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Formatting and parsing of monetary values with non-arabic digits.

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This commit is contained in:
Andreas Schildbach 2014-08-24 23:51:35 +02:00
parent 282c25eeb4
commit 9e91c54fdd
2 changed files with 57 additions and 27 deletions
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79
core/src/main/java/com/google/bitcoin/utils/CoinFormat.java
View File

@ -62,6 +62,7 @@ public final class CoinFormat {
private final char negativeSign;
private final char positiveSign;
private final char zeroDigit;
private final char decimalMark;
private final int minDecimals;
private final List<Integer> decimalGroups;
@ -82,8 +83,8 @@ public final class CoinFormat {
if (negativeSign == this.negativeSign)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -95,8 +96,19 @@ public final class CoinFormat {
if (positiveSign == this.positiveSign)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, codePrefixed);
}
/**
* Set character range to use for representing digits. It starts with the specified character representing zero.
*/
public CoinFormat digits(char zeroDigit) {
if (zeroDigit == this.zeroDigit)
return this;
else
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -109,8 +121,8 @@ public final class CoinFormat {
if (decimalMark == this.decimalMark)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -123,8 +135,8 @@ public final class CoinFormat {
if (minDecimals == this.minDecimals)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -146,8 +158,8 @@ public final class CoinFormat {
List<Integer> decimalGroups = new ArrayList<Integer>(groups.length);
for (int group : groups)
decimalGroups.add(group);
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift, roundingMode,
codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -172,8 +184,8 @@ public final class CoinFormat {
List<Integer> decimalGroups = new ArrayList<Integer>(repetitions);
for (int i = 0; i < repetitions; i++)
decimalGroups.add(decimals);
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift, roundingMode,
codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -184,8 +196,8 @@ public final class CoinFormat {
if (shift == this.shift)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -195,8 +207,8 @@ public final class CoinFormat {
if (roundingMode == this.roundingMode)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -206,8 +218,8 @@ public final class CoinFormat {
if (codes == null)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, null, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, null, codeSeparator, codePrefixed);
}
/**
@ -224,8 +236,8 @@ public final class CoinFormat {
if (this.codes != null)
codes.putAll(this.codes);
codes.put(codeShift, code);
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift, roundingMode,
codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -237,8 +249,8 @@ public final class CoinFormat {
if (codeSeparator == this.codeSeparator)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, codePrefixed);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, codePrefixed);
}
/**
@ -248,8 +260,8 @@ public final class CoinFormat {
if (codePrefixed)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, true);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, true);
}
/**
@ -259,14 +271,15 @@ public final class CoinFormat {
if (!codePrefixed)
return this;
else
return new CoinFormat(negativeSign, positiveSign, decimalMark, minDecimals, decimalGroups, shift,
roundingMode, codes, codeSeparator, false);
return new CoinFormat(negativeSign, positiveSign, zeroDigit, decimalMark, minDecimals, decimalGroups,
shift, roundingMode, codes, codeSeparator, false);
}
public CoinFormat() {
// defaults
this.negativeSign = '-';
this.positiveSign = 0; // none
this.zeroDigit = '0';
this.decimalMark = '.';
this.minDecimals = 2;
this.decimalGroups = null;
@ -280,11 +293,12 @@ public final class CoinFormat {
this.codePrefixed = true;
}
private CoinFormat(char negativeSign, char positiveSign, char decimalMark, int minDecimals,
private CoinFormat(char negativeSign, char positiveSign, char zeroDigit, char decimalMark, int minDecimals,
List<Integer> decimalGroups, int shift, RoundingMode roundingMode, Map<Integer, String> codes,
char codeSeparator, boolean codePrefixed) {
this.negativeSign = negativeSign;
this.positiveSign = positiveSign;
this.zeroDigit = zeroDigit;
this.decimalMark = decimalMark;
this.minDecimals = minDecimals;
this.decimalGroups = decimalGroups;
@ -348,6 +362,17 @@ public final class CoinFormat {
str.append(code());
}
}
// convert to non-arabic digits
if (zeroDigit != '0') {
int offset = zeroDigit - '0';
System.out.println(offset);
for (int d = 0; d < str.length(); d++) {
char c = str.charAt(d);
if(Character.isDigit(c))
str.setCharAt(d, (char) (c + offset));
}
}
return str;
}

5
core/src/test/java/com/google/bitcoin/utils/CoinFormatTest.java
View File

@ -38,6 +38,11 @@ public class CoinFormatTest {
assertEquals("+1.00", NO_CODE.positiveSign('+').format(Coin.COIN).toString());
}
@Test
public void testDigits() throws Exception {
assertEquals("١٢.٣٤٥٦٧٨٩٠", NO_CODE.digits('\u0660').format(Coin.valueOf(1234567890l)).toString());
}
@Test
public void testDecimalMark() throws Exception {
assertEquals("1.00", NO_CODE.format(Coin.COIN).toString());