HCoop / bpt / emacs.git / blame
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|---|---|---|
| e5167999 ER |
1 | ;;; fortran.el --- Fortran mode for GNU Emacs |
| 2 | ||
| b578f267 | 3 | ;; Copyright (c) 1986, 1993, 1994, 1995 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 | |
| 4254fe58 | 7 | ;; Version 1.30.6 (July 27, 1995) |
| 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 | |
| b578f267 EN |
23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
| 24 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
| 25 | ;; Boston, MA 02111-1307, USA. | |
| e5167999 ER |
26 | |
| 27 | ;;; Commentary: | |
| 28 | ||
| 23029d77 JB |
29 | ;; Fortran mode has been upgraded and is now maintained by Stephen A. Wood |
| 30 | ;; (saw@cebaf.gov). It now will use either fixed format continuation line | |
| eb8c3be9 | 31 | ;; markers (character in 6th column), or tab format continuation line style |
| 23029d77 JB |
32 | ;; (digit after a TAB character.) A auto-fill mode has been added to |
| 33 | ;; automatically wrap fortran lines that get too long. | |
| 34 | ||
| 35 | ;; We acknowledge many contributions and valuable suggestions by | |
| b8cbdf43 RS |
36 | ;; Lawrence R. Dodd, Ralf Fassel, Ralph Finch, Stephen Gildea, |
| 37 | ;; Dr. Anil Gokhale, Ulrich Mueller, Mark Neale, Eric Prestemon, | |
| 38 | ;; Gary Sabot and Richard Stallman. | |
| 39 | ||
| b578f267 EN |
40 | ;; This file may be used with GNU Emacs version 18.xx if the following |
| 41 | ;; variable and function substitutions are made. | |
| 42 | ;; Replace: | |
| 43 | ;; frame-width with screen-width | |
| 44 | ;; auto-fill-function with auto-fill-hook | |
| 45 | ;; comment-indent-function with comment-indent-hook | |
| 46 | ;; (setq unread-command-events (list c)) with (setq unread-command-char c) | |
| 3dd63760 | 47 | |
| b578f267 | 48 | ;; Bugs to bug-fortran-mode@erl.mit.edu |
| b8cbdf43 | 49 | |
| e5167999 ER |
50 | ;;; Code: |
| 51 | ||
| b578f267 EN |
52 | (defconst fortran-mode-version "version 1.30.6") |
| 53 | ||
| 3dd63760 JB |
54 | ;;;###autoload |
| 55 | (defvar fortran-tab-mode-default nil | |
| e80f2147 RS |
56 | "*Default tabbing/carriage control style for empty files in Fortran mode. |
| 57 | A value of t specifies tab-digit style of continuation control. | |
| 58 | A value of nil specifies that continuation lines are marked | |
| 59 | with a character in column 6.") | |
| 60 | ||
| e80f2147 | 61 | ;; Buffer local, used to display mode line. |
| 23029d77 | 62 | (defvar fortran-tab-mode-string nil |
| 5a8d870b | 63 | "String to appear in mode line when TAB format mode is on.") |
| 3dd63760 JB |
64 | |
| 65 | (defvar fortran-do-indent 3 | |
| b8cbdf43 | 66 | "*Extra indentation applied to DO blocks.") |
| 3dd63760 JB |
67 | |
| 68 | (defvar fortran-if-indent 3 | |
| b8cbdf43 RS |
69 | "*Extra indentation applied to IF blocks.") |
| 70 | ||
| 71 | (defvar fortran-structure-indent 3 | |
| 5a8d870b | 72 | "*Extra indentation applied to STRUCTURE, UNION, MAP and INTERFACE blocks.") |
| 3dd63760 JB |
73 | |
| 74 | (defvar fortran-continuation-indent 5 | |
| b8cbdf43 | 75 | "*Extra indentation applied to Fortran continuation lines.") |
| 3dd63760 JB |
76 | |
| 77 | (defvar fortran-comment-indent-style 'fixed | |
| 78 | "*nil forces comment lines not to be touched, | |
| 23029d77 JB |
79 | 'fixed makes fixed comment indentation to `fortran-comment-line-extra-indent' |
| 80 | columns beyond `fortran-minimum-statement-indent-fixed' (for | |
| 81 | `indent-tabs-mode' of nil) or `fortran-minimum-statement-indent-tab' (for | |
| 82 | `indent-tabs-mode' of t), and 'relative indents to current | |
| 83 | Fortran indentation plus `fortran-comment-line-extra-indent'.") | |
| 3dd63760 | 84 | |
| 23029d77 | 85 | (defvar fortran-comment-line-extra-indent 0 |
| b8cbdf43 | 86 | "*Amount of extra indentation for text within full-line comments.") |
| 3dd63760 JB |
87 | |
| 88 | (defvar comment-line-start nil | |
| 89 | "*Delimiter inserted to start new full-line comment.") | |
| 90 | ||
| 91 | (defvar comment-line-start-skip nil | |
| 92 | "*Regexp to match the start of a full-line comment.") | |
| 93 | ||
| 23029d77 JB |
94 | (defvar fortran-minimum-statement-indent-fixed 6 |
| 95 | "*Minimum statement indentation for fixed format continuation style.") | |
| 96 | ||
| 97 | (defvar fortran-minimum-statement-indent-tab (max tab-width 6) | |
| 98 | "*Minimum statement indentation for TAB format continuation style.") | |
| 3dd63760 JB |
99 | |
| 100 | ;; Note that this is documented in the v18 manuals as being a string | |
| 101 | ;; of length one rather than a single character. | |
| 102 | ;; The code in this file accepts either format for compatibility. | |
| 103 | (defvar fortran-comment-indent-char " " | |
| 104 | "*Single-character string inserted for Fortran comment indentation. | |
| 105 | Normally a space.") | |
| 106 | ||
| 107 | (defvar fortran-line-number-indent 1 | |
| 108 | "*Maximum indentation for Fortran line numbers. | |
| 109 | 5 means right-justify them within their five-column field.") | |
| 110 | ||
| 111 | (defvar fortran-check-all-num-for-matching-do nil | |
| b8cbdf43 | 112 | "*Non-nil causes all numbered lines to be treated as possible DO loop ends.") |
| 3dd63760 JB |
113 | |
| 114 | (defvar fortran-blink-matching-if nil | |
| c5af0a18 RS |
115 | "*Non-nil causes \\[fortran-indent-line] on ENDIF statement to blink on matching IF. |
| 116 | Also, from an ENDDO statement blink on matching DO [WHILE] statement.") | |
| 3dd63760 JB |
117 | |
| 118 | (defvar fortran-continuation-string "$" | |
| b8cbdf43 | 119 | "*Single-character string used for Fortran continuation lines. |
| 3dd63760 JB |
120 | In fixed format continuation style, this character is inserted in |
| 121 | column 6 by \\[fortran-split-line] to begin a continuation line. | |
| 122 | Also, if \\[fortran-indent-line] finds this at the beginning of a line, it will | |
| 123 | convert the line into a continuation line of the appropriate style. | |
| 124 | Normally $.") | |
| 125 | ||
| 126 | (defvar fortran-comment-region "c$$$" | |
| 127 | "*String inserted by \\[fortran-comment-region]\ | |
| 128 | at start of each line in region.") | |
| 129 | ||
| 130 | (defvar fortran-electric-line-number t | |
| 131 | "*Non-nil causes line number digits to be moved to the correct column as\ | |
| 132 | typed.") | |
| 133 | ||
| 134 | (defvar fortran-startup-message t | |
| 135 | "*Non-nil displays a startup message when Fortran mode is first called.") | |
| 136 | ||
| 23029d77 JB |
137 | (defvar fortran-column-ruler-fixed |
| 138 | "0 4 6 10 20 30 40 5\ | |
| f022dd89 SM |
139 | \0 60 70\n\ |
| 140 | \[ ]|{ | | | | | | | | \ | |
| 141 | \| | | | |}\n" | |
| 23029d77 | 142 | "*String displayed above current line by \\[fortran-column-ruler]. |
| 5a8d870b | 143 | This variable used in fixed format mode.") |
| 23029d77 JB |
144 | |
| 145 | (defvar fortran-column-ruler-tab | |
| 146 | "0 810 20 30 40 5\ | |
| f022dd89 SM |
147 | \0 60 70\n\ |
| 148 | \[ ]| { | | | | | | | | \ | |
| 149 | \| | | | |}\n" | |
| 23029d77 | 150 | "*String displayed above current line by \\[fortran-column-ruler]. |
| 5a8d870b | 151 | This variable used in TAB format mode.") |
| 3dd63760 JB |
152 | |
| 153 | (defconst bug-fortran-mode "bug-fortran-mode@erl.mit.edu" | |
| 154 | "Address of mailing list for Fortran mode bugs.") | |
| 155 | ||
| 3dd63760 JB |
156 | (defvar fortran-mode-syntax-table nil |
| 157 | "Syntax table in use in Fortran mode buffers.") | |
| 158 | ||
| 159 | (defvar fortran-analyze-depth 100 | |
| 23029d77 | 160 | "Number of lines to scan to determine whether to use fixed or TAB format\ |
| 3dd63760 JB |
161 | style.") |
| 162 | ||
| b8cbdf43 | 163 | (defvar fortran-break-before-delimiters t |
| 4254fe58 | 164 | "*Non-nil causes `fortran-fill' to break lines before delimiters.") |
| b8cbdf43 | 165 | |
| 3dd63760 JB |
166 | (if fortran-mode-syntax-table |
| 167 | () | |
| 168 | (setq fortran-mode-syntax-table (make-syntax-table)) | |
| 169 | (modify-syntax-entry ?\; "w" fortran-mode-syntax-table) | |
| 170 | (modify-syntax-entry ?\r " " 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 ?\\ "/" fortran-mode-syntax-table) | |
| 179 | (modify-syntax-entry ?. "w" fortran-mode-syntax-table) | |
| b8cbdf43 | 180 | (modify-syntax-entry ?_ "w" fortran-mode-syntax-table) |
| 563f09b5 | 181 | (modify-syntax-entry ?\! "<" fortran-mode-syntax-table) |
| 3dd63760 JB |
182 | (modify-syntax-entry ?\n ">" fortran-mode-syntax-table)) |
| 183 | ||
| 563f09b5 SM |
184 | ;; Comments are real pain in Fortran because there is no way to represent the |
| 185 | ;; standard comment syntax in an Emacs syntax table (we can for VAX-style). | |
| 186 | ;; Therefore an unmatched quote in a standard comment will throw fontification | |
| f022dd89 SM |
187 | ;; off on the wrong track. So we do syntactic fontification with regexps. |
| 188 | ||
| 189 | ;; Regexps done by simon@gnu with help from Ulrik Dickow <dickow@nbi.dk> and | |
| 190 | ;; probably others Si's forgotten about (sorry). | |
| 563f09b5 | 191 | |
| f408b027 | 192 | (defconst fortran-font-lock-keywords-1 nil |
| f3d4eb7b | 193 | "Subdued level highlighting for Fortran mode.") |
| 563f09b5 | 194 | |
| f408b027 SM |
195 | (defconst fortran-font-lock-keywords-2 nil |
| 196 | "Medium level highlighting for Fortran mode.") | |
| 197 | ||
| 198 | (defconst fortran-font-lock-keywords-3 nil | |
| 199 | "Gaudy level highlighting for Fortran mode.") | |
| 200 | ||
| 201 | (let ((comment-chars "c!*") | |
| 202 | (fortran-type-types | |
| f022dd89 SM |
203 | ; (make-regexp |
| 204 | ; (let ((simple-types '("character" "byte" "integer" "logical" | |
| 205 | ; "none" "real" "complex" | |
