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Add a CharSetUtils.containsAny(String, String) per LANG-886 

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1470130 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Henri Yandell 2013-04-20 09:05:43 +00:00
parent 90be7a25c6
commit bb95f8a194
3 changed files with 74 additions and 0 deletions
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1
src/changes/changes.xml
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@ -22,6 +22,7 @@
<body>
<release version="3.2" date="TBA" description="Next release">
<action issue="LANG-886" type="add">Added CharSetUtils.containsAny(String, String)</action>
<action issue="LANG-846" type="update">Provide CharSequenceUtils.regionMatches with a proper green implementation instead of inefficiently converting to Strings</action>
<action issue="LANG-797" type="add">Added escape/unescapeJson to StringEscapeUtils</action>
<action issue="LANG-875" type="add">Added appendIfMissing and prependIfMissing methods to StringUtils</action>

33
src/main/java/org/apache/commons/lang3/CharSetUtils.java
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@ -83,6 +83,39 @@ public class CharSetUtils {
return buffer.toString();
}
// ContainsAny
//-----------------------------------------------------------------------
/**
* <p>Takes an argument in set-syntax, see evaluateSet,
* and identifies whether any of the characters are present in the specified string.</p>
*
* <pre>
* CharSetUtils.containsAny(null, *) = false
* CharSetUtils.containsAny("", *) = false
* CharSetUtils.containsAny(*, null) = false
* CharSetUtils.containsAny(*, "") = false
* CharSetUtils.containsAny("hello", "k-p") = true
* CharSetUtils.containsAny("hello", "a-d") = false
* </pre>
*
* @see CharSet#getInstance(java.lang.String...) for set-syntax.
* @param str String to look for characters in, may be null
* @param set String[] set of characters to identify, may be null
* @return whether or not the characters in the set are in the primary string
*/
public static boolean containsAny(final String str, final String... set) {
if (StringUtils.isEmpty(str) || deepEmpty(set)) {
return false;
}
final CharSet chars = CharSet.getInstance(set);
for (final char c : str.toCharArray()) {
if (chars.contains(c)) {
return true;
}
}
return false;
}
// Count
//-----------------------------------------------------------------------
/**

40
src/test/java/org/apache/commons/lang3/CharSetUtilsTest.java
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@ -85,6 +85,46 @@ public class CharSetUtilsTest {
assertEquals("fof", CharSetUtils.squeeze("fooooff", new String[] { "fo" }));
}
//-----------------------------------------------------------------------
@Test
public void testContainsAny_StringString() {
assertFalse(CharSetUtils.containsAny(null, (String) null));
assertFalse(CharSetUtils.containsAny(null, ""));
assertFalse(CharSetUtils.containsAny("", (String) null));
assertFalse(CharSetUtils.containsAny("", ""));
assertFalse(CharSetUtils.containsAny("", "a-e"));
assertFalse(CharSetUtils.containsAny("hello", (String) null));
assertFalse(CharSetUtils.containsAny("hello", ""));
assertTrue(CharSetUtils.containsAny("hello", "a-e"));
assertTrue(CharSetUtils.containsAny("hello", "l-p"));
}
@Test
public void testContainsAny_StringStringarray() {
assertFalse(CharSetUtils.containsAny(null, (String[]) null));
assertFalse(CharSetUtils.containsAny(null, new String[0]));
assertFalse(CharSetUtils.containsAny(null, new String[] {null}));
assertFalse(CharSetUtils.containsAny(null, new String[] {"a-e"}));
assertFalse(CharSetUtils.containsAny("", (String[]) null));
assertFalse(CharSetUtils.containsAny("", new String[0]));
assertFalse(CharSetUtils.containsAny("", new String[] {null}));
assertFalse(CharSetUtils.containsAny("", new String[] {"a-e"}));
assertFalse(CharSetUtils.containsAny("hello", (String[]) null));
assertFalse(CharSetUtils.containsAny("hello", new String[0]));
assertFalse(CharSetUtils.containsAny("hello", new String[] {null}));
assertTrue(CharSetUtils.containsAny("hello", new String[] {"a-e"}));
assertTrue(CharSetUtils.containsAny("hello", new String[] { "el" }));
assertFalse(CharSetUtils.containsAny("hello", new String[] { "x" }));
assertTrue(CharSetUtils.containsAny("hello", new String[] { "e-i" }));
assertTrue(CharSetUtils.containsAny("hello", new String[] { "a-z" }));
assertFalse(CharSetUtils.containsAny("hello", new String[] { "" }));
}
//-----------------------------------------------------------------------
@Test
public void testCount_StringString() {