and insert continuation marker and alignment." | |
| 547 | (interactive) | |
| 548 | (delete-horizontal-space) | |
| 549 | (if (save-excursion (beginning-of-line) (looking-at comment-line-start-skip)) | |
| 550 | (insert "\n" comment-line-start " ") | |
| 23029d77 | 551 | (if indent-tabs-mode |
| 3dd63760 JB |
552 | (progn |
| 553 | (insert "\n\t") | |
| 554 | (insert-char (fortran-numerical-continuation-char) 1)) | |
| b8cbdf43 RS |
555 | (insert "\n " fortran-continuation-string)));Space after \n important |
| 556 | (fortran-indent-line)) ;when the cont string is C, c or *. | |
| 3dd63760 JB |
557 | |
| 558 | (defun fortran-numerical-continuation-char () | |
| b56eb7c9 | 559 | "Return a digit for tab-digit style of continuation lines. |
| 3dd63760 JB |
560 | If, previous line is a tab-digit continuation line, returns that digit |
| 561 | plus one. Otherwise return 1. Zero not allowed." | |
| 562 | (save-excursion | |
| 563 | (forward-line -1) | |
| 564 | (if (looking-at "\t[1-9]") | |
| 565 | (+ ?1 (% (- (char-after (+ (point) 1)) ?0) 9)) | |
| 566 | ?1))) | |
| 567 | ||
| 568 | (defun delete-horizontal-regexp (chars) | |
| 569 | "Delete all characters in CHARS around point. | |
| 570 | CHARS is like the inside of a [...] in a regular expression | |
| 571 | except that ] is never special and \ quotes ^, - or \." | |
| 572 | (interactive "*s") | |
| 573 | (skip-chars-backward chars) | |
| 574 | (delete-region (point) (progn (skip-chars-forward chars) (point)))) | |
| 575 | ||
| 576 | (defun fortran-electric-line-number (arg) | |
| 577 | "Self insert, but if part of a Fortran line number indent it automatically. | |
| 578 | Auto-indent does not happen if a numeric arg is used." | |
| 3dd63760 JB |
579 | (interactive "P") |
| 580 | (if (or arg (not fortran-electric-line-number)) | |
| 581 | (if arg | |
| b8cbdf43 | 582 | (self-insert-command (prefix-numeric-value arg)) |
| 3dd63760 JB |
583 | (self-insert-command 1)) |
| 584 | (if (or (and (= 5 (current-column)) | |
| 585 | (save-excursion | |
| 586 | (beginning-of-line) | |
| 587 | (looking-at " ")));In col 5 with only spaces to left. | |
| 23029d77 JB |
588 | (and (= (if indent-tabs-mode |
| 589 | fortran-minimum-statement-indent-tab | |
| 590 | fortran-minimum-statement-indent-fixed) (current-column)) | |
| 3dd63760 JB |
591 | (save-excursion |
| 592 | (beginning-of-line) | |
| 593 | (looking-at "\t"));In col 8 with a single tab to the left. | |
| 594 | (not (or (eq last-command 'fortran-indent-line) | |
| 595 | (eq last-command | |
| aa4ed68c | 596 | 'fortran-indent-new-line)))) |
| 3dd63760 JB |
597 | (save-excursion |
| 598 | (re-search-backward "[^ \t0-9]" | |
| 599 | (save-excursion | |
| 600 | (beginning-of-line) | |
| 601 | (point)) | |
| 602 | t)) ;not a line number | |
| 603 | (looking-at "[0-9]") ;within a line number | |
| 604 | ) | |
| b8cbdf43 | 605 | (self-insert-command (prefix-numeric-value arg)) |
| 3dd63760 JB |
606 | (skip-chars-backward " \t") |
| 607 | (insert last-command-char) | |
| 608 | (fortran-indent-line)))) | |
| 609 | \f | |
| 610 | (defun beginning-of-fortran-subprogram () | |
| b8cbdf43 | 611 | "Moves point to the beginning of the current Fortran subprogram." |
| 3dd63760 JB |
612 | (interactive) |
| 613 | (let ((case-fold-search t)) | |
| 614 | (beginning-of-line -1) | |
| 615 | (re-search-backward "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]" nil 'move) | |
| 616 | (if (looking-at "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]") | |
| 617 | (forward-line 1)))) | |
| 618 | ||
| 619 | (defun end-of-fortran-subprogram () | |
| b8cbdf43 | 620 | "Moves point to the end of the current Fortran subprogram." |
| 3dd63760 JB |
621 | (interactive) |
| 622 | (let ((case-fold-search t)) | |
| 623 | (beginning-of-line 2) | |
| 624 | (re-search-forward "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]" nil 'move) | |
| 625 | (goto-char (match-beginning 0)) | |
| 626 | (forward-line 1))) | |
| 627 | ||
| 628 | (defun mark-fortran-subprogram () | |
| b8cbdf43 | 629 | "Put mark at end of Fortran subprogram, point at beginning. |
| 3dd63760 JB |
630 | The marks are pushed." |
| 631 | (interactive) | |
| 632 | (end-of-fortran-subprogram) | |
| 633 | (push-mark (point)) | |
| 634 | (beginning-of-fortran-subprogram)) | |
| b8cbdf43 | 635 | |
