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2004-05-05 Guilhem Lavaux <guilhem@kaffe.org>

Browse Source 
* java/text/DecimalFormat.java
	(MAXIMUM_INTEGER_DIGITS): New constant to keep the numeric value 309.
	(applyPatternWithSymbols): Use MAXIMUM_INTEGER_DIGITS.
	(parse): Fixed handling of exponentiation notation and grouping.

2004-05-05  Guilhem Lavaux <guilhem@kaffe.org>

	* java/text/DecimalFormat.java
	(scanFix): Build attribute array. Fixed error reporting.
	(applyPatternWithSymbols): Store attributes for the prefix and
	suffix.
	(formatInternal): New method. Changed the way the string is
	computed. Implemented attributes. Cleant up rounding in
	exponential notation.
	(format): Use formatInternal.
	(formatToCharacterIterator): New method.
	(exponentRound, negativePrefixRanges, positivePrefixRanges,
	negativePrefixAttrs, positivePrefixAttrs, negativeSuffixRanges,
	positiveSuffixRanges, negativeSuffixAttrs, positiveSuffixAttrs):
	New fields.

From-SVN: r81491
This commit is contained in:
Guilhem Lavaux 2004-05-04 22:00:30 +00:00 committed by Michael Koch
parent aff9d141f6
commit 8cf1edb30c
2 changed files with 184 additions and 64 deletions
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23
libjava/ChangeLog
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@ -1,3 +1,26 @@
2004-05-05 Guilhem Lavaux <guilhem@kaffe.org>
* java/text/DecimalFormat.java
(MAXIMUM_INTEGER_DIGITS): New constant to keep the numeric value 309.
(applyPatternWithSymbols): Use MAXIMUM_INTEGER_DIGITS.
(parse): Fixed handling of exponentiation notation and grouping.
2004-05-05 Guilhem Lavaux <guilhem@kaffe.org>
* java/text/DecimalFormat.java
(scanFix): Build attribute array. Fixed error reporting.
(applyPatternWithSymbols): Store attributes for the prefix and
suffix.
(formatInternal): New method. Changed the way the string is
computed. Implemented attributes. Cleant up rounding in
exponential notation.
(format): Use formatInternal.
(formatToCharacterIterator): New method.
(exponentRound, negativePrefixRanges, positivePrefixRanges,
negativePrefixAttrs, positivePrefixAttrs, negativeSuffixRanges,
positiveSuffixRanges, negativeSuffixAttrs, positiveSuffixAttrs):
New fields.
2004-05-04 Dalibor Topic <robilad@kaffe.org>
* java/security/interfaces/DSAKeyPairGenerator.java,

225
libjava/java/text/DecimalFormat.java
View File

@ -37,7 +37,13 @@ exception statement from your version. */
package java.text;
import gnu.java.text.AttributedFormatBuffer;
import gnu.java.text.FormatBuffer;
import gnu.java.text.FormatCharacterIterator;
import gnu.java.text.StringFormatBuffer;
import java.util.Currency;
import java.util.HashMap;
import java.util.Locale;
import java.util.MissingResourceException;
import java.util.ResourceBundle;
@ -58,37 +64,48 @@ public class DecimalFormat extends NumberFormat
{
// This is a helper for applyPatternWithSymbols. It reads a prefix
// or a suffix. It can cause some side-effects.
