1 ;;; f90.el --- Fortran-90 mode (free format)
2 ;; Copyright (C) 1995 Free Software Foundation, Inc.
4 ;; Author: Torbj\"orn Einarsson <T.Einarsson@clab.ericsson.se>
5 ;; Created: Sep. 21, 1995
6 ;; Keywords: fortran, f90, languages
8 ;; This program is free software; you can redistribute it and/or modify
9 ;; it under the terms of the GNU General Public License as published by
10 ;; the Free Software Foundation; either version 2 of the License, or
11 ;; (at your option) any later version.
13 ;; This program is distributed in the hope that it will be useful,
14 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
15 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 ;; GNU General Public License for more details.
18 ;; You should have received a copy of the GNU General Public License
19 ;; along with this program; if not, write to the Free Software
20 ;; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 ;; Smart mode for editing F90 programs in FREE FORMAT.
24 ;; Knows about continuation lines, named structured statements, and other
25 ;; new features in F90 including HPF (High Performance Fortran) structures.
26 ;; The basic feature is to provide an accurate indentation of F90 programs.
27 ;; In addition, there are many more features like automatic matching of all
28 ;; end statements, an auto-fill function to break long lines, a join-lines
29 ;; function which joins continued lines etc etc.
30 ;; To facilitate typing, a fairly complete list of abbreviations is provided.
31 ;; For example, `i is short-hand for integer (if abbrev-mode is on).
33 ;; There are two separate features for highlighting the code.
34 ;; 1) Upcasing or capitalizing of all keywords.
35 ;; 2) Colors/fonts using font-lock-mode. (only when using X-windows)
36 ;; Automatic upcase of downcase of keywords is controlled by the parameter
37 ;; f90-auto-keyword-case.
39 ;; The indentations of lines starting with ! is determined by the first of the
40 ;; following matches (the values in the left column are the default values):
42 ;; start-string/regexp indent variable holding start-string/regexp
44 ;; !hpf\\$ (re) 0 f90-directive-comment-re
45 ;; !!$ 0 f90-comment-region
46 ;; ! (re) as code f90-indented-comment-re
47 ;; default comment-column
49 ;; Ex: Here is the result of 3 different settings of f90-indented-comment-re
50 ;; f90-indented-comment-re !-indentation !!-indentation
52 ;; !! comment-column as code
53 ;; ![^!] as code comment-column
54 ;; Trailing comments are indented to comment-column with indent-for-comment M-;
55 ;; f90-comment-region (C-c;) toggles insertion of f90-comment-region in region.
57 ;; One common convention for free vs. fixed format is that free-format files
58 ;; have the ending .f90 while the fixed format files have the ending .f.
59 ;; To make f90-mode work, put this file in, for example, your directory
60 ;; ~/lisp, and be sure that you have the following in your .emacs-file
61 ;; (setq load-path (append load-path '("~/lisp")))
62 ;; (autoload 'f90-mode "f90"
63 ;; "Major mode for editing Fortran 90 code in free format." t)
64 ;; (setq auto-mode-alist (append auto-mode-alist
65 ;; (list '("\\.f90$" . f90-mode))))
66 ;; Once you have entered f90-mode, you may get more info by using
67 ;; the command describe-mode (C-h m). For online help describing various
68 ;; functions use C-h f <Name of function you want described>
70 ;; To customize the f90-mode for your taste, use, for example:
71 ;; (you don't have to specify values for all the parameters below)
73 ;; '(lambda () (setq f90-do-indent 3
76 ;; f90-program-indent 2
77 ;; f90-continuation-indent 5
78 ;; f90-comment-region "!!$"
79 ;; f90-directive-comment-re "!hpf\\$"
80 ;; f90-indented-comment-re "!"
81 ;; f90-break-delimiters "[-+\\*/,><=% \t]"
82 ;; f90-break-before-delimiters t
83 ;; f90-beginning-ampersand t
84 ;; f90-smart-end 'blink
85 ;; f90-auto-keyword-case nil
86 ;; f90-leave-line-no nil
87 ;; f90-startup-message t
88 ;; indent-tabs-mode nil
90 ;; ;;The rest is not default.
91 ;; (abbrev-mode 1) ; turn on abbreviation mode
92 ;; (f90-auto-fill-mode 1) ; turn on auto-filling
93 ;; (turn-on-font-lock) ; for highlighting
94 ;; (if f90-auto-keyword-case ; change case of all keywords on startup
95 ;; (f90-change-keywords f90-auto-keyword-case))
97 ;; in your .emacs file (the shown values are the defaults). You can also
98 ;; change the values of the lists f90-keywords etc.
99 ;; The auto-fill and abbreviation minor modes are accessible from the menu,
100 ;; or by using M-x f90-auto-fill-mode and M-x abbrev-mode, respectively.
103 ;; 1) Line numbers are by default left-justified. If f90-leave-line-no is
104 ;; non-nil, the line numbers are never touched.
105 ;; 2) Multi-; statements like > do i=1,20 ; j=j+i ; end do < are not handled
106 ;; correctly, but I imagine them to be rare.
107 ;; 3) Regexps for hilit19 are no longer supported.
108 ;; 4) For FIXED FORMAT code, use the ordinary fortran mode.
109 ;; 5) This mode does not work under emacs-18.x.
110 ;; 6) Preprocessor directives, i.e., lines starting with # are left-justified
111 ;; and are untouched by all case-changing commands. There is, at present, no
112 ;; mechanism for treating multi-line directives (continued by \ ).
113 ;; 7) f77 do-loops do 10 i=.. ; ; 10 continue are not correctly indented.
114 ;; You are urged to use f90-do loops (with labels if you wish).
116 ;; List of user commands
117 ;; f90-previous-statement f90-next-statement
118 ;; f90-beginning-of-subprogram f90-end-of-subprogram f90-mark-subprogram
119 ;; f90-comment-region
120 ;; f90-indent-line f90-indent-new-line
121 ;; f90-indent-region (can be called by calling indent-region)
122 ;; f90-indent-subprogram
123 ;; f90-break-line f90-join-lines
124 ;; f90-auto-fill-mode
127 ;; f90-upcase-keywords f90-upcase-region-keywords
128 ;; f90-downcase-keywords f90-downcase-region-keywords
129 ;; f90-capitalize-keywords f90-capitalize-region-keywords
131 ;; Thanks to all the people who have tested the mode. Special thanks to Jens
132 ;; Bloch Helmers for encouraging me to write this code, for creative
133 ;; suggestions as well as for the lists of hpf-commands.
134 ;; Also thanks to the authors of the fortran and pascal modes, on which some
135 ;; of this code is built.
139 (defconst bug-f90-mode "T.Einarsson@clab.ericsson.se"
140 "Address of mailing list for F90 mode bugs.")
143 (defvar f90-do-indent 3
144 "*Extra indentation applied to DO blocks.")
146 (defvar f90-if-indent 3
147 "*Extra indentation applied to IF, SELECT CASE, WHERE and FORALL blocks.")
149 (defvar f90-type-indent 3
150 "*Extra indentation applied to TYPE, INTERFACE and BLOCK DATA blocks.")
152 (defvar f90-program-indent 2
153 "*Extra indentation applied to PROGRAM/MODULE/SUBROUTINE/FUNCTION blocks.")
155 (defvar f90-continuation-indent 5
156 "*Extra indentation applied to F90 continuation lines.")
158 (defvar f90-comment-region "!!$"
159 "*String inserted by \\[f90-comment-region]\
160 at start of each line in region.")
162 (defvar f90-indented-comment-re "!"
163 "*Regexp saying which comments to be indented like code.")
165 (defvar f90-directive-comment-re "!hpf\\$"
166 "*Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented.")
168 (defvar f90-beginning-ampersand t
169 "*t makes automatic insertion of \& at beginning of continuation line.")
171 (defvar f90-smart-end 'blink
172 "*From an END statement, check and fill the end using matching block start.
173 Allowed values are 'blink, 'no-blink, and nil, which determine
174 whether to blink the matching beginning.")
176 (defvar f90-break-delimiters "[-+\\*/><=,% \t]"
177 "*Regexp holding list of delimiters at which lines may be broken.")
179 (defvar f90-break-before-delimiters t
180 "*Non-nil causes `f90-do-auto-fill' to break lines before delimiters.")
182 (defvar f90-auto-keyword-case nil
183 "*Automatic case conversion of keywords.
184 The options are 'downcase-word, 'upcase-word, 'capitalize-word and nil")
186 (defvar f90-leave-line-no nil
187 "*If nil, left-justify linenumbers.")
189 (defvar f90-startup-message t
190 "*Non-nil displays a startup message when F90 mode is first called.")
192 (defconst f90-keywords-re
193 ;;("allocate" "allocatable" "assign" "assignment" "backspace" "block"
194 ;;"call" "case" "character" "close" "common" "complex" "contains"
195 ;;"continue" "cycle" "data" "deallocate" "dimension" "do" "double" "else"
196 ;;"elseif" "elsewhere" "end" "enddo" "endfile" "endif" "entry" "equivalence"
197 ;;"exit" "external" "forall" "format" "function" "goto" "if" "implicit"
198 ;;"include" "inquire" "integer" "intent" "interface" "intrinsic" "logical"
199 ;;"module" "namelist" "none" "nullify" "only" "open" "optional" "parameter"
200 ;;"pause" "pointer" "precision" "print" "private" "procedure" "program"
201 ;;"public" "read" "real" "recursive" "return" "rewind" "save" "select"
202 ;;"sequence" "stop" "subroutine" "target" "then" "type" "use" "where"
205 "\\<\\(a\\(llocat\\(able\\|e\\)\\|ssign\\(\\|ment\\)\\)\\|b\\(ackspace\\|"
206 "lock\\)\\|c\\(a\\(ll\\|se\\)\\|haracter\\|lose\\|o\\(m\\(mon\\|plex\\)\\|"
207 "nt\\(ains\\|inue\\)\\)\\|ycle\\)\\|d\\(ata\\|eallocate\\|imension\\|"
208 "o\\(\\|uble\\)\\)\\|e\\(lse\\(\\|if\\|where\\)\\|n\\(d\\(\\|do\\|file\\|"
209 "if\\)\\|try\\)\\|quivalence\\|x\\(it\\|ternal\\)\\)\\|f\\(or\\(all\\|"
210 "mat\\)\\|unction\\)\\|goto\\|i\\(f\\|mplicit\\|n\\(clude\\|quire\\|t\\("
211 "e\\(ger\\|nt\\|rface\\)\\|rinsic\\)\\)\\)\\|logical\\|module\\|n\\("
212 "amelist\\|one\\|ullify\\)\\|o\\(nly\\|p\\(en\\|tional\\)\\)\\|p\\(a\\("
213 "rameter\\|use\\)\\|ointer\\|r\\(ecision\\|i\\(nt\\|vate\\)\\|o\\("
214 "cedure\\|gram\\)\\)\\|ublic\\)\\|re\\(a[dl]\\|cursive\\|turn\\|wind\\)\\|"
215 "s\\(ave\\|e\\(lect\\|quence\\)\\|top\\|ubroutine\\)\\|t\\(arget\\|hen\\|"
216 "ype\\)\\|use\\|w\\(h\\(ere\\|ile\\)\\|rite\\)\\)\\>")
217 "Regexp for F90 keywords.")
