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be010748 | 1 | ;;; f90.el --- Fortran-90 mode (free format) |
b578f267 | 2 | |
d2d15846 | 3 | ;; Copyright (C) 1995, 1996, 1997, 2000 Free Software Foundation, Inc. |
034a9d40 | 4 | |
88ea9ddc | 5 | ;; Author: Torbj\"orn Einarsson <Torbjorn.Einarsson@era.ericsson.se> |
b125e643 | 6 | ;; Maintainer: Glenn Morris <gmorris@ast.cam.ac.uk> |
034a9d40 RS |
7 | ;; Keywords: fortran, f90, languages |
8 | ||
b578f267 EN |
9 | ;; This file is part of GNU Emacs. |
10 | ||
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
034a9d40 | 12 | ;; it under the terms of the GNU General Public License as published by |
b578f267 EN |
13 | ;; the Free Software Foundation; either version 2, or (at your option) |
14 | ;; any later version. | |
034a9d40 | 15 | |
b578f267 | 16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
034a9d40 RS |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
b578f267 EN |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | ;; Boston, MA 02111-1307, USA. | |
034a9d40 RS |
25 | |
26 | ;;; Commentary: | |
b578f267 | 27 | |
87ee2359 GM |
28 | ;; Major mode for editing F90 programs in FREE FORMAT. |
29 | ;; The minor language revision F95 is also supported (with font-locking). | |
30 | ||
034a9d40 | 31 | ;; Knows about continuation lines, named structured statements, and other |
87ee2359 GM |
32 | ;; features in F90 including HPF (High Performance Fortran) structures. |
33 | ;; The basic feature provides accurate indentation of F90 programs. | |
034a9d40 RS |
34 | ;; In addition, there are many more features like automatic matching of all |
35 | ;; end statements, an auto-fill function to break long lines, a join-lines | |
87ee2359 GM |
36 | ;; function which joins continued lines, etc. |
37 | ||
38 | ;; To facilitate typing, a fairly complete list of abbreviations is provided. | |
39 | ;; All abbreviations begin with the backquote character "`" | |
40 | ;; (this requires modification of the syntax-table). | |
41 | ;; For example, `i expands to integer (if abbrev-mode is on). | |
034a9d40 | 42 | |
87ee2359 | 43 | ;; There are two separate features for altering the appearance of code: |
034a9d40 | 44 | ;; 1) Upcasing or capitalizing of all keywords. |
87ee2359 GM |
45 | ;; 2) Colors/fonts using font-lock-mode. |
46 | ;; Automatic upcase or downcase of keywords is controlled by the variable | |
47 | ;; f90-auto-keyword-case. | |
034a9d40 RS |
48 | |
49 | ;; The indentations of lines starting with ! is determined by the first of the | |
87ee2359 | 50 | ;; following matches (values in the left column are the defaults): |
ee30478d KH |
51 | |
52 | ;; start-string/regexp indent variable holding start-string/regexp | |
53 | ;; !!! 0 | |
54 | ;; !hpf\\$ (re) 0 f90-directive-comment-re | |
55 | ;; !!$ 0 f90-comment-region | |
56 | ;; ! (re) as code f90-indented-comment-re | |
57 | ;; default comment-column | |
58 | ||
59 | ;; Ex: Here is the result of 3 different settings of f90-indented-comment-re | |
60 | ;; f90-indented-comment-re !-indentation !!-indentation | |
61 | ;; ! as code as code | |
62 | ;; !! comment-column as code | |
63 | ;; ![^!] as code comment-column | |
87ee2359 GM |
64 | ;; Trailing comments are indented to comment-column with indent-for-comment. |
65 | ;; The function f90-comment-region toggles insertion of | |
66 | ;; the variable f90-comment-region in every line of the region. | |
034a9d40 | 67 | |
a729409a | 68 | ;; One common convention for free vs. fixed format is that free format files |
69658465 | 69 | ;; have the ending .f90 or .f95 while fixed format files have the ending .f. |
87ee2359 GM |
70 | ;; Emacs automatically loads Fortran files in the appropriate mode based |
71 | ;; on extension. You can modify this by adjusting the variable auto-mode-alist. | |
72 | ;; For example: | |
73 | ;; (add-to-list 'auto-mode-alist '("\\.f\\'" . f90-mode)) | |
74 | ||
034a9d40 | 75 | ;; Once you have entered f90-mode, you may get more info by using |
69658465 | 76 | ;; the command describe-mode (C-h m). For online help use |
87ee2359 GM |
77 | ;; C-h f <Name of function you want described>, or |
78 | ;; C-h v <Name of variable you want described>. | |
034a9d40 | 79 | |
87ee2359 GM |
80 | ;; To customize f90-mode for your taste, use, for example: |
81 | ;; (you don't have to specify values for all the parameters below) | |
82 | ;; | |
d2d15846 | 83 | ;;(add-hook 'f90-mode-hook |
87ee2359 | 84 | ;; ;; These are the default values. |
034a9d40 RS |
85 | ;; '(lambda () (setq f90-do-indent 3 |
86 | ;; f90-if-indent 3 | |
87 | ;; f90-type-indent 3 | |
88 | ;; f90-program-indent 2 | |
89 | ;; f90-continuation-indent 5 | |
90 | ;; f90-comment-region "!!$" | |
ee30478d KH |
91 | ;; f90-directive-comment-re "!hpf\\$" |
92 | ;; f90-indented-comment-re "!" | |
87ee2359 | 93 | ;; f90-break-delimiters "[-+\\*/><=,% \t]" |
034a9d40 RS |
94 | ;; f90-break-before-delimiters t |
95 | ;; f90-beginning-ampersand t | |
96 | ;; f90-smart-end 'blink | |
97 | ;; f90-auto-keyword-case nil | |
87ee2359 | 98 | ;; f90-leave-line-no nil |
72e80cad | 99 | ;; indent-tabs-mode nil |
b974df0a | 100 | ;; f90-font-lock-keywords f90-font-lock-keywords-2 |
72e80cad | 101 | ;; ) |
87ee2359 | 102 | ;; ;; These are not default. |
034a9d40 | 103 | ;; (abbrev-mode 1) ; turn on abbreviation mode |
b974df0a | 104 | ;; (f90-add-imenu-menu) ; extra menu with functions etc. |
034a9d40 RS |
105 | ;; (if f90-auto-keyword-case ; change case of all keywords on startup |
106 | ;; (f90-change-keywords f90-auto-keyword-case)) | |
107 | ;; )) | |
87ee2359 GM |
108 | ;; |
109 | ;; in your .emacs file. You can also customize the lists | |
110 | ;; f90-font-lock-keywords, etc. | |
111 | ;; | |
112 | ;; The auto-fill and abbreviation minor modes are accessible from the F90 menu, | |
b974df0a | 113 | ;; or by using M-x auto-fill-mode and M-x abbrev-mode, respectively. |
034a9d40 RS |
114 | |
115 | ;; Remarks | |
116 | ;; 1) Line numbers are by default left-justified. If f90-leave-line-no is | |
117 | ;; non-nil, the line numbers are never touched. | |
87ee2359 | 118 | ;; 2) Multi-; statements like "do i=1,20 ; j=j+i ; end do" are not handled |
034a9d40 | 119 | ;; correctly, but I imagine them to be rare. |
ee30478d | 120 | ;; 3) Regexps for hilit19 are no longer supported. |
87ee2359 | 121 | ;; 4) For FIXED FORMAT code, use fortran mode. |
034a9d40 | 122 | ;; 5) This mode does not work under emacs-18.x. |
72e80cad KH |
123 | ;; 6) Preprocessor directives, i.e., lines starting with # are left-justified |
124 | ;; and are untouched by all case-changing commands. There is, at present, no | |
125 | ;; mechanism for treating multi-line directives (continued by \ ). | |
ee30478d KH |
126 | ;; 7) f77 do-loops do 10 i=.. ; ; 10 continue are not correctly indented. |
127 | ;; You are urged to use f90-do loops (with labels if you wish). | |
c80718cc | 128 | ;; 8) The highlighting mode under XEmacs is not as complete as under Emacs. |
034a9d40 RS |
129 | |
130 | ;; List of user commands | |
131 | ;; f90-previous-statement f90-next-statement | |
132 | ;; f90-beginning-of-subprogram f90-end-of-subprogram f90-mark-subprogram | |
133 | ;; f90-comment-region | |
134 | ;; f90-indent-line f90-indent-new-line | |
135 | ;; f90-indent-region (can be called by calling indent-region) | |
136 | ;; f90-indent-subprogram | |
137 | ;; f90-break-line f90-join-lines | |
034a9d40 RS |
138 | ;; f90-fill-region |
139 | ;; f90-insert-end | |
140 | ;; f90-upcase-keywords f90-upcase-region-keywords | |
141 | ;; f90-downcase-keywords f90-downcase-region-keywords | |
142 | ;; f90-capitalize-keywords f90-capitalize-region-keywords | |
b974df0a EN |
143 | ;; f90-add-imenu-menu |
144 | ;; f90-font-lock-1, f90-font-lock-2, f90-font-lock-3, f90-font-lock-4 | |
034a9d40 | 145 | |
87ee2359 | 146 | ;; Original author's thanks |
034a9d40 RS |
147 | ;; Thanks to all the people who have tested the mode. Special thanks to Jens |
148 | ;; Bloch Helmers for encouraging me to write this code, for creative | |
149 | ;; suggestions as well as for the lists of hpf-commands. | |
150 | ;; Also thanks to the authors of the fortran and pascal modes, on which some | |
151 | ;; of this code is built. | |
152 | ||
a729409a GM |
153 | ;;; Code: |
154 | ||
87ee2359 GM |
155 | ;; TODO |
156 | ;; Support for hideshow, align. | |
157 | ;; OpenMP, preprocessor highlighting. | |
158 | ||
34ba7e3d GM |
159 | (defvar comment-auto-fill-only-comments) |
160 | (defvar font-lock-keywords) | |
0ee7f068 | 161 | |
034a9d40 | 162 | ;; User options |
034a9d40 | 163 | |
fcad5199 | 164 | (defgroup f90 nil |
a729409a | 165 | "Major mode for editing free format Fortran 90,95 code." |
d2d15846 | 166 | :group 'languages) |
034a9d40 | 167 | |
fcad5199 | 168 | (defgroup f90-indent nil |
a729409a | 169 | "Indentation in free format Fortran." |
fcad5199 | 170 | :prefix "f90-" |
a729409a | 171 | :group 'f90) |
034a9d40 | 172 | |
034a9d40 | 173 | |
fcad5199 RS |
174 | (defcustom f90-do-indent 3 |
175 | "*Extra indentation applied to DO blocks." | |
a729409a | 176 | :type 'integer |
fcad5199 | 177 | :group 'f90-indent) |
034a9d40 | 178 | |
fcad5199 RS |
179 | (defcustom f90-if-indent 3 |
180 | "*Extra indentation applied to IF, SELECT CASE, WHERE and FORALL blocks." | |
a729409a | 181 | :type 'integer |
fcad5199 | 182 | :group 'f90-indent) |
034a9d40 | 183 | |
fcad5199 RS |
184 | (defcustom f90-type-indent 3 |
185 | "*Extra indentation applied to TYPE, INTERFACE and BLOCK DATA blocks." | |
a729409a | 186 | :type 'integer |
fcad5199 | 187 | :group 'f90-indent) |
034a9d40 | 188 | |
fcad5199 | 189 | (defcustom f90-program-indent 2 |
a729409a GM |
190 | "*Extra indentation applied to PROGRAM, MODULE, SUBROUTINE, FUNCTION blocks." |
191 | :type 'integer | |
fcad5199 | 192 | :group 'f90-indent) |
034a9d40 | 193 | |
fcad5199 | 194 | (defcustom f90-continuation-indent 5 |
a729409a GM |
195 | "*Extra indentation applied to continuation lines." |
196 | :type 'integer | |
fcad5199 | 197 | :group 'f90-indent) |
034a9d40 | 198 | |
fcad5199 | 199 | (defcustom f90-comment-region "!!$" |
87ee2359 | 200 | "*String inserted by \\[f90-comment-region] at start of each line in region." |
a729409a | 201 | :type 'string |
fcad5199 RS |
202 | :group 'f90-indent) |
203 | ||
204 | (defcustom f90-indented-comment-re "!" | |
a729409a GM |
205 | "*Regexp matching comments to indent as code." |
206 | :type 'regexp | |
fcad5199 RS |
207 | :group 'f90-indent) |
208 | ||
209 | (defcustom f90-directive-comment-re "!hpf\\$" | |
210 | "*Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented." | |
a729409a | 211 | :type 'regexp |
fcad5199 RS |
212 | :group 'f90-indent) |
213 | ||
214 | (defcustom f90-beginning-ampersand t | |
87ee2359 | 215 | "*Non-nil gives automatic insertion of \& at start of continuation line." |
a729409a | 216 | :type 'boolean |
fcad5199 RS |
