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be010748 | 1 | ;;; f90.el --- Fortran-90 mode (free format) |
b578f267 | 2 | |
73b0cd50 | 3 | ;; Copyright (C) 1995-1997, 2000-2011 Free Software Foundation, Inc. |
034a9d40 | 4 | |
239da61d | 5 | ;; Author: Torbjörn Einarsson <Torbjorn.Einarsson@era.ericsson.se> |
9877fcf1 | 6 | ;; Maintainer: Glenn Morris <rgm@gnu.org> |
034a9d40 RS |
7 | ;; Keywords: fortran, f90, languages |
8 | ||
b578f267 EN |
9 | ;; This file is part of GNU Emacs. |
10 | ||
b1fc2b50 | 11 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
034a9d40 | 12 | ;; it under the terms of the GNU General Public License as published by |
b1fc2b50 GM |
13 | ;; the Free Software Foundation, either version 3 of the License, or |
14 | ;; (at your option) any later version. | |
034a9d40 | 15 | |
b578f267 | 16 | ;; GNU Emacs is distributed in the hope that it will be useful, |
034a9d40 RS |
17 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of |
18 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
19 | ;; GNU General Public License for more details. | |
20 | ||
21 | ;; You should have received a copy of the GNU General Public License | |
b1fc2b50 | 22 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. |
034a9d40 RS |
23 | |
24 | ;;; Commentary: | |
b578f267 | 25 | |
87ee2359 GM |
26 | ;; Major mode for editing F90 programs in FREE FORMAT. |
27 | ;; The minor language revision F95 is also supported (with font-locking). | |
b1ca7740 | 28 | ;; Some/many (?) aspects of F2003 are supported. |
5d8e0d43 | 29 | ;; Some aspects of F2008 are supported. |
87ee2359 | 30 | |
034a9d40 | 31 | ;; Knows about continuation lines, named structured statements, and other |
87ee2359 GM |
32 | ;; features in F90 including HPF (High Performance Fortran) structures. |
33 | ;; The basic feature provides accurate indentation of F90 programs. | |
034a9d40 RS |
34 | ;; In addition, there are many more features like automatic matching of all |
35 | ;; end statements, an auto-fill function to break long lines, a join-lines | |
87ee2359 GM |
36 | ;; function which joins continued lines, etc. |
37 | ||
38 | ;; To facilitate typing, a fairly complete list of abbreviations is provided. | |
39 | ;; All abbreviations begin with the backquote character "`" | |
87ee2359 | 40 | ;; For example, `i expands to integer (if abbrev-mode is on). |
034a9d40 | 41 | |
87ee2359 | 42 | ;; There are two separate features for altering the appearance of code: |
034a9d40 | 43 | ;; 1) Upcasing or capitalizing of all keywords. |
87ee2359 GM |
44 | ;; 2) Colors/fonts using font-lock-mode. |
45 | ;; Automatic upcase or downcase of keywords is controlled by the variable | |
46 | ;; f90-auto-keyword-case. | |
034a9d40 RS |
47 | |
48 | ;; The indentations of lines starting with ! is determined by the first of the | |
87ee2359 | 49 | ;; following matches (values in the left column are the defaults): |
ee30478d KH |
50 | |
51 | ;; start-string/regexp indent variable holding start-string/regexp | |
52 | ;; !!! 0 | |
53 | ;; !hpf\\$ (re) 0 f90-directive-comment-re | |
54 | ;; !!$ 0 f90-comment-region | |
55 | ;; ! (re) as code f90-indented-comment-re | |
56 | ;; default comment-column | |
57 | ||
58 | ;; Ex: Here is the result of 3 different settings of f90-indented-comment-re | |
59 | ;; f90-indented-comment-re !-indentation !!-indentation | |
60 | ;; ! as code as code | |
61 | ;; !! comment-column as code | |
62 | ;; ![^!] as code comment-column | |
87ee2359 GM |
63 | ;; Trailing comments are indented to comment-column with indent-for-comment. |
64 | ;; The function f90-comment-region toggles insertion of | |
65 | ;; the variable f90-comment-region in every line of the region. | |
034a9d40 | 66 | |
a729409a | 67 | ;; One common convention for free vs. fixed format is that free format files |
69658465 | 68 | ;; have the ending .f90 or .f95 while fixed format files have the ending .f. |
87ee2359 GM |
69 | ;; Emacs automatically loads Fortran files in the appropriate mode based |
70 | ;; on extension. You can modify this by adjusting the variable auto-mode-alist. | |
71 | ;; For example: | |
72 | ;; (add-to-list 'auto-mode-alist '("\\.f\\'" . f90-mode)) | |
73 | ||
034a9d40 | 74 | ;; Once you have entered f90-mode, you may get more info by using |
69658465 | 75 | ;; the command describe-mode (C-h m). For online help use |
87ee2359 GM |
76 | ;; C-h f <Name of function you want described>, or |
77 | ;; C-h v <Name of variable you want described>. | |
034a9d40 | 78 | |
87ee2359 GM |
79 | ;; To customize f90-mode for your taste, use, for example: |
80 | ;; (you don't have to specify values for all the parameters below) | |
81 | ;; | |
4f91a816 SM |
82 | ;; (add-hook 'f90-mode-hook |
83 | ;; ;; These are the default values. | |
84 | ;; (lambda () (setq f90-do-indent 3 | |
034a9d40 RS |
85 | ;; f90-if-indent 3 |
86 | ;; f90-type-indent 3 | |
87 | ;; f90-program-indent 2 | |
88 | ;; f90-continuation-indent 5 | |
89 | ;; f90-comment-region "!!$" | |
ee30478d KH |
90 | ;; f90-directive-comment-re "!hpf\\$" |
91 | ;; f90-indented-comment-re "!" | |
87ee2359 | 92 | ;; f90-break-delimiters "[-+\\*/><=,% \t]" |
034a9d40 RS |
93 | ;; f90-break-before-delimiters t |
94 | ;; f90-beginning-ampersand t | |
95 | ;; f90-smart-end 'blink | |
96 | ;; f90-auto-keyword-case nil | |
87ee2359 | 97 | ;; f90-leave-line-no nil |
72e80cad | 98 | ;; indent-tabs-mode nil |
b974df0a | 99 | ;; f90-font-lock-keywords f90-font-lock-keywords-2 |
72e80cad | 100 | ;; ) |
87ee2359 | 101 | ;; ;; These are not default. |
034a9d40 | 102 | ;; (abbrev-mode 1) ; turn on abbreviation mode |
b974df0a | 103 | ;; (f90-add-imenu-menu) ; extra menu with functions etc. |
034a9d40 RS |
104 | ;; (if f90-auto-keyword-case ; change case of all keywords on startup |
105 | ;; (f90-change-keywords f90-auto-keyword-case)) | |
640f9e26 | 106 | ;; )) |
87ee2359 GM |
107 | ;; |
108 | ;; in your .emacs file. You can also customize the lists | |
109 | ;; f90-font-lock-keywords, etc. | |
110 | ;; | |
111 | ;; The auto-fill and abbreviation minor modes are accessible from the F90 menu, | |
b974df0a | 112 | ;; or by using M-x auto-fill-mode and M-x abbrev-mode, respectively. |
034a9d40 RS |
113 | |
114 | ;; Remarks | |
115 | ;; 1) Line numbers are by default left-justified. If f90-leave-line-no is | |
116 | ;; non-nil, the line numbers are never touched. | |
87ee2359 | 117 | ;; 2) Multi-; statements like "do i=1,20 ; j=j+i ; end do" are not handled |
034a9d40 | 118 | ;; correctly, but I imagine them to be rare. |
ee30478d | 119 | ;; 3) Regexps for hilit19 are no longer supported. |
87ee2359 | 120 | ;; 4) For FIXED FORMAT code, use fortran mode. |
034a9d40 | 121 | ;; 5) This mode does not work under emacs-18.x. |
72e80cad KH |
122 | ;; 6) Preprocessor directives, i.e., lines starting with # are left-justified |
123 | ;; and are untouched by all case-changing commands. There is, at present, no | |
124 | ;; mechanism for treating multi-line directives (continued by \ ). | |
ee30478d KH |
125 | ;; 7) f77 do-loops do 10 i=.. ; ; 10 continue are not correctly indented. |
126 | ;; You are urged to use f90-do loops (with labels if you wish). | |
c80718cc | 127 | ;; 8) The highlighting mode under XEmacs is not as complete as under Emacs. |
034a9d40 RS |
128 | |
129 | ;; List of user commands | |
130 | ;; f90-previous-statement f90-next-statement | |
131 | ;; f90-beginning-of-subprogram f90-end-of-subprogram f90-mark-subprogram | |
132 | ;; f90-comment-region | |
133 | ;; f90-indent-line f90-indent-new-line | |
134 | ;; f90-indent-region (can be called by calling indent-region) | |
135 | ;; f90-indent-subprogram | |
136 | ;; f90-break-line f90-join-lines | |
034a9d40 RS |
137 | ;; f90-fill-region |
138 | ;; f90-insert-end | |
139 | ;; f90-upcase-keywords f90-upcase-region-keywords | |
140 | ;; f90-downcase-keywords f90-downcase-region-keywords | |
141 | ;; f90-capitalize-keywords f90-capitalize-region-keywords | |
b974df0a EN |
142 | ;; f90-add-imenu-menu |
143 | ;; f90-font-lock-1, f90-font-lock-2, f90-font-lock-3, f90-font-lock-4 | |
034a9d40 | 144 | |
87ee2359 | 145 | ;; Original author's thanks |
034a9d40 RS |
146 | ;; Thanks to all the people who have tested the mode. Special thanks to Jens |
147 | ;; Bloch Helmers for encouraging me to write this code, for creative | |
148 | ;; suggestions as well as for the lists of hpf-commands. | |
149 | ;; Also thanks to the authors of the fortran and pascal modes, on which some | |
150 | ;; of this code is built. | |
151 | ||
a729409a GM |
152 | ;;; Code: |
153 | ||
87ee2359 | 154 | ;; TODO |
b1ca7740 GM |
155 | ;; 1. Any missing F2003 syntax? |
156 | ;; 2. Have "f90-mode" just recognize F90 syntax, then derived modes | |
5ab33946 | 157 | ;; "f95-mode", "f2003-mode" for the language revisions. |
b1ca7740 GM |
158 | ;; 3. Support for align. |
159 | ;; Font-locking: | |
160 | ;; 1. OpenMP, OpenMPI?, preprocessor highlighting. | |
50e4518b GM |
161 | ;; 2. integer_name = 1 |
162 | ;; 3. Labels for "else" statements (F2003)? | |
87ee2359 | 163 | |
34ba7e3d GM |
164 | (defvar comment-auto-fill-only-comments) |
165 | (defvar font-lock-keywords) | |
0ee7f068 | 166 | |
034a9d40 | 167 | ;; User options |
034a9d40 | 168 | |
fcad5199 | 169 | (defgroup f90 nil |
a729409a | 170 | "Major mode for editing free format Fortran 90,95 code." |
8ec3bce0 | 171 | :link '(custom-group-link :tag "Font Lock Faces group" font-lock-faces) |
d2d15846 | 172 | :group 'languages) |
034a9d40 | 173 | |
fcad5199 | 174 | (defgroup f90-indent nil |
a729409a | 175 | "Indentation in free format Fortran." |
fcad5199 | 176 | :prefix "f90-" |
a729409a | 177 | :group 'f90) |
034a9d40 | 178 | |
034a9d40 | 179 | |
fcad5199 | 180 | (defcustom f90-do-indent 3 |
d4654cff | 181 | "Extra indentation applied to DO blocks." |
a729409a | 182 | :type 'integer |
f38184aa | 183 | :safe 'integerp |
fcad5199 | 184 | :group 'f90-indent) |
034a9d40 | 185 | |
fcad5199 | 186 | (defcustom f90-if-indent 3 |
d4654cff | 187 | "Extra indentation applied to IF, SELECT CASE, WHERE and FORALL blocks." |
a729409a | 188 | :type 'integer |
f38184aa | 189 | :safe 'integerp |
fcad5199 | 190 | :group 'f90-indent) |
034a9d40 | 191 | |
fcad5199 | 192 | (defcustom f90-type-indent 3 |
5ab33946 | 193 | "Extra indentation applied to TYPE, ENUM, INTERFACE and BLOCK DATA blocks." |
a729409a | 194 | :type 'integer |
f38184aa | 195 | :safe 'integerp |
fcad5199 | 196 | :group 'f90-indent) |
034a9d40 | 197 | |
fcad5199 | 198 | (defcustom f90-program-indent 2 |
d4654cff | 199 | "Extra indentation applied to PROGRAM, MODULE, SUBROUTINE, FUNCTION blocks." |
a729409a | 200 | :type 'integer |
f38184aa | 201 | :safe 'integerp |
fcad5199 | 202 | :group 'f90-indent) |
034a9d40 | 203 | |
5ab33946 GM |
204 | (defcustom f90-associate-indent 2 |
205 | "Extra indentation applied to ASSOCIATE blocks." | |
206 | :type 'integer | |
f38184aa | 207 | :safe 'integerp |
5ab33946 GM |
208 | :group 'f90-indent |
209 | :version "23.1") | |
210 | ||
fcad5199 | 211 | (defcustom f90-continuation-indent 5 |
d4654cff | 212 | "Extra indentation applied to continuation lines." |
a729409a | 213 | :type 'integer |
f38184aa | 214 | :safe 'integerp |
fcad5199 | 215 | :group 'f90-indent) |
034a9d40 | 216 | |
fcad5199 | 217 | (defcustom f90-comment-region "!!$" |
d4654cff | 218 | "String inserted by \\[f90-comment-region] at start of each line in region." |
a729409a | 219 | :type 'string |
f38184aa | 220 | :safe 'stringp |
fcad5199 RS |
221 | :group 'f90-indent) |
222 | ||
223 | (defcustom f90-indented-comment-re "!" | |
d4654cff | 224 | "Regexp matching comments to indent as code." |
a729409a | 225 | :type 'regexp |
f38184aa | 226 | :safe 'stringp |
fcad5199 RS |
227 | :group 'f90-indent) |
228 | ||
229 | (defcustom f90-directive-comment-re "!hpf\\$" | |
d4654cff | 230 | "Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented." |
a729409a | 231 | :type 'regexp |
f38184aa | 232 | :safe 'stringp |
fcad5199 RS |
233 | :group 'f90-indent) |
234 | ||
235 | (defcustom f90-beginning-ampersand t | |
d4654cff | 236 | "Non-nil gives automatic insertion of \& at start of continuation line." |
a729409a | 237 | :type 'boolean |
f38184aa | 238 | :safe 'booleanp |
fcad5199 RS |
239 | :group 'f90) |
240 | ||
241 | (defcustom f90-smart-end 'blink | |
d4654cff | 242 | "Qualification of END statements according to the matching block start. |
784d007b GM |
243 | For example, the END that closes an IF block is changed to END |
244 | IF. If the block has a label, this is added as well. Allowed | |
245 | values are 'blink, 'no-blink, and nil. If nil, nothing is done. | |
246 | The other two settings have the same effect, but 'blink | |
247 | additionally blinks the cursor to the start of the block." | |
a729409a | 248 | :type '(choice (const blink) (const no-blink) (const nil)) |
f38184aa | 249 | :safe (lambda (value) (memq value '(blink no-blink nil))) |
fcad5199 | 250 | :group 'f90) |
034a9d40 | 251 | |
fcad5199 | 252 | (defcustom f90-break-delimiters "[-+\\*/><=,% \t]" |
d4654cff | 253 | "Regexp matching delimiter characters at which lines may be broken. |
3f150a60 GM |
254 | There are some common two-character tokens where one or more of |
255 | the members matches this regexp. Although Fortran allows breaks | |
256 | within lexical tokens (provided the next line has a beginning ampersand), | |
257 | the constant `f90-no-break-re' ensures that such tokens are not split." | |
f38184aa GM |
258 | :type 'regexp |
259 | :safe 'stringp | |
fcad5199 | 260 | :group 'f90) |
034a9d40 | 261 | |
fcad5199 | 262 | (defcustom f90-break-before-delimiters t |
d4654cff | 263 | "Non-nil causes `f90-do-auto-fill' to break lines before delimiters." |
f38184aa GM |
264 | :type 'boolean |
265 | :safe 'booleanp | |
fcad5199 | 266 | :group 'f90) |
034a9d40 | 267 | |
fcad5199 | 268 | (defcustom f90-auto-keyword-case nil |
d4654cff | 269 | "Automatic case conversion of keywords. |
87ee2359 | 270 | The options are 'downcase-word, 'upcase-word, 'capitalize-word and nil." |
a729409a GM |
271 | :type '(choice (const downcase-word) (const upcase-word) |
272 | (const capitalize-word) (const nil)) | |
f38184aa GM |
273 | :safe (lambda (value) (memq value '(downcase-word |