| 206 | ; "double[ \t]*precision" "double[ \t]*complex")) | |
| 207 | ; (structured-types '("structure" "union" "map")) | |
| 208 | ; (other-types '("record" "dimension" "parameter" "common" "save" | |
| 209 | ; "external" "intrinsic" "data" "equivalence"))) | |
| 210 | ; (append | |
| 211 | ; (mapcar (lambda (x) (concat "implicit[ \t]*" x)) simple-types) | |
| 212 | ; simple-types | |
| 213 | ; (mapcar (lambda (x) (concat "end[ \t]*" x)) structured-types) | |
| 214 | ; structured-types | |
| 215 | ; other-types))) | |
| 216 | (concat "byte\\|c\\(haracter\\|om\\(mon\\|plex\\)\\)\\|" | |
| 217 | "d\\(ata\\|imension\\|ouble" | |
| 218 | "[ \t]*\\(complex\\|precision\\)\\)\\|" | |
| 219 | "e\\(nd[ \t]*\\(map\\|structure\\|union\\)\\|" | |
| 220 | "quivalence\\|xternal\\)\\|" | |
| 221 | "i\\(mplicit[ \t]*\\(byte\\|" | |
| 222 | "c\\(haracter\\|omplex\\)\\|" | |
| 223 | "double[ \t]*\\(complex\\|precision\\)\\|" | |
| 224 | "integer\\|logical\\|none\\|real\\)\\|" | |
| 225 | "nt\\(eger\\|rinsic\\)\\)\\|" | |
| 226 | "logical\\|map\\|none\\|parameter\\|re\\(al\\|cord\\)\\|" | |
| 563f09b5 | 227 | "s\\(ave\\|tructure\\)\\|union")) |
| f408b027 | 228 | (fortran-keywords |
| 563f09b5 SM |
229 | ; ("continue" "format" "end" "enddo" "if" "then" "else" "endif" |
| 230 | ; "elseif" "while" "inquire" "stop" "return" "include" "open" | |
| 231 | ; "close" "read" "write" "format" "print") | |
| 232 | (concat "c\\(lose\\|ontinue\\)\\|" | |
| 233 | "e\\(lse\\(\\|if\\)\\|nd\\(\\|do\\|if\\)\\)\\|format\\|" | |
| 234 | "i\\(f\\|n\\(clude\\|quire\\)\\)\\|open\\|print\\|" | |
| 235 | "re\\(ad\\|turn\\)\\|stop\\|then\\|w\\(hile\\|rite\\)")) | |
| f408b027 SM |
236 | (fortran-logicals |
| 237 | ; ("and" "or" "not" "lt" "le" "eq" "ge" "gt" "ne" "true" "false") | |
| 238 | "and\\|eq\\|false\\|g[et]\\|l[et]\\|n\\(e\\|ot\\)\\|or\\|true")) | |
| 563f09b5 | 239 | |
| f408b027 | 240 | (setq fortran-font-lock-keywords-1 |
| f022dd89 SM |
241 | (list |
| 242 | ;; | |
| f408b027 SM |
243 | ;; Fontify syntactically (assuming strings cannot be quoted or span lines). |
| 244 | (cons (concat "^[" comment-chars "].*") 'font-lock-comment-face) | |
| 245 | '(fortran-match-!-comment . font-lock-comment-face) | |
| 246 | (list (concat "^[^" comment-chars "\t\n]" (make-string 71 ?.) "\\(.*\\)") | |
| 247 | '(1 font-lock-comment-face)) | |
| 248 | '("'[^'\n]*'?" . font-lock-string-face) | |
| f022dd89 | 249 | ;; |
| f408b027 SM |
250 | ;; Program, subroutine and function declarations, plus calls. |
| 251 | (list (concat "\\<\\(block[ \t]*data\\|call\\|entry\\|function\\|" | |
| 252 | "program\\|subroutine\\)\\>[ \t]*\\(\\sw+\\)?") | |
| 253 | '(1 font-lock-keyword-face) | |
| 254 | '(2 font-lock-function-name-face nil t)))) | |
| 255 | ||
| 256 | (setq fortran-font-lock-keywords-2 | |
| 257 | (append fortran-font-lock-keywords-1 | |
| 258 | (list | |
| 259 | ;; | |
| 260 | ;; Fontify all type specifiers (must be first; see below). | |
| 261 | (cons (concat "\\<\\(" fortran-type-types "\\)\\>") 'font-lock-type-face) | |
| 262 | ;; | |
| 263 | ;; Fontify all builtin keywords (except logical, do and goto; see below). | |
| 264 | (concat "\\<\\(" fortran-keywords "\\)\\>") | |
| 265 | ;; | |
| 266 | ;; Fontify all builtin operators. | |
| 267 | (concat "\\.\\(" fortran-logicals "\\)\\.") | |
| 268 | ;; | |
| 269 | ;; Fontify do/goto keywords and targets, and goto tags. | |
| 270 | (list "\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)?" | |
| 271 | '(1 font-lock-keyword-face) | |
| 272 | '(2 font-lock-reference-face nil t)) | |
| 273 | (cons "^ *\\([0-9]+\\)" 'font-lock-reference-face)))) | |
| 274 | ||
| 275 | (setq fortran-font-lock-keywords-3 | |
| 276 | (append | |
| 277 | ;; | |
| 278 | ;; The list `fortran-font-lock-keywords-1'. | |
| 279 | fortran-font-lock-keywords-1 | |
| 280 | ;; | |
| 281 | ;; Fontify all type specifiers plus their declared items. | |
| 282 | (list | |
| 283 | (list (concat "\\<\\(" fortran-type-types "\\)\\>[ \t(/]*\\(*\\)?") | |
| 284 | ;; Fontify the type specifier. | |
| 285 | '(1 font-lock-type-face) | |
| 286 | ;; Fontify each declaration item (or just the /.../ block name). | |
| 287 | '(font-lock-match-c++-style-declaration-item-and-skip-to-next | |
| 288 | ;; Start after any *(...) expression. | |
| 289 | (and (match-beginning 15) (forward-sexp 1)) | |
| 290 | ;; No need to clean up. | |
| 291 | nil | |
| 292 | ;; Fontify as a variable name, functions are fontified elsewhere. | |
| 293 | (1 font-lock-variable-name-face nil t)))) | |
| 294 | ;; | |
| 295 | ;; Things extra to `fortran-font-lock-keywords-3' (must be done first). | |
| 296 | (list | |
| 297 | ;; | |
| 298 | ;; Fontify goto-like `err=label'/`end=label' in read/write statements. | |
| 299 | '(", *\\(e\\(nd\\|rr\\)\\)\\> *\\(= *\\([0-9]+\\)\\)?" | |
| 300 | (1 font-lock-keyword-face) (4 font-lock-reference-face nil t)) | |
| 301 | ;; | |
| 302 | ;; Highlight standard continuation character and in a TAB-formatted line. | |
| 303 | '("^ \\([^ 0]\\)" 1 font-lock-string-face) | |
| 304 | '("^\t\\([1-9]\\)" 1 font-lock-string-face)) | |
| 305 | ;; | |
| 306 | ;; The list `fortran-font-lock-keywords-2' less that for types (see above). | |
| 307 | (cdr (nthcdr (length fortran-font-lock-keywords-1) | |
| 308 | fortran-font-lock-keywords-2)))) | |
| 309 | ) | |
| f022dd89 | 310 | |
| f3d4eb7b SM |
311 | (defvar fortran-font-lock-keywords fortran-font-lock-keywords-1 |
| 312 | "Default expressions to highlight in Fortran mode.") | |
| 563f09b5 | 313 | |
| f408b027 | 314 | |
| 3dd63760 | 315 | (defvar fortran-mode-map () |
| b8cbdf43 | 316 | "Keymap used in Fortran mode.") |
| 3dd63760 JB |
317 | (if fortran-mode-map |
| 318 | () | |
| 319 | (setq fortran-mode-map (make-sparse-keymap)) | |
| 320 | (define-key fortran-mode-map ";" 'fortran-abbrev-start) | |
| 321 | (define-key fortran-mode-map "\C-c;" 'fortran-comment-region) | |
| 322 | (define-key fortran-mode-map "\e\C-a" 'beginning-of-fortran-subprogram) | |
| 323 | (define-key fortran-mode-map "\e\C-e" 'end-of-fortran-subprogram) | |
| 324 | (define-key fortran-mode-map "\e;" 'fortran-indent-comment) | |
| 325 | (define-key fortran-mode-map "\e\C-h" 'mark-fortran-subprogram) | |
| 326 | (define-key fortran-mode-map "\e\n" 'fortran-split-line) | |
| aa4ed68c | 327 | (define-key fortran-mode-map "\n" 'fortran-indent-new-line) |
| 3dd63760 JB |
328 | (define-key fortran-mode-map "\e\C-q" 'fortran-indent-subprogram) |
| 329 | (define-key fortran-mode-map "\C-c\C-w" 'fortran-window-create-momentarily) | |
| 330 | (define-key fortran-mode-map "\C-c\C-r" 'fortran-column-ruler) | |
| 331 | (define-key fortran-mode-map "\C-c\C-p" 'fortran-previous-statement) | |
| 332 | (define-key fortran-mode-map "\C-c\C-n" 'fortran-next-statement) | |
| 333 | (define-key fortran-mode-map "\t" 'fortran-indent-line) | |
| 334 | (define-key fortran-mode-map "0" 'fortran-electric-line-number) | |
| 335 | (define-key fortran-mode-map "1" 'fortran-electric-line-number) | |
| 336 | (define-key fortran-mode-map "2" 'fortran-electric-line-number) | |
| 337 | (define-key fortran-mode-map "3" 'fortran-electric-line-number) | |
| 338 | (define-key fortran-mode-map "4" 'fortran-electric-line-number) | |
| 339 | (define-key fortran-mode-map "5" 'fortran-electric-line-number) | |
| 340 | (define-key fortran-mode-map "6" 'fortran-electric-line-number) | |
| 341 | (define-key fortran-mode-map "7" 'fortran-electric-line-number) | |
| 342 | (define-key fortran-mode-map "8" 'fortran-electric-line-number) | |
| 343 | (define-key fortran-mode-map "9" 'fortran-electric-line-number)) | |
| 344 | \f | |
| 345 | (defvar fortran-mode-abbrev-table nil) | |
| 346 | (if fortran-mode-abbrev-table | |
| 347 | () | |
| 348 | (let ((ac abbrevs-changed)) | |
| 349 | (define-abbrev-table 'fortran-mode-abbrev-table ()) | |
| 350 | (define-abbrev fortran-mode-abbrev-table ";au" "automatic" nil) | |
| 351 | (define-abbrev fortran-mode-abbrev-table ";b" "byte" nil) | |
| b8cbdf43 | 352 | (define-abbrev fortran-mode-abbrev-table ";bd" "block data" nil) |
| 3dd63760 JB |
353 | (define-abbrev fortran-mode-abbrev-table ";ch" "character" nil) |
| 354 | (define-abbrev fortran-mode-abbrev-table ";cl" "close" nil) | |
| 355 | (define-abbrev fortran-mode-abbrev-table ";c" "continue" nil) | |
| 356 | (define-abbrev fortran-mode-abbrev-table ";cm" "common" nil) | |
| 357 | (define-abbrev fortran-mode-abbrev-table ";cx" "complex" nil) | |
| 358 | (define-abbrev fortran-mode-abbrev-table ";df" "define" nil) | |
| 359 | (define-abbrev fortran-mode-abbrev-table ";di" "dimension" nil) | |
| 360 | (define-abbrev fortran-mode-abbrev-table ";do" "double" nil) | |
| 361 | (define-abbrev fortran-mode-abbrev-table ";dc" "double complex" nil) | |
| 362 | (define-abbrev fortran-mode-abbrev-table ";dp" "double precision" nil) | |
| 363 | (define-abbrev fortran-mode-abbrev-table ";dw" "do while" nil) | |
| 364 | (define-abbrev fortran-mode-abbrev-table ";e" "else" nil) | |
| 365 | (define-abbrev fortran-mode-abbrev-table ";ed" "enddo" nil) | |
| 366 | (define-abbrev fortran-mode-abbrev-table ";el" "elseif" nil) | |
| 367 | (define-abbrev fortran-mode-abbrev-table ";en" "endif" nil) | |
| 368 | (define-abbrev fortran-mode-abbrev-table ";eq" "equivalence" nil) | |
| b8cbdf43 | 369 | (define-abbrev fortran-mode-abbrev-table ";ew" "endwhere" nil) |
| 3dd63760 JB |
370 | (define-abbrev fortran-mode-abbrev-table ";ex" "external" nil) |
| 371 | (define-abbrev fortran-mode-abbrev-table ";ey" "entry" nil) | |
| 372 | (define-abbrev fortran-mode-abbrev-table ";f" "format" nil) | |
| 373 | (define-abbrev fortran-mode-abbrev-table ";fa" ".false." nil) | |
| 374 | (define-abbrev fortran-mode-abbrev-table ";fu" "function" nil) | |
