From 9234d38219ffa40786a79b6332b430d3da49c18f Mon Sep 17 00:00:00 2001
From: Robin Stocker <robin@nibor.org>
Date: Mon, 24 Jul 2017 11:31:08 +1000
Subject: [PATCH] Grammar: Use non-ambiguous syntax for xdigit class

While `\p{XDigit}` works, alternate regex engines might interpret it
according to UTS #18, which contains more than just the ASCII
characters, or not even implement it at all.

The YAML spec only contains the ASCII characters, see here:

http://yaml.org/spec/1.2/spec.html#id2775468
---
 Syntaxes/YAML.tmLanguage | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Syntaxes/YAML.tmLanguage b/Syntaxes/YAML.tmLanguage
index c0d7139..9dfd07f 100644
--- a/Syntaxes/YAML.tmLanguage
+++ b/Syntaxes/YAML.tmLanguage
@@ -370,8 +370,8 @@
                         (?:[ \t]+
                             ((?:!(?:[0-9A-Za-z\-]*!)?))
                             (?:[ \t]+ (
-                                  !              (?x: %\p{XDigit}{2} | [0-9A-Za-z\-#;/?:@&amp;=+$,_.!~*'()\[\]] )*
-                                | (?![,!\[\]{}]) (?x: %\p{XDigit}{2} | [0-9A-Za-z\-#;/?:@&amp;=+$,_.!~*'()\[\]] )+
+                                  !              (?x: %[0-9A-Fa-f]{2} | [0-9A-Za-z\-#;/?:@&amp;=+$,_.!~*'()\[\]] )*
+                                | (?![,!\[\]{}]) (?x: %[0-9A-Fa-f]{2} | [0-9A-Za-z\-#;/?:@&amp;=+$,_.!~*'()\[\]] )+
                                 )
                             )?
                         )?
@@ -1124,8 +1124,8 @@
 					<string>(?x)
                         \G
                         (?:
-                            ! &lt; (?: %\p{XDigit}{2} | [0-9A-Za-z\-#;/?:@&amp;=+$,_.!~*'()\[\]] )+ &gt;
-                          | (?:!(?:[0-9A-Za-z\-]*!)?) (?: %\p{XDigit}{2} | [0-9A-Za-z\-#;/?:@&amp;=+$_.~*'()] )+
+                            ! &lt; (?: %[0-9A-Fa-f]{2} | [0-9A-Za-z\-#;/?:@&amp;=+$,_.!~*'()\[\]] )+ &gt;
+                          | (?:!(?:[0-9A-Za-z\-]*!)?) (?: %[0-9A-Fa-f]{2} | [0-9A-Za-z\-#;/?:@&amp;=+$_.~*'()] )+
                           | !
                         )
                         (?=\ |\t|$)