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43e34a41 RS |
1 | ;;; dcl-mode.el --- major mode for editing DCL command files |
2 | ||
d898671f RS |
3 | ;; Copyright (c) 1997 Free Software Foundation, Inc. |
4 | ||
43e34a41 RS |
5 | ;; Author: Odd Gripenstam <gripenstamol@decus.se> |
6 | ;; Maintainer: Odd Gripenstam <gripenstamol@decus.se> | |
7 | ;; Keywords: DCL editing major-mode languages | |
8 | ||
d898671f RS |
9 | ;; This file is part of GNU Emacs. |
10 | ||
11 | ;; GNU Emacs is free software; you can redistribute it and/or modify | |
12 | ;; it under the terms of the GNU General Public License as published by | |
13 | ;; the Free Software Foundation; either version 2, or (at your option) | |
14 | ;; any later version. | |
15 | ||
16 | ;; GNU Emacs is distributed in the hope that it will be useful, | |
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 | |
22 | ;; along with GNU Emacs; see the file COPYING. If not, write to the | |
23 | ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330, | |
24 | ;; Boston, MA 02111-1307, USA. | |
25 | ||
43e34a41 RS |
26 | ;;; Commentary: |
27 | ||
28 | ;; DCL mode is a package for editing DCL command files. It helps you | |
29 | ;; indent lines, add leading `$' and trailing `-', move around in the | |
30 | ;; code and insert lexical functions. | |
31 | ;; | |
32 | ;; Type `C-h m' when you are editing a .COM file to get more | |
33 | ;; information about this mode. | |
a1506d29 | 34 | ;; |
43e34a41 RS |
35 | ;; To use templates you will need a version of tempo.el that is at |
36 | ;; least later than the buggy 1.1.1, which was included with my versions of | |
a1506d29 | 37 | ;; Emacs. I used version 1.2.4. |
43e34a41 RS |
38 | ;; The latest tempo.el distribution can be fetched from |
39 | ;; ftp.lysator.liu.se in the directory /pub/emacs. | |
40 | ;; I recommend setting (setq tempo-interactive t). This will make | |
41 | ;; tempo prompt you for values to put in the blank spots in the templates. | |
42 | ;; | |
43 | ;; There is limited support for imenu. The limitation is that you need | |
44 | ;; a version of imenu.el that uses imenu-generic-expression. I found | |
45 | ;; the version I use in Emacs 19.30. (It was *so* much easier to hook | |
46 | ;; into that version than the one in 19.27...) | |
47 | ;; | |
48 | ;; Any feedback will be welcomed. If you write functions for | |
49 | ;; dcl-calc-command-indent-function or dcl-calc-cont-indent-function, | |
a1506d29 JB |
50 | ;; please send them to the maintainer. |
51 | ;; | |
43e34a41 RS |
52 | ;; |
53 | ;; Ideas for improvement: | |
54 | ;; * Change meaning of `left margin' when dcl-tab-always-indent is nil. | |
55 | ;; Consider the following line (`_' is the cursor): | |
56 | ;; $ label: _ command | |
57 | ;; Pressing tab with the cursor at the underline now inserts a tab. | |
58 | ;; This should be part of the left margin and pressing tab should indent | |
59 | ;; the line. | |
60 | ;; * Make M-LFD work properly with comments in all cases. Now it only | |
61 | ;; works on comment-only lines. But what is "properly"? New rules for | |
62 | ;; indenting comments? | |
63 | ;; * Even smarter indentation of continuation lines. | |
64 | ;; * A delete-indentation function (M-^) that joins continued lines, | |
65 | ;; including lines with end line comments? | |
66 | ;; * Handle DECK/EOD. | |
67 | ;; * `indent list' commands: C-M-q, C-u TAB. What is a list in DCL? One | |
68 | ;; complete command line? A block? A subroutine? | |
69 | ||
70 | ;;; Code: | |
71 | ||
72 | ;;; *** Customization ***************************************************** | |
73 | ||
174c05ac | 74 | (defgroup dcl nil |
28d16ed3 AS |
75 | "Major mode for editing DCL command files." |
76 | :group 'languages) | |
43e34a41 | 77 | |
28d16ed3 | 78 | (defcustom dcl-basic-offset 4 |
43e34a41 RS |
79 | "*Number of columns to indent a block in DCL. |
80 | A block is the commands between THEN-ELSE-ENDIF and between the commands | |
81 | dcl-block-begin-regexp and dcl-block-end-regexp. | |
82 | ||
83 | The meaning of this variable may be changed if | |
28d16ed3 AS |
84 | dcl-calc-command-indent-function is set to a function." |
85 | :type 'integer | |
86 | :group 'dcl) | |
43e34a41 RS |
87 | |
88 | ||
28d16ed3 | 89 | (defcustom dcl-continuation-offset 6 |
43e34a41 RS |
90 | "*Number of columns to indent a continuation line in DCL. |
91 | A continuation line is a line that follows a line ending with `-'. | |
92 | ||
93 | The meaning of this variable may be changed if | |
28d16ed3 AS |
94 | dcl-calc-cont-indent-function is set to a function." |
95 | :type 'integer | |
96 | :group 'dcl) | |
43e34a41 RS |
97 | |
98 | ||
28d16ed3 | 99 | (defcustom dcl-margin-offset 8 |
43e34a41 | 100 | "*Indentation for the first command line in DCL. |
a1506d29 | 101 | The first command line in a file or after a SUBROUTINE statement is indented |
43e34a41 RS |
102 | this much. Other command lines are indented the same number of columns as |
103 | the preceding command line. | |
28d16ed3 AS |
104 | A command line is a line that starts with `$'." |
105 | :type 'integer | |
106 | :group 'dcl) | |
43e34a41 RS |
107 | |
108 | ||
28d16ed3 | 109 | (defcustom dcl-margin-label-offset 2 |
43e34a41 RS |
110 | "*Number of columns to indent a margin label in DCL. |
111 | A margin label is a label that doesn't begin or end a block, i.e. it | |
28d16ed3 AS |
112 | doesn't match dcl-block-begin-regexp or dcl-block-end-regexp." |
113 | :type 'integer | |
114 | :group 'dcl) | |
43e34a41 RS |
115 | |
116 | ||
28d16ed3 | 117 | (defcustom dcl-comment-line-regexp "^\\$!" |
43e34a41 | 118 | "*Regexp describing the start of a comment line in DCL. |
28d16ed3 AS |
119 | Comment lines are not indented." |
120 | :type 'regexp | |
121 | :group 'dcl) | |
43e34a41 RS |
122 | |
123 | ||
28d16ed3 | 124 | (defcustom dcl-block-begin-regexp "loop[0-9]*:" |
43e34a41 | 125 | "*Regexp describing a command that begins an indented block in DCL. |
28d16ed3 AS |
126 | Set to nil to only indent at THEN-ELSE-ENDIF." |
127 | :type 'regexp | |
128 | :group 'dcl) | |
43e34a41 RS |
129 | |
130 | ||
28d16ed3 | 131 | (defcustom dcl-block-end-regexp "endloop[0-9]*:" |
43e34a41 | 132 | "*Regexp describing a command that ends an indented block in DCL. |
28d16ed3 AS |
133 | Set to nil to only indent at THEN-ELSE-ENDIF." |
134 | :type 'regexp | |
135 | :group 'dcl) | |
43e34a41 RS |
136 | |
137 | ||
28d16ed3 | 138 | (defcustom dcl-calc-command-indent-function nil |
43e34a41 | 139 | "*Function to calculate indentation for a command line in DCL. |
a1506d29 | 140 | If this variable is non-nil it is called as a function: |
43e34a41 RS |
141 | |
142 | \(func INDENT-TYPE CUR-INDENT EXTRA-INDENT LAST-POINT THIS-POINT) | |
143 | ||
a1506d29 | 144 | The function must return the number of columns to indent the current line or |
43e34a41 RS |
145 | nil to get the default indentation. |
146 | ||
147 | INDENT-TYPE is a symbol indicating what kind of indentation should be done. | |
148 | It can have the following values: | |
149 | indent the lines indentation should be increased, e.g. after THEN. | |
150 | outdent the lines indentation should be decreased, e.g a line with ENDIF. | |
151 | first-line indentation for the first line in a buffer or SUBROUTINE. | |
152 | CUR-INDENT is the indentation of the preceding command line. | |
a1506d29 | 153 | EXTRA-INDENT is the default change in indentation for this line |
43e34a41 RS |
154 | \(a negative number for 'outdent). |
155 | LAST-POINT is the buffer position of the first significant word on the | |
156 | previous line or nil if the current line is the first line. | |
157 | THIS-POINT is the buffer position of the first significant word on the | |
158 | current line. | |
159 | ||
a1506d29 | 160 | If this variable is nil, the indentation is calculated as |
43e34a41 RS |
161 | CUR-INDENT + EXTRA-INDENT. |
162 | ||
163 | This package includes two functions suitable for this: | |
164 | dcl-calc-command-indent-multiple | |
28d16ed3 | 165 | dcl-calc-command-indent-hang" |
48c9c439 | 166 | :type '(choice (const nil) function) |
28d16ed3 | 167 | :group 'dcl) |
43e34a41 RS |
168 | |
169 | ||
28d16ed3 | 170 | (defcustom dcl-calc-cont-indent-function 'dcl-calc-cont-indent-relative |
43e34a41 | 171 | "*Function to calculate indentation for a continuation line. |
a1506d29 | 172 | If this variable is non-nil it is called as a function: |
43e34a41 RS |
173 | |
174 | \(func CUR-INDENT EXTRA-INDENT) | |
175 | ||
a1506d29 | 176 | The function must return the number of columns to indent the current line or |
43e34a41 RS |
177 | nil to get the default indentation. |
178 | ||
a1506d29 | 179 | If this variable is nil, the indentation is calculated as |
43e34a41 RS |
180 | CUR-INDENT + EXTRA-INDENT. |
181 | ||
182 | This package includes one function suitable for this: | |
28d16ed3 AS |
183 | dcl-calc-cont-indent-relative" |
184 | :type 'function | |
185 | :group 'dcl) | |
43e34a41 RS |
186 | |
187 | ||
28d16ed3 | 188 | (defcustom dcl-tab-always-indent t |
43e34a41 RS |
189 | "*Controls the operation of the TAB key in DCL mode. |
190 | If t, pressing TAB always indents the current line. | |
191 | If nil, pressing TAB indents the current line if point is at the left margin. | |
a1506d29 | 192 | Data lines (i.e. lines not part of a command line or continuation line) are |
28d16ed3 AS |
193 | never indented." |
194 | :type 'boolean | |
195 | :group 'dcl) | |
43e34a41 RS |
196 | |
197 | ||
28d16ed3 AS |
198 | (defcustom dcl-electric-characters t |
199 | "*Non-nil means reindent immediately when a label, ELSE or ENDIF is inserted." | |
200 | :type 'boolean | |
201 | :group 'dcl) | |
43e34a41 RS |
202 | |
203 | ||
28d16ed3 AS |
204 | (defcustom dcl-tempo-comma ", " |
205 | "*Text to insert when a comma is needed in a template, in DCL mode." | |
206 | :type 'string | |
207 | :group 'dcl) | |
43e34a41 | 208 | |
28d16ed3 AS |
209 | (defcustom dcl-tempo-left-paren "(" |
210 | "*Text to insert when a left parenthesis is needed in a template in DCL." | |
211 | :type 'string | |
212 | :group 'dcl) | |
43e34a41 RS |
213 | |
214 | ||
28d16ed3 AS |
215 | (defcustom dcl-tempo-right-paren ")" |
216 | "*Text to insert when a right parenthesis is needed in a template in DCL." | |
217 | :type 'string | |
218 | :group 'dcl) | |
43e34a41 RS |
219 | |
220 | ; I couldn't decide what looked best, so I'll let you decide... | |
221 | ; Remember, you can also customize this with imenu-submenu-name-format. | |
28d16ed3 AS |
222 | (defcustom dcl-imenu-label-labels "Labels" |
223 | "*Imenu menu title for sub-listing with label names." | |
224 | :type 'string | |
225 | :group 'dcl) | |
226 | (defcustom dcl-imenu-label-goto "GOTO" | |
227 | "*Imenu menu title for sub-listing with GOTO statements." | |
228 | :type 'string | |
229 | :group 'dcl) | |
230 | (defcustom dcl-imenu-label-gosub "GOSUB" | |
231 | "*Imenu menu title for sub-listing with GOSUB statements." | |
232 | :type 'string | |
233 | :group 'dcl) | |
234 | (defcustom dcl-imenu-label-call "CALL" | |
235 | "*Imenu menu title for sub-listing with CALL statements." | |
236 | :type 'string | |
237 | :group 'dcl) | |
238 | ||
239 | (defcustom dcl-imenu-generic-expression | |
8a946354 SS |
240 | `((nil "^\\$[ \t]*\\([A-Za-z0-9_\$]+\\):[ \t]+SUBROUTINE\\b" 1) |
241 | (,dcl-imenu-label-labels | |
43e34a41 | 242 | "^\\$[ \t]*\\([A-Za-z0-9_\$]+\\):\\([ \t]\\|$\\)" 1) |
8a946354 SS |
243 | (,dcl-imenu-label-goto "\\s-GOTO[ \t]+\\([A-Za-z0-9_\$]+\\)" 1) |
244 | (,dcl-imenu-label-gosub "\\s-GOSUB[ \t]+\\([A-Za-z0-9_\$]+\\)" 1) | |
245 | (,dcl-imenu-label-call "\\s-CALL[ \t]+\\([A-Za-z0-9_\$]+\\)" 1)) | |
28d16ed3 | 246 | "*Default imenu generic expression for DCL. |
