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be010748 | 1 | ;;; f90.el --- Fortran-90 mode (free format) |
b578f267 | 2 | |
a20b3848 | 3 | ;; Copyright (C) 1995, 1996, 1997, 2000, 2001, 2002, 2003, 2004, 2005, |
4e643dd2 | 4 | ;; 2006, 2007, 2008 Free Software Foundation, Inc. |
034a9d40 | 5 | |
88ea9ddc | 6 | ;; Author: Torbj\"orn Einarsson <Torbjorn.Einarsson@era.ericsson.se> |
9877fcf1 | 7 | ;; Maintainer: Glenn Morris <rgm@gnu.org> |
034a9d40 RS |
8 | ;; Keywords: fortran, f90, languages |
9 | ||
b578f267 EN |
10 | ;; This file is part of GNU Emacs. |
11 | ||
12 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
034a9d40 | 13 | ;; it under the terms of the GNU General Public License as published by |
1a484753 | 14 | ;; the Free Software Foundation; either version 3, or (at your option) |
b578f267 | 15 | ;; any later version. |
034a9d40 | 16 | |
b578f267 | 17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
034a9d40 RS |
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 | 23 | ;; along with GNU Emacs; see the file COPYING. If not, write to the |
3a35cf56 LK |
24 | ;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
25 | ;; Boston, MA 02110-1301, USA. | |
034a9d40 RS |
26 | |
27 | ;;; Commentary: | |
b578f267 | 28 | |
87ee2359 GM |
29 | ;; Major mode for editing F90 programs in FREE FORMAT. |
30 | ;; The minor language revision F95 is also supported (with font-locking). | |
b1ca7740 | 31 | ;; Some/many (?) aspects of F2003 are supported. |
87ee2359 | 32 | |
034a9d40 | 33 | ;; Knows about continuation lines, named structured statements, and other |
87ee2359 GM |
34 | ;; features in F90 including HPF (High Performance Fortran) structures. |
35 | ;; The basic feature provides accurate indentation of F90 programs. | |
034a9d40 RS |
36 | ;; In addition, there are many more features like automatic matching of all |
37 | ;; end statements, an auto-fill function to break long lines, a join-lines | |
87ee2359 GM |
38 | ;; function which joins continued lines, etc. |
39 | ||
40 | ;; To facilitate typing, a fairly complete list of abbreviations is provided. | |
41 | ;; All abbreviations begin with the backquote character "`" | |
42 | ;; (this requires modification of the syntax-table). | |
43 | ;; For example, `i expands to integer (if abbrev-mode is on). | |
034a9d40 | 44 | |
87ee2359 | 45 | ;; There are two separate features for altering the appearance of code: |
034a9d40 | 46 | ;; 1) Upcasing or capitalizing of all keywords. |
87ee2359 GM |
47 | ;; 2) Colors/fonts using font-lock-mode. |
48 | ;; Automatic upcase or downcase of keywords is controlled by the variable | |
49 | ;; f90-auto-keyword-case. | |
034a9d40 RS |
50 | |
51 | ;; The indentations of lines starting with ! is determined by the first of the | |
87ee2359 | 52 | ;; following matches (values in the left column are the defaults): |
ee30478d KH |
53 | |
54 | ;; start-string/regexp indent variable holding start-string/regexp | |
55 | ;; !!! 0 | |
56 | ;; !hpf\\$ (re) 0 f90-directive-comment-re | |
57 | ;; !!$ 0 f90-comment-region | |
58 | ;; ! (re) as code f90-indented-comment-re | |
59 | ;; default comment-column | |
60 | ||
61 | ;; Ex: Here is the result of 3 different settings of f90-indented-comment-re | |
62 | ;; f90-indented-comment-re !-indentation !!-indentation | |
63 | ;; ! as code as code | |
64 | ;; !! comment-column as code | |
65 | ;; ![^!] as code comment-column | |
87ee2359 GM |
66 | ;; Trailing comments are indented to comment-column with indent-for-comment. |
67 | ;; The function f90-comment-region toggles insertion of | |
68 | ;; the variable f90-comment-region in every line of the region. | |
034a9d40 | 69 | |
a729409a | 70 | ;; One common convention for free vs. fixed format is that free format files |
69658465 | 71 | ;; have the ending .f90 or .f95 while fixed format files have the ending .f. |
87ee2359 GM |
72 | ;; Emacs automatically loads Fortran files in the appropriate mode based |
73 | ;; on extension. You can modify this by adjusting the variable auto-mode-alist. | |
74 | ;; For example: | |
75 | ;; (add-to-list 'auto-mode-alist '("\\.f\\'" . f90-mode)) | |
76 | ||
034a9d40 | 77 | ;; Once you have entered f90-mode, you may get more info by using |
69658465 | 78 | ;; the command describe-mode (C-h m). For online help use |
87ee2359 GM |
79 | ;; C-h f <Name of function you want described>, or |
80 | ;; C-h v <Name of variable you want described>. | |
034a9d40 | 81 | |
87ee2359 GM |
82 | ;; To customize f90-mode for your taste, use, for example: |
83 | ;; (you don't have to specify values for all the parameters below) | |
84 | ;; | |
d2d15846 | 85 | ;;(add-hook 'f90-mode-hook |
87ee2359 | 86 | ;; ;; These are the default values. |
034a9d40 RS |
87 | ;; '(lambda () (setq f90-do-indent 3 |
88 | ;; f90-if-indent 3 | |
89 | ;; f90-type-indent 3 | |
90 | ;; f90-program-indent 2 | |
91 | ;; f90-continuation-indent 5 | |
92 | ;; f90-comment-region "!!$" | |
ee30478d KH |
93 | ;; f90-directive-comment-re "!hpf\\$" |
94 | ;; f90-indented-comment-re "!" | |
87ee2359 | 95 | ;; f90-break-delimiters "[-+\\*/><=,% \t]" |
034a9d40 RS |
96 | ;; f90-break-before-delimiters t |
97 | ;; f90-beginning-ampersand t | |
98 | ;; f90-smart-end 'blink | |
99 | ;; f90-auto-keyword-case nil | |
87ee2359 | 100 | ;; f90-leave-line-no nil |
72e80cad | 101 | ;; indent-tabs-mode nil |
b974df0a | 102 | ;; f90-font-lock-keywords f90-font-lock-keywords-2 |
72e80cad | 103 | ;; ) |
87ee2359 | 104 | ;; ;; These are not default. |
034a9d40 | 105 | ;; (abbrev-mode 1) ; turn on abbreviation mode |
b974df0a | 106 | ;; (f90-add-imenu-menu) ; extra menu with functions etc. |
034a9d40 RS |
107 | ;; (if f90-auto-keyword-case ; change case of all keywords on startup |
108 | ;; (f90-change-keywords f90-auto-keyword-case)) | |
640f9e26 | 109 | ;; )) |
87ee2359 GM |
110 | ;; |
111 | ;; in your .emacs file. You can also customize the lists | |
112 | ;; f90-font-lock-keywords, etc. | |
113 | ;; | |
114 | ;; The auto-fill and abbreviation minor modes are accessible from the F90 menu, | |
b974df0a | 115 | ;; or by using M-x auto-fill-mode and M-x abbrev-mode, respectively. |
034a9d40 RS |
116 | |
117 | ;; Remarks | |
118 | ;; 1) Line numbers are by default left-justified. If f90-leave-line-no is | |
119 | ;; non-nil, the line numbers are never touched. | |
87ee2359 | 120 | ;; 2) Multi-; statements like "do i=1,20 ; j=j+i ; end do" are not handled |
034a9d40 | 121 | ;; correctly, but I imagine them to be rare. |
ee30478d | 122 | ;; 3) Regexps for hilit19 are no longer supported. |
87ee2359 | 123 | ;; 4) For FIXED FORMAT code, use fortran mode. |
034a9d40 | 124 | ;; 5) This mode does not work under emacs-18.x. |
72e80cad KH |
125 | ;; 6) Preprocessor directives, i.e., lines starting with # are left-justified |
126 | ;; and are untouched by all case-changing commands. There is, at present, no | |
127 | ;; mechanism for treating multi-line directives (continued by \ ). | |
ee30478d KH |
128 | ;; 7) f77 do-loops do 10 i=.. ; ; 10 continue are not correctly indented. |
129 | ;; You are urged to use f90-do loops (with labels if you wish). | |
c80718cc | 130 | ;; 8) The highlighting mode under XEmacs is not as complete as under Emacs. |
034a9d40 RS |
131 | |
132 | ;; List of user commands | |
133 | ;; f90-previous-statement f90-next-statement | |
134 | ;; f90-beginning-of-subprogram f90-end-of-subprogram f90-mark-subprogram | |
135 | ;; f90-comment-region | |
136 | ;; f90-indent-line f90-indent-new-line | |
137 | ;; f90-indent-region (can be called by calling indent-region) | |
138 | ;; f90-indent-subprogram | |
139 | ;; f90-break-line f90-join-lines | |
034a9d40 RS |
140 | ;; f90-fill-region |
141 | ;; f90-insert-end | |
142 | ;; f90-upcase-keywords f90-upcase-region-keywords | |
143 | ;; f90-downcase-keywords f90-downcase-region-keywords | |
144 | ;; f90-capitalize-keywords f90-capitalize-region-keywords | |
b974df0a EN |
145 | ;; f90-add-imenu-menu |
146 | ;; f90-font-lock-1, f90-font-lock-2, f90-font-lock-3, f90-font-lock-4 | |
034a9d40 | 147 | |
87ee2359 | 148 | ;; Original author's thanks |
034a9d40 RS |
149 | ;; Thanks to all the people who have tested the mode. Special thanks to Jens |
150 | ;; Bloch Helmers for encouraging me to write this code, for creative | |
151 | ;; suggestions as well as for the lists of hpf-commands. | |
152 | ;; Also thanks to the authors of the fortran and pascal modes, on which some | |
153 | ;; of this code is built. | |
154 | ||
a729409a GM |
155 | ;;; Code: |
156 | ||
87ee2359 | 157 | ;; TODO |
b1ca7740 GM |
158 | ;; 1. Any missing F2003 syntax? |
159 | ;; 2. Have "f90-mode" just recognize F90 syntax, then derived modes | |
5ab33946 | 160 | ;; "f95-mode", "f2003-mode" for the language revisions. |
b1ca7740 GM |
161 | ;; 3. Support for align. |
162 | ;; Font-locking: | |
163 | ;; 1. OpenMP, OpenMPI?, preprocessor highlighting. | |
164 | ;; 2. interface blah - Highlight "blah" in function-name face? | |
165 | ;; Need to avoid "interface operator (+)" etc. | |
166 | ;; 3. integer_name = 1 | |
167 | ;; 4. Labels for "else" statements (F2003)? | |
87ee2359 | 168 | |
34ba7e3d GM |
169 | (defvar comment-auto-fill-only-comments) |
170 | (defvar font-lock-keywords) | |
0ee7f068 | 171 | |
034a9d40 | 172 | ;; User options |
034a9d40 | 173 | |
fcad5199 | 174 | (defgroup f90 nil |
a729409a | 175 | "Major mode for editing free format Fortran 90,95 code." |
8ec3bce0 | 176 | :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces) |
d2d15846 | 177 | :group 'languages) |
034a9d40 | 178 | |
fcad5199 | 179 | (defgroup f90-indent nil |
a729409a | 180 | "Indentation in free format Fortran." |
fcad5199 | 181 | :prefix "f90-" |
a729409a | 182 | :group 'f90) |
034a9d40 | 183 | |
034a9d40 | 184 | |
fcad5199 | 185 | (defcustom f90-do-indent 3 |
d4654cff | 186 | "Extra indentation applied to DO blocks." |
a729409a | 187 | :type 'integer |
fcad5199 | 188 | :group 'f90-indent) |
b2752d93 | 189 | (put 'f90-do-indent 'safe-local-variable 'integerp) |
034a9d40 | 190 | |
fcad5199 | 191 | (defcustom f90-if-indent 3 |
d4654cff | 192 | "Extra indentation applied to IF, SELECT CASE, WHERE and FORALL blocks." |
a729409a | 193 | :type 'integer |
fcad5199 | 194 | :group 'f90-indent) |
b2752d93 | 195 | (put 'f90-if-indent 'safe-local-variable 'integerp) |
034a9d40 | 196 | |
fcad5199 | 197 | (defcustom f90-type-indent 3 |
5ab33946 | 198 | "Extra indentation applied to TYPE, ENUM, INTERFACE and BLOCK DATA blocks." |
a729409a | 199 | :type 'integer |
fcad5199 | 200 | :group 'f90-indent) |
b2752d93 | 201 | (put 'f90-type-indent 'safe-local-variable 'integerp) |
034a9d40 | 202 | |
fcad5199 | 203 | (defcustom f90-program-indent 2 |
d4654cff | 204 | "Extra indentation applied to PROGRAM, MODULE, SUBROUTINE, FUNCTION blocks." |
a729409a | 205 | :type 'integer |
fcad5199 | 206 | :group 'f90-indent) |
b2752d93 | 207 | (put 'f90-program-indent 'safe-local-variable 'integerp) |
034a9d40 | 208 | |
5ab33946 GM |
209 | (defcustom f90-associate-indent 2 |
210 | "Extra indentation applied to ASSOCIATE blocks." | |
211 | :type 'integer | |
212 | :group 'f90-indent | |
213 | :version "23.1") | |
b2752d93 | 214 | (put 'f90-associate-indent 'safe-local-variable 'integerp) |
5ab33946 | 215 | |
fcad5199 | 216 | (defcustom f90-continuation-indent 5 |
d4654cff | 217 | "Extra indentation applied to continuation lines." |
a729409a | 218 | :type 'integer |
fcad5199 | 219 | :group 'f90-indent) |
b2752d93 | 220 | (put 'f90-continuation-indent 'safe-local-variable 'integerp) |
034a9d40 | 221 | |
fcad5199 | 222 | (defcustom f90-comment-region "!!$" |
d4654cff | 223 | "String inserted by \\[f90-comment-region] at start of each line in region." |
a729409a | 224 | :type 'string |
fcad5199 | 225 | :group 'f90-indent) |
b2752d93 | 226 | (put 'f90-comment-region 'safe-local-variable 'stringp) |
fcad5199 RS |
227 | |
228 | (defcustom f90-indented-comment-re "!" | |
d4654cff | 229 | "Regexp matching comments to indent as code." |
a729409a | 230 | :type 'regexp |
fcad5199 | 231 | :group 'f90-indent) |
f28af2ae | 232 | (put 'f90-indented-comment-re 'safe-local-variable 'stringp) |
fcad5199 RS |
233 | |
234 | (defcustom f90-directive-comment-re "!hpf\\$" | |
d4654cff | 235 | "Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented." |
a729409a | 236 | :type 'regexp |
fcad5199 | 237 | :group 'f90-indent) |
f28af2ae | 238 | (put 'f90-directive-comment-re 'safe-local-variable 'stringp) |
fcad5199 RS |
239 | |
240 | (defcustom f90-beginning-ampersand t | |
d4654cff | 241 | "Non-nil gives automatic insertion of \& at start of continuation line." |
a729409a | 242 | :type 'boolean |
fcad5199 | 243 | :group 'f90) |
b2752d93 | 244 | (put 'f90-beginning-ampersand 'safe-local-variable 'booleanp) |
fcad5199 RS |
245 | |
246 | (defcustom f90-smart-end 'blink | |
d4654cff | 247 | "Qualification of END statements according to the matching block start. |
784d007b GM |
248 | For example, the END that closes an IF block is changed to END |
249 | IF. If the block has a label, this is added as well. Allowed | |
250 | values are 'blink, 'no-blink, and nil. If nil, nothing is done. | |
251 | The other two settings have the same effect, but 'blink | |
252 | additionally blinks the cursor to the start of the block." | |
a729409a | 253 | :type '(choice (const blink) (const no-blink) (const nil)) |
fcad5199 | 254 | :group 'f90) |
b2752d93 GM |
255 | (put 'f90-smart-end 'safe-local-variable |
256 | (lambda (value) (memq value '(blink no-blink nil)))) | |
034a9d40 | 257 | |
fcad5199 | 258 | (defcustom f90-break-delimiters "[-+\\*/><=,% \t]" |
d4654cff | 259 | "Regexp matching delimiter characters at which lines may be broken. |
