Mercurial > vim
comparison src/cindent.c @ 18265:fe5afdc03bd2 v8.1.2127
patch 8.1.2127: the indent.c file is a bit big
Commit: https://github.com/vim/vim/commit/14c01f83487d5c53192297a710eda2b8a4ab17c9
Author: Bram Moolenaar <Bram@vim.org>
Date: Wed Oct 9 22:53:08 2019 +0200
patch 8.1.2127: the indent.c file is a bit big
Problem: The indent.c file is a bit big.
Solution: Move C-indent code a a new cindent.c file. Move other
indent-related code to indent.c. (Yegappan Lakshmanan,
closes #5031)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Wed, 09 Oct 2019 23:00:04 +0200 |
parents | |
children | 9e6d5a4abb1c |
comparison
equal
deleted
inserted
replaced
18264:5202d9b99bee | 18265:fe5afdc03bd2 |
---|---|
1 /* vi:set ts=8 sts=4 sw=4 noet: | |
2 * | |
3 * VIM - Vi IMproved by Bram Moolenaar | |
4 * | |
5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
6 * Do ":help credits" in Vim to see a list of people who contributed. | |
7 * See README.txt for an overview of the Vim source code. | |
8 */ | |
9 | |
10 /* | |
11 * cindent.c: C indentation related functions | |
12 * | |
13 * Many of C-indenting functions originally come from Eric Fischer. | |
14 * | |
15 * Below "XXX" means that this function may unlock the current line. | |
16 */ | |
17 | |
18 #include "vim.h" | |
19 | |
20 // values for the "lookfor" state | |
21 #define LOOKFOR_INITIAL 0 | |
22 #define LOOKFOR_IF 1 | |
23 #define LOOKFOR_DO 2 | |
24 #define LOOKFOR_CASE 3 | |
25 #define LOOKFOR_ANY 4 | |
26 #define LOOKFOR_TERM 5 | |
27 #define LOOKFOR_UNTERM 6 | |
28 #define LOOKFOR_SCOPEDECL 7 | |
29 #define LOOKFOR_NOBREAK 8 | |
30 #define LOOKFOR_CPP_BASECLASS 9 | |
31 #define LOOKFOR_ENUM_OR_INIT 10 | |
32 #define LOOKFOR_JS_KEY 11 | |
33 #define LOOKFOR_COMMA 12 | |
34 | |
35 #if defined(FEAT_CINDENT) || defined(FEAT_SMARTINDENT) | |
36 /* | |
37 * Return TRUE if the string "line" starts with a word from 'cinwords'. | |
38 */ | |
39 int | |
40 cin_is_cinword(char_u *line) | |
41 { | |
42 char_u *cinw; | |
43 char_u *cinw_buf; | |
44 int cinw_len; | |
45 int retval = FALSE; | |
46 int len; | |
47 | |
48 cinw_len = (int)STRLEN(curbuf->b_p_cinw) + 1; | |
49 cinw_buf = alloc(cinw_len); | |
50 if (cinw_buf != NULL) | |
51 { | |
52 line = skipwhite(line); | |
53 for (cinw = curbuf->b_p_cinw; *cinw; ) | |
54 { | |
55 len = copy_option_part(&cinw, cinw_buf, cinw_len, ","); | |
56 if (STRNCMP(line, cinw_buf, len) == 0 | |
57 && (!vim_iswordc(line[len]) || !vim_iswordc(line[len - 1]))) | |
58 { | |
59 retval = TRUE; | |
60 break; | |
61 } | |
62 } | |
63 vim_free(cinw_buf); | |
64 } | |
65 return retval; | |
66 } | |
67 #endif | |
68 | |
69 #if defined(FEAT_CINDENT) || defined(FEAT_SYN_HL) | |
70 | |
71 /* | |
72 * Skip to the end of a "string" and a 'c' character. | |
73 * If there is no string or character, return argument unmodified. | |
74 */ | |
75 static char_u * | |
76 skip_string(char_u *p) | |
77 { | |
78 int i; | |
79 | |
80 // We loop, because strings may be concatenated: "date""time". | |
81 for ( ; ; ++p) | |
82 { | |
83 if (p[0] == '\'') // 'c' or '\n' or '\000' | |
84 { | |
85 if (!p[1]) // ' at end of line | |
86 break; | |
87 i = 2; | |
88 if (p[1] == '\\') // '\n' or '\000' | |
89 { | |
90 ++i; | |
91 while (vim_isdigit(p[i - 1])) // '\000' | |
92 ++i; | |
93 } | |
94 if (p[i] == '\'') // check for trailing ' | |
95 { | |
96 p += i; | |
97 continue; | |
98 } | |
99 } | |
100 else if (p[0] == '"') // start of string | |
101 { | |
102 for (++p; p[0]; ++p) | |
103 { | |
104 if (p[0] == '\\' && p[1] != NUL) | |
105 ++p; | |
106 else if (p[0] == '"') // end of string | |
107 break; | |
108 } | |
109 if (p[0] == '"') | |
110 continue; // continue for another string | |
111 } | |
112 else if (p[0] == 'R' && p[1] == '"') | |
113 { | |
114 // Raw string: R"[delim](...)[delim]" | |
115 char_u *delim = p + 2; | |
116 char_u *paren = vim_strchr(delim, '('); | |
117 | |
118 if (paren != NULL) | |
119 { | |
120 size_t delim_len = paren - delim; | |
121 | |
122 for (p += 3; *p; ++p) | |
123 if (p[0] == ')' && STRNCMP(p + 1, delim, delim_len) == 0 | |
124 && p[delim_len + 1] == '"') | |
125 { | |
126 p += delim_len + 1; | |
127 break; | |
128 } | |
129 if (p[0] == '"') | |
130 continue; // continue for another string | |
131 } | |
132 } | |
133 break; // no string found | |
134 } | |
135 if (!*p) | |
136 --p; // backup from NUL | |
137 return p; | |
138 } | |
139 | |
140 /* | |
141 * Find the start of a comment, not knowing if we are in a comment right now. | |
142 * Search starts at w_cursor.lnum and goes backwards. | |
143 * Return NULL when not inside a comment. | |
144 */ | |
145 static pos_T * | |
146 ind_find_start_comment(void) // XXX | |
147 { | |
148 return find_start_comment(curbuf->b_ind_maxcomment); | |
149 } | |
150 | |
151 pos_T * | |
152 find_start_comment(int ind_maxcomment) // XXX | |
153 { | |
154 pos_T *pos; | |
155 char_u *line; | |
156 char_u *p; | |
157 int cur_maxcomment = ind_maxcomment; | |
158 | |
159 for (;;) | |
160 { | |
161 pos = findmatchlimit(NULL, '*', FM_BACKWARD, cur_maxcomment); | |
162 if (pos == NULL) | |
163 break; | |
164 | |
165 // Check if the comment start we found is inside a string. | |
166 // If it is then restrict the search to below this line and try again. | |
167 line = ml_get(pos->lnum); | |
168 for (p = line; *p && (colnr_T)(p - line) < pos->col; ++p) | |
169 p = skip_string(p); | |
170 if ((colnr_T)(p - line) <= pos->col) | |
171 break; | |
172 cur_maxcomment = curwin->w_cursor.lnum - pos->lnum - 1; | |
173 if (cur_maxcomment <= 0) | |
174 { | |
175 pos = NULL; | |
176 break; | |
177 } | |
178 } | |
179 return pos; | |
180 } | |
181 | |
182 /* | |
183 * Find the start of a raw string, not knowing if we are in one right now. | |
184 * Search starts at w_cursor.lnum and goes backwards. | |
185 * Return NULL when not inside a raw string. | |
186 */ | |
187 static pos_T * | |
188 find_start_rawstring(int ind_maxcomment) // XXX | |
189 { | |
190 pos_T *pos; | |
191 char_u *line; | |
192 char_u *p; | |
193 int cur_maxcomment = ind_maxcomment; | |
194 | |
195 for (;;) | |
196 { | |
197 pos = findmatchlimit(NULL, 'R', FM_BACKWARD, cur_maxcomment); | |
198 if (pos == NULL) | |
199 break; | |
200 | |
201 // Check if the raw string start we found is inside a string. | |
202 // If it is then restrict the search to below this line and try again. | |
203 line = ml_get(pos->lnum); | |
204 for (p = line; *p && (colnr_T)(p - line) < pos->col; ++p) | |
205 p = skip_string(p); | |
206 if ((colnr_T)(p - line) <= pos->col) | |
207 break; | |
208 cur_maxcomment = curwin->w_cursor.lnum - pos->lnum - 1; | |
209 if (cur_maxcomment <= 0) | |
210 { | |
211 pos = NULL; | |
212 break; | |
213 } | |
214 } | |
215 return pos; | |
216 } | |
217 | |
218 /* | |
219 * Find the start of a comment or raw string, not knowing if we are in a | |
220 * comment or raw string right now. | |
221 * Search starts at w_cursor.lnum and goes backwards. | |
222 * If is_raw is given and returns start of raw_string, sets it to true. | |
223 * Return NULL when not inside a comment or raw string. | |
224 * "CORS" -> Comment Or Raw String | |
225 */ | |
226 static pos_T * | |
227 ind_find_start_CORS(linenr_T *is_raw) // XXX | |
228 { | |
229 static pos_T comment_pos_copy; | |
230 pos_T *comment_pos; | |
231 pos_T *rs_pos; | |
232 | |
233 comment_pos = find_start_comment(curbuf->b_ind_maxcomment); | |
234 if (comment_pos != NULL) | |
235 { | |
236 // Need to make a copy of the static pos in findmatchlimit(), | |
237 // calling find_start_rawstring() may change it. | |
238 comment_pos_copy = *comment_pos; | |
239 comment_pos = &comment_pos_copy; | |
240 } | |
241 rs_pos = find_start_rawstring(curbuf->b_ind_maxcomment); | |
242 | |
243 // If comment_pos is before rs_pos the raw string is inside the comment. | |
244 // If rs_pos is before comment_pos the comment is inside the raw string. | |
245 if (comment_pos == NULL || (rs_pos != NULL | |
246 && LT_POS(*rs_pos, *comment_pos))) | |
247 { | |
248 if (is_raw != NULL && rs_pos != NULL) | |
249 *is_raw = rs_pos->lnum; | |
250 return rs_pos; | |
251 } | |
252 return comment_pos; | |
253 } | |
254 #endif // FEAT_CINDENT || FEAT_SYN_HL | |
255 | |
256 #if defined(FEAT_CINDENT) || defined(PROTO) | |
257 | |
258 /* | |
259 * Return TRUE if C-indenting is on. | |
260 */ | |
261 int | |
262 cindent_on(void) | |
263 { | |
264 return (!p_paste && (curbuf->b_p_cin | |
265 # ifdef FEAT_EVAL | |
266 || *curbuf->b_p_inde != NUL | |
267 # endif | |
268 )); | |
269 } | |
270 | |
271 // Find result cache for cpp_baseclass | |
272 typedef struct { | |
273 int found; | |
274 lpos_T lpos; | |
275 } cpp_baseclass_cache_T; | |
276 | |
277 /* | |
278 * Skip over white space and C comments within the line. | |
279 * Also skip over Perl/shell comments if desired. | |
280 */ | |
281 static char_u * | |
282 cin_skipcomment(char_u *s) | |
283 { | |
284 while (*s) | |
285 { | |
286 char_u *prev_s = s; | |
287 | |
288 s = skipwhite(s); | |
289 | |
290 // Perl/shell # comment comment continues until eol. Require a space | |
291 // before # to avoid recognizing $#array. | |
292 if (curbuf->b_ind_hash_comment != 0 && s != prev_s && *s == '#') | |
293 { | |
294 s += STRLEN(s); | |
295 break; | |
296 } | |
297 if (*s != '/') | |
298 break; | |
299 ++s; | |
300 if (*s == '/') // slash-slash comment continues till eol | |
301 { | |
302 s += STRLEN(s); | |
303 break; | |
304 } | |
305 if (*s != '*') | |
306 break; | |
307 for (++s; *s; ++s) // skip slash-star comment | |
308 if (s[0] == '*' && s[1] == '/') | |
309 { | |
310 s += 2; | |
311 break; | |
312 } | |
313 } | |
314 return s; | |
315 } | |
316 | |
317 /* | |
318 * Return TRUE if there is no code at *s. White space and comments are | |
319 * not considered code. | |
320 */ | |
321 static int | |
322 cin_nocode(char_u *s) | |
323 { | |
324 return *cin_skipcomment(s) == NUL; | |
325 } | |
326 | |
327 /* | |
328 * Recognize the start of a C or C++ comment. | |
329 */ | |
330 static int | |
331 cin_iscomment(char_u *p) | |
332 { | |
333 return (p[0] == '/' && (p[1] == '*' || p[1] == '/')); | |
334 } | |
335 | |
336 /* | |
337 * Recognize the start of a "//" comment. | |
338 */ | |
339 static int | |
340 cin_islinecomment(char_u *p) | |
341 { | |
342 return (p[0] == '/' && p[1] == '/'); | |
343 } | |
344 | |
345 /* | |
346 * Check previous lines for a "//" line comment, skipping over blank lines. | |
347 */ | |
348 static pos_T * | |
349 find_line_comment(void) // XXX | |
350 { | |
351 static pos_T pos; | |
352 char_u *line; | |
353 char_u *p; | |
354 | |
355 pos = curwin->w_cursor; | |
356 while (--pos.lnum > 0) | |
357 { | |
358 line = ml_get(pos.lnum); | |
359 p = skipwhite(line); | |
360 if (cin_islinecomment(p)) | |
361 { | |
362 pos.col = (int)(p - line); | |
363 return &pos; | |
364 } | |
365 if (*p != NUL) | |
366 break; | |
367 } | |
368 return NULL; | |
369 } | |
370 | |
371 /* | |
372 * Return TRUE if "text" starts with "key:". | |
373 */ | |
374 static int | |
375 cin_has_js_key(char_u *text) | |
376 { | |
377 char_u *s = skipwhite(text); | |
378 int quote = -1; | |
379 | |
380 if (*s == '\'' || *s == '"') | |
381 { | |
382 // can be 'key': or "key": | |
383 quote = *s; | |
384 ++s; | |
385 } | |
386 if (!vim_isIDc(*s)) // need at least one ID character | |
387 return FALSE; | |
388 | |
389 while (vim_isIDc(*s)) | |
390 ++s; | |
391 if (*s == quote) | |
392 ++s; | |
393 | |
394 s = cin_skipcomment(s); | |
395 | |
396 // "::" is not a label, it's C++ | |
397 return (*s == ':' && s[1] != ':'); | |
398 } | |
399 | |
400 /* | |
401 * Check if string matches "label:"; move to character after ':' if true. | |
402 * "*s" must point to the start of the label, if there is one. | |
403 */ | |
404 static int | |
405 cin_islabel_skip(char_u **s) | |
406 { | |
407 if (!vim_isIDc(**s)) // need at least one ID character | |
408 return FALSE; | |
409 | |
410 while (vim_isIDc(**s)) | |
411 (*s)++; | |
412 | |
413 *s = cin_skipcomment(*s); | |
414 | |
415 // "::" is not a label, it's C++ | |
416 return (**s == ':' && *++*s != ':'); | |
417 } | |
418 | |
419 /* | |
420 * Recognize a "public/private/protected" scope declaration label. | |
421 */ | |
422 static int | |
423 cin_isscopedecl(char_u *s) | |
424 { | |
425 int i; | |
426 | |
427 s = cin_skipcomment(s); | |
428 if (STRNCMP(s, "public", 6) == 0) | |
429 i = 6; | |
430 else if (STRNCMP(s, "protected", 9) == 0) | |
431 i = 9; | |
432 else if (STRNCMP(s, "private", 7) == 0) | |
433 i = 7; | |
434 else | |
435 return FALSE; | |
436 return (*(s = cin_skipcomment(s + i)) == ':' && s[1] != ':'); | |
437 } | |
438 | |
439 /* | |
440 * Recognize a preprocessor statement: Any line that starts with '#'. | |
441 */ | |
442 static int | |
443 cin_ispreproc(char_u *s) | |
444 { | |
445 if (*skipwhite(s) == '#') | |
446 return TRUE; | |
447 return FALSE; | |
448 } | |
449 | |
450 /* | |
451 * Return TRUE if line "*pp" at "*lnump" is a preprocessor statement or a | |
452 * continuation line of a preprocessor statement. Decrease "*lnump" to the | |
453 * start and return the line in "*pp". | |
454 * Put the amount of indent in "*amount". | |
455 */ | |
456 static int | |
457 cin_ispreproc_cont(char_u **pp, linenr_T *lnump, int *amount) | |
458 { | |
459 char_u *line = *pp; | |
460 linenr_T lnum = *lnump; | |
461 int retval = FALSE; | |
462 int candidate_amount = *amount; | |
463 | |
464 if (*line != NUL && line[STRLEN(line) - 1] == '\\') | |
465 candidate_amount = get_indent_lnum(lnum); | |
466 | |
467 for (;;) | |
468 { | |
469 if (cin_ispreproc(line)) | |
470 { | |
471 retval = TRUE; | |
472 *lnump = lnum; | |
473 break; | |
474 } | |
475 if (lnum == 1) | |
476 break; | |
477 line = ml_get(--lnum); | |
478 if (*line == NUL || line[STRLEN(line) - 1] != '\\') | |
479 break; | |
480 } | |
481 | |
482 if (lnum != *lnump) | |
483 *pp = ml_get(*lnump); | |
484 if (retval) | |
485 *amount = candidate_amount; | |
486 return retval; | |
487 } | |
488 | |
489 static int | |
490 cin_iselse( | |
491 char_u *p) | |
492 { | |
493 if (*p == '}') // accept "} else" | |
494 p = cin_skipcomment(p + 1); | |
495 return (STRNCMP(p, "else", 4) == 0 && !vim_isIDc(p[4])); | |
496 } | |
497 | |
498 /* | |
499 * Recognize a line that starts with '{' or '}', or ends with ';', ',', '{' or | |
500 * '}'. | |
501 * Don't consider "} else" a terminated line. | |
502 * If a line begins with an "else", only consider it terminated if no unmatched | |
503 * opening braces follow (handle "else { foo();" correctly). | |
504 * Return the character terminating the line (ending char's have precedence if | |
505 * both apply in order to determine initializations). | |
506 */ | |
507 static int | |
508 cin_isterminated( | |
509 char_u *s, | |
510 int incl_open, // include '{' at the end as terminator | |
511 int incl_comma) // recognize a trailing comma | |
512 { | |
513 char_u found_start = 0; | |
514 unsigned n_open = 0; | |
515 int is_else = FALSE; | |
516 | |
517 s = cin_skipcomment(s); | |
518 | |
519 if (*s == '{' || (*s == '}' && !cin_iselse(s))) | |
520 found_start = *s; | |
521 | |
522 if (!found_start) | |
523 is_else = cin_iselse(s); | |
524 | |
525 while (*s) | |
526 { | |
527 // skip over comments, "" strings and 'c'haracters | |
528 s = skip_string(cin_skipcomment(s)); | |
529 if (*s == '}' && n_open > 0) | |
530 --n_open; | |
531 if ((!is_else || n_open == 0) | |
532 && (*s == ';' || *s == '}' || (incl_comma && *s == ',')) | |
533 && cin_nocode(s + 1)) | |
534 return *s; | |
535 else if (*s == '{') | |
536 { | |
537 if (incl_open && cin_nocode(s + 1)) | |
538 return *s; | |
539 else | |
540 ++n_open; | |
541 } | |
542 | |
543 if (*s) | |
544 s++; | |
545 } | |
546 return found_start; | |
547 } | |
548 | |
549 /* | |
550 * Return TRUE when "s" starts with "word" and then a non-ID character. | |
551 */ | |
552 static int | |
553 cin_starts_with(char_u *s, char *word) | |
