7
|
1 /* vi:set ts=8 sts=4 sw=4:
|
|
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 #include "vim.h"
|
|
11
|
|
12 #ifdef FEAT_LINEBREAK
|
|
13 static int win_chartabsize __ARGS((win_T *wp, char_u *p, colnr_T col));
|
|
14 #endif
|
|
15
|
|
16 #ifdef FEAT_MBYTE
|
|
17 static int win_nolbr_chartabsize __ARGS((win_T *wp, char_u *s, colnr_T col, int *headp));
|
|
18 #endif
|
|
19
|
1869
|
20 static unsigned nr2hex __ARGS((unsigned c));
|
7
|
21
|
|
22 static int chartab_initialized = FALSE;
|
|
23
|
|
24 /* b_chartab[] is an array of 32 bytes, each bit representing one of the
|
|
25 * characters 0-255. */
|
|
26 #define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7))
|
|
27 #define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7))
|
|
28 #define GET_CHARTAB(buf, c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7)))
|
|
29
|
|
30 /*
|
|
31 * Fill chartab[]. Also fills curbuf->b_chartab[] with flags for keyword
|
|
32 * characters for current buffer.
|
|
33 *
|
|
34 * Depends on the option settings 'iskeyword', 'isident', 'isfname',
|
|
35 * 'isprint' and 'encoding'.
|
|
36 *
|
|
37 * The index in chartab[] depends on 'encoding':
|
|
38 * - For non-multi-byte index with the byte (same as the character).
|
|
39 * - For DBCS index with the first byte.
|
|
40 * - For UTF-8 index with the character (when first byte is up to 0x80 it is
|
|
41 * the same as the character, if the first byte is 0x80 and above it depends
|
|
42 * on further bytes).
|
|
43 *
|
|
44 * The contents of chartab[]:
|
|
45 * - The lower two bits, masked by CT_CELL_MASK, give the number of display
|
|
46 * cells the character occupies (1 or 2). Not valid for UTF-8 above 0x80.
|
|
47 * - CT_PRINT_CHAR bit is set when the character is printable (no need to
|
|
48 * translate the character before displaying it). Note that only DBCS
|
|
49 * characters can have 2 display cells and still be printable.
|
|
50 * - CT_FNAME_CHAR bit is set when the character can be in a file name.
|
|
51 * - CT_ID_CHAR bit is set when the character can be in an identifier.
|
|
52 *
|
|
53 * Return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has an
|
|
54 * error, OK otherwise.
|
|
55 */
|
|
56 int
|
|
57 init_chartab()
|
|
58 {
|
|
59 return buf_init_chartab(curbuf, TRUE);
|
|
60 }
|
|
61
|
|
62 int
|
|
63 buf_init_chartab(buf, global)
|
|
64 buf_T *buf;
|
|
65 int global; /* FALSE: only set buf->b_chartab[] */
|
|
66 {
|
|
67 int c;
|
|
68 int c2;
|
|
69 char_u *p;
|
|
70 int i;
|
|
71 int tilde;
|
|
72 int do_isalpha;
|
|
73
|
|
74 if (global)
|
|
75 {
|
|
76 /*
|
|
77 * Set the default size for printable characters:
|
|
78 * From <Space> to '~' is 1 (printable), others are 2 (not printable).
|
|
79 * This also inits all 'isident' and 'isfname' flags to FALSE.
|
|
80 *
|
|
81 * EBCDIC: all chars below ' ' are not printable, all others are
|
|
82 * printable.
|
|
83 */
|
|
84 c = 0;
|
|
85 while (c < ' ')
|
|
86 chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2;
|
|
87 #ifdef EBCDIC
|
|
88 while (c < 255)
|
|
89 #else
|
|
90 while (c <= '~')
|
|
91 #endif
|
|
92 chartab[c++] = 1 + CT_PRINT_CHAR;
|
|
93 #ifdef FEAT_FKMAP
|
|
94 if (p_altkeymap)
|
|
95 {
|
|
96 while (c < YE)
|
|
97 chartab[c++] = 1 + CT_PRINT_CHAR;
|
|
98 }
|
|
99 #endif
|
|
100 while (c < 256)
|
|
101 {
|
|
102 #ifdef FEAT_MBYTE
|
|
103 /* UTF-8: bytes 0xa0 - 0xff are printable (latin1) */
|
|
104 if (enc_utf8 && c >= 0xa0)
|
|
105 chartab[c++] = CT_PRINT_CHAR + 1;
|
|
106 /* euc-jp characters starting with 0x8e are single width */
|
|
107 else if (enc_dbcs == DBCS_JPNU && c == 0x8e)
|
|
108 chartab[c++] = CT_PRINT_CHAR + 1;
|
|
109 /* other double-byte chars can be printable AND double-width */
|
|
110 else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2)
|
|
111 chartab[c++] = CT_PRINT_CHAR + 2;
|
|
112 else
|
|
113 #endif
|
|
114 /* the rest is unprintable by default */
|
|
115 chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2;
|
|
116 }
|
|
117
|
|
118 #ifdef FEAT_MBYTE
|
|
119 /* Assume that every multi-byte char is a filename character. */
|
|
120 for (c = 1; c < 256; ++c)
|
|
121 if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1)
|
|
122 || (enc_dbcs == DBCS_JPNU && c == 0x8e)
|
|
123 || (enc_utf8 && c >= 0xa0))
|
|
124 chartab[c] |= CT_FNAME_CHAR;
|
|
125 #endif
|
|
126 }
|
|
127
|
|
128 /*
|
|
129 * Init word char flags all to FALSE
|
|
130 */
|
|
131 vim_memset(buf->b_chartab, 0, (size_t)32);
|
|
132 #ifdef FEAT_MBYTE
|
227
|
133 if (enc_dbcs != 0)
|
|
134 for (c = 0; c < 256; ++c)
|
|
135 {
|
|
136 /* double-byte characters are probably word characters */
|
|
137 if (MB_BYTE2LEN(c) == 2)
|
|
138 SET_CHARTAB(buf, c);
|
|
139 }
|
7
|
140 #endif
|
|
141
|
|
142 #ifdef FEAT_LISP
|
|
143 /*
|
|
144 * In lisp mode the '-' character is included in keywords.
|
|
145 */
|
|
146 if (buf->b_p_lisp)
|
|
147 SET_CHARTAB(buf, '-');
|
|
148 #endif
|
|
149
|
|
150 /* Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint'
|
|
151 * options Each option is a list of characters, character numbers or
|
|
152 * ranges, separated by commas, e.g.: "200-210,x,#-178,-"
|
|
153 */
|
|
154 for (i = global ? 0 : 3; i <= 3; ++i)
|
|
155 {
|
|
156 if (i == 0)
|
|
157 p = p_isi; /* first round: 'isident' */
|
|
158 else if (i == 1)
|
|
159 p = p_isp; /* second round: 'isprint' */
|
|
160 else if (i == 2)
|
|
161 p = p_isf; /* third round: 'isfname' */
|
|
162 else /* i == 3 */
|
|
163 p = buf->b_p_isk; /* fourth round: 'iskeyword' */
|
|
164
|
|
165 while (*p)
|
|
166 {
|
|
167 tilde = FALSE;
|
|
168 do_isalpha = FALSE;
|
|
169 if (*p == '^' && p[1] != NUL)
|
|
170 {
|
|
171 tilde = TRUE;
|
|
172 ++p;
|
|
173 }
|
|
174 if (VIM_ISDIGIT(*p))
|
|
175 c = getdigits(&p);
|
|
176 else
|
1955
|
177 #ifdef FEAT_MBYTE
|
|
178 if (has_mbyte)
|
|
179 c = mb_ptr2char_adv(&p);
|
|
180 else
|
|
181 #endif
|
7
|
182 c = *p++;
|
|
183 c2 = -1;
|
|
184 if (*p == '-' && p[1] != NUL)
|
|
185 {
|
|
186 ++p;
|
|
187 if (VIM_ISDIGIT(*p))
|
|
188 c2 = getdigits(&p);
|
|
189 else
|
1979
|
190 #ifdef FEAT_MBYTE
|
|
191 if (has_mbyte)
|
|
192 c2 = mb_ptr2char_adv(&p);
|
|
193 else
|
|
194 #endif
|
7
|
195 c2 = *p++;
|
|
196 }
|
1979
|
197 if (c <= 0 || c >= 256 || (c2 < c && c2 != -1) || c2 >= 256
|
7
|
198 || !(*p == NUL || *p == ','))
|
|
199 return FAIL;
|
|
200
|
|
201 if (c2 == -1) /* not a range */
|
|
202 {
|
|
203 /*
|
|
204 * A single '@' (not "@-@"):
|
|
205 * Decide on letters being ID/printable/keyword chars with
|
|
206 * standard function isalpha(). This takes care of locale for
|
|
207 * single-byte characters).
