Mercurial > vim
annotate src/charset.c @ 14120:165d4d07e1e5
Added tag v8.1.0077 for changeset b5b0b87f1a398085fb370a20242f5a02d6eb4291
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Mon, 18 Jun 2018 22:45:06 +0200 |
| parents | 47b2db8a5709 |
| children | 2ad722003b36 |
| 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_LINEBREAK | |
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commit https://github.com/vim/vim/commit/f28dbcea371b3a35727d91afc90fb90e0527d78a
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13 static int win_chartabsize(win_T *wp, char_u *p, colnr_T col); |
| 7 | 14 #endif |
| 15 | |
| 16 #ifdef FEAT_MBYTE | |
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17 # if defined(HAVE_WCHAR_H) |
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18 # include <wchar.h> /* for towupper() and towlower() */ |
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19 # endif |
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commit https://github.com/vim/vim/commit/f28dbcea371b3a35727d91afc90fb90e0527d78a
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20 static int win_nolbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp); |
| 7 | 21 #endif |
| 22 | |
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23 static unsigned nr2hex(unsigned c); |
| 7 | 24 |
| 25 static int chartab_initialized = FALSE; | |
| 26 | |
| 27 /* b_chartab[] is an array of 32 bytes, each bit representing one of the | |
| 28 * characters 0-255. */ | |
| 29 #define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7)) | |
| 30 #define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7)) | |
| 31 #define GET_CHARTAB(buf, c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7))) | |
| 32 | |
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commit https://github.com/vim/vim/commit/88e8f9f14434a7cd538d0c159dc432bea869a5bd
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33 /* table used below, see init_chartab() for an explanation */ |
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34 static char_u g_chartab[256]; |
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35 |
| 7 | 36 /* |
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37 * Flags for g_chartab[]. |
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38 */ |
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39 #define CT_CELL_MASK 0x07 /* mask: nr of display cells (1, 2 or 4) */ |
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40 #define CT_PRINT_CHAR 0x10 /* flag: set for printable chars */ |
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41 #define CT_ID_CHAR 0x20 /* flag: set for ID chars */ |
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42 #define CT_FNAME_CHAR 0x40 /* flag: set for file name chars */ |
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43 |
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44 /* |
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45 * Fill g_chartab[]. Also fills curbuf->b_chartab[] with flags for keyword |
| 7 | 46 * characters for current buffer. |
| 47 * | |
| 48 * Depends on the option settings 'iskeyword', 'isident', 'isfname', | |
| 49 * 'isprint' and 'encoding'. | |
| 50 * | |
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51 * The index in g_chartab[] depends on 'encoding': |
| 7 | 52 * - For non-multi-byte index with the byte (same as the character). |
| 53 * - For DBCS index with the first byte. | |
| 54 * - For UTF-8 index with the character (when first byte is up to 0x80 it is | |
| 55 * the same as the character, if the first byte is 0x80 and above it depends | |
| 56 * on further bytes). | |
| 57 * | |
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58 * The contents of g_chartab[]: |
| 7 | 59 * - The lower two bits, masked by CT_CELL_MASK, give the number of display |
| 60 * cells the character occupies (1 or 2). Not valid for UTF-8 above 0x80. | |
| 61 * - CT_PRINT_CHAR bit is set when the character is printable (no need to | |
| 62 * translate the character before displaying it). Note that only DBCS | |
| 63 * characters can have 2 display cells and still be printable. | |
| 64 * - CT_FNAME_CHAR bit is set when the character can be in a file name. | |
| 65 * - CT_ID_CHAR bit is set when the character can be in an identifier. | |
| 66 * | |
| 67 * Return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has an | |
| 68 * error, OK otherwise. | |
| 69 */ | |
| 70 int | |
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71 init_chartab(void) |
| 7 | 72 { |
| 73 return buf_init_chartab(curbuf, TRUE); | |
| 74 } | |
| 75 | |
| 76 int | |
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77 buf_init_chartab( |
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78 buf_T *buf, |
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79 int global) /* FALSE: only set buf->b_chartab[] */ |
| 7 | 80 { |
| 81 int c; | |
| 82 int c2; | |
| 83 char_u *p; | |
| 84 int i; | |
| 85 int tilde; | |
| 86 int do_isalpha; | |
| 87 | |
| 88 if (global) | |
| 89 { | |
| 90 /* | |
| 91 * Set the default size for printable characters: | |
| 92 * From <Space> to '~' is 1 (printable), others are 2 (not printable). | |
| 93 * This also inits all 'isident' and 'isfname' flags to FALSE. | |
| 94 * | |
| 95 * EBCDIC: all chars below ' ' are not printable, all others are | |
| 96 * printable. | |
| 97 */ | |
| 98 c = 0; | |
| 99 while (c < ' ') | |
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100 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| 7 | 101 #ifdef EBCDIC |
| 102 while (c < 255) | |
| 103 #else | |
| 104 while (c <= '~') | |
| 105 #endif | |
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106 g_chartab[c++] = 1 + CT_PRINT_CHAR; |
| 7 | 107 #ifdef FEAT_FKMAP |
| 108 if (p_altkeymap) | |
| 109 { | |
| 110 while (c < YE) | |
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111 g_chartab[c++] = 1 + CT_PRINT_CHAR; |
| 7 | 112 } |
| 113 #endif | |
| 114 while (c < 256) | |
| 115 { | |
| 116 #ifdef FEAT_MBYTE | |
| 117 /* UTF-8: bytes 0xa0 - 0xff are printable (latin1) */ | |
| 118 if (enc_utf8 && c >= 0xa0) | |
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119 g_chartab[c++] = CT_PRINT_CHAR + 1; |
| 7 | 120 /* euc-jp characters starting with 0x8e are single width */ |
| 121 else if (enc_dbcs == DBCS_JPNU && c == 0x8e) | |
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122 g_chartab[c++] = CT_PRINT_CHAR + 1; |
| 7 | 123 /* other double-byte chars can be printable AND double-width */ |
| 124 else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2) | |
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125 g_chartab[c++] = CT_PRINT_CHAR + 2; |
| 7 | 126 else |
| 127 #endif | |
| 128 /* the rest is unprintable by default */ | |
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129 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| 7 | 130 } |
| 131 | |
| 132 #ifdef FEAT_MBYTE | |
| 133 /* Assume that every multi-byte char is a filename character. */ | |
| 134 for (c = 1; c < 256; ++c) | |
| 135 if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1) | |
| 136 || (enc_dbcs == DBCS_JPNU && c == 0x8e) | |
| 137 || (enc_utf8 && c >= 0xa0)) | |
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138 g_chartab[c] |= CT_FNAME_CHAR; |
| 7 | 139 #endif |
| 140 } | |
| 141 | |
| 142 /* | |
| 143 * Init word char flags all to FALSE | |
| 144 */ | |
| 145 vim_memset(buf->b_chartab, 0, (size_t)32); | |
| 146 #ifdef FEAT_MBYTE | |
| 227 | 147 if (enc_dbcs != 0) |
| 148 for (c = 0; c < 256; ++c) | |
| 149 { | |
| 150 /* double-byte characters are probably word characters */ | |
| 151 if (MB_BYTE2LEN(c) == 2) | |
| 152 SET_CHARTAB(buf, c); | |
| 153 } | |
| 7 | 154 #endif |
| 155 | |
| 156 #ifdef FEAT_LISP | |
| 157 /* | |
| 158 * In lisp mode the '-' character is included in keywords. | |
| 159 */ | |
| 160 if (buf->b_p_lisp) | |
| 161 SET_CHARTAB(buf, '-'); | |
| 162 #endif | |
| 163 | |
| 164 /* Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint' | |
| 165 * options Each option is a list of characters, character numbers or | |
| 166 * ranges, separated by commas, e.g.: "200-210,x,#-178,-" | |
| 167 */ | |
| 168 for (i = global ? 0 : 3; i <= 3; ++i) | |
| 169 { | |
| 170 if (i == 0) | |
| 171 p = p_isi; /* first round: 'isident' */ | |
| 172 else if (i == 1) | |
| 173 p = p_isp; /* second round: 'isprint' */ | |
| 174 else if (i == 2) | |
| 175 p = p_isf; /* third round: 'isfname' */ | |
| 176 else /* i == 3 */ | |
| 177 p = buf->b_p_isk; /* fourth round: 'iskeyword' */ | |
| 178 | |
| 179 while (*p) | |
| 180 { | |
| 181 tilde = FALSE; | |
| 182 do_isalpha = FALSE; | |
| 183 if (*p == '^' && p[1] != NUL) | |
| 184 { | |
| 185 tilde = TRUE; | |
| 186 ++p; | |
| 187 } | |
| 188 if (VIM_ISDIGIT(*p)) | |
| 189 c = getdigits(&p); | |
| 190 else | |
| 1955 | 191 #ifdef FEAT_MBYTE |
| 192 if (has_mbyte) | |
| 193 c = mb_ptr2char_adv(&p); | |
| 194 else | |
| 195 #endif | |
| 7 | 196 c = *p++; |
| 197 c2 = -1; | |
| 198 if (*p == '-' && p[1] != NUL) | |
| 199 { | |
| 200 ++p; | |
| 201 if (VIM_ISDIGIT(*p)) | |
| 202 c2 = getdigits(&p); | |
| 203 else | |
| 1979 | 204 #ifdef FEAT_MBYTE |
| 205 if (has_mbyte) | |
| 206 c2 = mb_ptr2char_adv(&p); | |
| 207 else | |
| 208 #endif | |
| 7 | 209 c2 = *p++; |
| 210 } | |
| 1979 | 211 if (c <= 0 || c >= 256 || (c2 < c && c2 != -1) || c2 >= 256 |
| 7 | 212 || !(*p == NUL || *p == ',')) |
| 213 return FAIL; | |
| 214 | |
| 215 if (c2 == -1) /* not a range */ | |
| 216 { | |
| 217 /* | |
| 218 * A single '@' (not "@-@"): | |
| 219 * Decide on letters being ID/printable/keyword chars with | |
| 220 * standard function isalpha(). This takes care of locale for | |
| 221 * single-byte characters). | |
| 222 */ | |
| 223 if (c == '@') | |
| 224 { | |
| 225 do_isalpha = TRUE; | |
| 226 c = 1; | |
| 227 c2 = 255; | |
| 228 } | |
| 229 else | |
| 230 c2 = c; | |
| 231 } | |
| 232 while (c <= c2) | |
| 233 { | |
| 1365 | 234 /* Use the MB_ functions here, because isalpha() doesn't |
| 235 * work properly when 'encoding' is "latin1" and the locale is | |
| 236 * "C". */ | |
| 237 if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c) | |
| 7 | 238 #ifdef FEAT_FKMAP |
| 239 || (p_altkeymap && (F_isalpha(c) || F_isdigit(c))) | |
| 240 #endif | |
| 241 ) | |
| 242 { | |
| 243 if (i == 0) /* (re)set ID flag */ | |
| 244 { | |
| 245 if (tilde) | |
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246 g_chartab[c] &= ~CT_ID_CHAR; |
| 7 | 247 else |
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248 g_chartab[c] |= CT_ID_CHAR; |
| 7 | 249 } |
| 250 else if (i == 1) /* (re)set printable */ | |
| 251 { | |
| 252 if ((c < ' ' | |
| 253 #ifndef EBCDIC | |
| 254 || c > '~' | |
| 255 #endif | |
| 256 #ifdef FEAT_FKMAP | |
| 257 || (p_altkeymap | |
| 258 && (F_isalpha(c) || F_isdigit(c))) | |
