private String readTString(DataSource source) throws IOException {
int size = source.getUShort();
if (size == 0) return null;
byte[] b = new byte[size];
source.get(b, 0, size);
for (int i = 0; i < b.length; i++) b[i] ^= 0xff;
String s = new String(b);
if (s.endsWith("\0")) s = s.substring(0, s.length() - 1);
return s;
}
private LuaFunction readFunction(DataSource source) throws IOException {
LuaFunction lf = new LuaFunction();
lf.lineNo = source.getUShort();
lf.source = readTString(source);
int codeSize = source.getInt();
lf.code = new byte[codeSize];
source.get(lf.code);
lf.constants = readConstants(source);
lf.localVars = readLocals(source);
readFunctions(lf.constants, source);
return lf;
}