219 (defconst f90-keywords-level-3-re
220 ;; ("allocate" "allocatable" "assign" "assignment" "backspace" "close"
221 ;; "deallocate" "endfile" "entry" "equivalence" "external" "inquire" "intent"
222 ;; "intrinsic" "only" "open" "optional" "parameter" "pause" "pointer" "print"
223 ;; "private" "public" "read" "recursive" "rewind" "save" "select" "sequence"
226 "\\<\\(a\\(llocat\\(able\\|e\\)\\|ssign\\(\\|ment\\)\\)\\|backspace\\|"
227 "close\\|deallocate\\|e\\(n\\(dfile\\|try\\)\\|quivalence\\|xternal\\)\\|"
228 "in\\(quire\\|t\\(ent\\|rinsic\\)\\)\\|o\\(nly\\|p\\(en\\|tional\\)\\)\\|"
229 "p\\(a\\(rameter\\|use\\)\\|ointer\\|ri\\(nt\\|vate\\)\\|ublic\\)\\|re\\("
230 "ad\\|cursive\\|wind\\)\\|s\\(ave\\|e\\(lect\\|quence\\)\\)\\|target\\|"
232 "Keyword-regexp for font-lock level >= 3.")
235 (defconst f90-procedures-re
236 ;; ("abs" "achar" "acos" "adjustl" "adjustr" "aimag" "aint" "all" "allocated"
237 ;; "anint" "any" "asin" "associated" "atan" "atan2" "bit_size" "btest"
238 ;; "ceiling" "char" "cmplx" "conjg" "cos" "cosh" "count" "cshift"
239 ;; "date_and_time" "dble" "digits" "dim" "dot_product" "dprod" "eoshift"
240 ;; "epsilon" "exp" "exponent" "floor" "fraction" "huge" "iachar" "iand"
241 ;; "ibclr" "ibits" "ibset" "ichar" "ieor" "index" "int" "ior" "ishft"
242 ;; "ishftc" "kind" "lbound" "len" "len_trim" "lge" "lgt" "lle" "llt" "log"
243 ;; "logical" "log10" "matmul" "max" "maxexponent" "maxloc" "maxval" "merge"
244 ;; "min" "minexponent" "minloc" "minval" "mod" "modulo" "mvbits" "nearest"
245 ;; "nint" "not" "pack" "precision" "present" "product" "radix"
246 ;; "random_number" "random_seed" "range" "real" "repeat" "reshape"
247 ;; "rrspacing" "scale" "scan" "selected_int_kind" "selected_real_kind"
248 ;; "set_exponent" "shape" "sign" "sin" "sinh" "size" "spacing" "spread"
249 ;; "sqrt" "sum" "system_clock" "tan" "tanh" "tiny" "transfer" "transpose"
250 ;; "trim" "ubound" "unpack" "verify")
251 ;; A left paranthesis to avoid highlighting non-procedures.
252 ;; Real is taken out here to avoid highlighting declarations.
254 "\\<\\(a\\(bs\\|c\\(har\\|os\\)\\|djust[lr]\\|i\\(mag\\|nt\\)\\|ll\\(\\|"
255 "ocated\\)\\|n\\(int\\|y\\)\\|s\\(in\\|sociated\\)\\|tan2?\\)\\|b\\("
256 "it_size\\|test\\)\\|c\\(eiling\\|har\\|mplx\\|o\\(njg\\|sh?\\|unt\\)\\|"
257 "shift\\)\\|d\\(ate_and_time\\|ble\\|i\\(gits\\|m\\)\\|ot_product\\|prod"
258 "\\)\\|e\\(oshift\\|psilon\\|xp\\(\\|onent\\)\\)\\|f\\(loor\\|"
259 "raction\\)\\|huge\\|i\\(a\\(char\\|nd\\)\\|b\\(clr\\|its\\|set\\)\\|"
260 "char\\|eor\\|n\\(dex\\|t\\)\\|or\\|shftc?\\)\\|kind\\|l\\(bound\\|"
261 "en\\(\\|_trim\\)\\|g[et]\\|l[et]\\|og\\(\\|10\\|ical\\)\\)\\|m\\(a\\("
262 "tmul\\|x\\(\\|exponent\\|loc\\|val\\)\\)\\|erge\\|in\\(\\|exponent\\|"
263 "loc\\|val\\)\\|od\\(\\|ulo\\)\\|vbits\\)\\|n\\(earest\\|int\\|ot\\)\\|"
264 "p\\(ack\\|r\\(e\\(cision\\|sent\\)\\|oduct\\)\\)\\|r\\(a\\(dix\\|n\\("
265 "dom_\\(number\\|seed\\)\\|ge\\)\\)\\|e\\(peat\\|shape\\)\\|rspacing\\)\\|"
266 "s\\(ca\\(le\\|n\\)\\|e\\(lected_\\(int_kind\\|real_kind\\)\\|"
267 "t_exponent\\)\\|hape\\|i\\(gn\\|nh?\\|ze\\)\\|p\\(acing\\|read\\)\\|"
268 "qrt\\|um\\|ystem_clock\\)\\|t\\(anh?\\|iny\\|r\\(ans\\(fer\\|pose\\)\\|"
269 "im\\)\\)\\|u\\(bound\\|npack\\)\\|verify\\)[ \t]*(")
270 "Regexp whose first part matches F90 intrinsic procedures.")
272 (defconst f90-operators-re
273 ;; "and" "or" "not" "eqv" "neqv" "eq" "ne" "lt" "le" "gt" "ge" "true" "false"
275 "\\.\\(and\\|eqv?\\|false\\|g[et]\\|l[et]\\|n\\(e\\(\\|qv\\)\\|"
276 "ot\\)\\|or\\|true\\)\\.")
277 "Regexp matching intrinsic operators.")
279 (defconst f90-hpf-keywords-re
280 ;; Intrinsic procedures
281 ;; ("all_prefix" "all_scatter" "all_suffix" "any_prefix" "any_scatter"
282 ;; "any_suffix" "copy_prefix" "copy_scatter" "copy_suffix" "count_prefix"
283 ;; "count_scatter" "count_suffix" "grade_down" "grade_up" "hpf_alignment"
284 ;; "hpf_template" "hpf_distribution" "iall" "iall_prefix" "iall_scatter"
285 ;; "iall_suffix" "iany" "iany_prefix" "iany_scatter" "iany_suffix" "iparity"
286 ;; "iparity_prefix" "iparity_scatter" "iparity_suffix" "leadz"
287 ;; "maxval_prefix" "maxval_scatter" "maxval_suffix" "minval_prefix"
288 ;; "minval_scatter" "minval_suffix" "parity" "parity_prefix"
289 ;; "parity_scatter" "parity_suffix" "popcnt" "poppar" "product_prefix"
290 ;; "product_scatter" "product_suffix" "sum_prefix" "sum_scatter"
291 ;; "sum_suffix" "ilen" "number_of_processors" "processors_shape")
293 ;; ("align" "distribute" "dynamic" "inherit" "template" "processors"
294 ;; "realign" "redistribute" "independent")
296 ;; ("pure" "extrinsic" "new" "with" "onto" "block" "cyclic")
298 "\\<\\(a\\(l\\(ign\\|l_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|ny_\\("
299 "prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|block\\|c\\(o\\(py_\\(prefix\\|"
300 "s\\(catter\\|uffix\\)\\)\\|unt_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|"
301 "yclic\\)\\|d\\(istribute\\|ynamic\\)\\|extrinsic\\|grade_\\(down\\|"
302 "up\\)\\|hpf_\\(alignment\\|distribution\\|template\\)\\|i\\(a\\(ll\\(\\|"
303 "_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|ny\\(\\|_\\(prefix\\|s\\("
304 "catter\\|uffix\\)\\)\\)\\)\\|len\\|n\\(dependent\\|herit\\)\\|parity\\(\\|"
305 "_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\)\\|leadz\\|m\\(axval_\\("
306 "prefix\\|s\\(catter\\|uffix\\)\\)\\|inval_\\(prefix\\|s\\(catter\\|"
307 "uffix\\)\\)\\)\\|n\\(ew\\|umber_of_processors\\)\\|onto\\|p\\(arity\\(\\|"
308 "_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|op\\(cnt\\|par\\)\\|ro\\("
309 "cessors\\(\\|_shape\\)\\|duct_\\(prefix\\|s\\(catter\\|uffix\\)\\)\\)\\|"
310 "ure\\)\\|re\\(align\\|distribute\\)\\|sum_\\(prefix\\|s\\(catter\\|"
311 "uffix\\)\\)\\|template\\|with\\)\\>")
312 "Regexp for all HPF keywords, procedures and directives.")