|
|
208 */
|
|
209 if (c == '@')
|
|
210 {
|
|
211 do_isalpha = TRUE;
|
|
212 c = 1;
|
|
213 c2 = 255;
|
|
214 }
|
|
215 else
|
|
216 c2 = c;
|
|
217 }
|
|
218 while (c <= c2)
|
|
219 {
|
1365
|
220 /* Use the MB_ functions here, because isalpha() doesn't
|
|
221 * work properly when 'encoding' is "latin1" and the locale is
|
|
222 * "C". */
|
|
223 if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c)
|
7
|
224 #ifdef FEAT_FKMAP
|
|
225 || (p_altkeymap && (F_isalpha(c) || F_isdigit(c)))
|
|
226 #endif
|
|
227 )
|
|
228 {
|
|
229 if (i == 0) /* (re)set ID flag */
|
|
230 {
|
|
231 if (tilde)
|
|
232 chartab[c] &= ~CT_ID_CHAR;
|
|
233 else
|
|
234 chartab[c] |= CT_ID_CHAR;
|
|
235 }
|
|
236 else if (i == 1) /* (re)set printable */
|
|
237 {
|
|
238 if ((c < ' '
|
|
239 #ifndef EBCDIC
|
|
240 || c > '~'
|
|
241 #endif
|
|
242 #ifdef FEAT_FKMAP
|
|
243 || (p_altkeymap
|
|
244 && (F_isalpha(c) || F_isdigit(c)))
|
|
245 #endif
|
|
246 )
|
|
247 #ifdef FEAT_MBYTE
|
|
248 /* For double-byte we keep the cell width, so
|
|
249 * that we can detect it from the first byte. */
|
|
250 && !(enc_dbcs && MB_BYTE2LEN(c) == 2)
|
|
251 #endif
|
|
252 )
|
|
253 {
|
|
254 if (tilde)
|
|
255 {
|
|
256 chartab[c] = (chartab[c] & ~CT_CELL_MASK)
|
|
257 + ((dy_flags & DY_UHEX) ? 4 : 2);
|
|
258 chartab[c] &= ~CT_PRINT_CHAR;
|
|
259 }
|
|
260 else
|
|
261 {
|
|
262 chartab[c] = (chartab[c] & ~CT_CELL_MASK) + 1;
|
|
263 chartab[c] |= CT_PRINT_CHAR;
|
|
264 }
|
|
265 }
|
|
266 }
|
|
267 else if (i == 2) /* (re)set fname flag */
|
|
268 {
|
|
269 if (tilde)
|
|
270 chartab[c] &= ~CT_FNAME_CHAR;
|
|
271 else
|
|
272 chartab[c] |= CT_FNAME_CHAR;
|
|
273 }
|
|
274 else /* i == 3 */ /* (re)set keyword flag */
|
|
275 {
|
|
276 if (tilde)
|
|
277 RESET_CHARTAB(buf, c);
|
|
278 else
|
|
279 SET_CHARTAB(buf, c);
|
|
280 }
|
|
281 }
|
|
282 ++c;
|
|
283 }
|
|
284 p = skip_to_option_part(p);
|
|
285 }
|
|
286 }
|
|
287 chartab_initialized = TRUE;
|
|
288 return OK;
|
|
289 }
|
|
290
|
|
291 /*
|
|
292 * Translate any special characters in buf[bufsize] in-place.
|
|
293 * The result is a string with only printable characters, but if there is not
|
|
294 * enough room, not all characters will be translated.
|
|
295 */
|
|
296 void
|
|
297 trans_characters(buf, bufsize)
|
|
298 char_u *buf;
|
|
299 int bufsize;
|
|
300 {
|
|
301 int len; /* length of string needing translation */
|
|
302 int room; /* room in buffer after string */
|
|
303 char_u *trs; /* translated character */
|
|
304 int trs_len; /* length of trs[] */
|
|
305
|
|
306 len = (int)STRLEN(buf);
|
|
307 room = bufsize - len;
|
|
308 while (*buf != 0)
|
|
309 {
|
|
310 # ifdef FEAT_MBYTE
|
|
311 /* Assume a multi-byte character doesn't need translation. */
|
474
|
312 if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1)
|
7
|
313 len -= trs_len;
|
|
314 else
|
|
315 # endif
|
|
316 {
|
|
317 trs = transchar_byte(*buf);
|
|
318 trs_len = (int)STRLEN(trs);
|
|
319 if (trs_len > 1)
|
|
320 {
|
|
321 room -= trs_len - 1;
|
|
322 if (room <= 0)
|
|
323 return;
|
|
324 mch_memmove(buf + trs_len, buf + 1, (size_t)len);
|
|
325 }
|
|
326 mch_memmove(buf, trs, (size_t)trs_len);
|
|
327 --len;
|
|
328 }
|
|
329 buf += trs_len;
|
|
330 }
|
|
331 }
|
|
332
|
1097
|
333 #if defined(FEAT_EVAL) || defined(FEAT_TITLE) || defined(FEAT_INS_EXPAND) \
|
|
334 || defined(PROTO)
|
7
|
335 /*
|
|
336 * Translate a string into allocated memory, replacing special chars with
|
|
337 * printable chars. Returns NULL when out of memory.
|
|
338 */
|
|
339 char_u *
|
|
340 transstr(s)
|
|
341 char_u *s;
|
|
342 {
|
|
343 char_u *res;
|
|
344 char_u *p;
|
|
345 #ifdef FEAT_MBYTE
|
|
346 int l, len, c;
|
|
347 char_u hexbuf[11];
|
|
348 #endif
|
|
349
|
|
350 #ifdef FEAT_MBYTE
|
|
351 if (has_mbyte)
|
|
352 {
|
|
353 /* Compute the length of the result, taking account of unprintable
|
|
354 * multi-byte characters. */
|
|
355 len = 0;
|
|
356 p = s;
|
|
357 while (*p != NUL)
|
|
358 {
|
474
|
359 if ((l = (*mb_ptr2len)(p)) > 1)
|
7
|
360 {
|
|
361 c = (*mb_ptr2char)(p);
|
|
362 p += l;
|
|
363 if (vim_isprintc(c))
|
|
364 len += l;
|
|
365 else
|
|
366 {
|
|
367 transchar_hex(hexbuf, c);
|
835
|
368 len += (int)STRLEN(hexbuf);
|
7
|
369 }
|
|
370 }
|
|
371 else
|
|
372 {
|
|
373 l = byte2cells(*p++);
|
|
374 if (l > 0)
|
|
375 len += l;
|
|
376 else
|
|
377 len += 4; /* illegal byte sequence */
|
|
378 }
|
|
379 }
|
|
380 res = alloc((unsigned)(len + 1));
|
|
381 }
|
|
382 else
|
|
383 #endif
|
|
384 res = alloc((unsigned)(vim_strsize(s) + 1));
|
|
385 if (res != NULL)
|
|
386 {
|
|
387 *res = NUL;
|
|
388 p = s;
|
|
389 while (*p != NUL)
|
|
390 {
|
|
391 #ifdef FEAT_MBYTE
|
474
|
392 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1)
|
7
|
393 {
|
|
394 c = (*mb_ptr2char)(p);
|
|
395 if (vim_isprintc(c))
|
|
396 STRNCAT(res, p, l); /* append printable multi-byte char */
|
|
397 else
|
|
398 transchar_hex(res + STRLEN(res), c);
|
|
399 p += l;
|
|
400 }
|
|
401 else
|
|
402 #endif
|
|
403 STRCAT(res, transchar_byte(*p++));
|
|
404 }
|
|
405 }
|
|
406 return res;
|
|
407 }
|
|
408 #endif
|
|
409
|
|
410 #if defined(FEAT_SYN_HL) || defined(FEAT_INS_EXPAND) || defined(PROTO)
|
|
411 /*
|
221
|
412 * Convert the string "str[orglen]" to do ignore-case comparing. Uses the
|
|
413 * current locale.
|
130
|
414 * When "buf" is NULL returns an allocated string (NULL for out-of-memory).
|
|
415 * Otherwise puts the result in "buf[buflen]".
|
7
|
416 */
|
|
417 char_u *
|
130
|
418 str_foldcase(str, orglen, buf, buflen)
|
7
|
419 char_u *str;
|
130
|
420 int orglen;
|
|
421 char_u *buf;
|
|
422 int buflen;
|
7
|
423 {
|
|
424 garray_T ga;
|
|
425 int i;
|
130
|
426 int len = orglen;
|
7
|
427
|
|
428 #define GA_CHAR(i) ((char_u *)ga.ga_data)[i]
|
|
429 #define GA_PTR(i) ((char_u *)ga.ga_data + i)
|
130
|
430 #define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i])
|
|
431 #define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + i)
|
7
|
432
|
130
|
433 /* Copy "str" into "buf" or allocated memory, unmodified. */
|
|
434 if (buf == NULL)
|
|
435 {
|
|
436 ga_init2(&ga, 1, 10);
|
|
437 if (ga_grow(&ga, len + 1) == FAIL)
|
|
438 return NULL;
|
|
439 mch_memmove(ga.ga_data, str, (size_t)len);
|
|
440 ga.ga_len = len;
|
|
441 }
|
|
442 else
|
|
443 {
|
|
444 if (len >= buflen) /* Ugly! */
|
|
445 len = buflen - 1;
|
|
446 mch_memmove(buf, str, (size_t)len);
|
|
447 }
|
|
448 if (buf == NULL)
|
|
449 GA_CHAR(len) = NUL;
|
|
450 else
|
|
451 buf[len] = NUL;
|
7
|
452
|
|
453 /* Make each character lower case. */
|
|
454 i = 0;
|
130
|
455 while (STR_CHAR(i) != NUL)
|
7
|
456 {
|
|
457 #ifdef FEAT_MBYTE
|
130
|
458 if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1))
|
7
|
459 {
|
|
460 if (enc_utf8)
|
|
461 {
|
1654
|
462 int c = utf_ptr2char(STR_PTR(i));
|
|
463 int ol = utf_ptr2len(STR_PTR(i));
|
|
464 int lc = utf_tolower(c);
|
7
|
465
|
1654
|
466 /* Only replace the character when it is not an invalid
|
|
467 * sequence (ASCII character or more than one byte) and
|
|
468 * utf_tolower() doesn't return the original character. */
|
|
469 if ((c < 0x80 || ol > 1) && c != lc)
|
7
|
470 {
|
|
471 int nl = utf_char2len(lc);
|
|
472
|
|
473 /* If the byte length changes need to shift the following
|
|
474 * characters forward or backward. */
|
|
475 if (ol != nl)
|
|
476 {
|
|
477 if (nl > ol)
|
130
|
478 {
|
|
479 if (buf == NULL ? ga_grow(&ga, nl - ol + 1) == FAIL
|
|
480 : len + nl - ol >= buflen)
|
7
|
481 {
|
|
482 /* out of memory, keep old char */
|
|
483 lc = c;
|
|
484 nl = ol;
|
|
485 }
|
130
|
486 }
|
7
|
487 if (ol != nl)
|
|
488 {
|
130
|
489 if (buf == NULL)
|
|
490 {
|
1621
|
491 STRMOVE(GA_PTR(i) + nl, GA_PTR(i) + ol);
|
130
|
492 ga.ga_len += nl - ol;
|
|
493 }
|
|
494 else
|
|
495 {
|
1621
|
496 STRMOVE(buf + i + nl, buf + i + ol);
|
130
|
497 len += nl - ol;
|
|
498 }
|
7
|
499 }
|
|
500 }
|
130
|
501 (void)utf_char2bytes(lc, STR_PTR(i));
|
7
|
502 }
|
|
503 }
|
|
504 /* skip to next multi-byte char */
|
474
|
505 i += (*mb_ptr2len)(STR_PTR(i));
|
7
|
506 }
|
|
507 else
|
|
508 #endif
|
|
509 {
|
130
|
510 if (buf == NULL)
|
|
511 GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i));
|
|
512 else
|
|
513 buf[i] = TOLOWER_LOC(buf[i]);
|
7
|
514 ++i;
|
|
515 }
|
|
516 }
|
|
517
|
130
|
518 if (buf == NULL)
|
|
519 return (char_u *)ga.ga_data;
|
|
520 return buf;
|
7
|
521 }
|
|
522 #endif
|
|
523
|
|
524 /*
|
|
525 * Catch 22: chartab[] can't be initialized before the options are
|
|
526 * initialized, and initializing options may cause transchar() to be called!
