Regex route syntax fails in namespaces

[abackstrom]

Regex style routes fail if respond() is called within a namespace. Sample code for testing purposes:

<?php

include __DIR__ . '/klein/klein.php';

echo '<pre>';

respond( '/', function( $request, $response, $app ) {
    echo 'Hello, World.';
});

with( '/entities', function() {
    respond( function(){ var_dump( null ); } );
    respond( '*', function(){ var_dump( '*' ); } );
    respond( '/?', function(){ var_dump( '/?' ); } );
    respond( '/people/[:name]', function(){ var_dump( '/people/[:name]' ); } );

    respond( '@foo', function(){ var_dump( '@foo' ); } );
    respond( '!@foo', function(){ var_dump( '!@foo' ); } );

    respond( '!@^/foo', function(){ var_dump( '!@^/foo' ); } );
    respond( '@^/foo', function(){ var_dump( '@^/foo' ); } );

    respond( '@foo$', function(){ var_dump( '@foo$' ); } );
    respond( '!@foo$', function(){ var_dump( '!@foo$' ); } );

    respond( '@^/foo$', function(){ var_dump( '@^/foo$' ); } );
    respond( '!@^/foo$', function(){ var_dump( '!@^/foo$' ); } );

    respond( '@^/.*\.(json|csv)$', function(){ var_dump( '@^/.*\.(json|csv)$' ); } );
    respond( '!@^/.*\.(json|csv)$', function(){ var_dump( '!@^/.*\.(json|csv)$' ); } );
});

dispatch();

In the current version of klein, most URIs (e.g. /entities/foo) will only match the catch-alls:

NULL
string(1) "*"

klein should be patched so that route regexes are appended to the current namespace.

[abackstrom]

I've been using this extra code to debug route translations:

diff --git a/klein.php b/klein.php
index 4b8f042..ec943d1 100644
--- a/klein.php
+++ b/klein.php
@@ -19,6 +19,8 @@ function respond($method, $route = '*', $callback = null) {
         $method = null;
     }

+   $orig_route = $route;
+
     // empty route with namespace is a match-all
     if( $__namespace && ( null == $route || '*' == $route ) ) {
         $route = '@^' . $__namespace . '(/|$)';
@@ -26,6 +28,10 @@ function respond($method, $route = '*', $callback = null) {
         $route = $__namespace . $route;
     }

+   echo 'Original: '; var_dump( $orig_route );
+   echo 'Modified: '; var_dump( $route );
+   echo "----\n";
+
     $__routes[] = array($method, $route, $callback, $count_match);
     return $callback;
 }