Mercurial > vim
annotate src/charset.c @ 15051:f6b3fe138e84
Added tag v8.1.0536 for changeset c7628d6bc0dca6e1433055030bf3df428e96f376
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sun, 18 Nov 2018 12:30:07 +0100 |
| parents | 27b9a84395b5 |
| children | 1ec942f1b648 |
| rev | line source |
|---|---|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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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 | |
| 12 #ifdef FEAT_MBYTE | |
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Include wchar.h in charset.c for towupper().
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13 # if defined(HAVE_WCHAR_H) |
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14 # include <wchar.h> /* for towupper() and towlower() */ |
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15 # endif |
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16 static int win_nolbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp); |
| 7 | 17 #endif |
| 18 | |
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19 static unsigned nr2hex(unsigned c); |
| 7 | 20 |
| 21 static int chartab_initialized = FALSE; | |
| 22 | |
| 23 /* b_chartab[] is an array of 32 bytes, each bit representing one of the | |
| 24 * characters 0-255. */ | |
| 25 #define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7)) | |
| 26 #define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7)) | |
| 27 #define GET_CHARTAB(buf, c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7))) | |
| 28 | |
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29 /* table used below, see init_chartab() for an explanation */ |
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30 static char_u g_chartab[256]; |
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31 |
| 7 | 32 /* |
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33 * Flags for g_chartab[]. |
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34 */ |
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35 #define CT_CELL_MASK 0x07 /* mask: nr of display cells (1, 2 or 4) */ |
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36 #define CT_PRINT_CHAR 0x10 /* flag: set for printable chars */ |
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37 #define CT_ID_CHAR 0x20 /* flag: set for ID chars */ |
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38 #define CT_FNAME_CHAR 0x40 /* flag: set for file name chars */ |
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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 * EBCDIC: all chars below ' ' are not printable, all others are | |
| 92 * printable. | |
| 93 */ | |
| 94 c = 0; | |
| 95 while (c < ' ') | |
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96 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| 7 | 97 #ifdef EBCDIC |
| 98 while (c < 255) | |
| 99 #else | |
| 100 while (c <= '~') | |
| 101 #endif | |
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102 g_chartab[c++] = 1 + CT_PRINT_CHAR; |
| 7 | 103 #ifdef FEAT_FKMAP |
| 104 if (p_altkeymap) | |
| 105 { | |
| 106 while (c < YE) | |
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107 g_chartab[c++] = 1 + CT_PRINT_CHAR; |
| 7 | 108 } |
| 109 #endif | |
| 110 while (c < 256) | |
| 111 { | |
| 112 #ifdef FEAT_MBYTE | |
| 113 /* UTF-8: bytes 0xa0 - 0xff are printable (latin1) */ | |
| 114 if (enc_utf8 && c >= 0xa0) | |
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115 g_chartab[c++] = CT_PRINT_CHAR + 1; |
| 7 | 116 /* euc-jp characters starting with 0x8e are single width */ |
| 117 else if (enc_dbcs == DBCS_JPNU && c == 0x8e) | |
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118 g_chartab[c++] = CT_PRINT_CHAR + 1; |
| 7 | 119 /* other double-byte chars can be printable AND double-width */ |
| 120 else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2) | |
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121 g_chartab[c++] = CT_PRINT_CHAR + 2; |
| 7 | 122 else |
| 123 #endif | |
| 124 /* the rest is unprintable by default */ | |
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125 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| 7 | 126 } |
| 127 | |
| 128 #ifdef FEAT_MBYTE | |
| 129 /* Assume that every multi-byte char is a filename character. */ | |
| 130 for (c = 1; c < 256; ++c) | |
| 131 if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1) | |
| 132 || (enc_dbcs == DBCS_JPNU && c == 0x8e) | |
| 133 || (enc_utf8 && c >= 0xa0)) | |
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134 g_chartab[c] |= CT_FNAME_CHAR; |
| 7 | 135 #endif |
| 136 } | |
| 137 | |
| 138 /* | |
| 139 * Init word char flags all to FALSE | |
| 140 */ | |
| 141 vim_memset(buf->b_chartab, 0, (size_t)32); | |
| 142 #ifdef FEAT_MBYTE | |
| 227 | 143 if (enc_dbcs != 0) |
| 144 for (c = 0; c < 256; ++c) | |
| 145 { | |
| 146 /* double-byte characters are probably word characters */ | |
| 147 if (MB_BYTE2LEN(c) == 2) | |
| 148 SET_CHARTAB(buf, c); | |
| 149 } | |
| 7 | 150 #endif |
| 151 | |
| 152 #ifdef FEAT_LISP | |
| 153 /* | |
| 154 * In lisp mode the '-' character is included in keywords. | |
| 155 */ | |
| 156 if (buf->b_p_lisp) | |
| 157 SET_CHARTAB(buf, '-'); | |
| 158 #endif | |
| 159 | |
| 160 /* Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint' | |
| 161 * options Each option is a list of characters, character numbers or | |
| 162 * ranges, separated by commas, e.g.: "200-210,x,#-178,-" | |
| 163 */ | |
| 164 for (i = global ? 0 : 3; i <= 3; ++i) | |
| 165 { | |
| 166 if (i == 0) | |
| 167 p = p_isi; /* first round: 'isident' */ | |
| 168 else if (i == 1) | |
| 169 p = p_isp; /* second round: 'isprint' */ | |
| 170 else if (i == 2) | |
| 171 p = p_isf; /* third round: 'isfname' */ | |
| 172 else /* i == 3 */ | |
| 173 p = buf->b_p_isk; /* fourth round: 'iskeyword' */ | |
| 174 | |
| 175 while (*p) | |
| 176 { | |
| 177 tilde = FALSE; | |
| 178 do_isalpha = FALSE; | |
| 179 if (*p == '^' && p[1] != NUL) | |
| 180 { | |
| 181 tilde = TRUE; | |
| 182 ++p; | |
| 183 } | |
| 184 if (VIM_ISDIGIT(*p)) | |
| 185 c = getdigits(&p); | |
| 186 else | |
| 1955 | 187 #ifdef FEAT_MBYTE |
| 188 if (has_mbyte) | |
| 189 c = mb_ptr2char_adv(&p); | |
| 190 else | |
| 191 #endif | |
| 7 | 192 c = *p++; |
| 193 c2 = -1; | |
| 194 if (*p == '-' && p[1] != NUL) | |
| 195 { | |
| 196 ++p; | |
| 197 if (VIM_ISDIGIT(*p)) | |
| 198 c2 = getdigits(&p); | |
| 199 else | |
| 1979 | 200 #ifdef FEAT_MBYTE |
| 201 if (has_mbyte) | |
| 202 c2 = mb_ptr2char_adv(&p); | |
| 203 else | |
| 204 #endif | |
| 7 | 205 c2 = *p++; |
| 206 } | |
| 1979 | 207 if (c <= 0 || c >= 256 || (c2 < c && c2 != -1) || c2 >= 256 |
| 7 | 208 || !(*p == NUL || *p == ',')) |
| 209 return FAIL; | |
| 210 | |
| 211 if (c2 == -1) /* not a range */ | |
| 212 { | |
| 213 /* | |
| 214 * A single '@' (not "@-@"): | |
| 215 * Decide on letters being ID/printable/keyword chars with | |
| 216 * standard function isalpha(). This takes care of locale for | |
| 217 * single-byte characters). | |
| 218 */ | |
| 219 if (c == '@') | |
| 220 { | |
| 221 do_isalpha = TRUE; | |
| 222 c = 1; | |
| 223 c2 = 255; | |
| 224 } | |
| 225 else | |
| 226 c2 = c; | |
| 227 } | |
| 228 while (c <= c2) | |
| 229 { | |
| 1365 | 230 /* Use the MB_ functions here, because isalpha() doesn't |
| 231 * work properly when 'encoding' is "latin1" and the locale is | |
| 232 * "C". */ | |
| 233 if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c) | |
| 7 | 234 #ifdef FEAT_FKMAP |
| 235 || (p_altkeymap && (F_isalpha(c) || F_isdigit(c))) | |
| 236 #endif | |
| 237 ) | |
| 238 { | |
| 239 if (i == 0) /* (re)set ID flag */ | |
| 240 { | |
| 241 if (tilde) | |
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242 g_chartab[c] &= ~CT_ID_CHAR; |
| 7 | 243 else |
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244 g_chartab[c] |= CT_ID_CHAR; |
| 7 | 245 } |
| 246 else if (i == 1) /* (re)set printable */ | |
| 247 { | |
| 248 if ((c < ' ' | |
| 249 #ifndef EBCDIC | |
| 250 || c > '~' | |
| 251 #endif | |
| 252 #ifdef FEAT_FKMAP | |
| 253 || (p_altkeymap | |
| 254 && (F_isalpha(c) || F_isdigit(c))) | |
| 255 #endif | |
| 256 ) | |
| 257 #ifdef FEAT_MBYTE | |
| 258 /* For double-byte we keep the cell width, so | |
| 259 * that we can detect it from the first byte. */ | |
| 260 && !(enc_dbcs && MB_BYTE2LEN(c) == 2) | |
| 261 #endif | |
| 262 ) | |
| 263 { | |
| 264 if (tilde) | |
| 265 { | |
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266 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) |
| 7 | 267 + ((dy_flags & DY_UHEX) ? 4 : 2); |
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268 g_chartab[c] &= ~CT_PRINT_CHAR; |
| 7 | 269 } |
| 270 else | |
| 271 { | |
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272 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) + 1; |
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273 g_chartab[c] |= CT_PRINT_CHAR; |
| 7 | 274 } |
| 275 } | |
| 276 } | |
| 277 else if (i == 2) /* (re)set fname flag */ | |
| 278 { | |
| 279 if (tilde) | |
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280 g_chartab[c] &= ~CT_FNAME_CHAR; |
| 7 | 281 else |
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282 g_chartab[c] |= CT_FNAME_CHAR; |
| 7 | 283 } |
| 284 else /* i == 3 */ /* (re)set keyword flag */ | |
| 285 { | |
| 286 if (tilde) | |
| 287 RESET_CHARTAB(buf, c); | |
| 288 else | |
| 289 SET_CHARTAB(buf, c); | |
| 290 } | |
| 291 } | |
| 292 ++c; | |
| 293 } | |
| 4096 | 294 |
| 295 c = *p; | |
| 7 | 296 p = skip_to_option_part(p); |
| 4096 | 297 if (c == ',' && *p == NUL) |
| 298 /* Trailing comma is not allowed. */ | |
| 299 return FAIL; | |
| 7 | 300 } |
| 301 } | |
| 302 chartab_initialized = TRUE; | |
| 303 return OK; | |
| 304 } | |
| 305 | |
| 306 /* | |
| 307 * Translate any special characters in buf[bufsize] in-place. | |
| 308 * The result is a string with only printable characters, but if there is not | |
| 309 * enough room, not all characters will be translated. | |
| 310 */ | |
| 311 void | |
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312 trans_characters( |
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313 char_u *buf, |
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314 int bufsize) |
| 7 | 315 { |
| 316 int len; /* length of string needing translation */ | |
| 317 int room; /* room in buffer after string */ | |
| 318 char_u *trs; /* translated character */ | |
| 319 int trs_len; /* length of trs[] */ | |
| 320 | |
| 321 len = (int)STRLEN(buf); | |
| 322 room = bufsize - len; | |
| 323 while (*buf != 0) | |
| 324 { | |
| 325 # ifdef FEAT_MBYTE | |
| 326 /* Assume a multi-byte character doesn't need translation. */ | |
