Function eventSelector

docs/app/js/sanddance-app.js:150015–150019

* Parse an event selector string. * Returns an array of event stream definitions.

(selector, source, marks)

 * Parse an event selector string.
 * Returns an array of event stream definitions.
 */ function eventSelector(selector, source, marks) {
    DEFAULT_SOURCE = source || VIEW;
    MARKS = marks || DEFAULT_MARKS;
    return parseMerge(selector.trim()).map(parseSelector);
}
function isMarkType(type) {
    return MARKS[type];
}