314 ;; Highlighting patterns
316 (defvar f90-font-lock-keywords-1
317 (if (string-match "XEmacs" emacs-version)
319 '("\\<\\(end[ \t]*\\(program\\|module\\|function\\|subroutine\\|type\\)\\)\\>"
320 1 font-lock-keyword-face)
321 '("\\<\\(end[ \t]*\\(program\\|module\\|function\\|subroutine\\|type\\)\\)\\>[ \t]*\\(\\sw+\\)"
322 3 font-lock-function-name-face)
323 '("\\<\\(program\\|call\\|module\\|subroutine\\|function\\|use\\)\\>"
324 1 font-lock-keyword-face)
325 '("\\<\\(program\\|call\\|module\\|subroutine\\|function\\|use\\)\\>[ \t]*\\(\\sw+\\)"
326 2 font-lock-function-name-face nil t)
327 ;; Special highlighting of "module procedure foo-list"
328 '("\\<\\(module[ \t]*procedure\\)\\>" 1 font-lock-keyword-face t)
329 ;; Highlight definition of new type
330 '("\\<\\(type\\)[ \t]*\\(,.*::[ \t]*\\|[ \t]+\\)\\(\\sw+\\)"
331 1 font-lock-keyword-face)
332 '("\\<\\(type\\)[ \t]*\\(,.*::[ \t]*\\|[ \t]+\\)\\(\\sw+\\)"
333 3 font-lock-function-name-face)
334 "\\<\\(\\(end[ \t]*\\)?\\(interface\\|block[ \t]*data\\)\\|contains\\)\\>")
336 '("\\<\\(end[ \t]*\\(program\\|module\\|function\\|subroutine\\|type\\)\\)\\>[ \t]*\\(\\sw+\\)?"
337 (1 font-lock-keyword-face) (3 font-lock-function-name-face nil t))
338 '("\\<\\(program\\|call\\|module\\|subroutine\\|function\\|use\\)\\>[ \t]*\\(\\sw+\\)?"
339 (1 font-lock-keyword-face) (2 font-lock-function-name-face nil t))
340 ;; Special highlighting of "module procedure foo-list"
341 '("\\<\\(module[ \t]*procedure\\)\\>" (1 font-lock-keyword-face t))
342 ;; Highlight definition of new type
343 '("\\<\\(type\\)[ \t]*\\(,.*::[ \t]*\\|[ \t]+\\)\\(\\sw+\\)"
344 (1 font-lock-keyword-face) (3 font-lock-function-name-face))
345 "\\<\\(\\(end[ \t]*\\)?\\(interface\\|block[ \t]*data\\)\\|contains\\)\\>"))
346 "This does fairly subdued highlighting of comments and function calls.")
348 (defvar f90-font-lock-keywords-2
349 (append f90-font-lock-keywords-1
350 (if (string-match "XEmacs" emacs-version)
352 ;; Variable declarations (avoid the real function call)
353 '("^[ \t0-9]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|logical\\|type[ \t]*(\\sw+)\\)"
354 1 font-lock-type-face)
355 '("^[ \t0-9]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|logical\\|type[ \t]*(\\sw+)\\)\\(.*::\\|[ \t]*(.*)\\)?\\(.*\\)"
356 4 font-lock-doc-string-face)
357 ;; do, if and select constructs
358 '("\\<\\(end[ \t]*\\(do\\|if\\|select\\)\\)\\>"
359 1 font-lock-keyword-face)
360 '("\\<\\(end[ \t]*\\(do\\|if\\|select\\)\\)\\>\\([ \t]+\\(\\sw+\\)\\)"
361 3 font-lock-doc-string-face)
362 '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)\\(\\(if\\|do\\([ \t]*while\\)?\\|select[ \t]*case\\)\\)\\>"
363 2 font-lock-doc-string-face)
364 '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)?\\(\\(if\\|do\\([ \t]*while\\)?\\|select[ \t]*case\\)\\)\\>"
365 3 font-lock-keyword-face)
366 ;; implicit declaration
367 '("\\<\\(implicit\\)[ \t]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|logical\\|type[ \t]*(\\sw+)\\|none\\)\\>"
368 1 font-lock-keyword-face)
369 '("\\<\\(implicit\\)[ \t]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|logical\\|type[ \t]*(\\sw+)\\|none\\)\\>"
370 2 font-lock-type-face)
371 '("\\<\\(namelist\\|common\\)[ \t]*\/\\(\\sw+\\)?\/"
372 1 font-lock-keyword-face)
373 '("\\<\\(namelist\\|common\\)[ \t]*\/\\(\\sw+\\)\/"
374 2 font-lock-doc-string-face nil t)
375 '("\\<\\(where\\|forall\\)[ \t]*(" . 1)
376 "\\<e\\(lse\\([ \t]*if\\|where\\)?\\|nd[ \t]*\\(where\\|forall\\)\\)\\>"
377 "\\<\\(then\\|continue\\|format\\|include\\|stop\\|return\\)\\>"
378 '("\\<\\(exit\\|cycle\\)\\>"
379 1 font-lock-keyword-face)
380 '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)2\\>"
381 2 font-lock-doc-string-face)
382 '("\\<\\(case\\)[ \t]+\\(default\\|(\\)" . 1)
383 '("\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)"
384 1 font-lock-keyword-face)
385 '("\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)"
386 2 font-lock-doc-string-face)
387 '("^[ \t]*\\([0-9]+\\)" 1 font-lock-doc-string-face t))
389 ;; Variable declarations (avoid the real function call)
390 '("^[ \t0-9]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|logical\\|type[ \t]*(\\sw+)\\)\\(.*::\\|[ \t]*(.*)\\)?\\(.*\\)"
391 (1 font-lock-type-face) (4 font-lock-variable-name-face))
392 ;; do, if and select constructs
393 '("\\<\\(end[ \t]*\\(do\\|if\\|select\\)\\)\\>\\([ \t]+\\(\\sw+\\)\\)?"
394 (1 font-lock-keyword-face) (3 font-lock-reference-face nil t))
395 '("^[ \t0-9]*\\(\\(\\sw+\\)[ \t]*:[ \t]*\\)?\\(\\(if\\|do\\([ \t]*while\\)?\\|select[ \t]*case\\)\\)\\>"
396 (2 font-lock-reference-face nil t) (3 font-lock-keyword-face))
397 ;; implicit declaration
398 '("\\<\\(implicit\\)[ \t]*\\(real\\|integer\\|c\\(haracter\\|omplex\\)\\|logical\\|type[ \t]*(\\sw+)\\|none\\)\\>" (1 font-lock-keyword-face) (2 font-lock-type-face))
399 '("\\<\\(namelist\\|common\\)[ \t]*\/\\(\\sw+\\)?\/" (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
400 '("\\<\\(where\\|forall\\)[ \t]*(" . 1)
401 "\\<e\\(lse\\([ \t]*if\\|where\\)?\\|nd[ \t]*\\(where\\|forall\\)\\)\\>"
402 "\\<\\(then\\|continue\\|format\\|include\\|stop\\|return\\)\\>"
403 '("\\<\\(exit\\|cycle\\)[ \t]*\\(\\sw+\\)?\\>"
404 (1 font-lock-keyword-face) (2 font-lock-reference-face nil t))
405 '("\\<\\(case\\)[ \t]+\\(default\\|(\\)" . 1)
406 '("\\<\\(do\\|go *to\\)\\>[ \t]*\\([0-9]+\\)"
407 (1 font-lock-keyword-face) (2 font-lock-reference-face))
408 '("^[ \t]*\\([0-9]+\\)" (1 font-lock-reference-face t)))))
409 "Highlights declarations, do-loops and other constructions")
411 (defvar f90-font-lock-keywords-3
412 (append f90-font-lock-keywords-2
414 f90-keywords-level-3-re
416 (if (string-match "XEmacs" emacs-version)
417 (append (list f90-procedures-re) '(1 font-lock-keyword-face t))
418 (list f90-procedures-re '(1 font-lock-keyword-face t)))
419 "\\<real\\>" ; Avoid overwriting real defs.
421 "Highlights all F90 keywords and intrinsic procedures.")
423 (defvar f90-font-lock-keywords-4
424 (append f90-font-lock-keywords-3
425 (list f90-hpf-keywords-re))
426 "Highlights all F90 and HPF keywords.")
428 (defvar f90-font-lock-keywords
429 f90-font-lock-keywords-2
430 "*Default expressions to highlight in F90 mode.")
433 (defvar f90-mode-syntax-table nil
434 "Syntax table in use in F90 mode buffers.")
436 (if f90-mode-syntax-table
438 (setq f90-mode-syntax-table (make-syntax-table))
439 (modify-syntax-entry ?\! "<" f90-mode-syntax-table) ; beg. comment
440 (modify-syntax-entry ?\n ">" f90-mode-syntax-table) ; end comment
441 (modify-syntax-entry ?_ "w" f90-mode-syntax-table) ; underscore in names
442 (modify-syntax-entry ?\' "\"" f90-mode-syntax-table) ; string quote
443 (modify-syntax-entry ?\" "\"" f90-mode-syntax-table) ; string quote
444 (modify-syntax-entry ?\` "w" f90-mode-syntax-table) ; for abbrevs
445 (modify-syntax-entry ?\r " " f90-mode-syntax-table) ; return is whitespace
446 (modify-syntax-entry ?+ "." f90-mode-syntax-table)
447 (modify-syntax-entry ?- "." f90-mode-syntax-table)
448 (modify-syntax-entry ?= "." f90-mode-syntax-table)
449 (modify-syntax-entry ?* "." f90-mode-syntax-table)
450 (modify-syntax-entry ?/ "." f90-mode-syntax-table)
451 (modify-syntax-entry ?\\ "/" f90-mode-syntax-table)) ; escape chars
454 (defvar f90-mode-map ()
455 "Keymap used in F90 mode.")
