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c4f268a1 | 1 | ;;; opascal.el --- major mode for editing Object Pascal source in Emacs -*- lexical-binding: t -*- |
70492703 | 2 | |
ba318903 | 3 | ;; Copyright (C) 1998-1999, 2001-2014 Free Software Foundation, Inc. |
70492703 | 4 | |
c05423d4 CY |
5 | ;; Authors: Ray Blaak <blaak@infomatch.com>, |
6 | ;; Simon South <ssouth@member.fsf.org> | |
7 | ;; Maintainer: Simon South <ssouth@member.fsf.org> | |
70492703 KH |
8 | ;; Keywords: languages |
9 | ||
10 | ;; This file is part of GNU Emacs. | |
11 | ||
b1fc2b50 GM |
12 | ;; GNU Emacs is free software: you can redistribute it and/or modify |
13 | ;; it under the terms of the GNU General Public License as published by | |
14 | ;; the Free Software Foundation, either version 3 of the License, or | |
15 | ;; (at your option) any later version. | |
70492703 | 16 | |
b1fc2b50 GM |
17 | ;; GNU Emacs is distributed in the hope that it will be useful, |
18 | ;; but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | ;; GNU General Public License for more details. | |
70492703 | 21 | |
b1fc2b50 GM |
22 | ;; You should have received a copy of the GNU General Public License |
23 | ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. | |
70492703 KH |
24 | |
25 | ;;; Commentary: | |
26 | ||
c4f268a1 SM |
27 | ;; To enter OPascal mode when you find an Object Pascal source file, one must |
28 | ;; override the auto-mode-alist to associate OPascal with .pas (and .dpr and | |
29 | ;; .dpk) files. Emacs, by default, will otherwise enter Pascal mode. E.g. | |
70492703 | 30 | ;; |
c4f268a1 SM |
31 | ;; (autoload 'opascal-mode "opascal") |
32 | ;; (add-to-list 'auto-mode-alist | |
33 | ;; '("\\.\\(pas\\|dpr\\|dpk\\)\\'" . opascal-mode)) | |
70492703 | 34 | |
c4f268a1 | 35 | ;; When you have entered OPascal mode, you may get more info by pressing |
70492703 KH |
36 | ;; C-h m. |
37 | ||
c4f268a1 SM |
38 | ;; This OPascal mode implementation is fairly tolerant of syntax errors, |
39 | ;; relying as much as possible on the indentation of the previous statement. | |
40 | ;; This also makes it faster and simpler, since there is less searching for | |
41 | ;; properly constructed beginnings. | |
70492703 KH |
42 | |
43 | ;;; Code: | |
44 | ||
c4f268a1 SM |
45 | (defgroup opascal nil |
46 | "Major mode for editing OPascal source in Emacs." | |
47 | :version "24.4" | |
70492703 KH |
48 | :group 'languages) |
49 | ||
c4f268a1 | 50 | (defconst opascal-debug nil |
70492703 KH |
51 | "True if in debug mode.") |
52 | ||
c4f268a1 SM |
53 | (define-obsolete-variable-alias |
54 | 'delphi-search-path 'opascal-search-path "24.4") | |
55 | (defcustom opascal-search-path "." | |
fb7ada5f | 56 | "Directories to search when finding external units. |
5ba5fb81 JB |
57 | It is a list of directory strings. If only a single directory, |
58 | it can be a single string instead of a list. If a directory | |
59 | ends in \"...\" then that directory is recursively searched." | |
c4f268a1 | 60 | :type 'string) |
70492703 | 61 | |
c4f268a1 SM |
62 | (define-obsolete-variable-alias |
63 | 'delphi-indent-level 'opascal-indent-level "24.4") | |
64 | (defcustom opascal-indent-level 3 | |
65 | "Indentation of OPascal statements with respect to containing block. | |
5ba5fb81 | 66 | E.g. |
70492703 KH |
67 | |
68 | begin | |
69 | // This is an indent of 3. | |
70 | end;" | |
c4f268a1 | 71 | :type 'integer) |
70492703 | 72 | |
c4f268a1 SM |
73 | (define-obsolete-variable-alias |
74 | 'delphi-compound-block-indent 'opascal-compound-block-indent "24.4") | |
75 | (defcustom opascal-compound-block-indent 0 | |
7644aa97 | 76 | "Extra indentation for blocks in compound statements. E.g. |
70492703 KH |
77 | |
78 | // block indent = 0 vs // block indent = 2 | |
79 | if b then if b then | |
80 | begin begin | |
81 | end else begin end | |
82 | end; else | |
83 | begin | |
84 | end;" | |
c4f268a1 | 85 | :type 'integer) |
70492703 | 86 | |
c4f268a1 SM |
87 | (define-obsolete-variable-alias |
88 | 'delphi-case-label-indent 'opascal-case-label-indent "24.4") | |
89 | (defcustom opascal-case-label-indent opascal-indent-level | |
7644aa97 | 90 | "Extra indentation for case statement labels. E.g. |
70492703 KH |
91 | |
92 | // case indent = 0 vs // case indent = 3 | |
93 | case value of case value of | |
94 | v1: process_v1; v1: process_v1; | |
95 | v2: process_v2; v2: process_v2; | |
96 | else else | |
97 | process_else; process_else; | |
98 | end; end;" | |
c4f268a1 | 99 | :type 'integer) |
70492703 | 100 | |
c4f268a1 SM |
101 | (define-obsolete-variable-alias 'delphi-verbose 'opascal-verbose "24.4") |
102 | (defcustom opascal-verbose t ; nil | |
103 | "If true then OPascal token processing progress is reported to the user." | |
104 | :type 'boolean) | |
70492703 | 105 | |
c4f268a1 SM |
106 | (define-obsolete-variable-alias |
107 | 'delphi-tab-always-indents 'opascal-tab-always-indents "24.4") | |
108 | (defcustom opascal-tab-always-indents tab-always-indent | |
de6a923b GM |
109 | "Non-nil means `opascal-tab' should always reindent the current line. |
110 | That is, regardless of where in the line point is at the time." | |
c4f268a1 SM |
111 | :type 'boolean) |
112 | ||
de6a923b GM |
113 | (make-obsolete-variable 'opascal-tab-always-indents |
114 | "use `indent-for-tab-command' and `tab-always-indent'." | |
115 | "24.4") | |
116 | ||
c4f268a1 | 117 | (defconst opascal-directives |
70492703 KH |
118 | '(absolute abstract assembler automated cdecl default dispid dynamic |
119 | export external far forward index inline message name near nodefault | |
a1506d29 | 120 | overload override pascal private protected public published read readonly |
70492703 KH |
121 | register reintroduce resident resourcestring safecall stdcall stored |
122 | virtual write writeonly) | |
c4f268a1 | 123 | "OPascal4 directives.") |
70492703 | 124 | |
c4f268a1 | 125 | (defconst opascal-keywords |
70492703 KH |
126 | (append |
127 | '(;; Keywords. | |
128 | and array as asm at begin case class const constructor contains | |
129 | destructor dispinterface div do downto else end except exports | |
130 | file finalization finally for function goto if implementation implements | |
a1506d29 | 131 | in inherited initialization interface is label library mod nil not |
70492703 | 132 | of object on or out package packed procedure program property |
a1506d29 | 133 | raise record repeat requires result self set shl shr then threadvar |
70492703 KH |
134 | to try type unit uses until var while with xor |
135 | ||
136 | ;; These routines should be keywords, if Borland had the balls. | |
137 | break exit) | |
138 | ||
139 | ;; We want directives to look like keywords. | |
c4f268a1 SM |
140 | opascal-directives) |
141 | "OPascal4 keywords.") | |
70492703 | 142 | |
c4f268a1 | 143 | (defconst opascal-previous-terminators `(semicolon comma) |
70492703 KH |
144 | "Expression/statement terminators that denote a previous expression.") |
145 | ||
c4f268a1 | 146 | (defconst opascal-comments |
70492703 KH |
147 | '(comment-single-line comment-multi-line-1 comment-multi-line-2) |
148 | "Tokens that represent comments.") | |
149 | ||
c4f268a1 | 150 | (defconst opascal-strings |
70492703 KH |
151 | '(string double-quoted-string) |
152 | "Tokens that represent string literals.") | |
153 | ||
c4f268a1 | 154 | (defconst opascal-whitespace `(space newline ,@opascal-comments) |
70492703 KH |
155 | "Tokens that are considered whitespace.") |
156 | ||
c4f268a1 | 157 | (defconst opascal-routine-statements |
70492703 KH |
158 | '(procedure function constructor destructor property) |
159 | "Marks the start of a routine, or routine-ish looking expression.") | |
160 | ||
c4f268a1 | 161 | (defconst opascal-body-expr-statements '(if while for on) |
70492703 KH |
162 | "Statements that have either a single statement or a block as a body and also |
163 | are followed by an expression.") | |
164 | ||
c4f268a1 | 165 | (defconst opascal-expr-statements `(case ,@opascal-body-expr-statements) |
70492703 KH |
166 | "Expression statements contain expressions after their keyword.") |
167 | ||
c4f268a1 | 168 | (defconst opascal-body-statements `(else ,@opascal-body-expr-statements) |
70492703 KH |
169 | "Statements that have either a single statement or a block as a body.") |
170 | ||
c4f268a1 | 171 | (defconst opascal-expr-delimiters '(then do of) |
70492703 KH |
172 | "Expression delimiter tokens.") |
173 | ||
c4f268a1 | 174 | (defconst opascal-binary-ops |
70492703 | 175 | '(plus minus equals not-equals times divides div mod and or xor) |
c4f268a1 | 176 | "OPascal binary operations.") |
70492703 | 177 | |
c4f268a1 | 178 | (defconst opascal-visibilities '(public private protected published automated) |
70492703 KH |
179 | "Class visibilities.") |
180 | ||
c4f268a1 | 181 | (defconst opascal-block-statements |
06c24636 | 182 | '(begin try case repeat initialization finalization asm) |
70492703 KH |
183 | "Statements that contain multiple substatements.") |
184 | ||
c4f268a1 SM |
185 | (defconst opascal-mid-block-statements |
186 | `(except finally ,@opascal-visibilities) | |
70492703 KH |
187 | "Statements that mark mid sections of the enclosing block.") |
188 | ||
c4f268a1 | 189 | (defconst opascal-end-block-statements `(end until) |
70492703 KH |
190 | "Statements that end block sections.") |
191 | ||
c4f268a1 SM |
192 | (defconst opascal-match-block-statements |
193 | `(,@opascal-end-block-statements ,@opascal-mid-block-statements) | |
70492703 KH |
194 | "Statements that match the indentation of the parent block.") |
195 | ||
c4f268a1 | 196 | (defconst opascal-decl-sections '(type const var label resourcestring) |
70492703 KH |
197 | "Denotes the start of a declaration section.") |
198 | ||
c4f268a1 | 199 | (defconst opascal-interface-types '(dispinterface interface) |
c05423d4 CY |
200 | "Interface types.") |
201 | ||
c4f268a1 | 202 | (defconst opascal-class-types '(class object) |
70492703 KH |
203 | "Class types.") |
204 | ||
c4f268a1 SM |
205 | (defconst opascal-composite-types |
206 | `(,@opascal-class-types ,@opascal-interface-types record) | |
70492703 KH |
207 | "Types that contain declarations within them.") |
208 | ||
c4f268a1 | 209 | (defconst opascal-unit-sections |
70492703 KH |
210 | '(interface implementation program library package) |
211 | "Unit sections within which the indent is 0.") | |
212 | ||
c4f268a1 | 213 | (defconst opascal-use-clauses `(uses requires exports contains) |
70492703 KH |
214 | "Statements that refer to foreign symbols.") |
215 | ||
c4f268a1 SM |
216 | (defconst opascal-unit-statements |
217 | `(,@opascal-use-clauses ,@opascal-unit-sections initialization finalization) | |
70492703 KH |
218 | "Statements indented at level 0.") |
219 | ||
c4f268a1 SM |
220 | (defconst opascal-decl-delimiters |
221 | `(,@opascal-decl-sections ,@opascal-unit-statements | |
222 | ,@opascal-routine-statements) | |
70492703 KH |
