1 ////////////////////////////////////////////////////////////////////////////////
2 // MillScript: an Open Spice interpreter and batch website creation tool
3 // Copyright (C) 2001-2004 Open World Ltd
4 // Copyright (C) 2005 Kevin Rogers
5 //
6 // This file is part of MillScript.
7 //
8 // MillScript is free software; you can redistribute it and/or modify it under
9 // the terms of the GNU General Public License as published by the Free
10 // Software Foundation; either version 2 of the License, or (at your option)
11 // any later version.
12 //
13 // MillScript is distributed in the hope that it will be useful, but WITHOUT
14 // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
16 // more details.
17 //
18 // You should have received a copy of the GNU General Public License along with
19 // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
20 // Place, Suite 330, Boston, MA 02111-1307 USA
21 ////////////////////////////////////////////////////////////////////////////////
22 package org.millscript.millscript.functions;
23
24 import org.millscript.commons.xml.api.tokenizer.XmlTokenizer;
25 import org.millscript.commons.xml.tokenizer.XmlTokenizerFactory;
26 import org.millscript.millscript.vm.Machine;
27
28 import java.io.StringReader;
29
30 /**
31 * This class implements the MillScript <code>stringToFragment</code> function.
32 */
33 public class StringToXMLFunction extends Function {
34
35 /**
36 * The XML tokenizer factory we can use to get an XML tokenizer for the
37 * XML.
38 */
39 private final XmlTokenizerFactory factory = new XmlTokenizerFactory();
40
41 /**
42 * The current token visitor we can use to construct our internal
43 * representations.
44 */
45 StringToXMLTokenVisitor tokenVisitor;
46
47 /**
48 * @see org.millscript.millscript.functions.Function#apply(org.millscript.millscript.vm.Machine, int)
49 */
50 @Override
51 public void apply( final Machine mc, final int nargs ) {
52 checkNargs( mc, 1, nargs );
53 // We need a well-formed XmlTokenizer
54 final XmlTokenizer xmlTokenizer = this.factory.getTokenizer(
55 new StringReader( mc.popString() )
56 );
57 // Make the special string to XML token visitor
58 this.tokenVisitor = new StringToXMLTokenVisitor( this, null, null, mc );
59 // Loop through all the tokens in the XML and return the related values
60 while ( xmlTokenizer.hasNextToken() ) {
61 xmlTokenizer.nextToken().visit( this.tokenVisitor );
62 }
63 // Report any left over errors, e.g. unclosed tags
64 this.tokenVisitor.reportAnyErrors();
65 }
66
67 }