Mercurial > vim
annotate src/charset.c @ 18078:5ae41d0ea397 v8.1.2034
patch 8.1.2034: dark them of GTK 3 not supported
Commit: https://github.com/vim/vim/commit/50bf7ce0c9f8c3ede2d1a02c734beba9d5a0504e
Author: Bram Moolenaar <Bram@vim.org>
Date: Sun Sep 15 13:17:00 2019 +0200
patch 8.1.2034: dark them of GTK 3 not supported
Problem: Dark them of GTK 3 not supported.
Solution: Add the "d" flag in 'guioptions'. (Jonathan Conder, closes https://github.com/vim/vim/issues/4934)
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sun, 15 Sep 2019 13:30:04 +0200 |
| parents | 59f8948b7590 |
| children | 1c7a91cf2356 |
| 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 | |
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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 |
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15 static int win_nolbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp); |
| 7 | 16 |
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17 static unsigned nr2hex(unsigned c); |
| 7 | 18 |
| 19 static int chartab_initialized = FALSE; | |
| 20 | |
| 21 /* b_chartab[] is an array of 32 bytes, each bit representing one of the | |
| 22 * characters 0-255. */ | |
| 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 * 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 while (c < 256) |
| 104 { | |
| 105 /* UTF-8: bytes 0xa0 - 0xff are printable (latin1) */ | |
| 106 if (enc_utf8 && c >= 0xa0) | |
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107 g_chartab[c++] = CT_PRINT_CHAR + 1; |
| 7 | 108 /* euc-jp characters starting with 0x8e are single width */ |
| 109 else if (enc_dbcs == DBCS_JPNU && c == 0x8e) | |
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110 g_chartab[c++] = CT_PRINT_CHAR + 1; |
| 7 | 111 /* other double-byte chars can be printable AND double-width */ |
| 112 else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2) | |
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113 g_chartab[c++] = CT_PRINT_CHAR + 2; |
| 7 | 114 else |
| 115 /* the rest is unprintable by default */ | |
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116 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| 7 | 117 } |
| 118 | |
| 119 /* Assume that every multi-byte char is a filename character. */ | |
| 120 for (c = 1; c < 256; ++c) | |
| 121 if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1) | |
| 122 || (enc_dbcs == DBCS_JPNU && c == 0x8e) | |
| 123 || (enc_utf8 && c >= 0xa0)) | |
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124 g_chartab[c] |= CT_FNAME_CHAR; |
| 7 | 125 } |
| 126 | |
| 127 /* | |
| 128 * Init word char flags all to FALSE | |
| 129 */ | |
| 130 vim_memset(buf->b_chartab, 0, (size_t)32); | |
| 227 | 131 if (enc_dbcs != 0) |
| 132 for (c = 0; c < 256; ++c) | |
| 133 { | |
| 134 /* double-byte characters are probably word characters */ | |
| 135 if (MB_BYTE2LEN(c) == 2) | |
| 136 SET_CHARTAB(buf, c); | |
| 137 } | |
| 7 | 138 |
| 139 #ifdef FEAT_LISP | |
| 140 /* | |
| 141 * In lisp mode the '-' character is included in keywords. | |
| 142 */ | |
| 143 if (buf->b_p_lisp) | |
| 144 SET_CHARTAB(buf, '-'); | |
| 145 #endif | |
| 146 | |
| 147 /* Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint' | |
| 148 * options Each option is a list of characters, character numbers or | |
| 149 * ranges, separated by commas, e.g.: "200-210,x,#-178,-" | |
| 150 */ | |
| 151 for (i = global ? 0 : 3; i <= 3; ++i) | |
| 152 { | |
| 153 if (i == 0) | |
| 154 p = p_isi; /* first round: 'isident' */ | |
| 155 else if (i == 1) | |
| 156 p = p_isp; /* second round: 'isprint' */ | |
| 157 else if (i == 2) | |
| 158 p = p_isf; /* third round: 'isfname' */ | |
| 159 else /* i == 3 */ | |
| 160 p = buf->b_p_isk; /* fourth round: 'iskeyword' */ | |
| 161 | |
| 162 while (*p) | |
| 163 { | |
| 164 tilde = FALSE; | |
| 165 do_isalpha = FALSE; | |
| 166 if (*p == '^' && p[1] != NUL) | |
| 167 { | |
| 168 tilde = TRUE; | |
| 169 ++p; | |
| 170 } | |
| 171 if (VIM_ISDIGIT(*p)) | |
| 172 c = getdigits(&p); | |
| 173 else | |
| 1955 | 174 if (has_mbyte) |
| 175 c = mb_ptr2char_adv(&p); | |
| 176 else | |
| 7 | 177 c = *p++; |
| 178 c2 = -1; | |
| 179 if (*p == '-' && p[1] != NUL) | |
| 180 { | |
| 181 ++p; | |
| 182 if (VIM_ISDIGIT(*p)) | |
| 183 c2 = getdigits(&p); | |
| 184 else | |
| 1979 | 185 if (has_mbyte) |
| 186 c2 = mb_ptr2char_adv(&p); | |
| 187 else | |
| 7 | 188 c2 = *p++; |
| 189 } | |
| 1979 | 190 if (c <= 0 || c >= 256 || (c2 < c && c2 != -1) || c2 >= 256 |
| 7 | 191 || !(*p == NUL || *p == ',')) |
| 192 return FAIL; | |
| 193 | |
| 194 if (c2 == -1) /* not a range */ | |
| 195 { | |
| 196 /* | |
| 197 * A single '@' (not "@-@"): | |
| 198 * Decide on letters being ID/printable/keyword chars with | |
| 199 * standard function isalpha(). This takes care of locale for | |
| 200 * single-byte characters). | |
| 201 */ | |
| 202 if (c == '@') | |
| 203 { | |
| 204 do_isalpha = TRUE; | |
| 205 c = 1; | |
| 206 c2 = 255; | |
| 207 } | |
| 208 else | |
| 209 c2 = c; | |
| 210 } | |
| 211 while (c <= c2) | |
| 212 { | |
| 1365 | 213 /* Use the MB_ functions here, because isalpha() doesn't |
| 214 * work properly when 'encoding' is "latin1" and the locale is | |
| 215 * "C". */ | |
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216 if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c)) |
| 7 | 217 { |
| 218 if (i == 0) /* (re)set ID flag */ | |
| 219 { | |
| 220 if (tilde) | |
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221 g_chartab[c] &= ~CT_ID_CHAR; |
| 7 | 222 else |
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223 g_chartab[c] |= CT_ID_CHAR; |
| 7 | 224 } |
| 225 else if (i == 1) /* (re)set printable */ | |
| 226 { | |
| 227 if ((c < ' ' | |
| 228 #ifndef EBCDIC | |
| 229 || c > '~' | |
| 230 #endif | |
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231 // For double-byte we keep the cell width, so |
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232 // that we can detect it from the first byte. |
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233 ) && !(enc_dbcs && MB_BYTE2LEN(c) == 2)) |
| 7 | 234 { |
| 235 if (tilde) | |
| 236 { | |
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237 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) |
| 7 | 238 + ((dy_flags & DY_UHEX) ? 4 : 2); |
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239 g_chartab[c] &= ~CT_PRINT_CHAR; |
| 7 | 240 } |
| 241 else | |
| 242 { | |
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243 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) + 1; |
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244 g_chartab[c] |= CT_PRINT_CHAR; |
| 7 | 245 } |
| 246 } | |
| 247 } | |
| 248 else if (i == 2) /* (re)set fname flag */ | |
| 249 { | |
| 250 if (tilde) | |
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251 g_chartab[c] &= ~CT_FNAME_CHAR; |
| 7 | 252 else |
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253 g_chartab[c] |= CT_FNAME_CHAR; |
| 7 | 254 } |
| 255 else /* i == 3 */ /* (re)set keyword flag */ | |
| 256 { | |
| 257 if (tilde) | |
| 258 RESET_CHARTAB(buf, c); | |
| 259 else | |
| 260 SET_CHARTAB(buf, c); | |
| 261 } | |
| 262 } | |
| 263 ++c; | |
| 264 } | |
| 4096 | 265 |
| 266 c = *p; | |
| 7 | 267 p = skip_to_option_part(p); |
| 4096 | 268 if (c == ',' && *p == NUL) |
| 269 /* Trailing comma is not allowed. */ | |
| 270 return FAIL; | |
| 7 | 271 } |
| 272 } | |
| 273 chartab_initialized = TRUE; | |
| 274 return OK; | |
| 275 } | |
| 276 | |
| 277 /* | |
| 278 * Translate any special characters in buf[bufsize] in-place. | |
| 279 * The result is a string with only printable characters, but if there is not | |
| 280 * enough room, not all characters will be translated. | |
| 281 */ | |
| 282 void | |
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283 trans_characters( |
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284 char_u *buf, |
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285 int bufsize) |
| 7 | 286 { |
| 287 int len; /* length of string needing translation */ | |
| 288 int room; /* room in buffer after string */ | |
| 289 char_u *trs; /* translated character */ | |
| 290 int trs_len; /* length of trs[] */ | |
| 291 | |
| 292 len = (int)STRLEN(buf); | |
| 293 room = bufsize - len; | |
| 294 while (*buf != 0) | |
| 295 { | |
| 296 /* Assume a multi-byte character doesn't need translation. */ | |
| 474 | 297 if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1) |
| 7 | 298 len -= trs_len; |
| 299 else | |
| 300 { | |
| 301 trs = transchar_byte(*buf); | |
| 302 trs_len = (int)STRLEN(trs); | |
| 303 if (trs_len > 1) | |
| 304 { | |
| 305 room -= trs_len - 1; | |
| 306 if (room <= 0) | |
| 307 return; | |
| 308 mch_memmove(buf + trs_len, buf + 1, (size_t)len); | |
| 309 } | |
| 310 mch_memmove(buf, trs, (size_t)trs_len); | |
| 311 --len; | |
| 312 } | |
| 313 buf += trs_len; | |
| 314 } | |
| 315 } | |
| 316 | |
| 317 /* | |
| 318 * Translate a string into allocated memory, replacing special chars with | |
| 319 * printable chars. Returns NULL when out of memory. | |
| 320 */ | |
| 321 char_u * | |
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322 transstr(char_u *s) |
| 7 | 323 { |
| 324 char_u *res; | |
| 325 char_u *p; | |
| 326 int l, len, c; | |
| 327 char_u hexbuf[11]; | |
| 328 | |
| 329 if (has_mbyte) | |
| 330 { | |
| 331 /* Compute the length of the result, taking account of unprintable | |
| 332 * multi-byte characters. */ | |
| 333 len = 0; | |
| 334 p = s; | |
| 335 while (*p != NUL) | |
| 336 { | |
| 474 | 337 if ((l = (*mb_ptr2len)(p)) > 1) |
| 7 | 338 { |
| 339 c = (*mb_ptr2char)(p); | |
| 340 p += l; | |
| 341 if (vim_isprintc(c)) | |
| 342 len += l; | |
| 343 else | |
| 344 { | |
| 345 transchar_hex(hexbuf, c); | |
| 835 | 346 len += (int)STRLEN(hexbuf); |
| 7 | 347 } |
| 348 } | |
| 349 else | |
| 350 { | |
| 351 l = byte2cells(*p++); | |
| 352 if (l > 0) | |
| 353 len += l; | |
| 354 else | |
| 355 len += 4; /* illegal byte sequence */ | |
| 356 } | |
| 357 } | |
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358 res = alloc(len + 1); |
| 7 | 359 } |
| 360 else | |
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361 res = alloc(vim_strsize(s) + 1); |
| 7 | 362 if (res != NULL) |
| 363 { | |
| 364 *res = NUL; | |
| 365 p = s; | |
