我想修改许多包含在 .html 和 .txt 文件中的链接。我主要使用 Kate 作为我的文本编辑器，因此我用kate标签问了这个问题。以下是链接示例：
<li>
<a href="http://sk1project.org/">
sK1
</a> is an open source vector graphics editor similar to CorelDRAW, Adobe Illustrator, or Freehand. First of all sK1 is oriented for PostScript processing. UniConvertor is a universal vector graphics translator. It uses sK1 engine to convert
one format to another. Development of the import/export modules for this program goes through different stages, quality and feature coverage are different among formats.
</li><li>
<a href="http://tango.freedesktop.org/Tango_Desktop_Project">
The Tango Desktop Project
</a> exists to help create a consistent graphical user interface experience for free and Open Source software. While the look and feel of an application is determined by many individual components, some organization is necessary in order to
unify the appearance and structure of individual icon sets used within those components. The Tango Desktop Project defines an icon style guideline to which artists and designers can adhere. A sample implementation of the style is available as an icon
theme based upon a standardized icon naming specification. In addition, the project provides transitional utilities to assist in creating icon themes for existing desktop environments, such as GNOME and KDE.
</li>我找到
了从 HTML 链接中提取 URL 的正则表达式| python - 从 HTML 链接中提取 URL 的正则表达式 - 堆栈溢出，所以我知道如何使用从 href 到 "> 捕获文本href=[\'"]?([^\'" >]+">)，但我不知道如何在 > 之前将文本从 href 保留到 " 并添加在以下文本中：' rel="nofollow noopener noreferrer">'。
我有最终结果应该如下所示：
<li>
<a href="http://sk1project.org/" rel="nofollow noopener noreferrer">
sK1
</a> is an open source vector graphics editor similar to CorelDRAW, Adobe Illustrator, or Freehand. First of all sK1 is oriented for PostScript processing. UniConvertor is a universal vector graphics translator. It uses sK1 engine to convert
one format to another. Development of the import/export modules for this program goes through different stages, quality and feature coverage are different among formats.
</li><li>
<a href="http://tango.freedesktop.org/Tango_Desktop_Project" rel="nofollow noopener noreferrer">
The Tango Desktop Project
</a> exists to help create a consistent graphical user interface experience for free and Open Source software. While the look and feel of an application is determined by many individual components, some organization is necessary in order to
unify the appearance and structure of individual icon sets used within those components. The Tango Desktop Project defines an icon style guideline to which artists and designers can adhere. A sample implementation of the style is available as an icon
theme based upon a standardized icon naming specification. In addition, the project provides transitional utilities to assist in creating icon themes for existing desktop environments, such as GNOME and KDE
</li>Kate 中的正则表达式如何做到这一点？
谢谢你。