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[TextServer] Implement ICU/UAX 31 based is_valid_identifier function.

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This commit is contained in:
bruvzg
2021-10-18 15:07:11 +03:00
parent de53e91b85
commit 5aa48b6ae5
11 changed files with 1747 additions and 2 deletions
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22
servers/text_server.cpp
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@@ -447,6 +447,7 @@ void TextServer::_bind_methods() {
ClassDB::bind_method(D_METHOD("string_get_word_breaks", "string", "language"), &TextServer::string_get_word_breaks, DEFVAL(""));
ClassDB::bind_method(D_METHOD("strip_diacritics", "string"), &TextServer::strip_diacritics);
ClassDB::bind_method(D_METHOD("is_valid_identifier", "string"), &TextServer::is_valid_identifier);
ClassDB::bind_method(D_METHOD("string_to_upper", "string", "language"), &TextServer::string_to_upper, DEFVAL(""));
ClassDB::bind_method(D_METHOD("string_to_lower", "string", "language"), &TextServer::string_to_lower, DEFVAL(""));
@@ -545,6 +546,7 @@ void TextServer::_bind_methods() {
BIND_ENUM_CONSTANT(FEATURE_FONT_VARIABLE);
BIND_ENUM_CONSTANT(FEATURE_CONTEXT_SENSITIVE_CASE_CONVERSION);
BIND_ENUM_CONSTANT(FEATURE_USE_SUPPORT_DATA);
BIND_ENUM_CONSTANT(FEATURE_UNICODE_IDENTIFIERS);
/* FT Contour Point Types */
BIND_ENUM_CONSTANT(CONTOUR_CURVE_TAG_ON);
@@ -1730,6 +1732,26 @@ Array TextServer::_shaped_text_get_ellipsis_glyphs_wrapper(const RID &p_shaped)
return ret;
}
bool TextServer::is_valid_identifier(const String &p_string) const {
const char32_t *str = p_string.ptr();
int len = p_string.length();
if (len == 0) {
return false; // Empty string.
}
if (!is_unicode_identifier_start(str[0])) {
return false;
}
for (int i = 1; i < len; i++) {
if (!is_unicode_identifier_continue(str[i])) {
return false;
}
}
return true;
}
TextServer::TextServer() {
_init_diacritics_map();
}