223 | "Statements that a declaration statement should align with.") |
224 | ||
c4f268a1 SM |
225 | (defconst opascal-decl-matchers |
226 | `(begin ,@opascal-decl-sections) | |
70492703 KH |
227 | "Statements that should match to declaration statement indentation.") |
228 | ||
c4f268a1 SM |
229 | (defconst opascal-enclosing-statements |
230 | `(,@opascal-block-statements ,@opascal-mid-block-statements | |
231 | ,@opascal-decl-sections ,@opascal-use-clauses ,@opascal-routine-statements) | |
70492703 KH |
232 | "Delimits an enclosing statement.") |
233 | ||
c4f268a1 SM |
234 | (defconst opascal-previous-statements |
235 | `(,@opascal-unit-statements ,@opascal-routine-statements) | |
70492703 KH |
236 | "Delimits a previous statement.") |
237 | ||
c4f268a1 SM |
238 | (defconst opascal-previous-enclosing-statements |
239 | `(,@opascal-block-statements ,@opascal-mid-block-statements | |
240 | ,@opascal-decl-sections) | |
70492703 KH |
241 | "Delimits a previous enclosing statement.") |
242 | ||
c4f268a1 SM |
243 | (defconst opascal-begin-enclosing-tokens |
244 | `(,@opascal-block-statements ,@opascal-mid-block-statements) | |
70492703 KH |
245 | "Tokens that a begin token indents from.") |
246 | ||
c4f268a1 SM |
247 | (defconst opascal-begin-previous-tokens |
248 | `(,@opascal-decl-sections ,@opascal-routine-statements) | |
70492703 KH |
249 | "Tokens that a begin token aligns with, but only if not part of a nested |
250 | routine.") | |
251 | ||
c4f268a1 SM |
252 | (defconst opascal-space-chars "\000-\011\013- ") ; all except \n |
253 | (defconst opascal-non-space-chars (concat "^" opascal-space-chars)) | |
254 | (defconst opascal-spaces-re (concat "[" opascal-space-chars "]*")) | |
255 | (defconst opascal-leading-spaces-re (concat "^" opascal-spaces-re)) | |
256 | (defconst opascal-word-chars "a-zA-Z0-9_") | |
257 | ||
1693b06a SM |
258 | (defvar opascal-mode-syntax-table |
259 | (let ((st (make-syntax-table))) | |
260 | ;; Strings. | |
261 | (modify-syntax-entry ?\" "\"" st) | |
262 | (modify-syntax-entry ?\' "\"" st) | |
263 | ;; Comments. | |
264 | (modify-syntax-entry ?\{ "<" st) | |
265 | (modify-syntax-entry ?\} ">" st) | |
266 | (modify-syntax-entry ?\( "()1" st) | |
267 | (modify-syntax-entry ?\) ")(4" st) | |
268 | (modify-syntax-entry ?* ". 23b" st) | |
269 | (modify-syntax-entry ?/ ". 12c" st) | |
270 | (modify-syntax-entry ?\n "> c" st) | |
271 | st)) | |
272 | ||
c4f268a1 | 273 | (defmacro opascal-save-excursion (&rest forms) |
70492703 KH |
274 | ;; Executes the forms such that any movements have no effect, including |
275 | ;; searches. | |
276 | `(save-excursion | |
c4f268a1 | 277 | (save-match-data |
70492703 KH |
278 | (let ((inhibit-point-motion-hooks t) |
279 | (deactivate-mark nil)) | |
280 | (progn ,@forms))))) | |
281 | ||
c4f268a1 | 282 | (defsubst opascal-is (element in-set) |
70492703 KH |
283 | ;; If the element is in the set, the element cdr is returned, otherwise nil. |
284 | (memq element in-set)) | |
285 | ||
c4f268a1 | 286 | (defun opascal-string-of (start end) |
70492703 KH |
287 | ;; Returns the buffer string from start to end. |
288 | (buffer-substring-no-properties start end)) | |
289 | ||
c4f268a1 | 290 | (defun opascal-looking-at-string (p s) |
70492703 KH |
291 | ;; True if point p marks the start of string s. s is not a regular |
292 | ;; expression. | |
293 | (let ((limit (+ p (length s)))) | |
294 | (and (<= limit (point-max)) | |
c4f268a1 | 295 | (string= s (opascal-string-of p limit))))) |
70492703 | 296 | |
c4f268a1 | 297 | (defun opascal-token-of (kind start end) |
70492703 KH |
298 | ;; Constructs a token from a kind symbol and its start/end points. |
299 | `[,kind ,start ,end]) | |
300 | ||
c4f268a1 | 301 | (defsubst opascal-token-kind (token) |
70492703 KH |
302 | ;; Returns the kind symbol of the token. |
303 | (if token (aref token 0) nil)) | |
304 | ||
c4f268a1 | 305 | (defun opascal-set-token-kind (token to-kind) |
70492703 KH |
306 | ;; Sets the kind symbol of the token. |
307 | (if token (aset token 0 to-kind))) | |
308 | ||
c4f268a1 | 309 | (defsubst opascal-token-start (token) |
70492703 KH |
310 | ;; Returns the start point of the token. |
311 | (if token (aref token 1) (point-min))) | |
312 | ||
c4f268a1 | 313 | (defsubst opascal-token-end (token) |
70492703 KH |
314 | ;; Returns the end point of the token. |
315 | (if token (aref token 2) (point-min))) | |
316 | ||
c4f268a1 | 317 | (defun opascal-set-token-start (token start) |
70492703 KH |
318 | ;; Sets the start point of the token. |
319 | (if token (aset token 1 start))) | |
320 | ||
c4f268a1 | 321 | (defun opascal-set-token-end (token end) |
70492703 KH |
322 | ;; Sets the end point of the token. |
323 | (if token (aset token 2 end))) | |
324 | ||
c4f268a1 | 325 | (defun opascal-token-string (token) |
70492703 KH |
326 | ;; Returns the string image of the token. |
327 | (if token | |
c4f268a1 | 328 | (opascal-string-of (opascal-token-start token) (opascal-token-end token)) |
70492703 KH |
329 | "")) |
330 | ||
c4f268a1 | 331 | (defun opascal-in-token (p token) |
70492703 | 332 | ;; Returns true if the point p is within the token's start/end points. |
c4f268a1 | 333 | (and (<= (opascal-token-start token) p) (< p (opascal-token-end token)))) |
70492703 | 334 | |
c4f268a1 | 335 | (defun opascal-column-of (p) |
70492703 KH |
336 | ;; Returns the column of the point p. |
337 | (save-excursion (goto-char p) (current-column))) | |
338 | ||
c4f268a1 | 339 | (defvar opascal-progress-last-reported-point nil |
70492703 KH |
340 | "The last point at which progress was reported.") |
341 | ||
c4f268a1 | 342 | (defconst opascal-parsing-progress-step 16384 |
70492703 | 343 | "Number of chars to process before the next parsing progress report.") |
c4f268a1 | 344 | (defconst opascal-scanning-progress-step 2048 |
70492703 | 345 | "Number of chars to process before the next scanning progress report.") |
70492703 | 346 | |
c4f268a1 | 347 | (defun opascal-progress-start () |
70492703 | 348 | ;; Initializes progress reporting. |
c4f268a1 | 349 | (setq opascal-progress-last-reported-point nil)) |
70492703 | 350 | |
c4f268a1 | 351 | (defun opascal-progress-done (&rest msgs) |
70492703 | 352 | ;; Finalizes progress reporting. |
c4f268a1 SM |
353 | (setq opascal-progress-last-reported-point nil) |
354 | (when opascal-verbose | |
70492703 KH |
355 | (if (null msgs) |
356 | (message "") | |
357 | (apply #'message msgs)))) | |
358 | ||
c4f268a1 | 359 | (defun opascal-step-progress (p desc step-size) |
70492703 KH |
360 | ;; If enough distance has elapsed since the last reported point, then report |
361 | ;; the current progress to the user. | |
c4f268a1 | 362 | (cond ((null opascal-progress-last-reported-point) |
70492703 | 363 | ;; This is the first progress step. |
c4f268a1 | 364 | (setq opascal-progress-last-reported-point p)) |
70492703 | 365 | |
c4f268a1 SM |
366 | ((and opascal-verbose |
367 | (>= (abs (- p opascal-progress-last-reported-point)) step-size)) | |
70492703 | 368 | ;; Report the percentage complete. |
c4f268a1 | 369 | (setq opascal-progress-last-reported-point p) |
70492703 KH |
370 | (message "%s %s ... %d%%" |
371 | desc (buffer-name) (/ (* 100 p) (point-max)))))) | |
372 | ||
c4f268a1 | 373 | (defun opascal-next-line-start (&optional from-point) |
70492703 KH |
374 | ;; Returns the first point of the next line. |
375 | (let ((curr-point (point)) | |
376 | (next nil)) | |
377 | (if from-point (goto-char from-point)) | |
378 | (end-of-line) | |
379 | (setq next (min (1+ (point)) (point-max))) | |
380 | (goto-char curr-point) | |
381 | next)) | |
382 | ||
1693b06a | 383 | (defconst opascal--literal-start-re (regexp-opt '("//" "{" "(*" "'" "\""))) |
70492703 | 384 | |
c4f268a1 | 385 | (defun opascal-literal-kind (p) |
70492703 | 386 | ;; Returns the literal kind the point p is in (or nil if not in a literal). |
1693b06a SM |
387 | (when (and (<= (point-min) p) (<= p (point-max))) |
388 | (save-excursion | |
389 | (let ((ppss (syntax-ppss p))) | |
390 | ;; We want to return non-nil when right in front | |
391 | ;; of a comment/string. | |
392 | (if (null (nth 8 ppss)) | |
393 | (when (looking-at opascal--literal-start-re) | |
394 | (pcase (char-after) | |
395 | (`?/ 'comment-single-line) | |
396 | (`?\{ 'comment-multi-line-1) | |
397 | (`?\( 'comment-multi-line-2) | |
398 | (`?\' 'string) | |
399 | (`?\" 'double-quoted-string))) | |
400 | (if (nth 3 ppss) ;String. | |
401 | (if (eq (nth 3 ppss) ?\") | |
402 | 'double-quoted-string 'string) | |
403 | (pcase (nth 7 ppss) | |
404 | (`2 'comment-single-line) | |
405 | (`1 'comment-multi-line-2) | |
406 | (_ 'comment-multi-line-1)))))))) | |
70492703 | 407 | |
c4f268a1 | 408 | (defun opascal-literal-start-pattern (literal-kind) |
70492703 KH |
409 | ;; Returns the start pattern of the literal kind. |
410 | (cdr (assoc literal-kind | |
411 | '((comment-single-line . "//") | |
412 | (comment-multi-line-1 . "{") | |
413 | (comment-multi-line-2 . "(*") | |
414 | (string . "'") | |
415 | (double-quoted-string . "\""))))) | |
416 | ||
c4f268a1 | 417 | (defun opascal-literal-end-pattern (literal-kind) |
70492703 KH |
418 | ;; Returns the end pattern of the literal kind. |
419 | (cdr (assoc literal-kind | |
420 | '((comment-single-line . "\n") | |
421 | (comment-multi-line-1 . "}") | |
422 | (comment-multi-line-2 . "*)") | |
423 | (string . "'") | |
424 | (double-quoted-string . "\""))))) | |
425 | ||
c4f268a1 | 426 | (defun opascal-literal-stop-pattern (literal-kind) |
70492703 KH |
427 | ;; Returns the pattern that delimits end of the search for the literal kind. |
428 | ;; These are regular expressions. | |
429 | (cdr (assoc literal-kind | |
430 | '((comment-single-line . "\n") | |
431 | (comment-multi-line-1 . "}") | |
432 | (comment-multi-line-2 . "\\*)") | |
433 | ;; Strings cannot span lines. | |
434 | (string . "['\n]") | |
435 | (double-quoted-string . "[\"\n]"))))) | |
436 | ||
c4f268a1 | 437 | (defun opascal-is-literal-end (p) |
70492703 | 438 | ;; True if the point p is at the end point of a (completed) literal. |
1693b06a SM |
439 | (save-excursion |
440 | (and (null (nth 8 (syntax-ppss p))) | |
441 | (nth 8 (syntax-ppss (1- p)))))) | |
70492703 | 442 | |
c4f268a1 | 443 | (defun opascal-literal-token-at (p) |
1693b06a SM |
444 | "Return the literal token surrounding the point P, or nil if none." |
445 | (save-excursion | |
446 | (let ((ppss (syntax-ppss p))) | |
447 | (when (or (nth 8 ppss) (looking-at opascal--literal-start-re)) | |
448 | (let* ((new-start (or (nth 8 ppss) p)) | |
449 | (new-end (progn | |
450 | (goto-char new-start) | |
451 | (condition-case nil | |
452 | (if (memq (char-after) '(?\' ?\")) | |
453 | (forward-sexp 1) | |
454 | (forward-comment 1)) | |
455 | (scan-error (goto-char (point-max)))) | |
456 | (point)))) | |
457 | (opascal-token-of (opascal-literal-kind p) new-start new-end)))))) | |
70492703 | 458 | |
c4f268a1 | 459 | (defun opascal-point-token-at (p kind) |
