freebsd-nq/contrib/llvm/lib/Support/Unicode.cpp
Dimitry Andric f785676f2a Upgrade our copy of llvm/clang to 3.4 release. This version supports
all of the features in the current working draft of the upcoming C++
standard, provisionally named C++1y.

The code generator's performance is greatly increased, and the loop
auto-vectorizer is now enabled at -Os and -O2 in addition to -O3.  The
PowerPC backend has made several major improvements to code generation
quality and compile time, and the X86, SPARC, ARM32, Aarch64 and SystemZ
backends have all seen major feature work.

Release notes for llvm and clang can be found here:
<http://llvm.org/releases/3.4/docs/ReleaseNotes.html>
<http://llvm.org/releases/3.4/tools/clang/docs/ReleaseNotes.html>

MFC after:	1 month
2014-02-16 19:44:07 +00:00

368 lines
20 KiB
C++

//===- llvm/Support/Unicode.cpp - Unicode character properties -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file implements functions that allow querying certain properties of
// Unicode characters.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Unicode.h"
#include "llvm/Support/ConvertUTF.h"
#include "llvm/Support/UnicodeCharRanges.h"
namespace llvm {
namespace sys {
namespace unicode {
bool isPrintable(int UCS) {
// Sorted list of non-overlapping intervals of code points that are not
// supposed to be printable.
static const UnicodeCharRange NonPrintableRanges[] = {
{ 0x0000, 0x001F }, { 0x007F, 0x009F }, { 0x034F, 0x034F },
{ 0x0378, 0x0379 }, { 0x037F, 0x0383 }, { 0x038B, 0x038B },
{ 0x038D, 0x038D }, { 0x03A2, 0x03A2 }, { 0x0528, 0x0530 },
{ 0x0557, 0x0558 }, { 0x0560, 0x0560 }, { 0x0588, 0x0588 },
{ 0x058B, 0x058E }, { 0x0590, 0x0590 }, { 0x05C8, 0x05CF },
{ 0x05EB, 0x05EF }, { 0x05F5, 0x0605 }, { 0x061C, 0x061D },
{ 0x06DD, 0x06DD }, { 0x070E, 0x070F }, { 0x074B, 0x074C },
{ 0x07B2, 0x07BF }, { 0x07FB, 0x07FF }, { 0x082E, 0x082F },
{ 0x083F, 0x083F }, { 0x085C, 0x085D }, { 0x085F, 0x089F },
{ 0x08A1, 0x08A1 }, { 0x08AD, 0x08E3 }, { 0x08FF, 0x08FF },
{ 0x0978, 0x0978 }, { 0x0980, 0x0980 }, { 0x0984, 0x0984 },
{ 0x098D, 0x098E }, { 0x0991, 0x0992 }, { 0x09A9, 0x09A9 },
{ 0x09B1, 0x09B1 }, { 0x09B3, 0x09B5 }, { 0x09BA, 0x09BB },
{ 0x09C5, 0x09C6 }, { 0x09C9, 0x09CA }, { 0x09CF, 0x09D6 },
{ 0x09D8, 0x09DB }, { 0x09DE, 0x09DE }, { 0x09E4, 0x09E5 },
{ 0x09FC, 0x0A00 }, { 0x0A04, 0x0A04 }, { 0x0A0B, 0x0A0E },
{ 0x0A11, 0x0A12 }, { 0x0A29, 0x0A29 }, { 0x0A31, 0x0A31 },
{ 0x0A34, 0x0A34 }, { 0x0A37, 0x0A37 }, { 0x0A3A, 0x0A3B },