|
|
527 * When chartab_initialized == FALSE don't use chartab[].
|
|
528 * Does NOT work for multi-byte characters, c must be <= 255.
|
|
529 * Also doesn't work for the first byte of a multi-byte, "c" must be a
|
|
530 * character!
|
|
531 */
|
|
532 static char_u transchar_buf[7];
|
|
533
|
|
534 char_u *
|
|
535 transchar(c)
|
|
536 int c;
|
|
537 {
|
|
538 int i;
|
|
539
|
|
540 i = 0;
|
|
541 if (IS_SPECIAL(c)) /* special key code, display as ~@ char */
|
|
542 {
|
|
543 transchar_buf[0] = '~';
|
|
544 transchar_buf[1] = '@';
|
|
545 i = 2;
|
|
546 c = K_SECOND(c);
|
|
547 }
|
|
548
|
|
549 if ((!chartab_initialized && (
|
|
550 #ifdef EBCDIC
|
|
551 (c >= 64 && c < 255)
|
|
552 #else
|
|
553 (c >= ' ' && c <= '~')
|
|
554 #endif
|
|
555 #ifdef FEAT_FKMAP
|
|
556 || F_ischar(c)
|
|
557 #endif
|
|
558 )) || (c < 256 && vim_isprintc_strict(c)))
|
|
559 {
|
|
560 /* printable character */
|
|
561 transchar_buf[i] = c;
|
|
562 transchar_buf[i + 1] = NUL;
|
|
563 }
|
|
564 else
|
|
565 transchar_nonprint(transchar_buf + i, c);
|
|
566 return transchar_buf;
|
|
567 }
|
|
568
|
|
569 #if defined(FEAT_MBYTE) || defined(PROTO)
|
|
570 /*
|
|
571 * Like transchar(), but called with a byte instead of a character. Checks
|
|
572 * for an illegal UTF-8 byte.
|
|
573 */
|
|
574 char_u *
|
|
575 transchar_byte(c)
|
|
576 int c;
|
|
577 {
|
|
578 if (enc_utf8 && c >= 0x80)
|
|
579 {
|
|
580 transchar_nonprint(transchar_buf, c);
|
|
581 return transchar_buf;
|
|
582 }
|
|
583 return transchar(c);
|
|
584 }
|
|
585 #endif
|
|
586
|
|
587 /*
|
|
588 * Convert non-printable character to two or more printable characters in
|
|
589 * "buf[]". "buf" needs to be able to hold five bytes.
|
|
590 * Does NOT work for multi-byte characters, c must be <= 255.
|
|
591 */
|
|
592 void
|
|
593 transchar_nonprint(buf, c)
|
|
594 char_u *buf;
|
|
595 int c;
|
|
596 {
|
|
597 if (c == NL)
|
|
598 c = NUL; /* we use newline in place of a NUL */
|
|
599 else if (c == CAR && get_fileformat(curbuf) == EOL_MAC)
|
|
600 c = NL; /* we use CR in place of NL in this case */
|
|
601
|
|
602 if (dy_flags & DY_UHEX) /* 'display' has "uhex" */
|
|
603 transchar_hex(buf, c);
|
|
604
|
|
605 #ifdef EBCDIC
|
|
606 /* For EBCDIC only the characters 0-63 and 255 are not printable */
|
|
607 else if (CtrlChar(c) != 0 || c == DEL)
|
|
608 #else
|
|
609 else if (c <= 0x7f) /* 0x00 - 0x1f and 0x7f */
|
|
610 #endif
|
|
611 {
|
|
612 buf[0] = '^';
|
|
613 #ifdef EBCDIC
|
|
614 if (c == DEL)
|
|
615 buf[1] = '?'; /* DEL displayed as ^? */
|
|
616 else
|
|
617 buf[1] = CtrlChar(c);
|
|
618 #else
|
|
619 buf[1] = c ^ 0x40; /* DEL displayed as ^? */
|
|
620 #endif
|
|
621
|
|
622 buf[2] = NUL;
|
|
623 }
|
|
624 #ifdef FEAT_MBYTE
|
|
625 else if (enc_utf8 && c >= 0x80)
|
|
626 {
|
|
627 transchar_hex(buf, c);
|
|
628 }
|
|
629 #endif
|
|
630 #ifndef EBCDIC
|
|
631 else if (c >= ' ' + 0x80 && c <= '~' + 0x80) /* 0xa0 - 0xfe */
|
|
632 {
|
|
633 buf[0] = '|';
|
|
634 buf[1] = c - 0x80;
|
|
635 buf[2] = NUL;
|
|
636 }
|
|
637 #else
|
|
638 else if (c < 64)
|
|
639 {
|
|
640 buf[0] = '~';
|
|
641 buf[1] = MetaChar(c);
|
|
642 buf[2] = NUL;
|
|
643 }
|
|
644 #endif
|
|
645 else /* 0x80 - 0x9f and 0xff */
|
|
646 {
|
|
647 /*
|
|
648 * TODO: EBCDIC I don't know what to do with this chars, so I display
|
|
649 * them as '~?' for now
|
|
650 */
|
|
651 buf[0] = '~';
|
|
652 #ifdef EBCDIC
|
|
653 buf[1] = '?'; /* 0xff displayed as ~? */
|
|
654 #else
|
|
655 buf[1] = (c - 0x80) ^ 0x40; /* 0xff displayed as ~? */
|
|
656 #endif
|
|
657 buf[2] = NUL;
|
|
658 }
|
|
659 }
|
|
660
|
|
661 void
|
|
662 transchar_hex(buf, c)
|
|
663 char_u *buf;
|
|
664 int c;
|
|
665 {
|
|
666 int i = 0;
|
|
667
|
|
668 buf[0] = '<';
|
|
669 #ifdef FEAT_MBYTE
|
|
670 if (c > 255)
|
|
671 {
|
|
672 buf[++i] = nr2hex((unsigned)c >> 12);
|
|
673 buf[++i] = nr2hex((unsigned)c >> 8);
|
|
674 }
|
|
675 #endif
|
|
676 buf[++i] = nr2hex((unsigned)c >> 4);
|
1869
|
677 buf[++i] = nr2hex((unsigned)c);
|
7
|
678 buf[++i] = '>';
|
|
679 buf[++i] = NUL;
|
|
680 }
|
|
681
|
|
682 /*
|
|
683 * Convert the lower 4 bits of byte "c" to its hex character.
|
|
684 * Lower case letters are used to avoid the confusion of <F1> being 0xf1 or
|
|
685 * function key 1.
|
|
686 */
|
1869
|
687 static unsigned
|
7
|
688 nr2hex(c)
|
1869
|
689 unsigned c;
|
7
|
690 {
|
|
691 if ((c & 0xf) <= 9)
|
|
692 return (c & 0xf) + '0';
|
|
693 return (c & 0xf) - 10 + 'a';
|
|
694 }
|
|
695
|
|
696 /*
|
|
697 * Return number of display cells occupied by byte "b".
|
|
698 * Caller must make sure 0 <= b <= 255.
|
|
699 * For multi-byte mode "b" must be the first byte of a character.
|
|
700 * A TAB is counted as two cells: "^I".
|
|
701 * For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of
|
|
702 * cells depends on further bytes.
|
|
703 */
|
|
704 int
|
|
705 byte2cells(b)
|
|
706 int b;
|
|
707 {
|
|
708 #ifdef FEAT_MBYTE
|
|
709 if (enc_utf8 && b >= 0x80)
|
|
710 return 0;
|
|
711 #endif
|
|
712 return (chartab[b] & CT_CELL_MASK);
|
|
713 }
|
|
714
|
|
715 /*
|
|
716 * Return number of display cells occupied by character "c".
|
|
717 * "c" can be a special key (negative number) in which case 3 or 4 is returned.
|
|
718 * A TAB is counted as two cells: "^I" or four: "<09>".
|
|
719 */
|
|
720 int
|
|
721 char2cells(c)
|
|
722 int c;
|
|
723 {
|
|
724 if (IS_SPECIAL(c))
|
|
725 return char2cells(K_SECOND(c)) + 2;
|
|
726 #ifdef FEAT_MBYTE
|
|
727 if (c >= 0x80)
|
|
728 {
|
|
729 /* UTF-8: above 0x80 need to check the value */
|
|
730 if (enc_utf8)
|
|
731 return utf_char2cells(c);
|
|
732 /* DBCS: double-byte means double-width, except for euc-jp with first
|
|
733 * byte 0x8e */
|
|
734 if (enc_dbcs != 0 && c >= 0x100)
|
|
735 {
|
|
736 if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e)
|
|
737 return 1;
|
|
738 return 2;
|
|
739 }
|
|
740 }
|
|
741 #endif
|
|
742 return (chartab[c & 0xff] & CT_CELL_MASK);
|
|
743 }
|
|
744
|
|
745 /*
|
|
746 * Return number of display cells occupied by character at "*p".
|
|
747 * A TAB is counted as two cells: "^I" or four: "<09>".
