Mercurial > vim
annotate src/charset.c @ 29234:96ff6c230a66 v8.2.5136
patch 8.2.5136: debugger test fails when run with valgrind
Commit: https://github.com/vim/vim/commit/e366ed4f2c6fa8cb663f1b9599b39d57ddbd8a2a
Author: Bram Moolenaar <Bram@vim.org>
Date: Sun Jun 19 20:13:56 2022 +0100
patch 8.2.5136: debugger test fails when run with valgrind
Problem: Debugger test fails when run with valgrind.
Solution: Wait longer when using valgrind.
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Sun, 19 Jun 2022 21:15:03 +0200 |
| parents | 8973f2f00872 |
| children | 057c26b5c33a |
| rev | line source |
|---|---|
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 7 | 2 * |
| 3 * VIM - Vi IMproved by Bram Moolenaar | |
| 4 * | |
| 5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
| 6 * Do ":help credits" in Vim to see a list of people who contributed. | |
| 7 * See README.txt for an overview of the Vim source code. | |
| 8 */ | |
| 9 | |
| 10 #include "vim.h" | |
| 11 | |
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12 #if defined(HAVE_WCHAR_H) |
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13 # include <wchar.h> // for towupper() and towlower() |
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14 #endif |
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15 static int win_nolbr_chartabsize(win_T *wp, char_u *s, colnr_T col, int *headp); |
| 7 | 16 |
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17 static unsigned nr2hex(unsigned c); |
| 7 | 18 |
| 19 static int chartab_initialized = FALSE; | |
| 20 | |
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21 // b_chartab[] is an array of 32 bytes, each bit representing one of the |
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22 // characters 0-255. |
| 7 | 23 #define SET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] |= (1 << ((c) & 0x7)) |
| 24 #define RESET_CHARTAB(buf, c) (buf)->b_chartab[(unsigned)(c) >> 3] &= ~(1 << ((c) & 0x7)) | |
| 25 #define GET_CHARTAB(buf, c) ((buf)->b_chartab[(unsigned)(c) >> 3] & (1 << ((c) & 0x7))) | |
| 26 | |
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27 // table used below, see init_chartab() for an explanation |
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28 static char_u g_chartab[256]; |
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29 |
| 7 | 30 /* |
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31 * Flags for g_chartab[]. |
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32 */ |
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33 #define CT_CELL_MASK 0x07 // mask: nr of display cells (1, 2 or 4) |
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34 #define CT_PRINT_CHAR 0x10 // flag: set for printable chars |
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35 #define CT_ID_CHAR 0x20 // flag: set for ID chars |
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36 #define CT_FNAME_CHAR 0x40 // flag: set for file name chars |
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37 |
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38 static int in_win_border(win_T *wp, colnr_T vcol); |
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39 |
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40 /* |
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41 * Fill g_chartab[]. Also fills curbuf->b_chartab[] with flags for keyword |
| 7 | 42 * characters for current buffer. |
| 43 * | |
| 44 * Depends on the option settings 'iskeyword', 'isident', 'isfname', | |
| 45 * 'isprint' and 'encoding'. | |
| 46 * | |
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47 * The index in g_chartab[] depends on 'encoding': |
| 7 | 48 * - For non-multi-byte index with the byte (same as the character). |
| 49 * - For DBCS index with the first byte. | |
| 50 * - For UTF-8 index with the character (when first byte is up to 0x80 it is | |
| 51 * the same as the character, if the first byte is 0x80 and above it depends | |
| 52 * on further bytes). | |
| 53 * | |
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54 * The contents of g_chartab[]: |
| 7 | 55 * - The lower two bits, masked by CT_CELL_MASK, give the number of display |
| 56 * cells the character occupies (1 or 2). Not valid for UTF-8 above 0x80. | |
| 57 * - CT_PRINT_CHAR bit is set when the character is printable (no need to | |
| 58 * translate the character before displaying it). Note that only DBCS | |
| 59 * characters can have 2 display cells and still be printable. | |
| 60 * - CT_FNAME_CHAR bit is set when the character can be in a file name. | |
| 61 * - CT_ID_CHAR bit is set when the character can be in an identifier. | |
| 62 * | |
| 63 * Return FAIL if 'iskeyword', 'isident', 'isfname' or 'isprint' option has an | |
| 64 * error, OK otherwise. | |
| 65 */ | |
| 66 int | |
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67 init_chartab(void) |
| 7 | 68 { |
| 69 return buf_init_chartab(curbuf, TRUE); | |
| 70 } | |
| 71 | |
| 72 int | |
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73 buf_init_chartab( |
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74 buf_T *buf, |
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75 int global) // FALSE: only set buf->b_chartab[] |
| 7 | 76 { |
| 77 int c; | |
| 78 int c2; | |
| 79 char_u *p; | |
| 80 int i; | |
| 81 int tilde; | |
| 82 int do_isalpha; | |
| 83 | |
| 84 if (global) | |
| 85 { | |
| 86 /* | |
| 87 * Set the default size for printable characters: | |
| 88 * From <Space> to '~' is 1 (printable), others are 2 (not printable). | |
| 89 * This also inits all 'isident' and 'isfname' flags to FALSE. | |
| 90 */ | |
| 91 c = 0; | |
| 92 while (c < ' ') | |
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93 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| 7 | 94 while (c <= '~') |
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95 g_chartab[c++] = 1 + CT_PRINT_CHAR; |
| 7 | 96 while (c < 256) |
| 97 { | |
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98 // UTF-8: bytes 0xa0 - 0xff are printable (latin1) |
| 7 | 99 if (enc_utf8 && c >= 0xa0) |
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100 g_chartab[c++] = CT_PRINT_CHAR + 1; |
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101 // euc-jp characters starting with 0x8e are single width |
| 7 | 102 else if (enc_dbcs == DBCS_JPNU && c == 0x8e) |
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103 g_chartab[c++] = CT_PRINT_CHAR + 1; |
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104 // other double-byte chars can be printable AND double-width |
| 7 | 105 else if (enc_dbcs != 0 && MB_BYTE2LEN(c) == 2) |
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106 g_chartab[c++] = CT_PRINT_CHAR + 2; |
| 7 | 107 else |
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108 // the rest is unprintable by default |
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109 g_chartab[c++] = (dy_flags & DY_UHEX) ? 4 : 2; |
| 7 | 110 } |
| 111 | |
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112 // Assume that every multi-byte char is a filename character. |
| 7 | 113 for (c = 1; c < 256; ++c) |
| 114 if ((enc_dbcs != 0 && MB_BYTE2LEN(c) > 1) | |
| 115 || (enc_dbcs == DBCS_JPNU && c == 0x8e) | |
| 116 || (enc_utf8 && c >= 0xa0)) | |
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117 g_chartab[c] |= CT_FNAME_CHAR; |
| 7 | 118 } |
| 119 | |
| 120 /* | |
| 121 * Init word char flags all to FALSE | |
| 122 */ | |
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123 CLEAR_FIELD(buf->b_chartab); |
| 227 | 124 if (enc_dbcs != 0) |
| 125 for (c = 0; c < 256; ++c) | |
| 126 { | |
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127 // double-byte characters are probably word characters |
| 227 | 128 if (MB_BYTE2LEN(c) == 2) |
| 129 SET_CHARTAB(buf, c); | |
| 130 } | |
| 7 | 131 |
| 132 /* | |
| 133 * In lisp mode the '-' character is included in keywords. | |
| 134 */ | |
| 135 if (buf->b_p_lisp) | |
| 136 SET_CHARTAB(buf, '-'); | |
| 137 | |
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138 // Walk through the 'isident', 'iskeyword', 'isfname' and 'isprint' |
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139 // options Each option is a list of characters, character numbers or |
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140 // ranges, separated by commas, e.g.: "200-210,x,#-178,-" |
| 7 | 141 for (i = global ? 0 : 3; i <= 3; ++i) |
| 142 { | |
| 143 if (i == 0) | |
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144 p = p_isi; // first round: 'isident' |
| 7 | 145 else if (i == 1) |
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146 p = p_isp; // second round: 'isprint' |
| 7 | 147 else if (i == 2) |
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148 p = p_isf; // third round: 'isfname' |
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149 else // i == 3 |
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150 p = buf->b_p_isk; // fourth round: 'iskeyword' |
| 7 | 151 |
| 152 while (*p) | |
| 153 { | |
| 154 tilde = FALSE; | |
| 155 do_isalpha = FALSE; | |
| 156 if (*p == '^' && p[1] != NUL) | |
| 157 { | |
| 158 tilde = TRUE; | |
| 159 ++p; | |
| 160 } | |
| 161 if (VIM_ISDIGIT(*p)) | |
| 162 c = getdigits(&p); | |
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163 else if (has_mbyte) |
| 1955 | 164 c = mb_ptr2char_adv(&p); |
| 165 else | |
| 7 | 166 c = *p++; |
| 167 c2 = -1; | |
| 168 if (*p == '-' && p[1] != NUL) | |
| 169 { | |
| 170 ++p; | |
| 171 if (VIM_ISDIGIT(*p)) | |
| 172 c2 = getdigits(&p); | |
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173 else if (has_mbyte) |
| 1979 | 174 c2 = mb_ptr2char_adv(&p); |
| 175 else | |
| 7 | 176 c2 = *p++; |
| 177 } | |
| 1979 | 178 if (c <= 0 || c >= 256 || (c2 < c && c2 != -1) || c2 >= 256 |
| 7 | 179 || !(*p == NUL || *p == ',')) |
| 180 return FAIL; | |
| 181 | |
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182 if (c2 == -1) // not a range |
| 7 | 183 { |
| 184 /* | |
| 185 * A single '@' (not "@-@"): | |
| 186 * Decide on letters being ID/printable/keyword chars with | |
| 187 * standard function isalpha(). This takes care of locale for | |
| 188 * single-byte characters). | |
| 189 */ | |
| 190 if (c == '@') | |
| 191 { | |
| 192 do_isalpha = TRUE; | |
| 193 c = 1; | |
| 194 c2 = 255; | |
| 195 } | |
| 196 else | |
| 197 c2 = c; | |
| 198 } | |
| 199 while (c <= c2) | |
| 200 { | |
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201 // Use the MB_ functions here, because isalpha() doesn't |
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202 // work properly when 'encoding' is "latin1" and the locale is |
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203 // "C". |
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204 if (!do_isalpha || MB_ISLOWER(c) || MB_ISUPPER(c)) |
| 7 | 205 { |
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206 if (i == 0) // (re)set ID flag |
| 7 | 207 { |
| 208 if (tilde) | |
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209 g_chartab[c] &= ~CT_ID_CHAR; |
| 7 | 210 else |
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211 g_chartab[c] |= CT_ID_CHAR; |
| 7 | 212 } |
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213 else if (i == 1) // (re)set printable |
| 7 | 214 { |
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215 if ((c < ' ' || c > '~' |
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216 // For double-byte we keep the cell width, so |
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217 // that we can detect it from the first byte. |
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218 ) && !(enc_dbcs && MB_BYTE2LEN(c) == 2)) |
| 7 | 219 { |
| 220 if (tilde) | |
| 221 { | |
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222 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) |
| 7 | 223 + ((dy_flags & DY_UHEX) ? 4 : 2); |
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224 g_chartab[c] &= ~CT_PRINT_CHAR; |
| 7 | 225 } |
| 226 else | |
| 227 { | |
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228 g_chartab[c] = (g_chartab[c] & ~CT_CELL_MASK) + 1; |
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229 g_chartab[c] |= CT_PRINT_CHAR; |
| 7 | 230 } |
| 231 } | |
| 232 } | |
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233 else if (i == 2) // (re)set fname flag |
| 7 | 234 { |
| 235 if (tilde) | |
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236 g_chartab[c] &= ~CT_FNAME_CHAR; |
| 7 | 237 else |
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238 g_chartab[c] |= CT_FNAME_CHAR; |
| 7 | 239 } |
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240 else // i == 3 (re)set keyword flag |
| 7 | 241 { |
| 242 if (tilde) | |
| 243 RESET_CHARTAB(buf, c); | |
| 244 else | |
| 245 SET_CHARTAB(buf, c); | |
| 246 } | |
| 247 } | |
| 248 ++c; | |
| 249 } | |
| 4096 | 250 |
| 251 c = *p; | |
| 7 | 252 p = skip_to_option_part(p); |
| 4096 | 253 if (c == ',' && *p == NUL) |
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254 // Trailing comma is not allowed. |
| 4096 | 255 return FAIL; |
| 7 | 256 } |
| 257 } | |
| 258 chartab_initialized = TRUE; | |
| 259 return OK; | |
| 260 } | |
| 261 | |
| 262 /* | |
| 263 * Translate any special characters in buf[bufsize] in-place. | |
| 264 * The result is a string with only printable characters, but if there is not | |
| 265 * enough room, not all characters will be translated. | |
| 266 */ | |
| 267 void | |
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268 trans_characters( |
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269 char_u *buf, |
