Mercurial > vim
annotate src/charset.c @ 8657:c70eea7a7677 v7.4.1618
commit https://github.com/vim/vim/commit/a4f6ca717b4483eb82c6c71f71a5a5cf70e55d80
Author: Bram Moolenaar <Bram@vim.org>
Date: Sun Mar 20 17:28:35 2016 +0100
patch 7.4.1618
Problem: Starting job with output to buffer changes options in the current
buffer.
Solution: Set "curbuf" earlier. (Yasuhiro Matsumoto)
| author | Christian Brabandt <cb@256bit.org> |
|---|---|
| date | Sun, 20 Mar 2016 17:30:05 +0100 |
| parents | 24b43dd167eb |
| children | 32e34e574716 |
| rev | line source |
|---|---|
| 7 | 1 /* vi:set ts=8 sts=4 sw=4: |
| 2 * | |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 #include "vim.h" | |
| 11 | |
| 12 #ifdef FEAT_LINEBREAK | |
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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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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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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 | |
| 574 || F_ischar(c) | |
| 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); |
| 873 mb_ptr_adv(s)) | |
| 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 | |
| 890 * 'iskeyword' option for current buffer. | |
| 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 #ifdef FEAT_MBYTE |
| 903 if (c >= 0x100) | |
| 904 { | |
| 905 if (enc_dbcs != 0) | |
| 1869 | 906 return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2; |
| 7 | 907 if (enc_utf8) |
| 908 return utf_class(c) >= 2; | |
| 909 } | |
| 910 #endif | |
| 4043 | 911 return (c > 0 && c < 0x100 && GET_CHARTAB(buf, c) != 0); |
| 7 | 912 } |
| 913 | |
| 914 /* | |
| 915 * Just like vim_iswordc() but uses a pointer to the (multi-byte) character. | |
| 916 */ | |
| 917 int | |
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918 vim_iswordp(char_u *p) |
| 7 | 919 { |
| 920 #ifdef FEAT_MBYTE | |
| 921 if (has_mbyte && MB_BYTE2LEN(*p) > 1) | |
| 922 return mb_get_class(p) >= 2; | |
| 923 #endif | |
| 924 return GET_CHARTAB(curbuf, *p) != 0; | |
| 925 } | |
| 926 | |
| 927 int | |
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928 vim_iswordp_buf(char_u *p, buf_T *buf) |
| 7 | 929 { |
| 4080 | 930 #ifdef FEAT_MBYTE |
| 7 | 931 if (has_mbyte && MB_BYTE2LEN(*p) > 1) |
| 932 return mb_get_class(p) >= 2; | |
| 4080 | 933 #endif |
| 7 | 934 return (GET_CHARTAB(buf, *p) != 0); |
| 935 } | |
| 936 | |
| 937 /* | |
| 938 * return TRUE if 'c' is a valid file-name character | |
| 939 * Assume characters above 0x100 are valid (multi-byte). | |
| 940 */ | |
| 941 int | |
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942 vim_isfilec(int c) |
| 7 | 943 { |
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944 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_FNAME_CHAR))); |
| 7 | 945 } |
| 946 | |
| 947 /* | |
| 1369 | 948 * return TRUE if 'c' is a valid file-name character or a wildcard character |
| 949 * Assume characters above 0x100 are valid (multi-byte). | |
| 950 * Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]") | |
| 951 * returns false. | |
| 952 */ | |
| 953 int | |
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954 vim_isfilec_or_wc(int c) |
| 1369 | 955 { |
| 956 char_u buf[2]; | |
| 957 | |
| 958 buf[0] = (char_u)c; | |
| 959 buf[1] = NUL; | |
| 960 return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf); | |
| 961 } | |
| 962 | |
| 963 /* | |
| 7 | 964 * return TRUE if 'c' is a printable character |
| 965 * Assume characters above 0x100 are printable (multi-byte), except for | |
| 966 * Unicode. | |
| 967 */ | |
| 968 int | |
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969 vim_isprintc(int c) |
| 7 | 970 { |
| 971 #ifdef FEAT_MBYTE | |
| 972 if (enc_utf8 && c >= 0x100) | |
| 973 return utf_printable(c); | |
| 974 #endif | |
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975 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 976 } |
| 977 | |
| 978 /* | |
| 979 * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head | |
| 980 * byte of a double-byte character. | |
| 981 */ | |
| 982 int | |
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983 vim_isprintc_strict(int c) |
| 7 | 984 { |
| 985 #ifdef FEAT_MBYTE | |
| 986 if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1) | |
| 987 return FALSE; | |
| 988 if (enc_utf8 && c >= 0x100) | |
| 989 return utf_printable(c); | |
| 990 #endif | |
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991 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 992 } |
| 993 | |
| 994 /* | |
| 995 * like chartabsize(), but also check for line breaks on the screen | |
| 996 */ | |
| 997 int | |
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998 lbr_chartabsize( |
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999 char_u *line UNUSED, /* start of the line */ |
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1000 unsigned char *s, |
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1001 colnr_T col) |
| 7 | 1002 { |
| 1003 #ifdef FEAT_LINEBREAK | |
| 5995 | 1004 if (!curwin->w_p_lbr && *p_sbr == NUL && !curwin->w_p_bri) |
| 7 | 1005 { |
| 1006 #endif | |
| 1007 #ifdef FEAT_MBYTE | |
| 1008 if (curwin->w_p_wrap) | |
| 1009 return win_nolbr_chartabsize(curwin, s, col, NULL); | |
| 1010 #endif | |
| 1011 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col) | |
| 1012 #ifdef FEAT_LINEBREAK | |
| 1013 } | |
| 5995 | 1014 return win_lbr_chartabsize(curwin, line == NULL ? s : line, s, col, NULL); |
| 7 | 1015 #endif |
| 1016 } | |
| 1017 | |
| 1018 /* | |
| 1019 * Call lbr_chartabsize() and advance the pointer. | |
| 1020 */ | |
| 1021 int | |
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1022 lbr_chartabsize_adv( |
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1023 char_u *line, /* start of the line */ |
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1024 char_u **s, |