| 3dd63760 | 636 | (defun fortran-previous-statement () |
| b8cbdf43 RS |
637 | "Moves point to beginning of the previous Fortran statement. |
| 638 | Returns `first-statement' if that statement is the first | |
| 3dd63760 JB |
639 | non-comment Fortran statement in the file, and nil otherwise." |
| 640 | (interactive) | |
| 641 | (let (not-first-statement continue-test) | |
| 642 | (beginning-of-line) | |
| 643 | (setq continue-test | |
| b8cbdf43 RS |
644 | (and |
| 645 | (not (looking-at comment-line-start-skip)) | |
| 646 | (or (looking-at | |
| 3dd63760 | 647 | (concat "[ \t]*" (regexp-quote fortran-continuation-string))) |
| b8cbdf43 RS |
648 | (or (looking-at " [^ 0\n]") |
| 649 | (looking-at "\t[1-9]"))))) | |
| 3dd63760 JB |
650 | (while (and (setq not-first-statement (= (forward-line -1) 0)) |
| 651 | (or (looking-at comment-line-start-skip) | |
| 652 | (looking-at "[ \t]*$") | |
| 653 | (looking-at " [^ 0\n]") | |
| 654 | (looking-at "\t[1-9]") | |
| 655 | (looking-at (concat "[ \t]*" comment-start-skip))))) | |
| 656 | (cond ((and continue-test | |
| 657 | (not not-first-statement)) | |
| 658 | (message "Incomplete continuation statement.")) | |
| 659 | (continue-test | |
| 660 | (fortran-previous-statement)) | |
| 661 | ((not not-first-statement) | |
| 662 | 'first-statement)))) | |
| 663 | ||
| 664 | (defun fortran-next-statement () | |
| b8cbdf43 | 665 | "Moves point to beginning of the next Fortran statement. |
| 3dd63760 JB |
666 | Returns `last-statement' if that statement is the last |
| 667 | non-comment Fortran statement in the file, and nil otherwise." | |
| 668 | (interactive) | |
| 669 | (let (not-last-statement) | |
| 670 | (beginning-of-line) | |
| b8cbdf43 RS |
671 | (while (and (setq not-last-statement |
| 672 | (and (= (forward-line 1) 0) | |
| 673 | (not (eobp)))) | |
| 3dd63760 JB |
674 | (or (looking-at comment-line-start-skip) |
| 675 | (looking-at "[ \t]*$") | |
| 676 | (looking-at " [^ 0\n]") | |
| 677 | (looking-at "\t[1-9]") | |
| 678 | (looking-at (concat "[ \t]*" comment-start-skip))))) | |
| 679 | (if (not not-last-statement) | |
| 680 | 'last-statement))) | |
| 681 | \f | |
| 682 | (defun fortran-blink-matching-if () | |
| b8cbdf43 | 683 | "From a Fortran ENDIF statement, blink the matching IF statement." |
| 3dd63760 JB |
684 | (let ((count 1) (top-of-window (window-start)) matching-if |
| 685 | (endif-point (point)) message) | |
| 686 | (if (save-excursion (beginning-of-line) | |
| 687 | (skip-chars-forward " \t0-9") | |
| 688 | (looking-at "end[ \t]*if\\b")) | |
| 689 | (progn | |
| 690 | (save-excursion | |
| 691 | (while (and (not (= count 0)) | |
| 692 | (not (eq (fortran-previous-statement) | |
| 693 | 'first-statement)) | |
| 694 | (not (looking-at | |
| 695 | "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]"))) | |
| 696 | ; Keep local to subprogram | |
| 697 | (skip-chars-forward " \t0-9") | |
| 698 | (cond ((looking-at "if[ \t]*(") | |
| b8cbdf43 RS |
699 | (save-excursion |
| 700 | (if (or | |
| 701 | (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t(=a-z0-9]") | |
| 702 | (let (then-test);multi-line if-then | |
| 703 | (while | |
| 704 | (and (= (forward-line 1) 0) | |
| 3dd63760 | 705 | ;search forward for then |
| b8cbdf43 RS |
706 | (or (looking-at " [^ 0\n]") |
| 707 | (looking-at "\t[1-9]")) | |
| 708 | (not | |
| 709 | (setq | |
| 710 | then-test | |
| 711 | (looking-at | |
| 712 | ".*then\\b[ \t]*[^ \t(=a-z0-9]"))))) | |
| 713 | then-test)) | |
| 714 | (setq count (- count 1))))) | |
| 3dd63760 JB |
715 | ((looking-at "end[ \t]*if\\b") |
| 716 | (setq count (+ count 1))))) | |
| 717 | (if (not (= count 0)) | |
| 718 | (setq message "No matching if.") | |
| 719 | (if (< (point) top-of-window) | |
| 720 | (setq message (concat "Matches " (buffer-substring | |
| 721 | (progn (beginning-of-line) | |
| 722 | (point)) | |
| 723 | (progn (end-of-line) | |
| 724 | (point))))) | |
| 725 | (setq matching-if (point))))) | |
| 726 | (if message | |
| b8cbdf43 | 727 | (message "%s" message) |
| 3dd63760 JB |
728 | (goto-char matching-if) |
| 729 | (sit-for 1) | |
| 730 | (goto-char endif-point)))))) | |
| 947388af RS |
731 | |
| 732 | (defun fortran-blink-matching-do () | |
| 733 | ;; From a Fortran ENDDO statement, blink on the matching DO or DO WHILE | |
| 734 | ;; statement. This is basically copied from fortran-blink-matching-if. | |
