/usr/lib/gcc/x86_64-linux-gnu/6/include/d/rt/util/utf.d is in libgphobos-6-dev 6.4.0-17ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 | /********************************************
* Encode and decode UTF-8, UTF-16 and UTF-32 strings.
*
* For Win32 systems, the C wchar_t type is UTF-16 and corresponds to the D
* wchar type.
* For Posix systems, the C wchar_t type is UTF-32 and corresponds to
* the D utf.dchar type.
*
* UTF character support is restricted to (\u0000 <= character <= \U0010FFFF).
*
* See_Also:
* $(LINK2 http://en.wikipedia.org/wiki/Unicode, Wikipedia)<br>
* $(LINK http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8)<br>
* $(LINK http://anubis.dkuug.dk/JTC1/SC2/WG2/docs/n1335)
* Macros:
* WIKI = Phobos/StdUtf
*
* Copyright: Copyright Digital Mars 2003 - 2009.
* License: $(WEB www.boost.org/LICENSE_1_0.txt, Boost License 1.0).
* Authors: Walter Bright, Sean Kelly
*/
/* Copyright Digital Mars 2003 - 2009.
* Distributed under the Boost Software License, Version 1.0.
* (See accompanying file LICENSE or copy at
* http://www.boost.org/LICENSE_1_0.txt)
*/
module rt.util.utf;
extern (C) void onUnicodeError( string msg, size_t idx, string file = __FILE__, size_t line = __LINE__ );
/*******************************
* Test if c is a valid UTF-32 character.
*
* \uFFFE and \uFFFF are considered valid by this function,
* as they are permitted for internal use by an application,
* but they are not allowed for interchange by the Unicode standard.
*
* Returns: true if it is, false if not.
*/
bool isValidDchar(dchar c)
{
/* Note: FFFE and FFFF are specifically permitted by the
* Unicode standard for application internal use, but are not
* allowed for interchange.
* (thanks to Arcane Jill)
*/
return c < 0xD800 ||
(c > 0xDFFF && c <= 0x10FFFF /*&& c != 0xFFFE && c != 0xFFFF*/);
}
unittest
{
debug(utf) printf("utf.isValidDchar.unittest\n");
assert(isValidDchar(cast(dchar)'a') == true);
assert(isValidDchar(cast(dchar)0x1FFFFF) == false);
}
static immutable UTF8stride =
[
cast(ubyte)
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
4,4,4,4,4,4,4,4,5,5,5,5,6,6,0xFF,0xFF,
];
/**
* stride() returns the length of a UTF-8 sequence starting at index i
* in string s.
* Returns:
* The number of bytes in the UTF-8 sequence or
* 0xFF meaning s[i] is not the start of of UTF-8 sequence.
*/
uint stride(in char[] s, size_t i)
{
return UTF8stride[s[i]];
}
/**
* stride() returns the length of a UTF-16 sequence starting at index i
* in string s.
*/
uint stride(in wchar[] s, size_t i)
{ uint u = s[i];
return 1 + (u >= 0xD800 && u <= 0xDBFF);
}
/**
* stride() returns the length of a UTF-32 sequence starting at index i
* in string s.
* Returns: The return value will always be 1.
*/
uint stride(in dchar[] s, size_t i)
{
return 1;
}
/*******************************************
* Given an index i into an array of characters s[],
* and assuming that index i is at the start of a UTF character,
* determine the number of UCS characters up to that index i.
*/
size_t toUCSindex(in char[] s, size_t i)
{
size_t n;
size_t j;
for (j = 0; j < i; )
{
j += stride(s, j);
n++;
}
if (j > i)
{
onUnicodeError("invalid UTF-8 sequence", j);
}
return n;
}
/** ditto */
size_t toUCSindex(in wchar[] s, size_t i)
{
size_t n;
size_t j;
for (j = 0; j < i; )
{
j += stride(s, j);
n++;
}
if (j > i)
{
onUnicodeError("invalid UTF-16 sequence", j);
}
return n;
}
/** ditto */
size_t toUCSindex(in dchar[] s, size_t i)
{
return i;
}
/******************************************
* Given a UCS index n into an array of characters s[], return the UTF index.
