From 74daf8ec5883b46e2f3b29bf0ac4cf85aa356fce Mon Sep 17 00:00:00 2001
From: "Davide P. Cervone" <dpvc@union.edu>
Date: Sat, 17 Feb 2024 14:25:07 -0500
Subject: [PATCH] Make stretchy paried delimiters not be class INNER. 
 (mathjax/MathJax#3183)

---
 ts/input/tex/mathtools/MathtoolsMethods.ts | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ts/input/tex/mathtools/MathtoolsMethods.ts b/ts/input/tex/mathtools/MathtoolsMethods.ts
index ee720aad1..680cbe352 100644
--- a/ts/input/tex/mathtools/MathtoolsMethods.ts
+++ b/ts/input/tex/mathtools/MathtoolsMethods.ts
@@ -486,7 +486,8 @@ export const MathtoolsMethods: Record<string, ParseMethod> = {
                    pre: string = '',  post: string = '') {
     const star = parser.GetStar();
     const size = (star ? '' : parser.GetBrackets(name));
-    const [left, right] = (star ? ['\\left', '\\right'] : size ? [size + 'l' , size + 'r'] : ['', '']);
+    const [left, right, after] = (star ? ['\\mathopen{\\left', '\\right', '}\\mathclose{}'] :
+                                 size ? [size + 'l' , size + 'r', ''] : ['', '', '']);
     const delim = (star ? '\\middle' : size || '');
     if (n) {
       const args: string[] = [];
@@ -498,7 +499,7 @@ export const MathtoolsMethods: Record<string, ParseMethod> = {
       post = ParseUtil.substituteArgs(parser, args, post);
     }
     body = body.replace(/\\delimsize/g, delim);
-    parser.string = [pre, left, open, body, right, close, post, parser.string.substring(parser.i)]
+    parser.string = [pre, left, open, body, right, close, after, post, parser.string.substring(parser.i)]
       .reduce((s, part) => ParseUtil.addArgs(parser, s, part), '');
     parser.i = 0;
     ParseUtil.checkMaxMacros(parser);