| 375 | (define-abbrev fortran-mode-abbrev-table ";g" "goto" nil) | |
| 376 | (define-abbrev fortran-mode-abbrev-table ";im" "implicit" nil) | |
| 377 | (define-abbrev fortran-mode-abbrev-table ";ib" "implicit byte" nil) | |
| 378 | (define-abbrev fortran-mode-abbrev-table ";ic" "implicit complex" nil) | |
| 379 | (define-abbrev fortran-mode-abbrev-table ";ich" "implicit character" nil) | |
| 380 | (define-abbrev fortran-mode-abbrev-table ";ii" "implicit integer" nil) | |
| 381 | (define-abbrev fortran-mode-abbrev-table ";il" "implicit logical" nil) | |
| 382 | (define-abbrev fortran-mode-abbrev-table ";ir" "implicit real" nil) | |
| 383 | (define-abbrev fortran-mode-abbrev-table ";inc" "include" nil) | |
| 384 | (define-abbrev fortran-mode-abbrev-table ";in" "integer" nil) | |
| 385 | (define-abbrev fortran-mode-abbrev-table ";intr" "intrinsic" nil) | |
| 386 | (define-abbrev fortran-mode-abbrev-table ";l" "logical" nil) | |
| 387 | (define-abbrev fortran-mode-abbrev-table ";n" "namelist" nil) | |
| 388 | (define-abbrev fortran-mode-abbrev-table ";o" "open" nil) ; was ;op | |
| 389 | (define-abbrev fortran-mode-abbrev-table ";pa" "parameter" nil) | |
| 390 | (define-abbrev fortran-mode-abbrev-table ";pr" "program" nil) | |
| 391 | (define-abbrev fortran-mode-abbrev-table ";ps" "pause" nil) | |
| 392 | (define-abbrev fortran-mode-abbrev-table ";p" "print" nil) | |
| 393 | (define-abbrev fortran-mode-abbrev-table ";rc" "record" nil) | |
| 394 | (define-abbrev fortran-mode-abbrev-table ";re" "real" nil) | |
| 395 | (define-abbrev fortran-mode-abbrev-table ";r" "read" nil) | |
| 396 | (define-abbrev fortran-mode-abbrev-table ";rt" "return" nil) | |
| 397 | (define-abbrev fortran-mode-abbrev-table ";rw" "rewind" nil) | |
| 398 | (define-abbrev fortran-mode-abbrev-table ";s" "stop" nil) | |
| 399 | (define-abbrev fortran-mode-abbrev-table ";sa" "save" nil) | |
| 400 | (define-abbrev fortran-mode-abbrev-table ";st" "structure" nil) | |
| 401 | (define-abbrev fortran-mode-abbrev-table ";sc" "static" nil) | |
| 402 | (define-abbrev fortran-mode-abbrev-table ";su" "subroutine" nil) | |
| 403 | (define-abbrev fortran-mode-abbrev-table ";tr" ".true." nil) | |
| 404 | (define-abbrev fortran-mode-abbrev-table ";ty" "type" nil) | |
| 405 | (define-abbrev fortran-mode-abbrev-table ";vo" "volatile" nil) | |
| 406 | (define-abbrev fortran-mode-abbrev-table ";w" "write" nil) | |
| b8cbdf43 | 407 | (define-abbrev fortran-mode-abbrev-table ";wh" "where" nil) |
| 3dd63760 JB |
408 | (setq abbrevs-changed ac))) |
| 409 | \f | |
| 410 | ;;;###autoload | |
| 411 | (defun fortran-mode () | |
| b8cbdf43 RS |
412 | "Major mode for editing Fortran code. |
| 413 | \\[fortran-indent-line] indents the current Fortran line correctly. | |
| 414 | DO statements must not share a common CONTINUE. | |
| 3dd63760 | 415 | |
| b8cbdf43 | 416 | Type ;? or ;\\[help-command] to display a list of built-in\ |
| 3dd63760 JB |
417 | abbrevs for Fortran keywords. |
| 418 | ||
| 419 | Key definitions: | |
| 420 | \\{fortran-mode-map} | |
| 421 | ||
| 422 | Variables controlling indentation style and extra features: | |
| 423 | ||
| 424 | comment-start | |
| 425 | Normally nil in Fortran mode. If you want to use comments | |
| 426 | starting with `!', set this to the string \"!\". | |
| 427 | fortran-do-indent | |
| 428 | Extra indentation within do blocks. (default 3) | |
| 429 | fortran-if-indent | |
| 430 | Extra indentation within if blocks. (default 3) | |
| b8cbdf43 | 431 | fortran-structure-indent |
| 5a8d870b RS |
432 | Extra indentation within structure, union, map and interface blocks. |
| 433 | (default 3) | |
| 3dd63760 | 434 | fortran-continuation-indent |
| b8cbdf43 | 435 | Extra indentation applied to continuation statements. (default 5) |
| 23029d77 | 436 | fortran-comment-line-extra-indent |
| b8cbdf43 | 437 | Amount of extra indentation for text within full-line comments. (default 0) |
| 3dd63760 JB |
438 | fortran-comment-indent-style |
| 439 | nil means don't change indentation of text in full-line comments, | |
| 23029d77 JB |
440 | fixed means indent that text at `fortran-comment-line-extra-indent' beyond |
| 441 | the value of `fortran-minimum-statement-indent-fixed' (for fixed | |
| 442 | format continuation style) or `fortran-minimum-statement-indent-tab' | |
| 443 | (for TAB format continuation style). | |
| 444 | relative means indent at `fortran-comment-line-extra-indent' beyond the | |
| 3dd63760 JB |
445 | indentation for a line of code. |
| 446 | (default 'fixed) | |
| 447 | fortran-comment-indent-char | |
| b8cbdf43 | 448 | Single-character string to be inserted instead of space for |
| 3dd63760 | 449 | full-line comment indentation. (default \" \") |
| 23029d77 JB |
450 | fortran-minimum-statement-indent-fixed |
| 451 | Minimum indentation for Fortran statements in fixed format mode. (def.6) | |
| 452 | fortran-minimum-statement-indent-tab | |
| 453 | Minimum indentation for Fortran statements in TAB format mode. (default 9) | |
| 3dd63760 JB |
454 | fortran-line-number-indent |
| 455 | Maximum indentation for line numbers. A line number will get | |
| 456 | less than this much indentation if necessary to avoid reaching | |
| 457 | column 5. (default 1) | |
| 458 | fortran-check-all-num-for-matching-do | |
| b8cbdf43 | 459 | Non-nil causes all numbered lines to be treated as possible \"continue\" |
| 3dd63760 JB |
460 | statements. (default nil) |
| 461 | fortran-blink-matching-if | |
| c5af0a18 RS |
462 | Non-nil causes \\[fortran-indent-line] on an ENDIF statement to blink on |
| 463 | matching IF. Also, from an ENDDO statement, blink on matching DO [WHILE] | |
| 464 | statement. (default nil) | |
| 3dd63760 JB |
465 | fortran-continuation-string |
| 466 | Single-character string to be inserted in column 5 of a continuation | |
| 467 | line. (default \"$\") | |
| 468 | fortran-comment-region | |
| 469 | String inserted by \\[fortran-comment-region] at start of each line in | |
| 470 | region. (default \"c$$$\") | |
| 471 | fortran-electric-line-number | |
| 472 | Non-nil causes line number digits to be moved to the correct column | |
| 473 | as typed. (default t) | |
| b8cbdf43 | 474 | fortran-break-before-delimiters |
| 4254fe58 | 475 | Non-nil causes `fortran-fill' breaks lines before delimiters. |
| b8cbdf43 | 476 | (default t) |
| 3dd63760 JB |
477 | fortran-startup-message |
| 478 | Set to nil to inhibit message first time Fortran mode is used. | |
| 479 | ||
| b8cbdf43 | 480 | Turning on Fortran mode calls the value of the variable `fortran-mode-hook' |
| 3dd63760 JB |
481 | with no args, if that value is non-nil." |
| 482 | (interactive) | |
| 483 | (kill-all-local-variables) | |
| 484 | (if fortran-startup-message | |
| b8cbdf43 | 485 | (message "Emacs Fortran mode %s. Bugs to %s" |
| 3dd63760 JB |
486 | fortran-mode-version bug-fortran-mode)) |
| 487 | (setq fortran-startup-message nil) | |
| 488 | (setq local-abbrev-table fortran-mode-abbrev-table) | |
| 489 | (set-syntax-table fortran-mode-syntax-table) | |
| f3d4eb7b | 490 | ;; Font Lock mode support. |
| f408b027 SM |
491 | (make-local-variable 'font-lock-defaults) |
| 492 | (setq font-lock-defaults '((fortran-font-lock-keywords | |
| 493 | fortran-font-lock-keywords-1 | |
| 494 | fortran-font-lock-keywords-2 | |
| 495 | fortran-font-lock-keywords-3) | |
| 496 | t t ((?/ . "$/")))) | |
| b8cbdf43 RS |
497 | (make-local-variable 'fortran-break-before-delimiters) |
| 498 | (setq fortran-break-before-delimiters t) | |
| 3dd63760 JB |
499 | (make-local-variable 'indent-line-function) |
| 500 | (setq indent-line-function 'fortran-indent-line) | |
| e41b2db1 ER |
501 | (make-local-variable 'comment-indent-function) |
| 502 | (setq comment-indent-function 'fortran-comment-hook) | |
| 3dd63760 JB |
503 | (make-local-variable 'comment-line-start-skip) |
| 504 | (setq comment-line-start-skip | |
| b8cbdf43 | 505 | "^[Cc*]\\(\\([^ \t\n]\\)\\2\\2*\\)?[ \t]*\\|^#.*") |
| 3dd63760 JB |
506 | (make-local-variable 'comment-line-start) |
| 507 | (setq comment-line-start "c") | |
| 508 | (make-local-variable 'comment-start-skip) | |
| 509 | (setq comment-start-skip "![ \t]*") | |
| 510 | (make-local-variable 'comment-start) | |
| 511 | (setq comment-start nil) | |
| 512 | (make-local-variable 'require-final-newline) | |
| 513 | (setq require-final-newline t) | |
| 514 | (make-local-variable 'abbrev-all-caps) | |
| 515 | (setq abbrev-all-caps t) | |
| 516 | (make-local-variable 'indent-tabs-mode) | |
| 517 | (setq indent-tabs-mode nil) | |
| 23029d77 | 518 | ;;;(setq abbrev-mode t) ; ?? (abbrev-mode 1) instead?? |
| b8cbdf43 | 519 | (setq fill-column 72) ; Already local? |
| 3dd63760 JB |
520 | (use-local-map fortran-mode-map) |
| 521 | (setq mode-name "Fortran") | |
| 522 | (setq major-mode 'fortran-mode) | |
| 23029d77 JB |
523 | ;;;(make-local-variable 'fortran-tab-mode) |
| 524 | (make-local-variable 'fortran-comment-line-extra-indent) | |
| 525 | (make-local-variable 'fortran-minimum-statement-indent-fixed) | |
| 526 | (make-local-variable 'fortran-minimum-statement-indent-tab) | |
| 527 | (make-local-variable 'fortran-column-ruler-fixed) | |
| 528 | (make-local-variable 'fortran-column-ruler-tab) | |
| 3dd63760 | 529 | (make-local-variable 'fortran-tab-mode-string) |
| 23029d77 JB |
530 | (setq fortran-tab-mode-string " TAB-format") |
| 531 | (setq indent-tabs-mode (fortran-analyze-file-format)) | |
| 3dd63760 JB |
532 | (run-hooks 'fortran-mode-hook)) |
| 533 | \f | |
| 534 | (defun fortran-comment-hook () | |
| 535 | (save-excursion | |
| 536 | (skip-chars-backward " \t") | |
| 537 | (max (+ 1 (current-column)) | |
| 538 | comment-column))) | |
