refactor(core): add router

src/core/route/hash.js

@@ -1,7 +1,27 @@
-// import { cleanPath, getLocation } from './util'
-export function ensureSlash () {
-  const path = getHash()
-  if (path.charAt(0) === '/') return
+import { parseQuery } from './util'
+
+function replaceHash (path) {
+  const i = window.location.href.indexOf('#')
+  window.location.replace(
+    window.location.href.slice(0, i >= 0 ? i : 0) + '#' + path
+  )
+}
+
+/**
+ * Normalize the current url
+ *
+ * @example
+ * domain.com/docs/ => domain.com/docs/#/
+ * domain.com/docs/#/#slug => domain.com/docs/#/?id=slug
+ */
+export function normalize () {
+  let path = getHash()
+
+  path = path
+    .replace('#', '?id=')
+    .replace(/\?(\w+)=/g, (_, slug) => slug === 'id' ? '?id=' : `&${slug}=`)
+
+  if (path.charAt(0) === '/') return replaceHash(path)
   replaceHash('/' + path)
 }
 
@@ -13,11 +33,33 @@ export function getHash () {
   return index === -1 ? '' : href.slice(index + 1)
 }
 
-function replaceHash (path) {
-  const i = window.location.href.indexOf('#')
-  window.location.replace(
-    window.location.href.slice(0, i >= 0 ? i : 0) + '#' + path
-  )
+/**
+ * Parse the current url
+ * @return {object} { path, query }
+ */
+export function parse () {
+  let path = window.location.href
+  let query = ''
+
+  const queryIndex = path.indexOf('?')
+  if (queryIndex >= 0) {
+    query = path.slice(queryIndex + 1)
+    path = path.slice(0, queryIndex)
+  }
+
+  const hashIndex = path.indexOf('#')
+  if (hashIndex) {
+    path = path.slice(hashIndex + 1)
+  }
+
+  return { path, query: parseQuery(query) }
 }
 
-// TODO 把第二个 hash 转成 ?id=
+/**
+ * to URL
+ * @param  {String} path
+ * @param  {String} qs   query string
+ */
+export function toURL (path, qs) {
+
+}