/* * MACAddressParserTest.java * * Created 30.01.2006. * * eaio: UUID - an implementation of the UUID specification * Copyright (c) 2003-2009 Johann Burkard (jb@eaio.com) http://eaio.com. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN * NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * */ package com.eaio.uuid; /** * The MAC address parser attempts to find the following patterns: *
null
* @return the substring that matches this pattern or null
*/
static String parse(String in) {
String out = in;
// lanscan
int hexStart = out.indexOf("0x");
if (hexStart != -1 && out.indexOf("ETHER") != -1) {
int hexEnd = out.indexOf(' ', hexStart);
if (hexEnd > hexStart + 2) {
out = out.substring(hexStart, hexEnd);
}
}
else {
int octets = 0;
int lastIndex, old, end;
if (out.indexOf('-') > -1) {
out = out.replace('-', ':');
}
lastIndex = out.lastIndexOf(':');
if (lastIndex > out.length() - 2) {
out = null;
}
else {
end = Math.min(out.length(), lastIndex + 3);
++octets;
old = lastIndex;
while (octets != 5 && lastIndex != -1 && lastIndex > 1) {
lastIndex = out.lastIndexOf(':', --lastIndex);
if (old - lastIndex == 3 || old - lastIndex == 2) {
++octets;
old = lastIndex;
}
}
if (octets == 5 && lastIndex > 1) {
out = out.substring(lastIndex - 2, end).trim();
}
else {
out = null;
}
}
}
if (out != null && out.startsWith("0x")) {
out = out.substring(2);
}
return out;
}
}