217 | :group 'f90) |
218 | ||
219 | (defcustom f90-smart-end 'blink | |
034a9d40 RS |
220 | "*From an END statement, check and fill the end using matching block start. |
221 | Allowed values are 'blink, 'no-blink, and nil, which determine | |
fcad5199 | 222 | whether to blink the matching beginning." |
a729409a | 223 | :type '(choice (const blink) (const no-blink) (const nil)) |
fcad5199 | 224 | :group 'f90) |
034a9d40 | 225 | |
fcad5199 RS |
226 | (defcustom f90-break-delimiters "[-+\\*/><=,% \t]" |
227 | "*Regexp holding list of delimiters at which lines may be broken." | |
a729409a | 228 | :type 'regexp |
fcad5199 | 229 | :group 'f90) |
034a9d40 | 230 | |
fcad5199 RS |
231 | (defcustom f90-break-before-delimiters t |
232 | "*Non-nil causes `f90-do-auto-fill' to break lines before delimiters." | |
a729409a | 233 | :type 'boolean |
fcad5199 | 234 | :group 'f90) |
034a9d40 | 235 | |
fcad5199 | 236 | (defcustom f90-auto-keyword-case nil |
034a9d40 | 237 | "*Automatic case conversion of keywords. |
87ee2359 | 238 | The options are 'downcase-word, 'upcase-word, 'capitalize-word and nil." |
a729409a GM |
239 | :type '(choice (const downcase-word) (const upcase-word) |
240 | (const capitalize-word) (const nil)) | |
fcad5199 RS |
241 | :group 'f90) |
242 | ||
243 | (defcustom f90-leave-line-no nil | |
87ee2359 | 244 | "*If non-nil, line numbers are not left justified." |
a729409a | 245 | :type 'boolean |
fcad5199 RS |
246 | :group 'f90) |
247 | ||
0ee7f068 GM |
248 | (defcustom f90-mode-hook nil |
249 | "Hook run when entering F90 mode." | |
a729409a | 250 | :type 'hook |
0ee7f068 | 251 | :options '(f90-add-imenu-menu) |
a729409a | 252 | :group 'f90) |
0ee7f068 GM |
253 | |
254 | ;; User options end here. | |
1bb3ae5c | 255 | |
ee30478d | 256 | (defconst f90-keywords-re |
84021009 SM |
257 | (regexp-opt '("allocatable" "allocate" "assign" "assignment" "backspace" |
258 | "block" "call" "case" "character" "close" "common" "complex" | |
259 | "contains" "continue" "cycle" "data" "deallocate" | |
260 | "dimension" "do" "double" "else" "elseif" "elsewhere" "end" | |
261 | "enddo" "endfile" "endif" "entry" "equivalence" "exit" | |
262 | "external" "forall" "format" "function" "goto" "if" | |
263 | "implicit" "include" "inquire" "integer" "intent" | |
264 | "interface" "intrinsic" "logical" "module" "namelist" "none" | |
265 | "nullify" "only" "open" "operator" "optional" "parameter" | |
266 | "pause" "pointer" "precision" "print" "private" "procedure" | |
267 | "program" "public" "read" "real" "recursive" "result" "return" | |
268 | "rewind" "save" "select" "sequence" "stop" "subroutine" | |
269 | "target" "then" "type" "use" "where" "while" "write" | |
270 | ;; F95 keywords. | |
271 | "elemental" "pure") 'words) | |
ee30478d KH |
272 | "Regexp for F90 keywords.") |
273 | ||
274 | (defconst f90-keywords-level-3-re | |
84021009 SM |
275 | (regexp-opt |
276 | '("allocatable" "allocate" "assign" "assignment" "backspace" | |
277 | "close" "deallocate" "dimension" "endfile" "entry" "equivalence" | |
278 | "external" "inquire" "intent" "intrinsic" "nullify" "only" "open" | |
279 | "operator" "optional" "parameter" "pause" "pointer" "print" "private" | |
280 | "public" "read" "recursive" "result" "rewind" "save" "select" | |
281 | "sequence" "target" "write" | |
282 | ;; F95 keywords. | |
283 | "elemental" "pure") 'words) | |
284 | "Keyword-regexp for font-lock level >= 3.") | |
ee30478d | 285 | |
ee30478d | 286 | (defconst f90-procedures-re |
84021009 | 287 | (concat "\\<" |
69658465 GM |
288 | (regexp-opt |
289 | '("abs" "achar" "acos" "adjustl" "adjustr" "aimag" "aint" | |
290 | "all" "allocated" "anint" "any" "asin" "associated" | |
291 | "atan" "atan2" "bit_size" "btest" "ceiling" "char" "cmplx" | |
292 | "conjg" "cos" "cosh" "count" "cshift" "date_and_time" "dble" | |
293 | "digits" "dim" "dot_product" "dprod" "eoshift" "epsilon" | |
294 | "exp" "exponent" "floor" "fraction" "huge" "iachar" "iand" | |
295 | "ibclr" "ibits" "ibset" "ichar" "ieor" "index" "int" "ior" | |
296 | "ishft" "ishftc" "kind" "lbound" "len" "len_trim" "lge" "lgt" | |
297 | "lle" "llt" "log" "log10" "logical" "matmul" "max" | |
298 | "maxexponent" "maxloc" "maxval" "merge" "min" "minexponent" | |
299 | "minloc" "minval" "mod" "modulo" "mvbits" "nearest" "nint" | |
300 | "not" "pack" "precision" "present" "product" "radix" | |
301 | ;; Real is taken out here to avoid highlighting declarations. | |
302 | "random_number" "random_seed" "range" ;; "real" | |
303 | "repeat" "reshape" "rrspacing" "scale" "scan" | |
304 | "selected_int_kind" "selected_real_kind" "set_exponent" | |
305 | "shape" "sign" "sin" "sinh" "size" "spacing" "spread" "sqrt" | |
306 | "sum" "system_clock" "tan" "tanh" "tiny" "transfer" | |
307 | "transpose" "trim" "ubound" "unpack" "verify" | |
308 | ;; F95 intrinsic functions. | |
309 | "null" "cpu_time") t) | |
310 | ;; A left parenthesis to avoid highlighting non-procedures. | |
311 | "[ \t]*(") | |
ee30478d KH |
312 | "Regexp whose first part matches F90 intrinsic procedures.") |
313 | ||
314 | (defconst f90-operators-re | |
69658465 GM |
315 | (concat "\\." |
316 | (regexp-opt '("and" "eq" "eqv" "false" "ge" "gt" "le" "lt" "ne" | |
317 | "neqv" "not" "or" "true") t) | |
318 | "\\.") | |
ee30478d KH |
319 | "Regexp matching intrinsic operators.") |
320 | ||
321 | (defconst f90-hpf-keywords-re | |
84021009 | 322 | (regexp-opt |
ec2f376f | 323 | ;; Intrinsic procedures. |
84021009 SM |
324 | '("all_prefix" "all_scatter" "all_suffix" "any_prefix" |
325 | "any_scatter" "any_suffix" "copy_prefix" "copy_scatter" | |
326 | "copy_suffix" "count_prefix" "count_scatter" "count_suffix" | |
327 | "grade_down" "grade_up" | |
328 | "hpf_alignment" "hpf_distribution" "hpf_template" "iall" "iall_prefix" | |
329 | "iall_scatter" "iall_suffix" "iany" "iany_prefix" "iany_scatter" | |
330 | "iany_suffix" "ilen" "iparity" "iparity_prefix" | |
331 | "iparity_scatter" "iparity_suffix" "leadz" "maxval_prefix" | |
332 | "maxval_scatter" "maxval_suffix" "minval_prefix" "minval_scatter" | |
333 | "minval_suffix" "number_of_processors" "parity" | |
334 | "parity_prefix" "parity_scatter" "parity_suffix" "popcnt" "poppar" | |
335 | "processors_shape" "product_prefix" "product_scatter" | |
336 | "product_suffix" "sum_prefix" "sum_scatter" "sum_suffix" | |
ec2f376f | 337 | ;; Directives. |
84021009 | 338 | "align" "distribute" "dynamic" "independent" "inherit" "processors" |
69658465 | 339 | "realign" "redistribute" "template" |
ec2f376f | 340 | ;; Keywords. |
84021009 | 341 | "block" "cyclic" "extrinsic" "new" "onto" "pure" "with") 'words) |
ee30478d | 342 | "Regexp for all HPF keywords, procedures and directives.") |
034a9d40 | 343 | |
ec2f376f | 344 | ;; Highlighting patterns. |
034a9d40 | 345 | |
ee30478d | 346 | (defvar f90-font-lock-keywords-1 |
45d1e4d4 | 347 | (list |
ec2f376f | 348 | ;; Special highlighting of "module procedure". |
84021009 | 349 | '("\\<\\(module[ \t]*procedure\\)\\>" (1 font-lock-keyword-face)) |
eb9f0295 GM |
350 | ;; Highlight definition of derived type. |
351 | '("\\<\\(\\(?:end[ \t]*\\)?type\\)\\>\\([^()\n]*::\\)?[ \t]*\\(\\sw+\\)" | |
6fb453e1 | 352 | (1 font-lock-keyword-face) (3 font-lock-function-name-face)) |
84021009 | 353 | ;; Other functions and declarations. |
69658465 | 354 | '("\\<\\(\\(?:end[ \t]*\\)?\\(program\\|module\\|function\\|\ |
6fb453e1 | 355 | subroutine\\)\\|use\\|call\\)\\>[ \t]*\\(\\sw+\\)?" |
84021009 | 356 | (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t)) |
b974df0a | 357 | "\\<\\(\\(end[ \t]*\\)?\\(interface\\|block[ \t]*data\\)\\|contains\\)\\>") |
ee30478d KH |
358 | "This does fairly subdued highlighting of comments and function calls.") |
359 | ||
360 | (defvar f90-font-lock-keywords-2 | |
69658465 GM |
361 | (append |
362 | f90-font-lock-keywords-1 | |
363 | (list | |
ec2f376f | 364 | ;; Variable declarations (avoid the real function call). |
69658465 | 365 | '("^[ \t0-9]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|\ |
7aee8047 GM |
366 | logical\\|type[ \t]*(\\sw+)\\)\\(.*::\\|[ \t]*(.*)\\)?\\([^&!\n]*\\)" |
367 | (1 font-lock-type-face t) (4 font-lock-variable-name-face t)) | |
ec2f376f | 368 | ;; do, if, select, where, and forall constructs. |
69658465 GM |
369 | '("\\<\\(end[ \t]*\\(do\\|if\\|select\\|forall\\|where\\)\\)\\>\ |
370 | \\([ \t]+\\(\\sw+\\)\\)?" | |
371 | (1 font-lock-keyword-face) (3 font-lock-constant-face nil t)) | |
372 | '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)?\\(\\(if\\|\ | |
373 | do\\([ \t]*while\\)?\\|select[ \t]*case\\|where\\|forall\\)\\)\\>" | |
374 | (2 font-lock-constant-face nil t) (3 font-lock-keyword-face)) | |
ec2f376f | 375 | ;; Implicit declaration. |
69658465 | 376 | '("\\<\\(implicit\\)[ \t]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\ |
6fb453e1 | 377 | \\|logical\\|type[ \t]*(\\sw+)\\|none\\)[ \t]*" |
69658465 GM |
378 | (1 font-lock-keyword-face) (2 font-lock-type-face)) |
379 | '("\\<\\(namelist\\|common\\)[ \t]*\/\\(\\sw+\\)?\/" | |
380 | (1 font-lock-keyword-face) (2 font-lock-constant-face nil t)) | |
381 | "\\<else\\([ \t]*if\\|where\\)?\\>" | |
7aee8047 | 382 | '("\\(&\\)[ \t]*\\(!\\|$\\)" (1 font-lock-keyword-face)) |
69658465 GM |
383 | "\\<\\(then\\|continue\\|format\\|include\\|stop\\|return\\)\\>" |
384 | '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)?\\>" | |
385 | (1 font-lock-keyword-face) (2 font-lock-constant-face nil t)) | |
386 | '("\\<\\(case\\)[ \t]*\\(default\\|(\\)" . 1) | |
387 | '("\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)" | |
388 | (1 font-lock-keyword-face) (2 font-lock-constant-face)) | |
f14ca250 | 389 | ;; Line numbers (lines whose first character after number is letter). |
69658465 | 390 | '("^[ \t]*\\([0-9]+\\)[ \t]*[a-z]+" (1 font-lock-constant-face t)))) |
87ee2359 | 391 | "Highlights declarations, do-loops and other constructs.") |
ee30478d KH |
392 | |
393 | (defvar f90-font-lock-keywords-3 | |
394 | (append f90-font-lock-keywords-2 | |
69658465 GM |
395 | (list |
396 | f90-keywords-level-3-re | |
397 | f90-operators-re | |
398 | (list f90-procedures-re '(1 font-lock-keyword-face keep)) | |
ec2f376f | 399 | "\\<real\\>" ; avoid overwriting real defs |
69658465 | 400 | )) |
ee30478d KH |
401 | "Highlights all F90 keywords and intrinsic procedures.") |
402 | ||
403 | (defvar f90-font-lock-keywords-4 | |
404 | (append f90-font-lock-keywords-3 | |
69658465 | 405 | (list f90-hpf-keywords-re)) |
ee30478d KH |
406 | "Highlights all F90 and HPF keywords.") |
407 | ||
408 | (defvar f90-font-lock-keywords | |
87ee2359 | 409 | f90-font-lock-keywords-2 |
0ee7f068 GM |
410 | "*Default expressions to highlight in F90 mode. |
411 | Can be overridden by the value of `font-lock-maximum-decoration'.") | |
034a9d40 | 412 | |
ec2f376f | 413 | |
70186f7f GM |
414 | (defvar f90-mode-syntax-table |
