From 8723bbeaf8a21a65688787a5f643a4d181244e55 Mon Sep 17 00:00:00 2001
From: one <wangan.cs@gmail.com>
Date: Thu, 26 Jun 2025 15:52:58 +0800
Subject: [PATCH] fix(Markdown): falsely early return for display `\[\n...\n\]`
 (#7565)

---
 .../src/utils/__tests__/markdown.test.ts      | 32 +++++++++++++++++--
 src/renderer/src/utils/markdown.ts            |  4 +--
 2 files changed, 31 insertions(+), 5 deletions(-)

diff --git a/src/renderer/src/utils/__tests__/markdown.test.ts b/src/renderer/src/utils/__tests__/markdown.test.ts
index 4f48deba0c..f16509ced4 100644
--- a/src/renderer/src/utils/__tests__/markdown.test.ts
+++ b/src/renderer/src/utils/__tests__/markdown.test.ts
@@ -465,10 +465,28 @@ describe('markdown', () => {
 
   describe('processLatexBrackets', () => {
     describe('basic LaTeX conversion', () => {
-      it('should convert display math \\[...\\] to $$...$$', () => {
+      it('should convert (inline) display math \\[...\\] to $$...$$', () => {
         expect(processLatexBrackets('The formula is \\[a+b=c\\]')).toBe('The formula is $$a+b=c$$')
       })
 
+      it('should convert display math \\[...\\] to $$...$$', () => {
+        const input = `
+The formula is
+
+\\[
+a+b=c
+\\]
+`
+        const expected = `
+The formula is
+
+$$
+a+b=c
+$$
+`
+        expect(processLatexBrackets(input)).toBe(expected)
+      })
+
       it('should convert inline math \\(...\\) to $...$', () => {
         expect(processLatexBrackets('The formula is \\(a+b=c\\)')).toBe('The formula is $a+b=c$')
       })
@@ -611,9 +629,13 @@ const func = \\(x\\) => x * 2;
 
 Read more in [Section \\[3.2\\]: Advanced Topics](url) and see inline code \`\\[array\\]\`.
 
-Final thoughts on \\(\\nabla \\cdot \\vec{F} = \\rho\\) and display math:
+Final thoughts on \\(\\nabla \\cdot \\vec{F} = \\rho\\) in inline math and display math:
 
 \\[\\int_0^\\infty e^{-x^2} dx = \\frac{\\sqrt{\\pi}}{2}\\]
+
+\\[
+\\int_0^\\infty e^{-x^2} dx = \\frac{\\sqrt{\\pi}}{2}
+\\]
 `
 
         const expectedOutput = `
@@ -647,9 +669,13 @@ const func = \\(x\\) => x * 2;
 
 Read more in [Section \\[3.2\\]: Advanced Topics](url) and see inline code \`\\[array\\]\`.
 
-Final thoughts on $\\nabla \\cdot \\vec{F} = \\rho$ and display math:
+Final thoughts on $\\nabla \\cdot \\vec{F} = \\rho$ in inline math and display math:
 
 $$\\int_0^\\infty e^{-x^2} dx = \\frac{\\sqrt{\\pi}}{2}$$
+
+$$
+\\int_0^\\infty e^{-x^2} dx = \\frac{\\sqrt{\\pi}}{2}
+$$
 `
 
         expect(processLatexBrackets(complexInput)).toBe(expectedOutput)
diff --git a/src/renderer/src/utils/markdown.ts b/src/renderer/src/utils/markdown.ts
index 57025ca633..4fc499300d 100644
--- a/src/renderer/src/utils/markdown.ts
+++ b/src/renderer/src/utils/markdown.ts
@@ -1,5 +1,5 @@
 import { languages } from '@shared/config/languages'
-import balanced from 'balanced-match'
+import { default as balanced } from 'balanced-match'
 import remarkParse from 'remark-parse'
 import remarkStringify from 'remark-stringify'
 import removeMarkdown from 'remove-markdown'
@@ -31,7 +31,7 @@ export const findCitationInChildren = (children: any): string => {
 }
 
 // 检查是否包含潜在的 LaTeX 模式
-const containsLatexRegex = /\\\(.*?\\\)|\\\[.*?\\\]|\$.*?\$|\\begin\{equation\}.*?\\end\{equation\}/
+const containsLatexRegex = /\\\(.*?\\\)|\\\[.*?\\\]|\$.*?\$|\\begin\{equation\}.*?\\end\{equation\}/s
 
 /**
  * 转换 LaTeX 公式括号 `\[\]` 和 `\(\)` 为 Markdown 格式 `$$...$$` 和 `$...$`