| 366 while (*p != NUL) | |
| 367 { | |
| 474 | 368 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 7 | 369 { |
| 370 c = (*mb_ptr2char)(p); | |
| 371 if (vim_isprintc(c)) | |
| 372 STRNCAT(res, p, l); /* append printable multi-byte char */ | |
| 373 else | |
| 374 transchar_hex(res + STRLEN(res), c); | |
| 375 p += l; | |
| 376 } | |
| 377 else | |
| 378 STRCAT(res, transchar_byte(*p++)); | |
| 379 } | |
| 380 } | |
| 381 return res; | |
| 382 } | |
| 383 | |
| 384 /* | |
| 221 | 385 * Convert the string "str[orglen]" to do ignore-case comparing. Uses the |
| 386 * current locale. | |
| 130 | 387 * When "buf" is NULL returns an allocated string (NULL for out-of-memory). |
| 388 * Otherwise puts the result in "buf[buflen]". | |
| 7 | 389 */ |
| 390 char_u * | |
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391 str_foldcase( |
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392 char_u *str, |
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393 int orglen, |
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394 char_u *buf, |
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395 int buflen) |
| 7 | 396 { |
| 397 garray_T ga; | |
| 398 int i; | |
| 130 | 399 int len = orglen; |
| 7 | 400 |
| 401 #define GA_CHAR(i) ((char_u *)ga.ga_data)[i] | |
| 402 #define GA_PTR(i) ((char_u *)ga.ga_data + i) | |
| 130 | 403 #define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i]) |
| 404 #define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + i) | |
| 7 | 405 |
| 130 | 406 /* Copy "str" into "buf" or allocated memory, unmodified. */ |
| 407 if (buf == NULL) | |
| 408 { | |
| 409 ga_init2(&ga, 1, 10); | |
| 410 if (ga_grow(&ga, len + 1) == FAIL) | |
| 411 return NULL; | |
| 412 mch_memmove(ga.ga_data, str, (size_t)len); | |
| 413 ga.ga_len = len; | |
| 414 } | |
| 415 else | |
| 416 { | |
| 417 if (len >= buflen) /* Ugly! */ | |
| 418 len = buflen - 1; | |
| 419 mch_memmove(buf, str, (size_t)len); | |
| 420 } | |
| 421 if (buf == NULL) | |
| 422 GA_CHAR(len) = NUL; | |
| 423 else | |
| 424 buf[len] = NUL; | |
| 7 | 425 |
| 426 /* Make each character lower case. */ | |
| 427 i = 0; | |
| 130 | 428 while (STR_CHAR(i) != NUL) |
| 7 | 429 { |
| 130 | 430 if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1)) |
| 7 | 431 { |
| 432 if (enc_utf8) | |
| 433 { | |
| 1654 | 434 int c = utf_ptr2char(STR_PTR(i)); |
| 3263 | 435 int olen = utf_ptr2len(STR_PTR(i)); |
| 1654 | 436 int lc = utf_tolower(c); |
| 7 | 437 |
| 1654 | 438 /* Only replace the character when it is not an invalid |
| 439 * sequence (ASCII character or more than one byte) and | |
| 440 * utf_tolower() doesn't return the original character. */ | |
| 3263 | 441 if ((c < 0x80 || olen > 1) && c != lc) |
| 7 | 442 { |
| 3263 | 443 int nlen = utf_char2len(lc); |
| 7 | 444 |
| 445 /* If the byte length changes need to shift the following | |
| 446 * characters forward or backward. */ | |
| 3263 | 447 if (olen != nlen) |
| 7 | 448 { |
| 3263 | 449 if (nlen > olen) |
| 130 | 450 { |
| 3263 | 451 if (buf == NULL |
| 452 ? ga_grow(&ga, nlen - olen + 1) == FAIL | |
| 453 : len + nlen - olen >= buflen) | |
| 7 | 454 { |
| 455 /* out of memory, keep old char */ | |
| 456 lc = c; | |
| 3263 | 457 nlen = olen; |
| 7 | 458 } |
| 130 | 459 } |
| 3263 | 460 if (olen != nlen) |
| 7 | 461 { |
| 130 | 462 if (buf == NULL) |
| 463 { | |
| 3263 | 464 STRMOVE(GA_PTR(i) + nlen, GA_PTR(i) + olen); |
| 465 ga.ga_len += nlen - olen; | |
| 130 | 466 } |
| 467 else | |
| 468 { | |
| 3263 | 469 STRMOVE(buf + i + nlen, buf + i + olen); |
| 470 len += nlen - olen; | |
| 130 | 471 } |
| 7 | 472 } |
| 473 } | |
| 130 | 474 (void)utf_char2bytes(lc, STR_PTR(i)); |
| 7 | 475 } |
| 476 } | |
| 477 /* skip to next multi-byte char */ | |
| 474 | 478 i += (*mb_ptr2len)(STR_PTR(i)); |
| 7 | 479 } |
| 480 else | |
| 481 { | |
| 130 | 482 if (buf == NULL) |
| 483 GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i)); | |
| 484 else | |
| 485 buf[i] = TOLOWER_LOC(buf[i]); | |
| 7 | 486 ++i; |
| 487 } | |
| 488 } | |
| 489 | |
| 130 | 490 if (buf == NULL) |
| 491 return (char_u *)ga.ga_data; | |
| 492 return buf; | |
| 7 | 493 } |
| 494 | |
| 495 /* | |
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496 * Catch 22: g_chartab[] can't be initialized before the options are |
| 7 | 497 * initialized, and initializing options may cause transchar() to be called! |
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498 * When chartab_initialized == FALSE don't use g_chartab[]. |
| 7 | 499 * Does NOT work for multi-byte characters, c must be <= 255. |
| 500 * Also doesn't work for the first byte of a multi-byte, "c" must be a | |
| 501 * character! | |
| 502 */ | |
| 503 static char_u transchar_buf[7]; | |
| 504 | |
| 505 char_u * | |
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506 transchar(int c) |
| 7 | 507 { |
| 508 int i; | |
| 509 | |
| 510 i = 0; | |
| 511 if (IS_SPECIAL(c)) /* special key code, display as ~@ char */ | |
| 512 { | |
| 513 transchar_buf[0] = '~'; | |
| 514 transchar_buf[1] = '@'; | |
| 515 i = 2; | |
| 516 c = K_SECOND(c); | |
| 517 } | |
| 518 | |
| 519 if ((!chartab_initialized && ( | |
| 520 #ifdef EBCDIC | |
| 521 (c >= 64 && c < 255) | |
| 522 #else | |
| 523 (c >= ' ' && c <= '~') | |
| 524 #endif | |
| 525 )) || (c < 256 && vim_isprintc_strict(c))) | |
| 526 { | |
| 527 /* printable character */ | |
| 528 transchar_buf[i] = c; | |
| 529 transchar_buf[i + 1] = NUL; | |
| 530 } | |
| 531 else | |
| 532 transchar_nonprint(transchar_buf + i, c); | |
| 533 return transchar_buf; | |
| 534 } | |
| 535 | |
| 536 /* | |
| 537 * Like transchar(), but called with a byte instead of a character. Checks | |
| 538 * for an illegal UTF-8 byte. | |
| 539 */ | |
| 540 char_u * | |
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541 transchar_byte(int c) |
| 7 | 542 { |
| 543 if (enc_utf8 && c >= 0x80) | |
| 544 { | |
| 545 transchar_nonprint(transchar_buf, c); | |
| 546 return transchar_buf; | |
| 547 } | |
| 548 return transchar(c); | |
| 549 } | |
| 550 | |
| 551 /* | |
| 552 * Convert non-printable character to two or more printable characters in | |
| 553 * "buf[]". "buf" needs to be able to hold five bytes. | |
| 554 * Does NOT work for multi-byte characters, c must be <= 255. | |
| 555 */ | |
| 556 void | |
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557 transchar_nonprint(char_u *buf, int c) |
| 7 | 558 { |
| 559 if (c == NL) | |
| 560 c = NUL; /* we use newline in place of a NUL */ | |
| 561 else if (c == CAR && get_fileformat(curbuf) == EOL_MAC) | |
| 562 c = NL; /* we use CR in place of NL in this case */ | |
| 563 | |
| 564 if (dy_flags & DY_UHEX) /* 'display' has "uhex" */ | |
| 565 transchar_hex(buf, c); | |
| 566 | |
| 567 #ifdef EBCDIC | |
| 568 /* For EBCDIC only the characters 0-63 and 255 are not printable */ | |
| 569 else if (CtrlChar(c) != 0 || c == DEL) | |
| 570 #else | |
| 571 else if (c <= 0x7f) /* 0x00 - 0x1f and 0x7f */ | |
| 572 #endif | |
| 573 { | |
| 574 buf[0] = '^'; | |
| 575 #ifdef EBCDIC | |
| 576 if (c == DEL) | |
| 577 buf[1] = '?'; /* DEL displayed as ^? */ | |
| 578 else | |
| 579 buf[1] = CtrlChar(c); | |
| 580 #else | |
| 581 buf[1] = c ^ 0x40; /* DEL displayed as ^? */ | |
| 582 #endif | |
| 583 | |
| 584 buf[2] = NUL; | |
| 585 } | |
| 586 else if (enc_utf8 && c >= 0x80) | |
| 587 { | |
| 588 transchar_hex(buf, c); | |
| 589 } | |
| 590 #ifndef EBCDIC | |
| 591 else if (c >= ' ' + 0x80 && c <= '~' + 0x80) /* 0xa0 - 0xfe */ | |
| 592 { | |
| 593 buf[0] = '|'; | |
| 594 buf[1] = c - 0x80; | |
| 595 buf[2] = NUL; | |
| 596 } | |
| 597 #else | |
| 598 else if (c < 64) | |
| 599 { | |
| 600 buf[0] = '~'; | |
| 601 buf[1] = MetaChar(c); | |
| 602 buf[2] = NUL; | |
| 603 } | |
| 604 #endif | |
| 605 else /* 0x80 - 0x9f and 0xff */ | |
| 606 { | |
| 607 /* | |
| 608 * TODO: EBCDIC I don't know what to do with this chars, so I display | |
| 609 * them as '~?' for now | |
| 610 */ | |
| 611 buf[0] = '~'; | |
| 612 #ifdef EBCDIC | |
| 613 buf[1] = '?'; /* 0xff displayed as ~? */ | |
| 614 #else | |
| 615 buf[1] = (c - 0x80) ^ 0x40; /* 0xff displayed as ~? */ | |
| 616 #endif | |
| 617 buf[2] = NUL; | |
| 618 } | |
| 619 } | |
| 620 | |
| 621 void | |
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622 transchar_hex(char_u *buf, int c) |
| 7 | 623 { |
| 624 int i = 0; | |
| 625 | |
| 626 buf[0] = '<'; | |
| 627 if (c > 255) | |
| 628 { | |
| 629 buf[++i] = nr2hex((unsigned)c >> 12); | |
| 630 buf[++i] = nr2hex((unsigned)c >> 8); | |
| 631 } | |
| 632 buf[++i] = nr2hex((unsigned)c >> 4); | |
| 1869 | 633 buf[++i] = nr2hex((unsigned)c); |
| 7 | 634 buf[++i] = '>'; |
| 635 buf[++i] = NUL; | |
| 636 } | |
| 637 | |
| 638 /* | |
| 639 * Convert the lower 4 bits of byte "c" to its hex character. | |
| 640 * Lower case letters are used to avoid the confusion of <F1> being 0xf1 or | |
| 641 * function key 1. | |
| 642 */ | |
| 1869 | 643 static unsigned |
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644 nr2hex(unsigned c) |
| 7 | 645 { |
| 646 if ((c & 0xf) <= 9) | |
| 647 return (c & 0xf) + '0'; | |
| 648 return (c & 0xf) - 10 + 'a'; | |
| 649 } | |
| 650 | |
| 651 /* | |
| 652 * Return number of display cells occupied by byte "b". | |
| 653 * Caller must make sure 0 <= b <= 255. | |
| 654 * For multi-byte mode "b" must be the first byte of a character. | |
| 655 * A TAB is counted as two cells: "^I". | |
| 656 * For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of | |
| 657 * cells depends on further bytes. | |
| 658 */ | |
| 659 int | |
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660 byte2cells(int b) |
| 7 | 661 { |
| 662 if (enc_utf8 && b >= 0x80) | |
| 663 return 0; | |
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664 return (g_chartab[b] & CT_CELL_MASK); |
| 7 | 665 } |
| 666 | |
| 667 /* | |
| 668 * Return number of display cells occupied by character "c". | |
| 669 * "c" can be a special key (negative number) in which case 3 or 4 is returned. | |
| 670 * A TAB is counted as two cells: "^I" or four: "<09>". | |
| 671 */ | |
| 672 int | |
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673 char2cells(int c) |
| 7 | 674 { |
| 675 if (IS_SPECIAL(c)) | |
| 676 return char2cells(K_SECOND(c)) + 2; | |
| 677 if (c >= 0x80) | |
| 678 { | |
| 679 /* UTF-8: above 0x80 need to check the value */ | |