415 | (let ((table (make-syntax-table))) | |
416 | (modify-syntax-entry ?\! "<" table) ; begin comment | |
417 | (modify-syntax-entry ?\n ">" table) ; end comment | |
418 | (modify-syntax-entry ?_ "w" table) ; underscore in names | |
419 | (modify-syntax-entry ?\' "\"" table) ; string quote | |
420 | (modify-syntax-entry ?\" "\"" table) ; string quote | |
421 | (modify-syntax-entry ?\` "w" table) ; for abbrevs | |
422 | (modify-syntax-entry ?\r " " table) ; return is whitespace | |
423 | (modify-syntax-entry ?+ "." table) ; punctuation | |
424 | (modify-syntax-entry ?- "." table) | |
425 | (modify-syntax-entry ?= "." table) | |
426 | (modify-syntax-entry ?* "." table) | |
427 | (modify-syntax-entry ?/ "." table) | |
428 | (modify-syntax-entry ?\\ "\\" table) ; escape chars | |
429 | table) | |
430 | "Syntax table used in F90 mode.") | |
431 | ||
432 | (defvar f90-mode-map | |
433 | (let ((map (make-sparse-keymap))) | |
434 | (define-key map "`" 'f90-abbrev-start) | |
435 | (define-key map "\C-c;" 'f90-comment-region) | |
436 | (define-key map "\C-\M-a" 'f90-beginning-of-subprogram) | |
437 | (define-key map "\C-\M-e" 'f90-end-of-subprogram) | |
438 | (define-key map "\C-\M-h" 'f90-mark-subprogram) | |
6f1d50da GM |
439 | (define-key map "\C-\M-n" 'f90-end-of-block) |
440 | (define-key map "\C-\M-p" 'f90-beginning-of-block) | |
70186f7f GM |
441 | (define-key map "\C-\M-q" 'f90-indent-subprogram) |
442 | (define-key map "\C-j" 'f90-indent-new-line) ; LFD equals C-j | |
443 | (define-key map "\r" 'newline) | |
444 | (define-key map "\C-c\r" 'f90-break-line) | |
445 | ;;; (define-key map [M-return] 'f90-break-line) | |
76bccf35 GM |
446 | (define-key map "\C-c\C-a" 'f90-previous-block) |
447 | (define-key map "\C-c\C-e" 'f90-next-block) | |
70186f7f GM |
448 | (define-key map "\C-c\C-d" 'f90-join-lines) |
449 | (define-key map "\C-c\C-f" 'f90-fill-region) | |
450 | (define-key map "\C-c\C-p" 'f90-previous-statement) | |
451 | (define-key map "\C-c\C-n" 'f90-next-statement) | |
452 | (define-key map "\C-c\C-w" 'f90-insert-end) | |
453 | (define-key map "\t" 'f90-indent-line) | |
454 | (define-key map "," 'f90-electric-insert) | |
455 | (define-key map "+" 'f90-electric-insert) | |
456 | (define-key map "-" 'f90-electric-insert) | |
457 | (define-key map "*" 'f90-electric-insert) | |
458 | (define-key map "/" 'f90-electric-insert) | |
a729409a GM |
459 | |
460 | (easy-menu-define f90-menu map "Menu for F90 mode." | |
461 | `("F90" | |
462 | ("Customization" | |
463 | ,(custom-menu-create 'f90) | |
464 | ["Set" Custom-set t] | |
465 | ["Save" Custom-save t] | |
466 | ["Reset to Current" Custom-reset-current t] | |
467 | ["Reset to Saved" Custom-reset-saved t] | |
468 | ["Reset to Standard Settings" Custom-reset-standard t] | |
469 | ) | |
470 | "--" | |
471 | ["Indent Subprogram" f90-indent-subprogram t] | |
472 | ["Mark Subprogram" f90-mark-subprogram t] | |
473 | ["Beginning of Subprogram" f90-beginning-of-subprogram t] | |
474 | ["End of Subprogram" f90-end-of-subprogram t] | |
475 | "--" | |
476 | ["(Un)Comment Region" f90-comment-region mark-active] | |
477 | ["Indent Region" f90-indent-region mark-active] | |
478 | ["Fill Region" f90-fill-region mark-active] | |
479 | "--" | |
480 | ["Break Line at Point" f90-break-line t] | |
481 | ["Join with Previous Line" f90-join-lines t] | |
482 | ["Insert Block End" f90-insert-end t] | |
483 | "--" | |
484 | ("Highlighting" | |
485 | ["Toggle font-lock-mode" font-lock-mode :selected font-lock-mode | |
486 | :style toggle] | |
487 | "--" | |
488 | ["Light highlighting (level 1)" f90-font-lock-1 t] | |
489 | ["Moderate highlighting (level 2)" f90-font-lock-2 t] | |
490 | ["Heavy highlighting (level 3)" f90-font-lock-3 t] | |
491 | ["Maximum highlighting (level 4)" f90-font-lock-4 t] | |
492 | ) | |
493 | ("Change Keyword Case" | |
494 | ["Upcase Keywords (buffer)" f90-upcase-keywords t] | |
495 | ["Capitalize Keywords (buffer)" f90-capitalize-keywords t] | |
496 | ["Downcase Keywords (buffer)" f90-downcase-keywords t] | |
497 | "--" | |
498 | ["Upcase Keywords (region)" f90-upcase-region-keywords | |
499 | mark-active] | |
500 | ["Capitalize Keywords (region)" f90-capitalize-region-keywords | |
501 | mark-active] | |
502 | ["Downcase Keywords (region)" f90-downcase-region-keywords | |
503 | mark-active] | |
504 | ) | |
505 | "--" | |
506 | ["Toggle auto-fill" auto-fill-mode :selected auto-fill-function | |
507 | :style toggle] | |
508 | ["Toggle abbrev-mode" abbrev-mode :selected abbrev-mode | |
509 | :style toggle] | |
510 | ["Add imenu Menu" f90-add-imenu-menu | |
511 | :active (not (lookup-key (current-local-map) [menu-bar index])) | |
512 | :included (fboundp 'imenu-add-to-menubar)])) | |
70186f7f | 513 | map) |
034a9d40 | 514 | "Keymap used in F90 mode.") |
ee30478d | 515 | |
b974df0a | 516 | |
1a341882 GM |
517 | (defun f90-font-lock-1 () |
518 | "Set `font-lock-keywords' to `f90-font-lock-keywords-1'." | |
519 | (interactive) | |
520 | (font-lock-mode 1) | |
521 | (setq font-lock-keywords f90-font-lock-keywords-1) | |
522 | (font-lock-fontify-buffer)) | |
523 | ||
524 | (defun f90-font-lock-2 () | |
525 | "Set `font-lock-keywords' to `f90-font-lock-keywords-2'." | |
526 | (interactive) | |
527 | (font-lock-mode 1) | |
528 | (setq font-lock-keywords f90-font-lock-keywords-2) | |
529 | (font-lock-fontify-buffer)) | |
530 | ||
531 | (defun f90-font-lock-3 () | |
532 | "Set `font-lock-keywords' to `f90-font-lock-keywords-3'." | |
533 | (interactive) | |
534 | (font-lock-mode 1) | |
535 | (setq font-lock-keywords f90-font-lock-keywords-3) | |
536 | (font-lock-fontify-buffer)) | |
537 | ||
538 | (defun f90-font-lock-4 () | |
539 | "Set `font-lock-keywords' to `f90-font-lock-keywords-4'." | |
540 | (interactive) | |
541 | (font-lock-mode 1) | |
542 | (setq font-lock-keywords f90-font-lock-keywords-4) | |
543 | (font-lock-fontify-buffer)) | |
544 | ||
545 | \f | |
ee30478d | 546 | ;; Regexps for finding program structures. |
69658465 | 547 | (defconst f90-blocks-re |
ec2f376f GM |
548 | (concat "\\(block[ \t]*data\\|" |
549 | (regexp-opt '("do" "if" "interface" "function" "module" "program" | |
550 | "select" "subroutine" "type" "where" "forall")) | |
551 | "\\)\\>") | |
552 | "Regexp potentially indicating a \"block\" of F90 code.") | |
553 | ||
69658465 | 554 | (defconst f90-program-block-re |
ec2f376f GM |
555 | (regexp-opt '("program" "module" "subroutine" "function") 'paren) |
556 | "Regexp used to locate the start/end of a \"subprogram\".") | |
557 | ||
69658465 | 558 | (defconst f90-else-like-re |
ec2f376f GM |
559 | "\\(else\\([ \t]*if\\|where\\)?\\|case[ \t]*\\(default\\|(\\)\\)" |
560 | "Regexp matching an ELSE IF, ELSEWHERE, CASE statement.") | |
561 | ||
69658465 | 562 | (defconst f90-end-if-re |
ec2f376f GM |
563 | (concat "end[ \t]*" |
564 | (regexp-opt '("if" "select" "where" "forall") 'paren) | |
565 | "\\>") | |
566 | "Regexp matching the end of an IF, SELECT, WHERE, FORALL block.") | |
567 | ||
69658465 | 568 | (defconst f90-end-type-re |
ec2f376f GM |
569 | "end[ \t]*\\(type\\|interface\\|block[ \t]*data\\)\\>" |
570 | "Regexp matching the end of a TYPE, INTERFACE, BLOCK DATA section.") | |
571 | ||
ee30478d | 572 | (defconst f90-type-def-re |
eb9f0295 | 573 | "\\<\\(type\\)\\>\\(?:[^()\n]*::\\)?[ \t]*\\(\\sw+\\)" |
e7272ece | 574 | "Regexp matching the definition of a derived type.") |
ec2f376f GM |
575 | |
576 | (defconst f90-no-break-re | |
577 | (regexp-opt '("**" "//" "=>") 'paren) | |
578 | "Regexp specifying where not to break lines when filling.") | |
579 | ||
580 | (defvar f90-cache-position nil | |
581 | "Temporary position used to speed up region operations.") | |
034a9d40 | 582 | (make-variable-buffer-local 'f90-cache-position) |
ec2f376f | 583 | |
b974df0a | 584 | \f |
ec2f376f | 585 | ;; Imenu support. |
ee30478d | 586 | (defvar f90-imenu-generic-expression |
b974df0a EN |
587 | (let ((good-char "[^!\"\&\n \t]") (not-e "[^e!\n\"\& \t]") |
588 | (not-n "[^n!\n\"\& \t]") (not-d "[^d!\n\"\& \t]")) | |
589 | (list | |
590 | '(nil "^[ \t0-9]*program[ \t]+\\(\\sw+\\)" 1) | |
591 | '("Modules" "^[ \t0-9]*module[ \t]+\\(\\sw+\\)[ \t]*\\(!\\|$\\)" 1) | |
592 | '("Types" "^[ \t0-9]*type[ \t]+\\(\\sw+\\)" 1) | |
593 | (list | |
69658465 | 594 | "Procedures" |
b974df0a EN |
595 | (concat |
596 | "^[ \t0-9]*" | |
597 | "\\(" | |
ec2f376f GM |
598 | ;; At least three non-space characters before function/subroutine. |
599 | ;; Check that the last three non-space characters do not spell E N D. | |
b974df0a EN |
600 | "[^!\"\&\n]*\\(" |
601 | not-e good-char good-char "\\|" | |
602 | good-char not-n good-char "\\|" | |
603 | good-char good-char not-d "\\)" | |
604 | "\\|" | |
ec2f376f | 605 | ;; Less than three non-space characters before function/subroutine. |
b974df0a EN |
606 | good-char "?" good-char "?" |
607 | "\\)" | |
608 | "[ \t]*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)") | |
69658465 | 609 | 4))) |
a729409a | 610 | "Value for `imenu-generic-expression' in F90 mode.") |
ee30478d | 611 | |
b974df0a | 612 | (defun f90-add-imenu-menu () |
b974df0a | 613 | "Add an imenu menu to the menubar." |
87ee2359 | 614 | (interactive) |
34ba7e3d | 615 | (if (lookup-key (current-local-map) [menu-bar index]) |
5c2a80ad GM |
616 | (message "%s" "F90-imenu already exists.") |
617 | (imenu-add-to-menubar "F90-imenu") | |
901e8d1d | 618 | (redraw-frame (selected-frame)))) |
b974df0a | 619 | |
034a9d40 | 620 | \f |
ec2f376f | 621 | ;; Abbrevs have generally two letters, except standard types `c, `i, `r, `t. |
4f9fc702 GM |
622 | (defvar f90-mode-abbrev-table |
623 | (let (abbrevs-changed) | |
0ee7f068 GM |
624 | (define-abbrev-table 'f90-mode-abbrev-table nil) |
625 | ;; Use the 6th arg (SYSTEM-FLAG) of define-abbrev if possible. | |
626 | ;; A little baroque to quieten the byte-compiler. | |
627 | (mapcar | |
628 | (function (lambda (element) | |
629 | (condition-case nil | |
630 | (apply 'define-abbrev f90-mode-abbrev-table | |
631 | (append element '(nil 0 t))) | |
632 | (wrong-number-of-arguments | |
633 | (apply 'define-abbrev f90-mode-abbrev-table | |
634 | (append element '(nil 0))))))) | |
635 | '(("`al" "allocate" ) | |
636 | ("`ab" "allocatable" ) | |
637 | ("`as" "assignment" ) | |
638 | ("`ba" "backspace" ) | |
639 | ("`bd" "block data" ) | |
640 | ("`c" "character" ) | |
641 | ("`cl" "close" ) | |
642 | ("`cm" "common" ) | |
643 | ("`cx" "complex" ) | |
644 | ("`cn" "contains" ) | |
645 | ("`cy" "cycle" ) | |
646 | ("`de" "deallocate" ) | |
647 | ("`df" "define" ) | |
648 | ("`di" "dimension" ) | |
649 | ("`dw" "do while" ) | |
650 | ("`el" "else" ) | |
651 | ("`eli" "else if" ) | |
652 | ("`elw" "elsewhere" ) | |
653 | ("`eq" "equivalence" ) | |
654 | ("`ex" "external" ) | |
655 | ("`ey" "entry" ) | |
656 | ("`fl" "forall" ) | |
657 | ("`fo" "format" ) | |
658 | ("`fu" "function" ) | |