| 259 #endif | |
| 260 ) | |
| 261 #ifdef FEAT_MBYTE | |
| 262 /* For double-byte we keep the cell width, so | |
| 263 * that we can detect it from the first byte. */ | |
| 264 && !(enc_dbcs && MB_BYTE2LEN(c) == 2) | |
| 265 #endif | |
| 266 ) | |
| 267 { | |
| 268 if (tilde) | |
| 269 { | |
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270 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) |
| 7 | 271 + ((dy_flags & DY_UHEX) ? 4 : 2); |
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272 g_chartab[c] &= ~CT_PRINT_CHAR; |
| 7 | 273 } |
| 274 else | |
| 275 { | |
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276 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) + 1; |
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277 g_chartab[c] |= CT_PRINT_CHAR; |
| 7 | 278 } |
| 279 } | |
| 280 } | |
| 281 else if (i == 2) /* (re)set fname flag */ | |
| 282 { | |
| 283 if (tilde) | |
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284 g_chartab[c] &= ~CT_FNAME_CHAR; |
| 7 | 285 else |
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286 g_chartab[c] |= CT_FNAME_CHAR; |
| 7 | 287 } |
| 288 else /* i == 3 */ /* (re)set keyword flag */ | |
| 289 { | |
| 290 if (tilde) | |
| 291 RESET_CHARTAB(buf, c); | |
| 292 else | |
| 293 SET_CHARTAB(buf, c); | |
| 294 } | |
| 295 } | |
| 296 ++c; | |
| 297 } | |
| 4096 | 298 |
| 299 c = *p; | |
| 7 | 300 p = skip_to_option_part(p); |
| 4096 | 301 if (c == ',' && *p == NUL) |
| 302 /* Trailing comma is not allowed. */ | |
| 303 return FAIL; | |
| 7 | 304 } |
| 305 } | |
| 306 chartab_initialized = TRUE; | |
| 307 return OK; | |
| 308 } | |
| 309 | |
| 310 /* | |
| 311 * Translate any special characters in buf[bufsize] in-place. | |
| 312 * The result is a string with only printable characters, but if there is not | |
| 313 * enough room, not all characters will be translated. | |
| 314 */ | |
| 315 void | |
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316 trans_characters( |
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317 char_u *buf, |
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318 int bufsize) |
| 7 | 319 { |
| 320 int len; /* length of string needing translation */ | |
| 321 int room; /* room in buffer after string */ | |
| 322 char_u *trs; /* translated character */ | |
| 323 int trs_len; /* length of trs[] */ | |
| 324 | |
| 325 len = (int)STRLEN(buf); | |
| 326 room = bufsize - len; | |
| 327 while (*buf != 0) | |
| 328 { | |
| 329 # ifdef FEAT_MBYTE | |
| 330 /* Assume a multi-byte character doesn't need translation. */ | |
| 474 | 331 if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1) |
| 7 | 332 len -= trs_len; |
| 333 else | |
| 334 # endif | |
| 335 { | |
| 336 trs = transchar_byte(*buf); | |
| 337 trs_len = (int)STRLEN(trs); | |
| 338 if (trs_len > 1) | |
| 339 { | |
| 340 room -= trs_len - 1; | |
| 341 if (room <= 0) | |
| 342 return; | |
| 343 mch_memmove(buf + trs_len, buf + 1, (size_t)len); | |
| 344 } | |
| 345 mch_memmove(buf, trs, (size_t)trs_len); | |
| 346 --len; | |
| 347 } | |
| 348 buf += trs_len; | |
| 349 } | |
| 350 } | |
| 351 | |
| 1097 | 352 #if defined(FEAT_EVAL) || defined(FEAT_TITLE) || defined(FEAT_INS_EXPAND) \ |
| 353 || defined(PROTO) | |
| 7 | 354 /* |
| 355 * Translate a string into allocated memory, replacing special chars with | |
| 356 * printable chars. Returns NULL when out of memory. | |
| 357 */ | |
| 358 char_u * | |
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359 transstr(char_u *s) |
| 7 | 360 { |
| 361 char_u *res; | |
| 362 char_u *p; | |
| 363 #ifdef FEAT_MBYTE | |
| 364 int l, len, c; | |
| 365 char_u hexbuf[11]; | |
| 366 #endif | |
| 367 | |
| 368 #ifdef FEAT_MBYTE | |
| 369 if (has_mbyte) | |
| 370 { | |
| 371 /* Compute the length of the result, taking account of unprintable | |
| 372 * multi-byte characters. */ | |
| 373 len = 0; | |
| 374 p = s; | |
| 375 while (*p != NUL) | |
| 376 { | |
| 474 | 377 if ((l = (*mb_ptr2len)(p)) > 1) |
| 7 | 378 { |
| 379 c = (*mb_ptr2char)(p); | |
| 380 p += l; | |
| 381 if (vim_isprintc(c)) | |
| 382 len += l; | |
| 383 else | |
| 384 { | |
| 385 transchar_hex(hexbuf, c); | |
| 835 | 386 len += (int)STRLEN(hexbuf); |
| 7 | 387 } |
| 388 } | |
| 389 else | |
| 390 { | |
| 391 l = byte2cells(*p++); | |
| 392 if (l > 0) | |
| 393 len += l; | |
| 394 else | |
| 395 len += 4; /* illegal byte sequence */ | |
| 396 } | |
| 397 } | |
| 398 res = alloc((unsigned)(len + 1)); | |
| 399 } | |
| 400 else | |
| 401 #endif | |
| 402 res = alloc((unsigned)(vim_strsize(s) + 1)); | |
| 403 if (res != NULL) | |
| 404 { | |
| 405 *res = NUL; | |
| 406 p = s; | |
| 407 while (*p != NUL) | |
| 408 { | |
| 409 #ifdef FEAT_MBYTE | |
| 474 | 410 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 7 | 411 { |
| 412 c = (*mb_ptr2char)(p); | |
| 413 if (vim_isprintc(c)) | |
| 414 STRNCAT(res, p, l); /* append printable multi-byte char */ | |
| 415 else | |
| 416 transchar_hex(res + STRLEN(res), c); | |
| 417 p += l; | |
| 418 } | |
| 419 else | |
| 420 #endif | |
| 421 STRCAT(res, transchar_byte(*p++)); | |
| 422 } | |
| 423 } | |
| 424 return res; | |
| 425 } | |
| 426 #endif | |
| 427 | |
| 428 #if defined(FEAT_SYN_HL) || defined(FEAT_INS_EXPAND) || defined(PROTO) | |
| 429 /* | |
| 221 | 430 * Convert the string "str[orglen]" to do ignore-case comparing. Uses the |
| 431 * current locale. | |
| 130 | 432 * When "buf" is NULL returns an allocated string (NULL for out-of-memory). |
| 433 * Otherwise puts the result in "buf[buflen]". | |
| 7 | 434 */ |
| 435 char_u * | |
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436 str_foldcase( |
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437 char_u *str, |
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438 int orglen, |
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439 char_u *buf, |
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440 int buflen) |
| 7 | 441 { |
| 442 garray_T ga; | |
| 443 int i; | |
| 130 | 444 int len = orglen; |
| 7 | 445 |
| 446 #define GA_CHAR(i) ((char_u *)ga.ga_data)[i] | |
| 447 #define GA_PTR(i) ((char_u *)ga.ga_data + i) | |
| 130 | 448 #define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i]) |
| 449 #define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + i) | |
| 7 | 450 |
| 130 | 451 /* Copy "str" into "buf" or allocated memory, unmodified. */ |
| 452 if (buf == NULL) | |
| 453 { | |
| 454 ga_init2(&ga, 1, 10); | |
| 455 if (ga_grow(&ga, len + 1) == FAIL) | |
| 456 return NULL; | |
| 457 mch_memmove(ga.ga_data, str, (size_t)len); | |
| 458 ga.ga_len = len; | |
| 459 } | |
| 460 else | |
| 461 { | |
| 462 if (len >= buflen) /* Ugly! */ | |
| 463 len = buflen - 1; | |
| 464 mch_memmove(buf, str, (size_t)len); | |
| 465 } | |
| 466 if (buf == NULL) | |
| 467 GA_CHAR(len) = NUL; | |
| 468 else | |
| 469 buf[len] = NUL; | |
| 7 | 470 |
| 471 /* Make each character lower case. */ | |
| 472 i = 0; | |
| 130 | 473 while (STR_CHAR(i) != NUL) |
| 7 | 474 { |
| 475 #ifdef FEAT_MBYTE | |
| 130 | 476 if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1)) |
| 7 | 477 { |
| 478 if (enc_utf8) | |
| 479 { | |
| 1654 | 480 int c = utf_ptr2char(STR_PTR(i)); |
| 3263 | 481 int olen = utf_ptr2len(STR_PTR(i)); |
| 1654 | 482 int lc = utf_tolower(c); |
| 7 | 483 |
| 1654 | 484 /* Only replace the character when it is not an invalid |
| 485 * sequence (ASCII character or more than one byte) and | |
| 486 * utf_tolower() doesn't return the original character. */ | |
| 3263 | 487 if ((c < 0x80 || olen > 1) && c != lc) |
| 7 | 488 { |
| 3263 | 489 int nlen = utf_char2len(lc); |
| 7 | 490 |
| 491 /* If the byte length changes need to shift the following | |
| 492 * characters forward or backward. */ | |
| 3263 | 493 if (olen != nlen) |
| 7 | 494 { |
| 3263 | 495 if (nlen > olen) |
| 130 | 496 { |
| 3263 | 497 if (buf == NULL |
| 498 ? ga_grow(&ga, nlen - olen + 1) == FAIL | |
| 499 : len + nlen - olen >= buflen) | |
| 7 | 500 { |
| 501 /* out of memory, keep old char */ | |
| 502 lc = c; | |
| 3263 | 503 nlen = olen; |
| 7 | 504 } |
| 130 | 505 } |
| 3263 | 506 if (olen != nlen) |
| 7 | 507 { |
| 130 | 508 if (buf == NULL) |
| 509 { | |
| 3263 | 510 STRMOVE(GA_PTR(i) + nlen, GA_PTR(i) + olen); |
| 511 ga.ga_len += nlen - olen; | |
| 130 | 512 } |
| 513 else | |
| 514 { | |
| 3263 | 515 STRMOVE(buf + i + nlen, buf + i + olen); |
| 516 len += nlen - olen; | |
| 130 | 517 } |
| 7 | 518 } |
| 519 } | |
| 130 | 520 (void)utf_char2bytes(lc, STR_PTR(i)); |
| 7 | 521 } |
| 522 } | |
| 523 /* skip to next multi-byte char */ | |
| 474 | 524 i += (*mb_ptr2len)(STR_PTR(i)); |
| 7 | 525 } |
| 526 else | |
| 527 #endif | |
| 528 { | |
| 130 | 529 if (buf == NULL) |
| 530 GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i)); | |
| 531 else | |
| 532 buf[i] = TOLOWER_LOC(buf[i]); | |
| 7 | 533 ++i; |
| 534 } | |
| 535 } | |
| 536 | |
| 130 | 537 if (buf == NULL) |
| 538 return (char_u *)ga.ga_data; | |
| 539 return buf; | |
| 7 | 540 } |
| 541 #endif | |
| 542 | |
| 543 /* | |
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544 * Catch 22: g_chartab[] can't be initialized before the options are |
| 7 | 545 * initialized, and initializing options may cause transchar() to be called! |
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546 * When chartab_initialized == FALSE don't use g_chartab[]. |
| 7 | 547 * Does NOT work for multi-byte characters, c must be <= 255. |
| 548 * Also doesn't work for the first byte of a multi-byte, "c" must be a | |
| 549 * character! | |
| 550 */ | |
| 551 static char_u transchar_buf[7]; | |
| 552 | |
| 553 char_u * | |
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554 transchar(int c) |
| 7 | 555 { |
| 556 int i; | |
| 557 | |
| 558 i = 0; | |
| 559 if (IS_SPECIAL(c)) /* special key code, display as ~@ char */ | |
| 560 { | |
| 561 transchar_buf[0] = '~'; | |
| 562 transchar_buf[1] = '@'; | |
| 563 i = 2; | |
| 564 c = K_SECOND(c); | |
| 565 } | |
| 566 | |
| 567 if ((!chartab_initialized && ( | |
| 568 #ifdef EBCDIC | |
| 569 (c >= 64 && c < 255) | |
| 570 #else | |
| 571 (c >= ' ' && c <= '~') | |
| 572 #endif | |
| 573 #ifdef FEAT_FKMAP | |
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574 || (p_altkeymap && F_ischar(c)) |
| 7 | 575 #endif |
| 576 )) || (c < 256 && vim_isprintc_strict(c))) | |
| 577 { | |
| 578 /* printable character */ | |
| 579 transchar_buf[i] = c; | |
| 580 transchar_buf[i + 1] = NUL; | |
| 581 } | |
| 582 else | |
| 583 transchar_nonprint(transchar_buf + i, c); | |
| 584 return transchar_buf; | |
| 585 } | |
| 586 | |
| 587 #if defined(FEAT_MBYTE) || defined(PROTO) | |
| 588 /* | |
| 589 * Like transchar(), but called with a byte instead of a character. Checks | |
| 590 * for an illegal UTF-8 byte. | |
| 591 */ | |
| 592 char_u * | |
