From ef576edcac0adf9bbfa616c0b7dfa5c2da9a0751 Mon Sep 17 00:00:00 2001
From: NoScripter <noscripter@users.noreply.github.com>
Date: Tue, 16 Apr 2019 15:16:27 +0800
Subject: [PATCH] refactor: use positive lookahead in RegExp

Since negative lookbehind is relatively new(which got accepted in ECMAScript in 2018) and only v8 and node.js behind v9 without a flag support it, it's more convenient and compatible to use positive lookahead instead.

ref: https://stackoverflow.com/questions/641407/javascript-negative-lookbehind-equivalent
---
 lib/utils.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/utils.js b/lib/utils.js
index ce9d62d..98399b9 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -14,7 +14,7 @@ exports.escapePipesInTables = str => {
     let line = lines[i];
 
     if (/^\s*\|.*?\|\s*$/.test(line)) {
-      lines[i] = line.replace(/(?<!`)`((?:\\`|[^`])+)`(?!`)/g, m => {
+      lines[i] = line.replace(/(?:[^`])`((?:\\`|[^`])+)`(?!`)/g, m => {
         return m.replace(/\s*\|\s*/g, '\\|');
       });
     }