| 474 | 327 if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1) |
| 7 | 328 len -= trs_len; |
| 329 else | |
| 330 # endif | |
| 331 { | |
| 332 trs = transchar_byte(*buf); | |
| 333 trs_len = (int)STRLEN(trs); | |
| 334 if (trs_len > 1) | |
| 335 { | |
| 336 room -= trs_len - 1; | |
| 337 if (room <= 0) | |
| 338 return; | |
| 339 mch_memmove(buf + trs_len, buf + 1, (size_t)len); | |
| 340 } | |
| 341 mch_memmove(buf, trs, (size_t)trs_len); | |
| 342 --len; | |
| 343 } | |
| 344 buf += trs_len; | |
| 345 } | |
| 346 } | |
| 347 | |
| 1097 | 348 #if defined(FEAT_EVAL) || defined(FEAT_TITLE) || defined(FEAT_INS_EXPAND) \ |
| 349 || defined(PROTO) | |
| 7 | 350 /* |
| 351 * Translate a string into allocated memory, replacing special chars with | |
| 352 * printable chars. Returns NULL when out of memory. | |
| 353 */ | |
| 354 char_u * | |
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355 transstr(char_u *s) |
| 7 | 356 { |
| 357 char_u *res; | |
| 358 char_u *p; | |
| 359 #ifdef FEAT_MBYTE | |
| 360 int l, len, c; | |
| 361 char_u hexbuf[11]; | |
| 362 #endif | |
| 363 | |
| 364 #ifdef FEAT_MBYTE | |
| 365 if (has_mbyte) | |
| 366 { | |
| 367 /* Compute the length of the result, taking account of unprintable | |
| 368 * multi-byte characters. */ | |
| 369 len = 0; | |
| 370 p = s; | |
| 371 while (*p != NUL) | |
| 372 { | |
| 474 | 373 if ((l = (*mb_ptr2len)(p)) > 1) |
| 7 | 374 { |
| 375 c = (*mb_ptr2char)(p); | |
| 376 p += l; | |
| 377 if (vim_isprintc(c)) | |
| 378 len += l; | |
| 379 else | |
| 380 { | |
| 381 transchar_hex(hexbuf, c); | |
| 835 | 382 len += (int)STRLEN(hexbuf); |
| 7 | 383 } |
| 384 } | |
| 385 else | |
| 386 { | |
| 387 l = byte2cells(*p++); | |
| 388 if (l > 0) | |
| 389 len += l; | |
| 390 else | |
| 391 len += 4; /* illegal byte sequence */ | |
| 392 } | |
| 393 } | |
| 394 res = alloc((unsigned)(len + 1)); | |
| 395 } | |
| 396 else | |
| 397 #endif | |
| 398 res = alloc((unsigned)(vim_strsize(s) + 1)); | |
| 399 if (res != NULL) | |
| 400 { | |
| 401 *res = NUL; | |
| 402 p = s; | |
| 403 while (*p != NUL) | |
| 404 { | |
| 405 #ifdef FEAT_MBYTE | |
| 474 | 406 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 7 | 407 { |
| 408 c = (*mb_ptr2char)(p); | |
| 409 if (vim_isprintc(c)) | |
| 410 STRNCAT(res, p, l); /* append printable multi-byte char */ | |
| 411 else | |
| 412 transchar_hex(res + STRLEN(res), c); | |
| 413 p += l; | |
| 414 } | |
| 415 else | |
| 416 #endif | |
| 417 STRCAT(res, transchar_byte(*p++)); | |
| 418 } | |
| 419 } | |
| 420 return res; | |
| 421 } | |
| 422 #endif | |
| 423 | |
| 424 #if defined(FEAT_SYN_HL) || defined(FEAT_INS_EXPAND) || defined(PROTO) | |
| 425 /* | |
| 221 | 426 * Convert the string "str[orglen]" to do ignore-case comparing. Uses the |
| 427 * current locale. | |
| 130 | 428 * When "buf" is NULL returns an allocated string (NULL for out-of-memory). |
| 429 * Otherwise puts the result in "buf[buflen]". | |
| 7 | 430 */ |
| 431 char_u * | |
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432 str_foldcase( |
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433 char_u *str, |
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434 int orglen, |
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435 char_u *buf, |
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436 int buflen) |
| 7 | 437 { |
| 438 garray_T ga; | |
| 439 int i; | |
| 130 | 440 int len = orglen; |
| 7 | 441 |
| 442 #define GA_CHAR(i) ((char_u *)ga.ga_data)[i] | |
| 443 #define GA_PTR(i) ((char_u *)ga.ga_data + i) | |
| 130 | 444 #define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i]) |
| 445 #define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + i) | |
| 7 | 446 |
| 130 | 447 /* Copy "str" into "buf" or allocated memory, unmodified. */ |
| 448 if (buf == NULL) | |
| 449 { | |
| 450 ga_init2(&ga, 1, 10); | |
| 451 if (ga_grow(&ga, len + 1) == FAIL) | |
| 452 return NULL; | |
| 453 mch_memmove(ga.ga_data, str, (size_t)len); | |
| 454 ga.ga_len = len; | |
| 455 } | |
| 456 else | |
| 457 { | |
| 458 if (len >= buflen) /* Ugly! */ | |
| 459 len = buflen - 1; | |
| 460 mch_memmove(buf, str, (size_t)len); | |
| 461 } | |
| 462 if (buf == NULL) | |
| 463 GA_CHAR(len) = NUL; | |
| 464 else | |
| 465 buf[len] = NUL; | |
| 7 | 466 |
| 467 /* Make each character lower case. */ | |
| 468 i = 0; | |
| 130 | 469 while (STR_CHAR(i) != NUL) |
| 7 | 470 { |
| 471 #ifdef FEAT_MBYTE | |
| 130 | 472 if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1)) |
| 7 | 473 { |
| 474 if (enc_utf8) | |
| 475 { | |
| 1654 | 476 int c = utf_ptr2char(STR_PTR(i)); |
| 3263 | 477 int olen = utf_ptr2len(STR_PTR(i)); |
| 1654 | 478 int lc = utf_tolower(c); |
| 7 | 479 |
| 1654 | 480 /* Only replace the character when it is not an invalid |
| 481 * sequence (ASCII character or more than one byte) and | |
| 482 * utf_tolower() doesn't return the original character. */ | |
| 3263 | 483 if ((c < 0x80 || olen > 1) && c != lc) |
| 7 | 484 { |
| 3263 | 485 int nlen = utf_char2len(lc); |
| 7 | 486 |
| 487 /* If the byte length changes need to shift the following | |
| 488 * characters forward or backward. */ | |
| 3263 | 489 if (olen != nlen) |
| 7 | 490 { |
| 3263 | 491 if (nlen > olen) |
| 130 | 492 { |
| 3263 | 493 if (buf == NULL |
| 494 ? ga_grow(&ga, nlen - olen + 1) == FAIL | |
| 495 : len + nlen - olen >= buflen) | |
| 7 | 496 { |
| 497 /* out of memory, keep old char */ | |
| 498 lc = c; | |
| 3263 | 499 nlen = olen; |
| 7 | 500 } |
| 130 | 501 } |
| 3263 | 502 if (olen != nlen) |
| 7 | 503 { |
| 130 | 504 if (buf == NULL) |
| 505 { | |
| 3263 | 506 STRMOVE(GA_PTR(i) + nlen, GA_PTR(i) + olen); |
| 507 ga.ga_len += nlen - olen; | |
| 130 | 508 } |
| 509 else | |
| 510 { | |
| 3263 | 511 STRMOVE(buf + i + nlen, buf + i + olen); |
| 512 len += nlen - olen; | |
| 130 | 513 } |
| 7 | 514 } |
| 515 } | |
| 130 | 516 (void)utf_char2bytes(lc, STR_PTR(i)); |
| 7 | 517 } |
| 518 } | |
| 519 /* skip to next multi-byte char */ | |
| 474 | 520 i += (*mb_ptr2len)(STR_PTR(i)); |
| 7 | 521 } |
| 522 else | |
| 523 #endif | |
| 524 { | |
| 130 | 525 if (buf == NULL) |
| 526 GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i)); | |
| 527 else | |
| 528 buf[i] = TOLOWER_LOC(buf[i]); | |
| 7 | 529 ++i; |
| 530 } | |
| 531 } | |
| 532 | |
| 130 | 533 if (buf == NULL) |
| 534 return (char_u *)ga.ga_data; | |
| 535 return buf; | |
| 7 | 536 } |
| 537 #endif | |
| 538 | |
| 539 /* | |
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540 * Catch 22: g_chartab[] can't be initialized before the options are |
| 7 | 541 * initialized, and initializing options may cause transchar() to be called! |
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542 * When chartab_initialized == FALSE don't use g_chartab[]. |
| 7 | 543 * Does NOT work for multi-byte characters, c must be <= 255. |
| 544 * Also doesn't work for the first byte of a multi-byte, "c" must be a | |
| 545 * character! | |
| 546 */ | |
| 547 static char_u transchar_buf[7]; | |
| 548 | |
| 549 char_u * | |
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550 transchar(int c) |
| 7 | 551 { |
| 552 int i; | |
| 553 | |
| 554 i = 0; | |
| 555 if (IS_SPECIAL(c)) /* special key code, display as ~@ char */ | |
| 556 { | |
| 557 transchar_buf[0] = '~'; | |
| 558 transchar_buf[1] = '@'; | |
| 559 i = 2; | |
| 560 c = K_SECOND(c); | |
| 561 } | |
| 562 | |
| 563 if ((!chartab_initialized && ( | |
| 564 #ifdef EBCDIC | |
| 565 (c >= 64 && c < 255) | |
| 566 #else | |
| 567 (c >= ' ' && c <= '~') | |
| 568 #endif | |
| 569 #ifdef FEAT_FKMAP | |
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570 || (p_altkeymap && F_ischar(c)) |
| 7 | 571 #endif |
| 572 )) || (c < 256 && vim_isprintc_strict(c))) | |
| 573 { | |
| 574 /* printable character */ | |
| 575 transchar_buf[i] = c; | |
| 576 transchar_buf[i + 1] = NUL; | |
| 577 } | |
| 578 else | |
| 579 transchar_nonprint(transchar_buf + i, c); | |
| 580 return transchar_buf; | |
| 581 } | |
| 582 | |
| 583 #if defined(FEAT_MBYTE) || defined(PROTO) | |
| 584 /* | |
| 585 * Like transchar(), but called with a byte instead of a character. Checks | |
| 586 * for an illegal UTF-8 byte. | |
| 587 */ | |
| 588 char_u * | |
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589 transchar_byte(int c) |
| 7 | 590 { |
| 591 if (enc_utf8 && c >= 0x80) | |
| 592 { | |
| 593 transchar_nonprint(transchar_buf, c); | |
| 594 return transchar_buf; | |
| 595 } | |
| 596 return transchar(c); | |
| 597 } | |
| 598 #endif | |
| 599 | |
| 600 /* | |
| 601 * Convert non-printable character to two or more printable characters in | |
| 602 * "buf[]". "buf" needs to be able to hold five bytes. | |
| 603 * Does NOT work for multi-byte characters, c must be <= 255. | |
| 604 */ | |
| 605 void | |
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606 transchar_nonprint(char_u *buf, int c) |
| 7 | 607 { |
| 608 if (c == NL) | |
| 609 c = NUL; /* we use newline in place of a NUL */ | |
| 610 else if (c == CAR && get_fileformat(curbuf) == EOL_MAC) | |
| 611 c = NL; /* we use CR in place of NL in this case */ | |
| 612 | |
| 613 if (dy_flags & DY_UHEX) /* 'display' has "uhex" */ | |
| 614 transchar_hex(buf, c); | |
| 615 | |
| 616 #ifdef EBCDIC | |
| 617 /* For EBCDIC only the characters 0-63 and 255 are not printable */ | |
| 618 else if (CtrlChar(c) != 0 || c == DEL) | |
| 619 #else | |
| 620 else if (c <= 0x7f) /* 0x00 - 0x1f and 0x7f */ | |
| 621 #endif | |
| 622 { | |
| 623 buf[0] = '^'; | |
| 624 #ifdef EBCDIC | |
| 625 if (c == DEL) | |
| 626 buf[1] = '?'; /* DEL displayed as ^? */ | |
| 627 else | |
| 628 buf[1] = CtrlChar(c); | |
| 629 #else | |
| 630 buf[1] = c ^ 0x40; /* DEL displayed as ^? */ | |
| 631 #endif | |
| 632 | |
| 633 buf[2] = NUL; | |
| 634 } | |
| 635 #ifdef FEAT_MBYTE | |
| 636 else if (enc_utf8 && c >= 0x80) | |
| 637 { | |
| 638 transchar_hex(buf, c); | |
| 639 } | |
| 640 #endif | |
| 641 #ifndef EBCDIC | |
| 642 else if (c >= ' ' + 0x80 && c <= '~' + 0x80) /* 0xa0 - 0xfe */ | |
| 643 { | |
| 644 buf[0] = '|'; | |
| 645 buf[1] = c - 0x80; | |
| 646 buf[2] = NUL; | |
| 647 } | |
| 648 #else | |
| 649 else if (c < 64) | |
| 650 { | |
| 651 buf[0] = '~'; | |
| 652 buf[1] = MetaChar(c); | |
| 653 buf[2] = NUL; | |
| 654 } | |
| 655 #endif | |
| 656 else /* 0x80 - 0x9f and 0xff */ | |
| 657 { | |
| 658 /* | |
| 659 * TODO: EBCDIC I don't know what to do with this chars, so I display | |
| 660 * them as '~?' for now | |
| 661 */ | |
| 662 buf[0] = '~'; | |
| 663 #ifdef EBCDIC | |
| 664 buf[1] = '?'; /* 0xff displayed as ~? */ | |
| 665 #else | |
| 666 buf[1] = (c - 0x80) ^ 0x40; /* 0xff displayed as ~? */ | |
| 667 #endif | |
| 668 buf[2] = NUL; | |
| 669 } | |
| 670 } | |
| 671 | |
| 672 void | |