43e34a41 RS |
247 | |
248 | The default includes SUBROUTINE labels in the main listing and | |
a1506d29 | 249 | sub-listings for other labels, CALL, GOTO and GOSUB statements. |
28d16ed3 AS |
250 | See `imenu-generic-expression' for details." |
251 | :type '(repeat (sexp :tag "Imenu Expression")) | |
252 | :group 'dcl) | |
43e34a41 RS |
253 | |
254 | ||
28d16ed3 AS |
255 | (defcustom dcl-mode-hook nil |
256 | "*Hook called by `dcl-mode'." | |
257 | :type 'hook | |
258 | :group 'dcl) | |
43e34a41 RS |
259 | |
260 | ||
261 | ;;; *** Global variables **************************************************** | |
262 | ||
263 | ||
264 | (defvar dcl-mode-syntax-table nil | |
265 | "Syntax table used in DCL-buffers.") | |
266 | (if dcl-mode-syntax-table | |
267 | () | |
268 | (setq dcl-mode-syntax-table (make-syntax-table)) | |
269 | (modify-syntax-entry ?! "<" dcl-mode-syntax-table) ; comment start | |
270 | (modify-syntax-entry ?\n ">" dcl-mode-syntax-table) ; comment end | |
271 | (modify-syntax-entry ?< "(>" dcl-mode-syntax-table) ; < and ... | |
272 | (modify-syntax-entry ?> ")<" dcl-mode-syntax-table) ; > is a matching pair | |
a1506d29 | 273 | ) |
43e34a41 RS |
274 | |
275 | ||
276 | (defvar dcl-mode-map () | |
277 | "Keymap used in DCL-mode buffers.") | |
278 | (if dcl-mode-map | |
279 | () | |
280 | (setq dcl-mode-map (make-sparse-keymap)) | |
281 | (define-key dcl-mode-map "\e\n" 'dcl-split-line) | |
282 | (define-key dcl-mode-map "\e\t" 'tempo-complete-tag) | |
283 | (define-key dcl-mode-map "\e^" 'dcl-delete-indentation) | |
284 | (define-key dcl-mode-map "\em" 'dcl-back-to-indentation) | |
285 | (define-key dcl-mode-map "\ee" 'dcl-forward-command) | |
286 | (define-key dcl-mode-map "\ea" 'dcl-backward-command) | |
287 | (define-key dcl-mode-map "\e\C-q" 'dcl-indent-command) | |
288 | (define-key dcl-mode-map "\t" 'dcl-tab) | |
289 | (define-key dcl-mode-map ":" 'dcl-electric-character) | |
290 | (define-key dcl-mode-map "F" 'dcl-electric-character) | |
291 | (define-key dcl-mode-map "f" 'dcl-electric-character) | |
292 | (define-key dcl-mode-map "E" 'dcl-electric-character) | |
293 | (define-key dcl-mode-map "e" 'dcl-electric-character) | |
294 | (define-key dcl-mode-map "\C-c\C-o" 'dcl-set-option) | |
295 | (define-key dcl-mode-map "\C-c\C-f" 'tempo-forward-mark) | |
296 | (define-key dcl-mode-map "\C-c\C-b" 'tempo-backward-mark) | |
297 | ||
298 | (define-key dcl-mode-map [menu-bar] (make-sparse-keymap)) | |
299 | (define-key dcl-mode-map [menu-bar dcl] | |
300 | (cons "DCL" (make-sparse-keymap "DCL"))) | |
301 | ||
302 | ;; Define these in bottom-up order | |
303 | (define-key dcl-mode-map [menu-bar dcl tempo-backward-mark] | |
304 | '("Previous template mark" . tempo-backward-mark)) | |
305 | (define-key dcl-mode-map [menu-bar dcl tempo-forward-mark] | |
306 | '("Next template mark" . tempo-forward-mark)) | |
307 | (define-key dcl-mode-map [menu-bar dcl tempo-complete-tag] | |
308 | '("Complete template tag" . tempo-complete-tag)) | |
309 | (define-key dcl-mode-map [menu-bar dcl dcl-separator-tempo] | |
310 | '("--")) | |
311 | (define-key dcl-mode-map [menu-bar dcl dcl-save-all-options] | |
312 | '("Save all options" . dcl-save-all-options)) | |
313 | (define-key dcl-mode-map [menu-bar dcl dcl-save-nondefault-options] | |
314 | '("Save changed options" . dcl-save-nondefault-options)) | |
315 | (define-key dcl-mode-map [menu-bar dcl dcl-set-option] | |
316 | '("Set option" . dcl-set-option)) | |
317 | (define-key dcl-mode-map [menu-bar dcl dcl-separator-option] | |
318 | '("--")) | |
319 | (define-key dcl-mode-map [menu-bar dcl dcl-delete-indentation] | |
320 | '("Delete indentation" . dcl-delete-indentation)) | |
321 | (define-key dcl-mode-map [menu-bar dcl dcl-split-line] | |
322 | '("Split line" . dcl-split-line)) | |
323 | (define-key dcl-mode-map [menu-bar dcl dcl-indent-command] | |
324 | '("Indent command" . dcl-indent-command)) | |
325 | (define-key dcl-mode-map [menu-bar dcl dcl-tab] | |
326 | '("Indent line/insert tab" . dcl-tab)) | |
327 | (define-key dcl-mode-map [menu-bar dcl dcl-back-to-indentation] | |
328 | '("Back to indentation" . dcl-back-to-indentation)) | |
329 | (define-key dcl-mode-map [menu-bar dcl dcl-forward-command] | |
330 | '("End of statement" . dcl-forward-command)) | |
331 | (define-key dcl-mode-map [menu-bar dcl dcl-backward-command] | |
332 | '("Beginning of statement" . dcl-backward-command)) | |
333 | ;; imenu is only supported for versions with imenu-generic-expression | |
334 | (if (boundp 'imenu-generic-expression) | |
335 | (progn | |
336 | (define-key dcl-mode-map [menu-bar dcl dcl-separator-movement] | |
337 | '("--")) | |
338 | (define-key dcl-mode-map [menu-bar dcl imenu] | |
339 | '("Buffer index menu" . imenu)))) | |
340 | ) | |
341 | ||
342 | ||
28d16ed3 | 343 | (defcustom dcl-ws-r |
43e34a41 RS |
344 | "\\([ \t]*-[ \t]*\\(!.*\\)*\n\\)*[ \t]*" |
345 | "Regular expression describing white space in a DCL command line. | |
346 | White space is any number of continued lines with only space,tab,endcomment | |
28d16ed3 AS |
347 | followed by space or tab." |
348 | :type 'regexp | |
349 | :group 'dcl) | |
43e34a41 RS |
350 | |
351 | ||
28d16ed3 | 352 | (defcustom dcl-label-r |
43e34a41 RS |
353 | "[a-zA-Z0-9_\$]*:\\([ \t!]\\|$\\)" |
354 | "Regular expression describing a label. | |
28d16ed3 AS |
355 | A label is a name followed by a colon followed by white-space or end-of-line." |
356 | :type 'regexp | |
357 | :group 'dcl) | |
43e34a41 RS |
358 | |
359 | ||
a1506d29 | 360 | (defcustom dcl-cmd-r |
43e34a41 RS |
361 | "^\\$\\(.*-[ \t]*\\(!.*\\)*\n\\)*[^!\"\n]*\\(\".*\\(\"\".*\\)*\"\\)*[^!\"\n]*" |
362 | "Regular expression describing a DCL command line up to a trailing comment. | |
363 | A line starting with $, optionally followed by continuation lines, | |
364 | followed by the end of the command line. | |
365 | A continuation line is any characters followed by `-', | |
28d16ed3 AS |
366 | optionally followed by a comment, followed by a newline." |
367 | :type 'regexp | |
368 | :group 'dcl) | |
43e34a41 RS |
369 | |
370 | ||
a1506d29 | 371 | (defcustom dcl-command-regexp |
43e34a41 RS |
372 | "^\\$\\(.*-[ \t]*\\(!.*\\)*\n\\)*.*\\(\".*\\(\"\".*\\)*\"\\)*" |
373 | "Regular expression describing a DCL command line. | |
374 | A line starting with $, optionally followed by continuation lines, | |
375 | followed by the end of the command line. | |
376 | A continuation line is any characters followed by `-', | |
28d16ed3 AS |
377 | optionally followed by a comment, followed by a newline." |
378 | :type 'regexp | |
379 | :group 'dcl) | |
43e34a41 RS |
380 | |
381 | ||
28d16ed3 | 382 | (defcustom dcl-electric-reindent-regexps |
43e34a41 RS |
383 | (list "endif" "else" dcl-label-r) |
384 | "*Regexps that can trigger an electric reindent. | |
385 | A list of regexps that will trigger a reindent if the last letter | |
386 | is defined as dcl-electric-character. | |
387 | ||
388 | E.g.: if this list contains `endif', the key `f' is defined as | |
389 | dcl-electric-character and the you have just typed the `f' in | |
28d16ed3 AS |
390 | `endif', the line will be reindented." |
391 | :type '(repeat regexp) | |
392 | :group 'dcl) | |
43e34a41 RS |
393 | |
394 | ||
a1506d29 | 395 | (defvar dcl-option-alist |
43e34a41 RS |
396 | '((dcl-basic-offset dcl-option-value-basic) |
397 | (dcl-continuation-offset curval) | |
398 | (dcl-margin-offset dcl-option-value-margin-offset) | |
399 | (dcl-margin-label-offset dcl-option-value-offset) | |
400 | (dcl-comment-line-regexp dcl-option-value-comment-line) | |
401 | (dcl-block-begin-regexp curval) | |
402 | (dcl-block-end-regexp curval) | |
a1506d29 JB |
403 | (dcl-tab-always-indent toggle) |
404 | (dcl-electric-characters toggle) | |
43e34a41 | 405 | (dcl-electric-reindent-regexps curval) |
a1506d29 JB |
406 | (dcl-tempo-comma curval) |
407 | (dcl-tempo-left-paren curval) | |
408 | (dcl-tempo-right-paren curval) | |
43e34a41 RS |
409 | (dcl-calc-command-indent-function curval) |
410 | (dcl-calc-cont-indent-function curval) | |
411 | (comment-start curval) | |
412 | (comment-start-skip curval) | |
413 | ) | |
414 | "Options and default values for dcl-set-option. | |
415 | ||
416 | An alist with option variables and functions or keywords to get a | |
417 | default value for the option. | |
418 | ||
419 | The keywords are: | |
420 | curval the current value | |
421 | toggle the opposite of the current value (for t/nil)") | |
422 | ||
423 | ||
a1506d29 | 424 | (defvar dcl-option-history |
43e34a41 RS |
425 | (mapcar (lambda (option-assoc) |
426 | (format "%s" (car option-assoc))) | |
427 | dcl-option-alist) | |
428 | "The history list for dcl-set-option. | |
429 | Preloaded with all known option names from dcl-option-alist") | |
430 | ||
431 | ||
432 | ;; Must be defined after dcl-cmd-r | |
433 | ;; This version is more correct but much slower than the one | |
434 | ;; above. This version won't find GOTOs in comments or text strings. | |
435 | ;(defvar dcl-imenu-generic-expression | |
436 | ; (` | |
437 | ; ((nil "^\\$[ \t]*\\([A-Za-z0-9_\$]+\\):[ \t]+SUBROUTINE\\b" 1) | |
438 | ; ("Labels" "^\\$[ \t]*\\([A-Za-z0-9_\$]+\\):\\([ \t]\\|$\\)" 1) | |
439 | ; ("GOTO" (, (concat dcl-cmd-r "GOTO[ \t]+\\([A-Za-z0-9_\$]+\\)")) 5) | |
440 | ; ("GOSUB" (, (concat dcl-cmd-r | |
441 | ; "GOSUB[ \t]+\\([A-Za-z0-9_\$]+\\)")) 5) | |
442 | ; ("CALL" (, (concat dcl-cmd-r "CALL[ \t]+\\([A-Za-z0-9_\$]+\\)")) 5))) | |
443 | ; "*Default imenu generic expression for DCL. | |
444 | ||
445 | ;The default includes SUBROUTINE labels in the main listing and | |
a1506d29 | 446 | ;sub-listings for other labels, CALL, GOTO and GOSUB statements. |
43e34a41 RS |
447 | ;See `imenu-generic-expression' in a recent (e.g. Emacs 19.30) imenu.el |
448 | ;for details.") | |
449 | ||
450 | ||
451 | ;;; *** Mode initialization ************************************************* | |
452 | ||
453 | ||
454 | ;;;###autoload | |
455 | (defun dcl-mode () | |
456 | "Major mode for editing DCL-files. | |
457 | ||
458 | This mode indents command lines in blocks. (A block is commands between | |
459 | THEN-ELSE-ENDIF and between lines matching dcl-block-begin-regexp and | |
460 | dcl-block-end-regexp.) | |
461 | ||
462 | Labels are indented to a fixed position unless they begin or end a block. | |
a1506d29 | 463 | Whole-line comments (matching dcl-comment-line-regexp) are not indented. |
43e34a41 RS |
464 | Data lines are not indented. |
465 | ||
466 | Key bindings: | |
467 | ||
468 | \\{dcl-mode-map} | |
469 | Commands not usually bound to keys: | |
470 | ||
471 | \\[dcl-save-nondefault-options]\t\tSave changed options | |
472 | \\[dcl-save-all-options]\t\tSave all options | |
473 | \\[dcl-save-option]\t\t\tSave any option | |
474 | \\[dcl-save-mode]\t\t\tSave buffer mode | |
475 | ||
476 | Variables controlling indentation style and extra features: | |
477 | ||
478 | dcl-basic-offset | |
479 | Extra indentation within blocks. | |
480 | ||
481 | dcl-continuation-offset | |
482 | Extra indentation for continued lines. | |
483 | ||
484 | dcl-margin-offset | |
485 | Indentation for the first command line in a file or SUBROUTINE. | |
486 | ||
487 | dcl-margin-label-offset | |
488 | Indentation for a label. | |
489 | ||
490 | dcl-comment-line-regexp | |
a1506d29 | 491 | Lines matching this regexp will not be indented. |
43e34a41 RS |
492 | |
493 | dcl-block-begin-regexp | |
494 | dcl-block-end-regexp | |
495 | Regexps that match command lines that begin and end, respectively, | |
496 | a block of commmand lines that will be given extra indentation. | |
497 | Command lines between THEN-ELSE-ENDIF are always indented; these variables | |
498 | make it possible to define other places to indent. | |
