Mercurial > vim
annotate src/os_mac_conv.c @ 19002:b2ff693b6e4b
Added tag v8.2.0061 for changeset 1ebfb46710cd7d81faca74ffd5d47fdaaad70365
| author | Bram Moolenaar <Bram@vim.org> |
|---|---|
| date | Mon, 30 Dec 2019 19:30:04 +0100 |
| parents | 44b855153d8e |
| children | 35921b7fc07a |
| rev | line source |
|---|---|
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commit https://github.com/vim/vim/commit/edf3f97ae2af024708ebb4ac614227327033ca47
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
| 18 | 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 * os_mac_conv.c: Code specifically for Mac string conversions. | |
| 11 * | |
| 12 * This code has been put in a separate file to avoid the conflicts that are | |
| 13 * caused by including both the X11 and Carbon header files. | |
| 14 */ | |
| 15 | |
| 16 #define NO_X11_INCLUDES | |
| 2891 | 17 |
| 18 | 18 #include "vim.h" |
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19 |
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20 #if !defined(FEAT_GUI_MAC) && !defined(PROTO) |
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21 # include <CoreServices/CoreServices.h> |
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22 #endif |
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23 |
| 18 | 24 |
| 766 | 25 #if defined(MACOS_CONVERT) || defined(PROTO) |
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26 |
| 766 | 27 # ifdef PROTO |
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28 // A few dummy types to be able to generate function prototypes. |
| 766 | 29 typedef int UniChar; |
| 30 typedef int *TECObjectRef; | |
| 31 typedef int CFStringRef; | |
| 32 # endif | |
| 33 | |
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34 static char_u *mac_utf16_to_utf8(UniChar *from, size_t fromLen, size_t *actualLen); |
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35 static UniChar *mac_utf8_to_utf16(char_u *from, size_t fromLen, size_t *actualLen); |
| 168 | 36 |
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37 // Converter for composing decomposed HFS+ file paths |
| 168 | 38 static TECObjectRef gPathConverter; |
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39 // Converter used by mac_utf16_to_utf8 |
| 168 | 40 static TECObjectRef gUTF16ToUTF8Converter; |
| 41 | |
| 18 | 42 /* |
| 43 * A Mac version of string_convert_ext() for special cases. | |
| 44 */ | |
| 45 char_u * | |
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46 mac_string_convert( |
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47 char_u *ptr, |
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48 int len, |
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49 int *lenp, |
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50 int fail_on_error, |
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51 int from_enc, |
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52 int to_enc, |
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53 int *unconvlenp) |
| 18 | 54 { |
| 55 char_u *retval, *d; | |
| 56 CFStringRef cfstr; | |
| 57 int buflen, in, out, l, i; | |
| 58 CFStringEncoding from; | |
| 59 CFStringEncoding to; | |
| 60 | |
| 61 switch (from_enc) | |
| 62 { | |
| 63 case 'l': from = kCFStringEncodingISOLatin1; break; | |
| 64 case 'm': from = kCFStringEncodingMacRoman; break; | |
| 65 case 'u': from = kCFStringEncodingUTF8; break; | |
| 66 default: return NULL; | |
| 67 } | |
| 68 switch (to_enc) | |
| 69 { | |
| 70 case 'l': to = kCFStringEncodingISOLatin1; break; | |
| 71 case 'm': to = kCFStringEncodingMacRoman; break; | |
| 72 case 'u': to = kCFStringEncodingUTF8; break; | |
| 73 default: return NULL; | |
| 74 } | |
| 75 | |
| 76 if (unconvlenp != NULL) | |
| 77 *unconvlenp = 0; | |