659 | ("`fa" ".false." ) | |
660 | ("`im" "implicit none") | |
661 | ("`in" "include" ) | |
662 | ("`i" "integer" ) | |
663 | ("`it" "intent" ) | |
664 | ("`if" "interface" ) | |
665 | ("`lo" "logical" ) | |
666 | ("`mo" "module" ) | |
667 | ("`na" "namelist" ) | |
668 | ("`nu" "nullify" ) | |
669 | ("`op" "optional" ) | |
670 | ("`pa" "parameter" ) | |
671 | ("`po" "pointer" ) | |
672 | ("`pr" "print" ) | |
673 | ("`pi" "private" ) | |
674 | ("`pm" "program" ) | |
675 | ("`pu" "public" ) | |
676 | ("`r" "real" ) | |
677 | ("`rc" "recursive" ) | |
678 | ("`rt" "return" ) | |
679 | ("`rw" "rewind" ) | |
680 | ("`se" "select" ) | |
681 | ("`sq" "sequence" ) | |
682 | ("`su" "subroutine" ) | |
683 | ("`ta" "target" ) | |
684 | ("`tr" ".true." ) | |
685 | ("`t" "type" ) | |
686 | ("`wh" "where" ) | |
687 | ("`wr" "write" ))) | |
4f9fc702 GM |
688 | f90-mode-abbrev-table) |
689 | "Abbrev table for F90 mode.") | |
034a9d40 | 690 | \f |
d2d15846 | 691 | |
034a9d40 RS |
692 | ;;;###autoload |
693 | (defun f90-mode () | |
87ee2359 | 694 | "Major mode for editing Fortran 90,95 code in free format. |
a729409a | 695 | For fixed format code, use `fortran-mode'. |
034a9d40 | 696 | |
a729409a | 697 | \\[f90-indent-line] indents the current line. |
ec2f376f | 698 | \\[f90-indent-new-line] indents current line and creates a new\ |
034a9d40 | 699 | indented line. |
87ee2359 | 700 | \\[f90-indent-subprogram] indents the current subprogram. |
034a9d40 RS |
701 | |
702 | Type `? or `\\[help-command] to display a list of built-in\ | |
703 | abbrevs for F90 keywords. | |
704 | ||
705 | Key definitions: | |
706 | \\{f90-mode-map} | |
707 | ||
708 | Variables controlling indentation style and extra features: | |
709 | ||
ec2f376f GM |
710 | `f90-do-indent' |
711 | Extra indentation within do blocks (default 3). | |
712 | `f90-if-indent' | |
713 | Extra indentation within if/select case/where/forall blocks (default 3). | |
714 | `f90-type-indent' | |
715 | Extra indentation within type/interface/block-data blocks (default 3). | |
716 | `f90-program-indent' | |
717 | Extra indentation within program/module/subroutine/function blocks | |
718 | (default 2). | |
719 | `f90-continuation-indent' | |
720 | Extra indentation applied to continuation lines (default 5). | |
721 | `f90-comment-region' | |
e3f5ce56 GM |
722 | String inserted by function \\[f90-comment-region] at start of each |
723 | line in region (default \"!!!$\"). | |
ec2f376f GM |
724 | `f90-indented-comment-re' |
725 | Regexp determining the type of comment to be intended like code | |
726 | (default \"!\"). | |
727 | `f90-directive-comment-re' | |
728 | Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented | |
729 | (default \"!hpf\\\\$\"). | |
730 | `f90-break-delimiters' | |
731 | Regexp holding list of delimiters at which lines may be broken | |
732 | (default \"[-+*/><=,% \\t]\"). | |
733 | `f90-break-before-delimiters' | |
734 | Non-nil causes `f90-do-auto-fill' to break lines before delimiters | |
735 | (default t). | |
736 | `f90-beginning-ampersand' | |
737 | Automatic insertion of \& at beginning of continuation lines (default t). | |
738 | `f90-smart-end' | |
739 | From an END statement, check and fill the end using matching block start. | |
740 | Allowed values are 'blink, 'no-blink, and nil, which determine | |
741 | whether to blink the matching beginning (default 'blink). | |
742 | `f90-auto-keyword-case' | |
743 | Automatic change of case of keywords (default nil). | |
744 | The possibilities are 'downcase-word, 'upcase-word, 'capitalize-word. | |
745 | `f90-leave-line-no' | |
746 | Do not left-justify line numbers (default nil). | |
747 | `f90-keywords-re' | |
748 | List of keywords used for highlighting/upcase-keywords etc. | |
034a9d40 RS |
749 | |
750 | Turning on F90 mode calls the value of the variable `f90-mode-hook' | |
751 | with no args, if that value is non-nil." | |
752 | (interactive) | |
753 | (kill-all-local-variables) | |
e3f5ce56 GM |
754 | (setq major-mode 'f90-mode |
755 | mode-name "F90" | |
756 | local-abbrev-table f90-mode-abbrev-table) | |
034a9d40 RS |
757 | (set-syntax-table f90-mode-syntax-table) |
758 | (use-local-map f90-mode-map) | |
e3f5ce56 GM |
759 | (set (make-local-variable 'indent-line-function) 'f90-indent-line) |
760 | (set (make-local-variable 'indent-region-function) 'f90-indent-region) | |
761 | (set (make-local-variable 'require-final-newline) t) | |
762 | (set (make-local-variable 'comment-start) "!") | |
763 | (set (make-local-variable 'comment-start-skip) "!+ *") | |
764 | (set (make-local-variable 'comment-indent-function) 'f90-comment-indent) | |
765 | (set (make-local-variable 'abbrev-all-caps) t) | |
766 | (set (make-local-variable 'normal-auto-fill-function) 'f90-do-auto-fill) | |
70186f7f | 767 | (setq indent-tabs-mode nil) ; auto buffer local |
e3f5ce56 GM |
768 | (set (make-local-variable 'font-lock-defaults) |
769 | '((f90-font-lock-keywords f90-font-lock-keywords-1 | |
770 | f90-font-lock-keywords-2 | |
771 | f90-font-lock-keywords-3 | |
772 | f90-font-lock-keywords-4) | |
773 | nil t)) | |
45d1e4d4 | 774 | (set (make-local-variable 'imenu-case-fold-search) t) |
e3f5ce56 | 775 | (set (make-local-variable 'imenu-generic-expression) |
a729409a GM |
776 | f90-imenu-generic-expression) |
777 | (set (make-local-variable 'beginning-of-defun-function) | |
778 | 'f90-beginning-of-subprogram) | |
779 | (set (make-local-variable 'end-of-defun-function) 'f90-end-of-subprogram) | |
d2d15846 DL |
780 | (set (make-local-variable 'add-log-current-defun-function) |
781 | #'f90-current-defun) | |
48548fd5 | 782 | (run-hooks 'f90-mode-hook)) |
ec2f376f | 783 | |
034a9d40 | 784 | \f |
ec2f376f | 785 | ;; Inline-functions. |
034a9d40 | 786 | (defsubst f90-in-string () |
d14e6bbe | 787 | "Return non-nil if point is inside a string. |
ec2f376f | 788 | Checks from `point-min', or `f90-cache-position', if that is non-nil |
d14e6bbe | 789 | and lies before point." |
034a9d40 RS |
790 | (let ((beg-pnt |
791 | (if (and f90-cache-position (> (point) f90-cache-position)) | |
792 | f90-cache-position | |
793 | (point-min)))) | |
794 | (nth 3 (parse-partial-sexp beg-pnt (point))))) | |
69658465 | 795 | |
034a9d40 | 796 | (defsubst f90-in-comment () |
d14e6bbe | 797 | "Return non-nil if point is inside a comment. |
ec2f376f | 798 | Checks from `point-min', or `f90-cache-position', if that is non-nil |
d14e6bbe | 799 | and lies before point." |
034a9d40 RS |
800 | (let ((beg-pnt |
801 | (if (and f90-cache-position (> (point) f90-cache-position)) | |
802 | f90-cache-position | |
803 | (point-min)))) | |
804 | (nth 4 (parse-partial-sexp beg-pnt (point))))) | |
805 | ||
806 | (defsubst f90-line-continued () | |
d14e6bbe GM |
807 | "Return t if the current line is a continued one. |
808 | This includes comment lines embedded in continued lines, but | |
809 | not the last line of a continued statement." | |
034a9d40 | 810 | (save-excursion |
6734e165 GM |
811 | (beginning-of-line) |
812 | (while (and (looking-at "[ \t]*\\(!\\|$\\)") (zerop (forward-line -1)))) | |
e3f5ce56 GM |
813 | (end-of-line) |
814 | (while (f90-in-comment) | |
815 | (search-backward "!" (line-beginning-position)) | |
816 | (skip-chars-backward "!")) | |
817 | (skip-chars-backward " \t") | |
818 | (= (preceding-char) ?&))) | |
034a9d40 | 819 | |
748dd5a8 GM |
820 | ;; GM this is not right, eg a continuation line starting with a number. |
821 | ;; Need f90-code-start-position function. | |
822 | ;; And yet, things seems to work with this... | |
7aee8047 GM |
823 | ;; cf f90-indent-line |
824 | ;; (beginning-of-line) ; digits after & \n are not line-nos | |
825 | ;; (if (not (save-excursion (and (f90-previous-statement) | |
826 | ;; (f90-line-continued)))) | |
827 | ;; (f90-indent-line-no) | |
034a9d40 RS |
828 | (defsubst f90-current-indentation () |
829 | "Return indentation of current line. | |
830 | Line-numbers are considered whitespace characters." | |
e3f5ce56 | 831 | (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9"))) |
034a9d40 RS |
832 | |
833 | (defsubst f90-indent-to (col &optional no-line-number) | |
834 | "Indent current line to column COL. | |
d14e6bbe GM |
835 | If optional argument NO-LINE-NUMBER is nil, jump over a possible |
836 | line-number before indenting." | |
034a9d40 | 837 | (beginning-of-line) |
748dd5a8 | 838 | (or no-line-number |
034a9d40 RS |
839 | (skip-chars-forward " \t0-9")) |
840 | (delete-horizontal-space) | |
748dd5a8 GM |
841 | ;; Leave >= 1 space after line number. |
842 | (indent-to col (if (zerop (current-column)) 0 1))) | |
034a9d40 | 843 | |
034a9d40 | 844 | (defsubst f90-get-present-comment-type () |
d14e6bbe GM |
845 | "If point lies within a comment, return the string starting the comment. |
846 | For example, \"!\" or \"!!\"." | |
034a9d40 | 847 | (save-excursion |
e3f5ce56 GM |
848 | (when (f90-in-comment) |
849 | (beginning-of-line) | |
89fa1ef5 | 850 | (re-search-forward "!+" (line-end-position)) |
e3f5ce56 | 851 | (while (f90-in-string) |
89fa1ef5 GM |
852 | (re-search-forward "!+" (line-end-position))) |
853 | (match-string 0)))) | |
034a9d40 RS |
854 | |
855 | (defsubst f90-equal-symbols (a b) | |
ec2f376f | 856 | "Compare strings A and B neglecting case and allowing for nil value." |
f14ca250 GM |
857 | (equal (if a (downcase a) nil) |
858 | (if b (downcase b) nil))) | |
034a9d40 | 859 | |
034a9d40 | 860 | (defsubst f90-looking-at-do () |
d14e6bbe GM |
861 | "Return (\"do\" NAME) if a do statement starts after point. |
862 | NAME is nil if the statement has no label." | |
f14ca250 | 863 | (if (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(do\\)\\>") |
0db701f0 | 864 | (list (match-string 3) (match-string 2)))) |
ee30478d KH |
865 | |
866 | (defsubst f90-looking-at-select-case () | |
d14e6bbe GM |
867 | "Return (\"select\" NAME) if a select-case statement starts after point. |
868 | NAME is nil if the statement has no label." | |
f14ca250 | 869 | (if (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\ |
d14e6bbe | 870 | \\(select\\)[ \t]*case[ \t]*(") |
748dd5a8 | 871 | (list (match-string 3) (match-string 2)))) |
034a9d40 RS |
872 | |
873 | (defsubst f90-looking-at-if-then () | |
d14e6bbe GM |
874 | "Return (\"if\" NAME) if an if () then statement starts after point. |
875 | NAME is nil if the statement has no label." | |
034a9d40 | 876 | (save-excursion |
f14ca250 GM |
877 | (when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(if\\)\\>") |
878 | (let ((struct (match-string 3)) | |
748dd5a8 | 879 | (label (match-string 2)) |
f14ca250 GM |
880 | (pos (scan-lists (point) 1 0))) |
881 | (and pos (goto-char pos)) | |
5c2a80ad GM |
882 | (skip-chars-forward " \t") |
883 | (if (or (looking-at "then\\>") | |
884 | (when (f90-line-continued) | |
885 | (f90-next-statement) | |
886 | (skip-chars-forward " \t0-9&") | |
887 | (looking-at "then\\>"))) | |