| 735 | (let ((count 1) (top-of-window (window-start)) matching-do | |
| 736 | (enddo-point (point)) message) | |
| 737 | (if (save-excursion (beginning-of-line) | |
| 738 | (skip-chars-forward " \t0-9") | |
| 739 | (looking-at "end[ \t]*do\\b")) | |
| 740 | (progn | |
| 741 | (save-excursion | |
| 742 | (while (and (not (= count 0)) | |
| 743 | (not (eq (fortran-previous-statement) | |
| 744 | 'first-statement)) | |
| 745 | (not (looking-at | |
| 746 | "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]"))) | |
| 747 | ; Keep local to subprogram | |
| 748 | (skip-chars-forward " \t0-9") | |
| 749 | (cond ((looking-at "do[ \t]+") | |
| 750 | (setq count (- count 1))) | |
| 751 | ((looking-at "end[ \t]*do\\b") | |
| 752 | (setq count (+ count 1))))) | |
| 753 | (if (not (= count 0)) | |
| 754 | (setq message "No matching do.") | |
| 755 | (if (< (point) top-of-window) | |
| 756 | (setq message (concat "Matches " (buffer-substring | |
| 757 | (progn (beginning-of-line) | |
| 758 | (point)) | |
| 759 | (progn (end-of-line) | |
| 760 | (point))))) | |
| 761 | (setq matching-do (point))))) | |
| 762 | (if message | |
| 763 | (message "%s" message) | |
| 764 | (goto-char matching-do) | |
| 765 | (sit-for 1) | |
| 766 | (goto-char enddo-point)))))) | |
| 3dd63760 JB |
767 | \f |
| 768 | (defun fortran-indent-line () | |
| b8cbdf43 | 769 | "Indents current Fortran line based on its contents and on previous lines." |
| 3dd63760 JB |
770 | (interactive) |
| 771 | (let ((cfi (calculate-fortran-indent))) | |
| 772 | (save-excursion | |
| 773 | (beginning-of-line) | |
| 774 | (if (or (not (= cfi (fortran-current-line-indentation))) | |
| 775 | (and (re-search-forward "^[ \t]*[0-9]+" (+ (point) 4) t) | |
| 776 | (not (fortran-line-number-indented-correctly-p)))) | |
| 777 | (fortran-indent-to-column cfi) | |
| 778 | (beginning-of-line) | |
| 779 | (if (and (not (looking-at comment-line-start-skip)) | |
| 23029d77 | 780 | (fortran-find-comment-start-skip)) |
| 3dd63760 JB |
781 | (fortran-indent-comment)))) |
| 782 | ;; Never leave point in left margin. | |
| 783 | (if (< (current-column) cfi) | |
| 784 | (move-to-column cfi)) | |
| 23029d77 | 785 | (if (and auto-fill-function |
| b8cbdf43 RS |
786 | (> (save-excursion (end-of-line) (current-column)) fill-column)) |
| 787 | (save-excursion | |
| 788 | (end-of-line) | |
| 789 | (fortran-do-auto-fill))) | |
| 3dd63760 | 790 | (if fortran-blink-matching-if |
| 947388af RS |
791 | (progn |
| 792 | (fortran-blink-matching-if) | |
| 793 | (fortran-blink-matching-do))))) | |
| 3dd63760 | 794 | |
| aa4ed68c | 795 | (defun fortran-indent-new-line () |
| b8cbdf43 RS |
796 | "Reindent the current Fortran line, insert a newline and indent the newline. |
| 797 | An abbrev before point is expanded if `abbrev-mode' is non-nil." | |
| 3dd63760 JB |
798 | (interactive) |
| 799 | (if abbrev-mode (expand-abbrev)) | |
| 800 | (save-excursion | |
| 801 | (beginning-of-line) | |
| 802 | (skip-chars-forward " \t") | |
| 803 | (if (or (looking-at "[0-9]") ;Reindent only where it is most | |
| 804 | (looking-at "end") ;likely to be necessary | |
| 805 | (looking-at "else") | |
| 806 | (looking-at (regexp-quote fortran-continuation-string))) | |
| 807 | (fortran-indent-line))) | |
| b8cbdf43 | 808 | (newline) |
| 3dd63760 | 809 | (fortran-indent-line)) |
| b8cbdf43 | 810 | |
| 3dd63760 JB |
811 | (defun fortran-indent-subprogram () |
| 812 | "Properly indents the Fortran subprogram which contains point." | |
| 813 | (interactive) | |
| 814 | (save-excursion | |
| 815 | (mark-fortran-subprogram) | |
| 816 | (message "Indenting subprogram...") | |
| 817 | (indent-region (point) (mark) nil)) | |
| 818 | (message "Indenting subprogram...done.")) | |
| 819 | ||
| 820 | (defun calculate-fortran-indent () | |
| b8cbdf43 | 821 | "Calculates the Fortran indent column based on previous lines." |
| 3dd63760 JB |
822 | (let (icol first-statement (case-fold-search t) |
| 823 | (fortran-minimum-statement-indent | |
| 23029d77 JB |
824 | (if indent-tabs-mode |
| 825 | fortran-minimum-statement-indent-tab | |
| 826 | fortran-minimum-statement-indent-fixed))) | |
| 3dd63760 JB |
827 | (save-excursion |
| 828 | (setq first-statement (fortran-previous-statement)) | |
| 829 | (if first-statement | |