554 { | |
555 int l = (int)STRLEN(word); | |
556 | |
557 return (STRNCMP(s, word, l) == 0 && !vim_isIDc(s[l])); | |
558 } | |
559 | |
560 /* | |
561 * Recognize a "default" switch label. | |
562 */ | |
563 static int | |
564 cin_isdefault(char_u *s) | |
565 { | |
566 return (STRNCMP(s, "default", 7) == 0 | |
567 && *(s = cin_skipcomment(s + 7)) == ':' | |
568 && s[1] != ':'); | |
569 } | |
570 | |
571 /* | |
572 * Recognize a switch label: "case .*:" or "default:". | |
573 */ | |
574 static int | |
575 cin_iscase( | |
576 char_u *s, | |
577 int strict) // Allow relaxed check of case statement for JS | |
578 { | |
579 s = cin_skipcomment(s); | |
580 if (cin_starts_with(s, "case")) | |
581 { | |
582 for (s += 4; *s; ++s) | |
583 { | |
584 s = cin_skipcomment(s); | |
585 if (*s == ':') | |
586 { | |
587 if (s[1] == ':') // skip over "::" for C++ | |
588 ++s; | |
589 else | |
590 return TRUE; | |
591 } | |
592 if (*s == '\'' && s[1] && s[2] == '\'') | |
593 s += 2; // skip over ':' | |
594 else if (*s == '/' && (s[1] == '*' || s[1] == '/')) | |
595 return FALSE; // stop at comment | |
596 else if (*s == '"') | |
597 { | |
598 // JS etc. | |
599 if (strict) | |
600 return FALSE; // stop at string | |
601 else | |
602 return TRUE; | |
603 } | |
604 } | |
605 return FALSE; | |
606 } | |
607 | |
608 if (cin_isdefault(s)) | |
609 return TRUE; | |
610 return FALSE; | |
611 } | |
612 | |
613 /* | |
614 * Recognize a label: "label:". | |
615 * Note: curwin->w_cursor must be where we are looking for the label. | |
616 */ | |
617 static int | |
618 cin_islabel(void) // XXX | |
619 { | |
620 char_u *s; | |
621 | |
622 s = cin_skipcomment(ml_get_curline()); | |
623 | |
624 // Exclude "default" from labels, since it should be indented | |
625 // like a switch label. Same for C++ scope declarations. | |
626 if (cin_isdefault(s)) | |
627 return FALSE; | |
628 if (cin_isscopedecl(s)) | |
629 return FALSE; | |
630 | |
631 if (cin_islabel_skip(&s)) | |
632 { | |
633 // Only accept a label if the previous line is terminated or is a case | |
634 // label. | |
635 pos_T cursor_save; | |
636 pos_T *trypos; | |
637 char_u *line; | |
638 | |
639 cursor_save = curwin->w_cursor; | |
640 while (curwin->w_cursor.lnum > 1) | |
641 { | |
642 --curwin->w_cursor.lnum; | |
643 | |
644 // If we're in a comment or raw string now, skip to the start of | |
645 // it. | |
646 curwin->w_cursor.col = 0; | |
647 if ((trypos = ind_find_start_CORS(NULL)) != NULL) // XXX | |
648 curwin->w_cursor = *trypos; | |
649 | |
650 line = ml_get_curline(); | |
651 if (cin_ispreproc(line)) // ignore #defines, #if, etc. | |
652 continue; | |
653 if (*(line = cin_skipcomment(line)) == NUL) | |
654 continue; | |
655 | |
656 curwin->w_cursor = cursor_save; | |
657 if (cin_isterminated(line, TRUE, FALSE) | |
658 || cin_isscopedecl(line) | |
659 || cin_iscase(line, TRUE) | |
660 || (cin_islabel_skip(&line) && cin_nocode(line))) | |
661 return TRUE; | |
662 return FALSE; | |
663 } | |
664 curwin->w_cursor = cursor_save; | |
665 return TRUE; // label at start of file??? | |
666 } | |
667 return FALSE; | |
668 } | |
669 | |
670 /* | |
671 * Return TRUE if string "s" ends with the string "find", possibly followed by | |
672 * white space and comments. Skip strings and comments. | |
673 * Ignore "ignore" after "find" if it's not NULL. | |
674 */ | |
675 static int | |
676 cin_ends_in(char_u *s, char_u *find, char_u *ignore) | |
677 { | |
678 char_u *p = s; | |
679 char_u *r; | |
680 int len = (int)STRLEN(find); | |
681 | |
682 while (*p != NUL) | |
683 { | |
684 p = cin_skipcomment(p); | |
685 if (STRNCMP(p, find, len) == 0) | |
686 { | |
687 r = skipwhite(p + len); | |
688 if (ignore != NULL && STRNCMP(r, ignore, STRLEN(ignore)) == 0) | |
689 r = skipwhite(r + STRLEN(ignore)); | |
690 if (cin_nocode(r)) | |
691 return TRUE; | |
692 } | |
693 if (*p != NUL) | |
694 ++p; | |
695 } | |
696 return FALSE; | |
697 } | |
698 | |
699 /* | |
700 * Recognize structure initialization and enumerations: | |
701 * "[typedef] [static|public|protected|private] enum" | |
702 * "[typedef] [static|public|protected|private] = {" | |
703 */ | |
704 static int | |
705 cin_isinit(void) | |
706 { | |
707 char_u *s; | |
708 static char *skip[] = {"static", "public", "protected", "private"}; | |
709 | |
710 s = cin_skipcomment(ml_get_curline()); | |
711 | |
712 if (cin_starts_with(s, "typedef")) | |
713 s = cin_skipcomment(s + 7); | |
714 | |
715 for (;;) | |
716 { | |
717 int i, l; | |
718 | |
719 for (i = 0; i < (int)(sizeof(skip) / sizeof(char *)); ++i) | |
720 { | |
721 l = (int)strlen(skip[i]); | |
722 if (cin_starts_with(s, skip[i])) | |
723 { | |
724 s = cin_skipcomment(s + l); | |
725 l = 0; | |
726 break; | |
727 } | |
728 } | |
729 if (l != 0) | |
730 break; | |
731 } | |
732 | |
733 if (cin_starts_with(s, "enum")) | |
734 return TRUE; | |
735 | |
736 if (cin_ends_in(s, (char_u *)"=", (char_u *)"{")) | |
737 return TRUE; | |
738 | |
739 return FALSE; | |
740 } | |
741 | |
742 // Maximum number of lines to search back for a "namespace" line. | |
743 #define FIND_NAMESPACE_LIM 20 | |
744 | |
745 /* | |
746 * Recognize a "namespace" scope declaration. | |
747 */ | |
748 static int | |
749 cin_is_cpp_namespace(char_u *s) | |
750 { | |
751 char_u *p; | |
752 int has_name = FALSE; | |
753 int has_name_start = FALSE; | |
754 | |
755 s = cin_skipcomment(s); | |
756 if (STRNCMP(s, "namespace", 9) == 0 && (s[9] == NUL || !vim_iswordc(s[9]))) | |
757 { | |
758 p = cin_skipcomment(skipwhite(s + 9)); | |
759 while (*p != NUL) | |
760 { | |
761 if (VIM_ISWHITE(*p)) | |
762 { | |
763 has_name = TRUE; // found end of a name | |
764 p = cin_skipcomment(skipwhite(p)); | |
765 } | |
766 else if (*p == '{') | |
767 { | |
768 break; | |
769 } | |
770 else if (vim_iswordc(*p)) | |
771 { | |
772 has_name_start = TRUE; | |
773 if (has_name) | |
774 return FALSE; // word character after skipping past name | |
775 ++p; | |
776 } | |
777 else if (p[0] == ':' && p[1] == ':' && vim_iswordc(p[2])) | |
778 { | |
779 if (!has_name_start || has_name) | |
780 return FALSE; | |
781 // C++ 17 nested namespace | |
782 p += 3; | |
783 } | |
784 else | |
785 { | |
786 return FALSE; | |
787 } | |
788 } | |
789 return TRUE; | |
790 } | |
791 return FALSE; | |
792 } | |
793 | |
794 /* | |
795 * Recognize a `extern "C"` or `extern "C++"` linkage specifications. | |
796 */ | |
797 static int | |
798 cin_is_cpp_extern_c(char_u *s) | |
799 { | |
800 char_u *p; | |
801 int has_string_literal = FALSE; | |
802 | |
803 s = cin_skipcomment(s); | |
804 if (STRNCMP(s, "extern", 6) == 0 && (s[6] == NUL || !vim_iswordc(s[6]))) | |
805 { | |
806 p = cin_skipcomment(skipwhite(s + 6)); | |
807 while (*p != NUL) | |
808 { | |
809 if (VIM_ISWHITE(*p)) | |
810 { | |
811 p = cin_skipcomment(skipwhite(p)); | |
812 } | |
813 else if (*p == '{') | |
814 { | |
815 break; | |
816 } | |
817 else if (p[0] == '"' && p[1] == 'C' && p[2] == '"') | |
818 { | |
819 if (has_string_literal) | |
820 return FALSE; | |
821 has_string_literal = TRUE; | |
822 p += 3; | |
823 } | |
824 else if (p[0] == '"' && p[1] == 'C' && p[2] == '+' && p[3] == '+' | |
825 && p[4] == '"') | |
826 { | |
827 if (has_string_literal) | |
828 return FALSE; | |
829 has_string_literal = TRUE; | |
830 p += 5; | |
831 } | |
832 else | |
833 { | |
834 return FALSE; | |
835 } | |
836 } | |
837 return has_string_literal ? TRUE : FALSE; | |
838 } | |
839 return FALSE; | |
840 } | |
841 | |
842 /* | |
843 * Return a pointer to the first non-empty non-comment character after a ':'. | |
844 * Return NULL if not found. | |
845 * case 234: a = b; | |
846 * ^ | |
847 */ | |
848 static char_u * | |
849 after_label(char_u *l) | |
850 { | |
851 for ( ; *l; ++l) | |
852 { | |
853 if (*l == ':') | |
854 { | |
855 if (l[1] == ':') // skip over "::" for C++ | |
856 ++l; | |
857 else if (!cin_iscase(l + 1, FALSE)) | |
858 break; | |
859 } | |
860 else if (*l == '\'' && l[1] && l[2] == '\'') | |
861 l += 2; // skip over 'x' | |
862 } | |
863 if (*l == NUL) | |
864 return NULL; | |
865 l = cin_skipcomment(l + 1); | |
866 if (*l == NUL) | |
867 return NULL; | |
868 return l; | |
869 } | |
870 | |
871 /* | |
872 * Get indent of line "lnum", skipping a label. | |
873 * Return 0 if there is nothing after the label. | |
874 */ | |
875 static int | |
876 get_indent_nolabel (linenr_T lnum) // XXX | |
877 { | |
878 char_u *l; | |
879 pos_T fp; | |
880 colnr_T col; | |
881 char_u *p; | |
882 | |
883 l = ml_get(lnum); | |
884 p = after_label(l); | |
885 if (p == NULL) | |
886 return 0; | |
887 | |
888 fp.col = (colnr_T)(p - l); | |
889 fp.lnum = lnum; | |
890 getvcol(curwin, &fp, &col, NULL, NULL); | |
891 return (int)col; | |
892 } | |
893 | |
894 /* | |
895 * Find indent for line "lnum", ignoring any case or jump label. | |
896 * Also return a pointer to the text (after the label) in "pp". | |
897 * label: if (asdf && asdfasdf) | |
898 * ^ | |
899 */ | |
900 static int | |
901 skip_label(linenr_T lnum, char_u **pp) | |
902 { | |
903 char_u *l; | |
904 int amount; | |
905 pos_T cursor_save; | |
906 | |
907 cursor_save = curwin->w_cursor; | |
908 curwin->w_cursor.lnum = lnum; | |
909 l = ml_get_curline(); | |
910 // XXX | |
911 if (cin_iscase(l, FALSE) || cin_isscopedecl(l) || cin_islabel()) | |
912 { | |
913 amount = get_indent_nolabel(lnum); | |
914 l = after_label(ml_get_curline()); | |
915 if (l == NULL) // just in case | |
916 l = ml_get_curline(); | |
917 } | |
918 else | |
919 { | |
920 amount = get_indent(); | |
921 l = ml_get_curline(); | |
922 } | |
923 *pp = l; | |
924 | |
925 curwin->w_cursor = cursor_save; | |
926 return amount; | |
927 } | |
928 | |
929 /* | |
930 * Return the indent of the first variable name after a type in a declaration. | |
931 * int a, indent of "a" | |
932 * static struct foo b, indent of "b" | |
933 * enum bla c, indent of "c" | |
934 * Returns zero when it doesn't look like a declaration. | |
935 */ | |
936 static int | |
937 cin_first_id_amount(void) | |
938 { | |
939 char_u *line, *p, *s; | |
940 int len; | |
941 pos_T fp; | |
942 colnr_T col; | |
943 | |
944 line = ml_get_curline(); | |
945 p = skipwhite(line); | |
946 len = (int)(skiptowhite(p) - p); | |
947 if (len == 6 && STRNCMP(p, "static", 6) == 0) | |
948 { | |
949 p = skipwhite(p + 6); | |
950 len = (int)(skiptowhite(p) - p); | |
951 } | |
952 if (len == 6 && STRNCMP(p, "struct", 6) == 0) | |
953 p = skipwhite(p + 6); | |
954 else if (len == 4 && STRNCMP(p, "enum", 4) == 0) | |
955 p = skipwhite(p + 4); | |
956 else if ((len == 8 && STRNCMP(p, "unsigned", 8) == 0) | |
957 || (len == 6 && STRNCMP(p, "signed", 6) == 0)) | |
958 { | |
959 s = skipwhite(p + len); | |
960 if ((STRNCMP(s, "int", 3) == 0 && VIM_ISWHITE(s[3])) | |
961 || (STRNCMP(s, "long", 4) == 0 && VIM_ISWHITE(s[4])) | |
962 || (STRNCMP(s, "short", 5) == 0 && VIM_ISWHITE(s[5])) | |
963 || (STRNCMP(s, "char", 4) == 0 && VIM_ISWHITE(s[4]))) | |
964 p = s; | |
965 } | |
966 for (len = 0; vim_isIDc(p[len]); ++len) | |
967 ; | |
968 if (len == 0 || !VIM_ISWHITE(p[len]) || cin_nocode(p)) | |
969 return 0; | |
970 | |
971 p = skipwhite(p + len); | |
972 fp.lnum = curwin->w_cursor.lnum; | |
973 fp.col = (colnr_T)(p - line); | |
974 getvcol(curwin, &fp, &col, NULL, NULL); | |
975 return (int)col; | |
976 } | |
977 | |
978 /* | |
979 * Return the indent of the first non-blank after an equal sign. | |
980 * char *foo = "here"; | |
981 * Return zero if no (useful) equal sign found. | |
982 * Return -1 if the line above "lnum" ends in a backslash. | |
983 * foo = "asdf\ | |
984 * asdf\ | |
985 * here"; | |
986 */ | |
987 static int | |
988 cin_get_equal_amount(linenr_T lnum) | |
989 { | |
990 char_u *line; | |
991 char_u *s; | |
992 colnr_T col; | |
993 pos_T fp; | |
994 | |
995 if (lnum > 1) | |
996 { | |
997 line = ml_get(lnum - 1); | |
998 if (*line != NUL && line[STRLEN(line) - 1] == '\\') | |
999 return -1; | |
1000 } | |
1001 | |
1002 line = s = ml_get(lnum); | |
1003 while (*s != NUL && vim_strchr((char_u *)"=;{}\"'", *s) == NULL) | |
1004 { | |
1005 if (cin_iscomment(s)) // ignore comments | |
1006 s = cin_skipcomment(s); | |
1007 else | |
1008 ++s; | |
1009 } | |
1010 if (*s != '=') | |
1011 return 0; | |
1012 | |
1013 s = skipwhite(s + 1); | |
1014 if (cin_nocode(s)) | |
1015 return 0; | |
1016 | |
1017 if (*s == '"') // nice alignment for continued strings | |
1018 ++s; | |
1019 | |
1020 fp.lnum = lnum; | |
1021 fp.col = (colnr_T)(s - line); | |
1022 getvcol(curwin, &fp, &col, NULL, NULL); | |
1023 return (int)col; | |
1024 } | |
1025 | |
1026 /* | |
1027 * Skip strings, chars and comments until at or past "trypos". | |
1028 * Return the column found. | |
1029 */ | |
1030 static int | |
1031 cin_skip2pos(pos_T *trypos) | |
1032 { | |
1033 char_u *line; | |
1034 char_u *p; | |
1035 char_u *new_p; | |
1036 | |
1037 p = line = ml_get(trypos->lnum); | |
1038 while (*p && (colnr_T)(p - line) < trypos->col) | |
1039 { | |
1040 if (cin_iscomment(p)) | |
1041 p = cin_skipcomment(p); | |
1042 else | |
1043 { | |
1044 new_p = skip_string(p); | |
1045 if (new_p == p) | |
1046 ++p; | |
1047 else | |
1048 p = new_p; | |
1049 } | |
1050 } | |
1051 return (int)(p - line); | |
1052 } | |
1053 | |
1054 static pos_T * | |
1055 find_match_char(int c, int ind_maxparen) // XXX | |
1056 { | |
1057 pos_T cursor_save; | |
1058 pos_T *trypos; | |
1059 static pos_T pos_copy; | |
1060 int ind_maxp_wk; | |
1061 | |
1062 cursor_save = curwin->w_cursor; | |
1063 ind_maxp_wk = ind_maxparen; | |
1064 retry: | |
1065 if ((trypos = findmatchlimit(NULL, c, 0, ind_maxp_wk)) != NULL) | |
1066 { | |
1067 // check if the ( is in a // comment | |
1068 if ((colnr_T)cin_skip2pos(trypos) > trypos->col) | |
1069 { | |
1070 ind_maxp_wk = ind_maxparen - (int)(cursor_save.lnum - trypos->lnum); | |
1071 if (ind_maxp_wk > 0) | |
1072 { | |
1073 curwin->w_cursor = *trypos; | |
1074 curwin->w_cursor.col = 0; // XXX | |
1075 goto retry; | |
1076 } | |
1077 trypos = NULL; | |
1078 } | |
1079 else | |
1080 { | |
1081 pos_T *trypos_wk; | |
1082 | |
1083 pos_copy = *trypos; // copy trypos, findmatch will change it | |
1084 trypos = &pos_copy; | |
1085 curwin->w_cursor = *trypos; | |
1086 if ((trypos_wk = ind_find_start_CORS(NULL)) != NULL) // XXX | |
1087 { | |
1088 ind_maxp_wk = ind_maxparen - (int)(cursor_save.lnum | |
1089 - trypos_wk->lnum); | |
1090 if (ind_maxp_wk > 0) | |
1091 { | |
1092 curwin->w_cursor = *trypos_wk; | |
1093 goto retry; | |
1094 } | |
1095 trypos = NULL; | |
1096 } | |
1097 } | |
1098 } | |
1099 curwin->w_cursor = cursor_save; | |
1100 return trypos; | |
1101 } | |
1102 | |
1103 /* | |
1104 * Find the matching '(', ignoring it if it is in a comment. | |
1105 * Return NULL if no match found. | |
1106 */ | |
1107 static pos_T * | |
1108 find_match_paren(int ind_maxparen) // XXX | |
1109 { | |
1110 return find_match_char('(', ind_maxparen); | |
1111 } | |
1112 | |
1113 /* | |
1114 * Set w_cursor.col to the column number of the last unmatched ')' or '{' in | |
1115 * line "l". "l" must point to the start of the line. | |
1116 */ | |
1117 static int | |
1118 find_last_paren(char_u *l, int start, int end) | |
1119 { | |
1120 int i; | |
1121 int retval = FALSE; | |
1122 int open_count = 0; | |
1123 | |
1124 curwin->w_cursor.col = 0; // default is start of line | |
1125 | |
1126 for (i = 0; l[i] != NUL; i++) | |
1127 { | |
1128 i = (int)(cin_skipcomment(l + i) - l); // ignore parens in comments | |
1129 i = (int)(skip_string(l + i) - l); // ignore parens in quotes | |
1130 if (l[i] == start) | |
1131 ++open_count; | |
1132 else if (l[i] == end) | |
1133 { | |
1134 if (open_count > 0) | |
1135 --open_count; | |
1136 else | |
1137 { | |
1138 curwin->w_cursor.col = i; | |
1139 retval = TRUE; | |
1140 } | |
1141 } | |
1142 } | |
1143 return retval; | |
1144 } | |
1145 | |
1146 /* | |
1147 * Recognize the basic picture of a function declaration -- it needs to | |