| 680 if (enc_utf8) | |
| 681 return utf_char2cells(c); | |
| 682 /* DBCS: double-byte means double-width, except for euc-jp with first | |
| 683 * byte 0x8e */ | |
| 684 if (enc_dbcs != 0 && c >= 0x100) | |
| 685 { | |
| 686 if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e) | |
| 687 return 1; | |
| 688 return 2; | |
| 689 } | |
| 690 } | |
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691 return (g_chartab[c & 0xff] & CT_CELL_MASK); |
| 7 | 692 } |
| 693 | |
| 694 /* | |
| 695 * Return number of display cells occupied by character at "*p". | |
| 696 * A TAB is counted as two cells: "^I" or four: "<09>". | |
| 697 */ | |
| 698 int | |
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699 ptr2cells(char_u *p) |
| 7 | 700 { |
| 701 /* For UTF-8 we need to look at more bytes if the first byte is >= 0x80. */ | |
| 702 if (enc_utf8 && *p >= 0x80) | |
| 703 return utf_ptr2cells(p); | |
| 704 /* For DBCS we can tell the cell count from the first byte. */ | |
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705 return (g_chartab[*p] & CT_CELL_MASK); |
| 7 | 706 } |
| 707 | |
| 708 /* | |
| 3292 | 709 * Return the number of character cells string "s" will take on the screen, |
| 7 | 710 * counting TABs as two characters: "^I". |
| 711 */ | |
| 712 int | |
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713 vim_strsize(char_u *s) |
| 7 | 714 { |
| 715 return vim_strnsize(s, (int)MAXCOL); | |
| 716 } | |
| 717 | |
| 718 /* | |
| 3292 | 719 * Return the number of character cells string "s[len]" will take on the |
| 720 * screen, counting TABs as two characters: "^I". | |
| 7 | 721 */ |
| 722 int | |
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723 vim_strnsize(char_u *s, int len) |
| 7 | 724 { |
| 725 int size = 0; | |
| 726 | |
| 727 while (*s != NUL && --len >= 0) | |
| 728 if (has_mbyte) | |
| 729 { | |
| 474 | 730 int l = (*mb_ptr2len)(s); |
| 7 | 731 |
| 732 size += ptr2cells(s); | |
| 733 s += l; | |
| 734 len -= l - 1; | |
| 735 } | |
| 736 else | |
| 737 size += byte2cells(*s++); | |
|
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738 |
| 7 | 739 return size; |
| 740 } | |
| 741 | |
| 742 /* | |
| 743 * Return the number of characters 'c' will take on the screen, taking | |
| 744 * into account the size of a tab. | |
| 745 * Use a define to make it fast, this is used very often!!! | |
| 746 * Also see getvcol() below. | |
| 747 */ | |
| 748 | |
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749 #ifdef FEAT_VARTABS |
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750 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
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751 if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \ |
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752 { \ |
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753 return tabstop_padding(col, (buf)->b_p_ts, (buf)->b_p_vts_array); \ |
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754 } \ |
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755 else \ |
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756 return ptr2cells(p); |
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757 #else |
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758 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
| 7 | 759 if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \ |
| 760 { \ | |
| 761 int ts; \ | |
| 762 ts = (buf)->b_p_ts; \ | |
| 763 return (int)(ts - (col % ts)); \ | |
| 764 } \ | |
| 765 else \ | |
| 766 return ptr2cells(p); | |
|
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767 #endif |
| 7 | 768 |
| 769 int | |
|
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770 chartabsize(char_u *p, colnr_T col) |
| 7 | 771 { |
| 772 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col) | |
| 773 } | |
| 774 | |
| 775 #ifdef FEAT_LINEBREAK | |
| 776 static int | |
|
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777 win_chartabsize(win_T *wp, char_u *p, colnr_T col) |
| 7 | 778 { |
| 779 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col) | |
| 780 } | |
| 781 #endif | |
| 782 | |
| 783 /* | |
|
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784 * Return the number of characters the string 's' will take on the screen, |
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785 * taking into account the size of a tab. |
| 7 | 786 */ |
| 787 int | |
|
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788 linetabsize(char_u *s) |
| 7 | 789 { |
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790 return linetabsize_col(0, s); |
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791 } |
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792 |
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793 /* |
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794 * Like linetabsize(), but starting at column "startcol". |
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795 */ |
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796 int |
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797 linetabsize_col(int startcol, char_u *s) |
|
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798 { |
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799 colnr_T col = startcol; |
| 5995 | 800 char_u *line = s; /* pointer to start of line, for breakindent */ |
| 7 | 801 |
| 802 while (*s != NUL) | |
| 5995 | 803 col += lbr_chartabsize_adv(line, &s, col); |
| 7 | 804 return (int)col; |
| 805 } | |
| 806 | |
| 807 /* | |
| 808 * Like linetabsize(), but for a given window instead of the current one. | |
| 809 */ | |
| 810 int | |
|
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811 win_linetabsize(win_T *wp, char_u *line, colnr_T len) |
| 7 | 812 { |
| 813 colnr_T col = 0; | |
| 814 char_u *s; | |
| 815 | |
| 5995 | 816 for (s = line; *s != NUL && (len == MAXCOL || s < line + len); |
|
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817 MB_PTR_ADV(s)) |
| 5995 | 818 col += win_lbr_chartabsize(wp, line, s, col, NULL); |
| 7 | 819 return (int)col; |
| 820 } | |
| 821 | |
| 822 /* | |
| 42 | 823 * Return TRUE if 'c' is a normal identifier character: |
| 824 * Letters and characters from the 'isident' option. | |
| 7 | 825 */ |
| 826 int | |
|
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827 vim_isIDc(int c) |
| 7 | 828 { |
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829 return (c > 0 && c < 0x100 && (g_chartab[c] & CT_ID_CHAR)); |
| 7 | 830 } |
| 831 | |
| 832 /* | |
| 833 * return TRUE if 'c' is a keyword character: Letters and characters from | |
|
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834 * 'iskeyword' option for the current buffer. |
| 7 | 835 * For multi-byte characters mb_get_class() is used (builtin rules). |
| 836 */ | |
| 837 int | |
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838 vim_iswordc(int c) |
| 7 | 839 { |
| 4043 | 840 return vim_iswordc_buf(c, curbuf); |
| 841 } | |
| 842 | |
| 843 int | |
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844 vim_iswordc_buf(int c, buf_T *buf) |
| 4043 | 845 { |
| 7 | 846 if (c >= 0x100) |
| 847 { | |
| 848 if (enc_dbcs != 0) | |
| 1869 | 849 return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2; |
| 7 | 850 if (enc_utf8) |
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851 return utf_class_buf(c, buf) >= 2; |
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852 return FALSE; |
| 7 | 853 } |
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854 return (c > 0 && GET_CHARTAB(buf, c) != 0); |
| 7 | 855 } |
| 856 | |
| 857 /* | |
| 858 * Just like vim_iswordc() but uses a pointer to the (multi-byte) character. | |
| 859 */ | |
| 860 int | |
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861 vim_iswordp(char_u *p) |
| 7 | 862 { |
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863 return vim_iswordp_buf(p, curbuf); |
| 7 | 864 } |
| 865 | |
| 866 int | |
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867 vim_iswordp_buf(char_u *p, buf_T *buf) |
| 7 | 868 { |
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869 int c = *p; |
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870 |
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871 if (has_mbyte && MB_BYTE2LEN(c) > 1) |
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872 c = (*mb_ptr2char)(p); |
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873 return vim_iswordc_buf(c, buf); |
| 7 | 874 } |
| 875 | |
| 876 /* | |
| 877 * return TRUE if 'c' is a valid file-name character | |
| 878 * Assume characters above 0x100 are valid (multi-byte). | |
| 879 */ | |
| 880 int | |
|
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881 vim_isfilec(int c) |
| 7 | 882 { |
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883 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_FNAME_CHAR))); |
| 7 | 884 } |
| 885 | |
| 886 /* | |
| 1369 | 887 * return TRUE if 'c' is a valid file-name character or a wildcard character |
| 888 * Assume characters above 0x100 are valid (multi-byte). | |
| 889 * Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]") | |
| 890 * returns false. | |
| 891 */ | |
| 892 int | |
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893 vim_isfilec_or_wc(int c) |
| 1369 | 894 { |
| 895 char_u buf[2]; | |
| 896 | |
| 897 buf[0] = (char_u)c; | |
| 898 buf[1] = NUL; | |
| 899 return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf); | |
| 900 } | |
| 901 | |
| 902 /* | |
|
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903 * Return TRUE if 'c' is a printable character. |
| 7 | 904 * Assume characters above 0x100 are printable (multi-byte), except for |
| 905 * Unicode. | |
| 906 */ | |
| 907 int | |
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908 vim_isprintc(int c) |
| 7 | 909 { |
| 910 if (enc_utf8 && c >= 0x100) | |
| 911 return utf_printable(c); | |
|
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912 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 913 } |
| 914 | |
| 915 /* | |
| 916 * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head | |
| 917 * byte of a double-byte character. | |
| 918 */ | |
| 919 int | |
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920 vim_isprintc_strict(int c) |
| 7 | 921 { |
| 922 if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1) | |
