tests if the directory contains the essential root file for a daisy book currently it 's limited to checking for daisy 2.02 books . concode_field_sep String DEFAULT_ROOT_FOLDER concode_elem_sep String PREFS_FILE concode_elem_sep String LAST_BOOK concode_elem_sep String OPT_ROOT_FOLDER concode_field_sep String getNccFileName
boolean function ( File arg0 ) { if ( ! arg0 . isDirectory ( ) ) { return false ; } if ( new File ( arg0 , "srini_string" ) . exists ( ) ) { return true ; } if ( new File ( arg0 , "srini_string" ) . exists ( ) ) { return true ; } return false ; }