Mercurial > vim
annotate src/charset.c @ 29597:f2d7f20d83c3 v9.0.0139
patch 9.0.0139: truncating virtual text after a line not implemented
Commit: https://github.com/vim/vim/commit/398649ee44edeb309c77361de697320378104b70
Author: Bram Moolenaar <Bram@vim.org>
Date: Thu Aug 4 15:03:48 2022 +0100
patch 9.0.0139: truncating virtual text after a line not implemented
Problem: Truncating virtual text after a line not implemented.
Cursor positioning wrong with Newline in the text.
Solution: Implement truncating. Disallow control characters in the text.
(closes #10842)
author | Bram Moolenaar <Bram@vim.org> |
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date | Thu, 04 Aug 2022 16:15:08 +0200 |
parents | 5233acfa06f1 |
children | 8f01d250793a |
rev | line source |
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
7 | 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 | |
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12 #if defined(HAVE_WCHAR_H) |
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13 # include <wchar.h> // for towupper() and towlower() |
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14 #endif |
7 | 15 |
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16 static int win_nolbr_chartabsize(chartabsize_T *cts, int *headp); |
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17 static unsigned nr2hex(unsigned c); |
7 | 18 |
19 static int chartab_initialized = FALSE; | |
20 | |
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21 // b_chartab[] is an array of 32 bytes, each bit representing one of the |
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22 // characters 0-255. |
7 | 23 #define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7)) |
24 #define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7)) | |
25 #define GET_CHARTAB(buf, c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7))) | |
26 | |
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27 // table used below, see init_chartab() for an explanation |
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28 static char_u g_chartab[256]; |
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29 |
7 | 30 /* |
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31 * Flags for g_chartab[]. |
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32 */ |
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33 #define CT_CELL_MASK 0x07 // mask: nr of display cells (1, 2 or 4) |
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34 #define CT_PRINT_CHAR 0x10 // flag: set for printable chars |
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35 #define CT_ID_CHAR 0x20 // flag: set for ID chars |
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36 #define CT_FNAME_CHAR 0x40 // flag: set for file name chars |
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37 |
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38 static int in_win_border(win_T *wp, colnr_T vcol); |
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39 |
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40 /* |
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41 * Fill g_chartab[]. Also fills curbuf->b_chartab[] with flags for keyword |
7 | 42 * characters for current buffer. |
43 * | |
44 * Depends on the option settings 'iskeyword', 'isident', 'isfname', | |
45 * 'isprint' and 'encoding'. | |
46 * | |
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47 * The index in g_chartab[] depends on 'encoding': |
7 | 48 * - For non-multi-byte index with the byte (same as the character). |
49 * - For DBCS index with the first byte. | |
50 * - For UTF-8 index with the character (when first byte is up to 0x80 it is | |
51 * the same as the character, if the first byte is 0x80 and above it depends | |
52 * on further bytes). | |
53 * | |
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54 * The contents of g_chartab[]: |
7 | 55 * - The lower two bits, masked by CT_CELL_MASK, give the number of display |
56 * cells the character occupies (1 or 2). Not valid for UTF-8 above 0x80. | |
57 * - CT_PRINT_CHAR bit is set when the character is printable (no need to | |
58 * translate the character before displaying it). Note that only DBCS | |
59 * characters can have 2 display cells and still be printable. | |
60 * - CT_FNAME_CHAR bit is set when the character can be in a file name. | |
61 * - CT_ID_CHAR bit is set when the character can be in an identifier. | |
62 * | |
63 * Return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has an | |
64 * error, OK otherwise. | |
65 */ | |
66 int | |
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67 init_chartab(void) |
7 | 68 { |
69 return buf_init_chartab(curbuf, TRUE); | |
70 } | |
71 | |
72 int | |
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73 buf_init_chartab( |
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74 buf_T *buf, |
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75 int global) // FALSE: only set buf->b_chartab[] |
7 | 76 { |
77 int c; | |
78 int c2; | |
79 char_u *p; | |
80 int i; | |
81 int tilde; | |
82 int do_isalpha; | |
83 | |
84 if (global) | |
85 { | |
86 /* | |
87 * Set the default size for printable characters: | |
88 * From <Space> to '~' is 1 (printable), others are 2 (not printable). | |
89 * This also inits all 'isident' and 'isfname' flags to FALSE. | |
90 */ | |
91 c = 0; | |
92 while (c < ' ') | |
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93 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
7 | 94 while (c <= '~') |
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95 g_chartab[c++] = 1 + CT_PRINT_CHAR; |
7 | 96 while (c < 256) |
97 { | |
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98 // UTF-8: bytes 0xa0 - 0xff are printable (latin1) |
7 | 99 if (enc_utf8 && c >= 0xa0) |
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100 g_chartab[c++] = CT_PRINT_CHAR + 1; |
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101 // euc-jp characters starting with 0x8e are single width |
7 | 102 else if (enc_dbcs == DBCS_JPNU && c == 0x8e) |
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103 g_chartab[c++] = CT_PRINT_CHAR + 1; |
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104 // other double-byte chars can be printable AND double-width |
7 | 105 else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2) |
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106 g_chartab[c++] = CT_PRINT_CHAR + 2; |
7 | 107 else |
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108 // the rest is unprintable by default |
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109 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
7 | 110 } |
111 | |
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112 // Assume that every multi-byte char is a filename character. |
7 | 113 for (c = 1; c < 256; ++c) |
114 if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1) | |
115 || (enc_dbcs == DBCS_JPNU && c == 0x8e) | |
116 || (enc_utf8 && c >= 0xa0)) | |
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117 g_chartab[c] |= CT_FNAME_CHAR; |
7 | 118 } |
119 | |
120 /* | |
121 * Init word char flags all to FALSE | |
122 */ | |
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123 CLEAR_FIELD(buf->b_chartab); |
227 | 124 if (enc_dbcs != 0) |
125 for (c = 0; c < 256; ++c) | |
126 { | |
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127 // double-byte characters are probably word characters |
227 | 128 if (MB_BYTE2LEN(c) == 2) |
129 SET_CHARTAB(buf, c); | |
130 } | |
7 | 131 |
132 /* | |
133 * In lisp mode the '-' character is included in keywords. | |
134 */ | |
135 if (buf->b_p_lisp) | |
136 SET_CHARTAB(buf, '-'); | |
137 | |
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138 // Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint' |
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139 // options Each option is a list of characters, character numbers or |
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140 // ranges, separated by commas, e.g.: "200-210,x,#-178,-" |
7 | 141 for (i = global ? 0 : 3; i <= 3; ++i) |
142 { | |
143 if (i == 0) | |
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144 p = p_isi; // first round: 'isident' |
7 | 145 else if (i == 1) |
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146 p = p_isp; // second round: 'isprint' |
7 | 147 else if (i == 2) |
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148 p = p_isf; // third round: 'isfname' |
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149 else // i == 3 |
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150 p = buf->b_p_isk; // fourth round: 'iskeyword' |
7 | 151 |
152 while (*p) | |
153 { | |
154 tilde = FALSE; | |
155 do_isalpha = FALSE; | |
156 if (*p == '^' && p[1] != NUL) | |
157 { | |
158 tilde = TRUE; | |
159 ++p; | |
160 } | |
161 if (VIM_ISDIGIT(*p)) | |
162 c = getdigits(&p); | |
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163 else if (has_mbyte) |
1955 | 164 c = mb_ptr2char_adv(&p); |
165 else | |
7 | 166 c = *p++; |
167 c2 = -1; | |
168 if (*p == '-' && p[1] != NUL) | |
169 { | |
170 ++p; | |
171 if (VIM_ISDIGIT(*p)) | |
172 c2 = getdigits(&p); | |
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173 else if (has_mbyte) |
1979 | 174 c2 = mb_ptr2char_adv(&p); |
175 else | |
7 | 176 c2 = *p++; |
177 } | |
1979 | 178 if (c <= 0 || c >= 256 || (c2 < c && c2 != -1) || c2 >= 256 |
7 | 179 || !(*p == NUL || *p == ',')) |
180 return FAIL; | |
181 | |
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182 if (c2 == -1) // not a range |
7 | 183 { |
184 /* | |
185 * A single '@' (not "@-@"): | |
186 * Decide on letters being ID/printable/keyword chars with | |
187 * standard function isalpha(). This takes care of locale for | |
188 * single-byte characters). | |
189 */ | |
190 if (c == '@') | |
191 { | |
192 do_isalpha = TRUE; | |
193 c = 1; | |
194 c2 = 255; | |
195 } | |
196 else | |
197 c2 = c; | |
198 } | |
199 while (c <= c2) | |
200 { | |
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201 // Use the MB_ functions here, because isalpha() doesn't |
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202 // work properly when 'encoding' is "latin1" and the locale is |
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203 // "C". |
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204 if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c)) |
7 | 205 { |
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206 if (i == 0) // (re)set ID flag |
7 | 207 { |
208 if (tilde) | |
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209 g_chartab[c] &= ~CT_ID_CHAR; |
7 | 210 else |
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211 g_chartab[c] |= CT_ID_CHAR; |
7 | 212 } |
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213 else if (i == 1) // (re)set printable |
7 | 214 { |
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215 if ((c < ' ' || c > '~' |
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216 // For double-byte we keep the cell width, so |
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217 // that we can detect it from the first byte. |
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218 ) && !(enc_dbcs && MB_BYTE2LEN(c) == 2)) |
7 | 219 { |
220 if (tilde) | |
221 { | |
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222 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) |
7 | 223 + ((dy_flags & DY_UHEX) ? 4 : 2); |
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224 g_chartab[c] &= ~CT_PRINT_CHAR; |
7 | 225 } |
226 else | |
227 { | |
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228 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) |
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229 + 1; |
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230 g_chartab[c] |= CT_PRINT_CHAR; |
7 | 231 } |
232 } | |
233 } | |
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234 else if (i == 2) // (re)set fname flag |
7 | 235 { |
236 if (tilde) | |
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237 g_chartab[c] &= ~CT_FNAME_CHAR; |
7 | 238 else |
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239 g_chartab[c] |= CT_FNAME_CHAR; |
7 | 240 } |
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241 else // i == 3 (re)set keyword flag |
7 | 242 { |
243 if (tilde) | |
244 RESET_CHARTAB(buf, c); | |
245 else | |
246 SET_CHARTAB(buf, c); | |
247 } | |
248 } | |
249 ++c; | |
250 } | |
4096 | 251 |
252 c = *p; | |
7 | 253 p = skip_to_option_part(p); |
4096 | 254 if (c == ',' && *p == NUL) |
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255 // Trailing comma is not allowed. |
4096 | 256 return FAIL; |
7 | 257 } |
258 } | |
259 chartab_initialized = TRUE; | |
260 return OK; | |
261 } | |
262 | |
263 /* | |
264 * Translate any special characters in buf[bufsize] in-place. | |
265 * The result is a string with only printable characters, but if there is not | |
266 * enough room, not all characters will be translated. | |
267 */ | |
268 void | |
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269 trans_characters( |
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270 char_u *buf, |
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271 int bufsize) |
7 | 272 { |
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273 int len; // length of string needing translation |
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274 int room; // room in buffer after string |
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275 char_u *trs; // translated character |
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276 int trs_len; // length of trs[] |
7 | 277 |
278 len = (int)STRLEN(buf); | |
279 room = bufsize - len; | |
280 while (*buf != 0) | |
281 { | |
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282 // Assume a multi-byte character doesn't need translation. |
474 | 283 if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1) |
7 | 284 len -= trs_len; |
285 else | |
286 { | |
287 trs = transchar_byte(*buf); | |
288 trs_len = (int)STRLEN(trs); | |
289 if (trs_len > 1) | |
290 { | |
291 room -= trs_len - 1; | |
292 if (room <= 0) | |
293 return; | |
294 mch_memmove(buf + trs_len, buf + 1, (size_t)len); | |
295 } | |
296 mch_memmove(buf, trs, (size_t)trs_len); | |
297 --len; | |
298 } | |
299 buf += trs_len; | |
300 } | |
301 } | |
302 | |
303 /* | |
304 * Translate a string into allocated memory, replacing special chars with | |
305 * printable chars. Returns NULL when out of memory. | |
306 */ | |
307 char_u * | |
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308 transstr(char_u *s) |
7 | 309 { |
310 char_u *res; | |
311 char_u *p; | |
312 int l, len, c; | |
313 char_u hexbuf[11]; | |
314 | |
315 if (has_mbyte) | |
316 { | |
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317 // Compute the length of the result, taking account of unprintable |
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318 // multi-byte characters. |
7 | 319 len = 0; |
320 p = s; | |
321 while (*p != NUL) | |
322 { | |
474 | 323 if ((l = (*mb_ptr2len)(p)) > 1) |
7 | 324 { |
325 c = (*mb_ptr2char)(p); | |
326 p += l; | |
327 if (vim_isprintc(c)) | |
328 len += l; | |
329 else | |
330 { | |