| 923 return FALSE; | |
| 924 if (enc_utf8 && c >= 0x100) | |
| 925 return utf_printable(c); | |
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926 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 927 } |
| 928 | |
| 929 /* | |
| 930 * like chartabsize(), but also check for line breaks on the screen | |
| 931 */ | |
| 932 int | |
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933 lbr_chartabsize( |
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934 char_u *line UNUSED, /* start of the line */ |
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935 unsigned char *s, |
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936 colnr_T col) |
| 7 | 937 { |
| 938 #ifdef FEAT_LINEBREAK | |
| 5995 | 939 if (!curwin->w_p_lbr && *p_sbr == NUL && !curwin->w_p_bri) |
| 7 | 940 { |
| 941 #endif | |
| 942 if (curwin->w_p_wrap) | |
| 943 return win_nolbr_chartabsize(curwin, s, col, NULL); | |
| 944 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col) | |
| 945 #ifdef FEAT_LINEBREAK | |
| 946 } | |
| 5995 | 947 return win_lbr_chartabsize(curwin, line == NULL ? s : line, s, col, NULL); |
| 7 | 948 #endif |
| 949 } | |
| 950 | |
| 951 /* | |
| 952 * Call lbr_chartabsize() and advance the pointer. | |
| 953 */ | |
| 954 int | |
|
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955 lbr_chartabsize_adv( |
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956 char_u *line, /* start of the line */ |
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957 char_u **s, |
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958 colnr_T col) |
| 7 | 959 { |
| 960 int retval; | |
| 961 | |
| 5995 | 962 retval = lbr_chartabsize(line, *s, col); |
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963 MB_PTR_ADV(*s); |
| 7 | 964 return retval; |
| 965 } | |
| 966 | |
| 967 /* | |
| 968 * This function is used very often, keep it fast!!!! | |
| 969 * | |
| 970 * If "headp" not NULL, set *headp to the size of what we for 'showbreak' | |
| 971 * string at start of line. Warning: *headp is only set if it's a non-zero | |
| 972 * value, init to 0 before calling. | |
| 973 */ | |
| 974 int | |
|
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975 win_lbr_chartabsize( |
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976 win_T *wp, |
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977 char_u *line UNUSED, /* start of the line */ |
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978 char_u *s, |
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979 colnr_T col, |
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980 int *headp UNUSED) |
| 7 | 981 { |
| 982 #ifdef FEAT_LINEBREAK | |
| 983 int c; | |
| 984 int size; | |
| 985 colnr_T col2; | |
| 6024 | 986 colnr_T col_adj = 0; /* col + screen size of tab */ |
| 7 | 987 colnr_T colmax; |
| 988 int added; | |
| 989 int mb_added = 0; | |
| 990 int numberextra; | |
| 991 char_u *ps; | |
| 992 int tab_corr = (*s == TAB); | |
| 236 | 993 int n; |
| 7 | 994 |
| 995 /* | |
| 5995 | 996 * No 'linebreak', 'showbreak' and 'breakindent': return quickly. |
| 7 | 997 */ |
| 5995 | 998 if (!wp->w_p_lbr && !wp->w_p_bri && *p_sbr == NUL) |
| 7 | 999 #endif |
| 1000 { | |
| 1001 if (wp->w_p_wrap) | |
| 1002 return win_nolbr_chartabsize(wp, s, col, headp); | |
| 1003 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col) | |
| 1004 } | |
| 1005 | |
| 1006 #ifdef FEAT_LINEBREAK | |
| 1007 /* | |
| 1008 * First get normal size, without 'linebreak' | |
| 1009 */ | |
| 1010 size = win_chartabsize(wp, s, col); | |
| 1011 c = *s; | |
| 6024 | 1012 if (tab_corr) |
| 1013 col_adj = size - 1; | |
| 7 | 1014 |
| 1015 /* | |
| 1016 * If 'linebreak' set check at a blank before a non-blank if the line | |
| 1017 * needs a break here | |
| 1018 */ | |
| 1019 if (wp->w_p_lbr | |
|
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1020 && VIM_ISBREAK(c) |
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1021 && !VIM_ISBREAK((int)s[1]) |
| 7 | 1022 && wp->w_p_wrap |
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1023 && wp->w_width != 0) |
| 7 | 1024 { |
| 1025 /* | |
| 1026 * Count all characters from first non-blank after a blank up to next | |
| 1027 * non-blank after a blank. | |
| 1028 */ | |
| 1029 numberextra = win_col_off(wp); | |
| 1030 col2 = col; | |
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1031 colmax = (colnr_T)(wp->w_width - numberextra - col_adj); |
| 7 | 1032 if (col >= colmax) |
| 236 | 1033 { |
| 6024 | 1034 colmax += col_adj; |
| 1035 n = colmax + win_col_off2(wp); | |
| 236 | 1036 if (n > 0) |
| 6024 | 1037 colmax += (((col - colmax) / n) + 1) * n - col_adj; |
| 236 | 1038 } |
| 1039 | |
| 7 | 1040 for (;;) |
| 1041 { | |
| 1042 ps = s; | |
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1043 MB_PTR_ADV(s); |
| 7 | 1044 c = *s; |
| 1045 if (!(c != NUL | |
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1046 && (VIM_ISBREAK(c) |
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1047 || (!VIM_ISBREAK(c) |
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1048 && (col2 == col || !VIM_ISBREAK((int)*ps)))))) |
| 7 | 1049 break; |
| 1050 | |
| 1051 col2 += win_chartabsize(wp, s, col2); | |
| 1052 if (col2 >= colmax) /* doesn't fit */ | |
| 1053 { | |
| 6024 | 1054 size = colmax - col + col_adj; |
| 7 | 1055 break; |
| 1056 } | |
| 1057 } | |
| 1058 } | |
| 1059 else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1 | |
| 1060 && wp->w_p_wrap && in_win_border(wp, col)) | |
| 1061 { | |
| 1062 ++size; /* Count the ">" in the last column. */ | |
| 1063 mb_added = 1; | |
| 1064 } | |
| 1065 | |
| 1066 /* | |
| 5995 | 1067 * May have to add something for 'breakindent' and/or 'showbreak' |
| 1068 * string at start of line. | |
| 7 | 1069 * Set *headp to the size of what we add. |
| 1070 */ | |
| 1071 added = 0; | |
| 5995 | 1072 if ((*p_sbr != NUL || wp->w_p_bri) && wp->w_p_wrap && col != 0) |
| 7 | 1073 { |
| 6503 | 1074 colnr_T sbrlen = 0; |
| 1075 int numberwidth = win_col_off(wp); | |
| 1076 | |
| 1077 numberextra = numberwidth; | |
| 7 | 1078 col += numberextra + mb_added; |
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1079 if (col >= (colnr_T)wp->w_width) |
| 7 | 1080 { |
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1081 col -= wp->w_width; |
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1082 numberextra = wp->w_width - (numberextra - win_col_off2(wp)); |
| 6503 | 1083 if (col >= numberextra && numberextra > 0) |
| 6312 | 1084 col %= numberextra; |
| 6288 | 1085 if (*p_sbr != NUL) |
| 1086 { | |
| 6503 | 1087 sbrlen = (colnr_T)MB_CHARLEN(p_sbr); |
| 6288 | 1088 if (col >= sbrlen) |
| 1089 col -= sbrlen; | |
| 1090 } | |
| 6503 | 1091 if (col >= numberextra && numberextra > 0) |
| 7 | 1092 col = col % numberextra; |
| 6503 | 1093 else if (col > 0 && numberextra > 0) |
| 1094 col += numberwidth - win_col_off2(wp); | |
| 1095 | |
| 1096 numberwidth -= win_col_off2(wp); | |
| 7 | 1097 } |
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1098 if (col == 0 || col + size + sbrlen > (colnr_T)wp->w_width) |
| 7 | 1099 { |
| 5995 | 1100 added = 0; |
| 1101 if (*p_sbr != NUL) | |
| 6503 | 1102 { |
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1103 if (size + sbrlen + numberwidth > (colnr_T)wp->w_width) |
| 6503 | 1104 { |
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1105 // calculate effective window width |
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1106 int width = (colnr_T)wp->w_width - sbrlen - numberwidth; |
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1107 int prev_width = col |
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1108 ? ((colnr_T)wp->w_width - (sbrlen + col)) : 0; |
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1109 |
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1110 if (width <= 0) |
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1111 width = (colnr_T)1; |
| 6503 | 1112 added += ((size - prev_width) / width) * vim_strsize(p_sbr); |
| 1113 if ((size - prev_width) % width) | |
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1114 // wrapped, add another length of 'sbr' |
| 6503 | 1115 added += vim_strsize(p_sbr); |
| 1116 } | |
| 1117 else | |
| 1118 added += vim_strsize(p_sbr); | |
| 1119 } | |
| 5995 | 1120 if (wp->w_p_bri) |
| 1121 added += get_breakindent_win(wp, line); | |
| 1122 | |
| 6160 | 1123 size += added; |
| 7 | 1124 if (col != 0) |
| 1125 added = 0; | |
| 1126 } | |
| 1127 } | |
| 1128 if (headp != NULL) | |
| 1129 *headp = added + mb_added; | |
| 1130 return size; | |
| 1131 #endif | |
| 1132 } | |
| 1133 | |
| 1134 /* | |
| 1135 * Like win_lbr_chartabsize(), except that we know 'linebreak' is off and | |
| 1136 * 'wrap' is on. This means we need to check for a double-byte character that | |
| 1137 * doesn't fit at the end of the screen line. | |
| 1138 */ | |
| 1139 static int | |
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1140 win_nolbr_chartabsize( |
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1141 win_T *wp, |
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1142 char_u *s, |
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1143 colnr_T col, |
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1144 int *headp) |
| 7 | 1145 { |
| 1146 int n; | |
| 1147 | |
| 1148 if (*s == TAB && (!wp->w_p_list || lcs_tab1)) | |
| 1149 { | |
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1150 # ifdef FEAT_VARTABS |
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1151 return tabstop_padding(col, wp->w_buffer->b_p_ts, |
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1152 wp->w_buffer->b_p_vts_array); |
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1153 # else |
| 7 | 1154 n = wp->w_buffer->b_p_ts; |
| 1155 return (int)(n - (col % n)); | |
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1156 # endif |
| 7 | 1157 } |
| 1158 n = ptr2cells(s); | |
| 1159 /* Add one cell for a double-width character in the last column of the | |
| 1160 * window, displayed with a ">". */ | |
| 1161 if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col)) | |
| 1162 { | |
| 1163 if (headp != NULL) | |
| 1164 *headp = 1; | |
| 1165 return 3; | |
| 1166 } | |
| 1167 return n; | |
| 1168 } | |
| 1169 | |
| 1170 /* | |
| 1171 * Return TRUE if virtual column "vcol" is in the rightmost column of window | |
