removing environments with sed

问题

I would like to parse a text like

Lorem ipsum dolor \tag{sit} amet, \git{consetetur} sadipscing elitr, sed diam
nonumy eirmod tempor invidunt ut \tag{labore \git{et} dolore magna aliquyam
erat, sed} diam voluptua. At vero eos et accusam et justo duo dolores et ea
\tag{rebum.}

into

Lorem ipsum dolor sit amet, \git{consetetur} sadipscing elitr, sed diam
nonumy eirmod tempor invidunt ut labore \git{et} dolore magna aliquyam
erat, sed diam voluptua. At vero eos et accusam et justo duo dolores et ea
rebum.

i.e., remove all the \tag{...} environments (that can span over multiple lines).

Is sed suitable for the task? What does the suiting regular expression look like that matches the brackets?

来源：https://stackoverflow.com/questions/24079453/removing-environments-with-sed