274 | capitalize-word upcase-word nil))) | |
fcad5199 RS |
275 | :group 'f90) |
276 | ||
277 | (defcustom f90-leave-line-no nil | |
d4654cff | 278 | "If non-nil, line numbers are not left justified." |
a729409a | 279 | :type 'boolean |
f38184aa | 280 | :safe 'booleanp |
fcad5199 RS |
281 | :group 'f90) |
282 | ||
0ee7f068 GM |
283 | (defcustom f90-mode-hook nil |
284 | "Hook run when entering F90 mode." | |
a729409a | 285 | :type 'hook |
f38184aa GM |
286 | ;; Not the only safe options, but some common ones. |
287 | :safe (lambda (value) (member value '((f90-add-imenu-menu) nil))) | |
0ee7f068 | 288 | :options '(f90-add-imenu-menu) |
a729409a | 289 | :group 'f90) |
0ee7f068 GM |
290 | |
291 | ;; User options end here. | |
1bb3ae5c | 292 | |
ee30478d | 293 | (defconst f90-keywords-re |
84021009 | 294 | (regexp-opt '("allocatable" "allocate" "assign" "assignment" "backspace" |
640f9e26 GM |
295 | "block" "call" "case" "character" "close" "common" "complex" |
296 | "contains" "continue" "cycle" "data" "deallocate" | |
297 | "dimension" "do" "double" "else" "elseif" "elsewhere" "end" | |
298 | "enddo" "endfile" "endif" "entry" "equivalence" "exit" | |
299 | "external" "forall" "format" "function" "goto" "if" | |
300 | "implicit" "include" "inquire" "integer" "intent" | |
301 | "interface" "intrinsic" "logical" "module" "namelist" "none" | |
302 | "nullify" "only" "open" "operator" "optional" "parameter" | |
303 | "pause" "pointer" "precision" "print" "private" "procedure" | |
304 | "program" "public" "read" "real" "recursive" "result" "return" | |
305 | "rewind" "save" "select" "sequence" "stop" "subroutine" | |
306 | "target" "then" "type" "use" "where" "while" "write" | |
307 | ;; F95 keywords. | |
5ab33946 GM |
308 | "elemental" "pure" |
309 | ;; F2003 | |
310 | "abstract" "associate" "asynchronous" "bind" "class" | |
311 | "deferred" "enum" "enumerator" "extends" "extends_type_of" | |
b1ca7740 GM |
312 | "final" "generic" "import" "non_intrinsic" "non_overridable" |
313 | "nopass" "pass" "protected" "same_type_as" "value" "volatile" | |
ccf7a5d5 | 314 | ;; F2008. |
d4f259f7 GM |
315 | "contiguous" "submodule" "concurrent" "codimension" |
316 | "sync all" "sync memory" "critical" "image_index" | |
5ab33946 | 317 | ) 'words) |
9877fcf1 | 318 | "Regexp used by the function `f90-change-keywords'.") |
ee30478d KH |
319 | |
320 | (defconst f90-keywords-level-3-re | |
84021009 SM |
321 | (regexp-opt |
322 | '("allocatable" "allocate" "assign" "assignment" "backspace" | |
323 | "close" "deallocate" "dimension" "endfile" "entry" "equivalence" | |
324 | "external" "inquire" "intent" "intrinsic" "nullify" "only" "open" | |
5ab33946 | 325 | ;; FIXME operator and assignment should be F2003 procedures? |
84021009 SM |
326 | "operator" "optional" "parameter" "pause" "pointer" "print" "private" |
327 | "public" "read" "recursive" "result" "rewind" "save" "select" | |
328 | "sequence" "target" "write" | |
329 | ;; F95 keywords. | |
5ab33946 GM |
330 | "elemental" "pure" |
331 | ;; F2003. asynchronous separate. | |
b1ca7740 | 332 | "abstract" "deferred" "import" "final" "non_intrinsic" "non_overridable" |
5ab33946 | 333 | "nopass" "pass" "protected" "value" "volatile" |
ccf7a5d5 GM |
334 | ;; F2008. |
335 | ;; "concurrent" is only in the sense of "do [,] concurrent", but given | |
336 | ;; the [,] it's simpler to just do every instance (cf "do while"). | |
d4f259f7 | 337 | "contiguous" "concurrent" "codimension" "sync all" "sync memory" |
5ab33946 | 338 | ) 'words) |
84021009 | 339 | "Keyword-regexp for font-lock level >= 3.") |
ee30478d | 340 | |
ee30478d | 341 | (defconst f90-procedures-re |
84021009 | 342 | (concat "\\<" |
69658465 GM |
343 | (regexp-opt |
344 | '("abs" "achar" "acos" "adjustl" "adjustr" "aimag" "aint" | |
345 | "all" "allocated" "anint" "any" "asin" "associated" | |
346 | "atan" "atan2" "bit_size" "btest" "ceiling" "char" "cmplx" | |
347 | "conjg" "cos" "cosh" "count" "cshift" "date_and_time" "dble" | |
348 | "digits" "dim" "dot_product" "dprod" "eoshift" "epsilon" | |
349 | "exp" "exponent" "floor" "fraction" "huge" "iachar" "iand" | |
350 | "ibclr" "ibits" "ibset" "ichar" "ieor" "index" "int" "ior" | |
351 | "ishft" "ishftc" "kind" "lbound" "len" "len_trim" "lge" "lgt" | |
352 | "lle" "llt" "log" "log10" "logical" "matmul" "max" | |
353 | "maxexponent" "maxloc" "maxval" "merge" "min" "minexponent" | |
354 | "minloc" "minval" "mod" "modulo" "mvbits" "nearest" "nint" | |
355 | "not" "pack" "precision" "present" "product" "radix" | |
356 | ;; Real is taken out here to avoid highlighting declarations. | |
357 | "random_number" "random_seed" "range" ;; "real" | |
358 | "repeat" "reshape" "rrspacing" "scale" "scan" | |
359 | "selected_int_kind" "selected_real_kind" "set_exponent" | |
360 | "shape" "sign" "sin" "sinh" "size" "spacing" "spread" "sqrt" | |
361 | "sum" "system_clock" "tan" "tanh" "tiny" "transfer" | |
362 | "transpose" "trim" "ubound" "unpack" "verify" | |
363 | ;; F95 intrinsic functions. | |
5ab33946 GM |
364 | "null" "cpu_time" |
365 | ;; F2003. | |
366 | "move_alloc" "command_argument_count" "get_command" | |
367 | "get_command_argument" "get_environment_variable" | |
368 | "selected_char_kind" "wait" "flush" "new_line" | |
369 | "extends" "extends_type_of" "same_type_as" "bind" | |
370 | ;; F2003 ieee_arithmetic intrinsic module. | |
371 | "ieee_support_underflow_control" "ieee_get_underflow_mode" | |
372 | "ieee_set_underflow_mode" | |
373 | ;; F2003 iso_c_binding intrinsic module. | |
374 | "c_loc" "c_funloc" "c_associated" "c_f_pointer" | |
375 | "c_f_procpointer" | |
89826559 GM |
376 | ;; F2008. |
377 | "bge" "bgt" "ble" "blt" "dshiftl" "dshiftr" "leadz" "popcnt" | |
378 | "poppar" "trailz" "maskl" "maskr" "shifta" "shiftl" "shiftr" | |
379 | "merge_bits" "iall" "iany" "iparity" "storage_size" | |
380 | "bessel_j0" "bessel_j1" "bessel_jn" | |
381 | "bessel_y0" "bessel_y1" "bessel_yn" | |
382 | "erf" "erfc" "erfc_scaled" "gamma" "hypot" "log_gamma" | |
1a5db1f4 | 383 | "norm2" "parity" "findloc" "is_contiguous" |
d4f259f7 GM |
384 | "sync images" "lock" "unlock" "image_index" |
385 | "lcobound" "ucobound" "num_images" "this_image" | |
89826559 GM |
386 | ;; F2008 iso_fortran_env module. |
387 | "compiler_options" "compiler_version" | |
388 | ;; F2008 iso_c_binding module. | |
389 | "c_sizeof" | |
5ab33946 | 390 | ) t) |
69658465 GM |
391 | ;; A left parenthesis to avoid highlighting non-procedures. |
392 | "[ \t]*(") | |
ee30478d KH |
393 | "Regexp whose first part matches F90 intrinsic procedures.") |
394 | ||
395 | (defconst f90-operators-re | |
69658465 GM |
396 | (concat "\\." |
397 | (regexp-opt '("and" "eq" "eqv" "false" "ge" "gt" "le" "lt" "ne" | |
398 | "neqv" "not" "or" "true") t) | |
399 | "\\.") | |
ee30478d KH |
400 | "Regexp matching intrinsic operators.") |
401 | ||
402 | (defconst f90-hpf-keywords-re | |
84021009 | 403 | (regexp-opt |
ec2f376f | 404 | ;; Intrinsic procedures. |
84021009 SM |
405 | '("all_prefix" "all_scatter" "all_suffix" "any_prefix" |
406 | "any_scatter" "any_suffix" "copy_prefix" "copy_scatter" | |
407 | "copy_suffix" "count_prefix" "count_scatter" "count_suffix" | |
408 | "grade_down" "grade_up" | |
409 | "hpf_alignment" "hpf_distribution" "hpf_template" "iall" "iall_prefix" | |
410 | "iall_scatter" "iall_suffix" "iany" "iany_prefix" "iany_scatter" | |
411 | "iany_suffix" "ilen" "iparity" "iparity_prefix" | |
412 | "iparity_scatter" "iparity_suffix" "leadz" "maxval_prefix" | |
413 | "maxval_scatter" "maxval_suffix" "minval_prefix" "minval_scatter" | |
414 | "minval_suffix" "number_of_processors" "parity" | |
415 | "parity_prefix" "parity_scatter" "parity_suffix" "popcnt" "poppar" | |
416 | "processors_shape" "product_prefix" "product_scatter" | |
417 | "product_suffix" "sum_prefix" "sum_scatter" "sum_suffix" | |
ec2f376f | 418 | ;; Directives. |
84021009 | 419 | "align" "distribute" "dynamic" "independent" "inherit" "processors" |
69658465 | 420 | "realign" "redistribute" "template" |
ec2f376f | 421 | ;; Keywords. |
84021009 | 422 | "block" "cyclic" "extrinsic" "new" "onto" "pure" "with") 'words) |
ee30478d | 423 | "Regexp for all HPF keywords, procedures and directives.") |
034a9d40 | 424 | |
5ab33946 GM |
425 | (defconst f90-constants-re |
426 | (regexp-opt '( ;; F2003 iso_fortran_env constants. | |
427 | "iso_fortran_env" | |
428 | "input_unit" "output_unit" "error_unit" | |
429 | "iostat_end" "iostat_eor" | |
430 | "numeric_storage_size" "character_storage_size" | |
431 | "file_storage_size" | |
432 | ;; F2003 iso_c_binding constants. | |
433 | "iso_c_binding" | |
434 | "c_int" "c_short" "c_long" "c_long_long" "c_signed_char" | |
435 | "c_size_t" | |
436 | "c_int8_t" "c_int16_t" "c_int32_t" "c_int64_t" | |
437 | "c_int_least8_t" "c_int_least16_t" "c_int_least32_t" | |
438 | "c_int_least64_t" | |
439 | "c_int_fast8_t" "c_int_fast16_t" "c_int_fast32_t" | |
440 | "c_int_fast64_t" | |
441 | "c_intmax_t" "c_intptr_t" | |
442 | "c_float" "c_double" "c_long_double" | |
443 | "c_float_complex" "c_double_complex" "c_long_double_complex" | |
444 | "c_bool" "c_char" | |
445 | "c_null_char" "c_alert" "c_backspace" "c_form_feed" | |
446 | "c_new_line" "c_carriage_return" "c_horizontal_tab" | |
447 | "c_vertical_tab" | |
448 | "c_ptr" "c_funptr" "c_null_ptr" "c_null_funptr" | |
b1ca7740 GM |
449 | "ieee_exceptions" |
450 | "ieee_arithmetic" | |
451 | "ieee_features" | |
89826559 GM |
452 | ;; F2008 iso_fortran_env constants. |
453 | "character_kinds" "int8" "int16" "int32" "int64" | |
454 | "integer_kinds" "iostat_inquire_internal_unit" | |
455 | "logical_kinds" "real_kinds" "real32" "real64" "real128" | |
d4f259f7 | 456 | "lock_type" "atomic_int_kind" "atomic_logical_kind" |
5ab33946 GM |
457 | ) 'words) |
458 | "Regexp for Fortran intrinsic constants.") | |
034a9d40 | 459 | |
b1ca7740 GM |
460 | ;; cf f90-looking-at-type-like. |
461 | (defun f90-typedef-matcher (limit) | |
462 | "Search for the start/end of the definition of a derived type, up to LIMIT. | |
463 | Set the match data so that subexpression 1,2 are the TYPE, and | |
464 | type-name parts, respectively." | |
465 | (let (found l) | |
5fe2902f | 466 | (while (and (re-search-forward "\\<\\(\\(?:end[ \t]*\\)?type\\)\\>[ \t]*" |
b1ca7740 GM |
467 | limit t) |
468 | (not (setq found | |
469 | (progn | |
470 | (setq l (match-data)) | |
471 | (unless (looking-at "\\(is\\>\\|(\\)") | |
472 | (when (if (looking-at "\\(\\sw+\\)") | |
473 | (goto-char (match-end 0)) | |
474 | (re-search-forward | |
475 | "[ \t]*::[ \t]*\\(\\sw+\\)" | |
476 | (line-end-position) t)) | |
477 | ;; 0 is wrong, but we don't use it. | |
478 | (set-match-data | |
479 | (append l (list (match-beginning 1) | |
480 | (match-end 1)))) | |
481 | t))))))) | |
482 | found)) | |
483 | ||
ee30478d | 484 | (defvar f90-font-lock-keywords-1 |
45d1e4d4 | 485 | (list |
ec2f376f | 486 | ;; Special highlighting of "module procedure". |
b1ca7740 GM |
487 | '("\\<\\(module[ \t]*procedure\\)\\>\\([^()\n]*::\\)?[ \t]*\\([^&!\n]*\\)" |
488 | (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t)) | |
eb9f0295 | 489 | ;; Highlight definition of derived type. |
b1ca7740 GM |
490 | ;;; '("\\<\\(\\(?:end[ \t]*\\)?type\\)\\>\\([^()\n]*::\\)?[ \t]*\\(\\sw+\\)" |
491 | ;;; (1 font-lock-keyword-face) (3 font-lock-function-name-face)) | |
492 | '(f90-typedef-matcher | |
493 | (1 font-lock-keyword-face) (2 font-lock-function-name-face)) | |
5d8e0d43 GM |
494 | ;; F2003. Prevent operators being highlighted as functions. |
495 | '("\\<\\(\\(?:end[ \t]*\\)?interface[ \t]*\\(?:assignment\\|operator\\|\ | |
50e4518b GM |
496 | read\\|write\\)\\)[ \t]*(" (1 font-lock-keyword-face t)) |
497 | ;; Other functions and declarations. Named interfaces = F2003. | |
5d8e0d43 GM |
498 | ;; F2008: end submodule submodule_name. |
499 | '("\\<\\(\\(?:end[ \t]*\\)?\\(program\\|\\(?:sub\\)?module\\|\ | |
500 | function\\|associate\\|subroutine\\|interface\\)\\|use\\|call\\)\ | |
501 | \\>[ \t]*\\(\\sw+\\)?" | |
84021009 | 502 | (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t)) |
5d8e0d43 GM |
503 | ;; F2008: submodule (parent_name) submodule_name. |
504 | '("\\<\\(submodule\\)\\>[ \t]*([^)\n]+)[ \t]*\\(\\sw+\\)?" | |
505 | (1 font-lock-keyword-face) (2 font-lock-function-name-face nil t)) | |
b1ca7740 GM |
506 | ;; F2003. |
507 | '("\\<\\(use\\)[ \t]*,[ \t]*\\(\\(?:non_\\)?intrinsic\\)[ \t]*::[ \t]*\ | |
508 | \\(\\sw+\\)" | |
509 | (1 font-lock-keyword-face) (2 font-lock-keyword-face) | |
510 | (3 font-lock-function-name-face)) | |
50e4518b GM |
511 | "\\<\\(\\(end[ \t]*\\)?block[ \t]*data\\|contains\\)\\>" |
512 | ;; "abstract interface" is F2003. | |
513 | '("\\<abstract[ \t]*interface\\>" (0 font-lock-keyword-face t))) | |
ee30478d KH |
514 | "This does fairly subdued highlighting of comments and function calls.") |
515 | ||
b1ca7740 GM |
516 | ;; NB not explicitly handling this, yet it seems to work. |
517 | ;; type(...) function foo() | |
518 | (defun f90-typedec-matcher (limit) | |
519 | "Search for the declaration of variables of derived type, up to LIMIT. | |
520 | Set the match data so that subexpression 1,2 are the TYPE(...), | |
521 | and variable-name parts, respectively." | |
522 | ;; Matcher functions must return nil only when there are no more | |
523 | ;; matches within the search range. | |
524 | (let (found l) | |
525 | (while (and (re-search-forward "\\<\\(type\\|class\\)[ \t]*(" limit t) | |
526 | (not | |
527 | (setq found | |
528 | (condition-case nil | |
529 | (progn | |
530 | ;; Set l after this to just highlight | |
531 | ;; the "type" part. | |
532 | (backward-char 1) | |
533 | ;; Needed for: type( foo(...) ) :: bar | |
534 | (forward-sexp) | |
535 | (setq l (list (match-beginning 0) (point))) | |
536 | (skip-chars-forward " \t") | |
537 | (when | |
538 | (re-search-forward | |
539 | ;; type (foo) bar, qux | |
540 | (if (looking-at "\\sw+") | |
541 | "\\([^&!\n]+\\)" | |
542 | ;; type (foo), stuff :: bar, qux | |
543 | "::[ \t]*\\([^&!\n]+\\)") | |
544 | (line-end-position) t) | |
545 | (set-match-data | |
546 | (append (list (car l) (match-end 1)) | |
547 | l (list (match-beginning 1) | |
548 | (match-end 1)))) | |
549 | t)) | |
550 | (error nil)))))) | |
551 | found)) | |
552 | ||
