You can go further and incorporate a parser to do syntax checking, brace-matching and region folding.

你也可以进一步合并一个解析器以实现语法检查、括号匹配和区域折叠。

youdao

They both have syntax checking, code completion, and code folding. They both let you compile, run, and debug your code.

它们都有语法检验、代码完成和代码合并，都允许编译、运行和调试代码。

youdao

It has good syntax highlighting (in lots of languages), several styles of code folding, and block indent/dedent.

它有很好的语法高亮（支持多种语言）、好几种代码折叠的风格、支持块缩进/取消缩进。

youdao