|
|
748 */
|
|
749 int
|
|
750 ptr2cells(p)
|
|
751 char_u *p;
|
|
752 {
|
|
753 #ifdef FEAT_MBYTE
|
|
754 /* For UTF-8 we need to look at more bytes if the first byte is >= 0x80. */
|
|
755 if (enc_utf8 && *p >= 0x80)
|
|
756 return utf_ptr2cells(p);
|
|
757 /* For DBCS we can tell the cell count from the first byte. */
|
|
758 #endif
|
|
759 return (chartab[*p] & CT_CELL_MASK);
|
|
760 }
|
|
761
|
|
762 /*
|
|
763 * Return the number of characters string "s" will take on the screen,
|
|
764 * counting TABs as two characters: "^I".
|
|
765 */
|
|
766 int
|
|
767 vim_strsize(s)
|
|
768 char_u *s;
|
|
769 {
|
|
770 return vim_strnsize(s, (int)MAXCOL);
|
|
771 }
|
|
772
|
|
773 /*
|
|
774 * Return the number of characters string "s[len]" will take on the screen,
|
|
775 * counting TABs as two characters: "^I".
|
|
776 */
|
|
777 int
|
|
778 vim_strnsize(s, len)
|
|
779 char_u *s;
|
|
780 int len;
|
|
781 {
|
|
782 int size = 0;
|
|
783
|
|
784 while (*s != NUL && --len >= 0)
|
|
785 {
|
|
786 #ifdef FEAT_MBYTE
|
|
787 if (has_mbyte)
|
|
788 {
|
474
|
789 int l = (*mb_ptr2len)(s);
|
7
|
790
|
|
791 size += ptr2cells(s);
|
|
792 s += l;
|
|
793 len -= l - 1;
|
|
794 }
|
|
795 else
|
|
796 #endif
|
|
797 size += byte2cells(*s++);
|
|
798 }
|
|
799 return size;
|
|
800 }
|
|
801
|
|
802 /*
|
|
803 * Return the number of characters 'c' will take on the screen, taking
|
|
804 * into account the size of a tab.
|
|
805 * Use a define to make it fast, this is used very often!!!
|
|
806 * Also see getvcol() below.
|
|
807 */
|
|
808
|
|
809 #define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \
|
|
810 if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \
|
|
811 { \
|
|
812 int ts; \
|
|
813 ts = (buf)->b_p_ts; \
|
|
814 return (int)(ts - (col % ts)); \
|
|
815 } \
|
|
816 else \
|
|
817 return ptr2cells(p);
|
|
818
|
|
819 #if defined(FEAT_VREPLACE) || defined(FEAT_EX_EXTRA) || defined(FEAT_GUI) \
|
|
820 || defined(FEAT_VIRTUALEDIT) || defined(PROTO)
|
|
821 int
|
|
822 chartabsize(p, col)
|
|
823 char_u *p;
|
|
824 colnr_T col;
|
|
825 {
|
|
826 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col)
|
|
827 }
|
|
828 #endif
|
|
829
|
|
830 #ifdef FEAT_LINEBREAK
|
|
831 static int
|
|
832 win_chartabsize(wp, p, col)
|
|
833 win_T *wp;
|
|
834 char_u *p;
|
|
835 colnr_T col;
|
|
836 {
|
|
837 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col)
|
|
838 }
|
|
839 #endif
|
|
840
|
|
841 /*
|
|
842 * return the number of characters the string 's' will take on the screen,
|
|
843 * taking into account the size of a tab
|
|
844 */
|
|
845 int
|
|
846 linetabsize(s)
|
|
847 char_u *s;
|
|
848 {
|
|
849 colnr_T col = 0;
|
|
850
|
|
851 while (*s != NUL)
|
|
852 col += lbr_chartabsize_adv(&s, col);
|
|
853 return (int)col;
|
|
854 }
|
|
855
|
|
856 /*
|
|
857 * Like linetabsize(), but for a given window instead of the current one.
|
|
858 */
|
|
859 int
|
|
860 win_linetabsize(wp, p, len)
|
|
861 win_T *wp;
|
|
862 char_u *p;
|
|
863 colnr_T len;
|
|
864 {
|
|
865 colnr_T col = 0;
|
|
866 char_u *s;
|
|
867
|
40
|
868 for (s = p; *s != NUL && (len == MAXCOL || s < p + len); mb_ptr_adv(s))
|
7
|
869 col += win_lbr_chartabsize(wp, s, col, NULL);
|
|
870 return (int)col;
|
|
871 }
|
|
872
|
|
873 /*
|
42
|
874 * Return TRUE if 'c' is a normal identifier character:
|
|
875 * Letters and characters from the 'isident' option.
|
7
|
876 */
|
|
877 int
|
|
878 vim_isIDc(c)
|
|
879 int c;
|
|
880 {
|
|
881 return (c > 0 && c < 0x100 && (chartab[c] & CT_ID_CHAR));
|
|
882 }
|
|
883
|
|
884 /*
|
|
885 * return TRUE if 'c' is a keyword character: Letters and characters from
|
|
886 * 'iskeyword' option for current buffer.
|
|
887 * For multi-byte characters mb_get_class() is used (builtin rules).
|
|
888 */
|
|
889 int
|
|
890 vim_iswordc(c)
|
|
891 int c;
|
|
892 {
|
|
893 #ifdef FEAT_MBYTE
|
|
894 if (c >= 0x100)
|
|
895 {
|
|
896 if (enc_dbcs != 0)
|
1869
|
897 return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2;
|
7
|
898 if (enc_utf8)
|
|
899 return utf_class(c) >= 2;
|
|
900 }
|
|
901 #endif
|
|
902 return (c > 0 && c < 0x100 && GET_CHARTAB(curbuf, c) != 0);
|
|
903 }
|
|
904
|
|
905 /*
|
|
906 * Just like vim_iswordc() but uses a pointer to the (multi-byte) character.
|
|
907 */
|
|
908 int
|
|
909 vim_iswordp(p)
|
|
910 char_u *p;
|
|
911 {
|
|
912 #ifdef FEAT_MBYTE
|
|
913 if (has_mbyte && MB_BYTE2LEN(*p) > 1)
|
|
914 return mb_get_class(p) >= 2;
|
|
915 #endif
|
|
916 return GET_CHARTAB(curbuf, *p) != 0;
|
|
917 }
|
|
918
|
|
919 #if defined(FEAT_SYN_HL) || defined(PROTO)
|
|
920 int
|
|
921 vim_iswordc_buf(p, buf)
|
|
922 char_u *p;
|
|
923 buf_T *buf;
|
|
924 {
|
|
925 # ifdef FEAT_MBYTE
|
|
926 if (has_mbyte && MB_BYTE2LEN(*p) > 1)
|
|
927 return mb_get_class(p) >= 2;
|
|
928 # endif
|
|
929 return (GET_CHARTAB(buf, *p) != 0);
|
|
930 }
|
741
|
931 #endif
|
7
|
932
|
|
933 /*
|
|
934 * return TRUE if 'c' is a valid file-name character
|
|
935 * Assume characters above 0x100 are valid (multi-byte).
|
|
936 */
|
|
937 int
|
|
938 vim_isfilec(c)
|
|
939 int c;
|
|
940 {
|
|
941 return (c >= 0x100 || (c > 0 && (chartab[c] & CT_FNAME_CHAR)));
|
|
942 }
|
|
943
|
|
944 /*
|
1369
|
945 * return TRUE if 'c' is a valid file-name character or a wildcard character
|
|
946 * Assume characters above 0x100 are valid (multi-byte).
|
|
947 * Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]")
|
|
948 * returns false.
|
|
949 */
|
|
950 int
|
|
951 vim_isfilec_or_wc(c)
|
|
952 int c;
|
|
953 {
|
|
954 char_u buf[2];
|
|
955
|
|
956 buf[0] = (char_u)c;
|
|
957 buf[1] = NUL;
|
|
958 return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf);
|
|
959 }
|
|
960
|
|
961 /*
|
7
|
962 * return TRUE if 'c' is a printable character
|
|
963 * Assume characters above 0x100 are printable (multi-byte), except for
|
|
964 * Unicode.
|
|
965 */
|
|
966 int
|
|
967 vim_isprintc(c)
|
|
968 int c;
|
|
969 {
|
|
970 #ifdef FEAT_MBYTE
|
|
971 if (enc_utf8 && c >= 0x100)
|
|
972 return utf_printable(c);
|
|
973 #endif
|
|
974 return (c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR)));
|
|
975 }
|
|
976
|
|
977 /*
|
|
978 * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head
|
|
979 * byte of a double-byte character.
|
|
980 */
|
|
981 int
|
|
982 vim_isprintc_strict(c)
|
|
983 int c;
|
|
984 {
|
|
985 #ifdef FEAT_MBYTE
|
|
986 if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1)
|
|
987 return FALSE;
|
|
988 if (enc_utf8 && c >= 0x100)
|
|
989 return utf_printable(c);
|
|
990 #endif
|
|
991 return (c >= 0x100 || (c > 0 && (chartab[c] & CT_PRINT_CHAR)));
|
|
992 }
|
|
993
|
|
994 /*
|
|
995 * like chartabsize(), but also check for line breaks on the screen
|
|
996 */
|
|
997 int
|
|
998 lbr_chartabsize(s, col)
|
|
999 unsigned char *s;
|
|
1000 colnr_T col;
|
|
1001 {
|
|
1002 #ifdef FEAT_LINEBREAK
|
|
1003 if (!curwin->w_p_lbr && *p_sbr == NUL)
|
|
1004 {
|
|
1005 #endif
|
|
1006 #ifdef FEAT_MBYTE
|
|
1007 if (curwin->w_p_wrap)
|
|
1008 return win_nolbr_chartabsize(curwin, s, col, NULL);
|
|
1009 #endif
|
|
1010 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col)
|
|
1011 #ifdef FEAT_LINEBREAK
|
|
1012 }
|
|
1013 return win_lbr_chartabsize(curwin, s, col, NULL);
|
|
1014 #endif
|
|
1015 }
|
|
1016
|
|
1017 /*
|
|
1018 * Call lbr_chartabsize() and advance the pointer.
|
|
1019 */
|
|
1020 int
|
|
1021 lbr_chartabsize_adv(s, col)
|
|
1022 char_u **s;
|
|
1023 colnr_T col;
|
|
1024 {
|
|
1025 int retval;
|
|
1026
|
|
1027 retval = lbr_chartabsize(*s, col);
|
39
|
1028 mb_ptr_adv(*s);
|
7
|
1029 return retval;
|
|
1030 }
|
|
1031
|
|
1032 /*
|
|
1033 * This function is used very often, keep it fast!!!!