*/
size_t toUTFindex(in char[] s, size_t n)
{
size_t i;
while (n--)
{
uint j = UTF8stride[s[i]];
if (j == 0xFF)
onUnicodeError("invalid UTF-8 sequence", i);
i += j;
}
return i;
}
/** ditto */
size_t toUTFindex(in wchar[] s, size_t n)
{
size_t i;
while (n--)
{ wchar u = s[i];
i += 1 + (u >= 0xD800 && u <= 0xDBFF);
}
return i;
}
/** ditto */
size_t toUTFindex(in dchar[] s, size_t n)
{
return n;
}
/* =================== Decode ======================= */
/***************
* Decodes and returns character starting at s[idx]. idx is advanced past the
* decoded character. If the character is not well formed, a UtfException is
* thrown and idx remains unchanged.
*/
dchar decode(in char[] s, ref size_t idx)
in
{
assert(idx >= 0 && idx < s.length);
}
out (result)
{
assert(isValidDchar(result));
}
body
{
size_t len = s.length;
dchar V;
size_t i = idx;
char u = s[i];
if (u & 0x80)
{ uint n;
char u2;
/* The following encodings are valid, except for the 5 and 6 byte
* combinations:
* 0xxxxxxx
* 110xxxxx 10xxxxxx
* 1110xxxx 10xxxxxx 10xxxxxx
* 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
* 111110xx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
* 1111110x 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx
*/
for (n = 1; ; n++)
{
if (n > 4)
goto Lerr; // only do the first 4 of 6 encodings
if (((u << n) & 0x80) == 0)
{
if (n == 1)
goto Lerr;
break;
}
}
// Pick off (7 - n) significant bits of B from first byte of octet
V = cast(dchar)(u & ((1 << (7 - n)) - 1));
if (i + (n - 1) >= len)
goto Lerr; // off end of string
/* The following combinations are overlong, and illegal:
* 1100000x (10xxxxxx)
* 11100000 100xxxxx (10xxxxxx)
* 11110000 1000xxxx (10xxxxxx 10xxxxxx)
* 11111000 10000xxx (10xxxxxx 10xxxxxx 10xxxxxx)
* 11111100 100000xx (10xxxxxx 10xxxxxx 10xxxxxx 10xxxxxx)
*/
u2 = s[i + 1];
if ((u & 0xFE) == 0xC0 ||
(u == 0xE0 && (u2 & 0xE0) == 0x80) ||
(u == 0xF0 && (u2 & 0xF0) == 0x80) ||
(u == 0xF8 && (u2 & 0xF8) == 0x80) ||
(u == 0xFC && (u2 & 0xFC) == 0x80))
goto Lerr; // overlong combination
for (uint j = 1; j != n; j++)
{
u = s[i + j];
if ((u & 0xC0) != 0x80)
goto Lerr; // trailing bytes are 10xxxxxx
V = (V << 6) | (u & 0x3F);
}
if (!isValidDchar(V))
goto Lerr;
i += n;
}
else
{
V = cast(dchar) u;
i++;
}
idx = i;
return V;
Lerr:
onUnicodeError("invalid UTF-8 sequence", i);
return V; // dummy return
}
unittest
{ size_t i;
dchar c;
debug(utf) printf("utf.decode.unittest\n");
static s1 = "abcd"c;
i = 0;
c = decode(s1, i);
assert(c == cast(dchar)'a');
assert(i == 1);
c = decode(s1, i);
assert(c == cast(dchar)'b');
assert(i == 2);
static s2 = "\xC2\xA9"c;
i = 0;
c = decode(s2, i);
assert(c == cast(dchar)'\u00A9');
assert(i == 2);
static s3 = "\xE2\x89\xA0"c;
i = 0;
c = decode(s3, i);
assert(c == cast(dchar)'\u2260');
assert(i == 3);
static s4 =
[ "\xE2\x89"c[], // too short
"\xC0\x8A",
"\xE0\x80\x8A",
"\xF0\x80\x80\x8A",
"\xF8\x80\x80\x80\x8A",
"\xFC\x80\x80\x80\x80\x8A",
];
for (int j = 0; j < s4.length; j++)
