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[github-25] support excel number trailing comma format - Thabks to Luca Martini for proving the patch

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git-svn-id: https://svn.apache.org/repos/asf/poi/trunk@1800975 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
PJ Fanning 2017-07-06 07:56:57 +00:00
parent a0aa8807b5
commit 23567cd3a0
2 changed files with 86 additions and 7 deletions
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55
src/java/org/apache/poi/ss/usermodel/DataFormatter.java
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@ -687,6 +687,57 @@ public class DataFormatter implements Observer {
return sb.toString(); return sb.toString();
} }
private static class InternalDecimalFormatWithScale extends Format {
private static final Pattern endsWithCommas = Pattern.compile("(,+)$");
private BigDecimal divider;
private static final BigDecimal ONE_THOUSAND = new BigDecimal(1000);
private final DecimalFormat df;
private static final String trimTrailingCommas(String s) {
return s.replaceAll(",+$", "");
}
public InternalDecimalFormatWithScale(String pattern, DecimalFormatSymbols symbols) {
df = new DecimalFormat(trimTrailingCommas(pattern), symbols);
setExcelStyleRoundingMode(df);
Matcher endsWithCommasMatcher = endsWithCommas.matcher(pattern);
if (endsWithCommasMatcher.find()) {
String commas = (endsWithCommasMatcher.group(1));
BigDecimal temp = BigDecimal.ONE;
for (int i = 0; i < commas.length(); ++i) {
temp = temp.multiply(ONE_THOUSAND);
}
divider = temp;
} else {
divider = null;
}
}
private Object scaleInput(Object obj) {
if (divider != null) {
if (obj instanceof BigDecimal) {
obj = ((BigDecimal) obj).divide(divider, RoundingMode.HALF_UP);
} else if (obj instanceof Double) {
obj = (Double) obj / divider.doubleValue();
} else {
throw new UnsupportedOperationException();
}
}
return obj;
}
@Override
public StringBuffer format(Object obj, StringBuffer toAppendTo, FieldPosition pos) {
obj = scaleInput(obj);
return df.format(obj, toAppendTo, pos);
}
@Override
public Object parseObject(String source, ParsePosition pos) {
throw new UnsupportedOperationException();
}
}
private Format createNumberFormat(String formatStr, double cellValue) { private Format createNumberFormat(String formatStr, double cellValue) {
String format = cleanFormatForNumber(formatStr); String format = cleanFormatForNumber(formatStr);
DecimalFormatSymbols symbols = decimalSymbols; DecimalFormatSymbols symbols = decimalSymbols;
@ -710,9 +761,7 @@ public class DataFormatter implements Observer {
} }
try { try {
DecimalFormat df = new DecimalFormat(format, symbols); return new InternalDecimalFormatWithScale(format, symbols);
setExcelStyleRoundingMode(df);
return df;
} catch(IllegalArgumentException iae) { } catch(IllegalArgumentException iae) {
logger.log(POILogger.DEBUG, "Formatting failed for format " + formatStr + ", falling back", iae); logger.log(POILogger.DEBUG, "Formatting failed for format " + formatStr + ", falling back", iae);
// the pattern could not be parsed correctly, // the pattern could not be parsed correctly,

30
src/testcases/org/apache/poi/ss/usermodel/TestDataFormatter.java
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@ -821,6 +821,36 @@ public class TestDataFormatter {
wb.close(); wb.close();
} }
@Test
public void testFormatWithTrailingDotsUS() {
DataFormatter dfUS = new DataFormatter(Locale.US);
assertEquals("1,000,000", dfUS.formatRawCellContents(1000000, -1, "#,##0"));
assertEquals("1,000", dfUS.formatRawCellContents(1000000, -1, "#,##0,"));
assertEquals("1", dfUS.formatRawCellContents(1000000, -1, "#,##0,,"));
assertEquals("1,000,000.0", dfUS.formatRawCellContents(1000000, -1, "#,##0.0"));
assertEquals("1,000.0", dfUS.formatRawCellContents(1000000, -1, "#,##0.0,"));
assertEquals("1.0", dfUS.formatRawCellContents(1000000, -1, "#,##0.0,,"));
assertEquals("1,000,000.00", dfUS.formatRawCellContents(1000000, -1, "#,##0.00"));
assertEquals("1,000.00", dfUS.formatRawCellContents(1000000, -1, "#,##0.00,"));
assertEquals("1.00", dfUS.formatRawCellContents(1000000, -1, "#,##0.00,,"));
assertEquals("1,000,000", dfUS.formatRawCellContents(1e24, -1, "#,##0,,,,,,"));
}
@Test
public void testFormatWithTrailingDotsOtherLocale() throws Exception {
DataFormatter dfIT = new DataFormatter(Locale.ITALY);
assertEquals("1.000.000", dfIT.formatRawCellContents(1000000, -1, "#,##0"));
assertEquals("1.000", dfIT.formatRawCellContents(1000000, -1, "#,##0,"));
assertEquals("1", dfIT.formatRawCellContents(1000000, -1, "#,##0,,"));
assertEquals("1.000.000,0", dfIT.formatRawCellContents(1000000, -1, "#,##0.0"));
assertEquals("1.000,0", dfIT.formatRawCellContents(1000000, -1, "#,##0.0,"));
assertEquals("1,0", dfIT.formatRawCellContents(1000000, -1, "#,##0.0,,"));
assertEquals("1.000.000,00", dfIT.formatRawCellContents(1000000, -1, "#,##0.00"));
assertEquals("1.000,00", dfIT.formatRawCellContents(1000000, -1, "#,##0.00,"));
assertEquals("1,00", dfIT.formatRawCellContents(1000000, -1, "#,##0.00,,"));
assertEquals("1.000.000", dfIT.formatRawCellContents(1e24, -1, "#,##0,,,,,,"));
}
/** /**
* bug 60031: DataFormatter parses months incorrectly when put at the end of date segment * bug 60031: DataFormatter parses months incorrectly when put at the end of date segment
*/ */