6f43f690 GM |
260 | There are certain tokens comprised entirely of characters |
261 | matching this regexp that should not be split, and these are | |
262 | specified by the constant `f90-no-break-re'." | |
a729409a | 263 | :type 'regexp |
fcad5199 | 264 | :group 'f90) |
f28af2ae | 265 | (put 'f90-break-delimiters 'safe-local-variable 'stringp) |
034a9d40 | 266 | |
fcad5199 | 267 | (defcustom f90-break-before-delimiters t |
d4654cff | 268 | "Non-nil causes `f90-do-auto-fill' to break lines before delimiters." |
a729409a | 269 | :type 'boolean |
fcad5199 | 270 | :group 'f90) |
b2752d93 | 271 | (put 'f90-break-before-delimiters 'safe-local-variable 'booleanp) |
034a9d40 | 272 | |
fcad5199 | 273 | (defcustom f90-auto-keyword-case nil |
d4654cff | 274 | "Automatic case conversion of keywords. |
87ee2359 | 275 | The options are 'downcase-word, 'upcase-word, 'capitalize-word and nil." |
a729409a GM |
276 | :type '(choice (const downcase-word) (const upcase-word) |
277 | (const capitalize-word) (const nil)) | |
fcad5199 | 278 | :group 'f90) |
b2752d93 GM |
279 | (put 'f90-auto-keyword-case 'safe-local-variable |
280 | (lambda (value) (memq value '(downcase-word | |
281 | capitalize-word upcase-word nil)))) | |
fcad5199 RS |
282 | |
283 | (defcustom f90-leave-line-no nil | |
d4654cff | 284 | "If non-nil, line numbers are not left justified." |
a729409a | 285 | :type 'boolean |
fcad5199 | 286 | :group 'f90) |
b2752d93 | 287 | (put 'f90-leave-line-no 'safe-local-variable 'booleanp) |
fcad5199 | 288 | |
0ee7f068 GM |
289 | (defcustom f90-mode-hook nil |
290 | "Hook run when entering F90 mode." | |
a729409a | 291 | :type 'hook |
0ee7f068 | 292 | :options '(f90-add-imenu-menu) |
a729409a | 293 | :group 'f90) |
b2752d93 GM |
294 | (put 'f90-mode-hook 'safe-local-variable |
295 | (lambda (value) (member value '((f90-add-imenu-menu) nil)))) | |
0ee7f068 GM |
296 | |
297 | ;; User options end here. | |
1bb3ae5c | 298 | |
ee30478d | 299 | (defconst f90-keywords-re |
84021009 | 300 | (regexp-opt '("allocatable" "allocate" "assign" "assignment" "backspace" |
640f9e26 GM |
301 | "block" "call" "case" "character" "close" "common" "complex" |
302 | "contains" "continue" "cycle" "data" "deallocate" | |
303 | "dimension" "do" "double" "else" "elseif" "elsewhere" "end" | |
304 | "enddo" "endfile" "endif" "entry" "equivalence" "exit" | |
305 | "external" "forall" "format" "function" "goto" "if" | |
306 | "implicit" "include" "inquire" "integer" "intent" | |
307 | "interface" "intrinsic" "logical" "module" "namelist" "none" | |
308 | "nullify" "only" "open" "operator" "optional" "parameter" | |
309 | "pause" "pointer" "precision" "print" "private" "procedure" | |
310 | "program" "public" "read" "real" "recursive" "result" "return" | |
311 | "rewind" "save" "select" "sequence" "stop" "subroutine" | |
312 | "target" "then" "type" "use" "where" "while" "write" | |
313 | ;; F95 keywords. | |
5ab33946 GM |
314 | "elemental" "pure" |
315 | ;; F2003 | |
316 | "abstract" "associate" "asynchronous" "bind" "class" | |
317 | "deferred" "enum" "enumerator" "extends" "extends_type_of" | |
b1ca7740 GM |
318 | "final" "generic" "import" "non_intrinsic" "non_overridable" |
319 | "nopass" "pass" "protected" "same_type_as" "value" "volatile" | |
5ab33946 | 320 | ) 'words) |
9877fcf1 | 321 | "Regexp used by the function `f90-change-keywords'.") |
ee30478d KH |
322 | |
323 | (defconst f90-keywords-level-3-re | |
84021009 SM |
324 | (regexp-opt |
325 | '("allocatable" "allocate" "assign" "assignment" "backspace" | |
326 | "close" "deallocate" "dimension" "endfile" "entry" "equivalence" | |
327 | "external" "inquire" "intent" "intrinsic" "nullify" "only" "open" | |
5ab33946 | 328 | ;; FIXME operator and assignment should be F2003 procedures? |
84021009 SM |
329 | "operator" "optional" "parameter" "pause" "pointer" "print" "private" |
330 | "public" "read" "recursive" "result" "rewind" "save" "select" | |
331 | "sequence" "target" "write" | |
332 | ;; F95 keywords. | |
5ab33946 GM |
333 | "elemental" "pure" |
334 | ;; F2003. asynchronous separate. | |
b1ca7740 | 335 | "abstract" "deferred" "import" "final" "non_intrinsic" "non_overridable" |
5ab33946 GM |
336 | "nopass" "pass" "protected" "value" "volatile" |
337 | ) 'words) | |
84021009 | 338 | "Keyword-regexp for font-lock level >= 3.") |
ee30478d | 339 | |
ee30478d | 340 | (defconst f90-procedures-re |
84021009 | 341 | (concat "\\<" |
69658465 GM |
342 | (regexp-opt |
343 | '("abs" "achar" "acos" "adjustl" "adjustr" "aimag" "aint" | |
344 | "all" "allocated" "anint" "any" "asin" "associated" | |
345 | "atan" "atan2" "bit_size" "btest" "ceiling" "char" "cmplx" | |
346 | "conjg" "cos" "cosh" "count" "cshift" "date_and_time" "dble" | |
347 | "digits" "dim" "dot_product" "dprod" "eoshift" "epsilon" | |
348 | "exp" "exponent" "floor" "fraction" "huge" "iachar" "iand" | |
349 | "ibclr" "ibits" "ibset" "ichar" "ieor" "index" "int" "ior" | |
350 | "ishft" "ishftc" "kind" "lbound" "len" "len_trim" "lge" "lgt" | |
351 | "lle" "llt" "log" "log10" "logical" "matmul" "max" | |
352 | "maxexponent" "maxloc" "maxval" "merge" "min" "minexponent" | |
353 | "minloc" "minval" "mod" "modulo" "mvbits" "nearest" "nint" | |
354 | "not" "pack" "precision" "present" "product" "radix" | |
355 | ;; Real is taken out here to avoid highlighting declarations. | |
356 | "random_number" "random_seed" "range" ;; "real" | |
357 | "repeat" "reshape" "rrspacing" "scale" "scan" | |
358 | "selected_int_kind" "selected_real_kind" "set_exponent" | |
359 | "shape" "sign" "sin" "sinh" "size" "spacing" "spread" "sqrt" | |
360 | "sum" "system_clock" "tan" "tanh" "tiny" "transfer" | |
361 | "transpose" "trim" "ubound" "unpack" "verify" | |
362 | ;; F95 intrinsic functions. | |
5ab33946 GM |
363 | "null" "cpu_time" |
364 | ;; F2003. | |
365 | "move_alloc" "command_argument_count" "get_command" | |
366 | "get_command_argument" "get_environment_variable" | |
367 | "selected_char_kind" "wait" "flush" "new_line" | |
368 | "extends" "extends_type_of" "same_type_as" "bind" | |
369 | ;; F2003 ieee_arithmetic intrinsic module. | |
370 | "ieee_support_underflow_control" "ieee_get_underflow_mode" | |
371 | "ieee_set_underflow_mode" | |
372 | ;; F2003 iso_c_binding intrinsic module. | |
373 | "c_loc" "c_funloc" "c_associated" "c_f_pointer" | |
374 | "c_f_procpointer" | |
375 | ) t) | |
69658465 GM |
376 | ;; A left parenthesis to avoid highlighting non-procedures. |
377 | "[ \t]*(") | |
ee30478d KH |
378 | "Regexp whose first part matches F90 intrinsic procedures.") |
379 | ||
380 | (defconst f90-operators-re | |
69658465 GM |
381 | (concat "\\." |
382 | (regexp-opt '("and" "eq" "eqv" "false" "ge" "gt" "le" "lt" "ne" | |
383 | "neqv" "not" "or" "true") t) | |
384 | "\\.") | |
ee30478d KH |
385 | "Regexp matching intrinsic operators.") |
386 | ||
387 | (defconst f90-hpf-keywords-re | |
84021009 | 388 | (regexp-opt |
ec2f376f | 389 | ;; Intrinsic procedures. |
84021009 SM |
390 | '("all_prefix" "all_scatter" "all_suffix" "any_prefix" |
391 | "any_scatter" "any_suffix" "copy_prefix" "copy_scatter" | |
392 | "copy_suffix" "count_prefix" "count_scatter" "count_suffix" | |
393 | "grade_down" "grade_up" | |
394 | "hpf_alignment" "hpf_distribution" "hpf_template" "iall" "iall_prefix" | |
395 | "iall_scatter" "iall_suffix" "iany" "iany_prefix" "iany_scatter" | |
396 | "iany_suffix" "ilen" "iparity" "iparity_prefix" | |
397 | "iparity_scatter" "iparity_suffix" "leadz" "maxval_prefix" | |
398 | "maxval_scatter" "maxval_suffix" "minval_prefix" "minval_scatter" | |
399 | "minval_suffix" "number_of_processors" "parity" | |
400 | "parity_prefix" "parity_scatter" "parity_suffix" "popcnt" "poppar" | |
401 | "processors_shape" "product_prefix" "product_scatter" | |
402 | "product_suffix" "sum_prefix" "sum_scatter" "sum_suffix" | |
ec2f376f | 403 | ;; Directives. |
84021009 | 404 | "align" "distribute" "dynamic" "independent" "inherit" "processors" |
69658465 | 405 | "realign" "redistribute" "template" |
ec2f376f | 406 | ;; Keywords. |
84021009 | 407 | "block" "cyclic" "extrinsic" "new" "onto" "pure" "with") 'words) |
ee30478d | 408 | "Regexp for all HPF keywords, procedures and directives.") |
034a9d40 | 409 | |
5ab33946 GM |
410 | (defconst f90-constants-re |
411 | (regexp-opt '( ;; F2003 iso_fortran_env constants. | |
412 | "iso_fortran_env" | |
413 | "input_unit" "output_unit" "error_unit" | |
414 | "iostat_end" "iostat_eor" | |
415 | "numeric_storage_size" "character_storage_size" | |
416 | "file_storage_size" | |
417 | ;; F2003 iso_c_binding constants. | |
418 | "iso_c_binding" | |
419 | "c_int" "c_short" "c_long" "c_long_long" "c_signed_char" | |
420 | "c_size_t" | |
421 | "c_int8_t" "c_int16_t" "c_int32_t" "c_int64_t" | |
422 | "c_int_least8_t" "c_int_least16_t" "c_int_least32_t" | |
423 | "c_int_least64_t" | |
424 | "c_int_fast8_t" "c_int_fast16_t" "c_int_fast32_t" | |
425 | "c_int_fast64_t" | |
426 | "c_intmax_t" "c_intptr_t" | |
427 | "c_float" "c_double" "c_long_double" | |
428 | "c_float_complex" "c_double_complex" "c_long_double_complex" | |
429 | "c_bool" "c_char" | |
430 | "c_null_char" "c_alert" "c_backspace" "c_form_feed" | |
431 | "c_new_line" "c_carriage_return" "c_horizontal_tab" | |
432 | "c_vertical_tab" | |
433 | "c_ptr" "c_funptr" "c_null_ptr" "c_null_funptr" | |
b1ca7740 GM |
434 | "ieee_exceptions" |
435 | "ieee_arithmetic" | |
436 | "ieee_features" | |
5ab33946 GM |
437 | ) 'words) |
438 | "Regexp for Fortran intrinsic constants.") | |
034a9d40 | 439 | |
b1ca7740 GM |
440 | ;; cf f90-looking-at-type-like. |
441 | (defun f90-typedef-matcher (limit) | |
442 | "Search for the start/end of the definition of a derived type, up to LIMIT. | |
443 | Set the match data so that subexpression 1,2 are the TYPE, and | |
444 | type-name parts, respectively." | |
445 | (let (found l) | |
446 | (while (and (re-search-forward "\\<\\(\\(?:end[ \t]*\\)?type\\)[ \t]*" | |
447 | limit t) | |
448 | (not (setq found | |
449 | (progn | |
450 | (setq l (match-data)) | |
451 | (unless (looking-at "\\(is\\>\\|(\\)") | |
452 | (when (if (looking-at "\\(\\sw+\\)") | |
453 | (goto-char (match-end 0)) | |
454 | (re-search-forward | |
455 | "[ \t]*::[ \t]*\\(\\sw+\\)" | |
456 | (line-end-position) t)) | |
457 | ;; 0 is wrong, but we don't use it. | |
458 | (set-match-data | |
459 | (append l (list (match-beginning 1) | |
460 | (match-end 1)))) | |
461 | t))))))) | |
462 | found)) | |
463 | ||
ee30478d | 464 | (defvar f90-font-lock-keywords-1 |
45d1e4d4 | 465 | (list |
ec2f376f | 466 | ;; Special highlighting of "module procedure". |
b1ca7740 GM |
467 | '("\\<\\(module[ \t]*procedure\\)\\>\\([^()\n]*::\\)?[ \t]*\\([^&!\n]*\\)" |
468 | (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t)) | |
eb9f0295 | 469 | ;; Highlight definition of derived type. |
b1ca7740 GM |
470 | ;;; '("\\<\\(\\(?:end[ \t]*\\)?type\\)\\>\\([^()\n]*::\\)?[ \t]*\\(\\sw+\\)" |
471 | ;;; (1 font-lock-keyword-face) (3 font-lock-function-name-face)) | |
472 | '(f90-typedef-matcher | |
473 | (1 font-lock-keyword-face) (2 font-lock-function-name-face)) | |
84021009 | 474 | ;; Other functions and declarations. |
5ab33946 | 475 | '("\\<\\(\\(?:end[ \t]*\\)?\\(program\\|module\\|function\\|associate\\|\ |
6fb453e1 | 476 | subroutine\\)\\|use\\|call\\)\\>[ \t]*\\(\\sw+\\)?" |
84021009 | 477 | (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t)) |
b1ca7740 GM |
478 | ;; F2003. |
479 | '("\\<\\(use\\)[ \t]*,[ \t]*\\(\\(?:non_\\)?intrinsic\\)[ \t]*::[ \t]*\ | |
480 | \\(\\sw+\\)" | |
481 | (1 font-lock-keyword-face) (2 font-lock-keyword-face) | |
482 | (3 font-lock-function-name-face)) | |
483 | "\\<\\(\\(end[ \t]*\\)?block[ \t]*data\\|contains\\|\ | |
484 | end[ \t]*interface\\)\\>" | |
485 | ;; "abstract interface" is F2003. Must come after previous entry. | |
486 | '("\\<\\(\\(?:abstract[ \t]*\\)?interface\\)\\>" | |
487 | ;; [ \t]*\\(\\(\\sw+\\)[ \t]*[^(]\\)?" | |
488 | ;; (2) messes up "interface operator ()", etc. | |
489 | (1 font-lock-keyword-face))) ;(2 font-lock-function-name-face nil t))) | |
ee30478d KH |
490 | "This does fairly subdued highlighting of comments and function calls.") |
491 | ||
b1ca7740 GM |
492 | ;; NB not explicitly handling this, yet it seems to work. |
493 | ;; type(...) function foo() | |
494 | (defun f90-typedec-matcher (limit) | |
495 | "Search for the declaration of variables of derived type, up to LIMIT. | |
496 | Set the match data so that subexpression 1,2 are the TYPE(...), | |
497 | and variable-name parts, respectively." | |
498 | ;; Matcher functions must return nil only when there are no more | |
499 | ;; matches within the search range. | |
500 | (let (found l) | |
501 | (while (and (re-search-forward "\\<\\(type\\|class\\)[ \t]*(" limit t) | |
502 | (not | |
503 | (setq found | |
504 | (condition-case nil | |
505 | (progn | |
506 | ;; Set l after this to just highlight | |
507 | ;; the "type" part. | |
508 | (backward-char 1) | |
509 | ;; Needed for: type( foo(...) ) :: bar | |
510 | (forward-sexp) | |
511 | (setq l (list (match-beginning 0) (point))) | |
512 | (skip-chars-forward " \t") | |
513 | (when | |
514 | (re-search-forward | |
515 | ;; type (foo) bar, qux | |
516 | (if (looking-at "\\sw+") | |
517 | "\\([^&!\n]+\\)" | |
518 | ;; type (foo), stuff :: bar, qux | |
519 | "::[ \t]*\\([^&!\n]+\\)") | |
520 | (line-end-position) t) | |
521 | (set-match-data | |
522 | (append (list (car l) (match-end 1)) | |
523 | l (list (match-beginning 1) | |
524 | (match-end 1)))) | |
525 | t)) | |
526 | (error nil)))))) | |
527 | found)) | |
528 | ||
ee30478d | 529 | (defvar f90-font-lock-keywords-2 |
69658465 GM |
530 | (append |