ee30478d | 553 | (defvar f90-font-lock-keywords-2 |
69658465 GM |
554 | (append |
555 | f90-font-lock-keywords-1 | |
556 | (list | |
ec2f376f | 557 | ;; Variable declarations (avoid the real function call). |
b1ca7740 GM |
558 | ;; NB by accident (?), this correctly fontifies the "integer" in: |
559 | ;; integer () function foo () | |
560 | ;; because "() function foo ()" matches \\3. | |
561 | ;; The "pure" part does not really belong here, but was added to | |
562 | ;; exploit that hack. | |
563 | ;; The "function foo" bit is correctly fontified by keywords-1. | |
564 | ;; TODO ? actually check for balanced parens in that case. | |
565 | '("^[ \t0-9]*\\(?:pure\\|elemental\\)?[ \t]*\ | |
566 | \\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|\ | |
e2bd4dd4 | 567 | enumerator\\|generic\\|procedure\\|logical\\|double[ \t]*precision\\)\ |
9877fcf1 | 568 | \\(.*::\\|[ \t]*(.*)\\)?\\([^&!\n]*\\)" |
7aee8047 | 569 | (1 font-lock-type-face t) (4 font-lock-variable-name-face t)) |
b1ca7740 GM |
570 | ;; Derived type/class variables. |
571 | ;; TODO ? If we just highlighted the "type" part, rather than | |
572 | ;; "type(...)", this could be in the previous expression. And this | |
573 | ;; would be consistent with integer( kind=8 ), etc. | |
574 | '(f90-typedec-matcher | |
575 | (1 font-lock-type-face) (2 font-lock-variable-name-face)) | |
5ab33946 GM |
576 | ;; "real function foo (args)". Must override previous. Note hack |
577 | ;; to get "args" unhighlighted again. Might not always be right, | |
578 | ;; but probably better than leaving them as variables. | |
b1ca7740 | 579 | ;; NB not explicitly handling this case: |
5ab33946 | 580 | ;; integer( kind=1 ) function foo() |
b1ca7740 GM |
581 | ;; thanks to the happy accident described above. |
582 | ;; Not anchored, so don't need to worry about "pure" etc. | |
5ab33946 GM |
583 | '("\\<\\(\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|\ |
584 | logical\\|double[ \t]*precision\\|\ | |
585 | \\(?:type\\|class\\)[ \t]*([ \t]*\\sw+[ \t]*)\\)[ \t]*\\)\ | |
586 | \\(function\\)\\>[ \t]*\\(\\sw+\\)[ \t]*\\(([^&!\n]*)\\)" | |
587 | (1 font-lock-type-face t) (4 font-lock-keyword-face t) | |
588 | (5 font-lock-function-name-face t) (6 'default t)) | |
f43d8ecc GM |
589 | ;; enum (F2003; must be followed by ", bind(C)"). |
590 | '("\\<\\(enum\\)[ \t]*," (1 font-lock-keyword-face)) | |
b1ca7740 | 591 | ;; end do, enum (F2003), if, select, where, and forall constructs. |
5ab33946 | 592 | '("\\<\\(end[ \t]*\\(do\\|if\\|enum\\|select\\|forall\\|where\\)\\)\\>\ |
69658465 GM |
593 | \\([ \t]+\\(\\sw+\\)\\)?" |
594 | (1 font-lock-keyword-face) (3 font-lock-constant-face nil t)) | |
b1ca7740 | 595 | '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)?\\(\\(if\\|\ |
5ab33946 GM |
596 | do\\([ \t]*while\\)?\\|select[ \t]*\\(?:case\\|type\\)\\|where\\|\ |
597 | forall\\)\\)\\>" | |
69658465 | 598 | (2 font-lock-constant-face nil t) (3 font-lock-keyword-face)) |
ec2f376f | 599 | ;; Implicit declaration. |
69658465 | 600 | '("\\<\\(implicit\\)[ \t]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\ |
5ab33946 GM |
601 | \\|enumerator\\|procedure\\|\ |
602 | logical\\|double[ \t]*precision\\|type[ \t]*(\\sw+)\\|none\\)[ \t]*" | |
69658465 GM |
603 | (1 font-lock-keyword-face) (2 font-lock-type-face)) |
604 | '("\\<\\(namelist\\|common\\)[ \t]*\/\\(\\sw+\\)?\/" | |
605 | (1 font-lock-keyword-face) (2 font-lock-constant-face nil t)) | |
606 | "\\<else\\([ \t]*if\\|where\\)?\\>" | |
7aee8047 | 607 | '("\\(&\\)[ \t]*\\(!\\|$\\)" (1 font-lock-keyword-face)) |
69658465 GM |
608 | "\\<\\(then\\|continue\\|format\\|include\\|stop\\|return\\)\\>" |
609 | '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)?\\>" | |
610 | (1 font-lock-keyword-face) (2 font-lock-constant-face nil t)) | |
611 | '("\\<\\(case\\)[ \t]*\\(default\\|(\\)" . 1) | |
5ab33946 GM |
612 | ;; F2003 "class default". |
613 | '("\\<\\(class\\)[ \t]*default" . 1) | |
614 | ;; F2003 "type is" in a "select type" block. | |
615 | '("\\<\\(\\(type\\|class\\)[ \t]*is\\)[ \t]*(" (1 font-lock-keyword-face t)) | |
616 | '("\\<\\(do\\|go[ \t]*to\\)\\>[ \t]*\\([0-9]+\\)" | |
69658465 | 617 | (1 font-lock-keyword-face) (2 font-lock-constant-face)) |
f14ca250 | 618 | ;; Line numbers (lines whose first character after number is letter). |
69658465 | 619 | '("^[ \t]*\\([0-9]+\\)[ \t]*[a-z]+" (1 font-lock-constant-face t)))) |
87ee2359 | 620 | "Highlights declarations, do-loops and other constructs.") |
ee30478d KH |
621 | |
622 | (defvar f90-font-lock-keywords-3 | |
623 | (append f90-font-lock-keywords-2 | |
69658465 GM |
624 | (list |
625 | f90-keywords-level-3-re | |
626 | f90-operators-re | |
1ea193a2 GM |
627 | ;; FIXME why isn't this font-lock-builtin-face, which |
628 | ;; otherwise we hardly use, as in fortran.el? | |
69658465 | 629 | (list f90-procedures-re '(1 font-lock-keyword-face keep)) |
640f9e26 | 630 | "\\<real\\>" ; avoid overwriting real defs |
5ab33946 | 631 | ;; As an attribute, but not as an optional argument. |
599aeab9 | 632 | '("\\<\\(asynchronous\\)[ \t]*[^=]" . 1))) |
ee30478d KH |
633 | "Highlights all F90 keywords and intrinsic procedures.") |
634 | ||
635 | (defvar f90-font-lock-keywords-4 | |
636 | (append f90-font-lock-keywords-3 | |
5ab33946 GM |
637 | (list (cons f90-constants-re 'font-lock-constant-face) |
638 | f90-hpf-keywords-re)) | |
639 | "Highlights all F90 and HPF keywords and constants.") | |
ee30478d KH |
640 | |
641 | (defvar f90-font-lock-keywords | |
87ee2359 | 642 | f90-font-lock-keywords-2 |
0ee7f068 GM |
643 | "*Default expressions to highlight in F90 mode. |
644 | Can be overridden by the value of `font-lock-maximum-decoration'.") | |
034a9d40 | 645 | |
ec2f376f | 646 | |
70186f7f GM |
647 | (defvar f90-mode-syntax-table |
648 | (let ((table (make-syntax-table))) | |
649 | (modify-syntax-entry ?\! "<" table) ; begin comment | |
650 | (modify-syntax-entry ?\n ">" table) ; end comment | |
5d16fdd7 | 651 | ;; FIXME: This goes against the convention: it should be "_". |
70186f7f GM |
652 | (modify-syntax-entry ?_ "w" table) ; underscore in names |
653 | (modify-syntax-entry ?\' "\"" table) ; string quote | |
654 | (modify-syntax-entry ?\" "\"" table) ; string quote | |
5d16fdd7 SM |
655 | ;; FIXME: We used to set ` to word syntax for the benefit of abbrevs, but |
656 | ;; we do not need it any more. Not sure if it should be "_" or "." now. | |
657 | (modify-syntax-entry ?\` "_" table) | |
70186f7f GM |
658 | (modify-syntax-entry ?\r " " table) ; return is whitespace |
659 | (modify-syntax-entry ?+ "." table) ; punctuation | |
660 | (modify-syntax-entry ?- "." table) | |
661 | (modify-syntax-entry ?= "." table) | |
662 | (modify-syntax-entry ?* "." table) | |
663 | (modify-syntax-entry ?/ "." table) | |
a8955be7 | 664 | (modify-syntax-entry ?% "." table) ; bug#8820 |
fffa137c | 665 | ;; I think that the f95 standard leaves the behavior of \ |
784d007b GM |
666 | ;; unspecified, but that f2k will require it to be non-special. |
667 | ;; Use `f90-backslash-not-special' to change. | |
70186f7f GM |
668 | (modify-syntax-entry ?\\ "\\" table) ; escape chars |
669 | table) | |
670 | "Syntax table used in F90 mode.") | |
671 | ||
672 | (defvar f90-mode-map | |
673 | (let ((map (make-sparse-keymap))) | |
674 | (define-key map "`" 'f90-abbrev-start) | |
675 | (define-key map "\C-c;" 'f90-comment-region) | |
676 | (define-key map "\C-\M-a" 'f90-beginning-of-subprogram) | |
677 | (define-key map "\C-\M-e" 'f90-end-of-subprogram) | |
678 | (define-key map "\C-\M-h" 'f90-mark-subprogram) | |
6f1d50da GM |
679 | (define-key map "\C-\M-n" 'f90-end-of-block) |
680 | (define-key map "\C-\M-p" 'f90-beginning-of-block) | |
70186f7f GM |
681 | (define-key map "\C-\M-q" 'f90-indent-subprogram) |
682 | (define-key map "\C-j" 'f90-indent-new-line) ; LFD equals C-j | |
83596348 | 683 | ;;; (define-key map "\r" 'newline) |
70186f7f GM |
684 | (define-key map "\C-c\r" 'f90-break-line) |
685 | ;;; (define-key map [M-return] 'f90-break-line) | |
76bccf35 GM |
686 | (define-key map "\C-c\C-a" 'f90-previous-block) |
687 | (define-key map "\C-c\C-e" 'f90-next-block) | |
70186f7f GM |
688 | (define-key map "\C-c\C-d" 'f90-join-lines) |
689 | (define-key map "\C-c\C-f" 'f90-fill-region) | |
690 | (define-key map "\C-c\C-p" 'f90-previous-statement) | |
691 | (define-key map "\C-c\C-n" 'f90-next-statement) | |
8a79905d | 692 | (define-key map "\C-c]" 'f90-insert-end) |
70186f7f | 693 | (define-key map "\C-c\C-w" 'f90-insert-end) |
83596348 GM |
694 | ;; Standard tab binding will call this, and also handle regions. |
695 | ;;; (define-key map "\t" 'f90-indent-line) | |
70186f7f GM |
696 | (define-key map "," 'f90-electric-insert) |
697 | (define-key map "+" 'f90-electric-insert) | |
698 | (define-key map "-" 'f90-electric-insert) | |
699 | (define-key map "*" 'f90-electric-insert) | |
700 | (define-key map "/" 'f90-electric-insert) | |
a729409a GM |
701 | |
702 | (easy-menu-define f90-menu map "Menu for F90 mode." | |
703 | `("F90" | |
704 | ("Customization" | |
705 | ,(custom-menu-create 'f90) | |
68fcc3ec GM |
706 | ;; FIXME useless? |
707 | ["Set" Custom-set :active t | |
708 | :help "Set current value of all edited settings in the buffer"] | |
709 | ["Save" Custom-save :active t | |
710 | :help "Set and save all edited settings"] | |
711 | ["Reset to Current" Custom-reset-current :active t | |
712 | :help "Reset all edited settings to current"] | |
713 | ["Reset to Saved" Custom-reset-saved :active t | |
714 | :help "Reset all edited or set settings to saved"] | |
715 | ["Reset to Standard Settings" Custom-reset-standard :active t | |
716 | :help "Erase all cusomizations in buffer"] | |
a729409a GM |
717 | ) |
718 | "--" | |
68fcc3ec GM |
719 | ["Indent Subprogram" f90-indent-subprogram t] |
720 | ["Mark Subprogram" f90-mark-subprogram :active t :help | |
721 | "Mark the end of the current subprogram, move point to the start"] | |
722 | ["Beginning of Subprogram" f90-beginning-of-subprogram :active t | |
723 | :help "Move point to the start of the current subprogram"] | |
724 | ["End of Subprogram" f90-end-of-subprogram :active t | |
725 | :help "Move point to the end of the current subprogram"] | |
a729409a | 726 | "--" |
68fcc3ec GM |
727 | ["(Un)Comment Region" f90-comment-region :active mark-active |
728 | :help "Comment or uncomment the region"] | |
729 | ["Indent Region" f90-indent-region :active mark-active] | |
730 | ["Fill Region" f90-fill-region :active mark-active | |
731 | :help "Fill long lines in the region"] | |
a729409a | 732 | "--" |
68fcc3ec GM |
733 | ["Break Line at Point" f90-break-line :active t |
734 | :help "Break the current line at point"] | |
735 | ["Join with Previous Line" f90-join-lines :active t | |
736 | :help "Join the current line to the previous one"] | |
737 | ["Insert Block End" f90-insert-end :active t | |
738 | :help "Insert an end statement for the current code block"] | |
a729409a GM |
739 | "--" |
740 | ("Highlighting" | |
68fcc3ec | 741 | :help "Fontify this buffer to varying degrees" |
a729409a | 742 | ["Toggle font-lock-mode" font-lock-mode :selected font-lock-mode |
68fcc3ec | 743 | :style toggle :help "Fontify text in this buffer"] |
a729409a GM |
744 | "--" |
745 | ["Light highlighting (level 1)" f90-font-lock-1 t] | |
746 | ["Moderate highlighting (level 2)" f90-font-lock-2 t] | |
747 | ["Heavy highlighting (level 3)" f90-font-lock-3 t] | |
748 | ["Maximum highlighting (level 4)" f90-font-lock-4 t] | |
749 | ) | |
750 | ("Change Keyword Case" | |
68fcc3ec | 751 | :help "Change the case of keywords in the buffer or region" |
a729409a GM |
752 | ["Upcase Keywords (buffer)" f90-upcase-keywords t] |
753 | ["Capitalize Keywords (buffer)" f90-capitalize-keywords t] | |
754 | ["Downcase Keywords (buffer)" f90-downcase-keywords t] | |
755 | "--" | |
756 | ["Upcase Keywords (region)" f90-upcase-region-keywords | |
757 | mark-active] | |
758 | ["Capitalize Keywords (region)" f90-capitalize-region-keywords | |
759 | mark-active] | |
760 | ["Downcase Keywords (region)" f90-downcase-region-keywords | |
761 | mark-active] | |
762 | ) | |
763 | "--" | |
68fcc3ec GM |
764 | ["Toggle Auto Fill" auto-fill-mode :selected auto-fill-function |
765 | :style toggle | |
766 | :help "Automatically fill text while typing in this buffer"] | |
767 | ["Toggle Abbrev Mode" abbrev-mode :selected abbrev-mode | |
768 | :style toggle :help "Expand abbreviations while typing in this buffer"] | |
769 | ["Add Imenu Menu" f90-add-imenu-menu | |
a729409a | 770 | :active (not (lookup-key (current-local-map) [menu-bar index])) |
68fcc3ec GM |
771 | :included (fboundp 'imenu-add-to-menubar) |
772 | :help "Add an index menu to the menu-bar" | |
773 | ])) | |
70186f7f | 774 | map) |
034a9d40 | 775 | "Keymap used in F90 mode.") |
ee30478d | 776 | |
b974df0a | 777 | |
599aeab9 GM |
778 | (defun f90-font-lock-n (n) |
779 | "Set `font-lock-keywords' to F90 level N keywords." | |
780 | (font-lock-mode 1) | |
781 | (setq font-lock-keywords | |
782 | (symbol-value (intern-soft (format "f90-font-lock-keywords-%d" n)))) | |
783 | (font-lock-fontify-buffer)) | |
784 | ||
1a341882 GM |
785 | (defun f90-font-lock-1 () |
786 | "Set `font-lock-keywords' to `f90-font-lock-keywords-1'." | |
787 | (interactive) | |
599aeab9 | 788 | (f90-font-lock-n 1)) |
1a341882 GM |
789 | |
790 | (defun f90-font-lock-2 () | |
791 | "Set `font-lock-keywords' to `f90-font-lock-keywords-2'." | |
792 | (interactive) | |
599aeab9 | 793 | (f90-font-lock-n 2)) |
1a341882 GM |
794 | |
795 | (defun f90-font-lock-3 () | |
796 | "Set `font-lock-keywords' to `f90-font-lock-keywords-3'." | |
797 | (interactive) | |
599aeab9 | 798 | (f90-font-lock-n 3)) |
1a341882 GM |
799 | |
800 | (defun f90-font-lock-4 () | |
801 | "Set `font-lock-keywords' to `f90-font-lock-keywords-4'." | |
802 | (interactive) | |
599aeab9 | 803 | (f90-font-lock-n 4)) |
1a341882 | 804 | \f |
ee30478d | 805 | ;; Regexps for finding program structures. |
69658465 | 806 | (defconst f90-blocks-re |
ec2f376f GM |
807 | (concat "\\(block[ \t]*data\\|" |
808 | (regexp-opt '("do" "if" "interface" "function" "module" "program" | |
5ab33946 GM |
809 | "select" "subroutine" "type" "where" "forall" |
810 | ;; F2003. | |
5d8e0d43 GM |
