From a817acfb288bc025dcbe8ba7507b6a2adf6e0a55 Mon Sep 17 00:00:00 2001
From: hebo <hebo163@163.com>
Date: Tue, 2 Sep 2025 22:05:54 +0800
Subject: [PATCH] =?UTF-8?q?=E9=80=89=E8=AF=BE=E8=B0=83=E6=95=B4?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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---
 src/utils/richText.ts | 99 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 99 insertions(+)
 create mode 100644 src/utils/richText.ts

diff --git a/src/utils/richText.ts b/src/utils/richText.ts
new file mode 100644
index 0000000..1046804
--- /dev/null
+++ b/src/utils/richText.ts
@@ -0,0 +1,99 @@
+/**
+ * 富文本处理工具函数
+ */
+
+/**
+ * 转换HTML实体字符为普通字符
+ * @param html 包含HTML实体字符的字符串
+ * @returns 转换后的字符串
+ */
+export function decodeHtmlEntities(html: string): string {
+  if (!html) return "";
+  
+  return html
+    // 转换HTML实体字符
+    .replace(/&ldquo;/g, '"')
+    .replace(/&rdquo;/g, '"')
+    .replace(/&nbsp;/g, ' ')
+    .replace(/&amp;/g, '&')
+    .replace(/&lt;/g, '<')
+    .replace(/&gt;/g, '>')
+    .replace(/&quot;/g, '"')
+    .replace(/&#39;/g, "'")
+    .replace(/&#x27;/g, "'")
+    .replace(/&#x2F;/g, '/')
+    .replace(/&#x60;/g, '`')
+    .replace(/&#x3D;/g, '=')
+    .replace(/&#x2B;/g, '+')
+    .replace(/&#x23;/g, '#')
+    .replace(/&#x24;/g, '$')
+    .replace(/&#x25;/g, '%')
+    .replace(/&#x26;/g, '&')
+    .replace(/&#x28;/g, '(')
+    .replace(/&#x29;/g, ')')
+    .replace(/&#x2A;/g, '*')
+    .replace(/&#x2C;/g, ',')
+    .replace(/&#x2D;/g, '-')
+    .replace(/&#x2E;/g, '.')
+    .replace(/&#x3B;/g, ';')
+    .replace(/&#x3C;/g, '<')
+    .replace(/&#x3E;/g, '>')
+    .replace(/&#x40;/g, '@')
+    .replace(/&#x5B;/g, '[')
+    .replace(/&#x5C;/g, '\\')
+    .replace(/&#x5D;/g, ']')
+    .replace(/&#x5E;/g, '^')
+    .replace(/&#x5F;/g, '_')
+    .replace(/&#x7B;/g, '{')
+    .replace(/&#x7C;/g, '|')
+    .replace(/&#x7D;/g, '}')
+    .replace(/&#x7E;/g, '~');
+}
+
+/**
+ * 提取纯文本内容（去除HTML标签）
+ * @param html 包含HTML标签的字符串
+ * @returns 纯文本内容
+ */
+export function extractPlainText(html: string): string {
+  if (!html) return "";
+  
+  // 先解码HTML实体字符
+  const decoded = decodeHtmlEntities(html);
+  
+  // 去除HTML标签
+  return decoded.replace(/<[^>]*>/g, '').trim();
+}
+
+/**
+ * 格式化富文本内容用于显示
+ * @param html 原始HTML内容
+ * @returns 格式化后的HTML内容
+ */
+export function formatRichTextForDisplay(html: string): string {
+  if (!html) return "";
+  
+  // 解码HTML实体字符
+  let formatted = decodeHtmlEntities(html);
+  
+  // 确保段落之间有适当的间距
+  formatted = formatted.replace(/<\/p>\s*<p>/g, '</p><p>');
+  
+  // 确保列表项格式正确
+  formatted = formatted.replace(/<\/li>\s*<li>/g, '</li><li>');
+  
+  return formatted;
+}
+
+/**
+ * 获取富文本内容的摘要（前100个字符）
+ * @param html 富文本内容
+ * @param maxLength 最大长度，默认100
+ * @returns 摘要文本
+ */
+export function getRichTextSummary(html: string, maxLength: number = 100): string {
+  const plainText = extractPlainText(html);
+  if (plainText.length <= maxLength) return plainText;
+  
+  return plainText.substring(0, maxLength) + '...';
+}