459 (setq f90-mode-map (make-sparse-keymap))
460 (define-key f90-mode-map "`" 'f90-abbrev-start)
461 (define-key f90-mode-map "\C-c;" 'f90-comment-region)
462 (define-key f90-mode-map "\C-\M-a" 'f90-beginning-of-subprogram)
463 (define-key f90-mode-map "\C-\M-e" 'f90-end-of-subprogram)
464 (define-key f90-mode-map "\C-\M-h" 'f90-mark-subprogram)
465 (define-key f90-mode-map "\C-\M-q" 'f90-indent-subprogram)
466 (define-key f90-mode-map "\C-j" 'f90-indent-new-line) ; LFD equals C-j
467 (define-key f90-mode-map "\r" 'newline)
468 (define-key f90-mode-map "\C-c\r" 'f90-break-line)
469 ;; (define-key f90-mode-map [M-return] 'f90-break-line)
470 (define-key f90-mode-map "\C-c\C-d" 'f90-join-lines)
471 (define-key f90-mode-map "\C-c\C-f" 'f90-fill-region)
472 (define-key f90-mode-map "\C-c\C-p" 'f90-previous-statement)
473 (define-key f90-mode-map "\C-c\C-n" 'f90-next-statement)
474 (define-key f90-mode-map "\C-c\C-w" 'f90-insert-end)
475 (define-key f90-mode-map "\t" 'f90-indent-line))
478 (if (string-match "XEmacs" emacs-version)
479 (defvar f90-xemacs-menu
481 ["Indent Subprogram" f90-indent-subprogram t]
482 ["Mark Subprogram" f90-mark-subprogram t]
483 ["Beginning of Subprogram" f90-beginning-of-subprogram t]
484 ["End of Subprogram" f90-end-of-subprogram t]
486 ["(Un)Comment Region" f90-comment-region t]
487 ["Indent Region" indent-region t]
488 ["Fill Region" f90-fill-region t]
490 ["Break Line at Point" f90-break-line t]
491 ["Join with Next Line" f90-join-lines t]
492 ["Insert Newline" newline t]
493 ["Insert End" f90-insert-end t]
495 ["Upcase Keywords (buffer)" f90-upcase-keywords t]
496 ["Upcase Keywords (region)" f90-upcase-region-keywords
498 ["Capitalize Keywords (buffer)" f90-capitalize-keywords t]
499 ["Capitalize Keywords (region)"
500 f90-capitalize-region-keywords t]
501 ["Downcase Keywords (buffer)" f90-downcase-keywords t]
502 ["Downcase Keywords (region)"
503 f90-downcase-region-keywords t]
505 ["Toggle abbrev-mode" abbrev-mode t]
506 ["Toggle auto-fill" f90-auto-fill-mode t])
507 "XEmacs menu for F90 mode.")
509 (define-key f90-mode-map [menu-bar] (make-sparse-keymap))
510 (define-key f90-mode-map [menu-bar f90]
511 (cons "F90" (make-sparse-keymap "f90")))
512 (define-key f90-mode-map [menu-bar f90 abbrev-mode]
513 '("Toggle abbrev-mode" . abbrev-mode))
514 (define-key f90-mode-map [menu-bar f90 f90-auto-fill-mode]
515 '("Toggle auto-fill" . f90-auto-fill-mode))
516 (define-key f90-mode-map [menu-bar f90 f90-downcase-region-keywords]
517 '("Downcase Keywords (region)" . f90-downcase-region-keywords))
518 (define-key f90-mode-map [menu-bar f90 f90-downcase-keywords]
519 '("Downcase Keywords (buffer)" . f90-downcase-keywords))
520 (define-key f90-mode-map [menu-bar f90 f90-capitalize-keywords]
521 '("Capitalize Keywords (region)" . f90-capitalize-region-keywords))
522 (define-key f90-mode-map [menu-bar f90 f90-capitalize-region-keywords]
523 '("Capitalize Keywords (buffer)" . f90-capitalize-keywords))
524 (define-key f90-mode-map [menu-bar f90 f90-upcase-region-keywords]
525 '("Upcase Keywords (region)" . f90-upcase-region-keywords))
526 (define-key f90-mode-map [menu-bar f90 f90-upcase-keywords]
527 '("Upcase Keywords (buffer)" . f90-upcase-keywords))
528 (define-key f90-mode-map [menu-bar f90 f90-insert-end]
529 '("Insert end" . f90-insert-end))
530 (define-key f90-mode-map [menu-bar f90 f90-join-lines]
531 '("Join with Next Line" . f90-join-lines))
532 (define-key f90-mode-map [menu-bar f90 f90-break-line]
533 '("Break Line at Point" . f90-break-line))
534 (define-key f90-mode-map [menu-bar f90 f90-fill-region]
535 '("Fill Region" . f90-fill-region))
536 (define-key f90-mode-map [menu-bar f90 indent-region]
537 '("Indent Region" . indent-region))
538 (define-key f90-mode-map [menu-bar f90 f90-comment-region]
539 '("(Un)Comment Region" . f90-comment-region))
540 (define-key f90-mode-map [menu-bar f90 f90-end-of-subprogram]
541 '("End of Subprogram" . f90-end-of-subprogram))
542 (define-key f90-mode-map [menu-bar f90 f90-beginning-of-subprogram]
543 '("Beginning of Subprogram" . f90-beginning-of-subprogram))
544 (define-key f90-mode-map [menu-bar f90 f90-mark-subprogram]
545 '("Mark Subprogram" . f90-mark-subprogram))
546 (define-key f90-mode-map [menu-bar f90 f90-indent-subprogram]
547 '("Indent Subprogram" . f90-indent-subprogram)))
549 ;; Regexps for finding program structures.
550 (defconst f90-blocks-re
551 "\\(block[ \t]*data\\|do\\|if\\|interface\\|function\\|module\\|\
552 program\\|select\\|subroutine\\|type\\|where\\|forall\\)\\>")
553 (defconst f90-program-block-re
554 "\\(program\\|module\\|subroutine\\|function\\)")
555 (defconst f90-else-like-re
556 "\\(else\\([ \t]*if\\|where\\)?\\|case[ \t]*\\(default\\|(\\)\\)\\>")
557 (defconst f90-end-if-re
558 "end[ \t]*\\(if\\|select\\|where\\|forall\\)\\>")
559 (defconst f90-end-type-re
560 "end[ \t]*\\(type\\|interface\\|block[ \t]*data\\)")
561 (defconst f90-type-def-re
562 "\\<\\(type\\)[ \t]*\\(,.*::[ \t]*\\|[ \t]+\\)\\(\\sw+\\)")
563 (defconst f90-no-break-re "\\(\\*\\*\\|//\\|=>\\)")
564 ;; A temporary position to make region operators faster
565 (defvar f90-cache-position nil)
566 (make-variable-buffer-local 'f90-cache-position)
569 (defvar f90-imenu-generic-expression
573 "program[ \t]+\\(\\sw+\\)\\|"
574 "module[ \t]+\\(\\sw+\\)[ \t]*\\(!\\|$\\)\\|"
575 "\\(recursive[ \t]*\\)?subroutine[ \t]+\\(\\sw+\\)\\|"
576 ; avoid end function, but allow for most other things
577 "\\([^!]*\\([^e!].[^ \t!]\\|.[^n!][^ \t!]\\|..[^d \t!]\\)"
578 "\\|[^!]?[^!]?\\)[ \t]*function[ \t]+\\(\\sw+\\)"
581 "imenu generic expression for F90 mode.")
583 ;; When compiling under GNU Emacs, load imenu during compilation. If
584 ;; you have 19.22 or earlier, comment this out, or get imenu.
585 (and (fboundp 'eval-when-compile)
587 (if (not (string-match "XEmacs" emacs-version))
593 ;; abbrevs have generally two letters, except standard types `c, `i, `r, `t
594 (defvar f90-mode-abbrev-table nil)
595 (if f90-mode-abbrev-table
597 (let ((ac abbrevs-changed))
598 (define-abbrev-table 'f90-mode-abbrev-table ())
599 (define-abbrev f90-mode-abbrev-table "`al" "allocate" nil)
600 (define-abbrev f90-mode-abbrev-table "`ab" "allocatable" nil)
601 (define-abbrev f90-mode-abbrev-table "`as" "assignment" nil)
602 (define-abbrev f90-mode-abbrev-table "`ba" "backspace" nil)
603 (define-abbrev f90-mode-abbrev-table "`bd" "block data" nil)
604 (define-abbrev f90-mode-abbrev-table "`c" "character" nil)
605 (define-abbrev f90-mode-abbrev-table "`cl" "close" nil)
606 (define-abbrev f90-mode-abbrev-table "`cm" "common" nil)
607 (define-abbrev f90-mode-abbrev-table "`cx" "complex" nil)
608 (define-abbrev f90-mode-abbrev-table "`cn" "contains" nil)
609 (define-abbrev f90-mode-abbrev-table "`cy" "cycle" nil)
610 (define-abbrev f90-mode-abbrev-table "`de" "deallocate" nil)
611 (define-abbrev f90-mode-abbrev-table "`df" "define" nil)
612 (define-abbrev f90-mode-abbrev-table "`di" "dimension" nil)
613 (define-abbrev f90-mode-abbrev-table "`dw" "do while" nil)
614 (define-abbrev f90-mode-abbrev-table "`el" "else" nil)
615 (define-abbrev f90-mode-abbrev-table "`eli" "else if" nil)
616 (define-abbrev f90-mode-abbrev-table "`elw" "elsewhere" nil)
617 (define-abbrev f90-mode-abbrev-table "`eq" "equivalence" nil)
618 (define-abbrev f90-mode-abbrev-table "`ex" "external" nil)
619 (define-abbrev f90-mode-abbrev-table "`ey" "entry" nil)
620 (define-abbrev f90-mode-abbrev-table "`fl" "forall" nil)
621 (define-abbrev f90-mode-abbrev-table "`fo" "format" nil)
622 (define-abbrev f90-mode-abbrev-table "`fu" "function" nil)
623 (define-abbrev f90-mode-abbrev-table "`fa" ".false." nil)
624 (define-abbrev f90-mode-abbrev-table "`im" "implicit none" nil)
625 (define-abbrev f90-mode-abbrev-table "`in " "include" nil)
626 (define-abbrev f90-mode-abbrev-table "`i" "integer" nil)
627 (define-abbrev f90-mode-abbrev-table "`it" "intent" nil)
628 (define-abbrev f90-mode-abbrev-table "`if" "interface" nil)
629 (define-abbrev f90-mode-abbrev-table "`lo" "logical" nil)
630 (define-abbrev f90-mode-abbrev-table "`mo" "module" nil)
631 (define-abbrev f90-mode-abbrev-table "`na" "namelist" nil)
632 (define-abbrev f90-mode-abbrev-table "`nu" "nullify" nil)
633 (define-abbrev f90-mode-abbrev-table "`op" "optional" nil)
634 (define-abbrev f90-mode-abbrev-table "`pa" "parameter" nil)
635 (define-abbrev f90-mode-abbrev-table "`po" "pointer" nil)
636 (define-abbrev f90-mode-abbrev-table "`pr" "print" nil)
637 (define-abbrev f90-mode-abbrev-table "`pi" "private" nil)
638 (define-abbrev f90-mode-abbrev-table "`pm" "program" nil)
639 (define-abbrev f90-mode-abbrev-table "`pu" "public" nil)
640 (define-abbrev f90-mode-abbrev-table "`r" "real" nil)
641 (define-abbrev f90-mode-abbrev-table "`rc" "recursive" nil)
642 (define-abbrev f90-mode-abbrev-table "`rt" "return" nil)
643 (define-abbrev f90-mode-abbrev-table "`rw" "rewind" nil)
644 (define-abbrev f90-mode-abbrev-table "`se" "select" nil)
645 (define-abbrev f90-mode-abbrev-table "`sq" "sequence" nil)
646 (define-abbrev f90-mode-abbrev-table "`su" "subroutine" nil)
647 (define-abbrev f90-mode-abbrev-table "`ta" "target" nil)
648 (define-abbrev f90-mode-abbrev-table "`tr" ".true." nil)
649 (define-abbrev f90-mode-abbrev-table "`t" "type" nil)
650 (define-abbrev f90-mode-abbrev-table "`wh" "where" nil)
651 (define-abbrev f90-mode-abbrev-table "`wr" "write" nil)
652 (setq abbrevs-changed ac)))
656 "Major mode for editing Fortran 90 code in free format.