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1025 colnr_T col) |
| 7 | 1026 { |
| 1027 int retval; | |
| 1028 | |
| 5995 | 1029 retval = lbr_chartabsize(line, *s, col); |
| 39 | 1030 mb_ptr_adv(*s); |
| 7 | 1031 return retval; |
| 1032 } | |
| 1033 | |
| 1034 /* | |
| 1035 * This function is used very often, keep it fast!!!! | |
| 1036 * | |
| 1037 * If "headp" not NULL, set *headp to the size of what we for 'showbreak' | |
| 1038 * string at start of line. Warning: *headp is only set if it's a non-zero | |
| 1039 * value, init to 0 before calling. | |
| 1040 */ | |
| 1041 int | |
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1042 win_lbr_chartabsize( |
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1043 win_T *wp, |
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1044 char_u *line UNUSED, /* start of the line */ |
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1045 char_u *s, |
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1046 colnr_T col, |
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1047 int *headp UNUSED) |
| 7 | 1048 { |
| 1049 #ifdef FEAT_LINEBREAK | |
| 1050 int c; | |
| 1051 int size; | |
| 1052 colnr_T col2; | |
| 6024 | 1053 colnr_T col_adj = 0; /* col + screen size of tab */ |
| 7 | 1054 colnr_T colmax; |
| 1055 int added; | |
| 1056 # ifdef FEAT_MBYTE | |
| 1057 int mb_added = 0; | |
| 1058 # else | |
| 1059 # define mb_added 0 | |
| 1060 # endif | |
| 1061 int numberextra; | |
| 1062 char_u *ps; | |
| 1063 int tab_corr = (*s == TAB); | |
| 236 | 1064 int n; |
| 7 | 1065 |
| 1066 /* | |
| 5995 | 1067 * No 'linebreak', 'showbreak' and 'breakindent': return quickly. |
| 7 | 1068 */ |
| 5995 | 1069 if (!wp->w_p_lbr && !wp->w_p_bri && *p_sbr == NUL) |
| 7 | 1070 #endif |
| 1071 { | |
| 1072 #ifdef FEAT_MBYTE | |
| 1073 if (wp->w_p_wrap) | |
| 1074 return win_nolbr_chartabsize(wp, s, col, headp); | |
| 1075 #endif | |
| 1076 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col) | |
| 1077 } | |
| 1078 | |
| 1079 #ifdef FEAT_LINEBREAK | |
| 1080 /* | |
| 1081 * First get normal size, without 'linebreak' | |
| 1082 */ | |
| 1083 size = win_chartabsize(wp, s, col); | |
| 1084 c = *s; | |
| 6024 | 1085 if (tab_corr) |
| 1086 col_adj = size - 1; | |
| 7 | 1087 |
| 1088 /* | |
| 1089 * If 'linebreak' set check at a blank before a non-blank if the line | |
| 1090 * needs a break here | |
| 1091 */ | |
| 1092 if (wp->w_p_lbr | |
| 1093 && vim_isbreak(c) | |
| 1094 && !vim_isbreak(s[1]) | |
| 1095 && wp->w_p_wrap | |
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1096 # ifdef FEAT_WINDOWS |
| 7 | 1097 && wp->w_width != 0 |
| 1098 # endif | |
| 1099 ) | |
| 1100 { | |
| 1101 /* | |
| 1102 * Count all characters from first non-blank after a blank up to next | |
| 1103 * non-blank after a blank. | |
| 1104 */ | |
| 1105 numberextra = win_col_off(wp); | |
| 1106 col2 = col; | |
| 6024 | 1107 colmax = (colnr_T)(W_WIDTH(wp) - numberextra - col_adj); |
| 7 | 1108 if (col >= colmax) |
| 236 | 1109 { |
| 6024 | 1110 colmax += col_adj; |
| 1111 n = colmax + win_col_off2(wp); | |
| 236 | 1112 if (n > 0) |
| 6024 | 1113 colmax += (((col - colmax) / n) + 1) * n - col_adj; |
| 236 | 1114 } |
| 1115 | |
| 7 | 1116 for (;;) |
| 1117 { | |
| 1118 ps = s; | |
| 39 | 1119 mb_ptr_adv(s); |
| 7 | 1120 c = *s; |
| 1121 if (!(c != NUL | |
| 1122 && (vim_isbreak(c) | |
| 1123 || (!vim_isbreak(c) | |
| 1124 && (col2 == col || !vim_isbreak(*ps)))))) | |
| 1125 break; | |
| 1126 | |
| 1127 col2 += win_chartabsize(wp, s, col2); | |
| 1128 if (col2 >= colmax) /* doesn't fit */ | |
| 1129 { | |
| 6024 | 1130 size = colmax - col + col_adj; |
| 7 | 1131 tab_corr = FALSE; |
| 1132 break; | |
| 1133 } | |
| 1134 } | |
| 1135 } | |
| 1136 # ifdef FEAT_MBYTE | |
| 1137 else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1 | |
| 1138 && wp->w_p_wrap && in_win_border(wp, col)) | |
| 1139 { | |
| 1140 ++size; /* Count the ">" in the last column. */ | |
| 1141 mb_added = 1; | |
| 1142 } | |
| 1143 # endif | |
| 1144 | |
| 1145 /* | |
| 5995 | 1146 * May have to add something for 'breakindent' and/or 'showbreak' |
| 1147 * string at start of line. | |
| 7 | 1148 * Set *headp to the size of what we add. |
| 1149 */ | |
| 1150 added = 0; | |
| 5995 | 1151 if ((*p_sbr != NUL || wp->w_p_bri) && wp->w_p_wrap && col != 0) |
| 7 | 1152 { |
| 6503 | 1153 colnr_T sbrlen = 0; |
| 1154 int numberwidth = win_col_off(wp); | |
| 1155 | |
| 1156 numberextra = numberwidth; | |
| 7 | 1157 col += numberextra + mb_added; |
| 1158 if (col >= (colnr_T)W_WIDTH(wp)) | |
| 1159 { | |
| 1160 col -= W_WIDTH(wp); | |
| 1161 numberextra = W_WIDTH(wp) - (numberextra - win_col_off2(wp)); | |
| 6503 | 1162 if (col >= numberextra && numberextra > 0) |
| 6312 | 1163 col %= numberextra; |
| 6288 | 1164 if (*p_sbr != NUL) |
| 1165 { | |
| 6503 | 1166 sbrlen = (colnr_T)MB_CHARLEN(p_sbr); |
| 6288 | 1167 if (col >= sbrlen) |
| 1168 col -= sbrlen; | |
| 1169 } | |
| 6503 | 1170 if (col >= numberextra && numberextra > 0) |
| 7 | 1171 col = col % numberextra; |
| 6503 | 1172 else if (col > 0 && numberextra > 0) |
| 1173 col += numberwidth - win_col_off2(wp); | |
| 1174 | |
| 1175 numberwidth -= win_col_off2(wp); | |
| 7 | 1176 } |
| 6503 | 1177 if (col == 0 || col + size + sbrlen > (colnr_T)W_WIDTH(wp)) |
| 7 | 1178 { |
| 5995 | 1179 added = 0; |
| 1180 if (*p_sbr != NUL) | |
| 6503 | 1181 { |
| 1182 if (size + sbrlen + numberwidth > (colnr_T)W_WIDTH(wp)) | |
| 1183 { | |
| 1184 /* calculate effective window width */ | |
| 1185 int width = (colnr_T)W_WIDTH(wp) - sbrlen - numberwidth; | |
| 1186 int prev_width = col ? ((colnr_T)W_WIDTH(wp) - (sbrlen + col)) : 0; | |
| 1187 if (width == 0) | |
| 1188 width = (colnr_T)W_WIDTH(wp); | |
| 1189 added += ((size - prev_width) / width) * vim_strsize(p_sbr); | |
| 1190 if ((size - prev_width) % width) | |
| 1191 /* wrapped, add another length of 'sbr' */ | |
| 1192 added += vim_strsize(p_sbr); | |
| 1193 } | |