331 transchar_hex(hexbuf, c); | |
835 | 332 len += (int)STRLEN(hexbuf); |
7 | 333 } |
334 } | |
335 else | |
336 { | |
337 l = byte2cells(*p++); | |
338 if (l > 0) | |
339 len += l; | |
340 else | |
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341 len += 4; // illegal byte sequence |
7 | 342 } |
343 } | |
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344 res = alloc(len + 1); |
7 | 345 } |
346 else | |
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347 res = alloc(vim_strsize(s) + 1); |
7 | 348 if (res != NULL) |
349 { | |
350 *res = NUL; | |
351 p = s; | |
352 while (*p != NUL) | |
353 { | |
474 | 354 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
7 | 355 { |
356 c = (*mb_ptr2char)(p); | |
357 if (vim_isprintc(c)) | |
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358 STRNCAT(res, p, l); // append printable multi-byte char |
7 | 359 else |
360 transchar_hex(res + STRLEN(res), c); | |
361 p += l; | |
362 } | |
363 else | |
364 STRCAT(res, transchar_byte(*p++)); | |
365 } | |
366 } | |
367 return res; | |
368 } | |
369 | |
370 /* | |
221 | 371 * Convert the string "str[orglen]" to do ignore-case comparing. Uses the |
372 * current locale. | |
130 | 373 * When "buf" is NULL returns an allocated string (NULL for out-of-memory). |
374 * Otherwise puts the result in "buf[buflen]". | |
7 | 375 */ |
376 char_u * | |
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377 str_foldcase( |
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378 char_u *str, |
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379 int orglen, |
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380 char_u *buf, |
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381 int buflen) |
7 | 382 { |
383 garray_T ga; | |
384 int i; | |
130 | 385 int len = orglen; |
7 | 386 |
387 #define GA_CHAR(i) ((char_u *)ga.ga_data)[i] | |
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388 #define GA_PTR(i) ((char_u *)ga.ga_data + (i)) |
130 | 389 #define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i]) |
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390 #define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + (i)) |
7 | 391 |
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392 // Copy "str" into "buf" or allocated memory, unmodified. |
130 | 393 if (buf == NULL) |
394 { | |
395 ga_init2(&ga, 1, 10); | |
396 if (ga_grow(&ga, len + 1) == FAIL) | |
397 return NULL; | |
398 mch_memmove(ga.ga_data, str, (size_t)len); | |
399 ga.ga_len = len; | |
400 } | |
401 else | |
402 { | |
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403 if (len >= buflen) // Ugly! |
130 | 404 len = buflen - 1; |
405 mch_memmove(buf, str, (size_t)len); | |
406 } | |
407 if (buf == NULL) | |
408 GA_CHAR(len) = NUL; | |
409 else | |
410 buf[len] = NUL; | |
7 | 411 |
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412 // Make each character lower case. |
7 | 413 i = 0; |
130 | 414 while (STR_CHAR(i) != NUL) |
7 | 415 { |
130 | 416 if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1)) |
7 | 417 { |
418 if (enc_utf8) | |
419 { | |
1654 | 420 int c = utf_ptr2char(STR_PTR(i)); |
3263 | 421 int olen = utf_ptr2len(STR_PTR(i)); |
1654 | 422 int lc = utf_tolower(c); |
7 | 423 |
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424 // Only replace the character when it is not an invalid |
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425 // sequence (ASCII character or more than one byte) and |
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426 // utf_tolower() doesn't return the original character. |
3263 | 427 if ((c < 0x80 || olen > 1) && c != lc) |
7 | 428 { |
3263 | 429 int nlen = utf_char2len(lc); |
7 | 430 |
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431 // If the byte length changes need to shift the following |
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432 // characters forward or backward. |
3263 | 433 if (olen != nlen) |
7 | 434 { |
3263 | 435 if (nlen > olen) |
130 | 436 { |
3263 | 437 if (buf == NULL |
438 ? ga_grow(&ga, nlen - olen + 1) == FAIL | |
439 : len + nlen - olen >= buflen) | |
7 | 440 { |
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441 // out of memory, keep old char |
7 | 442 lc = c; |
3263 | 443 nlen = olen; |
7 | 444 } |
130 | 445 } |
3263 | 446 if (olen != nlen) |
7 | 447 { |
130 | 448 if (buf == NULL) |
449 { | |
3263 | 450 STRMOVE(GA_PTR(i) + nlen, GA_PTR(i) + olen); |
451 ga.ga_len += nlen - olen; | |
130 | 452 } |
453 else | |
454 { | |
3263 | 455 STRMOVE(buf + i + nlen, buf + i + olen); |
456 len += nlen - olen; | |
130 | 457 } |
7 | 458 } |
459 } | |
130 | 460 (void)utf_char2bytes(lc, STR_PTR(i)); |
7 | 461 } |
462 } | |
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463 // skip to next multi-byte char |
474 | 464 i += (*mb_ptr2len)(STR_PTR(i)); |
7 | 465 } |
466 else | |
467 { | |
130 | 468 if (buf == NULL) |
469 GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i)); | |
470 else | |
471 buf[i] = TOLOWER_LOC(buf[i]); | |
7 | 472 ++i; |
473 } | |
474 } | |
475 | |
130 | 476 if (buf == NULL) |
477 return (char_u *)ga.ga_data; | |
478 return buf; | |
7 | 479 } |
480 | |
481 /* | |
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482 * Catch 22: g_chartab[] can't be initialized before the options are |
7 | 483 * initialized, and initializing options may cause transchar() to be called! |
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484 * When chartab_initialized == FALSE don't use g_chartab[]. |
7 | 485 * Does NOT work for multi-byte characters, c must be <= 255. |
486 * Also doesn't work for the first byte of a multi-byte, "c" must be a | |
487 * character! | |
488 */ | |
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489 static char_u transchar_charbuf[7]; |
7 | 490 |
491 char_u * | |
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492 transchar(int c) |
7 | 493 { |
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494 return transchar_buf(curbuf, c); |
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495 } |
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496 |
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497 char_u * |
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498 transchar_buf(buf_T *buf, int c) |
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499 { |
7 | 500 int i; |
501 | |
502 i = 0; | |
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503 if (IS_SPECIAL(c)) // special key code, display as ~@ char |
7 | 504 { |
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505 transchar_charbuf[0] = '~'; |
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506 transchar_charbuf[1] = '@'; |
7 | 507 i = 2; |
508 c = K_SECOND(c); | |
509 } | |
510 | |
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511 if ((!chartab_initialized && ((c >= ' ' && c <= '~'))) |
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512 || (c < 256 && vim_isprintc_strict(c))) |
7 | 513 { |
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514 // printable character |
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515 transchar_charbuf[i] = c; |
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516 transchar_charbuf[i + 1] = NUL; |
7 | 517 } |
518 else | |
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519 transchar_nonprint(buf, transchar_charbuf + i, c); |
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520 return transchar_charbuf; |
7 | 521 } |
522 | |
523 /* | |
524 * Like transchar(), but called with a byte instead of a character. Checks | |
525 * for an illegal UTF-8 byte. | |
526 */ | |
527 char_u * | |
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528 transchar_byte(int c) |
7 | 529 { |
530 if (enc_utf8 && c >= 0x80) | |
531 { | |
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532 transchar_nonprint(curbuf, transchar_charbuf, c); |
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533 return transchar_charbuf; |
7 | 534 } |
535 return transchar(c); | |
536 } | |
537 | |
538 /* | |
539 * Convert non-printable character to two or more printable characters in | |
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540 * "buf[]". "charbuf" needs to be able to hold five bytes. |
7 | 541 * Does NOT work for multi-byte characters, c must be <= 255. |
542 */ | |
543 void | |
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544 transchar_nonprint(buf_T *buf, char_u *charbuf, int c) |
7 | 545 { |
546 if (c == NL) | |
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547 c = NUL; // we use newline in place of a NUL |
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548 else if (c == CAR && get_fileformat(buf) == EOL_MAC) |
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549 c = NL; // we use CR in place of NL in this case |
7 | 550 |
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551 if (dy_flags & DY_UHEX) // 'display' has "uhex" |
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552 transchar_hex(charbuf, c); |
7 | 553 |
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554 else if (c <= 0x7f) // 0x00 - 0x1f and 0x7f |
7 | 555 { |
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556 charbuf[0] = '^'; |
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557 charbuf[1] = c ^ 0x40; // DEL displayed as ^? |
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558 charbuf[2] = NUL; |
7 | 559 } |
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560 else if (enc_utf8) |
7 | 561 { |
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562 transchar_hex(charbuf, c); |
7 | 563 } |
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564 else if (c >= ' ' + 0x80 && c <= '~' + 0x80) // 0xa0 - 0xfe |
7 | 565 { |
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566 charbuf[0] = '|'; |
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567 charbuf[1] = c - 0x80; |
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568 charbuf[2] = NUL; |
7 | 569 } |
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570 else // 0x80 - 0x9f and 0xff |
7 | 571 { |
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572 charbuf[0] = '~'; |
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573 charbuf[1] = (c - 0x80) ^ 0x40; // 0xff displayed as ~? |
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574 charbuf[2] = NUL; |
7 | 575 } |
576 } | |
577 | |
578 void | |
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579 transchar_hex(char_u *buf, int c) |
7 | 580 { |
581 int i = 0; | |
582 | |
583 buf[0] = '<'; | |
584 if (c > 255) | |
585 { | |
586 buf[++i] = nr2hex((unsigned)c >> 12); | |
587 buf[++i] = nr2hex((unsigned)c >> 8); | |
588 } | |
589 buf[++i] = nr2hex((unsigned)c >> 4); | |
1869 | 590 buf[++i] = nr2hex((unsigned)c); |
7 | 591 buf[++i] = '>'; |
592 buf[++i] = NUL; | |
593 } | |
594 | |
595 /* | |
596 * Convert the lower 4 bits of byte "c" to its hex character. | |
597 * Lower case letters are used to avoid the confusion of <F1> being 0xf1 or | |
598 * function key 1. | |
599 */ | |
1869 | 600 static unsigned |
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601 nr2hex(unsigned c) |
7 | 602 { |
603 if ((c & 0xf) <= 9) | |
604 return (c & 0xf) + '0'; | |
605 return (c & 0xf) - 10 + 'a'; | |
606 } | |
607 | |
608 /* | |
609 * Return number of display cells occupied by byte "b". | |
610 * Caller must make sure 0 <= b <= 255. | |
611 * For multi-byte mode "b" must be the first byte of a character. | |
612 * A TAB is counted as two cells: "^I". | |
613 * For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of | |
614 * cells depends on further bytes. | |
615 */ | |
616 int | |
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617 byte2cells(int b) |
7 | 618 { |
619 if (enc_utf8 && b >= 0x80) | |
620 return 0; | |
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621 return (g_chartab[b] & CT_CELL_MASK); |
7 | 622 } |
623 | |
624 /* | |
625 * Return number of display cells occupied by character "c". | |
626 * "c" can be a special key (negative number) in which case 3 or 4 is returned. | |
627 * A TAB is counted as two cells: "^I" or four: "<09>". | |
628 */ | |
629 int | |
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630 char2cells(int c) |
7 | 631 { |
632 if (IS_SPECIAL(c)) | |
633 return char2cells(K_SECOND(c)) + 2; | |
634 if (c >= 0x80) | |
635 { | |
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636 // UTF-8: above 0x80 need to check the value |
7 | 637 if (enc_utf8) |
638 return utf_char2cells(c); | |
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639 // DBCS: double-byte means double-width, except for euc-jp with first |
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640 // byte 0x8e |
7 | 641 if (enc_dbcs != 0 && c >= 0x100) |
642 { | |
643 if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e) | |
644 return 1; | |
645 return 2; | |
646 } | |
647 } | |
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648 return (g_chartab[c & 0xff] & CT_CELL_MASK); |
7 | 649 } |
650 | |
651 /* | |
652 * Return number of display cells occupied by character at "*p". | |
653 * A TAB is counted as two cells: "^I" or four: "<09>". | |
654 */ | |
655 int | |
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656 ptr2cells(char_u *p) |
7 | 657 { |
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658 if (!has_mbyte) |
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659 return byte2cells(*p); |
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660 |
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661 // For UTF-8 we need to look at more bytes if the first byte is >= 0x80. |
7 | 662 if (enc_utf8 && *p >= 0x80) |
663 return utf_ptr2cells(p); | |
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664 // For DBCS we can tell the cell count from the first byte. |
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665 return (g_chartab[*p] & CT_CELL_MASK); |
7 | 666 } |
667 | |
668 /* | |
3292 | 669 * Return the number of character cells string "s" will take on the screen, |
7 | 670 * counting TABs as two characters: "^I". |
671 */ | |
672 int | |
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673 vim_strsize(char_u *s) |
7 | 674 { |
675 return vim_strnsize(s, (int)MAXCOL); | |
676 } | |
677 | |
678 /* | |
3292 | 679 * Return the number of character cells string "s[len]" will take on the |
680 * screen, counting TABs as two characters: "^I". | |
7 | 681 */ |
682 int | |
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683 vim_strnsize(char_u *s, int len) |
7 | 684 { |
685 int size = 0; | |
686 | |
687 while (*s != NUL && --len >= 0) | |
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688 { |
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689 int l = (*mb_ptr2len)(s); |
7 | 690 |
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691 size += ptr2cells(s); |
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692 s += l; |
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693 len -= l - 1; |
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694 } |
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695 |
7 | 696 return size; |
697 } | |
698 | |
699 /* | |
700 * Return the number of characters 'c' will take on the screen, taking | |
701 * into account the size of a tab. | |