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593 transchar_byte(int c) |
| 7 | 594 { |
| 595 if (enc_utf8 && c >= 0x80) | |
| 596 { | |
| 597 transchar_nonprint(transchar_buf, c); | |
| 598 return transchar_buf; | |
| 599 } | |
| 600 return transchar(c); | |
| 601 } | |
| 602 #endif | |
| 603 | |
| 604 /* | |
| 605 * Convert non-printable character to two or more printable characters in | |
| 606 * "buf[]". "buf" needs to be able to hold five bytes. | |
| 607 * Does NOT work for multi-byte characters, c must be <= 255. | |
| 608 */ | |
| 609 void | |
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610 transchar_nonprint(char_u *buf, int c) |
| 7 | 611 { |
| 612 if (c == NL) | |
| 613 c = NUL; /* we use newline in place of a NUL */ | |
| 614 else if (c == CAR && get_fileformat(curbuf) == EOL_MAC) | |
| 615 c = NL; /* we use CR in place of NL in this case */ | |
| 616 | |
| 617 if (dy_flags & DY_UHEX) /* 'display' has "uhex" */ | |
| 618 transchar_hex(buf, c); | |
| 619 | |
| 620 #ifdef EBCDIC | |
| 621 /* For EBCDIC only the characters 0-63 and 255 are not printable */ | |
| 622 else if (CtrlChar(c) != 0 || c == DEL) | |
| 623 #else | |
| 624 else if (c <= 0x7f) /* 0x00 - 0x1f and 0x7f */ | |
| 625 #endif | |
| 626 { | |
| 627 buf[0] = '^'; | |
| 628 #ifdef EBCDIC | |
| 629 if (c == DEL) | |
| 630 buf[1] = '?'; /* DEL displayed as ^? */ | |
| 631 else | |
| 632 buf[1] = CtrlChar(c); | |
| 633 #else | |
| 634 buf[1] = c ^ 0x40; /* DEL displayed as ^? */ | |
| 635 #endif | |
| 636 | |
| 637 buf[2] = NUL; | |
| 638 } | |
| 639 #ifdef FEAT_MBYTE | |
| 640 else if (enc_utf8 && c >= 0x80) | |
| 641 { | |
| 642 transchar_hex(buf, c); | |
| 643 } | |
| 644 #endif | |
| 645 #ifndef EBCDIC | |
| 646 else if (c >= ' ' + 0x80 && c <= '~' + 0x80) /* 0xa0 - 0xfe */ | |
| 647 { | |
| 648 buf[0] = '|'; | |
| 649 buf[1] = c - 0x80; | |
| 650 buf[2] = NUL; | |
| 651 } | |
| 652 #else | |
| 653 else if (c < 64) | |
| 654 { | |
| 655 buf[0] = '~'; | |
| 656 buf[1] = MetaChar(c); | |
| 657 buf[2] = NUL; | |
| 658 } | |
| 659 #endif | |
| 660 else /* 0x80 - 0x9f and 0xff */ | |
| 661 { | |
| 662 /* | |
| 663 * TODO: EBCDIC I don't know what to do with this chars, so I display | |
| 664 * them as '~?' for now | |
| 665 */ | |
| 666 buf[0] = '~'; | |
| 667 #ifdef EBCDIC | |
| 668 buf[1] = '?'; /* 0xff displayed as ~? */ | |
| 669 #else | |
| 670 buf[1] = (c - 0x80) ^ 0x40; /* 0xff displayed as ~? */ | |
| 671 #endif | |
| 672 buf[2] = NUL; | |
| 673 } | |
| 674 } | |
| 675 | |
| 676 void | |
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677 transchar_hex(char_u *buf, int c) |
| 7 | 678 { |
| 679 int i = 0; | |
| 680 | |
| 681 buf[0] = '<'; | |
| 682 #ifdef FEAT_MBYTE | |
| 683 if (c > 255) | |
| 684 { | |
| 685 buf[++i] = nr2hex((unsigned)c >> 12); | |
| 686 buf[++i] = nr2hex((unsigned)c >> 8); | |
| 687 } | |
| 688 #endif | |
| 689 buf[++i] = nr2hex((unsigned)c >> 4); | |
| 1869 | 690 buf[++i] = nr2hex((unsigned)c); |
| 7 | 691 buf[++i] = '>'; |
| 692 buf[++i] = NUL; | |
| 693 } | |
| 694 | |
| 695 /* | |
| 696 * Convert the lower 4 bits of byte "c" to its hex character. | |
| 697 * Lower case letters are used to avoid the confusion of <F1> being 0xf1 or | |
| 698 * function key 1. | |
| 699 */ | |
| 1869 | 700 static unsigned |
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701 nr2hex(unsigned c) |
| 7 | 702 { |
| 703 if ((c & 0xf) <= 9) | |
| 704 return (c & 0xf) + '0'; | |
| 705 return (c & 0xf) - 10 + 'a'; | |
| 706 } | |
| 707 | |
| 708 /* | |
| 709 * Return number of display cells occupied by byte "b". | |
| 710 * Caller must make sure 0 <= b <= 255. | |
| 711 * For multi-byte mode "b" must be the first byte of a character. | |
| 712 * A TAB is counted as two cells: "^I". | |
| 713 * For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of | |
| 714 * cells depends on further bytes. | |
| 715 */ | |
| 716 int | |
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717 byte2cells(int b) |
| 7 | 718 { |
| 719 #ifdef FEAT_MBYTE | |
| 720 if (enc_utf8 && b >= 0x80) | |
| 721 return 0; | |
| 722 #endif | |
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723 return (g_chartab[b] & CT_CELL_MASK); |
| 7 | 724 } |
| 725 | |
| 726 /* | |
| 727 * Return number of display cells occupied by character "c". | |
| 728 * "c" can be a special key (negative number) in which case 3 or 4 is returned. | |
| 729 * A TAB is counted as two cells: "^I" or four: "<09>". | |
| 730 */ | |
| 731 int | |
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732 char2cells(int c) |
| 7 | 733 { |
| 734 if (IS_SPECIAL(c)) | |
| 735 return char2cells(K_SECOND(c)) + 2; | |
| 736 #ifdef FEAT_MBYTE | |
| 737 if (c >= 0x80) | |
| 738 { | |
| 739 /* UTF-8: above 0x80 need to check the value */ | |
| 740 if (enc_utf8) | |
| 741 return utf_char2cells(c); | |
| 742 /* DBCS: double-byte means double-width, except for euc-jp with first | |
| 743 * byte 0x8e */ | |
| 744 if (enc_dbcs != 0 && c >= 0x100) | |
| 745 { | |
| 746 if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e) | |
| 747 return 1; | |
| 748 return 2; | |
| 749 } | |
| 750 } | |
| 751 #endif | |
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752 return (g_chartab[c & 0xff] & CT_CELL_MASK); |
| 7 | 753 } |
| 754 | |
| 755 /* | |
| 756 * Return number of display cells occupied by character at "*p". | |
| 757 * A TAB is counted as two cells: "^I" or four: "<09>". | |
| 758 */ | |
| 759 int | |
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760 ptr2cells(char_u *p) |
| 7 | 761 { |
| 762 #ifdef FEAT_MBYTE | |
| 763 /* For UTF-8 we need to look at more bytes if the first byte is >= 0x80. */ | |
| 764 if (enc_utf8 && *p >= 0x80) | |
| 765 return utf_ptr2cells(p); | |
| 766 /* For DBCS we can tell the cell count from the first byte. */ | |
| 767 #endif | |
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768 return (g_chartab[*p] & CT_CELL_MASK); |
| 7 | 769 } |
| 770 | |
| 771 /* | |
| 3292 | 772 * Return the number of character cells string "s" will take on the screen, |
| 7 | 773 * counting TABs as two characters: "^I". |
| 774 */ | |
| 775 int | |
|
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776 vim_strsize(char_u *s) |
| 7 | 777 { |
| 778 return vim_strnsize(s, (int)MAXCOL); | |
| 779 } | |
| 780 | |
| 781 /* | |
| 3292 | 782 * Return the number of character cells string "s[len]" will take on the |
| 783 * screen, counting TABs as two characters: "^I". | |
| 7 | 784 */ |
| 785 int | |
|
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786 vim_strnsize(char_u *s, int len) |
| 7 | 787 { |
| 788 int size = 0; | |
| 789 | |
| 790 while (*s != NUL && --len >= 0) | |
| 791 { | |
| 792 #ifdef FEAT_MBYTE | |
| 793 if (has_mbyte) | |
| 794 { | |
| 474 | 795 int l = (*mb_ptr2len)(s); |
| 7 | 796 |
| 797 size += ptr2cells(s); | |
| 798 s += l; | |
| 799 len -= l - 1; | |
| 800 } | |
| 801 else | |
| 802 #endif | |
| 803 size += byte2cells(*s++); | |
| 804 } | |
| 805 return size; | |
| 806 } | |
| 807 | |
| 808 /* | |
| 809 * Return the number of characters 'c' will take on the screen, taking | |
| 810 * into account the size of a tab. | |
| 811 * Use a define to make it fast, this is used very often!!! | |
| 812 * Also see getvcol() below. | |
| 813 */ | |
| 814 | |
| 815 #define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ | |
| 816 if (*(p) == TAB && (!(wp)->w_p_list || lcs_tab1)) \ | |
| 817 { \ | |
| 818 int ts; \ | |
| 819 ts = (buf)->b_p_ts; \ | |
| 820 return (int)(ts - (col % ts)); \ | |
| 821 } \ | |
| 822 else \ | |
| 823 return ptr2cells(p); | |
| 824 | |
| 825 int | |
|
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826 chartabsize(char_u *p, colnr_T col) |
| 7 | 827 { |
| 828 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col) | |
| 829 } | |
| 830 | |
| 831 #ifdef FEAT_LINEBREAK | |
| 832 static int | |
|
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833 win_chartabsize(win_T *wp, char_u *p, colnr_T col) |
| 7 | 834 { |
| 835 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col) | |
| 836 } | |
| 837 #endif | |
| 838 | |
| 839 /* | |
|
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840 * Return the number of characters the string 's' will take on the screen, |
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841 * taking into account the size of a tab. |
| 7 | 842 */ |
| 843 int | |
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844 linetabsize(char_u *s) |
| 7 | 845 { |
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846 return linetabsize_col(0, s); |
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847 } |
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848 |
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849 /* |
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850 * Like linetabsize(), but starting at column "startcol". |
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851 */ |
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852 int |
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853 linetabsize_col(int startcol, char_u *s) |
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854 { |
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855 colnr_T col = startcol; |
| 5995 | 856 char_u *line = s; /* pointer to start of line, for breakindent */ |
| 7 | 857 |
| 858 while (*s != NUL) | |
| 5995 | 859 col += lbr_chartabsize_adv(line, &s, col); |
| 7 | 860 return (int)col; |
| 861 } | |
| 862 | |
| 863 /* | |
| 864 * Like linetabsize(), but for a given window instead of the current one. | |
| 865 */ | |
| 866 int | |
|
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867 win_linetabsize(win_T *wp, char_u *line, colnr_T len) |
| 7 | 868 { |
| 869 colnr_T col = 0; | |
| 870 char_u *s; | |
| 871 | |
| 5995 | 872 for (s = line; *s != NUL && (len == MAXCOL || s < line + len); |
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873 MB_PTR_ADV(s)) |
| 5995 | 874 col += win_lbr_chartabsize(wp, line, s, col, NULL); |
| 7 | 875 return (int)col; |
| 876 } | |
| 877 | |
| 878 /* | |
| 42 | 879 * Return TRUE if 'c' is a normal identifier character: |
| 880 * Letters and characters from the 'isident' option. | |
| 7 | 881 */ |
| 882 int | |
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883 vim_isIDc(int c) |
| 7 | 884 { |
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885 return (c > 0 && c < 0x100 && (g_chartab[c] & CT_ID_CHAR)); |
| 7 | 886 } |
| 887 | |
| 888 /* | |
| 889 * return TRUE if 'c' is a keyword character: Letters and characters from | |
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890 * 'iskeyword' option for the current buffer. |
| 7 | 891 * For multi-byte characters mb_get_class() is used (builtin rules). |
| 892 */ | |
| 893 int | |
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894 vim_iswordc(int c) |
| 7 | 895 { |
| 4043 | 896 return vim_iswordc_buf(c, curbuf); |
