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//===- unittests/Support/UnicodeTest.cpp - Unicode.h tests ----------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/Unicode.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/edit_distance.h"
#include "llvm/Support/ConvertUTF.h"
#include "gmock/gmock.h"
#include "gtest/gtest.h"
namespace llvm {
namespace sys {
namespace unicode {
namespace {
TEST(Unicode, columnWidthUTF8) {
EXPECT_EQ(0, columnWidthUTF8(""));
EXPECT_EQ(1, columnWidthUTF8(" "));
EXPECT_EQ(1, columnWidthUTF8("a"));
EXPECT_EQ(1, columnWidthUTF8("~"));
EXPECT_EQ(6, columnWidthUTF8("abcdef"));
EXPECT_EQ(-1, columnWidthUTF8("\x01"));
EXPECT_EQ(-1, columnWidthUTF8("\t"));
EXPECT_EQ(-1, columnWidthUTF8("aaaaaaaaaa\x01"));
EXPECT_EQ(-1, columnWidthUTF8("\342\200\213")); // 200B ZERO WIDTH SPACE
// 00AD SOFT HYPHEN is displayed on most terminals as a space or a dash. Some
// text editors display it only when a line is broken at it, some use it as a
// line-break hint, but don't display. We choose terminal-oriented
// interpretation.
EXPECT_EQ(1, columnWidthUTF8("\302\255"));
EXPECT_EQ(0, columnWidthUTF8("\314\200")); // 0300 COMBINING GRAVE ACCENT
EXPECT_EQ(1, columnWidthUTF8("\340\270\201")); // 0E01 THAI CHARACTER KO KAI
EXPECT_EQ(2, columnWidthUTF8("\344\270\200")); // CJK UNIFIED IDEOGRAPH-4E00
EXPECT_EQ(4, columnWidthUTF8("\344\270\200\344\270\200"));
EXPECT_EQ(3, columnWidthUTF8("q\344\270\200"));
EXPECT_EQ(3, columnWidthUTF8("\314\200\340\270\201\344\270\200"));
EXPECT_EQ(2, columnWidthUTF8("\342\214\232")); // U+231A WATCH (emoji)
EXPECT_EQ(2, columnWidthUTF8("\360\237\253\233")); // U+1FADB PEA POD (Unicode 15 emoji)
EXPECT_EQ(2, columnWidthUTF8("\360\233\204\262")); // U+1B132 HIRAGANA LETTER SMALL KO
EXPECT_EQ(2, columnWidthUTF8("\360\227\201\202")); // U+17042 TANGUT IDEOGRAPH
// Invalid UTF-8 strings, columnWidthUTF8 should error out.
EXPECT_EQ(-2, columnWidthUTF8("\344"));
EXPECT_EQ(-2, columnWidthUTF8("\344\270"));
EXPECT_EQ(-2, columnWidthUTF8("\344\270\033"));
EXPECT_EQ(-2, columnWidthUTF8("\344\270\300"));
EXPECT_EQ(-2, columnWidthUTF8("\377\366\355"));
EXPECT_EQ(-2, columnWidthUTF8("qwer\344"));
EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270"));
EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270\033"));
EXPECT_EQ(-2, columnWidthUTF8("qwer\344\270\300"));
EXPECT_EQ(-2, columnWidthUTF8("qwer\377\366\355"));
// UTF-8 sequences longer than 4 bytes correspond to unallocated Unicode
// characters.
EXPECT_EQ(-2, columnWidthUTF8("\370\200\200\200\200")); // U+200000
EXPECT_EQ(-2, columnWidthUTF8("\374\200\200\200\200\200")); // U+4000000
}
TEST(Unicode, isPrintable) {
EXPECT_FALSE(isPrintable(0)); // <control-0000>-<control-001F>
EXPECT_FALSE(isPrintable(0x01));
EXPECT_FALSE(isPrintable(0x1F));
EXPECT_TRUE(isPrintable(' '));
EXPECT_TRUE(isPrintable('A'));
EXPECT_TRUE(isPrintable('~'));
EXPECT_FALSE(isPrintable(0x7F)); // <control-007F>..<control-009F>
EXPECT_FALSE(isPrintable(0x90));
EXPECT_FALSE(isPrintable(0x9F));
EXPECT_TRUE(isPrintable(0xAC));
EXPECT_TRUE(isPrintable(0xAD)); // SOFT HYPHEN is displayed on most terminals
// as either a space or a dash.
