question: protected int assertLineTerminates ( int c ) throws IOException , RDFParseException { c = reader . read ( ) ; c = skipWhitespace ( c ) ; if ( c != - 1 && c != '\r' && c != '\n' ) { reportFatalError ( "Content after '.' is not allowed" ) ; } return c ; }
target:  Verifies that there is only whitespace until the end of the line.