{
try
{
i = 0;
c = decode(s4[j], i);
assert(0);
}
catch (Throwable o)
{
i = 23;
}
assert(i == 23);
}
}
/** ditto */
dchar decode(in wchar[] s, ref size_t idx)
in
{
assert(idx >= 0 && idx < s.length);
}
out (result)
{
assert(isValidDchar(result));
}
body
{
string msg;
dchar V;
size_t i = idx;
uint u = s[i];
if (u & ~0x7F)
{ if (u >= 0xD800 && u <= 0xDBFF)
{ uint u2;
if (i + 1 == s.length)
{ msg = "surrogate UTF-16 high value past end of string";
goto Lerr;
}
u2 = s[i + 1];
if (u2 < 0xDC00 || u2 > 0xDFFF)
{ msg = "surrogate UTF-16 low value out of range";
goto Lerr;
}
u = ((u - 0xD7C0) << 10) + (u2 - 0xDC00);
i += 2;
}
else if (u >= 0xDC00 && u <= 0xDFFF)
{ msg = "unpaired surrogate UTF-16 value";
goto Lerr;
}
else if (u == 0xFFFE || u == 0xFFFF)
{ msg = "illegal UTF-16 value";
goto Lerr;
}
else
i++;
}
else
{
i++;
}
idx = i;
return cast(dchar)u;
Lerr:
onUnicodeError(msg, i);
return cast(dchar)u; // dummy return
}
/** ditto */
dchar decode(in dchar[] s, ref size_t idx)
in
{
assert(idx >= 0 && idx < s.length);
}
body
{
size_t i = idx;
dchar c = s[i];
if (!isValidDchar(c))
goto Lerr;
idx = i + 1;
return c;
Lerr:
onUnicodeError("invalid UTF-32 value", i);
return c; // dummy return
}
/* =================== Encode ======================= */
/*******************************
* Encodes character c and appends it to array s[].
*/
void encode(ref char[] s, dchar c)
in
{
assert(isValidDchar(c));
}
body
{
char[] r = s;
if (c <= 0x7F)
{
r ~= cast(char) c;
}
else
{
char[4] buf;
uint L;
if (c <= 0x7FF)
{
buf[0] = cast(char)(0xC0 | (c >> 6));
buf[1] = cast(char)(0x80 | (c & 0x3F));
L = 2;
}
else if (c <= 0xFFFF)
{
buf[0] = cast(char)(0xE0 | (c >> 12));
buf[1] = cast(char)(0x80 | ((c >> 6) & 0x3F));
buf[2] = cast(char)(0x80 | (c & 0x3F));
L = 3;
}
else if (c <= 0x10FFFF)
{
buf[0] = cast(char)(0xF0 | (c >> 18));
buf[1] = cast(char)(0x80 | ((c >> 12) & 0x3F));
buf[2] = cast(char)(0x80 | ((c >> 6) & 0x3F));
buf[3] = cast(char)(0x80 | (c & 0x3F));
L = 4;
}
else
{
assert(0);
}
r ~= buf[0 .. L];
}
s = r;
}
unittest
{
debug(utf) printf("utf.encode.unittest\n");
char[] s = "abcd".dup;
encode(s, cast(dchar)'a');
assert(s.length == 5);
assert(s == "abcda");
encode(s, cast(dchar)'\u00A9');
assert(s.length == 7);
assert(s == "abcda\xC2\xA9");
//assert(s == "abcda\u00A9"); // BUG: fix compiler
encode(s, cast(dchar)'\u2260');
assert(s.length == 10);
assert(s == "abcda\xC2\xA9\xE2\x89\xA0");
}
/** ditto */
void encode(ref wchar[] s, dchar c)
in
{
assert(isValidDchar(c));
}
body
{
wchar[] r = s;
if (c <= 0xFFFF)
{
r ~= cast(wchar) c;
}
else
{
wchar[2] buf;
buf[0] = cast(wchar) ((((c - 0x10000) >> 10) & 0x3FF) + 0xD800);
buf[1] = cast(wchar) (((c - 0x10000) & 0x3FF) + 0xDC00);
r ~= buf;
}
s = r;
}
/** ditto */
void encode(ref dchar[] s, dchar c)
in
{
assert(isValidDchar(c));
}
body
{
s ~= c;
}
/**
Returns the code length of $(D c) in the encoding using $(D C) as a
code point. The code is returned in character count, not in bytes.