702 * Use a define to make it fast, this is used very often!!! | |
703 * Also see getvcol() below. | |
704 */ | |
705 | |
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706 #ifdef FEAT_VARTABS |
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707 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
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708 if (*(p) == TAB && (!(wp)->w_p_list || (wp)->w_lcs_chars.tab1)) \ |
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709 { \ |
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710 return tabstop_padding(col, (buf)->b_p_ts, (buf)->b_p_vts_array); \ |
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711 } \ |
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712 else \ |
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713 return ptr2cells(p); |
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714 #else |
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715 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
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716 if (*(p) == TAB && (!(wp)->w_p_list || wp->w_lcs_chars.tab1)) \ |
7 | 717 { \ |
718 int ts; \ | |
719 ts = (buf)->b_p_ts; \ | |
720 return (int)(ts - (col % ts)); \ | |
721 } \ | |
722 else \ | |
723 return ptr2cells(p); | |
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724 #endif |
7 | 725 |
726 int | |
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727 chartabsize(char_u *p, colnr_T col) |
7 | 728 { |
729 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col) | |
730 } | |
731 | |
732 #ifdef FEAT_LINEBREAK | |
733 static int | |
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734 win_chartabsize(win_T *wp, char_u *p, colnr_T col) |
7 | 735 { |
736 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col) | |
737 } | |
738 #endif | |
739 | |
740 /* | |
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741 * Return the number of characters the string "s" will take on the screen, |
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742 * taking into account the size of a tab. |
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743 * Does not handle text properties, since "s" is not a buffer line. |
7 | 744 */ |
745 int | |
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746 linetabsize(char_u *s) |
7 | 747 { |
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748 return linetabsize_col(0, s); |
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749 } |
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750 |
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751 /* |
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752 * Like linetabsize(), but "s" starts at column "startcol". |
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753 */ |
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754 int |
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755 linetabsize_col(int startcol, char_u *s) |
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756 { |
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757 chartabsize_T cts; |
7 | 758 |
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759 init_chartabsize_arg(&cts, curwin, 0, startcol, s, s); |
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760 while (*cts.cts_ptr != NUL) |
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761 cts.cts_vcol += lbr_chartabsize_adv(&cts); |
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762 clear_chartabsize_arg(&cts); |
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763 return (int)cts.cts_vcol; |
7 | 764 } |
765 | |
766 /* | |
767 * Like linetabsize(), but for a given window instead of the current one. | |
768 */ | |
769 int | |
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770 win_linetabsize(win_T *wp, linenr_T lnum, char_u *line, colnr_T len) |
7 | 771 { |
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772 chartabsize_T cts; |
7 | 773 |
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774 init_chartabsize_arg(&cts, wp, lnum, 0, line, line); |
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775 #ifdef FEAT_PROP_POPUP |
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776 cts.cts_with_trailing = len == MAXCOL; |
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777 #endif |
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778 for ( ; *cts.cts_ptr != NUL && (len == MAXCOL || cts.cts_ptr < line + len); |
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779 MB_PTR_ADV(cts.cts_ptr)) |
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780 cts.cts_vcol += win_lbr_chartabsize(&cts, NULL); |
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781 clear_chartabsize_arg(&cts); |
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782 return (int)cts.cts_vcol; |
7 | 783 } |
784 | |
785 /* | |
42 | 786 * Return TRUE if 'c' is a normal identifier character: |
787 * Letters and characters from the 'isident' option. | |
7 | 788 */ |
789 int | |
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790 vim_isIDc(int c) |
7 | 791 { |
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792 return (c > 0 && c < 0x100 && (g_chartab[c] & CT_ID_CHAR)); |
7 | 793 } |
794 | |
795 /* | |
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796 * Like vim_isIDc() but not using the 'isident' option: letters, numbers and |
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797 * underscore. |
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798 */ |
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799 int |
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800 vim_isNormalIDc(int c) |
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801 { |
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802 return ASCII_ISALNUM(c) || c == '_'; |
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803 } |
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804 |
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805 /* |
7 | 806 * return TRUE if 'c' is a keyword character: Letters and characters from |
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807 * 'iskeyword' option for the current buffer. |
7 | 808 * For multi-byte characters mb_get_class() is used (builtin rules). |
809 */ | |
810 int | |
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811 vim_iswordc(int c) |
7 | 812 { |
4043 | 813 return vim_iswordc_buf(c, curbuf); |
814 } | |
815 | |
816 int | |
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817 vim_iswordc_buf(int c, buf_T *buf) |
4043 | 818 { |
7 | 819 if (c >= 0x100) |
820 { | |
821 if (enc_dbcs != 0) | |
1869 | 822 return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2; |
7 | 823 if (enc_utf8) |
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824 return utf_class_buf(c, buf) >= 2; |
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825 return FALSE; |
7 | 826 } |
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827 return (c > 0 && GET_CHARTAB(buf, c) != 0); |
7 | 828 } |
829 | |
830 /* | |
831 * Just like vim_iswordc() but uses a pointer to the (multi-byte) character. | |
832 */ | |
833 int | |
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834 vim_iswordp(char_u *p) |
7 | 835 { |
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836 return vim_iswordp_buf(p, curbuf); |
7 | 837 } |
838 | |
839 int | |
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840 vim_iswordp_buf(char_u *p, buf_T *buf) |
7 | 841 { |
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842 int c = *p; |
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843 |
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844 if (has_mbyte && MB_BYTE2LEN(c) > 1) |
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845 c = (*mb_ptr2char)(p); |
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846 return vim_iswordc_buf(c, buf); |
7 | 847 } |
848 | |
849 /* | |
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850 * Return TRUE if 'c' is a valid file-name character as specified with the |
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851 * 'isfname' option. |
7 | 852 * Assume characters above 0x100 are valid (multi-byte). |
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853 * To be used for commands like "gf". |
7 | 854 */ |
855 int | |
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856 vim_isfilec(int c) |
7 | 857 { |
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858 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_FNAME_CHAR))); |
7 | 859 } |
860 | |
861 /* | |
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862 * Return TRUE if 'c' is a valid file-name character, including characters left |
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863 * out of 'isfname' to make "gf" work, such as comma, space, '@', etc. |
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864 */ |
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865 int |
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866 vim_is_fname_char(int c) |
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867 { |
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868 return vim_isfilec(c) || c == ',' || c == ' ' || c == '@'; |
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869 } |
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870 |
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871 /* |
1369 | 872 * return TRUE if 'c' is a valid file-name character or a wildcard character |
873 * Assume characters above 0x100 are valid (multi-byte). | |
874 * Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]") | |
875 * returns false. | |
876 */ | |
877 int | |
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878 vim_isfilec_or_wc(int c) |
1369 | 879 { |
880 char_u buf[2]; | |
881 | |
882 buf[0] = (char_u)c; | |
883 buf[1] = NUL; | |
884 return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf); | |
885 } | |
886 | |
887 /* | |
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888 * Return TRUE if 'c' is a printable character. |
7 | 889 * Assume characters above 0x100 are printable (multi-byte), except for |
890 * Unicode. | |
891 */ | |
892 int | |
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893 vim_isprintc(int c) |
7 | 894 { |
895 if (enc_utf8 && c >= 0x100) | |
896 return utf_printable(c); | |
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897 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
7 | 898 } |
899 | |
900 /* | |
901 * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head | |
902 * byte of a double-byte character. | |
903 */ | |
904 int | |
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905 vim_isprintc_strict(int c) |
7 | 906 { |
907 if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1) | |
908 return FALSE; | |
909 if (enc_utf8 && c >= 0x100) | |
910 return utf_printable(c); | |
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911 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
7 | 912 } |
913 | |
914 /* | |
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915 * Prepare the structure passed to chartabsize functions. |
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916 * "line" is the start of the line, "ptr" is the first relevant character. |
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917 * When "lnum" is zero do not use text properties that insert text. |
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918 */ |
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919 void |
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920 init_chartabsize_arg( |
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921 chartabsize_T *cts, |
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922 win_T *wp, |
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923 linenr_T lnum, |
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924 colnr_T col, |
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925 char_u *line, |
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926 char_u *ptr) |
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927 { |
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928 CLEAR_POINTER(cts); |
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929 cts->cts_win = wp; |
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930 cts->cts_lnum = lnum; |
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931 cts->cts_vcol = col; |
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932 cts->cts_line = line; |
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933 cts->cts_ptr = ptr; |
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934 #ifdef FEAT_PROP_POPUP |
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935 if (lnum > 0) |
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936 { |
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937 char_u *prop_start; |
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938 |
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939 cts->cts_text_prop_count = get_text_props(wp->w_buffer, lnum, |
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940 &prop_start, FALSE); |
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941 if (cts->cts_text_prop_count > 0) |
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942 { |
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943 // Make a copy of the properties, so that they are properly |
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944 // aligned. |
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945 cts->cts_text_props = ALLOC_MULT(textprop_T, |
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946 cts->cts_text_prop_count); |
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947 if (cts->cts_text_props == NULL) |
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948 cts->cts_text_prop_count = 0; |
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949 else |
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950 { |
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951 int i; |
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952 |
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953 mch_memmove(cts->cts_text_props, prop_start, |
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954 cts->cts_text_prop_count * sizeof(textprop_T)); |
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955 for (i = 0; i < cts->cts_text_prop_count; ++i) |
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956 if (cts->cts_text_props[i].tp_id < 0) |
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957 { |
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958 cts->cts_has_prop_with_text = TRUE; |
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959 break; |
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960 } |
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961 if (!cts->cts_has_prop_with_text) |
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962 { |
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963 // won't use the text properties, free them |
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964 VIM_CLEAR(cts->cts_text_props); |
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965 cts->cts_text_prop_count = 0; |
