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  • Iustin Pop's avatar
    Add filtering support in Query · 8a65c02b
    Iustin Pop authored Aug 26, 2012
    This adds basic infrastructure for filtering (fully functional except,
    as usual, for runtime data), and then uses it for node queries.
    
    Since the filtering exports regex matching as an external
    functionality, we have to use a regex library. There are many flavours
    of these in Haskell (see
    http://www.haskell.org/haskellwiki/Regular_expressions
    
    ), but since we
    want to be as compatible as we can with Python's, we use the
    regex-pcre one, which is a wrapper to the widely used 'pcre' library.
    
    Signed-off-by: default avatarIustin Pop <iustin@google.com>
    Reviewed-by: default avatarAgata Murawska <agatamurawska@google.com>
    8a65c02b