Added range to -list-fonts

cpdf.ml

@@ -1094,23 +1094,27 @@ let list_font pdf page (name, dict) =
   in 
     (page, name, subtype, basefont, encoding)
 
-let list_fonts pdf =
+let list_fonts pdf range =
   let pages = Pdfpage.pages_of_pagetree pdf in
     flatten
       (map
         (fun (num, page) ->
-           match Pdf.lookup_direct pdf "/Font" page.Pdfpage.resources with
-           | Some (Pdf.Dictionary fontdict) ->
-               map (list_font pdf num) fontdict
-           | _ -> [])
+           if mem num range then
+             begin match Pdf.lookup_direct pdf "/Font" page.Pdfpage.resources with
+             | Some (Pdf.Dictionary fontdict) ->
+                 map (list_font pdf num) fontdict
+             | _ -> []
+             end
+           else
+             [])
         (combine (ilist 1 (length pages)) pages))
 
 let string_of_font (p, n, s, b, e) =
   Printf.sprintf "%i %s %s %s %s\n" p n s b e
 
-let print_fonts pdf =
+let print_fonts pdf range =
   flprint
-    (fold_left ( ^ ) "" (map string_of_font (list_fonts pdf)))
+    (fold_left ( ^ ) "" (map string_of_font (list_fonts pdf range)))
 
 (* \section{Superimpose text, page numbers etc.} *)
 

cpdf.mli

@@ -149,10 +149,10 @@ val split_on_bookmarks : Pdf.t -> int -> Pdf.t list
 (** {2 Listing fonts} *)
 
 (** Print font list to stdout *)
-val print_fonts : Pdf.t -> unit
+val print_fonts : Pdf.t -> int list -> unit
 
 (** Return font list. Page number, name, subtype, basefont, encoding.  *)
-val list_fonts : Pdf.t -> (int * string * string * string * string) list
+val list_fonts : Pdf.t -> int list -> (int * string * string * string * string) list
 
 (** {2 Adding text} *)
 

cpdfcommand.ml

@@ -3532,7 +3532,13 @@ let go () =
   | Some Metadata ->
       Cpdf.print_metadata (get_single_pdf (Some Metadata) true)
   | Some Fonts ->
-      Cpdf.print_fonts (get_single_pdf (Some Fonts) true)
+      begin match args.inputs, args.out with
+      | (_, pagespec, _, _, _, _)::_, _ ->
+          let pdf = get_single_pdf (Some Fonts) true in
+          let range = parse_pagespec_allow_empty pdf pagespec in
+            Cpdf.print_fonts pdf range
+      | _ -> error "-list-fonts: bad command line"
+      end
   | Some ListBookmarks ->
       begin match args.inputs, args.out with
       | (_, pagespec, _, _, _, _)::_, _ ->