| 830 | (setq icol fortran-minimum-statement-indent) | |
| 831 | (progn | |
| 832 | (if (= (point) (point-min)) | |
| 833 | (setq icol fortran-minimum-statement-indent) | |
| 834 | (setq icol (fortran-current-line-indentation))) | |
| 835 | (skip-chars-forward " \t0-9") | |
| 836 | (cond ((looking-at "if[ \t]*(") | |
| b8cbdf43 | 837 | (if (or (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t_$(=a-z0-9]") |
| 3dd63760 JB |
838 | (let (then-test) ;multi-line if-then |
| 839 | (while (and (= (forward-line 1) 0) | |
| b8cbdf43 | 840 | ;;search forward for then |
| 3dd63760 JB |
841 | (or (looking-at " [^ 0\n]") |
| 842 | (looking-at "\t[1-9]")) | |
| 843 | (not (setq then-test (looking-at | |
| b8cbdf43 RS |
844 | ".*then\\b[ \t]\ |
| 845 | *[^ \t_$(=a-z0-9]"))))) | |
| 3dd63760 JB |
846 | then-test)) |
| 847 | (setq icol (+ icol fortran-if-indent)))) | |
| 848 | ((looking-at "\\(else\\|elseif\\)\\b") | |
| 849 | (setq icol (+ icol fortran-if-indent))) | |
| 5a8d870b RS |
850 | ((looking-at "select[ \t]*case[ \t](.*)\\b") |
| 851 | (setq icol (+ icol fortran-if-indent))) | |
| 852 | ((looking-at "case[ \t]*(.*)[ \t]*\n") | |
| 853 | (setq icol (+ icol fortran-if-indent))) | |
| 854 | ((looking-at "case[ \t]*default\\b") | |
| 855 | (setq icol (+ icol fortran-if-indent))) | |
| b8cbdf43 RS |
856 | ((looking-at "\\(otherwise\\|else[ \t]*where\\)\\b") |
| 857 | (setq icol (+ icol fortran-if-indent))) | |
| f93f92f1 | 858 | ((looking-at "where[ \t]*(.*)[ \t]*\n") |
| b8cbdf43 | 859 | (setq icol (+ icol fortran-if-indent))) |
| 3dd63760 JB |
860 | ((looking-at "do\\b") |
| 861 | (setq icol (+ icol fortran-do-indent))) | |
| b8cbdf43 | 862 | ((looking-at |
| 5a8d870b | 863 | "\\(structure\\|union\\|map\\|interface\\)\\b[ \t]*[^ \t=(a-z]") |
| b8cbdf43 | 864 | (setq icol (+ icol fortran-structure-indent))) |
| 3dd63760 | 865 | ((looking-at "end\\b[ \t]*[^ \t=(a-z]") |
| b8cbdf43 | 866 | ;; Previous END resets indent to minimum |
| 3dd63760 JB |
867 | (setq icol fortran-minimum-statement-indent)))))) |
| 868 | (save-excursion | |
| 869 | (beginning-of-line) | |
| 870 | (cond ((looking-at "[ \t]*$")) | |
| 871 | ((looking-at comment-line-start-skip) | |
| 3dd63760 | 872 | (cond ((eq fortran-comment-indent-style 'relative) |
| 23029d77 | 873 | (setq icol (+ icol fortran-comment-line-extra-indent))) |
| 3dd63760 | 874 | ((eq fortran-comment-indent-style 'fixed) |
| b8cbdf43 | 875 | (setq icol (+ fortran-minimum-statement-indent |
| 23029d77 | 876 | fortran-comment-line-extra-indent)))) |
| b8cbdf43 | 877 | (setq fortran-minimum-statement-indent 0)) |
| 3dd63760 | 878 | ((or (looking-at (concat "[ \t]*" |
| b8cbdf43 RS |
879 | (regexp-quote |
| 880 | fortran-continuation-string))) | |
| 3dd63760 JB |
881 | (looking-at " [^ 0\n]") |
| 882 | (looking-at "\t[1-9]")) | |
| 883 | (setq icol (+ icol fortran-continuation-indent))) | |
| b56eb7c9 RS |
884 | ((looking-at "[ \t]*#") ; Check for cpp directive. |
| 885 | (setq fortran-minimum-statement-indent 0 icol 0)) | |
| 3dd63760 JB |
886 | (first-statement) |
| 887 | ((and fortran-check-all-num-for-matching-do | |
| 888 | (looking-at "[ \t]*[0-9]+") | |
| 889 | (fortran-check-for-matching-do)) | |
| 890 | (setq icol (- icol fortran-do-indent))) | |
| 891 | (t | |
| 892 | (skip-chars-forward " \t0-9") | |
| 893 | (cond ((looking-at "end[ \t]*if\\b") | |
| 894 | (setq icol (- icol fortran-if-indent))) | |
| 895 | ((looking-at "\\(else\\|elseif\\)\\b") | |
| 896 | (setq icol (- icol fortran-if-indent))) | |
| 5a8d870b RS |
897 | ((looking-at "case[ \t]*(.*)[ \t]*\n") |
| 898 | (setq icol (- icol fortran-if-indent))) | |
| 899 | ((looking-at "case[ \t]*default\\b") | |
| 900 | (setq icol (- icol fortran-if-indent))) | |
| b8cbdf43 RS |
901 | ((looking-at "\\(otherwise\\|else[ \t]*where\\)\\b") |
| 902 | (setq icol (- icol fortran-if-indent))) | |
| 903 | ((looking-at "end[ \t]*where\\b") | |
| 904 | (setq icol (- icol fortran-if-indent))) | |
| 3dd63760 JB |
905 | ((and (looking-at "continue\\b") |
| 906 | (fortran-check-for-matching-do)) | |
| 907 | (setq icol (- icol fortran-do-indent))) | |
| 908 | ((looking-at "end[ \t]*do\\b") | |
| 909 | (setq icol (- icol fortran-do-indent))) | |
| b8cbdf43 RS |
910 | ((looking-at |
| 911 | "end[ \t]*\ | |
| 5a8d870b | 912 | \\(structure\\|union\\|map\\|interface\\)\\b[ \t]*[^ \t=(a-z]") |