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673 transchar_hex(char_u *buf, int c) |
| 7 | 674 { |
| 675 int i = 0; | |
| 676 | |
| 677 buf[0] = '<'; | |
| 678 #ifdef FEAT_MBYTE | |
| 679 if (c > 255) | |
| 680 { | |
| 681 buf[++i] = nr2hex((unsigned)c >> 12); | |
| 682 buf[++i] = nr2hex((unsigned)c >> 8); | |
| 683 } | |
| 684 #endif | |
| 685 buf[++i] = nr2hex((unsigned)c >> 4); | |
| 1869 | 686 buf[++i] = nr2hex((unsigned)c); |
| 7 | 687 buf[++i] = '>'; |
| 688 buf[++i] = NUL; | |
| 689 } | |
| 690 | |
| 691 /* | |
| 692 * Convert the lower 4 bits of byte "c" to its hex character. | |
| 693 * Lower case letters are used to avoid the confusion of <F1> being 0xf1 or | |
| 694 * function key 1. | |
| 695 */ | |
| 1869 | 696 static unsigned |
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697 nr2hex(unsigned c) |
| 7 | 698 { |
| 699 if ((c & 0xf) <= 9) | |
| 700 return (c & 0xf) + '0'; | |
| 701 return (c & 0xf) - 10 + 'a'; | |
| 702 } | |
| 703 | |
| 704 /* | |
| 705 * Return number of display cells occupied by byte "b". | |
| 706 * Caller must make sure 0 <= b <= 255. | |
| 707 * For multi-byte mode "b" must be the first byte of a character. | |
| 708 * A TAB is counted as two cells: "^I". | |
| 709 * For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of | |
| 710 * cells depends on further bytes. | |
| 711 */ | |
| 712 int | |
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713 byte2cells(int b) |
| 7 | 714 { |
| 715 #ifdef FEAT_MBYTE | |
| 716 if (enc_utf8 && b >= 0x80) | |
| 717 return 0; | |
| 718 #endif | |
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719 return (g_chartab[b] & CT_CELL_MASK); |
| 7 | 720 } |
| 721 | |
| 722 /* | |
| 723 * Return number of display cells occupied by character "c". | |
| 724 * "c" can be a special key (negative number) in which case 3 or 4 is returned. | |
| 725 * A TAB is counted as two cells: "^I" or four: "<09>". | |
| 726 */ | |
| 727 int | |
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728 char2cells(int c) |
| 7 | 729 { |
| 730 if (IS_SPECIAL(c)) | |
| 731 return char2cells(K_SECOND(c)) + 2; | |
| 732 #ifdef FEAT_MBYTE | |
| 733 if (c >= 0x80) | |
| 734 { | |
| 735 /* UTF-8: above 0x80 need to check the value */ | |
| 736 if (enc_utf8) | |
| 737 return utf_char2cells(c); | |
| 738 /* DBCS: double-byte means double-width, except for euc-jp with first | |
| 739 * byte 0x8e */ | |
| 740 if (enc_dbcs != 0 && c >= 0x100) | |
| 741 { | |
| 742 if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e) | |
| 743 return 1; | |
| 744 return 2; | |
| 745 } | |
| 746 } | |
| 747 #endif | |
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748 return (g_chartab[c & 0xff] & CT_CELL_MASK); |
| 7 | 749 } |
| 750 | |
| 751 /* | |
| 752 * Return number of display cells occupied by character at "*p". | |
| 753 * A TAB is counted as two cells: "^I" or four: "<09>". | |
| 754 */ | |
| 755 int | |
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756 ptr2cells(char_u *p) |
| 7 | 757 { |
| 758 #ifdef FEAT_MBYTE | |
| 759 /* For UTF-8 we need to look at more bytes if the first byte is >= 0x80. */ | |
| 760 if (enc_utf8 && *p >= 0x80) | |
| 761 return utf_ptr2cells(p); | |
| 762 /* For DBCS we can tell the cell count from the first byte. */ | |
| 763 #endif | |
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764 return (g_chartab[*p] & CT_CELL_MASK); |
| 7 | 765 } |
| 766 | |
| 767 /* | |
| 3292 | 768 * Return the number of character cells string "s" will take on the screen, |
| 7 | 769 * counting TABs as two characters: "^I". |
| 770 */ | |
| 771 int | |
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772 vim_strsize(char_u *s) |
| 7 | 773 { |
| 774 return vim_strnsize(s, (int)MAXCOL); | |
| 775 } | |
| 776 | |
| 777 /* | |
| 3292 | 778 * Return the number of character cells string "s[len]" will take on the |
| 779 * screen, counting TABs as two characters: "^I". | |
| 7 | 780 */ |
| 781 int | |
|
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782 vim_strnsize(char_u *s, int len) |
| 7 | 783 { |
| 784 int size = 0; | |
| 785 | |
| 786 while (*s != NUL && --len >= 0) | |
| 787 { | |
| 788 #ifdef FEAT_MBYTE | |
| 789 if (has_mbyte) | |
| 790 { | |
| 474 | 791 int l = (*mb_ptr2len)(s); |
| 7 | 792 |
| 793 size += ptr2cells(s); | |
| 794 s += l; | |
| 795 len -= l - 1; | |
| 796 } | |
| 797 else | |
| 798 #endif | |
| 799 size += byte2cells(*s++); | |
| 800 } | |
| 801 return size; | |
| 802 } | |
| 803 | |
| 804 /* | |
| 805 * Return the number of characters 'c' will take on the screen, taking | |
| 806 * into account the size of a tab. | |
| 807 * Use a define to make it fast, this is used very often!!! | |
| 808 * Also see getvcol() below. | |
| 809 */ | |
| 810 | |
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811 #ifdef FEAT_VARTABS |
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812 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
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813 if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \ |
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814 { \ |
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815 return tabstop_padding(col, (buf)->b_p_ts, (buf)->b_p_vts_array); \ |
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816 } \ |
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817 else \ |
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818 return ptr2cells(p); |
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819 #else |
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820 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
| 7 | 821 if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \ |
| 822 { \ | |
| 823 int ts; \ | |
| 824 ts = (buf)->b_p_ts; \ | |
| 825 return (int)(ts - (col % ts)); \ | |
| 826 } \ | |
| 827 else \ | |
| 828 return ptr2cells(p); | |
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829 #endif |
| 7 | 830 |
| 831 int | |
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832 chartabsize(char_u *p, colnr_T col) |
| 7 | 833 { |
| 834 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col) | |
| 835 } | |
| 836 | |
| 837 #ifdef FEAT_LINEBREAK | |
| 838 static int | |
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839 win_chartabsize(win_T *wp, char_u *p, colnr_T col) |
| 7 | 840 { |
| 841 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col) | |
| 842 } | |
| 843 #endif | |
| 844 | |
| 845 /* | |
|
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846 * Return the number of characters the string 's' will take on the screen, |
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847 * taking into account the size of a tab. |
| 7 | 848 */ |
| 849 int | |
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850 linetabsize(char_u *s) |
| 7 | 851 { |
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852 return linetabsize_col(0, s); |
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853 } |
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854 |
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855 /* |
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856 * Like linetabsize(), but starting at column "startcol". |
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857 */ |
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858 int |
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859 linetabsize_col(int startcol, char_u *s) |
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860 { |
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861 colnr_T col = startcol; |
| 5995 | 862 char_u *line = s; /* pointer to start of line, for breakindent */ |
| 7 | 863 |
| 864 while (*s != NUL) | |
| 5995 | 865 col += lbr_chartabsize_adv(line, &s, col); |
| 7 | 866 return (int)col; |
| 867 } | |
| 868 | |
| 869 /* | |
| 870 * Like linetabsize(), but for a given window instead of the current one. | |
| 871 */ | |
| 872 int | |
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873 win_linetabsize(win_T *wp, char_u *line, colnr_T len) |
| 7 | 874 { |
| 875 colnr_T col = 0; | |
| 876 char_u *s; | |
| 877 | |
| 5995 | 878 for (s = line; *s != NUL && (len == MAXCOL || s < line + len); |
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879 MB_PTR_ADV(s)) |
| 5995 | 880 col += win_lbr_chartabsize(wp, line, s, col, NULL); |
| 7 | 881 return (int)col; |
| 882 } | |
| 883 | |
| 884 /* | |
| 42 | 885 * Return TRUE if 'c' is a normal identifier character: |
| 886 * Letters and characters from the 'isident' option. | |
| 7 | 887 */ |
| 888 int | |
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889 vim_isIDc(int c) |
| 7 | 890 { |
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891 return (c > 0 && c < 0x100 && (g_chartab[c] & CT_ID_CHAR)); |
| 7 | 892 } |
| 893 | |
| 894 /* | |
| 895 * return TRUE if 'c' is a keyword character: Letters and characters from | |
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896 * 'iskeyword' option for the current buffer. |
| 7 | 897 * For multi-byte characters mb_get_class() is used (builtin rules). |
| 898 */ | |
| 899 int | |
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900 vim_iswordc(int c) |
| 7 | 901 { |
| 4043 | 902 return vim_iswordc_buf(c, curbuf); |
| 903 } | |
| 904 | |
| 905 int | |
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906 vim_iswordc_buf(int c, buf_T *buf) |
| 4043 | 907 { |
| 7 | 908 if (c >= 0x100) |
| 909 { | |
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910 #ifdef FEAT_MBYTE |
| 7 | 911 if (enc_dbcs != 0) |
| 1869 | 912 return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2; |
| 7 | 913 if (enc_utf8) |
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914 return utf_class_buf(c, buf) >= 2; |
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915 #endif |
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916 return FALSE; |
| 7 | 917 } |
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918 return (c > 0 && GET_CHARTAB(buf, c) != 0); |
| 7 | 919 } |
| 920 | |
| 921 /* | |
| 922 * Just like vim_iswordc() but uses a pointer to the (multi-byte) character. | |
| 923 */ | |
| 924 int | |
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925 vim_iswordp(char_u *p) |
| 7 | 926 { |
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927 return vim_iswordp_buf(p, curbuf); |
| 7 | 928 } |
| 929 | |
| 930 int | |
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931 vim_iswordp_buf(char_u *p, buf_T *buf) |
| 7 | 932 { |
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933 int c = *p; |
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934 |
| 4080 | 935 #ifdef FEAT_MBYTE |
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936 if (has_mbyte && MB_BYTE2LEN(c) > 1) |