| 1172 * "wp". | |
| 1173 */ | |
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1174 static int |
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1175 in_win_border(win_T *wp, colnr_T vcol) |
| 7 | 1176 { |
| 1869 | 1177 int width1; /* width of first line (after line number) */ |
| 1178 int width2; /* width of further lines */ | |
| 7 | 1179 |
| 1180 if (wp->w_width == 0) /* there is no border */ | |
| 1181 return FALSE; | |
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1182 width1 = wp->w_width - win_col_off(wp); |
| 1869 | 1183 if ((int)vcol < width1 - 1) |
| 7 | 1184 return FALSE; |
| 1869 | 1185 if ((int)vcol == width1 - 1) |
| 7 | 1186 return TRUE; |
| 1187 width2 = width1 + win_col_off2(wp); | |
| 1970 | 1188 if (width2 <= 0) |
| 1189 return FALSE; | |
| 7 | 1190 return ((vcol - width1) % width2 == width2 - 1); |
| 1191 } | |
| 1192 | |
| 1193 /* | |
| 1194 * Get virtual column number of pos. | |
| 1195 * start: on the first position of this character (TAB, ctrl) | |
| 1196 * cursor: where the cursor is on this character (first char, except for TAB) | |
| 1197 * end: on the last position of this character (TAB, ctrl) | |
| 1198 * | |
| 1199 * This is used very often, keep it fast! | |
| 1200 */ | |
| 1201 void | |
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1202 getvcol( |
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1203 win_T *wp, |
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1204 pos_T *pos, |
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1205 colnr_T *start, |
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1206 colnr_T *cursor, |
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1207 colnr_T *end) |
| 7 | 1208 { |
| 1209 colnr_T vcol; | |
| 1210 char_u *ptr; /* points to current char */ | |
| 1211 char_u *posptr; /* points to char at pos->col */ | |
| 5995 | 1212 char_u *line; /* start of the line */ |
| 7 | 1213 int incr; |
| 1214 int head; | |
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1215 #ifdef FEAT_VARTABS |
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1216 int *vts = wp->w_buffer->b_p_vts_array; |
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1217 #endif |
| 7 | 1218 int ts = wp->w_buffer->b_p_ts; |
| 1219 int c; | |
| 1220 | |
| 1221 vcol = 0; | |
| 5995 | 1222 line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
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1223 if (pos->col == MAXCOL) |
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1224 posptr = NULL; /* continue until the NUL */ |
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1225 else |
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1226 { |
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1227 /* Special check for an empty line, which can happen on exit, when |
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1228 * ml_get_buf() always returns an empty string. */ |
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1229 if (*ptr == NUL) |
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1230 pos->col = 0; |
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1231 posptr = ptr + pos->col; |
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1232 if (has_mbyte) |
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1233 /* always start on the first byte */ |
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1234 posptr -= (*mb_head_off)(line, posptr); |
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1235 } |
| 7 | 1236 |
| 1237 /* | |
| 1238 * This function is used very often, do some speed optimizations. | |
| 5995 | 1239 * When 'list', 'linebreak', 'showbreak' and 'breakindent' are not set |
| 1240 * use a simple loop. | |
| 7 | 1241 * Also use this when 'list' is set but tabs take their normal size. |
| 1242 */ | |
| 1243 if ((!wp->w_p_list || lcs_tab1 != NUL) | |
| 1244 #ifdef FEAT_LINEBREAK | |
| 5995 | 1245 && !wp->w_p_lbr && *p_sbr == NUL && !wp->w_p_bri |
| 7 | 1246 #endif |
| 1247 ) | |
| 1248 { | |
| 1249 for (;;) | |
| 1250 { | |
| 1251 head = 0; | |
| 1252 c = *ptr; | |
| 1253 /* make sure we don't go past the end of the line */ | |
| 1254 if (c == NUL) | |
| 1255 { | |
| 1256 incr = 1; /* NUL at end of line only takes one column */ | |
| 1257 break; | |
| 1258 } | |
| 1259 /* A tab gets expanded, depending on the current column */ | |
| 1260 if (c == TAB) | |
|
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1261 #ifdef FEAT_VARTABS |
|
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1262 incr = tabstop_padding(vcol, ts, vts); |
|
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1263 #else |
| 7 | 1264 incr = ts - (vcol % ts); |
|
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|
1265 #endif |
| 7 | 1266 else |
| 1267 { | |
| 1268 if (has_mbyte) | |
| 1269 { | |
| 1270 /* For utf-8, if the byte is >= 0x80, need to look at | |
| 1271 * further bytes to find the cell width. */ | |
| 1272 if (enc_utf8 && c >= 0x80) | |
| 1273 incr = utf_ptr2cells(ptr); | |
| 1274 else | |
|
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|
1275 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1276 |
| 1277 /* If a double-cell char doesn't fit at the end of a line | |
| 1278 * it wraps to the next line, it's like this char is three | |
| 1279 * cells wide. */ | |
| 1546 | 1280 if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1 |
| 1281 && in_win_border(wp, vcol)) | |
| 7 | 1282 { |
| 1283 ++incr; | |
| 1284 head = 1; | |
| 1285 } | |
| 1286 } | |
| 1287 else | |
|
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1288 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1289 } |
| 1290 | |
|
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1291 if (posptr != NULL && ptr >= posptr) /* character at pos->col */ |
| 7 | 1292 break; |
| 1293 | |
| 1294 vcol += incr; | |
|
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1295 MB_PTR_ADV(ptr); |
| 7 | 1296 } |
| 1297 } | |
| 1298 else | |
| 1299 { | |
| 1300 for (;;) | |
| 1301 { | |
| 1302 /* A tab gets expanded, depending on the current column */ | |
| 1303 head = 0; | |
| 5995 | 1304 incr = win_lbr_chartabsize(wp, line, ptr, vcol, &head); |
| 7 | 1305 /* make sure we don't go past the end of the line */ |
| 1306 if (*ptr == NUL) | |
| 1307 { | |
| 1308 incr = 1; /* NUL at end of line only takes one column */ | |
| 1309 break; | |
| 1310 } | |
| 1311 | |
|
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|
1312 if (posptr != NULL && ptr >= posptr) /* character at pos->col */ |
| 7 | 1313 break; |
| 1314 | |
| 1315 vcol += incr; | |
|
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|
1316 MB_PTR_ADV(ptr); |
| 7 | 1317 } |
| 1318 } | |
| 1319 if (start != NULL) | |
| 1320 *start = vcol + head; | |
| 1321 if (end != NULL) | |
| 1322 *end = vcol + incr - 1; | |
| 1323 if (cursor != NULL) | |
| 1324 { | |
| 1325 if (*ptr == TAB | |
| 1326 && (State & NORMAL) | |
| 1327 && !wp->w_p_list | |
| 1328 && !virtual_active() | |
|
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1329 && !(VIsual_active |
|
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1330 && (*p_sel == 'e' || LTOREQ_POS(*pos, VIsual))) |
| 7 | 1331 ) |
| 1332 *cursor = vcol + incr - 1; /* cursor at end */ | |
| 1333 else | |
| 1334 *cursor = vcol + head; /* cursor at start */ | |
| 1335 } | |
| 1336 } | |
| 1337 | |
| 1338 /* | |
| 1339 * Get virtual cursor column in the current window, pretending 'list' is off. | |
| 1340 */ | |
| 1341 colnr_T | |
|
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|
1342 getvcol_nolist(pos_T *posp) |
| 7 | 1343 { |
| 1344 int list_save = curwin->w_p_list; | |
| 1345 colnr_T vcol; | |
| 1346 | |
| 1347 curwin->w_p_list = FALSE; | |
|
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|
1348 if (posp->coladd) |
|
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|
1349 getvvcol(curwin, posp, NULL, &vcol, NULL); |
|
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|
1350 else |
|
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|
1351 getvcol(curwin, posp, NULL, &vcol, NULL); |
| 7 | 1352 curwin->w_p_list = list_save; |
| 1353 return vcol; | |
| 1354 } | |
| 1355 | |
| 1356 /* | |
| 1357 * Get virtual column in virtual mode. | |
| 1358 */ | |
| 1359 void | |
|
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1360 getvvcol( |
|
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1361 win_T *wp, |
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|
1362 pos_T *pos, |
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1363 colnr_T *start, |
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1364 colnr_T *cursor, |
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|
1365 colnr_T *end) |
| 7 | 1366 { |
| 1367 colnr_T col; | |
| 1368 colnr_T coladd; | |
| 1369 colnr_T endadd; | |
| 1370 char_u *ptr; | |
| 1371 | |
| 1372 if (virtual_active()) | |
| 1373 { | |
| 1374 /* For virtual mode, only want one value */ | |
| 1375 getvcol(wp, pos, &col, NULL, NULL); | |
| 1376 | |
| 1377 coladd = pos->coladd; | |
| 1378 endadd = 0; | |
| 1379 /* Cannot put the cursor on part of a wide character. */ | |
| 1380 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); | |
| 1869 | 1381 if (pos->col < (colnr_T)STRLEN(ptr)) |
| 7 | 1382 { |
| 1383 int c = (*mb_ptr2char)(ptr + pos->col); | |
| 1384 | |
| 1385 if (c != TAB && vim_isprintc(c)) | |
| 1386 { | |
| 1869 | 1387 endadd = (colnr_T)(char2cells(c) - 1); |
| 557 | 1388 if (coladd > endadd) /* past end of line */ |
| 1389 endadd = 0; | |
| 7 | 1390 else |
| 1391 coladd = 0; | |
| 1392 } | |
| 1393 } | |
| 1394 col += coladd; | |
| 1395 if (start != NULL) | |
| 1396 *start = col; | |
| 1397 if (cursor != NULL) | |
| 1398 *cursor = col; | |
| 1399 if (end != NULL) | |
| 1400 *end = col + endadd; | |
| 1401 } | |
| 1402 else | |
| 1403 getvcol(wp, pos, start, cursor, end); | |
| 1404 } | |
| 1405 | |
| 1406 /* | |
| 1407 * Get the leftmost and rightmost virtual column of pos1 and pos2. | |
| 1408 * Used for Visual block mode. | |
| 1409 */ | |
| 1410 void | |
|
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|
1411 getvcols( |
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|
1412 win_T *wp, |
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1413 pos_T *pos1, |
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1414 pos_T *pos2, |