| 78 cfstr = CFStringCreateWithBytes(NULL, ptr, len, from, 0); | |
| 79 | |
| 3143 | 80 if (cfstr == NULL) |
| 168 | 81 fprintf(stderr, "Encoding failed\n"); |
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82 // When conversion failed, try excluding bytes from the end, helps when |
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83 // there is an incomplete byte sequence. Only do up to 6 bytes to avoid |
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84 // looping a long time when there really is something unconvertible. |
| 18 | 85 while (cfstr == NULL && unconvlenp != NULL && len > 1 && *unconvlenp < 6) |
| 86 { | |
| 87 --len; | |
| 88 ++*unconvlenp; | |
| 89 cfstr = CFStringCreateWithBytes(NULL, ptr, len, from, 0); | |
| 90 } | |
| 91 if (cfstr == NULL) | |
| 92 return NULL; | |
| 168 | 93 |
| 18 | 94 if (to == kCFStringEncodingUTF8) |
| 95 buflen = len * 6 + 1; | |
| 96 else | |
| 97 buflen = len + 1; | |
| 98 retval = alloc(buflen); | |
| 99 if (retval == NULL) | |
| 100 { | |
| 101 CFRelease(cfstr); | |
| 102 return NULL; | |
| 103 } | |
| 168 | 104 |
| 105 #if 0 | |
| 106 CFRange convertRange = CFRangeMake(0, CFStringGetLength(cfstr)); | |
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107 // Determine output buffer size |
| 168 | 108 CFStringGetBytes(cfstr, convertRange, to, NULL, FALSE, NULL, 0, (CFIndex *)&buflen); |
| 109 retval = (buflen > 0) ? alloc(buflen) : NULL; | |
| 110 if (retval == NULL) { | |
| 111 CFRelease(cfstr); | |
| 112 return NULL; | |
| 113 } | |
| 114 | |
| 115 if (lenp) | |
| 116 *lenp = buflen / sizeof(char_u); | |
| 117 | |
| 118 if (!CFStringGetBytes(cfstr, convertRange, to, NULL, FALSE, retval, buflen, NULL)) | |
| 119 #endif | |
| 501 | 120 if (!CFStringGetCString(cfstr, (char *)retval, buflen, to)) |
| 18 | 121 { |
| 122 CFRelease(cfstr); | |
| 123 if (fail_on_error) | |
| 124 { | |
| 125 vim_free(retval); | |
| 126 return NULL; | |
| 127 } | |
| 128 | |
| 168 | 129 fprintf(stderr, "Trying char-by-char conversion...\n"); |
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130 // conversion failed for the whole string, but maybe it will work |
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131 // for each character |
| 18 | 132 for (d = retval, in = 0, out = 0; in < len && out < buflen - 1;) |
| 133 { | |
| 134 if (from == kCFStringEncodingUTF8) | |
| 474 | 135 l = utf_ptr2len(ptr + in); |
| 18 | 136 else |
| 137 l = 1; | |
| 138 cfstr = CFStringCreateWithBytes(NULL, ptr + in, l, from, 0); | |
| 139 if (cfstr == NULL) | |
| 140 { | |
| 141 *d++ = '?'; | |
| 142 out++; | |
| 143 } | |
| 144 else | |
| 145 { | |
| 501 | 146 if (!CFStringGetCString(cfstr, (char *)d, buflen - out, to)) |
| 18 | 147 { |
| 148 *d++ = '?'; | |
| 149 out++; | |
| 150 } | |
| 151 else | |
| 152 { | |
| 501 | 153 i = STRLEN(d); |
| 18 | 154 d += i; |
| 155 out += i; | |
| 156 } | |
| 157 CFRelease(cfstr); | |
| 158 } | |
| 159 in += l; | |
| 160 } | |
| 161 *d = NUL; | |
| 162 if (lenp != NULL) | |
| 163 *lenp = out; | |
| 164 return retval; | |
| 165 } | |
| 166 CFRelease(cfstr); | |
| 167 if (lenp != NULL) | |
| 501 | 168 *lenp = STRLEN(retval); |
| 168 | 169 |
| 18 | 170 return retval; |
| 171 } | |
| 172 | |
| 173 /* | |
| 174 * Conversion from Apple MacRoman char encoding to UTF-8 or latin1, using | |
| 175 * standard Carbon framework. | |
| 176 * Input: "ptr[*sizep]". | |
| 177 * "real_size" is the size of the buffer that "ptr" points to. | |
| 178 * output is in-place, "sizep" is adjusted. | |
| 179 * Returns OK or FAIL. | |
| 180 */ | |
| 181 int | |
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182 macroman2enc( |
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183 char_u *ptr, |
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184 long *sizep, |