| 1194 else | |
| 1195 added += vim_strsize(p_sbr); | |
| 1196 } | |
| 5995 | 1197 if (wp->w_p_bri) |
| 1198 added += get_breakindent_win(wp, line); | |
| 1199 | |
| 6160 | 1200 size += added; |
| 7 | 1201 if (col != 0) |
| 1202 added = 0; | |
| 1203 } | |
| 1204 } | |
| 1205 if (headp != NULL) | |
| 1206 *headp = added + mb_added; | |
| 1207 return size; | |
| 1208 #endif | |
| 1209 } | |
| 1210 | |
| 1211 #if defined(FEAT_MBYTE) || defined(PROTO) | |
| 1212 /* | |
| 1213 * Like win_lbr_chartabsize(), except that we know 'linebreak' is off and | |
| 1214 * 'wrap' is on. This means we need to check for a double-byte character that | |
| 1215 * doesn't fit at the end of the screen line. | |
| 1216 */ | |
| 1217 static int | |
|
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1218 win_nolbr_chartabsize( |
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1219 win_T *wp, |
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1220 char_u *s, |
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1221 colnr_T col, |
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1222 int *headp) |
| 7 | 1223 { |
| 1224 int n; | |
| 1225 | |
| 1226 if (*s == TAB && (!wp->w_p_list || lcs_tab1)) | |
| 1227 { | |
| 1228 n = wp->w_buffer->b_p_ts; | |
| 1229 return (int)(n - (col % n)); | |
| 1230 } | |
| 1231 n = ptr2cells(s); | |
| 1232 /* Add one cell for a double-width character in the last column of the | |
| 1233 * window, displayed with a ">". */ | |
| 1234 if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col)) | |
| 1235 { | |
| 1236 if (headp != NULL) | |
| 1237 *headp = 1; | |
| 1238 return 3; | |
| 1239 } | |
| 1240 return n; | |
| 1241 } | |
| 1242 | |
| 1243 /* | |
| 1244 * Return TRUE if virtual column "vcol" is in the rightmost column of window | |
| 1245 * "wp". | |
| 1246 */ | |
| 1247 int | |
|
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1248 in_win_border(win_T *wp, colnr_T vcol) |
| 7 | 1249 { |
| 1869 | 1250 int width1; /* width of first line (after line number) */ |
| 1251 int width2; /* width of further lines */ | |
| 7 | 1252 |
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1253 # ifdef FEAT_WINDOWS |
| 7 | 1254 if (wp->w_width == 0) /* there is no border */ |
| 1255 return FALSE; | |
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1256 # endif |
| 7 | 1257 width1 = W_WIDTH(wp) - win_col_off(wp); |
| 1869 | 1258 if ((int)vcol < width1 - 1) |
| 7 | 1259 return FALSE; |
| 1869 | 1260 if ((int)vcol == width1 - 1) |
| 7 | 1261 return TRUE; |
| 1262 width2 = width1 + win_col_off2(wp); | |
| 1970 | 1263 if (width2 <= 0) |
| 1264 return FALSE; | |
| 7 | 1265 return ((vcol - width1) % width2 == width2 - 1); |
| 1266 } | |
| 1267 #endif /* FEAT_MBYTE */ | |
| 1268 | |
| 1269 /* | |
| 1270 * Get virtual column number of pos. | |
| 1271 * start: on the first position of this character (TAB, ctrl) | |
| 1272 * cursor: where the cursor is on this character (first char, except for TAB) | |
| 1273 * end: on the last position of this character (TAB, ctrl) | |
| 1274 * | |
| 1275 * This is used very often, keep it fast! | |
| 1276 */ | |
| 1277 void | |
|
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1278 getvcol( |
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1279 win_T *wp, |
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1280 pos_T *pos, |
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1281 colnr_T *start, |
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1282 colnr_T *cursor, |
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1283 colnr_T *end) |
| 7 | 1284 { |
| 1285 colnr_T vcol; | |
| 1286 char_u *ptr; /* points to current char */ | |
| 1287 char_u *posptr; /* points to char at pos->col */ | |
| 5995 | 1288 char_u *line; /* start of the line */ |
| 7 | 1289 int incr; |
| 1290 int head; | |
| 1291 int ts = wp->w_buffer->b_p_ts; | |
| 1292 int c; | |
| 1293 | |
| 1294 vcol = 0; | |
| 5995 | 1295 line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
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1296 if (pos->col == MAXCOL) |
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1297 posptr = NULL; /* continue until the NUL */ |
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1298 else |
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1299 posptr = ptr + pos->col; |
| 7 | 1300 |
| 1301 /* | |
| 1302 * This function is used very often, do some speed optimizations. | |
| 5995 | 1303 * When 'list', 'linebreak', 'showbreak' and 'breakindent' are not set |
| 1304 * use a simple loop. | |
| 7 | 1305 * Also use this when 'list' is set but tabs take their normal size. |
| 1306 */ | |
| 1307 if ((!wp->w_p_list || lcs_tab1 != NUL) | |
| 1308 #ifdef FEAT_LINEBREAK | |
| 5995 | 1309 && !wp->w_p_lbr && *p_sbr == NUL && !wp->w_p_bri |
| 7 | 1310 #endif |
| 1311 ) | |
| 1312 { | |
| 1313 #ifndef FEAT_MBYTE | |
| 1314 head = 0; | |
| 1315 #endif | |
| 1316 for (;;) | |
| 1317 { | |
| 1318 #ifdef FEAT_MBYTE | |
| 1319 head = 0; | |
| 1320 #endif | |
| 1321 c = *ptr; | |
| 1322 /* make sure we don't go past the end of the line */ | |
| 1323 if (c == NUL) | |
| 1324 { | |
| 1325 incr = 1; /* NUL at end of line only takes one column */ | |
| 1326 break; | |
| 1327 } | |
| 1328 /* A tab gets expanded, depending on the current column */ | |
| 1329 if (c == TAB) | |
| 1330 incr = ts - (vcol % ts); | |
| 1331 else | |
| 1332 { | |
| 1333 #ifdef FEAT_MBYTE | |
| 1334 if (has_mbyte) | |
| 1335 { | |
| 1336 /* For utf-8, if the byte is >= 0x80, need to look at | |
| 1337 * further bytes to find the cell width. */ | |
| 1338 if (enc_utf8 && c >= 0x80) | |
| 1339 incr = utf_ptr2cells(ptr); | |
| 1340 else | |
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1341 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1342 |
| 1343 /* If a double-cell char doesn't fit at the end of a line | |
| 1344 * it wraps to the next line, it's like this char is three | |
| 1345 * cells wide. */ | |