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937 c = (*mb_ptr2char)(p); |
| 4080 | 938 #endif |
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939 return vim_iswordc_buf(c, buf); |
| 7 | 940 } |
| 941 | |
| 942 /* | |
| 943 * return TRUE if 'c' is a valid file-name character | |
| 944 * Assume characters above 0x100 are valid (multi-byte). | |
| 945 */ | |
| 946 int | |
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947 vim_isfilec(int c) |
| 7 | 948 { |
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949 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_FNAME_CHAR))); |
| 7 | 950 } |
| 951 | |
| 952 /* | |
| 1369 | 953 * return TRUE if 'c' is a valid file-name character or a wildcard character |
| 954 * Assume characters above 0x100 are valid (multi-byte). | |
| 955 * Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]") | |
| 956 * returns false. | |
| 957 */ | |
| 958 int | |
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959 vim_isfilec_or_wc(int c) |
| 1369 | 960 { |
| 961 char_u buf[2]; | |
| 962 | |
| 963 buf[0] = (char_u)c; | |
| 964 buf[1] = NUL; | |
| 965 return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf); | |
| 966 } | |
| 967 | |
| 968 /* | |
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969 * Return TRUE if 'c' is a printable character. |
| 7 | 970 * Assume characters above 0x100 are printable (multi-byte), except for |
| 971 * Unicode. | |
| 972 */ | |
| 973 int | |
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974 vim_isprintc(int c) |
| 7 | 975 { |
| 976 #ifdef FEAT_MBYTE | |
| 977 if (enc_utf8 && c >= 0x100) | |
| 978 return utf_printable(c); | |
| 979 #endif | |
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980 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 981 } |
| 982 | |
| 983 /* | |
| 984 * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head | |
| 985 * byte of a double-byte character. | |
| 986 */ | |
| 987 int | |
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988 vim_isprintc_strict(int c) |
| 7 | 989 { |
| 990 #ifdef FEAT_MBYTE | |
| 991 if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1) | |
| 992 return FALSE; | |
| 993 if (enc_utf8 && c >= 0x100) | |
| 994 return utf_printable(c); | |
| 995 #endif | |
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996 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 997 } |
| 998 | |
| 999 /* | |
| 1000 * like chartabsize(), but also check for line breaks on the screen | |
| 1001 */ | |
| 1002 int | |
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1003 lbr_chartabsize( |
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1004 char_u *line UNUSED, /* start of the line */ |
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1005 unsigned char *s, |
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1006 colnr_T col) |
| 7 | 1007 { |
| 1008 #ifdef FEAT_LINEBREAK | |
| 5995 | 1009 if (!curwin->w_p_lbr && *p_sbr == NUL && !curwin->w_p_bri) |
| 7 | 1010 { |
| 1011 #endif | |
| 1012 #ifdef FEAT_MBYTE | |
| 1013 if (curwin->w_p_wrap) | |
| 1014 return win_nolbr_chartabsize(curwin, s, col, NULL); | |
| 1015 #endif | |
| 1016 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col) | |
| 1017 #ifdef FEAT_LINEBREAK | |
| 1018 } | |
| 5995 | 1019 return win_lbr_chartabsize(curwin, line == NULL ? s : line, s, col, NULL); |
| 7 | 1020 #endif |
| 1021 } | |
| 1022 | |
| 1023 /* | |
| 1024 * Call lbr_chartabsize() and advance the pointer. | |
| 1025 */ | |
| 1026 int | |
|
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1027 lbr_chartabsize_adv( |
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1028 char_u *line, /* start of the line */ |
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1029 char_u **s, |
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1030 colnr_T col) |
| 7 | 1031 { |
| 1032 int retval; | |
| 1033 | |
| 5995 | 1034 retval = lbr_chartabsize(line, *s, col); |
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1035 MB_PTR_ADV(*s); |
| 7 | 1036 return retval; |
| 1037 } | |
| 1038 | |
| 1039 /* | |
| 1040 * This function is used very often, keep it fast!!!! | |
| 1041 * | |
| 1042 * If "headp" not NULL, set *headp to the size of what we for 'showbreak' | |
| 1043 * string at start of line. Warning: *headp is only set if it's a non-zero | |
| 1044 * value, init to 0 before calling. | |
| 1045 */ | |
| 1046 int | |
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1047 win_lbr_chartabsize( |
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1048 win_T *wp, |
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1049 char_u *line UNUSED, /* start of the line */ |
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1050 char_u *s, |
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1051 colnr_T col, |
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1052 int *headp UNUSED) |
| 7 | 1053 { |
| 1054 #ifdef FEAT_LINEBREAK | |
| 1055 int c; | |
| 1056 int size; | |
| 1057 colnr_T col2; | |
| 6024 | 1058 colnr_T col_adj = 0; /* col + screen size of tab */ |
| 7 | 1059 colnr_T colmax; |
| 1060 int added; | |
| 1061 # ifdef FEAT_MBYTE | |
| 1062 int mb_added = 0; | |
| 1063 # else | |
| 1064 # define mb_added 0 | |
| 1065 # endif | |
| 1066 int numberextra; | |
| 1067 char_u *ps; | |
| 1068 int tab_corr = (*s == TAB); | |
| 236 | 1069 int n; |
| 7 | 1070 |
| 1071 /* | |
| 5995 | 1072 * No 'linebreak', 'showbreak' and 'breakindent': return quickly. |
| 7 | 1073 */ |
| 5995 | 1074 if (!wp->w_p_lbr && !wp->w_p_bri && *p_sbr == NUL) |
| 7 | 1075 #endif |
| 1076 { | |
| 1077 #ifdef FEAT_MBYTE | |
| 1078 if (wp->w_p_wrap) | |
| 1079 return win_nolbr_chartabsize(wp, s, col, headp); | |
| 1080 #endif | |
| 1081 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col) | |
| 1082 } | |
| 1083 | |
| 1084 #ifdef FEAT_LINEBREAK | |
| 1085 /* | |
| 1086 * First get normal size, without 'linebreak' | |
| 1087 */ | |
| 1088 size = win_chartabsize(wp, s, col); | |
| 1089 c = *s; | |
| 6024 | 1090 if (tab_corr) |
| 1091 col_adj = size - 1; | |
| 7 | 1092 |
| 1093 /* | |
| 1094 * If 'linebreak' set check at a blank before a non-blank if the line | |
| 1095 * needs a break here | |
| 1096 */ | |
| 1097 if (wp->w_p_lbr | |
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1098 && VIM_ISBREAK(c) |
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1099 && !VIM_ISBREAK((int)s[1]) |
| 7 | 1100 && wp->w_p_wrap |
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1101 && wp->w_width != 0) |
| 7 | 1102 { |
| 1103 /* | |
| 1104 * Count all characters from first non-blank after a blank up to next | |
| 1105 * non-blank after a blank. | |
| 1106 */ | |
| 1107 numberextra = win_col_off(wp); | |
| 1108 col2 = col; | |
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1109 colmax = (colnr_T)(wp->w_width - numberextra - col_adj); |
| 7 | 1110 if (col >= colmax) |
| 236 | 1111 { |
| 6024 | 1112 colmax += col_adj; |
| 1113 n = colmax + win_col_off2(wp); | |
| 236 | 1114 if (n > 0) |
| 6024 | 1115 colmax += (((col - colmax) / n) + 1) * n - col_adj; |
| 236 | 1116 } |
| 1117 | |
| 7 | 1118 for (;;) |
| 1119 { | |
| 1120 ps = s; | |
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1121 MB_PTR_ADV(s); |
| 7 | 1122 c = *s; |
| 1123 if (!(c != NUL | |
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1124 && (VIM_ISBREAK(c) |
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1125 || (!VIM_ISBREAK(c) |
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1126 && (col2 == col || !VIM_ISBREAK((int)*ps)))))) |
| 7 | 1127 break; |
| 1128 | |
| 1129 col2 += win_chartabsize(wp, s, col2); | |
| 1130 if (col2 >= colmax) /* doesn't fit */ | |
| 1131 { | |
| 6024 | 1132 size = colmax - col + col_adj; |
| 7 | 1133 tab_corr = FALSE; |
| 1134 break; | |
| 1135 } | |
| 1136 } | |
| 1137 } | |
| 1138 # ifdef FEAT_MBYTE | |
| 1139 else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1 | |
| 1140 && wp->w_p_wrap && in_win_border(wp, col)) | |
| 1141 { | |
| 1142 ++size; /* Count the ">" in the last column. */ | |
| 1143 mb_added = 1; | |
| 1144 } | |
| 1145 # endif | |
| 1146 | |
| 1147 /* | |
| 5995 | 1148 * May have to add something for 'breakindent' and/or 'showbreak' |
| 1149 * string at start of line. | |
| 7 | 1150 * Set *headp to the size of what we add. |
| 1151 */ | |
| 1152 added = 0; | |
| 5995 | 1153 if ((*p_sbr != NUL || wp->w_p_bri) && wp->w_p_wrap && col != 0) |
| 7 | 1154 { |
| 6503 | 1155 colnr_T sbrlen = 0; |
| 1156 int numberwidth = win_col_off(wp); | |
| 1157 | |
| 1158 numberextra = numberwidth; | |
| 7 | 1159 col += numberextra + mb_added; |
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1160 if (col >= (colnr_T)wp->w_width) |
| 7 | 1161 { |
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1162 col -= wp->w_width; |
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1163 numberextra = wp->w_width - (numberextra - win_col_off2(wp)); |
| 6503 | 1164 if (col >= numberextra && numberextra > 0) |
| 6312 | 1165 col %= numberextra; |
| 6288 | 1166 if (*p_sbr != NUL) |
| 1167 { | |
| 6503 | 1168 sbrlen = (colnr_T)MB_CHARLEN(p_sbr); |
| 6288 | 1169 if (col >= sbrlen) |
| 1170 col -= sbrlen; | |
| 1171 } | |
| 6503 | 1172 if (col >= numberextra && numberextra > 0) |
| 7 | 1173 col = col % numberextra; |
| 6503 | 1174 else if (col > 0 && numberextra > 0) |
| 1175 col += numberwidth - win_col_off2(wp); | |
| 1176 | |
| 1177 numberwidth -= win_col_off2(wp); | |
| 7 | 1178 } |
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1179 if (col == 0 || col + size + sbrlen > (colnr_T)wp->w_width) |
| 7 | 1180 { |
| 5995 | 1181 added = 0; |
| 1182 if (*p_sbr != NUL) | |
| 6503 | 1183 { |
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1184 if (size + sbrlen + numberwidth > (colnr_T)wp->w_width) |
| 6503 | 1185 { |
| 1186 /* calculate effective window width */ | |
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1187 int width = (colnr_T)wp->w_width - sbrlen - numberwidth; |
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1188 int prev_width = col ? ((colnr_T)wp->w_width - (sbrlen + col)) : 0; |
| 6503 | 1189 if (width == 0) |
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1190 width = (colnr_T)wp->w_width; |
| 6503 | 1191 added += ((size - prev_width) / width) * vim_strsize(p_sbr); |
| 1192 if ((size - prev_width) % width) | |
| 1193 /* wrapped, add another length of 'sbr' */ | |
| 1194 added += vim_strsize(p_sbr); | |
| 1195 } | |
| 1196 else | |
| 1197 added += vim_strsize(p_sbr); | |
| 1198 } | |
| 5995 | 1199 if (wp->w_p_bri) |
| 1200 added += get_breakindent_win(wp, line); | |
| 1201 | |
| 6160 | 1202 size += added; |
| 7 | 1203 if (col != 0) |
| 1204 added = 0; | |
| 1205 } | |
| 1206 } | |
