question: void parse ( String baseDir , String className ) { String fileName = baseDir + "/" + className . replace ( '.' , '/' ) + ".java" ; current = new ParseState ( ) ; try { RandomAccessFile file = new RandomAccessFile ( fileName , "r" ) ; byte [ ] buff = new byte [ ( int ) file . length ( ) ] ; file . readFully ( buff ) ; source = new String ( buff , "UTF-8" ) ; file . close ( ) ; } catch ( IOException e ) { throw new RuntimeException ( e ) ; } source = replaceUnicode ( source ) ; source = removeRemarks ( source ) ; try { readToken ( ) ; parseCompilationUnit ( ) ; } catch ( Exception e ) { throw new RuntimeException ( source . substring ( 0 , current . index ) + "[*]" + source . substring ( current . index ) , e ) ; } }
target:  Parse the source code.