From 07a96e609ef5c9b428134c3a2c396d0f9b0c22f9 Mon Sep 17 00:00:00 2001
From: Jakob Stoklund Olesen <jolesen@mozilla.com>
Date: Wed, 12 Jul 2017 11:17:59 -0700
Subject: [PATCH] Fix Vim syntax highlighting of numbers.

Cretonne allows '_' in number constants.
---
 misc/vim/syntax/cton.vim | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/misc/vim/syntax/cton.vim b/misc/vim/syntax/cton.vim
index 003029e1bb..d345742154 100644
--- a/misc/vim/syntax/cton.vim
+++ b/misc/vim/syntax/cton.vim
@@ -22,8 +22,8 @@ syn match ctonEntity /\<\(v\|ss\|jt\|fn\|sig\)\d\+\>/
 syn match ctonLabel /\<ebb\d+\>/
 syn match ctonName /%\w\+\>/
 
-syn match ctonNumber /-\?\<\d\+\>/
-syn match ctonNumber /-\?\<0x\x\+\(\.\x*\)\(p[+-]\?\d\+\)\?\>/
+syn match ctonNumber /-\?\<[0-9_]\+\>/
+syn match ctonNumber /-\?\<0x[0-9a-fA-F_]\+\(\.[0-9a-fA-F_]*\)\?\(p[+-]\?\d\+\)\?\>/
 syn match ctonHexSeq /#\x\+\>/
 
 syn region ctonCommentLine start=";" end="$" contains=ctonFilecheck