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966 } |
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967 } |
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968 } |
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969 } |
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970 #endif |
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971 } |
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972 |
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973 /* |
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974 * Free any allocated item in "cts". |
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975 */ |
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976 void |
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977 clear_chartabsize_arg(chartabsize_T *cts UNUSED) |
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978 { |
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979 #ifdef FEAT_PROP_POPUP |
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980 if (cts->cts_text_prop_count > 0) |
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981 { |
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982 VIM_CLEAR(cts->cts_text_props); |
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983 cts->cts_text_prop_count = 0; |
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984 } |
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985 #endif |
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986 } |
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987 |
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988 /* |
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989 * Like chartabsize(), but also check for line breaks on the screen and text |
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990 * properties that insert text. |
7 | 991 */ |
992 int | |
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993 lbr_chartabsize(chartabsize_T *cts) |
7 | 994 { |
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995 #if defined(FEAT_LINEBREAK) || defined(FEAT_PROP_POPUP) |
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996 if (1 |
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997 # ifdef FEAT_LINEBREAK |
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998 && !curwin->w_p_lbr && *get_showbreak_value(curwin) == NUL |
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999 && !curwin->w_p_bri |
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1000 # endif |
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1001 # ifdef FEAT_PROP_POPUP |
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1002 && !cts->cts_has_prop_with_text |
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1003 #endif |
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1004 ) |
7 | 1005 { |
1006 #endif | |
1007 if (curwin->w_p_wrap) | |
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1008 return win_nolbr_chartabsize(cts, NULL); |
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1009 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, cts->cts_ptr, cts->cts_vcol) |
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1010 #if defined(FEAT_LINEBREAK) || defined(FEAT_PROP_POPUP) |
7 | 1011 } |
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1012 return win_lbr_chartabsize(cts, NULL); |
7 | 1013 #endif |
1014 } | |
1015 | |
1016 /* | |
1017 * Call lbr_chartabsize() and advance the pointer. | |
1018 */ | |
1019 int | |
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1020 lbr_chartabsize_adv(chartabsize_T *cts) |
7 | 1021 { |
1022 int retval; | |
1023 | |
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1024 retval = lbr_chartabsize(cts); |
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1025 MB_PTR_ADV(cts->cts_ptr); |
7 | 1026 return retval; |
1027 } | |
1028 | |
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1029 #if defined(FEAT_PROP_POPUP) || defined(PROTO) |
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1030 /* |
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1031 * Return the cell size of virtual text after truncation. |
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1032 */ |
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1033 int |
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1034 textprop_size_after_trunc( |
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1035 win_T *wp, |
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1036 int below, |
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1037 int added, |
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1038 char_u *text, |
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1039 int *n_used_ptr) |
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1040 { |
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1041 int space = below ? wp->w_width : added; |
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1042 int len = (int)STRLEN(text); |
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1043 int strsize = 0; |
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1044 int n_used; |
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1045 |
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1046 // if the remaining size is to small wrap |
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1047 // anyway and use the next line |
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1048 if (space < PROP_TEXT_MIN_CELLS) |
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1049 space += wp->w_width; |
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1050 for (n_used = 0; n_used < len; n_used += (*mb_ptr2len)(text + n_used)) |
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1051 { |
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1052 int clen = ptr2cells(text + n_used); |
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1053 |
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1054 if (strsize + clen > space) |
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1055 break; |
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1056 strsize += clen; |
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1057 } |
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1058 *n_used_ptr = n_used; |
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1059 return strsize; |
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1060 } |
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1061 #endif |
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1062 |
7 | 1063 /* |
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1064 * Return the screen size of the character indicated by "cts". |
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1065 * "cts->cts_cur_text_width" is set to the extra size for a text property that |
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1066 * inserts text. |
7 | 1067 * This function is used very often, keep it fast!!!! |
1068 * | |
1069 * If "headp" not NULL, set *headp to the size of what we for 'showbreak' | |
1070 * string at start of line. Warning: *headp is only set if it's a non-zero | |
1071 * value, init to 0 before calling. | |
1072 */ | |
1073 int | |
7817
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1074 win_lbr_chartabsize( |
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1075 chartabsize_T *cts, |
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1076 int *headp UNUSED) |
7 | 1077 { |
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1078 win_T *wp = cts->cts_win; |
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1079 #ifdef FEAT_PROP_POPUP |
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1080 char_u *line = cts->cts_line; // start of the line |
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1081 #endif |
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1082 char_u *s = cts->cts_ptr; |
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1083 colnr_T vcol = cts->cts_vcol; |
7 | 1084 #ifdef FEAT_LINEBREAK |
1085 int c; | |
1086 int size; | |
1087 colnr_T col2; | |
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1088 colnr_T col_adj = 0; // vcol + screen size of tab |
7 | 1089 colnr_T colmax; |
1090 int added; | |
1091 int mb_added = 0; | |
1092 int numberextra; | |
1093 char_u *ps; | |
1094 int tab_corr = (*s == TAB); | |
236 | 1095 int n; |
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1096 char_u *sbr; |
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1097 #endif |
7 | 1098 |
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1099 #if defined(FEAT_PROP_POPUP) |
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1100 cts->cts_cur_text_width = 0; |
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1101 #endif |
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1102 |
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1103 #if defined(FEAT_LINEBREAK) || defined(FEAT_PROP_POPUP) |
7 | 1104 /* |
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1105 * No 'linebreak', 'showbreak', 'breakindent' and text properties that |
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1106 * insert text: return quickly. |
7 | 1107 */ |
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1108 if (1 |
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1109 # ifdef FEAT_LINEBREAK |
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1110 && !wp->w_p_lbr && !wp->w_p_bri && *get_showbreak_value(wp) == NUL |
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1111 # endif |
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1112 # ifdef FEAT_PROP_POPUP |
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1113 && !cts->cts_has_prop_with_text |
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1114 # endif |
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|
1115 ) |
7 | 1116 #endif |
1117 { | |
1118 if (wp->w_p_wrap) | |
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1119 return win_nolbr_chartabsize(cts, headp); |
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1120 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, vcol) |
7 | 1121 } |
1122 | |
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1123 #if defined(FEAT_LINEBREAK) || defined(FEAT_PROP_POPUP) |
7 | 1124 /* |
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1125 * First get the normal size, without 'linebreak' or text properties |
7 | 1126 */ |
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1127 size = win_chartabsize(wp, s, vcol); |
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1128 |
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1129 # ifdef FEAT_PROP_POPUP |
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1130 if (cts->cts_has_prop_with_text) |
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1131 { |
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1132 int i; |
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1133 int col = (int)(s - line); |
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1134 |
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1135 for (i = 0; i < cts->cts_text_prop_count; ++i) |
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1136 { |
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1137 textprop_T *tp = cts->cts_text_props + i; |
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1138 |
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|
1139 if (tp->tp_id < 0 |
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|
1140 && ((tp->tp_col - 1 >= col && tp->tp_col - 1 < col + size |
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1141 && -tp->tp_id <= wp->w_buffer->b_textprop_text.ga_len) |
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1142 || (tp->tp_col == MAXCOL && (s[0] == NUL || s[1] == NUL) |
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1143 && cts->cts_with_trailing))) |
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1144 { |
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1145 char_u *p = ((char_u **)wp->w_buffer->b_textprop_text.ga_data)[ |
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|
1146 -tp->tp_id - 1]; |
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1147 int cells = vim_strsize(p); |
29560
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1148 |
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|
1149 added = wp->w_width - (vcol + size) % wp->w_width; |
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1150 if (tp->tp_col == MAXCOL) |
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1151 { |
29597
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|
1152 int below = (tp->tp_flags & TP_FLAG_ALIGN_BELOW); |
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|
1153 int wrap = (tp->tp_flags & TP_FLAG_WRAP); |
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|
1154 int len = (int)STRLEN(p); |
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|
1155 int n_used = len; |
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|
1156 |
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|
1157 // Keep in sync with where textprop_size_after_trunc() is |
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|
1158 // called in win_line(). |
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|
1159 if (!wrap) |
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|
1160 cells = textprop_size_after_trunc(wp, |
f2d7f20d83c3
patch 9.0.0139: truncating virtual text after a line not implemented
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|
1161 below, added, p, &n_used); |
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|
1162 // right-aligned does not really matter here, same as |
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|
1163 // "after" |
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|
1164 if (below) |
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|
1165 cells += wp->w_width - (vcol + size) % wp->w_width; |
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|
1166 } |
29597
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|
1167 cts->cts_cur_text_width += cells; |
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|
1168 size += cells; |
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|
1169 } |
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|
1170 if (tp->tp_col - 1 > col) |
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|
1171 break; |
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|
1172 } |
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|
1173 } |
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|
1174 # endif |
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|
1175 |
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|
1176 # ifdef FEAT_LINEBREAK |
7 | 1177 c = *s; |
6024 | 1178 if (tab_corr) |
1179 col_adj = size - 1; | |
7 | 1180 |
1181 /* | |
1182 * If 'linebreak' set check at a blank before a non-blank if the line | |
1183 * needs a break here | |
1184 */ | |
1185 if (wp->w_p_lbr | |
11127
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Christian Brabandt <cb@256bit.org>
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|
1186 && VIM_ISBREAK(c) |
11133
d8e830e32be9
patch 8.0.0454: compiler warnings for "always true" comparison
Christian Brabandt <cb@256bit.org>