|
|
1034 *
|
|
1035 * If "headp" not NULL, set *headp to the size of what we for 'showbreak'
|
|
1036 * string at start of line. Warning: *headp is only set if it's a non-zero
|
|
1037 * value, init to 0 before calling.
|
|
1038 */
|
|
1039 int
|
|
1040 win_lbr_chartabsize(wp, s, col, headp)
|
|
1041 win_T *wp;
|
|
1042 char_u *s;
|
|
1043 colnr_T col;
|
1876
|
1044 int *headp UNUSED;
|
7
|
1045 {
|
|
1046 #ifdef FEAT_LINEBREAK
|
|
1047 int c;
|
|
1048 int size;
|
|
1049 colnr_T col2;
|
|
1050 colnr_T colmax;
|
|
1051 int added;
|
|
1052 # ifdef FEAT_MBYTE
|
|
1053 int mb_added = 0;
|
|
1054 # else
|
|
1055 # define mb_added 0
|
|
1056 # endif
|
|
1057 int numberextra;
|
|
1058 char_u *ps;
|
|
1059 int tab_corr = (*s == TAB);
|
236
|
1060 int n;
|
7
|
1061
|
|
1062 /*
|
|
1063 * No 'linebreak' and 'showbreak': return quickly.
|
|
1064 */
|
|
1065 if (!wp->w_p_lbr && *p_sbr == NUL)
|
|
1066 #endif
|
|
1067 {
|
|
1068 #ifdef FEAT_MBYTE
|
|
1069 if (wp->w_p_wrap)
|
|
1070 return win_nolbr_chartabsize(wp, s, col, headp);
|
|
1071 #endif
|
|
1072 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col)
|
|
1073 }
|
|
1074
|
|
1075 #ifdef FEAT_LINEBREAK
|
|
1076 /*
|
|
1077 * First get normal size, without 'linebreak'
|
|
1078 */
|
|
1079 size = win_chartabsize(wp, s, col);
|
|
1080 c = *s;
|
|
1081
|
|
1082 /*
|
|
1083 * If 'linebreak' set check at a blank before a non-blank if the line
|
|
1084 * needs a break here
|
|
1085 */
|
|
1086 if (wp->w_p_lbr
|
|
1087 && vim_isbreak(c)
|
|
1088 && !vim_isbreak(s[1])
|
|
1089 && !wp->w_p_list
|
|
1090 && wp->w_p_wrap
|
|
1091 # ifdef FEAT_VERTSPLIT
|
|
1092 && wp->w_width != 0
|
|
1093 # endif
|
|
1094 )
|
|
1095 {
|
|
1096 /*
|
|
1097 * Count all characters from first non-blank after a blank up to next
|
|
1098 * non-blank after a blank.
|
|
1099 */
|
|
1100 numberextra = win_col_off(wp);
|
|
1101 col2 = col;
|
1869
|
1102 colmax = (colnr_T)(W_WIDTH(wp) - numberextra);
|
7
|
1103 if (col >= colmax)
|
236
|
1104 {
|
|
1105 n = colmax + win_col_off2(wp);
|
|
1106 if (n > 0)
|
|
1107 colmax += (((col - colmax) / n) + 1) * n;
|
|
1108 }
|
|
1109
|
7
|
1110 for (;;)
|
|
1111 {
|
|
1112 ps = s;
|
39
|
1113 mb_ptr_adv(s);
|
7
|
1114 c = *s;
|
|
1115 if (!(c != NUL
|
|
1116 && (vim_isbreak(c)
|
|
1117 || (!vim_isbreak(c)
|
|
1118 && (col2 == col || !vim_isbreak(*ps))))))
|
|
1119 break;
|
|
1120
|
|
1121 col2 += win_chartabsize(wp, s, col2);
|
|
1122 if (col2 >= colmax) /* doesn't fit */
|
|
1123 {
|
|
1124 size = colmax - col;
|
|
1125 tab_corr = FALSE;
|
|
1126 break;
|
|
1127 }
|
|
1128 }
|
|
1129 }
|
|
1130 # ifdef FEAT_MBYTE
|
|
1131 else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1
|
|
1132 && wp->w_p_wrap && in_win_border(wp, col))
|
|
1133 {
|
|
1134 ++size; /* Count the ">" in the last column. */
|
|
1135 mb_added = 1;
|
|
1136 }
|
|
1137 # endif
|
|
1138
|
|
1139 /*
|
|
1140 * May have to add something for 'showbreak' string at start of line
|
|
1141 * Set *headp to the size of what we add.
|
|
1142 */
|
|
1143 added = 0;
|
|
1144 if (*p_sbr != NUL && wp->w_p_wrap && col != 0)
|
|
1145 {
|
|
1146 numberextra = win_col_off(wp);
|
|
1147 col += numberextra + mb_added;
|
|
1148 if (col >= (colnr_T)W_WIDTH(wp))
|
|
1149 {
|
|
1150 col -= W_WIDTH(wp);
|
|
1151 numberextra = W_WIDTH(wp) - (numberextra - win_col_off2(wp));
|
|
1152 if (numberextra > 0)
|
|
1153 col = col % numberextra;
|
|
1154 }
|
|
1155 if (col == 0 || col + size > (colnr_T)W_WIDTH(wp))
|
|
1156 {
|
|
1157 added = vim_strsize(p_sbr);
|
|
1158 if (tab_corr)
|
|
1159 size += (added / wp->w_buffer->b_p_ts) * wp->w_buffer->b_p_ts;
|
|
1160 else
|
|
1161 size += added;
|
|
1162 if (col != 0)
|
|
1163 added = 0;
|
|
1164 }
|
|
1165 }
|
|
1166 if (headp != NULL)
|
|
1167 *headp = added + mb_added;
|
|
1168 return size;
|
|
1169 #endif
|
|
1170 }
|
|
1171
|
|
1172 #if defined(FEAT_MBYTE) || defined(PROTO)
|
|
1173 /*
|
|
1174 * Like win_lbr_chartabsize(), except that we know 'linebreak' is off and
|
|
1175 * 'wrap' is on. This means we need to check for a double-byte character that
|
|
1176 * doesn't fit at the end of the screen line.
|
|
1177 */
|
|
1178 static int
|
|
1179 win_nolbr_chartabsize(wp, s, col, headp)
|
|
1180 win_T *wp;
|
|
1181 char_u *s;
|
|
1182 colnr_T col;
|
|
1183 int *headp;
|
|
1184 {
|
|
1185 int n;
|
|
1186
|
|
1187 if (*s == TAB && (!wp->w_p_list || lcs_tab1))
|
|
1188 {
|
|
1189 n = wp->w_buffer->b_p_ts;
|
|
1190 return (int)(n - (col % n));
|
|
1191 }
|
|
1192 n = ptr2cells(s);
|
|
1193 /* Add one cell for a double-width character in the last column of the
|
|
1194 * window, displayed with a ">". */
|
|
1195 if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col))
|
|
1196 {
|
|
1197 if (headp != NULL)
|
|
1198 *headp = 1;
|
|
1199 return 3;
|
|
1200 }
|
|
1201 return n;
|
|
1202 }
|
|
1203
|
|
1204 /*
|
|
1205 * Return TRUE if virtual column "vcol" is in the rightmost column of window
|
|
1206 * "wp".
|
|
1207 */
|
|
1208 int
|
|
1209 in_win_border(wp, vcol)
|
|
1210 win_T *wp;
|
|
1211 colnr_T vcol;
|
|
1212 {
|
1869
|
1213 int width1; /* width of first line (after line number) */
|
|
1214 int width2; /* width of further lines */
|
7
|
1215
|
|
1216 #ifdef FEAT_VERTSPLIT
|
|
1217 if (wp->w_width == 0) /* there is no border */
|
|
1218 return FALSE;
|
|
1219 #endif
|
|
1220 width1 = W_WIDTH(wp) - win_col_off(wp);
|
1869
|
1221 if ((int)vcol < width1 - 1)
|
7
|
1222 return FALSE;
|
1869
|
1223 if ((int)vcol == width1 - 1)
|
7
|
1224 return TRUE;
|
|
1225 width2 = width1 + win_col_off2(wp);
|
1970
|
1226 if (width2 <= 0)
|
|
1227 return FALSE;
|
7
|
1228 return ((vcol - width1) % width2 == width2 - 1);
|
|
1229 }
|
|
1230 #endif /* FEAT_MBYTE */
|
|
1231
|
|
1232 /*
|
|
1233 * Get virtual column number of pos.
|
|
1234 * start: on the first position of this character (TAB, ctrl)
|
|
1235 * cursor: where the cursor is on this character (first char, except for TAB)
|
|
1236 * end: on the last position of this character (TAB, ctrl)
|
|
1237 *
|
|
1238 * This is used very often, keep it fast!
|
|
1239 */
|
|
1240 void
|
|
1241 getvcol(wp, pos, start, cursor, end)
|
|
1242 win_T *wp;
|
|
1243 pos_T *pos;
|
|
1244 colnr_T *start;
|
|
1245 colnr_T *cursor;
|
|
1246 colnr_T *end;
|
|
1247 {
|
|
1248 colnr_T vcol;
|
|
1249 char_u *ptr; /* points to current char */
|
|
1250 char_u *posptr; /* points to char at pos->col */
|
|
1251 int incr;
|
|
1252 int head;
|
|
1253 int ts = wp->w_buffer->b_p_ts;
|
|
1254 int c;
|
|
1255
|
|
1256 vcol = 0;
|
|
1257 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
|
|
1258 posptr = ptr + pos->col;
|
|
1259
|
|
1260 /*
|
|
1261 * This function is used very often, do some speed optimizations.
|
|
1262 * When 'list', 'linebreak' and 'showbreak' are not set use a simple loop.
|
|
1263 * Also use this when 'list' is set but tabs take their normal size.