| 1546 | 1346 if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1 |
| 1347 && in_win_border(wp, vcol)) | |
| 7 | 1348 { |
| 1349 ++incr; | |
| 1350 head = 1; | |
| 1351 } | |
| 1352 } | |
| 1353 else | |
| 1354 #endif | |
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1355 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1356 } |
| 1357 | |
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1358 if (posptr != NULL && ptr >= posptr) /* character at pos->col */ |
| 7 | 1359 break; |
| 1360 | |
| 1361 vcol += incr; | |
| 39 | 1362 mb_ptr_adv(ptr); |
| 7 | 1363 } |
| 1364 } | |
| 1365 else | |
| 1366 { | |
| 1367 for (;;) | |
| 1368 { | |
| 1369 /* A tab gets expanded, depending on the current column */ | |
| 1370 head = 0; | |
| 5995 | 1371 incr = win_lbr_chartabsize(wp, line, ptr, vcol, &head); |
| 7 | 1372 /* make sure we don't go past the end of the line */ |
| 1373 if (*ptr == NUL) | |
| 1374 { | |
| 1375 incr = 1; /* NUL at end of line only takes one column */ | |
| 1376 break; | |
| 1377 } | |
| 1378 | |
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1379 if (posptr != NULL && ptr >= posptr) /* character at pos->col */ |
| 7 | 1380 break; |
| 1381 | |
| 1382 vcol += incr; | |
| 39 | 1383 mb_ptr_adv(ptr); |
| 7 | 1384 } |
| 1385 } | |
| 1386 if (start != NULL) | |
| 1387 *start = vcol + head; | |
| 1388 if (end != NULL) | |
| 1389 *end = vcol + incr - 1; | |
| 1390 if (cursor != NULL) | |
| 1391 { | |
| 1392 if (*ptr == TAB | |
| 1393 && (State & NORMAL) | |
| 1394 && !wp->w_p_list | |
| 1395 && !virtual_active() | |
| 5735 | 1396 && !(VIsual_active && (*p_sel == 'e' || ltoreq(*pos, VIsual))) |
| 7 | 1397 ) |
| 1398 *cursor = vcol + incr - 1; /* cursor at end */ | |
| 1399 else | |
| 1400 *cursor = vcol + head; /* cursor at start */ | |
| 1401 } | |
| 1402 } | |
| 1403 | |
| 1404 /* | |
| 1405 * Get virtual cursor column in the current window, pretending 'list' is off. | |
| 1406 */ | |
| 1407 colnr_T | |
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1408 getvcol_nolist(pos_T *posp) |
| 7 | 1409 { |
| 1410 int list_save = curwin->w_p_list; | |
| 1411 colnr_T vcol; | |
| 1412 | |
| 1413 curwin->w_p_list = FALSE; | |
| 1414 getvcol(curwin, posp, NULL, &vcol, NULL); | |
| 1415 curwin->w_p_list = list_save; | |
| 1416 return vcol; | |
| 1417 } | |
| 1418 | |
| 1419 #if defined(FEAT_VIRTUALEDIT) || defined(PROTO) | |
| 1420 /* | |
| 1421 * Get virtual column in virtual mode. | |
| 1422 */ | |
| 1423 void | |
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1424 getvvcol( |
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1425 win_T *wp, |
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1426 pos_T *pos, |
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1427 colnr_T *start, |
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1428 colnr_T *cursor, |
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1429 colnr_T *end) |
| 7 | 1430 { |
| 1431 colnr_T col; | |
| 1432 colnr_T coladd; | |
| 1433 colnr_T endadd; | |
| 1434 # ifdef FEAT_MBYTE | |
| 1435 char_u *ptr; | |
| 1436 # endif | |
| 1437 | |
| 1438 if (virtual_active()) | |
| 1439 { | |
| 1440 /* For virtual mode, only want one value */ | |
| 1441 getvcol(wp, pos, &col, NULL, NULL); | |
| 1442 | |
| 1443 coladd = pos->coladd; | |
| 1444 endadd = 0; | |
| 1445 # ifdef FEAT_MBYTE | |
| 1446 /* Cannot put the cursor on part of a wide character. */ | |
| 1447 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); | |
| 1869 | 1448 if (pos->col < (colnr_T)STRLEN(ptr)) |
| 7 | 1449 { |
| 1450 int c = (*mb_ptr2char)(ptr + pos->col); | |
| 1451 | |
| 1452 if (c != TAB && vim_isprintc(c)) | |
| 1453 { | |
| 1869 | 1454 endadd = (colnr_T)(char2cells(c) - 1); |
| 557 | 1455 if (coladd > endadd) /* past end of line */ |
| 1456 endadd = 0; | |
| 7 | 1457 else |
| 1458 coladd = 0; | |
| 1459 } | |
| 1460 } | |
| 1461 # endif | |
| 1462 col += coladd; | |
| 1463 if (start != NULL) | |
| 1464 *start = col; | |
| 1465 if (cursor != NULL) | |
| 1466 *cursor = col; | |
| 1467 if (end != NULL) | |
| 1468 *end = col + endadd; | |
| 1469 } | |
| 1470 else | |
| 1471 getvcol(wp, pos, start, cursor, end); | |
| 1472 } | |
| 1473 #endif | |
| 1474 | |
| 1475 /* | |
| 1476 * Get the leftmost and rightmost virtual column of pos1 and pos2. | |
| 1477 * Used for Visual block mode. | |
| 1478 */ | |
| 1479 void | |
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1480 getvcols( |
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1481 win_T *wp, |
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1482 pos_T *pos1, |
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1483 pos_T *pos2, |
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1484 colnr_T *left, |
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1485 colnr_T *right) |
| 7 | 1486 { |
| 1487 colnr_T from1, from2, to1, to2; | |
| 1488 | |
| 1489 if (ltp(pos1, pos2)) | |
| 1490 { | |
| 1491 getvvcol(wp, pos1, &from1, NULL, &to1); | |
| 1492 getvvcol(wp, pos2, &from2, NULL, &to2); | |
| 1493 } | |
| 1494 else | |
| 1495 { | |
| 1496 getvvcol(wp, pos2, &from1, NULL, &to1); | |
| 1497 getvvcol(wp, pos1, &from2, NULL, &to2); | |
| 1498 } | |
| 1499 if (from2 < from1) | |
| 1500 *left = from2; | |
| 1501 else | |
| 1502 *left = from1; | |
| 1503 if (to2 > to1) | |
| 1504 { | |
| 1505 if (*p_sel == 'e' && from2 - 1 >= to1) | |
| 1506 *right = from2 - 1; | |
| 1507 else | |
| 1508 *right = to2; | |
| 1509 } | |
| 1510 else | |
| 1511 *right = to1; | |
| 1512 } | |
| 1513 | |
| 1514 /* | |
| 1515 * skipwhite: skip over ' ' and '\t'. | |
| 1516 */ | |
| 1517 char_u * | |
|
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1518 skipwhite(char_u *q) |
| 7 | 1519 { |
| 1687 | 1520 char_u *p = q; |
| 1521 | |
| 7 | 1522 while (vim_iswhite(*p)) /* skip to next non-white */ |
| 1523 ++p; | |
| 1524 return p; | |
| 1525 } | |
| 1526 | |
| 1527 /* | |
| 293 | 1528 * skip over digits |
