基于嵌套层次的缩进标记。

Markup indented based on nesting level.

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可以使用制表符来标记缩进，但是一般推荐使用空格。

You can use tab characters to mark the indentation, but it's generally recommended that you use spaces.

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RubyMine拥有自动代码格式化功能，如括号匹配、代码折叠、自定义格式、缩进和TODO标记。

RubyMine performs automatic Ruby code styling, with brace matching and folding, custom formatting, indentation and TODO marks.

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