811 | "enum" "associate" |
812 | ;; F2008. | |
813 | "submodule")) | |
ec2f376f GM |
814 | "\\)\\>") |
815 | "Regexp potentially indicating a \"block\" of F90 code.") | |
816 | ||
69658465 | 817 | (defconst f90-program-block-re |
5d8e0d43 | 818 | (regexp-opt '("program" "module" "subroutine" "function" "submodule") 'paren) |
ec2f376f GM |
819 | "Regexp used to locate the start/end of a \"subprogram\".") |
820 | ||
5ab33946 | 821 | ;; "class is" is F2003. |
69658465 | 822 | (defconst f90-else-like-re |
5ab33946 GM |
823 | "\\(else\\([ \t]*if\\|where\\)?\\|case[ \t]*\\(default\\|(\\)\\|\ |
824 | \\(class\\|type\\)[ \t]*is[ \t]*(\\|class[ \t]*default\\)" | |
825 | "Regexp matching an ELSE IF, ELSEWHERE, CASE, CLASS/TYPE IS statement.") | |
ec2f376f | 826 | |
69658465 | 827 | (defconst f90-end-if-re |
ec2f376f GM |
828 | (concat "end[ \t]*" |
829 | (regexp-opt '("if" "select" "where" "forall") 'paren) | |
830 | "\\>") | |
831 | "Regexp matching the end of an IF, SELECT, WHERE, FORALL block.") | |
832 | ||
69658465 | 833 | (defconst f90-end-type-re |
5ab33946 GM |
834 | "end[ \t]*\\(type\\|enum\\|interface\\|block[ \t]*data\\)\\>" |
835 | "Regexp matching the end of a TYPE, ENUM, INTERFACE, BLOCK DATA section.") | |
836 | ||
837 | (defconst f90-end-associate-re | |
838 | "end[ \t]*associate\\>" | |
839 | "Regexp matching the end of an ASSOCIATE block.") | |
ec2f376f | 840 | |
5ab33946 GM |
841 | ;; This is for a TYPE block, not a variable of derived TYPE. |
842 | ;; Hence no need to add CLASS for F2003. | |
ee30478d | 843 | (defconst f90-type-def-re |
5ab33946 GM |
844 | ;; type word |
845 | ;; type :: word | |
846 | ;; type, stuff :: word | |
d1f21341 | 847 | ;; type, bind(c) :: word |
5ab33946 | 848 | ;; NOT "type (" |
d1f21341 GM |
849 | "\\<\\(type\\)\\>\\(?:\\(?:[^()\n]*\\|\ |
850 | .*,[ \t]*bind[ \t]*([ \t]*c[ \t]*)[ \t]*\\)::\\)?[ \t]*\\(\\sw+\\)" | |
e7272ece | 851 | "Regexp matching the definition of a derived type.") |
ec2f376f | 852 | |
5ab33946 GM |
853 | (defconst f90-typeis-re |
854 | "\\<\\(class\\|type\\)[ \t]*is[ \t]*(" | |
855 | "Regexp matching a CLASS/TYPE IS statement.") | |
856 | ||
ec2f376f | 857 | (defconst f90-no-break-re |
b0d5b05b | 858 | (regexp-opt '("**" "//" "=>" ">=" "<=" "==" "/=" "(/" "/)") 'paren) |
3f150a60 GM |
859 | "Regexp specifying two-character tokens not to split when breaking lines. |
860 | Each token has one or more of the characters from `f90-break-delimiters'. | |
861 | Note that if only one of the characters is from that variable, | |
862 | then the presence of the token here allows a line-break before or | |
863 | after the other character, where a break would not normally be | |
864 | allowed. This minor issue currently only affects \"(/\" and \"/)\".") | |
ec2f376f GM |
865 | |
866 | (defvar f90-cache-position nil | |
867 | "Temporary position used to speed up region operations.") | |
034a9d40 | 868 | (make-variable-buffer-local 'f90-cache-position) |
ec2f376f | 869 | |
b974df0a | 870 | \f |
799dee7a GM |
871 | ;; Hideshow support. |
872 | (defconst f90-end-block-re | |
fcca5273 | 873 | (concat "^[ \t0-9]*\\<end[ \t]*" |
799dee7a | 874 | (regexp-opt '("do" "if" "forall" "function" "interface" |
fcca5273 | 875 | "module" "program" "select" "subroutine" |
5d8e0d43 | 876 | "type" "where" "enum" "associate" "submodule") t) |
5ab33946 | 877 | "\\>") |
fcca5273 | 878 | "Regexp matching the end of an F90 \"block\", from the line start. |
799dee7a GM |
879 | Used in the F90 entry in `hs-special-modes-alist'.") |
880 | ||
881 | ;; Ignore the fact that FUNCTION, SUBROUTINE, WHERE, FORALL have a | |
fcca5273 | 882 | ;; following "(". DO, CASE, IF can have labels. |
799dee7a GM |
883 | (defconst f90-start-block-re |
884 | (concat | |
885 | "^[ \t0-9]*" ; statement number | |
886 | "\\(\\(" | |
887 | "\\(\\sw+[ \t]*:[ \t]*\\)?" ; structure label | |
5ab33946 | 888 | "\\(do\\|select[ \t]*\\(case\\|type\\)\\|" |
fcca5273 GM |
889 | ;; See comments in fortran-start-block-re for the problems of IF. |
890 | "if[ \t]*(\\(.*\\|" | |
891 | ".*\n\\([^if]*\\([^i].\\|.[^f]\\|.\\>\\)\\)\\)\\<then\\|" | |
799dee7a GM |
892 | ;; Distinguish WHERE block from isolated WHERE. |
893 | "\\(where\\|forall\\)[ \t]*(.*)[ \t]*\\(!\\|$\\)\\)\\)" | |
894 | "\\|" | |
5ab33946 GM |
895 | ;; Avoid F2003 "type is" in "select type", |
896 | ;; and also variables of derived type "type (foo)". | |
897 | ;; "type, foo" must be a block (?). | |
b1ca7740 GM |
898 | "type[ \t,]\\(" |
899 | "[^i(!\n\"\& \t]\\|" ; not-i( | |
900 | "i[^s!\n\"\& \t]\\|" ; i not-s | |
901 | "is\\sw\\)\\|" | |
5d8e0d43 GM |
902 | ;; "abstract interface" is F2003; "submodule" is F2008. |
903 | "program\\|\\(?:abstract[ \t]*\\)?interface\\|\\(?:sub\\)?module\\|" | |
5ab33946 GM |
904 | ;; "enum", but not "enumerator". |
905 | "function\\|subroutine\\|enum[^e]\\|associate" | |
799dee7a GM |
906 | "\\)" |
907 | "[ \t]*") | |
fcca5273 | 908 | "Regexp matching the start of an F90 \"block\", from the line start. |
799dee7a GM |
909 | A simple regexp cannot do this in fully correct fashion, so this |
910 | tries to strike a compromise between complexity and flexibility. | |
911 | Used in the F90 entry in `hs-special-modes-alist'.") | |
912 | ||
913 | ;; hs-special-modes-alist is autoloaded. | |
914 | (add-to-list 'hs-special-modes-alist | |
915 | `(f90-mode ,f90-start-block-re ,f90-end-block-re | |
916 | "!" f90-end-of-block nil)) | |
917 | ||
918 | \f | |
ec2f376f | 919 | ;; Imenu support. |
b1ca7740 GM |
920 | ;; FIXME trivial to extend this to enum. Worth it? |
921 | (defun f90-imenu-type-matcher () | |
922 | "Search backward for the start of a derived type. | |
923 | Set subexpression 1 in the match-data to the name of the type." | |
5d16fdd7 | 924 | (let (found) |
b1ca7740 GM |
925 | (while (and (re-search-backward "^[ \t0-9]*type[ \t]*" nil t) |
926 | (not (setq found | |
927 | (save-excursion | |
928 | (goto-char (match-end 0)) | |
929 | (unless (looking-at "\\(is\\>\\|(\\)") | |
930 | (or (looking-at "\\(\\sw+\\)") | |
931 | (re-search-forward | |
932 | "[ \t]*::[ \t]*\\(\\sw+\\)" | |
933 | (line-end-position) t)))))))) | |
934 | found)) | |
935 | ||
ee30478d | 936 | (defvar f90-imenu-generic-expression |
b974df0a | 937 | (let ((good-char "[^!\"\&\n \t]") (not-e "[^e!\n\"\& \t]") |
b1ca7740 | 938 | (not-n "[^n!\n\"\& \t]") (not-d "[^d!\n\"\& \t]") |
5d16fdd7 SM |
939 | ;; (not-ib "[^i(!\n\"\& \t]") (not-s "[^s!\n\"\& \t]") |
940 | ) | |
b974df0a EN |
941 | (list |
942 | '(nil "^[ \t0-9]*program[ \t]+\\(\\sw+\\)" 1) | |
5d8e0d43 GM |
943 | '("Submodules" "^[ \t0-9]*submodule[ \t]*([^)\n]+)[ \t]*\ |
944 | \\(\\sw+\\)[ \t]*\\(!\\|$\\)" 1) | |
b974df0a | 945 | '("Modules" "^[ \t0-9]*module[ \t]+\\(\\sw+\\)[ \t]*\\(!\\|$\\)" 1) |
b1ca7740 GM |
946 | (list "Types" 'f90-imenu-type-matcher 1) |
947 | ;; Does not handle: "type[, stuff] :: foo". | |
948 | ;;; (format "^[ \t0-9]*type[ \t]+\\(\\(%s\\|i%s\\|is\\sw\\)\\sw*\\)" | |
949 | ;;; not-ib not-s) | |
950 | ;;; 1) | |
951 | ;; Can't get the subexpression numbers to match in the two branches. | |
952 | ;;; (format "^[ \t0-9]*type\\([ \t]*,.*\\(::\\)[ \t]*\\(\\sw+\\)\\|[ \t]+\\(\\(%s\\|i%s\\|is\\sw\\)\\sw*\\)\\)" not-ib not-s) | |
953 | ;;; 3) | |
b974df0a | 954 | (list |
69658465 | 955 | "Procedures" |
b974df0a EN |
956 | (concat |
957 | "^[ \t0-9]*" | |
958 | "\\(" | |
ec2f376f GM |
959 | ;; At least three non-space characters before function/subroutine. |
960 | ;; Check that the last three non-space characters do not spell E N D. | |
b974df0a EN |
961 | "[^!\"\&\n]*\\(" |
962 | not-e good-char good-char "\\|" | |
963 | good-char not-n good-char "\\|" | |
964 | good-char good-char not-d "\\)" | |
965 | "\\|" | |
ec2f376f | 966 | ;; Less than three non-space characters before function/subroutine. |
b974df0a EN |
967 | good-char "?" good-char "?" |
968 | "\\)" | |
969 | "[ \t]*\\(function\\|subroutine\\)[ \t]+\\(\\sw+\\)") | |
69658465 | 970 | 4))) |
a729409a | 971 | "Value for `imenu-generic-expression' in F90 mode.") |
ee30478d | 972 | |
b974df0a | 973 | (defun f90-add-imenu-menu () |
b974df0a | 974 | "Add an imenu menu to the menubar." |
87ee2359 | 975 | (interactive) |
34ba7e3d | 976 | (if (lookup-key (current-local-map) [menu-bar index]) |
5c2a80ad GM |
977 | (message "%s" "F90-imenu already exists.") |
978 | (imenu-add-to-menubar "F90-imenu") | |
901e8d1d | 979 | (redraw-frame (selected-frame)))) |
b974df0a | 980 | |
034a9d40 | 981 | \f |
ec2f376f | 982 | ;; Abbrevs have generally two letters, except standard types `c, `i, `r, `t. |
5d16fdd7 SM |
983 | (define-abbrev-table 'f90-mode-abbrev-table |
984 | (mapcar (lambda (e) (list (car e) (cdr e) nil :system t)) | |
985 | '(("`al" . "allocate" ) | |
986 | ("`ab" . "allocatable" ) | |
987 | ("`ai" . "abstract interface") | |
988 | ("`as" . "assignment" ) | |
989 | ("`asy" . "asynchronous" ) | |
990 | ("`ba" . "backspace" ) | |
991 | ("`bd" . "block data" ) | |
992 | ("`c" . "character" ) | |
993 | ("`cl" . "close" ) | |
994 | ("`cm" . "common" ) | |
995 | ("`cx" . "complex" ) | |
996 | ("`cn" . "contains" ) | |
997 | ("`cy" . "cycle" ) | |
998 | ("`de" . "deallocate" ) | |
999 | ("`df" . "define" ) | |
1000 | ("`di" . "dimension" ) | |
1001 | ("`dp" . "double precision") | |
1002 | ("`dw" . "do while" ) | |
1003 | ("`el" . "else" ) | |
1004 | ("`eli" . "else if" ) | |
1005 | ("`elw" . "elsewhere" ) | |
1006 | ("`em" . "elemental" ) | |
1007 | ("`e" . "enumerator" ) | |
1008 | ("`eq" . "equivalence" ) | |
1009 | ("`ex" . "external" ) | |
1010 | ("`ey" . "entry" ) | |
1011 | ("`fl" . "forall" ) | |
1012 | ("`fo" . "format" ) | |
1013 | ("`fu" . "function" ) | |
1014 | ("`fa" . ".false." ) | |
1015 | ("`im" . "implicit none") | |
1016 | ("`in" . "include" ) | |
1017 | ("`i" . "integer" ) | |
1018 | ("`it" . "intent" ) | |
1019 | ("`if" . "interface" ) | |
1020 | ("`lo" . "logical" ) | |
1021 | ("`mo" . "module" ) | |
1022 | ("`na" . "namelist" ) | |
1023 | ("`nu" . "nullify" ) | |
1024 | ("`op" . "optional" ) | |
1025 | ("`pa" . "parameter" ) | |
1026 | ("`po" . "pointer" ) | |
1027 | ("`pr" . "print" ) | |
1028 | ("`pi" . "private" ) | |
1029 | ("`pm" . "program" ) | |
1030 | ("`pr" . "protected" ) | |
1031 | ("`pu" . "public" ) | |
1032 | ("`r" . "real" ) | |
1033 | ("`rc" . "recursive" ) | |
1034 | ("`rt" . "return" ) | |
1035 | ("`rw" . "rewind" ) | |
1036 | ("`se" . "select" ) | |
1037 | ("`sq" . "sequence" ) | |
1038 | ("`su" . "subroutine" ) | |
1039 | ("`ta" . "target" ) | |
1040 | ("`tr" . ".true." ) | |
1041 | ("`t" . "type" ) | |
1042 | ("`vo" . "volatile" ) | |
1043 | ("`wh" . "where" ) | |
1044 | ("`wr" . "write" ))) | |
1045 | "Abbrev table for F90 mode." | |
1046 | ;; Accept ` as the first char of an abbrev. Also allow _ in abbrevs. | |
1047 | :regexp "\\(?:[^[:word:]_`]\\|^\\)\\(`?[[:word:]_]+\\)[^[:word:]_]*") | |
0761b294 | 1048 | \f |
034a9d40 | 1049 | ;;;###autoload |
e75c1e7d | 1050 | (define-derived-mode f90-mode prog-mode "F90" |
87ee2359 | 1051 | "Major mode for editing Fortran 90,95 code in free format. |
a729409a | 1052 | For fixed format code, use `fortran-mode'. |
034a9d40 | 1053 | |
a729409a | 1054 | \\[f90-indent-line] indents the current line. |
ec2f376f | 1055 | \\[f90-indent-new-line] indents current line and creates a new\ |
034a9d40 | 1056 | indented line. |
87ee2359 | 1057 | \\[f90-indent-subprogram] indents the current subprogram. |
034a9d40 RS |
1058 | |
1059 | Type `? or `\\[help-command] to display a list of built-in\ | |
1060 | abbrevs for F90 keywords. | |
1061 | ||
1062 | Key definitions: | |
1063 | \\{f90-mode-map} | |
1064 | ||
1065 | Variables controlling indentation style and extra features: | |
1066 | ||
ec2f376f GM |
1067 | `f90-do-indent' |
1068 | Extra indentation within do blocks (default 3). | |
1069 | `f90-if-indent' | |
5ab33946 | 1070 | Extra indentation within if/select/where/forall blocks (default 3). |
ec2f376f | 1071 | `f90-type-indent' |
5ab33946 | 1072 | Extra indentation within type/enum/interface/block-data blocks (default 3). |
ec2f376f GM |
1073 | `f90-program-indent' |
1074 | Extra indentation within program/module/subroutine/function blocks | |
1075 | (default 2). | |
1076 | `f90-continuation-indent' | |
1077 | Extra indentation applied to continuation lines (default 5). | |
1078 | `f90-comment-region' | |
e3f5ce56 GM |
1079 | String inserted by function \\[f90-comment-region] at start of each |
1080 | line in region (default \"!!!$\"). | |
ec2f376f GM |
1081 | `f90-indented-comment-re' |
1082 | Regexp determining the type of comment to be intended like code | |
1083 | (default \"!\"). | |
1084 | `f90-directive-comment-re' | |
1085 | Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented | |
1086 | (default \"!hpf\\\\$\"). | |
1087 | `f90-break-delimiters' | |
1088 | Regexp holding list of delimiters at which lines may be broken | |
1089 | (default \"[-+*/><=,% \\t]\"). | |
1090 | `f90-break-before-delimiters' | |
1091 | Non-nil causes `f90-do-auto-fill' to break lines before delimiters | |
1092 | (default t). | |
1093 | `f90-beginning-ampersand' | |
1094 | Automatic insertion of \& at beginning of continuation lines (default t). | |
1095 | `f90-smart-end' | |
1096 | From an END statement, check and fill the end using matching block start. | |
1097 | Allowed values are 'blink, 'no-blink, and nil, which determine | |
1098 | whether to blink the matching beginning (default 'blink). | |
1099 | `f90-auto-keyword-case' | |
1100 | Automatic change of case of keywords (default nil). | |
1101 | The possibilities are 'downcase-word, 'upcase-word, 'capitalize-word. | |
1102 | `f90-leave-line-no' | |
1103 | Do not left-justify line numbers (default nil). | |
034a9d40 RS |
1104 | |
1105 | Turning on F90 mode calls the value of the variable `f90-mode-hook' | |
1106 | with no args, if that value is non-nil." | |
e75c1e7d | 1107 | :group 'f90 |
e75c1e7d | 1108 | :abbrev-table f90-mode-abbrev-table |
e3f5ce56 GM |
1109 | (set (make-local-variable 'indent-line-function) 'f90-indent-line) |
1110 | (set (make-local-variable 'indent-region-function) 'f90-indent-region) | |
e3f5ce56 GM |
1111 | (set (make-local-variable 'comment-start) "!") |
1112 | (set (make-local-variable 'comment-start-skip) "!+ *") | |