499 | Set to nil to disable this feature. | |
500 | ||
501 | dcl-calc-command-indent-function | |
502 | Can be set to a function that customizes indentation for command lines. | |
503 | Two such functions are included in the package: | |
504 | dcl-calc-command-indent-multiple | |
505 | dcl-calc-command-indent-hang | |
506 | ||
507 | dcl-calc-cont-indent-function | |
508 | Can be set to a function that customizes indentation for continued lines. | |
509 | One such function is included in the package: | |
510 | dcl-calc-cont-indent-relative (set by default) | |
511 | ||
512 | dcl-tab-always-indent | |
513 | If t, pressing TAB always indents the current line. | |
a1506d29 | 514 | If nil, pressing TAB indents the current line if point is at the left |
43e34a41 RS |
515 | margin. |
516 | ||
a1506d29 | 517 | dcl-electric-characters |
43e34a41 RS |
518 | Non-nil causes lines to be indented at once when a label, ELSE or ENDIF is |
519 | typed. | |
520 | ||
521 | dcl-electric-reindent-regexps | |
522 | Use this variable and function dcl-electric-character to customize | |
523 | which words trigger electric indentation. | |
524 | ||
525 | dcl-tempo-comma | |
526 | dcl-tempo-left-paren | |
527 | dcl-tempo-right-paren | |
528 | These variables control the look of expanded templates. | |
529 | ||
530 | dcl-imenu-generic-expression | |
531 | Default value for imenu-generic-expression. The default includes | |
532 | SUBROUTINE labels in the main listing and sub-listings for | |
a1506d29 | 533 | other labels, CALL, GOTO and GOSUB statements. |
43e34a41 RS |
534 | |
535 | dcl-imenu-label-labels | |
536 | dcl-imenu-label-goto | |
537 | dcl-imenu-label-gosub | |
538 | dcl-imenu-label-call | |
539 | Change the text that is used as sub-listing labels in imenu. | |
540 | ||
541 | Loading this package calls the value of the variable | |
a1506d29 JB |
542 | `dcl-mode-load-hook' with no args, if that value is non-nil. |
543 | Turning on DCL mode calls the value of the variable `dcl-mode-hook' | |
43e34a41 RS |
544 | with no args, if that value is non-nil. |
545 | ||
546 | ||
547 | The following example uses the default values for all variables: | |
548 | ||
a1506d29 | 549 | $! This is a comment line that is not indented (it matches |
43e34a41 RS |
550 | $! dcl-comment-line-regexp) |
551 | $! Next follows the first command line. It is indented dcl-margin-offset. | |
552 | $ i = 1 | |
553 | $ ! Other comments are indented like command lines. | |
554 | $ ! A margin label indented dcl-margin-label-offset: | |
a1506d29 | 555 | $ label: |
43e34a41 RS |
556 | $ if i.eq.1 |
557 | $ then | |
a1506d29 | 558 | $ ! Lines between THEN-ELSE and ELSE-ENDIF are |
43e34a41 RS |
559 | $ ! indented dcl-basic-offset |
560 | $ loop1: ! This matches dcl-block-begin-regexp... | |
561 | $ ! ...so this line is indented dcl-basic-offset | |
a1506d29 | 562 | $ text = \"This \" + - ! is a continued line |
43e34a41 RS |
563 | \"lined up with the command line\" |
564 | $ type sys$input | |
a1506d29 | 565 | Data lines are not indented at all. |
43e34a41 RS |
566 | $ endloop1: ! This matches dcl-block-end-regexp |
567 | $ endif | |
568 | $ | |
569 | " | |
570 | (interactive) | |
571 | (kill-all-local-variables) | |
572 | (set-syntax-table dcl-mode-syntax-table) | |
573 | ||
574 | (make-local-variable 'indent-line-function) | |
575 | (setq indent-line-function 'dcl-indent-line) | |
576 | ||
577 | (make-local-variable 'comment-start) | |
578 | (setq comment-start "!") | |
579 | ||
580 | (make-local-variable 'comment-end) | |
581 | (setq comment-end "") | |
582 | ||
583 | (make-local-variable 'comment-multi-line) | |
584 | (setq comment-multi-line nil) | |
a1506d29 | 585 | |
43e34a41 RS |
586 | ;; This used to be "^\\$[ \t]*![ \t]*" which looks more correct. |
587 | ;; The drawback was that you couldn't make empty comment lines by pressing | |
588 | ;; C-M-j repeatedly - only the first line became a comment line. | |
589 | ;; This version has the drawback that the "$" can be anywhere in the line, | |
590 | ;; and something inappropriate might be interpreted as a comment. | |
591 | (make-local-variable 'comment-start-skip) | |
592 | (setq comment-start-skip "\\$[ \t]*![ \t]*") | |
593 | ||
594 | (if (boundp 'imenu-generic-expression) | |
c0b08eb0 DL |
595 | (progn (setq imenu-generic-expression dcl-imenu-generic-expression) |
596 | (setq imenu-case-fold-search t))) | |
43e34a41 RS |
597 | (setq imenu-create-index-function 'dcl-imenu-create-index-function) |
598 | ||
599 | (make-local-variable 'dcl-comment-line-regexp) | |
600 | (make-local-variable 'dcl-block-begin-regexp) | |
601 | (make-local-variable 'dcl-block-end-regexp) | |
602 | (make-local-variable 'dcl-basic-offset) | |
603 | (make-local-variable 'dcl-continuation-offset) | |
604 | (make-local-variable 'dcl-margin-label-offset) | |
605 | (make-local-variable 'dcl-margin-offset) | |
606 | (make-local-variable 'dcl-tab-always-indent) | |
607 | (make-local-variable 'dcl-electric-characters) | |
608 | (make-local-variable 'dcl-calc-command-indent-function) | |
609 | (make-local-variable 'dcl-calc-cont-indent-function) | |
610 | (make-local-variable 'dcl-electric-reindent-regexps) | |
a1506d29 | 611 | |
43e34a41 RS |
612 | (setq major-mode 'dcl-mode) |
613 | (setq mode-name "DCL") | |
614 | (use-local-map dcl-mode-map) | |
615 | (tempo-use-tag-list 'dcl-tempo-tags) | |
616 | (run-hooks 'dcl-mode-hook)) | |
617 | ||
618 | ||
619 | ;;; *** Movement commands *************************************************** | |
620 | ||
621 | ||
622 | ;;;------------------------------------------------------------------------- | |
623 | (defun dcl-beginning-of-statement () | |
624 | "Go to the beginning of the preceding or current command line." | |
625 | (interactive) | |
626 | (re-search-backward dcl-command-regexp nil t)) | |
627 | ||
628 | ||
629 | ;;;------------------------------------------------------------------------- | |
630 | (defun dcl-end-of-statement () | |
631 | "Go to the end of the next or current command line." | |
632 | (interactive) | |
633 | (if (or (dcl-end-of-command-p) | |
634 | (dcl-beginning-of-command-p) | |
635 | (not (dcl-command-p))) | |
636 | () | |
637 | (dcl-beginning-of-statement)) | |
638 | (re-search-forward dcl-command-regexp nil t)) | |
639 | ||
640 | ||
641 | ;;;------------------------------------------------------------------------- | |
642 | (defun dcl-beginning-of-command () | |
643 | "Move point to beginning of current command." | |
644 | (interactive) | |
645 | (let ((type (dcl-get-line-type))) | |
646 | (if (and (eq type '$) | |
647 | (bolp)) | |
648 | () ; already in the correct position | |
649 | (dcl-beginning-of-statement)))) | |
650 | ||
651 | ||
652 | ;;;------------------------------------------------------------------------- | |
653 | (defun dcl-end-of-command () | |
654 | "Move point to end of current command or next command if not on a command." | |
655 | (interactive) | |
656 | (let ((type (dcl-get-line-type)) | |
657 | (start (point))) | |
658 | (if (or (eq type '$) | |
659 | (eq type '-)) | |
660 | (progn | |
661 | (dcl-beginning-of-command) | |
662 | (dcl-end-of-statement)) | |
663 | (dcl-end-of-statement)))) | |
664 | ||
665 | ||
666 | ;;;------------------------------------------------------------------------- | |
667 | (defun dcl-backward-command (&optional incl-comment-commands) | |
668 | "Move backward to a command. | |
669 | Move point to the preceding command line that is not a comment line, | |
670 | a command line with only a comment, only contains a `$' or only | |
a1506d29 | 671 | contains a label. |
43e34a41 RS |
672 | |
673 | Returns point of the found command line or nil if not able to move." | |
674 | (interactive) | |
675 | (let ((start (point)) | |
676 | done | |
677 | retval) | |
678 | ;; Find first non-empty command line | |
679 | (while (not done) | |
680 | ;; back up one statement and look at the command | |
681 | (if (dcl-beginning-of-statement) | |
682 | (cond | |
683 | ((and dcl-block-begin-regexp ; might be nil | |
684 | (looking-at (concat "^\\$" dcl-ws-r | |
685 | dcl-block-begin-regexp))) | |
686 | (setq done t retval (point))) | |
687 | ((and dcl-block-end-regexp ; might be nil | |
688 | (looking-at (concat "^\\$" dcl-ws-r | |
689 | dcl-block-end-regexp))) | |
690 | (setq done t retval (point))) | |
691 | ((looking-at dcl-comment-line-regexp) | |
692 | t) ; comment line, one more loop | |
693 | ((and (not incl-comment-commands) | |
694 | (looking-at "\\$[ \t]*!")) | |
695 | t) ; comment only command, loop... | |
696 | ((looking-at "^\\$[ \t]*$") | |
697 | t) ; empty line, one more loop | |
698 | ((not (looking-at | |
699 | (concat "^\\$" dcl-ws-r dcl-label-r dcl-ws-r "$"))) | |
700 | (setq done t) ; not a label-only line, exit the loop | |
701 | (setq retval (point)))) | |
702 | ;; We couldn't go further back, and we haven't found a command yet. | |
703 | ;; Return to the start positionn | |
704 | (goto-char start) | |
705 | (setq done t) | |
706 | (setq retval nil))) | |
707 | retval)) | |
708 | ||
709 | ||
710 | ;;;------------------------------------------------------------------------- | |
711 | (defun dcl-forward-command (&optional incl-comment-commands) | |
712 | "Move forward to a command. | |
713 | Move point to the end of the next command line that is not a comment line, | |
714 | a command line with only a comment, only contains a `$' or only | |
a1506d29 | 715 | contains a label. |
43e34a41 RS |
716 | |
717 | Returns point of the found command line or nil if not able to move." | |
718 | (interactive) | |
719 | (let ((start (point)) | |
720 | done | |
721 | retval) | |
722 | ;; Find first non-empty command line | |
723 | (while (not done) | |
724 | ;; go forward one statement and look at the command | |
725 | (if (dcl-end-of-statement) | |
726 | (save-excursion | |
727 | (dcl-beginning-of-statement) | |
728 | (cond | |
729 | ((and dcl-block-begin-regexp ; might be nil | |
730 | (looking-at (concat "^\\$" dcl-ws-r | |
731 | dcl-block-begin-regexp))) | |
732 | (setq done t) | |
733 | (setq retval (point))) | |
734 | ((and dcl-block-end-regexp ; might be nil | |
735 | (looking-at (concat "^\\$" dcl-ws-r | |
736 | dcl-block-end-regexp))) | |
737 | (setq done t) | |
738 | (setq retval (point))) | |
739 | ((looking-at dcl-comment-line-regexp) | |
740 | t) ; comment line, one more loop | |
741 | ((and (not incl-comment-commands) | |
742 | (looking-at "\\$[ \t]*!")) | |
743 | t) ; comment only command, loop... | |
744 | ((looking-at "^\\$[ \t]*$") | |
745 | t) ; empty line, one more loop | |
746 | ((not (looking-at | |
747 | (concat "^\\$" dcl-ws-r dcl-label-r dcl-ws-r "$"))) | |
748 | (setq done t) ; not a label-only line, exit the loop | |
749 | (setq retval (point))))) | |
750 | ;; We couldn't go further back, and we haven't found a command yet. | |
751 | ;; Return to the start positionn | |
752 | (goto-char start) | |
753 | (setq done t) | |
754 | (setq retval nil))) | |
755 | retval)) | |
756 | ||
757 | ||
758 | ;;;------------------------------------------------------------------------- | |
759 | (defun dcl-back-to-indentation () | |
760 | "Move point to the first non-whitespace character on this line. | |
761 | Leading $ and labels counts as whitespace in this case. | |
762 | If this is a comment line then move to the first non-whitespace character | |
763 | in the comment. | |
764 | ||
a1506d29 | 765 | Typing \\[dcl-back-to-indentation] several times in a row will move point to other |
43e34a41 | 766 | `interesting' points closer to the left margin, and then back to the |
a1506d29 | 767 | rightmost point again. |
43e34a41 RS |
768 | |
769 | E.g. on the following line, point would go to the positions indicated | |