70492703 | 460 | ;; Returns the single character token at the point p. |
c4f268a1 | 461 | (opascal-token-of kind p (1+ p))) |
70492703 | 462 | |
c4f268a1 | 463 | (defsubst opascal-char-token-at (p char kind) |
70492703 KH |
464 | ;; Returns the token at the point p that describes the specified character. |
465 | ;; If not actually over such a character, nil is returned. | |
466 | (when (eq char (char-after p)) | |
c4f268a1 | 467 | (opascal-token-of kind p (1+ p)))) |
70492703 | 468 | |
c4f268a1 | 469 | (defun opascal-charset-token-at (p charset kind) |
70492703 KH |
470 | ;; Returns the token surrounding point p that contains only members of the |
471 | ;; character set. | |
472 | (let ((currp (point)) | |
473 | (end nil) | |
70492703 KH |
474 | (token nil)) |
475 | (goto-char p) | |
476 | (when (> (skip-chars-forward charset) 0) | |
477 | (setq end (point)) | |
478 | (goto-char (1+ p)) | |
479 | (skip-chars-backward charset) | |
c4f268a1 | 480 | (setq token (opascal-token-of kind (point) end))) |
70492703 KH |
481 | (goto-char currp) |
482 | token)) | |
483 | ||
c4f268a1 | 484 | (defun opascal-space-token-at (p) |
70492703 KH |
485 | ;; If point p is surrounded by space characters, then return the token of the |
486 | ;; contiguous spaces. | |
c4f268a1 | 487 | (opascal-charset-token-at p opascal-space-chars 'space)) |
70492703 | 488 | |
c4f268a1 | 489 | (defun opascal-word-token-at (p) |
70492703 KH |
490 | ;; If point p is over a word (i.e. identifier characters), then return a word |
491 | ;; token. If the word is actually a keyword, then return the keyword token. | |
c4f268a1 | 492 | (let ((word (opascal-charset-token-at p opascal-word-chars 'word))) |
70492703 | 493 | (when word |
c4f268a1 | 494 | (let* ((word-image (downcase (opascal-token-string word))) |
70492703 KH |
495 | (keyword (intern-soft word-image))) |
496 | (when (and (or keyword (string= "nil" word-image)) | |
c4f268a1 SM |
497 | (opascal-is keyword opascal-keywords)) |
498 | (opascal-set-token-kind word keyword)) | |
70492703 KH |
499 | word)))) |
500 | ||
c4f268a1 | 501 | (defun opascal-explicit-token-at (p token-string kind) |
70492703 KH |
502 | ;; If point p is anywhere in the token string then returns the resulting |
503 | ;; token. | |
c4f268a1 SM |
504 | (let ((token (opascal-charset-token-at p token-string kind))) |
505 | (when (and token (string= token-string (opascal-token-string token))) | |
70492703 KH |
506 | token))) |
507 | ||
c4f268a1 | 508 | (defun opascal-token-at (p) |
70492703 KH |
509 | ;; Returns the token from parsing text at point p. |
510 | (when (and (<= (point-min) p) (<= p (point-max))) | |
c4f268a1 | 511 | (cond ((opascal-char-token-at p ?\n 'newline)) |
a11b38ee | 512 | |
c4f268a1 | 513 | ((opascal-literal-token-at p)) |
70492703 | 514 | |
c4f268a1 | 515 | ((opascal-space-token-at p)) |
70492703 | 516 | |
c4f268a1 | 517 | ((opascal-word-token-at p)) |
70492703 | 518 | |
c4f268a1 SM |
519 | ((opascal-char-token-at p ?\( 'open-group)) |
520 | ((opascal-char-token-at p ?\) 'close-group)) | |
521 | ((opascal-char-token-at p ?\[ 'open-group)) | |
522 | ((opascal-char-token-at p ?\] 'close-group)) | |
523 | ((opascal-char-token-at p ?\; 'semicolon)) | |
524 | ((opascal-char-token-at p ?. 'dot)) | |
525 | ((opascal-char-token-at p ?, 'comma)) | |
526 | ((opascal-char-token-at p ?= 'equals)) | |
527 | ((opascal-char-token-at p ?+ 'plus)) | |
528 | ((opascal-char-token-at p ?- 'minus)) | |
529 | ((opascal-char-token-at p ?* 'times)) | |
530 | ((opascal-char-token-at p ?/ 'divides)) | |
531 | ((opascal-char-token-at p ?: 'colon)) | |
70492703 | 532 | |
c4f268a1 | 533 | ((opascal-explicit-token-at p "<>" 'not-equals)) |
70492703 | 534 | |
c4f268a1 | 535 | ((opascal-point-token-at p 'punctuation))))) |
70492703 | 536 | |
c4f268a1 SM |
537 | (defun opascal-current-token () |
538 | ;; Returns the opascal source token under the current point. | |
539 | (opascal-token-at (point))) | |
70492703 | 540 | |
c4f268a1 | 541 | (defun opascal-next-token (token) |
70492703 KH |
542 | ;; Returns the token after the specified token. |
543 | (when token | |
c4f268a1 | 544 | (let ((next (opascal-token-at (opascal-token-end token)))) |
70492703 | 545 | (if next |
c4f268a1 SM |
546 | (opascal-step-progress (opascal-token-start next) "Scanning" |
547 | opascal-scanning-progress-step)) | |
70492703 KH |
548 | next))) |
549 | ||
c4f268a1 | 550 | (defun opascal-previous-token (token) |
70492703 KH |
551 | ;; Returns the token before the specified token. |
552 | (when token | |
c4f268a1 | 553 | (let ((previous (opascal-token-at (1- (opascal-token-start token))))) |
70492703 | 554 | (if previous |
c4f268a1 SM |
555 | (opascal-step-progress (opascal-token-start previous) "Scanning" |
556 | opascal-scanning-progress-step)) | |
70492703 KH |
557 | previous))) |
558 | ||
c4f268a1 | 559 | (defun opascal-next-visible-token (token) |
70492703 KH |
560 | ;; Returns the first non-space token after the specified token. |
561 | (let (next-token) | |
562 | (while (progn | |
c4f268a1 SM |
563 | (setq next-token (opascal-next-token token)) |
564 | (opascal-is (opascal-token-kind next-token) '(space newline)))) | |
70492703 KH |
565 | next-token)) |
566 | ||
c4f268a1 | 567 | (defun opascal-group-start (from-token) |
70492703 | 568 | ;; Returns the token that denotes the start of the ()/[] group. |
c4f268a1 | 569 | (let ((token (opascal-previous-token from-token)) |
70492703 KH |
570 | (token-kind nil)) |
571 | (catch 'done | |
572 | (while token | |
c4f268a1 | 573 | (setq token-kind (opascal-token-kind token)) |
70492703 KH |
574 | (cond |
575 | ;; Skip over nested groups. | |
c4f268a1 | 576 | ((eq 'close-group token-kind) (setq token (opascal-group-start token))) |
70492703 | 577 | ((eq 'open-group token-kind) (throw 'done token))) |
c4f268a1 | 578 | (setq token (opascal-previous-token token))) |
70492703 KH |
579 | ;; Start not found. |
580 | nil))) | |
581 | ||
c4f268a1 | 582 | (defun opascal-group-end (from-token) |
70492703 | 583 | ;; Returns the token that denotes the end of the ()/[] group. |
c4f268a1 | 584 | (let ((token (opascal-next-token from-token)) |
70492703 KH |
585 | (token-kind nil)) |
586 | (catch 'done | |
587 | (while token | |
c4f268a1 | 588 | (setq token-kind (opascal-token-kind token)) |
70492703 KH |
589 | (cond |
590 | ;; Skip over nested groups. | |
c4f268a1 | 591 | ((eq 'open-group token-kind) (setq token (opascal-group-end token))) |
70492703 | 592 | ((eq 'close-group token-kind) (throw 'done token))) |
c4f268a1 | 593 | (setq token (opascal-next-token token))) |
70492703 KH |
594 | ;; end not found. |
595 | nil))) | |
596 | ||
c4f268a1 | 597 | (defun opascal-indent-of (token &optional offset) |
70492703 | 598 | ;; Returns the start column of the token, plus any offset. |
c4f268a1 | 599 | (let ((indent (+ (opascal-column-of (opascal-token-start token)) |
70492703 | 600 | (if offset offset 0)))) |
c4f268a1 SM |
601 | (when opascal-debug |
602 | (opascal-debug-log | |
70492703 KH |
603 | (concat "\n Indent of: %S %S" |
604 | "\n column: %d indent: %d offset: %d") | |
c4f268a1 SM |
605 | token (opascal-token-string token) |
606 | (opascal-column-of (opascal-token-start token)) | |
70492703 KH |
607 | indent (if offset offset 0))) |
608 | indent)) | |
609 | ||
c4f268a1 | 610 | (defun opascal-line-indent-of (from-token &optional offset &rest terminators) |
70492703 KH |
611 | ;; Returns the column of first non-space character on the token's line, plus |
612 | ;; any offset. We also stop if one of the terminators or an open ( or [ is | |
613 | ;; encountered. | |
c4f268a1 | 614 | (let ((token (opascal-previous-token from-token)) |
70492703 KH |
615 | (last-token from-token) |
616 | (kind nil)) | |
617 | (catch 'done | |
618 | (while token | |
c4f268a1 | 619 | (setq kind (opascal-token-kind token)) |
a1506d29 | 620 | (cond |
70492703 | 621 | ;; Skip over ()/[] groups. |
c4f268a1 | 622 | ((eq 'close-group kind) (setq token (opascal-group-start token))) |
70492703 KH |
623 | |
624 | ;; Stop at the beginning of the line or an open group. | |
c4f268a1 | 625 | ((opascal-is kind '(newline open-group)) (throw 'done nil)) |
70492703 KH |
626 | |
627 | ;; Stop at one of the specified terminators. | |
c4f268a1 SM |
628 | ((opascal-is kind terminators) (throw 'done nil))) |
629 | (unless (opascal-is kind opascal-whitespace) (setq last-token token)) | |
630 | (setq token (opascal-previous-token token)))) | |
631 | (opascal-indent-of last-token offset))) | |
70492703 | 632 | |
c4f268a1 SM |
633 | (defun opascal-stmt-line-indent-of (from-token &optional offset) |
634 | ;; Like `opascal-line-indent-of' except is also stops on a use clause, and | |
95c1652d | 635 | ;; colons that precede statements (i.e. case labels). |
c4f268a1 | 636 | (let ((token (opascal-previous-token from-token)) |
95c1652d RB |
637 | (last-token from-token) |
638 | (kind nil)) | |
639 | (catch 'done | |
640 | (while token | |
c4f268a1 | 641 | (setq kind (opascal-token-kind token)) |
a1506d29 | 642 | (cond |
95c1652d | 643 | ((and (eq 'colon kind) |
c4f268a1 SM |
644 | (opascal-is (opascal-token-kind last-token) |
645 | `(,@opascal-block-statements | |
646 | ,@opascal-expr-statements))) | |
95c1652d RB |
647 | ;; We hit a label followed by a statement. Indent to the statement. |
648 | (throw 'done nil)) | |
649 | ||
650 | ;; Skip over ()/[] groups. | |
c4f268a1 | 651 | ((eq 'close-group kind) (setq token (opascal-group-start token))) |
95c1652d | 652 | |
c4f268a1 | 653 | ((opascal-is kind `(newline open-group ,@opascal-use-clauses)) |
95c1652d RB |
654 | ;; Stop at the beginning of the line, an open group, or a use clause |
655 | (throw 'done nil))) | |
c4f268a1 SM |
656 | (unless (opascal-is kind opascal-whitespace) (setq last-token token)) |
657 | (setq token (opascal-previous-token token)))) | |
658 | (opascal-indent-of last-token offset))) | |
70492703 | 659 | |
c4f268a1 | 660 | (defun opascal-open-group-indent (token last-token &optional offset) |
70492703 | 661 | ;; Returns the indent relative to an unmatched ( or [. |
c4f268a1 | 662 | (when (eq 'open-group (opascal-token-kind token)) |
70492703 | 663 | (if last-token |
c4f268a1 | 664 | (opascal-indent-of last-token offset) |
70492703 | 665 | ;; There is nothing following the ( or [. Indent from its line. |
c4f268a1 | 666 | (opascal-stmt-line-indent-of token opascal-indent-level)))) |
70492703 | 667 | |
c4f268a1 | 668 | (defun opascal-composite-type-start (token last-token) |
c05423d4 CY |
669 | ;; Returns true (actually the last-token) if the pair equals (= class), (= |
670 | ;; dispinterface), (= interface), (= object), or (= record), and nil | |
671 | ;; otherwise. | |
c4f268a1 SM |
672 | (if (and (eq 'equals (opascal-token-kind token)) |
673 | (opascal-is (opascal-token-kind last-token) opascal-composite-types)) | |
70492703 KH |
674 | last-token)) |
675 | ||
c4f268a1 | 676 | (defun opascal-is-simple-class-type (at-token limit-token) |
70492703 KH |
