+++ /dev/null
-(* Copyright (C) 2000, 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 *)
-(* *)
-(* A tactic to print Coq objects in XML *)
-(* *)
-(* Claudio Sacerdoti Coen <sacerdot@cs.unibo.it> *)
-(* 18/10/2000 *)
-(* *)
-(* This module defines a pretty-printer and the stream of commands to the pp *)
-(* *)
-(******************************************************************************)
-
-
-(* the type token for XML cdata, empty elements and not-empty elements *)
-(* Usage: *)
-(* Str cdata *)
-(* Empty (prefix, element_name, *)
-(* [prefix1, attrname1, value1 ; ... ; prefixn, attrnamen, valuen] *)
-(* NEmpty (prefix, element_name, *)
-(* [prefix1, attrname1, value1 ; ... ; prefixn, attrnamen, valuen], *)
-(* content *)
-type token =
- Str of string
- | Empty of string option * string * (string option * string * string) list
- | NEmpty of string option * string * (string option * string * string) list *
- token Stream.t
-;;
-
-(* currified versions of the constructors make the code more readable *)
-let xml_empty ?prefix name attrs =
- [< 'Empty(prefix,name,attrs) >]
-let xml_nempty ?prefix name attrs content =
- [< 'NEmpty(prefix,name,attrs,content) >]
-let xml_cdata str =
- [< 'Str str >]
-
-(** low level for other PPs: pretty print each token of strm applying 'f' to a
-canonical string representation of each token *)
-let pp_gen f strm =
- let pprefix =
- function
- None -> ""
- | Some p -> p ^ ":" in
- let rec pp_r m =
- parser
- | [< 'Str a ; s >] ->
- print_spaces m ;
- f (a ^ "\n") ;
- pp_r m s
- | [< 'Empty(p,n,l) ; s >] ->
- print_spaces m ;
- f ("<" ^ (pprefix p) ^ n) ;
- List.iter (fun (p,n,v) -> f (" " ^ (pprefix p) ^ n ^ "=\"" ^ v ^ "\"")) l;
- f "/>\n" ;
- pp_r m s
- | [< 'NEmpty(p,n,l,c) ; s >] ->
- print_spaces m ;
- f ("<" ^ (pprefix p) ^ n) ;
- List.iter (fun (p,n,v) -> f (" " ^ (pprefix p) ^ n ^ "=\"" ^ v ^ "\"")) l;
- f ">\n" ;
- pp_r (m+1) c ;
- print_spaces m ;
- f ("</" ^ (pprefix p) ^ n ^ ">\n") ;
- pp_r m s
- | [< >] -> ()
- and print_spaces m =
- for i = 1 to m do f " " done
- in
- pp_r 0 strm
-;;
-
-(** pretty printer on output channels *)
-let pp_to_outchan strm oc =
- pp_gen (fun s -> output_string oc s) strm;
- flush oc
-;;
-
-(** pretty printer to string *)
-let pp_to_string strm =
- let buf = Buffer.create 10240 in
- pp_gen (Buffer.add_string buf) strm;
- Buffer.contents buf
-;;
-
-(** pretty printer to file *)
-(* Usage: *)
-(* pp tokens None pretty prints the output on stdout *)
-(* pp tokens (Some filename) pretty prints the output on the file filename *)
-let pp ?(quiet=false) strm fn =
- match fn with
- | Some filename ->
- let outchan = open_out filename in
- (try
- pp_to_outchan strm outchan;
- with e ->
- close_out outchan;
- raise e);
- close_out outchan;
- if not quiet then
- begin
- print_string ("\nWriting on file \"" ^ filename ^
- "\" was succesfull\n");
- flush stdout
- end
- | None -> pp_to_outchan strm stdout
-;;
projects / helm.git / blobdiff