531 | f90-font-lock-keywords-1 | |
532 | (list | |
ec2f376f | 533 | ;; Variable declarations (avoid the real function call). |
b1ca7740 GM |
534 | ;; NB by accident (?), this correctly fontifies the "integer" in: |
535 | ;; integer () function foo () | |
536 | ;; because "() function foo ()" matches \\3. | |
537 | ;; The "pure" part does not really belong here, but was added to | |
538 | ;; exploit that hack. | |
539 | ;; The "function foo" bit is correctly fontified by keywords-1. | |
540 | ;; TODO ? actually check for balanced parens in that case. | |
541 | '("^[ \t0-9]*\\(?:pure\\|elemental\\)?[ \t]*\ | |
542 | \\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|\ | |
e2bd4dd4 | 543 | enumerator\\|generic\\|procedure\\|logical\\|double[ \t]*precision\\)\ |
9877fcf1 | 544 | \\(.*::\\|[ \t]*(.*)\\)?\\([^&!\n]*\\)" |
7aee8047 | 545 | (1 font-lock-type-face t) (4 font-lock-variable-name-face t)) |
b1ca7740 GM |
546 | ;; Derived type/class variables. |
547 | ;; TODO ? If we just highlighted the "type" part, rather than | |
548 | ;; "type(...)", this could be in the previous expression. And this | |
549 | ;; would be consistent with integer( kind=8 ), etc. | |
550 | '(f90-typedec-matcher | |
551 | (1 font-lock-type-face) (2 font-lock-variable-name-face)) | |
5ab33946 GM |
552 | ;; "real function foo (args)". Must override previous. Note hack |
553 | ;; to get "args" unhighlighted again. Might not always be right, | |
554 | ;; but probably better than leaving them as variables. | |
b1ca7740 | 555 | ;; NB not explicitly handling this case: |
5ab33946 | 556 | ;; integer( kind=1 ) function foo() |
b1ca7740 GM |
557 | ;; thanks to the happy accident described above. |
558 | ;; Not anchored, so don't need to worry about "pure" etc. | |
5ab33946 GM |
559 | '("\\<\\(\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|\ |
560 | logical\\|double[ \t]*precision\\|\ | |
561 | \\(?:type\\|class\\)[ \t]*([ \t]*\\sw+[ \t]*)\\)[ \t]*\\)\ | |
562 | \\(function\\)\\>[ \t]*\\(\\sw+\\)[ \t]*\\(([^&!\n]*)\\)" | |
563 | (1 font-lock-type-face t) (4 font-lock-keyword-face t) | |
564 | (5 font-lock-function-name-face t) (6 'default t)) | |
b1ca7740 GM |
565 | ;; enum (F2003; cf type in -1). |
566 | '("\\<\\(enum\\)\\>\\([^()\n]*::\\)?[ \t]*\\(\\sw+\\)" | |
567 | (1 font-lock-keyword-face) (3 font-lock-function-name-face)) | |
568 | ;; end do, enum (F2003), if, select, where, and forall constructs. | |
5ab33946 | 569 | '("\\<\\(end[ \t]*\\(do\\|if\\|enum\\|select\\|forall\\|where\\)\\)\\>\ |
69658465 GM |
570 | \\([ \t]+\\(\\sw+\\)\\)?" |
571 | (1 font-lock-keyword-face) (3 font-lock-constant-face nil t)) | |
b1ca7740 | 572 | '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)?\\(\\(if\\|\ |
5ab33946 GM |
573 | do\\([ \t]*while\\)?\\|select[ \t]*\\(?:case\\|type\\)\\|where\\|\ |
574 | forall\\)\\)\\>" | |
69658465 | 575 | (2 font-lock-constant-face nil t) (3 font-lock-keyword-face)) |
ec2f376f | 576 | ;; Implicit declaration. |
69658465 | 577 | '("\\<\\(implicit\\)[ \t]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\ |
5ab33946 GM |
578 | \\|enumerator\\|procedure\\|\ |
579 | logical\\|double[ \t]*precision\\|type[ \t]*(\\sw+)\\|none\\)[ \t]*" | |
69658465 GM |
580 | (1 font-lock-keyword-face) (2 font-lock-type-face)) |
581 | '("\\<\\(namelist\\|common\\)[ \t]*\/\\(\\sw+\\)?\/" | |
582 | (1 font-lock-keyword-face) (2 font-lock-constant-face nil t)) | |
583 | "\\<else\\([ \t]*if\\|where\\)?\\>" | |
7aee8047 | 584 | '("\\(&\\)[ \t]*\\(!\\|$\\)" (1 font-lock-keyword-face)) |
69658465 GM |
585 | "\\<\\(then\\|continue\\|format\\|include\\|stop\\|return\\)\\>" |
586 | '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)?\\>" | |
587 | (1 font-lock-keyword-face) (2 font-lock-constant-face nil t)) | |
588 | '("\\<\\(case\\)[ \t]*\\(default\\|(\\)" . 1) | |
5ab33946 GM |
589 | ;; F2003 "class default". |
590 | '("\\<\\(class\\)[ \t]*default" . 1) | |
591 | ;; F2003 "type is" in a "select type" block. | |
592 | '("\\<\\(\\(type\\|class\\)[ \t]*is\\)[ \t]*(" (1 font-lock-keyword-face t)) | |
593 | '("\\<\\(do\\|go[ \t]*to\\)\\>[ \t]*\\([0-9]+\\)" | |
69658465 | 594 | (1 font-lock-keyword-face) (2 font-lock-constant-face)) |
f14ca250 | 595 | ;; Line numbers (lines whose first character after number is letter). |
69658465 | 596 | '("^[ \t]*\\([0-9]+\\)[ \t]*[a-z]+" (1 font-lock-constant-face t)))) |
87ee2359 | 597 | "Highlights declarations, do-loops and other constructs.") |
ee30478d KH |
598 | |
599 | (defvar f90-font-lock-keywords-3 | |
600 | (append f90-font-lock-keywords-2 | |
69658465 GM |
601 | (list |
602 | f90-keywords-level-3-re | |
603 | f90-operators-re | |
604 | (list f90-procedures-re '(1 font-lock-keyword-face keep)) | |
640f9e26 | 605 | "\\<real\\>" ; avoid overwriting real defs |
5ab33946 | 606 | ;; As an attribute, but not as an optional argument. |
599aeab9 | 607 | '("\\<\\(asynchronous\\)[ \t]*[^=]" . 1))) |
ee30478d KH |
608 | "Highlights all F90 keywords and intrinsic procedures.") |
609 | ||
610 | (defvar f90-font-lock-keywords-4 | |
611 | (append f90-font-lock-keywords-3 | |
5ab33946 GM |
612 | (list (cons f90-constants-re 'font-lock-constant-face) |
613 | f90-hpf-keywords-re)) | |
614 | "Highlights all F90 and HPF keywords and constants.") | |
ee30478d KH |
615 | |
616 | (defvar f90-font-lock-keywords | |
87ee2359 | 617 | f90-font-lock-keywords-2 |
0ee7f068 GM |
618 | "*Default expressions to highlight in F90 mode. |
619 | Can be overridden by the value of `font-lock-maximum-decoration'.") | |
034a9d40 | 620 | |
ec2f376f | 621 | |
70186f7f GM |
622 | (defvar f90-mode-syntax-table |
623 | (let ((table (make-syntax-table))) | |
624 | (modify-syntax-entry ?\! "<" table) ; begin comment | |
625 | (modify-syntax-entry ?\n ">" table) ; end comment | |
626 | (modify-syntax-entry ?_ "w" table) ; underscore in names | |
627 | (modify-syntax-entry ?\' "\"" table) ; string quote | |
628 | (modify-syntax-entry ?\" "\"" table) ; string quote | |
629 | (modify-syntax-entry ?\` "w" table) ; for abbrevs | |
630 | (modify-syntax-entry ?\r " " table) ; return is whitespace | |
631 | (modify-syntax-entry ?+ "." table) ; punctuation | |
632 | (modify-syntax-entry ?- "." table) | |
633 | (modify-syntax-entry ?= "." table) | |
634 | (modify-syntax-entry ?* "." table) | |
635 | (modify-syntax-entry ?/ "." table) | |
784d007b GM |
636 | ;; I think that the f95 standard leaves the behaviour of \ |
637 | ;; unspecified, but that f2k will require it to be non-special. | |
638 | ;; Use `f90-backslash-not-special' to change. | |
70186f7f GM |
639 | (modify-syntax-entry ?\\ "\\" table) ; escape chars |
640 | table) | |
641 | "Syntax table used in F90 mode.") | |
642 | ||
643 | (defvar f90-mode-map | |
644 | (let ((map (make-sparse-keymap))) | |
645 | (define-key map "`" 'f90-abbrev-start) | |
646 | (define-key map "\C-c;" 'f90-comment-region) | |
647 | (define-key map "\C-\M-a" 'f90-beginning-of-subprogram) | |
648 | (define-key map "\C-\M-e" 'f90-end-of-subprogram) | |
649 | (define-key map "\C-\M-h" 'f90-mark-subprogram) | |
6f1d50da GM |
650 | (define-key map "\C-\M-n" 'f90-end-of-block) |
651 | (define-key map "\C-\M-p" 'f90-beginning-of-block) | |
70186f7f GM |
652 | (define-key map "\C-\M-q" 'f90-indent-subprogram) |
653 | (define-key map "\C-j" 'f90-indent-new-line) ; LFD equals C-j | |
654 | (define-key map "\r" 'newline) | |
655 | (define-key map "\C-c\r" 'f90-break-line) | |
656 | ;;; (define-key map [M-return] 'f90-break-line) | |
76bccf35 GM |
657 | (define-key map "\C-c\C-a" 'f90-previous-block) |
658 | (define-key map "\C-c\C-e" 'f90-next-block) | |
70186f7f GM |
659 | (define-key map "\C-c\C-d" 'f90-join-lines) |
660 | (define-key map "\C-c\C-f" 'f90-fill-region) | |
661 | (define-key map "\C-c\C-p" 'f90-previous-statement) | |
662 | (define-key map "\C-c\C-n" 'f90-next-statement) | |
663 | (define-key map "\C-c\C-w" 'f90-insert-end) | |
664 | (define-key map "\t" 'f90-indent-line) | |
665 | (define-key map "," 'f90-electric-insert) | |
666 | (define-key map "+" 'f90-electric-insert) | |
667 | (define-key map "-" 'f90-electric-insert) | |
668 | (define-key map "*" 'f90-electric-insert) | |
669 | (define-key map "/" 'f90-electric-insert) | |
a729409a GM |
670 | |
671 | (easy-menu-define f90-menu map "Menu for F90 mode." | |
672 | `("F90" | |
673 | ("Customization" | |
674 | ,(custom-menu-create 'f90) | |
675 | ["Set" Custom-set t] | |
676 | ["Save" Custom-save t] | |
677 | ["Reset to Current" Custom-reset-current t] | |
678 | ["Reset to Saved" Custom-reset-saved t] | |
679 | ["Reset to Standard Settings" Custom-reset-standard t] | |
680 | ) | |
681 | "--" | |
682 | ["Indent Subprogram" f90-indent-subprogram t] | |
683 | ["Mark Subprogram" f90-mark-subprogram t] | |
684 | ["Beginning of Subprogram" f90-beginning-of-subprogram t] | |
685 | ["End of Subprogram" f90-end-of-subprogram t] | |
686 | "--" | |
687 | ["(Un)Comment Region" f90-comment-region mark-active] | |
688 | ["Indent Region" f90-indent-region mark-active] | |
689 | ["Fill Region" f90-fill-region mark-active] | |
690 | "--" | |
691 | ["Break Line at Point" f90-break-line t] | |
692 | ["Join with Previous Line" f90-join-lines t] | |
693 | ["Insert Block End" f90-insert-end t] | |
694 | "--" | |
695 | ("Highlighting" | |
696 | ["Toggle font-lock-mode" font-lock-mode :selected font-lock-mode | |
697 | :style toggle] | |
698 | "--" | |
699 | ["Light highlighting (level 1)" f90-font-lock-1 t] | |
700 | ["Moderate highlighting (level 2)" f90-font-lock-2 t] | |
701 | ["Heavy highlighting (level 3)" f90-font-lock-3 t] | |
702 | ["Maximum highlighting (level 4)" f90-font-lock-4 t] | |
703 | ) | |
704 | ("Change Keyword Case" | |
705 | ["Upcase Keywords (buffer)" f90-upcase-keywords t] | |
706 | ["Capitalize Keywords (buffer)" f90-capitalize-keywords t] | |
707 | ["Downcase Keywords (buffer)" f90-downcase-keywords t] | |
708 | "--" | |
709 | ["Upcase Keywords (region)" f90-upcase-region-keywords | |
710 | mark-active] | |
711 | ["Capitalize Keywords (region)" f90-capitalize-region-keywords | |
712 | mark-active] | |
713 | ["Downcase Keywords (region)" f90-downcase-region-keywords | |
714 | mark-active] | |
715 | ) | |
716 | "--" | |
717 | ["Toggle auto-fill" auto-fill-mode :selected auto-fill-function | |
718 | :style toggle] | |
719 | ["Toggle abbrev-mode" abbrev-mode :selected abbrev-mode | |
720 | :style toggle] | |
721 | ["Add imenu Menu" f90-add-imenu-menu | |
722 | :active (not (lookup-key (current-local-map) [menu-bar index])) | |
723 | :included (fboundp 'imenu-add-to-menubar)])) | |
70186f7f | 724 | map) |
034a9d40 | 725 | "Keymap used in F90 mode.") |
ee30478d | 726 | |
b974df0a | 727 | |
599aeab9 GM |
728 | (defun f90-font-lock-n (n) |
729 | "Set `font-lock-keywords' to F90 level N keywords." | |
730 | (font-lock-mode 1) | |
731 | (setq font-lock-keywords | |
732 | (symbol-value (intern-soft (format "f90-font-lock-keywords-%d" n)))) | |
733 | (font-lock-fontify-buffer)) | |
734 | ||
1a341882 GM |
735 | (defun f90-font-lock-1 () |
736 | "Set `font-lock-keywords' to `f90-font-lock-keywords-1'." | |
737 | (interactive) | |
599aeab9 | 738 | (f90-font-lock-n 1)) |
1a341882 GM |
739 | |
740 | (defun f90-font-lock-2 () | |
741 | "Set `font-lock-keywords' to `f90-font-lock-keywords-2'." | |
742 | (interactive) | |
599aeab9 | 743 | (f90-font-lock-n 2)) |
1a341882 GM |
744 | |
745 | (defun f90-font-lock-3 () | |
746 | "Set `font-lock-keywords' to `f90-font-lock-keywords-3'." | |
747 | (interactive) | |
599aeab9 | 748 | (f90-font-lock-n 3)) |
1a341882 GM |
749 | |
750 | (defun f90-font-lock-4 () | |
751 | "Set `font-lock-keywords' to `f90-font-lock-keywords-4'." | |
752 | (interactive) | |
599aeab9 | 753 | (f90-font-lock-n 4)) |
1a341882 | 754 | \f |
ee30478d | 755 | ;; Regexps for finding program structures. |
69658465 | 756 | (defconst f90-blocks-re |
ec2f376f GM |
757 | (concat "\\(block[ \t]*data\\|" |
758 | (regexp-opt '("do" "if" "interface" "function" "module" "program" | |
5ab33946 GM |
759 | "select" "subroutine" "type" "where" "forall" |
760 | ;; F2003. | |
761 | "enum" "associate")) | |
ec2f376f GM |
762 | "\\)\\>") |
763 | "Regexp potentially indicating a \"block\" of F90 code.") | |
764 | ||
69658465 | 765 | (defconst f90-program-block-re |
ec2f376f GM |
766 | (regexp-opt '("program" "module" "subroutine" "function") 'paren) |
767 | "Regexp used to locate the start/end of a \"subprogram\".") | |
768 | ||
5ab33946 | 769 | ;; "class is" is F2003. |
69658465 | 770 | (defconst f90-else-like-re |
5ab33946 GM |
771 | "\\(else\\([ \t]*if\\|where\\)?\\|case[ \t]*\\(default\\|(\\)\\|\ |
772 | \\(class\\|type\\)[ \t]*is[ \t]*(\\|class[ \t]*default\\)" | |
773 | "Regexp matching an ELSE IF, ELSEWHERE, CASE, CLASS/TYPE IS statement.") | |
ec2f376f | 774 | |
69658465 | 775 | (defconst f90-end-if-re |
ec2f376f GM |
776 | (concat "end[ \t]*" |
777 | (regexp-opt '("if" "select" "where" "forall") 'paren) | |
778 | "\\>") | |
779 | "Regexp matching the end of an IF, SELECT, WHERE, FORALL block.") | |
780 | ||
69658465 | 781 | (defconst f90-end-type-re |
5ab33946 GM |
782 | "end[ \t]*\\(type\\|enum\\|interface\\|block[ \t]*data\\)\\>" |
783 | "Regexp matching the end of a TYPE, ENUM, INTERFACE, BLOCK DATA section.") | |
784 | ||
785 | (defconst f90-end-associate-re | |
786 | "end[ \t]*associate\\>" | |
787 | "Regexp matching the end of an ASSOCIATE block.") | |
ec2f376f | 788 | |
5ab33946 GM |
789 | ;; This is for a TYPE block, not a variable of derived TYPE. |
790 | ;; Hence no need to add CLASS for F2003. | |
ee30478d | 791 | (defconst f90-type-def-re |
5ab33946 GM |
792 | ;; type word |
793 | ;; type :: word | |
794 | ;; type, stuff :: word | |
795 | ;; NOT "type (" | |