private final int scanFix (String pattern, int index, StringBuffer buf,
private final int scanFix (String pattern, int index, FormatBuffer buf,
String patChars, DecimalFormatSymbols syms,
boolean is_suffix)
{
int len = pattern.length();
buf.setLength(0);
boolean quoteStarted = false;
buf.clear();
boolean multiplierSet = false;
while (index < len)
{
char c = pattern.charAt(index);
if (quoteStarted)
{
if (c == '\'')
quoteStarted = false;
else
buf.append(c);
index++;
continue;
}
if (c == '\'' && index + 1 < len
&& pattern.charAt(index + 1) == '\'')
{
buf.append(c);
++index;
index++;
}
else if (c == '\'' && index + 2 < len
&& pattern.charAt(index + 2) == '\'')
else if (c == '\'')
{
buf.append(pattern.charAt(index + 1));
index += 2;
quoteStarted = true;
}
else if (c == '\u00a4')
{
if (index + 1 < len && pattern.charAt(index + 1) == '\u00a4')
{
buf.append(syms.getInternationalCurrencySymbol());
++index;
buf.append(syms.getInternationalCurrencySymbol(), NumberFormat.Field.CURRENCY);
index++;
}
else
buf.append(syms.getCurrencySymbol());
buf.append(syms.getCurrencySymbol(), NumberFormat.Field.CURRENCY);
}
else if (c == syms.getPercent())
{
@ -97,7 +114,7 @@ public class DecimalFormat extends NumberFormat
"- index: " + index);
multiplierSet = true;
multiplier = 100;
buf.append(c);
buf.append(c, NumberFormat.Field.PERCENT);
}
else if (c == syms.getPerMill())
{
@ -106,7 +123,7 @@ public class DecimalFormat extends NumberFormat
"- index: " + index);
multiplierSet = true;
multiplier = 1000;
buf.append(c);
buf.append(c, NumberFormat.Field.PERMILLE);
}
else if (patChars.indexOf(c) != -1)
{
@ -115,9 +132,12 @@ public class DecimalFormat extends NumberFormat
}
else
buf.append(c);
++index;
index++;
}
if (quoteStarted)
throw new IllegalArgumentException ("pattern is lacking a closing quote");
return index;
}
@ -259,6 +279,16 @@ public class DecimalFormat extends NumberFormat
useExponentialNotation = true;
minExponentDigits = (byte) zeroCount;
}
maximumIntegerDigits = groupingSize;
groupingSize = 0;
if (maximumIntegerDigits > minimumIntegerDigits && maximumIntegerDigits > 0)
{
minimumIntegerDigits = 1;
exponentRound = maximumIntegerDigits;
}
else
exponentRound = 1;
}
return index;
@ -304,17 +334,23 @@ public class DecimalFormat extends NumberFormat
minimumFractionDigits = 0;
minimumIntegerDigits = 1;
StringBuffer buf = new StringBuffer ();
AttributedFormatBuffer buf = new AttributedFormatBuffer ();
String patChars = patternChars (syms);
int max = pattern.length();
int index = scanFix (pattern, 0, buf, patChars, syms, false);
positivePrefix = buf.toString();
buf.sync();
positivePrefix = buf.getBuffer().toString();
positivePrefixRanges = buf.getRanges();
positivePrefixAttrs = buf.getAttributes();
index = scanFormat (pattern, index, patChars, syms, true);
index = scanFix (pattern, index, buf, patChars, syms, true);
positiveSuffix = buf.toString();
buf.sync();
positiveSuffix = buf.getBuffer().toString();
positiveSuffixRanges = buf.getRanges();
positiveSuffixAttrs = buf.getAttributes();
if (index == pattern.length())
{
@ -329,14 +365,20 @@ public class DecimalFormat extends NumberFormat
"expected - index: " + index);
index = scanFix (pattern, index + 1, buf, patChars, syms, false);
negativePrefix = buf.toString();
buf.sync();
negativePrefix = buf.getBuffer().toString();
negativePrefixRanges = buf.getRanges();
negativePrefixAttrs = buf.getAttributes();
// We parse the negative format for errors but we don't let
// it side-effect this object.
index = scanFormat (pattern, index, patChars, syms, false);
index = scanFix (pattern, index, buf, patChars, syms, true);
negativeSuffix = buf.toString();
buf.sync();
negativeSuffix = buf.getBuffer().toString();
negativeSuffixRanges = buf.getRanges();
negativeSuffixAttrs = buf.getAttributes();
if (index != pattern.length())
throw new IllegalArgumentException ("end of pattern expected " +
@ -409,39 +451,43 @@ public class DecimalFormat extends NumberFormat
&& useExponentialNotation == dup.useExponentialNotation);
}
public StringBuffer format (double number, StringBuffer dest,
FieldPosition fieldPos)
protected void formatInternal (double number, FormatBuffer dest,
FieldPosition fieldPos)
{
// A very special case.
