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33 lines
1.3 KiB
OCaml
33 lines
1.3 KiB
OCaml
let rec dict_entry_single_object f pdf = function
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| (Pdf.Dictionary d) -> f (Pdf.recurse_dict (dict_entry_single_object f pdf) d)
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| (Pdf.Stream {contents = (Pdf.Dictionary dict, data)}) ->
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f (Pdf.Stream {contents = (Pdf.recurse_dict (dict_entry_single_object f pdf) dict, data)})
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| Pdf.Array a -> Pdf.recurse_array (dict_entry_single_object f pdf) a
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| x -> x
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(* FIXME are we sure that functional values can never appear in the equality here? *)
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let remove_dict_entry pdf key search =
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let f d =
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match search with
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| None -> Pdf.remove_dict_entry d key
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| Some s ->
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match Pdf.lookup_direct pdf key d with
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| Some v when v = s -> Pdf.remove_dict_entry d key
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| _ -> d
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in
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Pdf.objselfmap (dict_entry_single_object f pdf) pdf;
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pdf.Pdf.trailerdict <- dict_entry_single_object f pdf pdf.Pdf.trailerdict
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let replace_dict_entry pdf key value search =
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let f d =
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match search with
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| None -> begin try Pdf.replace_dict_entry d key value with _ -> d end
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| Some s ->
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match Pdf.lookup_direct pdf key d with
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| Some v when v = s -> Pdf.replace_dict_entry d key value
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| _ -> d
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in
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Pdf.objselfmap (dict_entry_single_object f pdf) pdf;
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pdf.Pdf.trailerdict <- dict_entry_single_object f pdf pdf.Pdf.trailerdict
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