Text filtering is the process of taking an input stream of text and performing some conversion on the text before sending it to an output stream.
文本过滤指的是这样一个过程：获得文本的输入流，并在将文本发送给输出流之前对文本执行一些转换。
2
Use the buttons in the left pane to customize various aspects of the conversion process specific to your input and output formats.
使用左侧窗格内的按钮可定制特定于此输入和输出格式的这一转换过程的各个方面。
3
Such a UML operation should specify the target type of the conversion as the return type and the source or input type of the conversion as a parameter type.