added web vendorsHEADmaster

1 files changed, 82 insertions, 0 deletions

diff --git a/preact-router/src/util.js b/preact-router/src/util.js
new file mode 100644
index 0000000..8bd989c
--- /dev/null
+++ b/preact-router/src/util.js
@@ -0,0 +1,82 @@
+
+const EMPTY = {};
+
+export function assign(obj, props) {
+	// eslint-disable-next-line guard-for-in
+	for (let i in props) {
+		obj[i] = props[i];
+	}
+	return obj;
+}
+
+export function exec(url, route, opts) {
+	let reg = /(?:\?([^#]*))?(#.*)?$/,
+		c = url.match(reg),
+		matches = {},
+		ret;
+	if (c && c[1]) {
+		let p = c[1].split('&');
+		for (let i=0; i<p.length; i++) {
+			let r = p[i].split('=');
+			matches[decodeURIComponent(r[0])] = decodeURIComponent(r.slice(1).join('='));
+		}
+	}
+	url = segmentize(url.replace(reg, ''));
+	route = segmentize(route || '');
+	let max = Math.max(url.length, route.length);
+	for (let i=0; i<max; i++) {
+		if (route[i] && route[i].charAt(0)===':') {
+			let param = route[i].replace(/(^:|[+*?]+$)/g, ''),
+				flags = (route[i].match(/[+*?]+$/) || EMPTY)[0] || '',
+				plus = ~flags.indexOf('+'),
+				star = ~flags.indexOf('*'),
+				val = url[i] || '';
+			if (!val && !star && (flags.indexOf('?')<0 || plus)) {
+				ret = false;
+				break;
+			}
+			matches[param] = decodeURIComponent(val);
+			if (plus || star) {
+				matches[param] = url.slice(i).map(decodeURIComponent).join('/');
+				break;
+			}
+		}
+		else if (route[i]!==url[i]) {
+			ret = false;
+			break;
+		}
+	}
+	if (opts.default!==true && ret===false) return false;
+	return matches;
+}
+
+export function pathRankSort(a, b) {
+	return (
+		(a.rank < b.rank) ? 1 :
+			(a.rank > b.rank) ? -1 :
+				(a.index - b.index)
+	);
+}
+
+// filter out VNodes without attributes (which are unrankeable), and add `index`/`rank` properties to be used in sorting.
+export function prepareVNodeForRanking(vnode, index) {
+	vnode.index = index;
+	vnode.rank = rankChild(vnode);
+	return vnode.props;
+}
+
+export function segmentize(url) {
+	return url.replace(/(^\/+|\/+$)/g, '').split('/');
+}
+
+export function rankSegment(segment) {
+	return segment.charAt(0)==':' ? (1 + '*+?'.indexOf(segment.charAt(segment.length-1))) || 4 : 5;
+}
+
+export function rank(path) {
+	return segmentize(path).map(rankSegment).join('');
+}
+
+function rankChild(vnode) {
+	return vnode.props.default ? 0 : rank(vnode.props.path);
+}