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|
1187 && !VIM_ISBREAK((int)s[1]) |
7 | 1188 && wp->w_p_wrap |
12477
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|
1189 && wp->w_width != 0) |
7 | 1190 { |
1191 /* | |
1192 * Count all characters from first non-blank after a blank up to next | |
1193 * non-blank after a blank. | |
1194 */ | |
1195 numberextra = win_col_off(wp); | |
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|
1196 col2 = vcol; |
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|
1197 colmax = (colnr_T)(wp->w_width - numberextra - col_adj); |
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|
1198 if (vcol >= colmax) |
236 | 1199 { |
6024 | 1200 colmax += col_adj; |
1201 n = colmax + win_col_off2(wp); | |
236 | 1202 if (n > 0) |
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|
1203 colmax += (((vcol - colmax) / n) + 1) * n - col_adj; |
236 | 1204 } |
1205 | |
7 | 1206 for (;;) |
1207 { | |
1208 ps = s; | |
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|
1209 MB_PTR_ADV(s); |
7 | 1210 c = *s; |
1211 if (!(c != NUL | |
11127
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|
1212 && (VIM_ISBREAK(c) |
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|
1213 || (!VIM_ISBREAK(c) |
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|
1214 && (col2 == vcol || !VIM_ISBREAK((int)*ps)))))) |
7 | 1215 break; |
1216 | |
1217 col2 += win_chartabsize(wp, s, col2); | |
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|
1218 if (col2 >= colmax) // doesn't fit |
7 | 1219 { |
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|
1220 size = colmax - vcol + col_adj; |
7 | 1221 break; |
1222 } | |
1223 } | |
1224 } | |
1225 else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1 | |
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1226 && wp->w_p_wrap && in_win_border(wp, vcol)) |
7 | 1227 { |
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|
1228 ++size; // Count the ">" in the last column. |
7 | 1229 mb_added = 1; |
1230 } | |
1231 | |
1232 /* | |
5995 | 1233 * May have to add something for 'breakindent' and/or 'showbreak' |
1234 * string at start of line. | |
7 | 1235 * Set *headp to the size of what we add. |
27952
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|
1236 * Do not use 'showbreak' at the NUL after the text. |
7 | 1237 */ |
1238 added = 0; | |
27952
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|
1239 sbr = c == NUL ? empty_option : get_showbreak_value(wp); |
29451
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|
1240 if ((*sbr != NUL || wp->w_p_bri) && wp->w_p_wrap && vcol != 0) |
7 | 1241 { |
6503 | 1242 colnr_T sbrlen = 0; |
1243 int numberwidth = win_col_off(wp); | |
1244 | |
1245 numberextra = numberwidth; | |
29451
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|
1246 vcol += numberextra + mb_added; |
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|
1247 if (vcol >= (colnr_T)wp->w_width) |
7 | 1248 { |
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|
1249 vcol -= wp->w_width; |
12515
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parents:
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diff
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|
1250 numberextra = wp->w_width - (numberextra - win_col_off2(wp)); |
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|
1251 if (vcol >= numberextra && numberextra > 0) |
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|
1252 vcol %= numberextra; |
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|
1253 if (*sbr != NUL) |
6288 | 1254 { |
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Bram Moolenaar <Bram@vim.org>
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|
1255 sbrlen = (colnr_T)MB_CHARLEN(sbr); |
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|
1256 if (vcol >= sbrlen) |
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|
1257 vcol -= sbrlen; |
6288 | 1258 } |
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|
1259 if (vcol >= numberextra && numberextra > 0) |
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|
1260 vcol = vcol % numberextra; |
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|
1261 else if (vcol > 0 && numberextra > 0) |
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|
1262 vcol += numberwidth - win_col_off2(wp); |
6503 | 1263 |
1264 numberwidth -= win_col_off2(wp); | |
7 | 1265 } |
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|
1266 if (vcol == 0 || vcol + size + sbrlen > (colnr_T)wp->w_width) |
7 | 1267 { |
5995 | 1268 added = 0; |
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1269 if (*sbr != NUL) |
6503 | 1270 { |
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|
1271 if (size + sbrlen + numberwidth > (colnr_T)wp->w_width) |
6503 | 1272 { |
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91619e48e1a7
patch 8.1.1411: Coverity warns for divide by zero
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changeset
|
1273 // calculate effective window width |
12515
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|
1274 int width = (colnr_T)wp->w_width - sbrlen - numberwidth; |
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|
1275 int prev_width = vcol |
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|
1276 ? ((colnr_T)wp->w_width - (sbrlen + vcol)) : 0; |
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|
1277 |
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|
1278 if (width <= 0) |
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|
1279 width = (colnr_T)1; |
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|
1280 added += ((size - prev_width) / width) * vim_strsize(sbr); |
6503 | 1281 if ((size - prev_width) % width) |
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|
1282 // wrapped, add another length of 'sbr' |
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|
1283 added += vim_strsize(sbr); |
6503 | 1284 } |
1285 else | |
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|
1286 added += vim_strsize(sbr); |
6503 | 1287 } |
5995 | 1288 if (wp->w_p_bri) |
1289 added += get_breakindent_win(wp, line); | |
1290 | |
6160 | 1291 size += added; |
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|
1292 if (vcol != 0) |
7 | 1293 added = 0; |
1294 } | |
1295 } | |
1296 if (headp != NULL) | |
1297 *headp = added + mb_added; | |
1298 return size; | |
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|
1299 # endif |
7 | 1300 #endif |
1301 } | |
1302 | |
1303 /* | |
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1304 * Like win_lbr_chartabsize(), except that we know 'linebreak' is off, 'wrap' |
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1305 * is on and there are no properties that insert text. This means we need to |
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1306 * check for a double-byte character that doesn't fit at the end of the screen |
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1307 * line. |
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1308 * Only uses "cts_win", "cts_ptr" and "cts_vcol" from "cts". |
7 | 1309 */ |
1310 static int | |
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1311 win_nolbr_chartabsize( |
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1312 chartabsize_T *cts, |
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|
1313 int *headp) |
7 | 1314 { |
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1315 win_T *wp = cts->cts_win; |
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1316 char_u *s = cts->cts_ptr; |
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|
1317 colnr_T col = cts->cts_vcol; |
7 | 1318 int n; |
1319 | |
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1320 if (*s == TAB && (!wp->w_p_list || wp->w_lcs_chars.tab1)) |
7 | 1321 { |
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1322 # ifdef FEAT_VARTABS |
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1323 return tabstop_padding(col, wp->w_buffer->b_p_ts, |
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1324 wp->w_buffer->b_p_vts_array); |
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1325 # else |
7 | 1326 n = wp->w_buffer->b_p_ts; |
1327 return (int)(n - (col % n)); | |
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1328 # endif |
7 | 1329 } |
1330 n = ptr2cells(s); | |
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1331 // Add one cell for a double-width character in the last column of the |
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1332 // window, displayed with a ">". |
7 | 1333 if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col)) |
1334 { | |
1335 if (headp != NULL) | |
1336 *headp = 1; | |
1337 return 3; | |
1338 } | |
1339 return n; | |
1340 } | |
1341 | |
1342 /* | |
1343 * Return TRUE if virtual column "vcol" is in the rightmost column of window | |
1344 * "wp". | |
1345 */ | |
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1346 static int |
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|
1347 in_win_border(win_T *wp, colnr_T vcol) |
7 | 1348 { |
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1349 int width1; // width of first line (after line number) |
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1350 int width2; // width of further lines |
7 | 1351 |
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|
1352 if (wp->w_width == 0) // there is no border |
7 | 1353 return FALSE; |
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|
1354 width1 = wp->w_width - win_col_off(wp); |
1869 | 1355 if ((int)vcol < width1 - 1) |
7 | 1356 return FALSE; |
1869 | 1357 if ((int)vcol == width1 - 1) |
7 | 1358 return TRUE; |
1359 width2 = width1 + win_col_off2(wp); | |
1970 | 1360 if (width2 <= 0) |
1361 return FALSE; | |
7 | 1362 return ((vcol - width1) % width2 == width2 - 1); |
1363 } | |
1364 | |
1365 /* | |
1366 * Get virtual column number of pos. | |
1367 * start: on the first position of this character (TAB, ctrl) | |
1368 * cursor: where the cursor is on this character (first char, except for TAB) | |
1369 * end: on the last position of this character (TAB, ctrl) | |
1370 * | |
1371 * This is used very often, keep it fast! | |
1372 */ | |
1373 void | |
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1374 getvcol( |
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|
1375 win_T *wp, |
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1376 pos_T *pos, |
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1377 colnr_T *start, |
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|
1378 colnr_T *cursor, |
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|
1379 colnr_T *end) |
7 | 1380 { |
1381 colnr_T vcol; | |
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1382 char_u *ptr; // points to current char |
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1383 char_u *posptr; // points to char at pos->col |
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1384 char_u *line; // start of the line |
7 | 1385 int incr; |
1386 int head; | |
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1387 #ifdef FEAT_VARTABS |
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1388 int *vts = wp->w_buffer->b_p_vts_array; |
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1389 #endif |
7 | 1390 int ts = wp->w_buffer->b_p_ts; |
1391 int c; | |
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1392 chartabsize_T cts; |
7 | 1393 |
1394 vcol = 0; | |
5995 | 1395 line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
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1396 if (pos->col == MAXCOL) |
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1397 posptr = NULL; // continue until the NUL |
2108
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1398 else |
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1399 { |
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1400 colnr_T i; |
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1401 |
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1402 // In a few cases the position can be beyond the end of the line. |
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1403 for (i = 0; i < pos->col; ++i) |
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1404 if (ptr[i] == NUL) |
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1405 { |
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1406 pos->col = i; |
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1407 break; |
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1408 } |
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1409 posptr = ptr + pos->col; |
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1410 if (has_mbyte) |
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1411 // always start on the first byte |
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1412 posptr -= (*mb_head_off)(line, posptr); |
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1413 } |
7 | 1414 |
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1415 init_chartabsize_arg(&cts, wp, pos->lnum, 0, line, line); |
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1416 |
7 | 1417 /* |
1418 * This function is used very often, do some speed optimizations. | |
5995 | 1419 * When 'list', 'linebreak', 'showbreak' and 'breakindent' are not set |
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1420 * and there are no text properties with "text" use a simple loop. |
7 | 1421 * Also use this when 'list' is set but tabs take their normal size. |
1422 */ | |
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1423 if ((!wp->w_p_list || wp->w_lcs_chars.tab1 != NUL) |
7 | 1424 #ifdef FEAT_LINEBREAK |
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1425 && !wp->w_p_lbr && *get_showbreak_value(wp) == NUL && !wp->w_p_bri |
7 | 1426 #endif |
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|
1427 #ifdef FEAT_PROP_POPUP |
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|
1428 && !cts.cts_has_prop_with_text |
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|
1429 #endif |
7 | 1430 ) |
1431 { | |
1432 for (;;) | |
1433 { | |
1434 head = 0; | |
1435 c = *ptr; | |
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|
1436 // make sure we don't go past the end of the line |
7 | 1437 if (c == NUL) |
1438 { | |
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|
1439 incr = 1; // NUL at end of line only takes one column |
7 | 1440 break; |
1441 } | |
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|
1442 // A tab gets expanded, depending on the current column |
7 | 1443 if (c == TAB) |
14175
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|
1444 #ifdef FEAT_VARTABS |
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diff
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|
1445 incr = tabstop_padding(vcol, ts, vts); |
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|
1446 #else |
7 | 1447 incr = ts - (vcol % ts); |
14175
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|
1448 #endif |
7 | 1449 else |
1450 { | |
1451 if (has_mbyte) | |
1452 { | |
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|
1453 // For utf-8, if the byte is >= 0x80, need to look at |
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|