| b8cbdf43 | 913 | (setq icol (- icol fortran-structure-indent))) |
| 5a8d870b RS |
914 | ((looking-at |
| 915 | "end[ \t]*select\\b[ \t]*[^ \t=(a-z]") | |
| 916 | (setq icol (- icol fortran-if-indent))) | |
| 3dd63760 JB |
917 | ((and (looking-at "end\\b[ \t]*[^ \t=(a-z]") |
| 918 | (not (= icol fortran-minimum-statement-indent))) | |
| 919 | (message "Warning: `end' not in column %d. Probably\ | |
| 920 | an unclosed block." fortran-minimum-statement-indent)))))) | |
| 921 | (max fortran-minimum-statement-indent icol))) | |
| 922 | \f | |
| 923 | (defun fortran-current-line-indentation () | |
| 924 | "Indentation of current line, ignoring Fortran line number or continuation. | |
| 925 | This is the column position of the first non-whitespace character | |
| 926 | aside from the line number and/or column 5/8 line-continuation character. | |
| 927 | For comment lines, returns indentation of the first | |
| 928 | non-indentation text within the comment." | |
| 929 | (save-excursion | |
| 930 | (beginning-of-line) | |
| 931 | (cond ((looking-at comment-line-start-skip) | |
| 932 | (goto-char (match-end 0)) | |
| 933 | (skip-chars-forward | |
| b8cbdf43 RS |
934 | (if (stringp fortran-comment-indent-char) |
| 935 | fortran-comment-indent-char | |
| 936 | (char-to-string fortran-comment-indent-char)))) | |
| 3dd63760 | 937 | ((or (looking-at " [^ 0\n]") |
| b8cbdf43 | 938 | (looking-at "\t[1-9]")) |
| 3dd63760 JB |
939 | (goto-char (match-end 0))) |
| 940 | (t | |
| 941 | ;; Move past line number. | |
| b8cbdf43 RS |
942 | (skip-chars-forward "[ \t0-9]");From Uli |
| 943 | )) | |
| 3dd63760 JB |
944 | ;; Move past whitespace. |
| 945 | (skip-chars-forward " \t") | |
| 946 | (current-column))) | |
| 947 | ||
| 948 | (defun fortran-indent-to-column (col) | |
| 949 | "Indents current line with spaces to column COL. | |
| 950 | notes: 1) A non-zero/non-blank character in column 5 indicates a continuation | |
| 951 | line, and this continuation character is retained on indentation; | |
| b8cbdf43 RS |
952 | 2) If `fortran-continuation-string' is the first non-whitespace |
| 953 | character, this is a continuation line; | |
| 3dd63760 JB |
954 | 3) A non-continuation line which has a number as the first |
| 955 | non-whitespace character is a numbered line. | |
| b8cbdf43 | 956 | 4) A TAB followed by a digit indicates a continuation line." |
| 3dd63760 JB |
957 | (save-excursion |
| 958 | (beginning-of-line) | |
| 959 | (if (looking-at comment-line-start-skip) | |
| 960 | (if fortran-comment-indent-style | |
| 961 | (let ((char (if (stringp fortran-comment-indent-char) | |
| 962 | (aref fortran-comment-indent-char 0) | |
| b8cbdf43 | 963 | fortran-comment-indent-char))) |
| 3dd63760 JB |
964 | (goto-char (match-end 0)) |
| 965 | (delete-horizontal-regexp (concat " \t" (char-to-string char))) | |
| 966 | (insert-char char (- col (current-column))))) | |
| 967 | (if (looking-at "\t[1-9]") | |
| 23029d77 | 968 | (if indent-tabs-mode |
| 3dd63760 JB |
969 | (goto-char (match-end 0)) |
| 970 | (delete-char 2) | |
| 971 | (insert " ") | |
| 972 | (insert fortran-continuation-string)) | |
| 973 | (if (looking-at " [^ 0\n]") | |
| 23029d77 | 974 | (if indent-tabs-mode |
| 3dd63760 JB |
975 | (progn (delete-char 6) |
| 976 | (insert "\t") | |
| 977 | (insert-char (fortran-numerical-continuation-char) 1)) | |
| 978 | (forward-char 6)) | |
| 979 | (delete-horizontal-space) | |
| b8cbdf43 RS |
980 | ;; Put line number in columns 0-4 |
| 981 | ;; or put continuation character in column 5. | |
| 3dd63760 JB |
982 | (cond ((eobp)) |
| 983 | ((looking-at (regexp-quote fortran-continuation-string)) | |
| 23029d77 | 984 | (if indent-tabs-mode |
| 3dd63760 | 985 | (progn |
| 23029d77 JB |
986 | (indent-to |
| 987 | (if indent-tabs-mode | |
| 988 | fortran-minimum-statement-indent-tab | |
| 989 | fortran-minimum-statement-indent-fixed)) | |
| 3dd63760 JB |
990 | (delete-char 1) |
| 991 | (insert-char (fortran-numerical-continuation-char) 1)) | |
| b8cbdf43 RS |
992 | (indent-to 5) |
| 993 | (forward-char 1))) | |
| 3dd63760 JB |
994 | ((looking-at "[0-9]+") |
| 995 | (let ((extra-space (- 5 (- (match-end 0) (point))))) | |
| 996 | (if (< extra-space 0) | |
| 997 | (message "Warning: line number exceeds 5-digit limit.") | |
| 998 | (indent-to (min fortran-line-number-indent extra-space)))) | |
