AfflictionNetworks/samskivert
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Made joinEscaped() handle null array elements by converting them to the

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empty string.


git-svn-id: https://samskivert.googlecode.com/svn/trunk@550 6335cc39-0255-0410-8fd6-9bcaacd3b74c
This commit is contained in:
mdb
2002-01-30 18:21:15 +00:00
parent a7eef89a75
commit 2fb0906dda
2 changed files with 11 additions and 4 deletions
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projects/samskivert/src/java/com/samskivert/util/StringUtil.java
+5 -3
View File
@@ -1,5 +1,5 @@
//
// $Id: StringUtil.java,v 1.19 2002/01/30 18:11:27 mdb Exp $
// $Id: StringUtil.java,v 1.20 2002/01/30 18:21:14 mdb Exp $
//
// samskivert library - useful routines for java programs
// Copyright (C) 2001 Michael Bayne
@@ -355,7 +355,8 @@ public class StringUtil
* Joins an array of strings into a single string, separated by
* commas, and escaping commas that occur in the individual string
* values such that a subsequent call to {@link #parseStringArray}
* would recreated the string array properly.
* would recreated the string array properly. Any elements in the
* values array that are null will be treated as an empty string.
*/
public static String joinEscaped (String[] values)
{
@@ -365,7 +366,8 @@ public class StringUtil
if (i > 0) {
buf.append(", ");
}
buf.append(replace(values[i], ",", ",,"));
String value = (values[i] == null) ? "" : values[i];
buf.append(replace(value, ",", ",,"));
}
return buf.toString();
}
projects/samskivert/tests/src/java/com/samskivert/util/StringUtilTest.java
+6 -1
View File
@@ -1,5 +1,5 @@
//
// $Id: StringUtilTest.java,v 1.1 2002/01/30 18:11:27 mdb Exp $
// $Id: StringUtilTest.java,v 1.2 2002/01/30 18:21:15 mdb Exp $
//
// samskivert library - useful routines for java programs
// Copyright (C) 2001 Michael Bayne
@@ -43,6 +43,11 @@ public class StringUtilTest extends TestCase
// now join them back together
String joined = StringUtil.joinEscaped(tokens);
assert("joined.equals(source)", joined.equals(source));
// make sure null to empty string works
tokens = new String[] { "this", null, "is", null, "a", null, "test" };
joined = StringUtil.joinEscaped(tokens);
assert("null elements work", joined.equals("this, , is, , a, , test"));
}
public static Test suite ()