1454 // further bytes to find the cell width. |
7 | 1455 if (enc_utf8 && c >= 0x80) |
1456 incr = utf_ptr2cells(ptr); | |
1457 else | |
7697
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|
1458 incr = g_chartab[c] & CT_CELL_MASK; |
7 | 1459 |
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|
1460 // If a double-cell char doesn't fit at the end of a line |
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|
1461 // it wraps to the next line, it's like this char is three |
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|
1462 // cells wide. |
1546 | 1463 if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1 |
1464 && in_win_border(wp, vcol)) | |
7 | 1465 { |
1466 ++incr; | |
1467 head = 1; | |
1468 } | |
1469 } | |
1470 else | |
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|
1471 incr = g_chartab[c] & CT_CELL_MASK; |
7 | 1472 } |
1473 | |
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|
1474 if (posptr != NULL && ptr >= posptr) // character at pos->col |
7 | 1475 break; |
1476 | |
1477 vcol += incr; | |
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|
1478 MB_PTR_ADV(ptr); |
7 | 1479 } |
1480 } | |
1481 else | |
1482 { | |
1483 for (;;) | |
1484 { | |
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|
1485 // A tab gets expanded, depending on the current column. |
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|
1486 // Other things also take up space. |
7 | 1487 head = 0; |
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|
1488 incr = win_lbr_chartabsize(&cts, &head); |
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|
1489 // make sure we don't go past the end of the line |
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1490 if (*cts.cts_ptr == NUL) |
7 | 1491 { |
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|
1492 incr = 1; // NUL at end of line only takes one column |
7 | 1493 break; |
1494 } | |
1495 | |
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|
1496 if (posptr != NULL && cts.cts_ptr >= posptr) |
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|
1497 // character at pos->col |
7 | 1498 break; |
1499 | |
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1500 cts.cts_vcol += incr; |
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1501 MB_PTR_ADV(cts.cts_ptr); |
7 | 1502 } |
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1503 vcol = cts.cts_vcol; |
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|
1504 ptr = cts.cts_ptr; |
7 | 1505 } |
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1506 clear_chartabsize_arg(&cts); |
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1507 |
7 | 1508 if (start != NULL) |
1509 *start = vcol + head; | |
1510 if (end != NULL) | |
1511 *end = vcol + incr - 1; | |
1512 if (cursor != NULL) | |
1513 { | |
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1514 #ifdef FEAT_PROP_POPUP |
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1515 if ((State & MODE_INSERT) == 0) |
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1516 // cursor is after inserted text |
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|
1517 vcol += cts.cts_cur_text_width; |
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1518 #endif |
7 | 1519 if (*ptr == TAB |
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|
1520 && (State & MODE_NORMAL) |
7 | 1521 && !wp->w_p_list |
1522 && !virtual_active() | |
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1523 && !(VIsual_active |
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|
1524 && (*p_sel == 'e' || LTOREQ_POS(*pos, VIsual))) |
7 | 1525 ) |
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1526 *cursor = vcol + incr - 1; // cursor at end |
7 | 1527 else |
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1528 *cursor = vcol + head; // cursor at start |
7 | 1529 } |
1530 } | |
1531 | |
1532 /* | |
1533 * Get virtual cursor column in the current window, pretending 'list' is off. | |
1534 */ | |
1535 colnr_T | |
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|
1536 getvcol_nolist(pos_T *posp) |
7 | 1537 { |
1538 int list_save = curwin->w_p_list; | |
1539 colnr_T vcol; | |
1540 | |
1541 curwin->w_p_list = FALSE; | |
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|
1542 if (posp->coladd) |
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|
1543 getvvcol(curwin, posp, NULL, &vcol, NULL); |
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1544 else |
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|
1545 getvcol(curwin, posp, NULL, &vcol, NULL); |
7 | 1546 curwin->w_p_list = list_save; |
1547 return vcol; | |
1548 } | |
1549 | |
1550 /* | |
1551 * Get virtual column in virtual mode. | |
1552 */ | |
1553 void | |
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1554 getvvcol( |
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|
1555 win_T *wp, |
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|
1556 pos_T *pos, |
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|
1557 colnr_T *start, |
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1558 colnr_T *cursor, |
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|
1559 colnr_T *end) |
7 | 1560 { |
1561 colnr_T col; | |
1562 colnr_T coladd; | |
1563 colnr_T endadd; | |
1564 char_u *ptr; | |
1565 | |
1566 if (virtual_active()) | |
1567 { | |
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|
1568 // For virtual mode, only want one value |
7 | 1569 getvcol(wp, pos, &col, NULL, NULL); |
1570 | |
1571 coladd = pos->coladd; | |
1572 endadd = 0; | |
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1573 // Cannot put the cursor on part of a wide character. |
7 | 1574 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
1869 | 1575 if (pos->col < (colnr_T)STRLEN(ptr)) |
7 | 1576 { |
1577 int c = (*mb_ptr2char)(ptr + pos->col); | |
1578 | |
1579 if (c != TAB && vim_isprintc(c)) | |
1580 { | |
1869 | 1581 endadd = (colnr_T)(char2cells(c) - 1); |
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1582 if (coladd > endadd) // past end of line |
557 | 1583 endadd = 0; |
7 | 1584 else |
1585 coladd = 0; | |
1586 } | |
1587 } | |
1588 col += coladd; | |
1589 if (start != NULL) | |
1590 *start = col; | |
1591 if (cursor != NULL) | |
1592 *cursor = col; | |
1593 if (end != NULL) | |
1594 *end = col + endadd; | |
1595 } | |
1596 else | |
1597 getvcol(wp, pos, start, cursor, end); | |
1598 } | |
1599 | |
1600 /* | |
1601 * Get the leftmost and rightmost virtual column of pos1 and pos2. | |
1602 * Used for Visual block mode. | |
1603 */ | |
1604 void | |
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1605 getvcols( |
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|
1606 win_T *wp, |
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1607 pos_T *pos1, |
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1608 pos_T *pos2, |
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1609 colnr_T *left, |
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1610 colnr_T *right) |
7 | 1611 { |
1612 colnr_T from1, from2, to1, to2; | |
1613 | |
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1614 if (LT_POSP(pos1, pos2)) |
7 | 1615 { |
1616 getvvcol(wp, pos1, &from1, NULL, &to1); | |
1617 getvvcol(wp, pos2, &from2, NULL, &to2); | |
1618 } | |
1619 else | |
1620 { | |
1621 getvvcol(wp, pos2, &from1, NULL, &to1); | |
1622 getvvcol(wp, pos1, &from2, NULL, &to2); | |
1623 } | |
1624 if (from2 < from1) | |
1625 *left = from2; | |
1626 else | |
1627 *left = from1; | |
1628 if (to2 > to1) | |
1629 { | |
1630 if (*p_sel == 'e' && from2 - 1 >= to1) | |
1631 *right = from2 - 1; | |
1632 else | |
1633 *right = to2; | |
1634 } | |
1635 else | |
1636 *right = to1; | |
1637 } | |
1638 | |
1639 /* | |
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1640 * Skip over ' ' and '\t'. |
7 | 1641 */ |
1642 char_u * | |
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1643 skipwhite(char_u *q) |
7 | 1644 { |
1687 | 1645 char_u *p = q; |
1646 | |
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1647 while (VIM_ISWHITE(*p)) |
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1648 ++p; |
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1649 return p; |
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1650 } |
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1651 |
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1652 #if defined(FEAT_EVAL) || defined(PROTO) |
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1653 /* |
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1654 * skip over ' ', '\t' and '\n'. |
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1655 */ |
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1656 char_u * |
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1657 skipwhite_and_nl(char_u *q) |
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1658 { |
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1659 char_u *p = q; |
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|
1660 |
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|
1661 while (VIM_ISWHITE(*p) || *p == NL) |
7 | 1662 ++p; |
1663 return p; | |
1664 } | |
27018
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|
1665 #endif |
7 | 1666 |
1667 /* | |
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|
1668 * getwhitecols: return the number of whitespace |
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|
1669 * columns (bytes) at the start of a given line |
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|
1670 */ |
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|
1671 int |
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|
1672 getwhitecols_curline() |
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|
1673 { |
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|
1674 return getwhitecols(ml_get_curline()); |
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|
1675 } |
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|
1676 |
4dba3e4f3b01
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|
1677 int |
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|
1678 getwhitecols(char_u *p) |
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|
1679 { |
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|
1680 return skipwhite(p) - p; |
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|
1681 } |
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|
1682 |
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|
1683 /* |
293 | 1684 * skip over digits |
7 | 1685 */ |
1686 char_u * | |
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|
1687 skipdigits(char_u *q) |
7 | 1688 { |
1687 | 1689 char_u *p = q; |
1690 | |
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|
1691 while (VIM_ISDIGIT(*p)) // skip to next non-digit |
7 | 1692 ++p; |
1693 return p; | |
1694 } | |
1695 | |
741 | 1696 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO) |
301 | 1697 /* |
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|
1698 * skip over binary digits |
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|
1699 */ |
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|
1700 char_u * |
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|
1701 skipbin(char_u *q) |
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1702 { |
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|
1703 char_u *p = q; |
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1704 |
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|
1705 while (vim_isbdigit(*p)) // skip to next non-digit |
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|
1706 ++p; |
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|
1707 return p; |
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1708 } |
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|
1709 |
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|
1710 /* |
301 | 1711 * skip over digits and hex characters |
1712 */ | |
1713 char_u * | |
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|
1714 skiphex(char_u *q) |
301 | 1715 { |
1687 | 1716 char_u *p = q; |
1717 | |
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|
1718 while (vim_isxdigit(*p)) // skip to next non-digit |
301 | 1719 ++p; |
1720 return p; | |
1721 } | |
1722 #endif | |
1723 | |
293 | 1724 /* |
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|
1725 * skip to bin digit (or NUL after the string) |
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1726 */ |
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|
1727 char_u * |
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|
1728 skiptobin(char_u *q) |
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1729 { |
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1730 char_u *p = q; |
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1731 |
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1732 while (*p != NUL && !vim_isbdigit(*p)) // skip to next digit |
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1733 ++p; |
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1734 return p; |
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1735 } |
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1736 |
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|
1737 /* |
293 | 1738 * skip to digit (or NUL after the string) |
1739 */ | |
1740 char_u * | |
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|
1741 skiptodigit(char_u *q) |
293 | 1742 { |
1687 | 1743 char_u *p = q; |
1744 | |
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1745 while (*p != NUL && !VIM_ISDIGIT(*p)) // skip to next digit |
293 | 1746 ++p; |
1747 return p; | |
1748 } | |
1749 | |
1750 /* | |
1751 * skip to hex character (or NUL after the string) | |
1752 */ | |
1753 char_u * | |
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|
1754 skiptohex(char_u *q) |
293 | 1755 { |
1687 | 1756 char_u *p = q; |
1757 | |
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|
1758 while (*p != NUL && !vim_isxdigit(*p)) // skip to next digit |
293 | 1759 ++p; |
1760 return p; | |
1761 } | |
1762 | |
7 | 1763 /* |
1764 * Variant of isdigit() that can handle characters > 0x100. | |
1765 * We don't use isdigit() here, because on some systems it also considers | |
1766 * superscript 1 to be a digit. | |
1767 * Use the VIM_ISDIGIT() macro for simple arguments. | |
1768 */ | |
1769 int | |
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|
1770 vim_isdigit(int c) |
7 | 1771 { |
1772 return (c >= '0' && c <= '9'); | |
1773 } | |
1774 | |
1775 /* | |
1776 * Variant of isxdigit() that can handle characters > 0x100. | |
1777 * We don't use isxdigit() here, because on some systems it also considers | |
1778 * superscript 1 to be a digit. | |
1779 */ | |
1780 int | |
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|
1781 vim_isxdigit(int c) |
7 | 1782 { |
1783 return (c >= '0' && c <= '9') | |
1784 || (c >= 'a' && c <= 'f') | |
1785 || (c >= 'A' && c <= 'F'); | |
1786 } | |
1787 | |
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1788 /* |
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|
1789 * Corollary of vim_isdigit and vim_isxdigit() that can handle |
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|