| 897 } | |
| 898 | |
| 899 int | |
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900 vim_iswordc_buf(int c, buf_T *buf) |
| 4043 | 901 { |
| 7 | 902 if (c >= 0x100) |
| 903 { | |
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904 #ifdef FEAT_MBYTE |
| 7 | 905 if (enc_dbcs != 0) |
| 1869 | 906 return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2; |
| 7 | 907 if (enc_utf8) |
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908 return utf_class_buf(c, buf) >= 2; |
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909 #endif |
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910 return FALSE; |
| 7 | 911 } |
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912 return (c > 0 && GET_CHARTAB(buf, c) != 0); |
| 7 | 913 } |
| 914 | |
| 915 /* | |
| 916 * Just like vim_iswordc() but uses a pointer to the (multi-byte) character. | |
| 917 */ | |
| 918 int | |
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919 vim_iswordp(char_u *p) |
| 7 | 920 { |
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921 return vim_iswordp_buf(p, curbuf); |
| 7 | 922 } |
| 923 | |
| 924 int | |
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925 vim_iswordp_buf(char_u *p, buf_T *buf) |
| 7 | 926 { |
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927 int c = *p; |
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928 |
| 4080 | 929 #ifdef FEAT_MBYTE |
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930 if (has_mbyte && MB_BYTE2LEN(c) > 1) |
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931 c = (*mb_ptr2char)(p); |
| 4080 | 932 #endif |
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933 return vim_iswordc_buf(c, buf); |
| 7 | 934 } |
| 935 | |
| 936 /* | |
| 937 * return TRUE if 'c' is a valid file-name character | |
| 938 * Assume characters above 0x100 are valid (multi-byte). | |
| 939 */ | |
| 940 int | |
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941 vim_isfilec(int c) |
| 7 | 942 { |
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943 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_FNAME_CHAR))); |
| 7 | 944 } |
| 945 | |
| 946 /* | |
| 1369 | 947 * return TRUE if 'c' is a valid file-name character or a wildcard character |
| 948 * Assume characters above 0x100 are valid (multi-byte). | |
| 949 * Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]") | |
| 950 * returns false. | |
| 951 */ | |
| 952 int | |
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953 vim_isfilec_or_wc(int c) |
| 1369 | 954 { |
| 955 char_u buf[2]; | |
| 956 | |
| 957 buf[0] = (char_u)c; | |
| 958 buf[1] = NUL; | |
| 959 return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf); | |
| 960 } | |
| 961 | |
| 962 /* | |
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963 * Return TRUE if 'c' is a printable character. |
| 7 | 964 * Assume characters above 0x100 are printable (multi-byte), except for |
| 965 * Unicode. | |
| 966 */ | |
| 967 int | |
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968 vim_isprintc(int c) |
| 7 | 969 { |
| 970 #ifdef FEAT_MBYTE | |
| 971 if (enc_utf8 && c >= 0x100) | |
| 972 return utf_printable(c); | |
| 973 #endif | |
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974 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 975 } |
| 976 | |
| 977 /* | |
| 978 * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head | |
| 979 * byte of a double-byte character. | |
| 980 */ | |
| 981 int | |
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982 vim_isprintc_strict(int c) |
| 7 | 983 { |
| 984 #ifdef FEAT_MBYTE | |
| 985 if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1) | |
| 986 return FALSE; | |
| 987 if (enc_utf8 && c >= 0x100) | |
| 988 return utf_printable(c); | |
| 989 #endif | |
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990 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 991 } |
| 992 | |
| 993 /* | |
| 994 * like chartabsize(), but also check for line breaks on the screen | |
| 995 */ | |
| 996 int | |
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997 lbr_chartabsize( |
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998 char_u *line UNUSED, /* start of the line */ |
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999 unsigned char *s, |
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1000 colnr_T col) |
| 7 | 1001 { |
| 1002 #ifdef FEAT_LINEBREAK | |
| 5995 | 1003 if (!curwin->w_p_lbr && *p_sbr == NUL && !curwin->w_p_bri) |
| 7 | 1004 { |
| 1005 #endif | |
| 1006 #ifdef FEAT_MBYTE | |
| 1007 if (curwin->w_p_wrap) | |
| 1008 return win_nolbr_chartabsize(curwin, s, col, NULL); | |
| 1009 #endif | |
| 1010 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col) | |
| 1011 #ifdef FEAT_LINEBREAK | |
| 1012 } | |
| 5995 | 1013 return win_lbr_chartabsize(curwin, line == NULL ? s : line, s, col, NULL); |
| 7 | 1014 #endif |
| 1015 } | |
| 1016 | |
| 1017 /* | |
| 1018 * Call lbr_chartabsize() and advance the pointer. | |
| 1019 */ | |
| 1020 int | |
|
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1021 lbr_chartabsize_adv( |
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1022 char_u *line, /* start of the line */ |
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1023 char_u **s, |
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1024 colnr_T col) |
| 7 | 1025 { |
| 1026 int retval; | |
| 1027 | |
| 5995 | 1028 retval = lbr_chartabsize(line, *s, col); |
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1029 MB_PTR_ADV(*s); |
| 7 | 1030 return retval; |
| 1031 } | |
| 1032 | |
| 1033 /* | |
| 1034 * This function is used very often, keep it fast!!!! | |
| 1035 * | |
| 1036 * If "headp" not NULL, set *headp to the size of what we for 'showbreak' | |
| 1037 * string at start of line. Warning: *headp is only set if it's a non-zero | |
| 1038 * value, init to 0 before calling. | |
| 1039 */ | |
| 1040 int | |
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1041 win_lbr_chartabsize( |
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1042 win_T *wp, |
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1043 char_u *line UNUSED, /* start of the line */ |
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1044 char_u *s, |
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1045 colnr_T col, |
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1046 int *headp UNUSED) |
| 7 | 1047 { |
| 1048 #ifdef FEAT_LINEBREAK | |
| 1049 int c; | |
| 1050 int size; | |
| 1051 colnr_T col2; | |
| 6024 | 1052 colnr_T col_adj = 0; /* col + screen size of tab */ |
| 7 | 1053 colnr_T colmax; |
| 1054 int added; | |
| 1055 # ifdef FEAT_MBYTE | |
| 1056 int mb_added = 0; | |
| 1057 # else | |
| 1058 # define mb_added 0 | |
| 1059 # endif | |
| 1060 int numberextra; | |
| 1061 char_u *ps; | |
| 1062 int tab_corr = (*s == TAB); | |
| 236 | 1063 int n; |
| 7 | 1064 |
| 1065 /* | |
| 5995 | 1066 * No 'linebreak', 'showbreak' and 'breakindent': return quickly. |
| 7 | 1067 */ |
| 5995 | 1068 if (!wp->w_p_lbr && !wp->w_p_bri && *p_sbr == NUL) |
| 7 | 1069 #endif |
| 1070 { | |
| 1071 #ifdef FEAT_MBYTE | |
| 1072 if (wp->w_p_wrap) | |
| 1073 return win_nolbr_chartabsize(wp, s, col, headp); | |
| 1074 #endif | |
| 1075 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col) | |
| 1076 } | |
| 1077 | |
| 1078 #ifdef FEAT_LINEBREAK | |
| 1079 /* | |
| 1080 * First get normal size, without 'linebreak' | |
| 1081 */ | |
| 1082 size = win_chartabsize(wp, s, col); | |
| 1083 c = *s; | |
| 6024 | 1084 if (tab_corr) |
| 1085 col_adj = size - 1; | |
| 7 | 1086 |
| 1087 /* | |
| 1088 * If 'linebreak' set check at a blank before a non-blank if the line | |
| 1089 * needs a break here | |
| 1090 */ | |
| 1091 if (wp->w_p_lbr | |
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1092 && VIM_ISBREAK(c) |
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1093 && !VIM_ISBREAK((int)s[1]) |
| 7 | 1094 && wp->w_p_wrap |
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1095 && wp->w_width != 0) |
| 7 | 1096 { |
| 1097 /* | |
| 1098 * Count all characters from first non-blank after a blank up to next | |
| 1099 * non-blank after a blank. | |
| 1100 */ | |
| 1101 numberextra = win_col_off(wp); | |
| 1102 col2 = col; | |
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1103 colmax = (colnr_T)(wp->w_width - numberextra - col_adj); |
| 7 | 1104 if (col >= colmax) |
| 236 | 1105 { |
| 6024 | 1106 colmax += col_adj; |
| 1107 n = colmax + win_col_off2(wp); | |
| 236 | 1108 if (n > 0) |
| 6024 | 1109 colmax += (((col - colmax) / n) + 1) * n - col_adj; |
| 236 | 1110 } |
| 1111 | |
| 7 | 1112 for (;;) |
| 1113 { | |
| 1114 ps = s; | |
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1115 MB_PTR_ADV(s); |
| 7 | 1116 c = *s; |
| 1117 if (!(c != NUL | |
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1118 && (VIM_ISBREAK(c) |
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1119 || (!VIM_ISBREAK(c) |
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1120 && (col2 == col || !VIM_ISBREAK((int)*ps)))))) |
| 7 | 1121 break; |
| 1122 | |
| 1123 col2 += win_chartabsize(wp, s, col2); | |
| 1124 if (col2 >= colmax) /* doesn't fit */ | |
| 1125 { | |
| 6024 | 1126 size = colmax - col + col_adj; |
| 7 | 1127 tab_corr = FALSE; |
| 1128 break; | |
| 1129 } | |
| 1130 } | |
| 1131 } | |
| 1132 # ifdef FEAT_MBYTE | |
| 1133 else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1 | |
| 1134 && wp->w_p_wrap && in_win_border(wp, col)) | |
| 1135 { | |
| 1136 ++size; /* Count the ">" in the last column. */ | |
| 1137 mb_added = 1; | |
| 1138 } | |
| 1139 # endif | |
| 1140 | |
| 1141 /* | |
| 5995 | 1142 * May have to add something for 'breakindent' and/or 'showbreak' |
| 1143 * string at start of line. | |
| 7 | 1144 * Set *headp to the size of what we add. |
| 1145 */ | |
| 1146 added = 0; | |
| 5995 | 1147 if ((*p_sbr != NUL || wp->w_p_bri) && wp->w_p_wrap && col != 0) |
| 7 | 1148 { |
| 6503 | 1149 colnr_T sbrlen = 0; |
| 1150 int numberwidth = win_col_off(wp); | |
| 1151 | |
| 1152 numberextra = numberwidth; | |
| 7 | 1153 col += numberextra + mb_added; |
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1154 if (col >= (colnr_T)wp->w_width) |
| 7 | 1155 { |
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1156 col -= wp->w_width; |
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1157 numberextra = wp->w_width - (numberextra - win_col_off2(wp)); |
| 6503 | 1158 if (col >= numberextra && numberextra > 0) |
| 6312 | 1159 col %= numberextra; |
| 6288 | 1160 if (*p_sbr != NUL) |
| 1161 { | |
| 6503 | 1162 sbrlen = (colnr_T)MB_CHARLEN(p_sbr); |
| 6288 | 1163 if (col >= sbrlen) |
| 1164 col -= sbrlen; | |
| 1165 } | |
| 6503 | 1166 if (col >= numberextra && numberextra > 0) |
| 7 | 1167 col = col % numberextra; |
| 6503 | 1168 else if (col > 0 && numberextra > 0) |