eb9f0295 | 796 | "\\<\\(type\\)\\>\\(?:[^()\n]*::\\)?[ \t]*\\(\\sw+\\)" |
e7272ece | 797 | "Regexp matching the definition of a derived type.") |
ec2f376f | 798 | |
5ab33946 GM |
799 | (defconst f90-typeis-re |
800 | "\\<\\(class\\|type\\)[ \t]*is[ \t]*(" | |
801 | "Regexp matching a CLASS/TYPE IS statement.") | |
802 | ||
ec2f376f | 803 | (defconst f90-no-break-re |
6f43f690 GM |
804 | (regexp-opt '("**" "//" "=>" ">=" "<=" "==" "/=") 'paren) |
805 | "Regexp specifying where not to break lines when filling. | |
806 | This regexp matches certain tokens comprised entirely of | |
807 | characters matching the regexp `f90-break-delimiters' that should | |
808 | not be split by filling. Each element is assumed to be two | |
809 | characters long.") | |
ec2f376f GM |
810 | |
811 | (defvar f90-cache-position nil | |
812 | "Temporary position used to speed up region operations.") | |
034a9d40 | 813 | (make-variable-buffer-local 'f90-cache-position) |
ec2f376f | 814 | |
b974df0a | 815 | \f |
799dee7a GM |
816 | ;; Hideshow support. |
817 | (defconst f90-end-block-re | |
fcca5273 | 818 | (concat "^[ \t0-9]*\\<end[ \t]*" |
799dee7a | 819 | (regexp-opt '("do" "if" "forall" "function" "interface" |
fcca5273 | 820 | "module" "program" "select" "subroutine" |
5ab33946 GM |
821 | "type" "where" "enum" "associate") t) |
822 | "\\>") | |
fcca5273 | 823 | "Regexp matching the end of an F90 \"block\", from the line start. |
799dee7a GM |
824 | Used in the F90 entry in `hs-special-modes-alist'.") |
825 | ||
826 | ;; Ignore the fact that FUNCTION, SUBROUTINE, WHERE, FORALL have a | |
fcca5273 | 827 | ;; following "(". DO, CASE, IF can have labels. |
799dee7a GM |
828 | (defconst f90-start-block-re |
829 | (concat | |
830 | "^[ \t0-9]*" ; statement number | |
831 | "\\(\\(" | |
832 | "\\(\\sw+[ \t]*:[ \t]*\\)?" ; structure label | |
5ab33946 | 833 | "\\(do\\|select[ \t]*\\(case\\|type\\)\\|" |
fcca5273 GM |
834 | ;; See comments in fortran-start-block-re for the problems of IF. |
835 | "if[ \t]*(\\(.*\\|" | |
836 | ".*\n\\([^if]*\\([^i].\\|.[^f]\\|.\\>\\)\\)\\)\\<then\\|" | |
799dee7a GM |
837 | ;; Distinguish WHERE block from isolated WHERE. |
838 | "\\(where\\|forall\\)[ \t]*(.*)[ \t]*\\(!\\|$\\)\\)\\)" | |
839 | "\\|" | |
5ab33946 GM |
840 | ;; Avoid F2003 "type is" in "select type", |
841 | ;; and also variables of derived type "type (foo)". | |
842 | ;; "type, foo" must be a block (?). | |
b1ca7740 GM |
843 | "type[ \t,]\\(" |
844 | "[^i(!\n\"\& \t]\\|" ; not-i( | |
845 | "i[^s!\n\"\& \t]\\|" ; i not-s | |
846 | "is\\sw\\)\\|" | |
5ab33946 | 847 | ;; "abstract interface" is F2003. |
b1ca7740 | 848 | "program\\|\\(?:abstract[ \t]*\\)?interface\\|module\\|" |
5ab33946 GM |
849 | ;; "enum", but not "enumerator". |
850 | "function\\|subroutine\\|enum[^e]\\|associate" | |
799dee7a GM |
851 | "\\)" |
852 | "[ \t]*") | |
fcca5273 | 853 | "Regexp matching the start of an F90 \"block\", from the line start. |
799dee7a GM |
854 | A simple regexp cannot do this in fully correct fashion, so this |
855 | tries to strike a compromise between complexity and flexibility. | |
856 | Used in the F90 entry in `hs-special-modes-alist'.") | |
857 | ||
858 | ;; hs-special-modes-alist is autoloaded. | |
859 | (add-to-list 'hs-special-modes-alist | |
860 | `(f90-mode ,f90-start-block-re ,f90-end-block-re | |
861 | "!" f90-end-of-block nil)) | |
862 | ||
863 | \f | |
ec2f376f | 864 | ;; Imenu support. |
b1ca7740 GM |
865 | ;; FIXME trivial to extend this to enum. Worth it? |
866 | (defun f90-imenu-type-matcher () | |
867 | "Search backward for the start of a derived type. | |
868 | Set subexpression 1 in the match-data to the name of the type." | |
869 | (let (found l) | |
870 | (while (and (re-search-backward "^[ \t0-9]*type[ \t]*" nil t) | |
871 | (not (setq found | |
872 | (save-excursion | |
873 | (goto-char (match-end 0)) | |
874 | (unless (looking-at "\\(is\\>\\|(\\)") | |
875 | (or (looking-at "\\(\\sw+\\)") | |
876 | (re-search-forward | |
877 | "[ \t]*::[ \t]*\\(\\sw+\\)" | |
878 | (line-end-position) t)))))))) | |
879 | found)) | |
880 | ||
ee30478d | 881 | (defvar f90-imenu-generic-expression |
b974df0a | 882 | (let ((good-char "[^!\"\&\n \t]") (not-e "[^e!\n\"\& \t]") |
b1ca7740 GM |
883 | (not-n "[^n!\n\"\& \t]") (not-d "[^d!\n\"\& \t]") |
884 | (not-ib "[^i(!\n\"\& \t]") (not-s "[^s!\n\"\& \t]")) | |
b974df0a EN |
885 | (list |
886 | '(nil "^[ \t0-9]*program[ \t]+\\(\\sw+\\)" 1) | |
887 | '("Modules" "^[ \t0-9]*module[ \t]+\\(\\sw+\\)[ \t]*\\(!\\|$\\)" 1) | |
b1ca7740 GM |
888 | (list "Types" 'f90-imenu-type-matcher 1) |
889 | ;; Does not handle: "type[, stuff] :: foo". | |
890 | ;;; (format "^[ \t0-9]*type[ \t]+\\(\\(%s\\|i%s\\|is\\sw\\)\\sw*\\)" | |
891 | ;;; not-ib not-s) | |
892 | ;;; 1) | |
893 | ;; Can't get the subexpression numbers to match in the two branches. | |
894 | ;;; (format "^[ \t0-9]*type\\([ \t]*,.*\\(::\\)[ \t]*\\(\\sw+\\)\\|[ \t]+\\(\\(%s\\|i%s\\|is\\sw\\)\\sw*\\)\\)" not-ib not-s) | |
895 | ;;; 3) | |
b974df0a | 896 | (list |
69658465 | 897 | "Procedures" |
b974df0a EN |
898 | (concat |
899 | "^[ \t0-9]*" | |
900 | "\\(" | |
ec2f376f GM |
901 | ;; At least three non-space characters before function/subroutine. |
902 | ;; Check that the last three non-space characters do not spell E N D. | |
b974df0a EN |
903 | "[^!\"\&\n]*\\(" |
904 | not-e good-char good-char "\\|" | |
905 | good-char not-n good-char "\\|" | |
906 | good-char good-char not-d "\\)" | |
907 | "\\|" | |
ec2f376f | 908 | ;; Less than three non-space characters before function/subroutine. |
b974df0a EN |
909 | good-char "?" good-char "?" |
910 | "\\)" | |
911 | "[ \t]*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)") | |
69658465 | 912 | 4))) |
a729409a | 913 | "Value for `imenu-generic-expression' in F90 mode.") |
ee30478d | 914 | |
b974df0a | 915 | (defun f90-add-imenu-menu () |
b974df0a | 916 | "Add an imenu menu to the menubar." |
87ee2359 | 917 | (interactive) |
34ba7e3d | 918 | (if (lookup-key (current-local-map) [menu-bar index]) |
5c2a80ad GM |
919 | (message "%s" "F90-imenu already exists.") |
920 | (imenu-add-to-menubar "F90-imenu") | |
901e8d1d | 921 | (redraw-frame (selected-frame)))) |
b974df0a | 922 | |
034a9d40 | 923 | \f |
ec2f376f | 924 | ;; Abbrevs have generally two letters, except standard types `c, `i, `r, `t. |
4f9fc702 | 925 | (defvar f90-mode-abbrev-table |
0761b294 | 926 | (progn |
0ee7f068 | 927 | (define-abbrev-table 'f90-mode-abbrev-table nil) |
4f9fc702 GM |
928 | f90-mode-abbrev-table) |
929 | "Abbrev table for F90 mode.") | |
d2d15846 | 930 | |
599aeab9 GM |
931 | ;; Not in defvar because user abbrevs may be restored before this file loads. |
932 | (mapc | |
933 | (lambda (e) | |
934 | (condition-case nil | |
935 | (define-abbrev f90-mode-abbrev-table (car e) (cdr e) nil :count 0 | |
936 | :system t) | |
937 | (wrong-number-of-arguments ; Emacs 22 | |
938 | (define-abbrev f90-mode-abbrev-table (car e) (cdr e) nil 0 t)))) | |
939 | '(("`al" . "allocate" ) | |
940 | ("`ab" . "allocatable" ) | |
941 | ("`ai" . "abstract interface") | |
942 | ("`as" . "assignment" ) | |
943 | ("`asy" . "asynchronous" ) | |
944 | ("`ba" . "backspace" ) | |
945 | ("`bd" . "block data" ) | |
946 | ("`c" . "character" ) | |
947 | ("`cl" . "close" ) | |
948 | ("`cm" . "common" ) | |
949 | ("`cx" . "complex" ) | |
950 | ("`cn" . "contains" ) | |
951 | ("`cy" . "cycle" ) | |
952 | ("`de" . "deallocate" ) | |
953 | ("`df" . "define" ) | |
954 | ("`di" . "dimension" ) | |
955 | ("`dp" . "double precision") | |
956 | ("`dw" . "do while" ) | |
957 | ("`el" . "else" ) | |
958 | ("`eli" . "else if" ) | |
959 | ("`elw" . "elsewhere" ) | |
960 | ("`em" . "elemental" ) | |
961 | ("`e" . "enumerator" ) | |
962 | ("`eq" . "equivalence" ) | |
963 | ("`ex" . "external" ) | |
964 | ("`ey" . "entry" ) | |
965 | ("`fl" . "forall" ) | |
966 | ("`fo" . "format" ) | |
967 | ("`fu" . "function" ) | |
968 | ("`fa" . ".false." ) | |
969 | ("`im" . "implicit none") | |
970 | ("`in" . "include" ) | |
971 | ("`i" . "integer" ) | |
972 | ("`it" . "intent" ) | |
973 | ("`if" . "interface" ) | |
974 | ("`lo" . "logical" ) | |
975 | ("`mo" . "module" ) | |
976 | ("`na" . "namelist" ) | |
977 | ("`nu" . "nullify" ) | |
978 | ("`op" . "optional" ) | |
979 | ("`pa" . "parameter" ) | |
980 | ("`po" . "pointer" ) | |
981 | ("`pr" . "print" ) | |
982 | ("`pi" . "private" ) | |
983 | ("`pm" . "program" ) | |
984 | ("`pr" . "protected" ) | |
985 | ("`pu" . "public" ) | |
986 | ("`r" . "real" ) | |
987 | ("`rc" . "recursive" ) | |
988 | ("`rt" . "return" ) | |
989 | ("`rw" . "rewind" ) | |
990 | ("`se" . "select" ) | |
991 | ("`sq" . "sequence" ) | |
992 | ("`su" . "subroutine" ) | |
993 | ("`ta" . "target" ) | |
994 | ("`tr" . ".true." ) | |
995 | ("`t" . "type" ) | |
996 | ("`vo" . "volatile" ) | |
997 | ("`wh" . "where" ) | |
998 | ("`wr" . "write" ))) | |
0761b294 GM |
999 | |
1000 | \f | |
034a9d40 RS |
1001 | ;;;###autoload |
1002 | (defun f90-mode () | |
87ee2359 | 1003 | "Major mode for editing Fortran 90,95 code in free format. |
a729409a | 1004 | For fixed format code, use `fortran-mode'. |
034a9d40 | 1005 | |
a729409a | 1006 | \\[f90-indent-line] indents the current line. |
ec2f376f | 1007 | \\[f90-indent-new-line] indents current line and creates a new\ |
034a9d40 | 1008 | indented line. |
87ee2359 | 1009 | \\[f90-indent-subprogram] indents the current subprogram. |
034a9d40 RS |
1010 | |
1011 | Type `? or `\\[help-command] to display a list of built-in\ | |
1012 | abbrevs for F90 keywords. | |
1013 | ||
1014 | Key definitions: | |
1015 | \\{f90-mode-map} | |
1016 | ||
1017 | Variables controlling indentation style and extra features: | |
1018 | ||
ec2f376f GM |
1019 | `f90-do-indent' |
1020 | Extra indentation within do blocks (default 3). | |
1021 | `f90-if-indent' | |
5ab33946 | 1022 | Extra indentation within if/select/where/forall blocks (default 3). |
ec2f376f | 1023 | `f90-type-indent' |
5ab33946 | 1024 | Extra indentation within type/enum/interface/block-data blocks (default 3). |
ec2f376f GM |
1025 | `f90-program-indent' |
1026 | Extra indentation within program/module/subroutine/function blocks | |
1027 | (default 2). | |
1028 | `f90-continuation-indent' | |
1029 | Extra indentation applied to continuation lines (default 5). | |
1030 | `f90-comment-region' | |
e3f5ce56 GM |
1031 | String inserted by function \\[f90-comment-region] at start of each |
1032 | line in region (default \"!!!$\"). | |
ec2f376f GM |
1033 | `f90-indented-comment-re' |
1034 | Regexp determining the type of comment to be intended like code | |
1035 | (default \"!\"). | |
1036 | `f90-directive-comment-re' | |
1037 | Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented | |
1038 | (default \"!hpf\\\\$\"). | |
1039 | `f90-break-delimiters' | |
1040 | Regexp holding list of delimiters at which lines may be broken | |
1041 | (default \"[-+*/><=,% \\t]\"). | |
1042 | `f90-break-before-delimiters' | |
1043 | Non-nil causes `f90-do-auto-fill' to break lines before delimiters | |
1044 | (default t). | |
1045 | `f90-beginning-ampersand' | |
1046 | Automatic insertion of \& at beginning of continuation lines (default t). | |
1047 | `f90-smart-end' | |
1048 | From an END statement, check and fill the end using matching block start. | |
1049 | Allowed values are 'blink, 'no-blink, and nil, which determine | |
1050 | whether to blink the matching beginning (default 'blink). | |
1051 | `f90-auto-keyword-case' | |
1052 | Automatic change of case of keywords (default nil). | |
1053 | The possibilities are 'downcase-word, 'upcase-word, 'capitalize-word. | |
1054 | `f90-leave-line-no' | |
1055 | Do not left-justify line numbers (default nil). | |
034a9d40 RS |
1056 | |
1057 | Turning on F90 mode calls the value of the variable `f90-mode-hook' | |
1058 | with no args, if that value is non-nil." | |
1059 | (interactive) | |
1060 | (kill-all-local-variables) | |
e3f5ce56 GM |
1061 | (setq major-mode 'f90-mode |
1062 | mode-name "F90" | |
1063 | local-abbrev-table f90-mode-abbrev-table) | |
034a9d40 RS |
1064 | (set-syntax-table f90-mode-syntax-table) |
1065 | (use-local-map f90-mode-map) | |
e3f5ce56 GM |
1066 | (set (make-local-variable 'indent-line-function) 'f90-indent-line) |
1067 | (set (make-local-variable 'indent-region-function) 'f90-indent-region) | |
722d3132 | 1068 | (set (make-local-variable 'require-final-newline) mode-require-final-newline) |
e3f5ce56 GM |
1069 | (set (make-local-variable 'comment-start) "!") |
1070 | (set (make-local-variable 'comment-start-skip) "!+ *") | |
1071 | (set (make-local-variable 'comment-indent-function) 'f90-comment-indent) | |
1072 | (set (make-local-variable 'abbrev-all-caps) t) | |
1073 | (set (make-local-variable 'normal-auto-fill-function) 'f90-do-auto-fill) | |
70186f7f | 1074 | (setq indent-tabs-mode nil) ; auto buffer local |
e3f5ce56 GM |
1075 | (set (make-local-variable 'font-lock-defaults) |
1076 | '((f90-font-lock-keywords f90-font-lock-keywords-1 | |
1077 | f90-font-lock-keywords-2 | |
1078 | f90-font-lock-keywords-3 | |
1079 | f90-font-lock-keywords-4) | |
1080 | nil t)) | |
45d1e4d4 | 1081 | (set (make-local-variable 'imenu-case-fold-search) t) |
e3f5ce56 | 1082 | (set (make-local-variable 'imenu-generic-expression) |
a729409a GM |
1083 | f90-imenu-generic-expression) |
1084 | (set (make-local-variable 'beginning-of-defun-function) | |
1085 | 'f90-beginning-of-subprogram) | |
1086 | (set (make-local-variable 'end-of-defun-function) 'f90-end-of-subprogram) | |
d2d15846 DL |
1087 | (set (make-local-variable 'add-log-current-defun-function) |
1088 | #'f90-current-defun) | |
9a969196 | 1089 | (run-mode-hooks 'f90-mode-hook)) |