| 7 | 1529 */ |
| 1530 char_u * | |
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1531 skipdigits(char_u *q) |
| 7 | 1532 { |
| 1687 | 1533 char_u *p = q; |
| 1534 | |
| 7 | 1535 while (VIM_ISDIGIT(*p)) /* skip to next non-digit */ |
| 1536 ++p; | |
| 1537 return p; | |
| 1538 } | |
| 1539 | |
| 741 | 1540 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO) |
| 301 | 1541 /* |
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1542 * skip over binary digits |
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1543 */ |
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1544 char_u * |
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1545 skipbin(char_u *q) |
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1546 { |
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1547 char_u *p = q; |
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1548 |
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1549 while (vim_isbdigit(*p)) /* skip to next non-digit */ |
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1550 ++p; |
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1551 return p; |
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1552 } |
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1553 |
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1554 /* |
| 301 | 1555 * skip over digits and hex characters |
| 1556 */ | |
| 1557 char_u * | |
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1558 skiphex(char_u *q) |
| 301 | 1559 { |
| 1687 | 1560 char_u *p = q; |
| 1561 | |
| 301 | 1562 while (vim_isxdigit(*p)) /* skip to next non-digit */ |
| 1563 ++p; | |
| 1564 return p; | |
| 1565 } | |
| 1566 #endif | |
| 1567 | |
| 293 | 1568 /* |
|
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1569 * skip to bin digit (or NUL after the string) |
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1570 */ |
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1571 char_u * |
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1572 skiptobin(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 (*p != NUL && !vim_isbdigit(*p)) /* skip to next 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 /* |
| 293 | 1582 * skip to digit (or NUL after the string) |
| 1583 */ | |
| 1584 char_u * | |
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1585 skiptodigit(char_u *q) |
| 293 | 1586 { |
| 1687 | 1587 char_u *p = q; |
| 1588 | |
| 293 | 1589 while (*p != NUL && !VIM_ISDIGIT(*p)) /* skip to next digit */ |
| 1590 ++p; | |
| 1591 return p; | |
| 1592 } | |
| 1593 | |
| 1594 /* | |
| 1595 * skip to hex character (or NUL after the string) | |
| 1596 */ | |
| 1597 char_u * | |
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1598 skiptohex(char_u *q) |
| 293 | 1599 { |
| 1687 | 1600 char_u *p = q; |
| 1601 | |
| 293 | 1602 while (*p != NUL && !vim_isxdigit(*p)) /* skip to next digit */ |
| 1603 ++p; | |
| 1604 return p; | |
| 1605 } | |
| 1606 | |
| 7 | 1607 /* |
| 1608 * Variant of isdigit() that can handle characters > 0x100. | |
| 1609 * We don't use isdigit() here, because on some systems it also considers | |
| 1610 * superscript 1 to be a digit. | |
| 1611 * Use the VIM_ISDIGIT() macro for simple arguments. | |
| 1612 */ | |
| 1613 int | |
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1614 vim_isdigit(int c) |
| 7 | 1615 { |
| 1616 return (c >= '0' && c <= '9'); | |
| 1617 } | |
| 1618 | |
| 1619 /* | |
| 1620 * Variant of isxdigit() that can handle characters > 0x100. | |
| 1621 * We don't use isxdigit() here, because on some systems it also considers | |
| 1622 * superscript 1 to be a digit. | |
| 1623 */ | |
| 1624 int | |
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1625 vim_isxdigit(int c) |
| 7 | 1626 { |
| 1627 return (c >= '0' && c <= '9') | |
| 1628 || (c >= 'a' && c <= 'f') | |
| 1629 || (c >= 'A' && c <= 'F'); | |
| 1630 } | |
| 1631 | |
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1632 /* |
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1633 * Corollary of vim_isdigit and vim_isxdigit() that can handle |
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1634 * characters > 0x100. |
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1635 */ |
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1636 int |
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1637 vim_isbdigit(int c) |
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1638 { |
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1639 return (c == '0' || c == '1'); |
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1640 } |
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1641 |
| 492 | 1642 #if defined(FEAT_MBYTE) || defined(PROTO) |
| 1643 /* | |
| 1644 * Vim's own character class functions. These exist because many library | |
| 1645 * islower()/toupper() etc. do not work properly: they crash when used with | |
| 1646 * invalid values or can't handle latin1 when the locale is C. | |
| 1647 * Speed is most important here. | |
| 1648 */ | |
| 1649 #define LATIN1LOWER 'l' | |
| 1650 #define LATIN1UPPER 'U' | |
| 1651 | |
| 497 | 1652 static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll"; |
| 3533 | 1653 static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xf7\xd8\xd9\xda\xdb\xdc\xdd\xde\xff"; |
| 1654 static char_u latin1lower[257] = " !\"#$%&'()*+,-./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 | 1655 |
| 1656 int | |
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1657 vim_islower(int c) |
| 492 | 1658 { |
| 1659 if (c <= '@') | |
| 1660 return FALSE; | |
| 1661 if (c >= 0x80) | |
| 1662 { | |
| 1663 if (enc_utf8) | |
| 1664 return utf_islower(c); | |
| 1665 if (c >= 0x100) | |
| 1666 { | |
| 1667 #ifdef HAVE_ISWLOWER | |
| 1668 if (has_mbyte) | |
| 1669 return iswlower(c); | |
| 1670 #endif | |
| 1671 /* islower() can't handle these chars and may crash */ | |
| 1672 return FALSE; | |
| 1673 } | |
| 1674 if (enc_latin1like) | |