| 999 | (skip-chars-forward "0-9"))))) | |
| 1000 | ;; Point is now after any continuation character or line number. | |
| 1001 | ;; Put body of statement where specified. | |
| 1002 | (delete-horizontal-space) | |
| 1003 | (indent-to col) | |
| 1004 | ;; Indent any comment following code on the same line. | |
| 1005 | (if (and comment-start-skip | |
| 23029d77 | 1006 | (fortran-find-comment-start-skip)) |
| 3dd63760 JB |
1007 | (progn (goto-char (match-beginning 0)) |
| 1008 | (if (not (= (current-column) (fortran-comment-hook))) | |
| 1009 | (progn (delete-horizontal-space) | |
| 1010 | (indent-to (fortran-comment-hook))))))))) | |
| 1011 | ||
| 1012 | (defun fortran-line-number-indented-correctly-p () | |
| 1013 | "Return t if current line's line number is correctly indented. | |
| 1014 | Do not call if there is no line number." | |
| 1015 | (save-excursion | |
| 1016 | (beginning-of-line) | |
| 1017 | (skip-chars-forward " \t") | |
| 1018 | (and (<= (current-column) fortran-line-number-indent) | |
| 1019 | (or (= (current-column) fortran-line-number-indent) | |
| 1020 | (progn (skip-chars-forward "0-9") | |
| 1021 | (= (current-column) 5)))))) | |
| 1022 | ||
| 1023 | (defun fortran-check-for-matching-do () | |
| b8cbdf43 | 1024 | "When called from a numbered statement, returns t if matching DO is found. |
| 3dd63760 JB |
1025 | Otherwise return a nil." |
| 1026 | (let (charnum | |
| 1027 | (case-fold-search t)) | |
| 1028 | (save-excursion | |
| 1029 | (beginning-of-line) | |
| 1030 | (if (looking-at "[ \t]*[0-9]+") | |
| 1031 | (progn | |
| 1032 | (skip-chars-forward " \t") | |
| 1033 | (skip-chars-forward "0") ;skip past leading zeros | |
| 1034 | (setq charnum (buffer-substring (point) | |
| 1035 | (progn (skip-chars-forward "0-9") | |
| 1036 | (point)))) | |
| 1037 | (beginning-of-line) | |
| 1038 | (and (re-search-backward | |
| 1039 | (concat | |
| b8cbdf43 RS |
1040 | "\\(^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]\\)\\|\\(^[ \t0-9]*do\ |
| 1041 | [ \t]*0*" | |
| 1042 | charnum "\\b\\)\\|\\(^[ \t]*0*" charnum "\\b\\)") | |
| 3dd63760 JB |
1043 | nil t) |
| 1044 | (looking-at (concat "^[ \t0-9]*do[ \t]*0*" charnum)))))))) | |
| 1045 | ||
| 23029d77 | 1046 | (defun fortran-find-comment-start-skip () |
| b8cbdf43 RS |
1047 | "Move to past `comment-start-skip' found on current line. |
| 1048 | Return t if `comment-start-skip' found, nil if not." | |
| 1049 | ;;; In order to move point only if comment-start-skip is found, | |
| 1050 | ;;; this one uses a lot of save-excursions. Note that re-search-forward | |
| 1051 | ;;; moves point even if comment-start-skip is inside a string-constant. | |
| 1052 | ;;; Some code expects certain values for match-beginning and end | |
| 1053 | (interactive) | |
| 1054 | (let ((save-match-beginning) (save-match-end)) | |
| 1055 | (if (save-excursion | |
| 1056 | (re-search-forward comment-start-skip | |
| 1057 | (save-excursion (end-of-line) (point)) t)) | |
| 1058 | (progn | |
| 1059 | (setq save-match-beginning (match-beginning 0)) | |
| 1060 | (setq save-match-end (match-end 0)) | |
| 23029d77 | 1061 | (if (fortran-is-in-string-p (match-beginning 0)) |
| b8cbdf43 RS |
1062 | (progn |
| 1063 | (save-excursion | |
| 1064 | (goto-char save-match-end) | |
| 23029d77 | 1065 | (fortran-find-comment-start-skip)) ; recurse for rest of line |
| b8cbdf43 RS |
1066 | ) |
| 1067 | (goto-char save-match-beginning) | |
| 1068 | (re-search-forward comment-start-skip | |
| 1069 | (save-excursion (end-of-line) (point)) t) | |
| 1070 | (goto-char (match-end 0)) | |
| 1071 | t)) | |
| 1072 | nil))) | |
| 1073 | ||
| b56eb7c9 RS |
1074 | ;;;From: ralf@up3aud1.gwdg.de (Ralf Fassel) |
| 1075 | ;;; Test if TAB format continuation lines work. | |
| 1076 | (defun fortran-is-in-string-p (where) | |
| 1077 | "Return non-nil if POS (a buffer position) is inside a Fortran string, | |
| 1078 | nil else." | |
| 1079 | (save-excursion | |
| 1080 | (goto-char where) | |
| 1081 | (cond | |
| 1082 | ((bolp) nil) ; bol is never inside a string | |
| 1083 | ((save-excursion ; comment lines too | |
| 1084 | (beginning-of-line)(looking-at comment-line-start-skip)) nil) | |
| 1085 | (t (let (;; ok, serious now. Init some local vars: | |
| 1086 | (parse-state '(0 nil nil nil nil nil 0)) | |
| 1087 | (quoted-comment-start (if comment-start | |