1148 * have an open paren somewhere and a close paren at the end of the line and | |
1149 * no semicolons anywhere. | |
1150 * When a line ends in a comma we continue looking in the next line. | |
1151 * "sp" points to a string with the line. When looking at other lines it must | |
1152 * be restored to the line. When it's NULL fetch lines here. | |
1153 * "first_lnum" is where we start looking. | |
1154 * "min_lnum" is the line before which we will not be looking. | |
1155 */ | |
1156 static int | |
1157 cin_isfuncdecl( | |
1158 char_u **sp, | |
1159 linenr_T first_lnum, | |
1160 linenr_T min_lnum) | |
1161 { | |
1162 char_u *s; | |
1163 linenr_T lnum = first_lnum; | |
1164 linenr_T save_lnum = curwin->w_cursor.lnum; | |
1165 int retval = FALSE; | |
1166 pos_T *trypos; | |
1167 int just_started = TRUE; | |
1168 | |
1169 if (sp == NULL) | |
1170 s = ml_get(lnum); | |
1171 else | |
1172 s = *sp; | |
1173 | |
1174 curwin->w_cursor.lnum = lnum; | |
1175 if (find_last_paren(s, '(', ')') | |
1176 && (trypos = find_match_paren(curbuf->b_ind_maxparen)) != NULL) | |
1177 { | |
1178 lnum = trypos->lnum; | |
1179 if (lnum < min_lnum) | |
1180 { | |
1181 curwin->w_cursor.lnum = save_lnum; | |
1182 return FALSE; | |
1183 } | |
1184 | |
1185 s = ml_get(lnum); | |
1186 } | |
1187 curwin->w_cursor.lnum = save_lnum; | |
1188 | |
1189 // Ignore line starting with #. | |
1190 if (cin_ispreproc(s)) | |
1191 return FALSE; | |
1192 | |
1193 while (*s && *s != '(' && *s != ';' && *s != '\'' && *s != '"') | |
1194 { | |
1195 if (cin_iscomment(s)) // ignore comments | |
1196 s = cin_skipcomment(s); | |
1197 else if (*s == ':') | |
1198 { | |
1199 if (*(s + 1) == ':') | |
1200 s += 2; | |
1201 else | |
1202 // To avoid a mistake in the following situation: | |
1203 // A::A(int a, int b) | |
1204 // : a(0) // <--not a function decl | |
1205 // , b(0) | |
1206 // {... | |
1207 return FALSE; | |
1208 } | |
1209 else | |
1210 ++s; | |
1211 } | |
1212 if (*s != '(') | |
1213 return FALSE; // ';', ' or " before any () or no '(' | |
1214 | |
1215 while (*s && *s != ';' && *s != '\'' && *s != '"') | |
1216 { | |
1217 if (*s == ')' && cin_nocode(s + 1)) | |
1218 { | |
1219 // ')' at the end: may have found a match | |
1220 // Check for he previous line not to end in a backslash: | |
1221 // #if defined(x) && {backslash} | |
1222 // defined(y) | |
1223 lnum = first_lnum - 1; | |
1224 s = ml_get(lnum); | |
1225 if (*s == NUL || s[STRLEN(s) - 1] != '\\') | |
1226 retval = TRUE; | |
1227 goto done; | |
1228 } | |
1229 if ((*s == ',' && cin_nocode(s + 1)) || s[1] == NUL || cin_nocode(s)) | |
1230 { | |
1231 int comma = (*s == ','); | |
1232 | |
1233 // ',' at the end: continue looking in the next line. | |
1234 // At the end: check for ',' in the next line, for this style: | |
1235 // func(arg1 | |
1236 // , arg2) | |
1237 for (;;) | |
1238 { | |
1239 if (lnum >= curbuf->b_ml.ml_line_count) | |
1240 break; | |
1241 s = ml_get(++lnum); | |
1242 if (!cin_ispreproc(s)) | |
1243 break; | |
1244 } | |
1245 if (lnum >= curbuf->b_ml.ml_line_count) | |
1246 break; | |
1247 // Require a comma at end of the line or a comma or ')' at the | |
1248 // start of next line. | |
1249 s = skipwhite(s); | |
1250 if (!just_started && (!comma && *s != ',' && *s != ')')) | |
1251 break; | |
1252 just_started = FALSE; | |
1253 } | |
1254 else if (cin_iscomment(s)) // ignore comments | |
1255 s = cin_skipcomment(s); | |
1256 else | |
1257 { | |
1258 ++s; | |
1259 just_started = FALSE; | |
1260 } | |
1261 } | |
1262 | |
1263 done: | |
1264 if (lnum != first_lnum && sp != NULL) | |
1265 *sp = ml_get(first_lnum); | |
1266 | |
1267 return retval; | |
1268 } | |
1269 | |
1270 static int | |
1271 cin_isif(char_u *p) | |
1272 { | |
1273 return (STRNCMP(p, "if", 2) == 0 && !vim_isIDc(p[2])); | |
1274 } | |
1275 | |
1276 static int | |
1277 cin_isdo(char_u *p) | |
1278 { | |
1279 return (STRNCMP(p, "do", 2) == 0 && !vim_isIDc(p[2])); | |
1280 } | |
1281 | |
1282 /* | |
1283 * Check if this is a "while" that should have a matching "do". | |
1284 * We only accept a "while (condition) ;", with only white space between the | |
1285 * ')' and ';'. The condition may be spread over several lines. | |
1286 */ | |
1287 static int | |
1288 cin_iswhileofdo (char_u *p, linenr_T lnum) // XXX | |
1289 { | |
1290 pos_T cursor_save; | |
1291 pos_T *trypos; | |
1292 int retval = FALSE; | |
1293 | |
1294 p = cin_skipcomment(p); | |
1295 if (*p == '}') // accept "} while (cond);" | |
1296 p = cin_skipcomment(p + 1); | |
1297 if (cin_starts_with(p, "while")) | |
1298 { | |
1299 cursor_save = curwin->w_cursor; | |
1300 curwin->w_cursor.lnum = lnum; | |
1301 curwin->w_cursor.col = 0; | |
1302 p = ml_get_curline(); | |
1303 while (*p && *p != 'w') // skip any '}', until the 'w' of the "while" | |
1304 { | |
1305 ++p; | |
1306 ++curwin->w_cursor.col; | |
1307 } | |
1308 if ((trypos = findmatchlimit(NULL, 0, 0, | |
1309 curbuf->b_ind_maxparen)) != NULL | |
1310 && *cin_skipcomment(ml_get_pos(trypos) + 1) == ';') | |
1311 retval = TRUE; | |
1312 curwin->w_cursor = cursor_save; | |
1313 } | |
1314 return retval; | |
1315 } | |
1316 | |
1317 /* | |
1318 * Check whether in "p" there is an "if", "for" or "while" before "*poffset". | |
1319 * Return 0 if there is none. | |
1320 * Otherwise return !0 and update "*poffset" to point to the place where the | |
1321 * string was found. | |
1322 */ | |
1323 static int | |
1324 cin_is_if_for_while_before_offset(char_u *line, int *poffset) | |
1325 { | |
1326 int offset = *poffset; | |
1327 | |
1328 if (offset-- < 2) | |
1329 return 0; | |
1330 while (offset > 2 && VIM_ISWHITE(line[offset])) | |
1331 --offset; | |
1332 | |
1333 offset -= 1; | |
1334 if (!STRNCMP(line + offset, "if", 2)) | |
1335 goto probablyFound; | |
1336 | |
1337 if (offset >= 1) | |
1338 { | |
1339 offset -= 1; | |
1340 if (!STRNCMP(line + offset, "for", 3)) | |
1341 goto probablyFound; | |
1342 | |
1343 if (offset >= 2) | |
1344 { | |
1345 offset -= 2; | |
1346 if (!STRNCMP(line + offset, "while", 5)) | |
1347 goto probablyFound; | |
1348 } | |
1349 } | |
1350 return 0; | |
1351 | |
1352 probablyFound: | |
1353 if (!offset || !vim_isIDc(line[offset - 1])) | |
1354 { | |
1355 *poffset = offset; | |
1356 return 1; | |
1357 } | |
1358 return 0; | |
1359 } | |
1360 | |
1361 /* | |
1362 * Return TRUE if we are at the end of a do-while. | |
1363 * do | |
1364 * nothing; | |
1365 * while (foo | |
1366 * && bar); <-- here | |
1367 * Adjust the cursor to the line with "while". | |
1368 */ | |
1369 static int | |
1370 cin_iswhileofdo_end(int terminated) | |
1371 { | |
1372 char_u *line; | |
1373 char_u *p; | |
1374 char_u *s; | |
1375 pos_T *trypos; | |
1376 int i; | |
1377 | |
1378 if (terminated != ';') // there must be a ';' at the end | |
1379 return FALSE; | |
1380 | |
1381 p = line = ml_get_curline(); | |
1382 while (*p != NUL) | |
1383 { | |
1384 p = cin_skipcomment(p); | |
1385 if (*p == ')') | |
1386 { | |
1387 s = skipwhite(p + 1); | |
1388 if (*s == ';' && cin_nocode(s + 1)) | |
1389 { | |
1390 // Found ");" at end of the line, now check there is "while" | |
1391 // before the matching '('. XXX | |
1392 i = (int)(p - line); | |
1393 curwin->w_cursor.col = i; | |
1394 trypos = find_match_paren(curbuf->b_ind_maxparen); | |
1395 if (trypos != NULL) | |
1396 { | |
1397 s = cin_skipcomment(ml_get(trypos->lnum)); | |
1398 if (*s == '}') // accept "} while (cond);" | |
1399 s = cin_skipcomment(s + 1); | |
1400 if (cin_starts_with(s, "while")) | |
1401 { | |
1402 curwin->w_cursor.lnum = trypos->lnum; | |
1403 return TRUE; | |
1404 } | |
1405 } | |
1406 | |
1407 // Searching may have made "line" invalid, get it again. | |
1408 line = ml_get_curline(); | |
1409 p = line + i; | |
1410 } | |
1411 } | |
1412 if (*p != NUL) | |
1413 ++p; | |
1414 } | |
1415 return FALSE; | |
1416 } | |
1417 | |
1418 static int | |
1419 cin_isbreak(char_u *p) | |
1420 { | |
1421 return (STRNCMP(p, "break", 5) == 0 && !vim_isIDc(p[5])); | |
1422 } | |
1423 | |
1424 /* | |
1425 * Find the position of a C++ base-class declaration or | |
1426 * constructor-initialization. eg: | |
1427 * | |
1428 * class MyClass : | |
1429 * baseClass <-- here | |
1430 * class MyClass : public baseClass, | |
1431 * anotherBaseClass <-- here (should probably lineup ??) | |
1432 * MyClass::MyClass(...) : | |
1433 * baseClass(...) <-- here (constructor-initialization) | |
1434 * | |
1435 * This is a lot of guessing. Watch out for "cond ? func() : foo". | |
1436 */ | |
1437 static int | |
1438 cin_is_cpp_baseclass( | |
1439 cpp_baseclass_cache_T *cached) // input and output | |
1440 { | |
1441 lpos_T *pos = &cached->lpos; // find position | |
1442 char_u *s; | |
1443 int class_or_struct, lookfor_ctor_init, cpp_base_class; | |
1444 linenr_T lnum = curwin->w_cursor.lnum; | |
1445 char_u *line = ml_get_curline(); | |
1446 | |
1447 if (pos->lnum <= lnum) | |
1448 return cached->found; // Use the cached result | |
1449 | |
1450 pos->col = 0; | |
1451 | |
1452 s = skipwhite(line); | |
1453 if (*s == '#') // skip #define FOO x ? (x) : x | |
1454 return FALSE; | |
1455 s = cin_skipcomment(s); | |
1456 if (*s == NUL) | |
1457 return FALSE; | |
1458 | |
1459 cpp_base_class = lookfor_ctor_init = class_or_struct = FALSE; | |
1460 | |
1461 // Search for a line starting with '#', empty, ending in ';' or containing | |
1462 // '{' or '}' and start below it. This handles the following situations: | |
1463 // a = cond ? | |
1464 // func() : | |
1465 // asdf; | |
1466 // func::foo() | |
1467 // : something | |
1468 // {} | |
1469 // Foo::Foo (int one, int two) | |
1470 // : something(4), | |
1471 // somethingelse(3) | |
1472 // {} | |
1473 while (lnum > 1) | |
1474 { | |
1475 line = ml_get(lnum - 1); | |
1476 s = skipwhite(line); | |
1477 if (*s == '#' || *s == NUL) | |
1478 break; | |
1479 while (*s != NUL) | |
1480 { | |
1481 s = cin_skipcomment(s); | |
1482 if (*s == '{' || *s == '}' | |
1483 || (*s == ';' && cin_nocode(s + 1))) | |
1484 break; | |
1485 if (*s != NUL) | |
1486 ++s; | |
1487 } | |
1488 if (*s != NUL) | |
1489 break; | |
1490 --lnum; | |
1491 } | |
1492 | |
1493 pos->lnum = lnum; | |
1494 line = ml_get(lnum); | |
1495 s = line; | |
1496 for (;;) | |
1497 { | |
1498 if (*s == NUL) | |
1499 { | |
1500 if (lnum == curwin->w_cursor.lnum) | |
1501 break; | |
1502 // Continue in the cursor line. | |
1503 line = ml_get(++lnum); | |
1504 s = line; | |
1505 } | |
1506 if (s == line) | |
1507 { | |
1508 // don't recognize "case (foo):" as a baseclass | |
1509 if (cin_iscase(s, FALSE)) | |
1510 break; | |
1511 s = cin_skipcomment(line); | |
1512 if (*s == NUL) | |
1513 continue; | |
1514 } | |
1515 | |
1516 if (s[0] == '"' || (s[0] == 'R' && s[1] == '"')) | |
1517 s = skip_string(s) + 1; | |
1518 else if (s[0] == ':') | |
1519 { | |
1520 if (s[1] == ':') | |
1521 { | |
1522 // skip double colon. It can't be a constructor | |
1523 // initialization any more | |
1524 lookfor_ctor_init = FALSE; | |
1525 s = cin_skipcomment(s + 2); | |
1526 } | |
1527 else if (lookfor_ctor_init || class_or_struct) | |
1528 { | |
1529 // we have something found, that looks like the start of | |
1530 // cpp-base-class-declaration or constructor-initialization | |
1531 cpp_base_class = TRUE; | |
1532 lookfor_ctor_init = class_or_struct = FALSE; | |
1533 pos->col = 0; | |
1534 s = cin_skipcomment(s + 1); | |
1535 } | |
1536 else | |
1537 s = cin_skipcomment(s + 1); | |
1538 } | |
1539 else if ((STRNCMP(s, "class", 5) == 0 && !vim_isIDc(s[5])) | |
1540 || (STRNCMP(s, "struct", 6) == 0 && !vim_isIDc(s[6]))) | |
1541 { | |
1542 class_or_struct = TRUE; | |
1543 lookfor_ctor_init = FALSE; | |
1544 | |
1545 if (*s == 'c') | |
1546 s = cin_skipcomment(s + 5); | |
1547 else | |
1548 s = cin_skipcomment(s + 6); | |
1549 } | |
1550 else | |
1551 { | |
1552 if (s[0] == '{' || s[0] == '}' || s[0] == ';') | |
1553 { | |
1554 cpp_base_class = lookfor_ctor_init = class_or_struct = FALSE; | |
1555 } | |
1556 else if (s[0] == ')') | |
1557 { | |
1558 // Constructor-initialization is assumed if we come across | |
1559 // something like "):" | |
1560 class_or_struct = FALSE; | |
1561 lookfor_ctor_init = TRUE; | |
1562 } | |
1563 else if (s[0] == '?') | |
1564 { | |
1565 // Avoid seeing '() :' after '?' as constructor init. | |
1566 return FALSE; | |
1567 } | |
1568 else if (!vim_isIDc(s[0])) | |
1569 { | |
1570 // if it is not an identifier, we are wrong | |
1571 class_or_struct = FALSE; | |
1572 lookfor_ctor_init = FALSE; | |
1573 } | |
1574 else if (pos->col == 0) | |
1575 { | |
1576 // it can't be a constructor-initialization any more | |
1577 lookfor_ctor_init = FALSE; | |
1578 | |
1579 // the first statement starts here: lineup with this one... | |
1580 if (cpp_base_class) | |
1581 pos->col = (colnr_T)(s - line); | |
1582 } | |
1583 | |
1584 // When the line ends in a comma don't align with it. | |
1585 if (lnum == curwin->w_cursor.lnum && *s == ',' && cin_nocode(s + 1)) | |
1586 pos->col = 0; | |
1587 | |
1588 s = cin_skipcomment(s + 1); | |
1589 } | |
1590 } | |
1591 | |
1592 cached->found = cpp_base_class; | |
1593 if (cpp_base_class) | |
1594 pos->lnum = lnum; | |
1595 return cpp_base_class; | |
1596 } | |
1597 | |
1598 static int | |
1599 get_baseclass_amount(int col) | |
1600 { | |
1601 int amount; | |
1602 colnr_T vcol; | |
1603 pos_T *trypos; | |
1604 | |
1605 if (col == 0) | |
1606 { | |
1607 amount = get_indent(); | |
1608 if (find_last_paren(ml_get_curline(), '(', ')') | |
1609 && (trypos = find_match_paren(curbuf->b_ind_maxparen)) != NULL) | |
1610 amount = get_indent_lnum(trypos->lnum); // XXX | |
1611 if (!cin_ends_in(ml_get_curline(), (char_u *)",", NULL)) | |
1612 amount += curbuf->b_ind_cpp_baseclass; | |
1613 } | |
1614 else | |
1615 { | |
1616 curwin->w_cursor.col = col; | |
1617 getvcol(curwin, &curwin->w_cursor, &vcol, NULL, NULL); | |
1618 amount = (int)vcol; | |
1619 } | |
1620 if (amount < curbuf->b_ind_cpp_baseclass) | |
1621 amount = curbuf->b_ind_cpp_baseclass; | |
1622 return amount; | |
1623 } | |
1624 | |
1625 /* | |
1626 * Find the '{' at the start of the block we are in. | |
1627 * Return NULL if no match found. | |
1628 * Ignore a '{' that is in a comment, makes indenting the next three lines | |
1629 * work. | |
1630 */ | |
1631 /* foo() */ | |
1632 /* { */ | |
1633 /* } */ | |
1634 | |
1635 static pos_T * | |
1636 find_start_brace(void) // XXX | |
1637 { | |
1638 pos_T cursor_save; | |
1639 pos_T *trypos; | |
1640 pos_T *pos; | |
1641 static pos_T pos_copy; | |
1642 | |
1643 cursor_save = curwin->w_cursor; | |
1644 while ((trypos = findmatchlimit(NULL, '{', FM_BLOCKSTOP, 0)) != NULL) | |
1645 { | |
1646 pos_copy = *trypos; // copy pos_T, next findmatch will change it | |
1647 trypos = &pos_copy; | |
1648 curwin->w_cursor = *trypos; | |
1649 pos = NULL; | |
1650 // ignore the { if it's in a // or / * * / comment | |
1651 if ((colnr_T)cin_skip2pos(trypos) == trypos->col | |
1652 && (pos = ind_find_start_CORS(NULL)) == NULL) // XXX | |
1653 break; | |
1654 if (pos != NULL) | |
1655 curwin->w_cursor.lnum = pos->lnum; | |
1656 } | |
1657 curwin->w_cursor = cursor_save; | |
1658 return trypos; | |
1659 } | |
1660 | |
1661 /* | |
1662 * Find the matching '(', ignoring it if it is in a comment or before an | |
1663 * unmatched {. | |
1664 * Return NULL if no match found. | |
1665 */ | |
1666 static pos_T * | |
1667 find_match_paren_after_brace (int ind_maxparen) // XXX | |
1668 { | |
1669 pos_T *trypos = find_match_paren(ind_maxparen); | |
1670 | |
1671 if (trypos != NULL) | |
1672 { | |
1673 pos_T *tryposBrace = find_start_brace(); | |
1674 | |
1675 // If both an unmatched '(' and '{' is found. Ignore the '(' | |
1676 // position if the '{' is further down. | |
1677 if (tryposBrace != NULL | |
1678 && (trypos->lnum != tryposBrace->lnum | |
1679 ? trypos->lnum < tryposBrace->lnum | |
1680 : trypos->col < tryposBrace->col)) | |
