Github user garydgregory commented on a diff in the pull request:
https://github.com/apache/commons-lang/pull/273#discussion_r161278687
--- Diff: src/main/java/org/apache/commons/lang3/StringUtils.java ---
@@ -2122,6 +2122,81 @@ public static int indexOfAny(final CharSequence cs,
final String searchChars) {
return indexOfAny(cs, searchChars.toCharArray());
}
+ /**
+ * <p>Search a CharSequence to find the last index of any
+ * character in the given set of characters.</p>
+ *
+ * <p>A {@code null} String will return {@code -1}.
+ * A {@code null} search string will return {@code -1}.</p>
+ *
+ * <pre>
+ * StringUtils.lastIndexOfAnyChar(null, *) = -1
+ * StringUtils.lastIndexOfAnyChar("", *) = -1
+ * StringUtils.lastIndexOfAnyChar(*, null) = -1
+ * StringUtils.lastIndexOfAnyChar(*, "") = -1
+ * StringUtils.lastIndexOfAnyChar("zzabyycdxx", "za") = 2
+ * StringUtils.lastIndexOfAnyChar("zzabyycdxx", "by") = 5
+ * StringUtils.lastIndexOfAnyChar("ab", 'a') = 0
+ * StringUtils.lastIndexOfAnyChar("ab", 'b') = 1
+ * StringUtils.lastIndexOfAnyChar("aba","z") = -1
+ * </pre>
+ *
+ * @param cs the CharSequence to check, may be null
+ * @param searchChars the chars to search for, may be null
+ * @return the last index of any of the chars, -1 if no match or null
input
+ */
+ public static int lastIndexOfAnyChar( final CharSequence cs,final
String searchChars) {
+ return searchChars == null ? INDEX_NOT_FOUND :
lastIndexOfAnyChar(cs,searchChars.toCharArray());
+ }
+
+ /**
+ * <p>Search a CharSequence to find the last index of any
+ * character in the given set of characters.</p>
+ *
+ * <p>A {@code null} String will return {@code -1}.
+ * A {@code null} or zero length search array will return {@code
-1}.</p>
+ *
+ * <pre>
+ * StringUtils.lastIndexOfAnyChar(null, *) = -1
+ * StringUtils.lastIndexOfAnyChar("", *) = -1
+ * StringUtils.lastIndexOfAnyChar(*, null) = -1
+ * StringUtils.lastIndexOfAnyChar(*, []) = -1
+ * StringUtils.lastIndexOfAnyChar("zzabyycdxx",['z','a']) = 2
+ * StringUtils.lastIndexOfAnyChar("zzabyycdxx",['b','y']) = 5
+ * StringUtils.lastIndexOfAnyChar("aba", ['z']) = -1
+ * </pre>
+ *
+ * @param cs the CharSequence to check, may be null
+ * @param searchChars the chars to search for, may be null
+ * @return the last index of any of the chars, -1 if no match or null
input
+ */
+ public static int lastIndexOfAnyChar( final CharSequence cs,final
char... searchChars) {
--- End diff --
Fix formatting.
---