770 | by the numbers in order 1-2-3-1-... : | |
771 | ||
772 | $ label: command | |
773 | 3 2 1" | |
774 | (interactive) | |
775 | (if (eq last-command 'dcl-back-to-indentation) | |
776 | (dcl-back-to-indentation-1 (point)) | |
777 | (dcl-back-to-indentation-1))) | |
778 | (defun dcl-back-to-indentation-1 (&optional limit) | |
779 | "Helper function for dcl-back-to-indentation" | |
780 | ||
781 | ;; "Indentation points" that we will travel to | |
782 | ;; $ l: ! comment | |
783 | ;; 4 3 2 1 | |
784 | ;; | |
785 | ;; $ ! text | |
786 | ;; 3 2 1 | |
787 | ;; | |
a1506d29 | 788 | ;; $ l: command ! |
43e34a41 RS |
789 | ;; 3 2 1 |
790 | ;; | |
791 | ;; text | |
792 | ;; 1 | |
793 | ||
794 | (let* ((default-limit (save-excursion (end-of-line) (1+ (point)))) | |
795 | (limit (or limit default-limit)) | |
796 | (last-good-point (point)) | |
797 | (opoint (point))) | |
798 | ;; Move over blanks | |
799 | (back-to-indentation) | |
800 | ||
801 | ;; If we already were at the outermost indentation point then we | |
802 | ;; start searching for the innermost point again. | |
803 | (if (= (point) opoint) | |
804 | (setq limit default-limit)) | |
805 | ||
806 | (if (< (point) limit) | |
807 | (setq last-good-point (point))) | |
808 | ||
809 | (cond | |
a1506d29 | 810 | ;; Special treatment for comment lines. We are trying to allow |
43e34a41 RS |
811 | ;; things like "$ !*" as comment lines. |
812 | ((looking-at dcl-comment-line-regexp) | |
813 | (re-search-forward (concat dcl-comment-line-regexp "[ \t]*") limit t) | |
814 | (if (< (point) limit) | |
815 | (setq last-good-point (point)))) | |
816 | ||
817 | ;; Normal command line | |
818 | ((looking-at "^\\$[ \t]*") | |
819 | ;; Move over leading "$" and blanks | |
820 | (re-search-forward "^\\$[ \t]*" limit t) | |
821 | (if (< (point) limit) | |
822 | (setq last-good-point (point))) | |
823 | ||
824 | ;; Move over a label (if it isn't a block begin/end) | |
825 | ;; We must treat block begin/end labels as commands because | |
826 | ;; dcl-set-option relies on it. | |
827 | (if (and (looking-at dcl-label-r) | |
828 | (not (or (and dcl-block-begin-regexp | |
829 | (looking-at dcl-block-begin-regexp)) | |
830 | (and dcl-block-end-regexp | |
831 | (looking-at dcl-block-end-regexp))))) | |
832 | (re-search-forward (concat dcl-label-r "[ \t]*") limit t)) | |
833 | (if (< (point) limit) | |
834 | (setq last-good-point (point))) | |
835 | ||
836 | ;; Move over the beginning of a comment | |
837 | (if (looking-at "![ \t]*") | |
838 | (re-search-forward "![ \t]*" limit t)) | |
839 | (if (< (point) limit) | |
840 | (setq last-good-point (point))))) | |
841 | (goto-char last-good-point))) | |
842 | ||
843 | ||
844 | ;;; *** Support for indentation ********************************************* | |
845 | ||
846 | ||
847 | (defun dcl-get-line-type () | |
848 | "Determine the type of the current line. | |
849 | Returns one of the following symbols: | |
850 | $ for a complete command line or the beginning of a command line. | |
851 | - for a continuation line | |
852 | $! for a comment line | |
853 | data for a data line | |
854 | empty-data for an empty line following a data line | |
855 | empty-$ for an empty line following a command line" | |
856 | (or | |
857 | ;; Check if it's a comment line. | |
858 | ;; A comment line starts with $! | |
859 | (save-excursion | |
860 | (beginning-of-line) | |
861 | (if (looking-at dcl-comment-line-regexp) | |
862 | '$!)) | |
863 | ;; Check if it's a command line. | |
864 | ;; A command line starts with $ | |
865 | (save-excursion | |
866 | (beginning-of-line) | |
867 | (if (looking-at "^\\$") | |
868 | '$)) | |
869 | ;; Check if it's a continuation line | |
870 | (save-excursion | |
871 | (beginning-of-line) | |
872 | ;; If we're at the beginning of the buffer it can't be a continuation | |
873 | (if (bobp) | |
874 | () | |
875 | (let ((opoint (point))) | |
876 | (dcl-beginning-of-statement) | |
877 | (re-search-forward dcl-command-regexp opoint t) | |
878 | (if (>= (point) opoint) | |
879 | '-)))) | |
880 | ;; Empty lines might be different things | |
881 | (save-excursion | |
882 | (if (and (bolp) (eolp)) | |
883 | (if (bobp) | |
884 | 'empty-$ | |
885 | (forward-line -1) | |
886 | (let ((type (dcl-get-line-type))) | |
887 | (cond | |
888 | ((or (equal type '$) (equal type '$!) (equal type '-)) | |
889 | 'empty-$) | |
890 | ((equal type 'data) | |
891 | 'empty-data)))))) | |
892 | ;; Anything else must be a data line | |
893 | (progn 'data) | |
894 | )) | |
895 | ||
896 | ||
897 | ;;;------------------------------------------------------------------------- | |
898 | (defun dcl-indentation-point () | |
899 | "Return point of first non-`whitespace' on this line." | |
900 | (save-excursion | |
901 | (dcl-back-to-indentation) | |
902 | (point))) | |
903 | ||
a1506d29 | 904 | |
43e34a41 RS |
905 | ;;;--------------------------------------------------------------------------- |
906 | (defun dcl-show-line-type () | |
907 | "Test dcl-get-line-type." | |
908 | (interactive) | |
909 | (let ((type (dcl-get-line-type))) | |
910 | (cond | |
911 | ((equal type '$) | |
912 | (message "command line")) | |
913 | ((equal type '\?) | |
914 | (message "?")) | |
915 | ((equal type '$!) | |
916 | (message "comment line")) | |
917 | ((equal type '-) | |
918 | (message "continuation line")) | |
919 | ((equal type 'data) | |
920 | (message "data")) | |
921 | ((equal type 'empty-data) | |
922 | (message "empty-data")) | |
923 | ((equal type 'empty-$) | |
924 | (message "empty-$")) | |
925 | (t | |
926 | (message "hupp")) | |
927 | ))) | |
928 | ||
929 | ||
930 | ;;; *** Perform indentation ************************************************* | |
931 | ||
932 | ||
933 | ;;;--------------------------------------------------------------------------- | |
934 | (defun dcl-calc-command-indent-multiple | |
935 | (indent-type cur-indent extra-indent last-point this-point) | |
936 | "Indent lines to a multiple of dcl-basic-offset. | |
937 | ||
938 | Set dcl-calc-command-indent-function to this function to customize | |
939 | indentation of command lines. | |
940 | ||
941 | Command lines that need to be indented beyond the left margin are | |
942 | always indented to a column that is a multiple of dcl-basic-offset, as | |
943 | if tab stops were set at 4, 8, 12, etc. | |
944 | ||
945 | This supports a formatting style like this (dcl-margin offset = 2, | |
946 | dcl-basic-offset = 4): | |
947 | ||
948 | $ if cond | |
949 | $ then | |
950 | $ if cond | |
951 | $ then | |
952 | $ ! etc | |
953 | " | |
954 | ;; calculate indentation if it's an interesting indent-type, | |
955 | ;; otherwise return nil to get the default indentation | |
956 | (let ((indent)) | |
957 | (cond | |
958 | ((equal indent-type 'indent) | |
959 | (setq indent (- cur-indent (% cur-indent dcl-basic-offset))) | |
960 | (setq indent (+ indent extra-indent)))))) | |
961 | ||
962 | ||
963 | ;;;--------------------------------------------------------------------------- | |
964 | ;; Some people actually writes likes this. To each his own... | |
965 | (defun dcl-calc-command-indent-hang | |
966 | (indent-type cur-indent extra-indent last-point this-point) | |
967 | "Indent lines as default, but indent THEN, ELSE and ENDIF extra. | |
968 | ||
969 | Set dcl-calc-command-indent-function to this function to customize | |
970 | indentation of command lines. | |
971 | ||
972 | This function supports a formatting style like this: | |
973 | ||
974 | $ if cond | |
975 | $ then | |
976 | $ xxx | |
977 | $ endif | |
978 | $ xxx | |
979 | ||
980 | If you use this function you will probably want to add \"then\" to | |
981 | dcl-electric-reindent-regexps and define the key \"n\" as | |
a1506d29 | 982 | dcl-electric-character. |
43e34a41 RS |
983 | " |
984 | (let ((case-fold-search t)) | |
985 | (save-excursion | |
986 | (cond | |
987 | ;; No indentation, this word is `then': +2 | |
988 | ;; last word was endif: -2 | |
989 | ((null indent-type) | |
990 | (or (progn | |
991 | (goto-char this-point) | |
992 | (if (looking-at "\\bthen\\b") | |
993 | (+ cur-indent extra-indent 2))) | |
994 | (progn | |
995 | (goto-char last-point) | |
996 | (if (looking-at "\\bendif\\b") | |
997 | (- (+ cur-indent extra-indent) 2))))) | |
998 | ;; Indentation, last word was `then' or `else': -2 | |
999 | ((equal indent-type 'indent) | |
1000 | (goto-char last-point) | |
1001 | (cond | |
1002 | ((looking-at "\\bthen\\b") | |
1003 | (- (+ cur-indent extra-indent) 2)) | |
1004 | ((looking-at "\\belse\\b") | |
1005 | (- (+ cur-indent extra-indent) 2)))) | |
a1506d29 | 1006 | ;; Outdent, this word is `endif' or `else': + 2 |
43e34a41 RS |
1007 | ((equal indent-type 'outdent) |
1008 | (goto-char this-point) | |
1009 | (cond | |
1010 | ((looking-at "\\bendif\\b") | |
1011 | (+ cur-indent extra-indent 2)) | |
1012 | ((looking-at "\\belse\\b") | |
1013 | (+ cur-indent extra-indent 2)))))))) | |
1014 | ||
1015 | ||
1016 | ;;;--------------------------------------------------------------------------- | |
1017 | (defun dcl-calc-command-indent () | |
1018 | "Calculate how much the current line shall be indented. | |
1019 | The line is known to be a command line. | |
1020 | ||
1021 | Find the indentation of the preceding line and analyze its contents to | |
1022 | see if the current lines should be indented. | |
1023 | Analyze the current line to see if it should be `outdented'. | |
1024 | ||
1025 | Calculate the indentation of the current line, either with the default | |
1026 | method or by calling dcl-calc-command-indent-function if it is | |
1027 | non-nil. | |
1028 | ||
1029 | If the current line should be outdented, calculate its indentation, | |
1030 | either with the default method or by calling | |
a1506d29 | 1031 | dcl-calc-command-indent-function if it is non-nil. |
43e34a41 RS |
1032 | |
1033 | ||
1034 | Rules for default indentation: | |
1035 | ||
1036 | If it is the first line in the buffer, indent dcl-margin-offset. | |
1037 | ||
a1506d29 | 1038 | Go to the previous command line with a command on it. |
43e34a41 RS |
1039 | Find out how much it is indented (cur-indent). |
1040 | Look at the first word on the line to see if the indentation should be | |
1041 | adjusted. Skip margin-label, continuations and comments while looking for | |
1042 | the first word. Save this buffer position as `last-point'. | |
a1506d29 | 1043 | If the first word after a label is SUBROUTINE, set extra-indent to |
43e34a41 RS |
1044 | dcl-margin-offset. |
1045 | ||
1046 | First word extra-indent | |
1047 | THEN +dcl-basic-offset | |
1048 | ELSE +dcl-basic-offset | |
1049 | block-begin +dcl-basic-offset | |
1050 | ||
1051 | Then return to the current line and look at the first word to see if the | |
1052 | indentation should be adjusted again. Save this buffer position as | |
a1506d29 | 1053 | `this-point'. |
43e34a41 RS |
1054 | |
1055 | First word extra-indent | |
1056 | ELSE -dcl-basic-offset | |
1057 | ENDIF -dcl-basic-offset | |
1058 | block-end -dcl-basic-offset | |
1059 | ||
1060 | ||
1061 | If dcl-calc-command-indent-function is nil or returns nil set | |
1062 | cur-indent to cur-indent+extra-indent. | |
1063 | ||
1064 | If an extra adjustment is necessary and if | |
1065 | dcl-calc-command-indent-function is nil or returns nil set cur-indent | |
a1506d29 | 1066 | to cur-indent+extra-indent. |
43e34a41 RS |
1067 | |
1068 | See also documentation for dcl-calc-command-indent-function. | |
1069 | The indent-type classification could probably be expanded upon. | |
1070 | " | |
1071 | () | |
1072 | (save-excursion | |
1073 | (beginning-of-line) | |
1074 | (let ((is-block nil) | |
1075 | (case-fold-search t) | |
1076 | cur-indent | |