{ 0x0A3D, 0x0A3D }, { 0x0A43, 0x0A46 }, { 0x0A49, 0x0A4A },
{ 0x0A4E, 0x0A50 }, { 0x0A52, 0x0A58 }, { 0x0A5D, 0x0A5D },
{ 0x0A5F, 0x0A65 }, { 0x0A76, 0x0A80 }, { 0x0A84, 0x0A84 },
{ 0x0A8E, 0x0A8E }, { 0x0A92, 0x0A92 }, { 0x0AA9, 0x0AA9 },
{ 0x0AB1, 0x0AB1 }, { 0x0AB4, 0x0AB4 }, { 0x0ABA, 0x0ABB },
{ 0x0AC6, 0x0AC6 }, { 0x0ACA, 0x0ACA }, { 0x0ACE, 0x0ACF },
{ 0x0AD1, 0x0ADF }, { 0x0AE4, 0x0AE5 }, { 0x0AF2, 0x0B00 },
{ 0x0B04, 0x0B04 }, { 0x0B0D, 0x0B0E }, { 0x0B11, 0x0B12 },
{ 0x0B29, 0x0B29 }, { 0x0B31, 0x0B31 }, { 0x0B34, 0x0B34 },
{ 0x0B3A, 0x0B3B }, { 0x0B45, 0x0B46 }, { 0x0B49, 0x0B4A },
{ 0x0B4E, 0x0B55 }, { 0x0B58, 0x0B5B }, { 0x0B5E, 0x0B5E },
{ 0x0B64, 0x0B65 }, { 0x0B78, 0x0B81 }, { 0x0B84, 0x0B84 },
{ 0x0B8B, 0x0B8D }, { 0x0B91, 0x0B91 }, { 0x0B96, 0x0B98 },
{ 0x0B9B, 0x0B9B }, { 0x0B9D, 0x0B9D }, { 0x0BA0, 0x0BA2 },
{ 0x0BA5, 0x0BA7 }, { 0x0BAB, 0x0BAD }, { 0x0BBA, 0x0BBD },
{ 0x0BC3, 0x0BC5 }, { 0x0BC9, 0x0BC9 }, { 0x0BCE, 0x0BCF },
{ 0x0BD1, 0x0BD6 }, { 0x0BD8, 0x0BE5 }, { 0x0BFB, 0x0C00 },
{ 0x0C04, 0x0C04 }, { 0x0C0D, 0x0C0D }, { 0x0C11, 0x0C11 },
{ 0x0C29, 0x0C29 }, { 0x0C34, 0x0C34 }, { 0x0C3A, 0x0C3C },
{ 0x0C45, 0x0C45 }, { 0x0C49, 0x0C49 }, { 0x0C4E, 0x0C54 },
{ 0x0C57, 0x0C57 }, { 0x0C5A, 0x0C5F }, { 0x0C64, 0x0C65 },
{ 0x0C70, 0x0C77 }, { 0x0C80, 0x0C81 }, { 0x0C84, 0x0C84 },
{ 0x0C8D, 0x0C8D }, { 0x0C91, 0x0C91 }, { 0x0CA9, 0x0CA9 },
{ 0x0CB4, 0x0CB4 }, { 0x0CBA, 0x0CBB }, { 0x0CC5, 0x0CC5 },
{ 0x0CC9, 0x0CC9 }, { 0x0CCE, 0x0CD4 }, { 0x0CD7, 0x0CDD },
{ 0x0CDF, 0x0CDF }, { 0x0CE4, 0x0CE5 }, { 0x0CF0, 0x0CF0 },
{ 0x0CF3, 0x0D01 }, { 0x0D04, 0x0D04 }, { 0x0D0D, 0x0D0D },
{ 0x0D11, 0x0D11 }, { 0x0D3B, 0x0D3C }, { 0x0D45, 0x0D45 },
{ 0x0D49, 0x0D49 }, { 0x0D4F, 0x0D56 }, { 0x0D58, 0x0D5F },
{ 0x0D64, 0x0D65 }, { 0x0D76, 0x0D78 }, { 0x0D80, 0x0D81 },
{ 0x0D84, 0x0D84 }, { 0x0D97, 0x0D99 }, { 0x0DB2, 0x0DB2 },
{ 0x0DBC, 0x0DBC }, { 0x0DBE, 0x0DBF }, { 0x0DC7, 0x0DC9 },
{ 0x0DCB, 0x0DCE }, { 0x0DD5, 0x0DD5 }, { 0x0DD7, 0x0DD7 },
{ 0x0DE0, 0x0DF1 }, { 0x0DF5, 0x0E00 }, { 0x0E3B, 0x0E3E },
{ 0x0E5C, 0x0E80 }, { 0x0E83, 0x0E83 }, { 0x0E85, 0x0E86 },
{ 0x0E89, 0x0E89 }, { 0x0E8B, 0x0E8C }, { 0x0E8E, 0x0E93 },
{ 0x0E98, 0x0E98 }, { 0x0EA0, 0x0EA0 }, { 0x0EA4, 0x0EA4 },
{ 0x0EA6, 0x0EA6 }, { 0x0EA8, 0x0EA9 }, { 0x0EAC, 0x0EAC },
{ 0x0EBA, 0x0EBA }, { 0x0EBE, 0x0EBF }, { 0x0EC5, 0x0EC5 },
{ 0x0EC7, 0x0EC7 }, { 0x0ECE, 0x0ECF }, { 0x0EDA, 0x0EDB },
{ 0x0EE0, 0x0EFF }, { 0x0F48, 0x0F48 }, { 0x0F6D, 0x0F70 },