677 | ;; True if at-token is the start of a simple class type. E.g. |
678 | ;; class of TClass; | |
679 | ;; class (TBaseClass); | |
680 | ;; class; | |
c4f268a1 | 681 | (when (opascal-is (opascal-token-kind at-token) opascal-class-types) |
70492703 KH |
682 | (catch 'done |
683 | ;; Scan until the semi colon. | |
c4f268a1 | 684 | (let ((token (opascal-next-token at-token)) |
70492703 | 685 | (token-kind nil) |
c4f268a1 SM |
686 | (limit (opascal-token-start limit-token))) |
687 | (while (and token (<= (opascal-token-start token) limit)) | |
688 | (setq token-kind (opascal-token-kind token)) | |
70492703 KH |
689 | (cond |
690 | ;; A semicolon delimits the search. | |
691 | ((eq 'semicolon token-kind) (throw 'done token)) | |
692 | ||
693 | ;; Skip over the inheritance list. | |
c4f268a1 | 694 | ((eq 'open-group token-kind) (setq token (opascal-group-end token))) |
70492703 KH |
695 | |
696 | ;; Only allow "of" and whitespace, and an identifier | |
c4f268a1 | 697 | ((opascal-is token-kind `(of word ,@opascal-whitespace))) |
70492703 KH |
698 | |
699 | ;; Otherwise we are not in a simple class declaration. | |
700 | ((throw 'done nil))) | |
c4f268a1 | 701 | (setq token (opascal-next-token token))))))) |
70492703 | 702 | |
c4f268a1 | 703 | (defun opascal-block-start (from-token &optional stop-on-class) |
70492703 | 704 | ;; Returns the token that denotes the start of the block. |
c4f268a1 | 705 | (let ((token (opascal-previous-token from-token)) |
70492703 KH |
706 | (last-token nil) |
707 | (token-kind nil)) | |
708 | (catch 'done | |
709 | (while token | |
c4f268a1 | 710 | (setq token-kind (opascal-token-kind token)) |
70492703 KH |
711 | (cond |
712 | ;; Skip over nested blocks. | |
c4f268a1 SM |
713 | ((opascal-is token-kind opascal-end-block-statements) |
714 | (setq token (opascal-block-start token))) | |
70492703 KH |
715 | |
716 | ;; Regular block start found. | |
c4f268a1 | 717 | ((opascal-is token-kind opascal-block-statements) |
2c6a779a SS |
718 | (throw 'done |
719 | ;; As a special case, when a "case" block appears | |
720 | ;; within a record declaration (to denote a variant | |
721 | ;; part), the record declaration should be considered | |
722 | ;; the enclosing block. | |
723 | (if (eq 'case token-kind) | |
724 | (let ((enclosing-token | |
c4f268a1 | 725 | (opascal-block-start token |
2c6a779a SS |
726 | 'stop-on-class))) |
727 | (if | |
728 | (eq 'record | |
c4f268a1 | 729 | (opascal-token-kind enclosing-token)) |
2c6a779a SS |
730 | (if stop-on-class |
731 | enclosing-token | |
c4f268a1 | 732 | (opascal-previous-token enclosing-token)) |
2c6a779a SS |
733 | token)) |
734 | token))) | |
70492703 KH |
735 | |
736 | ;; A class/record start also begins a block. | |
c4f268a1 | 737 | ((opascal-composite-type-start token last-token) |
70492703 KH |
738 | (throw 'done (if stop-on-class last-token token))) |
739 | ) | |
c4f268a1 | 740 | (unless (opascal-is token-kind opascal-whitespace) |
70492703 | 741 | (setq last-token token)) |
c4f268a1 | 742 | (setq token (opascal-previous-token token))) |
70492703 KH |
743 | ;; Start not found. |
744 | nil))) | |
745 | ||
c4f268a1 | 746 | (defun opascal-else-start (from-else) |
70492703 | 747 | ;; Returns the token of the if or case statement. |
c4f268a1 | 748 | (let ((token (opascal-previous-token from-else)) |
70492703 | 749 | (token-kind nil) |
e02f48d7 | 750 | (semicolon-count 0)) |
70492703 KH |
751 | (catch 'done |
752 | (while token | |
c4f268a1 | 753 | (setq token-kind (opascal-token-kind token)) |
70492703 KH |
754 | (cond |
755 | ;; Skip over nested groups. | |
c4f268a1 | 756 | ((eq 'close-group token-kind) (setq token (opascal-group-start token))) |
70492703 KH |
757 | |
758 | ;; Skip over any nested blocks. | |
c4f268a1 SM |
759 | ((opascal-is token-kind opascal-end-block-statements) |
760 | (setq token (opascal-block-start token))) | |
70492703 KH |
761 | |
762 | ((eq 'semicolon token-kind) | |
763 | ;; Semicolon means we are looking for an enclosing if, unless we | |
764 | ;; are in a case statement. Keep counts of the semicolons and decide | |
765 | ;; later. | |
766 | (setq semicolon-count (1+ semicolon-count))) | |
767 | ||
768 | ((and (eq 'if token-kind) (= semicolon-count 0)) | |
769 | ;; We only can match an if when there have been no intervening | |
770 | ;; semicolons. | |
771 | (throw 'done token)) | |
772 | ||
773 | ((eq 'case token-kind) | |
774 | ;; We have hit a case statement start. | |
775 | (throw 'done token))) | |
c4f268a1 | 776 | (setq token (opascal-previous-token token))) |
70492703 KH |
777 | ;; No if or case statement found. |
778 | nil))) | |
779 | ||
c4f268a1 | 780 | (defun opascal-comment-content-start (comment) |
70492703 | 781 | ;; Returns the point of the first non-space character in the comment. |
c4f268a1 SM |
782 | (let ((kind (opascal-token-kind comment))) |
783 | (when (opascal-is kind opascal-comments) | |
784 | (opascal-save-excursion | |
785 | (goto-char (+ (opascal-token-start comment) | |
786 | (length (opascal-literal-start-pattern kind)))) | |
787 | (skip-chars-forward opascal-space-chars) | |
70492703 KH |
788 | (point))))) |
789 | ||
c4f268a1 | 790 | (defun opascal-comment-block-start (comment) |
70492703 KH |
791 | ;; Returns the starting comment token of a contiguous // comment block. If |
792 | ;; the comment is multiline (i.e. {...} or (*...*)), the original comment is | |
793 | ;; returned. | |
c4f268a1 | 794 | (if (not (eq 'comment-single-line (opascal-token-kind comment))) |
70492703 KH |
795 | comment |
796 | ;; Scan until we run out of // comments. | |
797 | (let ((prev-comment comment) | |
e02f48d7 | 798 | (start-comment comment)) |
c4f268a1 | 799 | (while (let ((kind (opascal-token-kind prev-comment))) |
70492703 KH |
800 | (cond ((eq kind 'space)) |
801 | ((eq kind 'comment-single-line) | |
802 | (setq start-comment prev-comment)) | |
803 | (t nil))) | |
c4f268a1 | 804 | (setq prev-comment (opascal-previous-token prev-comment))) |
70492703 KH |
805 | start-comment))) |
806 | ||
c4f268a1 | 807 | (defun opascal-comment-block-end (comment) |
70492703 KH |
808 | ;; Returns the end comment token of a contiguous // comment block. If the |
809 | ;; comment is multiline (i.e. {...} or (*...*)), the original comment is | |
810 | ;; returned. | |
c4f268a1 | 811 | (if (not (eq 'comment-single-line (opascal-token-kind comment))) |
70492703 KH |
812 | comment |
813 | ;; Scan until we run out of // comments. | |
814 | (let ((next-comment comment) | |
e02f48d7 | 815 | (end-comment comment)) |
c4f268a1 | 816 | (while (let ((kind (opascal-token-kind next-comment))) |
70492703 KH |
817 | (cond ((eq kind 'space)) |
818 | ((eq kind 'comment-single-line) | |
819 | (setq end-comment next-comment)) | |
820 | (t nil))) | |
c4f268a1 | 821 | (setq next-comment (opascal-next-token next-comment))) |
70492703 KH |
822 | end-comment))) |
823 | ||
c4f268a1 | 824 | (defun opascal-on-first-comment-line (comment) |
70492703 KH |
825 | ;; Returns true if the current point is on the first line of the comment. |
826 | (save-excursion | |
c4f268a1 | 827 | (let ((comment-start (opascal-token-start comment)) |
70492703 KH |
828 | (current-point (point))) |
829 | (goto-char comment-start) | |
830 | (end-of-line) | |
831 | (and (<= comment-start current-point) (<= current-point (point)))))) | |
832 | ||
c4f268a1 | 833 | (defun opascal-comment-indent-of (comment) |
70492703 | 834 | ;; Returns the correct indentation for the comment. |
c4f268a1 | 835 | (let ((start-comment (opascal-comment-block-start comment))) |
70492703 | 836 | (if (and (eq start-comment comment) |
c4f268a1 | 837 | (opascal-on-first-comment-line comment)) |
70492703 | 838 | ;; Indent as a statement. |
c4f268a1 | 839 | (opascal-enclosing-indent-of comment) |
70492703 | 840 | (save-excursion |
c4f268a1 | 841 | (let ((kind (opascal-token-kind comment))) |
70492703 KH |
842 | (beginning-of-line) |
843 | (cond ((eq 'comment-single-line kind) | |
844 | ;; Indent to the first comment in the // block. | |
c4f268a1 | 845 | (opascal-indent-of start-comment)) |
70492703 | 846 | |
c4f268a1 SM |
847 | ((looking-at (concat opascal-leading-spaces-re |
848 | (opascal-literal-stop-pattern kind))) | |
70492703 | 849 | ;; Indent multi-line comment terminators to the comment start. |
c4f268a1 | 850 | (opascal-indent-of comment)) |
70492703 KH |
851 | |
852 | ;; Indent according to the comment's content start. | |
c4f268a1 | 853 | ((opascal-column-of (opascal-comment-content-start comment))))))) |
70492703 KH |
854 | )) |
855 | ||
c4f268a1 | 856 | (defun opascal-is-use-clause-end (at-token last-token last-colon from-kind) |
70492703 | 857 | ;; True if we are after the end of a uses type clause. |
a1506d29 | 858 | (when (and last-token |
70492703 | 859 | (not last-colon) |
c4f268a1 | 860 | (eq 'comma (opascal-token-kind at-token)) |
70492703 KH |
861 | (eq 'semicolon from-kind)) |
862 | ;; Scan for the uses statement, just to be sure. | |
c4f268a1 | 863 | (let ((token (opascal-previous-token at-token)) |
70492703 KH |
864 | (token-kind nil)) |
865 | (catch 'done | |
866 | (while token | |
c4f268a1 SM |
867 | (setq token-kind (opascal-token-kind token)) |
868 | (cond ((opascal-is token-kind opascal-use-clauses) | |
70492703 KH |
869 | (throw 'done t)) |
870 | ||
871 | ;; Whitespace, identifiers, strings, "in" keyword, and commas | |
872 | ;; are allowed in use clauses. | |
c4f268a1 SM |
873 | ((or (opascal-is token-kind '(word comma in newline)) |
874 | (opascal-is token-kind opascal-whitespace) | |
875 | (opascal-is token-kind opascal-strings))) | |
70492703 KH |
876 | |
877 | ;; Nothing else is. | |
878 | ((throw 'done nil))) | |
c4f268a1 | 879 | (setq token (opascal-previous-token token))) |
70492703 KH |
880 | nil)))) |
881 | ||
c4f268a1 | 882 | (defun opascal-is-block-after-expr-statement (token) |
70492703 KH |
883 | ;; Returns true if we have a block token trailing an expression delimiter (of |
884 | ;; presumably an expression statement). | |
c4f268a1 SM |
885 | (when (opascal-is (opascal-token-kind token) opascal-block-statements) |
886 | (let ((previous (opascal-previous-token token)) | |
70492703 KH |
887 | (previous-kind nil)) |
888 | (while (progn | |
c4f268a1 | 889 | (setq previous-kind (opascal-token-kind previous)) |
70492703 | 890 | (eq previous-kind 'space)) |
c4f268a1 SM |
891 | (setq previous (opascal-previous-token previous))) |
892 | (or (opascal-is previous-kind opascal-expr-delimiters) | |
70492703 KH |
893 | (eq previous-kind 'else))))) |
894 | ||
c4f268a1 | 895 | (defun opascal-previous-indent-of (from-token) |
70492703 | 896 | ;; Returns the indentation of the previous statement of the token. |
c4f268a1 | 897 | (let ((token (opascal-previous-token from-token)) |
70492703 | 898 | (token-kind nil) |
c4f268a1 | 899 | (from-kind (opascal-token-kind from-token)) |
70492703 | 900 | (last-colon nil) |
2c6a779a | 901 | (last-of nil) |
70492703 KH |
902 | (last-token nil)) |
903 | (catch 'done | |