1077 | (extra-indent 0) | |
1078 | indent-type last-point this-point extra-indent2 cur-indent2 | |
1079 | indent-type2) | |
1080 | (if (bobp) ; first line in buffer | |
1081 | (setq cur-indent 0 extra-indent dcl-margin-offset | |
1082 | indent-type 'first-line | |
1083 | this-point (dcl-indentation-point)) | |
1084 | (save-excursion | |
1085 | (let (done) | |
1086 | ;; Find first non-empty command line | |
1087 | (while (not done) | |
1088 | ;; back up one statement and look at the command | |
1089 | (if (dcl-beginning-of-statement) | |
1090 | (cond | |
1091 | ((and dcl-block-begin-regexp ; might be nil | |
1092 | (looking-at (concat "^\\$" dcl-ws-r | |
1093 | dcl-block-begin-regexp))) | |
1094 | (setq done t) (setq is-block t)) | |
1095 | ((and dcl-block-end-regexp ; might be nil | |
1096 | (looking-at (concat "^\\$" dcl-ws-r | |
1097 | dcl-block-end-regexp))) | |
1098 | (setq done t) (setq is-block t)) | |
1099 | ((looking-at dcl-comment-line-regexp) | |
1100 | t) ; comment line, one more loop | |
1101 | ((looking-at "^\\$[ \t]*$") | |
1102 | t) ; empty line, one more loop | |
1103 | ((not (looking-at | |
1104 | (concat "^\\$" dcl-ws-r dcl-label-r dcl-ws-r "$"))) | |
1105 | (setq done t))) ; not a label-only line, exit the loop | |
1106 | ;; We couldn't go further back, so this must have been the | |
1107 | ;; first line. | |
1108 | (setq cur-indent dcl-margin-offset | |
a1506d29 | 1109 | last-point (dcl-indentation-point)) |
43e34a41 RS |
1110 | (setq done t))) |
1111 | ;; Examine the line to get current indentation and possibly a | |
1112 | ;; reason to indent. | |
1113 | (cond | |
1114 | (cur-indent) | |
1115 | ((looking-at (concat "^\\$[ \t]*" dcl-label-r dcl-ws-r | |
1116 | "\\(subroutine\\b\\)")) | |
1117 | (setq cur-indent dcl-margin-offset | |
1118 | last-point (1+ (match-beginning 1)))) | |
1119 | (t | |
1120 | ;; Find out how much this line is indented. | |
1121 | ;; Look at comment, continuation character, command but not label | |
1122 | ;; unless it's a block. | |
1123 | (if is-block | |
1124 | (re-search-forward "^\\$[ \t]*") | |
1125 | (re-search-forward (concat "^\\$[ \t]*\\(" dcl-label-r | |
1126 | "\\)*[ \t]*"))) | |
1127 | (setq cur-indent (current-column)) | |
1128 | ;; Look for a reason to indent: Find first word on this line | |
1129 | (re-search-forward dcl-ws-r) | |
1130 | (setq last-point (point)) | |
1131 | (cond | |
1132 | ((looking-at "\\bthen\\b") | |
1133 | (setq extra-indent dcl-basic-offset indent-type 'indent)) | |
1134 | ((looking-at "\\belse\\b") | |
1135 | (setq extra-indent dcl-basic-offset indent-type 'indent)) | |
1136 | ((and dcl-block-begin-regexp ; might be nil | |
1137 | (looking-at dcl-block-begin-regexp)) | |
1138 | (setq extra-indent dcl-basic-offset indent-type 'indent)) | |
1139 | )))))) | |
1140 | (setq extra-indent2 0) | |
1141 | ;; We're back at the beginning of the original line. | |
1142 | ;; Look for a reason to outdent: Find first word on this line | |
1143 | (re-search-forward (concat "^\\$" dcl-ws-r)) | |
1144 | (setq this-point (dcl-indentation-point)) | |
1145 | (cond | |
1146 | ((looking-at "\\belse\\b") | |
1147 | (setq extra-indent2 (- dcl-basic-offset) indent-type2 'outdent)) | |
1148 | ((looking-at "\\bendif\\b") | |
1149 | (setq extra-indent2 (- dcl-basic-offset) indent-type2 'outdent)) | |
1150 | ((and dcl-block-end-regexp ; might be nil | |
1151 | (looking-at dcl-block-end-regexp)) | |
1152 | (setq extra-indent2 (- dcl-basic-offset) indent-type2 'outdent)) | |
1153 | ((looking-at (concat dcl-label-r dcl-ws-r "\\(subroutine\\b\\)")) | |
1154 | (setq cur-indent2 0 extra-indent2 dcl-margin-offset | |
1155 | indent-type2 'first-line | |
1156 | this-point (1+ (match-beginning 1))))) | |
1157 | ;; Calculate indent | |
1158 | (setq cur-indent | |
1159 | (or (and dcl-calc-command-indent-function | |
1160 | (funcall dcl-calc-command-indent-function | |
1161 | indent-type cur-indent extra-indent | |
1162 | last-point this-point)) | |
1163 | (+ cur-indent extra-indent))) | |
1164 | ;; Calculate outdent | |
1165 | (if indent-type2 | |
1166 | (progn | |
1167 | (or cur-indent2 (setq cur-indent2 cur-indent)) | |
1168 | (setq cur-indent | |
1169 | (or (and dcl-calc-command-indent-function | |
1170 | (funcall dcl-calc-command-indent-function | |
1171 | indent-type2 cur-indent2 extra-indent2 | |
1172 | last-point this-point)) | |
1173 | (+ cur-indent2 extra-indent2))))) | |
1174 | cur-indent | |
1175 | ))) | |
1176 | ||
1177 | ||
1178 | ;;;--------------------------------------------------------------------------- | |
1179 | (defun dcl-calc-cont-indent-relative (cur-indent extra-indent) | |
1180 | "Indent continuation lines to align with words on previous line. | |
1181 | ||
1182 | Indent continuation lines to a position relative to preceding | |
1183 | significant command line elements. | |
1184 | ||
1185 | Set `dcl-calc-cont-indent-function' to this function to customize | |
1186 | indentation of continuation lines. | |
1187 | ||
1188 | Indented lines will align with either: | |
1189 | ||
1190 | * the second word on the command line | |
1191 | $ set default - | |
1192 | [-] | |
674e010d | 1193 | * the word after an assignment |
43e34a41 RS |
1194 | $ a = b + - |
1195 | d | |
1196 | * the third word if it's a qualifier | |
1197 | $ set terminal/width=80 - | |
1198 | /page=24 | |
1199 | * the innermost nonclosed parenthesis | |
1200 | $ if ((a.eq.b .and. - | |
1201 | d.eq.c .or. f$function(xxxx, - | |
1202 | yyy))) | |
1203 | " | |
1204 | (let ((case-fold-search t) | |
a1506d29 | 1205 | indent) |
43e34a41 RS |
1206 | (save-excursion |
1207 | (dcl-beginning-of-statement) | |
1208 | (let ((end (save-excursion (forward-line 1) (point)))) | |
1209 | ;; Move over blanks and label | |
1210 | (if (re-search-forward (concat "^\\$[ \t]*\\(" dcl-label-r | |
1211 | "\\)*[ \t]*") end t) | |
1212 | (progn | |
1213 | ;; Move over the first word (might be `@filespec') | |
1214 | (if (> (skip-chars-forward "@:[]<>$\\-a-zA-Z0-9_.;" end) 0) | |
1215 | (let (was-assignment) | |
1216 | (skip-chars-forward " \t" end) | |
1217 | ;; skip over assignment if there is one | |
1218 | (if (looking-at ":?==?") | |
1219 | (progn | |
1220 | (setq was-assignment t) | |
1221 | (skip-chars-forward " \t:=" end))) | |
1222 | ;; This could be the position to indent to | |
1223 | (setq indent (current-column)) | |
a1506d29 | 1224 | |
43e34a41 RS |
1225 | ;; Move to the next word unless we have seen an |
1226 | ;; assignment. If it starts with `/' it's a | |
1227 | ;; qualifier and we will indent to that position | |
1228 | (if (and (not was-assignment) | |
1229 | (> (skip-chars-forward "a-zA-Z0-9_" end) 0)) | |
1230 | (progn | |
1231 | (skip-chars-forward " \t" end) | |
1232 | (if (= (char-after (point)) ?/) | |
1233 | (setq indent (current-column))))) | |
1234 | )))))) | |
1235 | ;; Now check if there are any parenthesis to adjust to. | |
1236 | ;; If there is, we will indent to the position after the last non-closed | |
1237 | ;; opening parenthesis. | |
1238 | (save-excursion | |
1239 | (beginning-of-line) | |
1240 | (let* ((start (save-excursion (dcl-beginning-of-statement) (point))) | |
1241 | (parse-sexp-ignore-comments t) ; for parse-partial | |
1242 | (par-pos (nth 1 (parse-partial-sexp start (point))))) | |
1243 | (if par-pos ; is nil if no parenthesis was found | |
1244 | (setq indent (save-excursion | |
1245 | (goto-char par-pos) | |
1246 | (1+ (current-column))))))) | |
1247 | indent)) | |
1248 | ||
1249 | ||
1250 | ;;;--------------------------------------------------------------------------- | |
1251 | (defun dcl-calc-continuation-indent () | |
1252 | "Calculate how much the current line shall be indented. | |
1253 | The line is known to be a continuation line. | |
1254 | ||
1255 | Go to the previous command line. | |
1256 | Find out how much it is indented." | |
1257 | ;; This was copied without much thought from dcl-calc-command-indent, so | |
1258 | ;; it's a bit clumsy. | |
1259 | () | |
1260 | (save-excursion | |
1261 | (beginning-of-line) | |
1262 | (if (bobp) | |
1263 | ;; Huh? a continuation line first in the buffer?? | |
1264 | dcl-margin-offset | |
1265 | (let ((is-block nil) | |
1266 | (indent)) | |
1267 | (save-excursion | |
1268 | ;; Find first non-empty command line | |
1269 | (let ((done)) | |
1270 | (while (not done) | |
1271 | (if (dcl-beginning-of-statement) | |
1272 | (cond | |
1273 | ((and dcl-block-begin-regexp | |
1274 | (looking-at (concat "^\\$" dcl-ws-r | |
1275 | dcl-block-begin-regexp))) | |
1276 | (setq done t) (setq is-block t)) | |
1277 | ((and dcl-block-end-regexp | |
1278 | (looking-at (concat "^\\$" dcl-ws-r | |
1279 | dcl-block-end-regexp))) | |
1280 | (setq done t) (setq is-block t)) | |
1281 | ((looking-at dcl-comment-line-regexp) | |
1282 | t) | |
1283 | ((looking-at "^\\$[ \t]*$") | |
1284 | t) | |
1285 | ((not (looking-at | |
1286 | (concat "^\\$" dcl-ws-r dcl-label-r dcl-ws-r "$"))) | |
1287 | (setq done t))) | |
1288 | ;; This must have been the first line. | |
1289 | (setq indent dcl-margin-offset) | |
1290 | (setq done t))) | |
1291 | (if indent | |
1292 | () | |
1293 | ;; Find out how much this line is indented. | |
1294 | ;; Look at comment, continuation character, command but not label | |
1295 | ;; unless it's a block. | |
1296 | (if is-block | |
1297 | (re-search-forward "^\\$[ \t]*") | |
1298 | (re-search-forward (concat "^\\$[ \t]*\\(" dcl-label-r | |
1299 | "\\)*[ \t]*"))) | |
1300 | (setq indent (current-column)) | |
1301 | ))) | |
1302 | ;; We're back at the beginning of the original line. | |
1303 | (or (and dcl-calc-cont-indent-function | |
1304 | (funcall dcl-calc-cont-indent-function indent | |
1305 | dcl-continuation-offset)) | |
1306 | (+ indent dcl-continuation-offset)) | |
1307 | )))) | |
1308 | ||
1309 | ||
1310 | ;;;--------------------------------------------------------------------------- | |
1311 | (defun dcl-indent-command-line () | |
1312 | "Indent a line known to be a command line." | |
1313 | (let ((indent (dcl-calc-command-indent)) | |
1314 | (pos (- (point-max) (point)))) | |
1315 | (save-excursion | |
1316 | (beginning-of-line) | |
1317 | (re-search-forward "^\\$[ \t]*") | |
1318 | ;; Indent any margin-label if the offset is set | |
1319 | ;; (Don't look at block labels) | |
1320 | (if (and dcl-margin-label-offset | |
1321 | (looking-at dcl-label-r) | |
1322 | (not (and dcl-block-begin-regexp | |
1323 | (looking-at dcl-block-begin-regexp))) | |
1324 | (not (and dcl-block-end-regexp | |
1325 | (looking-at dcl-block-end-regexp)))) | |
1326 | (progn | |
1327 | (dcl-indent-to dcl-margin-label-offset) | |
1328 | (re-search-forward dcl-label-r))) | |
1329 | (dcl-indent-to indent 1) | |
1330 | ) | |
a1506d29 | 1331 | ;; |
43e34a41 RS |
1332 | (if (> (- (point-max) pos) (point)) |
1333 | (goto-char (- (point-max) pos))) | |
1334 | )) | |
1335 | ||
1336 | ||
1337 | ;;;------------------------------------------------------------------------- | |
1338 | (defun dcl-indent-continuation-line () | |
1339 | "Indent a line known to be a continuation line. | |
1340 | ||
1341 | Notice that no special treatment is made for labels. They have to be | |
1342 | on the first part on a command line to be taken into consideration." | |
1343 | (let ((indent (dcl-calc-continuation-indent))) | |
1344 | (save-excursion | |
1345 | (beginning-of-line) | |
1346 | (re-search-forward "^[ \t]*") | |
1347 | (dcl-indent-to indent)) | |
1348 | (skip-chars-forward " \t"))) | |
1349 | ||
1350 | ||
1351 | ;;;--------------------------------------------------------------------------- | |
1352 | (defun dcl-delete-chars (chars) | |
1353 | "Delete all characters in the set CHARS around point." | |
1354 | (skip-chars-backward chars) | |