658 \\[f90-indent-new-line] corrects current indentation and creates new\
660 \\[f90-indent-line] indents the current line correctly.
661 \\[f90-indent-subprogram] indents the current subprogram.
663 Type `? or `\\[help-command] to display a list of built-in\
664 abbrevs for F90 keywords.
669 Variables controlling indentation style and extra features:
672 Extra indentation within do blocks. (default 3)
674 Extra indentation within if/select case/where/forall blocks. (default 3)
676 Extra indentation within type/interface/block-data blocks. (default 3)
678 Extra indentation within program/module/subroutine/function blocks.
680 f90-continuation-indent
681 Extra indentation applied to continuation lines. (default 5)
683 String inserted by \\[f90-comment-region] at start of each line in
684 region. (default \"!!!$\")
685 f90-indented-comment-re
686 Regexp determining the type of comment to be intended like code.
688 f90-directive-comment-re
689 Regexp of comment-like directive like \"!HPF\\\\$\", not to be indented.
690 (default \"!hpf\\\\$\")
692 Regexp holding list of delimiters at which lines may be broken.
693 (default \"[-+*/><=,% \\t]\")
694 f90-break-before-delimiters
695 Non-nil causes `f90-do-auto-fill' to break lines before delimiters.
697 f90-beginning-ampersand
698 Automatic insertion of \& at beginning of continuation lines. (default t)
700 From an END statement, check and fill the end using matching block start.
701 Allowed values are 'blink, 'no-blink, and nil, which determine
702 whether to blink the matching beginning.) (default 'blink)
703 f90-auto-keyword-case
704 Automatic change of case of keywords. (default nil)
705 The possibilities are 'downcase-word, 'upcase-word, 'capitalize-word.
707 Do not left-justify line numbers. (default nil)
709 Set to nil to inhibit message first time F90 mode is used. (default t)
711 List of keywords used for highlighting/upcase-keywords etc.
713 Turning on F90 mode calls the value of the variable `f90-mode-hook'
714 with no args, if that value is non-nil."
716 (kill-all-local-variables)
717 (setq major-mode 'f90-mode)
718 (setq mode-name "F90")
719 (setq local-abbrev-table f90-mode-abbrev-table)
720 (set-syntax-table f90-mode-syntax-table)
721 (use-local-map f90-mode-map)
722 (make-local-variable 'indent-line-function)
723 (setq indent-line-function 'f90-indent-line)
724 (make-local-variable 'indent-region-function)
725 (setq indent-region-function 'f90-indent-region)
726 (make-local-variable 'require-final-newline)
727 (setq require-final-newline t)
728 (make-local-variable 'comment-start)
729 (setq comment-start "!")
730 (make-local-variable 'comment-start-skip)
731 (setq comment-start-skip "!+ *")
732 (make-local-variable 'comment-indent-function)
733 (setq comment-indent-function 'f90-comment-indent)
734 (make-local-variable 'abbrev-all-caps)
735 (setq abbrev-all-caps t)
736 (setq indent-tabs-mode nil)
737 ;; Setting up things for font-lock
738 (if (string-match "Xemacs" emacs-version)
740 (put 'f90-mode 'font-lock-keywords-case-fold-search t)
741 (if (and current-menubar
742 (not (assoc "F90" current-menubar)))
744 (set-buffer-menubar (copy-sequence current-menubar))
745 (add-submenu nil f90-xemacs-menu)))
746 (make-local-variable 'font-lock-keywords)
747 (setq font-lock-keywords f90-font-lock-keywords))
749 (make-local-variable 'font-lock-defaults)
750 (setq font-lock-defaults
751 '((f90-font-lock-keywords f90-font-lock-keywords-1
752 f90-font-lock-keywords-2
753 f90-font-lock-keywords-3
754 f90-font-lock-keywords-4)
756 ;; Tell imenu how to handle f90.
757 (make-local-variable 'imenu-generic-expression)
758 (setq imenu-generic-expression f90-imenu-generic-expression))
759 (run-hooks 'f90-mode-hook)
760 (if f90-startup-message
761 (message "Emacs F90 mode; please report bugs to %s" bug-f90-mode))
762 (setq f90-startup-message nil))
765 (defsubst f90-get-beg-of-line ()
766 (save-excursion (beginning-of-line) (point)))
768 (defsubst f90-get-end-of-line ()
769 (save-excursion (end-of-line) (point)))
771 (defsubst f90-in-string ()
773 (if (and f90-cache-position (> (point) f90-cache-position))
776 (nth 3 (parse-partial-sexp beg-pnt (point)))))
778 (defsubst f90-in-comment ()
780 (if (and f90-cache-position (> (point) f90-cache-position))
783 (nth 4 (parse-partial-sexp beg-pnt (point)))))
785 (defsubst f90-line-continued ()
787 (let ((bol (f90-get-beg-of-line)))
789 (while (f90-in-comment)
790 (search-backward "!" bol)
791 (skip-chars-backward "!"))
792 (skip-chars-backward " \t")
793 (= (preceding-char) ?&))))
795 (defsubst f90-current-indentation ()
796 "Return indentation of current line.
797 Line-numbers are considered whitespace characters."
799 (beginning-of-line) (skip-chars-forward " \t0-9")
802 (defsubst f90-indent-to (col &optional no-line-number)
803 "Indent current line to column COL.
804 If no-line-number nil, jump over a possible line-number."
806 (if (not no-line-number)
807 (skip-chars-forward " \t0-9"))
808 (delete-horizontal-space)
809 (if (zerop (current-column))
813 (defsubst f90-match-piece (arg)
814 (if (match-beginning arg)
815 (buffer-substring (match-beginning arg) (match-end arg))))
817 (defsubst f90-get-present-comment-type ()
819 (let ((type nil) (eol (f90-get-end-of-line)))
823 (re-search-forward "[!]+" eol)
824 (while (f90-in-string)
825 (re-search-forward "[!]+" eol))
826 (setq type (buffer-substring (match-beginning 0) (match-end 0)))))
829 (defsubst f90-equal-symbols (a b)
830 "Compare strings neglecting case and allowing for nil value."
831 (let ((a-local (if a (downcase a) nil))
832 (b-local (if b (downcase b) nil)))
833 (equal a-local b-local)))
835 ;; XEmacs 19.11 & 19.12 gives back a single char when matching an empty regular
836 ;; expression. Therefore, the next 2 functions are longer than necessary.
838 (defsubst f90-looking-at-do ()
839 "Return (\"do\" name) if a do statement starts after point.
840 Name is nil if the statement has no label."
841 (if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(do\\)\\>")
843 (struct (f90-match-piece 3)))
844 (if (looking-at "\\(\\sw+\\)[ \t]*\:")
845 (setq label (f90-match-piece 1)))
846 (list struct label))))
848 (defsubst f90-looking-at-select-case ()
849 "Return (\"select\" name) if a select-case statement starts after point.
850 Name is nil if the statement has no label."
851 (if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(select\\)[ \t]*case[ \t]*(")
853 (struct (f90-match-piece 3)))
854 (if (looking-at "\\(\\sw+\\)[ \t]*\:")
855 (setq label (f90-match-piece 1)))
856 (list struct label))))
858 (defsubst f90-looking-at-if-then ()
859 "Return (\"if\" name) if an if () then statement starts after point.