904 | (while token | |
c4f268a1 | 905 | (setq token-kind (opascal-token-kind token)) |
70492703 KH |
906 | (cond |
907 | ;; An open ( or [ always is an indent point. | |
908 | ((eq 'open-group token-kind) | |
c4f268a1 | 909 | (throw 'done (opascal-open-group-indent token last-token))) |
70492703 KH |
910 | |
911 | ;; Skip over any ()/[] groups. | |
c4f268a1 | 912 | ((eq 'close-group token-kind) (setq token (opascal-group-start token))) |
70492703 | 913 | |
c4f268a1 SM |
914 | ((opascal-is token-kind opascal-end-block-statements) |
915 | (if (eq 'newline (opascal-token-kind (opascal-previous-token token))) | |
70492703 KH |
916 | ;; We can stop at an end token that is right up against the |
917 | ;; margin. | |
918 | (throw 'done 0) | |
919 | ;; Otherwise, skip over any nested blocks. | |
c4f268a1 | 920 | (setq token (opascal-block-start token)))) |
70492703 KH |
921 | |
922 | ;; Special case: if we encounter a ", word;" then we assume that we | |
923 | ;; are in some kind of uses clause, and thus indent to column 0. This | |
924 | ;; works because no other constructs are known to have that form. | |
925 | ;; This fixes the irritating case of having indents after a uses | |
926 | ;; clause look like: | |
927 | ;; uses | |
928 | ;; someUnit, | |
929 | ;; someOtherUnit; | |
930 | ;; // this should be at column 0! | |
c4f268a1 | 931 | ((opascal-is-use-clause-end token last-token last-colon from-kind) |
70492703 KH |
932 | (throw 'done 0)) |
933 | ||
934 | ;; A previous terminator means we can stop. If we are on a directive, | |
935 | ;; however, then we are not actually encountering a new statement. | |
936 | ((and last-token | |
c4f268a1 SM |
937 | (opascal-is token-kind opascal-previous-terminators) |
938 | (not (opascal-is (opascal-token-kind last-token) | |
939 | opascal-directives))) | |
940 | (throw 'done (opascal-stmt-line-indent-of last-token 0))) | |
70492703 KH |
941 | |
942 | ;; Ignore whitespace. | |
c4f268a1 | 943 | ((opascal-is token-kind opascal-whitespace)) |
70492703 | 944 | |
2c6a779a SS |
945 | ;; Remember any "of" we encounter, since that affects how we |
946 | ;; indent to a case statement within a record declaration | |
947 | ;; (i.e. a variant part). | |
948 | ((eq 'of token-kind) | |
949 | (setq last-of token)) | |
950 | ||
951 | ;; Remember any ':' we encounter (until we reach an "of"), | |
952 | ;; since that affects how we indent to case statements in | |
953 | ;; general. | |
954 | ((eq 'colon token-kind) | |
955 | (unless last-of (setq last-colon token))) | |
70492703 KH |
956 | |
957 | ;; A case statement delimits a previous statement. We indent labels | |
958 | ;; specially. | |
959 | ((eq 'case token-kind) | |
960 | (throw 'done | |
c4f268a1 SM |
961 | (if last-colon (opascal-line-indent-of last-colon) |
962 | (opascal-line-indent-of token opascal-case-label-indent)))) | |
70492703 KH |
963 | |
964 | ;; If we are in a use clause then commas mark an enclosing rather than | |
965 | ;; a previous statement. | |
c4f268a1 | 966 | ((opascal-is token-kind opascal-use-clauses) |
70492703 KH |
967 | (throw 'done |
968 | (if (eq 'comma from-kind) | |
969 | (if last-token | |
970 | ;; Indent to first unit in use clause. | |
c4f268a1 | 971 | (opascal-indent-of last-token) |
70492703 | 972 | ;; Indent from use clause keyword. |
c4f268a1 | 973 | (opascal-line-indent-of token opascal-indent-level)) |
70492703 | 974 | ;; Indent to use clause keyword. |
c4f268a1 | 975 | (opascal-line-indent-of token)))) |
70492703 | 976 | |
06c24636 | 977 | ;; Assembly sections always indent in from the asm keyword. |
a1506d29 | 978 | ((eq token-kind 'asm) |
c4f268a1 | 979 | (throw 'done (opascal-stmt-line-indent-of token opascal-indent-level))) |
06c24636 | 980 | |
70492703 KH |
981 | ;; An enclosing statement delimits a previous statement. |
982 | ;; We try to use the existing indent of the previous statement, | |
983 | ;; otherwise we calculate from the enclosing statement. | |
c4f268a1 | 984 | ((opascal-is token-kind opascal-previous-enclosing-statements) |
06c24636 RB |
985 | (throw 'done (if last-token |
986 | ;; Otherwise indent to the last token | |
c4f268a1 | 987 | (opascal-line-indent-of last-token) |
06c24636 | 988 | ;; Just indent from the enclosing keyword |
c4f268a1 | 989 | (opascal-line-indent-of token opascal-indent-level)))) |
70492703 KH |
990 | |
991 | ;; A class or record declaration also delimits a previous statement. | |
c4f268a1 | 992 | ((opascal-composite-type-start token last-token) |
70492703 KH |
993 | (throw |
994 | 'done | |
c4f268a1 | 995 | (if (opascal-is-simple-class-type last-token from-token) |
70492703 | 996 | ;; c = class; or c = class of T; are previous statements. |
c4f268a1 | 997 | (opascal-line-indent-of token) |
70492703 KH |
998 | ;; Otherwise c = class ... or r = record ... are enclosing |
999 | ;; statements. | |
c4f268a1 | 1000 | (opascal-line-indent-of last-token opascal-indent-level)))) |
70492703 KH |
1001 | |
1002 | ;; We have a definite previous statement delimiter. | |
c4f268a1 SM |
1003 | ((opascal-is token-kind opascal-previous-statements) |
1004 | (throw 'done (opascal-stmt-line-indent-of token 0))) | |
70492703 | 1005 | ) |
c4f268a1 | 1006 | (unless (opascal-is token-kind opascal-whitespace) |
70492703 | 1007 | (setq last-token token)) |
c4f268a1 | 1008 | (setq token (opascal-previous-token token))) |
70492703 KH |
1009 | ;; We ran out of tokens. Indent to column 0. |
1010 | 0))) | |
1011 | ||
c4f268a1 | 1012 | (defun opascal-section-indent-of (section-token) |
70492703 KH |
1013 | ;; Returns the indentation appropriate for begin/var/const/type/label |
1014 | ;; tokens. | |
c4f268a1 | 1015 | (let* ((token (opascal-previous-token section-token)) |
70492703 KH |
1016 | (token-kind nil) |
1017 | (last-token nil) | |
1018 | (nested-block-count 0) | |
1019 | (expr-delimited nil) | |
1020 | (last-terminator nil)) | |
1021 | (catch 'done | |
1022 | (while token | |
c4f268a1 | 1023 | (setq token-kind (opascal-token-kind token)) |
70492703 KH |
1024 | (cond |
1025 | ;; Always stop at unmatched ( or [. | |
1026 | ((eq token-kind 'open-group) | |
c4f268a1 | 1027 | (throw 'done (opascal-open-group-indent token last-token))) |
70492703 KH |
1028 | |
1029 | ;; Skip over any ()/[] groups. | |
c4f268a1 | 1030 | ((eq 'close-group token-kind) (setq token (opascal-group-start token))) |
70492703 | 1031 | |
c4f268a1 SM |
1032 | ((opascal-is token-kind opascal-end-block-statements) |
1033 | (if (eq 'newline (opascal-token-kind (opascal-previous-token token))) | |
70492703 KH |
1034 | ;; We can stop at an end token that is right up against the |
1035 | ;; margin. | |
1036 | (throw 'done 0) | |
1037 | ;; Otherwise, skip over any nested blocks. | |
c4f268a1 | 1038 | (setq token (opascal-block-start token) |
70492703 KH |
1039 | nested-block-count (1+ nested-block-count)))) |
1040 | ||
1041 | ;; Remember if we have encountered any forward routine declarations. | |
1042 | ((eq 'forward token-kind) | |
1043 | (setq nested-block-count (1+ nested-block-count))) | |
1044 | ||
1045 | ;; Mark the completion of a nested routine traversal. | |
c4f268a1 | 1046 | ((and (opascal-is token-kind opascal-routine-statements) |
70492703 KH |
1047 | (> nested-block-count 0)) |
1048 | (setq nested-block-count (1- nested-block-count))) | |
1049 | ||
1050 | ;; Remember if we have encountered any statement terminators. | |
1051 | ((eq 'semicolon token-kind) (setq last-terminator token)) | |
1052 | ||
1053 | ;; Remember if we have encountered any expression delimiters. | |
c4f268a1 | 1054 | ((opascal-is token-kind opascal-expr-delimiters) |
70492703 KH |
1055 | (setq expr-delimited token)) |
1056 | ||
1057 | ;; Enclosing body statements are delimiting. We indent the compound | |
1058 | ;; bodies specially. | |
1059 | ((and (not last-terminator) | |
c4f268a1 | 1060 | (opascal-is token-kind opascal-body-statements)) |
70492703 | 1061 | (throw 'done |
c4f268a1 | 1062 | (opascal-stmt-line-indent-of token opascal-compound-block-indent))) |
70492703 KH |
1063 | |
1064 | ;; An enclosing ":" means a label. | |
1065 | ((and (eq 'colon token-kind) | |
c4f268a1 SM |
1066 | (opascal-is (opascal-token-kind section-token) |
1067 | opascal-block-statements) | |
70492703 KH |
1068 | (not last-terminator) |
1069 | (not expr-delimited) | |
c4f268a1 | 1070 | (not (eq 'equals (opascal-token-kind last-token)))) |
70492703 | 1071 | (throw 'done |
c4f268a1 | 1072 | (opascal-stmt-line-indent-of token opascal-indent-level))) |
70492703 KH |
1073 | |
1074 | ;; Block and mid block tokens are always enclosing | |
c4f268a1 | 1075 | ((opascal-is token-kind opascal-begin-enclosing-tokens) |
70492703 | 1076 | (throw 'done |
c4f268a1 | 1077 | (opascal-stmt-line-indent-of token opascal-indent-level))) |
70492703 KH |
1078 | |
1079 | ;; Declaration sections and routines are delimiters, unless they | |
1080 | ;; are part of a nested routine. | |
c4f268a1 | 1081 | ((and (opascal-is token-kind opascal-decl-delimiters) |
70492703 | 1082 | (= 0 nested-block-count)) |
c4f268a1 | 1083 | (throw 'done (opascal-line-indent-of token 0))) |
70492703 KH |
1084 | |
1085 | ;; Unit statements mean we indent right to the left. | |
c4f268a1 | 1086 | ((opascal-is token-kind opascal-unit-statements) (throw 'done 0)) |
70492703 | 1087 | ) |
c4f268a1 | 1088 | (unless (opascal-is token-kind opascal-whitespace) |
70492703 | 1089 | (setq last-token token)) |
c4f268a1 | 1090 | (setq token (opascal-previous-token token))) |
70492703 KH |
1091 | ;; We ran out of tokens. Indent to column 0. |
1092 | 0))) | |
1093 | ||
c4f268a1 | 1094 | (defun opascal-enclosing-indent-of (from-token) |
70492703 | 1095 | ;; Returns the indentation offset from the enclosing statement of the token. |
c4f268a1 SM |
1096 | (let ((token (opascal-previous-token from-token)) |
1097 | (from-kind (opascal-token-kind from-token)) | |
70492703 KH |
1098 | (token-kind nil) |
1099 | (stmt-start nil) | |
a1506d29 | 1100 | (last-token nil) |
70492703 KH |
1101 | (equals-encountered nil) |
1102 | (before-equals nil) | |
1103 | (expr-delimited nil)) | |
1104 | (catch 'done | |
1105 | (while token | |
c4f268a1 | 1106 | (setq token-kind (opascal-token-kind token)) |
70492703 KH |
1107 | (cond |
1108 | ;; An open ( or [ always is an indent point. | |
1109 | ((eq 'open-group token-kind) | |
1110 | (throw 'done | |
c4f268a1 | 1111 | (opascal-open-group-indent |
70492703 | 1112 | token last-token |
c4f268a1 | 1113 | (if (opascal-is from-kind opascal-binary-ops) |
70492703 KH |
1114 | ;; Keep binary operations aligned with the open group. |
1115 | 0 | |
c4f268a1 | 1116 | opascal-indent-level)))) |
70492703 KH |
1117 | |
1118 | ;; Skip over any ()/[] groups. | |
c4f268a1 | 1119 | ((eq 'close-group token-kind) (setq token (opascal-group-start token))) |
70492703 KH |
1120 | |
1121 | ;; Skip over any nested blocks. | |
c4f268a1 SM |
1122 | ((opascal-is token-kind opascal-end-block-statements) |
1123 | (setq token (opascal-block-start token))) | |