EXPECT_TRUE(isPrintable(0xAE));
EXPECT_TRUE(isPrintable(0x0377)); // GREEK SMALL LETTER PAMPHYLIAN DIGAMMA
EXPECT_FALSE(isPrintable(0x0378)); // <reserved-0378>..<reserved-0379>
EXPECT_FALSE(isPrintable(0x0600)); // ARABIC NUMBER SIGN
EXPECT_FALSE(isPrintable(0x1FFFF)); // <reserved-1F774>..<noncharacter-1FFFF>
EXPECT_TRUE(isPrintable(0x20000)); // CJK UNIFIED IDEOGRAPH-20000
EXPECT_FALSE(isPrintable(0x10FFFF)); // noncharacter
// test the validity of a fast path in columnWidthUTF8
for (unsigned char c = 0; c < 128; ++c) {
const UTF8 buf8[2] = {c, 0};
const UTF8 *Target8 = &buf8[0];
UTF32 buf32[1];
UTF32 *Target32 = &buf32[0];
auto status = ConvertUTF8toUTF32(&Target8, Target8 + 1, &Target32,
Target32 + 1, strictConversion);
EXPECT_EQ(status, conversionOK);
EXPECT_EQ((columnWidthUTF8(reinterpret_cast<const char *>(buf8)) == 1),
(bool)isPrintable(buf32[0]));
}
}
TEST(Unicode, nameToCodepointStrict) {
auto map = [](StringRef Str) {
return nameToCodepointStrict(Str).value_or(0xFFFF'FFFF);
};
// generated codepoints
EXPECT_EQ(0x03400u, map("CJK UNIFIED IDEOGRAPH-3400"));
EXPECT_EQ(0x04DBFu, map("CJK UNIFIED IDEOGRAPH-4DBF"));
EXPECT_EQ(0x04E00u, map("CJK UNIFIED IDEOGRAPH-4E00"));
EXPECT_EQ(0x09FFCu, map("CJK UNIFIED IDEOGRAPH-9FFC"));
EXPECT_EQ(0x20000u, map("CJK UNIFIED IDEOGRAPH-20000"));
EXPECT_EQ(0x2A6DDu, map("CJK UNIFIED IDEOGRAPH-2A6DD"));
EXPECT_EQ(0x2A700u, map("CJK UNIFIED IDEOGRAPH-2A700"));
EXPECT_EQ(0x2B740u, map("CJK UNIFIED IDEOGRAPH-2B740"));
EXPECT_EQ(0x2B81Du, map("CJK UNIFIED IDEOGRAPH-2B81D"));
EXPECT_EQ(0x2B820u, map("CJK UNIFIED IDEOGRAPH-2B820"));
EXPECT_EQ(0x2CEA1u, map("CJK UNIFIED IDEOGRAPH-2CEA1"));
EXPECT_EQ(0x2CEB0u, map("CJK UNIFIED IDEOGRAPH-2CEB0"));
EXPECT_EQ(0x2EBE0u, map("CJK UNIFIED IDEOGRAPH-2EBE0"));
EXPECT_EQ(0x30000u, map("CJK UNIFIED IDEOGRAPH-30000"));
EXPECT_EQ(0x3134Au, map("CJK UNIFIED IDEOGRAPH-3134A"));
EXPECT_EQ(0x17000u, map("TANGUT IDEOGRAPH-17000"));
EXPECT_EQ(0x187F7u, map("TANGUT IDEOGRAPH-187F7"));
EXPECT_EQ(0x18D00u, map("TANGUT IDEOGRAPH-18D00"));
EXPECT_EQ(0x18D08u, map("TANGUT IDEOGRAPH-18D08"));
EXPECT_EQ(0x18B00u, map("KHITAN SMALL SCRIPT CHARACTER-18B00"));
EXPECT_EQ(0x18CD5u, map("KHITAN SMALL SCRIPT CHARACTER-18CD5"));
EXPECT_EQ(0x1B170u, map("NUSHU CHARACTER-1B170"));
EXPECT_EQ(0x1B2FBu, map("NUSHU CHARACTER-1B2FB"));
EXPECT_EQ(0x0F900u, map("CJK COMPATIBILITY IDEOGRAPH-F900"));
EXPECT_EQ(0x0FA6Du, map("CJK COMPATIBILITY IDEOGRAPH-FA6D"));