| 1675 return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER; | |
| 1676 } | |
| 1677 return islower(c); | |
| 1678 } | |
| 1679 | |
| 1680 int | |
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1681 vim_isupper(int c) |
| 492 | 1682 { |
| 1683 if (c <= '@') | |
| 1684 return FALSE; | |
| 1685 if (c >= 0x80) | |
| 1686 { | |
| 1687 if (enc_utf8) | |
| 1688 return utf_isupper(c); | |
| 1689 if (c >= 0x100) | |
| 1690 { | |
| 1691 #ifdef HAVE_ISWUPPER | |
| 1692 if (has_mbyte) | |
| 1693 return iswupper(c); | |
| 1694 #endif | |
| 1695 /* islower() can't handle these chars and may crash */ | |
| 1696 return FALSE; | |
| 1697 } | |
| 1698 if (enc_latin1like) | |
| 1699 return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER; | |
| 1700 } | |
| 1701 return isupper(c); | |
| 1702 } | |
| 1703 | |
| 1704 int | |
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1705 vim_toupper(int c) |
| 492 | 1706 { |
| 1707 if (c <= '@') | |
| 1708 return c; | |
| 1709 if (c >= 0x80) | |
| 1710 { | |
| 1711 if (enc_utf8) | |
| 1712 return utf_toupper(c); | |
| 1713 if (c >= 0x100) | |
| 1714 { | |
| 1715 #ifdef HAVE_TOWUPPER | |
| 1716 if (has_mbyte) | |
| 1717 return towupper(c); | |
| 1718 #endif | |
| 1719 /* toupper() can't handle these chars and may crash */ | |
| 1720 return c; | |
| 1721 } | |
| 1722 if (enc_latin1like) | |
| 1723 return latin1upper[c]; | |
| 1724 } | |
| 1725 return TOUPPER_LOC(c); | |
| 1726 } | |
| 1727 | |
| 1728 int | |
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1729 vim_tolower(int c) |
| 492 | 1730 { |
| 1731 if (c <= '@') | |
| 1732 return c; | |
| 1733 if (c >= 0x80) | |
| 1734 { | |
| 1735 if (enc_utf8) | |
| 1736 return utf_tolower(c); | |
| 1737 if (c >= 0x100) | |
| 1738 { | |
| 1739 #ifdef HAVE_TOWLOWER | |
| 1740 if (has_mbyte) | |
| 1741 return towlower(c); | |
| 1742 #endif | |
| 1743 /* tolower() can't handle these chars and may crash */ | |
| 1744 return c; | |
| 1745 } | |
| 1746 if (enc_latin1like) | |
| 1747 return latin1lower[c]; | |
| 1748 } | |
| 1749 return TOLOWER_LOC(c); | |
| 1750 } | |
| 1751 #endif | |
| 1752 | |
| 7 | 1753 /* |
| 1754 * skiptowhite: skip over text until ' ' or '\t' or NUL. | |
| 1755 */ | |
| 1756 char_u * | |
|
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1757 skiptowhite(char_u *p) |
| 7 | 1758 { |
| 1759 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1760 ++p; | |
| 1761 return p; | |
| 1762 } | |
| 1763 | |
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1764 #if defined(FEAT_LISTCMDS) || defined(FEAT_SIGNS) || defined(PROTO) |
| 7 | 1765 /* |
| 1766 * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars | |
| 1767 */ | |
| 1768 char_u * | |
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1769 skiptowhite_esc(char_u *p) |
| 7 | 1770 { |
| 1771 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1772 { | |
| 1773 if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL) | |
| 1774 ++p; | |
| 1775 ++p; | |
| 1776 } | |
| 1777 return p; | |
| 1778 } | |
| 1779 #endif | |
| 1780 | |
| 1781 /* | |
| 1782 * Getdigits: Get a number from a string and skip over it. | |
| 1783 * Note: the argument is a pointer to a char_u pointer! | |
| 1784 */ | |
| 1785 long | |
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1786 getdigits(char_u **pp) |
| 7 | 1787 { |
| 1788 char_u *p; | |
| 1789 long retval; | |
| 1790 | |
| 1791 p = *pp; | |
| 1792 retval = atol((char *)p); | |
| 1793 if (*p == '-') /* skip negative sign */ | |
| 1794 ++p; | |
| 1795 p = skipdigits(p); /* skip to next non-digit */ | |
| 1796 *pp = p; | |
| 1797 return retval; | |
| 1798 } | |
| 1799 | |
| 1800 /* | |
| 1801 * Return TRUE if "lbuf" is empty or only contains blanks. | |
| 1802 */ | |
| 1803 int | |
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1804 vim_isblankline(char_u *lbuf) |
| 7 | 1805 { |
| 1806 char_u *p; | |
| 1807 | |
| 1808 p = skipwhite(lbuf); | |
| 1809 return (*p == NUL || *p == '\r' || *p == '\n'); | |
| 1810 } | |
| 1811 | |
| 1812 /* | |
| 1813 * Convert a string into a long and/or unsigned long, taking care of | |
|
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1814 * hexadecimal, octal, and binary numbers. Accepts a '-' sign. |
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1815 * If "prep" is not NULL, returns a flag to indicate the type of the number: |
| 7 | 1816 * 0 decimal |
| 1817 * '0' octal | |
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1818 * 'B' bin |
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1819 * 'b' bin |
| 7 | 1820 * 'X' hex |
| 1821 * 'x' hex | |
| 1822 * If "len" is not NULL, the length of the number in characters is returned. | |
| 1823 * If "nptr" is not NULL, the signed result is returned in it. | |
| 1824 * If "unptr" is not NULL, the unsigned result is returned in it. | |
|
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1825 * If "what" contains STR2NR_BIN recognize binary numbers |
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1826 * If "what" contains STR2NR_OCT recognize octal numbers |
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1827 * If "what" contains STR2NR_HEX recognize hex numbers |
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1828 * If "what" contains STR2NR_FORCE always assume bin/oct/hex. |
| 6927 | 1829 * If maxlen > 0, check at a maximum maxlen chars |
| 7 | 1830 */ |
| 1831 void | |
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1832 vim_str2nr( |
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1833 char_u *start, |
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1834 int *prep, /* return: type of number 0 = decimal, 'x' |
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1835 or 'X' is hex, '0' = octal, 'b' or 'B' |
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1836 is bin */ |
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1837 int *len, /* return: detected length of number */ |
