1 files changed, 59 insertions, 0 deletions
diff --git a/history/modules/PathUtils.js b/history/modules/PathUtils.js
new file mode 100644
index 0000000..e5abec7
--- /dev/null
+++ b/history/modules/PathUtils.js
@@ -0,0 +1,59 @@
+export function addLeadingSlash(path) {
+  return path.charAt(0) === '/' ? path : '/' + path;
+}
+
+export function stripLeadingSlash(path) {
+  return path.charAt(0) === '/' ? path.substr(1) : path;
+}
+
+export function hasBasename(path, prefix) {
+  return (
+    path.toLowerCase().indexOf(prefix.toLowerCase()) === 0 &&
+    '/?#'.indexOf(path.charAt(prefix.length)) !== -1
+  );
+}
+
+export function stripBasename(path, prefix) {
+  return hasBasename(path, prefix) ? path.substr(prefix.length) : path;
+}
+
+export function stripTrailingSlash(path) {
+  return path.charAt(path.length - 1) === '/' ? path.slice(0, -1) : path;
+}
+
+export function parsePath(path) {
+  let pathname = path || '/';
+  let search = '';
+  let hash = '';
+
+  const hashIndex = pathname.indexOf('#');
+  if (hashIndex !== -1) {
+    hash = pathname.substr(hashIndex);
+    pathname = pathname.substr(0, hashIndex);
+  }
+
+  const searchIndex = pathname.indexOf('?');
+  if (searchIndex !== -1) {
+    search = pathname.substr(searchIndex);
+    pathname = pathname.substr(0, searchIndex);
+  }
+
+  return {
+    pathname,
+    search: search === '?' ? '' : search,
+    hash: hash === '#' ? '' : hash
+  };
+}
+
+export function createPath(location) {
+  const { pathname, search, hash } = location;
+
+  let path = pathname || '/';
+
+  if (search && search !== '?')
+    path += search.charAt(0) === '?' ? search : `?${search}`;
+
+  if (hash && hash !== '#') path += hash.charAt(0) === '#' ? hash : `#${hash}`;
+
+  return path;
+}