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270 int bufsize) |
| 7 | 271 { |
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272 int len; // length of string needing translation |
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273 int room; // room in buffer after string |
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274 char_u *trs; // translated character |
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275 int trs_len; // length of trs[] |
| 7 | 276 |
| 277 len = (int)STRLEN(buf); | |
| 278 room = bufsize - len; | |
| 279 while (*buf != 0) | |
| 280 { | |
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281 // Assume a multi-byte character doesn't need translation. |
| 474 | 282 if (has_mbyte && (trs_len = (*mb_ptr2len)(buf)) > 1) |
| 7 | 283 len -= trs_len; |
| 284 else | |
| 285 { | |
| 286 trs = transchar_byte(*buf); | |
| 287 trs_len = (int)STRLEN(trs); | |
| 288 if (trs_len > 1) | |
| 289 { | |
| 290 room -= trs_len - 1; | |
| 291 if (room <= 0) | |
| 292 return; | |
| 293 mch_memmove(buf + trs_len, buf + 1, (size_t)len); | |
| 294 } | |
| 295 mch_memmove(buf, trs, (size_t)trs_len); | |
| 296 --len; | |
| 297 } | |
| 298 buf += trs_len; | |
| 299 } | |
| 300 } | |
| 301 | |
| 302 /* | |
| 303 * Translate a string into allocated memory, replacing special chars with | |
| 304 * printable chars. Returns NULL when out of memory. | |
| 305 */ | |
| 306 char_u * | |
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307 transstr(char_u *s) |
| 7 | 308 { |
| 309 char_u *res; | |
| 310 char_u *p; | |
| 311 int l, len, c; | |
| 312 char_u hexbuf[11]; | |
| 313 | |
| 314 if (has_mbyte) | |
| 315 { | |
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316 // Compute the length of the result, taking account of unprintable |
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317 // multi-byte characters. |
| 7 | 318 len = 0; |
| 319 p = s; | |
| 320 while (*p != NUL) | |
| 321 { | |
| 474 | 322 if ((l = (*mb_ptr2len)(p)) > 1) |
| 7 | 323 { |
| 324 c = (*mb_ptr2char)(p); | |
| 325 p += l; | |
| 326 if (vim_isprintc(c)) | |
| 327 len += l; | |
| 328 else | |
| 329 { | |
| 330 transchar_hex(hexbuf, c); | |
| 835 | 331 len += (int)STRLEN(hexbuf); |
| 7 | 332 } |
| 333 } | |
| 334 else | |
| 335 { | |
| 336 l = byte2cells(*p++); | |
| 337 if (l > 0) | |
| 338 len += l; | |
| 339 else | |
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340 len += 4; // illegal byte sequence |
| 7 | 341 } |
| 342 } | |
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343 res = alloc(len + 1); |
| 7 | 344 } |
| 345 else | |
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346 res = alloc(vim_strsize(s) + 1); |
| 7 | 347 if (res != NULL) |
| 348 { | |
| 349 *res = NUL; | |
| 350 p = s; | |
| 351 while (*p != NUL) | |
| 352 { | |
| 474 | 353 if (has_mbyte && (l = (*mb_ptr2len)(p)) > 1) |
| 7 | 354 { |
| 355 c = (*mb_ptr2char)(p); | |
| 356 if (vim_isprintc(c)) | |
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357 STRNCAT(res, p, l); // append printable multi-byte char |
| 7 | 358 else |
| 359 transchar_hex(res + STRLEN(res), c); | |
| 360 p += l; | |
| 361 } | |
| 362 else | |
| 363 STRCAT(res, transchar_byte(*p++)); | |
| 364 } | |
| 365 } | |
| 366 return res; | |
| 367 } | |
| 368 | |
| 369 /* | |
| 221 | 370 * Convert the string "str[orglen]" to do ignore-case comparing. Uses the |
| 371 * current locale. | |
| 130 | 372 * When "buf" is NULL returns an allocated string (NULL for out-of-memory). |
| 373 * Otherwise puts the result in "buf[buflen]". | |
| 7 | 374 */ |
| 375 char_u * | |
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376 str_foldcase( |
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377 char_u *str, |
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378 int orglen, |
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379 char_u *buf, |
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380 int buflen) |
| 7 | 381 { |
| 382 garray_T ga; | |
| 383 int i; | |
| 130 | 384 int len = orglen; |
| 7 | 385 |
| 386 #define GA_CHAR(i) ((char_u *)ga.ga_data)[i] | |
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387 #define GA_PTR(i) ((char_u *)ga.ga_data + (i)) |
| 130 | 388 #define STR_CHAR(i) (buf == NULL ? GA_CHAR(i) : buf[i]) |
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389 #define STR_PTR(i) (buf == NULL ? GA_PTR(i) : buf + (i)) |
| 7 | 390 |
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391 // Copy "str" into "buf" or allocated memory, unmodified. |
| 130 | 392 if (buf == NULL) |
| 393 { | |
| 394 ga_init2(&ga, 1, 10); | |
| 395 if (ga_grow(&ga, len + 1) == FAIL) | |
| 396 return NULL; | |
| 397 mch_memmove(ga.ga_data, str, (size_t)len); | |
| 398 ga.ga_len = len; | |
| 399 } | |
| 400 else | |
| 401 { | |
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402 if (len >= buflen) // Ugly! |
| 130 | 403 len = buflen - 1; |
| 404 mch_memmove(buf, str, (size_t)len); | |
| 405 } | |
| 406 if (buf == NULL) | |
| 407 GA_CHAR(len) = NUL; | |
| 408 else | |
| 409 buf[len] = NUL; | |
| 7 | 410 |
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411 // Make each character lower case. |
| 7 | 412 i = 0; |
| 130 | 413 while (STR_CHAR(i) != NUL) |
| 7 | 414 { |
| 130 | 415 if (enc_utf8 || (has_mbyte && MB_BYTE2LEN(STR_CHAR(i)) > 1)) |
| 7 | 416 { |
| 417 if (enc_utf8) | |
| 418 { | |
| 1654 | 419 int c = utf_ptr2char(STR_PTR(i)); |
| 3263 | 420 int olen = utf_ptr2len(STR_PTR(i)); |
| 1654 | 421 int lc = utf_tolower(c); |
| 7 | 422 |
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423 // Only replace the character when it is not an invalid |
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424 // sequence (ASCII character or more than one byte) and |
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425 // utf_tolower() doesn't return the original character. |
| 3263 | 426 if ((c < 0x80 || olen > 1) && c != lc) |
| 7 | 427 { |
| 3263 | 428 int nlen = utf_char2len(lc); |
| 7 | 429 |
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430 // If the byte length changes need to shift the following |
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431 // characters forward or backward. |
| 3263 | 432 if (olen != nlen) |
| 7 | 433 { |
| 3263 | 434 if (nlen > olen) |
| 130 | 435 { |
| 3263 | 436 if (buf == NULL |
| 437 ? ga_grow(&ga, nlen - olen + 1) == FAIL | |
| 438 : len + nlen - olen >= buflen) | |
| 7 | 439 { |
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440 // out of memory, keep old char |
| 7 | 441 lc = c; |
| 3263 | 442 nlen = olen; |
| 7 | 443 } |
| 130 | 444 } |
| 3263 | 445 if (olen != nlen) |
| 7 | 446 { |
| 130 | 447 if (buf == NULL) |
| 448 { | |
| 3263 | 449 STRMOVE(GA_PTR(i) + nlen, GA_PTR(i) + olen); |
| 450 ga.ga_len += nlen - olen; | |
| 130 | 451 } |
| 452 else | |
| 453 { | |
| 3263 | 454 STRMOVE(buf + i + nlen, buf + i + olen); |
| 455 len += nlen - olen; | |
| 130 | 456 } |
| 7 | 457 } |
| 458 } | |
| 130 | 459 (void)utf_char2bytes(lc, STR_PTR(i)); |
| 7 | 460 } |
| 461 } | |
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462 // skip to next multi-byte char |
| 474 | 463 i += (*mb_ptr2len)(STR_PTR(i)); |
| 7 | 464 } |
| 465 else | |
| 466 { | |
| 130 | 467 if (buf == NULL) |
| 468 GA_CHAR(i) = TOLOWER_LOC(GA_CHAR(i)); | |
| 469 else | |
| 470 buf[i] = TOLOWER_LOC(buf[i]); | |
| 7 | 471 ++i; |
| 472 } | |
| 473 } | |
| 474 | |
| 130 | 475 if (buf == NULL) |
| 476 return (char_u *)ga.ga_data; | |
| 477 return buf; | |
| 7 | 478 } |
| 479 | |
| 480 /* | |
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481 * Catch 22: g_chartab[] can't be initialized before the options are |
| 7 | 482 * initialized, and initializing options may cause transchar() to be called! |
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483 * When chartab_initialized == FALSE don't use g_chartab[]. |
| 7 | 484 * Does NOT work for multi-byte characters, c must be <= 255. |
| 485 * Also doesn't work for the first byte of a multi-byte, "c" must be a | |
| 486 * character! | |
| 487 */ | |
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488 static char_u transchar_charbuf[7]; |
| 7 | 489 |
| 490 char_u * | |
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491 transchar(int c) |
| 7 | 492 { |
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493 return transchar_buf(curbuf, c); |
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494 } |
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495 |
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496 char_u * |
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497 transchar_buf(buf_T *buf, int c) |
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498 { |
| 7 | 499 int i; |
| 500 | |
| 501 i = 0; | |
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502 if (IS_SPECIAL(c)) // special key code, display as ~@ char |
| 7 | 503 { |
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504 transchar_charbuf[0] = '~'; |
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505 transchar_charbuf[1] = '@'; |
| 7 | 506 i = 2; |
| 507 c = K_SECOND(c); | |
| 508 } | |
| 509 | |
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510 if ((!chartab_initialized && ((c >= ' ' && c <= '~'))) |
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511 || (c < 256 && vim_isprintc_strict(c))) |
| 7 | 512 { |
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513 // printable character |
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514 transchar_charbuf[i] = c; |
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515 transchar_charbuf[i + 1] = NUL; |
| 7 | 516 } |
| 517 else | |
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518 transchar_nonprint(buf, transchar_charbuf + i, c); |
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519 return transchar_charbuf; |
| 7 | 520 } |
| 521 | |
| 522 /* | |
| 523 * Like transchar(), but called with a byte instead of a character. Checks | |
| 524 * for an illegal UTF-8 byte. | |
| 525 */ | |
| 526 char_u * | |
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527 transchar_byte(int c) |
| 7 | 528 { |
| 529 if (enc_utf8 && c >= 0x80) | |
| 530 { | |
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531 transchar_nonprint(curbuf, transchar_charbuf, c); |
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532 return transchar_charbuf; |
| 7 | 533 } |
| 534 return transchar(c); | |
| 535 } | |
| 536 | |
| 537 /* | |
| 538 * Convert non-printable character to two or more printable characters in | |
|
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539 * "buf[]". "charbuf" needs to be able to hold five bytes. |
| 7 | 540 * Does NOT work for multi-byte characters, c must be <= 255. |
| 541 */ | |
| 542 void | |
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543 transchar_nonprint(buf_T *buf, char_u *charbuf, int c) |
| 7 | 544 { |
| 545 if (c == NL) | |
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546 c = NUL; // we use newline in place of a NUL |
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547 else if (c == CAR && get_fileformat(buf) == EOL_MAC) |
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548 c = NL; // we use CR in place of NL in this case |
| 7 | 549 |
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550 if (dy_flags & DY_UHEX) // 'display' has "uhex" |
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551 transchar_hex(charbuf, c); |
| 7 | 552 |
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553 else if (c <= 0x7f) // 0x00 - 0x1f and 0x7f |
| 7 | 554 { |
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555 charbuf[0] = '^'; |
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556 charbuf[1] = c ^ 0x40; // DEL displayed as ^? |
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557 charbuf[2] = NUL; |
| 7 | 558 } |
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559 else if (enc_utf8) |
| 7 | 560 { |
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561 transchar_hex(charbuf, c); |
| 7 | 562 } |
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563 else if (c >= ' ' + 0x80 && c <= '~' + 0x80) // 0xa0 - 0xfe |
| 7 | 564 { |
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565 charbuf[0] = '|'; |
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566 charbuf[1] = c - 0x80; |
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567 charbuf[2] = NUL; |
| 7 | 568 } |
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569 else // 0x80 - 0x9f and 0xff |
| 7 | 570 { |
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571 charbuf[0] = '~'; |
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572 charbuf[1] = (c - 0x80) ^ 0x40; // 0xff displayed as ~? |
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573 charbuf[2] = NUL; |
| 7 | 574 } |
| 575 } | |
| 576 | |
| 577 void | |
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578 transchar_hex(char_u *buf, int c) |
| 7 | 579 { |
| 580 int i = 0; | |
| 581 | |
| 582 buf[0] = '<'; | |
| 583 if (c > 255) | |
| 584 { | |
| 585 buf[++i] = nr2hex((unsigned)c >> 12); | |
| 586 buf[++i] = nr2hex((unsigned)c >> 8); | |
| 587 } | |
| 588 buf[++i] = nr2hex((unsigned)c >> 4); | |
| 1869 | 589 buf[++i] = nr2hex((unsigned)c); |
| 7 | 590 buf[++i] = '>'; |
| 591 buf[++i] = NUL; | |
| 592 } | |
| 593 | |
| 594 /* | |
| 595 * Convert the lower 4 bits of byte "c" to its hex character. | |
| 596 * Lower case letters are used to avoid the confusion of <F1> being 0xf1 or | |
| 597 * function key 1. | |
| 598 */ | |
| 1869 | 599 static unsigned |
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600 nr2hex(unsigned c) |
| 7 | 601 { |
| 602 if ((c & 0xf) <= 9) | |
| 603 return (c & 0xf) + '0'; | |