888 | (list struct label)))))) | |
034a9d40 | 889 | |
b32a3d99 | 890 | (defsubst f90-looking-at-where-or-forall () |
d14e6bbe GM |
891 | "Return (KIND NAME) if a where or forall block starts after point. |
892 | NAME is nil if the statement has no label." | |
f14ca250 GM |
893 | (save-excursion |
894 | (when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\ | |
895 | \\(where\\|forall\\)\\>") | |
896 | (let ((struct (match-string 3)) | |
748dd5a8 | 897 | (label (match-string 2)) |
f14ca250 GM |
898 | (pos (scan-lists (point) 1 0))) |
899 | (and pos (goto-char pos)) | |
900 | (skip-chars-forward " \t") | |
901 | (if (looking-at "\\(!\\|$\\)") (list struct label)))))) | |
034a9d40 RS |
902 | |
903 | (defsubst f90-looking-at-type-like () | |
d14e6bbe GM |
904 | "Return (KIND NAME) if a type/interface/block-data block starts after point. |
905 | NAME is non-nil only for type." | |
69658465 | 906 | (cond |
ee30478d | 907 | ((looking-at f90-type-def-re) |
e7272ece | 908 | (list (match-string 1) (match-string 2))) |
ee30478d | 909 | ((looking-at "\\(interface\\|block[\t]*data\\)\\>") |
6734e165 | 910 | (list (match-string 1) nil)))) |
034a9d40 RS |
911 | |
912 | (defsubst f90-looking-at-program-block-start () | |
d14e6bbe | 913 | "Return (KIND NAME) if a program block with name NAME starts after point." |
034a9d40 | 914 | (cond |
ee30478d | 915 | ((looking-at "\\(program\\)[ \t]+\\(\\sw+\\)\\>") |
6734e165 | 916 | (list (match-string 1) (match-string 2))) |
034a9d40 | 917 | ((and (not (looking-at "module[ \t]*procedure\\>")) |
ee30478d | 918 | (looking-at "\\(module\\)[ \t]+\\(\\sw+\\)\\>")) |
6734e165 | 919 | (list (match-string 1) (match-string 2))) |
b974df0a | 920 | ((and (not (looking-at "end[ \t]*\\(function\\|subroutine\\)")) |
748dd5a8 GM |
921 | (looking-at "[^!'\"\&\n]*\\(function\\|subroutine\\)[ \t]+\ |
922 | \\(\\sw+\\)")) | |
6734e165 | 923 | (list (match-string 1) (match-string 2))))) |
034a9d40 RS |
924 | |
925 | (defsubst f90-looking-at-program-block-end () | |
d14e6bbe | 926 | "Return (KIND NAME) if a block with name NAME ends after point." |
69658465 | 927 | (if (looking-at (concat "end[ \t]*" f90-blocks-re |
ee30478d | 928 | "?\\([ \t]+\\(\\sw+\\)\\)?\\>")) |
6734e165 | 929 | (list (match-string 1) (match-string 3)))) |
034a9d40 RS |
930 | |
931 | (defsubst f90-comment-indent () | |
ec2f376f GM |
932 | "Return the indentation to be used for a comment starting at point. |
933 | Used for `comment-indent-function' by F90 mode. | |
934 | \"!!!\", `f90-directive-comment-re', variable `f90-comment-region' return 0. | |
935 | `f90-indented-comment-re' (if not trailing code) calls `f90-calculate-indent'. | |
89fa1ef5 | 936 | All others return `comment-column', leaving at least one space after code." |
034a9d40 | 937 | (cond ((looking-at "!!!") 0) |
ee30478d KH |
938 | ((and f90-directive-comment-re |
939 | (looking-at f90-directive-comment-re)) 0) | |
034a9d40 | 940 | ((looking-at (regexp-quote f90-comment-region)) 0) |
2c0b59e3 DL |
941 | ((and (looking-at f90-indented-comment-re) |
942 | ;; Don't attempt to indent trailing comment as code. | |
943 | (save-excursion | |
944 | (skip-chars-backward " \t") | |
945 | (bolp))) | |
034a9d40 RS |
946 | (f90-calculate-indent)) |
947 | (t (skip-chars-backward " \t") | |
948 | (max (if (bolp) 0 (1+ (current-column))) comment-column)))) | |
949 | ||
950 | (defsubst f90-present-statement-cont () | |
d14e6bbe GM |
951 | "Return continuation properties of present statement. |
952 | Possible return values are: | |
953 | single - statement is not continued. | |
954 | begin - current line is the first in a continued statement. | |
955 | end - current line is the last in a continued statement | |
956 | middle - current line is neither first nor last in a continued statement. | |
957 | Comment lines embedded amongst continued lines return 'middle." | |
034a9d40 RS |
958 | (let (pcont cont) |
959 | (save-excursion | |
e3f5ce56 | 960 | (setq pcont (if (f90-previous-statement) (f90-line-continued)))) |
034a9d40 RS |
961 | (setq cont (f90-line-continued)) |
962 | (cond ((and (not pcont) (not cont)) 'single) | |
963 | ((and (not pcont) cont) 'begin) | |
964 | ((and pcont (not cont)) 'end) | |
965 | ((and pcont cont) 'middle) | |
e3f5ce56 | 966 | (t (error "The impossible occurred"))))) |
034a9d40 RS |
967 | |
968 | (defsubst f90-indent-line-no () | |
d14e6bbe GM |
969 | "If `f90-leave-line-no' is nil, left-justify a line number. |
970 | Leaves point at the first non-blank character after the line number. | |
971 | Call from beginning of line." | |
748dd5a8 GM |
972 | (and (null f90-leave-line-no) (looking-at "[ \t]+[0-9]") |
973 | (delete-horizontal-space)) | |
034a9d40 RS |
974 | (skip-chars-forward " \t0-9")) |
975 | ||
976 | (defsubst f90-no-block-limit () | |
d14e6bbe GM |
977 | "Return nil if point is at the edge of a code block. |
978 | Searches line forward for \"function\" or \"subroutine\", | |
979 | if all else fails." | |
748dd5a8 GM |
980 | (save-excursion |
981 | (not (or (looking-at "end") | |
982 | (looking-at "\\(do\\|if\\|else\\(if\\|where\\)?\ | |
7cae52cf | 983 | \\|select[ \t]*case\\|case\\|where\\|forall\\)\\>") |
748dd5a8 | 984 | (looking-at "\\(program\\|module\\|interface\\|\ |
034a9d40 | 985 | block[ \t]*data\\)\\>") |
748dd5a8 GM |
986 | (looking-at "\\(contains\\|\\sw+[ \t]*:\\)") |
987 | (looking-at f90-type-def-re) | |
988 | (re-search-forward "\\(function\\|subroutine\\)" | |
989 | (line-end-position) t))))) | |
034a9d40 RS |
990 | |
991 | (defsubst f90-update-line () | |
d14e6bbe GM |
992 | "Change case of current line as per `f90-auto-keyword-case'." |
993 | (if f90-auto-keyword-case | |
994 | (f90-change-keywords f90-auto-keyword-case | |
995 | (line-beginning-position) (line-end-position)))) | |
034a9d40 | 996 | \f |
7cae52cf | 997 | (defun f90-electric-insert () |
d14e6bbe | 998 | "Change keyword case and auto-fill line as operators are inserted." |
7cae52cf | 999 | (interactive) |
7cae52cf | 1000 | (self-insert-command 1) |
d14e6bbe GM |
1001 | (if auto-fill-function (f90-do-auto-fill) ; also updates line |
1002 | (f90-update-line))) | |
1003 | ||
7cae52cf | 1004 | |
034a9d40 RS |
1005 | (defun f90-get-correct-indent () |
1006 | "Get correct indent for a line starting with line number. | |
1007 | Does not check type and subprogram indentation." | |
6734e165 | 1008 | (let ((epnt (line-end-position)) icol cont) |
034a9d40 RS |
1009 | (save-excursion |
1010 | (while (and (f90-previous-statement) | |
1011 | (or (progn | |
1012 | (setq cont (f90-present-statement-cont)) | |
1013 | (or (eq cont 'end) (eq cont 'middle))) | |
1014 | (looking-at "[ \t]*[0-9]")))) | |
1015 | (setq icol (current-indentation)) | |
1016 | (beginning-of-line) | |
5c2a80ad GM |
1017 | (when (re-search-forward "\\(if\\|do\\|select\\|where\\|forall\\)" |
1018 | (line-end-position) t) | |
e3f5ce56 GM |
1019 | (beginning-of-line) |
1020 | (skip-chars-forward " \t") | |
5c2a80ad GM |
1021 | (cond ((f90-looking-at-do) |
1022 | (setq icol (+ icol f90-do-indent))) | |
1023 | ((or (f90-looking-at-if-then) | |
1024 | (f90-looking-at-where-or-forall) | |
1025 | (f90-looking-at-select-case)) | |
1026 | (setq icol (+ icol f90-if-indent)))) | |
1027 | (end-of-line)) | |
034a9d40 | 1028 | (while (re-search-forward |
ee30478d | 1029 | "\\(if\\|do\\|select\\|where\\|forall\\)" epnt t) |
e3f5ce56 GM |
1030 | (beginning-of-line) |
1031 | (skip-chars-forward " \t0-9") | |
1032 | (cond ((f90-looking-at-do) | |
1033 | (setq icol (+ icol f90-do-indent))) | |
1034 | ((or (f90-looking-at-if-then) | |
1035 | (f90-looking-at-where-or-forall) | |
1036 | (f90-looking-at-select-case)) | |
1037 | (setq icol (+ icol f90-if-indent))) | |
1038 | ((looking-at f90-end-if-re) | |
1039 | (setq icol (- icol f90-if-indent))) | |
1040 | ((looking-at "end[ \t]*do\\>") | |
1041 | (setq icol (- icol f90-do-indent)))) | |
034a9d40 RS |
1042 | (end-of-line)) |
1043 | icol))) | |
69658465 | 1044 | |
034a9d40 RS |
1045 | (defun f90-calculate-indent () |
1046 | "Calculate the indent column based on previous statements." | |
1047 | (interactive) | |
1048 | (let (icol cont (case-fold-search t) (pnt (point))) | |
1049 | (save-excursion | |
1050 | (if (not (f90-previous-statement)) | |
1051 | (setq icol 0) | |
1052 | (setq cont (f90-present-statement-cont)) | |
1053 | (if (eq cont 'end) | |
1054 | (while (not (eq 'begin (f90-present-statement-cont))) | |
1055 | (f90-previous-statement))) | |
1056 | (cond ((eq cont 'begin) | |
1057 | (setq icol (+ (f90-current-indentation) | |
1058 | f90-continuation-indent))) | |
e3f5ce56 | 1059 | ((eq cont 'middle) (setq icol (current-indentation))) |
034a9d40 RS |
1060 | (t (setq icol (f90-current-indentation)) |
1061 | (skip-chars-forward " \t") | |
1062 | (if (looking-at "[0-9]") | |
1063 | (setq icol (f90-get-correct-indent)) | |
1064 | (cond ((or (f90-looking-at-if-then) | |
1065 | (f90-looking-at-where-or-forall) | |
1066 | (f90-looking-at-select-case) | |
69658465 | 1067 | (looking-at f90-else-like-re)) |
034a9d40 RS |
1068 | (setq icol (+ icol f90-if-indent))) |
1069 | ((f90-looking-at-do) | |
1070 | (setq icol (+ icol f90-do-indent))) | |
1071 | ((f90-looking-at-type-like) | |
1072 | (setq icol (+ icol f90-type-indent))) | |
1073 | ((or (f90-looking-at-program-block-start) | |
1074 | (looking-at "contains[ \t]*\\($\\|!\\)")) | |
1075 | (setq icol (+ icol f90-program-indent))))) | |
1076 | (goto-char pnt) | |
1077 | (beginning-of-line) | |
1078 | (cond ((looking-at "[ \t]*$")) | |
ec2f376f | 1079 | ((looking-at "[ \t]*#") ; check for cpp directive |
034a9d40 RS |
1080 | (setq icol 0)) |
1081 | (t | |
1082 | (skip-chars-forward " \t0-9") | |
1083 | (cond ((or (looking-at f90-else-like-re) | |
1084 | (looking-at f90-end-if-re)) | |
1085 | (setq icol (- icol f90-if-indent))) | |
ee30478d | 1086 | ((looking-at "end[ \t]*do\\>") |
034a9d40 RS |
1087 | (setq icol (- icol f90-do-indent))) |
1088 | ((looking-at f90-end-type-re) | |
1089 | (setq icol (- icol f90-type-indent))) | |
1090 | ((or (looking-at "contains[ \t]*\\(!\\|$\\)") | |
1091 | (f90-looking-at-program-block-end)) | |
1092 | (setq icol (- icol f90-program-indent)))))) | |
1093 | )))) | |
1094 | icol)) | |
1095 | \f | |
034a9d40 RS |
1096 | (defun f90-previous-statement () |
1097 | "Move point to beginning of the previous F90 statement. | |
ec2f376f GM |
1098 | Return nil if no previous statement is found. |
1099 | A statement is a line which is neither blank nor a comment." | |
034a9d40 RS |
1100 | (interactive) |
1101 | (let (not-first-statement) | |
1102 | (beginning-of-line) | |
1103 | (while (and (setq not-first-statement (zerop (forward-line -1))) | |
ee30478d | 1104 | (looking-at "[ \t0-9]*\\(!\\|$\\|#\\)"))) |
034a9d40 RS |
1105 | not-first-statement)) |
1106 | ||
1107 | (defun f90-next-statement () | |
1108 | "Move point to beginning of the next F90 statement. | |