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185 long real_size) |
| 18 | 186 { |
| 187 CFStringRef cfstr; | |
| 188 CFRange r; | |
| 189 CFIndex len = *sizep; | |
| 190 | |
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191 // MacRoman is an 8-bit encoding, no need to move bytes to |
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192 // conv_rest[]. |
| 18 | 193 cfstr = CFStringCreateWithBytes(NULL, ptr, len, |
| 194 kCFStringEncodingMacRoman, 0); | |
| 195 /* | |
| 196 * If there is a conversion error, try using another | |
| 197 * conversion. | |
| 198 */ | |
| 199 if (cfstr == NULL) | |
| 200 return FAIL; | |
| 201 | |
| 202 r.location = 0; | |
| 203 r.length = CFStringGetLength(cfstr); | |
| 204 if (r.length != CFStringGetBytes(cfstr, r, | |
| 205 (enc_utf8) ? kCFStringEncodingUTF8 : kCFStringEncodingISOLatin1, | |
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206 0, // no lossy conversion |
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207 0, // not external representation |
| 18 | 208 ptr + *sizep, real_size - *sizep, &len)) |
| 209 { | |
| 210 CFRelease(cfstr); | |
| 211 return FAIL; | |
| 212 } | |
| 213 CFRelease(cfstr); | |
| 214 mch_memmove(ptr, ptr + *sizep, len); | |
| 215 *sizep = len; | |
| 216 | |
| 217 return OK; | |
| 218 } | |
| 219 | |
| 220 /* | |
| 221 * Conversion from UTF-8 or latin1 to MacRoman. | |
| 222 * Input: "from[fromlen]" | |
| 223 * Output: "to[maxtolen]" length in "*tolenp" | |
| 224 * Unconverted rest in rest[*restlenp]. | |
| 225 * Returns OK or FAIL. | |
| 226 */ | |
| 227 int | |
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228 enc2macroman( |
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229 char_u *from, |
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230 size_t fromlen, |
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231 char_u *to, |
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232 int *tolenp, |
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233 int maxtolen, |
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234 char_u *rest, |
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235 int *restlenp) |
| 18 | 236 { |
| 237 CFStringRef cfstr; | |
| 238 CFRange r; | |
| 239 CFIndex l; | |
| 240 | |
| 241 *restlenp = 0; | |
| 242 cfstr = CFStringCreateWithBytes(NULL, from, fromlen, | |
| 243 (enc_utf8) ? kCFStringEncodingUTF8 : kCFStringEncodingISOLatin1, | |
| 244 0); | |
| 245 while (cfstr == NULL && *restlenp < 3 && fromlen > 1) | |
| 246 { | |
| 247 rest[*restlenp++] = from[--fromlen]; | |
| 248 cfstr = CFStringCreateWithBytes(NULL, from, fromlen, | |
| 249 (enc_utf8) ? kCFStringEncodingUTF8 : kCFStringEncodingISOLatin1, | |
| 250 0); | |
| 251 } | |
| 252 if (cfstr == NULL) | |
| 253 return FAIL; | |
| 254 | |
| 255 r.location = 0; | |
| 256 r.length = CFStringGetLength(cfstr); | |
| 257 if (r.length != CFStringGetBytes(cfstr, r, | |
| 258 kCFStringEncodingMacRoman, | |
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259 0, // no lossy conversion |
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260 0, // not external representation (since vim |
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261 // handles this internally |
| 18 | 262 to, maxtolen, &l)) |
| 263 { | |
| 264 CFRelease(cfstr); | |
| 265 return FAIL; | |
| 266 } | |
| 267 CFRelease(cfstr); | |
| 268 *tolenp = l; | |
| 269 return OK; | |
| 270 } | |
| 20 | 271 |
| 168 | 272 /* |
| 273 * Initializes text converters | |
| 274 */ | |
| 275 void | |
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276 mac_conv_init(void) |
| 168 | 277 { |
| 278 TextEncoding utf8_encoding; | |
| 279 TextEncoding utf8_hfsplus_encoding; | |
| 280 TextEncoding utf8_canon_encoding; | |
| 281 TextEncoding utf16_encoding; | |
| 282 | |
| 283 utf8_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault, | |