| 539 | ||
| 540 | (defun fortran-indent-comment () | |
| 541 | "Align or create comment on current line. | |
| 542 | Existing comments of all types are recognized and aligned. | |
| 543 | If the line has no comment, a side-by-side comment is inserted and aligned | |
| 544 | if the value of comment-start is not nil. | |
| 545 | Otherwise, a separate-line comment is inserted, on this line | |
| 546 | or on a new line inserted before this line if this line is not blank." | |
| 547 | (interactive) | |
| 548 | (beginning-of-line) | |
| 549 | ;; Recognize existing comments of either kind. | |
| 550 | (cond ((looking-at comment-line-start-skip) | |
| 551 | (fortran-indent-line)) | |
| 23029d77 | 552 | ((fortran-find-comment-start-skip) ; catches any inline comment and |
| b8cbdf43 RS |
553 | ; leaves point after comment-start-skip |
| 554 | (if comment-start-skip | |
| 555 | (progn (goto-char (match-beginning 0)) | |
| 556 | (if (not (= (current-column) (fortran-comment-hook))) | |
| 557 | (progn (delete-horizontal-space) | |
| 558 | (indent-to (fortran-comment-hook))))) | |
| 559 | (end-of-line))) ; otherwise goto end of line or sth else? | |
| 3dd63760 JB |
560 | ;; No existing comment. |
| 561 | ;; If side-by-side comments are defined, insert one, | |
| 562 | ;; unless line is now blank. | |
| 563 | ((and comment-start (not (looking-at "^[ \t]*$"))) | |
| 564 | (end-of-line) | |
| 565 | (delete-horizontal-space) | |
| 566 | (indent-to (fortran-comment-hook)) | |
| 567 | (insert comment-start)) | |
| 568 | ;; Else insert separate-line comment, making a new line if nec. | |
| 569 | (t | |
| 570 | (if (looking-at "^[ \t]*$") | |
| 571 | (delete-horizontal-space) | |
| 572 | (beginning-of-line) | |
| 573 | (insert "\n") | |
| 574 | (forward-char -1)) | |
| 575 | (insert comment-line-start) | |
| 576 | (insert-char (if (stringp fortran-comment-indent-char) | |
| 577 | (aref fortran-comment-indent-char 0) | |
| b8cbdf43 | 578 | fortran-comment-indent-char) |
| 3dd63760 JB |
579 | (- (calculate-fortran-indent) (current-column)))))) |
| 580 | ||
| 581 | (defun fortran-comment-region (beg-region end-region arg) | |
| 582 | "Comments every line in the region. | |
| 583 | Puts fortran-comment-region at the beginning of every line in the region. | |
| 584 | BEG-REGION and END-REGION are args which specify the region boundaries. | |
| 585 | With non-nil ARG, uncomments the region." | |
| 586 | (interactive "*r\nP") | |
| 587 | (let ((end-region-mark (make-marker)) (save-point (point-marker))) | |
| 588 | (set-marker end-region-mark end-region) | |
| 589 | (goto-char beg-region) | |
| 590 | (beginning-of-line) | |
| 591 | (if (not arg) ;comment the region | |
| 592 | (progn (insert fortran-comment-region) | |
| 593 | (while (and (= (forward-line 1) 0) | |
| 594 | (< (point) end-region-mark)) | |
| 595 | (insert fortran-comment-region))) | |
| 596 | (let ((com (regexp-quote fortran-comment-region))) ;uncomment the region | |
| 597 | (if (looking-at com) | |
| 598 | (delete-region (point) (match-end 0))) | |
| 599 | (while (and (= (forward-line 1) 0) | |
| 600 | (< (point) end-region-mark)) | |
| 601 | (if (looking-at com) | |
| 602 | (delete-region (point) (match-end 0)))))) | |
| 603 | (goto-char save-point) | |
| 604 | (set-marker end-region-mark nil) | |
| 605 | (set-marker save-point nil))) | |
| 606 | \f | |
| 607 | (defun fortran-abbrev-start () | |
| b8cbdf43 | 608 | "Typing ;\\[help-command] or ;? lists all the Fortran abbrevs. |
| 3dd63760 JB |
609 | Any other key combination is executed normally." |
| 610 | (interactive) | |
| 611 | (let (c) | |
| 612 | (insert last-command-char) | |
| d654e8ce RS |
613 | (if (or (eq (setq c (read-event)) ??) ;insert char if not equal to `?' |
| 614 | (eq c help-char)) | |
| 3dd63760 | 615 | (fortran-abbrev-help) |
| dbc4e1c1 | 616 | (setq unread-command-events (list c))))) |
| 3dd63760 JB |
617 | |
| 618 | (defun fortran-abbrev-help () | |
| 619 | "List the currently defined abbrevs in Fortran mode." | |
| 620 | (interactive) | |
| 621 | (message "Listing abbrev table...") | |
| e80f2147 | 622 | (display-buffer (fortran-prepare-abbrev-list-buffer)) |
| 3dd63760 JB |
623 | (message "Listing abbrev table...done")) |
| 624 | ||
| e80f2147 RS |
625 | (defun fortran-prepare-abbrev-list-buffer () |
| 626 | (save-excursion | |
| 627 | (set-buffer (get-buffer-create "*Abbrevs*")) | |
| 628 | (erase-buffer) | |
| 4632a893 | 629 | (insert-abbrev-table-description 'fortran-mode-abbrev-table t) |
| e80f2147 RS |
630 | (goto-char (point-min)) |
| 631 | (set-buffer-modified-p nil) | |
| 632 | (edit-abbrevs-mode)) | |
| 633 | (get-buffer-create "*Abbrevs*")) | |
| 634 | ||
| 3dd63760 JB |
635 | (defun fortran-column-ruler () |
| 636 | "Inserts a column ruler momentarily above current line, till next keystroke. | |
| 5a8d870b RS |
637 | The ruler is defined by the value of `fortran-column-ruler-fixed' when in fixed |
| 638 | format mode, and `fortran-column-ruler-tab' when in TAB format mode. | |
| 3dd63760 JB |
639 | The key typed is executed unless it is SPC." |
| 640 | (interactive) | |
| 641 | (momentary-string-display | |
| 23029d77 JB |
642 | (if indent-tabs-mode |
| 643 | fortran-column-ruler-tab | |
| 644 | fortran-column-ruler-fixed) | |
| 645 | (save-excursion | |
| 646 | (beginning-of-line) | |
| 647 | (if (eq (window-start (selected-window)) | |
| 648 | (window-point (selected-window))) | |
| 649 | (progn (forward-line) (point)) | |
| 650 | (point))) | |
| 3dd63760 JB |
651 | nil "Type SPC or any command to erase ruler.")) |
| 652 | ||
| 653 | (defun fortran-window-create () | |
| 654 | "Makes the window 72 columns wide. | |
| fe668515 | 655 | See also `fortran-window-create-momentarily'." |
| 3dd63760 JB |
656 | (interactive) |
| 657 | (condition-case error | |
| 658 | (progn | |
| 659 | (let ((window-min-width 2)) | |
| 23029d77 JB |
660 | (if (< (window-width) (frame-width)) |
| 661 | (enlarge-window-horizontally (- (frame-width) | |
| 3dd63760 JB |
662 | (window-width) 1))) |
| 663 | (split-window-horizontally 73) | |
| 664 | (other-window 1) | |
| 665 | (switch-to-buffer " fortran-window-extra" t) | |
| 666 | (select-window (previous-window)))) | |
| b8cbdf43 | 667 | (error (message "No room for Fortran window.") |
| 3dd63760 JB |
668 | 'error))) |
| 669 | ||
| 670 | (defun fortran-window-create-momentarily (&optional arg) | |
| 671 | "Momentarily makes the window 72 columns wide. | |
| 672 | Optional ARG non-nil and non-unity disables the momentary feature. | |
| fe668515 | 673 | See also `fortran-window-create'." |
| 3dd63760 JB |
674 | (interactive "p") |
| 675 | (if (or (not arg) | |
| 676 | (= arg 1)) | |
| 677 | (save-window-excursion | |
| 678 | (if (not (equal (fortran-window-create) 'error)) | |
| 679 | (progn (message "Type SPC to continue editing.") | |
| d654e8ce | 680 | (let ((char (read-event))) |
| 3dd63760 | 681 | (or (equal char (string-to-char " ")) |
| dbc4e1c1 | 682 | (setq unread-command-events (list char))))))) |
| 3dd63760 JB |
683 | (fortran-window-create))) |
| 684 | ||
| 685 | (defun fortran-split-line () | |
| 686 | "Break line at point and insert continuation marker and alignment." | |
| 687 | (interactive) | |
| 688 | (delete-horizontal-space) | |
| 689 | (if (save-excursion (beginning-of-line) (looking-at comment-line-start-skip)) | |
| 690 | (insert "\n" comment-line-start " ") | |
| 23029d77 | 691 | (if indent-tabs-mode |
| 3dd63760 JB |
692 | (progn |
| 693 | (insert "\n\t") | |
| 694 | (insert-char (fortran-numerical-continuation-char) 1)) | |
| b8cbdf43 RS |
695 | (insert "\n " fortran-continuation-string)));Space after \n important |
| 696 | (fortran-indent-line)) ;when the cont string is C, c or *. | |
| 3dd63760 JB |
697 | |
| 698 | (defun fortran-numerical-continuation-char () | |
| b56eb7c9 | 699 | "Return a digit for tab-digit style of continuation lines. |
| 3dd63760 JB |
700 | If, previous line is a tab-digit continuation line, returns that digit |
| 701 | plus one. Otherwise return 1. Zero not allowed." | |
| 702 | (save-excursion | |
| 703 | (forward-line -1) | |
| 704 | (if (looking-at "\t[1-9]") | |
| 705 | (+ ?1 (% (- (char-after (+ (point) 1)) ?0) 9)) | |
| 706 | ?1))) | |
| 707 | ||
| 708 | (defun delete-horizontal-regexp (chars) | |
| 709 | "Delete all characters in CHARS around point. | |
| 710 | CHARS is like the inside of a [...] in a regular expression | |
| 711 | except that ] is never special and \ quotes ^, - or \." | |
| 712 | (interactive "*s") | |
| 713 | (skip-chars-backward chars) | |
| 714 | (delete-region (point) (progn (skip-chars-forward chars) (point)))) | |
| 715 | ||
| 716 | (defun fortran-electric-line-number (arg) | |
| 717 | "Self insert, but if part of a Fortran line number indent it automatically. | |
| 718 | Auto-indent does not happen if a numeric arg is used." | |
| 3dd63760 JB |
719 | (interactive "P") |
| 720 | (if (or arg (not fortran-electric-line-number)) | |
| 721 | (if arg | |
| b8cbdf43 | 722 | (self-insert-command (prefix-numeric-value arg)) |
| 3dd63760 JB |
723 | (self-insert-command 1)) |
| 724 | (if (or (and (= 5 (current-column)) | |
| 725 | (save-excursion | |
| 726 | (beginning-of-line) | |
| 727 | (looking-at " ")));In col 5 with only spaces to left. | |
| 23029d77 JB |
728 | (and (= (if indent-tabs-mode |
| 729 | fortran-minimum-statement-indent-tab | |
| 730 | fortran-minimum-statement-indent-fixed) (current-column)) | |
| 3dd63760 JB |
731 | (save-excursion |
| 732 | (beginning-of-line) | |
| 733 | (looking-at "\t"));In col 8 with a single tab to the left. | |
| 734 | (not (or (eq last-command 'fortran-indent-line) | |
| 735 | (eq last-command | |
| aa4ed68c | 736 | 'fortran-indent-new-line)))) |