1109 | Return nil if no later statement is found." | |
1110 | (interactive) | |
1111 | (let (not-last-statement) | |
1112 | (beginning-of-line) | |
1113 | (while (and (setq not-last-statement | |
1114 | (and (zerop (forward-line 1)) | |
1115 | (not (eobp)))) | |
1116 | (looking-at "[ \t0-9]*\\(!\\|$\\)"))) | |
1117 | not-last-statement)) | |
1118 | ||
1119 | (defun f90-beginning-of-subprogram () | |
76bccf35 | 1120 | "Move point to the beginning of the current subprogram. |
ec2f376f | 1121 | Return (TYPE NAME), or nil if not found." |
034a9d40 RS |
1122 | (interactive) |
1123 | (let ((count 1) (case-fold-search t) matching-beg) | |
e3f5ce56 | 1124 | (beginning-of-line) |
76bccf35 | 1125 | (while (and (> count 0) |
034a9d40 | 1126 | (re-search-backward f90-program-block-re nil 'move)) |
e3f5ce56 GM |
1127 | (beginning-of-line) |
1128 | (skip-chars-forward " \t0-9") | |
1129 | (cond ((setq matching-beg (f90-looking-at-program-block-start)) | |
1130 | (setq count (1- count))) | |
1131 | ((f90-looking-at-program-block-end) | |
1132 | (setq count (1+ count))))) | |
034a9d40 RS |
1133 | (beginning-of-line) |
1134 | (if (zerop count) | |
1135 | matching-beg | |
ec2f376f | 1136 | (message "No beginning found.") |
034a9d40 RS |
1137 | nil))) |
1138 | ||
1139 | (defun f90-end-of-subprogram () | |
76bccf35 | 1140 | "Move point to the end of the current subprogram. |
ec2f376f | 1141 | Return (TYPE NAME), or nil if not found." |
034a9d40 | 1142 | (interactive) |
7aee8047 GM |
1143 | (let ((case-fold-search t) |
1144 | (count 1) | |
1145 | matching-end) | |
034a9d40 | 1146 | (end-of-line) |
76bccf35 | 1147 | (while (and (> count 0) |
034a9d40 | 1148 | (re-search-forward f90-program-block-re nil 'move)) |
e3f5ce56 GM |
1149 | (beginning-of-line) |
1150 | (skip-chars-forward " \t0-9") | |
034a9d40 | 1151 | (cond ((f90-looking-at-program-block-start) |
e3f5ce56 | 1152 | (setq count (1+ count))) |
034a9d40 | 1153 | ((setq matching-end (f90-looking-at-program-block-end)) |
e3f5ce56 | 1154 | (setq count (1- count)))) |
034a9d40 | 1155 | (end-of-line)) |
6f1d50da GM |
1156 | ;; This means f90-end-of-subprogram followed by f90-start-of-subprogram |
1157 | ;; has a net non-zero effect, which seems odd. | |
1158 | ;;; (forward-line 1) | |
034a9d40 RS |
1159 | (if (zerop count) |
1160 | matching-end | |
1161 | (message "No end found.") | |
1162 | nil))) | |
1163 | ||
6f1d50da GM |
1164 | |
1165 | (defun f90-end-of-block (&optional num) | |
1166 | "Move point forward to the end of the current code block. | |
1167 | With optional argument NUM, go forward that many balanced blocks. | |
1168 | If NUM is negative, go backward to the start of a block. | |
1169 | Checks for consistency of block types and labels (if present), | |
1170 | and completes outermost block if necessary." | |
1171 | (interactive "p") | |
1172 | (if (and num (< num 0)) (f90-beginning-of-block (- num))) | |
1173 | (let ((f90-smart-end nil) ; for the final `f90-match-end' | |
1174 | (case-fold-search t) | |
1175 | (count (or num 1)) | |
1176 | start-list start-this start-type start-label end-type end-label) | |
1177 | (if (interactive-p) (push-mark (point) t)) | |
1178 | (end-of-line) ; probably want this | |
1179 | (while (and (> count 0) (re-search-forward f90-blocks-re nil 'move)) | |
1180 | (beginning-of-line) | |
1181 | (skip-chars-forward " \t0-9") | |
1182 | (cond ((or (f90-in-string) (f90-in-comment))) | |
1183 | ((setq start-this | |
1184 | (or | |
1185 | (f90-looking-at-do) | |
1186 | (f90-looking-at-select-case) | |
1187 | (f90-looking-at-type-like) | |
1188 | (f90-looking-at-program-block-start) | |
1189 | (f90-looking-at-if-then) | |
1190 | (f90-looking-at-where-or-forall))) | |
1191 | (setq start-list (cons start-this start-list) ; not add-to-list! | |
1192 | count (1+ count))) | |
1193 | ((looking-at (concat "end[ \t]*" f90-blocks-re | |
1194 | "[ \t]*\\(\\sw+\\)?")) | |
1195 | (setq end-type (match-string 1) | |
1196 | end-label (match-string 2) | |
1197 | count (1- count)) | |
1198 | ;; Check any internal blocks. | |
1199 | (when start-list | |
1200 | (setq start-this (car start-list) | |
1201 | start-list (cdr start-list) | |
1202 | start-type (car start-this) | |
1203 | start-label (cadr start-this)) | |
748dd5a8 | 1204 | (or (f90-equal-symbols start-type end-type) |
6f1d50da GM |
1205 | (error "End type `%s' does not match start type `%s'" |
1206 | end-type start-type)) | |
748dd5a8 | 1207 | (or (f90-equal-symbols start-label end-label) |
6f1d50da GM |
1208 | (error "End label `%s' does not match start label `%s'" |
1209 | end-label start-label))))) | |
1210 | (end-of-line)) | |
76bccf35 | 1211 | (if (> count 0) (error "Missing block end")) |
6f1d50da GM |
1212 | ;; Check outermost block. |
1213 | (if (interactive-p) | |
1214 | (save-excursion | |
1215 | (beginning-of-line) | |
1216 | (skip-chars-forward " \t0-9") | |
1217 | (f90-match-end))))) | |
1218 | ||
1219 | (defun f90-beginning-of-block (&optional num) | |
1220 | "Move point backwards to the start of the current code block. | |
1221 | With optional argument NUM, go backward that many balanced blocks. | |
1222 | If NUM is negative, go forward to the end of a block. | |
1223 | Checks for consistency of block types and labels (if present). | |
1224 | Does not check the outermost block, because it may be incomplete." | |
1225 | (interactive "p") | |
1226 | (if (and num (< num 0)) (f90-end-of-block (- num))) | |
1227 | (let ((case-fold-search t) | |
1228 | (count (or num 1)) | |
748dd5a8 GM |
1229 | end-list end-this end-type end-label |
1230 | start-this start-type start-label) | |
6f1d50da GM |
1231 | (if (interactive-p) (push-mark (point) t)) |
1232 | (beginning-of-line) ; probably want this | |
1233 | (while (and (> count 0) (re-search-backward f90-blocks-re nil 'move)) | |
1234 | (beginning-of-line) | |
1235 | (skip-chars-forward " \t0-9") | |
1236 | (cond ((or (f90-in-string) (f90-in-comment))) | |
1237 | ((looking-at (concat "end[ \t]*" f90-blocks-re | |
1238 | "[ \t]*\\(\\sw+\\)?")) | |
1239 | (setq end-list (cons (list (match-string 1) (match-string 2)) | |
1240 | end-list) | |
1241 | count (1+ count))) | |
1242 | ((setq start-this | |
1243 | (or | |
1244 | (f90-looking-at-do) | |
1245 | (f90-looking-at-select-case) | |
1246 | (f90-looking-at-type-like) | |
1247 | (f90-looking-at-program-block-start) | |
1248 | (f90-looking-at-if-then) | |
1249 | (f90-looking-at-where-or-forall))) | |
1250 | (setq start-type (car start-this) | |
1251 | start-label (cadr start-this) | |
1252 | count (1- count)) | |
1253 | ;; Check any internal blocks. | |
1254 | (when end-list | |
1255 | (setq end-this (car end-list) | |
1256 | end-list (cdr end-list) | |
1257 | end-type (car end-this) | |
1258 | end-label (cadr end-this)) | |
748dd5a8 | 1259 | (or (f90-equal-symbols start-type end-type) |
6f1d50da GM |
1260 | (error "Start type `%s' does not match end type `%s'" |
1261 | start-type end-type)) | |
748dd5a8 | 1262 | (or (f90-equal-symbols start-label end-label) |
6f1d50da GM |
1263 | (error "Start label `%s' does not match end label `%s'" |
1264 | start-label end-label)))))) | |
1265 | (if (> count 0) (error "Missing block start")))) | |
1266 | ||
76bccf35 GM |
1267 | (defun f90-next-block (&optional num) |
1268 | "Move point forward to the next end or start of a code block. | |
1269 | With optional argument NUM, go forward that many blocks. | |
1270 | If NUM is negative, go backwards. | |
1271 | A block is a subroutine, if-endif, etc." | |
6f1d50da | 1272 | (interactive "p") |
76bccf35 GM |
1273 | (let ((case-fold-search t) |
1274 | (count (if num (abs num) 1))) | |
1275 | (while (and (> count 0) | |
1276 | (if (> num 0) (re-search-forward f90-blocks-re nil 'move) | |
1277 | (re-search-backward f90-blocks-re nil 'move))) | |
6f1d50da GM |
1278 | (beginning-of-line) |
1279 | (skip-chars-forward " \t0-9") | |
76bccf35 GM |
1280 | (cond ((or (f90-in-string) (f90-in-comment))) |
1281 | ((or | |
1282 | (looking-at "end[ \t]*") | |
1283 | (f90-looking-at-do) | |
1284 | (f90-looking-at-select-case) | |
1285 | (f90-looking-at-type-like) | |
1286 | (f90-looking-at-program-block-start) | |
1287 | (f90-looking-at-if-then) | |
1288 | (f90-looking-at-where-or-forall)) | |
1289 | (setq count (1- count)))) | |
1290 | (if (> num 0) (end-of-line) | |
1291 | (beginning-of-line))))) | |
1292 | ||
1293 | ||
1294 | (defun f90-previous-block (&optional num) | |
1295 | "Move point backward to the previous end or start of a code block. | |
1296 | With optional argument NUM, go backward that many blocks. | |
1297 | If NUM is negative, go forwards. | |
1298 | A block is a subroutine, if-endif, etc." | |
6f1d50da | 1299 | (interactive "p") |
76bccf35 | 1300 | (f90-next-block (- (or num 1)))) |
6f1d50da GM |
1301 | |
1302 | ||
034a9d40 | 1303 | (defun f90-mark-subprogram () |
a729409a | 1304 | "Put mark at end of F90 subprogram, point at beginning, push mark." |
034a9d40 RS |
1305 | (interactive) |
1306 | (let ((pos (point)) program) | |
1307 | (f90-end-of-subprogram) | |
0ee7f068 | 1308 | (push-mark) |
034a9d40 RS |
1309 | (goto-char pos) |
1310 | (setq program (f90-beginning-of-subprogram)) | |
1a341882 | 1311 | (if (fboundp 'zmacs-activate-region) |
0ee7f068 | 1312 | (zmacs-activate-region) |
1bb3ae5c | 1313 | (setq mark-active t |
0ee7f068 | 1314 | deactivate-mark nil)) |
034a9d40 RS |
1315 | program)) |
1316 | ||
1317 | (defun f90-comment-region (beg-region end-region) | |
1318 | "Comment/uncomment every line in the region. | |
d14e6bbe GM |
1319 | Insert the variable `f90-comment-region' at the start of every line |
1320 | in the region, or, if already present, remove it." | |
034a9d40 | 1321 | (interactive "*r") |
748dd5a8 | 1322 | (let ((end (copy-marker end-region))) |
034a9d40 RS |
1323 | (goto-char beg-region) |
1324 | (beginning-of-line) | |
1325 | (if (looking-at (regexp-quote f90-comment-region)) | |
1326 | (delete-region (point) (match-end 0)) | |
1327 | (insert f90-comment-region)) | |
e3f5ce56 | 1328 | (while (and (zerop (forward-line 1)) |
748dd5a8 | 1329 | (< (point) end)) |
034a9d40 RS |
1330 | (if (looking-at (regexp-quote f90-comment-region)) |
1331 | (delete-region (point) (match-end 0)) | |
1332 | (insert f90-comment-region))) | |
1333 | (set-marker end nil))) | |
1334 | ||
1335 | (defun f90-indent-line (&optional no-update) | |
87ee2359 GM |
1336 | "Indent current line as F90 code. |
1337 | Unless optional argument NO-UPDATE is non-nil, call `f90-update-line' | |
1338 | after indenting." | |
a729409a | 1339 | (interactive "*P") |
748dd5a8 GM |
1340 | (let ((case-fold-search t) |
1341 | (pos (point-marker)) | |
1342 | indent no-line-number) | |
1343 | (beginning-of-line) ; digits after & \n are not line-nos | |
1344 | (if (not (save-excursion (and (f90-previous-statement) | |
1345 | (f90-line-continued)))) | |