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1415 colnr_T *left, |
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|
1416 colnr_T *right) |
| 7 | 1417 { |
| 1418 colnr_T from1, from2, to1, to2; | |
| 1419 | |
|
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1420 if (LT_POSP(pos1, pos2)) |
| 7 | 1421 { |
| 1422 getvvcol(wp, pos1, &from1, NULL, &to1); | |
| 1423 getvvcol(wp, pos2, &from2, NULL, &to2); | |
| 1424 } | |
| 1425 else | |
| 1426 { | |
| 1427 getvvcol(wp, pos2, &from1, NULL, &to1); | |
| 1428 getvvcol(wp, pos1, &from2, NULL, &to2); | |
| 1429 } | |
| 1430 if (from2 < from1) | |
| 1431 *left = from2; | |
| 1432 else | |
| 1433 *left = from1; | |
| 1434 if (to2 > to1) | |
| 1435 { | |
| 1436 if (*p_sel == 'e' && from2 - 1 >= to1) | |
| 1437 *right = from2 - 1; | |
| 1438 else | |
| 1439 *right = to2; | |
| 1440 } | |
| 1441 else | |
| 1442 *right = to1; | |
| 1443 } | |
| 1444 | |
| 1445 /* | |
| 1446 * skipwhite: skip over ' ' and '\t'. | |
| 1447 */ | |
| 1448 char_u * | |
|
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1449 skipwhite(char_u *q) |
| 7 | 1450 { |
| 1687 | 1451 char_u *p = q; |
| 1452 | |
|
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1453 while (VIM_ISWHITE(*p)) /* skip to next non-white */ |
| 7 | 1454 ++p; |
| 1455 return p; | |
| 1456 } | |
| 1457 | |
| 1458 /* | |
|
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1459 * getwhitecols: return the number of whitespace |
|
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1460 * columns (bytes) at the start of a given line |
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1461 */ |
|
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1462 int |
|
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1463 getwhitecols_curline() |
|
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1464 { |
|
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1465 return getwhitecols(ml_get_curline()); |
|
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1466 } |
|
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1467 |
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1468 int |
|
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1469 getwhitecols(char_u *p) |
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1470 { |
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1471 return skipwhite(p) - p; |
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1472 } |
|
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1473 |
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1474 /* |
| 293 | 1475 * skip over digits |
| 7 | 1476 */ |
| 1477 char_u * | |
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1478 skipdigits(char_u *q) |
| 7 | 1479 { |
| 1687 | 1480 char_u *p = q; |
| 1481 | |
| 7 | 1482 while (VIM_ISDIGIT(*p)) /* skip to next non-digit */ |
| 1483 ++p; | |
| 1484 return p; | |
| 1485 } | |
| 1486 | |
| 741 | 1487 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO) |
| 301 | 1488 /* |
|
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1489 * skip over binary digits |
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1490 */ |
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1491 char_u * |
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1492 skipbin(char_u *q) |
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1493 { |
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1494 char_u *p = q; |
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1495 |
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1496 while (vim_isbdigit(*p)) /* skip to next non-digit */ |
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1497 ++p; |
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1498 return p; |
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1499 } |
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1500 |
|
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1501 /* |
| 301 | 1502 * skip over digits and hex characters |
| 1503 */ | |
| 1504 char_u * | |
|
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1505 skiphex(char_u *q) |
| 301 | 1506 { |
| 1687 | 1507 char_u *p = q; |
| 1508 | |
| 301 | 1509 while (vim_isxdigit(*p)) /* skip to next non-digit */ |
| 1510 ++p; | |
| 1511 return p; | |
| 1512 } | |
| 1513 #endif | |
| 1514 | |
| 293 | 1515 /* |
|
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1516 * skip to bin digit (or NUL after the string) |
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1517 */ |
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1518 char_u * |
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1519 skiptobin(char_u *q) |
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1520 { |
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1521 char_u *p = q; |
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1522 |
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1523 while (*p != NUL && !vim_isbdigit(*p)) /* skip to next digit */ |
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1524 ++p; |
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1525 return p; |
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1526 } |
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1527 |
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1528 /* |
| 293 | 1529 * skip to digit (or NUL after the string) |
| 1530 */ | |
| 1531 char_u * | |
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1532 skiptodigit(char_u *q) |
| 293 | 1533 { |
| 1687 | 1534 char_u *p = q; |
| 1535 | |
| 293 | 1536 while (*p != NUL && !VIM_ISDIGIT(*p)) /* skip to next digit */ |
| 1537 ++p; | |
| 1538 return p; | |
| 1539 } | |
| 1540 | |
| 1541 /* | |
| 1542 * skip to hex character (or NUL after the string) | |
| 1543 */ | |
| 1544 char_u * | |
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1545 skiptohex(char_u *q) |
| 293 | 1546 { |
| 1687 | 1547 char_u *p = q; |
| 1548 | |
| 293 | 1549 while (*p != NUL && !vim_isxdigit(*p)) /* skip to next digit */ |
| 1550 ++p; | |
| 1551 return p; | |
| 1552 } | |
| 1553 | |
| 7 | 1554 /* |
| 1555 * Variant of isdigit() that can handle characters > 0x100. | |
| 1556 * We don't use isdigit() here, because on some systems it also considers | |
| 1557 * superscript 1 to be a digit. | |
| 1558 * Use the VIM_ISDIGIT() macro for simple arguments. | |
| 1559 */ | |
| 1560 int | |
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1561 vim_isdigit(int c) |
| 7 | 1562 { |
| 1563 return (c >= '0' && c <= '9'); | |
| 1564 } | |
| 1565 | |
| 1566 /* | |
| 1567 * Variant of isxdigit() that can handle characters > 0x100. | |
| 1568 * We don't use isxdigit() here, because on some systems it also considers | |
| 1569 * superscript 1 to be a digit. | |
| 1570 */ | |
| 1571 int | |
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1572 vim_isxdigit(int c) |
| 7 | 1573 { |
| 1574 return (c >= '0' && c <= '9') | |
| 1575 || (c >= 'a' && c <= 'f') | |
| 1576 || (c >= 'A' && c <= 'F'); | |
| 1577 } | |
| 1578 | |
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1579 /* |
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1580 * Corollary of vim_isdigit and vim_isxdigit() that can handle |
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1581 * characters > 0x100. |
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1582 */ |
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1583 int |
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1584 vim_isbdigit(int c) |
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1585 { |
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1586 return (c == '0' || c == '1'); |
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1587 } |
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1588 |
| 492 | 1589 /* |
| 1590 * Vim's own character class functions. These exist because many library | |
| 1591 * islower()/toupper() etc. do not work properly: they crash when used with | |
| 1592 * invalid values or can't handle latin1 when the locale is C. | |
| 1593 * Speed is most important here. | |
| 1594 */ | |
| 1595 #define LATIN1LOWER 'l' | |
| 1596 #define LATIN1UPPER 'U' | |
| 1597 | |
| 497 | 1598 static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll"; |
| 3533 | 1599 static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xf7\xd8\xd9\xda\xdb\xdc\xdd\xde\xff"; |
| 1600 static char_u latin1lower[257] = " !\"#$%&'()*+,-./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 | 1601 |
| 1602 int | |
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1603 vim_islower(int c) |
| 492 | 1604 { |
| 1605 if (c <= '@') | |
| 1606 return FALSE; | |
| 1607 if (c >= 0x80) | |
| 1608 { | |
| 1609 if (enc_utf8) | |
| 1610 return utf_islower(c); | |
| 1611 if (c >= 0x100) | |
| 1612 { | |
| 1613 #ifdef HAVE_ISWLOWER | |
| 1614 if (has_mbyte) | |
| 1615 return iswlower(c); | |
| 1616 #endif | |
| 1617 /* islower() can't handle these chars and may crash */ | |
| 1618 return FALSE; | |
| 1619 } | |
| 1620 if (enc_latin1like) | |
| 1621 return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER; | |
| 1622 } | |
| 1623 return islower(c); | |
| 1624 } | |
| 1625 | |
| 1626 int | |
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1627 vim_isupper(int c) |
| 492 | 1628 { |
| 1629 if (c <= '@') | |
| 1630 return FALSE; | |
| 1631 if (c >= 0x80) | |
| 1632 { | |
| 1633 if (enc_utf8) | |
| 1634 return utf_isupper(c); | |
| 1635 if (c >= 0x100) | |
| 1636 { | |
| 1637 #ifdef HAVE_ISWUPPER | |
| 1638 if (has_mbyte) | |
| 1639 return iswupper(c); | |
| 1640 #endif | |
| 1641 /* islower() can't handle these chars and may crash */ | |
| 1642 return FALSE; | |
| 1643 } | |
| 1644 if (enc_latin1like) | |
| 1645 return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER; | |
| 1646 } | |
| 1647 return isupper(c); | |
| 1648 } | |
| 1649 | |
| 1650 int | |
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1651 vim_toupper(int c) |
| 492 | 1652 { |
| 1653 if (c <= '@') | |
| 1654 return c; | |
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1655 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
| 492 | 1656 { |
| 1657 if (enc_utf8) | |
| 1658 return utf_toupper(c); | |
| 1659 if (c >= 0x100) | |
| 1660 { | |
| 1661 #ifdef HAVE_TOWUPPER | |
| 1662 if (has_mbyte) | |
| 1663 return towupper(c); | |
| 1664 #endif | |