{ 0x0F98, 0x0F98 }, { 0x0FBD, 0x0FBD }, { 0x0FCD, 0x0FCD },
{ 0x0FDB, 0x0FFF }, { 0x10C6, 0x10C6 }, { 0x10C8, 0x10CC },
{ 0x10CE, 0x10CF }, { 0x115F, 0x1160 }, { 0x1249, 0x1249 },
{ 0x124E, 0x124F }, { 0x1257, 0x1257 }, { 0x1259, 0x1259 },
{ 0x125E, 0x125F }, { 0x1289, 0x1289 }, { 0x128E, 0x128F },
{ 0x12B1, 0x12B1 }, { 0x12B6, 0x12B7 }, { 0x12BF, 0x12BF },
{ 0x12C1, 0x12C1 }, { 0x12C6, 0x12C7 }, { 0x12D7, 0x12D7 },
{ 0x1311, 0x1311 }, { 0x1316, 0x1317 }, { 0x135B, 0x135C },
{ 0x137D, 0x137F }, { 0x139A, 0x139F }, { 0x13F5, 0x13FF },
{ 0x169D, 0x169F }, { 0x16F1, 0x16FF }, { 0x170D, 0x170D },
{ 0x1715, 0x171F }, { 0x1737, 0x173F }, { 0x1754, 0x175F },
{ 0x176D, 0x176D }, { 0x1771, 0x1771 }, { 0x1774, 0x177F },
{ 0x17B4, 0x17B5 }, { 0x17DE, 0x17DF }, { 0x17EA, 0x17EF },
{ 0x17FA, 0x17FF }, { 0x180B, 0x180D }, { 0x180F, 0x180F },
{ 0x181A, 0x181F }, { 0x1878, 0x187F }, { 0x18AB, 0x18AF },
{ 0x18F6, 0x18FF }, { 0x191D, 0x191F }, { 0x192C, 0x192F },
{ 0x193C, 0x193F }, { 0x1941, 0x1943 }, { 0x196E, 0x196F },
{ 0x1975, 0x197F }, { 0x19AC, 0x19AF }, { 0x19CA, 0x19CF },
{ 0x19DB, 0x19DD }, { 0x1A1C, 0x1A1D }, { 0x1A5F, 0x1A5F },
{ 0x1A7D, 0x1A7E }, { 0x1A8A, 0x1A8F }, { 0x1A9A, 0x1A9F },
{ 0x1AAE, 0x1AFF }, { 0x1B4C, 0x1B4F }, { 0x1B7D, 0x1B7F },
{ 0x1BF4, 0x1BFB }, { 0x1C38, 0x1C3A }, { 0x1C4A, 0x1C4C },
{ 0x1C80, 0x1CBF }, { 0x1CC8, 0x1CCF }, { 0x1CF7, 0x1CFF },
{ 0x1DE7, 0x1DFB }, { 0x1F16, 0x1F17 }, { 0x1F1E, 0x1F1F },
{ 0x1F46, 0x1F47 }, { 0x1F4E, 0x1F4F }, { 0x1F58, 0x1F58 },
{ 0x1F5A, 0x1F5A }, { 0x1F5C, 0x1F5C }, { 0x1F5E, 0x1F5E },
{ 0x1F7E, 0x1F7F }, { 0x1FB5, 0x1FB5 }, { 0x1FC5, 0x1FC5 },
{ 0x1FD4, 0x1FD5 }, { 0x1FDC, 0x1FDC }, { 0x1FF0, 0x1FF1 },
{ 0x1FF5, 0x1FF5 }, { 0x1FFF, 0x1FFF }, { 0x200B, 0x200F },
{ 0x202A, 0x202E }, { 0x2060, 0x206F }, { 0x2072, 0x2073 },
{ 0x208F, 0x208F }, { 0x209D, 0x209F }, { 0x20BB, 0x20CF },
{ 0x20F1, 0x20FF }, { 0x218A, 0x218F }, { 0x23F4, 0x23FF },
{ 0x2427, 0x243F }, { 0x244B, 0x245F }, { 0x2700, 0x2700 },
{ 0x2B4D, 0x2B4F }, { 0x2B5A, 0x2BFF }, { 0x2C2F, 0x2C2F },
{ 0x2C5F, 0x2C5F }, { 0x2CF4, 0x2CF8 }, { 0x2D26, 0x2D26 },
{ 0x2D28, 0x2D2C }, { 0x2D2E, 0x2D2F }, { 0x2D68, 0x2D6E },
{ 0x2D71, 0x2D7E }, { 0x2D97, 0x2D9F }, { 0x2DA7, 0x2DA7 },
{ 0x2DAF, 0x2DAF }, { 0x2DB7, 0x2DB7 }, { 0x2DBF, 0x2DBF },
{ 0x2DC7, 0x2DC7 }, { 0x2DCF, 0x2DCF }, { 0x2DD7, 0x2DD7 },
{ 0x2DDF, 0x2DDF }, { 0x2E3C, 0x2E7F }, { 0x2E9A, 0x2E9A },
{ 0x2EF4, 0x2EFF }, { 0x2FD6, 0x2FEF }, { 0x2FFC, 0x2FFF },
{ 0x3040, 0x3040 }, { 0x3097, 0x3098 }, { 0x3100, 0x3104 },
