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XMLTagAbstract.java
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XMLTagAbstract.java
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/* Synth Patch Conversion
* Copyright (C) 2003-4, Kenneth L. Martinez (kmartin@users.sourceforge.net)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
package PatchConversion;
public abstract class XMLTagAbstract implements XMLTag {
protected String name;
protected String attr;
XMLTagAbstract(String pName) {
name = pName;
}
XMLTagAbstract(String pName, String pAttr) {
name = pName;
attr = pAttr;
}
public boolean readXML(String xml) throws PatchDefinitionException {
int start, end, valueStart;
start = xml.indexOf("<" + name);
if (start == -1) {
System.out.println("begin tag <" + name + "> not found");
return false;
}
if (attr == null) {
valueStart = start + name.length() + 2;
} else {
start = xml.indexOf(attr + ">");
if (start == -1) {
System.out.println("attribute '" + attr + "' for begin tag <" +
name + "> not found");
return false;
} else {
valueStart = start + attr.length() + 1;
}
}
end = xml.indexOf("</" + name + ">");
if (end == -1) {
System.out.println("end tag </" + name + "> not found");
return false;
}
String s = xml.substring(valueStart, end);
readValue(s);
return true;
}
void readValue(String s) throws PatchDefinitionException {
throw new PatchDefinitionException("This function of abstract class should never be used");
}
public String writeXML() throws PatchDefinitionException {
StringBuffer sb = new StringBuffer("<" + name);
if (attr == null) {
sb.append(">");
} else {
sb.append(" " + attr + ">");
}
sb.append(writeValue());
sb.append("</" + name + ">");
return sb.toString();
}
String writeValue() throws PatchDefinitionException {
throw new PatchDefinitionException("This function of abstract class should never be used");
}
}