| 1169 col += numberwidth - win_col_off2(wp); | |
| 1170 | |
| 1171 numberwidth -= win_col_off2(wp); | |
| 7 | 1172 } |
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1173 if (col == 0 || col + size + sbrlen > (colnr_T)wp->w_width) |
| 7 | 1174 { |
| 5995 | 1175 added = 0; |
| 1176 if (*p_sbr != NUL) | |
| 6503 | 1177 { |
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1178 if (size + sbrlen + numberwidth > (colnr_T)wp->w_width) |
| 6503 | 1179 { |
| 1180 /* calculate effective window width */ | |
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1181 int width = (colnr_T)wp->w_width - sbrlen - numberwidth; |
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1182 int prev_width = col ? ((colnr_T)wp->w_width - (sbrlen + col)) : 0; |
| 6503 | 1183 if (width == 0) |
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1184 width = (colnr_T)wp->w_width; |
| 6503 | 1185 added += ((size - prev_width) / width) * vim_strsize(p_sbr); |
| 1186 if ((size - prev_width) % width) | |
| 1187 /* wrapped, add another length of 'sbr' */ | |
| 1188 added += vim_strsize(p_sbr); | |
| 1189 } | |
| 1190 else | |
| 1191 added += vim_strsize(p_sbr); | |
| 1192 } | |
| 5995 | 1193 if (wp->w_p_bri) |
| 1194 added += get_breakindent_win(wp, line); | |
| 1195 | |
| 6160 | 1196 size += added; |
| 7 | 1197 if (col != 0) |
| 1198 added = 0; | |
| 1199 } | |
| 1200 } | |
| 1201 if (headp != NULL) | |
| 1202 *headp = added + mb_added; | |
| 1203 return size; | |
| 1204 #endif | |
| 1205 } | |
| 1206 | |
| 1207 #if defined(FEAT_MBYTE) || defined(PROTO) | |
| 1208 /* | |
| 1209 * Like win_lbr_chartabsize(), except that we know 'linebreak' is off and | |
| 1210 * 'wrap' is on. This means we need to check for a double-byte character that | |
| 1211 * doesn't fit at the end of the screen line. | |
| 1212 */ | |
| 1213 static int | |
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1214 win_nolbr_chartabsize( |
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1215 win_T *wp, |
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1216 char_u *s, |
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1217 colnr_T col, |
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1218 int *headp) |
| 7 | 1219 { |
| 1220 int n; | |
| 1221 | |
| 1222 if (*s == TAB && (!wp->w_p_list || lcs_tab1)) | |
| 1223 { | |
| 1224 n = wp->w_buffer->b_p_ts; | |
| 1225 return (int)(n - (col % n)); | |
| 1226 } | |
| 1227 n = ptr2cells(s); | |
| 1228 /* Add one cell for a double-width character in the last column of the | |
| 1229 * window, displayed with a ">". */ | |
| 1230 if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col)) | |
| 1231 { | |
| 1232 if (headp != NULL) | |
| 1233 *headp = 1; | |
| 1234 return 3; | |
| 1235 } | |
| 1236 return n; | |
| 1237 } | |
| 1238 | |
| 1239 /* | |
| 1240 * Return TRUE if virtual column "vcol" is in the rightmost column of window | |
| 1241 * "wp". | |
| 1242 */ | |
| 1243 int | |
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1244 in_win_border(win_T *wp, colnr_T vcol) |
| 7 | 1245 { |
| 1869 | 1246 int width1; /* width of first line (after line number) */ |
| 1247 int width2; /* width of further lines */ | |
| 7 | 1248 |
| 1249 if (wp->w_width == 0) /* there is no border */ | |
| 1250 return FALSE; | |
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1251 width1 = wp->w_width - win_col_off(wp); |
| 1869 | 1252 if ((int)vcol < width1 - 1) |
| 7 | 1253 return FALSE; |
| 1869 | 1254 if ((int)vcol == width1 - 1) |
| 7 | 1255 return TRUE; |
| 1256 width2 = width1 + win_col_off2(wp); | |
| 1970 | 1257 if (width2 <= 0) |
| 1258 return FALSE; | |
| 7 | 1259 return ((vcol - width1) % width2 == width2 - 1); |
| 1260 } | |
| 1261 #endif /* FEAT_MBYTE */ | |
| 1262 | |
| 1263 /* | |
| 1264 * Get virtual column number of pos. | |
| 1265 * start: on the first position of this character (TAB, ctrl) | |
| 1266 * cursor: where the cursor is on this character (first char, except for TAB) | |
| 1267 * end: on the last position of this character (TAB, ctrl) | |
| 1268 * | |
| 1269 * This is used very often, keep it fast! | |
| 1270 */ | |
| 1271 void | |
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1272 getvcol( |
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1273 win_T *wp, |
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1274 pos_T *pos, |
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1275 colnr_T *start, |
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1276 colnr_T *cursor, |
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1277 colnr_T *end) |
| 7 | 1278 { |
| 1279 colnr_T vcol; | |
| 1280 char_u *ptr; /* points to current char */ | |
| 1281 char_u *posptr; /* points to char at pos->col */ | |
| 5995 | 1282 char_u *line; /* start of the line */ |
| 7 | 1283 int incr; |
| 1284 int head; | |
| 1285 int ts = wp->w_buffer->b_p_ts; | |
| 1286 int c; | |
| 1287 | |
| 1288 vcol = 0; | |
| 5995 | 1289 line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
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1290 if (pos->col == MAXCOL) |
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1291 posptr = NULL; /* continue until the NUL */ |
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1292 else |
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1293 { |
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1294 /* Special check for an empty line, which can happen on exit, when |
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1295 * ml_get_buf() always returns an empty string. */ |
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1296 if (*ptr == NUL) |
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1297 pos->col = 0; |
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1298 posptr = ptr + pos->col; |
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1299 #ifdef FEAT_MBYTE |
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1300 if (has_mbyte) |
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1301 /* always start on the first byte */ |
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1302 posptr -= (*mb_head_off)(line, posptr); |
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1303 #endif |
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1304 } |
| 7 | 1305 |
| 1306 /* | |
| 1307 * This function is used very often, do some speed optimizations. | |
| 5995 | 1308 * When 'list', 'linebreak', 'showbreak' and 'breakindent' are not set |
| 1309 * use a simple loop. | |
| 7 | 1310 * Also use this when 'list' is set but tabs take their normal size. |
| 1311 */ | |
| 1312 if ((!wp->w_p_list || lcs_tab1 != NUL) | |
| 1313 #ifdef FEAT_LINEBREAK | |
| 5995 | 1314 && !wp->w_p_lbr && *p_sbr == NUL && !wp->w_p_bri |
| 7 | 1315 #endif |
| 1316 ) | |
| 1317 { | |
| 1318 #ifndef FEAT_MBYTE | |
| 1319 head = 0; | |
| 1320 #endif | |
| 1321 for (;;) | |
| 1322 { | |
| 1323 #ifdef FEAT_MBYTE | |
| 1324 head = 0; | |
| 1325 #endif | |
| 1326 c = *ptr; | |
| 1327 /* make sure we don't go past the end of the line */ | |
| 1328 if (c == NUL) | |
| 1329 { | |
| 1330 incr = 1; /* NUL at end of line only takes one column */ | |
| 1331 break; | |
| 1332 } | |
| 1333 /* A tab gets expanded, depending on the current column */ | |
| 1334 if (c == TAB) | |
| 1335 incr = ts - (vcol % ts); | |
| 1336 else | |
| 1337 { | |
| 1338 #ifdef FEAT_MBYTE | |
| 1339 if (has_mbyte) | |
| 1340 { | |
| 1341 /* For utf-8, if the byte is >= 0x80, need to look at | |
| 1342 * further bytes to find the cell width. */ | |
| 1343 if (enc_utf8 && c >= 0x80) | |
| 1344 incr = utf_ptr2cells(ptr); | |
| 1345 else | |
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1346 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1347 |
| 1348 /* If a double-cell char doesn't fit at the end of a line | |
| 1349 * it wraps to the next line, it's like this char is three | |
| 1350 * cells wide. */ | |
| 1546 | 1351 if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1 |
| 1352 && in_win_border(wp, vcol)) | |
| 7 | 1353 { |
| 1354 ++incr; | |
| 1355 head = 1; | |
| 1356 } | |
| 1357 } | |
| 1358 else | |
| 1359 #endif | |
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1360 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1361 } |
| 1362 | |
|
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1363 if (posptr != NULL && ptr >= posptr) /* character at pos->col */ |
| 7 | 1364 break; |
| 1365 | |
| 1366 vcol += incr; | |
|
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1367 MB_PTR_ADV(ptr); |
| 7 | 1368 } |
| 1369 } | |
| 1370 else | |
| 1371 { | |
| 1372 for (;;) | |
| 1373 { | |
| 1374 /* A tab gets expanded, depending on the current column */ | |
| 1375 head = 0; | |
| 5995 | 1376 incr = win_lbr_chartabsize(wp, line, ptr, vcol, &head); |
| 7 | 1377 /* make sure we don't go past the end of the line */ |
| 1378 if (*ptr == NUL) | |
| 1379 { | |
| 1380 incr = 1; /* NUL at end of line only takes one column */ | |
| 1381 break; | |
| 1382 } | |
| 1383 | |
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1384 if (posptr != NULL && ptr >= posptr) /* character at pos->col */ |
| 7 | 1385 break; |
| 1386 | |
| 1387 vcol += incr; | |
|
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1388 MB_PTR_ADV(ptr); |
| 7 | 1389 } |
| 1390 } | |
| 1391 if (start != NULL) | |
| 1392 *start = vcol + head; | |
| 1393 if (end != NULL) | |
| 1394 *end = vcol + incr - 1; | |
| 1395 if (cursor != NULL) | |
| 1396 { | |
| 1397 if (*ptr == TAB | |
| 1398 && (State & NORMAL) | |
| 1399 && !wp->w_p_list | |
| 1400 && !virtual_active() | |
|
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1401 && !(VIsual_active |
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1402 && (*p_sel == 'e' || LTOREQ_POS(*pos, VIsual))) |
| 7 | 1403 ) |
| 1404 *cursor = vcol + incr - 1; /* cursor at end */ | |
| 1405 else | |
| 1406 *cursor = vcol + head; /* cursor at start */ | |
| 1407 } | |
| 1408 } | |
| 1409 | |
| 1410 /* | |
| 1411 * Get virtual cursor column in the current window, pretending 'list' is off. | |
| 1412 */ | |
| 1413 colnr_T | |
|
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1414 getvcol_nolist(pos_T *posp) |
| 7 | 1415 { |
| 1416 int list_save = curwin->w_p_list; | |
| 1417 colnr_T vcol; | |
| 1418 | |
| 1419 curwin->w_p_list = FALSE; | |
|
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1420 #ifdef FEAT_VIRTUALEDIT |
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1421 if (posp->coladd) |
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1422 getvvcol(curwin, posp, NULL, &vcol, NULL); |
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1423 else |
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1424 #endif |
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1425 getvcol(curwin, posp, NULL, &vcol, NULL); |
| 7 | 1426 curwin->w_p_list = list_save; |
