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(sc)Recognizing Citations

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Recognizing Citations
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   Supercite also recognizes citations in the original article, and can
transform these already cited lines in a number of ways. This is how
Supercite suppresses the multiple citing of non-nested citations.
Recognition of cited lines is controlled by variables analogous to those
that make up the citation string as mentioned previously.

   The variable `sc-citation-leader-regexp' describes how citation
leaders can look, by default it matches any number of spaces or tabs.
Note that since the lisp function `looking-at' is used to do the
matching, if you change this variable it need not start with a leading
`"^"'.

   Similarly, the variables `sc-citation-delimiter-regexp' and
`sc-citation-separator-regexp' respectively describe how citation
delimiters and separators can look.  They follow the same rule as
`sc-citation-leader-regexp' above.

   When Supercite composes a citation string, it provides the
attribution automatically.  The analogous variable which handles
recognition of the attribution part of citation strings is
`sc-citation-root-regexp'.  This variable describes the attribution
root for both nested and non-nested citations.  By default it can match
zero-to-many alphanumeric characters (also ".", "-", and "_").  But in
some situations, Supercite has to determine whether it is looking at a
nested or non-nested citation.  Thus the variable
`sc-citation-nonnested-root-regexp' is used to describe only non-nested
citation roots.  It is important to remember that if you change
`sc-citation-root-regexp' you should always also change
`sc-citation-nonnested-root-regexp'.