ec2f376f | 1090 | |
034a9d40 | 1091 | \f |
ec2f376f | 1092 | ;; Inline-functions. |
034a9d40 | 1093 | (defsubst f90-in-string () |
d14e6bbe | 1094 | "Return non-nil if point is inside a string. |
ec2f376f | 1095 | Checks from `point-min', or `f90-cache-position', if that is non-nil |
d14e6bbe | 1096 | and lies before point." |
034a9d40 | 1097 | (let ((beg-pnt |
640f9e26 GM |
1098 | (if (and f90-cache-position (> (point) f90-cache-position)) |
1099 | f90-cache-position | |
1100 | (point-min)))) | |
034a9d40 | 1101 | (nth 3 (parse-partial-sexp beg-pnt (point))))) |
69658465 | 1102 | |
034a9d40 | 1103 | (defsubst f90-in-comment () |
d14e6bbe | 1104 | "Return non-nil if point is inside a comment. |
ec2f376f | 1105 | Checks from `point-min', or `f90-cache-position', if that is non-nil |
d14e6bbe | 1106 | and lies before point." |
034a9d40 | 1107 | (let ((beg-pnt |
640f9e26 GM |
1108 | (if (and f90-cache-position (> (point) f90-cache-position)) |
1109 | f90-cache-position | |
1110 | (point-min)))) | |
034a9d40 RS |
1111 | (nth 4 (parse-partial-sexp beg-pnt (point))))) |
1112 | ||
1113 | (defsubst f90-line-continued () | |
d14e6bbe GM |
1114 | "Return t if the current line is a continued one. |
1115 | This includes comment lines embedded in continued lines, but | |
1116 | not the last line of a continued statement." | |
034a9d40 | 1117 | (save-excursion |
6734e165 GM |
1118 | (beginning-of-line) |
1119 | (while (and (looking-at "[ \t]*\\(!\\|$\\)") (zerop (forward-line -1)))) | |
e3f5ce56 GM |
1120 | (end-of-line) |
1121 | (while (f90-in-comment) | |
1122 | (search-backward "!" (line-beginning-position)) | |
1123 | (skip-chars-backward "!")) | |
1124 | (skip-chars-backward " \t") | |
1125 | (= (preceding-char) ?&))) | |
034a9d40 | 1126 | |
748dd5a8 GM |
1127 | ;; GM this is not right, eg a continuation line starting with a number. |
1128 | ;; Need f90-code-start-position function. | |
1129 | ;; And yet, things seems to work with this... | |
7aee8047 GM |
1130 | ;; cf f90-indent-line |
1131 | ;; (beginning-of-line) ; digits after & \n are not line-nos | |
1132 | ;; (if (not (save-excursion (and (f90-previous-statement) | |
1133 | ;; (f90-line-continued)))) | |
1134 | ;; (f90-indent-line-no) | |
034a9d40 RS |
1135 | (defsubst f90-current-indentation () |
1136 | "Return indentation of current line. | |
1137 | Line-numbers are considered whitespace characters." | |
e3f5ce56 | 1138 | (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9"))) |
034a9d40 RS |
1139 | |
1140 | (defsubst f90-indent-to (col &optional no-line-number) | |
1141 | "Indent current line to column COL. | |
d14e6bbe GM |
1142 | If optional argument NO-LINE-NUMBER is nil, jump over a possible |
1143 | line-number before indenting." | |
034a9d40 | 1144 | (beginning-of-line) |
748dd5a8 | 1145 | (or no-line-number |
034a9d40 RS |
1146 | (skip-chars-forward " \t0-9")) |
1147 | (delete-horizontal-space) | |
748dd5a8 GM |
1148 | ;; Leave >= 1 space after line number. |
1149 | (indent-to col (if (zerop (current-column)) 0 1))) | |
034a9d40 | 1150 | |
034a9d40 | 1151 | (defsubst f90-get-present-comment-type () |
d14e6bbe | 1152 | "If point lies within a comment, return the string starting the comment. |
718d0706 GM |
1153 | For example, \"!\" or \"!!\", followed by the appropriate amount of |
1154 | whitespace, if any." | |
1155 | ;; Include the whitespace for consistent auto-filling of comment blocks. | |
034a9d40 | 1156 | (save-excursion |
e3f5ce56 GM |
1157 | (when (f90-in-comment) |
1158 | (beginning-of-line) | |
718d0706 | 1159 | (re-search-forward "!+[ \t]*" (line-end-position)) |
e3f5ce56 | 1160 | (while (f90-in-string) |
718d0706 GM |
1161 | (re-search-forward "!+[ \t]*" (line-end-position))) |
1162 | (match-string-no-properties 0)))) | |
034a9d40 RS |
1163 | |
1164 | (defsubst f90-equal-symbols (a b) | |
ec2f376f | 1165 | "Compare strings A and B neglecting case and allowing for nil value." |
f14ca250 GM |
1166 | (equal (if a (downcase a) nil) |
1167 | (if b (downcase b) nil))) | |
034a9d40 | 1168 | |
034a9d40 | 1169 | (defsubst f90-looking-at-do () |
d14e6bbe GM |
1170 | "Return (\"do\" NAME) if a do statement starts after point. |
1171 | NAME is nil if the statement has no label." | |
f14ca250 | 1172 | (if (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(do\\)\\>") |
0db701f0 | 1173 | (list (match-string 3) (match-string 2)))) |
ee30478d KH |
1174 | |
1175 | (defsubst f90-looking-at-select-case () | |
5ab33946 | 1176 | "Return (\"select\" NAME) if a select statement starts after point. |
d14e6bbe | 1177 | NAME is nil if the statement has no label." |
f14ca250 | 1178 | (if (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\ |
5ab33946 | 1179 | \\(select\\)[ \t]*\\(case\\|type\\)[ \t]*(") |
748dd5a8 | 1180 | (list (match-string 3) (match-string 2)))) |
034a9d40 RS |
1181 | |
1182 | (defsubst f90-looking-at-if-then () | |
d14e6bbe GM |
1183 | "Return (\"if\" NAME) if an if () then statement starts after point. |
1184 | NAME is nil if the statement has no label." | |
034a9d40 | 1185 | (save-excursion |
f14ca250 GM |
1186 | (when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(if\\)\\>") |
1187 | (let ((struct (match-string 3)) | |
748dd5a8 | 1188 | (label (match-string 2)) |
f14ca250 GM |
1189 | (pos (scan-lists (point) 1 0))) |
1190 | (and pos (goto-char pos)) | |
5c2a80ad GM |
1191 | (skip-chars-forward " \t") |
1192 | (if (or (looking-at "then\\>") | |
1193 | (when (f90-line-continued) | |
1194 | (f90-next-statement) | |
1195 | (skip-chars-forward " \t0-9&") | |
1196 | (looking-at "then\\>"))) | |
1197 | (list struct label)))))) | |
034a9d40 | 1198 | |
5ab33946 GM |
1199 | ;; FIXME label? |
1200 | (defsubst f90-looking-at-associate () | |
1201 | "Return (\"associate\") if an associate block starts after point." | |
1202 | (if (looking-at "\\<\\(associate\\)[ \t]*(") | |
1203 | (list (match-string 1)))) | |
1204 | ||
b32a3d99 | 1205 | (defsubst f90-looking-at-where-or-forall () |
d14e6bbe GM |
1206 | "Return (KIND NAME) if a where or forall block starts after point. |
1207 | NAME is nil if the statement has no label." | |
f14ca250 GM |
1208 | (save-excursion |
1209 | (when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\ | |
1210 | \\(where\\|forall\\)\\>") | |
1211 | (let ((struct (match-string 3)) | |
748dd5a8 | 1212 | (label (match-string 2)) |
f14ca250 GM |
1213 | (pos (scan-lists (point) 1 0))) |
1214 | (and pos (goto-char pos)) | |
1215 | (skip-chars-forward " \t") | |
1216 | (if (looking-at "\\(!\\|$\\)") (list struct label)))))) | |
034a9d40 RS |
1217 | |
1218 | (defsubst f90-looking-at-type-like () | |
5ab33946 | 1219 | "Return (KIND NAME) if a type/enum/interface/block-data starts after point. |
d14e6bbe | 1220 | NAME is non-nil only for type." |
69658465 | 1221 | (cond |
5ab33946 GM |
1222 | ((save-excursion |
1223 | (and (looking-at "\\<type[ \t]*") | |
1224 | (goto-char (match-end 0)) | |
1225 | (not (looking-at "\\(is\\>\\|(\\)")) | |
1226 | (or (looking-at "\\(\\sw+\\)") | |
1227 | (re-search-forward "[ \t]*::[ \t]*\\(\\sw+\\)" | |
1228 | (line-end-position) t)))) | |
1229 | (list "type" (match-string 1))) | |
1230 | ;;; ((and (not (looking-at f90-typeis-re)) | |
1231 | ;;; (looking-at f90-type-def-re)) | |
1232 | ;;; (list (match-string 1) (match-string 2))) | |
1233 | ((looking-at "\\(enum\\|interface\\|block[ \t]*data\\)\\>") | |
1234 | (list (match-string 1) nil)) | |
1235 | ((looking-at "abstract[ \t]*\\(interface\\)\\>") | |
6734e165 | 1236 | (list (match-string 1) nil)))) |
034a9d40 RS |
1237 | |
1238 | (defsubst f90-looking-at-program-block-start () | |
d14e6bbe | 1239 | "Return (KIND NAME) if a program block with name NAME starts after point." |
784d007b | 1240 | ;;;NAME is nil for an un-named main PROGRAM block." |
034a9d40 | 1241 | (cond |
ee30478d | 1242 | ((looking-at "\\(program\\)[ \t]+\\(\\sw+\\)\\>") |
6734e165 | 1243 | (list (match-string 1) (match-string 2))) |
034a9d40 | 1244 | ((and (not (looking-at "module[ \t]*procedure\\>")) |
640f9e26 | 1245 | (looking-at "\\(module\\)[ \t]+\\(\\sw+\\)\\>")) |
6734e165 | 1246 | (list (match-string 1) (match-string 2))) |
b974df0a | 1247 | ((and (not (looking-at "end[ \t]*\\(function\\|subroutine\\)")) |
640f9e26 | 1248 | (looking-at "[^!'\"\&\n]*\\(function\\|subroutine\\)[ \t]+\ |
748dd5a8 | 1249 | \\(\\sw+\\)")) |
6734e165 | 1250 | (list (match-string 1) (match-string 2))))) |
784d007b GM |
1251 | ;; Following will match an un-named main program block; however |
1252 | ;; one needs to check if there is an actual PROGRAM statement after | |
1253 | ;; point (and before any END program). Adding this will require | |
1254 | ;; change to eg f90-calculate-indent. | |
1255 | ;;; ((save-excursion | |
1256 | ;;; (not (f90-previous-statement))) | |
1257 | ;;; '("program" nil)))) | |
034a9d40 RS |
1258 | |
1259 | (defsubst f90-looking-at-program-block-end () | |
d14e6bbe | 1260 | "Return (KIND NAME) if a block with name NAME ends after point." |
69658465 | 1261 | (if (looking-at (concat "end[ \t]*" f90-blocks-re |
640f9e26 | 1262 | "?\\([ \t]+\\(\\sw+\\)\\)?\\>")) |
6734e165 | 1263 | (list (match-string 1) (match-string 3)))) |
034a9d40 RS |
1264 | |
1265 | (defsubst f90-comment-indent () | |
ec2f376f GM |
1266 | "Return the indentation to be used for a comment starting at point. |
1267 | Used for `comment-indent-function' by F90 mode. | |
1268 | \"!!!\", `f90-directive-comment-re', variable `f90-comment-region' return 0. | |
1269 | `f90-indented-comment-re' (if not trailing code) calls `f90-calculate-indent'. | |
89fa1ef5 | 1270 | All others return `comment-column', leaving at least one space after code." |
034a9d40 | 1271 | (cond ((looking-at "!!!") 0) |
640f9e26 GM |
1272 | ((and f90-directive-comment-re |
1273 | (looking-at f90-directive-comment-re)) 0) | |
1274 | ((looking-at (regexp-quote f90-comment-region)) 0) | |
1275 | ((and (looking-at f90-indented-comment-re) | |
1276 | ;; Don't attempt to indent trailing comment as code. | |
1277 | (save-excursion | |
1278 | (skip-chars-backward " \t") | |
1279 | (bolp))) | |
1280 | (f90-calculate-indent)) | |
1281 | (t (save-excursion | |
b464e0ee GM |
1282 | (skip-chars-backward " \t") |
1283 | (max (if (bolp) 0 (1+ (current-column))) comment-column))))) | |
034a9d40 RS |
1284 | |
1285 | (defsubst f90-present-statement-cont () | |
d14e6bbe GM |
1286 | "Return continuation properties of present statement. |
1287 | Possible return values are: | |
1288 | single - statement is not continued. | |
1289 | begin - current line is the first in a continued statement. | |
1290 | end - current line is the last in a continued statement | |
1291 | middle - current line is neither first nor last in a continued statement. | |
1292 | Comment lines embedded amongst continued lines return 'middle." | |
034a9d40 RS |
1293 | (let (pcont cont) |
1294 | (save-excursion | |
e3f5ce56 | 1295 | (setq pcont (if (f90-previous-statement) (f90-line-continued)))) |
034a9d40 RS |
1296 | (setq cont (f90-line-continued)) |
1297 | (cond ((and (not pcont) (not cont)) 'single) | |
640f9e26 GM |
1298 | ((and (not pcont) cont) 'begin) |
1299 | ((and pcont (not cont)) 'end) | |
1300 | ((and pcont cont) 'middle) | |
1301 | (t (error "The impossible occurred"))))) | |
034a9d40 RS |
1302 | |
1303 | (defsubst f90-indent-line-no () | |
d14e6bbe GM |
1304 | "If `f90-leave-line-no' is nil, left-justify a line number. |
1305 | Leaves point at the first non-blank character after the line number. | |
1306 | Call from beginning of line." | |
748dd5a8 GM |
1307 | (and (null f90-leave-line-no) (looking-at "[ \t]+[0-9]") |
1308 | (delete-horizontal-space)) | |
034a9d40 RS |
1309 | (skip-chars-forward " \t0-9")) |
1310 | ||
1311 | (defsubst f90-no-block-limit () | |
d14e6bbe GM |
1312 | "Return nil if point is at the edge of a code block. |
1313 | Searches line forward for \"function\" or \"subroutine\", | |
1314 | if all else fails." | |
748dd5a8 GM |
1315 | (save-excursion |
1316 | (not (or (looking-at "end") | |
1317 | (looking-at "\\(do\\|if\\|else\\(if\\|where\\)?\ | |
5ab33946 GM |
1318 | \\|select[ \t]*\\(case\\|type\\)\\|case\\|where\\|forall\\)\\>") |
1319 | (looking-at "\\(program\\|module\\|\ | |
b1ca7740 | 1320 | \\(?:abstract[ \t]*\\)?interface\\|block[ \t]*data\\)\\>") |
748dd5a8 GM |
1321 | (looking-at "\\(contains\\|\\sw+[ \t]*:\\)") |
1322 | (looking-at f90-type-def-re) | |
1323 | (re-search-forward "\\(function\\|subroutine\\)" | |
1324 | (line-end-position) t))))) | |
034a9d40 RS |
1325 | |
1326 | (defsubst f90-update-line () | |
d14e6bbe GM |
1327 | "Change case of current line as per `f90-auto-keyword-case'." |
1328 | (if f90-auto-keyword-case | |
1329 | (f90-change-keywords f90-auto-keyword-case | |
1330 | (line-beginning-position) (line-end-position)))) | |
034a9d40 | 1331 | \f |
d694ccd7 | 1332 | (defun f90-electric-insert (&optional arg) |
d14e6bbe | 1333 | "Change keyword case and auto-fill line as operators are inserted." |
d694ccd7 GM |
1334 | (interactive "*p") |
1335 | (self-insert-command arg) | |
d14e6bbe GM |
1336 | (if auto-fill-function (f90-do-auto-fill) ; also updates line |
1337 | (f90-update-line))) | |
1338 | ||
7cae52cf | 1339 | |
034a9d40 RS |
1340 | (defun f90-get-correct-indent () |
1341 | "Get correct indent for a line starting with line number. | |
1342 | Does not check type and subprogram indentation." | |
6734e165 | 1343 | (let ((epnt (line-end-position)) icol cont) |
034a9d40 RS |
1344 | (save-excursion |
1345 | (while (and (f90-previous-statement) | |
640f9e26 GM |
1346 | (or (progn |
1347 | (setq cont (f90-present-statement-cont)) | |
1348 | (or (eq cont 'end) (eq cont 'middle))) | |
