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Beginning rolemapping

This commit is contained in:
John Whitington 2024-06-11 17:42:25 +01:00
parent 6d428a7415
commit c9965f6840
1 changed files with 27 additions and 3 deletions
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30
cpdfua.ml
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@ -24,12 +24,35 @@ let matterhorn_01_005 pdf = todo ()
(* Suspects entry has a value of true. *)
let matterhorn_01_007 pdf = todo ()
let standard_structure_types =
["/Document"; "/DocumentFragment"; "/Part"; "/Sect"; "/Div"; "/Aside";
"/NonStruct"; "/P"; "/H1"; "/H2"; "/H3"; "/H4"; "/H5"; "/H6"; "/H"; "/Title";
"/FENote"; "/Sub"; "/Lbl"; "/Span"; "/Em"; "/Strong"; "/Link"; "/Annot";
"/Form"; "/Ruby"; "/RB"; "/RT"; "/RP"; "/Warichu"; "/WT"; "/WP"; "/L"; "/LI";
"/LBody"; "/Table"; "/TR"; "/TH"; "/TD"; "/THead"; "/TBody"; "/TFoot";
"/Caption"; "/Figure"; "/Formula"; "/Artifact"]
let read_rolemap pdf = function
| Pdf.Dictionary d ->
option_map (function (k, Pdf.Name v) -> Some (k, v) | _ -> None) d
| _ -> error "read_rolemap: not a rolemap"
(* One or more non-standard tag’s mapping does not terminate with a standard
type. *)
let matterhorn_02_001 pdf = todo ()
let matterhorn_02_001 pdf =
todo ()
(* A circular mapping exists. *)
let matterhorn_02_003 pdf = todo ()
let matterhorn_02_003 pdf =
todo ()
(* One or more standard types are remapped. *)
let matterhorn_02_004 pdf =
match Pdf.lookup_chain pdf pdf.Pdf.trailerdict ["/Root"; "/StructTreeRoot"; "/RoleMap"] with
| Some rm ->
let rolemap = read_rolemap pdf rm in
if List.exists (function k -> mem k standard_structure_types) (map fst rolemap) then merror ()
| None -> ()
(* Document does not contain an XMP metadata stream *)
let matterhorn_06_001 pdf =
@ -779,7 +802,8 @@ let matterhorn =
("01-005", "Content is neither marked as Artifact nor tagged as real content.", "UA1:7-1-2", matterhorn_01_005);
("01-007", "Suspects entry has a value of true.", "UA1:7-1-11", matterhorn_01_007);
("02-001", "One or more non-standard tag’s mapping does not terminate with a standard type.", "UA1:7.1-3", matterhorn_02_001);
("02-002", "A circular mapping exists.", "UA1:7.1-4", matterhorn_02_003);
("02-002", "A circular mapping exists.", "UA1:7.1-3", matterhorn_02_003);
("02-003", "One or more standard types are remapped.", "UA1:7.1-4", matterhorn_02_004);
("06-001", "Document does not contain an XMP metadata stream", "UA1:7.1-8", matterhorn_06_001);
("06-002", "The XMP metadata stream in the Catalog dictionary does not include the PDF/UA identifier.", "UA1:5", matterhorn_06_002);
("06-003", "XMP metadata stream does not contain dc:title", "UA1:7.1-8", matterhorn_06_003);