| 284 kTextEncodingDefaultVariant, kUnicodeUTF8Format); | |
| 285 utf8_hfsplus_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault, | |
| 286 kUnicodeHFSPlusCompVariant, kUnicodeUTF8Format); | |
| 287 utf8_canon_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault, | |
| 288 kUnicodeCanonicalCompVariant, kUnicodeUTF8Format); | |
| 289 utf16_encoding = CreateTextEncoding(kTextEncodingUnicodeDefault, | |
| 290 kTextEncodingDefaultVariant, kUnicode16BitFormat); | |
| 291 | |
| 292 if (TECCreateConverter(&gPathConverter, utf8_encoding, | |
| 293 utf8_hfsplus_encoding) != noErr) | |
| 294 gPathConverter = NULL; | |
| 295 | |
| 296 if (TECCreateConverter(&gUTF16ToUTF8Converter, utf16_encoding, | |
| 297 utf8_canon_encoding) != noErr) | |
| 179 | 298 { |
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299 // On pre-10.3, Unicode normalization is not available so |
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300 // fall back to non-normalizing converter |
| 179 | 301 if (TECCreateConverter(&gUTF16ToUTF8Converter, utf16_encoding, |
| 302 utf8_encoding) != noErr) | |
| 303 gUTF16ToUTF8Converter = NULL; | |
| 304 } | |
| 168 | 305 } |
| 306 | |
| 307 /* | |
| 308 * Destroys text converters | |
| 309 */ | |
| 310 void | |
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311 mac_conv_cleanup(void) |
| 168 | 312 { |
| 313 if (gUTF16ToUTF8Converter) | |
| 314 { | |
| 315 TECDisposeConverter(gUTF16ToUTF8Converter); | |
| 316 gUTF16ToUTF8Converter = NULL; | |
| 317 } | |
| 318 | |
| 319 if (gPathConverter) | |
| 320 { | |
| 321 TECDisposeConverter(gPathConverter); | |
| 322 gPathConverter = NULL; | |
| 323 } | |
| 324 } | |
| 325 | |
| 326 /* | |
| 327 * Conversion from UTF-16 UniChars to 'encoding' | |
| 1621 | 328 * The function signature uses the real type of UniChar (as typedef'ed in |
| 329 * CFBase.h) to avoid clashes with X11 header files in the .pro file | |
| 168 | 330 */ |
| 331 char_u * | |
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332 mac_utf16_to_enc( |
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333 unsigned short *from, |
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334 size_t fromLen, |
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335 size_t *actualLen) |
| 168 | 336 { |
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337 // Following code borrows somewhat from os_mswin.c |
| 168 | 338 vimconv_T conv; |
| 339 size_t utf8_len; | |
| 340 char_u *utf8_str; | |
| 341 char_u *result = NULL; | |
| 342 | |
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343 // Convert to utf-8 first, works better with iconv |
| 168 | 344 utf8_len = 0; |
| 345 utf8_str = mac_utf16_to_utf8(from, fromLen, &utf8_len); | |
| 346 | |
| 347 if (utf8_str) | |
| 348 { | |
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349 // We might be called before we have p_enc set up. |
| 168 | 350 conv.vc_type = CONV_NONE; |
| 351 | |
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352 // If encoding (p_enc) is any unicode, it is actually in utf-8 (vim |
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353 // internal unicode is always utf-8) so don't convert in such cases |
| 168 | 354 |
| 355 if ((enc_canon_props(p_enc) & ENC_UNICODE) == 0) | |
| 356 convert_setup(&conv, (char_u *)"utf-8", | |
| 357 p_enc? p_enc: (char_u *)"macroman"); | |
| 358 if (conv.vc_type == CONV_NONE) | |
| 359 { | |
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360 // p_enc is utf-8, so we're done. |
| 168 | 361 result = utf8_str; |
| 362 } | |
| 363 else | |
| 364 { | |
| 365 result = string_convert(&conv, utf8_str, (int *)&utf8_len); | |
| 366 vim_free(utf8_str); | |
| 367 } | |
| 368 | |
| 369 convert_setup(&conv, NULL, NULL); | |
| 370 | |