1681 trypos = NULL; | |
1682 } | |
1683 return trypos; | |
1684 } | |
1685 | |
1686 /* | |
1687 * Return ind_maxparen corrected for the difference in line number between the | |
1688 * cursor position and "startpos". This makes sure that searching for a | |
1689 * matching paren above the cursor line doesn't find a match because of | |
1690 * looking a few lines further. | |
1691 */ | |
1692 static int | |
1693 corr_ind_maxparen(pos_T *startpos) | |
1694 { | |
1695 long n = (long)startpos->lnum - (long)curwin->w_cursor.lnum; | |
1696 | |
1697 if (n > 0 && n < curbuf->b_ind_maxparen / 2) | |
1698 return curbuf->b_ind_maxparen - (int)n; | |
1699 return curbuf->b_ind_maxparen; | |
1700 } | |
1701 | |
1702 /* | |
1703 * Parse 'cinoptions' and set the values in "curbuf". | |
1704 * Must be called when 'cinoptions', 'shiftwidth' and/or 'tabstop' changes. | |
1705 */ | |
1706 void | |
1707 parse_cino(buf_T *buf) | |
1708 { | |
1709 char_u *p; | |
1710 char_u *l; | |
1711 char_u *digits; | |
1712 int n; | |
1713 int divider; | |
1714 int fraction = 0; | |
1715 int sw = (int)get_sw_value(buf); | |
1716 | |
1717 // Set the default values. | |
1718 | |
1719 // Spaces from a block's opening brace the prevailing indent for that | |
1720 // block should be. | |
1721 buf->b_ind_level = sw; | |
1722 | |
1723 // Spaces from the edge of the line an open brace that's at the end of a | |
1724 // line is imagined to be. | |
1725 buf->b_ind_open_imag = 0; | |
1726 | |
1727 // Spaces from the prevailing indent for a line that is not preceded by | |
1728 // an opening brace. | |
1729 buf->b_ind_no_brace = 0; | |
1730 | |
1731 // Column where the first { of a function should be located }. | |
1732 buf->b_ind_first_open = 0; | |
1733 | |
1734 // Spaces from the prevailing indent a leftmost open brace should be | |
1735 // located. | |
1736 buf->b_ind_open_extra = 0; | |
1737 | |
1738 // Spaces from the matching open brace (real location for one at the left | |
1739 // edge; imaginary location from one that ends a line) the matching close | |
1740 // brace should be located. | |
1741 buf->b_ind_close_extra = 0; | |
1742 | |
1743 // Spaces from the edge of the line an open brace sitting in the leftmost | |
1744 // column is imagined to be. | |
1745 buf->b_ind_open_left_imag = 0; | |
1746 | |
1747 // Spaces jump labels should be shifted to the left if N is non-negative, | |
1748 // otherwise the jump label will be put to column 1. | |
1749 buf->b_ind_jump_label = -1; | |
1750 | |
1751 // Spaces from the switch() indent a "case xx" label should be located. | |
1752 buf->b_ind_case = sw; | |
1753 | |
1754 // Spaces from the "case xx:" code after a switch() should be located. | |
1755 buf->b_ind_case_code = sw; | |
1756 | |
1757 // Lineup break at end of case in switch() with case label. | |
1758 buf->b_ind_case_break = 0; | |
1759 | |
1760 // Spaces from the class declaration indent a scope declaration label | |
1761 // should be located. | |
1762 buf->b_ind_scopedecl = sw; | |
1763 | |
1764 // Spaces from the scope declaration label code should be located. | |
1765 buf->b_ind_scopedecl_code = sw; | |
1766 | |
1767 // Amount K&R-style parameters should be indented. | |
1768 buf->b_ind_param = sw; | |
1769 | |
1770 // Amount a function type spec should be indented. | |
1771 buf->b_ind_func_type = sw; | |
1772 | |
1773 // Amount a cpp base class declaration or constructor initialization | |
1774 // should be indented. | |
1775 buf->b_ind_cpp_baseclass = sw; | |
1776 | |
1777 // additional spaces beyond the prevailing indent a continuation line | |
1778 // should be located. | |
1779 buf->b_ind_continuation = sw; | |
1780 | |
1781 // Spaces from the indent of the line with an unclosed parentheses. | |
1782 buf->b_ind_unclosed = sw * 2; | |
1783 | |
1784 // Spaces from the indent of the line with an unclosed parentheses, which | |
1785 // itself is also unclosed. | |
1786 buf->b_ind_unclosed2 = sw; | |
1787 | |
1788 // Suppress ignoring spaces from the indent of a line starting with an | |
1789 // unclosed parentheses. | |
1790 buf->b_ind_unclosed_noignore = 0; | |
1791 | |
1792 // If the opening paren is the last nonwhite character on the line, and | |
1793 // b_ind_unclosed_wrapped is nonzero, use this indent relative to the outer | |
1794 // context (for very long lines). | |
1795 buf->b_ind_unclosed_wrapped = 0; | |
1796 | |
1797 // Suppress ignoring white space when lining up with the character after | |
1798 // an unclosed parentheses. | |
1799 buf->b_ind_unclosed_whiteok = 0; | |
1800 | |
1801 // Indent a closing parentheses under the line start of the matching | |
1802 // opening parentheses. | |
1803 buf->b_ind_matching_paren = 0; | |
1804 | |
1805 // Indent a closing parentheses under the previous line. | |
1806 buf->b_ind_paren_prev = 0; | |
1807 | |
1808 // Extra indent for comments. | |
1809 buf->b_ind_comment = 0; | |
1810 | |
1811 // Spaces from the comment opener when there is nothing after it. | |
1812 buf->b_ind_in_comment = 3; | |
1813 | |
1814 // Boolean: if non-zero, use b_ind_in_comment even if there is something | |
1815 // after the comment opener. | |
1816 buf->b_ind_in_comment2 = 0; | |
1817 | |
1818 // Max lines to search for an open paren. | |
1819 buf->b_ind_maxparen = 20; | |
1820 | |
1821 // Max lines to search for an open comment. | |
1822 buf->b_ind_maxcomment = 70; | |
1823 | |
1824 // Handle braces for java code. | |
1825 buf->b_ind_java = 0; | |
1826 | |
1827 // Not to confuse JS object properties with labels. | |
1828 buf->b_ind_js = 0; | |
1829 | |
1830 // Handle blocked cases correctly. | |
1831 buf->b_ind_keep_case_label = 0; | |
1832 | |
1833 // Handle C++ namespace. | |
1834 buf->b_ind_cpp_namespace = 0; | |
1835 | |
1836 // Handle continuation lines containing conditions of if(), for() and | |
1837 // while(). | |
1838 buf->b_ind_if_for_while = 0; | |
1839 | |
1840 // indentation for # comments | |
1841 buf->b_ind_hash_comment = 0; | |
1842 | |
1843 // Handle C++ extern "C" or "C++" | |
1844 buf->b_ind_cpp_extern_c = 0; | |
1845 | |
1846 for (p = buf->b_p_cino; *p; ) | |
1847 { | |
1848 l = p++; | |
1849 if (*p == '-') | |
1850 ++p; | |
1851 digits = p; // remember where the digits start | |
1852 n = getdigits(&p); | |
1853 divider = 0; | |
1854 if (*p == '.') // ".5s" means a fraction | |
1855 { | |
1856 fraction = atol((char *)++p); | |
1857 while (VIM_ISDIGIT(*p)) | |
1858 { | |
1859 ++p; | |
1860 if (divider) | |
1861 divider *= 10; | |
1862 else | |
1863 divider = 10; | |
1864 } | |
1865 } | |
1866 if (*p == 's') // "2s" means two times 'shiftwidth' | |
1867 { | |
1868 if (p == digits) | |
1869 n = sw; // just "s" is one 'shiftwidth' | |
1870 else | |
1871 { | |
1872 n *= sw; | |
1873 if (divider) | |
1874 n += (sw * fraction + divider / 2) / divider; | |
1875 } | |
1876 ++p; | |
1877 } | |
1878 if (l[1] == '-') | |
1879 n = -n; | |
1880 | |
1881 // When adding an entry here, also update the default 'cinoptions' in | |
1882 // doc/indent.txt, and add explanation for it! | |
1883 switch (*l) | |
1884 { | |
1885 case '>': buf->b_ind_level = n; break; | |
1886 case 'e': buf->b_ind_open_imag = n; break; | |
1887 case 'n': buf->b_ind_no_brace = n; break; | |
1888 case 'f': buf->b_ind_first_open = n; break; | |
1889 case '{': buf->b_ind_open_extra = n; break; | |
1890 case '}': buf->b_ind_close_extra = n; break; | |
1891 case '^': buf->b_ind_open_left_imag = n; break; | |
1892 case 'L': buf->b_ind_jump_label = n; break; | |
1893 case ':': buf->b_ind_case = n; break; | |
1894 case '=': buf->b_ind_case_code = n; break; | |
1895 case 'b': buf->b_ind_case_break = n; break; | |
1896 case 'p': buf->b_ind_param = n; break; | |
1897 case 't': buf->b_ind_func_type = n; break; | |
1898 case '/': buf->b_ind_comment = n; break; | |
1899 case 'c': buf->b_ind_in_comment = n; break; | |
1900 case 'C': buf->b_ind_in_comment2 = n; break; | |
1901 case 'i': buf->b_ind_cpp_baseclass = n; break; | |
1902 case '+': buf->b_ind_continuation = n; break; | |
1903 case '(': buf->b_ind_unclosed = n; break; | |
1904 case 'u': buf->b_ind_unclosed2 = n; break; | |
1905 case 'U': buf->b_ind_unclosed_noignore = n; break; | |
1906 case 'W': buf->b_ind_unclosed_wrapped = n; break; | |
1907 case 'w': buf->b_ind_unclosed_whiteok = n; break; | |
1908 case 'm': buf->b_ind_matching_paren = n; break; | |
1909 case 'M': buf->b_ind_paren_prev = n; break; | |
1910 case ')': buf->b_ind_maxparen = n; break; | |
1911 case '*': buf->b_ind_maxcomment = n; break; | |
1912 case 'g': buf->b_ind_scopedecl = n; break; | |
1913 case 'h': buf->b_ind_scopedecl_code = n; break; | |
1914 case 'j': buf->b_ind_java = n; break; | |
1915 case 'J': buf->b_ind_js = n; break; | |
1916 case 'l': buf->b_ind_keep_case_label = n; break; | |
1917 case '#': buf->b_ind_hash_comment = n; break; | |
1918 case 'N': buf->b_ind_cpp_namespace = n; break; | |
1919 case 'k': buf->b_ind_if_for_while = n; break; | |
1920 case 'E': buf->b_ind_cpp_extern_c = n; break; | |
1921 } | |
1922 if (*p == ',') | |
1923 ++p; | |
1924 } | |
1925 } | |
1926 | |
1927 static int | |
1928 find_match(int lookfor, linenr_T ourscope) | |
1929 { | |
1930 char_u *look; | |
1931 pos_T *theirscope; | |
1932 char_u *mightbeif; | |
1933 int elselevel; | |
1934 int whilelevel; | |
1935 | |
1936 if (lookfor == LOOKFOR_IF) | |
1937 { | |
1938 elselevel = 1; | |
1939 whilelevel = 0; | |
1940 } | |
1941 else | |
1942 { | |
1943 elselevel = 0; | |
1944 whilelevel = 1; | |
1945 } | |
1946 | |
1947 curwin->w_cursor.col = 0; | |
1948 | |
1949 while (curwin->w_cursor.lnum > ourscope + 1) | |
1950 { | |
1951 curwin->w_cursor.lnum--; | |
1952 curwin->w_cursor.col = 0; | |
1953 | |
1954 look = cin_skipcomment(ml_get_curline()); | |
1955 if (cin_iselse(look) | |
1956 || cin_isif(look) | |
1957 || cin_isdo(look) // XXX | |
1958 || cin_iswhileofdo(look, curwin->w_cursor.lnum)) | |
1959 { | |
1960 // if we've gone outside the braces entirely, | |
1961 // we must be out of scope... | |
1962 theirscope = find_start_brace(); // XXX | |
1963 if (theirscope == NULL) | |
1964 break; | |
1965 | |
1966 // and if the brace enclosing this is further | |
1967 // back than the one enclosing the else, we're | |
1968 // out of luck too. | |
1969 if (theirscope->lnum < ourscope) | |
1970 break; | |
1971 | |
1972 // and if they're enclosed in a *deeper* brace, | |
1973 // then we can ignore it because it's in a | |
1974 // different scope... | |
1975 if (theirscope->lnum > ourscope) | |
1976 continue; | |
1977 | |
1978 // if it was an "else" (that's not an "else if") | |
1979 // then we need to go back to another if, so | |
1980 // increment elselevel | |
1981 look = cin_skipcomment(ml_get_curline()); | |
1982 if (cin_iselse(look)) | |
1983 { | |
1984 mightbeif = cin_skipcomment(look + 4); | |
1985 if (!cin_isif(mightbeif)) | |
1986 ++elselevel; | |
1987 continue; | |
1988 } | |
1989 | |
1990 // if it was a "while" then we need to go back to | |
1991 // another "do", so increment whilelevel. XXX | |
1992 if (cin_iswhileofdo(look, curwin->w_cursor.lnum)) | |
1993 { | |
1994 ++whilelevel; | |
1995 continue; | |
1996 } | |
1997 | |
1998 // If it's an "if" decrement elselevel | |
1999 look = cin_skipcomment(ml_get_curline()); | |
2000 if (cin_isif(look)) | |
2001 { | |
2002 elselevel--; | |
2003 // When looking for an "if" ignore "while"s that | |
2004 // get in the way. | |
2005 if (elselevel == 0 && lookfor == LOOKFOR_IF) | |
2006 whilelevel = 0; | |
2007 } | |
2008 | |
2009 // If it's a "do" decrement whilelevel | |
2010 if (cin_isdo(look)) | |
2011 whilelevel--; | |
2012 | |
2013 // if we've used up all the elses, then | |
2014 // this must be the if that we want! | |
2015 // match the indent level of that if. | |
2016 if (elselevel <= 0 && whilelevel <= 0) | |
2017 return OK; | |
2018 } | |
2019 } | |
2020 return FAIL; | |
2021 } | |
2022 | |
2023 /* | |
2024 * Return the desired indent for C code. | |
2025 * Return -1 if the indent should be left alone (inside a raw string). | |
2026 */ | |
2027 int | |
2028 get_c_indent(void) | |
2029 { | |
2030 pos_T cur_curpos; | |
2031 int amount; | |
2032 int scope_amount; | |
2033 int cur_amount = MAXCOL; | |
2034 colnr_T col; | |
2035 char_u *theline; | |
2036 char_u *linecopy; | |
2037 pos_T *trypos; | |
2038 pos_T *comment_pos; | |
2039 pos_T *tryposBrace = NULL; | |
2040 pos_T tryposCopy; | |
2041 pos_T our_paren_pos; | |
2042 char_u *start; | |
2043 int start_brace; | |
2044 #define BRACE_IN_COL0 1 // '{' is in column 0 | |
2045 #define BRACE_AT_START 2 // '{' is at start of line | |
2046 #define BRACE_AT_END 3 // '{' is at end of line | |
2047 linenr_T ourscope; | |
2048 char_u *l; | |
2049 char_u *look; | |
2050 char_u terminated; | |
2051 int lookfor; | |
2052 int whilelevel; | |
2053 linenr_T lnum; | |
2054 int n; | |
2055 int iscase; | |
2056 int lookfor_break; | |
2057 int lookfor_cpp_namespace = FALSE; | |
2058 int cont_amount = 0; // amount for continuation line | |
2059 int original_line_islabel; | |
2060 int added_to_amount = 0; | |
2061 int js_cur_has_key = 0; | |
2062 linenr_T raw_string_start = 0; | |
2063 cpp_baseclass_cache_T cache_cpp_baseclass = { FALSE, { MAXLNUM, 0 } }; | |
2064 | |
2065 // make a copy, value is changed below | |
2066 int ind_continuation = curbuf->b_ind_continuation; | |
2067 | |
2068 // remember where the cursor was when we started | |
2069 cur_curpos = curwin->w_cursor; | |
2070 | |
2071 // if we are at line 1 zero indent is fine, right? | |
2072 if (cur_curpos.lnum == 1) | |
2073 return 0; | |
2074 | |
2075 // Get a copy of the current contents of the line. | |
2076 // This is required, because only the most recent line obtained with | |
2077 // ml_get is valid! | |
2078 linecopy = vim_strsave(ml_get(cur_curpos.lnum)); | |
2079 if (linecopy == NULL) | |
2080 return 0; | |
2081 | |
2082 // In insert mode and the cursor is on a ')' truncate the line at the | |
2083 // cursor position. We don't want to line up with the matching '(' when | |
2084 // inserting new stuff. | |
2085 // For unknown reasons the cursor might be past the end of the line, thus | |
2086 // check for that. | |
2087 if ((State & INSERT) | |
2088 && curwin->w_cursor.col < (colnr_T)STRLEN(linecopy) | |
2089 && linecopy[curwin->w_cursor.col] == ')') | |
2090 linecopy[curwin->w_cursor.col] = NUL; | |
2091 | |
2092 theline = skipwhite(linecopy); | |
2093 | |
2094 // move the cursor to the start of the line | |
2095 | |
2096 curwin->w_cursor.col = 0; | |
2097 | |
2098 original_line_islabel = cin_islabel(); // XXX | |
2099 | |
2100 // If we are inside a raw string don't change the indent. | |
2101 // Ignore a raw string inside a comment. | |
2102 comment_pos = ind_find_start_comment(); | |
2103 if (comment_pos != NULL) | |
2104 { | |
2105 // findmatchlimit() static pos is overwritten, make a copy | |
2106 tryposCopy = *comment_pos; | |
2107 comment_pos = &tryposCopy; | |
2108 } | |
2109 trypos = find_start_rawstring(curbuf->b_ind_maxcomment); | |
2110 if (trypos != NULL && (comment_pos == NULL | |
2111 || LT_POS(*trypos, *comment_pos))) | |
2112 { | |
2113 amount = -1; | |
2114 goto laterend; | |
2115 } | |
2116 | |
2117 // #defines and so on always go at the left when included in 'cinkeys'. | |
2118 if (*theline == '#' && (*linecopy == '#' || in_cinkeys('#', ' ', TRUE))) | |
2119 { | |
2120 amount = curbuf->b_ind_hash_comment; | |
2121 goto theend; | |
2122 } | |
2123 | |
2124 // Is it a non-case label? Then that goes at the left margin too unless: | |
2125 // - JS flag is set. | |
2126 // - 'L' item has a positive value. | |
2127 if (original_line_islabel && !curbuf->b_ind_js | |
2128 && curbuf->b_ind_jump_label < 0) | |
2129 { | |
2130 amount = 0; | |
2131 goto theend; | |
2132 } | |
2133 | |
2134 // If we're inside a "//" comment and there is a "//" comment in a | |
2135 // previous line, lineup with that one. | |
2136 if (cin_islinecomment(theline) | |