EXPECT_EQ(0x0FA70u, map("CJK COMPATIBILITY IDEOGRAPH-FA70"));
EXPECT_EQ(0x0FAD9u, map("CJK COMPATIBILITY IDEOGRAPH-FAD9"));
EXPECT_EQ(0x2F800u, map("CJK COMPATIBILITY IDEOGRAPH-2F800"));
EXPECT_EQ(0x2FA1Du, map("CJK COMPATIBILITY IDEOGRAPH-2FA1D"));
EXPECT_EQ(0x31350u, map("CJK UNIFIED IDEOGRAPH-31350")); // Unicode 15.0
EXPECT_EQ(0x2EBF0u, map("CJK UNIFIED IDEOGRAPH-2EBF0")); // Unicode 15.1
EXPECT_EQ(0xAC00u, map("HANGUL SYLLABLE GA"));
EXPECT_EQ(0xAC14u, map("HANGUL SYLLABLE GASS"));
EXPECT_EQ(0xAC2Bu, map("HANGUL SYLLABLE GAELH"));
EXPECT_EQ(0xAC7Bu, map("HANGUL SYLLABLE GEOLB"));
EXPECT_EQ(0xC640u, map("HANGUL SYLLABLE WA"));
EXPECT_EQ(0xC544u, map("HANGUL SYLLABLE A"));
EXPECT_EQ(0xC5D0u, map("HANGUL SYLLABLE E"));
EXPECT_EQ(0xC774u, map("HANGUL SYLLABLE I"));
EXPECT_EQ(0x1F984u, map("UNICORN FACE"));
EXPECT_EQ(0x00640u, map("ARABIC TATWEEL"));
EXPECT_EQ(0x02C05u, map("GLAGOLITIC CAPITAL LETTER YESTU"));
EXPECT_EQ(0x13000u, map("EGYPTIAN HIEROGLYPH A001"));
EXPECT_EQ(0x02235u, map("BECAUSE"));
EXPECT_EQ(0x1F514u, map("BELL"));
EXPECT_EQ(0x1F9A9u, map("FLAMINGO"));
EXPECT_EQ(0x1F9A9u, map("FLAMINGO"));
EXPECT_EQ(0x1F402u, map("OX")); // 2 characters
EXPECT_EQ(0x0FBF9u, map("ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA "
"ABOVE WITH ALEF MAKSURA ISOLATED FORM"));
EXPECT_EQ(0x11F04u, map("KAWI LETTER A")); // Unicode 15.0
EXPECT_EQ(0x1FA77u, map("PINK HEART")); // Unicode 15.0
EXPECT_EQ(0x2FFFu,
map("IDEOGRAPHIC DESCRIPTION CHARACTER ROTATION")); // Unicode 15.1
// Aliases
EXPECT_EQ(0x0000u, map("NULL"));
EXPECT_EQ(0x0007u, map("ALERT"));
EXPECT_EQ(0x0009u, map("HORIZONTAL TABULATION"));
EXPECT_EQ(0x0009u, map("CHARACTER TABULATION"));
EXPECT_EQ(0x000Au, map("LINE FEED"));
EXPECT_EQ(0x000Au, map("NEW LINE"));
EXPECT_EQ(0x0089u, map("CHARACTER TABULATION WITH JUSTIFICATION"));
EXPECT_EQ(0x0089u, map("HORIZONTAL TABULATION WITH JUSTIFICATION"));
EXPECT_EQ(0x2118u,
map("WEIERSTRASS ELLIPTIC FUNCTION")); // correction
EXPECT_EQ(0x2118u, map("SCRIPT CAPITAL P")); // correction
EXPECT_EQ(0xFEFFu, map("BYTE ORDER MARK")); // alternate
EXPECT_EQ(0xFEFFu, map("ZERO WIDTH NO-BREAK SPACE")); // alternate
// Should perform exact case match
EXPECT_EQ(0xFFFFFFFFu, map(""));
EXPECT_EQ(0xFFFFFFFFu, map("NOT A UNICODE CHARACTER"));
EXPECT_EQ(0xFFFFFFFFu, map("unicorn face"));
EXPECT_EQ(0xFFFFFFFFu, map("UNICORN FaCE"));
EXPECT_EQ(0xFFFFFFFFu, map("UNICORNFaCE"));