| 1207 if (headp != NULL) | |
| 1208 *headp = added + mb_added; | |
| 1209 return size; | |
| 1210 #endif | |
| 1211 } | |
| 1212 | |
| 1213 #if defined(FEAT_MBYTE) || defined(PROTO) | |
| 1214 /* | |
| 1215 * Like win_lbr_chartabsize(), except that we know 'linebreak' is off and | |
| 1216 * 'wrap' is on. This means we need to check for a double-byte character that | |
| 1217 * doesn't fit at the end of the screen line. | |
| 1218 */ | |
| 1219 static int | |
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1220 win_nolbr_chartabsize( |
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1221 win_T *wp, |
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1222 char_u *s, |
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1223 colnr_T col, |
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1224 int *headp) |
| 7 | 1225 { |
| 1226 int n; | |
| 1227 | |
| 1228 if (*s == TAB && (!wp->w_p_list || lcs_tab1)) | |
| 1229 { | |
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1230 # ifdef FEAT_VARTABS |
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1231 return tabstop_padding(col, wp->w_buffer->b_p_ts, |
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1232 wp->w_buffer->b_p_vts_array); |
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1233 # else |
| 7 | 1234 n = wp->w_buffer->b_p_ts; |
| 1235 return (int)(n - (col % n)); | |
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1236 # endif |
| 7 | 1237 } |
| 1238 n = ptr2cells(s); | |
| 1239 /* Add one cell for a double-width character in the last column of the | |
| 1240 * window, displayed with a ">". */ | |
| 1241 if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col)) | |
| 1242 { | |
| 1243 if (headp != NULL) | |
| 1244 *headp = 1; | |
| 1245 return 3; | |
| 1246 } | |
| 1247 return n; | |
| 1248 } | |
| 1249 | |
| 1250 /* | |
| 1251 * Return TRUE if virtual column "vcol" is in the rightmost column of window | |
| 1252 * "wp". | |
| 1253 */ | |
| 1254 int | |
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1255 in_win_border(win_T *wp, colnr_T vcol) |
| 7 | 1256 { |
| 1869 | 1257 int width1; /* width of first line (after line number) */ |
| 1258 int width2; /* width of further lines */ | |
| 7 | 1259 |
| 1260 if (wp->w_width == 0) /* there is no border */ | |
| 1261 return FALSE; | |
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1262 width1 = wp->w_width - win_col_off(wp); |
| 1869 | 1263 if ((int)vcol < width1 - 1) |
| 7 | 1264 return FALSE; |
| 1869 | 1265 if ((int)vcol == width1 - 1) |
| 7 | 1266 return TRUE; |
| 1267 width2 = width1 + win_col_off2(wp); | |
| 1970 | 1268 if (width2 <= 0) |
| 1269 return FALSE; | |
| 7 | 1270 return ((vcol - width1) % width2 == width2 - 1); |
| 1271 } | |
| 1272 #endif /* FEAT_MBYTE */ | |
| 1273 | |
| 1274 /* | |
| 1275 * Get virtual column number of pos. | |
| 1276 * start: on the first position of this character (TAB, ctrl) | |
| 1277 * cursor: where the cursor is on this character (first char, except for TAB) | |
| 1278 * end: on the last position of this character (TAB, ctrl) | |
| 1279 * | |
| 1280 * This is used very often, keep it fast! | |
| 1281 */ | |
| 1282 void | |
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1283 getvcol( |
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1284 win_T *wp, |
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1285 pos_T *pos, |
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1286 colnr_T *start, |
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1287 colnr_T *cursor, |
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1288 colnr_T *end) |
| 7 | 1289 { |
| 1290 colnr_T vcol; | |
| 1291 char_u *ptr; /* points to current char */ | |
| 1292 char_u *posptr; /* points to char at pos->col */ | |
| 5995 | 1293 char_u *line; /* start of the line */ |
| 7 | 1294 int incr; |
| 1295 int head; | |
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1296 #ifdef FEAT_VARTABS |
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1297 int *vts = wp->w_buffer->b_p_vts_array; |
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1298 #endif |
| 7 | 1299 int ts = wp->w_buffer->b_p_ts; |
| 1300 int c; | |
| 1301 | |
| 1302 vcol = 0; | |
| 5995 | 1303 line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
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1304 if (pos->col == MAXCOL) |
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1305 posptr = NULL; /* continue until the NUL */ |
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1306 else |
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1307 { |
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1308 /* Special check for an empty line, which can happen on exit, when |
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1309 * ml_get_buf() always returns an empty string. */ |
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1310 if (*ptr == NUL) |
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1311 pos->col = 0; |
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1312 posptr = ptr + pos->col; |
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1313 #ifdef FEAT_MBYTE |
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|
1314 if (has_mbyte) |
|
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|
1315 /* always start on the first byte */ |
|
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1316 posptr -= (*mb_head_off)(line, posptr); |
|
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1317 #endif |
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|
1318 } |
| 7 | 1319 |
| 1320 /* | |
| 1321 * This function is used very often, do some speed optimizations. | |
| 5995 | 1322 * When 'list', 'linebreak', 'showbreak' and 'breakindent' are not set |
| 1323 * use a simple loop. | |
| 7 | 1324 * Also use this when 'list' is set but tabs take their normal size. |
| 1325 */ | |
| 1326 if ((!wp->w_p_list || lcs_tab1 != NUL) | |
| 1327 #ifdef FEAT_LINEBREAK | |
| 5995 | 1328 && !wp->w_p_lbr && *p_sbr == NUL && !wp->w_p_bri |
| 7 | 1329 #endif |
| 1330 ) | |
| 1331 { | |
| 1332 #ifndef FEAT_MBYTE | |
| 1333 head = 0; | |
| 1334 #endif | |
| 1335 for (;;) | |
| 1336 { | |
| 1337 #ifdef FEAT_MBYTE | |
| 1338 head = 0; | |
| 1339 #endif | |
| 1340 c = *ptr; | |
| 1341 /* make sure we don't go past the end of the line */ | |
| 1342 if (c == NUL) | |
| 1343 { | |
| 1344 incr = 1; /* NUL at end of line only takes one column */ | |
| 1345 break; | |
| 1346 } | |
| 1347 /* A tab gets expanded, depending on the current column */ | |
| 1348 if (c == TAB) | |
|
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1349 #ifdef FEAT_VARTABS |
|
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1350 incr = tabstop_padding(vcol, ts, vts); |
|
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|
1351 #else |
| 7 | 1352 incr = ts - (vcol % ts); |
|
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1353 #endif |
| 7 | 1354 else |
| 1355 { | |
| 1356 #ifdef FEAT_MBYTE | |
| 1357 if (has_mbyte) | |
| 1358 { | |
| 1359 /* For utf-8, if the byte is >= 0x80, need to look at | |
| 1360 * further bytes to find the cell width. */ | |
| 1361 if (enc_utf8 && c >= 0x80) | |
| 1362 incr = utf_ptr2cells(ptr); | |
| 1363 else | |
|
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1364 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1365 |
| 1366 /* If a double-cell char doesn't fit at the end of a line | |
| 1367 * it wraps to the next line, it's like this char is three | |
| 1368 * cells wide. */ | |
| 1546 | 1369 if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1 |
| 1370 && in_win_border(wp, vcol)) | |
| 7 | 1371 { |
| 1372 ++incr; | |
| 1373 head = 1; | |
| 1374 } | |
| 1375 } | |
| 1376 else | |
| 1377 #endif | |
|
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1378 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1379 } |
| 1380 | |
|
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|
1381 if (posptr != NULL && ptr >= posptr) /* character at pos->col */ |
| 7 | 1382 break; |
| 1383 | |
| 1384 vcol += incr; | |
|
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1385 MB_PTR_ADV(ptr); |
| 7 | 1386 } |
| 1387 } | |
| 1388 else | |
| 1389 { | |
| 1390 for (;;) | |
| 1391 { | |
| 1392 /* A tab gets expanded, depending on the current column */ | |
| 1393 head = 0; | |
| 5995 | 1394 incr = win_lbr_chartabsize(wp, line, ptr, vcol, &head); |
| 7 | 1395 /* make sure we don't go past the end of the line */ |
| 1396 if (*ptr == NUL) | |
| 1397 { | |
| 1398 incr = 1; /* NUL at end of line only takes one column */ | |
| 1399 break; | |
| 1400 } | |
| 1401 | |
|
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1402 if (posptr != NULL && ptr >= posptr) /* character at pos->col */ |
| 7 | 1403 break; |
| 1404 | |
| 1405 vcol += incr; | |
|
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1406 MB_PTR_ADV(ptr); |
| 7 | 1407 } |
| 1408 } | |
| 1409 if (start != NULL) | |
| 1410 *start = vcol + head; | |
| 1411 if (end != NULL) | |
| 1412 *end = vcol + incr - 1; | |
| 1413 if (cursor != NULL) | |
| 1414 { | |
| 1415 if (*ptr == TAB | |
| 1416 && (State & NORMAL) | |
| 1417 && !wp->w_p_list | |
| 1418 && !virtual_active() | |
|
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1419 && !(VIsual_active |
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1420 && (*p_sel == 'e' || LTOREQ_POS(*pos, VIsual))) |
| 7 | 1421 ) |
| 1422 *cursor = vcol + incr - 1; /* cursor at end */ | |
| 1423 else | |
| 1424 *cursor = vcol + head; /* cursor at start */ | |
| 1425 } | |
| 1426 } | |
| 1427 | |
| 1428 /* | |
| 1429 * Get virtual cursor column in the current window, pretending 'list' is off. | |
| 1430 */ | |
| 1431 colnr_T | |
|
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1432 getvcol_nolist(pos_T *posp) |
| 7 | 1433 { |
| 1434 int list_save = curwin->w_p_list; | |
| 1435 colnr_T vcol; | |
| 1436 | |
| 1437 curwin->w_p_list = FALSE; | |
|
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1438 #ifdef FEAT_VIRTUALEDIT |
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|
1439 if (posp->coladd) |
|
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|
1440 getvvcol(curwin, posp, NULL, &vcol, NULL); |
|
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1441 else |
|
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1442 #endif |
|
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1443 getvcol(curwin, posp, NULL, &vcol, NULL); |
| 7 | 1444 curwin->w_p_list = list_save; |
| 1445 return vcol; | |
| 1446 } | |
| 1447 | |
| 1448 #if defined(FEAT_VIRTUALEDIT) || defined(PROTO) | |
| 1449 /* | |
| 1450 * Get virtual column in virtual mode. | |
| 1451 */ | |
| 1452 void | |
|
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1453 getvvcol( |