2137 && (trypos = find_line_comment()) != NULL) // XXX | |
2138 { | |
2139 // find how indented the line beginning the comment is | |
2140 getvcol(curwin, trypos, &col, NULL, NULL); | |
2141 amount = col; | |
2142 goto theend; | |
2143 } | |
2144 | |
2145 // If we're inside a comment and not looking at the start of the | |
2146 // comment, try using the 'comments' option. | |
2147 if (!cin_iscomment(theline) && comment_pos != NULL) // XXX | |
2148 { | |
2149 int lead_start_len = 2; | |
2150 int lead_middle_len = 1; | |
2151 char_u lead_start[COM_MAX_LEN]; // start-comment string | |
2152 char_u lead_middle[COM_MAX_LEN]; // middle-comment string | |
2153 char_u lead_end[COM_MAX_LEN]; // end-comment string | |
2154 char_u *p; | |
2155 int start_align = 0; | |
2156 int start_off = 0; | |
2157 int done = FALSE; | |
2158 | |
2159 // find how indented the line beginning the comment is | |
2160 getvcol(curwin, comment_pos, &col, NULL, NULL); | |
2161 amount = col; | |
2162 *lead_start = NUL; | |
2163 *lead_middle = NUL; | |
2164 | |
2165 p = curbuf->b_p_com; | |
2166 while (*p != NUL) | |
2167 { | |
2168 int align = 0; | |
2169 int off = 0; | |
2170 int what = 0; | |
2171 | |
2172 while (*p != NUL && *p != ':') | |
2173 { | |
2174 if (*p == COM_START || *p == COM_END || *p == COM_MIDDLE) | |
2175 what = *p++; | |
2176 else if (*p == COM_LEFT || *p == COM_RIGHT) | |
2177 align = *p++; | |
2178 else if (VIM_ISDIGIT(*p) || *p == '-') | |
2179 off = getdigits(&p); | |
2180 else | |
2181 ++p; | |
2182 } | |
2183 | |
2184 if (*p == ':') | |
2185 ++p; | |
2186 (void)copy_option_part(&p, lead_end, COM_MAX_LEN, ","); | |
2187 if (what == COM_START) | |
2188 { | |
2189 STRCPY(lead_start, lead_end); | |
2190 lead_start_len = (int)STRLEN(lead_start); | |
2191 start_off = off; | |
2192 start_align = align; | |
2193 } | |
2194 else if (what == COM_MIDDLE) | |
2195 { | |
2196 STRCPY(lead_middle, lead_end); | |
2197 lead_middle_len = (int)STRLEN(lead_middle); | |
2198 } | |
2199 else if (what == COM_END) | |
2200 { | |
2201 // If our line starts with the middle comment string, line it | |
2202 // up with the comment opener per the 'comments' option. | |
2203 if (STRNCMP(theline, lead_middle, lead_middle_len) == 0 | |
2204 && STRNCMP(theline, lead_end, STRLEN(lead_end)) != 0) | |
2205 { | |
2206 done = TRUE; | |
2207 if (curwin->w_cursor.lnum > 1) | |
2208 { | |
2209 // If the start comment string matches in the previous | |
2210 // line, use the indent of that line plus offset. If | |
2211 // the middle comment string matches in the previous | |
2212 // line, use the indent of that line. XXX | |
2213 look = skipwhite(ml_get(curwin->w_cursor.lnum - 1)); | |
2214 if (STRNCMP(look, lead_start, lead_start_len) == 0) | |
2215 amount = get_indent_lnum(curwin->w_cursor.lnum - 1); | |
2216 else if (STRNCMP(look, lead_middle, | |
2217 lead_middle_len) == 0) | |
2218 { | |
2219 amount = get_indent_lnum(curwin->w_cursor.lnum - 1); | |
2220 break; | |
2221 } | |
2222 // If the start comment string doesn't match with the | |
2223 // start of the comment, skip this entry. XXX | |
2224 else if (STRNCMP(ml_get(comment_pos->lnum) + comment_pos->col, | |
2225 lead_start, lead_start_len) != 0) | |
2226 continue; | |
2227 } | |
2228 if (start_off != 0) | |
2229 amount += start_off; | |
2230 else if (start_align == COM_RIGHT) | |
2231 amount += vim_strsize(lead_start) | |
2232 - vim_strsize(lead_middle); | |
2233 break; | |
2234 } | |
2235 | |
2236 // If our line starts with the end comment string, line it up | |
2237 // with the middle comment | |
2238 if (STRNCMP(theline, lead_middle, lead_middle_len) != 0 | |
2239 && STRNCMP(theline, lead_end, STRLEN(lead_end)) == 0) | |
2240 { | |
2241 amount = get_indent_lnum(curwin->w_cursor.lnum - 1); | |
2242 // XXX | |
2243 if (off != 0) | |
2244 amount += off; | |
2245 else if (align == COM_RIGHT) | |
2246 amount += vim_strsize(lead_start) | |
2247 - vim_strsize(lead_middle); | |
2248 done = TRUE; | |
2249 break; | |
2250 } | |
2251 } | |
2252 } | |
2253 | |
2254 // If our line starts with an asterisk, line up with the | |
2255 // asterisk in the comment opener; otherwise, line up | |
2256 // with the first character of the comment text. | |
2257 if (done) | |
2258 ; | |
2259 else if (theline[0] == '*') | |
2260 amount += 1; | |
2261 else | |
2262 { | |
2263 // If we are more than one line away from the comment opener, take | |
2264 // the indent of the previous non-empty line. If 'cino' has "CO" | |
2265 // and we are just below the comment opener and there are any | |
2266 // white characters after it line up with the text after it; | |
2267 // otherwise, add the amount specified by "c" in 'cino' | |
2268 amount = -1; | |
2269 for (lnum = cur_curpos.lnum - 1; lnum > comment_pos->lnum; --lnum) | |
2270 { | |
2271 if (linewhite(lnum)) // skip blank lines | |
2272 continue; | |
2273 amount = get_indent_lnum(lnum); // XXX | |
2274 break; | |
2275 } | |
2276 if (amount == -1) // use the comment opener | |
2277 { | |
2278 if (!curbuf->b_ind_in_comment2) | |
2279 { | |
2280 start = ml_get(comment_pos->lnum); | |
2281 look = start + comment_pos->col + 2; // skip / and * | |
2282 if (*look != NUL) // if something after it | |
2283 comment_pos->col = (colnr_T)(skipwhite(look) - start); | |
2284 } | |
2285 getvcol(curwin, comment_pos, &col, NULL, NULL); | |
2286 amount = col; | |
2287 if (curbuf->b_ind_in_comment2 || *look == NUL) | |
2288 amount += curbuf->b_ind_in_comment; | |
2289 } | |
2290 } | |
2291 goto theend; | |
2292 } | |
2293 | |
2294 // Are we looking at a ']' that has a match? | |
2295 if (*skipwhite(theline) == ']' | |
2296 && (trypos = find_match_char('[', curbuf->b_ind_maxparen)) != NULL) | |
2297 { | |
2298 // align with the line containing the '['. | |
2299 amount = get_indent_lnum(trypos->lnum); | |
2300 goto theend; | |
2301 } | |
2302 | |
2303 // Are we inside parentheses or braces? XXX | |
2304 if (((trypos = find_match_paren(curbuf->b_ind_maxparen)) != NULL | |
2305 && curbuf->b_ind_java == 0) | |
2306 || (tryposBrace = find_start_brace()) != NULL | |
2307 || trypos != NULL) | |
2308 { | |
2309 if (trypos != NULL && tryposBrace != NULL) | |
2310 { | |
2311 // Both an unmatched '(' and '{' is found. Use the one which is | |
2312 // closer to the current cursor position, set the other to NULL. | |
2313 if (trypos->lnum != tryposBrace->lnum | |
2314 ? trypos->lnum < tryposBrace->lnum | |
2315 : trypos->col < tryposBrace->col) | |
2316 trypos = NULL; | |
2317 else | |
2318 tryposBrace = NULL; | |
2319 } | |
2320 | |
2321 if (trypos != NULL) | |
2322 { | |
2323 // If the matching paren is more than one line away, use the indent of | |
2324 // a previous non-empty line that matches the same paren. | |
2325 if (theline[0] == ')' && curbuf->b_ind_paren_prev) | |
2326 { | |
2327 // Line up with the start of the matching paren line. | |
2328 amount = get_indent_lnum(curwin->w_cursor.lnum - 1); // XXX | |
2329 } | |
2330 else | |
2331 { | |
2332 amount = -1; | |
2333 our_paren_pos = *trypos; | |
2334 for (lnum = cur_curpos.lnum - 1; lnum > our_paren_pos.lnum; --lnum) | |
2335 { | |
2336 l = skipwhite(ml_get(lnum)); | |
2337 if (cin_nocode(l)) // skip comment lines | |
2338 continue; | |
2339 if (cin_ispreproc_cont(&l, &lnum, &amount)) | |
2340 continue; // ignore #define, #if, etc. | |
2341 curwin->w_cursor.lnum = lnum; | |
2342 | |
2343 // Skip a comment or raw string. XXX | |
2344 if ((trypos = ind_find_start_CORS(NULL)) != NULL) | |
2345 { | |
2346 lnum = trypos->lnum + 1; | |
2347 continue; | |
2348 } | |
2349 | |
2350 // XXX | |
2351 if ((trypos = find_match_paren( | |
2352 corr_ind_maxparen(&cur_curpos))) != NULL | |
2353 && trypos->lnum == our_paren_pos.lnum | |
2354 && trypos->col == our_paren_pos.col) | |
2355 { | |
2356 amount = get_indent_lnum(lnum); // XXX | |
2357 | |
2358 if (theline[0] == ')') | |
2359 { | |
2360 if (our_paren_pos.lnum != lnum | |
2361 && cur_amount > amount) | |
2362 cur_amount = amount; | |
2363 amount = -1; | |
2364 } | |
2365 break; | |
2366 } | |
2367 } | |
2368 } | |
2369 | |
2370 // Line up with line where the matching paren is. XXX | |
2371 // If the line starts with a '(' or the indent for unclosed | |
2372 // parentheses is zero, line up with the unclosed parentheses. | |
2373 if (amount == -1) | |
2374 { | |
2375 int ignore_paren_col = 0; | |
2376 int is_if_for_while = 0; | |
2377 | |
2378 if (curbuf->b_ind_if_for_while) | |
2379 { | |
2380 // Look for the outermost opening parenthesis on this line | |
2381 // and check whether it belongs to an "if", "for" or "while". | |
2382 | |
2383 pos_T cursor_save = curwin->w_cursor; | |
2384 pos_T outermost; | |
2385 char_u *line; | |
2386 | |
2387 trypos = &our_paren_pos; | |
2388 do { | |
2389 outermost = *trypos; | |
2390 curwin->w_cursor.lnum = outermost.lnum; | |
2391 curwin->w_cursor.col = outermost.col; | |
2392 | |
2393 trypos = find_match_paren(curbuf->b_ind_maxparen); | |
2394 } while (trypos && trypos->lnum == outermost.lnum); | |
2395 | |
2396 curwin->w_cursor = cursor_save; | |
2397 | |
2398 line = ml_get(outermost.lnum); | |
2399 | |
2400 is_if_for_while = | |
2401 cin_is_if_for_while_before_offset(line, &outermost.col); | |
2402 } | |
2403 | |
2404 amount = skip_label(our_paren_pos.lnum, &look); | |
2405 look = skipwhite(look); | |
2406 if (*look == '(') | |
2407 { | |
2408 linenr_T save_lnum = curwin->w_cursor.lnum; | |
2409 char_u *line; | |
2410 int look_col; | |
2411 | |
2412 // Ignore a '(' in front of the line that has a match before | |
2413 // our matching '('. | |
2414 curwin->w_cursor.lnum = our_paren_pos.lnum; | |
2415 line = ml_get_curline(); | |
2416 look_col = (int)(look - line); | |
2417 curwin->w_cursor.col = look_col + 1; | |
2418 if ((trypos = findmatchlimit(NULL, ')', 0, | |
2419 curbuf->b_ind_maxparen)) | |
2420 != NULL | |
2421 && trypos->lnum == our_paren_pos.lnum | |
2422 && trypos->col < our_paren_pos.col) | |
2423 ignore_paren_col = trypos->col + 1; | |
2424 | |
2425 curwin->w_cursor.lnum = save_lnum; | |
2426 look = ml_get(our_paren_pos.lnum) + look_col; | |
2427 } | |
2428 if (theline[0] == ')' || (curbuf->b_ind_unclosed == 0 | |
2429 && is_if_for_while == 0) | |
2430 || (!curbuf->b_ind_unclosed_noignore && *look == '(' | |
2431 && ignore_paren_col == 0)) | |
2432 { | |
2433 // If we're looking at a close paren, line up right there; | |
2434 // otherwise, line up with the next (non-white) character. | |
2435 // When b_ind_unclosed_wrapped is set and the matching paren is | |
2436 // the last nonwhite character of the line, use either the | |
2437 // indent of the current line or the indentation of the next | |
2438 // outer paren and add b_ind_unclosed_wrapped (for very long | |
2439 // lines). | |
2440 if (theline[0] != ')') | |
2441 { | |
2442 cur_amount = MAXCOL; | |
2443 l = ml_get(our_paren_pos.lnum); | |
2444 if (curbuf->b_ind_unclosed_wrapped | |
2445 && cin_ends_in(l, (char_u *)"(", NULL)) | |
2446 { | |
2447 // look for opening unmatched paren, indent one level | |
2448 // for each additional level | |
2449 n = 1; | |
2450 for (col = 0; col < our_paren_pos.col; ++col) | |
2451 { | |
2452 switch (l[col]) | |
2453 { | |
2454 case '(': | |
2455 case '{': ++n; | |
2456 break; | |
2457 | |
2458 case ')': | |
2459 case '}': if (n > 1) | |
2460 --n; | |
2461 break; | |
2462 } | |
2463 } | |
2464 | |
2465 our_paren_pos.col = 0; | |
2466 amount += n * curbuf->b_ind_unclosed_wrapped; | |
2467 } | |
2468 else if (curbuf->b_ind_unclosed_whiteok) | |
2469 our_paren_pos.col++; | |
2470 else | |
2471 { | |
2472 col = our_paren_pos.col + 1; | |
2473 while (VIM_ISWHITE(l[col])) | |
2474 col++; | |
2475 if (l[col] != NUL) // In case of trailing space | |
2476 our_paren_pos.col = col; | |
2477 else | |
2478 our_paren_pos.col++; | |
2479 } | |
2480 } | |
2481 | |
2482 // Find how indented the paren is, or the character after it | |
2483 // if we did the above "if". | |
2484 if (our_paren_pos.col > 0) | |
2485 { | |
2486 getvcol(curwin, &our_paren_pos, &col, NULL, NULL); | |
2487 if (cur_amount > (int)col) | |
2488 cur_amount = col; | |
2489 } | |
2490 } | |
2491 | |
2492 if (theline[0] == ')' && curbuf->b_ind_matching_paren) | |
2493 { | |
2494 // Line up with the start of the matching paren line. | |
2495 } | |
2496 else if ((curbuf->b_ind_unclosed == 0 && is_if_for_while == 0) | |
2497 || (!curbuf->b_ind_unclosed_noignore | |
2498 && *look == '(' && ignore_paren_col == 0)) | |
2499 { | |
2500 if (cur_amount != MAXCOL) | |
2501 amount = cur_amount; | |
2502 } | |
2503 else | |
2504 { | |
2505 // Add b_ind_unclosed2 for each '(' before our matching one, | |
2506 // but ignore (void) before the line (ignore_paren_col). | |
2507 col = our_paren_pos.col; | |
2508 while ((int)our_paren_pos.col > ignore_paren_col) | |
2509 { | |
2510 --our_paren_pos.col; | |
2511 switch (*ml_get_pos(&our_paren_pos)) | |
2512 { | |
2513 case '(': amount += curbuf->b_ind_unclosed2; | |
2514 col = our_paren_pos.col; | |
2515 break; | |
2516 case ')': amount -= curbuf->b_ind_unclosed2; | |
2517 col = MAXCOL; | |
2518 break; | |
2519 } | |
2520 } | |
2521 | |
2522 // Use b_ind_unclosed once, when the first '(' is not inside | |
2523 // braces | |
2524 if (col == MAXCOL) | |
2525 amount += curbuf->b_ind_unclosed; | |
2526 else | |
2527 { | |
2528 curwin->w_cursor.lnum = our_paren_pos.lnum; | |
2529 curwin->w_cursor.col = col; | |
2530 if (find_match_paren_after_brace(curbuf->b_ind_maxparen) | |
2531 != NULL) | |
2532 amount += curbuf->b_ind_unclosed2; | |
2533 else | |
2534 { | |
2535 if (is_if_for_while) | |
2536 amount += curbuf->b_ind_if_for_while; | |
2537 else | |
2538 amount += curbuf->b_ind_unclosed; | |
2539 } | |
2540 } | |
2541 // For a line starting with ')' use the minimum of the two | |
2542 // positions, to avoid giving it more indent than the previous | |
2543 // lines: | |
2544 // func_long_name( if (x | |
2545 // arg && yy | |
2546 // ) ^ not here ) ^ not here | |
2547 if (cur_amount < amount) | |
2548 amount = cur_amount; | |
2549 } | |
2550 } | |
2551 | |
2552 // add extra indent for a comment | |
2553 if (cin_iscomment(theline)) | |
2554 amount += curbuf->b_ind_comment; | |
2555 } | |
2556 else | |
2557 { | |
2558 // We are inside braces, there is a { before this line at the position | |
2559 // stored in tryposBrace. | |
2560 // Make a copy of tryposBrace, it may point to pos_copy inside | |
2561 // find_start_brace(), which may be changed somewhere. | |
2562 tryposCopy = *tryposBrace; | |
2563 tryposBrace = &tryposCopy; | |
2564 trypos = tryposBrace; | |
2565 ourscope = trypos->lnum; | |
2566 start = ml_get(ourscope); | |
2567 | |
2568 // Now figure out how indented the line is in general. | |
2569 // If the brace was at the start of the line, we use that; | |
2570 // otherwise, check out the indentation of the line as | |
2571 // a whole and then add the "imaginary indent" to that. | |
2572 look = skipwhite(start); | |
2573 if (*look == '{') | |
2574 { | |
2575 getvcol(curwin, trypos, &col, NULL, NULL); | |
2576 amount = col; | |
2577 if (*start == '{') | |
2578 start_brace = BRACE_IN_COL0; | |
2579 else | |
2580 start_brace = BRACE_AT_START; | |
2581 } | |
2582 else | |
2583 { | |
2584 // That opening brace might have been on a continuation | |
2585 // line. if so, find the start of the line. | |
2586 curwin->w_cursor.lnum = ourscope; | |
2587 | |
2588 // Position the cursor over the rightmost paren, so that | |
2589 // matching it will take us back to the start of the line. | |
2590 lnum = ourscope; | |
2591 if (find_last_paren(start, '(', ')') | |
2592 && (trypos = find_match_paren(curbuf->b_ind_maxparen)) | |
2593 != NULL) | |
2594 lnum = trypos->lnum; | |
2595 | |
2596 // It could have been something like | |
2597 // case 1: if (asdf && | |
2598 // ldfd) { | |
2599 // } | |
2600 if ((curbuf->b_ind_js || curbuf->b_ind_keep_case_label) | |
2601 && cin_iscase(skipwhite(ml_get_curline()), FALSE)) | |
