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package com.earth2me.essentials;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import java.util.Collection;
import java.util.Locale;
import java.util.regex.Pattern;
public class Util
{
private Util()
{
}
private final static Pattern INVALIDFILECHARS = Pattern.compile("[^a-z0-9]");
private final static Pattern INVALIDCHARS = Pattern.compile("[^\t\n\r\u0020-\u007E\u0085\u00A0-\uD7FF\uE000-\uFFFC]");
//Used to clean file names before saving to disk
public static String sanitizeFileName(final String name)
{
return safeString(name);
}
//Used to clean strings/names before saving as filenames/permissions
public static String safeString(final String string)
{
return INVALIDFILECHARS.matcher(string.toLowerCase(Locale.ENGLISH)).replaceAll("_");
}
//Less restrictive string sanitizing, when not used as perm or filename
public static String sanitizeString(final String string)
{
return INVALIDCHARS.matcher(string).replaceAll("");
}
private static DecimalFormat dFormat = new DecimalFormat("#0.00", DecimalFormatSymbols.getInstance(Locale.US));
public static String formatAsCurrency(final double value)
{
String str = dFormat.format(value);
if (str.endsWith(".00"))
{
str = str.substring(0, str.length() - 3);
}
return str;
}
public static double roundDouble(final double d)
{
return Math.round(d * 100.0) / 100.0;
}
public static boolean isInt(final String sInt)
{
try
{
Integer.parseInt(sInt);
}
catch (NumberFormatException e)
{
return false;
}
return true;
}
public static String joinList(Object... list)
{
return joinList(", ", list);
}
public static String joinList(String seperator, Object... list)
{
StringBuilder buf = new StringBuilder();
for (Object each : list)
{
if (buf.length() > 0)
{
buf.append(seperator);
}
if (each instanceof Collection)
{
buf.append(joinList(seperator, ((Collection)each).toArray()));
}
else
{
try
{
buf.append(each.toString());
}
catch (Exception e)
{
buf.append(each.toString());
}
}
}
return buf.toString();
}
public static String lastCode(final String input)
{
int pos = input.lastIndexOf("§");
if (pos == -1 || (pos + 1) == input.length())
{
return "";
}
return input.substring(pos, pos + 2);
}
}
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