1349 | (looking-at "[ \t]*[0-9]")))) | |
034a9d40 RS |
1350 | (setq icol (current-indentation)) |
1351 | (beginning-of-line) | |
5c2a80ad GM |
1352 | (when (re-search-forward "\\(if\\|do\\|select\\|where\\|forall\\)" |
1353 | (line-end-position) t) | |
e3f5ce56 GM |
1354 | (beginning-of-line) |
1355 | (skip-chars-forward " \t") | |
5c2a80ad GM |
1356 | (cond ((f90-looking-at-do) |
1357 | (setq icol (+ icol f90-do-indent))) | |
1358 | ((or (f90-looking-at-if-then) | |
1359 | (f90-looking-at-where-or-forall) | |
1360 | (f90-looking-at-select-case)) | |
5ab33946 GM |
1361 | (setq icol (+ icol f90-if-indent))) |
1362 | ((f90-looking-at-associate) | |
1363 | (setq icol (+ icol f90-associate-indent)))) | |
5c2a80ad | 1364 | (end-of-line)) |
034a9d40 | 1365 | (while (re-search-forward |
640f9e26 GM |
1366 | "\\(if\\|do\\|select\\|where\\|forall\\)" epnt t) |
1367 | (beginning-of-line) | |
e3f5ce56 | 1368 | (skip-chars-forward " \t0-9") |
640f9e26 | 1369 | (cond ((f90-looking-at-do) |
e3f5ce56 GM |
1370 | (setq icol (+ icol f90-do-indent))) |
1371 | ((or (f90-looking-at-if-then) | |
1372 | (f90-looking-at-where-or-forall) | |
1373 | (f90-looking-at-select-case)) | |
1374 | (setq icol (+ icol f90-if-indent))) | |
5ab33946 GM |
1375 | ((f90-looking-at-associate) |
1376 | (setq icol (+ icol f90-associate-indent))) | |
e3f5ce56 GM |
1377 | ((looking-at f90-end-if-re) |
1378 | (setq icol (- icol f90-if-indent))) | |
5ab33946 GM |
1379 | ((looking-at f90-end-associate-re) |
1380 | (setq icol (- icol f90-associate-indent))) | |
e3f5ce56 GM |
1381 | ((looking-at "end[ \t]*do\\>") |
1382 | (setq icol (- icol f90-do-indent)))) | |
640f9e26 | 1383 | (end-of-line)) |
034a9d40 | 1384 | icol))) |
69658465 | 1385 | |
034a9d40 RS |
1386 | (defun f90-calculate-indent () |
1387 | "Calculate the indent column based on previous statements." | |
1388 | (interactive) | |
1389 | (let (icol cont (case-fold-search t) (pnt (point))) | |
1390 | (save-excursion | |
1391 | (if (not (f90-previous-statement)) | |
b78cbdf7 GM |
1392 | ;; If f90-previous-statement returns nil, we must have been |
1393 | ;; called from on or before the first line of the first statement. | |
640f9e26 | 1394 | (setq icol (if (save-excursion |
b78cbdf7 GM |
1395 | ;; f90-previous-statement has moved us over |
1396 | ;; comment/blank lines, so we need to get | |
1397 | ;; back to the first code statement. | |
1398 | (when (looking-at "[ \t]*\\([!#]\\|$\\)") | |
1399 | (f90-next-statement)) | |
1400 | (skip-chars-forward " \t0-9") | |
784d007b GM |
1401 | (f90-looking-at-program-block-start)) |
1402 | 0 | |
1403 | ;; No explicit PROGRAM start statement. | |
1404 | f90-program-indent)) | |
640f9e26 GM |
1405 | (setq cont (f90-present-statement-cont)) |
1406 | (if (eq cont 'end) | |
1407 | (while (not (eq 'begin (f90-present-statement-cont))) | |
1408 | (f90-previous-statement))) | |
1409 | (cond ((eq cont 'begin) | |
1410 | (setq icol (+ (f90-current-indentation) | |
1411 | f90-continuation-indent))) | |
1412 | ((eq cont 'middle) (setq icol (current-indentation))) | |
1413 | (t (setq icol (f90-current-indentation)) | |
1414 | (skip-chars-forward " \t") | |
1415 | (if (looking-at "[0-9]") | |
1416 | (setq icol (f90-get-correct-indent)) | |
1417 | (cond ((or (f90-looking-at-if-then) | |
1418 | (f90-looking-at-where-or-forall) | |
1419 | (f90-looking-at-select-case) | |
1420 | (looking-at f90-else-like-re)) | |
1421 | (setq icol (+ icol f90-if-indent))) | |
1422 | ((f90-looking-at-do) | |
1423 | (setq icol (+ icol f90-do-indent))) | |
1424 | ((f90-looking-at-type-like) | |
1425 | (setq icol (+ icol f90-type-indent))) | |
5ab33946 GM |
1426 | ((f90-looking-at-associate) |
1427 | (setq icol (+ icol f90-associate-indent))) | |
640f9e26 GM |
1428 | ((or (f90-looking-at-program-block-start) |
1429 | (looking-at "contains[ \t]*\\($\\|!\\)")) | |
1430 | (setq icol (+ icol f90-program-indent))))) | |
1431 | (goto-char pnt) | |
1432 | (beginning-of-line) | |
1433 | (cond ((looking-at "[ \t]*$")) | |
1434 | ((looking-at "[ \t]*#") ; check for cpp directive | |
1435 | (setq icol 0)) | |
1436 | (t | |
1437 | (skip-chars-forward " \t0-9") | |
1438 | (cond ((or (looking-at f90-else-like-re) | |
1439 | (looking-at f90-end-if-re)) | |
1440 | (setq icol (- icol f90-if-indent))) | |
1441 | ((looking-at "end[ \t]*do\\>") | |
1442 | (setq icol (- icol f90-do-indent))) | |
1443 | ((looking-at f90-end-type-re) | |
1444 | (setq icol (- icol f90-type-indent))) | |
5ab33946 GM |
1445 | ((looking-at f90-end-associate-re) |
1446 | (setq icol (- icol f90-associate-indent))) | |
640f9e26 GM |
1447 | ((or (looking-at "contains[ \t]*\\(!\\|$\\)") |
1448 | (f90-looking-at-program-block-end)) | |
599aeab9 | 1449 | (setq icol (- icol f90-program-indent)))))))))) |
034a9d40 RS |
1450 | icol)) |
1451 | \f | |
034a9d40 RS |
1452 | (defun f90-previous-statement () |
1453 | "Move point to beginning of the previous F90 statement. | |
784d007b GM |
1454 | If no previous statement is found (i.e. if called from the first |
1455 | statement in the buffer), move to the start of the buffer and | |
1456 | return nil. A statement is a line which is neither blank nor a | |
1457 | comment." | |
034a9d40 RS |
1458 | (interactive) |
1459 | (let (not-first-statement) | |
1460 | (beginning-of-line) | |
1461 | (while (and (setq not-first-statement (zerop (forward-line -1))) | |
640f9e26 | 1462 | (looking-at "[ \t0-9]*\\(!\\|$\\|#\\)"))) |
034a9d40 RS |
1463 | not-first-statement)) |
1464 | ||
1465 | (defun f90-next-statement () | |
1466 | "Move point to beginning of the next F90 statement. | |
1467 | Return nil if no later statement is found." | |
1468 | (interactive) | |
1469 | (let (not-last-statement) | |
1470 | (beginning-of-line) | |
1471 | (while (and (setq not-last-statement | |
640f9e26 GM |
1472 | (and (zerop (forward-line 1)) |
1473 | (not (eobp)))) | |
1474 | (looking-at "[ \t0-9]*\\(!\\|$\\)"))) | |
034a9d40 RS |
1475 | not-last-statement)) |
1476 | ||
1477 | (defun f90-beginning-of-subprogram () | |
76bccf35 | 1478 | "Move point to the beginning of the current subprogram. |
ec2f376f | 1479 | Return (TYPE NAME), or nil if not found." |
034a9d40 RS |
1480 | (interactive) |
1481 | (let ((count 1) (case-fold-search t) matching-beg) | |
e3f5ce56 | 1482 | (beginning-of-line) |
76bccf35 | 1483 | (while (and (> count 0) |
640f9e26 | 1484 | (re-search-backward f90-program-block-re nil 'move)) |
e3f5ce56 GM |
1485 | (beginning-of-line) |
1486 | (skip-chars-forward " \t0-9") | |
1487 | (cond ((setq matching-beg (f90-looking-at-program-block-start)) | |
1488 | (setq count (1- count))) | |
1489 | ((f90-looking-at-program-block-end) | |
1490 | (setq count (1+ count))))) | |
034a9d40 RS |
1491 | (beginning-of-line) |
1492 | (if (zerop count) | |
640f9e26 | 1493 | matching-beg |
784d007b GM |
1494 | ;; Note this includes the case of an un-named main program, |
1495 | ;; in which case we go to (point-min). | |
ec2f376f | 1496 | (message "No beginning found.") |
034a9d40 RS |
1497 | nil))) |
1498 | ||
1499 | (defun f90-end-of-subprogram () | |
76bccf35 | 1500 | "Move point to the end of the current subprogram. |
ec2f376f | 1501 | Return (TYPE NAME), or nil if not found." |
034a9d40 | 1502 | (interactive) |
7aee8047 | 1503 | (let ((case-fold-search t) |
e2bd4dd4 | 1504 | (count 1) |
7aee8047 | 1505 | matching-end) |
034a9d40 | 1506 | (end-of-line) |
76bccf35 | 1507 | (while (and (> count 0) |
640f9e26 | 1508 | (re-search-forward f90-program-block-re nil 'move)) |
e3f5ce56 GM |
1509 | (beginning-of-line) |
1510 | (skip-chars-forward " \t0-9") | |
034a9d40 | 1511 | (cond ((f90-looking-at-program-block-start) |
640f9e26 GM |
1512 | (setq count (1+ count))) |
1513 | ((setq matching-end (f90-looking-at-program-block-end)) | |
1514 | (setq count (1- count)))) | |
034a9d40 | 1515 | (end-of-line)) |
6f1d50da GM |
1516 | ;; This means f90-end-of-subprogram followed by f90-start-of-subprogram |
1517 | ;; has a net non-zero effect, which seems odd. | |
1518 | ;;; (forward-line 1) | |
034a9d40 | 1519 | (if (zerop count) |
640f9e26 | 1520 | matching-end |
034a9d40 RS |
1521 | (message "No end found.") |
1522 | nil))) | |
1523 | ||
6f1d50da GM |
1524 | |
1525 | (defun f90-end-of-block (&optional num) | |
1526 | "Move point forward to the end of the current code block. | |
1527 | With optional argument NUM, go forward that many balanced blocks. | |
784d007b GM |
1528 | If NUM is negative, go backward to the start of a block. Checks |
1529 | for consistency of block types and labels (if present), and | |
1530 | completes outermost block if `f90-smart-end' is non-nil. | |
1531 | Interactively, pushes mark before moving point." | |
6f1d50da | 1532 | (interactive "p") |
784d007b GM |
1533 | (if (interactive-p) (push-mark (point) t)) ; can move some distance |
1534 | (and num (< num 0) (f90-beginning-of-block (- num))) | |
1535 | (let ((f90-smart-end (if f90-smart-end 'no-blink)) ; for final match-end | |
6f1d50da GM |
1536 | (case-fold-search t) |
1537 | (count (or num 1)) | |
1538 | start-list start-this start-type start-label end-type end-label) | |
6f1d50da GM |
1539 | (end-of-line) ; probably want this |
1540 | (while (and (> count 0) (re-search-forward f90-blocks-re nil 'move)) | |
1541 | (beginning-of-line) | |
1542 | (skip-chars-forward " \t0-9") | |
1543 | (cond ((or (f90-in-string) (f90-in-comment))) | |
1544 | ((setq start-this | |
1545 | (or | |
1546 | (f90-looking-at-do) | |
1547 | (f90-looking-at-select-case) | |
1548 | (f90-looking-at-type-like) | |
5ab33946 | 1549 | (f90-looking-at-associate) |
6f1d50da GM |
1550 | (f90-looking-at-program-block-start) |
1551 | (f90-looking-at-if-then) | |
1552 | (f90-looking-at-where-or-forall))) | |
1553 | (setq start-list (cons start-this start-list) ; not add-to-list! | |
1554 | count (1+ count))) | |
1555 | ((looking-at (concat "end[ \t]*" f90-blocks-re | |
1556 | "[ \t]*\\(\\sw+\\)?")) | |
1557 | (setq end-type (match-string 1) | |
1558 | end-label (match-string 2) | |
1559 | count (1- count)) | |
1560 | ;; Check any internal blocks. | |
1561 | (when start-list | |
1562 | (setq start-this (car start-list) | |
1563 | start-list (cdr start-list) | |
1564 | start-type (car start-this) | |
1565 | start-label (cadr start-this)) | |
748dd5a8 | 1566 | (or (f90-equal-symbols start-type end-type) |
6f1d50da GM |
1567 | (error "End type `%s' does not match start type `%s'" |
1568 | end-type start-type)) | |
748dd5a8 | 1569 | (or (f90-equal-symbols start-label end-label) |
6f1d50da GM |
1570 | (error "End label `%s' does not match start label `%s'" |
1571 | end-label start-label))))) | |
1572 | (end-of-line)) | |
76bccf35 | 1573 | (if (> count 0) (error "Missing block end")) |
6f1d50da | 1574 | ;; Check outermost block. |
784d007b GM |
1575 | (when f90-smart-end |
1576 | (save-excursion | |
1577 | (beginning-of-line) | |
1578 | (skip-chars-forward " \t0-9") | |
1579 | (f90-match-end))))) | |
6f1d50da GM |
1580 | |
1581 | (defun f90-beginning-of-block (&optional num) | |
1582 | "Move point backwards to the start of the current code block. | |
1583 | With optional argument NUM, go backward that many balanced blocks. | |
1584 | If NUM is negative, go forward to the end of a block. | |
1585 | Checks for consistency of block types and labels (if present). | |
784d007b GM |
1586 | Does not check the outermost block, because it may be incomplete. |
1587 | Interactively, pushes mark before moving point." | |
6f1d50da | 1588 | (interactive "p") |
fcca5273 | 1589 | (if (interactive-p) (push-mark (point) t)) |
784d007b | 1590 | (and num (< num 0) (f90-end-of-block (- num))) |
6f1d50da GM |
1591 | (let ((case-fold-search t) |
1592 | (count (or num 1)) | |
748dd5a8 GM |
1593 | end-list end-this end-type end-label |
1594 | start-this start-type start-label) | |
6f1d50da GM |
1595 | (beginning-of-line) ; probably want this |
1596 | (while (and (> count 0) (re-search-backward f90-blocks-re nil 'move)) | |
1597 | (beginning-of-line) | |
1598 | (skip-chars-forward " \t0-9") | |
1599 | (cond ((or (f90-in-string) (f90-in-comment))) | |
1600 | ((looking-at (concat "end[ \t]*" f90-blocks-re | |
1601 | "[ \t]*\\(\\sw+\\)?")) | |
1602 | (setq end-list (cons (list (match-string 1) (match-string 2)) | |
1603 | end-list) | |
1604 | count (1+ count))) | |
1605 | ((setq start-this | |
1606 | (or | |
1607 | (f90-looking-at-do) | |
1608 | (f90-looking-at-select-case) | |
1609 | (f90-looking-at-type-like) | |
5ab33946 | 1610 | (f90-looking-at-associate) |
6f1d50da GM |
1611 | (f90-looking-at-program-block-start) |
1612 | (f90-looking-at-if-then) | |
1613 | (f90-looking-at-where-or-forall))) | |
1614 | (setq start-type (car start-this) | |
1615 | start-label (cadr start-this) | |
1616 | count (1- count)) | |
1617 | ;; Check any internal blocks. | |
1618 | (when end-list | |
1619 | (setq end-this (car end-list) | |
1620 | end-list (cdr end-list) | |
1621 | end-type (car end-this) | |
1622 | end-label (cadr end-this)) | |
748dd5a8 | 1623 | (or (f90-equal-symbols start-type end-type) |
6f1d50da GM |
1624 | (error "Start type `%s' does not match end type `%s'" |
1625 | start-type end-type)) | |
748dd5a8 | 1626 | (or (f90-equal-symbols start-label end-label) |
6f1d50da GM |
1627 | (error "Start label `%s' does not match end label `%s'" |
1628 | start-label end-label)))))) | |
784d007b GM |
1629 | ;; Includes an un-named main program block. |
1630 | (if (> count 0) (error "Missing block start")))) | |
6f1d50da | 1631 | |
76bccf35 GM |
1632 | (defun f90-next-block (&optional num) |
1633 | "Move point forward to the next end or start of a code block. | |
1634 | With optional argument NUM, go forward that many blocks. | |