2602 amount = get_indent(); | |
2603 else if (curbuf->b_ind_js) | |
2604 amount = get_indent_lnum(lnum); | |
2605 else | |
2606 amount = skip_label(lnum, &l); | |
2607 | |
2608 start_brace = BRACE_AT_END; | |
2609 } | |
2610 | |
2611 // For Javascript check if the line starts with "key:". | |
2612 if (curbuf->b_ind_js) | |
2613 js_cur_has_key = cin_has_js_key(theline); | |
2614 | |
2615 // If we're looking at a closing brace, that's where | |
2616 // we want to be. otherwise, add the amount of room | |
2617 // that an indent is supposed to be. | |
2618 if (theline[0] == '}') | |
2619 { | |
2620 // they may want closing braces to line up with something | |
2621 // other than the open brace. indulge them, if so. | |
2622 amount += curbuf->b_ind_close_extra; | |
2623 } | |
2624 else | |
2625 { | |
2626 // If we're looking at an "else", try to find an "if" | |
2627 // to match it with. | |
2628 // If we're looking at a "while", try to find a "do" | |
2629 // to match it with. | |
2630 lookfor = LOOKFOR_INITIAL; | |
2631 if (cin_iselse(theline)) | |
2632 lookfor = LOOKFOR_IF; | |
2633 else if (cin_iswhileofdo(theline, cur_curpos.lnum)) // XXX | |
2634 lookfor = LOOKFOR_DO; | |
2635 if (lookfor != LOOKFOR_INITIAL) | |
2636 { | |
2637 curwin->w_cursor.lnum = cur_curpos.lnum; | |
2638 if (find_match(lookfor, ourscope) == OK) | |
2639 { | |
2640 amount = get_indent(); // XXX | |
2641 goto theend; | |
2642 } | |
2643 } | |
2644 | |
2645 // We get here if we are not on an "while-of-do" or "else" (or | |
2646 // failed to find a matching "if"). | |
2647 // Search backwards for something to line up with. | |
2648 // First set amount for when we don't find anything. | |
2649 | |
2650 // if the '{' is _really_ at the left margin, use the imaginary | |
2651 // location of a left-margin brace. Otherwise, correct the | |
2652 // location for b_ind_open_extra. | |
2653 | |
2654 if (start_brace == BRACE_IN_COL0) // '{' is in column 0 | |
2655 { | |
2656 amount = curbuf->b_ind_open_left_imag; | |
2657 lookfor_cpp_namespace = TRUE; | |
2658 } | |
2659 else if (start_brace == BRACE_AT_START && | |
2660 lookfor_cpp_namespace) // '{' is at start | |
2661 { | |
2662 | |
2663 lookfor_cpp_namespace = TRUE; | |
2664 } | |
2665 else | |
2666 { | |
2667 if (start_brace == BRACE_AT_END) // '{' is at end of line | |
2668 { | |
2669 amount += curbuf->b_ind_open_imag; | |
2670 | |
2671 l = skipwhite(ml_get_curline()); | |
2672 if (cin_is_cpp_namespace(l)) | |
2673 amount += curbuf->b_ind_cpp_namespace; | |
2674 else if (cin_is_cpp_extern_c(l)) | |
2675 amount += curbuf->b_ind_cpp_extern_c; | |
2676 } | |
2677 else | |
2678 { | |
2679 // Compensate for adding b_ind_open_extra later. | |
2680 amount -= curbuf->b_ind_open_extra; | |
2681 if (amount < 0) | |
2682 amount = 0; | |
2683 } | |
2684 } | |
2685 | |
2686 lookfor_break = FALSE; | |
2687 | |
2688 if (cin_iscase(theline, FALSE)) // it's a switch() label | |
2689 { | |
2690 lookfor = LOOKFOR_CASE; // find a previous switch() label | |
2691 amount += curbuf->b_ind_case; | |
2692 } | |
2693 else if (cin_isscopedecl(theline)) // private:, ... | |
2694 { | |
2695 lookfor = LOOKFOR_SCOPEDECL; // class decl is this block | |
2696 amount += curbuf->b_ind_scopedecl; | |
2697 } | |
2698 else | |
2699 { | |
2700 if (curbuf->b_ind_case_break && cin_isbreak(theline)) | |
2701 // break; ... | |
2702 lookfor_break = TRUE; | |
2703 | |
2704 lookfor = LOOKFOR_INITIAL; | |
2705 // b_ind_level from start of block | |
2706 amount += curbuf->b_ind_level; | |
2707 } | |
2708 scope_amount = amount; | |
2709 whilelevel = 0; | |
2710 | |
2711 // Search backwards. If we find something we recognize, line up | |
2712 // with that. | |
2713 // | |
2714 // If we're looking at an open brace, indent | |
2715 // the usual amount relative to the conditional | |
2716 // that opens the block. | |
2717 curwin->w_cursor = cur_curpos; | |
2718 for (;;) | |
2719 { | |
2720 curwin->w_cursor.lnum--; | |
2721 curwin->w_cursor.col = 0; | |
2722 | |
2723 // If we went all the way back to the start of our scope, line | |
2724 // up with it. | |
2725 if (curwin->w_cursor.lnum <= ourscope) | |
2726 { | |
2727 // We reached end of scope: | |
2728 // If looking for a enum or structure initialization | |
2729 // go further back: | |
2730 // If it is an initializer (enum xxx or xxx =), then | |
2731 // don't add ind_continuation, otherwise it is a variable | |
2732 // declaration: | |
2733 // int x, | |
2734 // here; <-- add ind_continuation | |
2735 if (lookfor == LOOKFOR_ENUM_OR_INIT) | |
2736 { | |
2737 if (curwin->w_cursor.lnum == 0 | |
2738 || curwin->w_cursor.lnum | |
2739 < ourscope - curbuf->b_ind_maxparen) | |
2740 { | |
2741 // nothing found (abuse curbuf->b_ind_maxparen as | |
2742 // limit) assume terminated line (i.e. a variable | |
2743 // initialization) | |
2744 if (cont_amount > 0) | |
2745 amount = cont_amount; | |
2746 else if (!curbuf->b_ind_js) | |
2747 amount += ind_continuation; | |
2748 break; | |
2749 } | |
2750 | |
2751 l = ml_get_curline(); | |
2752 | |
2753 // If we're in a comment or raw string now, skip to | |
2754 // the start of it. | |
2755 trypos = ind_find_start_CORS(NULL); | |
2756 if (trypos != NULL) | |
2757 { | |
2758 curwin->w_cursor.lnum = trypos->lnum + 1; | |
2759 curwin->w_cursor.col = 0; | |
2760 continue; | |
2761 } | |
2762 | |
2763 // Skip preprocessor directives and blank lines. | |
2764 if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum, | |
2765 &amount)) | |
2766 continue; | |
2767 | |
2768 if (cin_nocode(l)) | |
2769 continue; | |
2770 | |
2771 terminated = cin_isterminated(l, FALSE, TRUE); | |
2772 | |
2773 // If we are at top level and the line looks like a | |
2774 // function declaration, we are done | |
2775 // (it's a variable declaration). | |
2776 if (start_brace != BRACE_IN_COL0 | |
2777 || !cin_isfuncdecl(&l, curwin->w_cursor.lnum, 0)) | |
2778 { | |
2779 // if the line is terminated with another ',' | |
2780 // it is a continued variable initialization. | |
2781 // don't add extra indent. | |
2782 // TODO: does not work, if a function | |
2783 // declaration is split over multiple lines: | |
2784 // cin_isfuncdecl returns FALSE then. | |
2785 if (terminated == ',') | |
2786 break; | |
2787 | |
2788 // if it es a enum declaration or an assignment, | |
2789 // we are done. | |
2790 if (terminated != ';' && cin_isinit()) | |
2791 break; | |
2792 | |
2793 // nothing useful found | |
2794 if (terminated == 0 || terminated == '{') | |
2795 continue; | |
2796 } | |
2797 | |
2798 if (terminated != ';') | |
2799 { | |
2800 // Skip parens and braces. Position the cursor | |
2801 // over the rightmost paren, so that matching it | |
2802 // will take us back to the start of the line. | |
2803 // XXX | |
2804 trypos = NULL; | |
2805 if (find_last_paren(l, '(', ')')) | |
2806 trypos = find_match_paren( | |
2807 curbuf->b_ind_maxparen); | |
2808 | |
2809 if (trypos == NULL && find_last_paren(l, '{', '}')) | |
2810 trypos = find_start_brace(); | |
2811 | |
2812 if (trypos != NULL) | |
2813 { | |
2814 curwin->w_cursor.lnum = trypos->lnum + 1; | |
2815 curwin->w_cursor.col = 0; | |
2816 continue; | |
2817 } | |
2818 } | |
2819 | |
2820 // it's a variable declaration, add indentation | |
2821 // like in | |
2822 // int a, | |
2823 // b; | |
2824 if (cont_amount > 0) | |
2825 amount = cont_amount; | |
2826 else | |
2827 amount += ind_continuation; | |
2828 } | |
2829 else if (lookfor == LOOKFOR_UNTERM) | |
2830 { | |
2831 if (cont_amount > 0) | |
2832 amount = cont_amount; | |
2833 else | |
2834 amount += ind_continuation; | |
2835 } | |
2836 else | |
2837 { | |
2838 if (lookfor != LOOKFOR_TERM | |
2839 && lookfor != LOOKFOR_CPP_BASECLASS | |
2840 && lookfor != LOOKFOR_COMMA) | |
2841 { | |
2842 amount = scope_amount; | |
2843 if (theline[0] == '{') | |
2844 { | |
2845 amount += curbuf->b_ind_open_extra; | |
2846 added_to_amount = curbuf->b_ind_open_extra; | |
2847 } | |
2848 } | |
2849 | |
2850 if (lookfor_cpp_namespace) | |
2851 { | |
2852 // Looking for C++ namespace, need to look further | |
2853 // back. | |
2854 if (curwin->w_cursor.lnum == ourscope) | |
2855 continue; | |
2856 | |
2857 if (curwin->w_cursor.lnum == 0 | |
2858 || curwin->w_cursor.lnum | |
2859 < ourscope - FIND_NAMESPACE_LIM) | |
2860 break; | |
2861 | |
2862 l = ml_get_curline(); | |
2863 | |
2864 // If we're in a comment or raw string now, skip | |
2865 // to the start of it. | |
2866 trypos = ind_find_start_CORS(NULL); | |
2867 if (trypos != NULL) | |
2868 { | |
2869 curwin->w_cursor.lnum = trypos->lnum + 1; | |
2870 curwin->w_cursor.col = 0; | |
2871 continue; | |
2872 } | |
2873 | |
2874 // Skip preprocessor directives and blank lines. | |
2875 if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum, | |
2876 &amount)) | |
2877 continue; | |
2878 | |
2879 // Finally the actual check for "namespace". | |
2880 if (cin_is_cpp_namespace(l)) | |
2881 { | |
2882 amount += curbuf->b_ind_cpp_namespace | |
2883 - added_to_amount; | |
2884 break; | |
2885 } | |
2886 else if (cin_is_cpp_extern_c(l)) | |
2887 { | |
2888 amount += curbuf->b_ind_cpp_extern_c | |
2889 - added_to_amount; | |
2890 break; | |
2891 } | |
2892 | |
2893 if (cin_nocode(l)) | |
2894 continue; | |
2895 } | |
2896 } | |
2897 break; | |
2898 } | |
2899 | |
2900 // If we're in a comment or raw string now, skip to the start | |
2901 // of it. XXX | |
2902 if ((trypos = ind_find_start_CORS(&raw_string_start)) != NULL) | |
2903 { | |
2904 curwin->w_cursor.lnum = trypos->lnum + 1; | |
2905 curwin->w_cursor.col = 0; | |
2906 continue; | |
2907 } | |
2908 | |
2909 l = ml_get_curline(); | |
2910 | |
2911 // If this is a switch() label, may line up relative to that. | |
2912 // If this is a C++ scope declaration, do the same. | |
2913 iscase = cin_iscase(l, FALSE); | |
2914 if (iscase || cin_isscopedecl(l)) | |
2915 { | |
2916 // we are only looking for cpp base class | |
2917 // declaration/initialization any longer | |
2918 if (lookfor == LOOKFOR_CPP_BASECLASS) | |
2919 break; | |
2920 | |
2921 // When looking for a "do" we are not interested in | |
2922 // labels. | |
2923 if (whilelevel > 0) | |
2924 continue; | |
2925 | |
2926 // case xx: | |
2927 // c = 99 + <- this indent plus continuation | |
2928 //-> here; | |
2929 if (lookfor == LOOKFOR_UNTERM | |
2930 || lookfor == LOOKFOR_ENUM_OR_INIT) | |
2931 { | |
2932 if (cont_amount > 0) | |
2933 amount = cont_amount; | |
2934 else | |
2935 amount += ind_continuation; | |
2936 break; | |
2937 } | |
2938 | |
2939 // case xx: <- line up with this case | |
2940 // x = 333; | |
2941 // case yy: | |
2942 if ( (iscase && lookfor == LOOKFOR_CASE) | |
2943 || (iscase && lookfor_break) | |
2944 || (!iscase && lookfor == LOOKFOR_SCOPEDECL)) | |
2945 { | |
2946 // Check that this case label is not for another | |
2947 // switch() XXX | |
2948 if ((trypos = find_start_brace()) == NULL | |
2949 || trypos->lnum == ourscope) | |
2950 { | |
2951 amount = get_indent(); // XXX | |
2952 break; | |
2953 } | |
2954 continue; | |
2955 } | |
2956 | |
2957 n = get_indent_nolabel(curwin->w_cursor.lnum); // XXX | |
2958 | |
2959 // case xx: if (cond) <- line up with this if | |
2960 // y = y + 1; | |
2961 // -> s = 99; | |
2962 // | |
2963 // case xx: | |
2964 // if (cond) <- line up with this line | |
2965 // y = y + 1; | |
2966 // -> s = 99; | |
2967 if (lookfor == LOOKFOR_TERM) | |
2968 { | |
2969 if (n) | |
2970 amount = n; | |
2971 | |
2972 if (!lookfor_break) | |
2973 break; | |
2974 } | |
2975 | |
2976 // case xx: x = x + 1; <- line up with this x | |
2977 // -> y = y + 1; | |
2978 // | |
2979 // case xx: if (cond) <- line up with this if | |
2980 // -> y = y + 1; | |
2981 if (n) | |
2982 { | |
2983 amount = n; | |
2984 l = after_label(ml_get_curline()); | |
2985 if (l != NULL && cin_is_cinword(l)) | |
2986 { | |
2987 if (theline[0] == '{') | |
2988 amount += curbuf->b_ind_open_extra; | |
2989 else | |
2990 amount += curbuf->b_ind_level | |
2991 + curbuf->b_ind_no_brace; | |
2992 } | |
2993 break; | |
2994 } | |
2995 | |
2996 // Try to get the indent of a statement before the switch | |
2997 // label. If nothing is found, line up relative to the | |
2998 // switch label. | |
2999 // break; <- may line up with this line | |
3000 // case xx: | |
3001 // -> y = 1; | |
3002 scope_amount = get_indent() + (iscase // XXX | |
3003 ? curbuf->b_ind_case_code | |
3004 : curbuf->b_ind_scopedecl_code); | |
3005 lookfor = curbuf->b_ind_case_break | |
3006 ? LOOKFOR_NOBREAK : LOOKFOR_ANY; | |
3007 continue; | |
3008 } | |
3009 | |
3010 // Looking for a switch() label or C++ scope declaration, | |
3011 // ignore other lines, skip {}-blocks. | |
3012 if (lookfor == LOOKFOR_CASE || lookfor == LOOKFOR_SCOPEDECL) | |
3013 { | |
3014 if (find_last_paren(l, '{', '}') | |
3015 && (trypos = find_start_brace()) != NULL) | |
3016 { | |
3017 curwin->w_cursor.lnum = trypos->lnum + 1; | |
3018 curwin->w_cursor.col = 0; | |
3019 } | |
3020 continue; | |
3021 } | |
3022 | |
3023 // Ignore jump labels with nothing after them. | |
3024 if (!curbuf->b_ind_js && cin_islabel()) | |
3025 { | |
3026 l = after_label(ml_get_curline()); | |
3027 if (l == NULL || cin_nocode(l)) | |
3028 continue; | |
3029 } | |
3030 | |
3031 // Ignore #defines, #if, etc. | |
3032 // Ignore comment and empty lines. | |
3033 // (need to get the line again, cin_islabel() may have | |
3034 // unlocked it) | |
3035 l = ml_get_curline(); | |
3036 if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum, &amount) | |
3037 || cin_nocode(l)) | |
3038 continue; | |
3039 | |
3040 // Are we at the start of a cpp base class declaration or | |
3041 // constructor initialization? XXX | |
3042 n = FALSE; | |
3043 if (lookfor != LOOKFOR_TERM && curbuf->b_ind_cpp_baseclass > 0) | |
3044 { | |
3045 n = cin_is_cpp_baseclass(&cache_cpp_baseclass); | |
3046 l = ml_get_curline(); | |
3047 } | |
3048 if (n) | |
3049 { | |
3050 if (lookfor == LOOKFOR_UNTERM) | |
3051 { | |
3052 if (cont_amount > 0) | |
3053 amount = cont_amount; | |
3054 else | |
3055 amount += ind_continuation; | |
3056 } | |
3057 else if (theline[0] == '{') | |
3058 { | |
3059 // Need to find start of the declaration. | |
3060 lookfor = LOOKFOR_UNTERM; | |
3061 ind_continuation = 0; | |
3062 continue; | |
3063 } | |
3064 else | |
3065 // XXX | |
3066 amount = get_baseclass_amount( | |
3067 cache_cpp_baseclass.lpos.col); | |
3068 break; | |
3069 } | |
3070 else if (lookfor == LOOKFOR_CPP_BASECLASS) | |
3071 { | |
3072 // only look, whether there is a cpp base class | |
3073 // declaration or initialization before the opening brace. | |
3074 if (cin_isterminated(l, TRUE, FALSE)) | |
3075 break; | |
3076 else | |
3077 continue; | |
3078 } | |
3079 | |
3080 // What happens next depends on the line being terminated. | |
3081 // If terminated with a ',' only consider it terminating if | |
3082 // there is another unterminated statement behind, eg: | |
3083 // 123, | |
3084 // sizeof | |
3085 // here | |
3086 // Otherwise check whether it is a enumeration or structure | |
3087 // initialisation (not indented) or a variable declaration | |
3088 // (indented). | |
3089 terminated = cin_isterminated(l, FALSE, TRUE); | |
3090 | |
3091 if (js_cur_has_key) | |
3092 { | |
3093 js_cur_has_key = 0; // only check the first line | |
3094 if (curbuf->b_ind_js && terminated == ',') | |
3095 { | |
3096 // For Javascript we might be inside an object: | |
3097 // key: something, <- align with this | |
3098 // key: something | |
3099 // or: | |
3100 // key: something + <- align with this | |
3101 // something, | |
3102 // key: something | |
3103 lookfor = LOOKFOR_JS_KEY; | |
3104 } | |
3105 } | |
3106 if (lookfor == LOOKFOR_JS_KEY && cin_has_js_key(l)) | |
3107 { | |
3108 amount = get_indent(); | |
3109 break; | |
3110 } | |
3111 if (lookfor == LOOKFOR_COMMA) | |
3112 { | |
3113 if (tryposBrace != NULL && tryposBrace->lnum | |