| 3dd63760 JB |
737 | (save-excursion |
| 738 | (re-search-backward "[^ \t0-9]" | |
| 739 | (save-excursion | |
| 740 | (beginning-of-line) | |
| 741 | (point)) | |
| 742 | t)) ;not a line number | |
| 743 | (looking-at "[0-9]") ;within a line number | |
| 744 | ) | |
| b8cbdf43 | 745 | (self-insert-command (prefix-numeric-value arg)) |
| 3dd63760 JB |
746 | (skip-chars-backward " \t") |
| 747 | (insert last-command-char) | |
| 748 | (fortran-indent-line)))) | |
| 749 | \f | |
| 750 | (defun beginning-of-fortran-subprogram () | |
| b8cbdf43 | 751 | "Moves point to the beginning of the current Fortran subprogram." |
| 3dd63760 JB |
752 | (interactive) |
| 753 | (let ((case-fold-search t)) | |
| 754 | (beginning-of-line -1) | |
| 755 | (re-search-backward "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]" nil 'move) | |
| 756 | (if (looking-at "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]") | |
| 757 | (forward-line 1)))) | |
| 758 | ||
| 759 | (defun end-of-fortran-subprogram () | |
| b8cbdf43 | 760 | "Moves point to the end of the current Fortran subprogram." |
| 3dd63760 JB |
761 | (interactive) |
| 762 | (let ((case-fold-search t)) | |
| 763 | (beginning-of-line 2) | |
| 764 | (re-search-forward "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]" nil 'move) | |
| 765 | (goto-char (match-beginning 0)) | |
| 766 | (forward-line 1))) | |
| 767 | ||
| 768 | (defun mark-fortran-subprogram () | |
| b8cbdf43 | 769 | "Put mark at end of Fortran subprogram, point at beginning. |
| 3dd63760 JB |
770 | The marks are pushed." |
| 771 | (interactive) | |
| 772 | (end-of-fortran-subprogram) | |
| 773 | (push-mark (point)) | |
| 774 | (beginning-of-fortran-subprogram)) | |
| b8cbdf43 | 775 | |
| 3dd63760 | 776 | (defun fortran-previous-statement () |
| b8cbdf43 RS |
777 | "Moves point to beginning of the previous Fortran statement. |
| 778 | Returns `first-statement' if that statement is the first | |
| 3dd63760 JB |
779 | non-comment Fortran statement in the file, and nil otherwise." |
| 780 | (interactive) | |
| 781 | (let (not-first-statement continue-test) | |
| 782 | (beginning-of-line) | |
| 783 | (setq continue-test | |
| b8cbdf43 RS |
784 | (and |
| 785 | (not (looking-at comment-line-start-skip)) | |
| 786 | (or (looking-at | |
| 3dd63760 | 787 | (concat "[ \t]*" (regexp-quote fortran-continuation-string))) |
| b8cbdf43 RS |
788 | (or (looking-at " [^ 0\n]") |
| 789 | (looking-at "\t[1-9]"))))) | |
| 3dd63760 JB |
790 | (while (and (setq not-first-statement (= (forward-line -1) 0)) |
| 791 | (or (looking-at comment-line-start-skip) | |
| 792 | (looking-at "[ \t]*$") | |
| 793 | (looking-at " [^ 0\n]") | |
| 794 | (looking-at "\t[1-9]") | |
| 795 | (looking-at (concat "[ \t]*" comment-start-skip))))) | |
| 796 | (cond ((and continue-test | |
| 797 | (not not-first-statement)) | |
| 798 | (message "Incomplete continuation statement.")) | |
| 799 | (continue-test | |
| 800 | (fortran-previous-statement)) | |
| 801 | ((not not-first-statement) | |
| 802 | 'first-statement)))) | |
| 803 | ||
| 804 | (defun fortran-next-statement () | |
| b8cbdf43 | 805 | "Moves point to beginning of the next Fortran statement. |
| 3dd63760 JB |
806 | Returns `last-statement' if that statement is the last |
| 807 | non-comment Fortran statement in the file, and nil otherwise." | |
| 808 | (interactive) | |
| 809 | (let (not-last-statement) | |
| 810 | (beginning-of-line) | |
| b8cbdf43 RS |
811 | (while (and (setq not-last-statement |
| 812 | (and (= (forward-line 1) 0) | |
| 813 | (not (eobp)))) | |
| 3dd63760 JB |
814 | (or (looking-at comment-line-start-skip) |
| 815 | (looking-at "[ \t]*$") | |
| 816 | (looking-at " [^ 0\n]") | |
| 817 | (looking-at "\t[1-9]") | |
| 818 | (looking-at (concat "[ \t]*" comment-start-skip))))) | |
| 819 | (if (not not-last-statement) | |
| 820 | 'last-statement))) | |
| 821 | \f | |
| 822 | (defun fortran-blink-matching-if () | |
| c5af0a18 RS |
823 | ;; From a Fortran ENDIF statement, blink the matching IF statement. |
| 824 | (let ((top-of-window (window-start)) matching-if | |
| 3dd63760 JB |
825 | (endif-point (point)) message) |
| 826 | (if (save-excursion (beginning-of-line) | |
| 827 | (skip-chars-forward " \t0-9") | |
| 828 | (looking-at "end[ \t]*if\\b")) | |
| 829 | (progn | |
| c5af0a18 RS |
830 | (if (not (setq matching-if (fortran-beginning-if))) |
| 831 | (setq message "No matching if.") | |
| 832 | (if (< matching-if top-of-window) | |
| 833 | (save-excursion | |
| 834 | (goto-char matching-if) | |
| 835 | (beginning-of-line) | |
| 836 | (setq message | |
| 837 | (concat "Matches " | |
| 838 | (buffer-substring | |
| 839 | (point) (progn (end-of-line) (point)))))))) | |
| 3dd63760 | 840 | (if message |
| b8cbdf43 | 841 | (message "%s" message) |
| 3dd63760 JB |
842 | (goto-char matching-if) |
| 843 | (sit-for 1) | |
| 844 | (goto-char endif-point)))))) | |
| 947388af RS |
845 | |
| 846 | (defun fortran-blink-matching-do () | |
| 847 | ;; From a Fortran ENDDO statement, blink on the matching DO or DO WHILE | |
| 848 | ;; statement. This is basically copied from fortran-blink-matching-if. | |
| c5af0a18 | 849 | (let ((top-of-window (window-start)) matching-do |
| 947388af RS |
850 | (enddo-point (point)) message) |
| 851 | (if (save-excursion (beginning-of-line) | |
| 852 | (skip-chars-forward " \t0-9") | |
| 853 | (looking-at "end[ \t]*do\\b")) | |
| 854 | (progn | |
| c5af0a18 RS |
855 | (if (not (setq matching-do (fortran-beginning-do))) |
| 856 | (setq message "No matching do.") | |
| 857 | (if (< matching-do top-of-window) | |
| 858 | (save-excursion | |
| 859 | (goto-char matching-do) | |
| 860 | (beginning-of-line) | |
| 861 | (setq message | |
| 862 | (concat "Matches " | |
| 863 | (buffer-substring | |
| 864 | (point) (progn (end-of-line) (point)))))))) | |
| 947388af RS |
865 | (if message |
| 866 | (message "%s" message) | |
| 867 | (goto-char matching-do) | |
| 868 | (sit-for 1) | |
| 869 | (goto-char enddo-point)))))) | |
| c5af0a18 RS |
870 | |
| 871 | (defun fortran-mark-do () | |
| 872 | "Put mark at end of Fortran DO [WHILE]-ENDDO construct, point at beginning. | |
| 873 | The marks are pushed." | |
| 874 | (interactive) | |
| 875 | (let (enddo-point do-point) | |
| 876 | (if (setq enddo-point (fortran-end-do)) | |
| 877 | (if (not (setq do-point (fortran-beginning-do))) | |
| 878 | (message "No matching do.") | |
| 879 | ;; Set mark, move point. | |
| 880 | (goto-char enddo-point) | |
| 881 | (push-mark) | |
| 882 | (goto-char do-point))))) | |
| 883 | ||
| 884 | (defun fortran-end-do () | |
| 885 | ;; Search forward for first unmatched ENDDO. Return point or nil. | |
| 886 | (if (save-excursion (beginning-of-line) | |
| 887 | (skip-chars-forward " \t0-9") | |
| 888 | (looking-at "end[ \t]*do\\b")) | |
| 889 | ;; Sitting on one. | |
| 890 | (match-beginning 0) | |
| 891 | ;; Search for one. | |
| 892 | (save-excursion | |
| 893 | (let ((count 1)) | |
| 894 | (while (and (not (= count 0)) | |
| 895 | (not (eq (fortran-next-statement) 'last-statement)) | |
| 896 | ;; Keep local to subprogram | |
| 897 | (not (looking-at "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]"))) | |
| 898 | ||
| 899 | (skip-chars-forward " \t0-9") | |
| 900 | (cond ((looking-at "end[ \t]*do\\b") | |
| 901 | (setq count (- count 1))) | |
| 902 | ((looking-at "do[ \t]+[^0-9]") | |
| 903 | (setq count (+ count 1))))) | |
| 904 | (and (= count 0) | |
| 905 | ;; All pairs accounted for. | |
| 906 | (point)))))) | |
| 907 | ||
| 908 | (defun fortran-beginning-do () | |
| 909 | ;; Search backwards for first unmatched DO [WHILE]. Return point or nil. | |
| 910 | (if (save-excursion (beginning-of-line) | |
| 911 | (skip-chars-forward " \t0-9") | |
| 912 | (looking-at "do[ \t]+")) | |
| 913 | ;; Sitting on one. | |
| 914 | (match-beginning 0) | |
| 915 | ;; Search for one. | |
| 916 | (save-excursion | |
| 917 | (let ((count 1)) | |
| 918 | (while (and (not (= count 0)) | |
| 919 | (not (eq (fortran-previous-statement) 'first-statement)) | |
| 920 | ;; Keep local to subprogram | |
| 921 | (not (looking-at "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]"))) | |
| 922 | ||
| 923 | (skip-chars-forward " \t0-9") | |
| 924 | (cond ((looking-at "do[ \t]+[^0-9]") | |
| 925 | (setq count (- count 1))) | |
| 926 | ((looking-at "end[ \t]*do\\b") | |
| 927 | (setq count (+ count 1))))) | |
| 928 | ||
| 929 | (and (= count 0) | |
| 930 | ;; All pairs accounted for. | |
| 931 | (point)))))) | |
| 932 | ||
| 933 | (defun fortran-mark-if () | |
| 934 | "Put mark at end of Fortran IF-ENDIF construct, point at beginning. | |
| 935 | The marks are pushed." | |
| 936 | (interactive) | |
| 937 | (let (endif-point if-point) | |
| 938 | (if (setq endif-point (fortran-end-if)) | |
| 939 | (if (not (setq if-point (fortran-beginning-if))) | |
| 940 | (message "No matching if.") | |
| 941 | ;; Set mark, move point. | |
| 942 | (goto-char endif-point) | |
| 943 | (push-mark) | |
| 944 | (goto-char if-point))))) | |
| 945 | ||
| 946 | (defun fortran-end-if () | |
| 947 | ;; Search forwards for first unmatched ENDIF. Return point or nil. | |
| 948 | (if (save-excursion (beginning-of-line) | |
| 949 | (skip-chars-forward " \t0-9") | |
| 950 | (looking-at "end[ \t]*if\\b")) | |
| 951 | ;; Sitting on one. | |
| 952 | (match-beginning 0) | |
| 953 | ;; Search for one. The point has been already been moved to first | |
| 954 | ;; letter on line but this should not cause troubles. | |
| 955 | (save-excursion | |
| 956 | (let ((count 1)) | |
| 957 | (while (and (not (= count 0)) | |
| 958 | (not (eq (fortran-next-statement) 'last-statement)) | |
| 959 | ;; Keep local to subprogram. | |