860 Name is nil if the statement has no label."
862 (let (struct (label nil))
863 (if (looking-at "\\(\\(\\sw+\\)[ \t]*\:\\)?[ \t]*\\(if\\)\\>")
865 (setq struct (f90-match-piece 3))
866 (if (looking-at "\\(\\sw+\\)[ \t]*\:")
867 (setq label (f90-match-piece 1)))
868 (goto-char (scan-lists (point) 1 0))
869 (skip-chars-forward " \t")
870 (if (or (looking-at "then\\>")
871 (if (f90-line-continued)
874 (skip-chars-forward " \t0-9&")
875 (looking-at "then\\>"))))
876 (list struct label)))))))
878 (defsubst f90-looking-at-where-or-forall ()
879 "Return (kind nil) if where/forall...end starts after point."
882 (if (looking-at "\\(where\\|forall\\)[ \t]*(")
884 (setq command (list (f90-match-piece 1) nil))
885 (goto-char (scan-lists (point) 1 0))
886 (skip-chars-forward " \t")
887 (if (looking-at "\\(!\\|$\\)")
890 (defsubst f90-looking-at-type-like ()
891 "Return (kind name) at the start of a type/interface/block-data block.
892 Name is non-nil only for type."
894 ((looking-at f90-type-def-re)
895 (list (f90-match-piece 1) (f90-match-piece 3)))
896 ((looking-at "\\(interface\\|block[\t]*data\\)\\>")
897 (list (f90-match-piece 1) nil))))
899 (defsubst f90-looking-at-program-block-start ()
900 "Return (kind name) if a program block with name name starts after point."
902 ((looking-at "\\(program\\)[ \t]+\\(\\sw+\\)\\>")
903 (list (f90-match-piece 1) (f90-match-piece 2)))
904 ((and (not (looking-at "module[ \t]*procedure\\>"))
905 (looking-at "\\(module\\)[ \t]+\\(\\sw+\\)\\>"))
906 (list (f90-match-piece 1) (f90-match-piece 2)))
907 ((looking-at "\\(recursive[ \t]*\\)?\\(subroutine\\)[ \t]+\\(\\sw+\\)")
908 (list (f90-match-piece 2) (f90-match-piece 3)))
909 ((and (not (looking-at "end[ \t]*function"))
910 (looking-at ".*\\(function\\)[ \t]+\\(\\sw+\\)"))
911 (list (f90-match-piece 1) (f90-match-piece 2)))))
913 (defsubst f90-looking-at-program-block-end ()
914 "Return list of type and name of end of block."
915 (if (looking-at (concat "end[ \t]*" f90-blocks-re
916 "?\\([ \t]+\\(\\sw+\\)\\)?\\>"))
917 (list (f90-match-piece 1) (f90-match-piece 3))))
919 (defsubst f90-comment-indent ()
920 (cond ((looking-at "!!!") 0)
921 ((and f90-directive-comment-re
922 (looking-at f90-directive-comment-re)) 0)
923 ((looking-at (regexp-quote f90-comment-region)) 0)
924 ((looking-at f90-indented-comment-re)
925 (f90-calculate-indent))
926 (t (skip-chars-backward " \t")
927 (max (if (bolp) 0 (1+ (current-column))) comment-column))))
929 (defsubst f90-present-statement-cont ()
930 "Return continuation properties of present statement."
933 (setq pcont (if (f90-previous-statement) (f90-line-continued) nil)))
934 (setq cont (f90-line-continued))
935 (cond ((and (not pcont) (not cont)) 'single)
936 ((and (not pcont) cont) 'begin)
937 ((and pcont (not cont)) 'end)
938 ((and pcont cont) 'middle)
941 (defsubst f90-indent-line-no ()
942 (if f90-leave-line-no
944 (if (and (not (zerop (skip-chars-forward " \t")))
945 (looking-at "[0-9]"))
946 (delete-horizontal-space)))
947 (skip-chars-forward " \t0-9"))
949 (defsubst f90-no-block-limit ()
950 (let ((eol (f90-get-end-of-line)))
952 (not (or (looking-at "end")
953 (looking-at "\\(do\\|if\\|else\\|select[ \t]*case\\|\
954 case\\|where\\|forall\\)\\>")
955 (looking-at "\\(program\\|module\\|interface\\|\
956 block[ \t]*data\\)\\>")
957 (looking-at "\\(contains\\|\\sw+[ \t]*:\\)")
958 (looking-at f90-type-def-re)
959 (re-search-forward "\\(function\\|subroutine\\)" eol t))))))
961 (defsubst f90-update-line ()
963 (if f90-auto-keyword-case
964 (progn (setq bol (f90-get-beg-of-line)
965 eol (f90-get-end-of-line))
966 (if f90-auto-keyword-case
967 (f90-change-keywords f90-auto-keyword-case bol eol))))))
969 (defun f90-get-correct-indent ()
970 "Get correct indent for a line starting with line number.
971 Does not check type and subprogram indentation."
972 (let ((epnt (f90-get-end-of-line)) icol cont)
974 (while (and (f90-previous-statement)
976 (setq cont (f90-present-statement-cont))
977 (or (eq cont 'end) (eq cont 'middle)))
978 (looking-at "[ \t]*[0-9]"))))
979 (setq icol (current-indentation))
981 (if (re-search-forward "\\(if\\|do\\|select\\|where\\|forall\\)"
982 (f90-get-end-of-line) t)
984 (beginning-of-line) (skip-chars-forward " \t")
985 (cond ((f90-looking-at-do)
986 (setq icol (+ icol f90-do-indent)))
987 ((or (f90-looking-at-if-then)
988 (f90-looking-at-where-or-forall)
989 (f90-looking-at-select-case))
990 (setq icol (+ icol f90-if-indent))))
992 (while (re-search-forward
993 "\\(if\\|do\\|select\\|where\\|forall\\)" epnt t)
994 (beginning-of-line) (skip-chars-forward " \t0-9")
995 (cond ((f90-looking-at-do)
996 (setq icol (+ icol f90-do-indent)))
997 ((or (f90-looking-at-if-then)
998 (f90-looking-at-where-or-forall)
999 (f90-looking-at-select-case))
1000 (setq icol (+ icol f90-if-indent)))
1001 ((looking-at f90-end-if-re)
1002 (setq icol (- icol f90-if-indent)))
1003 ((looking-at "end[ \t]*do\\>")
1004 (setq icol (- icol f90-do-indent))))
1009 (defun f90-calculate-indent ()
1010 "Calculate the indent column based on previous statements."
1012 (let (icol cont (case-fold-search t) (pnt (point)))
1014 (if (not (f90-previous-statement))
1016 (setq cont (f90-present-statement-cont))
1018 (while (not (eq 'begin (f90-present-statement-cont)))
1019 (f90-previous-statement)))
1020 (cond ((eq cont 'begin)
1021 (setq icol (+ (f90-current-indentation)
1022 f90-continuation-indent)))
1023 ((eq cont 'middle) (setq icol(current-indentation)))
1024 (t (setq icol (f90-current-indentation))
1025 (skip-chars-forward " \t")
1026 (if (looking-at "[0-9]")
1027 (setq icol (f90-get-correct-indent))
1028 (cond ((or (f90-looking-at-if-then)
1029 (f90-looking-at-where-or-forall)
1030 (f90-looking-at-select-case)
1031 (looking-at f90-else-like-re))
1032 (setq icol (+ icol f90-if-indent)))
1033 ((f90-looking-at-do)
1034 (setq icol (+ icol f90-do-indent)))
1035 ((f90-looking-at-type-like)
1036 (setq icol (+ icol f90-type-indent)))
1037 ((or (f90-looking-at-program-block-start)
1038 (looking-at "contains[ \t]*\\($\\|!\\)"))
1039 (setq icol (+ icol f90-program-indent)))))
1042 (cond ((looking-at "[ \t]*$"))
1043 ((looking-at "[ \t]*#") ; Check for cpp directive.
1046 (skip-chars-forward " \t0-9")
1047 (cond ((or (looking-at f90-else-like-re)
1048 (looking-at f90-end-if-re))
1049 (setq icol (- icol f90-if-indent)))
1050 ((looking-at "end[ \t]*do\\>")
1051 (setq icol (- icol f90-do-indent)))
1052 ((looking-at f90-end-type-re)
1053 (setq icol (- icol f90-type-indent)))
1054 ((or (looking-at "contains[ \t]*\\(!\\|$\\)")
1055 (f90-looking-at-program-block-end))
1056 (setq icol (- icol f90-program-indent))))))
1060 ;; Statement = statement line, a line which is neither blank, nor a comment.
1061 (defun f90-previous-statement ()
1062 "Move point to beginning of the previous F90 statement.
1063 Return nil if no previous statement is found."
1065 (let (not-first-statement)
1067 (while (and (setq not-first-statement (zerop (forward-line -1)))
1068 (looking-at "[ \t0-9]*\\(!\\|$\\|#\\)")))
1069 not-first-statement))
1071 (defun f90-next-statement ()
1072 "Move point to beginning of the next F90 statement.
1073 Return nil if no later statement is found."
1075 (let (not-last-statement)
1077 (while (and (setq not-last-statement
1078 (and (zerop (forward-line 1))
1080 (looking-at "[ \t0-9]*\\(!\\|$\\)")))
1081 not-last-statement))
1083 (defun f90-beginning-of-subprogram ()
1084 "Move point to the beginning of subprogram.
1085 Return (type name) or nil if not found."
1087 (let ((count 1) (case-fold-search t) matching-beg)
1088 (beginning-of-line) (skip-chars-forward " \t0-9")
1089 (if (setq matching-beg (f90-looking-at-program-block-start))
1090 (setq count (- count 1)))
1091 (while (and (not (zerop count))
1092 (re-search-backward f90-program-block-re nil 'move))
1093 (beginning-of-line) (skip-chars-forward " \t0-9")
1095 ((setq matching-beg (f90-looking-at-program-block-start))
1096 (setq count (- count 1)))
1097 ((f90-looking-at-program-block-end)
1098 (setq count (+ count 1)))))
1102 (message "No beginning-found.")
1105 (defun f90-end-of-subprogram ()
1106 "Move point to the end of subprogram.