3114 >= curwin->w_cursor.lnum) | |
3115 break; | |
3116 if (terminated == ',') | |
3117 // line below current line is the one that starts a | |
3118 // (possibly broken) line ending in a comma. | |
3119 break; | |
3120 else | |
3121 { | |
3122 amount = get_indent(); | |
3123 if (curwin->w_cursor.lnum - 1 == ourscope) | |
3124 // line above is start of the scope, thus current | |
3125 // line is the one that stars a (possibly broken) | |
3126 // line ending in a comma. | |
3127 break; | |
3128 } | |
3129 } | |
3130 | |
3131 if (terminated == 0 || (lookfor != LOOKFOR_UNTERM | |
3132 && terminated == ',')) | |
3133 { | |
3134 if (lookfor != LOOKFOR_ENUM_OR_INIT && | |
3135 (*skipwhite(l) == '[' || l[STRLEN(l) - 1] == '[')) | |
3136 amount += ind_continuation; | |
3137 // if we're in the middle of a paren thing, | |
3138 // go back to the line that starts it so | |
3139 // we can get the right prevailing indent | |
3140 // if ( foo && | |
3141 // bar ) | |
3142 | |
3143 // Position the cursor over the rightmost paren, so that | |
3144 // matching it will take us back to the start of the line. | |
3145 // Ignore a match before the start of the block. | |
3146 (void)find_last_paren(l, '(', ')'); | |
3147 trypos = find_match_paren(corr_ind_maxparen(&cur_curpos)); | |
3148 if (trypos != NULL && (trypos->lnum < tryposBrace->lnum | |
3149 || (trypos->lnum == tryposBrace->lnum | |
3150 && trypos->col < tryposBrace->col))) | |
3151 trypos = NULL; | |
3152 | |
3153 // If we are looking for ',', we also look for matching | |
3154 // braces. | |
3155 if (trypos == NULL && terminated == ',' | |
3156 && find_last_paren(l, '{', '}')) | |
3157 trypos = find_start_brace(); | |
3158 | |
3159 if (trypos != NULL) | |
3160 { | |
3161 // Check if we are on a case label now. This is | |
3162 // handled above. | |
3163 // case xx: if ( asdf && | |
3164 // asdf) | |
3165 curwin->w_cursor = *trypos; | |
3166 l = ml_get_curline(); | |
3167 if (cin_iscase(l, FALSE) || cin_isscopedecl(l)) | |
3168 { | |
3169 ++curwin->w_cursor.lnum; | |
3170 curwin->w_cursor.col = 0; | |
3171 continue; | |
3172 } | |
3173 } | |
3174 | |
3175 // Skip over continuation lines to find the one to get the | |
3176 // indent from | |
3177 // char *usethis = "bla{backslash} | |
3178 // bla", | |
3179 // here; | |
3180 if (terminated == ',') | |
3181 { | |
3182 while (curwin->w_cursor.lnum > 1) | |
3183 { | |
3184 l = ml_get(curwin->w_cursor.lnum - 1); | |
3185 if (*l == NUL || l[STRLEN(l) - 1] != '\\') | |
3186 break; | |
3187 --curwin->w_cursor.lnum; | |
3188 curwin->w_cursor.col = 0; | |
3189 } | |
3190 } | |
3191 | |
3192 // Get indent and pointer to text for current line, | |
3193 // ignoring any jump label. XXX | |
3194 if (curbuf->b_ind_js) | |
3195 cur_amount = get_indent(); | |
3196 else | |
3197 cur_amount = skip_label(curwin->w_cursor.lnum, &l); | |
3198 // If this is just above the line we are indenting, and it | |
3199 // starts with a '{', line it up with this line. | |
3200 // while (not) | |
3201 // -> { | |
3202 // } | |
3203 if (terminated != ',' && lookfor != LOOKFOR_TERM | |
3204 && theline[0] == '{') | |
3205 { | |
3206 amount = cur_amount; | |
3207 // Only add b_ind_open_extra when the current line | |
3208 // doesn't start with a '{', which must have a match | |
3209 // in the same line (scope is the same). Probably: | |
3210 // { 1, 2 }, | |
3211 // -> { 3, 4 } | |
3212 if (*skipwhite(l) != '{') | |
3213 amount += curbuf->b_ind_open_extra; | |
3214 | |
3215 if (curbuf->b_ind_cpp_baseclass && !curbuf->b_ind_js) | |
3216 { | |
3217 // have to look back, whether it is a cpp base | |
3218 // class declaration or initialization | |
3219 lookfor = LOOKFOR_CPP_BASECLASS; | |
3220 continue; | |
3221 } | |
3222 break; | |
3223 } | |
3224 | |
3225 // Check if we are after an "if", "while", etc. | |
3226 // Also allow " } else". | |
3227 if (cin_is_cinword(l) || cin_iselse(skipwhite(l))) | |
3228 { | |
3229 // Found an unterminated line after an if (), line up | |
3230 // with the last one. | |
3231 // if (cond) | |
3232 // 100 + | |
3233 // -> here; | |
3234 if (lookfor == LOOKFOR_UNTERM | |
3235 || lookfor == LOOKFOR_ENUM_OR_INIT) | |
3236 { | |
3237 if (cont_amount > 0) | |
3238 amount = cont_amount; | |
3239 else | |
3240 amount += ind_continuation; | |
3241 break; | |
3242 } | |
3243 | |
3244 // If this is just above the line we are indenting, we | |
3245 // are finished. | |
3246 // while (not) | |
3247 // -> here; | |
3248 // Otherwise this indent can be used when the line | |
3249 // before this is terminated. | |
3250 // yyy; | |
3251 // if (stat) | |
3252 // while (not) | |
3253 // xxx; | |
3254 // -> here; | |
3255 amount = cur_amount; | |
3256 if (theline[0] == '{') | |
3257 amount += curbuf->b_ind_open_extra; | |
3258 if (lookfor != LOOKFOR_TERM) | |
3259 { | |
3260 amount += curbuf->b_ind_level | |
3261 + curbuf->b_ind_no_brace; | |
3262 break; | |
3263 } | |
3264 | |
3265 // Special trick: when expecting the while () after a | |
3266 // do, line up with the while() | |
3267 // do | |
3268 // x = 1; | |
3269 // -> here | |
3270 l = skipwhite(ml_get_curline()); | |
3271 if (cin_isdo(l)) | |
3272 { | |
3273 if (whilelevel == 0) | |
3274 break; | |
3275 --whilelevel; | |
3276 } | |
3277 | |
3278 // When searching for a terminated line, don't use the | |
3279 // one between the "if" and the matching "else". | |
3280 // Need to use the scope of this "else". XXX | |
3281 // If whilelevel != 0 continue looking for a "do {". | |
3282 if (cin_iselse(l) && whilelevel == 0) | |
3283 { | |
3284 // If we're looking at "} else", let's make sure we | |
3285 // find the opening brace of the enclosing scope, | |
3286 // not the one from "if () {". | |
3287 if (*l == '}') | |
3288 curwin->w_cursor.col = | |
3289 (colnr_T)(l - ml_get_curline()) + 1; | |
3290 | |
3291 if ((trypos = find_start_brace()) == NULL | |
3292 || find_match(LOOKFOR_IF, trypos->lnum) | |
3293 == FAIL) | |
3294 break; | |
3295 } | |
3296 } | |
3297 | |
3298 // If we're below an unterminated line that is not an | |
3299 // "if" or something, we may line up with this line or | |
3300 // add something for a continuation line, depending on | |
3301 // the line before this one. | |
3302 else | |
3303 { | |
3304 // Found two unterminated lines on a row, line up with | |
3305 // the last one. | |
3306 // c = 99 + | |
3307 // 100 + | |
3308 // -> here; | |
3309 if (lookfor == LOOKFOR_UNTERM) | |
3310 { | |
3311 // When line ends in a comma add extra indent | |
3312 if (terminated == ',') | |
3313 amount += ind_continuation; | |
3314 break; | |
3315 } | |
3316 | |
3317 if (lookfor == LOOKFOR_ENUM_OR_INIT) | |
3318 { | |
3319 // Found two lines ending in ',', lineup with the | |
3320 // lowest one, but check for cpp base class | |
3321 // declaration/initialization, if it is an | |
3322 // opening brace or we are looking just for | |
3323 // enumerations/initializations. | |
3324 if (terminated == ',') | |
3325 { | |
3326 if (curbuf->b_ind_cpp_baseclass == 0) | |
3327 break; | |
3328 | |
3329 lookfor = LOOKFOR_CPP_BASECLASS; | |
3330 continue; | |
3331 } | |
3332 | |
3333 // Ignore unterminated lines in between, but | |
3334 // reduce indent. | |
3335 if (amount > cur_amount) | |
3336 amount = cur_amount; | |
3337 } | |
3338 else | |
3339 { | |
3340 // Found first unterminated line on a row, may | |
3341 // line up with this line, remember its indent | |
3342 // 100 + | |
3343 // -> here; | |
3344 l = ml_get_curline(); | |
3345 amount = cur_amount; | |
3346 | |
3347 n = (int)STRLEN(l); | |
3348 if (terminated == ',' && (*skipwhite(l) == ']' | |
3349 || (n >=2 && l[n - 2] == ']'))) | |
3350 break; | |
3351 | |
3352 // If previous line ends in ',', check whether we | |
3353 // are in an initialization or enum | |
3354 // struct xxx = | |
3355 // { | |
3356 // sizeof a, | |
3357 // 124 }; | |
3358 // or a normal possible continuation line. | |
3359 // but only, of no other statement has been found | |
3360 // yet. | |
3361 if (lookfor == LOOKFOR_INITIAL && terminated == ',') | |
3362 { | |
3363 if (curbuf->b_ind_js) | |
3364 { | |
3365 // Search for a line ending in a comma | |
3366 // and line up with the line below it | |
3367 // (could be the current line). | |
3368 // some = [ | |
3369 // 1, <- line up here | |
3370 // 2, | |
3371 // some = [ | |
3372 // 3 + <- line up here | |
3373 // 4 * | |
3374 // 5, | |
3375 // 6, | |
3376 if (cin_iscomment(skipwhite(l))) | |
3377 break; | |
3378 lookfor = LOOKFOR_COMMA; | |
3379 trypos = find_match_char('[', | |
3380 curbuf->b_ind_maxparen); | |
3381 if (trypos != NULL) | |
3382 { | |
3383 if (trypos->lnum | |
3384 == curwin->w_cursor.lnum - 1) | |
3385 { | |
3386 // Current line is first inside | |
3387 // [], line up with it. | |
3388 break; | |
3389 } | |
3390 ourscope = trypos->lnum; | |
3391 } | |
3392 } | |
3393 else | |
3394 { | |
3395 lookfor = LOOKFOR_ENUM_OR_INIT; | |
3396 cont_amount = cin_first_id_amount(); | |
3397 } | |
3398 } | |
3399 else | |
3400 { | |
3401 if (lookfor == LOOKFOR_INITIAL | |
3402 && *l != NUL | |
3403 && l[STRLEN(l) - 1] == '\\') | |
3404 // XXX | |
3405 cont_amount = cin_get_equal_amount( | |
3406 curwin->w_cursor.lnum); | |
3407 if (lookfor != LOOKFOR_TERM | |
3408 && lookfor != LOOKFOR_JS_KEY | |
3409 && lookfor != LOOKFOR_COMMA | |
3410 && raw_string_start != curwin->w_cursor.lnum) | |
3411 lookfor = LOOKFOR_UNTERM; | |
3412 } | |
3413 } | |
3414 } | |
3415 } | |
3416 | |
3417 // Check if we are after a while (cond); | |
3418 // If so: Ignore until the matching "do". | |
3419 else if (cin_iswhileofdo_end(terminated)) // XXX | |
3420 { | |
3421 // Found an unterminated line after a while ();, line up | |
3422 // with the last one. | |
3423 // while (cond); | |
3424 // 100 + <- line up with this one | |
3425 // -> here; | |
3426 if (lookfor == LOOKFOR_UNTERM | |
3427 || lookfor == LOOKFOR_ENUM_OR_INIT) | |
3428 { | |
3429 if (cont_amount > 0) | |
3430 amount = cont_amount; | |
3431 else | |
3432 amount += ind_continuation; | |
3433 break; | |
3434 } | |
3435 | |
3436 if (whilelevel == 0) | |
3437 { | |
3438 lookfor = LOOKFOR_TERM; | |
3439 amount = get_indent(); // XXX | |
3440 if (theline[0] == '{') | |
3441 amount += curbuf->b_ind_open_extra; | |
3442 } | |
3443 ++whilelevel; | |
3444 } | |
3445 | |
3446 // We are after a "normal" statement. | |
3447 // If we had another statement we can stop now and use the | |
3448 // indent of that other statement. | |
3449 // Otherwise the indent of the current statement may be used, | |
3450 // search backwards for the next "normal" statement. | |
3451 else | |
3452 { | |
3453 // Skip single break line, if before a switch label. It | |
3454 // may be lined up with the case label. | |
3455 if (lookfor == LOOKFOR_NOBREAK | |
3456 && cin_isbreak(skipwhite(ml_get_curline()))) | |
3457 { | |
3458 lookfor = LOOKFOR_ANY; | |
3459 continue; | |
3460 } | |
3461 | |
3462 // Handle "do {" line. | |
3463 if (whilelevel > 0) | |
3464 { | |
3465 l = cin_skipcomment(ml_get_curline()); | |
3466 if (cin_isdo(l)) | |
3467 { | |
3468 amount = get_indent(); // XXX | |
3469 --whilelevel; | |
3470 continue; | |
3471 } | |
3472 } | |
3473 | |
3474 // Found a terminated line above an unterminated line. Add | |
3475 // the amount for a continuation line. | |
3476 // x = 1; | |
3477 // y = foo + | |
3478 // -> here; | |
3479 // or | |
3480 // int x = 1; | |
3481 // int foo, | |
3482 // -> here; | |
3483 if (lookfor == LOOKFOR_UNTERM | |
3484 || lookfor == LOOKFOR_ENUM_OR_INIT) | |
3485 { | |
3486 if (cont_amount > 0) | |
3487 amount = cont_amount; | |
3488 else | |
3489 amount += ind_continuation; | |
3490 break; | |
3491 } | |
3492 | |
3493 // Found a terminated line above a terminated line or "if" | |
3494 // etc. line. Use the amount of the line below us. | |
3495 // x = 1; x = 1; | |
3496 // if (asdf) y = 2; | |
3497 // while (asdf) ->here; | |
3498 // here; | |
3499 // ->foo; | |
3500 if (lookfor == LOOKFOR_TERM) | |
3501 { | |
3502 if (!lookfor_break && whilelevel == 0) | |
3503 break; | |
3504 } | |
3505 | |
3506 // First line above the one we're indenting is terminated. | |
3507 // To know what needs to be done look further backward for | |
3508 // a terminated line. | |
3509 else | |
3510 { | |
3511 // position the cursor over the rightmost paren, so | |
3512 // that matching it will take us back to the start of | |
3513 // the line. Helps for: | |
3514 // func(asdr, | |
3515 // asdfasdf); | |
3516 // here; | |
3517 term_again: | |
3518 l = ml_get_curline(); | |
3519 if (find_last_paren(l, '(', ')') | |
3520 && (trypos = find_match_paren( | |
3521 curbuf->b_ind_maxparen)) != NULL) | |
3522 { | |
3523 // Check if we are on a case label now. This is | |
3524 // handled above. | |
3525 // case xx: if ( asdf && | |
3526 // asdf) | |
3527 curwin->w_cursor = *trypos; | |
3528 l = ml_get_curline(); | |
3529 if (cin_iscase(l, FALSE) || cin_isscopedecl(l)) | |
3530 { | |
3531 ++curwin->w_cursor.lnum; | |
3532 curwin->w_cursor.col = 0; | |
3533 continue; | |
3534 } | |
3535 } | |
3536 | |
3537 // When aligning with the case statement, don't align | |
3538 // with a statement after it. | |
3539 // case 1: { <-- don't use this { position | |
3540 // stat; | |
3541 // } | |
3542 // case 2: | |
3543 // stat; | |
3544 // } | |
3545 iscase = (curbuf->b_ind_keep_case_label | |
3546 && cin_iscase(l, FALSE)); | |
3547 | |
3548 // Get indent and pointer to text for current line, | |
3549 // ignoring any jump label. | |
3550 amount = skip_label(curwin->w_cursor.lnum, &l); | |
3551 | |
3552 if (theline[0] == '{') | |
3553 amount += curbuf->b_ind_open_extra; | |
3554 // See remark above: "Only add b_ind_open_extra.." | |
3555 l = skipwhite(l); | |
3556 if (*l == '{') | |
3557 amount -= curbuf->b_ind_open_extra; | |
3558 lookfor = iscase ? LOOKFOR_ANY : LOOKFOR_TERM; | |
3559 | |
3560 // When a terminated line starts with "else" skip to | |
3561 // the matching "if": | |
3562 // else 3; | |
3563 // indent this; | |
3564 // Need to use the scope of this "else". XXX | |
3565 // If whilelevel != 0 continue looking for a "do {". | |
3566 if (lookfor == LOOKFOR_TERM | |
3567 && *l != '}' | |
3568 && cin_iselse(l) | |
3569 && whilelevel == 0) | |
3570 { | |
3571 if ((trypos = find_start_brace()) == NULL | |
3572 || find_match(LOOKFOR_IF, trypos->lnum) | |
3573 == FAIL) | |
3574 break; | |
3575 continue; | |
3576 } | |
3577 | |
3578 // If we're at the end of a block, skip to the start of | |
3579 // that block. | |
3580 l = ml_get_curline(); | |
3581 if (find_last_paren(l, '{', '}') // XXX | |
3582 && (trypos = find_start_brace()) != NULL) | |
3583 { | |
3584 curwin->w_cursor = *trypos; | |
3585 // if not "else {" check for terminated again | |
3586 // but skip block for "} else {" | |
3587 l = cin_skipcomment(ml_get_curline()); | |
3588 if (*l == '}' || !cin_iselse(l)) | |
3589 goto term_again; | |
3590 ++curwin->w_cursor.lnum; | |
3591 curwin->w_cursor.col = 0; | |
3592 } | |
3593 } | |
3594 } | |
3595 } | |
3596 } | |
3597 } | |
3598 | |
3599 // add extra indent for a comment | |
3600 if (cin_iscomment(theline)) | |
3601 amount += curbuf->b_ind_comment; | |
3602 | |
3603 // subtract extra left-shift for jump labels | |
3604 if (curbuf->b_ind_jump_label > 0 && original_line_islabel) | |
3605 amount -= curbuf->b_ind_jump_label; | |
3606 | |
3607 goto theend; | |
3608 } | |
3609 | |
3610 // ok -- we're not inside any sort of structure at all! | |
3611 // | |
3612 // This means we're at the top level, and everything should | |
3613 // basically just match where the previous line is, except | |
3614 // for the lines immediately following a function declaration, | |
3615 // which are K&R-style parameters and need to be indented. | |
3616 // | |
3617 // if our line starts with an open brace, forget about any | |
3618 // prevailing indent and make sure it looks like the start | |
