25 lines
1.2 KiB
OCaml
25 lines
1.2 KiB
OCaml
open Tex
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open Render_info
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type t = TREE_MN of string | TREE_MO of string | TREE_MI of string | TREE_MF of string | TREE_MFB of string * string
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let rec make_mathml_tree = function
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TREE_MN a::otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MN,b))::itr -> make_mathml_tree(TREE_MN (a^b)::otr,itr)
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| otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MN,a))::itr -> make_mathml_tree(TREE_MN a::otr,itr)
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| otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MO,a))::itr -> make_mathml_tree(TREE_MO a::otr,itr)
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| otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MI,a))::itr -> make_mathml_tree(TREE_MI a::otr,itr)
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| otr,TEX_LITERAL(MHTMLABLEC(_,_,_,MF,a))::itr -> make_mathml_tree(TREE_MF a::otr,itr)
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| otr,TEX_LITERAL(MHTMLABLEFC(_,_,_,MF,a,b))::itr -> make_mathml_tree(TREE_MFB (a,b)::otr,itr)
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| otr,TEX_CURLY(crl)::itr -> make_mathml_tree(otr,crl@itr)
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| otr,[] -> List.rev otr
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| _ -> failwith "failed to render mathml"
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let render_mathml_tree = function
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TREE_MN s -> "<mn>"^s^"</mn>"
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| TREE_MI s -> "<mi>"^s^"</mi>"
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| TREE_MO s -> "<mo>"^s^"</mo>"
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| TREE_MF s -> "<mi>"^s^" </mi>"
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| TREE_MFB (s,b) -> "<mi>"^s^"</mi>"^"<mo>"^b^"</mo>"
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let render tree = try Some (Util.mapjoin render_mathml_tree (make_mathml_tree ([],tree))) with _ -> None
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