1355 | (delete-region (point) (progn (skip-chars-forward chars) (point)))) | |
1356 | ||
1357 | ||
1358 | ;;;--------------------------------------------------------------------------- | |
1359 | (defun dcl-indent-line () | |
1360 | "The DCL version of `indent-line-function'. | |
1361 | Adjusts indentation on the current line. Data lines are not indented." | |
1362 | (let ((type (dcl-get-line-type))) | |
1363 | (cond | |
1364 | ((equal type '$) | |
1365 | (dcl-indent-command-line)) | |
1366 | ((equal type '\?) | |
1367 | (message "Unknown line type!")) | |
1368 | ((equal type '$!)) | |
1369 | ((equal type 'data)) | |
1370 | ((equal type 'empty-data)) | |
1371 | ((equal type '-) | |
1372 | (dcl-indent-continuation-line)) | |
1373 | ((equal type 'empty-$) | |
1374 | (insert "$" ) | |
1375 | (dcl-indent-command-line)) | |
1376 | (t | |
1377 | (message "dcl-indent-line: unknown type")) | |
1378 | ))) | |
a1506d29 | 1379 | |
43e34a41 RS |
1380 | |
1381 | ;;;------------------------------------------------------------------------- | |
1382 | (defun dcl-indent-command () | |
1383 | "Indents the complete command line that point is on. | |
1384 | This includes continuation lines." | |
1385 | (interactive "*") | |
1386 | (let ((type (dcl-get-line-type))) | |
1387 | (if (or (equal type '$) | |
1388 | (equal type '-) | |
1389 | (equal type 'empty-$)) | |
1390 | (save-excursion | |
1391 | (indent-region (progn (or (looking-at "^\\$") | |
1392 | (dcl-beginning-of-statement)) | |
1393 | (point)) | |
1394 | (progn (dcl-end-of-statement) (point)) | |
1395 | nil))))) | |
1396 | ||
1397 | ||
1398 | ;;;------------------------------------------------------------------------- | |
1399 | (defun dcl-tab () | |
1400 | "Insert tab in data lines or indent code. | |
1401 | If `dcl-tab-always-indent' is t, code lines are always indented. | |
1402 | If nil, indent the current line only if point is at the left margin or in | |
1403 | the lines indentation; otherwise insert a tab." | |
1404 | (interactive "*") | |
1405 | (let ((type (dcl-get-line-type)) | |
1406 | (start-point (point))) | |
1407 | (cond | |
1408 | ;; Data line : always insert tab | |
a1506d29 | 1409 | ((or (equal type 'data) (equal type 'empty-data)) |
43e34a41 | 1410 | (tab-to-tab-stop)) |
a1506d29 | 1411 | ;; Indent only at start of line |
43e34a41 RS |
1412 | ((not dcl-tab-always-indent) ; nil |
1413 | (let ((search-end-point | |
1414 | (save-excursion | |
1415 | (beginning-of-line) | |
1416 | (re-search-forward "^\\$?[ \t]*" start-point t)))) | |
1417 | (if (or (bolp) | |
1418 | (and search-end-point | |
1419 | (>= search-end-point start-point))) | |
1420 | (dcl-indent-line) | |
1421 | (tab-to-tab-stop)))) | |
1422 | ;; Always indent | |
1423 | ((eq dcl-tab-always-indent t) ; t | |
1424 | (dcl-indent-line)) | |
1425 | ))) | |
1426 | ||
1427 | ||
1428 | ;;;------------------------------------------------------------------------- | |
1429 | (defun dcl-electric-character (arg) | |
1430 | "Inserts a character and indents if necessary. | |
a1506d29 | 1431 | Insert a character if the user gave a numeric argument or the flag |
43e34a41 RS |
1432 | `dcl-electric-characters' is not set. If an argument was given, |
1433 | insert that many characters. | |
1434 | ||
1435 | The line is only reindented if the word just typed matches any of the | |
1436 | regexps in `dcl-electric-reindent-regexps'." | |
1437 | (interactive "*P") | |
1438 | (if (or arg (not dcl-electric-characters)) | |
1439 | (if arg | |
1440 | (self-insert-command (prefix-numeric-value arg)) | |
1441 | (self-insert-command 1)) | |
1442 | ;; Insert the character and indent | |
1443 | (self-insert-command 1) | |
1444 | (let ((case-fold-search t)) | |
1445 | ;; There must be a better way than (memq t ...). | |
a1506d29 | 1446 | ;; (apply 'or ...) didn't work |
43e34a41 RS |
1447 | (if (memq t (mapcar 'dcl-was-looking-at dcl-electric-reindent-regexps)) |
1448 | (dcl-indent-line))))) | |
1449 | ||
1450 | ||
1451 | ;;;------------------------------------------------------------------------- | |
1452 | (defun dcl-indent-to (col &optional minimum) | |
1453 | "Like indent-to, but only indents if indentation would change" | |
1454 | (interactive) | |
1455 | (let (cur-indent collapsed indent) | |
1456 | (save-excursion | |
1457 | (skip-chars-forward " \t") | |
1458 | (setq cur-indent (current-column)) | |
1459 | (skip-chars-backward " \t") | |
1460 | (setq collapsed (current-column))) | |
1461 | (setq indent (max col (+ collapsed (or minimum 0)))) | |
1462 | (if (/= indent cur-indent) | |
1463 | (progn | |
1464 | (dcl-delete-chars " \t") | |
1465 | (indent-to col minimum))))) | |
a1506d29 | 1466 | |
43e34a41 RS |
1467 | |
1468 | ;;;------------------------------------------------------------------------- | |
1469 | (defun dcl-split-line () | |
1470 | "Break line at point and insert text to keep the syntax valid. | |
1471 | ||
1472 | Inserts continuation marks and splits character strings." | |
1473 | ;; Still don't know what to do with comments at the end of a command line. | |
1474 | (interactive "*") | |
1475 | (let (done | |
1476 | (type (dcl-get-line-type))) | |
1477 | (cond | |
1478 | ((or (equal type '$) (equal type '-)) | |
1479 | (let ((info (parse-partial-sexp | |
1480 | (save-excursion (dcl-beginning-of-statement) (point)) | |
1481 | (point)))) | |
1482 | ;; handle some special cases | |
1483 | (cond | |
1484 | ((nth 3 info) ; in text constant | |
1485 | (insert "\" + -\n\"") | |
1486 | (indent-according-to-mode) | |
1487 | (setq done t)) | |
1488 | ((not (nth 4 info)) ; not in comment | |
1489 | (cond | |
1490 | ((and (not (eolp)) | |
1491 | (= (char-after (point)) ?\") | |
1492 | (= (char-after (1- (point))) ?\")) | |
1493 | (progn ; a " "" " situation | |
1494 | (forward-char -1) | |
1495 | (insert "\" + -\n\"") | |
1496 | (forward-char 1) | |
1497 | (indent-according-to-mode) | |
1498 | (setq done t))) | |
1499 | ((and (dcl-was-looking-at "[ \t]*-[ \t]*") ; after cont mark | |
1500 | (looking-at "[ \t]*\\(!.*\\)?$")) | |
1501 | ;; Do default below. This might considered wrong if we're | |
1502 | ;; after a subtraction: $ x = 3 - <M-LFD> | |
1503 | ) | |
1504 | (t | |
1505 | (delete-horizontal-space) | |
1506 | (insert " -") | |
1507 | (insert "\n") (indent-according-to-mode) | |
1508 | (setq done t)))) | |
1509 | )))) | |
1510 | ;; use the normal function for other cases | |
1511 | (if (not done) ; normal M-LFD action | |
1512 | (indent-new-comment-line)))) | |
1513 | ||
a1506d29 | 1514 | |
43e34a41 RS |
1515 | ;;;------------------------------------------------------------------------- |
1516 | (defun dcl-delete-indentation (&optional arg) | |
1517 | "Join this line to previous like delete-indentation. | |
1518 | Also remove the continuation mark if easily detected." | |
1519 | (interactive "*P") | |
1520 | (delete-indentation arg) | |
1521 | (let ((type (dcl-get-line-type))) | |
1522 | (if (and (or (equal type '$) | |
1523 | (equal type '-) | |
1524 | (equal type 'empty-$)) | |
1525 | (not (bobp)) | |
1526 | (= (char-after (1- (point))) ?-)) | |
1527 | (progn | |
1528 | (delete-backward-char 1) | |
1529 | (fixup-whitespace))))) | |
1530 | ||
1531 | ||
1532 | ;;; *** Set options ********************************************************* | |
1533 | ||
1534 | ||
1535 | ;;;------------------------------------------------------------------------- | |
1536 | (defun dcl-option-value-basic (option-assoc) | |
1537 | "Guess a value for basic-offset." | |
1538 | (save-excursion | |
1539 | (dcl-beginning-of-command) | |
1540 | (let* (;; current lines indentation | |
1541 | (this-indent (save-excursion | |
1542 | (dcl-back-to-indentation) | |
1543 | (current-column))) | |
1544 | ;; previous lines indentation | |
1545 | (prev-indent (save-excursion | |
1546 | (if (dcl-backward-command) | |
1547 | (progn | |
1548 | (dcl-back-to-indentation) | |
1549 | (current-column))))) | |
1550 | (next-indent (save-excursion | |
1551 | (dcl-end-of-command) | |
1552 | (if (dcl-forward-command) | |
1553 | (progn | |
1554 | (dcl-beginning-of-command) | |
1555 | (dcl-back-to-indentation) | |
1556 | (current-column))))) | |
1557 | (diff (if prev-indent | |
1558 | (abs (- this-indent prev-indent))))) | |
1559 | (cond | |
1560 | ((and diff | |
1561 | (/= diff 0)) | |
1562 | diff) | |
1563 | ((and next-indent | |
1564 | (/= (- this-indent next-indent) 0)) | |
1565 | (abs (- this-indent next-indent))) | |
1566 | (t | |
1567 | dcl-basic-offset))))) | |
1568 | ||
1569 | ||
1570 | ;;;------------------------------------------------------------------------- | |
1571 | (defun dcl-option-value-offset (option-assoc) | |
1572 | "Guess a value for an offset. | |
1573 | Find the column of the first non-blank character on the line. | |
e190af9a | 1574 | Returns the column offset." |
43e34a41 RS |
1575 | (save-excursion |
1576 | (beginning-of-line) | |
1577 | (re-search-forward "^$[ \t]*" nil t) | |
1578 | (current-column))) | |
1579 | ||
1580 | ||
1581 | ;;;------------------------------------------------------------------------- | |
1582 | (defun dcl-option-value-margin-offset (option-assoc) | |
1583 | "Guess a value for margin offset. | |
1584 | Find the column of the first non-blank character on the line, not | |
a1506d29 | 1585 | counting labels. |
43e34a41 RS |
1586 | Returns a number as a string." |
1587 | (save-excursion | |
1588 | (beginning-of-line) | |
1589 | (dcl-back-to-indentation) | |
1590 | (current-column))) | |
1591 | ||
1592 | ||
1593 | ;;;------------------------------------------------------------------------- | |
1594 | (defun dcl-option-value-comment-line (option-assoc) | |
1595 | "Guess a value for `dcl-comment-line-regexp'. | |
1596 | Must return a string." | |
1597 | ;; Should we set comment-start and comment-start-skip as well? | |
1598 | ;; If someone wants `$!&' as a comment line, C-M-j won't work well if | |
1599 | ;; they aren't set. | |
1600 | ;; This must be done after the user has given the real value in | |
1601 | ;; dcl-set-option. | |
1602 | (format | |
1603 | "%S" | |
1604 | (save-excursion | |
1605 | (beginning-of-line) | |
1606 | ;; We could search for "^\\$.*!+[^ \t]*", but, as noted above, we | |
1607 | ;; can't handle that case very good, so there is no point in | |
1608 | ;; suggesting it. | |
1609 | (if (looking-at "^\\$[^!\n]*!") | |
1610 | (let ((regexp (buffer-substring (match-beginning 0) (match-end 0)))) | |
1611 | (concat "^" (regexp-quote regexp))) | |
1612 | dcl-comment-line-regexp)))) | |
a1506d29 | 1613 | |
43e34a41 RS |
1614 | |
1615 | ;;;------------------------------------------------------------------------- | |
1616 | (defun dcl-guess-option-value (option) | |
1617 | "Guess what value the user would like to give the symbol option." | |
1618 | (let* ((option-assoc (assoc option dcl-option-alist)) | |
1619 | (option (car option-assoc)) | |
1620 | (action (car (cdr option-assoc))) | |
1621 | (value (cond | |
1622 | ((fboundp action) | |
1623 | (funcall action option-assoc)) | |
1624 | ((eq action 'toggle) | |
1625 | (not (eval option))) | |
1626 | ((eq action 'curval) | |
1627 | (cond ((or (stringp (symbol-value option)) | |
1628 | (numberp (symbol-value option))) | |
1629 | (format "%S" (symbol-value option))) | |
1630 | (t | |
1631 | (format "'%S" (symbol-value option)))))))) | |
1632 | ;; format the value as a string if not already done | |
1633 | (if (stringp value) | |
1634 | value | |
1635 | (format "%S" value)))) | |
1636 | ||
1637 | ||
1638 | ;;;------------------------------------------------------------------------- | |
1639 | (defun dcl-guess-option () | |
1640 | "Guess what option the user wants to set by looking around in the code. | |