{ 0x312E, 0x3130 }, { 0x3164, 0x3164 }, { 0x318F, 0x318F },
{ 0x31BB, 0x31BF }, { 0x31E4, 0x31EF }, { 0x321F, 0x321F },
{ 0x32FF, 0x32FF }, { 0x4DB6, 0x4DBF }, { 0x9FCD, 0x9FFF },
{ 0xA48D, 0xA48F }, { 0xA4C7, 0xA4CF }, { 0xA62C, 0xA63F },
{ 0xA698, 0xA69E }, { 0xA6F8, 0xA6FF }, { 0xA78F, 0xA78F },
{ 0xA794, 0xA79F }, { 0xA7AB, 0xA7F7 }, { 0xA82C, 0xA82F },
{ 0xA83A, 0xA83F }, { 0xA878, 0xA87F }, { 0xA8C5, 0xA8CD },
{ 0xA8DA, 0xA8DF }, { 0xA8FC, 0xA8FF }, { 0xA954, 0xA95E },
{ 0xA97D, 0xA97F }, { 0xA9CE, 0xA9CE }, { 0xA9DA, 0xA9DD },
{ 0xA9E0, 0xA9FF }, { 0xAA37, 0xAA3F }, { 0xAA4E, 0xAA4F },
{ 0xAA5A, 0xAA5B }, { 0xAA7C, 0xAA7F }, { 0xAAC3, 0xAADA },
{ 0xAAF7, 0xAB00 }, { 0xAB07, 0xAB08 }, { 0xAB0F, 0xAB10 },
{ 0xAB17, 0xAB1F }, { 0xAB27, 0xAB27 }, { 0xAB2F, 0xABBF },
{ 0xABEE, 0xABEF }, { 0xABFA, 0xABFF }, { 0xD7A4, 0xD7AF },
{ 0xD7C7, 0xD7CA }, { 0xD7FC, 0xDFFF }, { 0xFA6E, 0xFA6F },
{ 0xFADA, 0xFAFF }, { 0xFB07, 0xFB12 }, { 0xFB18, 0xFB1C },
{ 0xFB37, 0xFB37 }, { 0xFB3D, 0xFB3D }, { 0xFB3F, 0xFB3F },
{ 0xFB42, 0xFB42 }, { 0xFB45, 0xFB45 }, { 0xFBC2, 0xFBD2 },
{ 0xFD40, 0xFD4F }, { 0xFD90, 0xFD91 }, { 0xFDC8, 0xFDEF },
{ 0xFDFE, 0xFE0F }, { 0xFE1A, 0xFE1F }, { 0xFE27, 0xFE2F },
{ 0xFE53, 0xFE53 }, { 0xFE67, 0xFE67 }, { 0xFE6C, 0xFE6F },
{ 0xFE75, 0xFE75 }, { 0xFEFD, 0xFEFF }, { 0xFF00, 0xFF00 },
{ 0xFFA0, 0xFFA0 }, { 0xFFBF, 0xFFC1 }, { 0xFFC8, 0xFFC9 },
{ 0xFFD0, 0xFFD1 }, { 0xFFD8, 0xFFD9 }, { 0xFFDD, 0xFFDF },
{ 0xFFE7, 0xFFE7 }, { 0xFFEF, 0xFFFB }, { 0xFFFE, 0xFFFF },
{ 0x1000C, 0x1000C }, { 0x10027, 0x10027 }, { 0x1003B, 0x1003B },
{ 0x1003E, 0x1003E }, { 0x1004E, 0x1004F }, { 0x1005E, 0x1007F },
{ 0x100FB, 0x100FF }, { 0x10103, 0x10106 }, { 0x10134, 0x10136 },
{ 0x1018B, 0x1018F }, { 0x1019C, 0x101CF }, { 0x101FE, 0x1027F },
{ 0x1029D, 0x1029F }, { 0x102D1, 0x102FF }, { 0x1031F, 0x1031F },
{ 0x10324, 0x1032F }, { 0x1034B, 0x1037F }, { 0x1039E, 0x1039E },
{ 0x103C4, 0x103C7 }, { 0x103D6, 0x103FF }, { 0x1049E, 0x1049F },
{ 0x104AA, 0x107FF }, { 0x10806, 0x10807 }, { 0x10809, 0x10809 },
{ 0x10836, 0x10836 }, { 0x10839, 0x1083B }, { 0x1083D, 0x1083E },
{ 0x10856, 0x10856 }, { 0x10860, 0x108FF }, { 0x1091C, 0x1091E },
{ 0x1093A, 0x1093E }, { 0x10940, 0x1097F }, { 0x109B8, 0x109BD },
{ 0x109C0, 0x109FF }, { 0x10A04, 0x10A04 }, { 0x10A07, 0x10A0B },
{ 0x10A14, 0x10A14 }, { 0x10A18, 0x10A18 }, { 0x10A34, 0x10A37 },
{ 0x10A3B, 0x10A3E }, { 0x10A48, 0x10A4F }, { 0x10A59, 0x10A5F },