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1454 win_T *wp, |
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1455 pos_T *pos, |
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1456 colnr_T *start, |
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1457 colnr_T *cursor, |
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|
1458 colnr_T *end) |
| 7 | 1459 { |
| 1460 colnr_T col; | |
| 1461 colnr_T coladd; | |
| 1462 colnr_T endadd; | |
| 1463 # ifdef FEAT_MBYTE | |
| 1464 char_u *ptr; | |
| 1465 # endif | |
| 1466 | |
| 1467 if (virtual_active()) | |
| 1468 { | |
| 1469 /* For virtual mode, only want one value */ | |
| 1470 getvcol(wp, pos, &col, NULL, NULL); | |
| 1471 | |
| 1472 coladd = pos->coladd; | |
| 1473 endadd = 0; | |
| 1474 # ifdef FEAT_MBYTE | |
| 1475 /* Cannot put the cursor on part of a wide character. */ | |
| 1476 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); | |
| 1869 | 1477 if (pos->col < (colnr_T)STRLEN(ptr)) |
| 7 | 1478 { |
| 1479 int c = (*mb_ptr2char)(ptr + pos->col); | |
| 1480 | |
| 1481 if (c != TAB && vim_isprintc(c)) | |
| 1482 { | |
| 1869 | 1483 endadd = (colnr_T)(char2cells(c) - 1); |
| 557 | 1484 if (coladd > endadd) /* past end of line */ |
| 1485 endadd = 0; | |
| 7 | 1486 else |
| 1487 coladd = 0; | |
| 1488 } | |
| 1489 } | |
| 1490 # endif | |
| 1491 col += coladd; | |
| 1492 if (start != NULL) | |
| 1493 *start = col; | |
| 1494 if (cursor != NULL) | |
| 1495 *cursor = col; | |
| 1496 if (end != NULL) | |
| 1497 *end = col + endadd; | |
| 1498 } | |
| 1499 else | |
| 1500 getvcol(wp, pos, start, cursor, end); | |
| 1501 } | |
| 1502 #endif | |
| 1503 | |
| 1504 /* | |
| 1505 * Get the leftmost and rightmost virtual column of pos1 and pos2. | |
| 1506 * Used for Visual block mode. | |
| 1507 */ | |
| 1508 void | |
|
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1509 getvcols( |
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|
1510 win_T *wp, |
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1511 pos_T *pos1, |
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1512 pos_T *pos2, |
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1513 colnr_T *left, |
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1514 colnr_T *right) |
| 7 | 1515 { |
| 1516 colnr_T from1, from2, to1, to2; | |
| 1517 | |
|
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1518 if (LT_POSP(pos1, pos2)) |
| 7 | 1519 { |
| 1520 getvvcol(wp, pos1, &from1, NULL, &to1); | |
| 1521 getvvcol(wp, pos2, &from2, NULL, &to2); | |
| 1522 } | |
| 1523 else | |
| 1524 { | |
| 1525 getvvcol(wp, pos2, &from1, NULL, &to1); | |
| 1526 getvvcol(wp, pos1, &from2, NULL, &to2); | |
| 1527 } | |
| 1528 if (from2 < from1) | |
| 1529 *left = from2; | |
| 1530 else | |
| 1531 *left = from1; | |
| 1532 if (to2 > to1) | |
| 1533 { | |
| 1534 if (*p_sel == 'e' && from2 - 1 >= to1) | |
| 1535 *right = from2 - 1; | |
| 1536 else | |
| 1537 *right = to2; | |
| 1538 } | |
| 1539 else | |
| 1540 *right = to1; | |
| 1541 } | |
| 1542 | |
| 1543 /* | |
| 1544 * skipwhite: skip over ' ' and '\t'. | |
| 1545 */ | |
| 1546 char_u * | |
|
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1547 skipwhite(char_u *q) |
| 7 | 1548 { |
| 1687 | 1549 char_u *p = q; |
| 1550 | |
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1551 while (VIM_ISWHITE(*p)) /* skip to next non-white */ |
| 7 | 1552 ++p; |
| 1553 return p; | |
| 1554 } | |
| 1555 | |
| 1556 /* | |
|
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1557 * getwhitecols: return the number of whitespace |
|
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1558 * columns (bytes) at the start of a given line |
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1559 */ |
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1560 int |
|
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1561 getwhitecols_curline() |
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1562 { |
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1563 return getwhitecols(ml_get_curline()); |
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1564 } |
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1565 |
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1566 int |
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1567 getwhitecols(char_u *p) |
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1568 { |
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1569 return skipwhite(p) - p; |
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1570 } |
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1571 |
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1572 /* |
| 293 | 1573 * skip over digits |
| 7 | 1574 */ |
| 1575 char_u * | |
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1576 skipdigits(char_u *q) |
| 7 | 1577 { |
| 1687 | 1578 char_u *p = q; |
| 1579 | |
| 7 | 1580 while (VIM_ISDIGIT(*p)) /* skip to next non-digit */ |
| 1581 ++p; | |
| 1582 return p; | |
| 1583 } | |
| 1584 | |
| 741 | 1585 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO) |
| 301 | 1586 /* |
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1587 * skip over binary digits |
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1588 */ |
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1589 char_u * |
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1590 skipbin(char_u *q) |
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1591 { |
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1592 char_u *p = q; |
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1593 |
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1594 while (vim_isbdigit(*p)) /* skip to next non-digit */ |
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1595 ++p; |
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1596 return p; |
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1597 } |
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1598 |
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1599 /* |
| 301 | 1600 * skip over digits and hex characters |
| 1601 */ | |
| 1602 char_u * | |
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1603 skiphex(char_u *q) |
| 301 | 1604 { |
| 1687 | 1605 char_u *p = q; |
| 1606 | |
| 301 | 1607 while (vim_isxdigit(*p)) /* skip to next non-digit */ |
| 1608 ++p; | |
| 1609 return p; | |
| 1610 } | |
| 1611 #endif | |
| 1612 | |
| 293 | 1613 /* |
|
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1614 * skip to bin digit (or NUL after the string) |
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1615 */ |
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1616 char_u * |
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1617 skiptobin(char_u *q) |
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1618 { |
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1619 char_u *p = q; |
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1620 |
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1621 while (*p != NUL && !vim_isbdigit(*p)) /* skip to next digit */ |
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1622 ++p; |
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1623 return p; |
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1624 } |
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1625 |
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1626 /* |
| 293 | 1627 * skip to digit (or NUL after the string) |
| 1628 */ | |
| 1629 char_u * | |
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1630 skiptodigit(char_u *q) |
| 293 | 1631 { |
| 1687 | 1632 char_u *p = q; |
| 1633 | |
| 293 | 1634 while (*p != NUL && !VIM_ISDIGIT(*p)) /* skip to next digit */ |
| 1635 ++p; | |
| 1636 return p; | |
| 1637 } | |
| 1638 | |
| 1639 /* | |
| 1640 * skip to hex character (or NUL after the string) | |
| 1641 */ | |
| 1642 char_u * | |
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1643 skiptohex(char_u *q) |
| 293 | 1644 { |
| 1687 | 1645 char_u *p = q; |
| 1646 | |
| 293 | 1647 while (*p != NUL && !vim_isxdigit(*p)) /* skip to next digit */ |
| 1648 ++p; | |
| 1649 return p; | |
| 1650 } | |
| 1651 | |
| 7 | 1652 /* |
| 1653 * Variant of isdigit() that can handle characters > 0x100. | |
| 1654 * We don't use isdigit() here, because on some systems it also considers | |
| 1655 * superscript 1 to be a digit. | |
| 1656 * Use the VIM_ISDIGIT() macro for simple arguments. | |
| 1657 */ | |
| 1658 int | |
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1659 vim_isdigit(int c) |
| 7 | 1660 { |
| 1661 return (c >= '0' && c <= '9'); | |
| 1662 } | |
| 1663 | |
| 1664 /* | |
| 1665 * Variant of isxdigit() that can handle characters > 0x100. | |
| 1666 * We don't use isxdigit() here, because on some systems it also considers | |
| 1667 * superscript 1 to be a digit. | |
| 1668 */ | |
| 1669 int | |
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1670 vim_isxdigit(int c) |
| 7 | 1671 { |
| 1672 return (c >= '0' && c <= '9') | |
| 1673 || (c >= 'a' && c <= 'f') | |
| 1674 || (c >= 'A' && c <= 'F'); | |
| 1675 } | |
| 1676 | |
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1677 /* |
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1678 * Corollary of vim_isdigit and vim_isxdigit() that can handle |
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1679 * characters > 0x100. |
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1680 */ |
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1681 int |
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1682 vim_isbdigit(int c) |
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1683 { |
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1684 return (c == '0' || c == '1'); |
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1685 } |
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1686 |
| 492 | 1687 #if defined(FEAT_MBYTE) || defined(PROTO) |
| 1688 /* | |
| 1689 * Vim's own character class functions. These exist because many library | |
| 1690 * islower()/toupper() etc. do not work properly: they crash when used with | |
| 1691 * invalid values or can't handle latin1 when the locale is C. | |
| 1692 * Speed is most important here. | |
| 1693 */ | |
| 1694 #define LATIN1LOWER 'l' | |
| 1695 #define LATIN1UPPER 'U' | |
| 1696 | |
| 497 | 1697 static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll"; |
| 3533 | 1698 static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xf7\xd8\xd9\xda\xdb\xdc\xdd\xde\xff"; |
| 1699 static char_u latin1lower[257] = " !\"#$%&'()*+,-./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 | 1700 |
| 1701 int | |
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1702 vim_islower(int c) |
| 492 | 1703 { |