| 1427 return vcol; | |
| 1428 } | |
| 1429 | |
| 1430 #if defined(FEAT_VIRTUALEDIT) || defined(PROTO) | |
| 1431 /* | |
| 1432 * Get virtual column in virtual mode. | |
| 1433 */ | |
| 1434 void | |
|
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1435 getvvcol( |
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1436 win_T *wp, |
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1437 pos_T *pos, |
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1438 colnr_T *start, |
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1439 colnr_T *cursor, |
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1440 colnr_T *end) |
| 7 | 1441 { |
| 1442 colnr_T col; | |
| 1443 colnr_T coladd; | |
| 1444 colnr_T endadd; | |
| 1445 # ifdef FEAT_MBYTE | |
| 1446 char_u *ptr; | |
| 1447 # endif | |
| 1448 | |
| 1449 if (virtual_active()) | |
| 1450 { | |
| 1451 /* For virtual mode, only want one value */ | |
| 1452 getvcol(wp, pos, &col, NULL, NULL); | |
| 1453 | |
| 1454 coladd = pos->coladd; | |
| 1455 endadd = 0; | |
| 1456 # ifdef FEAT_MBYTE | |
| 1457 /* Cannot put the cursor on part of a wide character. */ | |
| 1458 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); | |
| 1869 | 1459 if (pos->col < (colnr_T)STRLEN(ptr)) |
| 7 | 1460 { |
| 1461 int c = (*mb_ptr2char)(ptr + pos->col); | |
| 1462 | |
| 1463 if (c != TAB && vim_isprintc(c)) | |
| 1464 { | |
| 1869 | 1465 endadd = (colnr_T)(char2cells(c) - 1); |
| 557 | 1466 if (coladd > endadd) /* past end of line */ |
| 1467 endadd = 0; | |
| 7 | 1468 else |
| 1469 coladd = 0; | |
| 1470 } | |
| 1471 } | |
| 1472 # endif | |
| 1473 col += coladd; | |
| 1474 if (start != NULL) | |
| 1475 *start = col; | |
| 1476 if (cursor != NULL) | |
| 1477 *cursor = col; | |
| 1478 if (end != NULL) | |
| 1479 *end = col + endadd; | |
| 1480 } | |
| 1481 else | |
| 1482 getvcol(wp, pos, start, cursor, end); | |
| 1483 } | |
| 1484 #endif | |
| 1485 | |
| 1486 /* | |
| 1487 * Get the leftmost and rightmost virtual column of pos1 and pos2. | |
| 1488 * Used for Visual block mode. | |
| 1489 */ | |
| 1490 void | |
|
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1491 getvcols( |
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1492 win_T *wp, |
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1493 pos_T *pos1, |
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1494 pos_T *pos2, |
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1495 colnr_T *left, |
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1496 colnr_T *right) |
| 7 | 1497 { |
| 1498 colnr_T from1, from2, to1, to2; | |
| 1499 | |
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1500 if (LT_POSP(pos1, pos2)) |
| 7 | 1501 { |
| 1502 getvvcol(wp, pos1, &from1, NULL, &to1); | |
| 1503 getvvcol(wp, pos2, &from2, NULL, &to2); | |
| 1504 } | |
| 1505 else | |
| 1506 { | |
| 1507 getvvcol(wp, pos2, &from1, NULL, &to1); | |
| 1508 getvvcol(wp, pos1, &from2, NULL, &to2); | |
| 1509 } | |
| 1510 if (from2 < from1) | |
| 1511 *left = from2; | |
| 1512 else | |
| 1513 *left = from1; | |
| 1514 if (to2 > to1) | |
| 1515 { | |
| 1516 if (*p_sel == 'e' && from2 - 1 >= to1) | |
| 1517 *right = from2 - 1; | |
| 1518 else | |
| 1519 *right = to2; | |
| 1520 } | |
| 1521 else | |
| 1522 *right = to1; | |
| 1523 } | |
| 1524 | |
| 1525 /* | |
| 1526 * skipwhite: skip over ' ' and '\t'. | |
| 1527 */ | |
| 1528 char_u * | |
|
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1529 skipwhite(char_u *q) |
| 7 | 1530 { |
| 1687 | 1531 char_u *p = q; |
| 1532 | |
|
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1533 while (VIM_ISWHITE(*p)) /* skip to next non-white */ |
| 7 | 1534 ++p; |
| 1535 return p; | |
| 1536 } | |
| 1537 | |
| 1538 /* | |
|
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1539 * getwhitecols: return the number of whitespace |
|
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1540 * columns (bytes) at the start of a given line |
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1541 */ |
|
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1542 int |
|
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1543 getwhitecols_curline() |
|
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1544 { |
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1545 return getwhitecols(ml_get_curline()); |
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1546 } |
|
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1547 |
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1548 int |
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|
1549 getwhitecols(char_u *p) |
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1550 { |
|
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1551 return skipwhite(p) - p; |
|
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1552 } |
|
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1553 |
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1554 /* |
| 293 | 1555 * skip over digits |
| 7 | 1556 */ |
| 1557 char_u * | |
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1558 skipdigits(char_u *q) |
| 7 | 1559 { |
| 1687 | 1560 char_u *p = q; |
| 1561 | |
| 7 | 1562 while (VIM_ISDIGIT(*p)) /* skip to next non-digit */ |
| 1563 ++p; | |
| 1564 return p; | |
| 1565 } | |
| 1566 | |
| 741 | 1567 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO) |
| 301 | 1568 /* |
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1569 * skip over binary digits |
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1570 */ |
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1571 char_u * |
|
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1572 skipbin(char_u *q) |
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1573 { |
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1574 char_u *p = q; |
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1575 |
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1576 while (vim_isbdigit(*p)) /* skip to next non-digit */ |
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1577 ++p; |
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1578 return p; |
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1579 } |
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1580 |
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1581 /* |
| 301 | 1582 * skip over digits and hex characters |
| 1583 */ | |
| 1584 char_u * | |
|
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1585 skiphex(char_u *q) |
| 301 | 1586 { |
| 1687 | 1587 char_u *p = q; |
| 1588 | |
| 301 | 1589 while (vim_isxdigit(*p)) /* skip to next non-digit */ |
| 1590 ++p; | |
| 1591 return p; | |
| 1592 } | |
| 1593 #endif | |
| 1594 | |
| 293 | 1595 /* |
|
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1596 * skip to bin digit (or NUL after the string) |
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1597 */ |
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1598 char_u * |
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1599 skiptobin(char_u *q) |
|
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1600 { |
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1601 char_u *p = q; |
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1602 |
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1603 while (*p != NUL && !vim_isbdigit(*p)) /* skip to next digit */ |
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1604 ++p; |
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1605 return p; |
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1606 } |
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1607 |
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1608 /* |
| 293 | 1609 * skip to digit (or NUL after the string) |
| 1610 */ | |
| 1611 char_u * | |
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1612 skiptodigit(char_u *q) |
| 293 | 1613 { |
| 1687 | 1614 char_u *p = q; |
| 1615 | |
| 293 | 1616 while (*p != NUL && !VIM_ISDIGIT(*p)) /* skip to next digit */ |
| 1617 ++p; | |
| 1618 return p; | |
| 1619 } | |
| 1620 | |
| 1621 /* | |
| 1622 * skip to hex character (or NUL after the string) | |
| 1623 */ | |
| 1624 char_u * | |
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1625 skiptohex(char_u *q) |
| 293 | 1626 { |
| 1687 | 1627 char_u *p = q; |
| 1628 | |
| 293 | 1629 while (*p != NUL && !vim_isxdigit(*p)) /* skip to next digit */ |
| 1630 ++p; | |
| 1631 return p; | |
| 1632 } | |
| 1633 | |
| 7 | 1634 /* |
| 1635 * Variant of isdigit() that can handle characters > 0x100. | |
| 1636 * We don't use isdigit() here, because on some systems it also considers | |
| 1637 * superscript 1 to be a digit. | |
| 1638 * Use the VIM_ISDIGIT() macro for simple arguments. | |
| 1639 */ | |
| 1640 int | |
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1641 vim_isdigit(int c) |
| 7 | 1642 { |
| 1643 return (c >= '0' && c <= '9'); | |
| 1644 } | |
| 1645 | |
| 1646 /* | |
| 1647 * Variant of isxdigit() that can handle characters > 0x100. | |
| 1648 * We don't use isxdigit() here, because on some systems it also considers | |
| 1649 * superscript 1 to be a digit. | |
| 1650 */ | |
| 1651 int | |
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1652 vim_isxdigit(int c) |
| 7 | 1653 { |
| 1654 return (c >= '0' && c <= '9') | |
| 1655 || (c >= 'a' && c <= 'f') | |
| 1656 || (c >= 'A' && c <= 'F'); | |
| 1657 } | |
| 1658 | |
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1659 /* |
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1660 * Corollary of vim_isdigit and vim_isxdigit() that can handle |
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1661 * characters > 0x100. |
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1662 */ |
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1663 int |
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1664 vim_isbdigit(int c) |
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1665 { |
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1666 return (c == '0' || c == '1'); |
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1667 } |
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1668 |
| 492 | 1669 #if defined(FEAT_MBYTE) || defined(PROTO) |
| 1670 /* | |
| 1671 * Vim's own character class functions. These exist because many library | |
| 1672 * islower()/toupper() etc. do not work properly: they crash when used with | |
| 1673 * invalid values or can't handle latin1 when the locale is C. | |
| 1674 * Speed is most important here. | |
| 1675 */ | |
| 1676 #define LATIN1LOWER 'l' | |
| 1677 #define LATIN1UPPER 'U' | |
| 1678 | |
| 497 | 1679 static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll"; |
| 3533 | 1680 static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xf7\xd8\xd9\xda\xdb\xdc\xdd\xde\xff"; |
| 1681 static char_u latin1lower[257] = " !\"#$%&'()*+,-./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 | 1682 |
