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pow-testgiver support

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ton 2020-07-06 17:07:20 +03:00
parent dbde9c1c40
commit f064b1047a
257 changed files with 6665 additions and 2608 deletions
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15
tdutils/td/utils/utf8.h
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@ -40,6 +40,15 @@ inline size_t utf8_length(Slice str) {
return result;
}
/// returns length of UTF-8 string in UTF-16 code units
inline size_t utf8_utf16_length(Slice str) {
size_t result = 0;
for (auto c : str) {
result += is_utf8_character_first_code_unit(c) + ((c & 0xf8) == 0xf0);
}
return result;
}
/// appends a Unicode character using UTF-8 encoding
void append_utf8_character(string &str, uint32 ch);
@ -92,6 +101,9 @@ T utf8_utf16_truncate(T str, size_t length) {
template <class T>
T utf8_substr(T str, size_t offset) {
if (offset == 0) {
return str;
}
auto offset_pos = utf8_truncate(str, offset).size();
return str.substr(offset_pos);
}
@ -103,6 +115,9 @@ T utf8_substr(T str, size_t offset, size_t length) {
template <class T>
T utf8_utf16_substr(T str, size_t offset) {
if (offset == 0) {
return str;
}
auto offset_pos = utf8_utf16_truncate(str, offset).size();
return str.substr(offset_pos);
}