|
|
1264 */
|
|
1265 if ((!wp->w_p_list || lcs_tab1 != NUL)
|
|
1266 #ifdef FEAT_LINEBREAK
|
|
1267 && !wp->w_p_lbr && *p_sbr == NUL
|
|
1268 #endif
|
|
1269 )
|
|
1270 {
|
|
1271 #ifndef FEAT_MBYTE
|
|
1272 head = 0;
|
|
1273 #endif
|
|
1274 for (;;)
|
|
1275 {
|
|
1276 #ifdef FEAT_MBYTE
|
|
1277 head = 0;
|
|
1278 #endif
|
|
1279 c = *ptr;
|
|
1280 /* make sure we don't go past the end of the line */
|
|
1281 if (c == NUL)
|
|
1282 {
|
|
1283 incr = 1; /* NUL at end of line only takes one column */
|
|
1284 break;
|
|
1285 }
|
|
1286 /* A tab gets expanded, depending on the current column */
|
|
1287 if (c == TAB)
|
|
1288 incr = ts - (vcol % ts);
|
|
1289 else
|
|
1290 {
|
|
1291 #ifdef FEAT_MBYTE
|
|
1292 if (has_mbyte)
|
|
1293 {
|
|
1294 /* For utf-8, if the byte is >= 0x80, need to look at
|
|
1295 * further bytes to find the cell width. */
|
|
1296 if (enc_utf8 && c >= 0x80)
|
|
1297 incr = utf_ptr2cells(ptr);
|
|
1298 else
|
|
1299 incr = CHARSIZE(c);
|
|
1300
|
|
1301 /* If a double-cell char doesn't fit at the end of a line
|
|
1302 * it wraps to the next line, it's like this char is three
|
|
1303 * cells wide. */
|
1546
|
1304 if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1
|
|
1305 && in_win_border(wp, vcol))
|
7
|
1306 {
|
|
1307 ++incr;
|
|
1308 head = 1;
|
|
1309 }
|
|
1310 }
|
|
1311 else
|
|
1312 #endif
|
|
1313 incr = CHARSIZE(c);
|
|
1314 }
|
|
1315
|
|
1316 if (ptr >= posptr) /* character at pos->col */
|
|
1317 break;
|
|
1318
|
|
1319 vcol += incr;
|
39
|
1320 mb_ptr_adv(ptr);
|
7
|
1321 }
|
|
1322 }
|
|
1323 else
|
|
1324 {
|
|
1325 for (;;)
|
|
1326 {
|
|
1327 /* A tab gets expanded, depending on the current column */
|
|
1328 head = 0;
|
|
1329 incr = win_lbr_chartabsize(wp, ptr, vcol, &head);
|
|
1330 /* make sure we don't go past the end of the line */
|
|
1331 if (*ptr == NUL)
|
|
1332 {
|
|
1333 incr = 1; /* NUL at end of line only takes one column */
|
|
1334 break;
|
|
1335 }
|
|
1336
|
|
1337 if (ptr >= posptr) /* character at pos->col */
|
|
1338 break;
|
|
1339
|
|
1340 vcol += incr;
|
39
|
1341 mb_ptr_adv(ptr);
|
7
|
1342 }
|
|
1343 }
|
|
1344 if (start != NULL)
|
|
1345 *start = vcol + head;
|
|
1346 if (end != NULL)
|
|
1347 *end = vcol + incr - 1;
|
|
1348 if (cursor != NULL)
|
|
1349 {
|
|
1350 if (*ptr == TAB
|
|
1351 && (State & NORMAL)
|
|
1352 && !wp->w_p_list
|
|
1353 && !virtual_active()
|
|
1354 #ifdef FEAT_VISUAL
|
|
1355 && !(VIsual_active
|
|
1356 && (*p_sel == 'e' || ltoreq(*pos, VIsual)))
|
|
1357 #endif
|
|
1358 )
|
|
1359 *cursor = vcol + incr - 1; /* cursor at end */
|
|
1360 else
|
|
1361 *cursor = vcol + head; /* cursor at start */
|
|
1362 }
|
|
1363 }
|
|
1364
|
|
1365 /*
|
|
1366 * Get virtual cursor column in the current window, pretending 'list' is off.
|
|
1367 */
|
|
1368 colnr_T
|
|
1369 getvcol_nolist(posp)
|
|
1370 pos_T *posp;
|
|
1371 {
|
|
1372 int list_save = curwin->w_p_list;
|
|
1373 colnr_T vcol;
|
|
1374
|
|
1375 curwin->w_p_list = FALSE;
|
|
1376 getvcol(curwin, posp, NULL, &vcol, NULL);
|
|
1377 curwin->w_p_list = list_save;
|
|
1378 return vcol;
|
|
1379 }
|
|
1380
|
|
1381 #if defined(FEAT_VIRTUALEDIT) || defined(PROTO)
|
|
1382 /*
|
|
1383 * Get virtual column in virtual mode.
|
|
1384 */
|
|
1385 void
|
|
1386 getvvcol(wp, pos, start, cursor, end)
|
|
1387 win_T *wp;
|
|
1388 pos_T *pos;
|
|
1389 colnr_T *start;
|
|
1390 colnr_T *cursor;
|
|
1391 colnr_T *end;
|
|
1392 {
|
|
1393 colnr_T col;
|
|
1394 colnr_T coladd;
|
|
1395 colnr_T endadd;
|
|
1396 # ifdef FEAT_MBYTE
|
|
1397 char_u *ptr;
|
|
1398 # endif
|
|
1399
|
|
1400 if (virtual_active())
|
|
1401 {
|
|
1402 /* For virtual mode, only want one value */
|
|
1403 getvcol(wp, pos, &col, NULL, NULL);
|
|
1404
|
|
1405 coladd = pos->coladd;
|
|
1406 endadd = 0;
|
|
1407 # ifdef FEAT_MBYTE
|
|
1408 /* Cannot put the cursor on part of a wide character. */
|
|
1409 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE);
|
1869
|
1410 if (pos->col < (colnr_T)STRLEN(ptr))
|
7
|
1411 {
|
|
1412 int c = (*mb_ptr2char)(ptr + pos->col);
|
|
1413
|
|
1414 if (c != TAB && vim_isprintc(c))
|
|
1415 {
|
1869
|
1416 endadd = (colnr_T)(char2cells(c) - 1);
|
557
|
1417 if (coladd > endadd) /* past end of line */
|
|
1418 endadd = 0;
|
7
|
1419 else
|
|
1420 coladd = 0;
|
|
1421 }
|
|
1422 }
|
|
1423 # endif
|
|
1424 col += coladd;
|
|
1425 if (start != NULL)
|
|
1426 *start = col;
|
|
1427 if (cursor != NULL)
|
|
1428 *cursor = col;
|
|
1429 if (end != NULL)
|
|
1430 *end = col + endadd;
|
|
1431 }
|
|
1432 else
|
|
1433 getvcol(wp, pos, start, cursor, end);
|
|
1434 }
|
|
1435 #endif
|
|
1436
|
|
1437 #if defined(FEAT_VISUAL) || defined(PROTO)
|
|
1438 /*
|
|
1439 * Get the leftmost and rightmost virtual column of pos1 and pos2.
|
|
1440 * Used for Visual block mode.
|
|
1441 */
|
|
1442 void
|
|
1443 getvcols(wp, pos1, pos2, left, right)
|
|
1444 win_T *wp;
|
|
1445 pos_T *pos1, *pos2;
|
|
1446 colnr_T *left, *right;
|
|
1447 {
|
|
1448 colnr_T from1, from2, to1, to2;
|
|
1449
|
|
1450 if (ltp(pos1, pos2))
|
|
1451 {
|
|
1452 getvvcol(wp, pos1, &from1, NULL, &to1);
|
|
1453 getvvcol(wp, pos2, &from2, NULL, &to2);
|
|
1454 }
|
|
1455 else
|
|
1456 {
|
|
1457 getvvcol(wp, pos2, &from1, NULL, &to1);
|
|
1458 getvvcol(wp, pos1, &from2, NULL, &to2);
|
|
1459 }
|
|
1460 if (from2 < from1)
|
|
1461 *left = from2;
|
|
1462 else
|
|
1463 *left = from1;
|
|
1464 if (to2 > to1)
|
|
1465 {
|
|
1466 if (*p_sel == 'e' && from2 - 1 >= to1)
|
|
1467 *right = from2 - 1;
|
|
1468 else
|
|
1469 *right = to2;
|
|
1470 }
|
|
1471 else
|
|
1472 *right = to1;
|
|
1473 }
|
|
1474 #endif
|
|
1475
|
|
1476 /*
|
|
1477 * skipwhite: skip over ' ' and '\t'.
|
|
1478 */
|
|
1479 char_u *
|
1687
|
1480 skipwhite(q)
|
|
1481 char_u *q;
|
7
|
1482 {
|
1687
|
1483 char_u *p = q;
|
|
1484
|
7
|
1485 while (vim_iswhite(*p)) /* skip to next non-white */
|
|
1486 ++p;
|
|
1487 return p;
|
|
1488 }
|
|
1489
|
|
1490 /*
|
293
|
1491 * skip over digits
|
7
|
1492 */
|
|
1493 char_u *
|
1687
|
1494 skipdigits(q)
|
|
1495 char_u *q;
|
7
|
1496 {
|
1687
|
1497 char_u *p = q;
|
|
1498
|
7
|
1499 while (VIM_ISDIGIT(*p)) /* skip to next non-digit */
|
|
1500 ++p;
|
|
1501 return p;
|
|
1502 }
|
|
1503
|
741
|
1504 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO)
|
301
|
1505 /*
|
|
1506 * skip over digits and hex characters
|
|
1507 */
|
|
1508 char_u *
|
1687
|
1509 skiphex(q)
|
|
1510 char_u *q;
|
301
|
1511 {
|
1687
|
1512 char_u *p = q;
|
|
1513
|
301
|
1514 while (vim_isxdigit(*p)) /* skip to next non-digit */
|
|
1515 ++p;
|
|
1516 return p;
|
|
1517 }
|
|
1518 #endif
|
|
1519
|
293
|
1520 #if defined(FEAT_EX_EXTRA) || defined(PROTO)
|
|
1521 /*
|
|
1522 * skip to digit (or NUL after the string)
|
|
1523 */
|
|
1524 char_u *
|
1687
|
1525 skiptodigit(q)
|
|
1526 char_u *q;
|
293
|
1527 {
|
1687
|
1528 char_u *p = q;
|
|
1529
|
293
|
1530 while (*p != NUL && !VIM_ISDIGIT(*p)) /* skip to next digit */
|
|
1531 ++p;
|
|
1532 return p;
|
|
1533 }
|
|
1534
|
|
1535 /*
|
|
1536 * skip to hex character (or NUL after the string)
|
|
1537 */
|
|
1538 char_u *
|
1687
|
1539 skiptohex(q)
|
|
1540 char_u *q;
|
293
|
1541 {
|
1687
|
1542 char_u *p = q;
|
|
1543
|
293
|
1544 while (*p != NUL && !vim_isxdigit(*p)) /* skip to next digit */
|
|
1545 ++p;
|
|
1546 return p;
|
|
1547 }
|
|
1548 #endif
|
|
1549
|
7
|
1550 /*
|
|
1551 * Variant of isdigit() that can handle characters > 0x100.
