/**
* Format a number supplied as a decimal
*
* @param dval the decimal value
* @param fsb the FastStringBuffer to contain the result
*/
private void formatDecimal(BigDecimal dval, FastStringBuffer fsb) {
dval = dval.setScale(maxFractionPartSize, BigDecimal.ROUND_HALF_EVEN);
DecimalValue.decimalToString(dval, fsb);
int point = fsb.indexOf('.');
int intDigits;
if (point >= 0) {
int zz = maxFractionPartSize - minFractionPartSize;
while (zz > 0) {
if (fsb.charAt(fsb.length() - 1) == '0') {
fsb.setLength(fsb.length() - 1);
zz--;
} else {
break;
}
}
intDigits = point;
if (fsb.charAt(fsb.length() - 1) == '.') {
fsb.setLength(fsb.length() - 1);
}
} else {
intDigits = fsb.length();
if (minFractionPartSize > 0) {
fsb.append('.');
for (int i = 0; i < minFractionPartSize; i++) {
fsb.append('0');
}
}
}
if (minWholePartSize == 0 && intDigits == 1 && fsb.charAt(0) == '0') {
fsb.removeCharAt(0);
} else {
fsb.prependRepeated('0', minWholePartSize - intDigits);
}
}
/**
* Format a number using this sub-picture
*
* @param value the absolute value of the number to be formatted
* @param dfs the decimal format symbols to be used
* @param minusSign the representation of a minus sign to be used
* @return the formatted number
*/
public CharSequence format(NumericValue value, DecimalSymbols dfs, String minusSign) {
// System.err.println("Formatting " + value);
if (value.isNaN()) {
return dfs.NaN; // changed by W3C Bugzilla 2712
}
if ((value instanceof DoubleValue || value instanceof FloatValue)
&& Double.isInfinite(value.getDoubleValue())) {
return minusSign + prefix + dfs.infinity + suffix;
}
int multiplier = 1;
if (isPercent) {
multiplier = 100;
} else if (isPerMille) {
multiplier = 1000;
}
if (multiplier != 1) {
try {
// value = value.arithmetic(Token.MULT, new Int64Value(multiplier), null);
value =
(NumericValue)
ArithmeticExpression.compute(
value, Calculator.TIMES, new Int64Value(multiplier), null);
} catch (XPathException e) {
value = new DoubleValue(value.getDoubleValue() * multiplier);
}
}
FastStringBuffer sb = new FastStringBuffer(20);
if (value instanceof DoubleValue || value instanceof FloatValue) {
BigDecimal dec = adjustToDecimal(value.getDoubleValue(), 2);
formatDecimal(dec, sb);
// formatDouble(value.getDoubleValue(), sb);
} else if (value instanceof Int64Value || value instanceof BigIntegerValue) {
formatInteger(value, sb);
} else if (value instanceof DecimalValue) {
//noinspection RedundantCast
formatDecimal(((DecimalValue) value).getDecimalValue(), sb);
}
// System.err.println("Justified number: " + sb.toString());
// Map the digits and decimal point to use the selected characters
int[] ib = StringValue.expand(sb);
int ibused = ib.length;
int point = sb.indexOf('.');
if (point == -1) {
point = sb.length();
} else {
ib[point] = dfs.decimalSeparator;
// If there is no fractional part, delete the decimal point
if (maxFractionPartSize == 0) {
ibused--;
}
}
// Map the digits
if (dfs.zeroDigit != '0') {
int newZero = dfs.zeroDigit;
for (int i = 0; i < ibused; i++) {
int c = ib[i];
if (c >= '0' && c <= '9') {
ib[i] = (c - '0' + newZero);
}
}
}
// Add the whole-part grouping separators
if (wholePartGroupingPositions != null) {
if (wholePartGroupingPositions.length == 1) {
// grouping separators are at regular positions
int g = wholePartGroupingPositions[0];
int p = point - g;
while (p > 0) {
ib = insert(ib, ibused++, dfs.groupingSeparator, p);
// sb.insert(p, unicodeChar(dfs.groupingSeparator));
p -= g;
}
} else {
// grouping separators are at irregular positions
for (int i = 0; i < wholePartGroupingPositions.length; i++) {
int p = point - wholePartGroupingPositions[i];
if (p > 0) {
ib = insert(ib, ibused++, dfs.groupingSeparator, p);
// sb.insert(p, unicodeChar(dfs.groupingSeparator));
}
}
}
}
// Add the fractional-part grouping separators
if (fractionalPartGroupingPositions != null) {
// grouping separators are at irregular positions.
for (int i = 0; i < fractionalPartGroupingPositions.length; i++) {
int p = point + 1 + fractionalPartGroupingPositions[i] + i;
if (p < ibused - 1) {
ib = insert(ib, ibused++, dfs.groupingSeparator, p);
// sb.insert(p, dfs.groupingSeparator);
} else {
break;
}
}
}
// System.err.println("Grouped number: " + sb.toString());
// sb.insert(0, prefix);
// sb.insert(0, minusSign);
// sb.append(suffix);
FastStringBuffer res =
new FastStringBuffer(prefix.length() + minusSign.length() + suffix.length() + ibused);
res.append(minusSign);
res.append(prefix);
res.append(StringValue.contract(ib, ibused));
res.append(suffix);
return res;
}