1113 | (set (make-local-variable 'comment-indent-function) 'f90-comment-indent) | |
1114 | (set (make-local-variable 'abbrev-all-caps) t) | |
1115 | (set (make-local-variable 'normal-auto-fill-function) 'f90-do-auto-fill) | |
70186f7f | 1116 | (setq indent-tabs-mode nil) ; auto buffer local |
e3f5ce56 GM |
1117 | (set (make-local-variable 'font-lock-defaults) |
1118 | '((f90-font-lock-keywords f90-font-lock-keywords-1 | |
1119 | f90-font-lock-keywords-2 | |
1120 | f90-font-lock-keywords-3 | |
1121 | f90-font-lock-keywords-4) | |
1122 | nil t)) | |
45d1e4d4 | 1123 | (set (make-local-variable 'imenu-case-fold-search) t) |
e3f5ce56 | 1124 | (set (make-local-variable 'imenu-generic-expression) |
a729409a GM |
1125 | f90-imenu-generic-expression) |
1126 | (set (make-local-variable 'beginning-of-defun-function) | |
1127 | 'f90-beginning-of-subprogram) | |
1128 | (set (make-local-variable 'end-of-defun-function) 'f90-end-of-subprogram) | |
d2d15846 | 1129 | (set (make-local-variable 'add-log-current-defun-function) |
e75c1e7d | 1130 | #'f90-current-defun)) |
ec2f376f | 1131 | |
034a9d40 | 1132 | \f |
ec2f376f | 1133 | ;; Inline-functions. |
034a9d40 | 1134 | (defsubst f90-in-string () |
d14e6bbe | 1135 | "Return non-nil if point is inside a string. |
ec2f376f | 1136 | Checks from `point-min', or `f90-cache-position', if that is non-nil |
d14e6bbe | 1137 | and lies before point." |
034a9d40 | 1138 | (let ((beg-pnt |
640f9e26 GM |
1139 | (if (and f90-cache-position (> (point) f90-cache-position)) |
1140 | f90-cache-position | |
1141 | (point-min)))) | |
034a9d40 | 1142 | (nth 3 (parse-partial-sexp beg-pnt (point))))) |
69658465 | 1143 | |
034a9d40 | 1144 | (defsubst f90-in-comment () |
d14e6bbe | 1145 | "Return non-nil if point is inside a comment. |
ec2f376f | 1146 | Checks from `point-min', or `f90-cache-position', if that is non-nil |
d14e6bbe | 1147 | and lies before point." |
034a9d40 | 1148 | (let ((beg-pnt |
640f9e26 GM |
1149 | (if (and f90-cache-position (> (point) f90-cache-position)) |
1150 | f90-cache-position | |
1151 | (point-min)))) | |
034a9d40 RS |
1152 | (nth 4 (parse-partial-sexp beg-pnt (point))))) |
1153 | ||
1154 | (defsubst f90-line-continued () | |
d14e6bbe GM |
1155 | "Return t if the current line is a continued one. |
1156 | This includes comment lines embedded in continued lines, but | |
1157 | not the last line of a continued statement." | |
034a9d40 | 1158 | (save-excursion |
6734e165 GM |
1159 | (beginning-of-line) |
1160 | (while (and (looking-at "[ \t]*\\(!\\|$\\)") (zerop (forward-line -1)))) | |
e3f5ce56 GM |
1161 | (end-of-line) |
1162 | (while (f90-in-comment) | |
1163 | (search-backward "!" (line-beginning-position)) | |
1164 | (skip-chars-backward "!")) | |
1165 | (skip-chars-backward " \t") | |
1166 | (= (preceding-char) ?&))) | |
034a9d40 | 1167 | |
748dd5a8 GM |
1168 | ;; GM this is not right, eg a continuation line starting with a number. |
1169 | ;; Need f90-code-start-position function. | |
1170 | ;; And yet, things seems to work with this... | |
7aee8047 GM |
1171 | ;; cf f90-indent-line |
1172 | ;; (beginning-of-line) ; digits after & \n are not line-nos | |
1173 | ;; (if (not (save-excursion (and (f90-previous-statement) | |
1174 | ;; (f90-line-continued)))) | |
1175 | ;; (f90-indent-line-no) | |
034a9d40 RS |
1176 | (defsubst f90-current-indentation () |
1177 | "Return indentation of current line. | |
1178 | Line-numbers are considered whitespace characters." | |
e3f5ce56 | 1179 | (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9"))) |
034a9d40 RS |
1180 | |
1181 | (defsubst f90-indent-to (col &optional no-line-number) | |
1182 | "Indent current line to column COL. | |
d14e6bbe GM |
1183 | If optional argument NO-LINE-NUMBER is nil, jump over a possible |
1184 | line-number before indenting." | |
034a9d40 | 1185 | (beginning-of-line) |
748dd5a8 | 1186 | (or no-line-number |
034a9d40 RS |
1187 | (skip-chars-forward " \t0-9")) |
1188 | (delete-horizontal-space) | |
748dd5a8 GM |
1189 | ;; Leave >= 1 space after line number. |
1190 | (indent-to col (if (zerop (current-column)) 0 1))) | |
034a9d40 | 1191 | |
034a9d40 | 1192 | (defsubst f90-get-present-comment-type () |
d14e6bbe | 1193 | "If point lies within a comment, return the string starting the comment. |
718d0706 GM |
1194 | For example, \"!\" or \"!!\", followed by the appropriate amount of |
1195 | whitespace, if any." | |
1196 | ;; Include the whitespace for consistent auto-filling of comment blocks. | |
034a9d40 | 1197 | (save-excursion |
e3f5ce56 GM |
1198 | (when (f90-in-comment) |
1199 | (beginning-of-line) | |
718d0706 | 1200 | (re-search-forward "!+[ \t]*" (line-end-position)) |
e3f5ce56 | 1201 | (while (f90-in-string) |
718d0706 GM |
1202 | (re-search-forward "!+[ \t]*" (line-end-position))) |
1203 | (match-string-no-properties 0)))) | |
034a9d40 RS |
1204 | |
1205 | (defsubst f90-equal-symbols (a b) | |
ec2f376f | 1206 | "Compare strings A and B neglecting case and allowing for nil value." |
f14ca250 GM |
1207 | (equal (if a (downcase a) nil) |
1208 | (if b (downcase b) nil))) | |
034a9d40 | 1209 | |
034a9d40 | 1210 | (defsubst f90-looking-at-do () |
d14e6bbe GM |
1211 | "Return (\"do\" NAME) if a do statement starts after point. |
1212 | NAME is nil if the statement has no label." | |
f14ca250 | 1213 | (if (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(do\\)\\>") |
0db701f0 | 1214 | (list (match-string 3) (match-string 2)))) |
ee30478d KH |
1215 | |
1216 | (defsubst f90-looking-at-select-case () | |
5ab33946 | 1217 | "Return (\"select\" NAME) if a select statement starts after point. |
d14e6bbe | 1218 | NAME is nil if the statement has no label." |
f14ca250 | 1219 | (if (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\ |
5ab33946 | 1220 | \\(select\\)[ \t]*\\(case\\|type\\)[ \t]*(") |
748dd5a8 | 1221 | (list (match-string 3) (match-string 2)))) |
034a9d40 RS |
1222 | |
1223 | (defsubst f90-looking-at-if-then () | |
d14e6bbe GM |
1224 | "Return (\"if\" NAME) if an if () then statement starts after point. |
1225 | NAME is nil if the statement has no label." | |
034a9d40 | 1226 | (save-excursion |
f14ca250 GM |
1227 | (when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\\(if\\)\\>") |
1228 | (let ((struct (match-string 3)) | |
748dd5a8 | 1229 | (label (match-string 2)) |
f14ca250 GM |
1230 | (pos (scan-lists (point) 1 0))) |
1231 | (and pos (goto-char pos)) | |
5c2a80ad GM |
1232 | (skip-chars-forward " \t") |
1233 | (if (or (looking-at "then\\>") | |
1234 | (when (f90-line-continued) | |
1235 | (f90-next-statement) | |
1236 | (skip-chars-forward " \t0-9&") | |
1237 | (looking-at "then\\>"))) | |
1238 | (list struct label)))))) | |
034a9d40 | 1239 | |
5ab33946 GM |
1240 | ;; FIXME label? |
1241 | (defsubst f90-looking-at-associate () | |
1242 | "Return (\"associate\") if an associate block starts after point." | |
1243 | (if (looking-at "\\<\\(associate\\)[ \t]*(") | |
1244 | (list (match-string 1)))) | |
1245 | ||
b32a3d99 | 1246 | (defsubst f90-looking-at-where-or-forall () |
d14e6bbe GM |
1247 | "Return (KIND NAME) if a where or forall block starts after point. |
1248 | NAME is nil if the statement has no label." | |
f14ca250 GM |
1249 | (save-excursion |
1250 | (when (looking-at "\\(\\(\\sw+\\)[ \t]*:\\)?[ \t]*\ | |
1251 | \\(where\\|forall\\)\\>") | |
1252 | (let ((struct (match-string 3)) | |
748dd5a8 | 1253 | (label (match-string 2)) |
f14ca250 GM |
1254 | (pos (scan-lists (point) 1 0))) |
1255 | (and pos (goto-char pos)) | |
1256 | (skip-chars-forward " \t") | |
1257 | (if (looking-at "\\(!\\|$\\)") (list struct label)))))) | |
034a9d40 RS |
1258 | |
1259 | (defsubst f90-looking-at-type-like () | |
5ab33946 | 1260 | "Return (KIND NAME) if a type/enum/interface/block-data starts after point. |
7cf3f3d6 | 1261 | NAME is non-nil only for type and certain interfaces." |
69658465 | 1262 | (cond |
5ab33946 | 1263 | ((save-excursion |
5fe2902f | 1264 | (and (looking-at "\\<type\\>[ \t]*") |
5ab33946 GM |
1265 | (goto-char (match-end 0)) |
1266 | (not (looking-at "\\(is\\>\\|(\\)")) | |
1267 | (or (looking-at "\\(\\sw+\\)") | |
1268 | (re-search-forward "[ \t]*::[ \t]*\\(\\sw+\\)" | |
1269 | (line-end-position) t)))) | |
1270 | (list "type" (match-string 1))) | |
1271 | ;;; ((and (not (looking-at f90-typeis-re)) | |
1272 | ;;; (looking-at f90-type-def-re)) | |
1273 | ;;; (list (match-string 1) (match-string 2))) | |
7cf3f3d6 GM |
1274 | ((looking-at "\\<\\(interface\\)\\>[ \t]*") |
1275 | (list (match-string 1) | |
1276 | (save-excursion | |
1277 | (goto-char (match-end 0)) | |
1278 | (if (or (looking-at "\\(operator\\|assignment\\|read\\|\ | |
1279 | write\\)[ \t]*([^)\n]*)") | |
1280 | (looking-at "\\sw+")) | |
1281 | (match-string 0))))) | |
1282 | ((looking-at "\\(enum\\|block[ \t]*data\\)\\>") | |
5ab33946 GM |
1283 | (list (match-string 1) nil)) |
1284 | ((looking-at "abstract[ \t]*\\(interface\\)\\>") | |
6734e165 | 1285 | (list (match-string 1) nil)))) |
034a9d40 RS |
1286 | |
1287 | (defsubst f90-looking-at-program-block-start () | |
d14e6bbe | 1288 | "Return (KIND NAME) if a program block with name NAME starts after point." |
784d007b | 1289 | ;;;NAME is nil for an un-named main PROGRAM block." |
034a9d40 | 1290 | (cond |
ee30478d | 1291 | ((looking-at "\\(program\\)[ \t]+\\(\\sw+\\)\\>") |
6734e165 | 1292 | (list (match-string 1) (match-string 2))) |
034a9d40 | 1293 | ((and (not (looking-at "module[ \t]*procedure\\>")) |
640f9e26 | 1294 | (looking-at "\\(module\\)[ \t]+\\(\\sw+\\)\\>")) |
6734e165 | 1295 | (list (match-string 1) (match-string 2))) |
5d8e0d43 GM |
1296 | ((looking-at "\\(submodule\\)[ \t]*([^)\n]+)[ \t]*\\(\\sw+\\)\\>") |
1297 | (list (match-string 1) (match-string 2))) | |
b974df0a | 1298 | ((and (not (looking-at "end[ \t]*\\(function\\|subroutine\\)")) |
640f9e26 | 1299 | (looking-at "[^!'\"\&\n]*\\(function\\|subroutine\\)[ \t]+\ |
748dd5a8 | 1300 | \\(\\sw+\\)")) |
6734e165 | 1301 | (list (match-string 1) (match-string 2))))) |
784d007b GM |
1302 | ;; Following will match an un-named main program block; however |
1303 | ;; one needs to check if there is an actual PROGRAM statement after | |
1304 | ;; point (and before any END program). Adding this will require | |
1305 | ;; change to eg f90-calculate-indent. | |
1306 | ;;; ((save-excursion | |
1307 | ;;; (not (f90-previous-statement))) | |
1308 | ;;; '("program" nil)))) | |
034a9d40 RS |
1309 | |
1310 | (defsubst f90-looking-at-program-block-end () | |
d14e6bbe | 1311 | "Return (KIND NAME) if a block with name NAME ends after point." |
7cf3f3d6 GM |
1312 | (cond ((looking-at "end[ \t]*\\(interface\\)[ \t]*\\(\ |
1313 | \\(?:assignment\\|operator\\|read\\|write\\)[ \t]*([^)\n]*)\\)") | |
1314 | (list (match-string 1) (match-string 2))) | |
1315 | ((looking-at (concat "end[ \t]*" f90-blocks-re | |
1316 | "?\\([ \t]+\\(\\sw+\\)\\)?\\>")) | |
1317 | (list (match-string 1) (match-string 3))))) | |
034a9d40 RS |
1318 | |
1319 | (defsubst f90-comment-indent () | |
ec2f376f GM |
1320 | "Return the indentation to be used for a comment starting at point. |
1321 | Used for `comment-indent-function' by F90 mode. | |
1322 | \"!!!\", `f90-directive-comment-re', variable `f90-comment-region' return 0. | |
1323 | `f90-indented-comment-re' (if not trailing code) calls `f90-calculate-indent'. | |
89fa1ef5 | 1324 | All others return `comment-column', leaving at least one space after code." |
034a9d40 | 1325 | (cond ((looking-at "!!!") 0) |
640f9e26 GM |
1326 | ((and f90-directive-comment-re |
1327 | (looking-at f90-directive-comment-re)) 0) | |
1328 | ((looking-at (regexp-quote f90-comment-region)) 0) | |
1329 | ((and (looking-at f90-indented-comment-re) | |
1330 | ;; Don't attempt to indent trailing comment as code. | |
1331 | (save-excursion | |
1332 | (skip-chars-backward " \t") | |
1333 | (bolp))) | |
1334 | (f90-calculate-indent)) | |
1335 | (t (save-excursion | |
b464e0ee GM |
1336 | (skip-chars-backward " \t") |
1337 | (max (if (bolp) 0 (1+ (current-column))) comment-column))))) | |
034a9d40 RS |
1338 | |
1339 | (defsubst f90-present-statement-cont () | |
d14e6bbe GM |
1340 | "Return continuation properties of present statement. |
1341 | Possible return values are: | |
1342 | single - statement is not continued. | |
1343 | begin - current line is the first in a continued statement. | |
1344 | end - current line is the last in a continued statement | |
1345 | middle - current line is neither first nor last in a continued statement. | |
1346 | Comment lines embedded amongst continued lines return 'middle." | |
034a9d40 RS |
1347 | (let (pcont cont) |
1348 | (save-excursion | |
e3f5ce56 | 1349 | (setq pcont (if (f90-previous-statement) (f90-line-continued)))) |
034a9d40 RS |
1350 | (setq cont (f90-line-continued)) |
1351 | (cond ((and (not pcont) (not cont)) 'single) | |
640f9e26 GM |
1352 | ((and (not pcont) cont) 'begin) |
1353 | ((and pcont (not cont)) 'end) | |
1354 | ((and pcont cont) 'middle) | |
1355 | (t (error "The impossible occurred"))))) | |
034a9d40 RS |
1356 | |
1357 | (defsubst f90-indent-line-no () | |
d14e6bbe GM |
1358 | "If `f90-leave-line-no' is nil, left-justify a line number. |
1359 | Leaves point at the first non-blank character after the line number. | |
1360 | Call from beginning of line." | |
748dd5a8 GM |
1361 | (and (null f90-leave-line-no) (looking-at "[ \t]+[0-9]") |
1362 | (delete-horizontal-space)) | |
034a9d40 RS |
1363 | (skip-chars-forward " \t0-9")) |
1364 | ||
1365 | (defsubst f90-no-block-limit () | |
d14e6bbe GM |
1366 | "Return nil if point is at the edge of a code block. |
1367 | Searches line forward for \"function\" or \"subroutine\", | |
1368 | if all else fails." | |
748dd5a8 GM |
1369 | (save-excursion |
1370 | (not (or (looking-at "end") | |
1371 | (looking-at "\\(do\\|if\\|else\\(if\\|where\\)?\ | |
5ab33946 | 1372 | \\|select[ \t]*\\(case\\|type\\)\\|case\\|where\\|forall\\)\\>") |
5d8e0d43 | 1373 | (looking-at "\\(program\\|\\(?:sub\\)?module\\|\ |
b1ca7740 | 1374 | \\(?:abstract[ \t]*\\)?interface\\|block[ \t]*data\\)\\>") |
748dd5a8 GM |
1375 | (looking-at "\\(contains\\|\\sw+[ \t]*:\\)") |
1376 | (looking-at f90-type-def-re) | |
1377 | (re-search-forward "\\(function\\|subroutine\\)" | |
1378 | (line-end-position) t))))) | |