| 604 return (c & 0xf) - 10 + 'a'; | |
| 605 } | |
| 606 | |
| 607 /* | |
| 608 * Return number of display cells occupied by byte "b". | |
| 609 * Caller must make sure 0 <= b <= 255. | |
| 610 * For multi-byte mode "b" must be the first byte of a character. | |
| 611 * A TAB is counted as two cells: "^I". | |
| 612 * For UTF-8 mode this will return 0 for bytes >= 0x80, because the number of | |
| 613 * cells depends on further bytes. | |
| 614 */ | |
| 615 int | |
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616 byte2cells(int b) |
| 7 | 617 { |
| 618 if (enc_utf8 && b >= 0x80) | |
| 619 return 0; | |
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620 return (g_chartab[b] & CT_CELL_MASK); |
| 7 | 621 } |
| 622 | |
| 623 /* | |
| 624 * Return number of display cells occupied by character "c". | |
| 625 * "c" can be a special key (negative number) in which case 3 or 4 is returned. | |
| 626 * A TAB is counted as two cells: "^I" or four: "<09>". | |
| 627 */ | |
| 628 int | |
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629 char2cells(int c) |
| 7 | 630 { |
| 631 if (IS_SPECIAL(c)) | |
| 632 return char2cells(K_SECOND(c)) + 2; | |
| 633 if (c >= 0x80) | |
| 634 { | |
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635 // UTF-8: above 0x80 need to check the value |
| 7 | 636 if (enc_utf8) |
| 637 return utf_char2cells(c); | |
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638 // DBCS: double-byte means double-width, except for euc-jp with first |
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639 // byte 0x8e |
| 7 | 640 if (enc_dbcs != 0 && c >= 0x100) |
| 641 { | |
| 642 if (enc_dbcs == DBCS_JPNU && ((unsigned)c >> 8) == 0x8e) | |
| 643 return 1; | |
| 644 return 2; | |
| 645 } | |
| 646 } | |
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647 return (g_chartab[c & 0xff] & CT_CELL_MASK); |
| 7 | 648 } |
| 649 | |
| 650 /* | |
| 651 * Return number of display cells occupied by character at "*p". | |
| 652 * A TAB is counted as two cells: "^I" or four: "<09>". | |
| 653 */ | |
| 654 int | |
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655 ptr2cells(char_u *p) |
| 7 | 656 { |
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657 // For UTF-8 we need to look at more bytes if the first byte is >= 0x80. |
| 7 | 658 if (enc_utf8 && *p >= 0x80) |
| 659 return utf_ptr2cells(p); | |
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660 // For DBCS we can tell the cell count from the first byte. |
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661 return (g_chartab[*p] & CT_CELL_MASK); |
| 7 | 662 } |
| 663 | |
| 664 /* | |
| 3292 | 665 * Return the number of character cells string "s" will take on the screen, |
| 7 | 666 * counting TABs as two characters: "^I". |
| 667 */ | |
| 668 int | |
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669 vim_strsize(char_u *s) |
| 7 | 670 { |
| 671 return vim_strnsize(s, (int)MAXCOL); | |
| 672 } | |
| 673 | |
| 674 /* | |
| 3292 | 675 * Return the number of character cells string "s[len]" will take on the |
| 676 * screen, counting TABs as two characters: "^I". | |
| 7 | 677 */ |
| 678 int | |
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679 vim_strnsize(char_u *s, int len) |
| 7 | 680 { |
| 681 int size = 0; | |
| 682 | |
| 683 while (*s != NUL && --len >= 0) | |
| 684 if (has_mbyte) | |
| 685 { | |
| 474 | 686 int l = (*mb_ptr2len)(s); |
| 7 | 687 |
| 688 size += ptr2cells(s); | |
| 689 s += l; | |
| 690 len -= l - 1; | |
| 691 } | |
| 692 else | |
| 693 size += byte2cells(*s++); | |
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694 |
| 7 | 695 return size; |
| 696 } | |
| 697 | |
| 698 /* | |
| 699 * Return the number of characters 'c' will take on the screen, taking | |
| 700 * into account the size of a tab. | |
| 701 * Use a define to make it fast, this is used very often!!! | |
| 702 * Also see getvcol() below. | |
| 703 */ | |
| 704 | |
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705 #ifdef FEAT_VARTABS |
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706 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
|
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707 if (*(p) == TAB && (!(wp)->w_p_list || (wp)->w_lcs_chars.tab1)) \ |
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708 { \ |
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709 return tabstop_padding(col, (buf)->b_p_ts, (buf)->b_p_vts_array); \ |
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710 } \ |
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711 else \ |
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712 return ptr2cells(p); |
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713 #else |
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714 # define RET_WIN_BUF_CHARTABSIZE(wp, buf, p, col) \ |
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715 if (*(p) == TAB && (!(wp)->w_p_list || wp->w_lcs_chars.tab1)) \ |
| 7 | 716 { \ |
| 717 int ts; \ | |
| 718 ts = (buf)->b_p_ts; \ | |
| 719 return (int)(ts - (col % ts)); \ | |
| 720 } \ | |
| 721 else \ | |
| 722 return ptr2cells(p); | |
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723 #endif |
| 7 | 724 |
| 725 int | |
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726 chartabsize(char_u *p, colnr_T col) |
| 7 | 727 { |
| 728 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, p, col) | |
| 729 } | |
| 730 | |
| 731 #ifdef FEAT_LINEBREAK | |
| 732 static int | |
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733 win_chartabsize(win_T *wp, char_u *p, colnr_T col) |
| 7 | 734 { |
| 735 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, p, col) | |
| 736 } | |
| 737 #endif | |
| 738 | |
| 739 /* | |
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740 * Return the number of characters the string 's' will take on the screen, |
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741 * taking into account the size of a tab. |
| 7 | 742 */ |
| 743 int | |
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744 linetabsize(char_u *s) |
| 7 | 745 { |
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746 return linetabsize_col(0, s); |
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747 } |
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748 |
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749 /* |
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750 * Like linetabsize(), but starting at column "startcol". |
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751 */ |
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752 int |
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753 linetabsize_col(int startcol, char_u *s) |
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754 { |
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755 colnr_T col = startcol; |
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756 char_u *line = s; // pointer to start of line, for breakindent |
| 7 | 757 |
| 758 while (*s != NUL) | |
| 5995 | 759 col += lbr_chartabsize_adv(line, &s, col); |
| 7 | 760 return (int)col; |
| 761 } | |
| 762 | |
| 763 /* | |
| 764 * Like linetabsize(), but for a given window instead of the current one. | |
| 765 */ | |
| 766 int | |
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767 win_linetabsize(win_T *wp, char_u *line, colnr_T len) |
| 7 | 768 { |
| 769 colnr_T col = 0; | |
| 770 char_u *s; | |
| 771 | |
| 5995 | 772 for (s = line; *s != NUL && (len == MAXCOL || s < line + len); |
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773 MB_PTR_ADV(s)) |
| 5995 | 774 col += win_lbr_chartabsize(wp, line, s, col, NULL); |
| 7 | 775 return (int)col; |
| 776 } | |
| 777 | |
| 778 /* | |
| 42 | 779 * Return TRUE if 'c' is a normal identifier character: |
| 780 * Letters and characters from the 'isident' option. | |
| 7 | 781 */ |
| 782 int | |
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783 vim_isIDc(int c) |
| 7 | 784 { |
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785 return (c > 0 && c < 0x100 && (g_chartab[c] & CT_ID_CHAR)); |
| 7 | 786 } |
| 787 | |
| 788 /* | |
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789 * Like vim_isIDc() but not using the 'isident' option: letters, numbers and |
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790 * underscore. |
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791 */ |
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792 int |
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793 vim_isNormalIDc(int c) |
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794 { |
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795 return ASCII_ISALNUM(c) || c == '_'; |
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796 } |
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797 |
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798 /* |
| 7 | 799 * return TRUE if 'c' is a keyword character: Letters and characters from |
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800 * 'iskeyword' option for the current buffer. |
| 7 | 801 * For multi-byte characters mb_get_class() is used (builtin rules). |
| 802 */ | |
| 803 int | |
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804 vim_iswordc(int c) |
| 7 | 805 { |
| 4043 | 806 return vim_iswordc_buf(c, curbuf); |
| 807 } | |
| 808 | |
| 809 int | |
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810 vim_iswordc_buf(int c, buf_T *buf) |
| 4043 | 811 { |
| 7 | 812 if (c >= 0x100) |
| 813 { | |
| 814 if (enc_dbcs != 0) | |
| 1869 | 815 return dbcs_class((unsigned)c >> 8, (unsigned)(c & 0xff)) >= 2; |
| 7 | 816 if (enc_utf8) |
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817 return utf_class_buf(c, buf) >= 2; |
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818 return FALSE; |
| 7 | 819 } |
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820 return (c > 0 && GET_CHARTAB(buf, c) != 0); |
| 7 | 821 } |
| 822 | |
| 823 /* | |
| 824 * Just like vim_iswordc() but uses a pointer to the (multi-byte) character. | |
| 825 */ | |
| 826 int | |
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827 vim_iswordp(char_u *p) |
| 7 | 828 { |
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829 return vim_iswordp_buf(p, curbuf); |
| 7 | 830 } |
| 831 | |
| 832 int | |
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833 vim_iswordp_buf(char_u *p, buf_T *buf) |
| 7 | 834 { |
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835 int c = *p; |
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836 |
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837 if (has_mbyte && MB_BYTE2LEN(c) > 1) |
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838 c = (*mb_ptr2char)(p); |
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839 return vim_iswordc_buf(c, buf); |
| 7 | 840 } |
| 841 | |
| 842 /* | |
| 843 * return TRUE if 'c' is a valid file-name character | |
| 844 * Assume characters above 0x100 are valid (multi-byte). | |
| 845 */ | |
| 846 int | |
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847 vim_isfilec(int c) |
| 7 | 848 { |
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849 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_FNAME_CHAR))); |
| 7 | 850 } |
| 851 | |
| 852 /* | |
| 1369 | 853 * return TRUE if 'c' is a valid file-name character or a wildcard character |
| 854 * Assume characters above 0x100 are valid (multi-byte). | |
| 855 * Explicitly interpret ']' as a wildcard character as mch_has_wildcard("]") | |
| 856 * returns false. | |
| 857 */ | |
| 858 int | |
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859 vim_isfilec_or_wc(int c) |
| 1369 | 860 { |
| 861 char_u buf[2]; | |
| 862 | |
| 863 buf[0] = (char_u)c; | |
| 864 buf[1] = NUL; | |
| 865 return vim_isfilec(c) || c == ']' || mch_has_wildcard(buf); | |
| 866 } | |
| 867 | |
| 868 /* | |
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869 * Return TRUE if 'c' is a printable character. |
| 7 | 870 * Assume characters above 0x100 are printable (multi-byte), except for |
| 871 * Unicode. | |
| 872 */ | |
| 873 int | |
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874 vim_isprintc(int c) |
| 7 | 875 { |
| 876 if (enc_utf8 && c >= 0x100) | |
| 877 return utf_printable(c); | |
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878 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 879 } |
| 880 | |
| 881 /* | |
| 882 * Strict version of vim_isprintc(c), don't return TRUE if "c" is the head | |
| 883 * byte of a double-byte character. | |
| 884 */ | |
| 885 int | |
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886 vim_isprintc_strict(int c) |
| 7 | 887 { |
| 888 if (enc_dbcs != 0 && c < 0x100 && MB_BYTE2LEN(c) > 1) | |
| 889 return FALSE; | |
| 890 if (enc_utf8 && c >= 0x100) | |
| 891 return utf_printable(c); | |
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892 return (c >= 0x100 || (c > 0 && (g_chartab[c] & CT_PRINT_CHAR))); |
| 7 | 893 } |
| 894 | |
| 895 /* | |
| 896 * like chartabsize(), but also check for line breaks on the screen | |
| 897 */ | |
| 898 int | |
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899 lbr_chartabsize( |
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900 char_u *line UNUSED, // start of the line |
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901 unsigned char *s, |
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902 colnr_T col) |
| 7 | 903 { |
| 904 #ifdef FEAT_LINEBREAK | |
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905 if (!curwin->w_p_lbr && *get_showbreak_value(curwin) == NUL |
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906 && !curwin->w_p_bri) |
| 7 | 907 { |