{ 0x10A80, 0x10AFF }, { 0x10B36, 0x10B38 }, { 0x10B56, 0x10B57 },
{ 0x10B73, 0x10B77 }, { 0x10B80, 0x10BFF }, { 0x10C49, 0x10E5F },
{ 0x10E7F, 0x10FFF }, { 0x1104E, 0x11051 }, { 0x11070, 0x1107F },
{ 0x110BD, 0x110BD }, { 0x110C2, 0x110CF }, { 0x110E9, 0x110EF },
{ 0x110FA, 0x110FF }, { 0x11135, 0x11135 }, { 0x11144, 0x1117F },
{ 0x111C9, 0x111CF }, { 0x111DA, 0x1167F }, { 0x116B8, 0x116BF },
{ 0x116CA, 0x11FFF }, { 0x1236F, 0x123FF }, { 0x12463, 0x1246F },
{ 0x12474, 0x12FFF }, { 0x1342F, 0x167FF }, { 0x16A39, 0x16EFF },
{ 0x16F45, 0x16F4F }, { 0x16F7F, 0x16F8E }, { 0x16FA0, 0x1AFFF },
{ 0x1B002, 0x1CFFF }, { 0x1D0F6, 0x1D0FF }, { 0x1D127, 0x1D128 },
{ 0x1D173, 0x1D17A }, { 0x1D1DE, 0x1D1FF }, { 0x1D246, 0x1D2FF },
{ 0x1D357, 0x1D35F }, { 0x1D372, 0x1D3FF }, { 0x1D455, 0x1D455 },
{ 0x1D49D, 0x1D49D }, { 0x1D4A0, 0x1D4A1 }, { 0x1D4A3, 0x1D4A4 },
{ 0x1D4A7, 0x1D4A8 }, { 0x1D4AD, 0x1D4AD }, { 0x1D4BA, 0x1D4BA },
{ 0x1D4BC, 0x1D4BC }, { 0x1D4C4, 0x1D4C4 }, { 0x1D506, 0x1D506 },
{ 0x1D50B, 0x1D50C }, { 0x1D515, 0x1D515 }, { 0x1D51D, 0x1D51D },
{ 0x1D53A, 0x1D53A }, { 0x1D53F, 0x1D53F }, { 0x1D545, 0x1D545 },
{ 0x1D547, 0x1D549 }, { 0x1D551, 0x1D551 }, { 0x1D6A6, 0x1D6A7 },
{ 0x1D7CC, 0x1D7CD }, { 0x1D800, 0x1EDFF }, { 0x1EE04, 0x1EE04 },
{ 0x1EE20, 0x1EE20 }, { 0x1EE23, 0x1EE23 }, { 0x1EE25, 0x1EE26 },
{ 0x1EE28, 0x1EE28 }, { 0x1EE33, 0x1EE33 }, { 0x1EE38, 0x1EE38 },
{ 0x1EE3A, 0x1EE3A }, { 0x1EE3C, 0x1EE41 }, { 0x1EE43, 0x1EE46 },
{ 0x1EE48, 0x1EE48 }, { 0x1EE4A, 0x1EE4A }, { 0x1EE4C, 0x1EE4C },
{ 0x1EE50, 0x1EE50 }, { 0x1EE53, 0x1EE53 }, { 0x1EE55, 0x1EE56 },
{ 0x1EE58, 0x1EE58 }, { 0x1EE5A, 0x1EE5A }, { 0x1EE5C, 0x1EE5C },
{ 0x1EE5E, 0x1EE5E }, { 0x1EE60, 0x1EE60 }, { 0x1EE63, 0x1EE63 },
{ 0x1EE65, 0x1EE66 }, { 0x1EE6B, 0x1EE6B }, { 0x1EE73, 0x1EE73 },
{ 0x1EE78, 0x1EE78 }, { 0x1EE7D, 0x1EE7D }, { 0x1EE7F, 0x1EE7F },
{ 0x1EE8A, 0x1EE8A }, { 0x1EE9C, 0x1EEA0 }, { 0x1EEA4, 0x1EEA4 },
{ 0x1EEAA, 0x1EEAA }, { 0x1EEBC, 0x1EEEF }, { 0x1EEF2, 0x1EFFF },
{ 0x1F02C, 0x1F02F }, { 0x1F094, 0x1F09F }, { 0x1F0AF, 0x1F0B0 },
{ 0x1F0BF, 0x1F0C0 }, { 0x1F0D0, 0x1F0D0 }, { 0x1F0E0, 0x1F0FF },
{ 0x1F10B, 0x1F10F }, { 0x1F12F, 0x1F12F }, { 0x1F16C, 0x1F16F },
{ 0x1F19B, 0x1F1E5 }, { 0x1F203, 0x1F20F }, { 0x1F23B, 0x1F23F },
{ 0x1F249, 0x1F24F }, { 0x1F252, 0x1F2FF }, { 0x1F321, 0x1F32F },
{ 0x1F336, 0x1F336 }, { 0x1F37D, 0x1F37F }, { 0x1F394, 0x1F39F },
{ 0x1F3C5, 0x1F3C5 }, { 0x1F3CB, 0x1F3DF }, { 0x1F3F1, 0x1F3FF },
{ 0x1F43F, 0x1F43F }, { 0x1F441, 0x1F441 }, { 0x1F4F8, 0x1F4F8 },