|
|
1552 * We don't use isdigit() here, because on some systems it also considers
|
|
1553 * superscript 1 to be a digit.
|
|
1554 * Use the VIM_ISDIGIT() macro for simple arguments.
|
|
1555 */
|
|
1556 int
|
|
1557 vim_isdigit(c)
|
|
1558 int c;
|
|
1559 {
|
|
1560 return (c >= '0' && c <= '9');
|
|
1561 }
|
|
1562
|
|
1563 /*
|
|
1564 * Variant of isxdigit() that can handle characters > 0x100.
|
|
1565 * We don't use isxdigit() here, because on some systems it also considers
|
|
1566 * superscript 1 to be a digit.
|
|
1567 */
|
|
1568 int
|
|
1569 vim_isxdigit(c)
|
|
1570 int c;
|
|
1571 {
|
|
1572 return (c >= '0' && c <= '9')
|
|
1573 || (c >= 'a' && c <= 'f')
|
|
1574 || (c >= 'A' && c <= 'F');
|
|
1575 }
|
|
1576
|
492
|
1577 #if defined(FEAT_MBYTE) || defined(PROTO)
|
|
1578 /*
|
|
1579 * Vim's own character class functions. These exist because many library
|
|
1580 * islower()/toupper() etc. do not work properly: they crash when used with
|
|
1581 * invalid values or can't handle latin1 when the locale is C.
|
|
1582 * Speed is most important here.
|
|
1583 */
|
|
1584 #define LATIN1LOWER 'l'
|
|
1585 #define LATIN1UPPER 'U'
|
|
1586
|
|
1587 /* !"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]%_'abcdefghijklmnopqrstuvwxyz{|}~ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ */
|
497
|
1588 static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll";
|
|
1589 static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ÷ØÙÚÛÜÝÞÿ";
|
|
1590 static char_u latin1lower[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§¨©ª«¬®¯°±²³´µ¶·¸¹º»¼½¾¿àáâãäåæçèéêëìíîïðñòóôõö×øùúûüýþßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþÿ";
|
492
|
1591
|
|
1592 int
|
|
1593 vim_islower(c)
|
|
1594 int c;
|
|
1595 {
|
|
1596 if (c <= '@')
|
|
1597 return FALSE;
|
|
1598 if (c >= 0x80)
|
|
1599 {
|
|
1600 if (enc_utf8)
|
|
1601 return utf_islower(c);
|
|
1602 if (c >= 0x100)
|
|
1603 {
|
|
1604 #ifdef HAVE_ISWLOWER
|
|
1605 if (has_mbyte)
|
|
1606 return iswlower(c);
|
|
1607 #endif
|
|
1608 /* islower() can't handle these chars and may crash */
|
|
1609 return FALSE;
|
|
1610 }
|
|
1611 if (enc_latin1like)
|
|
1612 return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER;
|
|
1613 }
|
|
1614 return islower(c);
|
|
1615 }
|
|
1616
|
|
1617 int
|
|
1618 vim_isupper(c)
|
|
1619 int c;
|
|
1620 {
|
|
1621 if (c <= '@')
|
|
1622 return FALSE;
|
|
1623 if (c >= 0x80)
|
|
1624 {
|
|
1625 if (enc_utf8)
|
|
1626 return utf_isupper(c);
|
|
1627 if (c >= 0x100)
|
|
1628 {
|
|
1629 #ifdef HAVE_ISWUPPER
|
|
1630 if (has_mbyte)
|
|
1631 return iswupper(c);
|
|
1632 #endif
|
|
1633 /* islower() can't handle these chars and may crash */
|
|
1634 return FALSE;
|
|
1635 }
|
|
1636 if (enc_latin1like)
|
|
1637 return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER;
|
|
1638 }
|
|
1639 return isupper(c);
|
|
1640 }
|
|
1641
|
|
1642 int
|
|
1643 vim_toupper(c)
|
|
1644 int c;
|
|
1645 {
|
|
1646 if (c <= '@')
|
|
1647 return c;
|
|
1648 if (c >= 0x80)
|
|
1649 {
|
|
1650 if (enc_utf8)
|
|
1651 return utf_toupper(c);
|
|
1652 if (c >= 0x100)
|
|
1653 {
|
|
1654 #ifdef HAVE_TOWUPPER
|
|
1655 if (has_mbyte)
|
|
1656 return towupper(c);
|
|
1657 #endif
|
|
1658 /* toupper() can't handle these chars and may crash */
|
|
1659 return c;
|
|
1660 }
|
|
1661 if (enc_latin1like)
|
|
1662 return latin1upper[c];
|
|
1663 }
|
|
1664 return TOUPPER_LOC(c);
|
|
1665 }
|
|
1666
|
|
1667 int
|
|
1668 vim_tolower(c)
|
|
1669 int c;
|
|
1670 {
|
|
1671 if (c <= '@')
|
|
1672 return c;
|
|
1673 if (c >= 0x80)
|
|
1674 {
|
|
1675 if (enc_utf8)
|
|
1676 return utf_tolower(c);
|
|
1677 if (c >= 0x100)
|
|
1678 {
|
|
1679 #ifdef HAVE_TOWLOWER
|
|
1680 if (has_mbyte)
|
|
1681 return towlower(c);
|
|
1682 #endif
|
|
1683 /* tolower() can't handle these chars and may crash */
|
|
1684 return c;
|
|
1685 }
|
|
1686 if (enc_latin1like)
|
|
1687 return latin1lower[c];
|
|
1688 }
|
|
1689 return TOLOWER_LOC(c);
|
|
1690 }
|
|
1691 #endif
|
|
1692
|
7
|
1693 /*
|
|
1694 * skiptowhite: skip over text until ' ' or '\t' or NUL.
|
|
1695 */
|
|
1696 char_u *
|
|
1697 skiptowhite(p)
|
|
1698 char_u *p;
|
|
1699 {
|
|
1700 while (*p != ' ' && *p != '\t' && *p != NUL)
|
|
1701 ++p;
|
|
1702 return p;
|
|
1703 }
|
|
1704
|
|
1705 #if defined(FEAT_LISTCMDS) || defined(FEAT_SIGNS) || defined(FEAT_SNIFF) \
|
|
1706 || defined(PROTO)
|
|
1707 /*
|
|
1708 * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars
|
|
1709 */
|
|
1710 char_u *
|
|
1711 skiptowhite_esc(p)
|
|
1712 char_u *p;
|
|
1713 {
|
|
1714 while (*p != ' ' && *p != '\t' && *p != NUL)
|
|
1715 {
|
|
1716 if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL)
|
|
1717 ++p;
|
|
1718 ++p;
|
|
1719 }
|
|
1720 return p;
|
|
1721 }
|
|
1722 #endif
|
|
1723
|
|
1724 /*
|
|
1725 * Getdigits: Get a number from a string and skip over it.
|
|
1726 * Note: the argument is a pointer to a char_u pointer!
|
|
1727 */
|
|
1728 long
|
|
1729 getdigits(pp)
|
|
1730 char_u **pp;
|
|
1731 {
|
|
1732 char_u *p;
|
|
1733 long retval;
|
|
1734
|
|
1735 p = *pp;
|
|
1736 retval = atol((char *)p);
|
|
1737 if (*p == '-') /* skip negative sign */
|
|
1738 ++p;
|
|
1739 p = skipdigits(p); /* skip to next non-digit */
|
|
1740 *pp = p;
|
|
1741 return retval;
|
|
1742 }
|
|
1743
|
|
1744 /*
|
|
1745 * Return TRUE if "lbuf" is empty or only contains blanks.
|
|
1746 */
|
|
1747 int
|
|
1748 vim_isblankline(lbuf)
|
|
1749 char_u *lbuf;
|
|
1750 {
|
|
1751 char_u *p;
|
|
1752
|
|
1753 p = skipwhite(lbuf);
|
|
1754 return (*p == NUL || *p == '\r' || *p == '\n');
|
|
1755 }
|
|
1756
|
|
1757 /*
|
|
1758 * Convert a string into a long and/or unsigned long, taking care of
|
16
|
1759 * hexadecimal and octal numbers. Accepts a '-' sign.
|
7
|
1760 * If "hexp" is not NULL, returns a flag to indicate the type of the number:
|
|
1761 * 0 decimal
|
|
1762 * '0' octal
|
|
1763 * 'X' hex
|
|
1764 * 'x' hex
|
|
1765 * If "len" is not NULL, the length of the number in characters is returned.
|
|
1766 * If "nptr" is not NULL, the signed result is returned in it.
|
|
1767 * If "unptr" is not NULL, the unsigned result is returned in it.
|
293
|
1768 * If "dooct" is non-zero recognize octal numbers, when > 1 always assume
|
|
1769 * octal number.
|
782
|
1770 * If "dohex" is non-zero recognize hex numbers, when > 1 always assume
|
293
|
1771 * hex number.