| 908 #endif | |
| 909 if (curwin->w_p_wrap) | |
| 910 return win_nolbr_chartabsize(curwin, s, col, NULL); | |
| 911 RET_WIN_BUF_CHARTABSIZE(curwin, curbuf, s, col) | |
| 912 #ifdef FEAT_LINEBREAK | |
| 913 } | |
| 5995 | 914 return win_lbr_chartabsize(curwin, line == NULL ? s : line, s, col, NULL); |
| 7 | 915 #endif |
| 916 } | |
| 917 | |
| 918 /* | |
| 919 * Call lbr_chartabsize() and advance the pointer. | |
| 920 */ | |
| 921 int | |
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922 lbr_chartabsize_adv( |
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923 char_u *line, // start of the line |
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924 char_u **s, |
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925 colnr_T col) |
| 7 | 926 { |
| 927 int retval; | |
| 928 | |
| 5995 | 929 retval = lbr_chartabsize(line, *s, col); |
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930 MB_PTR_ADV(*s); |
| 7 | 931 return retval; |
| 932 } | |
| 933 | |
| 934 /* | |
| 935 * This function is used very often, keep it fast!!!! | |
| 936 * | |
| 937 * If "headp" not NULL, set *headp to the size of what we for 'showbreak' | |
| 938 * string at start of line. Warning: *headp is only set if it's a non-zero | |
| 939 * value, init to 0 before calling. | |
| 940 */ | |
| 941 int | |
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942 win_lbr_chartabsize( |
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943 win_T *wp, |
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944 char_u *line UNUSED, // start of the line |
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945 char_u *s, |
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946 colnr_T col, |
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947 int *headp UNUSED) |
| 7 | 948 { |
| 949 #ifdef FEAT_LINEBREAK | |
| 950 int c; | |
| 951 int size; | |
| 952 colnr_T col2; | |
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953 colnr_T col_adj = 0; // col + screen size of tab |
| 7 | 954 colnr_T colmax; |
| 955 int added; | |
| 956 int mb_added = 0; | |
| 957 int numberextra; | |
| 958 char_u *ps; | |
| 959 int tab_corr = (*s == TAB); | |
| 236 | 960 int n; |
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961 char_u *sbr; |
| 7 | 962 |
| 963 /* | |
| 5995 | 964 * No 'linebreak', 'showbreak' and 'breakindent': return quickly. |
| 7 | 965 */ |
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966 if (!wp->w_p_lbr && !wp->w_p_bri && *get_showbreak_value(wp) == NUL) |
| 7 | 967 #endif |
| 968 { | |
| 969 if (wp->w_p_wrap) | |
| 970 return win_nolbr_chartabsize(wp, s, col, headp); | |
| 971 RET_WIN_BUF_CHARTABSIZE(wp, wp->w_buffer, s, col) | |
| 972 } | |
| 973 | |
| 974 #ifdef FEAT_LINEBREAK | |
| 975 /* | |
| 976 * First get normal size, without 'linebreak' | |
| 977 */ | |
| 978 size = win_chartabsize(wp, s, col); | |
| 979 c = *s; | |
| 6024 | 980 if (tab_corr) |
| 981 col_adj = size - 1; | |
| 7 | 982 |
| 983 /* | |
| 984 * If 'linebreak' set check at a blank before a non-blank if the line | |
| 985 * needs a break here | |
| 986 */ | |
| 987 if (wp->w_p_lbr | |
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988 && VIM_ISBREAK(c) |
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989 && !VIM_ISBREAK((int)s[1]) |
| 7 | 990 && wp->w_p_wrap |
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991 && wp->w_width != 0) |
| 7 | 992 { |
| 993 /* | |
| 994 * Count all characters from first non-blank after a blank up to next | |
| 995 * non-blank after a blank. | |
| 996 */ | |
| 997 numberextra = win_col_off(wp); | |
| 998 col2 = col; | |
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999 colmax = (colnr_T)(wp->w_width - numberextra - col_adj); |
| 7 | 1000 if (col >= colmax) |
| 236 | 1001 { |
| 6024 | 1002 colmax += col_adj; |
| 1003 n = colmax + win_col_off2(wp); | |
| 236 | 1004 if (n > 0) |
| 6024 | 1005 colmax += (((col - colmax) / n) + 1) * n - col_adj; |
| 236 | 1006 } |
| 1007 | |
| 7 | 1008 for (;;) |
| 1009 { | |
| 1010 ps = s; | |
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1011 MB_PTR_ADV(s); |
| 7 | 1012 c = *s; |
| 1013 if (!(c != NUL | |
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1014 && (VIM_ISBREAK(c) |
|
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1015 || (!VIM_ISBREAK(c) |
|
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|
1016 && (col2 == col || !VIM_ISBREAK((int)*ps)))))) |
| 7 | 1017 break; |
| 1018 | |
| 1019 col2 += win_chartabsize(wp, s, col2); | |
|
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|
1020 if (col2 >= colmax) // doesn't fit |
| 7 | 1021 { |
| 6024 | 1022 size = colmax - col + col_adj; |
| 7 | 1023 break; |
| 1024 } | |
| 1025 } | |
| 1026 } | |
| 1027 else if (has_mbyte && size == 2 && MB_BYTE2LEN(*s) > 1 | |
| 1028 && wp->w_p_wrap && in_win_border(wp, col)) | |
| 1029 { | |
|
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|
1030 ++size; // Count the ">" in the last column. |
| 7 | 1031 mb_added = 1; |
| 1032 } | |
| 1033 | |
| 1034 /* | |
| 5995 | 1035 * May have to add something for 'breakindent' and/or 'showbreak' |
| 1036 * string at start of line. | |
| 7 | 1037 * Set *headp to the size of what we add. |
|
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|
1038 * Do not use 'showbreak' at the NUL after the text. |
| 7 | 1039 */ |
| 1040 added = 0; | |
|
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|
1041 sbr = c == NUL ? empty_option : get_showbreak_value(wp); |
|
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|
1042 if ((*sbr != NUL || wp->w_p_bri) && wp->w_p_wrap && col != 0) |
| 7 | 1043 { |
| 6503 | 1044 colnr_T sbrlen = 0; |
| 1045 int numberwidth = win_col_off(wp); | |
| 1046 | |
| 1047 numberextra = numberwidth; | |
| 7 | 1048 col += numberextra + mb_added; |
|
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1049 if (col >= (colnr_T)wp->w_width) |
| 7 | 1050 { |
|
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|
1051 col -= wp->w_width; |
|
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|
1052 numberextra = wp->w_width - (numberextra - win_col_off2(wp)); |
| 6503 | 1053 if (col >= numberextra && numberextra > 0) |
| 6312 | 1054 col %= numberextra; |
|
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|
1055 if (*sbr != NUL) |
| 6288 | 1056 { |
|
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|
1057 sbrlen = (colnr_T)MB_CHARLEN(sbr); |
| 6288 | 1058 if (col >= sbrlen) |
| 1059 col -= sbrlen; | |
| 1060 } | |
| 6503 | 1061 if (col >= numberextra && numberextra > 0) |
| 7 | 1062 col = col % numberextra; |
| 6503 | 1063 else if (col > 0 && numberextra > 0) |
| 1064 col += numberwidth - win_col_off2(wp); | |
| 1065 | |
| 1066 numberwidth -= win_col_off2(wp); | |
| 7 | 1067 } |
|
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|
1068 if (col == 0 || col + size + sbrlen > (colnr_T)wp->w_width) |
| 7 | 1069 { |
| 5995 | 1070 added = 0; |
|
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1071 if (*sbr != NUL) |
| 6503 | 1072 { |
|
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1073 if (size + sbrlen + numberwidth > (colnr_T)wp->w_width) |
| 6503 | 1074 { |
|
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|
1075 // calculate effective window width |
|
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1076 int width = (colnr_T)wp->w_width - sbrlen - numberwidth; |
|
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|
1077 int prev_width = col |
|
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1078 ? ((colnr_T)wp->w_width - (sbrlen + col)) : 0; |
|
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1079 |
|
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1080 if (width <= 0) |
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1081 width = (colnr_T)1; |
|
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|
1082 added += ((size - prev_width) / width) * vim_strsize(sbr); |
| 6503 | 1083 if ((size - prev_width) % width) |
|
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1084 // wrapped, add another length of 'sbr' |
|
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|
1085 added += vim_strsize(sbr); |
| 6503 | 1086 } |
| 1087 else | |
|
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|
1088 added += vim_strsize(sbr); |
| 6503 | 1089 } |
| 5995 | 1090 if (wp->w_p_bri) |
| 1091 added += get_breakindent_win(wp, line); | |
| 1092 | |
| 6160 | 1093 size += added; |
| 7 | 1094 if (col != 0) |
| 1095 added = 0; | |
| 1096 } | |
| 1097 } | |
| 1098 if (headp != NULL) | |
| 1099 *headp = added + mb_added; | |
| 1100 return size; | |
| 1101 #endif | |
| 1102 } | |
| 1103 | |
| 1104 /* | |
| 1105 * Like win_lbr_chartabsize(), except that we know 'linebreak' is off and | |
| 1106 * 'wrap' is on. This means we need to check for a double-byte character that | |
| 1107 * doesn't fit at the end of the screen line. | |
| 1108 */ | |
| 1109 static int | |
|
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1110 win_nolbr_chartabsize( |
|
83861277e6a3
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1111 win_T *wp, |
|
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1112 char_u *s, |
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1113 colnr_T col, |
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|
1114 int *headp) |
| 7 | 1115 { |
| 1116 int n; | |
| 1117 | |
|
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1118 if (*s == TAB && (!wp->w_p_list || wp->w_lcs_chars.tab1)) |
| 7 | 1119 { |
|
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1120 # ifdef FEAT_VARTABS |
|
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1121 return tabstop_padding(col, wp->w_buffer->b_p_ts, |
|
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1122 wp->w_buffer->b_p_vts_array); |
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1123 # else |
| 7 | 1124 n = wp->w_buffer->b_p_ts; |
| 1125 return (int)(n - (col % n)); | |
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1126 # endif |
| 7 | 1127 } |
| 1128 n = ptr2cells(s); | |
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1129 // Add one cell for a double-width character in the last column of the |
|
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1130 // window, displayed with a ">". |
| 7 | 1131 if (n == 2 && MB_BYTE2LEN(*s) > 1 && in_win_border(wp, col)) |
| 1132 { | |
| 1133 if (headp != NULL) | |
| 1134 *headp = 1; | |
| 1135 return 3; | |
| 1136 } | |
| 1137 return n; | |
| 1138 } | |
| 1139 | |
| 1140 /* | |
| 1141 * Return TRUE if virtual column "vcol" is in the rightmost column of window | |
| 1142 * "wp". | |
| 1143 */ | |
|
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|
1144 static int |
|
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|
1145 in_win_border(win_T *wp, colnr_T vcol) |
| 7 | 1146 { |
|
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1147 int width1; // width of first line (after line number) |
|
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1148 int width2; // width of further lines |
| 7 | 1149 |
|
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|
1150 if (wp->w_width == 0) // there is no border |
| 7 | 1151 return FALSE; |
|
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|
1152 width1 = wp->w_width - win_col_off(wp); |
| 1869 | 1153 if ((int)vcol < width1 - 1) |
| 7 | 1154 return FALSE; |
| 1869 | 1155 if ((int)vcol == width1 - 1) |
| 7 | 1156 return TRUE; |
| 1157 width2 = width1 + win_col_off2(wp); | |
| 1970 | 1158 if (width2 <= 0) |
| 1159 return FALSE; | |
| 7 | 1160 return ((vcol - width1) % width2 == width2 - 1); |
| 1161 } | |
| 1162 | |
| 1163 /* | |
| 1164 * Get virtual column number of pos. | |
| 1165 * start: on the first position of this character (TAB, ctrl) | |
| 1166 * cursor: where the cursor is on this character (first char, except for TAB) | |
| 1167 * end: on the last position of this character (TAB, ctrl) | |
| 1168 * | |
| 1169 * This is used very often, keep it fast! | |
| 1170 */ | |
| 1171 void | |
|
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1172 getvcol( |
|
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1173 win_T *wp, |
|
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1174 pos_T *pos, |
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|
1175 colnr_T *start, |
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1176 colnr_T *cursor, |
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|
1177 colnr_T *end) |
| 7 | 1178 { |
| 1179 colnr_T vcol; | |
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1180 char_u *ptr; // points to current char |
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|
1181 char_u *posptr; // points to char at pos->col |
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|
1182 char_u *line; // start of the line |
| 7 | 1183 int incr; |
| 1184 int head; | |
|
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|
1185 #ifdef FEAT_VARTABS |
|
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1186 int *vts = wp->w_buffer->b_p_vts_array; |
|
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1187 #endif |
| 7 | 1188 int ts = wp->w_buffer->b_p_ts; |
| 1189 int c; | |
| 1190 | |
| 1191 vcol = 0; | |
| 5995 | 1192 line = ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
|
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1193 if (pos->col == MAXCOL) |
|
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1194 posptr = NULL; // continue until the NUL |
|
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1195 else |
|
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1196 { |
|
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1197 colnr_T i; |
|
