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cpdf-source
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Annotation matterhorns

This commit is contained in:
John Whitington 2024-06-11 14:04:41 +01:00
parent d29295afb3
commit 6d428a7415
1 changed files with 49 additions and 7 deletions
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56
cpdfua.ml
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@ -10,6 +10,7 @@ let merror_str s = raise (MatterhornError (`String s))
let unimpl () = raise MatterhornUnimplemented
let todo () = ()
let not_fully_implemented () = ()
let covered_elsewhere () = ()
(* Content marked as Artifact is present inside tagged content. *)
let matterhorn_01_003 pdf = todo ()
@ -276,7 +277,13 @@ let matterhorn_28_004 pdf = todo ()
let matterhorn_28_005 pdf = todo ()
(* An annotation with subtype undefined in ISO 32000 does not meet 7.18.1. *)
let matterhorn_28_006 pdf = todo ()
let matterhorn_28_006 pdf =
if
List.exists
(fun x -> match x.Pdfannot.subtype with Pdfannot.Unknown _ -> true | _ -> false)
(flatten (map (Pdfannot.annotations_of_page pdf) (Pdfpage.pages_of_pagetree pdf)))
then
merror ()
(* An annotation of subtype TrapNet exists. *)
let matterhorn_28_007 pdf =
@ -288,11 +295,27 @@ let matterhorn_28_007 pdf =
merror ()
(* A page containing an annotation does not contain a Tabs entry *)
let matterhorn_28_008 pdf = todo ()
let matterhorn_28_008 pdf =
if
List.exists
(fun p ->
Pdfannot.annotations_of_page pdf p <> [] && Pdf.lookup_direct pdf "/Tabs" p.Pdfpage.rest = None)
(Pdfpage.pages_of_pagetree pdf)
then
merror ()
(* A page containing an annotation has a Tabs entry with a value other than S.
*)
let matterhorn_28_009 pdf = todo ()
let matterhorn_28_009 pdf =
if
List.exists
(fun p ->
Pdfannot.annotations_of_page pdf p <> [] &&
Pdf.lookup_direct pdf "/Tabs" p.Pdfpage.rest <> None && (* already covered by 28_008 above. *)
Pdf.lookup_direct pdf "/Tabs" p.Pdfpage.rest <> Some (Pdf.Name "/S"))
(Pdfpage.pages_of_pagetree pdf)
then
merror ()
(* A widget annotation is not nested within a <Form> tag. *)
let matterhorn_28_010 pdf = todo ()
@ -302,16 +325,35 @@ let matterhorn_28_011 pdf = todo ()
(* A link annotation does not include an alternate description in its Contents
entry. *)
let matterhorn_28_012 pdf = todo ()
let matterhorn_28_012 pdf =
if
List.exists
(fun x -> x.Pdfannot.subtype = Pdfannot.Link && x.Pdfannot.annot_contents = None )
(flatten (map (Pdfannot.annotations_of_page pdf) (Pdfpage.pages_of_pagetree pdf)))
then
merror ()
(* CT entry is missing from the media clip data dictionary. *)
let matterhorn_28_014 pdf = todo ()
let matterhorn_28_014 pdf =
Pdf.objiter
(fun _ o ->
match Pdf.lookup_direct pdf "/Type" o, Pdf.lookup_direct pdf "/S" o, Pdf.lookup_direct pdf "/CT" o with
| Some (Pdf.Name "/MediaClip"), Some (Pdf.Name "/MCD"), None -> merror ()
| _ -> ())
pdf
(* Alt entry is missing from the media clip data dictionary. *)
let matterhorn_28_015 pdf = todo ()
let matterhorn_28_015 pdf =
Pdf.objiter
(fun _ o ->
match Pdf.lookup_direct pdf "/Type" o, Pdf.lookup_direct pdf "/S" o, Pdf.lookup_direct pdf "/CT" o with
| Some (Pdf.Name "/MediaClip"), Some (Pdf.Name "/MCD"), None -> merror ()
| _ -> ())
pdf
(* File attachment annotations do not conform to 7.11. *)
let matterhorn_28_016 pdf = todo ()
let matterhorn_28_016 pdf =
covered_elsewhere ()
(* A PrinterMark annotation is included in the logical structure. *)
let matterhorn_28_017 pdf = todo ()