034a9d40 RS |
1379 | |
1380 | (defsubst f90-update-line () | |
d14e6bbe GM |
1381 | "Change case of current line as per `f90-auto-keyword-case'." |
1382 | (if f90-auto-keyword-case | |
1383 | (f90-change-keywords f90-auto-keyword-case | |
1384 | (line-beginning-position) (line-end-position)))) | |
034a9d40 | 1385 | \f |
d694ccd7 | 1386 | (defun f90-electric-insert (&optional arg) |
d14e6bbe | 1387 | "Change keyword case and auto-fill line as operators are inserted." |
d694ccd7 GM |
1388 | (interactive "*p") |
1389 | (self-insert-command arg) | |
d14e6bbe GM |
1390 | (if auto-fill-function (f90-do-auto-fill) ; also updates line |
1391 | (f90-update-line))) | |
1392 | ||
055e4eea GM |
1393 | ;; Behave like self-insert-command for delete-selection-mode (bug#5593). |
1394 | (put 'f90-electric-insert 'delete-selection t) | |
7cae52cf | 1395 | |
034a9d40 RS |
1396 | (defun f90-get-correct-indent () |
1397 | "Get correct indent for a line starting with line number. | |
1398 | Does not check type and subprogram indentation." | |
239da61d | 1399 | (let ((epnt (line-end-position)) icol) |
034a9d40 RS |
1400 | (save-excursion |
1401 | (while (and (f90-previous-statement) | |
239da61d | 1402 | (or (memq (f90-present-statement-cont) '(middle end)) |
640f9e26 | 1403 | (looking-at "[ \t]*[0-9]")))) |
034a9d40 RS |
1404 | (setq icol (current-indentation)) |
1405 | (beginning-of-line) | |
5c2a80ad GM |
1406 | (when (re-search-forward "\\(if\\|do\\|select\\|where\\|forall\\)" |
1407 | (line-end-position) t) | |
e3f5ce56 GM |
1408 | (beginning-of-line) |
1409 | (skip-chars-forward " \t") | |
5c2a80ad GM |
1410 | (cond ((f90-looking-at-do) |
1411 | (setq icol (+ icol f90-do-indent))) | |
1412 | ((or (f90-looking-at-if-then) | |
1413 | (f90-looking-at-where-or-forall) | |
1414 | (f90-looking-at-select-case)) | |
5ab33946 GM |
1415 | (setq icol (+ icol f90-if-indent))) |
1416 | ((f90-looking-at-associate) | |
1417 | (setq icol (+ icol f90-associate-indent)))) | |
5c2a80ad | 1418 | (end-of-line)) |
034a9d40 | 1419 | (while (re-search-forward |
640f9e26 GM |
1420 | "\\(if\\|do\\|select\\|where\\|forall\\)" epnt t) |
1421 | (beginning-of-line) | |
e3f5ce56 | 1422 | (skip-chars-forward " \t0-9") |
640f9e26 | 1423 | (cond ((f90-looking-at-do) |
e3f5ce56 GM |
1424 | (setq icol (+ icol f90-do-indent))) |
1425 | ((or (f90-looking-at-if-then) | |
1426 | (f90-looking-at-where-or-forall) | |
1427 | (f90-looking-at-select-case)) | |
1428 | (setq icol (+ icol f90-if-indent))) | |
5ab33946 GM |
1429 | ((f90-looking-at-associate) |
1430 | (setq icol (+ icol f90-associate-indent))) | |
e3f5ce56 GM |
1431 | ((looking-at f90-end-if-re) |
1432 | (setq icol (- icol f90-if-indent))) | |
5ab33946 GM |
1433 | ((looking-at f90-end-associate-re) |
1434 | (setq icol (- icol f90-associate-indent))) | |
e3f5ce56 GM |
1435 | ((looking-at "end[ \t]*do\\>") |
1436 | (setq icol (- icol f90-do-indent)))) | |
640f9e26 | 1437 | (end-of-line)) |
034a9d40 | 1438 | icol))) |
69658465 | 1439 | |
034a9d40 RS |
1440 | (defun f90-calculate-indent () |
1441 | "Calculate the indent column based on previous statements." | |
1442 | (interactive) | |
1443 | (let (icol cont (case-fold-search t) (pnt (point))) | |
1444 | (save-excursion | |
1445 | (if (not (f90-previous-statement)) | |
b78cbdf7 GM |
1446 | ;; If f90-previous-statement returns nil, we must have been |
1447 | ;; called from on or before the first line of the first statement. | |
640f9e26 | 1448 | (setq icol (if (save-excursion |
b78cbdf7 GM |
1449 | ;; f90-previous-statement has moved us over |
1450 | ;; comment/blank lines, so we need to get | |
1451 | ;; back to the first code statement. | |
1452 | (when (looking-at "[ \t]*\\([!#]\\|$\\)") | |
1453 | (f90-next-statement)) | |
1454 | (skip-chars-forward " \t0-9") | |
784d007b GM |
1455 | (f90-looking-at-program-block-start)) |
1456 | 0 | |
1457 | ;; No explicit PROGRAM start statement. | |
1458 | f90-program-indent)) | |
640f9e26 GM |
1459 | (setq cont (f90-present-statement-cont)) |
1460 | (if (eq cont 'end) | |
1461 | (while (not (eq 'begin (f90-present-statement-cont))) | |
1462 | (f90-previous-statement))) | |
1463 | (cond ((eq cont 'begin) | |
1464 | (setq icol (+ (f90-current-indentation) | |
1465 | f90-continuation-indent))) | |
1466 | ((eq cont 'middle) (setq icol (current-indentation))) | |
1467 | (t (setq icol (f90-current-indentation)) | |
1468 | (skip-chars-forward " \t") | |
1469 | (if (looking-at "[0-9]") | |
1470 | (setq icol (f90-get-correct-indent)) | |
1471 | (cond ((or (f90-looking-at-if-then) | |
1472 | (f90-looking-at-where-or-forall) | |
1473 | (f90-looking-at-select-case) | |
1474 | (looking-at f90-else-like-re)) | |
1475 | (setq icol (+ icol f90-if-indent))) | |
1476 | ((f90-looking-at-do) | |
1477 | (setq icol (+ icol f90-do-indent))) | |
1478 | ((f90-looking-at-type-like) | |
1479 | (setq icol (+ icol f90-type-indent))) | |
5ab33946 GM |
1480 | ((f90-looking-at-associate) |
1481 | (setq icol (+ icol f90-associate-indent))) | |
640f9e26 GM |
1482 | ((or (f90-looking-at-program-block-start) |
1483 | (looking-at "contains[ \t]*\\($\\|!\\)")) | |
1484 | (setq icol (+ icol f90-program-indent))))) | |
1485 | (goto-char pnt) | |
1486 | (beginning-of-line) | |
1487 | (cond ((looking-at "[ \t]*$")) | |
1488 | ((looking-at "[ \t]*#") ; check for cpp directive | |
1489 | (setq icol 0)) | |
1490 | (t | |
1491 | (skip-chars-forward " \t0-9") | |
1492 | (cond ((or (looking-at f90-else-like-re) | |
1493 | (looking-at f90-end-if-re)) | |
1494 | (setq icol (- icol f90-if-indent))) | |
1495 | ((looking-at "end[ \t]*do\\>") | |
1496 | (setq icol (- icol f90-do-indent))) | |
1497 | ((looking-at f90-end-type-re) | |
1498 | (setq icol (- icol f90-type-indent))) | |
5ab33946 GM |
1499 | ((looking-at f90-end-associate-re) |
1500 | (setq icol (- icol f90-associate-indent))) | |
640f9e26 GM |
1501 | ((or (looking-at "contains[ \t]*\\(!\\|$\\)") |
1502 | (f90-looking-at-program-block-end)) | |
599aeab9 | 1503 | (setq icol (- icol f90-program-indent)))))))))) |
034a9d40 RS |
1504 | icol)) |
1505 | \f | |
034a9d40 RS |
1506 | (defun f90-previous-statement () |
1507 | "Move point to beginning of the previous F90 statement. | |
784d007b GM |
1508 | If no previous statement is found (i.e. if called from the first |
1509 | statement in the buffer), move to the start of the buffer and | |
1510 | return nil. A statement is a line which is neither blank nor a | |
1511 | comment." | |
034a9d40 RS |
1512 | (interactive) |
1513 | (let (not-first-statement) | |
1514 | (beginning-of-line) | |
1515 | (while (and (setq not-first-statement (zerop (forward-line -1))) | |
640f9e26 | 1516 | (looking-at "[ \t0-9]*\\(!\\|$\\|#\\)"))) |
034a9d40 RS |
1517 | not-first-statement)) |
1518 | ||
1519 | (defun f90-next-statement () | |
1520 | "Move point to beginning of the next F90 statement. | |
1521 | Return nil if no later statement is found." | |
1522 | (interactive) | |
1523 | (let (not-last-statement) | |
1524 | (beginning-of-line) | |
1525 | (while (and (setq not-last-statement | |
640f9e26 GM |
1526 | (and (zerop (forward-line 1)) |
1527 | (not (eobp)))) | |
1528 | (looking-at "[ \t0-9]*\\(!\\|$\\)"))) | |
034a9d40 RS |
1529 | not-last-statement)) |
1530 | ||
1531 | (defun f90-beginning-of-subprogram () | |
76bccf35 | 1532 | "Move point to the beginning of the current subprogram. |
ec2f376f | 1533 | Return (TYPE NAME), or nil if not found." |
034a9d40 RS |
1534 | (interactive) |
1535 | (let ((count 1) (case-fold-search t) matching-beg) | |
e3f5ce56 | 1536 | (beginning-of-line) |
76bccf35 | 1537 | (while (and (> count 0) |
640f9e26 | 1538 | (re-search-backward f90-program-block-re nil 'move)) |
e3f5ce56 GM |
1539 | (beginning-of-line) |
1540 | (skip-chars-forward " \t0-9") | |
1541 | (cond ((setq matching-beg (f90-looking-at-program-block-start)) | |
1542 | (setq count (1- count))) | |
1543 | ((f90-looking-at-program-block-end) | |
1544 | (setq count (1+ count))))) | |
034a9d40 RS |
1545 | (beginning-of-line) |
1546 | (if (zerop count) | |
640f9e26 | 1547 | matching-beg |
784d007b GM |
1548 | ;; Note this includes the case of an un-named main program, |
1549 | ;; in which case we go to (point-min). | |
32226619 JB |
1550 | (if (called-interactively-p 'interactive) |
1551 | (message "No beginning found")) | |
034a9d40 RS |
1552 | nil))) |
1553 | ||
1554 | (defun f90-end-of-subprogram () | |
76bccf35 | 1555 | "Move point to the end of the current subprogram. |
ec2f376f | 1556 | Return (TYPE NAME), or nil if not found." |
034a9d40 | 1557 | (interactive) |
7aee8047 | 1558 | (let ((case-fold-search t) |
575b6746 | 1559 | (count 1) |
7aee8047 | 1560 | matching-end) |
034a9d40 | 1561 | (end-of-line) |
76bccf35 | 1562 | (while (and (> count 0) |
640f9e26 | 1563 | (re-search-forward f90-program-block-re nil 'move)) |
e3f5ce56 GM |
1564 | (beginning-of-line) |
1565 | (skip-chars-forward " \t0-9") | |
034a9d40 | 1566 | (cond ((f90-looking-at-program-block-start) |
640f9e26 GM |
1567 | (setq count (1+ count))) |
1568 | ((setq matching-end (f90-looking-at-program-block-end)) | |
1569 | (setq count (1- count)))) | |
034a9d40 | 1570 | (end-of-line)) |
6f1d50da GM |
1571 | ;; This means f90-end-of-subprogram followed by f90-start-of-subprogram |
1572 | ;; has a net non-zero effect, which seems odd. | |
1573 | ;;; (forward-line 1) | |
034a9d40 | 1574 | (if (zerop count) |
640f9e26 | 1575 | matching-end |
32226619 JB |
1576 | (if (called-interactively-p 'interactive) |
1577 | (message "No end found")) | |
034a9d40 RS |
1578 | nil))) |
1579 | ||
6f1d50da GM |
1580 | |
1581 | (defun f90-end-of-block (&optional num) | |
1582 | "Move point forward to the end of the current code block. | |
1583 | With optional argument NUM, go forward that many balanced blocks. | |
784d007b GM |
1584 | If NUM is negative, go backward to the start of a block. Checks |
1585 | for consistency of block types and labels (if present), and | |
1586 | completes outermost block if `f90-smart-end' is non-nil. | |
1587 | Interactively, pushes mark before moving point." | |
6f1d50da | 1588 | (interactive "p") |
7938ab41 GM |
1589 | ;; Can move some distance. |
1590 | (if (called-interactively-p 'any) (push-mark (point) t)) | |
784d007b GM |
1591 | (and num (< num 0) (f90-beginning-of-block (- num))) |
1592 | (let ((f90-smart-end (if f90-smart-end 'no-blink)) ; for final match-end | |
6f1d50da GM |
1593 | (case-fold-search t) |
1594 | (count (or num 1)) | |
1595 | start-list start-this start-type start-label end-type end-label) | |
6f1d50da GM |
1596 | (end-of-line) ; probably want this |
1597 | (while (and (> count 0) (re-search-forward f90-blocks-re nil 'move)) | |
1598 | (beginning-of-line) | |
1599 | (skip-chars-forward " \t0-9") | |
1600 | (cond ((or (f90-in-string) (f90-in-comment))) | |
1601 | ((setq start-this | |
1602 | (or | |
1603 | (f90-looking-at-do) | |
1604 | (f90-looking-at-select-case) | |
1605 | (f90-looking-at-type-like) | |
5ab33946 | 1606 | (f90-looking-at-associate) |
6f1d50da GM |
1607 | (f90-looking-at-program-block-start) |
1608 | (f90-looking-at-if-then) | |
1609 | (f90-looking-at-where-or-forall))) | |
1610 | (setq start-list (cons start-this start-list) ; not add-to-list! | |
1611 | count (1+ count))) | |
1612 | ((looking-at (concat "end[ \t]*" f90-blocks-re | |
1613 | "[ \t]*\\(\\sw+\\)?")) | |
1614 | (setq end-type (match-string 1) | |
1615 | end-label (match-string 2) | |
1616 | count (1- count)) | |
1617 | ;; Check any internal blocks. | |
1618 | (when start-list | |
1619 | (setq start-this (car start-list) | |
1620 | start-list (cdr start-list) | |
1621 | start-type (car start-this) | |
1622 | start-label (cadr start-this)) | |
748dd5a8 | 1623 | (or (f90-equal-symbols start-type end-type) |
6f1d50da GM |
1624 | (error "End type `%s' does not match start type `%s'" |
1625 | end-type start-type)) | |
748dd5a8 | 1626 | (or (f90-equal-symbols start-label end-label) |
6f1d50da GM |
1627 | (error "End label `%s' does not match start label `%s'" |
1628 | end-label start-label))))) | |
1629 | (end-of-line)) | |
76bccf35 | 1630 | (if (> count 0) (error "Missing block end")) |
6f1d50da | 1631 | ;; Check outermost block. |
784d007b GM |
1632 | (when f90-smart-end |
1633 | (save-excursion | |
1634 | (beginning-of-line) | |
1635 | (skip-chars-forward " \t0-9") | |
1636 | (f90-match-end))))) | |
6f1d50da GM |
1637 | |
1638 | (defun f90-beginning-of-block (&optional num) | |
1639 | "Move point backwards to the start of the current code block. | |
1640 | With optional argument NUM, go backward that many balanced blocks. | |
1641 | If NUM is negative, go forward to the end of a block. | |
1642 | Checks for consistency of block types and labels (if present). | |
784d007b GM |
1643 | Does not check the outermost block, because it may be incomplete. |
1644 | Interactively, pushes mark before moving point." | |
6f1d50da | 1645 | (interactive "p") |
7938ab41 | 1646 | (if (called-interactively-p 'any) (push-mark (point) t)) |
784d007b | 1647 | (and num (< num 0) (f90-end-of-block (- num))) |
6f1d50da GM |
1648 | (let ((case-fold-search t) |
1649 | (count (or num 1)) | |
748dd5a8 GM |
1650 | end-list end-this end-type end-label |
1651 | start-this start-type start-label) | |
6f1d50da GM |
1652 | (beginning-of-line) ; probably want this |
1653 | (while (and (> count 0) (re-search-backward f90-blocks-re nil 'move)) | |
1654 | (beginning-of-line) | |
1655 | (skip-chars-forward " \t0-9") | |
1656 | (cond ((or (f90-in-string) (f90-in-comment))) | |
1657 | ((looking-at (concat "end[ \t]*" f90-blocks-re | |
1658 | "[ \t]*\\(\\sw+\\)?")) | |
1659 | (setq end-list (cons (list (match-string 1) (match-string 2)) | |
1660 | end-list) | |
1661 | count (1+ count))) | |
1662 | ((setq start-this | |
1663 | (or | |
1664 | (f90-looking-at-do) | |
1665 | (f90-looking-at-select-case) | |
1666 | (f90-looking-at-type-like) | |
5ab33946 | 1667 | (f90-looking-at-associate) |
6f1d50da GM |
1668 | (f90-looking-at-program-block-start) |
1669 | (f90-looking-at-if-then) | |
1670 | (f90-looking-at-where-or-forall))) | |
1671 | (setq start-type (car start-this) | |
1672 | start-label (cadr start-this) | |
1673 | count (1- count)) | |
1674 | ;; Check any internal blocks. | |