{ 0x1F4FD, 0x1F4FF }, { 0x1F53E, 0x1F53F }, { 0x1F544, 0x1F54F },
{ 0x1F568, 0x1F5FA }, { 0x1F641, 0x1F644 }, { 0x1F650, 0x1F67F },
{ 0x1F6C6, 0x1F6FF }, { 0x1F774, 0x1FFFF }, { 0x2A6D7, 0x2A6FF },
{ 0x2B735, 0x2B73F }, { 0x2B81E, 0x2F7FF }, { 0x2FA1E, 0xF0000 },
{ 0xFFFFE, 0xFFFFF }, { 0x10FFFE, 0x10FFFF }
};
static const UnicodeCharSet NonPrintables(NonPrintableRanges);
return UCS >= 0 && UCS <= 0x10FFFF && !NonPrintables.contains(UCS);
}
/// Gets the number of positions a character is likely to occupy when output
/// on a terminal ("character width"). This depends on the implementation of the
/// terminal, and there's no standard definition of character width.
/// The implementation defines it in a way that is expected to be compatible
/// with a generic Unicode-capable terminal.
/// \return Character width:
/// * ErrorNonPrintableCharacter (-1) for non-printable characters (as
/// identified by isPrintable);
/// * 0 for non-spacing and enclosing combining marks;
/// * 2 for CJK characters excluding halfwidth forms;
/// * 1 for all remaining characters.
static inline int charWidth(int UCS)
{
if (!isPrintable(UCS))
return ErrorNonPrintableCharacter;
// Sorted list of non-spacing and enclosing combining mark intervals as
// defined in "3.6 Combination" of
// http://www.unicode.org/versions/Unicode6.2.0/UnicodeStandard-6.2.pdf
static const UnicodeCharRange CombiningCharacterRanges[] = {
{ 0x0300, 0x036F }, { 0x0483, 0x0489 }, { 0x0591, 0x05BD },
{ 0x05BF, 0x05BF }, { 0x05C1, 0x05C2 }, { 0x05C4, 0x05C5 },
{ 0x05C7, 0x05C7 }, { 0x0610, 0x061A }, { 0x064B, 0x065F },
{ 0x0670, 0x0670 }, { 0x06D6, 0x06DC }, { 0x06DF, 0x06E4 },
{ 0x06E7, 0x06E8 }, { 0x06EA, 0x06ED }, { 0x0711, 0x0711 },
{ 0x0730, 0x074A }, { 0x07A6, 0x07B0 }, { 0x07EB, 0x07F3 },
{ 0x0816, 0x0819 }, { 0x081B, 0x0823 }, { 0x0825, 0x0827 },
{ 0x0829, 0x082D }, { 0x0859, 0x085B }, { 0x08E4, 0x08FE },
{ 0x0900, 0x0902 }, { 0x093A, 0x093A }, { 0x093C, 0x093C },
{ 0x0941, 0x0948 }, { 0x094D, 0x094D }, { 0x0951, 0x0957 },
{ 0x0962, 0x0963 }, { 0x0981, 0x0981 }, { 0x09BC, 0x09BC },
{ 0x09C1, 0x09C4 }, { 0x09CD, 0x09CD }, { 0x09E2, 0x09E3 },
{ 0x0A01, 0x0A02 }, { 0x0A3C, 0x0A3C }, { 0x0A41, 0x0A42 },
{ 0x0A47, 0x0A48 }, { 0x0A4B, 0x0A4D }, { 0x0A51, 0x0A51 },
{ 0x0A70, 0x0A71 }, { 0x0A75, 0x0A75 }, { 0x0A81, 0x0A82 },
{ 0x0ABC, 0x0ABC }, { 0x0AC1, 0x0AC5 }, { 0x0AC7, 0x0AC8 },
{ 0x0ACD, 0x0ACD }, { 0x0AE2, 0x0AE3 }, { 0x0B01, 0x0B01 },
{ 0x0B3C, 0x0B3C }, { 0x0B3F, 0x0B3F }, { 0x0B41, 0x0B44 },