70492703 KH |
1124 | |
1125 | ;; An expression delimiter affects indentation depending on whether | |
1126 | ;; the point is before or after it. Remember that we encountered one. | |
1127 | ;; Also remember the last encountered token, since if it exists it | |
1128 | ;; should be the actual indent point. | |
c4f268a1 | 1129 | ((opascal-is token-kind opascal-expr-delimiters) |
70492703 KH |
1130 | (setq expr-delimited token stmt-start last-token)) |
1131 | ||
1132 | ;; With a non-delimited expression statement we indent after the | |
1133 | ;; statement's keyword, unless we are on the delimiter itself. | |
1134 | ((and (not expr-delimited) | |
c4f268a1 | 1135 | (opascal-is token-kind opascal-expr-statements)) |
70492703 | 1136 | (throw 'done |
c4f268a1 | 1137 | (cond ((opascal-is from-kind opascal-expr-delimiters) |
70492703 | 1138 | ;; We are indenting a delimiter. Indent to the statement. |
c4f268a1 | 1139 | (opascal-stmt-line-indent-of token 0)) |
70492703 | 1140 | |
c4f268a1 | 1141 | ((and last-token (opascal-is from-kind opascal-binary-ops)) |
70492703 | 1142 | ;; Align binary ops with the expression. |
c4f268a1 | 1143 | (opascal-indent-of last-token)) |
70492703 KH |
1144 | |
1145 | (last-token | |
1146 | ;; Indent in from the expression. | |
c4f268a1 | 1147 | (opascal-indent-of last-token opascal-indent-level)) |
70492703 KH |
1148 | |
1149 | ;; Indent in from the statement's keyword. | |
c4f268a1 | 1150 | ((opascal-indent-of token opascal-indent-level))))) |
70492703 KH |
1151 | |
1152 | ;; A delimited case statement indents the label according to | |
1153 | ;; a special rule. | |
1154 | ((eq 'case token-kind) | |
1155 | (throw 'done | |
1156 | (if stmt-start | |
1157 | ;; We are not actually indenting to the case statement, | |
1158 | ;; but are within a label expression. | |
c4f268a1 SM |
1159 | (opascal-stmt-line-indent-of |
1160 | stmt-start opascal-indent-level) | |
70492703 | 1161 | ;; Indent from the case keyword. |
c4f268a1 SM |
1162 | (opascal-stmt-line-indent-of |
1163 | token opascal-case-label-indent)))) | |
70492703 KH |
1164 | |
1165 | ;; Body expression statements are enclosing. Indent from the | |
1166 | ;; statement's keyword, unless we have a non-block statement following | |
1167 | ;; it. | |
c4f268a1 | 1168 | ((opascal-is token-kind opascal-body-expr-statements) |
70492703 | 1169 | (throw 'done |
c4f268a1 SM |
1170 | (opascal-stmt-line-indent-of |
1171 | (or stmt-start token) opascal-indent-level))) | |
70492703 KH |
1172 | |
1173 | ;; An else statement is enclosing, but it doesn't have an expression. | |
1174 | ;; Thus we take into account last-token instead of stmt-start. | |
1175 | ((eq 'else token-kind) | |
c4f268a1 SM |
1176 | (throw 'done (opascal-stmt-line-indent-of |
1177 | (or last-token token) opascal-indent-level))) | |
70492703 KH |
1178 | |
1179 | ;; We indent relative to an enclosing declaration section. | |
c4f268a1 SM |
1180 | ((opascal-is token-kind opascal-decl-sections) |
1181 | (throw 'done (opascal-indent-of (if last-token last-token token) | |
1182 | opascal-indent-level))) | |
70492703 KH |
1183 | |
1184 | ;; In unit sections we indent right to the left. | |
c4f268a1 | 1185 | ((opascal-is token-kind opascal-unit-sections) |
c05423d4 CY |
1186 | (throw 'done |
1187 | ;; Handle specially the case of "interface", which can be used | |
1188 | ;; to start either a unit section or an interface definition. | |
c4f268a1 | 1189 | (if (opascal-is token-kind opascal-interface-types) |
c05423d4 CY |
1190 | (progn |
1191 | ;; Find the previous non-whitespace token. | |
1192 | (while (progn | |
1193 | (setq last-token token | |
c4f268a1 SM |
1194 | token (opascal-previous-token token) |
1195 | token-kind (opascal-token-kind token)) | |
c05423d4 | 1196 | (and token |
c4f268a1 SM |
1197 | (opascal-is token-kind |
1198 | opascal-whitespace)))) | |
c05423d4 CY |
1199 | ;; If this token is an equals sign, "interface" is being |
1200 | ;; used to start an interface definition and we should | |
1201 | ;; treat it as a composite type; otherwise, we should | |
1202 | ;; consider it the start of a unit section. | |
1203 | (if (and token (eq token-kind 'equals)) | |
c4f268a1 SM |
1204 | (opascal-line-indent-of last-token |
1205 | opascal-indent-level) | |
c05423d4 CY |
1206 | 0)) |
1207 | 0))) | |
70492703 KH |
1208 | |
1209 | ;; A previous terminator means we can stop. | |
c4f268a1 | 1210 | ((opascal-is token-kind opascal-previous-terminators) |
70492703 KH |
1211 | (throw 'done |
1212 | (cond ((and last-token | |
1213 | (eq 'comma token-kind) | |
c4f268a1 | 1214 | (opascal-is from-kind opascal-binary-ops)) |
70492703 | 1215 | ;; Align binary ops with the expression. |
c4f268a1 | 1216 | (opascal-indent-of last-token)) |
70492703 KH |
1217 | |
1218 | (last-token | |
1219 | ;; Indent in from the expression. | |
c4f268a1 | 1220 | (opascal-indent-of last-token opascal-indent-level)) |
70492703 | 1221 | |
5a89f0a7 | 1222 | ;; No enclosing expression; use the previous statement's |
70492703 | 1223 | ;; indent. |
c4f268a1 | 1224 | ((opascal-previous-indent-of token))))) |
70492703 KH |
1225 | |
1226 | ;; A block statement after an expression delimiter has its start | |
1227 | ;; column as the expression statement. E.g. | |
1228 | ;; if (a = b) | |
1229 | ;; and (a != c) then begin | |
1230 | ;; //... | |
1231 | ;; end; | |
1232 | ;; Remember it for when we encounter the expression statement start. | |
c4f268a1 | 1233 | ((opascal-is-block-after-expr-statement token) |
70492703 | 1234 | (throw 'done |
c4f268a1 | 1235 | (cond (last-token (opascal-indent-of last-token opascal-indent-level)) |
70492703 | 1236 | |
c4f268a1 | 1237 | ((+ (opascal-section-indent-of token) opascal-indent-level))))) |
70492703 | 1238 | |
06c24636 | 1239 | ;; Assembly sections always indent in from the asm keyword. |
a1506d29 | 1240 | ((eq token-kind 'asm) |
c4f268a1 | 1241 | (throw 'done (opascal-stmt-line-indent-of token opascal-indent-level))) |
06c24636 | 1242 | |
70492703 | 1243 | ;; Stop at an enclosing statement and indent from it. |
c4f268a1 SM |
1244 | ((opascal-is token-kind opascal-enclosing-statements) |
1245 | (throw 'done (opascal-stmt-line-indent-of | |
1246 | (or last-token token) opascal-indent-level))) | |
70492703 KH |
1247 | |
1248 | ;; A class/record declaration is also enclosing. | |
c4f268a1 | 1249 | ((opascal-composite-type-start token last-token) |
70492703 | 1250 | (throw 'done |
c4f268a1 | 1251 | (opascal-line-indent-of last-token opascal-indent-level))) |
70492703 KH |
1252 | |
1253 | ;; A ":" we indent relative to its line beginning. If we are in a | |
1254 | ;; parameter list, then stop also if we hit a ";". | |
1255 | ((and (eq token-kind 'colon) | |
1256 | (not expr-delimited) | |
c4f268a1 | 1257 | (not (opascal-is from-kind opascal-expr-delimiters)) |
70492703 KH |
1258 | (not equals-encountered) |
1259 | (not (eq from-kind 'equals))) | |
1260 | (throw 'done | |
1261 | (if last-token | |
c4f268a1 SM |
1262 | (opascal-indent-of last-token opascal-indent-level) |
1263 | (opascal-line-indent-of token opascal-indent-level 'semicolon)))) | |
70492703 KH |
1264 | |
1265 | ;; If the ":" was not processed above and we have token after the "=", | |
1266 | ;; then indent from the "=". Ignore :=, however. | |
1267 | ((and (eq token-kind 'colon) equals-encountered before-equals) | |
1268 | (cond | |
1269 | ;; Ignore binary ops for now. It would do, for example: | |
1270 | ;; val := 1 + 2 | |
1271 | ;; + 3; | |
1272 | ;; which is good, but also | |
1273 | ;; val := Foo | |
1274 | ;; (foo, args) | |
1275 | ;; + 2; | |
1276 | ;; which doesn't look right. | |
1277 | ;;;; Align binary ops with the before token. | |
c4f268a1 SM |
1278 | ;;((opascal-is from-kind opascal-binary-ops) |
1279 | ;;(throw 'done (opascal-indent-of before-equals 0))) | |
70492703 KH |
1280 | |
1281 | ;; Assignments (:=) we skip over to get a normal indent. | |
c4f268a1 | 1282 | ((eq (opascal-token-kind last-token) 'equals)) |
70492703 KH |
1283 | |
1284 | ;; Otherwise indent in from the equals. | |
a1506d29 | 1285 | ((throw 'done |
c4f268a1 | 1286 | (opascal-indent-of before-equals opascal-indent-level))))) |
70492703 KH |
1287 | |
1288 | ;; Remember any "=" we encounter if it has not already been processed. | |
a1506d29 | 1289 | ((eq token-kind 'equals) |
70492703 KH |
1290 | (setq equals-encountered token |
1291 | before-equals last-token)) | |
1292 | ) | |
c4f268a1 | 1293 | (unless (opascal-is token-kind opascal-whitespace) |
70492703 | 1294 | (setq last-token token)) |
c4f268a1 | 1295 | (setq token (opascal-previous-token token))) |
70492703 KH |
1296 | ;; We ran out of tokens. Indent to column 0. |
1297 | 0))) | |
1298 | ||
c4f268a1 | 1299 | (defun opascal-corrected-indentation () |
70492703 | 1300 | ;; Returns the corrected indentation for the current line. |
c4f268a1 SM |
1301 | (opascal-save-excursion |
1302 | (opascal-progress-start) | |
70492703 KH |
1303 | ;; Move to the first token on the line. |
1304 | (beginning-of-line) | |
c4f268a1 SM |
1305 | (skip-chars-forward opascal-space-chars) |
1306 | (let* ((token (opascal-current-token)) | |
1307 | (token-kind (opascal-token-kind token)) | |
70492703 KH |
1308 | (indent |
1309 | (cond ((eq 'close-group token-kind) | |
1310 | ;; Indent to the matching start ( or [. | |
c4f268a1 | 1311 | (opascal-indent-of (opascal-group-start token))) |
70492703 | 1312 | |
c4f268a1 | 1313 | ((opascal-is token-kind opascal-unit-statements) 0) |
70492703 | 1314 | |
c4f268a1 | 1315 | ((opascal-is token-kind opascal-comments) |
70492703 | 1316 | ;; In a comment. |
c4f268a1 | 1317 | (opascal-comment-indent-of token)) |
70492703 | 1318 | |
c4f268a1 | 1319 | ((opascal-is token-kind opascal-decl-matchers) |
70492703 | 1320 | ;; Use a previous section/routine's indent. |
c4f268a1 | 1321 | (opascal-section-indent-of token)) |
70492703 | 1322 | |
c4f268a1 | 1323 | ((opascal-is token-kind opascal-match-block-statements) |
70492703 | 1324 | ;; Use the block's indentation. |
a1506d29 | 1325 | (let ((block-start |
c4f268a1 | 1326 | (opascal-block-start token 'stop-on-class))) |
70492703 KH |
1327 | (cond |
1328 | ;; When trailing a body statement, indent to | |
1329 | ;; the statement's keyword. | |
c4f268a1 SM |
1330 | ((opascal-is-block-after-expr-statement block-start) |
1331 | (opascal-section-indent-of block-start)) | |
70492703 KH |
1332 | |
1333 | ;; Otherwise just indent to the block start. | |
c4f268a1 | 1334 | ((opascal-stmt-line-indent-of block-start 0))))) |
70492703 KH |
1335 | |
1336 | ((eq 'else token-kind) | |
1337 | ;; Find the start of the if or case statement. | |
c4f268a1 | 1338 | (opascal-stmt-line-indent-of (opascal-else-start token) 0)) |
70492703 KH |
1339 | |
1340 | ;; Otherwise indent in from enclosing statement. | |
c4f268a1 SM |
1341 | ((opascal-enclosing-indent-of |
1342 | (if token token (opascal-token-at (1- (point))))))))) | |
1343 | (opascal-progress-done) | |
70492703 KH |