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1198 |
|
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1199 // In a few cases the position can be beyond the end of the line. |
|
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1200 for (i = 0; i < pos->col; ++i) |
|
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1201 if (ptr[i] == NUL) |
|
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1202 { |
|
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1203 pos->col = i; |
|
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1204 break; |
|
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1205 } |
|
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1206 posptr = ptr + pos->col; |
|
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1207 if (has_mbyte) |
|
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|
1208 // always start on the first byte |
|
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1209 posptr -= (*mb_head_off)(line, posptr); |
|
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1210 } |
| 7 | 1211 |
| 1212 /* | |
| 1213 * This function is used very often, do some speed optimizations. | |
| 5995 | 1214 * When 'list', 'linebreak', 'showbreak' and 'breakindent' are not set |
| 1215 * use a simple loop. | |
| 7 | 1216 * Also use this when 'list' is set but tabs take their normal size. |
| 1217 */ | |
|
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patch 8.2.2518: 'listchars' should be window-local
Bram Moolenaar <Bram@vim.org>
parents:
23533
diff
changeset
|
1218 if ((!wp->w_p_list || wp->w_lcs_chars.tab1 != NUL) |
| 7 | 1219 #ifdef FEAT_LINEBREAK |
|
18574
8b0114ffde2b
patch 8.1.2281: 'showbreak' cannot be set for one window
Bram Moolenaar <Bram@vim.org>
parents:
18082
diff
changeset
|
1220 && !wp->w_p_lbr && *get_showbreak_value(wp) == NUL && !wp->w_p_bri |
| 7 | 1221 #endif |
| 1222 ) | |
| 1223 { | |
| 1224 for (;;) | |
| 1225 { | |
| 1226 head = 0; | |
| 1227 c = *ptr; | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1228 // make sure we don't go past the end of the line |
| 7 | 1229 if (c == NUL) |
| 1230 { | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1231 incr = 1; // NUL at end of line only takes one column |
| 7 | 1232 break; |
| 1233 } | |
|
18757
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Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
1234 // A tab gets expanded, depending on the current column |
| 7 | 1235 if (c == TAB) |
|
14175
2ad722003b36
patch 8.1.0105: all tab stops are the same
Christian Brabandt <cb@256bit.org>
parents:
14061
diff
changeset
|
1236 #ifdef FEAT_VARTABS |
|
2ad722003b36
patch 8.1.0105: all tab stops are the same
Christian Brabandt <cb@256bit.org>
parents:
14061
diff
changeset
|
1237 incr = tabstop_padding(vcol, ts, vts); |
|
2ad722003b36
patch 8.1.0105: all tab stops are the same
Christian Brabandt <cb@256bit.org>
parents:
14061
diff
changeset
|
1238 #else |
| 7 | 1239 incr = ts - (vcol % ts); |
|
14175
2ad722003b36
patch 8.1.0105: all tab stops are the same
Christian Brabandt <cb@256bit.org>
parents:
14061
diff
changeset
|
1240 #endif |
| 7 | 1241 else |
| 1242 { | |
| 1243 if (has_mbyte) | |
| 1244 { | |
|
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c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
1245 // For utf-8, if the byte is >= 0x80, need to look at |
|
c469e1930456
patch 8.1.2368: using old C style comments
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parents:
18574
diff
changeset
|
1246 // further bytes to find the cell width. |
| 7 | 1247 if (enc_utf8 && c >= 0x80) |
| 1248 incr = utf_ptr2cells(ptr); | |
| 1249 else | |
|
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commit https://github.com/vim/vim/commit/88e8f9f14434a7cd538d0c159dc432bea869a5bd
Christian Brabandt <cb@256bit.org>
parents:
7447
diff
changeset
|
1250 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1251 |
|
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parents:
18574
diff
changeset
|
1252 // If a double-cell char doesn't fit at the end of a line |
|
c469e1930456
patch 8.1.2368: using old C style comments
Bram Moolenaar <Bram@vim.org>
parents:
18574
diff
changeset
|
1253 // it wraps to the next line, it's like this char is three |
|
c469e1930456
patch 8.1.2368: using old C style comments
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parents:
18574
diff
changeset
|
1254 // cells wide. |
| 1546 | 1255 if (incr == 2 && wp->w_p_wrap && MB_BYTE2LEN(*ptr) > 1 |
| 1256 && in_win_border(wp, vcol)) | |
| 7 | 1257 { |
| 1258 ++incr; | |
| 1259 head = 1; | |
| 1260 } | |
| 1261 } | |
| 1262 else | |
|
7697
f04e2b6feea2
commit https://github.com/vim/vim/commit/88e8f9f14434a7cd538d0c159dc432bea869a5bd
Christian Brabandt <cb@256bit.org>
parents:
7447
diff
changeset
|
1263 incr = g_chartab[c] & CT_CELL_MASK; |
| 7 | 1264 } |
| 1265 | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1266 if (posptr != NULL && ptr >= posptr) // character at pos->col |
| 7 | 1267 break; |
| 1268 | |
| 1269 vcol += incr; | |
|
11127
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patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
1270 MB_PTR_ADV(ptr); |
| 7 | 1271 } |
| 1272 } | |
| 1273 else | |
| 1274 { | |
| 1275 for (;;) | |
| 1276 { | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1277 // A tab gets expanded, depending on the current column |
| 7 | 1278 head = 0; |
| 5995 | 1279 incr = win_lbr_chartabsize(wp, line, ptr, vcol, &head); |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1280 // make sure we don't go past the end of the line |
| 7 | 1281 if (*ptr == NUL) |
| 1282 { | |
|
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diff
changeset
|
1283 incr = 1; // NUL at end of line only takes one column |
| 7 | 1284 break; |
| 1285 } | |
| 1286 | |
|
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parents:
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diff
changeset
|
1287 if (posptr != NULL && ptr >= posptr) // character at pos->col |
| 7 | 1288 break; |
| 1289 | |
| 1290 vcol += incr; | |
|
11127
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patch 8.0.0451: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
11121
diff
changeset
|
1291 MB_PTR_ADV(ptr); |
| 7 | 1292 } |
| 1293 } | |
| 1294 if (start != NULL) | |
| 1295 *start = vcol + head; | |
| 1296 if (end != NULL) | |
| 1297 *end = vcol + incr - 1; | |
| 1298 if (cursor != NULL) | |
| 1299 { | |
| 1300 if (*ptr == TAB | |
|
28773
d770568e6c98
patch 8.2.4911: the mode #defines are not clearly named
Bram Moolenaar <Bram@vim.org>
parents:
28013
diff
changeset
|
1301 && (State & MODE_NORMAL) |
| 7 | 1302 && !wp->w_p_list |
| 1303 && !virtual_active() | |
|
11121
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patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10835
diff
changeset
|
1304 && !(VIsual_active |
|
778c10516955
patch 8.0.0448: some macros are in lower case
Christian Brabandt <cb@256bit.org>
parents:
10835
diff
changeset
|
1305 && (*p_sel == 'e' || LTOREQ_POS(*pos, VIsual))) |
| 7 | 1306 ) |
|
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parents:
18574
diff
changeset
|
1307 *cursor = vcol + incr - 1; // cursor at end |
| 7 | 1308 else |
|
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parents:
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diff
changeset
|
1309 *cursor = vcol + head; // cursor at start |
| 7 | 1310 } |
| 1311 } | |
| 1312 | |
| 1313 /* | |
| 1314 * Get virtual cursor column in the current window, pretending 'list' is off. | |
| 1315 */ | |
| 1316 colnr_T | |
|
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1317 getvcol_nolist(pos_T *posp) |
| 7 | 1318 { |
| 1319 int list_save = curwin->w_p_list; | |
| 1320 colnr_T vcol; | |
| 1321 | |
| 1322 curwin->w_p_list = FALSE; | |
|
13786
0fa21ba32e21
patch 8.0.1765: CTRL-G j in Insert mode is incorrect when 'virtualedit' set
Christian Brabandt <cb@256bit.org>
parents:
13553
diff
changeset
|
1323 if (posp->coladd) |
|
0fa21ba32e21
patch 8.0.1765: CTRL-G j in Insert mode is incorrect when 'virtualedit' set
Christian Brabandt <cb@256bit.org>
parents:
13553
diff
changeset
|
1324 getvvcol(curwin, posp, NULL, &vcol, NULL); |
|
0fa21ba32e21
patch 8.0.1765: CTRL-G j in Insert mode is incorrect when 'virtualedit' set
Christian Brabandt <cb@256bit.org>
parents:
13553
diff
changeset
|
1325 else |
|
0fa21ba32e21
patch 8.0.1765: CTRL-G j in Insert mode is incorrect when 'virtualedit' set
Christian Brabandt <cb@256bit.org>
parents:
13553
diff
changeset
|
1326 getvcol(curwin, posp, NULL, &vcol, NULL); |
| 7 | 1327 curwin->w_p_list = list_save; |
| 1328 return vcol; | |
| 1329 } | |
| 1330 | |
| 1331 /* | |
| 1332 * Get virtual column in virtual mode. | |
| 1333 */ | |
| 1334 void | |
|
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diff
changeset
|
1335 getvvcol( |
|
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1336 win_T *wp, |
|
83861277e6a3
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1337 pos_T *pos, |
|
83861277e6a3
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diff
changeset
|
1338 colnr_T *start, |
|
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1339 colnr_T *cursor, |
|
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1340 colnr_T *end) |
| 7 | 1341 { |
| 1342 colnr_T col; | |
| 1343 colnr_T coladd; | |
| 1344 colnr_T endadd; | |
| 1345 char_u *ptr; | |
| 1346 | |
| 1347 if (virtual_active()) | |
| 1348 { | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1349 // For virtual mode, only want one value |
| 7 | 1350 getvcol(wp, pos, &col, NULL, NULL); |
| 1351 | |
| 1352 coladd = pos->coladd; | |
| 1353 endadd = 0; | |
|
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parents:
18574
diff
changeset
|
1354 // Cannot put the cursor on part of a wide character. |
| 7 | 1355 ptr = ml_get_buf(wp->w_buffer, pos->lnum, FALSE); |
| 1869 | 1356 if (pos->col < (colnr_T)STRLEN(ptr)) |
| 7 | 1357 { |
| 1358 int c = (*mb_ptr2char)(ptr + pos->col); | |
| 1359 | |
| 1360 if (c != TAB && vim_isprintc(c)) | |
| 1361 { | |
| 1869 | 1362 endadd = (colnr_T)(char2cells(c) - 1); |
|
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parents:
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diff
changeset
|
1363 if (coladd > endadd) // past end of line |
| 557 | 1364 endadd = 0; |
| 7 | 1365 else |
| 1366 coladd = 0; | |
| 1367 } | |
| 1368 } | |
| 1369 col += coladd; | |
| 1370 if (start != NULL) | |
| 1371 *start = col; | |
| 1372 if (cursor != NULL) | |
| 1373 *cursor = col; | |
| 1374 if (end != NULL) | |
| 1375 *end = col + endadd; | |
| 1376 } | |
| 1377 else | |
| 1378 getvcol(wp, pos, start, cursor, end); | |
| 1379 } | |
| 1380 | |
| 1381 /* | |
| 1382 * Get the leftmost and rightmost virtual column of pos1 and pos2. | |
| 1383 * Used for Visual block mode. | |
| 1384 */ | |
| 1385 void | |
|
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diff
changeset
|
1386 getvcols( |
|
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1387 win_T *wp, |
|
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
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parents:
7799
diff
changeset
|
1388 pos_T *pos1, |
|
83861277e6a3
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1389 pos_T *pos2, |
|
83861277e6a3
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Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1390 colnr_T *left, |
|
83861277e6a3
commit https://github.com/vim/vim/commit/7454a06e2642d2b37afad1c5e71cec68081ca4ff
Christian Brabandt <cb@256bit.org>
parents:
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diff
changeset
|
1391 colnr_T *right) |
| 7 | 1392 { |
| 1393 colnr_T from1, from2, to1, to2; | |
| 1394 | |
|
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Christian Brabandt <cb@256bit.org>
parents:
10835
diff
changeset
|
1395 if (LT_POSP(pos1, pos2)) |
| 7 | 1396 { |
| 1397 getvvcol(wp, pos1, &from1, NULL, &to1); | |
| 1398 getvvcol(wp, pos2, &from2, NULL, &to2); | |
| 1399 } | |
| 1400 else | |
| 1401 { | |
| 1402 getvvcol(wp, pos2, &from1, NULL, &to1); | |
| 1403 getvvcol(wp, pos1, &from2, NULL, &to2); | |
| 1404 } | |
| 1405 if (from2 < from1) | |
| 1406 *left = from2; | |
| 1407 else | |
| 1408 *left = from1; | |
| 1409 if (to2 > to1) | |
| 1410 { | |
| 1411 if (*p_sel == 'e' && from2 - 1 >= to1) | |
| 1412 *right = from2 - 1; | |
| 1413 else | |
| 1414 *right = to2; | |
| 1415 } | |
| 1416 else | |
| 1417 *right = to1; | |
| 1418 } | |
| 1419 | |
| 1420 /* | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1421 * Skip over ' ' and '\t'. |
| 7 | 1422 */ |
| 1423 char_u * | |
|
7817
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parents:
7799
diff
changeset
|
1424 skipwhite(char_u *q) |
| 7 | 1425 { |
| 1687 | 1426 char_u *p = q; |
| 1427 | |
|
26572
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1428 while (VIM_ISWHITE(*p)) |
|
9f7568104726
patch 8.2.3815: Vim9: cannot have a multi-line dict inside a block
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1429 ++p; |
|
9f7568104726
patch 8.2.3815: Vim9: cannot have a multi-line dict inside a block
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parents:
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diff
changeset
|
1430 return p; |
|
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parents:
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changeset
|
1431 } |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1432 |
|
27018
268f6a3511df
patch 8.2.4038: various code not used when features are disabled
Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1433 #if defined(FEAT_EVAL) || defined(PROTO) |
|
26572