|
7
|
1772 */
|
|
1773 void
|
|
1774 vim_str2nr(start, hexp, len, dooct, dohex, nptr, unptr)
|
|
1775 char_u *start;
|
|
1776 int *hexp; /* return: type of number 0 = decimal, 'x'
|
|
1777 or 'X' is hex, '0' = octal */
|
|
1778 int *len; /* return: detected length of number */
|
|
1779 int dooct; /* recognize octal number */
|
|
1780 int dohex; /* recognize hex number */
|
|
1781 long *nptr; /* return: signed result */
|
|
1782 unsigned long *unptr; /* return: unsigned result */
|
|
1783 {
|
|
1784 char_u *ptr = start;
|
|
1785 int hex = 0; /* default is decimal */
|
|
1786 int negative = FALSE;
|
|
1787 unsigned long un = 0;
|
39
|
1788 int n;
|
7
|
1789
|
|
1790 if (ptr[0] == '-')
|
|
1791 {
|
|
1792 negative = TRUE;
|
|
1793 ++ptr;
|
|
1794 }
|
|
1795
|
39
|
1796 /* Recognize hex and octal. */
|
|
1797 if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9')
|
7
|
1798 {
|
|
1799 hex = ptr[1];
|
|
1800 if (dohex && (hex == 'X' || hex == 'x') && vim_isxdigit(ptr[2]))
|
|
1801 ptr += 2; /* hexadecimal */
|
|
1802 else
|
|
1803 {
|
39
|
1804 hex = 0; /* default is decimal */
|
|
1805 if (dooct)
|
|
1806 {
|
|
1807 /* Don't interpret "0", "08" or "0129" as octal. */
|
|
1808 for (n = 1; VIM_ISDIGIT(ptr[n]); ++n)
|
|
1809 {
|
|
1810 if (ptr[n] > '7')
|
|
1811 {
|
|
1812 hex = 0; /* can't be octal */
|
|
1813 break;
|
|
1814 }
|
|
1815 if (ptr[n] > '0')
|
|
1816 hex = '0'; /* assume octal */
|
|
1817 }
|
|
1818 }
|
7
|
1819 }
|
|
1820 }
|
|
1821
|
|
1822 /*
|
|
1823 * Do the string-to-numeric conversion "manually" to avoid sscanf quirks.
|
|
1824 */
|
293
|
1825 if (hex == '0' || dooct > 1)
|
7
|
1826 {
|
293
|
1827 /* octal */
|
|
1828 while ('0' <= *ptr && *ptr <= '7')
|
7
|
1829 {
|
293
|
1830 un = 8 * un + (unsigned long)(*ptr - '0');
|
|
1831 ++ptr;
|
7
|
1832 }
|
293
|
1833 }
|
|
1834 else if (hex != 0 || dohex > 1)
|
|
1835 {
|
|
1836 /* hex */
|
|
1837 while (vim_isxdigit(*ptr))
|
7
|
1838 {
|
293
|
1839 un = 16 * un + (unsigned long)hex2nr(*ptr);
|
|
1840 ++ptr;
|
7
|
1841 }
|
|
1842 }
|
|
1843 else
|
|
1844 {
|
|
1845 /* decimal */
|
|
1846 while (VIM_ISDIGIT(*ptr))
|
|
1847 {
|
|
1848 un = 10 * un + (unsigned long)(*ptr - '0');
|
|
1849 ++ptr;
|
|
1850 }
|
|
1851 }
|
|
1852
|
|
1853 if (hexp != NULL)
|
|
1854 *hexp = hex;
|
|
1855 if (len != NULL)
|
|
1856 *len = (int)(ptr - start);
|
|
1857 if (nptr != NULL)
|
16
|
1858 {
|
|
1859 if (negative) /* account for leading '-' for decimal numbers */
|
|
1860 *nptr = -(long)un;
|
|
1861 else
|
|
1862 *nptr = (long)un;
|
|
1863 }
|
7
|
1864 if (unptr != NULL)
|
|
1865 *unptr = un;
|
|
1866 }
|
|
1867
|
|
1868 /*
|
|
1869 * Return the value of a single hex character.
|
|
1870 * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'.
|
|
1871 */
|
|
1872 int
|
|
1873 hex2nr(c)
|
|
1874 int c;
|
|
1875 {
|
|
1876 if (c >= 'a' && c <= 'f')
|
|
1877 return c - 'a' + 10;
|
|
1878 if (c >= 'A' && c <= 'F')
|
|
1879 return c - 'A' + 10;
|
|
1880 return c - '0';
|
|
1881 }
|
|
1882
|
|
1883 #if defined(FEAT_TERMRESPONSE) \
|
|
1884 || (defined(FEAT_GUI_GTK) && defined(FEAT_WINDOWS)) || defined(PROTO)
|
|
1885 /*
|
|
1886 * Convert two hex characters to a byte.
|
|
1887 * Return -1 if one of the characters is not hex.
|
|
1888 */
|
|
1889 int
|
|
1890 hexhex2nr(p)
|
|
1891 char_u *p;
|
|
1892 {
|
|
1893 if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1]))
|
|
1894 return -1;
|
|
1895 return (hex2nr(p[0]) << 4) + hex2nr(p[1]);
|
|
1896 }
|
|
1897 #endif
|
|
1898
|
|
1899 /*
|
|
1900 * Return TRUE if "str" starts with a backslash that should be removed.
|
|
1901 * For MS-DOS, WIN32 and OS/2 this is only done when the character after the
|
|
1902 * backslash is not a normal file name character.
|
|
1903 * '$' is a valid file name character, we don't remove the backslash before
|
|
1904 * it. This means it is not possible to use an environment variable after a
|
|
1905 * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works.
|
|
1906 * Although "\ name" is valid, the backslash in "Program\ files" must be
|
|
1907 * removed. Assume a file name doesn't start with a space.
|
|
1908 * For multi-byte names, never remove a backslash before a non-ascii
|
|
1909 * character, assume that all multi-byte characters are valid file name
|
|
1910 * characters.
|
|
1911 */
|
|
1912 int
|
|
1913 rem_backslash(str)
|
|
1914 char_u *str;
|
|
1915 {
|
|
1916 #ifdef BACKSLASH_IN_FILENAME
|
|
1917 return (str[0] == '\\'
|
|
1918 # ifdef FEAT_MBYTE
|
|
1919 && str[1] < 0x80
|
|
1920 # endif
|
|
1921 && (str[1] == ' '
|
|
1922 || (str[1] != NUL
|
|
1923 && str[1] != '*'
|
|
1924 && str[1] != '?'
|
|
1925 && !vim_isfilec(str[1]))));
|
|
1926 #else
|
|
1927 return (str[0] == '\\' && str[1] != NUL);
|
|
1928 #endif
|
|
1929 }
|
|
1930
|
|
1931 /*
|
|
1932 * Halve the number of backslashes in a file name argument.
|
|
1933 * For MS-DOS we only do this if the character after the backslash
|
|
1934 * is not a normal file character.
|
|
1935 */
|
|
1936 void
|
|
1937 backslash_halve(p)
|
|
1938 char_u *p;
|
|
1939 {
|
|
1940 for ( ; *p; ++p)
|
|
1941 if (rem_backslash(p))
|
1621
|
1942 STRMOVE(p, p + 1);
|
7
|
1943 }
|
|
1944
|
|
1945 /*
|
|
1946 * backslash_halve() plus save the result in allocated memory.
|
|
1947 */
|
|
1948 char_u *
|
|
1949 backslash_halve_save(p)
|
|
1950 char_u *p;
|
|
1951 {
|
|
1952 char_u *res;
|
|
1953
|
|
1954 res = vim_strsave(p);
|
|
1955 if (res == NULL)
|
|
1956 return p;
|
|
1957 backslash_halve(res);
|
|
1958 return res;
|
|
1959 }
|
|
1960
|
|
1961 #if (defined(EBCDIC) && defined(FEAT_POSTSCRIPT)) || defined(PROTO)
|
|
1962 /*
|
|
1963 * Table for EBCDIC to ASCII conversion unashamedly taken from xxd.c!
|
|
1964 * The first 64 entries have been added to map control characters defined in
|
|
1965 * ascii.h
|
|
1966 */
|
|
1967 static char_u ebcdic2ascii_tab[256] =
|
|
1968 {
|
|
1969 0000, 0001, 0002, 0003, 0004, 0011, 0006, 0177,
|
|
1970 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017,
|
|
1971 0020, 0021, 0022, 0023, 0024, 0012, 0010, 0027,
|
|
1972 0030, 0031, 0032, 0033, 0033, 0035, 0036, 0037,
|
|
1973 0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047,
|
|
1974 0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057,
|
|
1975 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,
|
|
1976 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077,
|
|
1977 0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246,
|
|
1978 0247, 0250, 0325, 0056, 0074, 0050, 0053, 0174,
|
|
1979 0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257,
|
|
1980 0260, 0261, 0041, 0044, 0052, 0051, 0073, 0176,
|
|
1981 0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267,
|
|
1982 0270, 0271, 0313, 0054, 0045, 0137, 0076, 0077,
|
|
1983 0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301,
|
|
1984 0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042,
|
|
1985 0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147,
|
|
1986 0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311,
|
|
1987 0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160,
|
|
1988 0161, 0162, 0136, 0314, 0315, 0316, 0317, 0320,
|
|
1989 0321, 0345, 0163, 0164, 0165, 0166, 0167, 0170,
|
|
1990 0171, 0172, 0322, 0323, 0324, 0133, 0326, 0327,
|
|
1991 0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337,
|
|
1992 0340, 0341, 0342, 0343, 0344, 0135, 0346, 0347,
|
|
1993 0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107,
|
|
1994 0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355,
|
|
1995 0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120,
|
|
1996 0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363,
|
|
1997 0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130,
|
|
1998 0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371,
|
|
1999 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067,
|
|
2000 0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377
|
|
2001 };
|
|
2002
|
|
2003 /*
|
|
2004 * Convert a buffer worth of characters from EBCDIC to ASCII. Only useful if
|
|
2005 * wanting 7-bit ASCII characters out the other end.
|
|
2006 */
|
|
2007 void
|
|
2008 ebcdic2ascii(buffer, len)
|
|
2009 char_u *buffer;
|
|
2010 int len;
|
|
2011 {
|
|
2012 int i;
|
|
2013
|
|
2014 for (i = 0; i < len; i++)
|
|
2015 buffer[i] = ebcdic2ascii_tab[buffer[i]];
|
|
2016 }
|
|
2017 #endif
|