1641 | Returns the name of the option variable as a string." | |
1642 | (let ((case-fold-search t)) | |
1643 | (cond | |
1644 | ;; Continued line | |
1645 | ((eq (dcl-get-line-type) '-) | |
1646 | "dcl-calc-cont-indent-function") | |
1647 | ;; Comment line | |
1648 | ((save-excursion | |
1649 | (beginning-of-line) | |
1650 | (looking-at "^\\$[ \t]*!")) | |
1651 | "dcl-comment-line-regexp") | |
1652 | ;; Margin offset: subroutine statement or first line in buffer | |
1653 | ;; Test this before label indentation to detect a subroutine | |
1654 | ((save-excursion | |
1655 | (beginning-of-line) | |
1656 | (or (looking-at (concat "^\\$[ \t]*" dcl-label-r dcl-ws-r | |
1657 | "subroutine")) | |
1658 | (save-excursion | |
1659 | (not (dcl-backward-command t))))) | |
1660 | "dcl-margin-offset") | |
1661 | ;; Margin offset: on command line after subroutine statement | |
1662 | ((save-excursion | |
1663 | (beginning-of-line) | |
1664 | (and (eq (dcl-get-line-type) '$) | |
1665 | (dcl-backward-command) | |
1666 | (looking-at (concat "^\\$[ \t]*" dcl-label-r dcl-ws-r | |
1667 | "subroutine")))) | |
1668 | "dcl-margin-offset") | |
1669 | ;; Label indentation | |
1670 | ((save-excursion | |
1671 | (beginning-of-line) | |
1672 | (and (looking-at (concat "^\\$[ \t]*" dcl-label-r)) | |
1673 | (not (and dcl-block-begin-regexp | |
1674 | (looking-at (concat "^\\$[ \t]*" | |
1675 | dcl-block-begin-regexp)))) | |
1676 | (not (and dcl-block-end-regexp | |
1677 | (looking-at (concat "^\\$[ \t]*" | |
1678 | dcl-block-end-regexp)))))) | |
1679 | "dcl-margin-label-offset") | |
1680 | ;; Basic offset | |
1681 | ((and (eq (dcl-get-line-type) '$) ; beginning of command | |
1682 | (save-excursion | |
1683 | (beginning-of-line) | |
1684 | (let* ((this-indent (save-excursion | |
1685 | (dcl-back-to-indentation) | |
1686 | (current-column))) | |
1687 | (prev-indent (save-excursion | |
1688 | (if (dcl-backward-command) | |
1689 | (progn | |
1690 | (dcl-back-to-indentation) | |
1691 | (current-column))))) | |
1692 | (next-indent (save-excursion | |
1693 | (dcl-end-of-command) | |
1694 | (if (dcl-forward-command) | |
1695 | (progn | |
1696 | (dcl-beginning-of-command) | |
1697 | (dcl-back-to-indentation) | |
1698 | (current-column)))))) | |
1699 | (or (and prev-indent ; last cmd is indented differently | |
1700 | (/= (- this-indent prev-indent) 0)) | |
1701 | (and next-indent | |
1702 | (/= (- this-indent next-indent) 0)))))) | |
1703 | "dcl-basic-offset") | |
a1506d29 | 1704 | ;; No more guesses. |
43e34a41 RS |
1705 | (t |
1706 | "")))) | |
1707 | ||
1708 | ||
1709 | ;;;------------------------------------------------------------------------- | |
1710 | (defun dcl-set-option (option-sym option-value) | |
1711 | "Set a value for one of the dcl customization variables. | |
1712 | The function tries to guess which variable should be set and to what value. | |
1713 | All variable names are available as completions and in the history list." | |
1714 | (interactive | |
1715 | (let* ((option-sym | |
1716 | (intern (completing-read | |
1717 | "Set DCL option: " ; prompt | |
1718 | (mapcar (function ; alist of valid values | |
1719 | (lambda (option-assoc) | |
1720 | (cons (format "%s" (car option-assoc)) nil))) | |
1721 | dcl-option-alist) | |
1722 | nil ; no predicate | |
1723 | t ; only value from the list OK | |
1724 | (dcl-guess-option) ; initial (default) value | |
1725 | 'dcl-option-history))) ; history list | |
1726 | (option-value | |
1727 | (eval-minibuffer | |
1728 | (format "Set DCL option %s to: " option-sym) | |
1729 | (dcl-guess-option-value option-sym)))) | |
1730 | (list option-sym option-value))) | |
1731 | ;; Should make a sanity check on the symbol/value pair. | |
1732 | ;; `set' instead of `setq' because we want option-sym to be evaluated. | |
1733 | (set option-sym option-value)) | |
1734 | ||
1735 | ||
1736 | ;;; *** Save options ******************************************************** | |
1737 | ||
1738 | ||
1739 | ;;;------------------------------------------------------------------------- | |
1740 | (defun dcl-save-local-variable (var &optional def-prefix def-suffix) | |
1741 | "Save a variable in a `Local Variables' list. | |
a1506d29 JB |
1742 | Set or update the value of VAR in the current buffers |
1743 | `Local Variables:' list." | |
43e34a41 RS |
1744 | ;; Look for "Local variables:" line in last page. |
1745 | (save-excursion | |
1746 | (goto-char (point-max)) | |
1747 | (search-backward "\n\^L" (max (- (point-max) 3000) (point-min)) 'move) | |
1748 | (if (let ((case-fold-search t)) | |
1749 | (search-forward "Local Variables:" nil t)) | |
1750 | (let ((continue t) | |
1751 | prefix prefixlen suffix beg | |
1752 | prefix-string suffix-string) | |
1753 | ;; The prefix is what comes before "local variables:" in its line. | |
1754 | ;; The suffix is what comes after "local variables:" in its line. | |
1755 | (skip-chars-forward " \t") | |
1756 | (or (eolp) | |
1757 | (setq suffix-string (buffer-substring (point) | |
1758 | (progn (end-of-line) (point))))) | |
1759 | (goto-char (match-beginning 0)) | |
1760 | (or (bolp) | |
1761 | (setq prefix-string | |
1762 | (buffer-substring (point) | |
1763 | (progn (beginning-of-line) (point))))) | |
1764 | ||
1765 | (if prefix-string (setq prefixlen (length prefix-string) | |
1766 | prefix (regexp-quote prefix-string))) | |
1767 | (if suffix-string (setq suffix (concat (regexp-quote suffix-string) | |
1768 | "$"))) | |
1769 | (while continue | |
1770 | ;; Look at next local variable spec. | |
1771 | (if selective-display (re-search-forward "[\n\C-m]") | |
1772 | (forward-line 1)) | |
1773 | ;; Skip the prefix, if any. | |
1774 | (if prefix | |
1775 | (if (looking-at prefix) | |
1776 | (forward-char prefixlen) | |
1777 | (error "Local variables entry is missing the prefix"))) | |
1778 | ;; Find the variable name; strip whitespace. | |
1779 | (skip-chars-forward " \t") | |
1780 | (setq beg (point)) | |
1781 | (skip-chars-forward "^:\n") | |
1782 | (if (eolp) (error "Missing colon in local variables entry")) | |
1783 | (skip-chars-backward " \t") | |
1784 | (let* ((str (buffer-substring beg (point))) | |
1785 | (found-var (read str)) | |
1786 | val) | |
1787 | ;; Setting variable named "end" means end of list. | |
1788 | (if (string-equal (downcase str) "end") | |
1789 | (progn | |
1790 | ;; Not found. Insert a new entry before this line | |
1791 | (setq continue nil) | |
1792 | (beginning-of-line) | |
a1506d29 | 1793 | (insert (concat prefix-string (symbol-name var) ": " |
43e34a41 RS |
1794 | (prin1-to-string (eval var)) " " |
1795 | suffix-string "\n"))) | |
1796 | ;; Is it the variable we are looking for? | |
1797 | (if (eq var found-var) | |
1798 | (progn | |
1799 | ;; Found it: delete the variable value and insert the | |
1800 | ;; new value. | |
1801 | (setq continue nil) | |
1802 | (skip-chars-forward "^:") | |
1803 | (forward-char 1) | |
1804 | (delete-region (point) (progn (read (current-buffer)) | |
1805 | (point))) | |
1806 | (insert " ") | |
1807 | (prin1 (eval var) (current-buffer)) | |
1808 | (skip-chars-backward "\n") | |
1809 | (skip-chars-forward " \t") | |
1810 | (or (if suffix (looking-at suffix) (eolp)) | |
1811 | (error | |
1812 | "Local variables entry is terminated incorrectly"))) | |
1813 | (end-of-line)))))) | |
1814 | ;; Did not find "Local variables:" | |
1815 | (goto-char (point-max)) | |
1816 | (if (not (bolp)) | |
1817 | (insert "\n")) | |
1818 | ;; If def- parameter not set, use comment- if set. In that case, make | |
1819 | ;; sure there is a space in a suitable position | |
1820 | (let ((def-prefix | |
1821 | (cond | |
1822 | (def-prefix | |
1823 | def-prefix) | |
1824 | (comment-start | |
1825 | (if (or (equal comment-start "") | |
1826 | (string-match "[ \t]$" comment-start)) | |
1827 | comment-start | |
1828 | (concat comment-start " "))))) | |
1829 | (def-suffix | |
1830 | (cond | |
1831 | (def-suffix | |
1832 | def-suffix) | |
1833 | (comment-end | |
1834 | (if (or (equal comment-end "") | |
1835 | (string-match "^[ \t]" comment-end)) | |
1836 | comment-end | |
1837 | (concat " " comment-end)))))) | |
1838 | (insert (concat def-prefix "Local variables:" def-suffix "\n")) | |
a1506d29 | 1839 | (insert (concat def-prefix (symbol-name var) ": " |
43e34a41 RS |
1840 | (prin1-to-string (eval var)) def-suffix "\n")) |
1841 | (insert (concat def-prefix "end:" def-suffix))) | |
1842 | ))) | |
1843 | ||
1844 | ||
1845 | ;;;------------------------------------------------------------------------- | |
1846 | (defun dcl-save-all-options () | |
1847 | "Save all dcl-mode options for this buffer. | |
1848 | Saves or updates all dcl-mode related options in a `Local Variables:' | |
1849 | section at the end of the current buffer." | |
1850 | (interactive "*") | |
1851 | (mapcar (lambda (option-assoc) | |
1852 | (let* ((option (car option-assoc))) | |
1853 | (dcl-save-local-variable option "$! "))) | |
1854 | dcl-option-alist)) | |
1855 | ||
1856 | ||
1857 | ;;;------------------------------------------------------------------------- | |
1858 | (defun dcl-save-nondefault-options () | |
1859 | "Save changed DCL mode options for this buffer. | |
1860 | Saves or updates all DCL mode related options that don't have their | |
1861 | default values in a `Local Variables:' section at the end of the | |
1862 | current buffer. | |
1863 | ||
1864 | No entries are removed from the `Local Variables:' section. This means | |
1865 | that if a variable is given a non-default value in the section and | |
1866 | later is manually reset to its default value, the variable's entry will | |
1867 | still be present in the `Local Variables:' section with its old value." | |
1868 | (interactive "*") | |
1869 | (mapcar (lambda (option-assoc) | |
1870 | (let* ((option (car option-assoc)) | |
1871 | (option-name (symbol-name option))) | |
1872 | (if (and (string-equal "dcl-" | |
1873 | (substring option-name 0 4)) | |
1874 | (not (equal (default-value option) (eval option)))) | |
1875 | (dcl-save-local-variable option "$! ")))) | |
1876 | dcl-option-alist)) | |
1877 | ||
1878 | ||
1879 | ;;;------------------------------------------------------------------------- | |
1880 | (defun dcl-save-option (option) | |
1881 | "Save a DCL mode option for this buffer. | |
1882 | Saves or updates an option in a `Local Variables:' | |
1883 | section at the end of the current buffer." | |
1884 | (interactive | |
1885 | (let ((option (intern (completing-read "Option: " obarray)))) | |
1886 | (list option))) | |
1887 | (dcl-save-local-variable option)) | |
1888 | ||
1889 | ||
1890 | ;;;------------------------------------------------------------------------- | |
1891 | (defun dcl-save-mode () | |
1892 | "Save the current mode for this buffer. | |
1893 | Save the current mode in a `Local Variables:' | |
1894 | section at the end of the current buffer." | |
1895 | (interactive) | |
1896 | (let ((mode (prin1-to-string major-mode))) | |
1897 | (if (string-match "-mode$" mode) | |
1898 | (let ((mode (intern (substring mode 0 (match-beginning 0))))) | |
1899 | (dcl-save-option 'mode)) | |
1900 | (message "Strange mode: %s" mode)))) | |
1901 | ||
1902 | ||
1903 | ;;; *** Templates *********************************************************** | |
1904 | ;; tempo seems to be the only suitable package among those included in | |
1905 | ;; standard Emacs. I would have liked something closer to the functionality | |
1906 | ;; of LSE templates... | |
1907 | ||
1908 | ||
1909 | (require 'tempo) | |
1910 | (defvar dcl-tempo-tags nil | |
1911 | "Tempo tags for DCL mode.") | |
a1506d29 | 1912 | |
43e34a41 | 1913 | (tempo-define-template "dcl-f$context" |
a1506d29 | 1914 | '("f$context" dcl-tempo-left-paren |
