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John Whitington 2021-10-14 17:42:00 +01:00
parent e383cd7a03
commit b6a0c04644
1 changed files with 12 additions and 3 deletions
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cpdfjson.ml
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@ -1,3 +1,5 @@
(* FIXME investigate whether we need to look at inherited resources more *)
(* FIXME document format at top of this file *)
open Pdfutil open Pdfutil
open Cpdferror open Cpdferror
@ -348,10 +350,10 @@ let parse_content_stream pdf resources bs =
let ops = O.parse_stream pdf resources [bs] in let ops = O.parse_stream pdf resources [bs] in
`List (map (json_of_op pdf false) ops) `List (map (json_of_op pdf false) ops)
(* We need to make sure each page only has one page content stream. Otherwise, (* Make sure each page only has one page content stream. Otherwise,
if not split on op boundaries, each one would fail to parse on its own. The if not split on op boundaries, each one would fail to parse on its own. The
caller should really only do this on otherwise-failing files, since it could caller should really only do this on otherwise-failing files, since it could
blow up any shared content streams *) blow up any shared content streams. *)
let do_precombine_page_content pdf = let do_precombine_page_content pdf =
let pages' = let pages' =
map map
@ -411,7 +413,14 @@ let json_of_pdf
| P.Stream {contents = (_, P.Got b)} -> b | P.Stream {contents = (_, P.Got b)} -> b
| _ -> error "JSON: stream not decoded" | _ -> error "JSON: stream not decoded"
in in
(objnum, `Assoc ["S", `List [dict; parse_content_stream pdf (P.Dictionary []) streamdata]]) let dict =
match dict with
| `Assoc d ->
`Assoc (option_map (function (("/Filter" | "/Length"), _) -> None | (a, b) -> Some (a, b)) d)
| _ -> assert false
in
(objnum,
`Assoc ["S", `List [dict; parse_content_stream pdf (P.Dictionary []) streamdata]])
| _ -> error "json_of_pdf: stream parsing inconsistency" | _ -> error "json_of_pdf: stream parsing inconsistency"
end end
else else