From 3faec0800eeb36499ead3e0f892201ff74ab8861 Mon Sep 17 00:00:00 2001
From: Ryan Petrello <lists@ryanpetrello.com>
Date: Thu, 25 Jun 2015 10:45:48 -0400
Subject: Allow all RFC3986-specified characters in explicit path segments.

Change-Id: I37635b153bde00e47904f94ed212e03f4dd708e9
---
 pecan/routing.py         | 4 +++-
 pecan/tests/test_base.py | 7 +++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/pecan/routing.py b/pecan/routing.py
index 29a294c..aed8ad5 100644
--- a/pecan/routing.py
+++ b/pecan/routing.py
@@ -42,7 +42,9 @@ def route(*args):
         if not isinstance(route, six.string_types):
             raise TypeError('%s must be a string' % route)
 
-        if not re.match('^[0-9a-zA-Z-_$\(\),;:]+$', route):
+        if route in ('.', '..') or not re.match(
+            '^[0-9a-zA-Z-_$\(\)\.~!,;:*+@=]+$', route
+        ):
             raise ValueError(
                 '%s must be a valid path segment.  Keep in mind '
                 'that path segments should not contain path separators '
diff --git a/pecan/tests/test_base.py b/pecan/tests/test_base.py
index 785b522..5baab91 100644
--- a/pecan/tests/test_base.py
+++ b/pecan/tests/test_base.py
@@ -2231,6 +2231,13 @@ class TestExplicitRoute(PecanTestCase):
             'path(with-parens)',
             'path;with;semicolons',
             'path:with:colons',
+            'v2.0',
+            '~username',
+            'somepath!',
+            'four*four',
+            'one+two',
+            '@twitterhandle',
+            'package=pecan'
         ):
             handler = C()
             route(C, path, handler)
-- 
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