svn ps svn:eol-style native

src/main/java/org/apache/commons/lang3/CharSequenceUtils.java
svn ps svn:eol-style native
src/test/java/org/apache/commons/lang3/CharSequenceUtilsTest.java


git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@966488 13f79535-47bb-0310-9956-ffa450edef68

src/main/java/org/apache/commons/lang3/CharSequenceUtils.java

@@ -1,61 +1,61 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.commons.lang3;
-
-/**
- * Null-safe CharSequence utility methods.
- *
- * @author Gary Gregory
- */
-public class CharSequenceUtils {
-
-    /**
-     * Gets a CharSequence length or <code>0</code> if the CharSequence is
-     * <code>null</code>.
-     *
-     * @param cs
-     *            a CharSequence or <code>null</code>
-     * @return CharSequence length or <code>0</code> if the CharSequence is
-     *         <code>null</code>.
-     * @since 3.0
-     */
-    public static int length(CharSequence cs) {
-        return cs == null ? 0 : cs.length();
-    }
-
-    /**
-     * Returns a new <code>CharSequence</code> that is a subsequence of this
-     * sequence starting with the <code>char</code> value at the specified
-     * index. The length (in <code>char</code>s) of the returned sequence is
-     * <code>length() - start</code>, so if <code>start == end</code> then an
-     * empty sequence is returned. </p>
-     *
-     * @param cs
-     *            the specified subsequence, may be null
-     * @param start
-     *            the start index, inclusive
-     * @return a new subsequence or null
-     *
-     * @throws IndexOutOfBoundsException
-     *             if <code>start</code> is negative or if <code>start</code> is
-     *             greater than <code>length()</code>
-     * @since 3.0
-     */
-    public static CharSequence subSequence(CharSequence cs, int start) {
-        return cs == null ? null : cs.subSequence(start, cs.length());
-    }
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.lang3;
+
+/**
+ * Null-safe CharSequence utility methods.
+ *
+ * @author Gary Gregory
+ */
+public class CharSequenceUtils {
+
+    /**
+     * Gets a CharSequence length or <code>0</code> if the CharSequence is
+     * <code>null</code>.
+     *
+     * @param cs
+     *            a CharSequence or <code>null</code>
+     * @return CharSequence length or <code>0</code> if the CharSequence is
+     *         <code>null</code>.
+     * @since 3.0
+     */
+    public static int length(CharSequence cs) {
+        return cs == null ? 0 : cs.length();
+    }
+
+    /**
+     * Returns a new <code>CharSequence</code> that is a subsequence of this
+     * sequence starting with the <code>char</code> value at the specified
+     * index. The length (in <code>char</code>s) of the returned sequence is
+     * <code>length() - start</code>, so if <code>start == end</code> then an
+     * empty sequence is returned. </p>
+     *
+     * @param cs
+     *            the specified subsequence, may be null
+     * @param start
+     *            the start index, inclusive
+     * @return a new subsequence or null
+     *
+     * @throws IndexOutOfBoundsException
+     *             if <code>start</code> is negative or if <code>start</code> is
+     *             greater than <code>length()</code>
+     * @since 3.0
+     */
+    public static CharSequence subSequence(CharSequence cs, int start) {
+        return cs == null ? null : cs.subSequence(start, cs.length());
+    }
+}

