private String buildIdName(String word){
		try {
			while(st.nextToken() == '_' || st.ttype == StreamTokenizer.TT_WORD || st.ttype == StreamTokenizer.TT_NUMBER) {
				if(st.ttype == StreamTokenizer.TT_WORD)
					word += st.sval;
				else if(st.ttype == StreamTokenizer.TT_NUMBER)
					word += String.valueOf((int)st.nval);
				else if(st.ttype == '_')
					word += '_';
			}
			st.pushBack();
		} catch (IOException e) {
			e.printStackTrace();
		}
		return word;
	}