1635 | If NUM is negative, go backwards. | |
1636 | A block is a subroutine, if-endif, etc." | |
6f1d50da | 1637 | (interactive "p") |
76bccf35 GM |
1638 | (let ((case-fold-search t) |
1639 | (count (if num (abs num) 1))) | |
1640 | (while (and (> count 0) | |
1641 | (if (> num 0) (re-search-forward f90-blocks-re nil 'move) | |
1642 | (re-search-backward f90-blocks-re nil 'move))) | |
6f1d50da GM |
1643 | (beginning-of-line) |
1644 | (skip-chars-forward " \t0-9") | |
76bccf35 GM |
1645 | (cond ((or (f90-in-string) (f90-in-comment))) |
1646 | ((or | |
1647 | (looking-at "end[ \t]*") | |
1648 | (f90-looking-at-do) | |
1649 | (f90-looking-at-select-case) | |
1650 | (f90-looking-at-type-like) | |
5ab33946 | 1651 | (f90-looking-at-associate) |
76bccf35 GM |
1652 | (f90-looking-at-program-block-start) |
1653 | (f90-looking-at-if-then) | |
1654 | (f90-looking-at-where-or-forall)) | |
1655 | (setq count (1- count)))) | |
1656 | (if (> num 0) (end-of-line) | |
1657 | (beginning-of-line))))) | |
1658 | ||
1659 | ||
1660 | (defun f90-previous-block (&optional num) | |
1661 | "Move point backward to the previous end or start of a code block. | |
1662 | With optional argument NUM, go backward that many blocks. | |
1663 | If NUM is negative, go forwards. | |
1664 | A block is a subroutine, if-endif, etc." | |
6f1d50da | 1665 | (interactive "p") |
76bccf35 | 1666 | (f90-next-block (- (or num 1)))) |
6f1d50da GM |
1667 | |
1668 | ||
034a9d40 | 1669 | (defun f90-mark-subprogram () |
a729409a | 1670 | "Put mark at end of F90 subprogram, point at beginning, push mark." |
034a9d40 RS |
1671 | (interactive) |
1672 | (let ((pos (point)) program) | |
1673 | (f90-end-of-subprogram) | |
0ee7f068 | 1674 | (push-mark) |
034a9d40 RS |
1675 | (goto-char pos) |
1676 | (setq program (f90-beginning-of-subprogram)) | |
a445370f | 1677 | (if (featurep 'xemacs) |
0ee7f068 | 1678 | (zmacs-activate-region) |
1bb3ae5c | 1679 | (setq mark-active t |
0ee7f068 | 1680 | deactivate-mark nil)) |
034a9d40 RS |
1681 | program)) |
1682 | ||
1683 | (defun f90-comment-region (beg-region end-region) | |
1684 | "Comment/uncomment every line in the region. | |
d14e6bbe GM |
1685 | Insert the variable `f90-comment-region' at the start of every line |
1686 | in the region, or, if already present, remove it." | |
034a9d40 | 1687 | (interactive "*r") |
748dd5a8 | 1688 | (let ((end (copy-marker end-region))) |
034a9d40 RS |
1689 | (goto-char beg-region) |
1690 | (beginning-of-line) | |
1691 | (if (looking-at (regexp-quote f90-comment-region)) | |
640f9e26 | 1692 | (delete-region (point) (match-end 0)) |
034a9d40 | 1693 | (insert f90-comment-region)) |
e3f5ce56 | 1694 | (while (and (zerop (forward-line 1)) |
640f9e26 | 1695 | (< (point) end)) |
034a9d40 | 1696 | (if (looking-at (regexp-quote f90-comment-region)) |
640f9e26 GM |
1697 | (delete-region (point) (match-end 0)) |
1698 | (insert f90-comment-region))) | |
034a9d40 RS |
1699 | (set-marker end nil))) |
1700 | ||
1701 | (defun f90-indent-line (&optional no-update) | |
87ee2359 GM |
1702 | "Indent current line as F90 code. |
1703 | Unless optional argument NO-UPDATE is non-nil, call `f90-update-line' | |
1704 | after indenting." | |
a729409a | 1705 | (interactive "*P") |
748dd5a8 GM |
1706 | (let ((case-fold-search t) |
1707 | (pos (point-marker)) | |
1708 | indent no-line-number) | |
1709 | (beginning-of-line) ; digits after & \n are not line-nos | |
1710 | (if (not (save-excursion (and (f90-previous-statement) | |
1711 | (f90-line-continued)))) | |
1712 | (f90-indent-line-no) | |
1713 | (setq no-line-number t) | |
1714 | (skip-chars-forward " \t")) | |
034a9d40 | 1715 | (if (looking-at "!") |
640f9e26 | 1716 | (setq indent (f90-comment-indent)) |
ab09adac | 1717 | (and f90-smart-end (looking-at "end") |
748dd5a8 | 1718 | (f90-match-end)) |
034a9d40 | 1719 | (setq indent (f90-calculate-indent))) |
748dd5a8 | 1720 | (or (= indent (current-column)) |
e3f5ce56 | 1721 | (f90-indent-to indent no-line-number)) |
034a9d40 RS |
1722 | ;; If initial point was within line's indentation, |
1723 | ;; position after the indentation. Else stay at same point in text. | |
748dd5a8 GM |
1724 | (and (< (point) pos) |
1725 | (goto-char pos)) | |
69658465 | 1726 | (if auto-fill-function |
7aee8047 GM |
1727 | ;; GM NO-UPDATE not honoured, since this calls f90-update-line. |
1728 | (f90-do-auto-fill) | |
748dd5a8 | 1729 | (or no-update (f90-update-line))) |
034a9d40 RS |
1730 | (set-marker pos nil))) |
1731 | ||
1732 | (defun f90-indent-new-line () | |
a729409a | 1733 | "Re-indent current line, insert a newline and indent the newline. |
87ee2359 | 1734 | An abbrev before point is expanded if the variable `abbrev-mode' is non-nil. |
034a9d40 | 1735 | If run in the middle of a line, the line is not broken." |
a729409a | 1736 | (interactive "*") |
748dd5a8 GM |
1737 | (if abbrev-mode (expand-abbrev)) |
1738 | (beginning-of-line) ; reindent where likely to be needed | |
7aee8047 | 1739 | (f90-indent-line) ; calls indent-line-no, update-line |
748dd5a8 | 1740 | (end-of-line) |
640f9e26 | 1741 | (delete-horizontal-space) ; destroy trailing whitespace |
748dd5a8 GM |
1742 | (let ((string (f90-in-string)) |
1743 | (cont (f90-line-continued))) | |
1744 | (and string (not cont) (insert "&")) | |
034a9d40 | 1745 | (newline) |
748dd5a8 | 1746 | (if (or string (and cont f90-beginning-ampersand)) (insert "&"))) |
7aee8047 | 1747 | (f90-indent-line 'no-update)) ; nothing to update |
034a9d40 RS |
1748 | |
1749 | ||
784d007b GM |
1750 | ;; TODO not add spaces to empty lines at the start. |
1751 | ;; Why is second line getting extra indent over first? | |
034a9d40 RS |
1752 | (defun f90-indent-region (beg-region end-region) |
1753 | "Indent every line in region by forward parsing." | |
1754 | (interactive "*r") | |
748dd5a8 | 1755 | (let ((end-region-mark (copy-marker end-region)) |
e3f5ce56 | 1756 | (save-point (point-marker)) |
cbc121c7 | 1757 | (case-fold-search t) |
640f9e26 | 1758 | block-list ind-lev ind-curr ind-b cont struct beg-struct end-struct) |
034a9d40 | 1759 | (goto-char beg-region) |
ec2f376f | 1760 | ;; First find a line which is not a continuation line or comment. |
034a9d40 | 1761 | (beginning-of-line) |
ee30478d | 1762 | (while (and (looking-at "[ \t]*[0-9]*\\(!\\|#\\|[ \t]*$\\)") |
640f9e26 GM |
1763 | (progn (f90-indent-line 'no-update) |
1764 | (zerop (forward-line 1))) | |
1765 | (< (point) end-region-mark))) | |
034a9d40 RS |
1766 | (setq cont (f90-present-statement-cont)) |
1767 | (while (and (or (eq cont 'middle) (eq cont 'end)) | |
640f9e26 | 1768 | (f90-previous-statement)) |
034a9d40 | 1769 | (setq cont (f90-present-statement-cont))) |
ec2f376f | 1770 | ;; Process present line for beginning of block. |
034a9d40 RS |
1771 | (setq f90-cache-position (point)) |
1772 | (f90-indent-line 'no-update) | |
e3f5ce56 GM |
1773 | (setq ind-lev (f90-current-indentation) |
1774 | ind-curr ind-lev) | |
1775 | (beginning-of-line) | |
1776 | (skip-chars-forward " \t0-9") | |
1777 | (setq struct nil | |
1778 | ind-b (cond ((setq struct (f90-looking-at-do)) f90-do-indent) | |
640f9e26 GM |
1779 | ((or (setq struct (f90-looking-at-if-then)) |
1780 | (setq struct (f90-looking-at-select-case)) | |
1781 | (setq struct (f90-looking-at-where-or-forall)) | |
1782 | (looking-at f90-else-like-re)) | |
1783 | f90-if-indent) | |
1784 | ((setq struct (f90-looking-at-type-like)) | |
1785 | f90-type-indent) | |
5ab33946 GM |
1786 | ((setq struct (f90-looking-at-associate)) |
1787 | f90-associate-indent) | |
640f9e26 | 1788 | ((or (setq struct (f90-looking-at-program-block-start)) |
34ba7e3d | 1789 | (looking-at "contains[ \t]*\\($\\|!\\)")) |
640f9e26 | 1790 | f90-program-indent))) |
034a9d40 RS |
1791 | (if ind-b (setq ind-lev (+ ind-lev ind-b))) |
1792 | (if struct (setq block-list (cons struct block-list))) | |
1793 | (while (and (f90-line-continued) (zerop (forward-line 1)) | |
640f9e26 | 1794 | (< (point) end-region-mark)) |
ec2f376f GM |
1795 | (if (looking-at "[ \t]*!") |
1796 | (f90-indent-to (f90-comment-indent)) | |
748dd5a8 GM |
1797 | (or (= (current-indentation) |
1798 | (+ ind-curr f90-continuation-indent)) | |
ec2f376f GM |
1799 | (f90-indent-to (+ ind-curr f90-continuation-indent) 'no-line-no)))) |
1800 | ;; Process all following lines. | |
d14e6bbe | 1801 | (while (and (zerop (forward-line 1)) (< (point) end-region-mark)) |
034a9d40 RS |
1802 | (beginning-of-line) |
1803 | (f90-indent-line-no) | |
1804 | (setq f90-cache-position (point)) | |
1805 | (cond ((looking-at "[ \t]*$") (setq ind-curr 0)) | |
640f9e26 GM |
1806 | ((looking-at "[ \t]*#") (setq ind-curr 0)) |
1807 | ((looking-at "!") (setq ind-curr (f90-comment-indent))) | |
1808 | ((f90-no-block-limit) (setq ind-curr ind-lev)) | |
1809 | ((looking-at f90-else-like-re) (setq ind-curr | |
1810 | (- ind-lev f90-if-indent))) | |
1811 | ((looking-at "contains[ \t]*\\($\\|!\\)") | |
1812 | (setq ind-curr (- ind-lev f90-program-indent))) | |
1813 | ((setq ind-b | |
1814 | (cond ((setq struct (f90-looking-at-do)) f90-do-indent) | |
1815 | ((or (setq struct (f90-looking-at-if-then)) | |
1816 | (setq struct (f90-looking-at-select-case)) | |
1817 | (setq struct (f90-looking-at-where-or-forall))) | |
1818 | f90-if-indent) | |
1819 | ((setq struct (f90-looking-at-type-like)) | |
1820 | f90-type-indent) | |
5ab33946 GM |
1821 | ((setq struct (f90-looking-at-associate)) |
1822 | f90-associate-indent) | |
640f9e26 GM |
1823 | ((setq struct (f90-looking-at-program-block-start)) |
1824 | f90-program-indent))) | |
1825 | (setq ind-curr ind-lev) | |
1826 | (if ind-b (setq ind-lev (+ ind-lev ind-b))) | |
1827 | (setq block-list (cons struct block-list))) | |
1828 | ((setq end-struct (f90-looking-at-program-block-end)) | |
1829 | (setq beg-struct (car block-list) | |
1830 | block-list (cdr block-list)) | |
1831 | (if f90-smart-end | |
1832 | (save-excursion | |
599aeab9 GM |
1833 | (f90-block-match (car beg-struct) (cadr beg-struct) |
1834 | (car end-struct) (cadr end-struct)))) | |
640f9e26 GM |
1835 | (setq ind-b |
1836 | (cond ((looking-at f90-end-if-re) f90-if-indent) | |
1837 | ((looking-at "end[ \t]*do\\>") f90-do-indent) | |
1838 | ((looking-at f90-end-type-re) f90-type-indent) | |
5ab33946 GM |
1839 | ((looking-at f90-end-associate-re) |
1840 | f90-associate-indent) | |
640f9e26 GM |
1841 | ((f90-looking-at-program-block-end) |
1842 | f90-program-indent))) | |
1843 | (if ind-b (setq ind-lev (- ind-lev ind-b))) | |
1844 | (setq ind-curr ind-lev)) | |
1845 | (t (setq ind-curr ind-lev))) | |
ec2f376f | 1846 | ;; Do the indentation if necessary. |
748dd5a8 | 1847 | (or (= ind-curr (current-column)) |
640f9e26 | 1848 | (f90-indent-to ind-curr)) |
034a9d40 | 1849 | (while (and (f90-line-continued) (zerop (forward-line 1)) |
640f9e26 | 1850 | (< (point) end-region-mark)) |
ec2f376f GM |
1851 | (if (looking-at "[ \t]*!") |
1852 | (f90-indent-to (f90-comment-indent)) | |
748dd5a8 GM |
1853 | (or (= (current-indentation) |
1854 | (+ ind-curr f90-continuation-indent)) | |
ec2f376f GM |
1855 | (f90-indent-to |
1856 | (+ ind-curr f90-continuation-indent) 'no-line-no))))) | |
1857 | ;; Restore point, etc. | |
034a9d40 RS |
1858 | (setq f90-cache-position nil) |
1859 | (goto-char save-point) | |
1860 | (set-marker end-region-mark nil) | |
1861 | (set-marker save-point nil) | |
a445370f | 1862 | (if (featurep 'xemacs) |
640f9e26 | 1863 | (zmacs-deactivate-region) |
034a9d40 RS |
1864 | (deactivate-mark)))) |
1865 | ||
1866 | (defun f90-indent-subprogram () | |
ec2f376f | 1867 | "Properly indent the subprogram containing point." |
a729409a | 1868 | (interactive "*") |
034a9d40 | 1869 | (save-excursion |
e3f5ce56 | 1870 | (let ((program (f90-mark-subprogram))) |
034a9d40 | 1871 | (if program |
640f9e26 GM |
1872 | (progn |
1873 | (message "Indenting %s %s..." | |
599aeab9 | 1874 | (car program) (cadr program)) |
640f9e26 GM |
1875 | (indent-region (point) (mark) nil) |
1876 | (message "Indenting %s %s...done" | |
599aeab9 | 1877 | (car program) (cadr program))) |
640f9e26 GM |
1878 | (message "Indenting the whole file...") |
1879 | (indent-region (point) (mark) nil) | |
1880 | (message "Indenting the whole file...done"))))) | |
034a9d40 | 1881 | |
034a9d40 | 1882 | (defun f90-break-line (&optional no-update) |
87ee2359 GM |
1883 | "Break line at point, insert continuation marker(s) and indent. |
1884 | Unless in a string or comment, or if the optional argument NO-UPDATE | |
1885 | is non-nil, call `f90-update-line' after inserting the continuation marker." | |
a729409a | 1886 | (interactive "*P") |
89fa1ef5 GM |
1887 | (cond ((f90-in-string) |
1888 | (insert "&\n&")) | |
1889 | ((f90-in-comment) | |
718d0706 | 1890 | (delete-horizontal-space 'backwards) ; remove trailing whitespace |
89fa1ef5 GM |
1891 | (insert "\n" (f90-get-present-comment-type))) |
1892 | (t (insert "&") | |
1893 | (or no-update (f90-update-line)) | |
1894 | (newline 1) | |
1895 | (if f90-beginning-ampersand (insert "&")))) | |
84021009 | 1896 | (indent-according-to-mode)) |
69658465 | 1897 | |
034a9d40 | 1898 | (defun f90-find-breakpoint () |
87ee2359 | 1899 | "From `fill-column', search backward for break-delimiter." |
748dd5a8 GM |
1900 | (re-search-backward f90-break-delimiters (line-beginning-position)) |
1901 | (if (not f90-break-before-delimiters) | |
1902 | (forward-char (if (looking-at f90-no-break-re) 2 1)) | |
1903 | (backward-char) | |
1904 | (or (looking-at f90-no-break-re) | |
0db701f0 | 1905 | (forward-char)))) |
034a9d40 | 1906 | |
034a9d40 | 1907 | (defun f90-do-auto-fill () |
d14e6bbe GM |
1908 | "Break line if non-white characters beyond `fill-column'. |
1909 | Update keyword case first." | |
a729409a | 1910 | (interactive "*") |
