validate the file . return true if no errors or warnings found . concode_field_sep String BUILD_DATE concode_elem_sep EPUBProfile profile concode_elem_sep Report report concode_elem_sep File epubFile concode_elem_sep String VERSION concode_field_sep String buildDate concode_elem_sep void checkEpubHeader concode_elem_sep String version concode_elem_sep int doValidate concode_elem_sep int getIntFromBytes concode_elem_sep void checkExtension
boolean function ( ) { int loc0 = doValidate ( ) ; return loc0 == 0 ; }