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changeset
|
1434 /* |
|
9f7568104726
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parents:
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changeset
|
1435 * skip over ' ', '\t' and '\n'. |
|
9f7568104726
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parents:
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diff
changeset
|
1436 */ |
|
9f7568104726
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changeset
|
1437 char_u * |
|
9f7568104726
patch 8.2.3815: Vim9: cannot have a multi-line dict inside a block
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changeset
|
1438 skipwhite_and_nl(char_u *q) |
|
9f7568104726
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parents:
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changeset
|
1439 { |
|
9f7568104726
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changeset
|
1440 char_u *p = q; |
|
9f7568104726
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parents:
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diff
changeset
|
1441 |
|
9f7568104726
patch 8.2.3815: Vim9: cannot have a multi-line dict inside a block
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parents:
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changeset
|
1442 while (VIM_ISWHITE(*p) || *p == NL) |
| 7 | 1443 ++p; |
| 1444 return p; | |
| 1445 } | |
|
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changeset
|
1446 #endif |
| 7 | 1447 |
| 1448 /* | |
|
12323
4dba3e4f3b01
patch 8.0.1041: bogus characters when indenting during visual-block append
Christian Brabandt <cb@256bit.org>
parents:
11337
diff
changeset
|
1449 * getwhitecols: return the number of whitespace |
|
4dba3e4f3b01
patch 8.0.1041: bogus characters when indenting during visual-block append
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parents:
11337
diff
changeset
|
1450 * columns (bytes) at the start of a given line |
|
4dba3e4f3b01
patch 8.0.1041: bogus characters when indenting during visual-block append
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parents:
11337
diff
changeset
|
1451 */ |
|
4dba3e4f3b01
patch 8.0.1041: bogus characters when indenting during visual-block append
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diff
changeset
|
1452 int |
|
4dba3e4f3b01
patch 8.0.1041: bogus characters when indenting during visual-block append
Christian Brabandt <cb@256bit.org>
parents:
11337
diff
changeset
|
1453 getwhitecols_curline() |
|
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1454 { |
|
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1455 return getwhitecols(ml_get_curline()); |
|
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1456 } |
|
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|
1457 |
|
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|
1458 int |
|
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|
1459 getwhitecols(char_u *p) |
|
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1460 { |
|
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1461 return skipwhite(p) - p; |
|
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|
1462 } |
|
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|
1463 |
|
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|
1464 /* |
| 293 | 1465 * skip over digits |
| 7 | 1466 */ |
| 1467 char_u * | |
|
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|
1468 skipdigits(char_u *q) |
| 7 | 1469 { |
| 1687 | 1470 char_u *p = q; |
| 1471 | |
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|
1472 while (VIM_ISDIGIT(*p)) // skip to next non-digit |
| 7 | 1473 ++p; |
| 1474 return p; | |
| 1475 } | |
| 1476 | |
| 741 | 1477 #if defined(FEAT_SYN_HL) || defined(FEAT_SPELL) || defined(PROTO) |
| 301 | 1478 /* |
|
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1479 * skip over binary digits |
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1480 */ |
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|
1481 char_u * |
|
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1482 skipbin(char_u *q) |
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1483 { |
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|
1484 char_u *p = q; |
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1485 |
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1486 while (vim_isbdigit(*p)) // skip to next non-digit |
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1487 ++p; |
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1488 return p; |
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1489 } |
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|
1490 |
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1491 /* |
| 301 | 1492 * skip over digits and hex characters |
| 1493 */ | |
| 1494 char_u * | |
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1495 skiphex(char_u *q) |
| 301 | 1496 { |
| 1687 | 1497 char_u *p = q; |
| 1498 | |
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1499 while (vim_isxdigit(*p)) // skip to next non-digit |
| 301 | 1500 ++p; |
| 1501 return p; | |
| 1502 } | |
| 1503 #endif | |
| 1504 | |
| 293 | 1505 /* |
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1506 * skip to bin digit (or NUL after the string) |
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1507 */ |
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1508 char_u * |
|
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1509 skiptobin(char_u *q) |
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1510 { |
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1511 char_u *p = q; |
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1512 |
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1513 while (*p != NUL && !vim_isbdigit(*p)) // skip to next digit |
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1514 ++p; |
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1515 return p; |
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1516 } |
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1517 |
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1518 /* |
| 293 | 1519 * skip to digit (or NUL after the string) |
| 1520 */ | |
| 1521 char_u * | |
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1522 skiptodigit(char_u *q) |
| 293 | 1523 { |
| 1687 | 1524 char_u *p = q; |
| 1525 | |
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1526 while (*p != NUL && !VIM_ISDIGIT(*p)) // skip to next digit |
| 293 | 1527 ++p; |
| 1528 return p; | |
| 1529 } | |
| 1530 | |
| 1531 /* | |
| 1532 * skip to hex character (or NUL after the string) | |
| 1533 */ | |
| 1534 char_u * | |
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1535 skiptohex(char_u *q) |
| 293 | 1536 { |
| 1687 | 1537 char_u *p = q; |
| 1538 | |
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1539 while (*p != NUL && !vim_isxdigit(*p)) // skip to next digit |
| 293 | 1540 ++p; |
| 1541 return p; | |
| 1542 } | |
| 1543 | |
| 7 | 1544 /* |
| 1545 * Variant of isdigit() that can handle characters > 0x100. | |
| 1546 * We don't use isdigit() here, because on some systems it also considers | |
| 1547 * superscript 1 to be a digit. | |
| 1548 * Use the VIM_ISDIGIT() macro for simple arguments. | |
| 1549 */ | |
| 1550 int | |
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1551 vim_isdigit(int c) |
| 7 | 1552 { |
| 1553 return (c >= '0' && c <= '9'); | |
| 1554 } | |
| 1555 | |
| 1556 /* | |
| 1557 * Variant of isxdigit() that can handle characters > 0x100. | |
| 1558 * We don't use isxdigit() here, because on some systems it also considers | |
| 1559 * superscript 1 to be a digit. | |
| 1560 */ | |
| 1561 int | |
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|
1562 vim_isxdigit(int c) |
| 7 | 1563 { |
| 1564 return (c >= '0' && c <= '9') | |
| 1565 || (c >= 'a' && c <= 'f') | |
| 1566 || (c >= 'A' && c <= 'F'); | |
| 1567 } | |
| 1568 | |
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1569 /* |
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1570 * Corollary of vim_isdigit and vim_isxdigit() that can handle |
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1571 * characters > 0x100. |
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1572 */ |
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1573 int |
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1574 vim_isbdigit(int c) |
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1575 { |
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1576 return (c == '0' || c == '1'); |
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1577 } |
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1578 |
|
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1579 static int |
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|
1580 vim_isodigit(int c) |
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1581 { |
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1582 return (c >= '0' && c <= '7'); |
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1583 } |
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1584 |
| 492 | 1585 /* |
| 1586 * Vim's own character class functions. These exist because many library | |
| 1587 * islower()/toupper() etc. do not work properly: they crash when used with | |
| 1588 * invalid values or can't handle latin1 when the locale is C. | |
| 1589 * Speed is most important here. | |
| 1590 */ | |
| 1591 #define LATIN1LOWER 'l' | |
| 1592 #define LATIN1UPPER 'U' | |
| 1593 | |
| 497 | 1594 static char_u latin1flags[257] = " UUUUUUUUUUUUUUUUUUUUUUUUUU llllllllllllllllllllllllll UUUUUUUUUUUUUUUUUUUUUUU UUUUUUUllllllllllllllllllllllll llllllll"; |
| 3533 | 1595 static char_u latin1upper[257] = " !\"#$%&'()*+,-./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\\]^_`ABCDEFGHIJKLMNOPQRSTUVWXYZ{|}~\x7f\x80\x81\x82\x83\x84\x85\x86\x87\x88\x89\x8a\x8b\x8c\x8d\x8e\x8f\x90\x91\x92\x93\x94\x95\x96\x97\x98\x99\x9a\x9b\x9c\x9d\x9e\x9f\xa0\xa1\xa2\xa3\xa4\xa5\xa6\xa7\xa8\xa9\xaa\xab\xac\xad\xae\xaf\xb0\xb1\xb2\xb3\xb4\xb5\xb6\xb7\xb8\xb9\xba\xbb\xbc\xbd\xbe\xbf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd7\xd8\xd9\xda\xdb\xdc\xdd\xde\xdf\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xf7\xd8\xd9\xda\xdb\xdc\xdd\xde\xff"; |
| 1596 static char_u latin1lower[257] = " !\"#$%&'()*+,-./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 | 1597 |
| 1598 int | |
|
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1599 vim_islower(int c) |
| 492 | 1600 { |
| 1601 if (c <= '@') | |
| 1602 return FALSE; | |
| 1603 if (c >= 0x80) | |
| 1604 { | |
| 1605 if (enc_utf8) | |
| 1606 return utf_islower(c); | |
| 1607 if (c >= 0x100) | |
| 1608 { | |
| 1609 #ifdef HAVE_ISWLOWER | |
| 1610 if (has_mbyte) | |
| 1611 return iswlower(c); | |
| 1612 #endif | |
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1613 // islower() can't handle these chars and may crash |
| 492 | 1614 return FALSE; |
| 1615 } | |
| 1616 if (enc_latin1like) | |
| 1617 return (latin1flags[c] & LATIN1LOWER) == LATIN1LOWER; | |
| 1618 } | |
| 1619 return islower(c); | |
| 1620 } | |
| 1621 | |
| 1622 int | |
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1623 vim_isupper(int c) |
| 492 | 1624 { |
| 1625 if (c <= '@') | |
| 1626 return FALSE; | |
| 1627 if (c >= 0x80) | |
| 1628 { | |
| 1629 if (enc_utf8) | |
| 1630 return utf_isupper(c); | |
| 1631 if (c >= 0x100) | |
| 1632 { | |
| 1633 #ifdef HAVE_ISWUPPER | |
| 1634 if (has_mbyte) | |
| 1635 return iswupper(c); | |
| 1636 #endif | |
|
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parents:
18574
diff
changeset
|
1637 // islower() can't handle these chars and may crash |
| 492 | 1638 return FALSE; |
| 1639 } | |
| 1640 if (enc_latin1like) | |
| 1641 return (latin1flags[c] & LATIN1UPPER) == LATIN1UPPER; | |
| 1642 } | |
| 1643 return isupper(c); | |
| 1644 } | |
| 1645 | |
| 1646 int | |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1647 vim_isalpha(int c) |
|
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patch 8.2.4418: crash when using special multi-byte character
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parents:
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diff
changeset
|
1648 { |
|
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patch 8.2.4418: crash when using special multi-byte character
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diff
changeset
|
1649 return vim_islower(c) || vim_isupper(c); |
|
bfce04a99561
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1650 } |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1651 |
|
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Bram Moolenaar <Bram@vim.org>
parents:
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diff
changeset
|
1652 int |
|
7817
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1653 vim_toupper(int c) |
| 492 | 1654 { |
| 1655 if (c <= '@') | |
| 1656 return c; | |
|
11333
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Christian Brabandt <cb@256bit.org>
parents:
11133
diff
changeset
|
1657 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
| 492 | 1658 { |
| 1659 if (enc_utf8) | |
| 1660 return utf_toupper(c); | |
| 1661 if (c >= 0x100) | |
| 1662 { | |
| 1663 #ifdef HAVE_TOWUPPER | |
| 1664 if (has_mbyte) | |
| 1665 return towupper(c); | |
| 1666 #endif | |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1667 // toupper() can't handle these chars and may crash |
| 492 | 1668 return c; |
| 1669 } | |
| 1670 if (enc_latin1like) | |
| 1671 return latin1upper[c]; | |
| 1672 } | |
|
11337
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Christian Brabandt <cb@256bit.org>
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11333