if (Double.isNaN(number))
{
dest.append(symbols.getNaN());
if (fieldPos != null && fieldPos.getField() == INTEGER_FIELD)
if (fieldPos != null &&
(fieldPos.getField() == INTEGER_FIELD ||
fieldPos.getFieldAttribute() == NumberFormat.Field.INTEGER))
{
int index = dest.length();
fieldPos.setBeginIndex(index - symbols.getNaN().length());
fieldPos.setEndIndex(index);
}
return dest;
return;
}
boolean is_neg = number < 0;
if (is_neg)
{
if (negativePrefix != null)
dest.append(negativePrefix);
dest.append(negativePrefix, negativePrefixRanges, negativePrefixAttrs);
else
{
dest.append(symbols.getMinusSign());
dest.append(positivePrefix);
dest.append(symbols.getMinusSign(), NumberFormat.Field.SIGN);
dest.append(positivePrefix, positivePrefixRanges, positivePrefixAttrs);
}
number = - number;
}
else
dest.append(positivePrefix);
dest.append(positivePrefix, positivePrefixRanges, positivePrefixAttrs);
int integerBeginIndex = dest.length();
int integerEndIndex = 0;
int zeroStart = symbols.getZeroDigit() - '0';
if (Double.isInfinite (number))
{
dest.append(symbols.getInfinity());
@ -457,6 +503,7 @@ public class DecimalFormat extends NumberFormat
if (useExponentialNotation)
{
exponent = (long) Math.floor (Math.log(number) / Math.log(10));
exponent = exponent - (exponent % exponentRound);
if (minimumIntegerDigits > 0)
exponent -= minimumIntegerDigits - 1;
baseNumber = (number / Math.pow(10.0, exponent));
@ -468,33 +515,57 @@ public class DecimalFormat extends NumberFormat
baseNumber += 5 * Math.pow(10.0, - maximumFractionDigits - 1);
int index = dest.length();
double intPart = Math.floor(baseNumber);
int count = 0;
while (count < maximumIntegerDigits
&& (intPart > 0 || count < minimumIntegerDigits))
//double intPart = Math.floor(baseNumber);
String intPart = Long.toString((long)Math.floor(baseNumber));
int count, groupPosition = intPart.length();
dest.setDefaultAttribute(NumberFormat.Field.INTEGER);
for (count = 0; count < minimumIntegerDigits-intPart.length(); count++)
dest.append(symbols.getZeroDigit());
for (count = 0;
count < maximumIntegerDigits && count < intPart.length();
count++)
{
long dig = (long) (intPart % 10);
intPart = Math.floor(intPart / 10);
int dig = intPart.charAt(count);
// Append group separator if required.
if (groupingUsed && count > 0 && groupingSize != 0 && count % groupingSize == 0)
dest.insert(index, symbols.getGroupingSeparator());
if (groupingUsed && count > 0 && groupingSize != 0 && groupPosition % groupingSize == 0)
{
dest.append(symbols.getGroupingSeparator(), NumberFormat.Field.GROUPING_SEPARATOR);
dest.setDefaultAttribute(NumberFormat.Field.INTEGER);
}
dest.append((char) (zeroStart + dig));
dest.insert(index, (char) (symbols.getZeroDigit() + dig));
++count;
groupPosition--;
}
dest.setDefaultAttribute(null);
integerEndIndex = dest.length();
int decimal_index = integerEndIndex;
int consecutive_zeros = 0;
int total_digits = 0;
int localMaximumFractionDigits = maximumFractionDigits;
if (useExponentialNotation)
localMaximumFractionDigits += minimumIntegerDigits - count;
// Strip integer part from NUMBER.
double fracPart = baseNumber - Math.floor(baseNumber);
if ( ((fracPart != 0 || minimumFractionDigits > 0) && localMaximumFractionDigits > 0)
|| decimalSeparatorAlwaysShown)
{
dest.append (symbols.getDecimalSeparator(), NumberFormat.Field.DECIMAL_SEPARATOR);
}
dest.setDefaultAttribute(NumberFormat.Field.FRACTION);
for (count = 0;
count < maximumFractionDigits
count < localMaximumFractionDigits
&& (fracPart != 0 || count < minimumFractionDigits);
++count)
{
@ -517,61 +588,82 @@ public class DecimalFormat extends NumberFormat
total_digits - minimumFractionDigits);
if (extra_zeros > 0)
{
dest.setLength(dest.length() - extra_zeros);
dest.cutTail(extra_zeros);
total_digits -= extra_zeros;
}
// If required, add the decimal symbol.