| 960 | (not (looking-at | |
| 961 | "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]"))) | |
| 962 | ||
| 963 | (skip-chars-forward " \t0-9") | |
| 964 | (cond ((looking-at "end[ \t]*if\\b") | |
| 965 | (setq count (- count 1))) | |
| 966 | ||
| 967 | ((looking-at "if[ \t]*(") | |
| 968 | (save-excursion | |
| 969 | (if (or | |
| 970 | (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t(=a-z0-9]") | |
| 971 | (let (then-test) ; Multi-line if-then. | |
| 972 | (while | |
| 973 | (and (= (forward-line 1) 0) | |
| 974 | ;; Search forward for then. | |
| 975 | (or (looking-at " [^ 0\n]") | |
| 976 | (looking-at "\t[1-9]")) | |
| 977 | (not | |
| 978 | (setq then-test | |
| 979 | (looking-at | |
| 980 | ".*then\\b[ \t]*[^ \t(=a-z0-9]"))))) | |
| 981 | then-test)) | |
| 982 | (setq count (+ count 1))))))) | |
| 983 | ||
| 984 | (and (= count 0) | |
| 985 | ;; All pairs accounted for. | |
| 986 | (point)))))) | |
| 987 | ||
| 988 | (defun fortran-beginning-if () | |
| 989 | ;; Search backwards for first unmatched IF-THEN. Return point or nil. | |
| 990 | (if (save-excursion | |
| 991 | ;; May be sitting on multi-line if-then statement, first move to | |
| 992 | ;; beginning of current statement. Note: `fortran-previous-statement' | |
| 993 | ;; moves to previous statement *unless* current statement is first | |
| 994 | ;; one. Only move forward if not first-statement. | |
| 995 | (if (not (eq (fortran-previous-statement) 'first-statement)) | |
| 996 | (fortran-next-statement)) | |
| 997 | (skip-chars-forward " \t0-9") | |
| 998 | (and | |
| 999 | (looking-at "if[ \t]*(") | |
| 1000 | (save-match-data | |
| 1001 | (or (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t(=a-z0-9]") | |
| 1002 | ;; Multi-line if-then. | |
| 1003 | (let (then-test) | |
| 1004 | (while | |
| 1005 | (and (= (forward-line 1) 0) | |
| 1006 | ;; Search forward for then. | |
| 1007 | (or (looking-at " [^ 0\n]") | |
| 1008 | (looking-at "\t[1-9]")) | |
| 1009 | (not | |
| 1010 | (setq then-test | |
| 1011 | (looking-at | |
| 1012 | ".*then\\b[ \t]*[^ \t(=a-z0-9]"))))) | |
| 1013 | then-test))))) | |
| 1014 | ;; Sitting on one. | |
| 1015 | (match-beginning 0) | |
| 1016 | ;; Search for one. | |
| 1017 | (save-excursion | |
| 1018 | (let ((count 1)) | |
| 1019 | (while (and (not (= count 0)) | |
| 1020 | (not (eq (fortran-previous-statement) 'first-statement)) | |
| 1021 | ;; Keep local to subprogram. | |
| 1022 | (not (looking-at | |
| 1023 | "^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]"))) | |
| 1024 | ||
| 1025 | (skip-chars-forward " \t0-9") | |
| 1026 | (cond ((looking-at "if[ \t]*(") | |
| 1027 | (save-excursion | |
| 1028 | (if (or | |
| 1029 | (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t(=a-z0-9]") | |
| 1030 | (let (then-test) ; Multi-line if-then. | |
| 1031 | (while | |
| 1032 | (and (= (forward-line 1) 0) | |
| 1033 | ;; Search forward for then. | |
| 1034 | (or (looking-at " [^ 0\n]") | |
| 1035 | (looking-at "\t[1-9]")) | |
| 1036 | (not | |
| 1037 | (setq then-test | |
| 1038 | (looking-at | |
| 1039 | ".*then\\b[ \t]*[^ \t(=a-z0-9]"))))) | |
| 1040 | then-test)) | |
| 1041 | (setq count (- count 1))))) | |
| 1042 | ((looking-at "end[ \t]*if\\b") | |
| 1043 | (setq count (+ count 1))))) | |
| 1044 | ||
| 1045 | (and (= count 0) | |
| 1046 | ;; All pairs accounted for. | |
| 1047 | (point)))))) | |
| 3dd63760 JB |
1048 | \f |
| 1049 | (defun fortran-indent-line () | |
| b8cbdf43 | 1050 | "Indents current Fortran line based on its contents and on previous lines." |
| 3dd63760 JB |
1051 | (interactive) |
| 1052 | (let ((cfi (calculate-fortran-indent))) | |
| 1053 | (save-excursion | |
| 1054 | (beginning-of-line) | |
| 1055 | (if (or (not (= cfi (fortran-current-line-indentation))) | |
| 1056 | (and (re-search-forward "^[ \t]*[0-9]+" (+ (point) 4) t) | |
| 1057 | (not (fortran-line-number-indented-correctly-p)))) | |
| 1058 | (fortran-indent-to-column cfi) | |
| 1059 | (beginning-of-line) | |
| 1060 | (if (and (not (looking-at comment-line-start-skip)) | |
| 23029d77 | 1061 | (fortran-find-comment-start-skip)) |
| 3dd63760 JB |
1062 | (fortran-indent-comment)))) |
| 1063 | ;; Never leave point in left margin. | |
| 1064 | (if (< (current-column) cfi) | |
| 1065 | (move-to-column cfi)) | |
| 23029d77 | 1066 | (if (and auto-fill-function |
| b8cbdf43 RS |
1067 | (> (save-excursion (end-of-line) (current-column)) fill-column)) |
| 1068 | (save-excursion | |
| 1069 | (end-of-line) | |
| 4254fe58 | 1070 | (fortran-fill))) |
| 3dd63760 | 1071 | (if fortran-blink-matching-if |
| 947388af RS |
1072 | (progn |
| 1073 | (fortran-blink-matching-if) | |
| 1074 | (fortran-blink-matching-do))))) | |
| 3dd63760 | 1075 | |
| aa4ed68c | 1076 | (defun fortran-indent-new-line () |
| b8cbdf43 RS |
1077 | "Reindent the current Fortran line, insert a newline and indent the newline. |
| 1078 | An abbrev before point is expanded if `abbrev-mode' is non-nil." | |
| 3dd63760 JB |
1079 | (interactive) |
| 1080 | (if abbrev-mode (expand-abbrev)) | |
| 1081 | (save-excursion | |
| 1082 | (beginning-of-line) | |
| 1083 | (skip-chars-forward " \t") | |
| 1084 | (if (or (looking-at "[0-9]") ;Reindent only where it is most | |
| 1085 | (looking-at "end") ;likely to be necessary | |
| 1086 | (looking-at "else") | |
| 1087 | (looking-at (regexp-quote fortran-continuation-string))) | |
| 1088 | (fortran-indent-line))) | |
| b8cbdf43 | 1089 | (newline) |
| 3dd63760 | 1090 | (fortran-indent-line)) |
| b8cbdf43 | 1091 | |
| 3dd63760 JB |
1092 | (defun fortran-indent-subprogram () |
| 1093 | "Properly indents the Fortran subprogram which contains point." | |
| 1094 | (interactive) | |
| 1095 | (save-excursion | |
| 1096 | (mark-fortran-subprogram) | |
| 1097 | (message "Indenting subprogram...") | |
| 1098 | (indent-region (point) (mark) nil)) | |
| 1099 | (message "Indenting subprogram...done.")) | |
| 1100 | ||
| 1101 | (defun calculate-fortran-indent () | |
| b8cbdf43 | 1102 | "Calculates the Fortran indent column based on previous lines." |
| 3dd63760 JB |
1103 | (let (icol first-statement (case-fold-search t) |
| 1104 | (fortran-minimum-statement-indent | |
| 23029d77 JB |
1105 | (if indent-tabs-mode |
| 1106 | fortran-minimum-statement-indent-tab | |
| 1107 | fortran-minimum-statement-indent-fixed))) | |
| 3dd63760 JB |
1108 | (save-excursion |
| 1109 | (setq first-statement (fortran-previous-statement)) | |
| 1110 | (if first-statement | |
| 1111 | (setq icol fortran-minimum-statement-indent) | |
| 1112 | (progn | |
| 1113 | (if (= (point) (point-min)) | |
| 1114 | (setq icol fortran-minimum-statement-indent) | |
| 1115 | (setq icol (fortran-current-line-indentation))) | |
| 1116 | (skip-chars-forward " \t0-9") | |
| 1117 | (cond ((looking-at "if[ \t]*(") | |
| b8cbdf43 | 1118 | (if (or (looking-at ".*)[ \t]*then\\b[ \t]*[^ \t_$(=a-z0-9]") |
| 3dd63760 JB |
1119 | (let (then-test) ;multi-line if-then |
| 1120 | (while (and (= (forward-line 1) 0) | |
| b8cbdf43 | 1121 | ;;search forward for then |
| 3dd63760 JB |
1122 | (or (looking-at " [^ 0\n]") |
| 1123 | (looking-at "\t[1-9]")) | |
| 1124 | (not (setq then-test (looking-at | |
| b8cbdf43 RS |
1125 | ".*then\\b[ \t]\ |
| 1126 | *[^ \t_$(=a-z0-9]"))))) | |
| 3dd63760 JB |
1127 | then-test)) |
| 1128 | (setq icol (+ icol fortran-if-indent)))) | |
| 1129 | ((looking-at "\\(else\\|elseif\\)\\b") | |
| 1130 | (setq icol (+ icol fortran-if-indent))) | |
| 5a8d870b RS |
1131 | ((looking-at "select[ \t]*case[ \t](.*)\\b") |
| 1132 | (setq icol (+ icol fortran-if-indent))) | |
| 1133 | ((looking-at "case[ \t]*(.*)[ \t]*\n") | |
| 1134 | (setq icol (+ icol fortran-if-indent))) | |
| 1135 | ((looking-at "case[ \t]*default\\b") | |
| 1136 | (setq icol (+ icol fortran-if-indent))) | |
| b8cbdf43 RS |
1137 | ((looking-at "\\(otherwise\\|else[ \t]*where\\)\\b") |
| 1138 | (setq icol (+ icol fortran-if-indent))) | |
| f93f92f1 | 1139 | ((looking-at "where[ \t]*(.*)[ \t]*\n") |
| b8cbdf43 | 1140 | (setq icol (+ icol fortran-if-indent))) |
| 3dd63760 JB |
1141 | ((looking-at "do\\b") |
| 1142 | (setq icol (+ icol fortran-do-indent))) | |
| b8cbdf43 | 1143 | ((looking-at |
| 5a8d870b | 1144 | "\\(structure\\|union\\|map\\|interface\\)\\b[ \t]*[^ \t=(a-z]") |
| b8cbdf43 | 1145 | (setq icol (+ icol fortran-structure-indent))) |
| 3dd63760 | 1146 | ((looking-at "end\\b[ \t]*[^ \t=(a-z]") |
| b8cbdf43 | 1147 | ;; Previous END resets indent to minimum |
| 3dd63760 JB |
1148 | (setq icol fortran-minimum-statement-indent)))))) |
| 1149 | (save-excursion | |
| 1150 | (beginning-of-line) | |
| 1151 | (cond ((looking-at "[ \t]*$")) | |
| 1152 | ((looking-at comment-line-start-skip) | |
| 3dd63760 | 1153 | (cond ((eq fortran-comment-indent-style 'relative) |
| 23029d77 | 1154 | (setq icol (+ icol fortran-comment-line-extra-indent))) |
| 3dd63760 | 1155 | ((eq fortran-comment-indent-style 'fixed) |
| b8cbdf43 | 1156 | (setq icol (+ fortran-minimum-statement-indent |
| 23029d77 | 1157 | fortran-comment-line-extra-indent)))) |
| b8cbdf43 | 1158 | (setq fortran-minimum-statement-indent 0)) |
| 3dd63760 | 1159 | ((or (looking-at (concat "[ \t]*" |
| b8cbdf43 RS |
1160 | (regexp-quote |
| 1161 | fortran-continuation-string))) | |
| 3dd63760 JB |
1162 | (looking-at " [^ 0\n]") |
| 1163 | (looking-at "\t[1-9]")) | |
| 1164 | (setq icol (+ icol fortran-continuation-indent))) | |
| b56eb7c9 RS |
1165 | ((looking-at "[ \t]*#") ; Check for cpp directive. |
| 1166 | (setq fortran-minimum-statement-indent 0 icol 0)) | |
| 3dd63760 JB |
1167 | (first-statement) |
| 1168 | ((and fortran-check-all-num-for-matching-do | |
| 1169 | (looking-at "[ \t]*[0-9]+") | |
| 1170 | (fortran-check-for-matching-do)) | |
| 1171 | (setq icol (- icol fortran-do-indent))) | |