| 371 if (actualLen) | |
| 372 *actualLen = utf8_len; | |
| 373 } | |
| 374 else if (actualLen) | |
| 375 *actualLen = 0; | |
| 376 | |
| 377 return result; | |
| 378 } | |
| 379 | |
| 380 /* | |
| 381 * Conversion from 'encoding' to UTF-16 UniChars | |
| 1621 | 382 * The function return uses the real type of UniChar (as typedef'ed in |
| 383 * CFBase.h) to avoid clashes with X11 header files in the .pro file | |
| 168 | 384 */ |
| 1621 | 385 unsigned short * |
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386 mac_enc_to_utf16( |
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387 char_u *from, |
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388 size_t fromLen, |
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389 size_t *actualLen) |
| 168 | 390 { |
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391 // Following code borrows somewhat from os_mswin.c |
| 168 | 392 vimconv_T conv; |
| 393 size_t utf8_len; | |
| 394 char_u *utf8_str; | |
| 395 UniChar *result = NULL; | |
| 396 Boolean should_free_utf8 = FALSE; | |
| 397 | |
| 398 do | |
| 399 { | |
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400 // Use MacRoman by default, we might be called before we have p_enc |
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401 // set up. Convert to utf-8 first, works better with iconv(). Does |
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402 // nothing if 'encoding' is "utf-8". |
| 168 | 403 conv.vc_type = CONV_NONE; |
| 404 if ((enc_canon_props(p_enc) & ENC_UNICODE) == 0 && | |
| 405 convert_setup(&conv, p_enc ? p_enc : (char_u *)"macroman", | |
| 406 (char_u *)"utf-8") == FAIL) | |
| 407 break; | |
| 408 | |
| 409 if (conv.vc_type != CONV_NONE) | |
| 410 { | |
| 411 utf8_len = fromLen; | |
| 412 utf8_str = string_convert(&conv, from, (int *)&utf8_len); | |
| 413 should_free_utf8 = TRUE; | |
| 414 } | |
| 415 else | |
| 416 { | |
| 417 utf8_str = from; | |
| 418 utf8_len = fromLen; | |
| 419 } | |
| 420 | |
| 421 if (utf8_str == NULL) | |
| 422 break; | |
| 423 | |
| 424 convert_setup(&conv, NULL, NULL); | |
| 425 | |
| 426 result = mac_utf8_to_utf16(utf8_str, utf8_len, actualLen); | |
| 427 | |
| 428 if (should_free_utf8) | |
| 429 vim_free(utf8_str); | |
| 430 return result; | |
| 431 } | |
| 432 while (0); | |
| 433 | |
| 434 if (actualLen) | |
| 435 *actualLen = 0; | |
| 436 | |
| 437 return result; | |
| 438 } | |
| 439 | |
| 440 /* | |
| 441 * Converts from UTF-16 UniChars to CFString | |
| 1621 | 442 * The void * return type is actually a CFStringRef |
| 168 | 443 */ |
| 1621 | 444 void * |
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445 mac_enc_to_cfstring( |
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446 char_u *from, |
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447 size_t fromLen) |
| 168 | 448 { |
| 449 UniChar *utf16_str; | |
| 450 size_t utf16_len; | |
| 451 CFStringRef result = NULL; | |
| 452 | |
| 453 utf16_str = mac_enc_to_utf16(from, fromLen, &utf16_len); | |
| 454 if (utf16_str) | |
| 455 { | |
| 456 result = CFStringCreateWithCharacters(NULL, utf16_str, utf16_len/sizeof(UniChar)); | |
| 457 vim_free(utf16_str); | |
| 458 } | |
| 459 | |
| 1621 | 460 return (void *)result; |
| 168 | 461 } |
| 462 | |
| 463 /* | |
| 464 * Converts a decomposed HFS+ UTF-8 path to precomposed UTF-8 | |
| 465 */ | |
| 466 char_u * | |
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467 mac_precompose_path( |
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468 char_u *decompPath, |
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469 size_t decompLen, |
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470 size_t *precompLen) |
| 168 | 471 { |
| 472 char_u *result = NULL; | |
| 473 size_t actualLen = 0; | |
| 474 | |
| 475 if (gPathConverter) | |