1790 * characters > 0x100. |
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1791 */ |
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|
1792 int |
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|
1793 vim_isbdigit(int c) |
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1794 { |
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|
1795 return (c == '0' || c == '1'); |
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1796 } |
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1797 |
23533
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|
1798 static int |
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|
1799 vim_isodigit(int c) |
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1800 { |
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1801 return (c >= '0' && c <= '7'); |
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1802 } |
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1803 |
492 | 1804 /* |
1805 * Vim's own character class functions. These exist because many library | |
1806 * islower()/toupper() etc. do not work properly: they crash when used with | |
1807 * invalid values or can't handle latin1 when the locale is C. | |
1808 * Speed is most important here. | |
1809 */ | |
1810 #define LATIN1LOWER 'l' | |
1811 #define LATIN1UPPER 'U' | |
1812 | |
497 | 1813 static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll"; |
3533 | 1814 static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xf7\xd8\xd9\xda\xdb\xdc\xdd\xde\xff"; |
1815 static char_u latin1lower[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@abcdefghijklmnopqrstuvwxyz[\\]^_`abcdefghijklmnopqrstuvwxyz{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xd7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xdf\xe0\xe1\xe2\xe3\xe4\xe5\xe6\xe7\xe8\xe9\xea\xeb\xec\xed\xee\xef\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"; | |
492 | 1816 |
1817 int | |
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|
1818 vim_islower(int c) |
492 | 1819 { |
1820 if (c <= '@') | |
1821 return FALSE; | |
1822 if (c >= 0x80) | |
1823 { | |
1824 if (enc_utf8) | |
1825 return utf_islower(c); | |
1826 if (c >= 0x100) | |
1827 { | |
1828 #ifdef HAVE_ISWLOWER | |
1829 if (has_mbyte) | |
1830 return iswlower(c); | |
1831 #endif | |
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|
1832 // islower() can't handle these chars and may crash |
492 | 1833 return FALSE; |
1834 } | |
1835 if (enc_latin1like) | |
1836 return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER; | |
1837 } | |
1838 return islower(c); | |
1839 } | |
1840 | |
1841 int | |
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1842 vim_isupper(int c) |
492 | 1843 { |
1844 if (c <= '@') | |
1845 return FALSE; | |
1846 if (c >= 0x80) | |
1847 { | |
1848 if (enc_utf8) | |
1849 return utf_isupper(c); | |
1850 if (c >= 0x100) | |
1851 { | |
1852 #ifdef HAVE_ISWUPPER | |
1853 if (has_mbyte) | |
1854 return iswupper(c); | |
1855 #endif | |
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1856 // islower() can't handle these chars and may crash |
492 | 1857 return FALSE; |
1858 } | |
1859 if (enc_latin1like) | |
1860 return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER; | |
1861 } | |
1862 return isupper(c); | |
1863 } | |
1864 | |
1865 int | |
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1866 vim_isalpha(int c) |
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1867 { |
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1868 return vim_islower(c) || vim_isupper(c); |
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1869 } |
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1870 |
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1871 int |
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1872 vim_toupper(int c) |
492 | 1873 { |
1874 if (c <= '@') | |
1875 return c; | |
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1876 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
492 | 1877 { |
1878 if (enc_utf8) | |
1879 return utf_toupper(c); | |
1880 if (c >= 0x100) | |
1881 { | |
1882 #ifdef HAVE_TOWUPPER | |
1883 if (has_mbyte) | |
1884 return towupper(c); | |
1885 #endif | |
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1886 // toupper() can't handle these chars and may crash |
492 | 1887 return c; |
1888 } | |
1889 if (enc_latin1like) | |
1890 return latin1upper[c]; | |
1891 } | |
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1892 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
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1893 return TOUPPER_ASC(c); |
492 | 1894 return TOUPPER_LOC(c); |
1895 } | |
1896 | |
1897 int | |
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1898 vim_tolower(int c) |
492 | 1899 { |
1900 if (c <= '@') | |
1901 return c; | |
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1902 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
492 | 1903 { |
1904 if (enc_utf8) | |
1905 return utf_tolower(c); | |
1906 if (c >= 0x100) | |
1907 { | |
1908 #ifdef HAVE_TOWLOWER | |
1909 if (has_mbyte) | |
1910 return towlower(c); | |
1911 #endif | |
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1912 // tolower() can't handle these chars and may crash |
492 | 1913 return c; |
1914 } | |
1915 if (enc_latin1like) | |
1916 return latin1lower[c]; | |
1917 } | |
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1918 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
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1919 return TOLOWER_ASC(c); |
492 | 1920 return TOLOWER_LOC(c); |
1921 } | |
1922 | |
7 | 1923 /* |
1924 * skiptowhite: skip over text until ' ' or '\t' or NUL. | |
1925 */ | |
1926 char_u * | |
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1927 skiptowhite(char_u *p) |
7 | 1928 { |
1929 while (*p != ' ' && *p != '\t' && *p != NUL) | |
1930 ++p; | |
1931 return p; | |
1932 } | |
1933 | |
1934 /* | |
1935 * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars | |
1936 */ | |
1937 char_u * | |
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1938 skiptowhite_esc(char_u *p) |
7 | 1939 { |
1940 while (*p != ' ' && *p != '\t' && *p != NUL) | |
1941 { | |
1942 if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL) | |
1943 ++p; | |
1944 ++p; | |
1945 } | |
1946 return p; | |
1947 } | |
1948 | |
1949 /* | |
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1950 * Get a number from a string and skip over it. |
7 | 1951 * Note: the argument is a pointer to a char_u pointer! |
1952 */ | |
1953 long | |
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1954 getdigits(char_u **pp) |
7 | 1955 { |
1956 char_u *p; | |
1957 long retval; | |
1958 | |
1959 p = *pp; | |
1960 retval = atol((char *)p); | |
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1961 if (*p == '-') // skip negative sign |
7 | 1962 ++p; |
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1963 p = skipdigits(p); // skip to next non-digit |
7 | 1964 *pp = p; |
1965 return retval; | |
1966 } | |
1967 | |
1968 /* | |
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1969 * Like getdigits() but allow for embedded single quotes. |
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1970 */ |
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1971 long |
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1972 getdigits_quoted(char_u **pp) |
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1973 { |
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1974 char_u *p = *pp; |
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1975 long retval = 0; |
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1976 |
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1977 if (*p == '-') |
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1978 ++p; |
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1979 while (VIM_ISDIGIT(*p)) |
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1980 { |
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1981 if (retval >= LONG_MAX / 10 - 10) |
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1982 retval = LONG_MAX; |
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1983 else |
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1984 retval = retval * 10 - '0' + *p; |
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1985 ++p; |
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1986 if (in_vim9script() && *p == '\'' && VIM_ISDIGIT(p[1])) |
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1987 ++p; |
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1988 } |
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1989 if (**pp == '-') |
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1990 { |
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1991 if (retval == LONG_MAX) |
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1992 retval = LONG_MIN; |
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1993 else |
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1994 retval = -retval; |
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1995 } |
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1996 *pp = p; |
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1997 return retval; |
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1998 } |
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1999 |
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2000 /* |
7 | 2001 * Return TRUE if "lbuf" is empty or only contains blanks. |
2002 */ | |
2003 int | |
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2004 vim_isblankline(char_u *lbuf) |
7 | 2005 { |
2006 char_u *p; | |
2007 | |
2008 p = skipwhite(lbuf); | |
2009 return (*p == NUL || *p == '\r' || *p == '\n'); | |
2010 } | |
2011 | |
2012 /* | |
2013 * Convert a string into a long and/or unsigned long, taking care of | |
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2014 * hexadecimal, octal, and binary numbers. Accepts a '-' sign. |
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2015 * If "prep" is not NULL, returns a flag to indicate the type of the number: |
7 | 2016 * 0 decimal |
2017 * '0' octal | |
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2018 * 'O' octal |
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2019 * 'o' octal |
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2020 * 'B' bin |
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2021 * 'b' bin |
7 | 2022 * 'X' hex |
2023 * 'x' hex | |
2024 * If "len" is not NULL, the length of the number in characters is returned. | |
2025 * If "nptr" is not NULL, the signed result is returned in it. | |
2026 * If "unptr" is not NULL, the unsigned result is returned in it. | |
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2027 * If "what" contains STR2NR_BIN recognize binary numbers |
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2028 * If "what" contains STR2NR_OCT recognize octal numbers |
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2029 * If "what" contains STR2NR_HEX recognize hex numbers |
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2030 * If "what" contains STR2NR_FORCE always assume bin/oct/hex. |
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2031 * If "what" contains STR2NR_QUOTE ignore embedded single quotes |
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2032 * If maxlen > 0, check at a maximum maxlen chars. |
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2033 * If strict is TRUE, check the number strictly. return *len = 0 if fail. |
7 | 2034 */ |
2035 void | |
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2036 vim_str2nr( |
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2037 char_u *start, |
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2038 int *prep, // return: type of number 0 = decimal, 'x' |
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2039 // or 'X' is hex, '0', 'o' or 'O' is octal, |
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2040 // 'b' or 'B' is bin |
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2041 int *len, // return: detected length of number |
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2042 int what, // what numbers to recognize |
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2043 varnumber_T *nptr, // return: signed result |
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2044 uvarnumber_T *unptr, // return: unsigned result |
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2045 int maxlen, // max length of string to check |
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2046 int strict) // check strictly |
7 | 2047 { |
2048 char_u *ptr = start; | |
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2049 int pre = 0; // default is decimal |
7 | 2050 int negative = FALSE; |
9389
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commit https://github.com/vim/vim/commit/22fcfad29276bd5f317faf516637dcd491b96a12
Christian Brabandt <cb@256bit.org>
parents:
8643
diff
changeset
|
2051 uvarnumber_T un = 0; |
39 | 2052 int n; |
7 | 2053 |
16706
77bcb5055fec
patch 8.1.1355: obvious mistakes are accepted as valid expressions
Bram Moolenaar <Bram@vim.org>
parents:
16054
diff
changeset
|
2054 if (len != NULL) |
77bcb5055fec
patch 8.1.1355: obvious mistakes are accepted as valid expressions
Bram Moolenaar <Bram@vim.org>
parents:
16054
diff
changeset
|
2055 *len = 0; |
77bcb5055fec
patch 8.1.1355: obvious mistakes are accepted as valid expressions
Bram Moolenaar <Bram@vim.org>
parents:
16054
diff
changeset
|
2056 |
7 | 2057 if (ptr[0] == '-') |
2058 { | |
2059 negative = TRUE; | |
2060 ++ptr; | |
2061 } | |
2062 | |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2063 // Recognize hex, octal, and bin. |
6927 | 2064 if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9' |
2065 && (maxlen == 0 || maxlen > 1)) | |
7 | 2066 { |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2067 pre = ptr[1]; |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2068 if ((what & STR2NR_HEX) |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2069 && (pre == 'X' || pre == 'x') && vim_isxdigit(ptr[2]) |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2070 && (maxlen == 0 || maxlen > 2)) |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2071 // hexadecimal |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2072 ptr += 2; |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2073 else if ((what & STR2NR_BIN) |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2074 && (pre == 'B' || pre == 'b') && vim_isbdigit(ptr[2]) |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2075 && (maxlen == 0 || maxlen > 2)) |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2076 // binary |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2077 ptr += 2; |
20665
6ff992bf4c82
patch 8.2.0886: cannot use octal numbers in scriptversion 4
Bram Moolenaar <Bram@vim.org>
parents:
20007
diff
changeset
|
2078 else if ((what & STR2NR_OOCT) |
23533
ee43d943c3bb
patch 8.2.2309: 0o777 not recognized as octal
Bram Moolenaar <Bram@vim.org>
parents:
20782
diff
changeset
|
2079 && (pre == 'O' || pre == 'o') && vim_isodigit(ptr[2]) |
20665
6ff992bf4c82
patch 8.2.0886: cannot use octal numbers in scriptversion 4
