Method ProcessStringConstant

sdk/angelscript/source/as_compiler.cpp:11783–11974

}

asUINT asCCompiler::ProcessStringConstant(asCString &cstr, asCScriptNode *node, bool processEscapeSequences)
{
	int charLiteral = -1;

	// Process escape sequences
	asCArray<char> str((int)cstr.GetLength());

	for( asUINT n = 0; n < cstr.GetLength(); n++ )
	{
#ifdef AS_DOUBLEBYTE_CHARSET
		// Double-byte charset is only allowed for ASCII and not UTF16 encoded strings
		if( (cstr[n] & 0x80) && engine->ep.scanner == 0 && engine->ep.stringEncoding != 1 )
		{
			// This is the lead character of a double byte character
			// include the trail character without checking it's value.
			str.PushLast(cstr[n]);
			n++;
			str.PushLast(cstr[n]);
			continue;
		}
#endif

		asUINT val;

		if( processEscapeSequences && cstr[n] == '\\' )
		{
			++n;
			if( n == cstr.GetLength() )
			{
				if( charLiteral == -1 ) charLiteral = 0;
				return charLiteral;
			}

			// Hexadecimal escape sequences will allow the construction of
			// invalid unicode sequences, but the string should also work as
			// a bytearray so we must support this. The code for working with
			// unicode text must be prepared to handle invalid unicode sequences
			if( cstr[n] == 'x' || cstr[n] == 'X' )
			{
				++n;
				if( n == cstr.GetLength() ) break;

				val = 0;
				int c = engine->ep.stringEncoding == 1 ? 4 : 2;
				for( ; c > 0 && n < cstr.GetLength(); c--, n++ )
				{
					if( cstr[n] >= '0' && cstr[n] <= '9' )
						val = val*16 +  cstr[n] - '0';
					else if( cstr[n] >= 'a' && cstr[n] <= 'f' )
						val = val*16 + cstr[n] - 'a' + 10;
					else if( cstr[n] >= 'A' && cstr[n] <= 'F' )
						val = val*16 + cstr[n] - 'A' + 10;
					else
						break;
				}

				// Rewind one, since the loop will increment it again
				n--;