diff
changeset
|
1673 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
|
f0fbebf19b80
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Christian Brabandt <cb@256bit.org>
parents:
11333
diff
changeset
|
1674 return TOUPPER_ASC(c); |
| 492 | 1675 return TOUPPER_LOC(c); |
| 1676 } | |
| 1677 | |
| 1678 int | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1679 vim_tolower(int c) |
| 492 | 1680 { |
| 1681 if (c <= '@') | |
| 1682 return c; | |
|
11333
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1683 if (c >= 0x80 || !(cmp_flags & CMP_KEEPASCII)) |
| 492 | 1684 { |
| 1685 if (enc_utf8) | |
| 1686 return utf_tolower(c); | |
| 1687 if (c >= 0x100) | |
| 1688 { | |
| 1689 #ifdef HAVE_TOWLOWER | |
| 1690 if (has_mbyte) | |
| 1691 return towlower(c); | |
| 1692 #endif | |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1693 // tolower() can't handle these chars and may crash |
| 492 | 1694 return c; |
| 1695 } | |
| 1696 if (enc_latin1like) | |
| 1697 return latin1lower[c]; | |
| 1698 } | |
|
11337
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Christian Brabandt <cb@256bit.org>
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diff
changeset
|
1699 if (c < 0x80 && (cmp_flags & CMP_KEEPASCII)) |
|
f0fbebf19b80
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Christian Brabandt <cb@256bit.org>
parents:
11333
diff
changeset
|
1700 return TOLOWER_ASC(c); |
| 492 | 1701 return TOLOWER_LOC(c); |
| 1702 } | |
| 1703 | |
| 7 | 1704 /* |
| 1705 * skiptowhite: skip over text until ' ' or '\t' or NUL. | |
| 1706 */ | |
| 1707 char_u * | |
|
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Christian Brabandt <cb@256bit.org>
parents:
7799
diff
changeset
|
1708 skiptowhite(char_u *p) |
| 7 | 1709 { |
| 1710 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1711 ++p; | |
| 1712 return p; | |
| 1713 } | |
| 1714 | |
| 1715 /* | |
| 1716 * skiptowhite_esc: Like skiptowhite(), but also skip escaped chars | |
| 1717 */ | |
| 1718 char_u * | |
|
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Christian Brabandt <cb@256bit.org>
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7799
diff
changeset
|
1719 skiptowhite_esc(char_u *p) |
| 7 | 1720 { |
| 1721 while (*p != ' ' && *p != '\t' && *p != NUL) | |
| 1722 { | |
| 1723 if ((*p == '\\' || *p == Ctrl_V) && *(p + 1) != NUL) | |
| 1724 ++p; | |
| 1725 ++p; | |
| 1726 } | |
| 1727 return p; | |
| 1728 } | |
| 1729 | |
| 1730 /* | |
|
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1731 * Get a number from a string and skip over it. |
| 7 | 1732 * Note: the argument is a pointer to a char_u pointer! |
| 1733 */ | |
| 1734 long | |
|
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Christian Brabandt <cb@256bit.org>
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7799
diff
changeset
|
1735 getdigits(char_u **pp) |
| 7 | 1736 { |
| 1737 char_u *p; | |
| 1738 long retval; | |
| 1739 | |
| 1740 p = *pp; | |
| 1741 retval = atol((char *)p); | |
|
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changeset
|
1742 if (*p == '-') // skip negative sign |
| 7 | 1743 ++p; |
|
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diff
changeset
|
1744 p = skipdigits(p); // skip to next non-digit |
| 7 | 1745 *pp = p; |
| 1746 return retval; | |
| 1747 } | |
| 1748 | |
| 1749 /* | |
|
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|
1750 * Like getdigits() but allow for embedded single quotes. |
|
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|
1751 */ |
|
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|
1752 long |
|
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diff
changeset
|
1753 getdigits_quoted(char_u **pp) |
|
227543e4181f
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changeset
|
1754 { |
|
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diff
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|
1755 char_u *p = *pp; |
|
227543e4181f
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diff
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|
1756 long retval = 0; |
|
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|
1757 |
|
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|
1758 if (*p == '-') |
|
227543e4181f
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1759 ++p; |
|
227543e4181f
patch 8.2.3694: cannot use quotes in the count of an Ex command
Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1760 while (VIM_ISDIGIT(*p)) |
|
227543e4181f
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Bram Moolenaar <Bram@vim.org>
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|
1761 { |
|
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Bram Moolenaar <Bram@vim.org>
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changeset
|
1762 if (retval >= LONG_MAX / 10 - 10) |
|
227543e4181f
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diff
changeset
|
1763 retval = LONG_MAX; |
|
227543e4181f
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diff
changeset
|
1764 else |
|
227543e4181f
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diff
changeset
|
1765 retval = retval * 10 - '0' + *p; |
|
227543e4181f
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changeset
|
1766 ++p; |
|
227543e4181f
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1767 if (in_vim9script() && *p == '\'' && VIM_ISDIGIT(p[1])) |
|
227543e4181f
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Bram Moolenaar <Bram@vim.org>
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diff
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|
1768 ++p; |
|
227543e4181f
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|
1769 } |
|
227543e4181f
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1770 if (**pp == '-') |
|
227543e4181f
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Bram Moolenaar <Bram@vim.org>
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|
1771 { |
|
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Bram Moolenaar <Bram@vim.org>
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diff
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|
1772 if (retval == LONG_MAX) |
|
227543e4181f
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1773 retval = LONG_MIN; |
|
227543e4181f
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Bram Moolenaar <Bram@vim.org>
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diff
changeset
|
1774 else |
|
227543e4181f
patch 8.2.3694: cannot use quotes in the count of an Ex command
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diff
changeset
|
1775 retval = -retval; |
|
227543e4181f
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parents:
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diff
changeset
|
1776 } |
|
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|
1777 *pp = p; |
|
227543e4181f
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changeset
|
1778 return retval; |
|
227543e4181f
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|
1779 } |
|
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|
1780 |
|
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changeset
|
1781 /* |
| 7 | 1782 * Return TRUE if "lbuf" is empty or only contains blanks. |
| 1783 */ | |
| 1784 int | |
|
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diff
changeset
|
1785 vim_isblankline(char_u *lbuf) |
| 7 | 1786 { |
| 1787 char_u *p; | |
| 1788 | |
| 1789 p = skipwhite(lbuf); | |
| 1790 return (*p == NUL || *p == '\r' || *p == '\n'); | |
| 1791 } | |
| 1792 | |
| 1793 /* | |
| 1794 * Convert a string into a long and/or unsigned long, taking care of | |
|
7447
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diff
changeset
|
1795 * hexadecimal, octal, and binary numbers. Accepts a '-' sign. |
|
ad432f8f68fb
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diff
changeset
|
1796 * If "prep" is not NULL, returns a flag to indicate the type of the number: |
| 7 | 1797 * 0 decimal |
| 1798 * '0' octal | |
|
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|
1799 * 'O' octal |
|
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|
1800 * 'o' octal |
|
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diff
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|
1801 * 'B' bin |
|
ad432f8f68fb
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changeset
|
1802 * 'b' bin |
| 7 | 1803 * 'X' hex |
| 1804 * 'x' hex | |
| 1805 * If "len" is not NULL, the length of the number in characters is returned. | |
| 1806 * If "nptr" is not NULL, the signed result is returned in it. | |
| 1807 * If "unptr" is not NULL, the unsigned result is returned in it. | |
|
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|
1808 * If "what" contains STR2NR_BIN recognize binary numbers |
|
ad432f8f68fb
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diff
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|
1809 * If "what" contains STR2NR_OCT recognize octal numbers |
|
ad432f8f68fb
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|
1810 * If "what" contains STR2NR_HEX recognize hex numbers |
|
ad432f8f68fb
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|
1811 * If "what" contains STR2NR_FORCE always assume bin/oct/hex. |
|
18082
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changeset
|
1812 * If "what" contains STR2NR_QUOTE ignore embedded single quotes |
|
12704
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12702
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changeset
|
1813 * If maxlen > 0, check at a maximum maxlen chars. |
|
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|
1814 * If strict is TRUE, check the number strictly. return *len = 0 if fail. |
| 7 | 1815 */ |
| 1816 void | |
|
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changeset
|
1817 vim_str2nr( |
|
83861277e6a3
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changeset
|
1818 char_u *start, |
|
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patch 8.1.1355: obvious mistakes are accepted as valid expressions
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changeset
|
1819 int *prep, // return: type of number 0 = decimal, 'x' |
|
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changeset
|
1820 // or 'X' is hex, '0', 'o' or 'O' is octal, |
|
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changeset
|
1821 // 'b' or 'B' is bin |
|
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changeset
|
1822 int *len, // return: detected length of number |
|
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changeset
|
1823 int what, // what numbers to recognize |
|
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patch 8.1.1355: obvious mistakes are accepted as valid expressions
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changeset
|
1824 varnumber_T *nptr, // return: signed result |
|
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changeset
|
1825 uvarnumber_T *unptr, // return: unsigned result |
|
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changeset
|
1826 int maxlen, // max length of string to check |
|
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parents:
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diff
changeset
|
1827 int strict) // check strictly |
| 7 | 1828 { |
| 1829 char_u *ptr = start; | |
|
16706
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parents:
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diff
changeset
|
1830 int pre = 0; // default is decimal |
| 7 | 1831 int negative = FALSE; |
|
9389
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diff
changeset
|
1832 uvarnumber_T un = 0; |
| 39 | 1833 int n; |
| 7 | 1834 |
|
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|
1835 if (len != NULL) |
|
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diff
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|
1836 *len = 0; |
|
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diff
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|
1837 |
| 7 | 1838 if (ptr[0] == '-') |
| 1839 { | |
| 1840 negative = TRUE; | |
| 1841 ++ptr; | |
| 1842 } | |
| 1843 | |
|
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diff
changeset
|
1844 // Recognize hex, octal, and bin. |
| 6927 | 1845 if (ptr[0] == '0' && ptr[1] != '8' && ptr[1] != '9' |
| 1846 && (maxlen == 0 || maxlen > 1)) | |
| 7 | 1847 { |
|
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diff
changeset
|
1848 pre = ptr[1]; |
|
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diff
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|
1849 if ((what & STR2NR_HEX) |
|
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diff
changeset
|
1850 && (pre == 'X' || pre == 'x') && vim_isxdigit(ptr[2]) |
|
ad432f8f68fb
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|
1851 && (maxlen == 0 || maxlen > 2)) |
|
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diff
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|
1852 // hexadecimal |
|
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diff
changeset
|
1853 ptr += 2; |
|
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diff
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|
1854 else if ((what & STR2NR_BIN) |
|
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|
1855 && (pre == 'B' || pre == 'b') && vim_isbdigit(ptr[2]) |
|
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|
1856 && (maxlen == 0 || maxlen > 2)) |
|
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diff
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|
1857 // binary |
|
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diff
changeset
|