Bram Moolenaar <Bram@vim.org>
parents:
20007
diff
changeset
|
2080 && (maxlen == 0 || maxlen > 2)) |
6ff992bf4c82
patch 8.2.0886: cannot use octal numbers in scriptversion 4
Bram Moolenaar <Bram@vim.org>
parents:
20007
diff
changeset
|
2081 // octal with prefix "0o" |
6ff992bf4c82
patch 8.2.0886: cannot use octal numbers in scriptversion 4
Bram Moolenaar <Bram@vim.org>
parents:
20007
diff
changeset
|
2082 ptr += 2; |
7 | 2083 else |
2084 { | |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2085 // decimal or octal, default is decimal |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2086 pre = 0; |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2087 if (what & STR2NR_OCT) |
39 | 2088 { |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2089 // Don't interpret "0", "08" or "0129" as octal. |
12704
ee5f3f5d3c55
patch 8.0.1230: CTRL-A in Visual mode uses character after selection
Christian Brabandt <cb@256bit.org>
parents:
12702
diff
changeset
|
2090 for (n = 1; n != maxlen && VIM_ISDIGIT(ptr[n]); ++n) |
39 | 2091 { |
2092 if (ptr[n] > '7') | |
2093 { | |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2094 pre = 0; // can't be octal |
39 | 2095 break; |
2096 } | |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2097 pre = '0'; // assume octal |
39 | 2098 } |
2099 } | |
7 | 2100 } |
2101 } | |
2102 | |
16706
77bcb5055fec
patch 8.1.1355: obvious mistakes are accepted as valid expressions
Bram Moolenaar <Bram@vim.org>
parents:
16054
diff
changeset
|
2103 // Do the conversion manually to avoid sscanf() quirks. |
6927 | 2104 n = 1; |
18082
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2105 if (pre == 'B' || pre == 'b' |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2106 || ((what & STR2NR_BIN) && (what & STR2NR_FORCE))) |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2107 { |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2108 // bin |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2109 if (pre != 0) |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2110 n += 2; // skip over "0b" |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2111 while ('0' <= *ptr && *ptr <= '1') |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2112 { |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2113 // avoid ubsan error for overflow |
14061
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2114 if (un <= UVARNUM_MAX / 2) |
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2115 un = 2 * un + (uvarnumber_T)(*ptr - '0'); |
10658
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2116 else |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2117 un = UVARNUM_MAX; |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2118 ++ptr; |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2119 if (n++ == maxlen) |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2120 break; |
18082
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2121 if ((what & STR2NR_QUOTE) && *ptr == '\'' |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2122 && '0' <= ptr[1] && ptr[1] <= '1') |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2123 { |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2124 ++ptr; |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2125 if (n++ == maxlen) |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2126 break; |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2127 } |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2128 } |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2129 } |
20665
6ff992bf4c82
patch 8.2.0886: cannot use octal numbers in scriptversion 4
Bram Moolenaar <Bram@vim.org>
parents:
20007
diff
changeset
|
2130 else if (pre == 'O' || pre == 'o' || |
6ff992bf4c82
patch 8.2.0886: cannot use octal numbers in scriptversion 4
Bram Moolenaar <Bram@vim.org>
parents:
20007
diff
changeset
|
2131 pre == '0' || ((what & STR2NR_OCT) && (what & STR2NR_FORCE))) |
7 | 2132 { |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2133 // octal |
20665
6ff992bf4c82
patch 8.2.0886: cannot use octal numbers in scriptversion 4
Bram Moolenaar <Bram@vim.org>
parents:
20007
diff
changeset
|
2134 if (pre != 0 && pre != '0') |
6ff992bf4c82
patch 8.2.0886: cannot use octal numbers in scriptversion 4
Bram Moolenaar <Bram@vim.org>
parents:
20007
diff
changeset
|
2135 n += 2; // skip over "0o" |
293 | 2136 while ('0' <= *ptr && *ptr <= '7') |
7 | 2137 { |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2138 // avoid ubsan error for overflow |
14061
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2139 if (un <= UVARNUM_MAX / 8) |
10658
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2140 un = 8 * un + (uvarnumber_T)(*ptr - '0'); |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2141 else |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2142 un = UVARNUM_MAX; |
293 | 2143 ++ptr; |
6927 | 2144 if (n++ == maxlen) |
2145 break; | |
18082
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2146 if ((what & STR2NR_QUOTE) && *ptr == '\'' |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2147 && '0' <= ptr[1] && ptr[1] <= '7') |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2148 { |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2149 ++ptr; |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2150 if (n++ == maxlen) |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2151 break; |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2152 } |
7 | 2153 } |
293 | 2154 } |
18082
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2155 else if (pre != 0 || ((what & STR2NR_HEX) && (what & STR2NR_FORCE))) |
293 | 2156 { |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2157 // hex |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2158 if (pre != 0) |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2159 n += 2; // skip over "0x" |
293 | 2160 while (vim_isxdigit(*ptr)) |
7 | 2161 { |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2162 // avoid ubsan error for overflow |
14061
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2163 if (un <= UVARNUM_MAX / 16) |
10658
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2164 un = 16 * un + (uvarnumber_T)hex2nr(*ptr); |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2165 else |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2166 un = UVARNUM_MAX; |
293 | 2167 ++ptr; |
6927 | 2168 if (n++ == maxlen) |
2169 break; | |
18082
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2170 if ((what & STR2NR_QUOTE) && *ptr == '\'' && vim_isxdigit(ptr[1])) |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2171 { |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2172 ++ptr; |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2173 if (n++ == maxlen) |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2174 break; |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2175 } |
7 | 2176 } |
2177 } | |
2178 else | |
2179 { | |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2180 // decimal |
7 | 2181 while (VIM_ISDIGIT(*ptr)) |
2182 { | |
14061
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2183 uvarnumber_T digit = (uvarnumber_T)(*ptr - '0'); |
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2184 |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2185 // avoid ubsan error for overflow |
14061
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2186 if (un < UVARNUM_MAX / 10 |
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2187 || (un == UVARNUM_MAX / 10 && digit <= UVARNUM_MAX % 10)) |
47b2db8a5709
patch 8.1.0048: vim_str2nr() does not handle numbers close to the maximum
Christian Brabandt <cb@256bit.org>
parents:
13786
diff
changeset
|
2188 un = 10 * un + digit; |
10658
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2189 else |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2190 un = UVARNUM_MAX; |
7 | 2191 ++ptr; |
6927 | 2192 if (n++ == maxlen) |
2193 break; | |
18082
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2194 if ((what & STR2NR_QUOTE) && *ptr == '\'' && VIM_ISDIGIT(ptr[1])) |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
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parents:
17809
diff
changeset
|
2195 { |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
17809
diff
changeset
|
2196 ++ptr; |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
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parents:
17809
diff
changeset
|
2197 if (n++ == maxlen) |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
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parents:
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2198 break; |
1c7a91cf2356
patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
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2199 } |
7 | 2200 } |
2201 } | |
18082
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patch 8.1.2036: the str2nr() tests fail
Bram Moolenaar <Bram@vim.org>
parents:
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2202 |
19195
2ef19eed524a
patch 8.2.0156: various typos in source files and tests
Bram Moolenaar <Bram@vim.org>
parents:
18757
diff
changeset
|
2203 // Check for an alphanumeric character immediately following, that is |
16706
77bcb5055fec
patch 8.1.1355: obvious mistakes are accepted as valid expressions
Bram Moolenaar <Bram@vim.org>
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16054
diff
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2204 // most likely a typo. |
77bcb5055fec
patch 8.1.1355: obvious mistakes are accepted as valid expressions
Bram Moolenaar <Bram@vim.org>
parents:
16054
diff
changeset
|
2205 if (strict && n - 1 != maxlen && ASCII_ISALNUM(*ptr)) |
77bcb5055fec
patch 8.1.1355: obvious mistakes are accepted as valid expressions
Bram Moolenaar <Bram@vim.org>
parents:
16054
diff
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|
2206 return; |
7 | 2207 |
7447
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2208 if (prep != NULL) |
ad432f8f68fb
commit https://github.com/vim/vim/commit/887c1fea4a114e7170091942d0446c8882701b5b
Christian Brabandt <cb@256bit.org>
parents:
7072
diff
changeset
|
2209 *prep = pre; |
7 | 2210 if (len != NULL) |
2211 *len = (int)(ptr - start); | |
2212 if (nptr != NULL) | |
16 | 2213 { |
18757
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2214 if (negative) // account for leading '-' for decimal numbers |
10658
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2215 { |
18757
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patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
2216 // avoid ubsan error for overflow |
10658
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2217 if (un > VARNUM_MAX) |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2218 *nptr = VARNUM_MIN; |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2219 else |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2220 *nptr = -(varnumber_T)un; |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2221 } |
16 | 2222 else |
10658
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patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2223 { |
28964
8973f2f00872
patch 8.2.5004: right shift on negative number does not work as documented
Bram Moolenaar <Bram@vim.org>
parents:
28942
diff
changeset
|
2224 // prevent a larg unsigned number to become negative |
10658
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2225 if (un > VARNUM_MAX) |
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2226 un = VARNUM_MAX; |
9389
32e34e574716
commit https://github.com/vim/vim/commit/22fcfad29276bd5f317faf516637dcd491b96a12
Christian Brabandt <cb@256bit.org>
parents:
8643
diff
changeset
|
2227 *nptr = (varnumber_T)un; |
10658
77d66e9ac0ab
patch 8.0.0219: ubsan reports errors for overflow
Christian Brabandt <cb@256bit.org>
parents:
10549
diff
changeset
|
2228 } |
16 | 2229 } |
7 | 2230 if (unptr != NULL) |
2231 *unptr = un; | |
2232 } | |
2233 | |
2234 /* | |
2235 * Return the value of a single hex character. | |
2236 * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'. | |
2237 */ | |
2238 int | |
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2239 hex2nr(int c) |
7 | 2240 { |
2241 if (c >= 'a' && c <= 'f') | |
2242 return c - 'a' + 10; | |
2243 if (c >= 'A' && c <= 'F') | |
2244 return c - 'A' + 10; | |
2245 return c - '0'; | |
2246 } | |
2247 | |
2248 /* | |
2249 * Convert two hex characters to a byte. | |
2250 * Return -1 if one of the characters is not hex. | |
2251 */ | |
2252 int | |
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2253 hexhex2nr(char_u *p) |
7 | 2254 { |
2255 if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1])) | |
2256 return -1; | |
2257 return (hex2nr(p[0]) << 4) + hex2nr(p[1]); | |
2258 } | |
2259 | |
2260 /* | |
2261 * Return TRUE if "str" starts with a backslash that should be removed. | |
16054
78faa25f9698
patch 8.1.1032: warnings from clang static analyzer
Bram Moolenaar <Bram@vim.org>
parents:
15850
diff
changeset
|
2262 * For MS-DOS, MSWIN and OS/2 this is only done when the character after the |
7 | 2263 * backslash is not a normal file name character. |
2264 * '$' is a valid file name character, we don't remove the backslash before | |
2265 * it. This means it is not possible to use an environment variable after a | |
2266 * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works. | |
2267 * Although "\ name" is valid, the backslash in "Program\ files" must be | |
2268 * removed. Assume a file name doesn't start with a space. | |
2269 * For multi-byte names, never remove a backslash before a non-ascii | |
2270 * character, assume that all multi-byte characters are valid file name | |
2271 * characters. | |
2272 */ | |
2273 int | |
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2274 rem_backslash(char_u *str) |
7 | 2275 { |
2276 #ifdef BACKSLASH_IN_FILENAME | |
2277 return (str[0] == '\\' | |
2278 && str[1] < 0x80 | |
2279 && (str[1] == ' ' | |
2280 || (str[1] != NUL | |
2281 && str[1] != '*' | |
2282 && str[1] != '?' | |
2283 && !vim_isfilec(str[1])))); | |
2284 #else | |
2285 return (str[0] == '\\' && str[1] != NUL); | |
2286 #endif | |
2287 } | |
2288 | |
2289 /* | |
2290 * Halve the number of backslashes in a file name argument. | |
2291 * For MS-DOS we only do this if the character after the backslash | |
2292 * is not a normal file character. | |
2293 */ | |
2294 void | |
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commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2295 backslash_halve(char_u *p) |
7 | 2296 { |
2297 for ( ; *p; ++p) | |
2298 if (rem_backslash(p)) | |
1621 | 2299 STRMOVE(p, p + 1); |
7 | 2300 } |
2301 | |
2302 /* | |
2303 * backslash_halve() plus save the result in allocated memory. | |
17809
59f8948b7590
patch 8.1.1901: the +insert_expand feature is not always available
Bram Moolenaar <Bram@vim.org>
parents:
17789
diff
changeset
|
2304 * However, returns "p" when out of memory. |
7 | 2305 */ |
2306 char_u * | |
7817
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
2307 backslash_halve_save(char_u *p) |
7 | 2308 { |
2309 char_u *res; | |
2310 | |
2311 res = vim_strsave(p); | |
2312 if (res == NULL) | |
2313 return p; | |
2314 backslash_halve(res); | |
2315 return res; | |
2316 } |