EXPECT_EQ(0xFFFFFFFFu, map("UNICORN"));
EXPECT_EQ(0xFFFFFFFFu, map("HANGUL SYLLABLE i"));
EXPECT_EQ(0xFFFFFFFFu, map("hANGUL SYLLABLE i"));
EXPECT_EQ(0xFFFFFFFFu, map("HANGULSYLLABLEI"));
EXPECT_EQ(0xFFFFFFFFu, map("HANGUL SYLLABLE"));
EXPECT_EQ(0xFFFFFFFFu, map("cJK COMPATIBILITY IDEOGRAPH-2FA1D"));
EXPECT_EQ(0xFFFFFFFFu, map("CJK COMPATIBILITY IDEOGRAPH-2FA1d"));
EXPECT_EQ(0xFFFFFFFFu, map("CJK COMPATIBILITY IDEOGRAPH 2FA1D"));
EXPECT_EQ(0xFFFFFFFF, map("CJK COMPATIBILITY IDEOGRAPH-NOTANUMBER"));
EXPECT_EQ(0xFFFFFFFFu, map("CJK COMPATIBILITY IDEOGRAPH-1"));
EXPECT_EQ(0xFFFFFFFFu, map("ZERO WIDTH NO BREAK SPACE"));
// Should not support abbreviations or figments
EXPECT_EQ(0xFFFFFFFFu, map("FVS1"));
EXPECT_EQ(0xFFFFFFFFu, map("HIGH OCTET PRESET"));
EXPECT_EQ(0xFFFFFFFFu, map("BEL"));
}
TEST(Unicode, nameToCodepointLoose) {
auto map = [](StringRef Str) {
auto Opt = nameToCodepointLooseMatching(Str);
if (!Opt)
return char32_t(0xFFFF'FFFF);
return Opt->CodePoint;
};
// generated codepoints
EXPECT_EQ(0x04DBFu, map("CJK UNIFIED IDEOGRAPH-4DBF"));
EXPECT_EQ(0x04E00u, map("CJK UNIFIED IDEOGRAPH-4E00"));
EXPECT_EQ(0x09FFCu, map("CJK UNIFIED IDEOGRAPH-9FFC"));
EXPECT_EQ(0x20000u, map("CJK UNIFIED IDEOGRAPH-20000"));
EXPECT_EQ(0x2A6DDu, map("CJK UNIFIED IDEOGRAPH-2A6DD"));
EXPECT_EQ(0x2A700u, map("CJK UNIFIED IDEOGRAPH-2A700"));
EXPECT_EQ(0x2B740u, map("CJK UNIFIED IDEOGRAPH-2B740"));
EXPECT_EQ(0x03400u, map("CJK UNIFIED IDEOGRAPH-3400"));
EXPECT_EQ(0x2B81Du, map("CJK UNIFIED IDEOGRAPH-2B81D"));
EXPECT_EQ(0x2B820u, map("CJK UNIFIED IDEOGRAPH-2B820"));
EXPECT_EQ(0x2CEA1u, map("CJK UNIFIED IDEOGRAPH-2CEA1"));
EXPECT_EQ(0x2CEB0u, map("CJK UNIFIED IDEOGRAPH-2CEB0"));
EXPECT_EQ(0x2EBE0u, map("CJK UNIFIED IDEOGRAPH-2EBE0"));
EXPECT_EQ(0x30000u, map("CJK UNIFIED IDEOGRAPH-30000"));
EXPECT_EQ(0x3134Au, map("CJK UNIFIED IDEOGRAPH-3134A"));
EXPECT_EQ(0x17000u, map("TANGUT IDEOGRAPH-17000"));
EXPECT_EQ(0x187F7u, map("TANGUT IDEOGRAPH-187F7"));
EXPECT_EQ(0x18D00u, map("TANGUT IDEOGRAPH-18D00"));
EXPECT_EQ(0x18D08u, map("TANGUT IDEOGRAPH-18D08"));
EXPECT_EQ(0x18B00u, map("KHITAN SMALL SCRIPT CHARACTER-18B00"));
EXPECT_EQ(0x18CD5u, map("KHITAN SMALL SCRIPT CHARACTER-18CD5"));
EXPECT_EQ(0x1B170u, map("NUSHU CHARACTER-1B170"));
EXPECT_EQ(0x1B2FBu, map("NUSHU CHARACTER-1B2FB"));
EXPECT_EQ(0x0F900u, map("CJK COMPATIBILITY IDEOGRAPH-F900"));
EXPECT_EQ(0x0FA6Du, map("CJK COMPATIBILITY IDEOGRAPH-FA6D"));
