Major Description
If an avro string contains a unicode escape sequence that begins with "\u" instead of "\U" an exception is thrown by the parser. The problematic code is at JsonIO.cc line 269.
JsonParser::Token JsonParser::tryString()
{
sv.clear();
for ( ; ;) {
char ch = in_.read();
if (ch == '"') {
return tkString;
} else if (ch == '\\') {
ch = in_.read();
switch (ch) {
case '"':
case '\\':
case '/':
sv.push_back(ch);
continue;
case 'b':
sv.push_back('\b');
continue;
case 'f':
sv.push_back('\f');
continue;
case 'n':
sv.push_back('\n');
continue;
case 'r':
sv.push_back('\r');
continue;
case 't':
sv.push_back('\t');
continue;
case 'U':
{
unsigned int n = 0;
char e[4];
in_.readBytes(reinterpret_cast<uint8_t*>(e), 4);
for (int i = 0; i < 4; i++) {
n *= 16;
char c = e[i];
if (isdigit(c)) {
n += c - '0';
} else if (c >= 'a' && c <= 'f') {
n += c - 'a' + 10;
} else if (c >= 'A' && c <= 'F') {
n += c - 'A' + 10;
} else {
unexpected(c);
}
}
sv.push_back(n);
}
break;
default:
unexpected(ch);
}
} else {
sv.push_back(ch);
}
}
}