1107 Return (type name) or nil if not found."
1109 (let ((count 1) (case-fold-search t) matching-end)
1110 (beginning-of-line) (skip-chars-forward " \t0-9")
1111 (if (setq matching-end (f90-looking-at-program-block-end))
1112 (setq count (1- count)))
1114 (while (and (not (zerop count))
1115 (re-search-forward f90-program-block-re nil 'move))
1116 (beginning-of-line) (skip-chars-forward " \t0-9")
1117 (cond ((f90-looking-at-program-block-start)
1118 (setq count (+ count 1)))
1119 ((setq matching-end (f90-looking-at-program-block-end))
1120 (setq count (1- count ))))
1125 (message "No end found.")
1128 (defun f90-mark-subprogram ()
1129 "Put mark at end of F90 subprogram, point at beginning.
1130 Marks are pushed and highlight (grey shadow) is turned on."
1132 (let ((pos (point)) program)
1133 (f90-end-of-subprogram)
1134 (push-mark (point) t)
1136 (setq program (f90-beginning-of-subprogram))
1137 ;; The keywords in the preceding lists assume case-insensitivity.
1138 (if (string-match "XEmacs" emacs-version)
1139 (zmacs-activate-region)
1140 (setq mark-active t)
1141 (setq deactivate-mark nil))
1144 (defun f90-comment-region (beg-region end-region)
1145 "Comment/uncomment every line in the region.
1146 Insert f90-comment-region at the beginning of every line in the region
1147 or, if already present, remove it."
1149 (let ((end (make-marker)))
1150 (set-marker end end-region)
1151 (goto-char beg-region)
1153 (if (looking-at (regexp-quote f90-comment-region))
1154 (delete-region (point) (match-end 0))
1155 (insert f90-comment-region))
1156 (while (and (zerop (forward-line 1))
1157 (< (point) (marker-position end)))
1158 (if (looking-at (regexp-quote f90-comment-region))
1159 (delete-region (point) (match-end 0))
1160 (insert f90-comment-region)))
1161 (set-marker end nil)))
1163 (defun f90-indent-line (&optional no-update)
1164 "Indent current line as F90 code."
1166 (let (indent (no-line-number nil) (pos (make-marker)) (case-fold-search t))
1167 (set-marker pos (point))
1168 (beginning-of-line) ; Digits after & \n are not line-no
1169 (if (save-excursion (and (f90-previous-statement) (f90-line-continued)))
1170 (progn (setq no-line-number t) (skip-chars-forward " \t"))
1171 (f90-indent-line-no))
1172 (if (looking-at "!")
1173 (setq indent (f90-comment-indent))
1174 (if (and (looking-at "end") f90-smart-end)
1176 (setq indent (f90-calculate-indent)))
1177 (if (zerop (- indent (current-column)))
1179 (f90-indent-to indent no-line-number))
1180 ;; If initial point was within line's indentation,
1181 ;; position after the indentation. Else stay at same point in text.
1182 (if (< (point) (marker-position pos))
1183 (goto-char (marker-position pos)))
1184 (if (not no-update) (f90-update-line))
1185 (if (and auto-fill-function
1186 (> (save-excursion (end-of-line) (current-column)) fill-column))
1187 (save-excursion (f90-do-auto-fill)))
1188 (set-marker pos nil)))
1190 (defun f90-indent-new-line ()
1191 "Reindent the current F90 line, insert a newline and indent the newline.
1192 An abbrev before point is expanded if `abbrev-mode' is non-nil.
1193 If run in the middle of a line, the line is not broken."
1195 (let (string cont (case-fold-search t))
1196 (if abbrev-mode (expand-abbrev))
1197 (beginning-of-line) ; Reindent where likely to be needed.
1198 (f90-indent-line-no)
1199 (if (or (looking-at "\\(end\\|else\\|!\\)"))
1200 (f90-indent-line 'no-update))
1202 (delete-horizontal-space) ;Destroy trailing whitespace
1203 (setq string (f90-in-string))
1204 (setq cont (f90-line-continued))
1205 (if (and string (not cont)) (insert "&"))
1208 (if (or string (and cont f90-beginning-ampersand)) (insert "&"))
1209 (f90-indent-line 'no-update)))
1212 (defun f90-indent-region (beg-region end-region)
1213 "Indent every line in region by forward parsing."
1215 (let ((end-region-mark (make-marker)) (save-point (point-marker))
1216 (block-list nil) ind-lev ind-curr ind-b cont
1217 struct beg-struct end-struct)
1218 (set-marker end-region-mark end-region)
1219 (goto-char beg-region)
1220 ;; first find a line which is not a continuation line or comment
1222 (while (and (looking-at "[ \t]*[0-9]*\\(!\\|#\\|[ \t]*$\\)")
1223 (progn (f90-indent-line 'no-update)
1224 (zerop (forward-line 1)))
1225 (< (point) end-region-mark)))
1226 (setq cont (f90-present-statement-cont))
1227 (while (and (or (eq cont 'middle) (eq cont 'end))
1228 (f90-previous-statement))
1229 (setq cont (f90-present-statement-cont)))
1230 ;; process present line for beginning of block
1231 (setq f90-cache-position (point))
1232 (f90-indent-line 'no-update)
1233 (setq ind-lev (f90-current-indentation))
1234 (setq ind-curr ind-lev)
1235 (beginning-of-line) (skip-chars-forward " \t0-9")
1237 (setq ind-b (cond ((setq struct (f90-looking-at-do)) f90-do-indent)
1238 ((or (setq struct (f90-looking-at-if-then))
1239 (setq struct (f90-looking-at-select-case))
1240 (setq struct (f90-looking-at-where-or-forall))
1241 (looking-at f90-else-like-re))
1243 ((setq struct (f90-looking-at-type-like))
1245 ((or(setq struct (f90-looking-at-program-block-start))
1246 (looking-at "contains[ \t]*\\($\\|!\\)"))
1247 f90-program-indent)))
1248 (if ind-b (setq ind-lev (+ ind-lev ind-b)))
1249 (if struct (setq block-list (cons struct block-list)))
1250 (while (and (f90-line-continued) (zerop (forward-line 1))
1251 (< (point) end-region-mark))
1252 (if (not (zerop (- (current-indentation)
1253 (+ ind-curr f90-continuation-indent))))
1254 (f90-indent-to (+ ind-curr f90-continuation-indent) 'no-line-no)))
1255 ;; process all following lines
1256 (while (and (zerop (forward-line 1)) (< (point) end-region-mark))
1258 (f90-indent-line-no)
1259 (setq f90-cache-position (point))
1260 (cond ((looking-at "[ \t]*$") (setq ind-curr 0))
1261 ((looking-at "[ \t]*#") (setq ind-curr 0))
1262 ((looking-at "!") (setq ind-curr (f90-comment-indent)))
1263 ((f90-no-block-limit) (setq ind-curr ind-lev))
1264 ((looking-at f90-else-like-re) (setq ind-curr
1265 (- ind-lev f90-if-indent)))
1266 ((looking-at "contains[ \t]*\\($\\|!\\)")
1267 (setq ind-curr (- ind-lev f90-program-indent)))
1269 (cond ((setq struct (f90-looking-at-do)) f90-do-indent)
1270 ((or (setq struct (f90-looking-at-if-then))
1271 (setq struct (f90-looking-at-select-case))
1272 (setq struct (f90-looking-at-where-or-forall)))
1274 ((setq struct (f90-looking-at-type-like))
1276 ((setq struct (f90-looking-at-program-block-start))
1277 f90-program-indent)))
1278 (setq ind-curr ind-lev)
1279 (if ind-b (setq ind-lev (+ ind-lev ind-b)))
1280 (setq block-list (cons struct block-list)))
1281 ((setq end-struct (f90-looking-at-program-block-end))
1282 (setq beg-struct (car block-list)
1283 block-list (cdr block-list))
1286 (f90-block-match (car beg-struct)(car (cdr beg-struct))
1287 (car end-struct)(car (cdr end-struct)))))
1289 (cond ((looking-at f90-end-if-re) f90-if-indent)
1290 ((looking-at "end[ \t]*do\\>") f90-do-indent)
1291 ((looking-at f90-end-type-re) f90-type-indent)
1292 ((f90-looking-at-program-block-end)
1293 f90-program-indent)))
1294 (if ind-b (setq ind-lev (- ind-lev ind-b)))
1295 (setq ind-curr ind-lev))
1296 (t (setq ind-curr ind-lev)))
1297 ;; do the indentation if necessary
1298 (if (not (zerop (- ind-curr (current-column))))
1299 (f90-indent-to ind-curr))
1300 (while (and (f90-line-continued) (zerop (forward-line 1))
1301 (< (point) end-region-mark))
1302 (if (not (zerop (- (current-indentation)
1303 (+ ind-curr f90-continuation-indent))))
1304 (f90-indent-to (+ ind-curr f90-continuation-indent) 'no-line-no))))
1305 ;; restore point etc
1306 (setq f90-cache-position nil)
1307 (goto-char save-point)
1308 (set-marker end-region-mark nil)
1309 (set-marker save-point nil)
1310 (if (string-match "Xemacs" emacs-version)
1311 (zmacs-deactivate-region)
1312 (deactivate-mark))))
1314 (defun f90-indent-subprogram ()
1315 "Properly indent the subprogram which contains point."
1319 (setq program (f90-mark-subprogram))
1322 (message (concat "Indenting " (car program) " "
1323 (car (cdr program))"."))
1324 (f90-indent-region (point) (mark))
1325 (message (concat "Indenting " (car program) " "
1326 (car (cdr program)) "...done.")))
1327 (message "Indenting the whole file.")
1328 (f90-indent-region (point) (mark))
1329 (message (concat "Indenting the whole file...done."))))))
1331 ;; autofill and break-line
1332 (defun f90-break-line (&optional no-update)
1333 "Break line at point, insert continuation marker(s) and indent."
