feature request for libyaml: support "\/" escape sequence for YAML 1.2/JSON compatibility

I attempted to submit a feature request ticket for libyaml:

http://pyyaml.org/newticket?component=libyaml

but it rejected my ticket, telling me it was spam.  (I could go off on a 
whole rant about how so-called "spam filtering" makes it impossible for 
legitimate users to get anything done these days, but that would be 
off-topic.)

Anyway, since I can't submit a ticket, sending the feature request to 
this list seemed like the next-best thing.

Here is the text of the ticket I attempted to submit to libyaml:

YAML 1.2 adds support for the escape sequence "\/", which was not 
present in YAML 1.1:

http://www.yaml.org/spec/1.2/spec.html#id2776092

YAML 1.2 added this escape sequence in order to be compatible with JSON. 
  (Since YAML's goal is to be a superset of JSON.)

Although libyaml is only a YAML 1.1 parser, it would be nice to have 
this feature, and adding it shouldn't cause any trouble with parsing 
YAML 1.1.

This is all that's needed:

{{{
--- a/scanner.c~
+++ b/scanner.c
@@ -3164,6 +3164,10 @@ yaml_parser_scan_flow_scalar(yaml_parser_t 
*parser, yaml_
                          *(string.pointer++) = '\\';
                          break;

+                    case '/':
+                        *(string.pointer++) = '/';
+                        break;
+
                      case 'N':   /* NEL (#x85) */
                          *(string.pointer++) = '\xC2';
                          *(string.pointer++) = '\x85';
}}}

--Patrick

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