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LibUnicode: Add to-and-from string converters for NormalizationForm

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Timothy Flynn 2022-10-06 10:45:59 -04:00 • committed by Linus Groh
parent 462c49ad55
commit 19b758ce8b
2 changed files with 31 additions and 0 deletions
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28
Userland/Libraries/LibUnicode/Normalize.cpp
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@ -17,6 +17,34 @@ namespace Unicode {
Optional<CodePointDecomposition const&> __attribute__((weak)) code_point_decomposition(u32) { return {}; } Optional<CodePointDecomposition const&> __attribute__((weak)) code_point_decomposition(u32) { return {}; }
Span<CodePointDecomposition const> __attribute__((weak)) code_point_decompositions() { return {}; } Span<CodePointDecomposition const> __attribute__((weak)) code_point_decompositions() { return {}; }
NormalizationForm normalization_form_from_string(StringView form)
{
if (form == "NFD"sv)
return NormalizationForm::NFD;
if (form == "NFC"sv)
return NormalizationForm::NFC;
if (form == "NFKD"sv)
return NormalizationForm::NFKD;
if (form == "NFKC"sv)
return NormalizationForm::NFKC;
VERIFY_NOT_REACHED();
}
StringView normalization_form_to_string(NormalizationForm form)
{
switch (form) {
case NormalizationForm::NFD:
return "NFD"sv;
case NormalizationForm::NFC:
return "NFC"sv;
case NormalizationForm::NFKD:
return "NFKD"sv;
case NormalizationForm::NFKC:
return "NFKC"sv;
}
VERIFY_NOT_REACHED();
}
ALWAYS_INLINE static bool is_starter(u32 code_point) ALWAYS_INLINE static bool is_starter(u32 code_point)
{ {
return Unicode::canonical_combining_class(code_point) == 0; return Unicode::canonical_combining_class(code_point) == 0;

3
Userland/Libraries/LibUnicode/Normalize.h
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@ -25,6 +25,9 @@ enum class NormalizationForm {
NFKC NFKC
}; };
NormalizationForm normalization_form_from_string(StringView form);
StringView normalization_form_to_string(NormalizationForm form);
[[nodiscard]] String normalize(StringView string, NormalizationForm form); [[nodiscard]] String normalize(StringView string, NormalizationForm form);
} }