if (decimalSeparatorAlwaysShown
|| total_digits > 0)
{
dest.insert(decimal_index, symbols.getDecimalSeparator());
if (fieldPos != null && fieldPos.getField() == FRACTION_FIELD)
{
fieldPos.setBeginIndex(decimal_index + 1);
fieldPos.setEndIndex(dest.length());
}
if (total_digits == 0 && !decimalSeparatorAlwaysShown)
dest.cutTail(1);
}
// Finally, print the exponent.
if (useExponentialNotation)
{
dest.append(symbols.getExponential());
dest.append(symbols.getExponential(), NumberFormat.Field.EXPONENT_SYMBOL);
if (exponent < 0)
{
dest.append (symbols.getMinusSign ());
dest.append (symbols.getMinusSign (), NumberFormat.Field.EXPONENT_SIGN);
exponent = - exponent;
}
index = dest.length();
dest.setDefaultAttribute(NumberFormat.Field.EXPONENT);
String exponentString = Long.toString ((long) exponent);
for (count = 0; count < minExponentDigits-exponentString.length();
count++)
dest.append((char) symbols.getZeroDigit());
for (count = 0;
exponent > 0 || count < minExponentDigits;
count < exponentString.length();
++count)
{
long dig = exponent % 10;
exponent /= 10;
dest.insert(index, (char) (symbols.getZeroDigit() + dig));
int dig = exponentString.charAt(count);
dest.append((char) (zeroStart + dig));
}
}
}
if (fieldPos != null && fieldPos.getField() == INTEGER_FIELD)
if (fieldPos != null &&
(fieldPos.getField() == INTEGER_FIELD ||
fieldPos.getFieldAttribute() == NumberFormat.Field.INTEGER))
{
fieldPos.setBeginIndex(integerBeginIndex);
fieldPos.setEndIndex(integerEndIndex);
}
dest.append((is_neg && negativeSuffix != null)
? negativeSuffix
: positiveSuffix);
if (is_neg && negativeSuffix != null)
dest.append(negativeSuffix, negativeSuffixRanges, negativeSuffixAttrs);
else
dest.append(positiveSuffix, positiveSuffixRanges, positiveSuffixAttrs);
}
public StringBuffer format (double number, StringBuffer dest,
FieldPosition fieldPos)
{
formatInternal (number, new StringFormatBuffer(dest), fieldPos);
return dest;
}
public AttributedCharacterIterator formatToCharacterIterator (Object value)
{
AttributedFormatBuffer sbuf = new AttributedFormatBuffer();
if (value instanceof Number)
formatInternal(((Number) value).doubleValue(), sbuf, null);
else
throw new IllegalArgumentException
("Cannot format given Object as a Number");
sbuf.sync();
return new FormatCharacterIterator(sbuf.getBuffer().toString(),
sbuf.getRanges(),
sbuf.getAttributes());
}
public StringBuffer format (long number, StringBuffer dest,
FieldPosition fieldPos)
{
// If using exponential notation, we just format as a double.
if (useExponentialNotation)
return format ((double) number, dest, fieldPos);
return format ((double) number, dest, fieldPos);
boolean is_neg = number < 0;
if (is_neg)
@ -964,7 +1056,7 @@ public class DecimalFormat extends NumberFormat
// digits. Past that we need hash marks up to the grouping
// separator (and one beyond).
int total_digits = Math.max(minimumIntegerDigits,
groupingUsed ? groupingSize + 1: 0);
groupingUsed ? groupingSize + 1: groupingSize);
for (int i = 0; i < total_digits - minimumIntegerDigits; ++i)
mainPattern.append(syms.getDigit());
for (int i = total_digits - minimumIntegerDigits; i < total_digits; ++i)
@ -1022,11 +1114,16 @@ public class DecimalFormat extends NumberFormat
private boolean decimalSeparatorAlwaysShown;
private byte groupingSize;
private byte minExponentDigits;
private int exponentRound;
private int multiplier;
private String negativePrefix;
private String negativeSuffix;
private String positivePrefix;
private String positiveSuffix;
private int[] negativePrefixRanges, positivePrefixRanges;
private HashMap[] negativePrefixAttrs, positivePrefixAttrs;
private int[] negativeSuffixRanges, positiveSuffixRanges;
private HashMap[] negativeSuffixAttrs, positiveSuffixAttrs;
private int serialVersionOnStream = 1;
private DecimalFormatSymbols symbols;
private boolean useExponentialNotation;