| 1088 | (regexp-quote comment-start))) | |
| 1089 | (not-done t) | |
| 1090 | parse-limit | |
| 1091 | end-of-line | |
| 1092 | ) | |
| 1093 | ;; move to start of current statement | |
| 1094 | (fortran-next-statement) | |
| 1095 | (fortran-previous-statement) | |
| 1096 | ;; now parse up to WHERE | |
| 1097 | (while not-done | |
| 1098 | (if (or ;; skip to next line if: | |
| 1099 | ;; - comment line? | |
| 1100 | (looking-at comment-line-start-skip) | |
| 1101 | ;; - at end of line? | |
| 1102 | (eolp) | |
| 1103 | ;; - not in a string and after comment-start? | |
| 1104 | (and (not (nth 3 parse-state)) | |
| 1105 | comment-start | |
| 1106 | (equal comment-start | |
| 1107 | (char-to-string (preceding-char))))) | |
| 1108 | ;; get around a bug in forward-line in versions <= 18.57 | |
| 1109 | (if (or (> (forward-line 1) 0) (eobp)) | |
| 1110 | (setq not-done nil)) | |
| 1111 | ;; else: | |
| 1112 | ;; if we are at beginning of code line, skip any | |
| 1113 | ;; whitespace, labels and tab continuation markers. | |
| 1114 | (if (bolp) (skip-chars-forward " \t0-9")) | |
| 1115 | ;; if we are in column <= 5 now, check for continuation char | |
| 1116 | (cond ((= 5 (current-column)) (forward-char 1)) | |
| 1117 | ((and (< (current-column) 5) | |
| 1118 | (equal fortran-continuation-string | |
| 1119 | (char-to-string (following-char))) | |
| 1120 | (forward-char 1)))) | |
| 1121 | ;; find out parse-limit from here | |
| 1122 | (setq end-of-line (save-excursion (end-of-line)(point))) | |
| 1123 | (setq parse-limit (min where end-of-line)) | |
| 1124 | ;; parse max up to comment-start, if non-nil and in current line | |
| 1125 | (if comment-start | |
| 1126 | (save-excursion | |
| 1127 | (if (re-search-forward quoted-comment-start end-of-line t) | |
| 1128 | (setq parse-limit (min (point) parse-limit))))) | |
| 1129 | ;; now parse if still in limits | |
| 1130 | (if (< (point) where) | |
| 1131 | (setq parse-state (parse-partial-sexp | |
| 1132 | (point) parse-limit nil nil parse-state)) | |
| 1133 | (setq not-done nil)) | |
| 1134 | )) | |
| 1135 | ;; result is | |
| 1136 | (nth 3 parse-state)))))) | |
| b8cbdf43 RS |
1137 | |
| 1138 | (defun fortran-auto-fill-mode (arg) | |
| 1139 | "Toggle fortran-auto-fill mode. | |
| 1140 | With ARG, turn `fortran-auto-fill' mode on iff ARG is positive. | |
| 1141 | In `fortran-auto-fill' mode, inserting a space at a column beyond `fill-column' | |
| 1142 | automatically breaks the line at a previous space." | |
| 1143 | (interactive "P") | |
| 23029d77 | 1144 | (prog1 (setq auto-fill-function |
| b8cbdf43 | 1145 | (if (if (null arg) |
| 23029d77 | 1146 | (not auto-fill-function) |
| b8cbdf43 RS |
1147 | (> (prefix-numeric-value arg) 0)) |
| 1148 | 'fortran-indent-line | |
| 1149 | nil)) | |
| 1150 | ;; update mode-line | |
| 1151 | (set-buffer-modified-p (buffer-modified-p)))) | |
| 1152 | ||
| 1153 | (defun fortran-do-auto-fill () | |
| 1154 | (interactive) | |
| 1155 | (let* ((opoint (point)) | |
| 1156 | (bol (save-excursion (beginning-of-line) (point))) | |
| 1157 | (eol (save-excursion (end-of-line) (point))) | |
| 1158 | (bos (min eol (+ bol (fortran-current-line-indentation)))) | |
| 1159 | (quote | |
| 1160 | (save-excursion | |
| 1161 | (goto-char bol) | |
| 1162 | (if (looking-at comment-line-start-skip) | |
| 1163 | nil ; OK to break quotes on comment lines. | |
| 1164 | (move-to-column fill-column) | |
| 23029d77 | 1165 | (cond ((fortran-is-in-string-p (point)) |
| b8cbdf43 RS |
1166 | (save-excursion (re-search-backward "[^']'[^']" bol t) |
| 1167 | (if fortran-break-before-delimiters | |
| 1168 | (point) | |
| 1169 | (1+ (point))))) | |
| 1170 | (t nil))))) | |
| 1171 | ;; | |
| 1172 | ;; decide where to split the line. If a position for a quoted | |
| 1173 | ;; string was found above then use that, else break the line | |
| 1174 | ;; before the last delimiter. | |
| eb8c3be9 | 1175 | ;; Delimiters are whitespace, commas, and operators. |
| b8cbdf43 RS |
1176 | ;; Will break before a pair of *'s. |
| 1177 | ;; | |
| 1178 | (fill-point | |
| 1179 | (or quote | |
| 1180 | (save-excursion | |
| 1181 | (move-to-column (1+ fill-column)) | |
| 1182 | (skip-chars-backward "^ \t\n,'+-/*=)" | |
| 1183 | ;;; (if fortran-break-before-delimiters | |
| 1184 | ;;; "^ \t\n,'+-/*=" "^ \t\n,'+-/*=)") | |