3619 // of a function | |
3620 | |
3621 if (theline[0] == '{') | |
3622 { | |
3623 amount = curbuf->b_ind_first_open; | |
3624 goto theend; | |
3625 } | |
3626 | |
3627 // If the NEXT line is a function declaration, the current | |
3628 // line needs to be indented as a function type spec. | |
3629 // Don't do this if the current line looks like a comment or if the | |
3630 // current line is terminated, ie. ends in ';', or if the current line | |
3631 // contains { or }: "void f() {\n if (1)" | |
3632 if (cur_curpos.lnum < curbuf->b_ml.ml_line_count | |
3633 && !cin_nocode(theline) | |
3634 && vim_strchr(theline, '{') == NULL | |
3635 && vim_strchr(theline, '}') == NULL | |
3636 && !cin_ends_in(theline, (char_u *)":", NULL) | |
3637 && !cin_ends_in(theline, (char_u *)",", NULL) | |
3638 && cin_isfuncdecl(NULL, cur_curpos.lnum + 1, | |
3639 cur_curpos.lnum + 1) | |
3640 && !cin_isterminated(theline, FALSE, TRUE)) | |
3641 { | |
3642 amount = curbuf->b_ind_func_type; | |
3643 goto theend; | |
3644 } | |
3645 | |
3646 // search backwards until we find something we recognize | |
3647 amount = 0; | |
3648 curwin->w_cursor = cur_curpos; | |
3649 while (curwin->w_cursor.lnum > 1) | |
3650 { | |
3651 curwin->w_cursor.lnum--; | |
3652 curwin->w_cursor.col = 0; | |
3653 | |
3654 l = ml_get_curline(); | |
3655 | |
3656 // If we're in a comment or raw string now, skip to the start | |
3657 // of it. XXX | |
3658 if ((trypos = ind_find_start_CORS(NULL)) != NULL) | |
3659 { | |
3660 curwin->w_cursor.lnum = trypos->lnum + 1; | |
3661 curwin->w_cursor.col = 0; | |
3662 continue; | |
3663 } | |
3664 | |
3665 // Are we at the start of a cpp base class declaration or | |
3666 // constructor initialization? XXX | |
3667 n = FALSE; | |
3668 if (curbuf->b_ind_cpp_baseclass != 0 && theline[0] != '{') | |
3669 { | |
3670 n = cin_is_cpp_baseclass(&cache_cpp_baseclass); | |
3671 l = ml_get_curline(); | |
3672 } | |
3673 if (n) | |
3674 { | |
3675 // XXX | |
3676 amount = get_baseclass_amount(cache_cpp_baseclass.lpos.col); | |
3677 break; | |
3678 } | |
3679 | |
3680 // Skip preprocessor directives and blank lines. | |
3681 if (cin_ispreproc_cont(&l, &curwin->w_cursor.lnum, &amount)) | |
3682 continue; | |
3683 | |
3684 if (cin_nocode(l)) | |
3685 continue; | |
3686 | |
3687 // If the previous line ends in ',', use one level of | |
3688 // indentation: | |
3689 // int foo, | |
3690 // bar; | |
3691 // do this before checking for '}' in case of eg. | |
3692 // enum foobar | |
3693 // { | |
3694 // ... | |
3695 // } foo, | |
3696 // bar; | |
3697 n = 0; | |
3698 if (cin_ends_in(l, (char_u *)",", NULL) | |
3699 || (*l != NUL && (n = l[STRLEN(l) - 1]) == '\\')) | |
3700 { | |
3701 // take us back to opening paren | |
3702 if (find_last_paren(l, '(', ')') | |
3703 && (trypos = find_match_paren( | |
3704 curbuf->b_ind_maxparen)) != NULL) | |
3705 curwin->w_cursor = *trypos; | |
3706 | |
3707 // For a line ending in ',' that is a continuation line go | |
3708 // back to the first line with a backslash: | |
3709 // char *foo = "bla{backslash} | |
3710 // bla", | |
3711 // here; | |
3712 while (n == 0 && curwin->w_cursor.lnum > 1) | |
3713 { | |
3714 l = ml_get(curwin->w_cursor.lnum - 1); | |
3715 if (*l == NUL || l[STRLEN(l) - 1] != '\\') | |
3716 break; | |
3717 --curwin->w_cursor.lnum; | |
3718 curwin->w_cursor.col = 0; | |
3719 } | |
3720 | |
3721 amount = get_indent(); // XXX | |
3722 | |
3723 if (amount == 0) | |
3724 amount = cin_first_id_amount(); | |
3725 if (amount == 0) | |
3726 amount = ind_continuation; | |
3727 break; | |
3728 } | |
3729 | |
3730 // If the line looks like a function declaration, and we're | |
3731 // not in a comment, put it the left margin. | |
3732 if (cin_isfuncdecl(NULL, cur_curpos.lnum, 0)) // XXX | |
3733 break; | |
3734 l = ml_get_curline(); | |
3735 | |
3736 // Finding the closing '}' of a previous function. Put | |
3737 // current line at the left margin. For when 'cino' has "fs". | |
3738 if (*skipwhite(l) == '}') | |
3739 break; | |
3740 | |
3741 // (matching {) | |
3742 // If the previous line ends on '};' (maybe followed by | |
3743 // comments) align at column 0. For example: | |
3744 // char *string_array[] = { "foo", | |
3745 // / * x * / "b};ar" }; / * foobar * / | |
3746 if (cin_ends_in(l, (char_u *)"};", NULL)) | |
3747 break; | |
3748 | |
3749 // If the previous line ends on '[' we are probably in an | |
3750 // array constant: | |
3751 // something = [ | |
3752 // 234, <- extra indent | |
3753 if (cin_ends_in(l, (char_u *)"[", NULL)) | |
3754 { | |
3755 amount = get_indent() + ind_continuation; | |
3756 break; | |
3757 } | |
3758 | |
3759 // Find a line only has a semicolon that belongs to a previous | |
3760 // line ending in '}', e.g. before an #endif. Don't increase | |
3761 // indent then. | |
3762 if (*(look = skipwhite(l)) == ';' && cin_nocode(look + 1)) | |
3763 { | |
3764 pos_T curpos_save = curwin->w_cursor; | |
3765 | |
3766 while (curwin->w_cursor.lnum > 1) | |
3767 { | |
3768 look = ml_get(--curwin->w_cursor.lnum); | |
3769 if (!(cin_nocode(look) || cin_ispreproc_cont( | |
3770 &look, &curwin->w_cursor.lnum, &amount))) | |
3771 break; | |
3772 } | |
3773 if (curwin->w_cursor.lnum > 0 | |
3774 && cin_ends_in(look, (char_u *)"}", NULL)) | |
3775 break; | |
3776 | |
3777 curwin->w_cursor = curpos_save; | |
3778 } | |
3779 | |
3780 // If the PREVIOUS line is a function declaration, the current | |
3781 // line (and the ones that follow) needs to be indented as | |
3782 // parameters. | |
3783 if (cin_isfuncdecl(&l, curwin->w_cursor.lnum, 0)) | |
3784 { | |
3785 amount = curbuf->b_ind_param; | |
3786 break; | |
3787 } | |
3788 | |
3789 // If the previous line ends in ';' and the line before the | |
3790 // previous line ends in ',' or '\', ident to column zero: | |
3791 // int foo, | |
3792 // bar; | |
3793 // indent_to_0 here; | |
3794 if (cin_ends_in(l, (char_u *)";", NULL)) | |
3795 { | |
3796 l = ml_get(curwin->w_cursor.lnum - 1); | |
3797 if (cin_ends_in(l, (char_u *)",", NULL) | |
3798 || (*l != NUL && l[STRLEN(l) - 1] == '\\')) | |
3799 break; | |
3800 l = ml_get_curline(); | |
3801 } | |
3802 | |
3803 // Doesn't look like anything interesting -- so just | |
3804 // use the indent of this line. | |
3805 // | |
3806 // Position the cursor over the rightmost paren, so that | |
3807 // matching it will take us back to the start of the line. | |
3808 find_last_paren(l, '(', ')'); | |
3809 | |
3810 if ((trypos = find_match_paren(curbuf->b_ind_maxparen)) != NULL) | |
3811 curwin->w_cursor = *trypos; | |
3812 amount = get_indent(); // XXX | |
3813 break; | |
3814 } | |
3815 | |
3816 // add extra indent for a comment | |
3817 if (cin_iscomment(theline)) | |
3818 amount += curbuf->b_ind_comment; | |
3819 | |
3820 // add extra indent if the previous line ended in a backslash: | |
3821 // "asdfasdf{backslash} | |
3822 // here"; | |
3823 // char *foo = "asdf{backslash} | |
3824 // here"; | |
3825 if (cur_curpos.lnum > 1) | |
3826 { | |
3827 l = ml_get(cur_curpos.lnum - 1); | |
3828 if (*l != NUL && l[STRLEN(l) - 1] == '\\') | |
3829 { | |
3830 cur_amount = cin_get_equal_amount(cur_curpos.lnum - 1); | |
3831 if (cur_amount > 0) | |
3832 amount = cur_amount; | |
3833 else if (cur_amount == 0) | |
3834 amount += ind_continuation; | |
3835 } | |
3836 } | |
3837 | |
3838 theend: | |
3839 if (amount < 0) | |
3840 amount = 0; | |
3841 | |
3842 laterend: | |
3843 // put the cursor back where it belongs | |
3844 curwin->w_cursor = cur_curpos; | |
3845 | |
3846 vim_free(linecopy); | |
3847 | |
3848 return amount; | |
3849 } | |
3850 | |
3851 /* | |
3852 * return TRUE if 'cinkeys' contains the key "keytyped", | |
3853 * when == '*': Only if key is preceded with '*' (indent before insert) | |
3854 * when == '!': Only if key is preceded with '!' (don't insert) | |
3855 * when == ' ': Only if key is not preceded with '*'(indent afterwards) | |
3856 * | |
3857 * "keytyped" can have a few special values: | |
3858 * KEY_OPEN_FORW | |
3859 * KEY_OPEN_BACK | |
3860 * KEY_COMPLETE just finished completion. | |
3861 * | |
3862 * If line_is_empty is TRUE accept keys with '0' before them. | |
3863 */ | |
3864 int | |
3865 in_cinkeys( | |
3866 int keytyped, | |
3867 int when, | |
3868 int line_is_empty) | |
3869 { | |
3870 char_u *look; | |
3871 int try_match; | |
3872 int try_match_word; | |
3873 char_u *p; | |
3874 char_u *line; | |
3875 int icase; | |
3876 int i; | |
3877 | |
3878 if (keytyped == NUL) | |
3879 // Can happen with CTRL-Y and CTRL-E on a short line. | |
3880 return FALSE; | |
3881 | |
3882 #ifdef FEAT_EVAL | |
3883 if (*curbuf->b_p_inde != NUL) | |
3884 look = curbuf->b_p_indk; // 'indentexpr' set: use 'indentkeys' | |
3885 else | |
3886 #endif | |
3887 look = curbuf->b_p_cink; // 'indentexpr' empty: use 'cinkeys' | |
3888 while (*look) | |
3889 { | |
3890 // Find out if we want to try a match with this key, depending on | |
3891 // 'when' and a '*' or '!' before the key. | |
3892 switch (when) | |
3893 { | |
3894 case '*': try_match = (*look == '*'); break; | |
3895 case '!': try_match = (*look == '!'); break; | |
3896 default: try_match = (*look != '*'); break; | |
3897 } | |
3898 if (*look == '*' || *look == '!') | |
3899 ++look; | |
3900 | |
3901 // If there is a '0', only accept a match if the line is empty. | |
3902 // But may still match when typing last char of a word. | |
3903 if (*look == '0') | |
3904 { | |
3905 try_match_word = try_match; | |
3906 if (!line_is_empty) | |
3907 try_match = FALSE; | |
3908 ++look; | |
3909 } | |
3910 else | |
3911 try_match_word = FALSE; | |
3912 | |
3913 // does it look like a control character? | |
3914 if (*look == '^' | |
3915 #ifdef EBCDIC | |
3916 && (Ctrl_chr(look[1]) != 0) | |
3917 #else | |
3918 && look[1] >= '?' && look[1] <= '_' | |
3919 #endif | |
3920 ) | |
3921 { | |
3922 if (try_match && keytyped == Ctrl_chr(look[1])) | |
3923 return TRUE; | |
3924 look += 2; | |
3925 } | |
3926 // 'o' means "o" command, open forward. | |
3927 // 'O' means "O" command, open backward. | |
3928 else if (*look == 'o') | |
3929 { | |
3930 if (try_match && keytyped == KEY_OPEN_FORW) | |
3931 return TRUE; | |
3932 ++look; | |
3933 } | |
3934 else if (*look == 'O') | |
3935 { | |
3936 if (try_match && keytyped == KEY_OPEN_BACK) | |
3937 return TRUE; | |
3938 ++look; | |
3939 } | |
3940 | |
3941 // 'e' means to check for "else" at start of line and just before the | |
3942 // cursor. | |
3943 else if (*look == 'e') | |
3944 { | |
3945 if (try_match && keytyped == 'e' && curwin->w_cursor.col >= 4) | |
3946 { | |
3947 p = ml_get_curline(); | |
3948 if (skipwhite(p) == p + curwin->w_cursor.col - 4 && | |
3949 STRNCMP(p + curwin->w_cursor.col - 4, "else", 4) == 0) | |
3950 return TRUE; | |
3951 } | |
3952 ++look; | |
3953 } | |
3954 | |
3955 // ':' only causes an indent if it is at the end of a label or case | |
3956 // statement, or when it was before typing the ':' (to fix | |
3957 // class::method for C++). | |
3958 else if (*look == ':') | |
3959 { | |
3960 if (try_match && keytyped == ':') | |
3961 { | |
3962 p = ml_get_curline(); | |
3963 if (cin_iscase(p, FALSE) || cin_isscopedecl(p) || cin_islabel()) | |
3964 return TRUE; | |
3965 // Need to get the line again after cin_islabel(). | |
3966 p = ml_get_curline(); | |
3967 if (curwin->w_cursor.col > 2 | |
3968 && p[curwin->w_cursor.col - 1] == ':' | |
3969 && p[curwin->w_cursor.col - 2] == ':') | |
3970 { | |
3971 p[curwin->w_cursor.col - 1] = ' '; | |
3972 i = (cin_iscase(p, FALSE) || cin_isscopedecl(p) | |
3973 || cin_islabel()); | |
3974 p = ml_get_curline(); | |
3975 p[curwin->w_cursor.col - 1] = ':'; | |
3976 if (i) | |
3977 return TRUE; | |
3978 } | |
3979 } | |
3980 ++look; | |
3981 } | |
3982 | |
3983 | |
3984 // Is it a key in <>, maybe? | |
3985 else if (*look == '<') | |
3986 { | |
3987 if (try_match) | |
3988 { | |
3989 // make up some named keys <o>, <O>, <e>, <0>, <>>, <<>, <*>, | |
3990 // <:> and <!> so that people can re-indent on o, O, e, 0, <, | |
3991 // >, *, : and ! keys if they really really want to. | |
3992 if (vim_strchr((char_u *)"<>!*oOe0:", look[1]) != NULL | |
3993 && keytyped == look[1]) | |
3994 return TRUE; | |
3995 | |
3996 if (keytyped == get_special_key_code(look + 1)) | |
3997 return TRUE; | |
3998 } | |
3999 while (*look && *look != '>') | |
4000 look++; | |
4001 while (*look == '>') | |
4002 look++; | |
4003 } | |
4004 | |
4005 // Is it a word: "=word"? | |
4006 else if (*look == '=' && look[1] != ',' && look[1] != NUL) | |
4007 { | |
4008 ++look; | |
4009 if (*look == '~') | |
4010 { | |
4011 icase = TRUE; | |
4012 ++look; | |
4013 } | |
4014 else | |
4015 icase = FALSE; | |
4016 p = vim_strchr(look, ','); | |
4017 if (p == NULL) | |
4018 p = look + STRLEN(look); | |
4019 if ((try_match || try_match_word) | |
4020 && curwin->w_cursor.col >= (colnr_T)(p - look)) | |
4021 { | |
4022 int match = FALSE; | |
4023 | |
4024 if (keytyped == KEY_COMPLETE) | |
4025 { | |
4026 char_u *s; | |
4027 | |
4028 // Just completed a word, check if it starts with "look". | |
4029 // search back for the start of a word. | |
4030 line = ml_get_curline(); | |
4031 if (has_mbyte) | |
4032 { | |
4033 char_u *n; | |
4034 | |
4035 for (s = line + curwin->w_cursor.col; s > line; s = n) | |
4036 { | |
4037 n = mb_prevptr(line, s); | |
4038 if (!vim_iswordp(n)) | |
4039 break; | |
4040 } | |
4041 } | |
4042 else | |
4043 for (s = line + curwin->w_cursor.col; s > line; --s) | |
4044 if (!vim_iswordc(s[-1])) | |
4045 break; | |
4046 if (s + (p - look) <= line + curwin->w_cursor.col | |
4047 && (icase | |
4048 ? MB_STRNICMP(s, look, p - look) | |
4049 : STRNCMP(s, look, p - look)) == 0) | |
4050 match = TRUE; | |
4051 } | |
4052 else | |
4053 // TODO: multi-byte | |
4054 if (keytyped == (int)p[-1] || (icase && keytyped < 256 | |
4055 && TOLOWER_LOC(keytyped) == TOLOWER_LOC((int)p[-1]))) | |
4056 { | |
4057 line = ml_get_cursor(); | |
4058 if ((curwin->w_cursor.col == (colnr_T)(p - look) | |
4059 || !vim_iswordc(line[-(p - look) - 1])) | |
4060 && (icase | |
4061 ? MB_STRNICMP(line - (p - look), look, p - look) | |
4062 : STRNCMP(line - (p - look), look, p - look)) | |
4063 == 0) | |
4064 match = TRUE; | |
4065 } | |
4066 if (match && try_match_word && !try_match) | |
4067 { | |
4068 // "0=word": Check if there are only blanks before the | |
4069 // word. | |
4070 if (getwhitecols_curline() != | |
4071 (int)(curwin->w_cursor.col - (p - look))) | |
4072 match = FALSE; | |
4073 } | |
4074 if (match) | |
4075 return TRUE; | |
4076 } | |
4077 look = p; | |
4078 } | |
4079 | |
4080 // ok, it's a boring generic character. | |
4081 else | |
4082 { | |
4083 if (try_match && *look == keytyped) | |
4084 return TRUE; | |
4085 if (*look != NUL) | |
4086 ++look; | |
4087 } | |
4088 | |
4089 // Skip over ", ". | |
4090 look = skip_to_option_part(look); | |
4091 } | |
4092 return FALSE; | |
4093 } | |
4094 | |
4095 /* | |
4096 * Do C or expression indenting on the current line. | |
4097 */ | |
4098 void | |
4099 do_c_expr_indent(void) | |
4100 { | |
4101 # ifdef FEAT_EVAL | |
4102 if (*curbuf->b_p_inde != NUL) | |
4103 fixthisline(get_expr_indent); | |
4104 else | |
4105 # endif | |
4106 fixthisline(get_c_indent); | |
4107 } | |
4108 #endif | |
4109 | |
4110 #if defined(FEAT_EVAL) || defined(PROTO) | |
4111 /* | |
4112 * "cindent(lnum)" function | |
4113 */ | |
4114 void | |
4115 f_cindent(typval_T *argvars UNUSED, typval_T *rettv) | |
4116 { | |
4117 # ifdef FEAT_CINDENT | |
4118 pos_T pos; | |
4119 linenr_T lnum; | |
4120 | |
4121 pos = curwin->w_cursor; | |
4122 lnum = tv_get_lnum(argvars); | |
4123 if (lnum >= 1 && lnum <= curbuf->b_ml.ml_line_count) | |
4124 { | |
4125 curwin->w_cursor.lnum = lnum; | |
4126 rettv->vval.v_number = get_c_indent(); | |
4127 curwin->w_cursor = pos; | |
4128 } | |
4129 else | |
4130 # endif | |
4131 rettv->vval.v_number = -1; | |
4132 } | |
4133 #endif |