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LibUnicode: Generate data for bidirectional character types

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This will let us examine code points to determine the rtl/ltr direction
of a piece of text.
This commit is contained in:
Sam Atkins 2023-08-12 21:00:58 +01:00 • committed by Tim Flynn
parent ef6133337e
commit 0d021a63c7
5 changed files with 95 additions and 0 deletions
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25
Tests/LibUnicode/TestUnicodeCharacterTypes.cpp
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@ -848,3 +848,28 @@ TEST_CASE(code_point_display_name)
EXPECT_EQ(code_point_display_name(0x2f802), "CJK COMPATIBILITY IDEOGRAPH-2F802"sv);
EXPECT_EQ(code_point_display_name(0x2fa1d), "CJK COMPATIBILITY IDEOGRAPH-2FA1D"sv);
}
TEST_CASE(code_point_bidirectional_character_type)
{
auto code_point_bidi_class = [](u32 code_point) {
auto bidi_class = Unicode::bidirectional_class(code_point);
VERIFY(bidi_class.has_value());
return bidi_class.release_value();
};
auto bidi_class_from_string = [](StringView name) {
auto result = Unicode::bidirectional_class_from_string(name);
VERIFY(result.has_value());
return result.release_value();
};
// Left-to-right
EXPECT_EQ(code_point_bidi_class('A'), bidi_class_from_string("L"sv));
EXPECT_EQ(code_point_bidi_class('z'), bidi_class_from_string("L"sv));
// European number
EXPECT_EQ(code_point_bidi_class('7'), bidi_class_from_string("EN"sv));
// Whitespace
EXPECT_EQ(code_point_bidi_class(' '), bidi_class_from_string("WS"sv));
// Arabic right-to-left (U+FEB4 ARABIC LETTER SEEN MEDIAL FORM)
EXPECT_EQ(code_point_bidi_class(0xFEB4), bidi_class_from_string("AL"sv));
}