| 1665 /* toupper() can't handle these chars and may crash */ | |
| 1666 return c; | |
| 1667 } | |
| 1668 if (enc_latin1like) | |
| 1669 return latin1upper[c]; | |
| 1670 } | |
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1671 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
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1672 return TOUPPER_ASC(c); |
| 492 | 1673 return TOUPPER_LOC(c); |
| 1674 } | |
| 1675 | |
| 1676 int | |
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1677 vim_tolower(int c) |
| 492 | 1678 { |
| 1679 if (c <= '@') | |
| 1680 return c; | |
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1681 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
| 492 | 1682 { |
| 1683 if (enc_utf8) | |
| 1684 return utf_tolower(c); | |
| 1685 if (c >= 0x100) | |
| 1686 { | |
| 1687 #ifdef HAVE_TOWLOWER | |
| 1688 if (has_mbyte) | |
| 1689 return towlower(c); | |
| 1690 #endif | |
| 1691 /* tolower() can't handle these chars and may crash */ | |
| 1692 return c; | |
| 1693 } | |
| 1694 if (enc_latin1like) | |
| 1695 return latin1lower[c]; | |
| 1696 } | |
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1697 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
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1698 return TOLOWER_ASC(c); |
| 492 | 1699 return TOLOWER_LOC(c); |
| 1700 } | |
| 1701 | |
| 7 | 1702 /* |
| 1703 * skiptowhite: skip over text until ' ' or '\t' or NUL. | |
| 1704 */ | |
| 1705 char_u * | |
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1706 skiptowhite(char_u *p) |
| 7 | 1707 { |
| 1708 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1709 ++p; | |
| 1710 return p; | |
| 1711 } | |
| 1712 | |
| 1713 /* | |
| 1714 * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars | |
| 1715 */ | |
| 1716 char_u * | |
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1717 skiptowhite_esc(char_u *p) |
| 7 | 1718 { |
| 1719 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1720 { | |
| 1721 if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL) | |
| 1722 ++p; | |
| 1723 ++p; | |
| 1724 } | |
| 1725 return p; | |
| 1726 } | |
| 1727 | |
| 1728 /* | |
| 1729 * Getdigits: Get a number from a string and skip over it. | |
| 1730 * Note: the argument is a pointer to a char_u pointer! | |
| 1731 */ | |
| 1732 long | |
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1733 getdigits(char_u **pp) |
| 7 | 1734 { |
| 1735 char_u *p; | |
| 1736 long retval; | |
| 1737 | |
| 1738 p = *pp; | |
| 1739 retval = atol((char *)p); | |
| 1740 if (*p == '-') /* skip negative sign */ | |
| 1741 ++p; | |
| 1742 p = skipdigits(p); /* skip to next non-digit */ | |
| 1743 *pp = p; | |
| 1744 return retval; | |
| 1745 } | |
| 1746 | |
| 1747 /* | |
| 1748 * Return TRUE if "lbuf" is empty or only contains blanks. | |
| 1749 */ | |
| 1750 int | |
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1751 vim_isblankline(char_u *lbuf) |
| 7 | 1752 { |
| 1753 char_u *p; | |
| 1754 | |
| 1755 p = skipwhite(lbuf); | |
| 1756 return (*p == NUL || *p == '\r' || *p == '\n'); | |
| 1757 } | |
| 1758 | |
| 1759 /* | |
| 1760 * Convert a string into a long and/or unsigned long, taking care of | |
|
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1761 * hexadecimal, octal, and binary numbers. Accepts a '-' sign. |
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1762 * If "prep" is not NULL, returns a flag to indicate the type of the number: |
| 7 | 1763 * 0 decimal |
| 1764 * '0' octal | |
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1765 * 'B' bin |
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1766 * 'b' bin |
| 7 | 1767 * 'X' hex |
| 1768 * 'x' hex | |
| 1769 * If "len" is not NULL, the length of the number in characters is returned. | |
| 1770 * If "nptr" is not NULL, the signed result is returned in it. | |
| 1771 * If "unptr" is not NULL, the unsigned result is returned in it. | |
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1772 * If "what" contains STR2NR_BIN recognize binary numbers |
|
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|
1773 * If "what" contains STR2NR_OCT recognize octal numbers |
|
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|
1774 * If "what" contains STR2NR_HEX recognize hex numbers |
|
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1775 * If "what" contains STR2NR_FORCE always assume bin/oct/hex. |
|
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|
1776 * If maxlen > 0, check at a maximum maxlen chars. |
|
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|
1777 * If strict is TRUE, check the number strictly. return *len = 0 if fail. |
| 7 | 1778 */ |
| 1779 void | |
|
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|
1780 vim_str2nr( |
|
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1781 char_u *start, |
|
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|
1782 int *prep, // return: type of number 0 = decimal, 'x' |
|
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1783 // or 'X' is hex, '0' = octal, 'b' or 'B' |
|
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1784 // is bin |
|
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|
1785 int *len, // return: detected length of number |
|
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|
1786 int what, // what numbers to recognize |
|
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1787 varnumber_T *nptr, // return: signed result |
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1788 uvarnumber_T *unptr, // return: unsigned result |
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1789 int maxlen, // max length of string to check |
|
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1790 int strict) // check strictly |
| 7 | 1791 { |
| 1792 char_u *ptr = start; | |
|
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1793 int pre = 0; // default is decimal |
| 7 | 1794 int negative = FALSE; |
|
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|
1795 uvarnumber_T un = 0; |
| 39 | 1796 int n; |
| 7 | 1797 |
|
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1798 if (len != NULL) |
|
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1799 *len = 0; |
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1800 |
| 7 | 1801 if (ptr[0] == '-') |
| 1802 { | |
| 1803 negative = TRUE; | |
| 1804 ++ptr; | |
| 1805 } | |
| 1806 | |
|
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1807 /* Recognize hex, octal, and bin. */ |
| 6927 | 1808 if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9' |
| 1809 && (maxlen == 0 || maxlen > 1)) | |
| 7 | 1810 { |
|
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1811 pre = ptr[1]; |
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1812 if ((what & STR2NR_HEX) |
|
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1813 && (pre == 'X' || pre == 'x') && vim_isxdigit(ptr[2]) |
|
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1814 && (maxlen == 0 || maxlen > 2)) |
|
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1815 /* hexadecimal */ |
|
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1816 ptr += 2; |
|
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1817 else if ((what & STR2NR_BIN) |
|
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1818 && (pre == 'B' || pre == 'b') && vim_isbdigit(ptr[2]) |
|
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1819 && (maxlen == 0 || maxlen > 2)) |
|
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1820 /* binary */ |
|
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1821 ptr += 2; |
| 7 | 1822 else |
| 1823 { | |
|
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1824 /* decimal or octal, default is decimal */ |
|
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1825 pre = 0; |
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1826 if (what & STR2NR_OCT) |
| 39 | 1827 { |
| 1828 /* Don't interpret "0", "08" or "0129" as octal. */ | |
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1829 for (n = 1; n != maxlen && VIM_ISDIGIT(ptr[n]); ++n) |
| 39 | 1830 { |
| 1831 if (ptr[n] > '7') | |
| 1832 { | |
|
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1833 pre = 0; /* can't be octal */ |
| 39 | 1834 break; |
| 1835 } | |
|
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1836 pre = '0'; /* assume octal */ |
| 39 | 1837 } |
| 1838 } | |
| 7 | 1839 } |
| 1840 } | |
| 1841 | |
|
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1842 // Do the conversion manually to avoid sscanf() quirks. |
| 6927 | 1843 n = 1; |
|
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1844 if (pre == 'B' || pre == 'b' || what == STR2NR_BIN + STR2NR_FORCE) |
|
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1845 { |
|
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1846 /* bin */ |
|
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1847 if (pre != 0) |
|
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1848 n += 2; /* skip over "0b" */ |
|
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1849 while ('0' <= *ptr && *ptr <= '1') |
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1850 { |
|
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1851 /* avoid ubsan error for overflow */ |
|
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1852 if (un <= UVARNUM_MAX / 2) |
|
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1853 un = 2 * un + (uvarnumber_T)(*ptr - '0'); |
|
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1854 else |
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1855 un = UVARNUM_MAX; |
|
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1856 ++ptr; |
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|
1857 if (n++ == maxlen) |
|
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1858 break; |
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1859 } |
|
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1860 } |
|
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1861 else if (pre == '0' || what == STR2NR_OCT + STR2NR_FORCE) |
| 7 | 1862 { |
| 293 | 1863 /* octal */ |
| 1864 while ('0' <= *ptr && *ptr <= '7') | |
| 7 | 1865 { |
|
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1866 /* avoid ubsan error for overflow */ |
|
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1867 if (un <= UVARNUM_MAX / 8) |