1344 | indent))) |
1345 | ||
c4f268a1 | 1346 | (defun opascal-indent-line () |
5ba5fb81 JB |
1347 | "Indent the current line according to the current language construct. |
1348 | If before the indent, the point is moved to the indent." | |
70492703 | 1349 | (interactive) |
c4f268a1 | 1350 | (save-match-data |
70492703 | 1351 | (let ((marked-point (point-marker)) ; Maintain our position reliably. |
70492703 KH |
1352 | (line-start nil) |
1353 | (old-indent 0) | |
1354 | (new-indent 0)) | |
1355 | (beginning-of-line) | |
1356 | (setq line-start (point)) | |
c4f268a1 | 1357 | (skip-chars-forward opascal-space-chars) |
70492703 | 1358 | (setq old-indent (current-column)) |
c4f268a1 | 1359 | (setq new-indent (opascal-corrected-indentation)) |
70492703 KH |
1360 | (if (< marked-point (point)) |
1361 | ;; If before the indent column, then move to it. | |
1362 | (set-marker marked-point (point))) | |
1363 | ;; Advance our marked point after inserted spaces. | |
1364 | (set-marker-insertion-type marked-point t) | |
1365 | (when (/= old-indent new-indent) | |
1366 | (delete-region line-start (point)) | |
759570c0 | 1367 | (insert (make-string new-indent ?\s))) |
70492703 KH |
1368 | (goto-char marked-point) |
1369 | (set-marker marked-point nil)))) | |
1370 | ||
c4f268a1 SM |
1371 | (defvar opascal-mode-abbrev-table nil |
1372 | "Abbrev table in use in OPascal mode buffers.") | |
1373 | (define-abbrev-table 'opascal-mode-abbrev-table ()) | |
70492703 | 1374 | |
c4f268a1 | 1375 | (defmacro opascal-ensure-buffer (buffer-var buffer-name) |
70492703 KH |
1376 | ;; Ensures there exists a buffer of the specified name in the specified |
1377 | ;; variable. | |
1378 | `(when (not (buffer-live-p ,buffer-var)) | |
1379 | (setq ,buffer-var (get-buffer-create ,buffer-name)))) | |
1380 | ||
c4f268a1 | 1381 | (defun opascal-log-msg (to-buffer the-msg) |
70492703 KH |
1382 | ;; Writes a message to the end of the specified buffer. |
1383 | (with-current-buffer to-buffer | |
1384 | (save-selected-window | |
1385 | (switch-to-buffer-other-window to-buffer) | |
1386 | (goto-char (point-max)) | |
1902b5b6 | 1387 | (set-window-point (get-buffer-window to-buffer) (point)) |
70492703 KH |
1388 | (insert the-msg)))) |
1389 | ||
1390 | ;; Debugging helpers: | |
1391 | ||
c4f268a1 SM |
1392 | (defvar opascal-debug-buffer nil |
1393 | "Buffer to write OPascal mode debug messages to. Created on demand.") | |
70492703 | 1394 | |
c4f268a1 | 1395 | (defun opascal-debug-log (format-string &rest args) |
70492703 | 1396 | ;; Writes a message to the log buffer. |
c4f268a1 SM |
1397 | (when opascal-debug |
1398 | (opascal-ensure-buffer opascal-debug-buffer "*OPascal Debug Log*") | |
1399 | (opascal-log-msg opascal-debug-buffer | |
70492703 KH |
1400 | (concat (format-time-string "%H:%M:%S " (current-time)) |
1401 | (apply #'format (cons format-string args)) | |
1402 | "\n")))) | |
1403 | ||
c4f268a1 SM |
1404 | (defun opascal-debug-token-string (token) |
1405 | (let* ((image (opascal-token-string token)) | |
70492703 KH |
1406 | (has-newline (string-match "^\\([^\n]*\\)\n\\(.+\\)?$" image))) |
1407 | (when has-newline | |
1408 | (setq image (concat (match-string 1 image) | |
1409 | (if (match-beginning 2) "...")))) | |
1410 | image)) | |
1411 | ||
c4f268a1 | 1412 | (defun opascal-debug-show-current-token () |
70492703 | 1413 | (interactive) |
c4f268a1 SM |
1414 | (let ((token (opascal-current-token))) |
1415 | (opascal-debug-log "Token: %S %S" token (opascal-debug-token-string token)))) | |
70492703 | 1416 | |
c4f268a1 | 1417 | (defun opascal-debug-goto-point (p) |
70492703 KH |
1418 | (interactive "NGoto char: ") |
1419 | (goto-char p)) | |
1420 | ||
c4f268a1 | 1421 | (defun opascal-debug-goto-next-token () |
70492703 | 1422 | (interactive) |
c4f268a1 | 1423 | (goto-char (opascal-token-start (opascal-next-token (opascal-current-token))))) |
70492703 | 1424 | |
c4f268a1 | 1425 | (defun opascal-debug-goto-previous-token () |
70492703 KH |
1426 | (interactive) |
1427 | (goto-char | |
c4f268a1 | 1428 | (opascal-token-start (opascal-previous-token (opascal-current-token))))) |
70492703 | 1429 | |
c4f268a1 | 1430 | (defun opascal-debug-show-current-string (from to) |
70492703 | 1431 | (interactive "r") |
c4f268a1 | 1432 | (opascal-debug-log "String: %S" (buffer-substring from to))) |
70492703 | 1433 | |
c4f268a1 | 1434 | (defun opascal-debug-tokenize-region (from to) |
70492703 | 1435 | (interactive) |
c4f268a1 SM |
1436 | (opascal-save-excursion |
1437 | (opascal-progress-start) | |
70492703 KH |
1438 | (goto-char from) |
1439 | (while (< (point) to) | |
c4f268a1 SM |
1440 | (goto-char (opascal-token-end (opascal-current-token))) |
1441 | (opascal-step-progress (point) "Tokenizing" opascal-scanning-progress-step)) | |
1442 | (opascal-progress-done "Tokenizing done"))) | |
70492703 | 1443 | |
c4f268a1 | 1444 | (defun opascal-debug-tokenize-buffer () |
70492703 | 1445 | (interactive) |
c4f268a1 | 1446 | (opascal-debug-tokenize-region (point-min) (point-max))) |
70492703 | 1447 | |
c4f268a1 | 1448 | (defun opascal-debug-tokenize-window () |
70492703 | 1449 | (interactive) |
c4f268a1 | 1450 | (opascal-debug-tokenize-region (window-start) (window-end))) |
70492703 | 1451 | |
c4f268a1 SM |
1452 | |
1453 | (defun opascal-tab () | |
de6a923b GM |
1454 | "Indent the region, if Transient Mark mode is on and the region is active. |
1455 | Otherwise, indent the current line or insert a TAB, depending on the | |
c4f268a1 | 1456 | value of `opascal-tab-always-indents' and the current line position." |
70492703 | 1457 | (interactive) |
07db5857 SS |
1458 | (cond ((use-region-p) |
1459 | ;; If Transient Mark mode is enabled and the region is active, indent | |
1460 | ;; the entire region. | |
1461 | (indent-region (region-beginning) (region-end))) | |
c4f268a1 SM |
1462 | ((or opascal-tab-always-indents |
1463 | (save-excursion (skip-chars-backward opascal-space-chars) (bolp))) | |
07db5857 SS |
1464 | ;; Otherwise, if we are configured always to indent (regardless of the |
1465 | ;; point's position in the line) or we are before the first non-space | |
1466 | ;; character on the line, indent the line. | |
c4f268a1 | 1467 | (opascal-indent-line)) |
07db5857 SS |
1468 | (t |
1469 | ;; Otherwise, insert a tab character. | |
1470 | (insert "\t")))) | |
70492703 | 1471 | |
de6a923b | 1472 | (make-obsolete 'opascal-tab 'indent-for-tab-command "24.4") |
70492703 | 1473 | |
c4f268a1 | 1474 | (defun opascal-is-directory (path) |
70492703 KH |
1475 | ;; True if the specified path is an existing directory. |
1476 | (let ((attributes (file-attributes path))) | |
1477 | (and attributes (car attributes)))) | |
1478 | ||
c4f268a1 | 1479 | (defun opascal-is-file (path) |
70492703 KH |
1480 | ;; True if the specified file exists as a file. |
1481 | (let ((attributes (file-attributes path))) | |
1482 | (and attributes (null (car attributes))))) | |
1483 | ||
c4f268a1 | 1484 | (defun opascal-search-directory (unit dir &optional recurse) |
70492703 KH |
1485 | ;; Searches for the unit in the specified directory. If recurse is true, then |
1486 | ;; the directory is recursively searched. File name comparison is done in a | |
1487 | ;; case insensitive manner. | |
c4f268a1 | 1488 | (when (opascal-is-directory dir) |
70492703 KH |
1489 | (let ((files (directory-files dir)) |
1490 | (unit-file (downcase unit))) | |
1491 | (catch 'done | |
1492 | ;; Search for the file. | |
c4f268a1 SM |
1493 | (dolist (file files) |
1494 | (let ((path (concat dir "/" file))) | |
1495 | (if (and (string= unit-file (downcase file)) | |
1496 | (opascal-is-file path)) | |
1497 | (throw 'done path)))) | |
70492703 KH |
1498 | |
1499 | ;; Not found. Search subdirectories. | |
1500 | (when recurse | |
c4f268a1 SM |
1501 | (dolist (subdir files) |
1502 | (unless (member subdir '("." "..")) | |
1503 | (let ((path (opascal-search-directory | |
1504 | unit (concat dir "/" subdir) recurse))) | |
1505 | (if path (throw 'done path)))))) | |
70492703 KH |
1506 | |
1507 | ;; Not found. | |
1508 | nil)))) | |
1509 | ||
1510 | ||
c4f268a1 | 1511 | (defun opascal-find-unit-in-directory (unit dir) |
70492703 KH |
1512 | ;; Searches for the unit in the specified directory. If the directory ends |
1513 | ;; in \"...\", then it is recursively searched. | |
1514 | (let ((dir-name dir) | |
1515 | (recurse nil)) | |
1516 | ;; Check if we need to recursively search the directory. | |
1517 | (if (string-match "^\\(.+\\)\\.\\.\\.$" dir-name) | |
1518 | (setq dir-name (match-string 1 dir-name) | |
1519 | recurse t)) | |
1520 | ;; Ensure the trailing slash is removed. | |
1521 | (if (string-match "^\\(.+\\)[\\\\/]$" dir-name) | |
1522 | (setq dir-name (match-string 1 dir-name))) | |
c4f268a1 | 1523 | (opascal-search-directory unit dir-name recurse))) |
70492703 | 1524 | |
c4f268a1 SM |
1525 | (defun opascal-find-unit-file (unit) |
1526 | ;; Finds the specified opascal source file according to `opascal-search-path'. | |
70492703 KH |
1527 | ;; If found, the full path is returned, otherwise nil is returned. |
1528 | (catch 'done | |
c4f268a1 SM |
1529 | (cond ((null opascal-search-path) |
1530 | (opascal-find-unit-in-directory unit ".")) | |
70492703 | 1531 | |
c4f268a1 SM |
1532 | ((stringp opascal-search-path) |
1533 | (opascal-find-unit-in-directory unit opascal-search-path)) | |
70492703 | 1534 | |
c4f268a1 SM |
1535 | ((dolist (dir opascal-search-path) |
1536 | (let ((file (opascal-find-unit-in-directory unit dir))) | |
1537 | (if file (throw 'done file)))))) | |
70492703 KH |
1538 | nil)) |
1539 | ||
c4f268a1 SM |
1540 | (defun opascal-find-unit (unit) |
1541 | "Find the specified OPascal source file according to `opascal-search-path'. | |
5ba5fb81 | 1542 | If no extension is specified, .pas is assumed. Creates a buffer for the unit." |
c4f268a1 | 1543 | (interactive "sOPascal unit name: ") |
70492703 KH |
1544 | (let* ((unit-file (if (string-match "^\\(.*\\)\\.[a-z]+$" unit) |
1545 | unit | |
1546 | (concat unit ".pas"))) | |
c4f268a1 | 1547 | (file (opascal-find-unit-file unit-file))) |
70492703 KH |
1548 | (if (null file) |
1549 | (error "unit not found: %s" unit-file) | |
1550 | (find-file file) | |
c4f268a1 SM |
1551 | (if (not (derived-mode-p 'opascal-mode)) |
1552 | (opascal-mode))) | |
70492703 KH |
1553 | file)) |
1554 | ||
c4f268a1 | 1555 | (defun opascal-find-current-def () |
70492703 KH |
1556 | "Find the definition of the identifier under the current point." |
1557 | (interactive) | |
c4f268a1 | 1558 | (error "opascal-find-current-def: not implemented yet")) |
70492703 | 1559 | |
c4f268a1 | 1560 | (defun opascal-find-current-xdef () |
70492703 KH |
1561 | "Find the definition of the identifier under the current point, searching |
1562 | in external units if necessary (as listed in the current unit's use clause). | |
1563 | The set of directories to search for a unit is specified by the global variable | |
c4f268a1 | 1564 | `opascal-search-path'." |