src/test/java/org/apache/commons/lang3/CharSequenceUtilsTest.java

@@ -1,92 +1,92 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package org.apache.commons.lang3;
-
-import java.nio.CharBuffer;
-
-import junit.framework.Assert;
-import junit.framework.TestCase;
-
-/**
- * Tests CharSequenceUtils
- *
- * @author Gary Gregory
- */
-public class CharSequenceUtilsTest extends TestCase {
-
-    public void testLength_CharBuffer() {
-        Assert.assertEquals(0, CharSequenceUtils.length(CharBuffer.wrap("")));
-        Assert.assertEquals(1, CharSequenceUtils.length(CharBuffer.wrap("A")));
-        Assert.assertEquals(1, CharSequenceUtils.length(CharBuffer.wrap(" ")));
-        Assert.assertEquals(8, CharSequenceUtils.length(CharBuffer.wrap("ABCDEFGH")));
-    }
-
-    public void testLength_String() {
-        Assert.assertEquals(0, CharSequenceUtils.length(null));
-        Assert.assertEquals(0, CharSequenceUtils.length(""));
-        Assert.assertEquals(1, CharSequenceUtils.length("A"));
-        Assert.assertEquals(1, CharSequenceUtils.length(" "));
-        Assert.assertEquals(8, CharSequenceUtils.length("ABCDEFGH"));
-    }
-
-    public void testLength_StringBuffer() {
-        Assert.assertEquals(0, CharSequenceUtils.length(new StringBuffer("")));
-        Assert.assertEquals(1, CharSequenceUtils.length(new StringBuffer("A")));
-        Assert.assertEquals(1, CharSequenceUtils.length(new StringBuffer(" ")));
-        Assert.assertEquals(8, CharSequenceUtils.length(new StringBuffer("ABCDEFGH")));
-    }
-
-    public void testLength_StringBuilder() {
-        Assert.assertEquals(0, CharSequenceUtils.length(new StringBuilder("")));
-        Assert.assertEquals(1, CharSequenceUtils.length(new StringBuilder("A")));
-        Assert.assertEquals(1, CharSequenceUtils.length(new StringBuilder(" ")));
-        Assert.assertEquals(8, CharSequenceUtils.length(new StringBuilder("ABCDEFGH")));
-    }
-
-    public void testSubSequence() {
-        //
-        // null input
-        //
-        Assert.assertEquals(null, CharSequenceUtils.subSequence(null, -1));
-        Assert.assertEquals(null, CharSequenceUtils.subSequence(null, 0));
-        Assert.assertEquals(null, CharSequenceUtils.subSequence(null, 1));
-        //
-        // non-null input
-        //
-        Assert.assertEquals(StringUtils.EMPTY, CharSequenceUtils.subSequence(StringUtils.EMPTY, 0));
-        Assert.assertEquals("012", CharSequenceUtils.subSequence("012", 0));
-        Assert.assertEquals("12", CharSequenceUtils.subSequence("012", 1));
-        Assert.assertEquals("2", CharSequenceUtils.subSequence("012", 2));
-        Assert.assertEquals(StringUtils.EMPTY, CharSequenceUtils.subSequence("012", 3));
-        //
-        // Exception expected
-        //
-        try {
-            Assert.assertEquals(null, CharSequenceUtils.subSequence(StringUtils.EMPTY, -1));
-            Assert.fail("Expected " + IndexOutOfBoundsException.class.getName());
-        } catch (IndexOutOfBoundsException e) {
-            // Expected
-        }
-        try {
-            Assert.assertEquals(null, CharSequenceUtils.subSequence(StringUtils.EMPTY, 1));
-            Assert.fail("Expected " + IndexOutOfBoundsException.class.getName());
-        } catch (IndexOutOfBoundsException e) {
-            // Expected
-        }
-    }
-
-}
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.apache.commons.lang3;
+
+import java.nio.CharBuffer;
+
+import junit.framework.Assert;
+import junit.framework.TestCase;
+
+/**
+ * Tests CharSequenceUtils
+ *
+ * @author Gary Gregory
+ */
+public class CharSequenceUtilsTest extends TestCase {
+
+    public void testLength_CharBuffer() {
+        Assert.assertEquals(0, CharSequenceUtils.length(CharBuffer.wrap("")));
+        Assert.assertEquals(1, CharSequenceUtils.length(CharBuffer.wrap("A")));
+        Assert.assertEquals(1, CharSequenceUtils.length(CharBuffer.wrap(" ")));
+        Assert.assertEquals(8, CharSequenceUtils.length(CharBuffer.wrap("ABCDEFGH")));
+    }
+
+    public void testLength_String() {
+        Assert.assertEquals(0, CharSequenceUtils.length(null));
+        Assert.assertEquals(0, CharSequenceUtils.length(""));
+        Assert.assertEquals(1, CharSequenceUtils.length("A"));
+        Assert.assertEquals(1, CharSequenceUtils.length(" "));
+        Assert.assertEquals(8, CharSequenceUtils.length("ABCDEFGH"));
+    }
+
+    public void testLength_StringBuffer() {
+        Assert.assertEquals(0, CharSequenceUtils.length(new StringBuffer("")));
+        Assert.assertEquals(1, CharSequenceUtils.length(new StringBuffer("A")));
+        Assert.assertEquals(1, CharSequenceUtils.length(new StringBuffer(" ")));
+        Assert.assertEquals(8, CharSequenceUtils.length(new StringBuffer("ABCDEFGH")));
+    }
+
+    public void testLength_StringBuilder() {
+        Assert.assertEquals(0, CharSequenceUtils.length(new StringBuilder("")));
+        Assert.assertEquals(1, CharSequenceUtils.length(new StringBuilder("A")));
+        Assert.assertEquals(1, CharSequenceUtils.length(new StringBuilder(" ")));
+        Assert.assertEquals(8, CharSequenceUtils.length(new StringBuilder("ABCDEFGH")));
+    }
+
+    public void testSubSequence() {
+        //
+        // null input
+        //
+        Assert.assertEquals(null, CharSequenceUtils.subSequence(null, -1));
+        Assert.assertEquals(null, CharSequenceUtils.subSequence(null, 0));
+        Assert.assertEquals(null, CharSequenceUtils.subSequence(null, 1));
+        //
+        // non-null input
+        //
+        Assert.assertEquals(StringUtils.EMPTY, CharSequenceUtils.subSequence(StringUtils.EMPTY, 0));
+        Assert.assertEquals("012", CharSequenceUtils.subSequence("012", 0));
+        Assert.assertEquals("12", CharSequenceUtils.subSequence("012", 1));
+        Assert.assertEquals("2", CharSequenceUtils.subSequence("012", 2));
+        Assert.assertEquals(StringUtils.EMPTY, CharSequenceUtils.subSequence("012", 3));
+        //
+        // Exception expected
+        //
+        try {
+            Assert.assertEquals(null, CharSequenceUtils.subSequence(StringUtils.EMPTY, -1));
+            Assert.fail("Expected " + IndexOutOfBoundsException.class.getName());
+        } catch (IndexOutOfBoundsException e) {
+            // Expected
+        }
+        try {
+            Assert.assertEquals(null, CharSequenceUtils.subSequence(StringUtils.EMPTY, 1));
+            Assert.fail("Expected " + IndexOutOfBoundsException.class.getName());
+        } catch (IndexOutOfBoundsException e) {
+            // Expected
+        }
+    }
+
+}