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Fix bug #54557 - Don't mis-detect format patterns like .000 as dates

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1445725 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Nick Burch 2013-02-13 16:45:03 +00:00
parent 8d7d3f54c0
commit 9f23a59eaa
2 changed files with 21 additions and 5 deletions
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15
src/java/org/apache/poi/ss/usermodel/DateUtil.java
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@ -55,7 +55,8 @@ public class DateUtil {
*/
private static final Pattern date_ptrn1 = Pattern.compile("^\\[\\$\\-.*?\\]");
private static final Pattern date_ptrn2 = Pattern.compile("^\\[[a-zA-Z]+\\]");
private static final Pattern date_ptrn3 = Pattern.compile("^[\\[\\]yYmMdDhHsS\\-/,. :\"\\\\]+0*[ampAMP/]*$");
private static final Pattern date_ptrn3a = Pattern.compile("[yYmMdDhHsS]");
private static final Pattern date_ptrn3b = Pattern.compile("^[\\[\\]yYmMdDhHsS\\-/,. :\"\\\\]+0*[ampAMP/]*$");
// elapsed time patterns: [h],[m] and [s]
private static final Pattern date_ptrn4 = Pattern.compile("^\\[([hH]+|[mM]+|[sS]+)\\]");
@ -364,10 +365,16 @@ public class DateUtil {
fs = fs.substring(0, fs.indexOf(';'));
}
// Otherwise, check it's only made up, in any case, of:
// y m d h s - \ / , . :
// Ensure it has some date letters in it
// (Avoids false positives on the rest of pattern 3)
if (! date_ptrn3a.matcher(fs).find()) {
return false;
}
// If we get here, check it's only made up, in any case, of:
// y m d h s - \ / , . : [ ]
// optionally followed by AM/PM
return date_ptrn3.matcher(fs).matches();
return date_ptrn3b.matcher(fs).matches();
}
/**

11
src/testcases/org/apache/poi/hssf/usermodel/TestHSSFDateUtil.java
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@ -499,5 +499,14 @@ public final class TestHSSFDateUtil extends TestCase {
assertEquals(valueToTest.getTime(), returnedValue.getTime());
}
/**
* DateUtil.isCellFormatted(Cell) should not true for a numeric cell
* that's formatted as ".0000"
*/
public void testBug54557() throws Exception {
final String format = ".0000";
boolean isDateFormat = HSSFDateUtil.isADateFormat(165, format);
assertEquals(false, isDateFormat);
}
}