1675 | (when end-list | |
1676 | (setq end-this (car end-list) | |
1677 | end-list (cdr end-list) | |
1678 | end-type (car end-this) | |
1679 | end-label (cadr end-this)) | |
748dd5a8 | 1680 | (or (f90-equal-symbols start-type end-type) |
6f1d50da GM |
1681 | (error "Start type `%s' does not match end type `%s'" |
1682 | start-type end-type)) | |
748dd5a8 | 1683 | (or (f90-equal-symbols start-label end-label) |
6f1d50da GM |
1684 | (error "Start label `%s' does not match end label `%s'" |
1685 | start-label end-label)))))) | |
784d007b GM |
1686 | ;; Includes an un-named main program block. |
1687 | (if (> count 0) (error "Missing block start")))) | |
6f1d50da | 1688 | |
76bccf35 GM |
1689 | (defun f90-next-block (&optional num) |
1690 | "Move point forward to the next end or start of a code block. | |
1691 | With optional argument NUM, go forward that many blocks. | |
1692 | If NUM is negative, go backwards. | |
1693 | A block is a subroutine, if-endif, etc." | |
6f1d50da | 1694 | (interactive "p") |
76bccf35 GM |
1695 | (let ((case-fold-search t) |
1696 | (count (if num (abs num) 1))) | |
1697 | (while (and (> count 0) | |
1698 | (if (> num 0) (re-search-forward f90-blocks-re nil 'move) | |
1699 | (re-search-backward f90-blocks-re nil 'move))) | |
6f1d50da GM |
1700 | (beginning-of-line) |
1701 | (skip-chars-forward " \t0-9") | |
76bccf35 GM |
1702 | (cond ((or (f90-in-string) (f90-in-comment))) |
1703 | ((or | |
1704 | (looking-at "end[ \t]*") | |
1705 | (f90-looking-at-do) | |
1706 | (f90-looking-at-select-case) | |
1707 | (f90-looking-at-type-like) | |
5ab33946 | 1708 | (f90-looking-at-associate) |
76bccf35 GM |
1709 | (f90-looking-at-program-block-start) |
1710 | (f90-looking-at-if-then) | |
1711 | (f90-looking-at-where-or-forall)) | |
1712 | (setq count (1- count)))) | |
1713 | (if (> num 0) (end-of-line) | |
1714 | (beginning-of-line))))) | |
1715 | ||
1716 | ||
1717 | (defun f90-previous-block (&optional num) | |
1718 | "Move point backward to the previous end or start of a code block. | |
1719 | With optional argument NUM, go backward that many blocks. | |
1720 | If NUM is negative, go forwards. | |
1721 | A block is a subroutine, if-endif, etc." | |
6f1d50da | 1722 | (interactive "p") |
76bccf35 | 1723 | (f90-next-block (- (or num 1)))) |
6f1d50da GM |
1724 | |
1725 | ||
034a9d40 | 1726 | (defun f90-mark-subprogram () |
a729409a | 1727 | "Put mark at end of F90 subprogram, point at beginning, push mark." |
034a9d40 RS |
1728 | (interactive) |
1729 | (let ((pos (point)) program) | |
1730 | (f90-end-of-subprogram) | |
0ee7f068 | 1731 | (push-mark) |
034a9d40 RS |
1732 | (goto-char pos) |
1733 | (setq program (f90-beginning-of-subprogram)) | |
a445370f | 1734 | (if (featurep 'xemacs) |
0ee7f068 | 1735 | (zmacs-activate-region) |
1bb3ae5c | 1736 | (setq mark-active t |
0ee7f068 | 1737 | deactivate-mark nil)) |
034a9d40 RS |
1738 | program)) |
1739 | ||
1740 | (defun f90-comment-region (beg-region end-region) | |
1741 | "Comment/uncomment every line in the region. | |
d14e6bbe GM |
1742 | Insert the variable `f90-comment-region' at the start of every line |
1743 | in the region, or, if already present, remove it." | |
034a9d40 | 1744 | (interactive "*r") |
748dd5a8 | 1745 | (let ((end (copy-marker end-region))) |
034a9d40 RS |
1746 | (goto-char beg-region) |
1747 | (beginning-of-line) | |
1748 | (if (looking-at (regexp-quote f90-comment-region)) | |
640f9e26 | 1749 | (delete-region (point) (match-end 0)) |
034a9d40 | 1750 | (insert f90-comment-region)) |
e3f5ce56 | 1751 | (while (and (zerop (forward-line 1)) |
640f9e26 | 1752 | (< (point) end)) |
034a9d40 | 1753 | (if (looking-at (regexp-quote f90-comment-region)) |
640f9e26 GM |
1754 | (delete-region (point) (match-end 0)) |
1755 | (insert f90-comment-region))) | |
034a9d40 RS |
1756 | (set-marker end nil))) |
1757 | ||
1758 | (defun f90-indent-line (&optional no-update) | |
87ee2359 GM |
1759 | "Indent current line as F90 code. |
1760 | Unless optional argument NO-UPDATE is non-nil, call `f90-update-line' | |
1761 | after indenting." | |
a729409a | 1762 | (interactive "*P") |
748dd5a8 GM |
1763 | (let ((case-fold-search t) |
1764 | (pos (point-marker)) | |
1765 | indent no-line-number) | |
1766 | (beginning-of-line) ; digits after & \n are not line-nos | |
1767 | (if (not (save-excursion (and (f90-previous-statement) | |
1768 | (f90-line-continued)))) | |
1769 | (f90-indent-line-no) | |
1770 | (setq no-line-number t) | |
1771 | (skip-chars-forward " \t")) | |
034a9d40 | 1772 | (if (looking-at "!") |
640f9e26 | 1773 | (setq indent (f90-comment-indent)) |
ab09adac | 1774 | (and f90-smart-end (looking-at "end") |
748dd5a8 | 1775 | (f90-match-end)) |
034a9d40 | 1776 | (setq indent (f90-calculate-indent))) |
748dd5a8 | 1777 | (or (= indent (current-column)) |
e3f5ce56 | 1778 | (f90-indent-to indent no-line-number)) |
034a9d40 RS |
1779 | ;; If initial point was within line's indentation, |
1780 | ;; position after the indentation. Else stay at same point in text. | |
748dd5a8 GM |
1781 | (and (< (point) pos) |
1782 | (goto-char pos)) | |
69658465 | 1783 | (if auto-fill-function |
7aee8047 GM |
1784 | ;; GM NO-UPDATE not honoured, since this calls f90-update-line. |
1785 | (f90-do-auto-fill) | |
748dd5a8 | 1786 | (or no-update (f90-update-line))) |
034a9d40 RS |
1787 | (set-marker pos nil))) |
1788 | ||
1789 | (defun f90-indent-new-line () | |
a729409a | 1790 | "Re-indent current line, insert a newline and indent the newline. |
87ee2359 | 1791 | An abbrev before point is expanded if the variable `abbrev-mode' is non-nil. |
034a9d40 | 1792 | If run in the middle of a line, the line is not broken." |
a729409a | 1793 | (interactive "*") |
748dd5a8 GM |
1794 | (if abbrev-mode (expand-abbrev)) |
1795 | (beginning-of-line) ; reindent where likely to be needed | |
7aee8047 | 1796 | (f90-indent-line) ; calls indent-line-no, update-line |
748dd5a8 | 1797 | (end-of-line) |
640f9e26 | 1798 | (delete-horizontal-space) ; destroy trailing whitespace |
748dd5a8 GM |
1799 | (let ((string (f90-in-string)) |
1800 | (cont (f90-line-continued))) | |
1801 | (and string (not cont) (insert "&")) | |
034a9d40 | 1802 | (newline) |
748dd5a8 | 1803 | (if (or string (and cont f90-beginning-ampersand)) (insert "&"))) |
7aee8047 | 1804 | (f90-indent-line 'no-update)) ; nothing to update |
034a9d40 RS |
1805 | |
1806 | ||
784d007b GM |
1807 | ;; TODO not add spaces to empty lines at the start. |
1808 | ;; Why is second line getting extra indent over first? | |
034a9d40 RS |
1809 | (defun f90-indent-region (beg-region end-region) |
1810 | "Indent every line in region by forward parsing." | |
1811 | (interactive "*r") | |
748dd5a8 | 1812 | (let ((end-region-mark (copy-marker end-region)) |
e3f5ce56 | 1813 | (save-point (point-marker)) |
cbc121c7 | 1814 | (case-fold-search t) |
640f9e26 | 1815 | block-list ind-lev ind-curr ind-b cont struct beg-struct end-struct) |
034a9d40 | 1816 | (goto-char beg-region) |
ec2f376f | 1817 | ;; First find a line which is not a continuation line or comment. |
034a9d40 | 1818 | (beginning-of-line) |
ee30478d | 1819 | (while (and (looking-at "[ \t]*[0-9]*\\(!\\|#\\|[ \t]*$\\)") |
640f9e26 GM |
1820 | (progn (f90-indent-line 'no-update) |
1821 | (zerop (forward-line 1))) | |
1822 | (< (point) end-region-mark))) | |
034a9d40 | 1823 | (setq cont (f90-present-statement-cont)) |
f38184aa | 1824 | (while (and (memq cont '(middle end)) |
640f9e26 | 1825 | (f90-previous-statement)) |
034a9d40 | 1826 | (setq cont (f90-present-statement-cont))) |
ec2f376f | 1827 | ;; Process present line for beginning of block. |
034a9d40 RS |
1828 | (setq f90-cache-position (point)) |
1829 | (f90-indent-line 'no-update) | |
e3f5ce56 GM |
1830 | (setq ind-lev (f90-current-indentation) |
1831 | ind-curr ind-lev) | |
1832 | (beginning-of-line) | |
1833 | (skip-chars-forward " \t0-9") | |
1834 | (setq struct nil | |
1835 | ind-b (cond ((setq struct (f90-looking-at-do)) f90-do-indent) | |
640f9e26 GM |
1836 | ((or (setq struct (f90-looking-at-if-then)) |
1837 | (setq struct (f90-looking-at-select-case)) | |
1838 | (setq struct (f90-looking-at-where-or-forall)) | |
1839 | (looking-at f90-else-like-re)) | |
1840 | f90-if-indent) | |
1841 | ((setq struct (f90-looking-at-type-like)) | |
1842 | f90-type-indent) | |
5ab33946 GM |
1843 | ((setq struct (f90-looking-at-associate)) |
1844 | f90-associate-indent) | |
640f9e26 | 1845 | ((or (setq struct (f90-looking-at-program-block-start)) |
34ba7e3d | 1846 | (looking-at "contains[ \t]*\\($\\|!\\)")) |
640f9e26 | 1847 | f90-program-indent))) |
034a9d40 RS |
1848 | (if ind-b (setq ind-lev (+ ind-lev ind-b))) |
1849 | (if struct (setq block-list (cons struct block-list))) | |
1850 | (while (and (f90-line-continued) (zerop (forward-line 1)) | |
640f9e26 | 1851 | (< (point) end-region-mark)) |
ec2f376f GM |
1852 | (if (looking-at "[ \t]*!") |
1853 | (f90-indent-to (f90-comment-indent)) | |
748dd5a8 GM |
1854 | (or (= (current-indentation) |
1855 | (+ ind-curr f90-continuation-indent)) | |
ec2f376f GM |
1856 | (f90-indent-to (+ ind-curr f90-continuation-indent) 'no-line-no)))) |
1857 | ;; Process all following lines. | |
d14e6bbe | 1858 | (while (and (zerop (forward-line 1)) (< (point) end-region-mark)) |
034a9d40 RS |
1859 | (beginning-of-line) |
1860 | (f90-indent-line-no) | |
1861 | (setq f90-cache-position (point)) | |
1862 | (cond ((looking-at "[ \t]*$") (setq ind-curr 0)) | |
640f9e26 GM |
1863 | ((looking-at "[ \t]*#") (setq ind-curr 0)) |
1864 | ((looking-at "!") (setq ind-curr (f90-comment-indent))) | |
1865 | ((f90-no-block-limit) (setq ind-curr ind-lev)) | |
1866 | ((looking-at f90-else-like-re) (setq ind-curr | |
1867 | (- ind-lev f90-if-indent))) | |
1868 | ((looking-at "contains[ \t]*\\($\\|!\\)") | |
1869 | (setq ind-curr (- ind-lev f90-program-indent))) | |
1870 | ((setq ind-b | |
1871 | (cond ((setq struct (f90-looking-at-do)) f90-do-indent) | |
1872 | ((or (setq struct (f90-looking-at-if-then)) | |
1873 | (setq struct (f90-looking-at-select-case)) | |
1874 | (setq struct (f90-looking-at-where-or-forall))) | |
1875 | f90-if-indent) | |
1876 | ((setq struct (f90-looking-at-type-like)) | |
1877 | f90-type-indent) | |
5ab33946 GM |
1878 | ((setq struct (f90-looking-at-associate)) |
1879 | f90-associate-indent) | |
640f9e26 GM |
1880 | ((setq struct (f90-looking-at-program-block-start)) |
1881 | f90-program-indent))) | |
1882 | (setq ind-curr ind-lev) | |
1883 | (if ind-b (setq ind-lev (+ ind-lev ind-b))) | |
1884 | (setq block-list (cons struct block-list))) | |
1885 | ((setq end-struct (f90-looking-at-program-block-end)) | |
1886 | (setq beg-struct (car block-list) | |
1887 | block-list (cdr block-list)) | |
1888 | (if f90-smart-end | |
1889 | (save-excursion | |
599aeab9 GM |
1890 | (f90-block-match (car beg-struct) (cadr beg-struct) |
1891 | (car end-struct) (cadr end-struct)))) | |
640f9e26 GM |
1892 | (setq ind-b |
1893 | (cond ((looking-at f90-end-if-re) f90-if-indent) | |
1894 | ((looking-at "end[ \t]*do\\>") f90-do-indent) | |
1895 | ((looking-at f90-end-type-re) f90-type-indent) | |
5ab33946 GM |
1896 | ((looking-at f90-end-associate-re) |
1897 | f90-associate-indent) | |
640f9e26 GM |
1898 | ((f90-looking-at-program-block-end) |
1899 | f90-program-indent))) | |
1900 | (if ind-b (setq ind-lev (- ind-lev ind-b))) | |
1901 | (setq ind-curr ind-lev)) | |
1902 | (t (setq ind-curr ind-lev))) | |
ec2f376f | 1903 | ;; Do the indentation if necessary. |
748dd5a8 | 1904 | (or (= ind-curr (current-column)) |
640f9e26 | 1905 | (f90-indent-to ind-curr)) |
034a9d40 | 1906 | (while (and (f90-line-continued) (zerop (forward-line 1)) |
640f9e26 | 1907 | (< (point) end-region-mark)) |
ec2f376f GM |
1908 | (if (looking-at "[ \t]*!") |
1909 | (f90-indent-to (f90-comment-indent)) | |
748dd5a8 GM |
1910 | (or (= (current-indentation) |
1911 | (+ ind-curr f90-continuation-indent)) | |
ec2f376f GM |
1912 | (f90-indent-to |
1913 | (+ ind-curr f90-continuation-indent) 'no-line-no))))) | |
1914 | ;; Restore point, etc. | |
034a9d40 RS |
1915 | (setq f90-cache-position nil) |
1916 | (goto-char save-point) | |
1917 | (set-marker end-region-mark nil) | |
1918 | (set-marker save-point nil) | |
a445370f | 1919 | (if (featurep 'xemacs) |
640f9e26 | 1920 | (zmacs-deactivate-region) |
034a9d40 RS |
1921 | (deactivate-mark)))) |
1922 | ||
1923 | (defun f90-indent-subprogram () | |
ec2f376f | 1924 | "Properly indent the subprogram containing point." |
a729409a | 1925 | (interactive "*") |
034a9d40 | 1926 | (save-excursion |
e3f5ce56 | 1927 | (let ((program (f90-mark-subprogram))) |
034a9d40 | 1928 | (if program |
640f9e26 GM |
1929 | (progn |
1930 | (message "Indenting %s %s..." | |
599aeab9 | 1931 | (car program) (cadr program)) |
640f9e26 GM |
1932 | (indent-region (point) (mark) nil) |
1933 | (message "Indenting %s %s...done" | |
599aeab9 | 1934 | (car program) (cadr program))) |
640f9e26 GM |
1935 | (message "Indenting the whole file...") |
1936 | (indent-region (point) (mark) nil) | |
1937 | (message "Indenting the whole file...done"))))) | |
034a9d40 | 1938 | |
034a9d40 | 1939 | (defun f90-break-line (&optional no-update) |
87ee2359 GM |
1940 | "Break line at point, insert continuation marker(s) and indent. |
1941 | Unless in a string or comment, or if the optional argument NO-UPDATE | |
1942 | is non-nil, call `f90-update-line' after inserting the continuation marker." | |
a729409a | 1943 | (interactive "*P") |
89fa1ef5 GM |
1944 | (cond ((f90-in-string) |
1945 | (insert "&\n&")) | |
1946 | ((f90-in-comment) | |
718d0706 | 1947 | (delete-horizontal-space 'backwards) ; remove trailing whitespace |
89fa1ef5 GM |
1948 | (insert "\n" (f90-get-present-comment-type))) |
1949 | (t (insert "&") | |
1950 | (or no-update (f90-update-line)) | |
1951 | (newline 1) | |
f38184aa GM |
1952 | ;; FIXME also need leading ampersand if split lexical token (eg ==). |
1953 | ;; Or respect f90-no-break-re. | |
89fa1ef5 | 1954 | (if f90-beginning-ampersand (insert "&")))) |
84021009 | 1955 | (indent-according-to-mode)) |
69658465 | 1956 | |
034a9d40 | 1957 | (defun f90-find-breakpoint () |
87ee2359 | 1958 | "From `fill-column', search backward for break-delimiter." |
748dd5a8 GM |