1346 | (f90-indent-line-no) | |
1347 | (setq no-line-number t) | |
1348 | (skip-chars-forward " \t")) | |
034a9d40 RS |
1349 | (if (looking-at "!") |
1350 | (setq indent (f90-comment-indent)) | |
748dd5a8 GM |
1351 | (and f90-smart-end (looking-at "end") |
1352 | (f90-match-end)) | |
034a9d40 | 1353 | (setq indent (f90-calculate-indent))) |
748dd5a8 | 1354 | (or (= indent (current-column)) |
e3f5ce56 | 1355 | (f90-indent-to indent no-line-number)) |
034a9d40 RS |
1356 | ;; If initial point was within line's indentation, |
1357 | ;; position after the indentation. Else stay at same point in text. | |
748dd5a8 GM |
1358 | (and (< (point) pos) |
1359 | (goto-char pos)) | |
69658465 | 1360 | (if auto-fill-function |
7aee8047 GM |
1361 | ;; GM NO-UPDATE not honoured, since this calls f90-update-line. |
1362 | (f90-do-auto-fill) | |
748dd5a8 | 1363 | (or no-update (f90-update-line))) |
034a9d40 RS |
1364 | (set-marker pos nil))) |
1365 | ||
1366 | (defun f90-indent-new-line () | |
a729409a | 1367 | "Re-indent current line, insert a newline and indent the newline. |
87ee2359 | 1368 | An abbrev before point is expanded if the variable `abbrev-mode' is non-nil. |
034a9d40 | 1369 | If run in the middle of a line, the line is not broken." |
a729409a | 1370 | (interactive "*") |
748dd5a8 GM |
1371 | (if abbrev-mode (expand-abbrev)) |
1372 | (beginning-of-line) ; reindent where likely to be needed | |
7aee8047 | 1373 | (f90-indent-line) ; calls indent-line-no, update-line |
748dd5a8 GM |
1374 | (end-of-line) |
1375 | (delete-horizontal-space) ; destroy trailing whitespace | |
1376 | (let ((string (f90-in-string)) | |
1377 | (cont (f90-line-continued))) | |
1378 | (and string (not cont) (insert "&")) | |
034a9d40 | 1379 | (newline) |
748dd5a8 | 1380 | (if (or string (and cont f90-beginning-ampersand)) (insert "&"))) |
7aee8047 | 1381 | (f90-indent-line 'no-update)) ; nothing to update |
034a9d40 RS |
1382 | |
1383 | ||
1384 | (defun f90-indent-region (beg-region end-region) | |
1385 | "Indent every line in region by forward parsing." | |
1386 | (interactive "*r") | |
748dd5a8 | 1387 | (let ((end-region-mark (copy-marker end-region)) |
e3f5ce56 | 1388 | (save-point (point-marker)) |
748dd5a8 | 1389 | block-list ind-lev ind-curr ind-b cont struct beg-struct end-struct) |
034a9d40 | 1390 | (goto-char beg-region) |
ec2f376f | 1391 | ;; First find a line which is not a continuation line or comment. |
034a9d40 | 1392 | (beginning-of-line) |
ee30478d | 1393 | (while (and (looking-at "[ \t]*[0-9]*\\(!\\|#\\|[ \t]*$\\)") |
034a9d40 RS |
1394 | (progn (f90-indent-line 'no-update) |
1395 | (zerop (forward-line 1))) | |
1396 | (< (point) end-region-mark))) | |
1397 | (setq cont (f90-present-statement-cont)) | |
1398 | (while (and (or (eq cont 'middle) (eq cont 'end)) | |
1399 | (f90-previous-statement)) | |
1400 | (setq cont (f90-present-statement-cont))) | |
ec2f376f | 1401 | ;; Process present line for beginning of block. |
034a9d40 RS |
1402 | (setq f90-cache-position (point)) |
1403 | (f90-indent-line 'no-update) | |
e3f5ce56 GM |
1404 | (setq ind-lev (f90-current-indentation) |
1405 | ind-curr ind-lev) | |
1406 | (beginning-of-line) | |
1407 | (skip-chars-forward " \t0-9") | |
1408 | (setq struct nil | |
1409 | ind-b (cond ((setq struct (f90-looking-at-do)) f90-do-indent) | |
034a9d40 RS |
1410 | ((or (setq struct (f90-looking-at-if-then)) |
1411 | (setq struct (f90-looking-at-select-case)) | |
1412 | (setq struct (f90-looking-at-where-or-forall)) | |
1413 | (looking-at f90-else-like-re)) | |
1414 | f90-if-indent) | |
1415 | ((setq struct (f90-looking-at-type-like)) | |
1416 | f90-type-indent) | |
34ba7e3d GM |
1417 | ((or (setq struct (f90-looking-at-program-block-start)) |
1418 | (looking-at "contains[ \t]*\\($\\|!\\)")) | |
034a9d40 RS |
1419 | f90-program-indent))) |
1420 | (if ind-b (setq ind-lev (+ ind-lev ind-b))) | |
1421 | (if struct (setq block-list (cons struct block-list))) | |
1422 | (while (and (f90-line-continued) (zerop (forward-line 1)) | |
1423 | (< (point) end-region-mark)) | |
ec2f376f GM |
1424 | (if (looking-at "[ \t]*!") |
1425 | (f90-indent-to (f90-comment-indent)) | |
748dd5a8 GM |
1426 | (or (= (current-indentation) |
1427 | (+ ind-curr f90-continuation-indent)) | |
ec2f376f GM |
1428 | (f90-indent-to (+ ind-curr f90-continuation-indent) 'no-line-no)))) |
1429 | ;; Process all following lines. | |
d14e6bbe | 1430 | (while (and (zerop (forward-line 1)) (< (point) end-region-mark)) |
034a9d40 RS |
1431 | (beginning-of-line) |
1432 | (f90-indent-line-no) | |
1433 | (setq f90-cache-position (point)) | |
1434 | (cond ((looking-at "[ \t]*$") (setq ind-curr 0)) | |
1435 | ((looking-at "[ \t]*#") (setq ind-curr 0)) | |
1436 | ((looking-at "!") (setq ind-curr (f90-comment-indent))) | |
1437 | ((f90-no-block-limit) (setq ind-curr ind-lev)) | |
1438 | ((looking-at f90-else-like-re) (setq ind-curr | |
1439 | (- ind-lev f90-if-indent))) | |
1440 | ((looking-at "contains[ \t]*\\($\\|!\\)") | |
1441 | (setq ind-curr (- ind-lev f90-program-indent))) | |
1442 | ((setq ind-b | |
1443 | (cond ((setq struct (f90-looking-at-do)) f90-do-indent) | |
1444 | ((or (setq struct (f90-looking-at-if-then)) | |
1445 | (setq struct (f90-looking-at-select-case)) | |
1446 | (setq struct (f90-looking-at-where-or-forall))) | |
1447 | f90-if-indent) | |
1448 | ((setq struct (f90-looking-at-type-like)) | |
1449 | f90-type-indent) | |
1450 | ((setq struct (f90-looking-at-program-block-start)) | |
1451 | f90-program-indent))) | |
1452 | (setq ind-curr ind-lev) | |
1453 | (if ind-b (setq ind-lev (+ ind-lev ind-b))) | |
1454 | (setq block-list (cons struct block-list))) | |
1455 | ((setq end-struct (f90-looking-at-program-block-end)) | |
1456 | (setq beg-struct (car block-list) | |
1457 | block-list (cdr block-list)) | |
69658465 | 1458 | (if f90-smart-end |
034a9d40 | 1459 | (save-excursion |
ec2f376f GM |
1460 | (f90-block-match (car beg-struct) (car (cdr beg-struct)) |
1461 | (car end-struct) (car (cdr end-struct))))) | |
034a9d40 RS |
1462 | (setq ind-b |
1463 | (cond ((looking-at f90-end-if-re) f90-if-indent) | |
1464 | ((looking-at "end[ \t]*do\\>") f90-do-indent) | |
1465 | ((looking-at f90-end-type-re) f90-type-indent) | |
1466 | ((f90-looking-at-program-block-end) | |
1467 | f90-program-indent))) | |
1468 | (if ind-b (setq ind-lev (- ind-lev ind-b))) | |
1469 | (setq ind-curr ind-lev)) | |
034a9d40 | 1470 | (t (setq ind-curr ind-lev))) |
ec2f376f | 1471 | ;; Do the indentation if necessary. |
748dd5a8 | 1472 | (or (= ind-curr (current-column)) |
034a9d40 RS |
1473 | (f90-indent-to ind-curr)) |
1474 | (while (and (f90-line-continued) (zerop (forward-line 1)) | |
1475 | (< (point) end-region-mark)) | |
ec2f376f GM |
1476 | (if (looking-at "[ \t]*!") |
1477 | (f90-indent-to (f90-comment-indent)) | |
748dd5a8 GM |
1478 | (or (= (current-indentation) |
1479 | (+ ind-curr f90-continuation-indent)) | |
ec2f376f GM |
1480 | (f90-indent-to |
1481 | (+ ind-curr f90-continuation-indent) 'no-line-no))))) | |
1482 | ;; Restore point, etc. | |
034a9d40 RS |
1483 | (setq f90-cache-position nil) |
1484 | (goto-char save-point) | |
1485 | (set-marker end-region-mark nil) | |
1486 | (set-marker save-point nil) | |
1a341882 | 1487 | (if (fboundp 'zmacs-deactivate-region) |
0ee7f068 | 1488 | (zmacs-deactivate-region) |
034a9d40 RS |
1489 | (deactivate-mark)))) |
1490 | ||
1491 | (defun f90-indent-subprogram () | |
ec2f376f | 1492 | "Properly indent the subprogram containing point." |
a729409a | 1493 | (interactive "*") |
034a9d40 | 1494 | (save-excursion |
e3f5ce56 | 1495 | (let ((program (f90-mark-subprogram))) |
034a9d40 RS |
1496 | (if program |
1497 | (progn | |
2a74bdc1 | 1498 | (message "Indenting %s %s..." |
7f03b2b5 | 1499 | (car program) (car (cdr program))) |
9a8ba072 | 1500 | (indent-region (point) (mark) nil) |
2a74bdc1 | 1501 | (message "Indenting %s %s...done" |
7f03b2b5 | 1502 | (car program) (car (cdr program)))) |
2a74bdc1 | 1503 | (message "Indenting the whole file...") |
9a8ba072 | 1504 | (indent-region (point) (mark) nil) |
2a74bdc1 | 1505 | (message "Indenting the whole file...done"))))) |
034a9d40 | 1506 | |
034a9d40 | 1507 | (defun f90-break-line (&optional no-update) |
87ee2359 GM |
1508 | "Break line at point, insert continuation marker(s) and indent. |
1509 | Unless in a string or comment, or if the optional argument NO-UPDATE | |
1510 | is non-nil, call `f90-update-line' after inserting the continuation marker." | |
a729409a | 1511 | (interactive "*P") |
89fa1ef5 GM |
1512 | (cond ((f90-in-string) |
1513 | (insert "&\n&")) | |
1514 | ((f90-in-comment) | |
1515 | (insert "\n" (f90-get-present-comment-type))) | |
1516 | (t (insert "&") | |
1517 | (or no-update (f90-update-line)) | |
1518 | (newline 1) | |
1519 | (if f90-beginning-ampersand (insert "&")))) | |
84021009 | 1520 | (indent-according-to-mode)) |
69658465 | 1521 | |
034a9d40 | 1522 | (defun f90-find-breakpoint () |
87ee2359 | 1523 | "From `fill-column', search backward for break-delimiter." |
748dd5a8 GM |
1524 | (re-search-backward f90-break-delimiters (line-beginning-position)) |
1525 | (if (not f90-break-before-delimiters) | |
1526 | (forward-char (if (looking-at f90-no-break-re) 2 1)) | |
1527 | (backward-char) | |
1528 | (or (looking-at f90-no-break-re) | |
0db701f0 | 1529 | (forward-char)))) |
034a9d40 | 1530 | |
034a9d40 | 1531 | (defun f90-do-auto-fill () |
d14e6bbe GM |
1532 | "Break line if non-white characters beyond `fill-column'. |
1533 | Update keyword case first." | |
a729409a | 1534 | (interactive "*") |
ec2f376f | 1535 | ;; Break line before or after last delimiter (non-word char) if |
b974df0a | 1536 | ;; position is beyond fill-column. |
ec2f376f | 1537 | ;; Will not break **, //, or => (as specified by f90-no-break-re). |
7cae52cf | 1538 | (f90-update-line) |
d595e95d GM |
1539 | ;; Need this for `f90-electric-insert' and other f90- callers. |
1540 | (unless (and (boundp 'comment-auto-fill-only-comments) | |
1541 | comment-auto-fill-only-comments | |
1542 | (not (f90-in-comment))) | |
1543 | (while (> (current-column) fill-column) | |
1544 | (let ((pos-mark (point-marker))) | |
1545 | (move-to-column fill-column) | |
1546 | (or (f90-in-string) (f90-find-breakpoint)) | |
1547 | (f90-break-line) | |
1548 | (goto-char pos-mark) | |
1549 | (set-marker pos-mark nil))))) | |
b974df0a | 1550 | |
a259425b GM |
1551 | (defun f90-join-lines (&optional arg) |
1552 | "Join current line to previous, fix whitespace, continuation, comments. | |
a729409a | 1553 | With optional argument ARG, join current line to following line. |
a259425b GM |
1554 | Like `join-line', but handles F90 syntax." |
1555 | (interactive "*P") | |
1556 | (beginning-of-line) | |
1557 | (if arg (forward-line 1)) | |
1558 | (when (eq (preceding-char) ?\n) | |
1559 | (skip-chars-forward " \t") | |
1560 | (if (looking-at "\&") (delete-char 1)) | |