| 1683 int | |
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1684 vim_islower(int c) |
| 492 | 1685 { |
| 1686 if (c <= '@') | |
| 1687 return FALSE; | |
| 1688 if (c >= 0x80) | |
| 1689 { | |
| 1690 if (enc_utf8) | |
| 1691 return utf_islower(c); | |
| 1692 if (c >= 0x100) | |
| 1693 { | |
| 1694 #ifdef HAVE_ISWLOWER | |
| 1695 if (has_mbyte) | |
| 1696 return iswlower(c); | |
| 1697 #endif | |
| 1698 /* islower() can't handle these chars and may crash */ | |
| 1699 return FALSE; | |
| 1700 } | |
| 1701 if (enc_latin1like) | |
| 1702 return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER; | |
| 1703 } | |
| 1704 return islower(c); | |
| 1705 } | |
| 1706 | |
| 1707 int | |
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1708 vim_isupper(int c) |
| 492 | 1709 { |
| 1710 if (c <= '@') | |
| 1711 return FALSE; | |
| 1712 if (c >= 0x80) | |
| 1713 { | |
| 1714 if (enc_utf8) | |
| 1715 return utf_isupper(c); | |
| 1716 if (c >= 0x100) | |
| 1717 { | |
| 1718 #ifdef HAVE_ISWUPPER | |
| 1719 if (has_mbyte) | |
| 1720 return iswupper(c); | |
| 1721 #endif | |
| 1722 /* islower() can't handle these chars and may crash */ | |
| 1723 return FALSE; | |
| 1724 } | |
| 1725 if (enc_latin1like) | |
| 1726 return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER; | |
| 1727 } | |
| 1728 return isupper(c); | |
| 1729 } | |
| 1730 | |
| 1731 int | |
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1732 vim_toupper(int c) |
| 492 | 1733 { |
| 1734 if (c <= '@') | |
| 1735 return c; | |
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1736 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
| 492 | 1737 { |
| 1738 if (enc_utf8) | |
| 1739 return utf_toupper(c); | |
| 1740 if (c >= 0x100) | |
| 1741 { | |
| 1742 #ifdef HAVE_TOWUPPER | |
| 1743 if (has_mbyte) | |
| 1744 return towupper(c); | |
| 1745 #endif | |
| 1746 /* toupper() can't handle these chars and may crash */ | |
| 1747 return c; | |
| 1748 } | |
| 1749 if (enc_latin1like) | |
| 1750 return latin1upper[c]; | |
| 1751 } | |
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1752 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
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1753 return TOUPPER_ASC(c); |
| 492 | 1754 return TOUPPER_LOC(c); |
| 1755 } | |
| 1756 | |
| 1757 int | |
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1758 vim_tolower(int c) |
| 492 | 1759 { |
| 1760 if (c <= '@') | |
| 1761 return c; | |
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1762 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
| 492 | 1763 { |
| 1764 if (enc_utf8) | |
| 1765 return utf_tolower(c); | |
| 1766 if (c >= 0x100) | |
| 1767 { | |
| 1768 #ifdef HAVE_TOWLOWER | |
| 1769 if (has_mbyte) | |
| 1770 return towlower(c); | |
| 1771 #endif | |
| 1772 /* tolower() can't handle these chars and may crash */ | |
| 1773 return c; | |
| 1774 } | |
| 1775 if (enc_latin1like) | |
| 1776 return latin1lower[c]; | |
| 1777 } | |
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1778 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
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1779 return TOLOWER_ASC(c); |
| 492 | 1780 return TOLOWER_LOC(c); |
| 1781 } | |
| 1782 #endif | |
| 1783 | |
| 7 | 1784 /* |
| 1785 * skiptowhite: skip over text until ' ' or '\t' or NUL. | |
| 1786 */ | |
| 1787 char_u * | |
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1788 skiptowhite(char_u *p) |
| 7 | 1789 { |
| 1790 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1791 ++p; | |
| 1792 return p; | |
| 1793 } | |
| 1794 | |
| 1795 /* | |
| 1796 * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars | |
| 1797 */ | |
| 1798 char_u * | |
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1799 skiptowhite_esc(char_u *p) |
| 7 | 1800 { |
| 1801 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1802 { | |
| 1803 if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL) | |
| 1804 ++p; | |
| 1805 ++p; | |
| 1806 } | |
| 1807 return p; | |
| 1808 } | |
| 1809 | |
| 1810 /* | |
| 1811 * Getdigits: Get a number from a string and skip over it. | |
| 1812 * Note: the argument is a pointer to a char_u pointer! | |
| 1813 */ | |
| 1814 long | |
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1815 getdigits(char_u **pp) |
| 7 | 1816 { |
| 1817 char_u *p; | |
| 1818 long retval; | |
| 1819 | |
| 1820 p = *pp; | |
| 1821 retval = atol((char *)p); | |
| 1822 if (*p == '-') /* skip negative sign */ | |
| 1823 ++p; | |
| 1824 p = skipdigits(p); /* skip to next non-digit */ | |
| 1825 *pp = p; | |
| 1826 return retval; | |
| 1827 } | |
| 1828 | |
| 1829 /* | |
| 1830 * Return TRUE if "lbuf" is empty or only contains blanks. | |
| 1831 */ | |
| 1832 int | |
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1833 vim_isblankline(char_u *lbuf) |
| 7 | 1834 { |
| 1835 char_u *p; | |
| 1836 | |
| 1837 p = skipwhite(lbuf); | |
| 1838 return (*p == NUL || *p == '\r' || *p == '\n'); | |
| 1839 } | |
| 1840 | |
| 1841 /* | |
| 1842 * Convert a string into a long and/or unsigned long, taking care of | |
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1843 * hexadecimal, octal, and binary numbers. Accepts a '-' sign. |
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1844 * If "prep" is not NULL, returns a flag to indicate the type of the number: |
| 7 | 1845 * 0 decimal |
| 1846 * '0' octal | |
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1847 * 'B' bin |
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1848 * 'b' bin |
| 7 | 1849 * 'X' hex |
| 1850 * 'x' hex | |
| 1851 * If "len" is not NULL, the length of the number in characters is returned. | |
| 1852 * If "nptr" is not NULL, the signed result is returned in it. | |
| 1853 * If "unptr" is not NULL, the unsigned result is returned in it. | |
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1854 * If "what" contains STR2NR_BIN recognize binary numbers |
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1855 * If "what" contains STR2NR_OCT recognize octal numbers |
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1856 * If "what" contains STR2NR_HEX recognize hex numbers |
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1857 * If "what" contains STR2NR_FORCE always assume bin/oct/hex. |
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1858 * If maxlen > 0, check at a maximum maxlen chars. |
| 7 | 1859 */ |
| 1860 void | |
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1861 vim_str2nr( |
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1862 char_u *start, |
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1863 int *prep, /* return: type of number 0 = decimal, 'x' |
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1864 or 'X' is hex, '0' = octal, 'b' or 'B' |
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1865 is bin */ |
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1866 int *len, /* return: detected length of number */ |
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1867 int what, /* what numbers to recognize */ |
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1868 varnumber_T *nptr, /* return: signed result */ |
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1869 uvarnumber_T *unptr, /* return: unsigned result */ |
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1870 int maxlen) /* max length of string to check */ |
| 7 | 1871 { |
| 1872 char_u *ptr = start; | |
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1873 int pre = 0; /* default is decimal */ |
| 7 | 1874 int negative = FALSE; |
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1875 uvarnumber_T un = 0; |
| 39 | 1876 int n; |
| 7 | 1877 |
| 1878 if (ptr[0] == '-') | |
| 1879 { | |
| 1880 negative = TRUE; | |
| 1881 ++ptr; | |
| 1882 } | |
| 1883 | |
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1884 /* Recognize hex, octal, and bin. */ |
| 6927 | 1885 if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9' |
| 1886 && (maxlen == 0 || maxlen > 1)) | |
| 7 | 1887 { |
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1888 pre = ptr[1]; |
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1889 if ((what & STR2NR_HEX) |
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1890 && (pre == 'X' || pre == 'x') && vim_isxdigit(ptr[2]) |
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1891 && (maxlen == 0 || maxlen > 2)) |
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1892 /* hexadecimal */ |
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1893 ptr += 2; |
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1894 else if ((what & STR2NR_BIN) |
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1895 && (pre == 'B' || pre == 'b') && vim_isbdigit(ptr[2]) |
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1896 && (maxlen == 0 || maxlen > 2)) |
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1897 /* binary */ |
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1898 ptr += 2; |
| 7 | 1899 else |
| 1900 { | |
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1901 /* decimal or octal, default is decimal */ |
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1902 pre = 0; |
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1903 if (what & STR2NR_OCT) |
| 39 | 1904 { |
| 1905 /* Don't interpret "0", "08" or "0129" as octal. */ | |
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1906 for (n = 1; n != maxlen && VIM_ISDIGIT(ptr[n]); ++n) |
| 39 | 1907 { |
| 1908 if (ptr[n] > '7') | |
| 1909 { | |
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1910 pre = 0; /* can't be octal */ |
| 39 | 1911 break; |
| 1912 } | |
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1913 pre = '0'; /* assume octal */ |
| 39 | 1914 } |
| 1915 } | |
| 7 | 1916 } |
| 1917 } | |
| 1918 | |
| 1919 /* | |
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1920 * Do the string-to-numeric conversion "manually" to avoid sscanf quirks. |
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1921 */ |
| 6927 | 1922 n = 1; |
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1923 if (pre == 'B' || pre == 'b' || what == STR2NR_BIN + STR2NR_FORCE) |
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1924 { |
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1925 /* bin */ |
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1926 if (pre != 0) |
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1927 n += 2; /* skip over "0b" */ |
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1928 while ('0' <= *ptr && *ptr <= '1') |
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1929 { |
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1930 /* avoid ubsan error for overflow */ |
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1931 if (un <= UVARNUM_MAX / 2) |
