math/mathml.ml

   1 open Tex
   2 open Render_info
   3
   4 type t = TREE_MN of string | TREE_MO of string | TREE_MI of string
   5
   6 let rec make_mathml_tree = function
   7     TREE_MN a::otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MN,b))::itr -> make_mathml_tree(TREE_MN (a^b)::otr,itr)
   8   | otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MN,a))::itr -> make_mathml_tree(TREE_MN a::otr,itr)
   9   | otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MO,a))::itr -> make_mathml_tree(TREE_MO a::otr,itr)
  10   | otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MI,a))::itr -> make_mathml_tree(TREE_MI a::otr,itr)
  11   | otr,TEX_CURLY(crl)::itr -> make_mathml_tree(otr,crl@itr)
  12   | otr,[] -> List.rev otr
  13   | _ -> failwith "failed to render mathml"
  14
  15 let render_mathml_tree = function
  16     TREE_MN s -> "<mn>"^s^"</mn>"
  17   | TREE_MI s -> "<mi>"^s^"</mi>"
  18   | TREE_MO s -> "<mo>"^s^"</mo>"
  19
  20 let render tree = try Some (Util.mapjoin render_mathml_tree (make_mathml_tree ([],tree))) with _ -> None