EXPECT_EQ(0x0FA70u, map("CJK COMPATIBILITY IDEOGRAPH-FA70"));
EXPECT_EQ(0x0FAD9u, map("CJK COMPATIBILITY IDEOGRAPH-FAD9"));
EXPECT_EQ(0x2F800u, map("CJK COMPATIBILITY IDEOGRAPH-2F800"));
EXPECT_EQ(0x2FA1Du, map("CJK COMPATIBILITY IDEOGRAPH-2FA1D"));
EXPECT_EQ(0xAC00u, map("HANGUL SYLLABLE GA"));
EXPECT_EQ(0xAC14u, map("HANGUL SYLLABLE GASS"));
EXPECT_EQ(0xAC2Bu, map("HANGUL SYLLABLE GAELH"));
EXPECT_EQ(0xAC7Bu, map("HANGUL SYLLABLE GEOLB"));
EXPECT_EQ(0xC640u, map("HANGUL SYLLABLE WA"));
EXPECT_EQ(0xC544u, map("HANGUL SYLLABLE A"));
EXPECT_EQ(0xC5D0u, map("HANGUL SYLLABLE E"));
EXPECT_EQ(0xC774u, map("HANGUL SYLLABLE I"));
EXPECT_EQ(0x1F984u, map("UNICORN FACE"));
EXPECT_EQ(0x00640u, map("ARABIC TATWEEL"));
EXPECT_EQ(0x02C05u, map("GLAGOLITIC CAPITAL LETTER YESTU"));
EXPECT_EQ(0x13000u, map("EGYPTIAN HIEROGLYPH A001"));
EXPECT_EQ(0x02235u, map("BECAUSE"));
EXPECT_EQ(0x1F514u, map("BELL"));
EXPECT_EQ(0x1F9A9u, map("FLAMINGO"));
EXPECT_EQ(0x1F402u, map("OX")); // 2 characters
EXPECT_EQ(0x0FBF9u, map("ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA "
"ABOVE WITH ALEF MAKSURA ISOLATED FORM"));
// Aliases
EXPECT_EQ(0x0000u, map("NULL"));
EXPECT_EQ(0x0007u, map("ALERT"));
EXPECT_EQ(0x0009u, map("HORIZONTAL TABULATION"));
EXPECT_EQ(0x0009u, map("CHARACTER TABULATION"));
EXPECT_EQ(0x000Au, map("LINE FEED"));
EXPECT_EQ(0x000Au, map("NEW LINE"));
EXPECT_EQ(0x0089u, map("CHARACTER TABULATION WITH JUSTIFICATION"));
EXPECT_EQ(0x0089u, map("HORIZONTAL TABULATION WITH JUSTIFICATION"));
EXPECT_EQ(0x2118u,
map("WEIERSTRASS ELLIPTIC FUNCTION")); // correction
EXPECT_EQ(0x2118u, map("SCRIPT CAPITAL P")); // correction
EXPECT_EQ(0xFEFFu, map("BYTE ORDER MARK")); // alternate
EXPECT_EQ(0xFEFFu, map("ZERO WIDTH NO-BREAK SPACE")); // alternate
EXPECT_EQ(0xFEFFu, map("ZERO WIDTH NO BREAK SPACE")); // alternate
// Should perform loose matching
EXPECT_EQ(0xFFFFFFFFu, map(""));
EXPECT_EQ(0xFFFFFFFFu, map("NOT A UNICODE CHARACTER"));
EXPECT_EQ(0x0001F984u, map("unicorn face"));
EXPECT_EQ(0x0001F984u, map("UNICORN FaCE"));
EXPECT_EQ(0x0001F984u, map("UNICORNFaCE"));
EXPECT_EQ(0xFFFFFFFFu, map("UNICORN"));
EXPECT_EQ(0xC774u, map("HANGUL SYLLABLE i"));
EXPECT_EQ(0xC774u, map("hANGUL SYLLABLE i"));
EXPECT_EQ(0xC774u, map("HANGULSYLLABLEI"));
EXPECT_EQ(0xFFFFFFFFu, map("HANGUL SYLLABLE"));
EXPECT_EQ(0x2FA1Du, map("cJK COMPATIBILITY IDEOGRAPH-2FA1D"));
EXPECT_EQ(0x2FA1Du, map("CJK COMPATIBILITY IDEOGRAPH-2FA1d"));
