function validate( node ) {
		var matches;
		var jsdoc;
		var msg;

		jsdoc = findJSDoc( source, node );
		if ( isObject( jsdoc ) ) {
			matches = jsdoc.value.match( RE_EXAMPLE );
			if ( matches ) {
				if ( matches.length > 1 ) {
					msg = 'Missing empty lines before JSDoc @example tags';
				} else {
					msg = 'Missing empty line before JSDoc @example tag';
				}
				report( jsdoc, msg );
			}
		}
	}
Checks whether JSDoc `@example` tags are preceded by empty lines.

@private
@param {ASTNode} node - node to examine