| 476 { | |
| 477 result = alloc(decompLen); | |
| 478 if (result) | |
| 479 { | |
| 480 if (TECConvertText(gPathConverter, decompPath, | |
| 481 decompLen, &decompLen, result, | |
| 482 decompLen, &actualLen) != noErr) | |
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483 VIM_CLEAR(result); |
| 168 | 484 } |
| 485 } | |
| 486 | |
| 487 if (precompLen) | |
| 488 *precompLen = actualLen; | |
| 489 | |
| 490 return result; | |
| 491 } | |
| 492 | |
| 493 /* | |
| 494 * Converts from UTF-16 UniChars to precomposed UTF-8 | |
| 495 */ | |
| 766 | 496 static char_u * |
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497 mac_utf16_to_utf8( |
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498 UniChar *from, |
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499 size_t fromLen, |
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500 size_t *actualLen) |
| 168 | 501 { |
| 502 ByteCount utf8_len; | |
| 503 ByteCount inputRead; | |
| 504 char_u *result; | |
| 505 | |
| 506 if (gUTF16ToUTF8Converter) | |
| 507 { | |
| 508 result = alloc(fromLen * 6 + 1); | |
| 509 if (result && TECConvertText(gUTF16ToUTF8Converter, (ConstTextPtr)from, | |
| 510 fromLen, &inputRead, result, | |
| 511 (fromLen*6+1)*sizeof(char_u), &utf8_len) == noErr) | |
| 512 { | |
| 513 TECFlushText(gUTF16ToUTF8Converter, result, (fromLen*6+1)*sizeof(char_u), &inputRead); | |
| 514 utf8_len += inputRead; | |
| 515 } | |
| 516 else | |
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517 VIM_CLEAR(result); |
| 168 | 518 } |
| 519 else | |
| 520 { | |
| 521 result = NULL; | |
| 522 } | |
| 523 | |
| 524 if (actualLen) | |
| 525 *actualLen = result ? utf8_len : 0; | |
| 526 | |
| 527 return result; | |
| 528 } | |
| 529 | |
| 530 /* | |
| 531 * Converts from UTF-8 to UTF-16 UniChars | |
| 532 */ | |
| 766 | 533 static UniChar * |
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534 mac_utf8_to_utf16( |
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535 char_u *from, |
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536 size_t fromLen, |
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537 size_t *actualLen) |
| 168 | 538 { |
| 539 CFStringRef utf8_str; | |
| 540 CFRange convertRange; | |
| 541 UniChar *result = NULL; | |
| 542 | |
| 543 utf8_str = CFStringCreateWithBytes(NULL, from, fromLen, | |
| 544 kCFStringEncodingUTF8, FALSE); | |
| 545 | |
| 546 if (utf8_str == NULL) { | |
| 547 if (actualLen) | |
| 548 *actualLen = 0; | |
| 549 return NULL; | |
| 550 } | |
| 551 | |
| 552 convertRange = CFRangeMake(0, CFStringGetLength(utf8_str)); | |
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553 result = ALLOC_MULT(UniChar, convertRange.length); |
| 168 | 554 |
| 555 CFStringGetCharacters(utf8_str, convertRange, result); | |
| 556 | |
| 557 CFRelease(utf8_str); | |
| 558 | |
| 559 if (actualLen) | |
| 560 *actualLen = convertRange.length * sizeof(UniChar); | |
| 561 | |
| 562 return result; | |
| 563 } | |
| 1621 | 564 |
| 565 /* | |
| 566 * Sets LANG environment variable in Vim from Mac locale | |
| 567 */ | |
| 568 void | |
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569 mac_lang_init(void) |
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570 { |
| 1621 | 571 if (mch_getenv((char_u *)"LANG") == NULL) |
| 572 { | |
| 573 char buf[20]; | |
| 574 if (LocaleRefGetPartString(NULL, | |
| 575 kLocaleLanguageMask | kLocaleLanguageVariantMask | | |
| 576 kLocaleRegionMask | kLocaleRegionVariantMask, | |
| 577 sizeof buf, buf) == noErr && *buf) | |
| 578 { | |
| 579 vim_setenv((char_u *)"LANG", (char_u *)buf); | |
| 580 # ifdef HAVE_LOCALE_H | |
| 581 setlocale(LC_ALL, ""); | |
| 582 # endif | |
| 583 } | |
| 584 } | |
| 585 } | |
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586 #endif // MACOS_CONVERT |