| 1185 | ) | |
| 1186 | (if (<= (point) (1+ bos)) | |
| 1187 | (progn | |
| 1188 | (move-to-column (1+ fill-column)) | |
| b56eb7c9 | 1189 | ;;;what is this doing??? |
| b8cbdf43 RS |
1190 | (if (not (re-search-forward "[\t\n,'+-/*)=]" eol t)) |
| 1191 | (goto-char bol)))) | |
| 1192 | (if (bolp) | |
| 1193 | (re-search-forward "[ \t]" opoint t) | |
| 1194 | (forward-char -1) | |
| 1195 | (if (looking-at "'") | |
| 1196 | (forward-char 1) | |
| 1197 | (skip-chars-backward " \t\*"))) | |
| 1198 | (if fortran-break-before-delimiters | |
| 1199 | (point) | |
| 1200 | (1+ (point)))))) | |
| 1201 | ) | |
| 1202 | ;; if we are in an in-line comment, don't break unless the | |
| 1203 | ;; line of code is longer than it should be. Otherwise | |
| 1204 | ;; break the line at the column computed above. | |
| 1205 | ;; | |
| 23029d77 | 1206 | ;; Need to use fortran-find-comment-start-skip to make sure that quoted !'s |
| b8cbdf43 RS |
1207 | ;; don't prevent a break. |
| 1208 | (if (not (or (save-excursion | |
| 1209 | (if (and (re-search-backward comment-start-skip bol t) | |
| 23029d77 | 1210 | (not (fortran-is-in-string-p (point)))) |
| b8cbdf43 RS |
1211 | (progn |
| 1212 | (skip-chars-backward " \t") | |
| 1213 | (< (current-column) (1+ fill-column))))) | |
| 1214 | (save-excursion | |
| 1215 | (goto-char fill-point) | |
| 1216 | (bolp)))) | |
| 1217 | (if (> (save-excursion | |
| 1218 | (goto-char fill-point) (current-column)) | |
| 1219 | (1+ fill-column)) | |
| 1220 | (progn (goto-char fill-point) | |
| 1221 | (fortran-break-line)) | |
| 1222 | (save-excursion | |
| 1223 | (if (> (save-excursion | |
| 1224 | (goto-char fill-point) | |
| 1225 | (current-column)) | |
| 1226 | (+ (calculate-fortran-indent) fortran-continuation-indent)) | |
| 1227 | (progn | |
| 1228 | (goto-char fill-point) | |
| 1229 | (fortran-break-line)))))) | |
| 1230 | )) | |
| 1231 | (defun fortran-break-line () | |
| 1232 | (let ((opoint (point)) | |
| 1233 | (bol (save-excursion (beginning-of-line) (point))) | |
| 1234 | (eol (save-excursion (end-of-line) (point))) | |
| 1235 | (comment-string nil)) | |
| 1236 | ||
| 1237 | (save-excursion | |
| 23029d77 | 1238 | (if (and comment-start-skip (fortran-find-comment-start-skip)) |
| b8cbdf43 RS |
1239 | (progn |
| 1240 | (re-search-backward comment-start-skip bol t) | |
| 1241 | (setq comment-string (buffer-substring (point) eol)) | |
| 1242 | (delete-region (point) eol)))) | |
| 1243 | ;;; Forward line 1 really needs to go to next non white line | |
| 1244 | (if (save-excursion (forward-line 1) | |
| 1245 | (or (looking-at " [^ 0\n]") | |
| 1246 | (looking-at "\t[1-9]"))) | |
| 1247 | (progn | |
| 1248 | (forward-line 1) | |
| 1249 | (delete-indentation) | |
| 1250 | (delete-char 2) | |
| 1251 | (delete-horizontal-space) | |
| 1252 | (fortran-do-auto-fill)) | |
| 1253 | (fortran-split-line)) | |
| 1254 | (if comment-string | |
| 1255 | (save-excursion | |
| 1256 | (goto-char bol) | |
| 1257 | (end-of-line) | |
| 1258 | (delete-horizontal-space) | |
| 1259 | (indent-to (fortran-comment-hook)) | |
| 1260 | (insert comment-string))))) | |
| 1261 | ||
| 23029d77 | 1262 | (defun fortran-analyze-file-format () |
| 5a8d870b | 1263 | "Returns nil if fixed format is used, t if TAB formatting is used. |
| 23029d77 JB |
1264 | Use `fortran-tab-mode-default' if no non-comment statements are found in the |
| 1265 | file before the end or the first `fortran-analyze-depth' lines." | |
| 1266 | (let ((i 0)) | |
| 1267 | (save-excursion | |
| 1268 | (goto-char (point-min)) | |
| 1269 | (setq i 0) | |
| 1270 | (while (not (or | |
| 1271 | (eobp) | |
| 1272 | (looking-at "\t") | |
| 1273 | (looking-at " ") | |
| 1274 | (> i fortran-analyze-depth))) | |
| 1275 | (forward-line) | |
| 1276 | (setq i (1+ i))) | |
| 1277 | (cond | |
| 1278 | ((looking-at "\t") t) | |
| 1279 | ((looking-at " ") nil) | |
| 1280 | (fortran-tab-mode-default t) | |
| 1281 | (t nil))))) | |
| 1282 | ||
| 1283 | (or (assq 'fortran-tab-mode-string minor-mode-alist) | |
| 1284 | (setq minor-mode-alist (cons | |
| 1285 | '(fortran-tab-mode-string | |
| 1286 | (indent-tabs-mode fortran-tab-mode-string)) | |
| 1287 | minor-mode-alist))) | |
| 1288 | ||
| 49116ac0 JB |
1289 | (provide 'fortran) |
| 1290 | ||
| 1a06eabd | 1291 | ;;; fortran.el ends here |
| b56eb7c9 | 1292 |