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1932 un = 2 * un + (uvarnumber_T)(*ptr - '0'); |
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1933 else |
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1934 un = UVARNUM_MAX; |
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1935 ++ptr; |
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1936 if (n++ == maxlen) |
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1937 break; |
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1938 } |
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1939 } |
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1940 else if (pre == '0' || what == STR2NR_OCT + STR2NR_FORCE) |
| 7 | 1941 { |
| 293 | 1942 /* octal */ |
| 1943 while ('0' <= *ptr && *ptr <= '7') | |
| 7 | 1944 { |
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1945 /* avoid ubsan error for overflow */ |
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1946 if (un <= UVARNUM_MAX / 8) |
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1947 un = 8 * un + (uvarnumber_T)(*ptr - '0'); |
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1948 else |
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1949 un = UVARNUM_MAX; |
| 293 | 1950 ++ptr; |
| 6927 | 1951 if (n++ == maxlen) |
| 1952 break; | |
| 7 | 1953 } |
| 293 | 1954 } |
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1955 else if (pre != 0 || what == STR2NR_HEX + STR2NR_FORCE) |
| 293 | 1956 { |
| 1957 /* hex */ | |
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1958 if (pre != 0) |
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1959 n += 2; /* skip over "0x" */ |
| 293 | 1960 while (vim_isxdigit(*ptr)) |
| 7 | 1961 { |
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1962 /* avoid ubsan error for overflow */ |
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1963 if (un <= UVARNUM_MAX / 16) |
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1964 un = 16 * un + (uvarnumber_T)hex2nr(*ptr); |
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1965 else |
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1966 un = UVARNUM_MAX; |
| 293 | 1967 ++ptr; |
| 6927 | 1968 if (n++ == maxlen) |
| 1969 break; | |
| 7 | 1970 } |
| 1971 } | |
| 1972 else | |
| 1973 { | |
| 1974 /* decimal */ | |
| 1975 while (VIM_ISDIGIT(*ptr)) | |
| 1976 { | |
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1977 uvarnumber_T digit = (uvarnumber_T)(*ptr - '0'); |
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1978 |
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1979 /* avoid ubsan error for overflow */ |
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1980 if (un < UVARNUM_MAX / 10 |
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1981 || (un == UVARNUM_MAX / 10 && digit <= UVARNUM_MAX % 10)) |
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1982 un = 10 * un + digit; |
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1983 else |
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1984 un = UVARNUM_MAX; |
| 7 | 1985 ++ptr; |
| 6927 | 1986 if (n++ == maxlen) |
| 1987 break; | |
| 7 | 1988 } |
| 1989 } | |
| 1990 | |
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1991 if (prep != NULL) |
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1992 *prep = pre; |
| 7 | 1993 if (len != NULL) |
| 1994 *len = (int)(ptr - start); | |
| 1995 if (nptr != NULL) | |
| 16 | 1996 { |
| 1997 if (negative) /* account for leading '-' for decimal numbers */ | |
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1998 { |
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1999 /* avoid ubsan error for overflow */ |
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2000 if (un > VARNUM_MAX) |
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2001 *nptr = VARNUM_MIN; |
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2002 else |
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2003 *nptr = -(varnumber_T)un; |
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2004 } |
| 16 | 2005 else |
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2006 { |
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2007 if (un > VARNUM_MAX) |
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2008 un = VARNUM_MAX; |
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2009 *nptr = (varnumber_T)un; |
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2010 } |
| 16 | 2011 } |
| 7 | 2012 if (unptr != NULL) |
| 2013 *unptr = un; | |
| 2014 } | |
| 2015 | |
| 2016 /* | |
| 2017 * Return the value of a single hex character. | |
| 2018 * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'. | |
| 2019 */ | |
| 2020 int | |
|
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2021 hex2nr(int c) |
| 7 | 2022 { |
| 2023 if (c >= 'a' && c <= 'f') | |
| 2024 return c - 'a' + 10; | |
| 2025 if (c >= 'A' && c <= 'F') | |
| 2026 return c - 'A' + 10; | |
| 2027 return c - '0'; | |
| 2028 } | |
| 2029 | |
|
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2030 #if defined(FEAT_TERMRESPONSE) || defined(FEAT_GUI_GTK) || defined(PROTO) |
| 7 | 2031 /* |
| 2032 * Convert two hex characters to a byte. | |
| 2033 * Return -1 if one of the characters is not hex. | |
| 2034 */ | |
| 2035 int | |
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2036 hexhex2nr(char_u *p) |
| 7 | 2037 { |
| 2038 if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1])) | |
| 2039 return -1; | |
| 2040 return (hex2nr(p[0]) << 4) + hex2nr(p[1]); | |
| 2041 } | |
| 2042 #endif | |
| 2043 | |
| 2044 /* | |
| 2045 * Return TRUE if "str" starts with a backslash that should be removed. | |
| 2046 * For MS-DOS, WIN32 and OS/2 this is only done when the character after the | |
| 2047 * backslash is not a normal file name character. | |
| 2048 * '$' is a valid file name character, we don't remove the backslash before | |
| 2049 * it. This means it is not possible to use an environment variable after a | |
| 2050 * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works. | |
| 2051 * Although "\ name" is valid, the backslash in "Program\ files" must be | |
| 2052 * removed. Assume a file name doesn't start with a space. | |
| 2053 * For multi-byte names, never remove a backslash before a non-ascii | |
| 2054 * character, assume that all multi-byte characters are valid file name | |
| 2055 * characters. | |
| 2056 */ | |
| 2057 int | |
|
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2058 rem_backslash(char_u *str) |
| 7 | 2059 { |
| 2060 #ifdef BACKSLASH_IN_FILENAME | |
| 2061 return (str[0] == '\\' | |
| 2062 # ifdef FEAT_MBYTE | |
| 2063 && str[1] < 0x80 | |
| 2064 # endif | |
| 2065 && (str[1] == ' ' | |
| 2066 || (str[1] != NUL | |
| 2067 && str[1] != '*' | |
| 2068 && str[1] != '?' | |
| 2069 && !vim_isfilec(str[1])))); | |
| 2070 #else | |
| 2071 return (str[0] == '\\' && str[1] != NUL); | |
| 2072 #endif | |
| 2073 } | |
| 2074 | |
| 2075 /* | |
| 2076 * Halve the number of backslashes in a file name argument. | |
| 2077 * For MS-DOS we only do this if the character after the backslash | |
| 2078 * is not a normal file character. | |
| 2079 */ | |
| 2080 void | |
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2081 backslash_halve(char_u *p) |
| 7 | 2082 { |
| 2083 for ( ; *p; ++p) | |
| 2084 if (rem_backslash(p)) | |
| 1621 | 2085 STRMOVE(p, p + 1); |
| 7 | 2086 } |
| 2087 | |
| 2088 /* | |
| 2089 * backslash_halve() plus save the result in allocated memory. | |
| 2090 */ | |
| 2091 char_u * | |
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2092 backslash_halve_save(char_u *p) |
| 7 | 2093 { |
| 2094 char_u *res; | |
| 2095 | |
| 2096 res = vim_strsave(p); | |
| 2097 if (res == NULL) | |
| 2098 return p; | |
| 2099 backslash_halve(res); | |
| 2100 return res; | |
| 2101 } | |
| 2102 | |
| 2103 #if (defined(EBCDIC) && defined(FEAT_POSTSCRIPT)) || defined(PROTO) | |
| 2104 /* | |
| 2105 * Table for EBCDIC to ASCII conversion unashamedly taken from xxd.c! | |
| 2106 * The first 64 entries have been added to map control characters defined in | |
| 2107 * ascii.h | |
| 2108 */ | |
| 2109 static char_u ebcdic2ascii_tab[256] = | |
| 2110 { | |
| 2111 0000, 0001, 0002, 0003, 0004, 0011, 0006, 0177, | |
| 2112 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017, | |
| 2113 0020, 0021, 0022, 0023, 0024, 0012, 0010, 0027, | |
| 2114 0030, 0031, 0032, 0033, 0033, 0035, 0036, 0037, | |
| 2115 0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047, | |
| 2116 0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057, | |
| 2117 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, | |
| 2118 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077, | |
| 2119 0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246, | |
| 2120 0247, 0250, 0325, 0056, 0074, 0050, 0053, 0174, | |
| 2121 0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257, | |
| 2122 0260, 0261, 0041, 0044, 0052, 0051, 0073, 0176, | |
| 2123 0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267, | |
| 2124 0270, 0271, 0313, 0054, 0045, 0137, 0076, 0077, | |
| 2125 0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301, | |
| 2126 0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042, | |
| 2127 0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147, | |
| 2128 0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311, | |
| 2129 0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160, | |
| 2130 0161, 0162, 0136, 0314, 0315, 0316, 0317, 0320, | |
| 2131 0321, 0345, 0163, 0164, 0165, 0166, 0167, 0170, | |
| 2132 0171, 0172, 0322, 0323, 0324, 0133, 0326, 0327, | |
| 2133 0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337, | |
| 2134 0340, 0341, 0342, 0343, 0344, 0135, 0346, 0347, | |
| 2135 0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107, | |
| 2136 0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355, | |
| 2137 0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120, | |
| 2138 0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363, | |
| 2139 0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130, | |
| 2140 0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371, | |
| 2141 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, | |
| 2142 0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377 | |
| 2143 }; | |
| 2144 | |
| 2145 /* | |
| 2146 * Convert a buffer worth of characters from EBCDIC to ASCII. Only useful if | |
| 2147 * wanting 7-bit ASCII characters out the other end. | |
| 2148 */ | |
| 2149 void | |
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changeset
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2150 ebcdic2ascii(char_u *buffer, int len) |
| 7 | 2151 { |
| 2152 int i; | |
| 2153 | |
| 2154 for (i = 0; i < len; i++) | |
| 2155 buffer[i] = ebcdic2ascii_tab[buffer[i]]; | |
| 2156 } | |
| 2157 #endif |