diff --git a/src/java/org/apache/commons/lang/StringUtils.java b/src/java/org/apache/commons/lang/StringUtils.java index 09c16bb03..4bedf4922 100644 --- a/src/java/org/apache/commons/lang/StringUtils.java +++ b/src/java/org/apache/commons/lang/StringUtils.java @@ -144,7 +144,7 @@ import java.util.List; * @author Gary Gregory * @author Phil Steitz * @since 1.0 - * @version $Id: StringUtils.java,v 1.90 2003/08/01 23:54:41 scolebourne Exp $ + * @version $Id: StringUtils.java,v 1.91 2003/08/01 23:58:30 scolebourne Exp $ */ public class StringUtils { // Performance testing notes (JDK 1.4, Jul03, scolebourne) @@ -1011,107 +1011,6 @@ public class StringUtils { return (str.indexOf(searchStr) >= 0); } - // IndexOfAny strings - //----------------------------------------------------------------------- - /** - *

Find the first index of any of a set of potential substrings.

- * - *

A null String will return -1. - * A null or zero length search array will return -1. - * A null search array entry will be ignored, but a search - * array containing "" will return 0 if str is not - * null. This method uses {@link String#indexOf(String)}.

- * - *
-     * StringUtils.indexOfAny(null, *)                     = -1
-     * StringUtils.indexOfAny(*, null)                     = -1
-     * StringUtils.indexOfAny(*, [])                       = -1
-     * StringUtils.indexOfAny("zzabyycdxx", ["ab","cd"])   = 2
-     * StringUtils.indexOfAny("zzabyycdxx", ["cd","ab"])   = 2
-     * StringUtils.indexOfAny("zzabyycdxx", ["mn","op"])   = -1
-     * StringUtils.indexOfAny("zzabyycdxx", ["zab","aby"]) = 1
-     * StringUtils.indexOfAny("zzabyycdxx", [""])          = 0
-     * StringUtils.indexOfAny("", [""])                    = 0
-     * StringUtils.indexOfAny("", ["a"])                   = -1
-     * 
- * - * @param str the String to check, may be null - * @param searchStrs the Strings to search for, may be null - * @return the first index of any of the searchStrs in str, -1 if no match - */ - 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++) { - String search = searchStrs[i]; - if (search == null) { - continue; - } - tmp = str.indexOf(search); - if (tmp == -1) { - continue; - } - - if (tmp < ret) { - ret = tmp; - } - } - - return (ret == Integer.MAX_VALUE) ? -1 : ret; - } - - /** - *

Find the latest index of any of a set of potential substrings.

- * - *

A null String will return -1. - * A null search array will return -1. - * A null or zero length search array entry will be ignored, - * but a search array containing "" will return the length of str - * if str is not null. This method uses {@link String#indexOf(String)}

- * - *
-     * StringUtils.lastIndexOfAny(null, *)                   = -1
-     * StringUtils.lastIndexOfAny(*, null)                   = -1
-     * StringUtils.lastIndexOfAny(*, [])                     = -1
-     * StringUtils.lastIndexOfAny(*, [null])                 = -1
-     * StringUtils.lastIndexOfAny("zzabyycdxx", ["ab","cd"]) = 6
-     * StringUtils.lastIndexOfAny("zzabyycdxx", ["cd","ab"]) = 6
-     * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn","op"]) = -1
-     * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn","op"]) = -1
-     * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn",""])   = 10
-     * 
- * - * @param str the String to check, may be null - * @param searchStrs the Strings to search for, may be null - * @return the last index of any of the Strings, -1 if no match - */ - public static int lastIndexOfAny(String str, String[] searchStrs) { - if ((str == null) || (searchStrs == null)) { - return -1; - } - int sz = searchStrs.length; - int ret = -1; - int tmp = 0; - for (int i = 0; i < sz; i++) { - String search = searchStrs[i]; - if (search == null) { - continue; - } - tmp = str.lastIndexOf(search); - if (tmp > ret) { - ret = tmp; - } - } - return ret; - } - // IndexOfAny chars //----------------------------------------------------------------------- /** @@ -1383,6 +1282,107 @@ public class StringUtils { return containsNone(str, invalidChars.toCharArray()); } + // IndexOfAny strings + //----------------------------------------------------------------------- + /** + *

Find the first index of any of a set of potential substrings.

+ * + *

A null String will return -1. + * A null or zero length search array will return -1. + * A null search array entry will be ignored, but a search + * array containing "" will return 0 if str is not + * null. This method uses {@link String#indexOf(String)}.

+ * + *
+     * StringUtils.indexOfAny(null, *)                     = -1
+     * StringUtils.indexOfAny(*, null)                     = -1
+     * StringUtils.indexOfAny(*, [])                       = -1
+     * StringUtils.indexOfAny("zzabyycdxx", ["ab","cd"])   = 2
+     * StringUtils.indexOfAny("zzabyycdxx", ["cd","ab"])   = 2
+     * StringUtils.indexOfAny("zzabyycdxx", ["mn","op"])   = -1
+     * StringUtils.indexOfAny("zzabyycdxx", ["zab","aby"]) = 1
+     * StringUtils.indexOfAny("zzabyycdxx", [""])          = 0
+     * StringUtils.indexOfAny("", [""])                    = 0
+     * StringUtils.indexOfAny("", ["a"])                   = -1
+     * 
+ * + * @param str the String to check, may be null + * @param searchStrs the Strings to search for, may be null + * @return the first index of any of the searchStrs in str, -1 if no match + */ + 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++) { + String search = searchStrs[i]; + if (search == null) { + continue; + } + tmp = str.indexOf(search); + if (tmp == -1) { + continue; + } + + if (tmp < ret) { + ret = tmp; + } + } + + return (ret == Integer.MAX_VALUE) ? -1 : ret; + } + + /** + *

Find the latest index of any of a set of potential substrings.

+ * + *

A null String will return -1. + * A null search array will return -1. + * A null or zero length search array entry will be ignored, + * but a search array containing "" will return the length of str + * if str is not null. This method uses {@link String#indexOf(String)}

+ * + *
+     * StringUtils.lastIndexOfAny(null, *)                   = -1
+     * StringUtils.lastIndexOfAny(*, null)                   = -1
+     * StringUtils.lastIndexOfAny(*, [])                     = -1
+     * StringUtils.lastIndexOfAny(*, [null])                 = -1
+     * StringUtils.lastIndexOfAny("zzabyycdxx", ["ab","cd"]) = 6
+     * StringUtils.lastIndexOfAny("zzabyycdxx", ["cd","ab"]) = 6
+     * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn","op"]) = -1
+     * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn","op"]) = -1
+     * StringUtils.lastIndexOfAny("zzabyycdxx", ["mn",""])   = 10
+     * 
+ * + * @param str the String to check, may be null + * @param searchStrs the Strings to search for, may be null + * @return the last index of any of the Strings, -1 if no match + */ + public static int lastIndexOfAny(String str, String[] searchStrs) { + if ((str == null) || (searchStrs == null)) { + return -1; + } + int sz = searchStrs.length; + int ret = -1; + int tmp = 0; + for (int i = 0; i < sz; i++) { + String search = searchStrs[i]; + if (search == null) { + continue; + } + tmp = str.lastIndexOf(search); + if (tmp > ret) { + ret = tmp; + } + } + return ret; + } + // Substring //----------------------------------------------------------------------- /**