| 1172 | (t | |
| 1173 | (skip-chars-forward " \t0-9") | |
| 1174 | (cond ((looking-at "end[ \t]*if\\b") | |
| 1175 | (setq icol (- icol fortran-if-indent))) | |
| 1176 | ((looking-at "\\(else\\|elseif\\)\\b") | |
| 1177 | (setq icol (- icol fortran-if-indent))) | |
| 5a8d870b RS |
1178 | ((looking-at "case[ \t]*(.*)[ \t]*\n") |
| 1179 | (setq icol (- icol fortran-if-indent))) | |
| 1180 | ((looking-at "case[ \t]*default\\b") | |
| 1181 | (setq icol (- icol fortran-if-indent))) | |
| b8cbdf43 RS |
1182 | ((looking-at "\\(otherwise\\|else[ \t]*where\\)\\b") |
| 1183 | (setq icol (- icol fortran-if-indent))) | |
| 1184 | ((looking-at "end[ \t]*where\\b") | |
| 1185 | (setq icol (- icol fortran-if-indent))) | |
| 3dd63760 JB |
1186 | ((and (looking-at "continue\\b") |
| 1187 | (fortran-check-for-matching-do)) | |
| 1188 | (setq icol (- icol fortran-do-indent))) | |
| 1189 | ((looking-at "end[ \t]*do\\b") | |
| 1190 | (setq icol (- icol fortran-do-indent))) | |
| b8cbdf43 RS |
1191 | ((looking-at |
| 1192 | "end[ \t]*\ | |
| 5a8d870b | 1193 | \\(structure\\|union\\|map\\|interface\\)\\b[ \t]*[^ \t=(a-z]") |
| b8cbdf43 | 1194 | (setq icol (- icol fortran-structure-indent))) |
| 5a8d870b RS |
1195 | ((looking-at |
| 1196 | "end[ \t]*select\\b[ \t]*[^ \t=(a-z]") | |
| 1197 | (setq icol (- icol fortran-if-indent))) | |
| 3dd63760 JB |
1198 | ((and (looking-at "end\\b[ \t]*[^ \t=(a-z]") |
| 1199 | (not (= icol fortran-minimum-statement-indent))) | |
| 1200 | (message "Warning: `end' not in column %d. Probably\ | |
| 1201 | an unclosed block." fortran-minimum-statement-indent)))))) | |
| 1202 | (max fortran-minimum-statement-indent icol))) | |
| 1203 | \f | |
| 1204 | (defun fortran-current-line-indentation () | |
| 1205 | "Indentation of current line, ignoring Fortran line number or continuation. | |
| 1206 | This is the column position of the first non-whitespace character | |
| 1207 | aside from the line number and/or column 5/8 line-continuation character. | |
| 1208 | For comment lines, returns indentation of the first | |
| 1209 | non-indentation text within the comment." | |
| 1210 | (save-excursion | |
| 1211 | (beginning-of-line) | |
| 1212 | (cond ((looking-at comment-line-start-skip) | |
| 1213 | (goto-char (match-end 0)) | |
| 1214 | (skip-chars-forward | |
| b8cbdf43 RS |
1215 | (if (stringp fortran-comment-indent-char) |
| 1216 | fortran-comment-indent-char | |
| 1217 | (char-to-string fortran-comment-indent-char)))) | |
| 3dd63760 | 1218 | ((or (looking-at " [^ 0\n]") |
| b8cbdf43 | 1219 | (looking-at "\t[1-9]")) |
| 3dd63760 JB |
1220 | (goto-char (match-end 0))) |
| 1221 | (t | |
| 1222 | ;; Move past line number. | |
| b8cbdf43 RS |
1223 | (skip-chars-forward "[ \t0-9]");From Uli |
| 1224 | )) | |
| 3dd63760 JB |
1225 | ;; Move past whitespace. |
| 1226 | (skip-chars-forward " \t") | |
| 1227 | (current-column))) | |
| 1228 | ||
| 1229 | (defun fortran-indent-to-column (col) | |
| 1230 | "Indents current line with spaces to column COL. | |
| 1231 | notes: 1) A non-zero/non-blank character in column 5 indicates a continuation | |
| 1232 | line, and this continuation character is retained on indentation; | |
| b8cbdf43 RS |
1233 | 2) If `fortran-continuation-string' is the first non-whitespace |
| 1234 | character, this is a continuation line; | |
| 3dd63760 JB |
1235 | 3) A non-continuation line which has a number as the first |
| 1236 | non-whitespace character is a numbered line. | |
| b8cbdf43 | 1237 | 4) A TAB followed by a digit indicates a continuation line." |
| 3dd63760 JB |
1238 | (save-excursion |
| 1239 | (beginning-of-line) | |
| 1240 | (if (looking-at comment-line-start-skip) | |
| 1241 | (if fortran-comment-indent-style | |
| 1242 | (let ((char (if (stringp fortran-comment-indent-char) | |
| 1243 | (aref fortran-comment-indent-char 0) | |
| b8cbdf43 | 1244 | fortran-comment-indent-char))) |
| 3dd63760 JB |
1245 | (goto-char (match-end 0)) |
| 1246 | (delete-horizontal-regexp (concat " \t" (char-to-string char))) | |
| 1247 | (insert-char char (- col (current-column))))) | |
| 1248 | (if (looking-at "\t[1-9]") | |
| 23029d77 | 1249 | (if indent-tabs-mode |
| 3dd63760 JB |
1250 | (goto-char (match-end 0)) |
| 1251 | (delete-char 2) | |
| 1252 | (insert " ") | |
| 1253 | (insert fortran-continuation-string)) | |
| 1254 | (if (looking-at " [^ 0\n]") | |
| 23029d77 | 1255 | (if indent-tabs-mode |
| 3dd63760 JB |
1256 | (progn (delete-char 6) |
| 1257 | (insert "\t") | |
| 1258 | (insert-char (fortran-numerical-continuation-char) 1)) | |
| 1259 | (forward-char 6)) | |
| 1260 | (delete-horizontal-space) | |
| b8cbdf43 RS |
1261 | ;; Put line number in columns 0-4 |
| 1262 | ;; or put continuation character in column 5. | |
| 3dd63760 JB |
1263 | (cond ((eobp)) |
| 1264 | ((looking-at (regexp-quote fortran-continuation-string)) | |
| 23029d77 | 1265 | (if indent-tabs-mode |
| 3dd63760 | 1266 | (progn |
| 23029d77 JB |
1267 | (indent-to |
| 1268 | (if indent-tabs-mode | |
| 1269 | fortran-minimum-statement-indent-tab | |
| 1270 | fortran-minimum-statement-indent-fixed)) | |
| 3dd63760 JB |
1271 | (delete-char 1) |
| 1272 | (insert-char (fortran-numerical-continuation-char) 1)) | |
| b8cbdf43 RS |
1273 | (indent-to 5) |
| 1274 | (forward-char 1))) | |
| 3dd63760 JB |
1275 | ((looking-at "[0-9]+") |
| 1276 | (let ((extra-space (- 5 (- (match-end 0) (point))))) | |
| 1277 | (if (< extra-space 0) | |
| 1278 | (message "Warning: line number exceeds 5-digit limit.") | |
| 1279 | (indent-to (min fortran-line-number-indent extra-space)))) | |
| 1280 | (skip-chars-forward "0-9"))))) | |
| 1281 | ;; Point is now after any continuation character or line number. | |
| 1282 | ;; Put body of statement where specified. | |
| 1283 | (delete-horizontal-space) | |
| 1284 | (indent-to col) | |
| 1285 | ;; Indent any comment following code on the same line. | |
| 1286 | (if (and comment-start-skip | |
| 23029d77 | 1287 | (fortran-find-comment-start-skip)) |
| 3dd63760 JB |
1288 | (progn (goto-char (match-beginning 0)) |
| 1289 | (if (not (= (current-column) (fortran-comment-hook))) | |
| 1290 | (progn (delete-horizontal-space) | |
| 1291 | (indent-to (fortran-comment-hook))))))))) | |
| 1292 | ||
| 1293 | (defun fortran-line-number-indented-correctly-p () | |
| 1294 | "Return t if current line's line number is correctly indented. | |
| 1295 | Do not call if there is no line number." | |
| 1296 | (save-excursion | |
| 1297 | (beginning-of-line) | |
| 1298 | (skip-chars-forward " \t") | |
| 1299 | (and (<= (current-column) fortran-line-number-indent) | |
| 1300 | (or (= (current-column) fortran-line-number-indent) | |
| 1301 | (progn (skip-chars-forward "0-9") | |
| 1302 | (= (current-column) 5)))))) | |
| 1303 | ||
| 1304 | (defun fortran-check-for-matching-do () | |
| b8cbdf43 | 1305 | "When called from a numbered statement, returns t if matching DO is found. |
| 3dd63760 JB |
1306 | Otherwise return a nil." |
| 1307 | (let (charnum | |
| 1308 | (case-fold-search t)) | |
| 1309 | (save-excursion | |
| 1310 | (beginning-of-line) | |
| 1311 | (if (looking-at "[ \t]*[0-9]+") | |
| 1312 | (progn | |
| 1313 | (skip-chars-forward " \t") | |
| 1314 | (skip-chars-forward "0") ;skip past leading zeros | |
| 1315 | (setq charnum (buffer-substring (point) | |
| 1316 | (progn (skip-chars-forward "0-9") | |
| 1317 | (point)))) | |
| 1318 | (beginning-of-line) | |
| 1319 | (and (re-search-backward | |
| f022dd89 SM |
1320 | (concat "\\(^[ \t0-9]*end\\b[ \t]*[^ \t=(a-z]\\)\\|" |
| 1321 | "\\(^[ \t0-9]*do[ \t]*0*" charnum "\\b\\)\\|" | |
| 1322 | "\\(^[ \t]*0*" charnum "\\b\\)") | |
| 3dd63760 JB |
1323 | nil t) |
| 1324 | (looking-at (concat "^[ \t0-9]*do[ \t]*0*" charnum)))))))) | |
| 1325 | ||
| 23029d77 | 1326 | (defun fortran-find-comment-start-skip () |
| b8cbdf43 RS |
1327 | "Move to past `comment-start-skip' found on current line. |
| 1328 | Return t if `comment-start-skip' found, nil if not." | |
| 1329 | ;;; In order to move point only if comment-start-skip is found, | |
| 1330 | ;;; this one uses a lot of save-excursions. Note that re-search-forward | |
| 1331 | ;;; moves point even if comment-start-skip is inside a string-constant. | |
| 1332 | ;;; Some code expects certain values for match-beginning and end | |
| 1333 | (interactive) | |
| f022dd89 SM |
1334 | (if (save-excursion |
| 1335 | (re-search-forward comment-start-skip | |
| 1336 | (save-excursion (end-of-line) (point)) t)) | |
| 1337 | (let ((save-match-beginning (match-beginning 0)) | |
| 1338 | (save-match-end (match-end 0))) | |
| 1339 | (if (fortran-is-in-string-p (match-beginning 0)) | |
| 1340 | (save-excursion | |
| 1341 | (goto-char save-match-end) | |
| 1342 | (fortran-find-comment-start-skip)) ; recurse for rest of line | |
| 1343 | (goto-char save-match-beginning) | |
| b8cbdf43 | 1344 | (re-search-forward comment-start-skip |
| f022dd89 SM |
1345 | (save-excursion (end-of-line) (point)) t) |
| 1346 | (goto-char (match-end 0)) | |
| 1347 | t)) | |
| 1348 | nil)) | |
| 1349 | ||
| 1350 | ;;;From: simon@gnu (Simon Marshall) | |
| 1351 | ;;; Find the next ! not in a string. | |
| 1352 | (defun fortran-match-!-comment (limit) | |
| 1353 | (let (found) | |
| 1354 | (while (and (setq found (search-forward "!" limit t)) | |
| 1355 | (fortran-is-in-string-p (point)))) | |
| 1356 | (if (not found) | |
| 1357 | nil | |
| 1358 | ;; Cheaper than `looking-at' "!.*". | |
| 1359 | (store-match-data | |
| 1360 | (list (1- (point)) (progn (end-of-line) (min (point) limit)))) | |
| 1361 | t))) | |
| 1362 | ||
| 1363 | ;; The above function is about 10% faster than the below... | |
| 1364 | ;;(defun fortran-match-!-comment (limit) | |
| 1365 | ;; (let (found) | |
