question: String pullInSource ( InputStream in , Charset encoding ) { String script = "" ; BufferedReader f = null ; try { StringBuilder sb = new StringBuilder ( ) ; Reader reader = null ; if ( encoding == null ) reader = new InputStreamReader ( in ) ; else reader = new InputStreamReader ( in , encoding ) ; f = new BufferedReader ( reader ) ; String line ; while ( ( line = f . readLine ( ) ) != null ) { sb . append ( line ) ; sb . append ( '\n' ) ; } script = sb . toString ( ) ; } catch ( IOException e ) { e . printStackTrace ( ) ; } return script ; }
target:  Given an input stream containing source file contents, read in each line