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-rw-r--r--application/core/MY_Router.php62
1 files changed, 62 insertions, 0 deletions
diff --git a/application/core/MY_Router.php b/application/core/MY_Router.php
new file mode 100644
index 000000000..2a20f579f
--- /dev/null
+++ b/application/core/MY_Router.php
@@ -0,0 +1,62 @@
+<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
+
+class MY_Router extends CI_Router {
+ /**
+ * This version of _parse_routes acts the same as the older version
+ * except that it now allows for callbacks to be used as an alternative
+ * to the original route styles. Backreferences are set to the
+ * parameters of the callback. Note: Remember to give default values to
+ * the parameters that can be empty.
+ */
+ function _parse_routes()
+ {
+ // Turn the segment array into a URI string
+ $uri = implode('/', $this->uri->segments);
+
+ // Is there a literal match? If so we're done
+ if (isset($this->routes[$uri]))
+ {
+ return $this->_set_request(explode('/', $this->routes[$uri]));
+ }
+
+ // Loop through the route array looking for wild-cards
+ foreach ($this->routes as $key => $val)
+ {
+ // Convert wild-cards to RegEx
+ $key = str_replace(':any', '.+', str_replace(':num', '[0-9]+', $key));
+
+ // Does the RegEx match?
+ if (preg_match('#^'.$key.'$#', $uri))
+ {
+ // Are we using a callback?
+ $callable = is_callable($val);
+
+ // Determine the appropriate preg_replace to use.
+ $preg_replace_type = $callable? 'preg_replace_callback': 'preg_replace';
+
+ // Are we using callbacks to process the matches?
+ if($callable){
+ $val = function($matches)use($val){
+ // Remove the string we are matching against from the matches array.
+ array_shift($matches);
+
+ // Distribute the matches to the arguments of the user's callback.
+ return call_user_func_array($val, $matches);
+ };
+ }
+
+ // Do we have a back-reference?
+ if ($callable OR (strpos($val, '$') !== FALSE AND strpos($key, '(') !== FALSE))
+ {
+ $val = call_user_func($preg_replace_type, '#^'.$key.'$#', $val, $uri);
+ }
+
+ return $this->_set_request(explode('/', $val));
+ }
+ }
+
+ // If we got this far it means we didn't encounter a
+ // matching route so we'll set the site default route
+ $this->_set_request($this->uri->segments);
+ }
+} \ No newline at end of file