OS X 的开源文本编辑器：CotEditor
CotEditor 是 OS X 下一款开源免费的文本编辑器。只适用于OS X，其外观和行为与其它OS X应用一样。启动速度。
特性
语法高亮
支持40种主流的编程语言如：HTML, PHP, Python, Ruby 或 Markdown。你还可以创建自己的设置。
强大的查找和替换功能
超级强大的查找和替换功能使用OniGmo正规表达式引擎Setting via Click
There is no complex setting files require geek knowledge. You can access all your settings incl. syntax definitions and themes from a normal preferences window.
Outline Menu
Extract specified lines with the predefined syntax and you can jump to the corresponding line.
Split View
Split a window into multiple panes to see different parts of your document at the same time.
Character Inspector
Inspect unicode character data of each selected character in your document and display them in a popover.
Scriptable
Make your own macro in your favorite language, whether it is Python, Ruby, Perl, PHP, UNIX shell or AppleScript (and even JavaScript on Yosemite).
Incompatible Characters
Check and list-up the characters in your document that cannot be converted into the desired encoding.
CJK Language Friendly
Estimate various file encodings accurately, toggle to vertical text mode and keep its line height correctly.
