OpenConcerto

Dépôt officiel du code source de l'ERP OpenConcerto
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svn://code.openconcerto.org/openconcerto

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174 ilm 1 
/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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 *
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 * Copyright 2011 OpenConcerto, by ILM Informatique. All rights reserved.
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 *
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 * The contents of this file are subject to the terms of the GNU General Public License Version 3
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 * only ("GPL"). You may not use this file except in compliance with the License. You can obtain a
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 * copy of the License at http://www.gnu.org/licenses/gpl-3.0.html See the License for the specific
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 * language governing permissions and limitations under the License.
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 *
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 * When distributing the software, include this License Header Notice in each file.
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 */
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 package org.openconcerto.xml;
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import javax.xml.stream.XMLStreamConstants;
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import javax.xml.stream.XMLStreamException;
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import javax.xml.stream.XMLStreamReader;
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public class XMLUtils {
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    public static final String escapeAttribute(final String value) {
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        final int len = value.length();
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        int idx = 0;
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        checkloop: while (idx < len) {
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            final char ch = value.charAt(idx);
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            if (ch == '<' || ch == '>' || ch == '&' || ch == '\r' || ch == '\n' || ch == '"' || ch == '\t') {
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                break checkloop;
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            }
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            idx++;
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        }
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        if (idx == len) {
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            return value;
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        }
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        final StringBuilder sb = new StringBuilder(len + 5);
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        sb.append(value, 0, idx);
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        while (idx < len) {
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            final char ch = value.charAt(idx++);
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            switch (ch) {
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            case '<':
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                sb.append("&lt;");
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                break;
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            case '>':
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                sb.append("&gt;");
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                break;
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            case '&':
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                sb.append("&amp;");
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                break;
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            case '\r':
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                sb.append("&#xD;");
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                break;
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            case '"':
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                sb.append("&quot;");
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                break;
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            case '\t':
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                sb.append("&#x9;");
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                break;
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            case '\n':
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                sb.append("&#xA;");
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                break;
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            default:
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                sb.append(ch);
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                break;
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            }
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        }
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        return sb.toString();
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    }
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    public static final String escapeText(final String value) {
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        final int right = value.length();
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        int idx = 0;
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        checkloop: while (idx < right) {
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            final char ch = value.charAt(idx);
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            if (ch == '<' || ch == '>' || ch == '&' || ch == '\r' || ch == '\n') {
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                break checkloop;
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            }
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            idx++;
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        }
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        if (idx == right) {
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            // no escape needed.
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            return value;
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        }
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        final StringBuilder sb = new StringBuilder();
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        if (idx > 0) {
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            sb.append(value, 0, idx);
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        }
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        while (idx < right) {
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            final char ch = value.charAt(idx++);
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            switch (ch) {
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            case '<':
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                sb.append("&lt;");
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                break;
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            case '>':
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                sb.append("&gt;");
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                break;
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            case '&':
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                sb.append("&amp;");
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                break;
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            case '\r':
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                sb.append("&#xD;");
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                break;
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            case '\n':
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                sb.append('\n');
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                break;
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            default:
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                sb.append(ch);
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                break;
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            }
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        }
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        return sb.toString();
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    }
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    public static final void skipToEndElement(final XMLStreamReader reader) throws XMLStreamException {
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        if (!reader.isStartElement())
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            throw new IllegalStateException("Not at a start of an element : " + reader.getEventType() + ", " + reader.getLocation());
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        final String name = reader.getLocalName();
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        int depth = 1;
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        while (!(depth == 0 && reader.isEndElement() && reader.getLocalName().equals(name))) {
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            final int eventType = reader.next();
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            if (eventType == XMLStreamConstants.START_ELEMENT)
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                depth++;
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            else if (eventType == XMLStreamConstants.END_ELEMENT)
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                depth--;
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        }
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    }
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}