43e34a41 RS |
1915 | (p "context-type: ") dcl-tempo-comma |
1916 | (p "context-symbol: ") dcl-tempo-comma | |
1917 | (p "selection-item: ") dcl-tempo-comma | |
1918 | (p "selection-value: ") dcl-tempo-comma | |
1919 | (p "value-qualifier: ") dcl-tempo-right-paren) | |
1920 | "f$context" "" 'dcl-tempo-tags) | |
1921 | ||
1922 | (tempo-define-template "dcl-f$csid" | |
a1506d29 | 1923 | '("f$csid" dcl-tempo-left-paren |
43e34a41 RS |
1924 | (p "context-symbol: ") dcl-tempo-right-paren) |
1925 | "f$csid" "" 'dcl-tempo-tags) | |
1926 | ||
1927 | (tempo-define-template "dcl-f$cvsi" | |
a1506d29 | 1928 | '("f$cvsi" dcl-tempo-left-paren |
43e34a41 RS |
1929 | (p "start-bit: ") dcl-tempo-comma |
1930 | (p "number-of-bits: ") dcl-tempo-comma | |
1931 | (p "string: ") dcl-tempo-right-paren) | |
1932 | "f$cvsi" "" 'dcl-tempo-tags) | |
1933 | ||
1934 | (tempo-define-template "dcl-f$cvtime" | |
a1506d29 | 1935 | '("f$cvtime" dcl-tempo-left-paren |
43e34a41 RS |
1936 | (p "[input_time]: ") dcl-tempo-comma |
1937 | (p "[output_time_format]: ") dcl-tempo-comma | |
1938 | (p "[output_field]: ") dcl-tempo-right-paren) | |
1939 | "f$cvtime" "" 'dcl-tempo-tags) | |
1940 | ||
1941 | (tempo-define-template "dcl-f$cvui" | |
a1506d29 | 1942 | '("f$cvui" dcl-tempo-left-paren |
43e34a41 RS |
1943 | (p "start-bit: ") dcl-tempo-comma |
1944 | (p "number-of-bits: ") dcl-tempo-comma | |
1945 | (p "string") dcl-tempo-right-paren) | |
1946 | "f$cvui" "" 'dcl-tempo-tags) | |
1947 | ||
1948 | (tempo-define-template "dcl-f$device" | |
a1506d29 | 1949 | '("f$device" dcl-tempo-left-paren |
43e34a41 RS |
1950 | (p "[search_devnam]: ") dcl-tempo-comma |
1951 | (p "[devclass]: ") dcl-tempo-comma | |
1952 | (p "[devtype]: ") dcl-tempo-comma | |
1953 | (p "[stream-id]: ") dcl-tempo-right-paren) | |
1954 | "f$device" "" 'dcl-tempo-tags) | |
1955 | ||
1956 | (tempo-define-template "dcl-f$directory" | |
1957 | '("f$directory" dcl-tempo-left-paren | |
1958 | dcl-tempo-right-paren) | |
1959 | "f$directory" "" 'dcl-tempo-tags) | |
1960 | ||
1961 | (tempo-define-template "dcl-f$edit" | |
a1506d29 | 1962 | '("f$edit" dcl-tempo-left-paren |
43e34a41 RS |
1963 | (p "string: ") dcl-tempo-comma |
1964 | (p "edit-list: ") dcl-tempo-right-paren) | |
1965 | "f$edit" "" 'dcl-tempo-tags) | |
1966 | ||
1967 | (tempo-define-template "dcl-f$element" | |
a1506d29 | 1968 | '("f$element" dcl-tempo-left-paren |
43e34a41 RS |
1969 | (p "element-number: ") dcl-tempo-comma |
1970 | (p "delimiter: ") dcl-tempo-comma | |
1971 | (p "string: ") dcl-tempo-right-paren) | |
1972 | "f$element" "" 'dcl-tempo-tags) | |
1973 | ||
1974 | (tempo-define-template "dcl-f$environment" | |
a1506d29 | 1975 | '("f$environment" dcl-tempo-left-paren |
43e34a41 RS |
1976 | (p "item: ") dcl-tempo-right-paren) |
1977 | "f$environment" "" 'dcl-tempo-tags) | |
1978 | ||
1979 | (tempo-define-template "dcl-f$extract" | |
a1506d29 | 1980 | '("f$extract" dcl-tempo-left-paren |
43e34a41 RS |
1981 | (p "start: ") dcl-tempo-comma |
1982 | (p "length: ") dcl-tempo-comma | |
1983 | (p "string: ") dcl-tempo-right-paren) | |
1984 | "f$extract" "" 'dcl-tempo-tags) | |
1985 | ||
1986 | (tempo-define-template "dcl-f$fao" | |
a1506d29 | 1987 | '("f$fao" dcl-tempo-left-paren |
43e34a41 RS |
1988 | (p "control-string: ") dcl-tempo-comma |
1989 | ("argument[,...]: ") dcl-tempo-right-paren) | |
1990 | "f$fao" "" 'dcl-tempo-tags) | |
1991 | ||
1992 | (tempo-define-template "dcl-f$file_attributes" | |
a1506d29 | 1993 | '("f$file_attributes" dcl-tempo-left-paren |
43e34a41 RS |
1994 | (p "filespec: ") dcl-tempo-comma |
1995 | (p "item: ") dcl-tempo-right-paren) | |
1996 | "f$file_attributes" "" 'dcl-tempo-tags) | |
1997 | ||
1998 | (tempo-define-template "dcl-f$getdvi" | |
a1506d29 | 1999 | '("f$getdvi" dcl-tempo-left-paren |
43e34a41 RS |
2000 | (p "device-name: ") dcl-tempo-comma |
2001 | (p "item: ") dcl-tempo-right-paren) | |
2002 | "f$getdvi" "" 'dcl-tempo-tags) | |
2003 | ||
2004 | (tempo-define-template "dcl-f$getjpi" | |
a1506d29 | 2005 | '("f$getjpi" dcl-tempo-left-paren |
43e34a41 RS |
2006 | (p "pid: ") dcl-tempo-comma |
2007 | (p "item: ") dcl-tempo-right-paren ) | |
2008 | "f$getjpi" "" 'dcl-tempo-tags) | |
2009 | ||
2010 | (tempo-define-template "dcl-f$getqui" | |
a1506d29 | 2011 | '("f$getqui" dcl-tempo-left-paren |
43e34a41 RS |
2012 | (p "function: ") dcl-tempo-comma |
2013 | (p "[item]: ") dcl-tempo-comma | |
2014 | (p "[object-id]: ") dcl-tempo-comma | |
2015 | (p "[flags]: ") dcl-tempo-right-paren) | |
2016 | "f$getqui" "" 'dcl-tempo-tags) | |
2017 | ||
2018 | (tempo-define-template "dcl-f$getsyi" | |
a1506d29 | 2019 | '("f$getsyi" dcl-tempo-left-paren |
43e34a41 RS |
2020 | (p "item: ") dcl-tempo-comma |
2021 | (p "[node-name]: ") dcl-tempo-comma | |
2022 | (p "[cluster-id]: ") dcl-tempo-right-paren) | |
2023 | "f$getsyi" "" 'dcl-tempo-tags) | |
2024 | ||
2025 | (tempo-define-template "dcl-f$identifier" | |
a1506d29 | 2026 | '("f$identifier" dcl-tempo-left-paren |
43e34a41 RS |
2027 | (p "identifier: ") dcl-tempo-comma |
2028 | (p "conversion-type: ") dcl-tempo-right-paren) | |
2029 | "f$identifier" "" 'dcl-tempo-tags) | |
2030 | ||
2031 | (tempo-define-template "dcl-f$integer" | |
a1506d29 | 2032 | '("f$integer" dcl-tempo-left-paren |
43e34a41 RS |
2033 | (p "expression: ") dcl-tempo-right-paren) |
2034 | "f$integer" "" 'dcl-tempo-tags) | |
2035 | ||
2036 | (tempo-define-template "dcl-f$length" | |
2037 | '("f$length" dcl-tempo-left-paren | |
2038 | (p "string: ") dcl-tempo-right-paren ) | |
2039 | "f$length" "" 'dcl-tempo-tags) | |
2040 | ||
2041 | (tempo-define-template "dcl-f$locate" | |
a1506d29 | 2042 | '("f$locate" dcl-tempo-left-paren |
43e34a41 RS |
2043 | (p "substring: ") dcl-tempo-comma |
2044 | (p "string: ") dcl-tempo-right-paren) | |
2045 | "f$locate" "" 'dcl-tempo-tags) | |
2046 | ||
2047 | (tempo-define-template "dcl-f$message" | |
a1506d29 | 2048 | '("f$message" dcl-tempo-left-paren |
43e34a41 RS |
2049 | (p "status-code: ") dcl-tempo-right-paren ) |
2050 | "f$message" "" 'dcl-tempo-tags) | |
2051 | ||
2052 | (tempo-define-template "dcl-f$mode" | |
2053 | '("f$mode" dcl-tempo-left-paren dcl-tempo-right-paren) | |
2054 | "f$mode" "" 'dcl-tempo-tags) | |
2055 | ||
2056 | (tempo-define-template "dcl-f$parse" | |
a1506d29 | 2057 | '("f$parse" dcl-tempo-left-paren |
43e34a41 RS |
2058 | (p "filespec: ") dcl-tempo-comma |
2059 | (p "[default-spec]: ") dcl-tempo-comma | |
2060 | (p "[related-spec]: ") dcl-tempo-comma | |
2061 | (p "[field]: ") dcl-tempo-comma | |
2062 | (p "[parse-type]: ") dcl-tempo-right-paren) | |
2063 | "f$parse" "" 'dcl-tempo-tags) | |
2064 | ||
2065 | (tempo-define-template "dcl-f$pid" | |
a1506d29 | 2066 | '("f$pid" dcl-tempo-left-paren |
43e34a41 RS |
2067 | (p "context-symbol: ") dcl-tempo-right-paren) |
2068 | "f$pid" "" 'dcl-tempo-tags) | |
2069 | ||
2070 | (tempo-define-template "dcl-f$privilege" | |
a1506d29 | 2071 | '("f$privilege" dcl-tempo-left-paren |
43e34a41 RS |
2072 | (p "priv-states: ") dcl-tempo-right-paren) |
2073 | "f$privilege" "" 'dcl-tempo-tags) | |
2074 | ||
2075 | (tempo-define-template "dcl-f$process" | |
2076 | '("f$process()") | |
2077 | "f$process" "" 'dcl-tempo-tags) | |
2078 | ||
2079 | (tempo-define-template "dcl-f$search" | |
a1506d29 | 2080 | '("f$search" dcl-tempo-left-paren |
43e34a41 RS |
2081 | (p "filespec: ") dcl-tempo-comma |
2082 | (p "[stream-id]: ") dcl-tempo-right-paren) | |
2083 | "f$search" "" 'dcl-tempo-tags) | |
2084 | ||
2085 | (tempo-define-template "dcl-f$setprv" | |
a1506d29 | 2086 | '("f$setprv" dcl-tempo-left-paren |
43e34a41 RS |
2087 | (p "priv-states: ") dcl-tempo-right-paren) |
2088 | "f$setprv" "" 'dcl-tempo-tags) | |
2089 | ||
2090 | (tempo-define-template "dcl-f$string" | |
a1506d29 | 2091 | '("f$string" dcl-tempo-left-paren |
43e34a41 RS |
2092 | (p "expression: ") dcl-tempo-right-paren) |
2093 | "f$string" "" 'dcl-tempo-tags) | |
2094 | ||
2095 | (tempo-define-template "dcl-f$time" | |
2096 | '("f$time" dcl-tempo-left-paren dcl-tempo-right-paren) | |
2097 | "f$time" "" 'dcl-tempo-tags) | |
2098 | ||
2099 | (tempo-define-template "dcl-f$trnlnm" | |
a1506d29 | 2100 | '("f$trnlnm" dcl-tempo-left-paren |
43e34a41 RS |
2101 | (p "logical-name: ") dcl-tempo-comma |
2102 | (p "[table]: ") dcl-tempo-comma | |
2103 | (p "[index]: ") dcl-tempo-comma | |
2104 | (p "[mode]: ") dcl-tempo-comma | |
2105 | (p "[case]: ") dcl-tempo-comma | |
2106 | (p "[item]: ") dcl-tempo-right-paren) | |
2107 | "f$trnlnm" "" 'dcl-tempo-tags) | |
2108 | ||
2109 | (tempo-define-template "dcl-f$type" | |
a1506d29 | 2110 | '("f$type" dcl-tempo-left-paren |
43e34a41 RS |
2111 | (p "symbol-name: ") dcl-tempo-right-paren) |
2112 | "f$type" "" 'dcl-tempo-tags) | |
2113 | ||
2114 | (tempo-define-template "dcl-f$user" | |
2115 | '("f$user" dcl-tempo-left-paren dcl-tempo-right-paren) | |
2116 | "f$user" "" 'dcl-tempo-tags) | |
2117 | ||
2118 | (tempo-define-template "dcl-f$verify" | |
a1506d29 | 2119 | '("f$verify" dcl-tempo-left-paren |
43e34a41 RS |
2120 | (p "[procedure-value]: ") dcl-tempo-comma |
2121 | (p "[image-value]: ") dcl-tempo-right-paren) | |
2122 | "f$verify" "" 'dcl-tempo-tags) | |
2123 | ||
2124 | ||
2125 | ||
2126 | ||
2127 | ;;; *** Unsorted stuff ***************************************************** | |
2128 | ||
2129 | ||
2130 | ;;;------------------------------------------------------------------------- | |
2131 | (defun dcl-beginning-of-command-p () | |
2132 | "Return t if point is at the beginning of a command. | |
2133 | Otherwise return nil." | |
2134 | (and (bolp) | |
2135 | (eq (dcl-get-line-type) '$))) | |
2136 | ||
2137 | ||
2138 | ;;;------------------------------------------------------------------------- | |
2139 | (defun dcl-end-of-command-p () | |
2140 | "Check if point is at the end of a command. | |
2141 | Return t if point is at the end of a command, either the end of an | |
2142 | only line or at the end of the last continuation line. | |
2143 | Otherwise return nil." | |
2144 | ;; Must be at end-of-line on a command line or a continuation line | |
2145 | (let ((type (dcl-get-line-type))) | |
2146 | (if (and (eolp) | |
2147 | (or (eq type '$) | |
2148 | (eq type '-))) | |
2149 | ;; Next line must not be a continuation line | |
2150 | (save-excursion | |
2151 | (forward-line) | |
2152 | (not (eq (dcl-get-line-type) '-)))))) | |
2153 | ||
2154 | ||
2155 | ;;;------------------------------------------------------------------------- | |
2156 | (defun dcl-command-p () | |
2157 | "Check if point is on a command line. | |
2158 | Return t if point is on a command line or a continuation line, | |
2159 | otherwise return nil." | |
2160 | (let ((type (dcl-get-line-type))) | |
2161 | (or (eq type '$) | |
2162 | (eq type '-)))) | |
2163 | ||
2164 | ||
2165 | ;;;------------------------------------------------------------------------- | |
2166 | (defun dcl-was-looking-at (regexp) | |
2167 | (save-excursion | |
2168 | (let ((start (point)) | |
2169 | (found (re-search-backward regexp 0 t))) | |
2170 | (if (not found) | |
2171 | () | |
2172 | (equal start (match-end 0)))))) | |
2173 | ||
a1506d29 | 2174 | |
43e34a41 RS |
2175 | ;;;------------------------------------------------------------------------- |
2176 | (defun dcl-imenu-create-index-function () | |
2177 | "Jacket routine to make imenu searches non case sensitive." | |
2178 | (let ((case-fold-search t)) | |
2179 | (imenu-default-create-index-function))) | |
2180 | ||
2181 | ||
2182 | ||
2183 | ;;; *** Epilogue ************************************************************ | |
2184 | ||
2185 | ||
2186 | (provide 'dcl-mode) | |
2187 | ||
2188 | (run-hooks 'dcl-mode-load-hook) ; for your customizations | |
2189 | ||
2190 | ;;; dcl-mode.el ends here |