{ 0x0B4D, 0x0B4D }, { 0x0B56, 0x0B56 }, { 0x0B62, 0x0B63 },
{ 0x0B82, 0x0B82 }, { 0x0BC0, 0x0BC0 }, { 0x0BCD, 0x0BCD },
{ 0x0C3E, 0x0C40 }, { 0x0C46, 0x0C48 }, { 0x0C4A, 0x0C4D },
{ 0x0C55, 0x0C56 }, { 0x0C62, 0x0C63 }, { 0x0CBC, 0x0CBC },
{ 0x0CBF, 0x0CBF }, { 0x0CC6, 0x0CC6 }, { 0x0CCC, 0x0CCD },
{ 0x0CE2, 0x0CE3 }, { 0x0D41, 0x0D44 }, { 0x0D4D, 0x0D4D },
{ 0x0D62, 0x0D63 }, { 0x0DCA, 0x0DCA }, { 0x0DD2, 0x0DD4 },
{ 0x0DD6, 0x0DD6 }, { 0x0E31, 0x0E31 }, { 0x0E34, 0x0E3A },
{ 0x0E47, 0x0E4E }, { 0x0EB1, 0x0EB1 }, { 0x0EB4, 0x0EB9 },
{ 0x0EBB, 0x0EBC }, { 0x0EC8, 0x0ECD }, { 0x0F18, 0x0F19 },
{ 0x0F35, 0x0F35 }, { 0x0F37, 0x0F37 }, { 0x0F39, 0x0F39 },
{ 0x0F71, 0x0F7E }, { 0x0F80, 0x0F84 }, { 0x0F86, 0x0F87 },
{ 0x0F8D, 0x0F97 }, { 0x0F99, 0x0FBC }, { 0x0FC6, 0x0FC6 },
{ 0x102D, 0x1030 }, { 0x1032, 0x1037 }, { 0x1039, 0x103A },
{ 0x103D, 0x103E }, { 0x1058, 0x1059 }, { 0x105E, 0x1060 },
{ 0x1071, 0x1074 }, { 0x1082, 0x1082 }, { 0x1085, 0x1086 },
{ 0x108D, 0x108D }, { 0x109D, 0x109D }, { 0x135D, 0x135F },
{ 0x1712, 0x1714 }, { 0x1732, 0x1734 }, { 0x1752, 0x1753 },
{ 0x1772, 0x1773 }, { 0x17B4, 0x17B5 }, { 0x17B7, 0x17BD },
{ 0x17C6, 0x17C6 }, { 0x17C9, 0x17D3 }, { 0x17DD, 0x17DD },
{ 0x180B, 0x180D }, { 0x18A9, 0x18A9 }, { 0x1920, 0x1922 },
{ 0x1927, 0x1928 }, { 0x1932, 0x1932 }, { 0x1939, 0x193B },
{ 0x1A17, 0x1A18 }, { 0x1A56, 0x1A56 }, { 0x1A58, 0x1A5E },
{ 0x1A60, 0x1A60 }, { 0x1A62, 0x1A62 }, { 0x1A65, 0x1A6C },
{ 0x1A73, 0x1A7C }, { 0x1A7F, 0x1A7F }, { 0x1B00, 0x1B03 },
{ 0x1B34, 0x1B34 }, { 0x1B36, 0x1B3A }, { 0x1B3C, 0x1B3C },
{ 0x1B42, 0x1B42 }, { 0x1B6B, 0x1B73 }, { 0x1B80, 0x1B81 },
{ 0x1BA2, 0x1BA5 }, { 0x1BA8, 0x1BA9 }, { 0x1BAB, 0x1BAB },
{ 0x1BE6, 0x1BE6 }, { 0x1BE8, 0x1BE9 }, { 0x1BED, 0x1BED },
{ 0x1BEF, 0x1BF1 }, { 0x1C2C, 0x1C33 }, { 0x1C36, 0x1C37 },
{ 0x1CD0, 0x1CD2 }, { 0x1CD4, 0x1CE0 }, { 0x1CE2, 0x1CE8 },
{ 0x1CED, 0x1CED }, { 0x1CF4, 0x1CF4 }, { 0x1DC0, 0x1DE6 },
{ 0x1DFC, 0x1DFF }, { 0x20D0, 0x20F0 }, { 0x2CEF, 0x2CF1 },
{ 0x2D7F, 0x2D7F }, { 0x2DE0, 0x2DFF }, { 0x302A, 0x302D },
{ 0x3099, 0x309A }, { 0xA66F, 0xA672 }, { 0xA674, 0xA67D },
{ 0xA69F, 0xA69F }, { 0xA6F0, 0xA6F1 }, { 0xA802, 0xA802 },
{ 0xA806, 0xA806 }, { 0xA80B, 0xA80B }, { 0xA825, 0xA826 },
{ 0xA8C4, 0xA8C4 }, { 0xA8E0, 0xA8F1 }, { 0xA926, 0xA92D },
{ 0xA947, 0xA951 }, { 0xA980, 0xA982 }, { 0xA9B3, 0xA9B3 },
{ 0xA9B6, 0xA9B9 }, { 0xA9BC, 0xA9BC }, { 0xAA29, 0xAA2E },
{ 0xAA31, 0xAA32 }, { 0xAA35, 0xAA36 }, { 0xAA43, 0xAA43 },
