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authorJohn Keeping <john@keeping.me.uk>2014-01-12 17:13:52 +0000
committerJason A. Donenfeld <Jason@zx2c4.com>2014-01-14 02:00:07 +0100
commit7bd90b8048fd6937766dff7474947dd80205ea7e (patch)
tree63f9ba4eac9892a843338400042194b3bf115216 /filters
parent632efb25c07c1b014a4e8cfbbea759f517c2aaf6 (diff)
filter: add interface layer
Change the existing cgit_{open,close,fprintf}_filter functions to
delegate to filter-specific implementations accessed via function
pointers on the cgit_filter object.

We treat the "exec" filter type slightly specially here by putting its
structure definition in the header file and providing an "init" function
to set up the function pointers.  This is required so that the
ui-snapshot.c code that applies a compression filter can continue to use
the filter interface to do so.

Signed-off-by: John Keeping <john@keeping.me.uk>
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