Gnus Manual. Node: Topic Variables

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2.16.1: Topic Variables

Now, if you select a topic, it will fold/unfold that topic, which is really neat, I think.

The topic lines themselves are created according to the gnus-topic-line-format variable (see Formatting Variables). Valid elements are:

`i'

Indentation.

`n' Topic name.
`v' Visibility.
`l' Level.
`g' Number of groups in the topic.
`a' Number of unread articles in the topic.
`A' Number of unread articles in the topic and all its subtopics.

Each sub-topic (and the groups in the sub-topics) will be indented with gnus-topic-indent-level times the topic level number of spaces. The default is 2.

gnus-topic-mode-hook is called in topic minor mode buffers.

The gnus-topic-display-empty-topics says whether to display even topics that have no unread articles in them. The default is t.

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