+++ /dev/null
-(* Copyright (C) 2000-2005, HELM Team.
- *
- * This file is part of HELM, an Hypertextual, Electronic
- * Library of Mathematics, developed at the Computer Science
- * Department, University of Bologna, Italy.
- *
- * HELM is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * HELM is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with HELM; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- *
- * For details, see the HELM World-Wide-Web page,
- * http://cs.unibo.it/helm/.
- *)
-
-(*************************************************************************)
-(* *)
-(* PROJECT HELM *)
-(* *)
-(* Andrea Asperti <asperti@cs.unibo.it> *)
-(* 13/2/2004 *)
-(* *)
-(*************************************************************************)
-
-type
- 'expr box =
- Text of attr * string
- | Space of attr
- | Ink of attr
- | H of attr * ('expr box) list
- | V of attr * ('expr box) list
- | HV of attr * ('expr box) list
- | HOV of attr * ('expr box) list
- | Object of attr * 'expr
- | Action of attr * ('expr box) list
-
-and attr = (string option * string * string) list
-
-let smallskip = Space([None,"width","0.5em"]);;
-let skip = Space([None,"width","1em"]);;
-
-let indent t = H([],[skip;t]);;
-
-(* BoxML prefix *)
-let prefix = "b";;
-
-let tag_of_box = function
- | H _ -> "h"
- | V _ -> "v"
- | HV _ -> "hv"
- | HOV _ -> "hov"
- | _ -> assert false
-
-let box2xml ~obj2xml box =
- let rec aux =
- let module X = Xml in
- function
- Text (attr,s) -> X.xml_nempty ~prefix "text" attr (X.xml_cdata s)
- | Space attr -> X.xml_empty ~prefix "space" attr
- | Ink attr -> X.xml_empty ~prefix "ink" attr
- | H (attr,l)
- | V (attr,l)
- | HV (attr,l)
- | HOV (attr,l) as box ->
- X.xml_nempty ~prefix (tag_of_box box) attr
- [< (List.fold_right (fun x i -> [< (aux x) ; i >]) l [<>])
- >]
- | Object (attr,m) ->
- X.xml_nempty ~prefix "obj" attr [< obj2xml m >]
- | Action (attr,l) ->
- X.xml_nempty ~prefix "action" attr
- [< (List.fold_right (fun x i -> [< (aux x) ; i >]) l [<>]) >]
- in
- aux box
-;;
-
-let rec map f = function
- | (Text _) as box -> box
- | (Space _) as box -> box
- | (Ink _) as box -> box
- | H (attr, l) -> H (attr, List.map (map f) l)
- | V (attr, l) -> V (attr, List.map (map f) l)
- | HV (attr, l) -> HV (attr, List.map (map f) l)
- | HOV (attr, l) -> HOV (attr, List.map (map f) l)
- | Action (attr, l) -> Action (attr, List.map (map f) l)
- | Object (attr, obj) -> Object (attr, f obj)
-;;
-
-(*
-let document_of_box ~obj2xml pres =
- [< Xml.xml_cdata "<?xml version=\"1.0\" encoding=\"ISO-8859-1\"?>\n" ;
- Xml.xml_cdata "\n";
- Xml.xml_nempty ~prefix "box"
- [Some "xmlns","m","http://www.w3.org/1998/Math/MathML" ;
- Some "xmlns","b","http://helm.cs.unibo.it/2003/BoxML" ;
- Some "xmlns","helm","http://www.cs.unibo.it/helm" ;
- Some "xmlns","xlink","http://www.w3.org/1999/xlink"
- ] (print_box pres)
- >]
-*)
-
-let b_h a b = H(a,b)
-let b_v a b = V(a,b)
-let b_hv a b = HV(a,b)
-let b_hov a b = HOV(a,b)
-let b_text a b = Text(a,b)
-let b_object b = Object ([],b)
-let b_indent = indent
-let b_space = Space [None, "width", "0.5em"]
-let b_kw = b_text (RenderingAttrs.object_keyword_attributes `BoxML)
-
-let pp_attr attr =
- let pp (ns, n, v) =
- Printf.sprintf "%s%s=%s" (match ns with None -> "" | Some s -> s ^ ":") n v
- in
- String.concat " " (List.map pp attr)
-
-let get_attr = function
- | Text (attr, _)
- | Space attr
- | Ink attr
- | H (attr, _)
- | V (attr, _)
- | HV (attr, _)
- | HOV (attr, _)
- | Object (attr, _)
- | Action (attr, _) ->
- attr
-
-let set_attr attr = function
- | Text (_, x) -> Text (attr, x)
- | Space _ -> Space attr
- | Ink _ -> Ink attr
- | H (_, x) -> H (attr, x)
- | V (_, x) -> V (attr, x)
- | HV (_, x) -> HV (attr, x)
- | HOV (_, x) -> HOV (attr, x)
- | Object (_, x) -> Object (attr, x)
- | Action (_, x) -> Action (attr, x)
-
projects / helm.git / blobdiff