| 1704 if (c <= '@') | |
| 1705 return FALSE; | |
| 1706 if (c >= 0x80) | |
| 1707 { | |
| 1708 if (enc_utf8) | |
| 1709 return utf_islower(c); | |
| 1710 if (c >= 0x100) | |
| 1711 { | |
| 1712 #ifdef HAVE_ISWLOWER | |
| 1713 if (has_mbyte) | |
| 1714 return iswlower(c); | |
| 1715 #endif | |
| 1716 /* islower() can't handle these chars and may crash */ | |
| 1717 return FALSE; | |
| 1718 } | |
| 1719 if (enc_latin1like) | |
| 1720 return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER; | |
| 1721 } | |
| 1722 return islower(c); | |
| 1723 } | |
| 1724 | |
| 1725 int | |
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1726 vim_isupper(int c) |
| 492 | 1727 { |
| 1728 if (c <= '@') | |
| 1729 return FALSE; | |
| 1730 if (c >= 0x80) | |
| 1731 { | |
| 1732 if (enc_utf8) | |
| 1733 return utf_isupper(c); | |
| 1734 if (c >= 0x100) | |
| 1735 { | |
| 1736 #ifdef HAVE_ISWUPPER | |
| 1737 if (has_mbyte) | |
| 1738 return iswupper(c); | |
| 1739 #endif | |
| 1740 /* islower() can't handle these chars and may crash */ | |
| 1741 return FALSE; | |
| 1742 } | |
| 1743 if (enc_latin1like) | |
| 1744 return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER; | |
| 1745 } | |
| 1746 return isupper(c); | |
| 1747 } | |
| 1748 | |
| 1749 int | |
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1750 vim_toupper(int c) |
| 492 | 1751 { |
| 1752 if (c <= '@') | |
| 1753 return c; | |
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1754 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
| 492 | 1755 { |
| 1756 if (enc_utf8) | |
| 1757 return utf_toupper(c); | |
| 1758 if (c >= 0x100) | |
| 1759 { | |
| 1760 #ifdef HAVE_TOWUPPER | |
| 1761 if (has_mbyte) | |
| 1762 return towupper(c); | |
| 1763 #endif | |
| 1764 /* toupper() can't handle these chars and may crash */ | |
| 1765 return c; | |
| 1766 } | |
| 1767 if (enc_latin1like) | |
| 1768 return latin1upper[c]; | |
| 1769 } | |
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1770 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
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1771 return TOUPPER_ASC(c); |
| 492 | 1772 return TOUPPER_LOC(c); |
| 1773 } | |
| 1774 | |
| 1775 int | |
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1776 vim_tolower(int c) |
| 492 | 1777 { |
| 1778 if (c <= '@') | |
| 1779 return c; | |
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1780 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
| 492 | 1781 { |
| 1782 if (enc_utf8) | |
| 1783 return utf_tolower(c); | |
| 1784 if (c >= 0x100) | |
| 1785 { | |
| 1786 #ifdef HAVE_TOWLOWER | |
| 1787 if (has_mbyte) | |
| 1788 return towlower(c); | |
| 1789 #endif | |
| 1790 /* tolower() can't handle these chars and may crash */ | |
| 1791 return c; | |
| 1792 } | |
| 1793 if (enc_latin1like) | |
| 1794 return latin1lower[c]; | |
| 1795 } | |
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1796 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
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1797 return TOLOWER_ASC(c); |
| 492 | 1798 return TOLOWER_LOC(c); |
| 1799 } | |
| 1800 #endif | |
| 1801 | |
| 7 | 1802 /* |
| 1803 * skiptowhite: skip over text until ' ' or '\t' or NUL. | |
| 1804 */ | |
| 1805 char_u * | |
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1806 skiptowhite(char_u *p) |
| 7 | 1807 { |
| 1808 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1809 ++p; | |
| 1810 return p; | |
| 1811 } | |
| 1812 | |
| 1813 /* | |
| 1814 * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars | |
| 1815 */ | |
| 1816 char_u * | |
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1817 skiptowhite_esc(char_u *p) |
| 7 | 1818 { |
| 1819 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1820 { | |
| 1821 if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL) | |
| 1822 ++p; | |
| 1823 ++p; | |
| 1824 } | |
| 1825 return p; | |
| 1826 } | |
| 1827 | |
| 1828 /* | |
| 1829 * Getdigits: Get a number from a string and skip over it. | |
| 1830 * Note: the argument is a pointer to a char_u pointer! | |
| 1831 */ | |
| 1832 long | |
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1833 getdigits(char_u **pp) |
| 7 | 1834 { |
| 1835 char_u *p; | |
| 1836 long retval; | |
| 1837 | |
| 1838 p = *pp; | |
| 1839 retval = atol((char *)p); | |
| 1840 if (*p == '-') /* skip negative sign */ | |
| 1841 ++p; | |
| 1842 p = skipdigits(p); /* skip to next non-digit */ | |
| 1843 *pp = p; | |
| 1844 return retval; | |
| 1845 } | |
| 1846 | |
| 1847 /* | |
| 1848 * Return TRUE if "lbuf" is empty or only contains blanks. | |
| 1849 */ | |
| 1850 int | |
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1851 vim_isblankline(char_u *lbuf) |
| 7 | 1852 { |
| 1853 char_u *p; | |
| 1854 | |
| 1855 p = skipwhite(lbuf); | |
| 1856 return (*p == NUL || *p == '\r' || *p == '\n'); | |
| 1857 } | |
| 1858 | |
| 1859 /* | |
| 1860 * Convert a string into a long and/or unsigned long, taking care of | |
|
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1861 * hexadecimal, octal, and binary numbers. Accepts a '-' sign. |
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1862 * If "prep" is not NULL, returns a flag to indicate the type of the number: |
| 7 | 1863 * 0 decimal |
| 1864 * '0' octal | |
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1865 * 'B' bin |
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1866 * 'b' bin |
| 7 | 1867 * 'X' hex |
| 1868 * 'x' hex | |
| 1869 * If "len" is not NULL, the length of the number in characters is returned. | |
| 1870 * If "nptr" is not NULL, the signed result is returned in it. | |
| 1871 * If "unptr" is not NULL, the unsigned result is returned in it. | |
|
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1872 * If "what" contains STR2NR_BIN recognize binary numbers |
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1873 * If "what" contains STR2NR_OCT recognize octal numbers |
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1874 * If "what" contains STR2NR_HEX recognize hex numbers |
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1875 * If "what" contains STR2NR_FORCE always assume bin/oct/hex. |
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1876 * If maxlen > 0, check at a maximum maxlen chars. |
| 7 | 1877 */ |
| 1878 void | |
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1879 vim_str2nr( |
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1880 char_u *start, |
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1881 int *prep, /* return: type of number 0 = decimal, 'x' |
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1882 or 'X' is hex, '0' = octal, 'b' or 'B' |
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1883 is bin */ |
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1884 int *len, /* return: detected length of number */ |
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1885 int what, /* what numbers to recognize */ |
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1886 varnumber_T *nptr, /* return: signed result */ |
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1887 uvarnumber_T *unptr, /* return: unsigned result */ |
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1888 int maxlen) /* max length of string to check */ |
| 7 | 1889 { |
| 1890 char_u *ptr = start; | |
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1891 int pre = 0; /* default is decimal */ |
| 7 | 1892 int negative = FALSE; |
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1893 uvarnumber_T un = 0; |
| 39 | 1894 int n; |
| 7 | 1895 |
| 1896 if (ptr[0] == '-') | |
| 1897 { | |
| 1898 negative = TRUE; | |
| 1899 ++ptr; | |
| 1900 } | |
| 1901 | |
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1902 /* Recognize hex, octal, and bin. */ |
| 6927 | 1903 if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9' |
| 1904 && (maxlen == 0 || maxlen > 1)) | |
| 7 | 1905 { |
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1906 pre = ptr[1]; |
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1907 if ((what & STR2NR_HEX) |
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1908 && (pre == 'X' || pre == 'x') && vim_isxdigit(ptr[2]) |
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1909 && (maxlen == 0 || maxlen > 2)) |
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1910 /* hexadecimal */ |
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1911 ptr += 2; |
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1912 else if ((what & STR2NR_BIN) |
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1913 && (pre == 'B' || pre == 'b') && vim_isbdigit(ptr[2]) |
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1914 && (maxlen == 0 || maxlen > 2)) |
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1915 /* binary */ |
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1916 ptr += 2; |
| 7 | 1917 else |
| 1918 { | |
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1919 /* decimal or octal, default is decimal */ |
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1920 pre = 0; |
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1921 if (what & STR2NR_OCT) |
| 39 | 1922 { |
| 1923 /* Don't interpret "0", "08" or "0129" as octal. */ | |
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1924 for (n = 1; n != maxlen && VIM_ISDIGIT(ptr[n]); ++n) |
| 39 | 1925 { |
| 1926 if (ptr[n] > '7') | |
| 1927 { | |
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1928 pre = 0; /* can't be octal */ |
| 39 | 1929 break; |
| 1930 } | |
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1931 pre = '0'; /* assume octal */ |
| 39 | 1932 } |
| 1933 } | |
| 7 | 1934 } |
| 1935 } | |
| 1936 | |
| 1937 /* | |
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1938 * Do the string-to-numeric conversion "manually" to avoid sscanf quirks. |
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1939 */ |
| 6927 | 1940 n = 1; |
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1941 if (pre == 'B' || pre == 'b' || what == STR2NR_BIN + STR2NR_FORCE) |
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1942 { |
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1943 /* bin */ |
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1944 if (pre != 0) |
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1945 n += 2; /* skip over "0b" */ |
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1946 while ('0' <= *ptr && *ptr <= '1') |
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1947 { |
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1948 /* avoid ubsan error for overflow */ |
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1949 if (un <= UVARNUM_MAX / 2) |
