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Add information measurements (e.g., KiB, MiB, KB, MB, etc.) #216

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Add information measurements (e.g., KiB, MiB, KB, MB, etc.) #216

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69b9f3e
Add binary prefix-based data amount units (e.g., KiB, MiB, GiB, etc.)…
altaiezior Mar 23, 2026
09aceca
Add convenience units for byte multiples (e.g., kilobyte, kibibyte) a…
altaiezior Mar 23, 2026
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73 changes: 72 additions & 1 deletion unicode/src/main/java/systems/uom/unicode/CLDR.java
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,7 @@
*/
package systems.uom.unicode;

import static javax.measure.BinaryPrefix.*;
import static javax.measure.MetricPrefix.*;
import static tech.units.indriya.unit.Units.CUBIC_METRE;
import static tech.units.indriya.unit.Units.METRE;
Expand Down Expand Up @@ -67,7 +68,7 @@
*
* @author <a href="mailto:werner@uom.systems">Werner Keil</a>
* @see <a href="http://cldr.unicode.org">Unicode CLDR</a>
* @version 2.6, Jul 1, 2025
* @version 2.7, Mar 18, 2026
*/
public final class CLDR extends AbstractSystemOfUnits {

Expand Down Expand Up @@ -926,6 +927,76 @@ public static CLDR getInstance() {
*/
public static final Unit<Information> BYTE = addUnit(BIT.multiply(8), "Byte", "byte");

/**
* Constant for unit of data amount: kilobyte<br>
* This is a <b>convenience method</b> for <code>KILO(BYTE)</code>.
*
* @stable ICU 54
*/
public static final Unit<Information> KILOBYTE = addUnit(KILO(BYTE), "Kilobyte", "kB", true);

/**
* Constant for unit of data amount: kibibyte<br>
* This is a <b>convenience method</b> for <code>KIBI(BYTE)</code>.
*/
public static final Unit<Information> KIBIBYTE = addUnit(KIBI(BYTE), "Kibibyte", "KiB", true);

/**
* Constant for unit of data amount: megabyte<br>
* This is a <b>convenience method</b> for <code>MEGA(BYTE)</code>.
*
* @stable ICU 54
*/
public static final Unit<Information> MEGABYTE = addUnit(MEGA(BYTE), "Megabyte", "MB", true);

/**
* Constant for unit of data amount: mebibyte<br>
* This is a <b>convenience method</b> for <code>MEBI(BYTE)</code>.
*/
public static final Unit<Information> MEBIBYTE = addUnit(MEBI(BYTE), "Mebibyte", "MiB", true);

/**
* Constant for unit of data amount: gigabyte<br>
* This is a <b>convenience method</b> for <code>GIGA(BYTE)</code>.
*
* @stable ICU 54
*/
public static final Unit<Information> GIGABYTE = addUnit(GIGA(BYTE), "Gigabyte", "GB", true);

/**
* Constant for unit of data amount: gibibyte<br>
* This is a <b>convenience method</b> for <code>GIBI(BYTE)</code>.
*/
public static final Unit<Information> GIBIBYTE = addUnit(GIBI(BYTE), "Gibibyte", "GiB", true);

/**
* Constant for unit of data amount: terabyte<br>
* This is a <b>convenience method</b> for <code>TERA(BYTE)</code>.
*
* @stable ICU 54
*/
public static final Unit<Information> TERABYTE = addUnit(TERA(BYTE), "Terabyte", "TB", true);

/**
* Constant for unit of data amount: tebibyte<br>
* This is a <b>convenience method</b> for <code>TEBI(BYTE)</code>.
*/
public static final Unit<Information> TEBIBYTE = addUnit(TEBI(BYTE), "Tebibyte", "TiB", true);

/**
* Constant for unit of data amount: petabyte<br>
* This is a <b>convenience method</b> for <code>PETA(BYTE)</code>.
*
* @stable ICU 63
*/
public static final Unit<Information> PETABYTE = addUnit(PETA(BYTE), "Petabyte", "PB", true);

/**
* Constant for unit of data amount: pebibyte<br>
* This is a <b>convenience method</b> for <code>PEBI(BYTE)</code>.
*/
public static final Unit<Information> PEBIBYTE = addUnit(PEBI(BYTE), "Pebibyte", "PiB", true);

/**
* The unit for binary information rate (standard name <code>bit/s</code>).
*
Expand Down
12 changes: 10 additions & 2 deletions unicode/src/test/java/systems/uom/unicode/CLDRTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -57,7 +57,11 @@ public void testToString() {
assertEquals("in-hg", INCH_HG.toString());
assertEquals("dct", DECI(CARAT).toString());
assertEquals("st", STONE.toString());
assertEquals("Kist", KIBI(STONE).toString());
assertEquals("Kist", KIBI(STONE).toString());
assertEquals("kB", KILOBYTE.toString());
assertEquals("KiB", KIBIBYTE.toString());
assertEquals("MB", MEGABYTE.toString());
assertEquals("MiB", MEBIBYTE.toString());
}

@Test
Expand All @@ -72,6 +76,8 @@ public void testGetSymbol() {
public void testGetName() {
assertEquals("Kilometer", KILOMETER.getName());
assertEquals("Gram", GRAM.getName());
assertEquals("Kilobyte", KILOBYTE.getName());
assertEquals("Kibibyte", KIBIBYTE.getName());
}

@Test
Expand All @@ -85,6 +91,8 @@ public void testConvert() {
public void testParse() {
assertEquals(KILOGRAM, AbstractUnit.parse("kg"));
assertEquals(CARAT, AbstractUnit.parse("ct"));
assertEquals(DECI(METRE), AbstractUnit.parse("dm"));
assertEquals(DECI(METRE), AbstractUnit.parse("dm"));
assertEquals(KILOBYTE, AbstractUnit.parse("kB"));
assertEquals(KIBIBYTE, AbstractUnit.parse("KiB"));
}
}