| 1366 | ;; (while (and (setq found (re-search-forward "!.*" limit t)) | |
| 1367 | ;; (fortran-is-in-string-p (match-beginning 0)))) | |
| 1368 | ;; found)) | |
| b8cbdf43 | 1369 | |
| b56eb7c9 RS |
1370 | ;;;From: ralf@up3aud1.gwdg.de (Ralf Fassel) |
| 1371 | ;;; Test if TAB format continuation lines work. | |
| 1372 | (defun fortran-is-in-string-p (where) | |
| 1373 | "Return non-nil if POS (a buffer position) is inside a Fortran string, | |
| 1374 | nil else." | |
| 1375 | (save-excursion | |
| 1376 | (goto-char where) | |
| 1377 | (cond | |
| 1378 | ((bolp) nil) ; bol is never inside a string | |
| 1379 | ((save-excursion ; comment lines too | |
| 1380 | (beginning-of-line)(looking-at comment-line-start-skip)) nil) | |
| 1381 | (t (let (;; ok, serious now. Init some local vars: | |
| 1382 | (parse-state '(0 nil nil nil nil nil 0)) | |
| 1383 | (quoted-comment-start (if comment-start | |
| 1384 | (regexp-quote comment-start))) | |
| 1385 | (not-done t) | |
| 1386 | parse-limit | |
| 1387 | end-of-line | |
| 1388 | ) | |
| 1389 | ;; move to start of current statement | |
| 1390 | (fortran-next-statement) | |
| 1391 | (fortran-previous-statement) | |
| 1392 | ;; now parse up to WHERE | |
| 1393 | (while not-done | |
| 1394 | (if (or ;; skip to next line if: | |
| 1395 | ;; - comment line? | |
| 1396 | (looking-at comment-line-start-skip) | |
| 1397 | ;; - at end of line? | |
| 1398 | (eolp) | |
| 1399 | ;; - not in a string and after comment-start? | |
| 1400 | (and (not (nth 3 parse-state)) | |
| 1401 | comment-start | |
| 1402 | (equal comment-start | |
| 1403 | (char-to-string (preceding-char))))) | |
| 1404 | ;; get around a bug in forward-line in versions <= 18.57 | |
| 1405 | (if (or (> (forward-line 1) 0) (eobp)) | |
| 1406 | (setq not-done nil)) | |
| 1407 | ;; else: | |
| 1408 | ;; if we are at beginning of code line, skip any | |
| 1409 | ;; whitespace, labels and tab continuation markers. | |
| 1410 | (if (bolp) (skip-chars-forward " \t0-9")) | |
| 1411 | ;; if we are in column <= 5 now, check for continuation char | |
| 1412 | (cond ((= 5 (current-column)) (forward-char 1)) | |
| 1413 | ((and (< (current-column) 5) | |
| 1414 | (equal fortran-continuation-string | |
| 1415 | (char-to-string (following-char))) | |
| 1416 | (forward-char 1)))) | |
| 1417 | ;; find out parse-limit from here | |
| 1418 | (setq end-of-line (save-excursion (end-of-line)(point))) | |
| 1419 | (setq parse-limit (min where end-of-line)) | |
| 1420 | ;; parse max up to comment-start, if non-nil and in current line | |
| 1421 | (if comment-start | |
| 1422 | (save-excursion | |
| 1423 | (if (re-search-forward quoted-comment-start end-of-line t) | |
| 1424 | (setq parse-limit (min (point) parse-limit))))) | |
| 1425 | ;; now parse if still in limits | |
| 1426 | (if (< (point) where) | |
| 1427 | (setq parse-state (parse-partial-sexp | |
| 1428 | (point) parse-limit nil nil parse-state)) | |
| 1429 | (setq not-done nil)) | |
| 1430 | )) | |
| 1431 | ;; result is | |
| 1432 | (nth 3 parse-state)))))) | |
| b8cbdf43 RS |
1433 | |
| 1434 | (defun fortran-auto-fill-mode (arg) | |
| 1435 | "Toggle fortran-auto-fill mode. | |
| 1436 | With ARG, turn `fortran-auto-fill' mode on iff ARG is positive. | |
| 1437 | In `fortran-auto-fill' mode, inserting a space at a column beyond `fill-column' | |
| 1438 | automatically breaks the line at a previous space." | |
| 1439 | (interactive "P") | |
| 23029d77 | 1440 | (prog1 (setq auto-fill-function |
| b8cbdf43 | 1441 | (if (if (null arg) |
| 23029d77 | 1442 | (not auto-fill-function) |
| b8cbdf43 | 1443 | (> (prefix-numeric-value arg) 0)) |
| 4254fe58 | 1444 | 'fortran-do-auto-fill |
| b8cbdf43 | 1445 | nil)) |
| a716ac73 | 1446 | (force-mode-line-update))) |
| b8cbdf43 RS |
1447 | |
| 1448 | (defun fortran-do-auto-fill () | |
| 4254fe58 RS |
1449 | (if (> (current-column) fill-column) |
| 1450 | (fortran-indent-line))) | |
| 1451 | ||
| 1452 | (defun fortran-fill () | |
| b8cbdf43 RS |
1453 | (interactive) |
| 1454 | (let* ((opoint (point)) | |
| 1455 | (bol (save-excursion (beginning-of-line) (point))) | |
| 1456 | (eol (save-excursion (end-of-line) (point))) | |
| 1457 | (bos (min eol (+ bol (fortran-current-line-indentation)))) | |
| 1458 | (quote | |
| 1459 | (save-excursion | |
| 1460 | (goto-char bol) | |
| 1461 | (if (looking-at comment-line-start-skip) | |
| 1462 | nil ; OK to break quotes on comment lines. | |
| 1463 | (move-to-column fill-column) | |
| 23029d77 | 1464 | (cond ((fortran-is-in-string-p (point)) |
| b8cbdf43 RS |
1465 | (save-excursion (re-search-backward "[^']'[^']" bol t) |
| 1466 | (if fortran-break-before-delimiters | |
| 1467 | (point) | |
| 1468 | (1+ (point))))) | |
| 1469 | (t nil))))) | |
| 1470 | ;; | |
| 1471 | ;; decide where to split the line. If a position for a quoted | |
| 1472 | ;; string was found above then use that, else break the line | |
| 1473 | ;; before the last delimiter. | |
| eb8c3be9 | 1474 | ;; Delimiters are whitespace, commas, and operators. |
| b8cbdf43 RS |
1475 | ;; Will break before a pair of *'s. |
| 1476 | ;; | |
| 1477 | (fill-point | |
| 1478 | (or quote | |
| 1479 | (save-excursion | |
| 1480 | (move-to-column (1+ fill-column)) | |
| 1481 | (skip-chars-backward "^ \t\n,'+-/*=)" | |
| 1482 | ;;; (if fortran-break-before-delimiters | |
| 1483 | ;;; "^ \t\n,'+-/*=" "^ \t\n,'+-/*=)") | |
| 1484 | ) | |
| 1485 | (if (<= (point) (1+ bos)) | |
| 1486 | (progn | |
| 1487 | (move-to-column (1+ fill-column)) | |
| b56eb7c9 | 1488 | ;;;what is this doing??? |
| b8cbdf43 RS |
1489 | (if (not (re-search-forward "[\t\n,'+-/*)=]" eol t)) |
| 1490 | (goto-char bol)))) | |
| 1491 | (if (bolp) | |
| 1492 | (re-search-forward "[ \t]" opoint t) | |
| 1493 | (forward-char -1) | |
| 1494 | (if (looking-at "'") | |
| 1495 | (forward-char 1) | |
| 1496 | (skip-chars-backward " \t\*"))) | |
| 1497 | (if fortran-break-before-delimiters | |
| 1498 | (point) | |
| 1499 | (1+ (point)))))) | |
| 1500 | ) | |
| 1501 | ;; if we are in an in-line comment, don't break unless the | |
| 1502 | ;; line of code is longer than it should be. Otherwise | |
| 1503 | ;; break the line at the column computed above. | |
| 1504 | ;; | |
| 23029d77 | 1505 | ;; Need to use fortran-find-comment-start-skip to make sure that quoted !'s |
| b8cbdf43 RS |
1506 | ;; don't prevent a break. |
| 1507 | (if (not (or (save-excursion | |
| 1508 | (if (and (re-search-backward comment-start-skip bol t) | |
| 23029d77 | 1509 | (not (fortran-is-in-string-p (point)))) |
| b8cbdf43 RS |
1510 | (progn |
| 1511 | (skip-chars-backward " \t") | |
| 1512 | (< (current-column) (1+ fill-column))))) | |
| 1513 | (save-excursion | |
| 1514 | (goto-char fill-point) | |
| 1515 | (bolp)))) | |
| 1516 | (if (> (save-excursion | |
| 1517 | (goto-char fill-point) (current-column)) | |
| 1518 | (1+ fill-column)) | |
| 1519 | (progn (goto-char fill-point) | |
| 1520 | (fortran-break-line)) | |
| 1521 | (save-excursion | |
| 1522 | (if (> (save-excursion | |
| 1523 | (goto-char fill-point) | |
| 1524 | (current-column)) | |
| 1525 | (+ (calculate-fortran-indent) fortran-continuation-indent)) | |
| 1526 | (progn | |
| 1527 | (goto-char fill-point) | |
| 1528 | (fortran-break-line)))))) | |
| 1529 | )) | |
| 1530 | (defun fortran-break-line () | |
| 1531 | (let ((opoint (point)) | |
| 1532 | (bol (save-excursion (beginning-of-line) (point))) | |
| 1533 | (eol (save-excursion (end-of-line) (point))) | |
| 1534 | (comment-string nil)) | |
| 1535 | ||
| 1536 | (save-excursion | |
| 23029d77 | 1537 | (if (and comment-start-skip (fortran-find-comment-start-skip)) |
| b8cbdf43 RS |
1538 | (progn |
| 1539 | (re-search-backward comment-start-skip bol t) | |
| 1540 | (setq comment-string (buffer-substring (point) eol)) | |
| 1541 | (delete-region (point) eol)))) | |
| 1542 | ;;; Forward line 1 really needs to go to next non white line | |
| 1543 | (if (save-excursion (forward-line 1) | |
| 1544 | (or (looking-at " [^ 0\n]") | |
| 1545 | (looking-at "\t[1-9]"))) | |
| 1546 | (progn | |
| b8313955 RS |
1547 | (end-of-line) |
| 1548 | (delete-region (point) (match-end 0)) | |
| b8cbdf43 | 1549 | (delete-horizontal-space) |
| 4254fe58 | 1550 | (fortran-fill)) |
| b8cbdf43 RS |
1551 | (fortran-split-line)) |
| 1552 | (if comment-string | |
| 1553 | (save-excursion | |
| 1554 | (goto-char bol) | |
| 1555 | (end-of-line) | |
| 1556 | (delete-horizontal-space) | |
| 1557 | (indent-to (fortran-comment-hook)) | |
| 1558 | (insert comment-string))))) | |
| 1559 | ||
| 23029d77 | 1560 | (defun fortran-analyze-file-format () |
| 5a8d870b | 1561 | "Returns nil if fixed format is used, t if TAB formatting is used. |
| 23029d77 JB |
1562 | Use `fortran-tab-mode-default' if no non-comment statements are found in the |
| 1563 | file before the end or the first `fortran-analyze-depth' lines." | |
| 1564 | (let ((i 0)) | |
| 1565 | (save-excursion | |
| 1566 | (goto-char (point-min)) | |
| 1567 | (setq i 0) | |
| 1568 | (while (not (or | |
| 1569 | (eobp) | |
| 1570 | (looking-at "\t") | |
| 1571 | (looking-at " ") | |
| 1572 | (> i fortran-analyze-depth))) | |
| 1573 | (forward-line) | |
| 1574 | (setq i (1+ i))) | |
| 1575 | (cond | |
| 1576 | ((looking-at "\t") t) | |
| 1577 | ((looking-at " ") nil) | |
| 1578 | (fortran-tab-mode-default t) | |
| 1579 | (t nil))))) | |
| 1580 | ||
| 1581 | (or (assq 'fortran-tab-mode-string minor-mode-alist) | |
| 1582 | (setq minor-mode-alist (cons | |
| 1583 | '(fortran-tab-mode-string | |
| 1584 | (indent-tabs-mode fortran-tab-mode-string)) | |
| 1585 | minor-mode-alist))) | |
| 1586 | ||
| 49116ac0 JB |
1587 | (provide 'fortran) |
| 1588 | ||
| 1a06eabd | 1589 | ;;; fortran.el ends here |