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1950 un = 2 * un + (uvarnumber_T)(*ptr - '0'); |
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1951 else |
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1952 un = UVARNUM_MAX; |
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1953 ++ptr; |
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1954 if (n++ == maxlen) |
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1955 break; |
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1956 } |
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1957 } |
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1958 else if (pre == '0' || what == STR2NR_OCT + STR2NR_FORCE) |
| 7 | 1959 { |
| 293 | 1960 /* octal */ |
| 1961 while ('0' <= *ptr && *ptr <= '7') | |
| 7 | 1962 { |
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1963 /* avoid ubsan error for overflow */ |
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1964 if (un <= UVARNUM_MAX / 8) |
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1965 un = 8 * un + (uvarnumber_T)(*ptr - '0'); |
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1966 else |
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1967 un = UVARNUM_MAX; |
| 293 | 1968 ++ptr; |
| 6927 | 1969 if (n++ == maxlen) |
| 1970 break; | |
| 7 | 1971 } |
| 293 | 1972 } |
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1973 else if (pre != 0 || what == STR2NR_HEX + STR2NR_FORCE) |
| 293 | 1974 { |
| 1975 /* hex */ | |
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1976 if (pre != 0) |
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1977 n += 2; /* skip over "0x" */ |
| 293 | 1978 while (vim_isxdigit(*ptr)) |
| 7 | 1979 { |
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1980 /* avoid ubsan error for overflow */ |
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1981 if (un <= UVARNUM_MAX / 16) |
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1982 un = 16 * un + (uvarnumber_T)hex2nr(*ptr); |
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1983 else |
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1984 un = UVARNUM_MAX; |
| 293 | 1985 ++ptr; |
| 6927 | 1986 if (n++ == maxlen) |
| 1987 break; | |
| 7 | 1988 } |
| 1989 } | |
| 1990 else | |
| 1991 { | |
| 1992 /* decimal */ | |
| 1993 while (VIM_ISDIGIT(*ptr)) | |
| 1994 { | |
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1995 uvarnumber_T digit = (uvarnumber_T)(*ptr - '0'); |
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1996 |
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1997 /* avoid ubsan error for overflow */ |
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1998 if (un < UVARNUM_MAX / 10 |
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1999 || (un == UVARNUM_MAX / 10 && digit <= UVARNUM_MAX % 10)) |
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2000 un = 10 * un + digit; |
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2001 else |
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2002 un = UVARNUM_MAX; |
| 7 | 2003 ++ptr; |
| 6927 | 2004 if (n++ == maxlen) |
| 2005 break; | |
| 7 | 2006 } |
| 2007 } | |
| 2008 | |
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2009 if (prep != NULL) |
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2010 *prep = pre; |
| 7 | 2011 if (len != NULL) |
| 2012 *len = (int)(ptr - start); | |
| 2013 if (nptr != NULL) | |
| 16 | 2014 { |
| 2015 if (negative) /* account for leading '-' for decimal numbers */ | |
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2016 { |
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2017 /* avoid ubsan error for overflow */ |
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2018 if (un > VARNUM_MAX) |
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2019 *nptr = VARNUM_MIN; |
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2020 else |
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2021 *nptr = -(varnumber_T)un; |
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2022 } |
| 16 | 2023 else |
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2024 { |
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2025 if (un > VARNUM_MAX) |
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2026 un = VARNUM_MAX; |
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2027 *nptr = (varnumber_T)un; |
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2028 } |
| 16 | 2029 } |
| 7 | 2030 if (unptr != NULL) |
| 2031 *unptr = un; | |
| 2032 } | |
| 2033 | |
| 2034 /* | |
| 2035 * Return the value of a single hex character. | |
| 2036 * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'. | |
| 2037 */ | |
| 2038 int | |
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2039 hex2nr(int c) |
| 7 | 2040 { |
| 2041 if (c >= 'a' && c <= 'f') | |
| 2042 return c - 'a' + 10; | |
| 2043 if (c >= 'A' && c <= 'F') | |
| 2044 return c - 'A' + 10; | |
| 2045 return c - '0'; | |
| 2046 } | |
| 2047 | |
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2048 #if defined(FEAT_TERMRESPONSE) || defined(FEAT_GUI_GTK) || defined(PROTO) |
| 7 | 2049 /* |
| 2050 * Convert two hex characters to a byte. | |
| 2051 * Return -1 if one of the characters is not hex. | |
| 2052 */ | |
| 2053 int | |
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2054 hexhex2nr(char_u *p) |
| 7 | 2055 { |
| 2056 if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1])) | |
| 2057 return -1; | |
| 2058 return (hex2nr(p[0]) << 4) + hex2nr(p[1]); | |
| 2059 } | |
| 2060 #endif | |
| 2061 | |
| 2062 /* | |
| 2063 * Return TRUE if "str" starts with a backslash that should be removed. | |
| 2064 * For MS-DOS, WIN32 and OS/2 this is only done when the character after the | |
| 2065 * backslash is not a normal file name character. | |
| 2066 * '$' is a valid file name character, we don't remove the backslash before | |
| 2067 * it. This means it is not possible to use an environment variable after a | |
| 2068 * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works. | |
| 2069 * Although "\ name" is valid, the backslash in "Program\ files" must be | |
| 2070 * removed. Assume a file name doesn't start with a space. | |
| 2071 * For multi-byte names, never remove a backslash before a non-ascii | |
| 2072 * character, assume that all multi-byte characters are valid file name | |
| 2073 * characters. | |
| 2074 */ | |
| 2075 int | |
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2076 rem_backslash(char_u *str) |
| 7 | 2077 { |
| 2078 #ifdef BACKSLASH_IN_FILENAME | |
| 2079 return (str[0] == '\\' | |
| 2080 # ifdef FEAT_MBYTE | |
| 2081 && str[1] < 0x80 | |
| 2082 # endif | |
| 2083 && (str[1] == ' ' | |
| 2084 || (str[1] != NUL | |
| 2085 && str[1] != '*' | |
| 2086 && str[1] != '?' | |
| 2087 && !vim_isfilec(str[1])))); | |
| 2088 #else | |
| 2089 return (str[0] == '\\' && str[1] != NUL); | |
| 2090 #endif | |
| 2091 } | |
| 2092 | |
| 2093 /* | |
| 2094 * Halve the number of backslashes in a file name argument. | |
| 2095 * For MS-DOS we only do this if the character after the backslash | |
| 2096 * is not a normal file character. | |
| 2097 */ | |
| 2098 void | |
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2099 backslash_halve(char_u *p) |
| 7 | 2100 { |
| 2101 for ( ; *p; ++p) | |
| 2102 if (rem_backslash(p)) | |
| 1621 | 2103 STRMOVE(p, p + 1); |
| 7 | 2104 } |
| 2105 | |
| 2106 /* | |
| 2107 * backslash_halve() plus save the result in allocated memory. | |
| 2108 */ | |
| 2109 char_u * | |
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2110 backslash_halve_save(char_u *p) |
| 7 | 2111 { |
| 2112 char_u *res; | |
| 2113 | |
| 2114 res = vim_strsave(p); | |
| 2115 if (res == NULL) | |
| 2116 return p; | |
| 2117 backslash_halve(res); | |
| 2118 return res; | |
| 2119 } | |
| 2120 | |
| 2121 #if (defined(EBCDIC) && defined(FEAT_POSTSCRIPT)) || defined(PROTO) | |
| 2122 /* | |
| 2123 * Table for EBCDIC to ASCII conversion unashamedly taken from xxd.c! | |
| 2124 * The first 64 entries have been added to map control characters defined in | |
| 2125 * ascii.h | |
| 2126 */ | |
| 2127 static char_u ebcdic2ascii_tab[256] = | |
| 2128 { | |
| 2129 0000, 0001, 0002, 0003, 0004, 0011, 0006, 0177, | |
| 2130 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017, | |
| 2131 0020, 0021, 0022, 0023, 0024, 0012, 0010, 0027, | |
| 2132 0030, 0031, 0032, 0033, 0033, 0035, 0036, 0037, | |
| 2133 0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047, | |
| 2134 0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057, | |
| 2135 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, | |
| 2136 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077, | |
| 2137 0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246, | |
| 2138 0247, 0250, 0325, 0056, 0074, 0050, 0053, 0174, | |
| 2139 0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257, | |
| 2140 0260, 0261, 0041, 0044, 0052, 0051, 0073, 0176, | |
| 2141 0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267, | |
| 2142 0270, 0271, 0313, 0054, 0045, 0137, 0076, 0077, | |
| 2143 0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301, | |
| 2144 0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042, | |
| 2145 0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147, | |
| 2146 0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311, | |
| 2147 0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160, | |
| 2148 0161, 0162, 0136, 0314, 0315, 0316, 0317, 0320, | |
| 2149 0321, 0345, 0163, 0164, 0165, 0166, 0167, 0170, | |
| 2150 0171, 0172, 0322, 0323, 0324, 0133, 0326, 0327, | |
| 2151 0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337, | |
| 2152 0340, 0341, 0342, 0343, 0344, 0135, 0346, 0347, | |
| 2153 0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107, | |
| 2154 0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355, | |
| 2155 0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120, | |
| 2156 0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363, | |
| 2157 0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130, | |
| 2158 0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371, | |
| 2159 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, | |
| 2160 0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377 | |
| 2161 }; | |
| 2162 | |
| 2163 /* | |
| 2164 * Convert a buffer worth of characters from EBCDIC to ASCII. Only useful if | |
| 2165 * wanting 7-bit ASCII characters out the other end. | |
| 2166 */ | |
| 2167 void | |
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2168 ebcdic2ascii(char_u *buffer, int len) |
| 7 | 2169 { |
| 2170 int i; | |
| 2171 | |
| 2172 for (i = 0; i < len; i++) | |
| 2173 buffer[i] = ebcdic2ascii_tab[buffer[i]]; | |
| 2174 } | |
| 2175 #endif |