1858 ptr += 2; |
|
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patch 8.2.0886: cannot use octal numbers in scriptversion 4
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diff
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|
1859 else if ((what & STR2NR_OOCT) |
|
23533
ee43d943c3bb
patch 8.2.2309: 0o777 not recognized as octal
Bram Moolenaar <Bram@vim.org>
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diff
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|
1860 && (pre == 'O' || pre == 'o') && vim_isodigit(ptr[2]) |
|
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|
1861 && (maxlen == 0 || maxlen > 2)) |
|
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|
1862 // octal with prefix "0o" |
|
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|
1863 ptr += 2; |
| 7 | 1864 else |
| 1865 { | |
|
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|
1866 // decimal or octal, default is decimal |
|
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|
1867 pre = 0; |
|
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|
1868 if (what & STR2NR_OCT) |
| 39 | 1869 { |
|
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|
1870 // Don't interpret "0", "08" or "0129" as octal. |
|
12704
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patch 8.0.1230: CTRL-A in Visual mode uses character after selection
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diff
changeset
|
1871 for (n = 1; n != maxlen && VIM_ISDIGIT(ptr[n]); ++n) |
| 39 | 1872 { |
| 1873 if (ptr[n] > '7') | |
| 1874 { | |
|
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|
1875 pre = 0; // can't be octal |
| 39 | 1876 break; |
| 1877 } | |
|
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|
1878 pre = '0'; // assume octal |
| 39 | 1879 } |
| 1880 } | |
| 7 | 1881 } |
| 1882 } | |
| 1883 | |
|
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|
1884 // Do the conversion manually to avoid sscanf() quirks. |
| 6927 | 1885 n = 1; |
|
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|
1886 if (pre == 'B' || pre == 'b' |
|
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|
1887 || ((what & STR2NR_BIN) && (what & STR2NR_FORCE))) |
|
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|
1888 { |
|
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diff
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|
1889 // bin |
|
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diff
changeset
|
1890 if (pre != 0) |
|
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diff
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|
1891 n += 2; // skip over "0b" |
|
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|
1892 while ('0' <= *ptr && *ptr <= '1') |
|
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|
1893 { |
|
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|
1894 // avoid ubsan error for overflow |
|
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|
1895 if (un <= UVARNUM_MAX / 2) |
|
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|
1896 un = 2 * un + (uvarnumber_T)(*ptr - '0'); |
|
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|
1897 else |
|
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|
1898 un = UVARNUM_MAX; |
|
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|
1899 ++ptr; |
|
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1900 if (n++ == maxlen) |
|
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|
1901 break; |
|
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1902 if ((what & STR2NR_QUOTE) && *ptr == '\'' |
|
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|
1903 && '0' <= ptr[1] && ptr[1] <= '1') |
|
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1904 { |
|
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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 } |
|
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1911 else if (pre == 'O' || pre == 'o' || |
|
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1912 pre == '0' || ((what & STR2NR_OCT) && (what & STR2NR_FORCE))) |
| 7 | 1913 { |
|
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|
1914 // octal |
|
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|
1915 if (pre != 0 && pre != '0') |
|
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|
1916 n += 2; // skip over "0o" |
| 293 | 1917 while ('0' <= *ptr && *ptr <= '7') |
| 7 | 1918 { |
|
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1919 // avoid ubsan error for overflow |
|
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1920 if (un <= UVARNUM_MAX / 8) |
|
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1921 un = 8 * un + (uvarnumber_T)(*ptr - '0'); |
|
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1922 else |
|
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|
1923 un = UVARNUM_MAX; |
| 293 | 1924 ++ptr; |
| 6927 | 1925 if (n++ == maxlen) |
| 1926 break; | |
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1927 if ((what & STR2NR_QUOTE) && *ptr == '\'' |
|
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1928 && '0' <= ptr[1] && ptr[1] <= '7') |
|
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1929 { |
|
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1930 ++ptr; |
|
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1931 if (n++ == maxlen) |
|
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1932 break; |
|
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1933 } |
| 7 | 1934 } |
| 293 | 1935 } |
|
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1936 else if (pre != 0 || ((what & STR2NR_HEX) && (what & STR2NR_FORCE))) |
| 293 | 1937 { |
|
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|
1938 // hex |
|
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1939 if (pre != 0) |
|
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1940 n += 2; // skip over "0x" |
| 293 | 1941 while (vim_isxdigit(*ptr)) |
| 7 | 1942 { |
|
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1943 // avoid ubsan error for overflow |
|
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1944 if (un <= UVARNUM_MAX / 16) |
|
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|
1945 un = 16 * un + (uvarnumber_T)hex2nr(*ptr); |
|
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|
1946 else |
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|
1947 un = UVARNUM_MAX; |
| 293 | 1948 ++ptr; |
| 6927 | 1949 if (n++ == maxlen) |
| 1950 break; | |
|
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1951 if ((what & STR2NR_QUOTE) && *ptr == '\'' && vim_isxdigit(ptr[1])) |
|
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1952 { |
|
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1953 ++ptr; |
|
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1954 if (n++ == maxlen) |
|
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|
1955 break; |
|
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|
1956 } |
| 7 | 1957 } |
| 1958 } | |
| 1959 else | |
| 1960 { | |
|
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|
1961 // decimal |
| 7 | 1962 while (VIM_ISDIGIT(*ptr)) |
| 1963 { | |
|
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|
1964 uvarnumber_T digit = (uvarnumber_T)(*ptr - '0'); |
|
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diff
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|
1965 |
|
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|
1966 // avoid ubsan error for overflow |
|
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1967 if (un < UVARNUM_MAX / 10 |
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1968 || (un == UVARNUM_MAX / 10 && digit <= UVARNUM_MAX % 10)) |
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1969 un = 10 * un + digit; |
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1970 else |
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1971 un = UVARNUM_MAX; |
| 7 | 1972 ++ptr; |
| 6927 | 1973 if (n++ == maxlen) |
| 1974 break; | |
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1975 if ((what & STR2NR_QUOTE) && *ptr == '\'' && VIM_ISDIGIT(ptr[1])) |
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1976 { |
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1977 ++ptr; |
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1978 if (n++ == maxlen) |
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1979 break; |
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1980 } |
| 7 | 1981 } |
| 1982 } | |
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1983 |
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1984 // Check for an alphanumeric character immediately following, that is |
|
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1985 // most likely a typo. |
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1986 if (strict && n - 1 != maxlen && ASCII_ISALNUM(*ptr)) |
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1987 return; |
| 7 | 1988 |
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1989 if (prep != NULL) |
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1990 *prep = pre; |
| 7 | 1991 if (len != NULL) |
| 1992 *len = (int)(ptr - start); | |
| 1993 if (nptr != NULL) | |
| 16 | 1994 { |
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1995 if (negative) // account for leading '-' for decimal numbers |
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1996 { |
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1997 // avoid ubsan error for overflow |
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1998 if (un > VARNUM_MAX) |
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1999 *nptr = VARNUM_MIN; |
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2000 else |
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2001 *nptr = -(varnumber_T)un; |
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2002 } |
| 16 | 2003 else |
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2004 { |
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2005 // prevent a larg unsigned number to become negative |
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2006 if (un > VARNUM_MAX) |
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2007 un = VARNUM_MAX; |
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2008 *nptr = (varnumber_T)un; |
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2009 } |
| 16 | 2010 } |
| 7 | 2011 if (unptr != NULL) |
| 2012 *unptr = un; | |
| 2013 } | |
| 2014 | |
| 2015 /* | |
| 2016 * Return the value of a single hex character. | |
| 2017 * Only valid when the argument is '0' - '9', 'A' - 'F' or 'a' - 'f'. | |
| 2018 */ | |
| 2019 int | |
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2020 hex2nr(int c) |
| 7 | 2021 { |
| 2022 if (c >= 'a' && c <= 'f') | |
| 2023 return c - 'a' + 10; | |
| 2024 if (c >= 'A' && c <= 'F') | |
| 2025 return c - 'A' + 10; | |
| 2026 return c - '0'; | |
| 2027 } | |
| 2028 | |
| 2029 /* | |
| 2030 * Convert two hex characters to a byte. | |
| 2031 * Return -1 if one of the characters is not hex. | |
| 2032 */ | |
| 2033 int | |
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2034 hexhex2nr(char_u *p) |
| 7 | 2035 { |
| 2036 if (!vim_isxdigit(p[0]) || !vim_isxdigit(p[1])) | |
| 2037 return -1; | |
| 2038 return (hex2nr(p[0]) << 4) + hex2nr(p[1]); | |
| 2039 } | |
| 2040 | |
| 2041 /* | |
| 2042 * Return TRUE if "str" starts with a backslash that should be removed. | |
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2043 * For MS-DOS, MSWIN and OS/2 this is only done when the character after the |
| 7 | 2044 * backslash is not a normal file name character. |
| 2045 * '$' is a valid file name character, we don't remove the backslash before | |
| 2046 * it. This means it is not possible to use an environment variable after a | |
| 2047 * backslash. "C:\$VIM\doc" is taken literally, only "$VIM\doc" works. | |
| 2048 * Although "\ name" is valid, the backslash in "Program\ files" must be | |
| 2049 * removed. Assume a file name doesn't start with a space. | |
| 2050 * For multi-byte names, never remove a backslash before a non-ascii | |
| 2051 * character, assume that all multi-byte characters are valid file name | |
| 2052 * characters. | |
| 2053 */ | |
| 2054 int | |
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2055 rem_backslash(char_u *str) |
| 7 | 2056 { |
| 2057 #ifdef BACKSLASH_IN_FILENAME | |
| 2058 return (str[0] == '\\' | |
| 2059 && str[1] < 0x80 | |
| 2060 && (str[1] == ' ' | |
| 2061 || (str[1] != NUL | |
| 2062 && str[1] != '*' | |
| 2063 && str[1] != '?' | |
| 2064 && !vim_isfilec(str[1])))); | |
| 2065 #else | |
| 2066 return (str[0] == '\\' && str[1] != NUL); | |
| 2067 #endif | |
| 2068 } | |
| 2069 | |
| 2070 /* | |
| 2071 * Halve the number of backslashes in a file name argument. | |
| 2072 * For MS-DOS we only do this if the character after the backslash | |
| 2073 * is not a normal file character. | |
| 2074 */ | |
| 2075 void | |
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2076 backslash_halve(char_u *p) |
| 7 | 2077 { |
| 2078 for ( ; *p; ++p) | |
| 2079 if (rem_backslash(p)) | |
| 1621 | 2080 STRMOVE(p, p + 1); |
| 7 | 2081 } |
| 2082 | |
| 2083 /* | |
| 2084 * backslash_halve() plus save the result in allocated memory. | |
|
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2085 * However, returns "p" when out of memory. |
| 7 | 2086 */ |
| 2087 char_u * | |
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2088 backslash_halve_save(char_u *p) |
| 7 | 2089 { |
| 2090 char_u *res; | |
| 2091 | |
| 2092 res = vim_strsave(p); | |
| 2093 if (res == NULL) | |
| 2094 return p; | |
| 2095 backslash_halve(res); | |
| 2096 return res; | |
| 2097 } |