[GitHub] [commons-lang] arturobernalg commented on a change in pull request #645: [LANG-1614] - Split fixed-length elements

[GitBox <gi...@apache.org>]

arturobernalg commented on a change in pull request #645:
URL: https://github.com/apache/commons-lang/pull/645#discussion_r528168674



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File path: src/main/java/org/apache/commons/lang3/StringUtils.java
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@@ -7731,6 +7731,48 @@ public static String rotate(final String str, final int shift) {
         return substrings.toArray(ArrayUtils.EMPTY_STRING_ARRAY);
     }
 
+    /**
+     * Split a {@link String} into a {@code String []} of fixed-length elements.
+     *
+     * <pre>
+     * StringUtils.splitEvery("test1",10)             = ["test1"]
+     * StringUtils.splitEvery("test2", 4)             = ["test","2"]
+     * StringUtils.splitEvery("testAbgTestsABG", -2)  = ["testAbgTestsABG"]
+     * StringUtils.splitEvery("",10)                  = [""]
+     * StringUtils.splitEvery(null,4)                 = {@code null}
+     * StringUtils.splitEvery("testAbgTestsABG",2)    = ["te","st","Ab","gT","es","ts","AB","G"]
+     * </pre>
+     *
+     * @param str {@link String} to split into fixed length elements.
+     * @param length length of the elements into which the String will be divided.
+     * @return a {@code String []} of fixed-length elements.
+     */
+    public static String[] splitEvery( final String str, final int length ) {

Review comment:
       Hi 
   
   usually in the others method return null . An. example of that -->
   
   `  public static String abbreviateMiddle(final String str, final String middle, final int length) {
           if (isAnyEmpty(str, middle) || length >= str.length() || length < middle.length()+2) {
               return str;
           }`




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