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(gnus)Article Fontisizing

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Article Fontisizing
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   People commonly add emphasis to words in news articles by writing
things like `_this_' or `*this*' or `/this/'.  Gnus can make this look
nicer by running the article through the `W e'
(`gnus-article-emphasize') command.

   How the emphasis is computed is controlled by the
`gnus-emphasis-alist' variable.  This is an alist where the first
element is a regular expression to be matched.  The second is a number
that says what regular expression grouping is used to find the entire
emphasized word.  The third is a number that says what regexp grouping
should be displayed and highlighted.  (The text between these two
groupings will be hidden.)  The fourth is the face used for
highlighting.

     (setq gnus-article-emphasis
           '(("_\\(\\w+\\)_" 0 1 gnus-emphasis-underline)
             ("\\*\\(\\w+\\)\\*" 0 1 gnus-emphasis-bold)))

   By default, there are seven rules, and they use the following faces:
`gnus-emphasis-bold', `gnus-emphasis-italic',
`gnus-emphasis-underline', `gnus-emphasis-bold-italic',
`gnus-emphasis-underline-italic', `gnus-emphasis-underline-bold', and
`gnus-emphasis-underline-bold-italic'.

   If you want to change these faces, you can either use `M-x
customize', or you can use `copy-face'.  For instance, if you want to
make `gnus-emphasis-italic' use a red face instead, you could say
something like:

     (copy-face 'red 'gnus-emphasis-italic)

   If you want to highlight arbitrary words, you can use the
`gnus-group-highlight-words-alist' variable, which uses the same syntax
as `gnus-emphasis-alist'.  The `highlight-words' group parameter (Note:
Group Parameters) can also be used.

   Note: Customizing Articles, for how to fontize articles
automatically.