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package com.earth2me.essentials.utils;
import java.util.*;
import java.util.regex.Pattern;
public class StringUtil
{
private static final Pattern INVALIDFILECHARS = Pattern.compile("[^a-z0-9-]");
private static final 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("");
}
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();
}
private StringUtil()
{
}
}
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