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[TextServer] Implement locale and context sensitive case conversion functions.

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This commit is contained in:
bruvzg
2022-01-17 10:54:45 +02:00
parent 5d238468ea
commit e02a097280
11 changed files with 151 additions and 9 deletions
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36
modules/text_server_adv/text_server_adv.cpp
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@ -322,7 +322,7 @@ _FORCE_INLINE_ bool is_underscore(char32_t p_char) {
/*************************************************************************/
String TextServerAdvanced::interface_name = "ICU / HarfBuzz / Graphite";
uint32_t TextServerAdvanced::interface_features = FEATURE_BIDI_LAYOUT | FEATURE_VERTICAL_LAYOUT | FEATURE_SHAPING | FEATURE_KASHIDA_JUSTIFICATION | FEATURE_BREAK_ITERATORS | FEATURE_USE_SUPPORT_DATA | FEATURE_FONT_VARIABLE;
uint32_t TextServerAdvanced::interface_features = FEATURE_BIDI_LAYOUT | FEATURE_VERTICAL_LAYOUT | FEATURE_SHAPING | FEATURE_KASHIDA_JUSTIFICATION | FEATURE_BREAK_ITERATORS | FEATURE_USE_SUPPORT_DATA | FEATURE_FONT_VARIABLE | FEATURE_CONTEXT_SENSITIVE_CASE_CONVERSION;
bool TextServerAdvanced::has_feature(Feature p_feature) const {
return (interface_features & p_feature) == p_feature;
@ -5229,6 +5229,40 @@ String TextServerAdvanced::strip_diacritics(const String &p_string) const {
return result;
}
String TextServerAdvanced::string_to_upper(const String &p_string, const String &p_language) const {
// Convert to UTF-16.
Char16String utf16 = p_string.utf16();
Char16String upper;
UErrorCode err = U_ZERO_ERROR;
int32_t len = u_strToUpper(nullptr, 0, utf16.ptr(), -1, p_language.ascii().get_data(), &err);
ERR_FAIL_COND_V_MSG(err != U_BUFFER_OVERFLOW_ERROR, p_string, u_errorName(err));
upper.resize(len);
err = U_ZERO_ERROR;
u_strToUpper(upper.ptrw(), len, utf16.ptr(), -1, p_language.ascii().get_data(), &err);
ERR_FAIL_COND_V_MSG(U_FAILURE(err), p_string, u_errorName(err));
// Convert back to UTF-32.
return String::utf16(upper.ptr(), len);
}
String TextServerAdvanced::string_to_lower(const String &p_string, const String &p_language) const {
// Convert to UTF-16.
Char16String utf16 = p_string.utf16();
Char16String lower;
UErrorCode err = U_ZERO_ERROR;
int32_t len = u_strToLower(nullptr, 0, utf16.ptr(), -1, p_language.ascii().get_data(), &err);
ERR_FAIL_COND_V_MSG(err != U_BUFFER_OVERFLOW_ERROR, p_string, u_errorName(err));
lower.resize(len);
err = U_ZERO_ERROR;
u_strToLower(lower.ptrw(), len, utf16.ptr(), -1, p_language.ascii().get_data(), &err);
ERR_FAIL_COND_V_MSG(U_FAILURE(err), p_string, u_errorName(err));
// Convert back to UTF-32.
return String::utf16(lower.ptr(), len);
}
TextServerAdvanced::TextServerAdvanced() {
_insert_num_systems_lang();
_insert_feature_sets();