validate the given text - to pass it must contain letters , digits , ' @ ' , ' - ' , '_' , ' . ' , ' , ' or a space character . concode_field_sep PlaceHolder placeHolder concode_field_sep boolean isNotNull concode_elem_sep boolean isTrue concode_elem_sep String getTimeFromLong concode_elem_sep String getNickname concode_elem_sep boolean isValidData concode_elem_sep String replace concode_elem_sep String getPushedURL
boolean function ( String arg0 ) { for ( int loc0 = 0 ; loc0 < arg0 . length ( ) ; loc0 ++ ) { char loc1 = arg0 . charAt ( loc0 ) ; if ( ! Character . isLetterOrDigit ( loc1 ) && loc1 != '@' && loc1 != '-' && loc1 != '_' && loc1 != '.' && loc1 != ',' && loc1 != ' ' ) { return false ; } } return true ; }