| /******************************************************************************* |
| * Copyright (c) 2011 Mukul Gandhi, and others |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Mukul Gandhi - bug 334478 - implementation of xs:token data type |
| *******************************************************************************/ |
| |
| package org.eclipse.wst.xml.xpath2.processor.internal.types; |
| |
| import org.eclipse.wst.xml.xpath2.api.Item; |
| import org.eclipse.wst.xml.xpath2.api.ResultBuffer; |
| import org.eclipse.wst.xml.xpath2.api.ResultSequence; |
| import org.eclipse.wst.xml.xpath2.api.typesystem.TypeDefinition; |
| import org.eclipse.wst.xml.xpath2.processor.DynamicError; |
| import org.eclipse.wst.xml.xpath2.processor.internal.types.builtin.BuiltinTypeLibrary; |
| |
| /** |
| * A representation of the xs:token datatype |
| */ |
| public class XSToken extends XSNormalizedString { |
| |
| private static final String XS_TOKEN = "xs:token"; |
| |
| /** |
| * Initialises using the supplied String |
| * |
| * @param x |
| * The String to initialise to |
| */ |
| public XSToken(String x) { |
| super(x); |
| } |
| |
| /** |
| * Initialises to null |
| */ |
| public XSToken() { |
| this(null); |
| } |
| |
| /** |
| * Retrieves the datatype's full pathname |
| * |
| * @return "xs:token" which is the datatype's full pathname |
| */ |
| public String string_type() { |
| return XS_TOKEN; |
| } |
| |
| /** |
| * Retrieves the datatype's name |
| * |
| * @return "token" which is the datatype's name |
| */ |
| public String type_name() { |
| return "token"; |
| } |
| |
| /** |
| * Creates a new ResultSequence consisting of the extractable String in the |
| * supplied ResultSequence |
| * |
| * @param arg |
| * The ResultSequence from which to extract the String |
| * @return New ResultSequence consisting of the supplied String |
| * @throws DynamicError |
| */ |
| public ResultSequence constructor(ResultSequence arg) throws DynamicError { |
| if (arg.empty()) |
| return ResultBuffer.EMPTY; |
| |
| Item aat = arg.first(); |
| |
| String srcString = aat.getStringValue(); |
| if (!isSatisfiesConstraints(srcString)) { |
| // invalid input |
| DynamicError.throw_type_error(); |
| } |
| |
| return new XSToken(srcString); |
| } |
| |
| /* |
| * Does the string in context satisfies constraints of the datatype, xs:token. |
| */ |
| protected boolean isSatisfiesConstraints(String srcString) { |
| |
| boolean isToken = true; |
| |
| // satisfies constraints of xs:normalizedString and additionally must satisfy the condition, |
| // the string must not have leading or trailing spaces and that have no internal sequences of two or more spaces. |
| if (!super.isSatisfiesConstraints(srcString) || srcString.startsWith(" ") || |
| srcString.endsWith(" ") || srcString.indexOf(" ") != -1) { |
| isToken = false; |
| } |
| |
| return isToken; |
| |
| } // isSatisfiesConstraints |
| |
| public TypeDefinition getTypeDefinition() { |
| return BuiltinTypeLibrary.XS_TOKEN; |
| } |
| |
| } |