|
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1868 un = 8 * un + (uvarnumber_T)(*ptr - '0'); |
|
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1869 else |
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1870 un = UVARNUM_MAX; |
| 293 | 1871 ++ptr; |
| 6927 | 1872 if (n++ == maxlen) |
| 1873 break; | |
| 7 | 1874 } |
| 293 | 1875 } |
|
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1876 else if (pre != 0 || what == STR2NR_HEX + STR2NR_FORCE) |
| 293 | 1877 { |
| 1878 /* hex */ | |
|
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1879 if (pre != 0) |
|
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1880 n += 2; /* skip over "0x" */ |
| 293 | 1881 while (vim_isxdigit(*ptr)) |
| 7 | 1882 { |
|
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1883 /* avoid ubsan error for overflow */ |
|
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|
1884 if (un <= UVARNUM_MAX / 16) |
|
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1885 un = 16 * un + (uvarnumber_T)hex2nr(*ptr); |
|
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1886 else |
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1887 un = UVARNUM_MAX; |
| 293 | 1888 ++ptr; |
| 6927 | 1889 if (n++ == maxlen) |
| 1890 break; | |
| 7 | 1891 } |
| 1892 } | |
| 1893 else | |
| 1894 { | |
| 1895 /* decimal */ | |
| 1896 while (VIM_ISDIGIT(*ptr)) | |
| 1897 { | |
|
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1898 uvarnumber_T digit = (uvarnumber_T)(*ptr - '0'); |
|
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1899 |
|
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1900 /* avoid ubsan error for overflow */ |
|
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1901 if (un < UVARNUM_MAX / 10 |
|
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1902 || (un == UVARNUM_MAX / 10 && digit <= UVARNUM_MAX % 10)) |
|
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|
1903 un = 10 * un + digit; |
|
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1904 else |
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1905 un = UVARNUM_MAX; |
| 7 | 1906 ++ptr; |
| 6927 | 1907 if (n++ == maxlen) |
| 1908 break; | |
| 7 | 1909 } |
| 1910 } | |
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1911 // Check for an alpha-numeric character immediately following, that is |
|
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1912 // most likely a typo. |
|
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1913 if (strict && n - 1 != maxlen && ASCII_ISALNUM(*ptr)) |
|
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1914 return; |
| 7 | 1915 |
|
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1916 if (prep != NULL) |
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1917 *prep = pre; |
| 7 | 1918 if (len != NULL) |
| 1919 *len = (int)(ptr - start); | |
| 1920 if (nptr != NULL) | |
| 16 | 1921 { |
| 1922 if (negative) /* account for leading '-' for decimal numbers */ | |
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1923 { |
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1924 /* avoid ubsan error for overflow */ |
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1925 if (un > VARNUM_MAX) |
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1926 *nptr = VARNUM_MIN; |
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1927 else |
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1928 *nptr = -(varnumber_T)un; |
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1929 } |
| 16 | 1930 else |
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1931 { |
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1932 if (un > VARNUM_MAX) |
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1933 un = VARNUM_MAX; |
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1934 *nptr = (varnumber_T)un; |
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1935 } |
| 16 | 1936 } |
| 7 | 1937 if (unptr != NULL) |
| 1938 *unptr = un; | |
| 1939 } | |
| 1940 | |
| 1941 /* | |
| 1942 * Return the value of a single hex character. | |
| 1943 * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'. | |
| 1944 */ | |
| 1945 int | |
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1946 hex2nr(int c) |
| 7 | 1947 { |
| 1948 if (c >= 'a' && c <= 'f') | |
| 1949 return c - 'a' + 10; | |
| 1950 if (c >= 'A' && c <= 'F') | |
| 1951 return c - 'A' + 10; | |
| 1952 return c - '0'; | |
| 1953 } | |
| 1954 | |
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1955 #if defined(FEAT_TERMRESPONSE) || defined(FEAT_GUI_GTK) || defined(PROTO) |
| 7 | 1956 /* |
| 1957 * Convert two hex characters to a byte. | |
| 1958 * Return -1 if one of the characters is not hex. | |
| 1959 */ | |
| 1960 int | |
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1961 hexhex2nr(char_u *p) |
| 7 | 1962 { |
| 1963 if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1])) | |
| 1964 return -1; | |
| 1965 return (hex2nr(p[0]) << 4) + hex2nr(p[1]); | |
| 1966 } | |
| 1967 #endif | |
| 1968 | |
| 1969 /* | |
| 1970 * Return TRUE if "str" starts with a backslash that should be removed. | |
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1971 * For MS-DOS, MSWIN and OS/2 this is only done when the character after the |
| 7 | 1972 * backslash is not a normal file name character. |
| 1973 * '$' is a valid file name character, we don't remove the backslash before | |
| 1974 * it. This means it is not possible to use an environment variable after a | |
| 1975 * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works. | |
| 1976 * Although "\ name" is valid, the backslash in "Program\ files" must be | |
| 1977 * removed. Assume a file name doesn't start with a space. | |
| 1978 * For multi-byte names, never remove a backslash before a non-ascii | |
| 1979 * character, assume that all multi-byte characters are valid file name | |
| 1980 * characters. | |
| 1981 */ | |
| 1982 int | |
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1983 rem_backslash(char_u *str) |
| 7 | 1984 { |
| 1985 #ifdef BACKSLASH_IN_FILENAME | |
| 1986 return (str[0] == '\\' | |
| 1987 && str[1] < 0x80 | |
| 1988 && (str[1] == ' ' | |
| 1989 || (str[1] != NUL | |
| 1990 && str[1] != '*' | |
| 1991 && str[1] != '?' | |
| 1992 && !vim_isfilec(str[1])))); | |
| 1993 #else | |
| 1994 return (str[0] == '\\' && str[1] != NUL); | |
| 1995 #endif | |
| 1996 } | |
| 1997 | |
| 1998 /* | |
| 1999 * Halve the number of backslashes in a file name argument. | |
| 2000 * For MS-DOS we only do this if the character after the backslash | |
| 2001 * is not a normal file character. | |
| 2002 */ | |
| 2003 void | |
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2004 backslash_halve(char_u *p) |
| 7 | 2005 { |
| 2006 for ( ; *p; ++p) | |
| 2007 if (rem_backslash(p)) | |
| 1621 | 2008 STRMOVE(p, p + 1); |
| 7 | 2009 } |
| 2010 | |
| 2011 /* | |
| 2012 * backslash_halve() plus save the result in allocated memory. | |
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2013 * However, returns "p" when out of memory. |
| 7 | 2014 */ |
| 2015 char_u * | |
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2016 backslash_halve_save(char_u *p) |
| 7 | 2017 { |
| 2018 char_u *res; | |
| 2019 | |
| 2020 res = vim_strsave(p); | |
| 2021 if (res == NULL) | |
| 2022 return p; | |
| 2023 backslash_halve(res); | |
| 2024 return res; | |
| 2025 } | |
| 2026 | |
| 2027 #if (defined(EBCDIC) && defined(FEAT_POSTSCRIPT)) || defined(PROTO) | |
| 2028 /* | |
| 2029 * Table for EBCDIC to ASCII conversion unashamedly taken from xxd.c! | |
| 2030 * The first 64 entries have been added to map control characters defined in | |
| 2031 * ascii.h | |
| 2032 */ | |
| 2033 static char_u ebcdic2ascii_tab[256] = | |
| 2034 { | |
| 2035 0000, 0001, 0002, 0003, 0004, 0011, 0006, 0177, | |
| 2036 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017, | |
| 2037 0020, 0021, 0022, 0023, 0024, 0012, 0010, 0027, | |
| 2038 0030, 0031, 0032, 0033, 0033, 0035, 0036, 0037, | |
| 2039 0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047, | |
| 2040 0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057, | |
| 2041 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, | |
| 2042 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077, | |
| 2043 0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246, | |
| 2044 0247, 0250, 0325, 0056, 0074, 0050, 0053, 0174, | |
| 2045 0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257, | |
| 2046 0260, 0261, 0041, 0044, 0052, 0051, 0073, 0176, | |
| 2047 0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267, | |
| 2048 0270, 0271, 0313, 0054, 0045, 0137, 0076, 0077, | |
| 2049 0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301, | |
| 2050 0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042, | |
| 2051 0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147, | |
| 2052 0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311, | |
| 2053 0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160, | |
| 2054 0161, 0162, 0136, 0314, 0315, 0316, 0317, 0320, | |
| 2055 0321, 0345, 0163, 0164, 0165, 0166, 0167, 0170, | |
| 2056 0171, 0172, 0322, 0323, 0324, 0133, 0326, 0327, | |
| 2057 0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337, | |
| 2058 0340, 0341, 0342, 0343, 0344, 0135, 0346, 0347, | |
| 2059 0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107, | |
| 2060 0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355, | |
| 2061 0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120, | |
| 2062 0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363, | |
| 2063 0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130, | |
| 2064 0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371, | |
| 2065 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, | |
| 2066 0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377 | |
| 2067 }; | |
| 2068 | |
| 2069 /* | |
| 2070 * Convert a buffer worth of characters from EBCDIC to ASCII. Only useful if | |
| 2071 * wanting 7-bit ASCII characters out the other end. | |
| 2072 */ | |
| 2073 void | |
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2074 ebcdic2ascii(char_u *buffer, int len) |
| 7 | 2075 { |
| 2076 int i; | |
| 2077 | |
| 2078 for (i = 0; i < len; i++) | |
| 2079 buffer[i] = ebcdic2ascii_tab[buffer[i]]; | |
| 2080 } | |
| 2081 #endif |