EXPECT_EQ(0x2FA1Du, map("CJK COMPATIBILITY IDEOGRAPH 2FA1D"));
EXPECT_EQ(0xFFFFFFFFu, map("CJK COMPATIBILITY IDEOGRAPH-NOTANUMBER"));
EXPECT_EQ(0xFFFFFFFFu, map("CJK COMPATIBILITY IDEOGRAPH-1"));
// https://unicode.org/reports/tr44/#Matching_Names
// UAX44-LM2: Medial hypens are ignored, non medial hyphens are not
EXPECT_EQ(0x1FBC5u, map("S-T-I-C-K-F-I-G-U-R-E"));
EXPECT_EQ(0xFFFFFFFFu, map("-STICK FIGURE"));
EXPECT_EQ(0xFFFFFFFFu, map("STICK FIGURE-"));
EXPECT_EQ(0xFFFFFFFFu, map("STICK FIGURE -"));
EXPECT_EQ(0xFFFFFFFFu, map("STICK FIGURE --"));
EXPECT_EQ(0xFFFFFFFFu, map("STICK--FIGURE"));
EXPECT_EQ(0x0F68u, map("TIBETAN LETTER A"));
EXPECT_EQ(0x0F68u, map("TIBETAN LETTERA"));
EXPECT_EQ(0x0F68u, map("TIBETAN LETTER-A"));
EXPECT_EQ(0x0F60u, map("TIBETAN LETTER -A"));
EXPECT_EQ(0x0F60u, map("TIBETAN LETTER -A"));
// GH64161
EXPECT_EQ(0x202Du, map("LEFT-TO-RIGHT OVERRIDE"));
EXPECT_EQ(0x202Du, map("LEFT TO RIGHT OVERRIDE"));
EXPECT_EQ(0x202Du, map("LEFTTORIGHTOVERRIDE"));
EXPECT_EQ(0x202Du, map("LEFT-TO-RIGHT-OVERRIDE"));
EXPECT_FALSE(nameToCodepointLooseMatching("-LEFT-TO-RIGHT OVERRIDE"));
EXPECT_FALSE(nameToCodepointLooseMatching("LEFT-TO-RIGHT OVERRIDE-"));
// special case
EXPECT_EQ(0x1180u, map("HANGUL JUNGSEONG O-E"));
EXPECT_EQ(0x116Cu, map("HANGUL JUNGSEONG OE"));
// names that are prefix to existing characters should not match
EXPECT_FALSE(nameToCodepointLooseMatching("B"));
EXPECT_FALSE(nameToCodepointLooseMatching("BE"));
EXPECT_FALSE(nameToCodepointLooseMatching("BEE"));
EXPECT_FALSE(nameToCodepointLooseMatching("BEET"));
EXPECT_FALSE(nameToCodepointLooseMatching("BEETL"));
EXPECT_TRUE(nameToCodepointLooseMatching("BEETLE"));
}
} // namespace
bool operator==(MatchForCodepointName a, MatchForCodepointName b) {
return a.Name == b.Name && a.Distance == b.Distance && a.Value == b.Value;
}
namespace {
TEST(Unicode, nearestMatchesForCodepointName) {
auto Normalize = [](StringRef Name) {
std::string Out;
Out.reserve(Name.size());
for (char C : Name) {
if (isAlnum(C))
Out.push_back(toUpper(C));
}
return Out;
};
auto L = [&](StringRef name) {
auto v = nearestMatchesForCodepointName(name, 3);
for (auto &r : v) {
auto A = Normalize(r.Name);
auto B = Normalize(name);
EXPECT_EQ(StringRef(A).edit_distance(B, true), r.Distance);
}
return v;
};
using ::testing::ElementsAre;
using M = MatchForCodepointName;
ASSERT_THAT(L(""), ElementsAre(M{"OX", 2, 0x1F402}, M{"ANT", 3, 0x1F41C},