ec2f376f | 1911 | ;; Break line before or after last delimiter (non-word char) if |
b974df0a | 1912 | ;; position is beyond fill-column. |
ec2f376f | 1913 | ;; Will not break **, //, or => (as specified by f90-no-break-re). |
7cae52cf | 1914 | (f90-update-line) |
d595e95d GM |
1915 | ;; Need this for `f90-electric-insert' and other f90- callers. |
1916 | (unless (and (boundp 'comment-auto-fill-only-comments) | |
1917 | comment-auto-fill-only-comments | |
1918 | (not (f90-in-comment))) | |
1919 | (while (> (current-column) fill-column) | |
1920 | (let ((pos-mark (point-marker))) | |
1921 | (move-to-column fill-column) | |
1922 | (or (f90-in-string) (f90-find-breakpoint)) | |
1923 | (f90-break-line) | |
1924 | (goto-char pos-mark) | |
1925 | (set-marker pos-mark nil))))) | |
b974df0a | 1926 | |
a259425b GM |
1927 | (defun f90-join-lines (&optional arg) |
1928 | "Join current line to previous, fix whitespace, continuation, comments. | |
a729409a | 1929 | With optional argument ARG, join current line to following line. |
a259425b GM |
1930 | Like `join-line', but handles F90 syntax." |
1931 | (interactive "*P") | |
1932 | (beginning-of-line) | |
1933 | (if arg (forward-line 1)) | |
1934 | (when (eq (preceding-char) ?\n) | |
1935 | (skip-chars-forward " \t") | |
1936 | (if (looking-at "\&") (delete-char 1)) | |
1937 | (beginning-of-line) | |
1938 | (delete-region (point) (1- (point))) | |
034a9d40 | 1939 | (skip-chars-backward " \t") |
a259425b GM |
1940 | (and (eq (preceding-char) ?&) (delete-char -1)) |
1941 | (and (f90-in-comment) | |
1942 | (looking-at "[ \t]*!+") | |
1943 | (replace-match "")) | |
1944 | (or (f90-in-string) | |
1945 | (fixup-whitespace)))) | |
034a9d40 RS |
1946 | |
1947 | (defun f90-fill-region (beg-region end-region) | |
d14e6bbe | 1948 | "Fill every line in region by forward parsing. Join lines if possible." |
034a9d40 | 1949 | (interactive "*r") |
748dd5a8 | 1950 | (let ((end-region-mark (copy-marker end-region)) |
e3f5ce56 | 1951 | (go-on t) |
640f9e26 | 1952 | f90-smart-end f90-auto-keyword-case auto-fill-function) |
034a9d40 RS |
1953 | (goto-char beg-region) |
1954 | (while go-on | |
ec2f376f | 1955 | ;; Join as much as possible. |
a729409a | 1956 | (while (progn |
a259425b GM |
1957 | (end-of-line) |
1958 | (skip-chars-backward " \t") | |
1959 | (eq (preceding-char) ?&)) | |
1960 | (f90-join-lines 'forward)) | |
ec2f376f | 1961 | ;; Chop the line if necessary. |
034a9d40 | 1962 | (while (> (save-excursion (end-of-line) (current-column)) |
640f9e26 GM |
1963 | fill-column) |
1964 | (move-to-column fill-column) | |
1965 | (f90-find-breakpoint) | |
1966 | (f90-break-line 'no-update)) | |
748dd5a8 | 1967 | (setq go-on (and (< (point) end-region-mark) |
e3f5ce56 GM |
1968 | (zerop (forward-line 1))) |
1969 | f90-cache-position (point))) | |
034a9d40 | 1970 | (setq f90-cache-position nil) |
748dd5a8 | 1971 | (set-marker end-region-mark nil) |
a445370f | 1972 | (if (featurep 'xemacs) |
640f9e26 | 1973 | (zmacs-deactivate-region) |
034a9d40 RS |
1974 | (deactivate-mark)))) |
1975 | \f | |
1976 | (defun f90-block-match (beg-block beg-name end-block end-name) | |
1977 | "Match end-struct with beg-struct and complete end-block if possible. | |
ec2f376f GM |
1978 | BEG-BLOCK is the type of block as indicated at the start (e.g., do). |
1979 | BEG-NAME is the block start name (may be nil). | |
1980 | END-BLOCK is the type of block as indicated at the end (may be nil). | |
1981 | END-NAME is the block end name (may be nil). | |
034a9d40 | 1982 | Leave point at the end of line." |
784d007b GM |
1983 | ;; Hack to deal with the case when this is called from |
1984 | ;; f90-indent-region on a program block without an explicit PROGRAM | |
1985 | ;; statement at the start. Should really be an error (?). | |
1986 | (or beg-block (setq beg-block "program")) | |
6734e165 | 1987 | (search-forward "end" (line-end-position)) |
034a9d40 | 1988 | (catch 'no-match |
784d007b | 1989 | (if (and end-block (f90-equal-symbols beg-block end-block)) |
748dd5a8 GM |
1990 | (search-forward end-block) |
1991 | (if end-block | |
1992 | (progn | |
1993 | (message "END %s does not match %s." end-block beg-block) | |
1994 | (end-of-line) | |
1995 | (throw 'no-match nil)) | |
1996 | (message "Inserting %s." beg-block) | |
1997 | (insert (concat " " beg-block)))) | |
1998 | (if (f90-equal-symbols beg-name end-name) | |
1999 | (and end-name (search-forward end-name)) | |
2000 | (cond ((and beg-name (not end-name)) | |
2001 | (message "Inserting %s." beg-name) | |
2002 | (insert (concat " " beg-name))) | |
2003 | ((and beg-name end-name) | |
2004 | (message "Replacing %s with %s." end-name beg-name) | |
2005 | (search-forward end-name) | |
2006 | (replace-match beg-name)) | |
2007 | ((and (not beg-name) end-name) | |
2008 | (message "Deleting %s." end-name) | |
2009 | (search-forward end-name) | |
2010 | (replace-match "")))) | |
2011 | (or (looking-at "[ \t]*!") (delete-horizontal-space)))) | |
034a9d40 RS |
2012 | |
2013 | (defun f90-match-end () | |
ec2f376f | 2014 | "From an end block statement, find the corresponding block and name." |
034a9d40 | 2015 | (interactive) |
748dd5a8 GM |
2016 | (let ((count 1) |
2017 | (top-of-window (window-start)) | |
640f9e26 | 2018 | (end-point (point)) |
748dd5a8 | 2019 | (case-fold-search t) |
640f9e26 | 2020 | matching-beg beg-name end-name beg-block end-block end-struct) |
5c2a80ad | 2021 | (when (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9") |
ab09adac GM |
2022 | (setq end-struct (f90-looking-at-program-block-end))) |
2023 | (setq end-block (car end-struct) | |
599aeab9 | 2024 | end-name (cadr end-struct)) |
5c2a80ad GM |
2025 | (save-excursion |
2026 | (beginning-of-line) | |
784d007b GM |
2027 | (while (and (> count 0) |
2028 | (not (= (line-beginning-position) (point-min)))) | |
2029 | (re-search-backward f90-blocks-re nil 'move) | |
e3f5ce56 | 2030 | (beginning-of-line) |
748dd5a8 GM |
2031 | ;; GM not a line number if continued line. |
2032 | ;;; (skip-chars-forward " \t") | |
2033 | ;;; (skip-chars-forward "0-9") | |
e3f5ce56 | 2034 | (skip-chars-forward " \t0-9") |
6dd52caf GM |
2035 | (cond ((or (f90-in-string) (f90-in-comment))) |
2036 | ((setq matching-beg | |
e3f5ce56 GM |
2037 | (or |
2038 | (f90-looking-at-do) | |
2039 | (f90-looking-at-if-then) | |
2040 | (f90-looking-at-where-or-forall) | |
2041 | (f90-looking-at-select-case) | |
2042 | (f90-looking-at-type-like) | |
5ab33946 | 2043 | (f90-looking-at-associate) |
784d007b GM |
2044 | (f90-looking-at-program-block-start) |
2045 | ;; Interpret a single END without a block | |
2046 | ;; start to be the END of a program block | |
2047 | ;; without an initial PROGRAM line. | |
2048 | (if (= (line-beginning-position) (point-min)) | |
2049 | '("program" nil)))) | |
e3f5ce56 | 2050 | (setq count (1- count))) |
6dd52caf | 2051 | ((looking-at (concat "end[ \t]*" f90-blocks-re)) |
e3f5ce56 | 2052 | (setq count (1+ count))))) |
6dd52caf | 2053 | (if (> count 0) |
5c2a80ad GM |
2054 | (message "No matching beginning.") |
2055 | (f90-update-line) | |
2056 | (if (eq f90-smart-end 'blink) | |
2057 | (if (< (point) top-of-window) | |
2058 | (message "Matches %s: %s" | |
2059 | (what-line) | |
2060 | (buffer-substring | |
2061 | (line-beginning-position) | |
2062 | (line-end-position))) | |
c046af95 | 2063 | (sit-for blink-matching-delay))) |
e3f5ce56 | 2064 | (setq beg-block (car matching-beg) |
599aeab9 | 2065 | beg-name (cadr matching-beg)) |
5c2a80ad GM |
2066 | (goto-char end-point) |
2067 | (beginning-of-line) | |
ab09adac | 2068 | (f90-block-match beg-block beg-name end-block end-name)))))) |
034a9d40 RS |
2069 | |
2070 | (defun f90-insert-end () | |
87ee2359 | 2071 | "Insert a complete end statement matching beginning of present block." |
a729409a | 2072 | (interactive "*") |
e3f5ce56 | 2073 | (let ((f90-smart-end (or f90-smart-end 'blink))) |
034a9d40 RS |
2074 | (insert "end") |
2075 | (f90-indent-new-line))) | |
2076 | \f | |
ec2f376f | 2077 | ;; Abbrevs and keywords. |
034a9d40 RS |
2078 | |
2079 | (defun f90-abbrev-start () | |
69658465 | 2080 | "Typing `\\[help-command] or `? lists all the F90 abbrevs. |
034a9d40 | 2081 | Any other key combination is executed normally." |
7aee8047 GM |
2082 | (interactive "*") |
2083 | (insert last-command-char) | |
2084 | (let (char event) | |
2085 | (if (fboundp 'next-command-event) ; XEmacs | |
2086 | (setq event (next-command-event) | |
2c948571 | 2087 | char (and (fboundp 'event-to-character) |
640f9e26 | 2088 | (event-to-character event))) |
7aee8047 GM |
2089 | (setq event (read-event) |
2090 | char event)) | |
be550ccc | 2091 | ;; Insert char if not equal to `?', or if abbrev-mode is off. |
7aee8047 | 2092 | (if (and abbrev-mode (or (eq char ??) (eq char help-char))) |
640f9e26 | 2093 | (f90-abbrev-help) |
7aee8047 | 2094 | (setq unread-command-events (list event))))) |
034a9d40 RS |
2095 | |
2096 | (defun f90-abbrev-help () | |
2097 | "List the currently defined abbrevs in F90 mode." | |
2098 | (interactive) | |
2099 | (message "Listing abbrev table...") | |
2100 | (display-buffer (f90-prepare-abbrev-list-buffer)) | |
2101 | (message "Listing abbrev table...done")) | |
2102 | ||
2103 | (defun f90-prepare-abbrev-list-buffer () | |
ec2f376f | 2104 | "Create a buffer listing the F90 mode abbreviations." |
034a9d40 RS |
2105 | (save-excursion |
2106 | (set-buffer (get-buffer-create "*Abbrevs*")) | |
2107 | (erase-buffer) | |
2108 | (insert-abbrev-table-description 'f90-mode-abbrev-table t) | |
2109 | (goto-char (point-min)) | |
2110 | (set-buffer-modified-p nil) | |
2111 | (edit-abbrevs-mode)) | |
2112 | (get-buffer-create "*Abbrevs*")) | |
2113 | ||
2114 | (defun f90-upcase-keywords () | |
2115 | "Upcase all F90 keywords in the buffer." | |
a729409a | 2116 | (interactive "*") |
034a9d40 RS |
2117 | (f90-change-keywords 'upcase-word)) |
2118 | ||
2119 | (defun f90-capitalize-keywords () | |
2120 | "Capitalize all F90 keywords in the buffer." | |
a729409a | 2121 | (interactive "*") |
034a9d40 RS |
2122 | (f90-change-keywords 'capitalize-word)) |
2123 | ||
2124 | (defun f90-downcase-keywords () | |
2125 | "Downcase all F90 keywords in the buffer." | |
a729409a | 2126 | (interactive "*") |
034a9d40 RS |
2127 | (f90-change-keywords 'downcase-word)) |
2128 | ||
2129 | (defun f90-upcase-region-keywords (beg end) | |
2130 | "Upcase all F90 keywords in the region." | |
2131 | (interactive "*r") | |
2132 | (f90-change-keywords 'upcase-word beg end)) | |
2133 | ||
2134 | (defun f90-capitalize-region-keywords (beg end) | |
2135 | "Capitalize all F90 keywords in the region." | |
2136 | (interactive "*r") | |
2137 | (f90-change-keywords 'capitalize-word beg end)) | |
2138 | ||
2139 | (defun f90-downcase-region-keywords (beg end) | |
2140 | "Downcase all F90 keywords in the region." | |
2141 | (interactive "*r") | |
2142 | (f90-change-keywords 'downcase-word beg end)) | |
2143 | ||
2144 | ;; Change the keywords according to argument. | |
2145 | (defun f90-change-keywords (change-word &optional beg end) | |
ec2f376f | 2146 | "Change the case of F90 keywords in the region (if specified) or buffer. |
02f85cba | 2147 | CHANGE-WORD should be one of 'upcase-word, 'downcase-word, 'capitalize-word." |
034a9d40 | 2148 | (save-excursion |
e3f5ce56 GM |
2149 | (setq beg (or beg (point-min)) |
2150 | end (or end (point-max))) | |
69658465 | 2151 | (let ((keyword-re |
640f9e26 GM |
2152 | (concat "\\(" |
2153 | f90-keywords-re "\\|" f90-procedures-re "\\|" | |
2154 | f90-hpf-keywords-re "\\|" f90-operators-re "\\)")) | |
2155 | (ref-point (point-min)) | |
2156 | (modified (buffer-modified-p)) | |
e3f5ce56 | 2157 | state saveword back-point) |
034a9d40 | 2158 | (goto-char beg) |
ee30478d | 2159 | (unwind-protect |
640f9e26 GM |
2160 | (while (re-search-forward keyword-re end t) |
2161 | (unless (progn | |
5c2a80ad GM |
2162 | (setq state (parse-partial-sexp ref-point (point))) |
2163 | (or (nth 3 state) (nth 4 state) | |
748dd5a8 | 2164 | ;; GM f90-directive-comment-re? |
ec2f376f | 2165 | (save-excursion ; check for cpp directive |
5c2a80ad GM |
2166 | (beginning-of-line) |
2167 | (skip-chars-forward " \t0-9") | |
2168 | (looking-at "#")))) | |
640f9e26 GM |
2169 | (setq ref-point (point) |
2170 | back-point (save-excursion (backward-word 1) (point)) | |
e3f5ce56 | 2171 | saveword (buffer-substring back-point ref-point)) |
640f9e26 GM |
2172 | (funcall change-word -1) |
2173 | (or (string= saveword (buffer-substring back-point ref-point)) | |
2174 | (setq modified t)))) | |
2175 | (or modified (set-buffer-modified-p nil)))))) | |
034a9d40 | 2176 | |
d2d15846 DL |
2177 | |
2178 | (defun f90-current-defun () | |
2179 | "Function to use for `add-log-current-defun-function' in F90 mode." | |
2180 | (save-excursion | |
2181 | (nth 1 (f90-beginning-of-subprogram)))) | |
2182 | ||
784d007b GM |
2183 | |
2184 | (defun f90-backslash-not-special (&optional all) | |
2185 | "Make the backslash character (\\) be non-special in the current buffer. | |
2186 | With optional argument ALL, change the default for all present | |
2187 | and future F90 buffers. F90 mode normally treats backslash as an | |
2188 | escape character." | |
2189 | (or (eq major-mode 'f90-mode) | |
2190 | (error "This function should only be used in F90 buffers")) | |
2191 | (when (equal (char-syntax ?\\ ) ?\\ ) | |
2192 | (or all (set-syntax-table (copy-syntax-table (syntax-table)))) | |
2193 | (modify-syntax-entry ?\\ "."))) | |
2194 | ||
2195 | ||
034a9d40 | 2196 | (provide 'f90) |
db97b872 | 2197 | |
cbee283d | 2198 | ;; arch-tag: fceac97c-c147-44bd-aec0-172d4b560ef8 |
034a9d40 | 2199 | ;;; f90.el ends here |