*/
ubyte codeLength(C)(dchar c)
{
static if (C.sizeof == 1)
{
if (c <= 0x7F) return 1;
if (c <= 0x7FF) return 2;
if (c <= 0xFFFF) return 3;
if (c <= 0x10FFFF) return 4;
assert(false);
}
else static if (C.sizeof == 2)
{
return c <= 0xFFFF ? 1 : 2;
}
else
{
static assert(C.sizeof == 4);
return 1;
}
}
/* =================== Validation ======================= */
/***********************************
Checks to see if string is well formed or not. $(D S) can be an array
of $(D char), $(D wchar), or $(D dchar). Throws a $(D UtfException)
if it is not. Use to check all untrusted input for correctness.
*/
void validate(S)(in S s)
{
auto len = s.length;
for (size_t i = 0; i < len; )
{
decode(s, i);
}
}
/* =================== Conversion to UTF8 ======================= */
char[] toUTF8(return out char[4] buf, dchar c)
in
{
assert(isValidDchar(c));
}
body
{
if (c <= 0x7F)
{
buf[0] = cast(char) c;
return buf[0 .. 1];
}
else if (c <= 0x7FF)
{
buf[0] = cast(char)(0xC0 | (c >> 6));
buf[1] = cast(char)(0x80 | (c & 0x3F));
return buf[0 .. 2];
}
else if (c <= 0xFFFF)
{
buf[0] = cast(char)(0xE0 | (c >> 12));
buf[1] = cast(char)(0x80 | ((c >> 6) & 0x3F));
buf[2] = cast(char)(0x80 | (c & 0x3F));
return buf[0 .. 3];
}
else if (c <= 0x10FFFF)
{
buf[0] = cast(char)(0xF0 | (c >> 18));
buf[1] = cast(char)(0x80 | ((c >> 12) & 0x3F));
buf[2] = cast(char)(0x80 | ((c >> 6) & 0x3F));
buf[3] = cast(char)(0x80 | (c & 0x3F));
return buf[0 .. 4];
}
assert(0);
}
/*******************
* Encodes string s into UTF-8 and returns the encoded string.
*/
string toUTF8(string s)
in
{
validate(s);
}
body
{
return s;
}
/** ditto */
string toUTF8(in wchar[] s)
{
char[] r;
size_t i;
size_t slen = s.length;
r.length = slen;
for (i = 0; i < slen; i++)
{ wchar c = s[i];
if (c <= 0x7F)
r[i] = cast(char)c; // fast path for ascii
else
{
r.length = i;
foreach (dchar c; s[i .. slen])
{
encode(r, c);
}
break;
}
}
return cast(string)r;
}
/** ditto */
string toUTF8(in dchar[] s)
{
char[] r;
size_t i;
size_t slen = s.length;
r.length = slen;
for (i = 0; i < slen; i++)
{ dchar c = s[i];
if (c <= 0x7F)
r[i] = cast(char)c; // fast path for ascii
else
{
r.length = i;
foreach (dchar d; s[i .. slen])
{
encode(r, d);
}
break;
}
}
return cast(string)r;
}
/* =================== Conversion to UTF16 ======================= */
wchar[] toUTF16(return out wchar[2] buf, dchar c)
in
{
assert(isValidDchar(c));
}
body
{
if (c <= 0xFFFF)
{
buf[0] = cast(wchar) c;
return buf[0 .. 1];
}
else
{
buf[0] = cast(wchar) ((((c - 0x10000) >> 10) & 0x3FF) + 0xD800);
buf[1] = cast(wchar) (((c - 0x10000) & 0x3FF) + 0xDC00);
return buf[0 .. 2];
}
}
/****************
* Encodes string s into UTF-16 and returns the encoded string.