70492703 | 1565 | (interactive) |
c4f268a1 | 1566 | (error "opascal-find-current-xdef: not implemented yet")) |
70492703 | 1567 | |
c4f268a1 | 1568 | (defun opascal-find-current-body () |
70492703 KH |
1569 | "Find the body of the identifier under the current point, assuming |
1570 | it is a routine." | |
1571 | (interactive) | |
c4f268a1 | 1572 | (error "opascal-find-current-body: not implemented yet")) |
70492703 | 1573 | |
c4f268a1 | 1574 | (defun opascal-fill-comment () |
5ba5fb81 | 1575 | "Fill the text of the current comment, according to `fill-column'. |
70492703 KH |
1576 | An error is raised if not in a comment." |
1577 | (interactive) | |
1578 | (save-excursion | |
5b01aef2 | 1579 | (save-restriction |
c4f268a1 SM |
1580 | (let* ((comment (opascal-current-token)) |
1581 | (comment-kind (opascal-token-kind comment))) | |
1582 | (if (not (opascal-is comment-kind opascal-comments)) | |
70492703 | 1583 | (error "Not in a comment") |
c4f268a1 SM |
1584 | (let* ((start-comment (opascal-comment-block-start comment)) |
1585 | (end-comment (opascal-comment-block-end comment)) | |
1693b06a | 1586 | ;; FIXME: Don't abuse global variables like `comment-end/start'. |
c4f268a1 SM |
1587 | (comment-start (opascal-token-start start-comment)) |
1588 | (comment-end (opascal-token-end end-comment)) | |
1589 | (content-start (opascal-comment-content-start start-comment)) | |
1590 | (content-indent (opascal-column-of content-start)) | |
759570c0 | 1591 | (content-prefix (make-string content-indent ?\s)) |
c4f268a1 | 1592 | (content-prefix-re opascal-leading-spaces-re) |
70492703 KH |
1593 | (p nil) |
1594 | (marked-point (point-marker))) ; Maintain our position reliably. | |
1595 | (when (eq 'comment-single-line comment-kind) | |
1596 | ;; // style comments need more work. | |
1597 | (setq content-prefix | |
c4f268a1 | 1598 | (let ((comment-indent (opascal-column-of comment-start))) |
759570c0 | 1599 | (concat (make-string comment-indent ?\s) "//" |
70492703 | 1600 | (make-string (- content-indent comment-indent 2) |
759570c0 | 1601 | ?\s))) |
c4f268a1 | 1602 | content-prefix-re (concat opascal-leading-spaces-re |
70492703 | 1603 | "//" |
c4f268a1 SM |
1604 | opascal-spaces-re) |
1605 | comment-end (if (opascal-is-literal-end comment-end) | |
70492703 KH |
1606 | ;; Don't include the trailing newline. |
1607 | (1- comment-end) | |
1608 | comment-end))) | |
1609 | ||
1610 | ;; Advance our marked point after inserted spaces. | |
1611 | (set-marker-insertion-type marked-point t) | |
1612 | ||
1613 | ;; Ensure we can modify the buffer | |
1614 | (goto-char content-start) | |
1615 | (insert " ") | |
1616 | (delete-char -1) | |
1617 | ||
1618 | (narrow-to-region content-start comment-end) | |
1619 | ||
1620 | ;; Strip off the comment prefixes | |
1621 | (setq p (point-min)) | |
1622 | (while (when (< p (point-max)) | |
1623 | (goto-char p) | |
1624 | (re-search-forward content-prefix-re nil t)) | |
1625 | (replace-match "" nil nil) | |
1626 | (setq p (1+ (point)))) | |
1627 | ||
1628 | ;; add an extra line to prevent the fill from doing it for us. | |
1629 | (goto-char (point-max)) | |
1630 | (insert "\n") | |
1631 | ||
1632 | ;; Fill the comment contents. | |
1633 | (let ((fill-column (- fill-column content-indent))) | |
1634 | (fill-region (point-min) (point-max))) | |
1635 | ||
1636 | (goto-char (point-max)) | |
1637 | (delete-char -1) | |
1638 | ||
1639 | ;; Restore comment prefixes. | |
1640 | (goto-char (point-min)) | |
1641 | (end-of-line) ; Don't reset the first line. | |
1642 | (setq p (point)) | |
1643 | (while (when (< p (point-max)) | |
1644 | (goto-char p) | |
1645 | (re-search-forward "^" nil t)) | |
1646 | (replace-match content-prefix nil nil) | |
1647 | (setq p (1+ (point)))) | |
1648 | ||
1649 | (setq comment-end (point-max)) | |
1650 | (widen) | |
1651 | ||
1652 | ;; Restore our position | |
1653 | (goto-char marked-point) | |
1693b06a | 1654 | (set-marker marked-point nil))))))) |
70492703 | 1655 | |
c4f268a1 | 1656 | (defun opascal-new-comment-line () |
5ba5fb81 JB |
1657 | "If in a // comment, do a newline, indented such that one is still in the |
1658 | comment block. If not in a // comment, just does a normal newline." | |
70492703 | 1659 | (interactive) |
c4f268a1 SM |
1660 | (let ((comment (opascal-current-token))) |
1661 | (if (not (eq 'comment-single-line (opascal-token-kind comment))) | |
70492703 | 1662 | ;; Not in a // comment. Just do the normal newline. |
c4f268a1 SM |
1663 | (newline) |
1664 | (let* ((start-comment (opascal-comment-block-start comment)) | |
1665 | (comment-start (opascal-token-start start-comment)) | |
1666 | (content-start (opascal-comment-content-start start-comment)) | |
70492703 | 1667 | (prefix |
c4f268a1 | 1668 | (concat (make-string (opascal-column-of comment-start) ?\s) "//" |
759570c0 | 1669 | (make-string (- content-start comment-start 2) ?\s)))) |
70492703 | 1670 | (delete-horizontal-space) |
c4f268a1 | 1671 | (insert "\n" prefix))))) |
70492703 | 1672 | |
c4f268a1 | 1673 | (defun opascal-match-token (token limit) |
70492703 KH |
1674 | ;; Sets the match region used by (match-string 0) and friends to the token's |
1675 | ;; region. Sets the current point to the end of the token (or limit). | |
1676 | (set-match-data nil) | |
1677 | (if token | |
c4f268a1 SM |
1678 | (let ((end (min (opascal-token-end token) limit))) |
1679 | (set-match-data (list (opascal-token-start token) end)) | |
70492703 KH |
1680 | (goto-char end) |
1681 | token))) | |
1682 | ||
1693b06a SM |
1683 | (defconst opascal-font-lock-keywords |
1684 | `(("\\_<\\(function\\|pro\\(cedure\\|gram\\)\\)[ \t]+\\([[:alpha:]][[:alnum:]_]*\\)" | |
1685 | (1 font-lock-keyword-face) (3 font-lock-function-name-face)) | |
1686 | ,(concat "\\_<" (regexp-opt (mapcar #'symbol-name opascal-keywords)) | |
1687 | "\\_>"))) | |
1688 | ||
c4f268a1 | 1689 | (defconst opascal-font-lock-defaults |
1693b06a SM |
1690 | '(opascal-font-lock-keywords |
1691 | nil ; Syntactic fontification does apply. | |
70492703 KH |
1692 | nil ; Don't care about case since we don't use regexps to find tokens. |
1693 | nil ; Syntax alists don't apply. | |
1693b06a SM |
1694 | nil ; Syntax begin movement doesn't apply. |
1695 | ) | |
c4f268a1 | 1696 | "OPascal mode font-lock defaults. Syntactic fontification is ignored.") |
70492703 | 1697 | |
1693b06a SM |
1698 | (defconst opascal--syntax-propertize |
1699 | (syntax-propertize-rules | |
1700 | ;; The syntax-table settings are too coarse and end up treating /* and (/ | |
1701 | ;; as comment starters. Fix it here by removing the "2" from the syntax | |
1702 | ;; of the second char of such sequences. | |
1703 | ("/\\(\\*\\)" (1 ". 3b")) | |
1704 | ("(\\(\\/\\)" (1 (prog1 ". 1c" (forward-char -1) nil))) | |
1705 | ;; Pascal uses '' and "" rather than \' and \" to escape quotes. | |
1706 | ("''\\|\"\"" (0 (if (save-excursion | |
1707 | (nth 3 (syntax-ppss (match-beginning 0)))) | |
1708 | (string-to-syntax ".") | |
1709 | ;; In case of 3 or more quotes in a row, only advance | |
1710 | ;; one quote at a time. | |
1711 | (forward-char -1) | |
1712 | nil))))) | |
1713 | ||
c4f268a1 | 1714 | (defvar opascal-debug-mode-map |
70492703 | 1715 | (let ((kmap (make-sparse-keymap))) |
c4f268a1 SM |
1716 | (dolist (binding '(("n" opascal-debug-goto-next-token) |
1717 | ("p" opascal-debug-goto-previous-token) | |
1718 | ("t" opascal-debug-show-current-token) | |
1719 | ("T" opascal-debug-tokenize-buffer) | |
1720 | ("W" opascal-debug-tokenize-window) | |
1721 | ("g" opascal-debug-goto-point) | |
1693b06a | 1722 | ("s" opascal-debug-show-current-string))) |
c4f268a1 | 1723 | (define-key kmap (car binding) (cadr binding))) |
70492703 | 1724 | kmap) |
c4f268a1 | 1725 | "Keystrokes for OPascal mode debug commands.") |
70492703 | 1726 | |
c4f268a1 | 1727 | (defvar opascal-mode-map |
70492703 | 1728 | (let ((kmap (make-sparse-keymap))) |
c4f268a1 SM |
1729 | (dolist (binding |
1730 | (list ;; '("\C-cd" opascal-find-current-def) | |
1731 | ;; '("\C-cx" opascal-find-current-xdef) | |
1732 | ;; '("\C-cb" opascal-find-current-body) | |
1733 | '("\C-cu" opascal-find-unit) | |
1734 | '("\M-q" opascal-fill-comment) | |
1735 | '("\M-j" opascal-new-comment-line) | |
1736 | ;; Debug bindings: | |
1737 | (list "\C-c\C-d" opascal-debug-mode-map))) | |
1738 | (define-key kmap (car binding) (cadr binding))) | |
70492703 | 1739 | kmap) |
c4f268a1 | 1740 | "Keymap used in OPascal mode.") |
70492703 | 1741 | |
c4f268a1 | 1742 | (define-obsolete-variable-alias 'delphi-mode-hook 'opascal-mode-hook "24.4") |
70492703 | 1743 | ;;;###autoload |
c4f268a1 SM |
1744 | (define-obsolete-function-alias 'delphi-mode 'opascal-mode "24.4") |
1745 | ;;;###autoload | |
1746 | (define-derived-mode opascal-mode prog-mode "OPascal" | |
7644aa97 | 1747 | "Major mode for editing OPascal code.\\<opascal-mode-map> |
c4f268a1 SM |
1748 | \\[opascal-find-unit]\t- Search for a OPascal source file. |
1749 | \\[opascal-fill-comment]\t- Fill the current comment. | |
1750 | \\[opascal-new-comment-line]\t- If in a // comment, do a new comment line. | |
70492703 | 1751 | |
5ba5fb81 | 1752 | \\[indent-region] also works for indenting a whole region. |
70492703 KH |
1753 | |
1754 | Customization: | |
1755 | ||
c4f268a1 SM |
1756 | `opascal-indent-level' (default 3) |
1757 | Indentation of OPascal statements with respect to containing block. | |
1758 | `opascal-compound-block-indent' (default 0) | |
70492703 | 1759 | Extra indentation for blocks in compound statements. |
c4f268a1 | 1760 | `opascal-case-label-indent' (default 0) |
70492703 | 1761 | Extra indentation for case statement labels. |
c4f268a1 | 1762 | `opascal-search-path' (default .) |
70492703 | 1763 | Directories to search when finding external units. |
c4f268a1 SM |
1764 | `opascal-verbose' (default nil) |
1765 | If true then OPascal token processing progress is reported to the user. | |
70492703 KH |
1766 | |
1767 | Coloring: | |
1768 | ||
7644aa97 JB |
1769 | `opascal-keyword-face' (default `font-lock-keyword-face') |
1770 | Face used to color OPascal keywords." | |
70492703 KH |
1771 | |
1772 | ;; Buffer locals: | |
c4f268a1 SM |
1773 | (setq-local indent-line-function #'opascal-indent-line) |
1774 | (setq-local comment-indent-function #'opascal-indent-line) | |
1775 | (setq-local case-fold-search t) | |
1776 | (setq-local opascal-progress-last-reported-point nil) | |
c4f268a1 SM |
1777 | (setq-local font-lock-defaults opascal-font-lock-defaults) |
1778 | (setq-local tab-always-indent opascal-tab-always-indents) | |
1693b06a | 1779 | (setq-local syntax-propertize-function opascal--syntax-propertize) |
c4f268a1 | 1780 | |
1693b06a SM |
1781 | (setq-local comment-start "// ") |
1782 | (setq-local comment-start-skip "\\(?://\\|(\\*\\|{\\)[ \t]*") | |
1783 | (setq-local comment-end-skip "[ \t]*\\(?:\n\\|\\*)\\|}\\)")) | |
e8af40ee | 1784 | |
c4f268a1 SM |
1785 | (provide 'opascal) |
1786 | ;;; opascal.el ends here |