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1838 int what, /* what numbers to recognize */ |
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1839 long *nptr, /* return: signed result */ |
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1840 unsigned long *unptr, /* return: unsigned result */ |
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1841 int maxlen) /* max length of string to check */ |
| 7 | 1842 { |
| 1843 char_u *ptr = start; | |
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1844 int pre = 0; /* default is decimal */ |
| 7 | 1845 int negative = FALSE; |
| 1846 unsigned long un = 0; | |
| 39 | 1847 int n; |
| 7 | 1848 |
| 1849 if (ptr[0] == '-') | |
| 1850 { | |
| 1851 negative = TRUE; | |
| 1852 ++ptr; | |
| 1853 } | |
| 1854 | |
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1855 /* Recognize hex, octal, and bin. */ |
| 6927 | 1856 if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9' |
| 1857 && (maxlen == 0 || maxlen > 1)) | |
| 7 | 1858 { |
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1859 pre = ptr[1]; |
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1860 if ((what & STR2NR_HEX) |
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1861 && (pre == 'X' || pre == 'x') && vim_isxdigit(ptr[2]) |
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1862 && (maxlen == 0 || maxlen > 2)) |
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1863 /* hexadecimal */ |
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1864 ptr += 2; |
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1865 else if ((what & STR2NR_BIN) |
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1866 && (pre == 'B' || pre == 'b') && vim_isbdigit(ptr[2]) |
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1867 && (maxlen == 0 || maxlen > 2)) |
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1868 /* binary */ |
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1869 ptr += 2; |
| 7 | 1870 else |
| 1871 { | |
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1872 /* decimal or octal, default is decimal */ |
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1873 pre = 0; |
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1874 if (what & STR2NR_OCT) |
| 39 | 1875 { |
| 1876 /* Don't interpret "0", "08" or "0129" as octal. */ | |
| 1877 for (n = 1; VIM_ISDIGIT(ptr[n]); ++n) | |
| 1878 { | |
| 1879 if (ptr[n] > '7') | |
| 1880 { | |
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1881 pre = 0; /* can't be octal */ |
| 39 | 1882 break; |
| 1883 } | |
| 3292 | 1884 if (ptr[n] >= '0') |
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1885 pre = '0'; /* assume octal */ |
| 6927 | 1886 if (n == maxlen) |
| 1887 break; | |
| 39 | 1888 } |
| 1889 } | |
| 7 | 1890 } |
| 1891 } | |
| 1892 | |
| 1893 /* | |
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1894 * Do the string-to-numeric conversion "manually" to avoid sscanf quirks. |
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1895 */ |
| 6927 | 1896 n = 1; |
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1897 if (pre == 'B' || pre == 'b' || what == STR2NR_BIN + STR2NR_FORCE) |
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1898 { |
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1899 /* bin */ |
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1900 if (pre != 0) |
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1901 n += 2; /* skip over "0b" */ |
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1902 while ('0' <= *ptr && *ptr <= '1') |
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1903 { |
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1904 un = 2 * un + (unsigned long)(*ptr - '0'); |
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1905 ++ptr; |
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1906 if (n++ == maxlen) |
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1907 break; |
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1908 } |
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1909 } |
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1910 else if (pre == '0' || what == STR2NR_OCT + STR2NR_FORCE) |
| 7 | 1911 { |
| 293 | 1912 /* octal */ |
| 1913 while ('0' <= *ptr && *ptr <= '7') | |
| 7 | 1914 { |
| 293 | 1915 un = 8 * un + (unsigned long)(*ptr - '0'); |
| 1916 ++ptr; | |
| 6927 | 1917 if (n++ == maxlen) |
| 1918 break; | |
| 7 | 1919 } |
| 293 | 1920 } |
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1921 else if (pre != 0 || what == STR2NR_HEX + STR2NR_FORCE) |
| 293 | 1922 { |
| 1923 /* hex */ | |
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1924 if (pre != 0) |
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1925 n += 2; /* skip over "0x" */ |
| 293 | 1926 while (vim_isxdigit(*ptr)) |
| 7 | 1927 { |
| 293 | 1928 un = 16 * un + (unsigned long)hex2nr(*ptr); |
| 1929 ++ptr; | |
| 6927 | 1930 if (n++ == maxlen) |
| 1931 break; | |
| 7 | 1932 } |
| 1933 } | |
| 1934 else | |
| 1935 { | |
| 1936 /* decimal */ | |
| 1937 while (VIM_ISDIGIT(*ptr)) | |
| 1938 { | |
| 1939 un = 10 * un + (unsigned long)(*ptr - '0'); | |
| 1940 ++ptr; | |
| 6927 | 1941 if (n++ == maxlen) |
| 1942 break; | |
| 7 | 1943 } |
| 1944 } | |
| 1945 | |
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1946 if (prep != NULL) |
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1947 *prep = pre; |
| 7 | 1948 if (len != NULL) |
| 1949 *len = (int)(ptr - start); | |
| 1950 if (nptr != NULL) | |
| 16 | 1951 { |
| 1952 if (negative) /* account for leading '-' for decimal numbers */ | |
| 1953 *nptr = -(long)un; | |
| 1954 else | |
| 1955 *nptr = (long)un; | |
| 1956 } | |
| 7 | 1957 if (unptr != NULL) |
| 1958 *unptr = un; | |
| 1959 } | |
| 1960 | |
| 1961 /* | |
| 1962 * Return the value of a single hex character. | |
| 1963 * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'. | |
| 1964 */ | |
| 1965 int | |
|
