From ae2ac2abea22bbab7434cd62c87ff29bd285affd Mon Sep 17 00:00:00 2001
From: "Ryan J. Miller" <rjmiller10@gmail.com>
Date: Tue, 1 Dec 2020 14:01:43 -0500
Subject: [PATCH] Rel JSON Pointer: add ABNF/examples for index manipulation

Fixes #1048
---
 relative-json-pointer.xml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/relative-json-pointer.xml b/relative-json-pointer.xml
index 06af623c..6e439369 100644
--- a/relative-json-pointer.xml
+++ b/relative-json-pointer.xml
@@ -91,8 +91,9 @@
                 </preamble>
                 <artwork>
 <![CDATA[
-   relative-json-pointer =  non-negative-integer <json-pointer>
+   relative-json-pointer =  non-negative-integer [index-manipulation] <json-pointer>
    relative-json-pointer =/ non-negative-integer "#"
+   index-manipulation    =  ("+" / "-") non-negative-integer
    non-negative-integer      =  %x30 / %x31-39 *( %x30-39 )
            ; "0", or digits without a leading "0"
 ]]>
@@ -213,8 +214,10 @@
 <![CDATA[
                   "0"                         "baz"
                   "1/0"                       "bar"
+                  "0-1"                       "bar"
                   "2/highly/nested/objects"   true
                   "0#"                        1
+                  "0-1#"                      0
                   "1#"                        "foo"
 ]]>
                     </artwork>