From 172d90e7318ebe5bc07422f726eed48c113b262e Mon Sep 17 00:00:00 2001
From: Alois Klink <alois@mermaidchart.com>
Date: Mon, 6 Nov 2023 10:05:47 +0000
Subject: [PATCH] fix(flow): fix invalid ellipseText regex

This invalid regex was causing Mermaid to freeze.
---
 .../mermaid/src/diagrams/flowchart/parser/flow-text.spec.js   | 4 ++++
 packages/mermaid/src/diagrams/flowchart/parser/flow.jison     | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/packages/mermaid/src/diagrams/flowchart/parser/flow-text.spec.js b/packages/mermaid/src/diagrams/flowchart/parser/flow-text.spec.js
index b127e1b65d..61eccbbc8e 100644
--- a/packages/mermaid/src/diagrams/flowchart/parser/flow-text.spec.js
+++ b/packages/mermaid/src/diagrams/flowchart/parser/flow-text.spec.js
@@ -535,6 +535,10 @@ describe('[Text] when parsing', () => {
     expect(vert['A'].text).toBe('this is an ellipse');
   });
 
+  it('should not freeze when ellipse text has a `(`', function () {
+    expect(() => flow.parser.parse('graph\nX(- My Text (')).toThrowError();
+  });
+
   it('should handle text in diamond vertices with space', function () {
     const res = flow.parser.parse('graph TD;A(chimpansen hoppar)-->C;');
 
diff --git a/packages/mermaid/src/diagrams/flowchart/parser/flow.jison b/packages/mermaid/src/diagrams/flowchart/parser/flow.jison
index 6dad36d25f..de23d93cb9 100644
--- a/packages/mermaid/src/diagrams/flowchart/parser/flow.jison
+++ b/packages/mermaid/src/diagrams/flowchart/parser/flow.jison
@@ -134,7 +134,7 @@ that id.
 <*>\s*\~\~[\~]+\s*              return 'LINK';
 
 <ellipseText>[-/\)][\)]         { this.popState(); return '-)'; }
-<ellipseText>[^\(\)\[\]\{\}]|-/!\)+       return "TEXT"
+<ellipseText>[^\(\)\[\]\{\}]|-\!\)+       return "TEXT"
 <*>"(-"                         { this.pushState("ellipseText"); return '(-'; }
 
 <text>"])"                { this.popState(); return 'STADIUMEND'; }