sc: Recognizing Citations
2.2 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’.
Info Catalog
sc: Citation Elements
sc: Citations