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1966 hex2nr(int c) |
| 7 | 1967 { |
| 1968 if (c >= 'a' && c <= 'f') | |
| 1969 return c - 'a' + 10; | |
| 1970 if (c >= 'A' && c <= 'F') | |
| 1971 return c - 'A' + 10; | |
| 1972 return c - '0'; | |
| 1973 } | |
| 1974 | |
| 1975 #if defined(FEAT_TERMRESPONSE) \ | |
| 1976 || (defined(FEAT_GUI_GTK) && defined(FEAT_WINDOWS)) || defined(PROTO) | |
| 1977 /* | |
| 1978 * Convert two hex characters to a byte. | |
| 1979 * Return -1 if one of the characters is not hex. | |
| 1980 */ | |
| 1981 int | |
|
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1982 hexhex2nr(char_u *p) |
| 7 | 1983 { |
| 1984 if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1])) | |
| 1985 return -1; | |
| 1986 return (hex2nr(p[0]) << 4) + hex2nr(p[1]); | |
| 1987 } | |
| 1988 #endif | |
| 1989 | |
| 1990 /* | |
| 1991 * Return TRUE if "str" starts with a backslash that should be removed. | |
| 1992 * For MS-DOS, WIN32 and OS/2 this is only done when the character after the | |
| 1993 * backslash is not a normal file name character. | |
| 1994 * '$' is a valid file name character, we don't remove the backslash before | |
| 1995 * it. This means it is not possible to use an environment variable after a | |
| 1996 * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works. | |
| 1997 * Although "\ name" is valid, the backslash in "Program\ files" must be | |
| 1998 * removed. Assume a file name doesn't start with a space. | |
| 1999 * For multi-byte names, never remove a backslash before a non-ascii | |
| 2000 * character, assume that all multi-byte characters are valid file name | |
| 2001 * characters. | |
| 2002 */ | |
| 2003 int | |
|
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2004 rem_backslash(char_u *str) |
| 7 | 2005 { |
| 2006 #ifdef BACKSLASH_IN_FILENAME | |
| 2007 return (str[0] == '\\' | |
| 2008 # ifdef FEAT_MBYTE | |
| 2009 && str[1] < 0x80 | |
| 2010 # endif | |
| 2011 && (str[1] == ' ' | |
| 2012 || (str[1] != NUL | |
| 2013 && str[1] != '*' | |
| 2014 && str[1] != '?' | |
| 2015 && !vim_isfilec(str[1])))); | |
| 2016 #else | |
| 2017 return (str[0] == '\\' && str[1] != NUL); | |
| 2018 #endif | |
| 2019 } | |
| 2020 | |
| 2021 /* | |
| 2022 * Halve the number of backslashes in a file name argument. | |
| 2023 * For MS-DOS we only do this if the character after the backslash | |
| 2024 * is not a normal file character. | |
| 2025 */ | |
| 2026 void | |
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2027 backslash_halve(char_u *p) |
| 7 | 2028 { |
| 2029 for ( ; *p; ++p) | |
| 2030 if (rem_backslash(p)) | |
| 1621 | 2031 STRMOVE(p, p + 1); |
| 7 | 2032 } |
| 2033 | |
| 2034 /* | |
| 2035 * backslash_halve() plus save the result in allocated memory. | |
| 2036 */ | |
| 2037 char_u * | |
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parents:
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2038 backslash_halve_save(char_u *p) |
| 7 | 2039 { |
| 2040 char_u *res; | |
| 2041 | |
| 2042 res = vim_strsave(p); | |
| 2043 if (res == NULL) | |
| 2044 return p; | |
| 2045 backslash_halve(res); | |
| 2046 return res; | |
| 2047 } | |
| 2048 | |
| 2049 #if (defined(EBCDIC) && defined(FEAT_POSTSCRIPT)) || defined(PROTO) | |
| 2050 /* | |
| 2051 * Table for EBCDIC to ASCII conversion unashamedly taken from xxd.c! | |
| 2052 * The first 64 entries have been added to map control characters defined in | |
| 2053 * ascii.h | |
| 2054 */ | |
| 2055 static char_u ebcdic2ascii_tab[256] = | |
| 2056 { | |
| 2057 0000, 0001, 0002, 0003, 0004, 0011, 0006, 0177, | |
| 2058 0010, 0011, 0012, 0013, 0014, 0015, 0016, 0017, | |
| 2059 0020, 0021, 0022, 0023, 0024, 0012, 0010, 0027, | |
| 2060 0030, 0031, 0032, 0033, 0033, 0035, 0036, 0037, | |
| 2061 0040, 0041, 0042, 0043, 0044, 0045, 0046, 0047, | |
| 2062 0050, 0051, 0052, 0053, 0054, 0055, 0056, 0057, | |
| 2063 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, | |
| 2064 0070, 0071, 0072, 0073, 0074, 0075, 0076, 0077, | |
| 2065 0040, 0240, 0241, 0242, 0243, 0244, 0245, 0246, | |
| 2066 0247, 0250, 0325, 0056, 0074, 0050, 0053, 0174, | |
| 2067 0046, 0251, 0252, 0253, 0254, 0255, 0256, 0257, | |
| 2068 0260, 0261, 0041, 0044, 0052, 0051, 0073, 0176, | |
| 2069 0055, 0057, 0262, 0263, 0264, 0265, 0266, 0267, | |
| 2070 0270, 0271, 0313, 0054, 0045, 0137, 0076, 0077, | |
| 2071 0272, 0273, 0274, 0275, 0276, 0277, 0300, 0301, | |
| 2072 0302, 0140, 0072, 0043, 0100, 0047, 0075, 0042, | |
| 2073 0303, 0141, 0142, 0143, 0144, 0145, 0146, 0147, | |
| 2074 0150, 0151, 0304, 0305, 0306, 0307, 0310, 0311, | |
| 2075 0312, 0152, 0153, 0154, 0155, 0156, 0157, 0160, | |
| 2076 0161, 0162, 0136, 0314, 0315, 0316, 0317, 0320, | |
| 2077 0321, 0345, 0163, 0164, 0165, 0166, 0167, 0170, | |
| 2078 0171, 0172, 0322, 0323, 0324, 0133, 0326, 0327, | |
| 2079 0330, 0331, 0332, 0333, 0334, 0335, 0336, 0337, | |
| 2080 0340, 0341, 0342, 0343, 0344, 0135, 0346, 0347, | |
| 2081 0173, 0101, 0102, 0103, 0104, 0105, 0106, 0107, | |
| 2082 0110, 0111, 0350, 0351, 0352, 0353, 0354, 0355, | |
| 2083 0175, 0112, 0113, 0114, 0115, 0116, 0117, 0120, | |
| 2084 0121, 0122, 0356, 0357, 0360, 0361, 0362, 0363, | |
| 2085 0134, 0237, 0123, 0124, 0125, 0126, 0127, 0130, | |
| 2086 0131, 0132, 0364, 0365, 0366, 0367, 0370, 0371, | |
| 2087 0060, 0061, 0062, 0063, 0064, 0065, 0066, 0067, | |
| 2088 0070, 0071, 0372, 0373, 0374, 0375, 0376, 0377 | |
| 2089 }; | |
| 2090 | |
| 2091 /* | |
| 2092 * Convert a buffer worth of characters from EBCDIC to ASCII. Only useful if | |
| 2093 * wanting 7-bit ASCII characters out the other end. | |
| 2094 */ | |
| 2095 void | |
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diff
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2096 ebcdic2ascii(char_u *buffer, int len) |
| 7 | 2097 { |
| 2098 int i; | |
| 2099 | |
| 2100 for (i = 0; i < len; i++) | |
| 2101 buffer[i] = ebcdic2ascii_tab[buffer[i]]; | |
| 2102 } | |
| 2103 #endif |