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Firm up standard structure types

This commit is contained in:
John Whitington 2024-06-20 15:26:43 +01:00
parent d749660873
commit 835163cf9f
1 changed files with 7 additions and 12 deletions
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19
cpdfua.ml
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@ -128,23 +128,18 @@ let matterhorn_01_007 _ _ pdf =
| Some (Pdf.Boolean true) -> merror ()
| _ -> ()
(* Here, for now, we allow the ISO 32000 and ISO 32000-2 *)
(* FIXME which verison of PDF/UA are we doing? Can we do both? or pick? *)
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";
let standard_structure_types_2008 =
["/Document"; "/Part"; "/Sect"; "/Div"; "/NonStruct"; "/P"; "/H1"; "/H2";
"/H3"; "/H4"; "/H5"; "/H6"; "/H"; "/Lbl"; "/Span"; "/Link"; "/Annot";
"/Form"; "/Ruby"; "/RB"; "/RT"; "/RP"; "/Warichu"; "/WT"; "/WP"; "/L"; "/LI";
"/LBody"; "/Table"; "/TR"; "/TH"; "/TD"; "/THead"; "/TBody"; "/TFoot";
"/Caption"; "/Figure"; "/Formula"; "/Artifact";
(* 2008 ISO 3200 only *)
"/Art"; "/BlockQuote"; "/TOC"; "/TOCI"; "/Index"; "/Private"; "/Quote";
"/Note"; "/Reference"; "/Code"]
"/Caption"; "/Figure"; "/Formula"; "/Art"; "/BlockQuote"; "/TOC"; "/TOCI";
"/Index"; "/Private"; "/Quote"; "/Note"; "/Reference"; "/Code"; "/BibEntry"]
let rec follow_standard rm n =
match List.assoc_opt n rm with
| None -> raise Exit
| Some x when mem x standard_structure_types -> ()
| Some x when mem x standard_structure_types_2008 -> ()
| Some x -> follow_standard rm x
let circular rm =
@ -176,7 +171,7 @@ 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 ()
if List.exists (function k -> mem k standard_structure_types_2008) (map fst rolemap) then merror ()
| None -> ()
(* Document does not contain an XMP metadata stream *)