* toUTF16z() is suitable for calling the 'W' functions in the Win32 API that take
* an LPWSTR or LPCWSTR argument.
*/
wstring toUTF16(in char[] s)
{
wchar[] r;
size_t slen = s.length;
r.length = slen;
r.length = 0;
for (size_t i = 0; i < slen; )
{
dchar c = s[i];
if (c <= 0x7F)
{
i++;
r ~= cast(wchar)c;
}
else
{
c = decode(s, i);
encode(r, c);
}
}
return cast(wstring)r;
}
alias const(wchar)* wptr;
/** ditto */
wptr toUTF16z(in char[] s)
{
wchar[] r;
size_t slen = s.length;
r.length = slen + 1;
r.length = 0;
for (size_t i = 0; i < slen; )
{
dchar c = s[i];
if (c <= 0x7F)
{
i++;
r ~= cast(wchar)c;
}
else
{
c = decode(s, i);
encode(r, c);
}
}
r ~= '\000';
return r.ptr;
}
/** ditto */
wstring toUTF16(wstring s)
in
{
validate(s);
}
body
{
return s;
}
/** ditto */
wstring toUTF16(in dchar[] s)
{
wchar[] r;
size_t slen = s.length;
r.length = slen;
r.length = 0;
for (size_t i = 0; i < slen; i++)
{
encode(r, s[i]);
}
return cast(wstring)r;
}
/* =================== Conversion to UTF32 ======================= */
/*****
* Encodes string s into UTF-32 and returns the encoded string.
*/
dstring toUTF32(in char[] s)
{
dchar[] r;
size_t slen = s.length;
size_t j = 0;
r.length = slen; // r[] will never be longer than s[]
for (size_t i = 0; i < slen; )
{
dchar c = s[i];
if (c >= 0x80)
c = decode(s, i);
else
i++; // c is ascii, no need for decode
r[j++] = c;
}
return cast(dstring)r[0 .. j];
}
/** ditto */
dstring toUTF32(in wchar[] s)
{
dchar[] r;
size_t slen = s.length;
size_t j = 0;
r.length = slen; // r[] will never be longer than s[]
for (size_t i = 0; i < slen; )
{
dchar c = s[i];
if (c >= 0x80)
c = decode(s, i);
else
i++; // c is ascii, no need for decode
r[j++] = c;
}
return cast(dstring)r[0 .. j];
}
/** ditto */
dstring toUTF32(dstring s)
in
{
validate(s);
}
body
{
return s;
}
/* ================================ tests ================================== */
unittest
{
debug(utf) printf("utf.toUTF.unittest\n");
auto c = "hello"c[];
auto w = toUTF16(c);
assert(w == "hello");
auto d = toUTF32(c);
assert(d == "hello");
c = toUTF8(w);
assert(c == "hello");
d = toUTF32(w);
assert(d == "hello");
c = toUTF8(d);
assert(c == "hello");
w = toUTF16(d);
assert(w == "hello");
c = "hel\u1234o";
w = toUTF16(c);
assert(w == "hel\u1234o");
d = toUTF32(c);
assert(d == "hel\u1234o");
c = toUTF8(w);
assert(c == "hel\u1234o");
d = toUTF32(w);
assert(d == "hel\u1234o");
c = toUTF8(d);
assert(c == "hel\u1234o");
w = toUTF16(d);
assert(w == "hel\u1234o");
c = "he\U000BAAAAllo";
w = toUTF16(c);
//foreach (wchar c; w) printf("c = x%x\n", c);
//foreach (wchar c; cast(wstring)"he\U000BAAAAllo") printf("c = x%x\n", c);
assert(w == "he\U000BAAAAllo");
d = toUTF32(c);
assert(d == "he\U000BAAAAllo");
c = toUTF8(w);
assert(c == "he\U000BAAAAllo");
d = toUTF32(w);
assert(d == "he\U000BAAAAllo");
c = toUTF8(d);
assert(c == "he\U000BAAAAllo");
w = toUTF16(d);
assert(w == "he\U000BAAAAllo");
wchar[2] buf;
auto ret = toUTF16(buf, '\U000BAAAA');
assert(ret == "\U000BAAAA");
}
|