{ 0xAA4C, 0xAA4C }, { 0xAAB0, 0xAAB0 }, { 0xAAB2, 0xAAB4 },
{ 0xAAB7, 0xAAB8 }, { 0xAABE, 0xAABF }, { 0xAAC1, 0xAAC1 },
{ 0xAAEC, 0xAAED }, { 0xAAF6, 0xAAF6 }, { 0xABE5, 0xABE5 },
{ 0xABE8, 0xABE8 }, { 0xABED, 0xABED }, { 0xFB1E, 0xFB1E },
{ 0xFE00, 0xFE0F }, { 0xFE20, 0xFE26 }, { 0x101FD, 0x101FD },
{ 0x10A01, 0x10A03 }, { 0x10A05, 0x10A06 }, { 0x10A0C, 0x10A0F },
{ 0x10A38, 0x10A3A }, { 0x10A3F, 0x10A3F }, { 0x11001, 0x11001 },
{ 0x11038, 0x11046 }, { 0x11080, 0x11081 }, { 0x110B3, 0x110B6 },
{ 0x110B9, 0x110BA }, { 0x11100, 0x11102 }, { 0x11127, 0x1112B },
{ 0x1112D, 0x11134 }, { 0x11180, 0x11181 }, { 0x111B6, 0x111BE },
{ 0x116AB, 0x116AB }, { 0x116AD, 0x116AD }, { 0x116B0, 0x116B5 },
{ 0x116B7, 0x116B7 }, { 0x16F8F, 0x16F92 }, { 0x1D167, 0x1D169 },
{ 0x1D17B, 0x1D182 }, { 0x1D185, 0x1D18B }, { 0x1D1AA, 0x1D1AD },
{ 0x1D242, 0x1D244 }, { 0xE0100, 0xE01EF },
};
static const UnicodeCharSet CombiningCharacters(CombiningCharacterRanges);
if (CombiningCharacters.contains(UCS))
return 0;
static const UnicodeCharRange DoubleWidthCharacterRanges[] = {
// Hangul Jamo
{ 0x1100, 0x11FF },
// Deprecated fullwidth angle brackets
{ 0x2329, 0x232A },
// CJK Misc, CJK Unified Ideographs, Yijing Hexagrams, Yi
// excluding U+303F (IDEOGRAPHIC HALF FILL SPACE)
{ 0x2E80, 0x303E }, { 0x3040, 0xA4CF },
// Hangul
{ 0xAC00, 0xD7A3 }, { 0xD7B0, 0xD7C6 }, { 0xD7CB, 0xD7FB },
// CJK Unified Ideographs
{ 0xF900, 0xFAFF },
// Vertical forms
{ 0xFE10, 0xFE19 },
// CJK Compatibility Forms + Small Form Variants
{ 0xFE30, 0xFE6F },
// Fullwidth forms
{ 0xFF01, 0xFF60 }, { 0xFFE0, 0xFFE6 },
// CJK Unified Ideographs
{ 0x20000, 0x2A6DF }, { 0x2A700, 0x2B81F }, { 0x2F800, 0x2FA1F }
};
static const UnicodeCharSet DoubleWidthCharacters(DoubleWidthCharacterRanges);
if (DoubleWidthCharacters.contains(UCS))
return 2;
return 1;
}
int columnWidthUTF8(StringRef Text) {
unsigned ColumnWidth = 0;
unsigned Length;
for (size_t i = 0, e = Text.size(); i < e; i += Length) {
Length = getNumBytesForUTF8(Text[i]);
if (Length <= 0 || i + Length > Text.size())
return ErrorInvalidUTF8;
UTF32 buf[1];
const UTF8 *Start = reinterpret_cast<const UTF8 *>(Text.data() + i);
UTF32 *Target = &buf[0];
if (conversionOK != ConvertUTF8toUTF32(&Start, Start + Length, &Target,
Target + 1, strictConversion))
return ErrorInvalidUTF8;
int Width = charWidth(buf[0]);
if (Width < 0)
return ErrorNonPrintableCharacter;
ColumnWidth += Width;
}
return ColumnWidth;
}
} // namespace unicode
} // namespace sys
} // namespace llvm