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1   ////////////////////////////////////////////////////////////////////////////////
2   // MillScript: an Open Spice interpreter and batch website creation tool
3   // Copyright (C) 2005 Kevin Rogers
4   //
5   // This file is part of MillScript.
6   //
7   // MillScript is free software; you can redistribute it and/or modify it under
8   // the terms of the GNU General Public License as published by the Free
9   // Software Foundation; either version 2 of the License, or (at your option)
10  // any later version.
11  //
12  // MillScript is distributed in the hope that it will be useful, but WITHOUT
13  // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14  // FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
15  // more details.
16  //
17  // You should have received a copy of the GNU General Public License along with
18  // MillScript; if not, write to the Free Software Foundation, Inc., 59 Temple
19  // Place, Suite 330, Boston, MA  02111-1307  USA
20  ////////////////////////////////////////////////////////////////////////////////
21  package org.millscript.millscript.loaders;
22  
23  import org.millscript.commons.xml.api.Name;
24  import org.millscript.commons.xml.tokenizer.NoNamespacesName;
25  import org.millscript.millscript.expr.ConstantExpr;
26  import org.millscript.millscript.expr.IndexExpr;
27  import org.millscript.millscript.expr.NameExpr;
28  
29  /**
30   * This class compiles a field element in a MillScript XHTML skeleton. A field
31   * element is called <code>field</code> and has a single attribute called
32   * <code>name</code>.
33   */
34  public class FieldName implements SpecialTemplateName {
35  
36      /**
37       * This name is used to obtain the value of the name attribute of the
38       * field element.
39       */
40      private static final Name FIELD_NAME_ARG = new NoNamespacesName( "name" );
41  
42      /**
43       * The loader we will insert our expressions into.
44       */
45      private final BasicTemplateLoader basicTemplateLoader;
46  
47      /**
48       * Constructs a new shortcut argument element handler, to insert
49       * expressions for the specified argument number into the specified loader.
50       *
51       * @param btl   the loader to insert expressions into
52       */
53      public FieldName( final BasicTemplateLoader btl ) {
54          this.basicTemplateLoader = btl;
55      }
56  
57      /**
58       * @see org.millscript.millscript.loaders.SpecialTemplateName#handle()
59       */
60      public void handle() {
61          // Make the Expr for this XML element and push it into the parent
62          // elements body.
63          this.basicTemplateLoader.tokenVisitor.parentTokenVisitor.pushChildElement(
64              // arg[ s ]
65              IndexExpr.make(
66                  new NameExpr( "arg" ),
67                  new ConstantExpr(
68                      this.basicTemplateLoader.tokenVisitor.startTagToken.getAttributes().get( FIELD_NAME_ARG )
69                  )
70              )
71          );
72      }
73  
74  }