From a3369ffb21171365a254205f7999164904d427c7 Mon Sep 17 00:00:00 2001
From: Dave Longley <dlongley@digitalbazaar.com>
Date: Thu, 28 Feb 2013 15:49:42 -0500
Subject: [PATCH] Fix bugs with hashes and queries when compacting to relative
 IRIs.

---
 jsonld.php | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/jsonld.php b/jsonld.php
index 65ff924..db1211f 100644
--- a/jsonld.php
+++ b/jsonld.php
@@ -478,9 +478,12 @@ function jsonld_remove_base($base, $iri) {
     return $iri;
   }
 
+  // remove root from IRI
+  $rel = jsonld_parse_url(substr($iri, strlen($root)));
+
   // remove path segments that match
   $base_segments = explode('/', $base['path']);
-  $iri_segments = explode('/', substr($iri, strlen($root)));
+  $iri_segments = explode('/', $rel['path']);
   while(count($base_segments) > 0 && count($iri_segments) > 0) {
     if($base_segments[0] !== $iri_segments[0]) {
       break;
@@ -504,6 +507,18 @@ function jsonld_remove_base($base, $iri) {
   // prepend remaining segments
   $rval .= implode('/', $iri_segments);
 
+  // add query and hash
+  if(isset($rel['query'])) {
+    $rval .= "?{$rel['query']}";
+  }
+  if(isset($rel['fragment'])) {
+    $rval .= "#{$rel['fragment']}";
+  }
+
+  if($rval === '') {
+    $rval = './';
+  }
+
   return $rval;
 }