Find the earliest index of any of a set of potential substrings.
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/**
* max: Removed methods that dependent on anything else than common.StringUtils.
*
* <p>Common <code>String</code> manipulation routines.</p>
*
* <p>Originally from
* <a href="http://jakarta.apache.org/turbine/">Turbine</a> and the
* GenerationJavaCore library.</p>
*
* @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a>
* @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a>
* @author <a href="mailto:gcoladonato@yahoo.com">Greg Coladonato</a>
* @author <a href="mailto:bayard@generationjava.com">Henri Yandell</a>
* @author <a href="mailto:ed@apache.org">Ed Korthof</a>
* @author <a href="mailto:rand_mcneely@yahoo.com>Rand McNeely</a>
* @author <a href="mailto:scolebourne@joda.org>Stephen Colebourne</a>
* @author <a href="mailto:fredrik@westermarck.com>Fredrik Westermarck</a>
* @version $Id$
*/
public class StringUtil {
/**
* Find the earliest index of any of a set of potential substrings.
* Null string will return -1.
*
* @param str the string to check
* @param searchStrs the strings to search for
* @return the earliest index of any of the strings
* @throws NullPointerException if any of searchStrs[i] is null
*/
public static int indexOfAny(String str, String[] searchStrs) {
if ( (str == null) || (searchStrs == null) ) {
return -1;
}
int sz = searchStrs.length;
// String's can't have a MAX_VALUEth index.
int ret = Integer.MAX_VALUE;
int tmp = 0;
for (int i = 0; i < sz; i++) {
tmp = str.indexOf(searchStrs[i]);
if (tmp == -1) {
continue;
}
if (tmp < ret) {
ret = tmp;
}
}
return (ret == Integer.MAX_VALUE) ? -1 : ret;
}
}
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