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1 /*
2  * The Apache Software License, Version 1.1
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4  *
5  * Copyright (c) 1999-2002 The Apache Software Foundation. All rights
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24  * Alternately, this acknowledgment may appear in the software itself,
25  * if and wherever such third-party acknowledgments normally appear.
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50  * This software consists of voluntary contributions made by many
51  * individuals on behalf of the Apache Software Foundation and was
52  * originally based on software copyright (c) 1999, International
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57
58 package com.sun.org.apache.xerces.internal.impl.dv.dtd;
59
60 import com.sun.org.apache.xerces.internal.impl.dv.*;
61 import com.sun.org.apache.xerces.internal.util.XML11Char;
62
63 /**
64  * <P>IDDatatypeValidator - ID represents the ID attribute
65  * type from XML 1.1 Recommendation. The value space
66  * of ID is the set of all strings that match the
67  * NCName production and have been used in an XML
68  * document. The lexical space of ID is the set of all
69  * strings that match the NCName production.</P>
70  * <P>The value space of ID is scoped to a specific
71  * instance document.</P>
72  * <P>The following constraint applies:
73  * An ID must not appear more than once in an XML
74  * document as a value of this type; i.e., ID values
75  * must uniquely identify the elements which bear
76  * them.</P>
77  *
78  * @author Jeffrey Rodriguez, IBM
79  * @author Sandy Gao, IBM
80  * @author Neil Graham, IBM
81  *
82  * @version $Id: XML11IDDatatypeValidator.java,v 1.2 2003/06/05 21:51:32 neilg Exp $
83  */

84 public class XML11IDDatatypeValidator extends IDDatatypeValidator {
85
86     // construct an ID datatype validator
87
public XML11IDDatatypeValidator() {
88         super();
89     }
90
91     /**
92      * Checks that "content" string is valid ID value.
93      * If invalid a Datatype validation exception is thrown.
94      *
95      * @param content the string value that needs to be validated
96      * @param context the validation context
97      * @throws InvalidDatatypeException if the content is
98      * invalid according to the rules for the validators
99      * @see InvalidDatatypeValueException
100      */

101     public void validate(String JavaDoc content, ValidationContext context) throws InvalidDatatypeValueException {
102
103         //Check if is valid key-[81] EncName ::= [A-Za-z] ([A-Za-z0-9._] | '-')*
104
if(context.useNamespaces()) {
105             if (!XML11Char.isXML11ValidNCName(content)) {
106                 throw new InvalidDatatypeValueException("IDInvalidWithNamespaces", new Object JavaDoc[]{content});
107             }
108         }
109         else {
110             if (!XML11Char.isXML11ValidName(content)) {
111                 throw new InvalidDatatypeValueException("IDInvalid", new Object JavaDoc[]{content});
112             }
113         }
114
115         if (context.isIdDeclared(content)) {
116             throw new InvalidDatatypeValueException("IDNotUnique", new Object JavaDoc[]{content});
117         }
118         
119         context.addId(content);
120     }
121     
122 }
123
124
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