M{"ARC", 3, 0x2312}));
// shortest name
ASSERT_THAT(L("OX"), ElementsAre(M{"OX", 0, 0x1F402}, M{"AXE", 2, 0x1FA93},
M{"BOY", 2, 0x1F466}));
// longest name
ASSERT_THAT(L("ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA ABOVE WITH ALEF "
"MAKSURA INITIAL FORM"),
ElementsAre(M{"ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA "
"ABOVE WITH ALEF MAKSURA INITIAL FORM",
0, 0xFBFB},
M{"ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA "
"ABOVE WITH ALEF MAKSURA FINAL FORM",
4, 0xFBFA},
M{"ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA "
"ABOVE WITH ALEF MAKSURA ISOLATED FORM",
7, 0xFBF9}));
// same result with underscore, spaces, etc
ASSERT_THAT(L("______ARABICLIGATUREUIGHUR KIRGHIZ YEH with HAMZA ABOVE WITH "
"ALEF MAKsURAINITIAL form_"),
ElementsAre(M{"ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA "
"ABOVE WITH ALEF MAKSURA INITIAL FORM",
0, 0xFBFB},
M{"ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA "
"ABOVE WITH ALEF MAKSURA FINAL FORM",
4, 0xFBFA},
M{"ARABIC LIGATURE UIGHUR KIRGHIZ YEH WITH HAMZA "
"ABOVE WITH ALEF MAKSURA ISOLATED FORM",
7, 0xFBF9}));
ASSERT_THAT(L("GREEK CAPITAL LETTER LAMBDA"),
ElementsAre(M{"GREEK CAPITAL LETTER LAMDA", 1, 0x39B},
M{"GREEK CAPITAL LETTER GAMMA", 3, 0x0393},
M{"GREEK CAPITAL LETTER ALPHA", 4, 0x0391}));
ASSERT_THAT(L("greekcapitalletter-lambda"),
ElementsAre(M{"GREEK CAPITAL LETTER LAMDA", 1, 0x39B},
M{"GREEK CAPITAL LETTER GAMMA", 3, 0x0393},
M{"GREEK CAPITAL LETTER ALPHA", 4, 0x0391}));
// typo http://www.unicode.org/notes/tn27/tn27-5.html
ASSERT_THAT(
L("PRESENTATION FORM FOR VERTICAL RIGHT WHITE LENTICULAR BRAKCET"),
ElementsAre(
M{"PRESENTATION FORM FOR VERTICAL RIGHT WHITE LENTICULAR BRAKCET", 0,
0xFE18}, // typo
M{"PRESENTATION FORM FOR VERTICAL RIGHT WHITE LENTICULAR BRACKET", 2,
0xFE18}, // correction
M{"PRESENTATION FORM FOR VERTICAL LEFT WHITE LENTICULAR BRACKET", 6,
0xFE17}));
// typo http://www.unicode.org/notes/tn27/tn27-5.html
ASSERT_THAT(
L("BYZANTINE MUSICAL SYMBOL FHTORA SKLIRON CHROMA VASIS"),
ElementsAre(
M{"BYZANTINE MUSICAL SYMBOL FHTORA SKLIRON CHROMA VASIS", 0, 0x1D0C5},
M{"BYZANTINE MUSICAL SYMBOL FTHORA SKLIRON CHROMA VASIS", 2, 0x1D0C5},
M{"BYZANTINE MUSICAL SYMBOL FTHORA SKLIRON CHROMA SYNAFI", 7,
0x1D0C6}));
}
} // namespace
} // namespace unicode
} // namespace sys
} // namespace llvm
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