1959 | (re-search-backward f90-break-delimiters (line-beginning-position)) |
1960 | (if (not f90-break-before-delimiters) | |
1961 | (forward-char (if (looking-at f90-no-break-re) 2 1)) | |
1962 | (backward-char) | |
1963 | (or (looking-at f90-no-break-re) | |
0db701f0 | 1964 | (forward-char)))) |
034a9d40 | 1965 | |
034a9d40 | 1966 | (defun f90-do-auto-fill () |
d14e6bbe GM |
1967 | "Break line if non-white characters beyond `fill-column'. |
1968 | Update keyword case first." | |
a729409a | 1969 | (interactive "*") |
ec2f376f | 1970 | ;; Break line before or after last delimiter (non-word char) if |
b974df0a | 1971 | ;; position is beyond fill-column. |
ec2f376f | 1972 | ;; Will not break **, //, or => (as specified by f90-no-break-re). |
7cae52cf | 1973 | (f90-update-line) |
d595e95d GM |
1974 | ;; Need this for `f90-electric-insert' and other f90- callers. |
1975 | (unless (and (boundp 'comment-auto-fill-only-comments) | |
1976 | comment-auto-fill-only-comments | |
1977 | (not (f90-in-comment))) | |
1978 | (while (> (current-column) fill-column) | |
1979 | (let ((pos-mark (point-marker))) | |
1980 | (move-to-column fill-column) | |
1981 | (or (f90-in-string) (f90-find-breakpoint)) | |
1982 | (f90-break-line) | |
1983 | (goto-char pos-mark) | |
1984 | (set-marker pos-mark nil))))) | |
b974df0a | 1985 | |
a259425b GM |
1986 | (defun f90-join-lines (&optional arg) |
1987 | "Join current line to previous, fix whitespace, continuation, comments. | |
a729409a | 1988 | With optional argument ARG, join current line to following line. |
a259425b GM |
1989 | Like `join-line', but handles F90 syntax." |
1990 | (interactive "*P") | |
1991 | (beginning-of-line) | |
1992 | (if arg (forward-line 1)) | |
1993 | (when (eq (preceding-char) ?\n) | |
1994 | (skip-chars-forward " \t") | |
1995 | (if (looking-at "\&") (delete-char 1)) | |
1996 | (beginning-of-line) | |
1997 | (delete-region (point) (1- (point))) | |
034a9d40 | 1998 | (skip-chars-backward " \t") |
a259425b GM |
1999 | (and (eq (preceding-char) ?&) (delete-char -1)) |
2000 | (and (f90-in-comment) | |
2001 | (looking-at "[ \t]*!+") | |
2002 | (replace-match "")) | |
2003 | (or (f90-in-string) | |
2004 | (fixup-whitespace)))) | |
034a9d40 RS |
2005 | |
2006 | (defun f90-fill-region (beg-region end-region) | |
d14e6bbe | 2007 | "Fill every line in region by forward parsing. Join lines if possible." |
034a9d40 | 2008 | (interactive "*r") |
748dd5a8 | 2009 | (let ((end-region-mark (copy-marker end-region)) |
e3f5ce56 | 2010 | (go-on t) |
640f9e26 | 2011 | f90-smart-end f90-auto-keyword-case auto-fill-function) |
034a9d40 RS |
2012 | (goto-char beg-region) |
2013 | (while go-on | |
ec2f376f | 2014 | ;; Join as much as possible. |
a729409a | 2015 | (while (progn |
a259425b GM |
2016 | (end-of-line) |
2017 | (skip-chars-backward " \t") | |
2018 | (eq (preceding-char) ?&)) | |
2019 | (f90-join-lines 'forward)) | |
ec2f376f | 2020 | ;; Chop the line if necessary. |
034a9d40 | 2021 | (while (> (save-excursion (end-of-line) (current-column)) |
640f9e26 GM |
2022 | fill-column) |
2023 | (move-to-column fill-column) | |
2024 | (f90-find-breakpoint) | |
2025 | (f90-break-line 'no-update)) | |
748dd5a8 | 2026 | (setq go-on (and (< (point) end-region-mark) |
e3f5ce56 GM |
2027 | (zerop (forward-line 1))) |
2028 | f90-cache-position (point))) | |
034a9d40 | 2029 | (setq f90-cache-position nil) |
748dd5a8 | 2030 | (set-marker end-region-mark nil) |
a445370f | 2031 | (if (featurep 'xemacs) |
640f9e26 | 2032 | (zmacs-deactivate-region) |
034a9d40 RS |
2033 | (deactivate-mark)))) |
2034 | \f | |
2035 | (defun f90-block-match (beg-block beg-name end-block end-name) | |
2036 | "Match end-struct with beg-struct and complete end-block if possible. | |
ec2f376f GM |
2037 | BEG-BLOCK is the type of block as indicated at the start (e.g., do). |
2038 | BEG-NAME is the block start name (may be nil). | |
2039 | END-BLOCK is the type of block as indicated at the end (may be nil). | |
2040 | END-NAME is the block end name (may be nil). | |
034a9d40 | 2041 | Leave point at the end of line." |
784d007b GM |
2042 | ;; Hack to deal with the case when this is called from |
2043 | ;; f90-indent-region on a program block without an explicit PROGRAM | |
2044 | ;; statement at the start. Should really be an error (?). | |
2045 | (or beg-block (setq beg-block "program")) | |
6734e165 | 2046 | (search-forward "end" (line-end-position)) |
034a9d40 | 2047 | (catch 'no-match |
784d007b | 2048 | (if (and end-block (f90-equal-symbols beg-block end-block)) |
748dd5a8 GM |
2049 | (search-forward end-block) |
2050 | (if end-block | |
2051 | (progn | |
2052 | (message "END %s does not match %s." end-block beg-block) | |
2053 | (end-of-line) | |
2054 | (throw 'no-match nil)) | |
2055 | (message "Inserting %s." beg-block) | |
2056 | (insert (concat " " beg-block)))) | |
2057 | (if (f90-equal-symbols beg-name end-name) | |
2058 | (and end-name (search-forward end-name)) | |
2059 | (cond ((and beg-name (not end-name)) | |
2060 | (message "Inserting %s." beg-name) | |
2061 | (insert (concat " " beg-name))) | |
2062 | ((and beg-name end-name) | |
2063 | (message "Replacing %s with %s." end-name beg-name) | |
2064 | (search-forward end-name) | |
2065 | (replace-match beg-name)) | |
2066 | ((and (not beg-name) end-name) | |
2067 | (message "Deleting %s." end-name) | |
2068 | (search-forward end-name) | |
2069 | (replace-match "")))) | |
2070 | (or (looking-at "[ \t]*!") (delete-horizontal-space)))) | |
034a9d40 RS |
2071 | |
2072 | (defun f90-match-end () | |
ec2f376f | 2073 | "From an end block statement, find the corresponding block and name." |
034a9d40 | 2074 | (interactive) |
748dd5a8 GM |
2075 | (let ((count 1) |
2076 | (top-of-window (window-start)) | |
640f9e26 | 2077 | (end-point (point)) |
748dd5a8 | 2078 | (case-fold-search t) |
640f9e26 | 2079 | matching-beg beg-name end-name beg-block end-block end-struct) |
5c2a80ad | 2080 | (when (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9") |
ab09adac GM |
2081 | (setq end-struct (f90-looking-at-program-block-end))) |
2082 | (setq end-block (car end-struct) | |
599aeab9 | 2083 | end-name (cadr end-struct)) |
5c2a80ad GM |
2084 | (save-excursion |
2085 | (beginning-of-line) | |
784d007b GM |
2086 | (while (and (> count 0) |
2087 | (not (= (line-beginning-position) (point-min)))) | |
2088 | (re-search-backward f90-blocks-re nil 'move) | |
e3f5ce56 | 2089 | (beginning-of-line) |
748dd5a8 GM |
2090 | ;; GM not a line number if continued line. |
2091 | ;;; (skip-chars-forward " \t") | |
2092 | ;;; (skip-chars-forward "0-9") | |
e3f5ce56 | 2093 | (skip-chars-forward " \t0-9") |
6dd52caf GM |
2094 | (cond ((or (f90-in-string) (f90-in-comment))) |
2095 | ((setq matching-beg | |
e3f5ce56 GM |
2096 | (or |
2097 | (f90-looking-at-do) | |
2098 | (f90-looking-at-if-then) | |
2099 | (f90-looking-at-where-or-forall) | |
2100 | (f90-looking-at-select-case) | |
2101 | (f90-looking-at-type-like) | |
5ab33946 | 2102 | (f90-looking-at-associate) |
784d007b GM |
2103 | (f90-looking-at-program-block-start) |
2104 | ;; Interpret a single END without a block | |
2105 | ;; start to be the END of a program block | |
2106 | ;; without an initial PROGRAM line. | |
2107 | (if (= (line-beginning-position) (point-min)) | |
2108 | '("program" nil)))) | |
e3f5ce56 | 2109 | (setq count (1- count))) |
6dd52caf | 2110 | ((looking-at (concat "end[ \t]*" f90-blocks-re)) |
e3f5ce56 | 2111 | (setq count (1+ count))))) |
6dd52caf | 2112 | (if (> count 0) |
5c2a80ad GM |
2113 | (message "No matching beginning.") |
2114 | (f90-update-line) | |
2115 | (if (eq f90-smart-end 'blink) | |
2116 | (if (< (point) top-of-window) | |
2117 | (message "Matches %s: %s" | |
2118 | (what-line) | |
2119 | (buffer-substring | |
2120 | (line-beginning-position) | |
2121 | (line-end-position))) | |
c046af95 | 2122 | (sit-for blink-matching-delay))) |
e3f5ce56 | 2123 | (setq beg-block (car matching-beg) |
599aeab9 | 2124 | beg-name (cadr matching-beg)) |
5c2a80ad GM |
2125 | (goto-char end-point) |
2126 | (beginning-of-line) | |
ab09adac | 2127 | (f90-block-match beg-block beg-name end-block end-name)))))) |
034a9d40 RS |
2128 | |
2129 | (defun f90-insert-end () | |
87ee2359 | 2130 | "Insert a complete end statement matching beginning of present block." |
a729409a | 2131 | (interactive "*") |
e3f5ce56 | 2132 | (let ((f90-smart-end (or f90-smart-end 'blink))) |
034a9d40 RS |
2133 | (insert "end") |
2134 | (f90-indent-new-line))) | |
2135 | \f | |
ec2f376f | 2136 | ;; Abbrevs and keywords. |
034a9d40 RS |
2137 | |
2138 | (defun f90-abbrev-start () | |
69658465 | 2139 | "Typing `\\[help-command] or `? lists all the F90 abbrevs. |
034a9d40 | 2140 | Any other key combination is executed normally." |
7aee8047 | 2141 | (interactive "*") |
1ba983e8 | 2142 | (insert last-command-event) |
7aee8047 GM |
2143 | (let (char event) |
2144 | (if (fboundp 'next-command-event) ; XEmacs | |
2145 | (setq event (next-command-event) | |
2c948571 | 2146 | char (and (fboundp 'event-to-character) |
640f9e26 | 2147 | (event-to-character event))) |
7aee8047 GM |
2148 | (setq event (read-event) |
2149 | char event)) | |
be550ccc | 2150 | ;; Insert char if not equal to `?', or if abbrev-mode is off. |
f38184aa | 2151 | (if (and abbrev-mode (memq char (list ?? help-char))) |
640f9e26 | 2152 | (f90-abbrev-help) |
7aee8047 | 2153 | (setq unread-command-events (list event))))) |
034a9d40 RS |
2154 | |
2155 | (defun f90-abbrev-help () | |
2156 | "List the currently defined abbrevs in F90 mode." | |
2157 | (interactive) | |
2158 | (message "Listing abbrev table...") | |
2159 | (display-buffer (f90-prepare-abbrev-list-buffer)) | |
2160 | (message "Listing abbrev table...done")) | |
2161 | ||
2162 | (defun f90-prepare-abbrev-list-buffer () | |
ec2f376f | 2163 | "Create a buffer listing the F90 mode abbreviations." |
5d16fdd7 | 2164 | (with-current-buffer (get-buffer-create "*Abbrevs*") |
034a9d40 RS |
2165 | (erase-buffer) |
2166 | (insert-abbrev-table-description 'f90-mode-abbrev-table t) | |
2167 | (goto-char (point-min)) | |
2168 | (set-buffer-modified-p nil) | |
2169 | (edit-abbrevs-mode)) | |
2170 | (get-buffer-create "*Abbrevs*")) | |
2171 | ||
2172 | (defun f90-upcase-keywords () | |
2173 | "Upcase all F90 keywords in the buffer." | |
a729409a | 2174 | (interactive "*") |
034a9d40 RS |
2175 | (f90-change-keywords 'upcase-word)) |
2176 | ||
2177 | (defun f90-capitalize-keywords () | |
2178 | "Capitalize all F90 keywords in the buffer." | |
a729409a | 2179 | (interactive "*") |
034a9d40 RS |
2180 | (f90-change-keywords 'capitalize-word)) |
2181 | ||
2182 | (defun f90-downcase-keywords () | |
2183 | "Downcase all F90 keywords in the buffer." | |
a729409a | 2184 | (interactive "*") |
034a9d40 RS |
2185 | (f90-change-keywords 'downcase-word)) |
2186 | ||
2187 | (defun f90-upcase-region-keywords (beg end) | |
2188 | "Upcase all F90 keywords in the region." | |
2189 | (interactive "*r") | |
2190 | (f90-change-keywords 'upcase-word beg end)) | |
2191 | ||
2192 | (defun f90-capitalize-region-keywords (beg end) | |
2193 | "Capitalize all F90 keywords in the region." | |
2194 | (interactive "*r") | |
2195 | (f90-change-keywords 'capitalize-word beg end)) | |
2196 | ||
2197 | (defun f90-downcase-region-keywords (beg end) | |
2198 | "Downcase all F90 keywords in the region." | |
2199 | (interactive "*r") | |
2200 | (f90-change-keywords 'downcase-word beg end)) | |
2201 | ||
2202 | ;; Change the keywords according to argument. | |
2203 | (defun f90-change-keywords (change-word &optional beg end) | |
ec2f376f | 2204 | "Change the case of F90 keywords in the region (if specified) or buffer. |
02f85cba | 2205 | CHANGE-WORD should be one of 'upcase-word, 'downcase-word, 'capitalize-word." |
034a9d40 | 2206 | (save-excursion |
e3f5ce56 GM |
2207 | (setq beg (or beg (point-min)) |
2208 | end (or end (point-max))) | |
69658465 | 2209 | (let ((keyword-re |
640f9e26 GM |
2210 | (concat "\\(" |
2211 | f90-keywords-re "\\|" f90-procedures-re "\\|" | |
2212 | f90-hpf-keywords-re "\\|" f90-operators-re "\\)")) | |
2213 | (ref-point (point-min)) | |
2214 | (modified (buffer-modified-p)) | |
e3f5ce56 | 2215 | state saveword back-point) |
034a9d40 | 2216 | (goto-char beg) |
ee30478d | 2217 | (unwind-protect |
640f9e26 GM |
2218 | (while (re-search-forward keyword-re end t) |
2219 | (unless (progn | |
5c2a80ad GM |
2220 | (setq state (parse-partial-sexp ref-point (point))) |
2221 | (or (nth 3 state) (nth 4 state) | |
748dd5a8 | 2222 | ;; GM f90-directive-comment-re? |
ec2f376f | 2223 | (save-excursion ; check for cpp directive |
5c2a80ad GM |
2224 | (beginning-of-line) |
2225 | (skip-chars-forward " \t0-9") | |
2226 | (looking-at "#")))) | |
640f9e26 GM |
2227 | (setq ref-point (point) |
2228 | back-point (save-excursion (backward-word 1) (point)) | |
e3f5ce56 | 2229 | saveword (buffer-substring back-point ref-point)) |
640f9e26 GM |
2230 | (funcall change-word -1) |
2231 | (or (string= saveword (buffer-substring back-point ref-point)) | |
2232 | (setq modified t)))) | |
5d16fdd7 | 2233 | (or modified (restore-buffer-modified-p nil)))))) |
034a9d40 | 2234 | |
d2d15846 DL |
2235 | |
2236 | (defun f90-current-defun () | |
2237 | "Function to use for `add-log-current-defun-function' in F90 mode." | |
2238 | (save-excursion | |
2239 | (nth 1 (f90-beginning-of-subprogram)))) | |
2240 | ||
784d007b GM |
2241 | (defun f90-backslash-not-special (&optional all) |
2242 | "Make the backslash character (\\) be non-special in the current buffer. | |
2243 | With optional argument ALL, change the default for all present | |
2244 | and future F90 buffers. F90 mode normally treats backslash as an | |
2245 | escape character." | |
175069ef | 2246 | (or (derived-mode-p 'f90-mode) |
784d007b GM |
2247 | (error "This function should only be used in F90 buffers")) |
2248 | (when (equal (char-syntax ?\\ ) ?\\ ) | |
2249 | (or all (set-syntax-table (copy-syntax-table (syntax-table)))) | |
2250 | (modify-syntax-entry ?\\ "."))) | |
2251 | ||
2252 | ||
034a9d40 | 2253 | (provide 'f90) |
db97b872 | 2254 | |
239da61d GM |
2255 | ;; Local Variables: |
2256 | ;; coding: utf-8 | |
2257 | ;; lexical-binding: t | |
2258 | ;; End: | |
2259 | ||
034a9d40 | 2260 | ;;; f90.el ends here |