1336 (cond ((f90-in-string)
1337 (insert "&") (newline) (insert "&"))
1339 (delete-horizontal-space)
1340 (setq ctype (f90-get-present-comment-type))
1341 (newline) (insert (concat ctype " ")))
1342 (t (delete-horizontal-space)
1344 (if (not no-update) (f90-update-line))
1346 (if f90-beginning-ampersand (insert "& ")))))
1347 (if (not no-update) (f90-indent-line)))
1349 (defun f90-find-breakpoint ()
1350 "From fill-column, search backward for break-delimiter."
1351 (let ((bol (f90-get-beg-of-line)))
1352 (re-search-backward f90-break-delimiters bol)
1353 (if f90-break-before-delimiters
1354 (progn (backward-char)
1355 (if (not (looking-at f90-no-break-re))
1357 (if (looking-at f90-no-break-re)
1361 (defun f90-auto-fill-mode (arg)
1362 "Toggle f90-auto-fill mode.
1363 With ARG, turn `f90-auto-fill' mode on iff ARG is positive.
1364 In `f90-auto-fill' mode, inserting a space at a column beyond `fill-column'
1365 automatically breaks the line at a previous space."
1367 (prog1 (setq auto-fill-function
1369 (not auto-fill-function)
1370 (> (prefix-numeric-value arg) 0))
1372 (force-mode-line-update)))
1374 (defun f90-do-auto-fill ()
1375 "Break line if non-white characters beyond fill-column."
1377 ;; Break the line before or after the last delimiter (non-word char).
1378 ;; Will not break **, //, or => (specified by f90-no-break-re).
1379 ;; Start by checking that line is longer than fill-column.
1380 (if (> (save-excursion (end-of-line) (current-column)) fill-column)
1382 (move-to-column fill-column)
1383 (if (and (looking-at "[ \t]*$") (not (f90-in-string)))
1384 (delete-horizontal-space)
1385 (f90-find-breakpoint)
1389 (defun f90-join-lines ()
1390 "Join present line with next line, if this line ends with \&."
1392 (let (pos (oldpos (point)))
1394 (skip-chars-backward " \t")
1395 (cond ((= (preceding-char) ?&)
1399 (skip-chars-forward " \t")
1400 (if (looking-at "\&") (delete-char 1))
1401 (delete-region pos (point))
1402 (if (not (f90-in-string))
1403 (progn (delete-horizontal-space) (insert " ")))
1404 (if (and auto-fill-function
1405 (> (save-excursion (end-of-line)
1412 (defun f90-fill-region (beg-region end-region)
1413 "Fill every line in region by forward parsing. Join lines if possible."
1415 (let ((end-region-mark (make-marker))
1416 (f90-smart-end nil) (f90-auto-keyword-case nil) indent (go-on t)
1417 (af-function auto-fill-function) (auto-fill-function nil))
1418 (set-marker end-region-mark end-region)
1419 (goto-char beg-region)
1421 ;; join as much as possible
1422 (while (f90-join-lines));
1423 (setq indent (+ (f90-current-indentation) f90-continuation-indent))
1424 ;; chop the line if necessary
1425 (while (> (save-excursion (end-of-line) (current-column))
1427 (move-to-column fill-column)
1428 (if (and (looking-at "[ \t]*$") (not (f90-in-string)))
1429 (delete-horizontal-space)
1430 (f90-find-breakpoint)
1431 (f90-break-line 'no-update)
1432 (f90-indent-to indent 'no-line-no)))
1433 (setq go-on (and (< (point) (marker-position end-region-mark))
1434 (zerop (forward-line 1))))
1435 (setq f90-cache-position (point)))
1436 (setq auto-fill-function af-function)
1437 (setq f90-cache-position nil)
1438 (if (string-match "XEmacs" emacs-version)
1439 (zmacs-deactivate-region)
1440 (deactivate-mark))))
1442 (defun f90-block-match (beg-block beg-name end-block end-name)
1443 "Match end-struct with beg-struct and complete end-block if possible.
1444 Leave point at the end of line."
1445 (search-forward "end" (f90-get-end-of-line))
1447 (if (not (f90-equal-symbols beg-block end-block))
1450 (message "END %s does not match %s." end-block beg-block)
1452 (throw 'no-match nil))
1453 (message "Inserting %s." beg-block)
1454 (insert (concat " " beg-block)))
1455 (search-forward end-block))
1456 (if (not (f90-equal-symbols beg-name end-name))
1457 (cond ((and beg-name (not end-name))
1458 (message "Inserting %s." beg-name)
1459 (insert (concat " " beg-name)))
1460 ((and beg-name end-name)
1461 (message "Replacing %s with %s." end-name beg-name)
1462 (search-forward end-name)
1463 (replace-match beg-name))
1464 ((and (not beg-name) end-name)
1465 (message "Deleting %s." end-name)
1466 (search-forward end-name)
1467 (replace-match "")))
1468 (if end-name (search-forward end-name)))
1469 (if (not (looking-at "[ \t]*!")) (delete-horizontal-space))))
1471 (defun f90-match-end ()
1472 "From an end foo statement, find the corresponding foo including name."
1474 (let ((count 1) (top-of-window (window-start)) (matching-beg nil)
1475 (end-point (point)) (case-fold-search t)
1476 beg-name end-name beg-block end-block end-struct)
1477 (if (save-excursion (beginning-of-line) (skip-chars-forward " \t0-9")
1478 (setq end-struct (f90-looking-at-program-block-end)))
1480 (setq end-block (car end-struct))
1481 (setq end-name (car (cdr end-struct)))
1484 (while (and (not (zerop count))
1486 (concat "\\(" f90-blocks-re "\\)") nil t))
1487 (beginning-of-line) (skip-chars-forward " \t0-9")
1488 (cond ((setq matching-beg
1490 ((f90-looking-at-do))
1491 ((f90-looking-at-if-then))
1492 ((f90-looking-at-where-or-forall))
1493 ((f90-looking-at-select-case))
1494 ((f90-looking-at-type-like))
1495 ((f90-looking-at-program-block-start))))
1496 (setq count (- count 1)))
1497 ((looking-at (concat "end[ \t]*" f90-blocks-re "\\b"))
1498 (setq count (+ count 1)))))
1499 (if (not (zerop count))
1500 (message "No matching beginning.")
1502 (if (eq f90-smart-end 'blink)
1503 (if (< (point) top-of-window)
1505 "Matches " (what-line) ": "
1507 (progn (beginning-of-line) (point))
1508 (progn (end-of-line) (point)))))
1510 (setq beg-block (car matching-beg))
1511 (setq beg-name (car (cdr matching-beg)))
1512 (goto-char end-point)
1514 (f90-block-match beg-block beg-name end-block end-name)))))))
1516 (defun f90-insert-end ()
1517 "Inserts an complete end statement matching beginning of present block."
1519 (let ((f90-smart-end (if f90-smart-end f90-smart-end 'blink)))
1521 (f90-indent-new-line)))
1523 ;; abbrevs and keywords
1525 (defun f90-abbrev-start ()
1526 "Typing `\\[help-command] or `? lists all the F90 abbrevs.
1527 Any other key combination is executed normally."
1530 (insert last-command-char)
1531 (setq e (next-command-event)
1532 c (if (string-match "XEmacs" emacs-version)
1533 (event-to-character e)
1535 ;; insert char if not equal to `?'
1536 (if (or (= c ??) (eq c help-char))
1538 (if (string-match "XEmacs" emacs-version)
1539 (setq unread-command-event e)
1540 (setq unread-command-events (list c))))))
1542 (defun f90-abbrev-help ()
1543 "List the currently defined abbrevs in F90 mode."
1545 (message "Listing abbrev table...")
1546 (display-buffer (f90-prepare-abbrev-list-buffer))
1547 (message "Listing abbrev table...done"))
1549 (defun f90-prepare-abbrev-list-buffer ()
1551 (set-buffer (get-buffer-create "*Abbrevs*"))
1553 (insert-abbrev-table-description 'f90-mode-abbrev-table t)
1554 (goto-char (point-min))
1555 (set-buffer-modified-p nil)
1556 (edit-abbrevs-mode))
1557 (get-buffer-create "*Abbrevs*"))
1559 (defun f90-upcase-keywords ()
1560 "Upcase all F90 keywords in the buffer."
1562 (f90-change-keywords 'upcase-word))
1564 (defun f90-capitalize-keywords ()
1565 "Capitalize all F90 keywords in the buffer."
1567 (f90-change-keywords 'capitalize-word))
1569 (defun f90-downcase-keywords ()
1570 "Downcase all F90 keywords in the buffer."
1572 (f90-change-keywords 'downcase-word))
1574 (defun f90-upcase-region-keywords (beg end)
1575 "Upcase all F90 keywords in the region."
1577 (f90-change-keywords 'upcase-word beg end))
1579 (defun f90-capitalize-region-keywords (beg end)
1580 "Capitalize all F90 keywords in the region."
1582 (f90-change-keywords 'capitalize-word beg end))
1584 (defun f90-downcase-region-keywords (beg end)
1585 "Downcase all F90 keywords in the region."
1587 (f90-change-keywords 'downcase-word beg end))
1589 ;; Change the keywords according to argument.
1590 (defun f90-change-keywords (change-word &optional beg end)
1592 (setq beg (if beg beg (point-min)))
1593 (setq end (if end end (point-max)))
1596 f90-keywords-re "\\|" f90-procedures-re "\\|"
1597 f90-hpf-keywords-re "\\|" f90-operators-re "\\)"))
1598 (ref-point (point-min)) state
1599 (modified (buffer-modified-p)) saveword back-point)
1602 (while (re-search-forward keyword-re end t)
1604 (setq state (parse-partial-sexp ref-point (point)))
1605 (or (nth 3 state) (nth 4 state)
1606 (save-excursion ; Check for cpp directive.
1608 (skip-chars-forward " \t0-9")
1611 (setq ref-point (point)
1612 back-point (save-excursion (backward-word 1) (point)))
1613 (setq saveword (buffer-substring back-point ref-point))
1614 (funcall change-word -1)
1615 (or (string= saveword (buffer-substring back-point ref-point))
1616 (setq modified t))))
1617 (or modified (set-buffer-modified-p nil))))))
1621 ;;; f90.el ends here