1561 | (beginning-of-line) | |
1562 | (delete-region (point) (1- (point))) | |
034a9d40 | 1563 | (skip-chars-backward " \t") |
a259425b GM |
1564 | (and (eq (preceding-char) ?&) (delete-char -1)) |
1565 | (and (f90-in-comment) | |
1566 | (looking-at "[ \t]*!+") | |
1567 | (replace-match "")) | |
1568 | (or (f90-in-string) | |
1569 | (fixup-whitespace)))) | |
034a9d40 RS |
1570 | |
1571 | (defun f90-fill-region (beg-region end-region) | |
d14e6bbe | 1572 | "Fill every line in region by forward parsing. Join lines if possible." |
034a9d40 | 1573 | (interactive "*r") |
748dd5a8 | 1574 | (let ((end-region-mark (copy-marker end-region)) |
e3f5ce56 GM |
1575 | (go-on t) |
1576 | f90-smart-end f90-auto-keyword-case auto-fill-function) | |
034a9d40 RS |
1577 | (goto-char beg-region) |
1578 | (while go-on | |
ec2f376f | 1579 | ;; Join as much as possible. |
a729409a | 1580 | (while (progn |
a259425b GM |
1581 | (end-of-line) |
1582 | (skip-chars-backward " \t") | |
1583 | (eq (preceding-char) ?&)) | |
1584 | (f90-join-lines 'forward)) | |
ec2f376f | 1585 | ;; Chop the line if necessary. |
034a9d40 RS |
1586 | (while (> (save-excursion (end-of-line) (current-column)) |
1587 | fill-column) | |
1588 | (move-to-column fill-column) | |
7cae52cf RS |
1589 | (f90-find-breakpoint) |
1590 | (f90-break-line 'no-update)) | |
748dd5a8 | 1591 | (setq go-on (and (< (point) end-region-mark) |
e3f5ce56 GM |
1592 | (zerop (forward-line 1))) |
1593 | f90-cache-position (point))) | |
034a9d40 | 1594 | (setq f90-cache-position nil) |
748dd5a8 | 1595 | (set-marker end-region-mark nil) |
1a341882 | 1596 | (if (fboundp 'zmacs-deactivate-region) |
0ee7f068 | 1597 | (zmacs-deactivate-region) |
034a9d40 RS |
1598 | (deactivate-mark)))) |
1599 | \f | |
1600 | (defun f90-block-match (beg-block beg-name end-block end-name) | |
1601 | "Match end-struct with beg-struct and complete end-block if possible. | |
ec2f376f GM |
1602 | BEG-BLOCK is the type of block as indicated at the start (e.g., do). |
1603 | BEG-NAME is the block start name (may be nil). | |
1604 | END-BLOCK is the type of block as indicated at the end (may be nil). | |
1605 | END-NAME is the block end name (may be nil). | |
034a9d40 | 1606 | Leave point at the end of line." |
6734e165 | 1607 | (search-forward "end" (line-end-position)) |
034a9d40 | 1608 | (catch 'no-match |
748dd5a8 GM |
1609 | (if (f90-equal-symbols beg-block end-block) |
1610 | (search-forward end-block) | |
1611 | (if end-block | |
1612 | (progn | |
1613 | (message "END %s does not match %s." end-block beg-block) | |
1614 | (end-of-line) | |
1615 | (throw 'no-match nil)) | |
1616 | (message "Inserting %s." beg-block) | |
1617 | (insert (concat " " beg-block)))) | |
1618 | (if (f90-equal-symbols beg-name end-name) | |
1619 | (and end-name (search-forward end-name)) | |
1620 | (cond ((and beg-name (not end-name)) | |
1621 | (message "Inserting %s." beg-name) | |
1622 | (insert (concat " " beg-name))) | |
1623 | ((and beg-name end-name) | |
1624 | (message "Replacing %s with %s." end-name beg-name) | |
1625 | (search-forward end-name) | |
1626 | (replace-match beg-name)) | |
1627 | ((and (not beg-name) end-name) | |
1628 | (message "Deleting %s." end-name) | |
1629 | (search-forward end-name) | |
1630 | (replace-match "")))) | |
1631 | (or (looking-at "[ \t]*!") (delete-horizontal-space)))) | |
034a9d40 RS |
1632 | |
1633 | (defun f90-match-end () | |
ec2f376f | 1634 | "From an end block statement, find the corresponding block and name." |
034a9d40 | 1635 | (interactive) |
748dd5a8 GM |
1636 | (let ((count 1) |
1637 | (top-of-window (window-start)) | |
1638 | (end-point (point)) | |
1639 | (case-fold-search t) | |
e3f5ce56 | 1640 | matching-beg beg-name end-name beg-block end-block end-struct) |
5c2a80ad GM |
1641 | (when (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9") |
1642 | (setq end-struct (f90-looking-at-program-block-end))) | |
e3f5ce56 GM |
1643 | (setq end-block (car end-struct) |
1644 | end-name (car (cdr end-struct))) | |
5c2a80ad GM |
1645 | (save-excursion |
1646 | (beginning-of-line) | |
6dd52caf | 1647 | (while (and (> count 0) (re-search-backward f90-blocks-re nil t)) |
e3f5ce56 | 1648 | (beginning-of-line) |
748dd5a8 GM |
1649 | ;; GM not a line number if continued line. |
1650 | ;;; (skip-chars-forward " \t") | |
1651 | ;;; (skip-chars-forward "0-9") | |
e3f5ce56 | 1652 | (skip-chars-forward " \t0-9") |
6dd52caf GM |
1653 | (cond ((or (f90-in-string) (f90-in-comment))) |
1654 | ((setq matching-beg | |
e3f5ce56 GM |
1655 | (or |
1656 | (f90-looking-at-do) | |
1657 | (f90-looking-at-if-then) | |
1658 | (f90-looking-at-where-or-forall) | |
1659 | (f90-looking-at-select-case) | |
1660 | (f90-looking-at-type-like) | |
1661 | (f90-looking-at-program-block-start))) | |
1662 | (setq count (1- count))) | |
6dd52caf | 1663 | ((looking-at (concat "end[ \t]*" f90-blocks-re)) |
e3f5ce56 | 1664 | (setq count (1+ count))))) |
6dd52caf | 1665 | (if (> count 0) |
5c2a80ad GM |
1666 | (message "No matching beginning.") |
1667 | (f90-update-line) | |
1668 | (if (eq f90-smart-end 'blink) | |
1669 | (if (< (point) top-of-window) | |
1670 | (message "Matches %s: %s" | |
1671 | (what-line) | |
1672 | (buffer-substring | |
1673 | (line-beginning-position) | |
1674 | (line-end-position))) | |
1675 | (sit-for 1))) | |
e3f5ce56 GM |
1676 | (setq beg-block (car matching-beg) |
1677 | beg-name (car (cdr matching-beg))) | |
5c2a80ad GM |
1678 | (goto-char end-point) |
1679 | (beginning-of-line) | |
1680 | (f90-block-match beg-block beg-name end-block end-name)))))) | |
034a9d40 RS |
1681 | |
1682 | (defun f90-insert-end () | |
87ee2359 | 1683 | "Insert a complete end statement matching beginning of present block." |
a729409a | 1684 | (interactive "*") |
e3f5ce56 | 1685 | (let ((f90-smart-end (or f90-smart-end 'blink))) |
034a9d40 RS |
1686 | (insert "end") |
1687 | (f90-indent-new-line))) | |
1688 | \f | |
ec2f376f | 1689 | ;; Abbrevs and keywords. |
034a9d40 RS |
1690 | |
1691 | (defun f90-abbrev-start () | |
69658465 | 1692 | "Typing `\\[help-command] or `? lists all the F90 abbrevs. |
034a9d40 | 1693 | Any other key combination is executed normally." |
7aee8047 GM |
1694 | (interactive "*") |
1695 | (insert last-command-char) | |
1696 | (let (char event) | |
1697 | (if (fboundp 'next-command-event) ; XEmacs | |
1698 | (setq event (next-command-event) | |
1699 | char (event-to-character event)) | |
1700 | (setq event (read-event) | |
1701 | char event)) | |
be550ccc | 1702 | ;; Insert char if not equal to `?', or if abbrev-mode is off. |
7aee8047 | 1703 | (if (and abbrev-mode (or (eq char ??) (eq char help-char))) |
034a9d40 | 1704 | (f90-abbrev-help) |
7aee8047 | 1705 | (setq unread-command-events (list event))))) |
034a9d40 RS |
1706 | |
1707 | (defun f90-abbrev-help () | |
1708 | "List the currently defined abbrevs in F90 mode." | |
1709 | (interactive) | |
1710 | (message "Listing abbrev table...") | |
1711 | (display-buffer (f90-prepare-abbrev-list-buffer)) | |
1712 | (message "Listing abbrev table...done")) | |
1713 | ||
1714 | (defun f90-prepare-abbrev-list-buffer () | |
ec2f376f | 1715 | "Create a buffer listing the F90 mode abbreviations." |
034a9d40 RS |
1716 | (save-excursion |
1717 | (set-buffer (get-buffer-create "*Abbrevs*")) | |
1718 | (erase-buffer) | |
1719 | (insert-abbrev-table-description 'f90-mode-abbrev-table t) | |
1720 | (goto-char (point-min)) | |
1721 | (set-buffer-modified-p nil) | |
1722 | (edit-abbrevs-mode)) | |
1723 | (get-buffer-create "*Abbrevs*")) | |
1724 | ||
1725 | (defun f90-upcase-keywords () | |
1726 | "Upcase all F90 keywords in the buffer." | |
a729409a | 1727 | (interactive "*") |
034a9d40 RS |
1728 | (f90-change-keywords 'upcase-word)) |
1729 | ||
1730 | (defun f90-capitalize-keywords () | |
1731 | "Capitalize all F90 keywords in the buffer." | |
a729409a | 1732 | (interactive "*") |
034a9d40 RS |
1733 | (f90-change-keywords 'capitalize-word)) |
1734 | ||
1735 | (defun f90-downcase-keywords () | |
1736 | "Downcase all F90 keywords in the buffer." | |
a729409a | 1737 | (interactive "*") |
034a9d40 RS |
1738 | (f90-change-keywords 'downcase-word)) |
1739 | ||
1740 | (defun f90-upcase-region-keywords (beg end) | |
1741 | "Upcase all F90 keywords in the region." | |
1742 | (interactive "*r") | |
1743 | (f90-change-keywords 'upcase-word beg end)) | |
1744 | ||
1745 | (defun f90-capitalize-region-keywords (beg end) | |
1746 | "Capitalize all F90 keywords in the region." | |
1747 | (interactive "*r") | |
1748 | (f90-change-keywords 'capitalize-word beg end)) | |
1749 | ||
1750 | (defun f90-downcase-region-keywords (beg end) | |
1751 | "Downcase all F90 keywords in the region." | |
1752 | (interactive "*r") | |
1753 | (f90-change-keywords 'downcase-word beg end)) | |
1754 | ||
1755 | ;; Change the keywords according to argument. | |
1756 | (defun f90-change-keywords (change-word &optional beg end) | |
ec2f376f | 1757 | "Change the case of F90 keywords in the region (if specified) or buffer. |
02f85cba | 1758 | CHANGE-WORD should be one of 'upcase-word, 'downcase-word, 'capitalize-word." |
034a9d40 | 1759 | (save-excursion |
e3f5ce56 GM |
1760 | (setq beg (or beg (point-min)) |
1761 | end (or end (point-max))) | |
69658465 | 1762 | (let ((keyword-re |
ee30478d KH |
1763 | (concat "\\(" |
1764 | f90-keywords-re "\\|" f90-procedures-re "\\|" | |
1765 | f90-hpf-keywords-re "\\|" f90-operators-re "\\)")) | |
a1506d29 | 1766 | (ref-point (point-min)) |
e3f5ce56 GM |
1767 | (modified (buffer-modified-p)) |
1768 | state saveword back-point) | |
034a9d40 | 1769 | (goto-char beg) |
ee30478d KH |
1770 | (unwind-protect |
1771 | (while (re-search-forward keyword-re end t) | |
5c2a80ad GM |
1772 | (unless (progn |
1773 | (setq state (parse-partial-sexp ref-point (point))) | |
1774 | (or (nth 3 state) (nth 4 state) | |
748dd5a8 | 1775 | ;; GM f90-directive-comment-re? |
ec2f376f | 1776 | (save-excursion ; check for cpp directive |
5c2a80ad GM |
1777 | (beginning-of-line) |
1778 | (skip-chars-forward " \t0-9") | |
1779 | (looking-at "#")))) | |
ee30478d | 1780 | (setq ref-point (point) |
e3f5ce56 GM |
1781 | back-point (save-excursion (backward-word 1) (point)) |
1782 | saveword (buffer-substring back-point ref-point)) | |
ee30478d KH |
1783 | (funcall change-word -1) |
1784 | (or (string= saveword (buffer-substring back-point ref-point)) | |
1785 | (setq modified t)))) | |
1786 | (or modified (set-buffer-modified-p nil)))))) | |
034a9d40 | 1787 | |
d2d15846 DL |
1788 | |
1789 | (defun f90-current-defun () | |
1790 | "Function to use for `add-log-current-defun-function' in F90 mode." | |
1791 | (save-excursion | |
1792 | (nth 1 (f90-beginning-of-subprogram)))) | |
1793 | ||
034a9d40 | 1794 | (provide 'f90) |
db97b872 | 1795 | |
ab5796a9 | 1796 | ;;; arch-tag: fceac97c-c147-44bd-aec0-172d4b560ef8 |
034a9d40 | 1797 | ;;; f90.el ends here |