149 lines
3.0 KiB
Kotlin
149 lines
3.0 KiB
Kotlin
package com.infendro.bytearray
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import com.infendro.bytearray.ByteOrder.BIG_ENDIAN
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import kotlin.experimental.and
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import kotlin.experimental.or
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import kotlin.experimental.xor
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infix fun ByteArray.and(
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that: ByteArray,
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): ByteArray {
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if (this.size != that.size) throw Exception()
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return ByteArray(size) { i ->
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this[i] and that[i]
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}
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}
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infix fun ByteArray.or(
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that: ByteArray,
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): ByteArray {
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if (this.size != that.size) throw Exception()
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return ByteArray(size) { i ->
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this[i] or that[i]
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}
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}
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infix fun ByteArray.xor(
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that: ByteArray,
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): ByteArray {
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if (this.size != that.size) throw Exception()
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return ByteArray(size) { i ->
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this[i] xor that[i]
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}
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}
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fun ByteArray.padStart(
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length: Int,
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padByte: Byte,
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): ByteArray {
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return buildList {
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repeat(length - size) {
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add(padByte)
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}
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addAll(this)
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}.toByteArray()
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}
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fun ByteArray.padEnd(
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length: Int,
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padByte: Byte,
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): ByteArray {
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return buildList {
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addAll(this)
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repeat(length - size) {
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add(padByte)
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}
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}.toByteArray()
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}
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fun ByteArray.toInt(
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order: ByteOrder = BIG_ENDIAN,
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): Int {
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if (size != 4) throw Exception()
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val bytes = order.normalize(this)
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return bytes.fold(0) { acc, byte ->
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(acc shl 8) or (byte.toInt() and 0xFF)
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}
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}
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fun ByteArray.toIntArray(
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order: ByteOrder = BIG_ENDIAN,
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): IntArray {
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if (size % 4 != 0) throw Exception()
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return toList()
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.chunked(4)
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.map { it.toByteArray().toInt(order) }
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.toIntArray()
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}
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fun ByteArray.toLong(
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order: ByteOrder = BIG_ENDIAN,
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): Long {
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if (size != 8) throw Exception()
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val bytes = order.normalize(this)
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return bytes.fold(0L) { acc, byte ->
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(acc shl 8) or (byte.toLong() and 0xFFL)
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}
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}
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fun ByteArray.toLongArray(
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order: ByteOrder = BIG_ENDIAN,
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): LongArray {
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if (size % 8 != 0) throw Exception()
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return toList()
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.chunked(8)
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.map { it.toByteArray().toLong(order) }
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.toLongArray()
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}
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fun ByteArray.toUInt(
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order: ByteOrder = BIG_ENDIAN,
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): UInt {
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if (size != 4) throw Exception()
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val bytes = order.normalize(this)
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return bytes.fold(0U) { acc, byte ->
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(acc shl 8) or (byte.toUInt() and 0xFFU)
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}
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}
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fun ByteArray.toUIntArray(
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order: ByteOrder = BIG_ENDIAN,
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): UIntArray {
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if (size % 4 != 0) throw Exception()
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return toList()
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.chunked(4)
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.map { it.toByteArray().toUInt(order) }
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.toUIntArray()
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}
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fun ByteArray.toULong(
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order: ByteOrder = BIG_ENDIAN,
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): ULong {
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if (size != 8) throw Exception()
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val bytes = order.normalize(this)
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return bytes.fold(0UL) { acc, byte ->
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(acc shl 8) or (byte.toULong() and 0xFFUL)
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}
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}
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fun ByteArray.toULongArray(
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order: ByteOrder = BIG_ENDIAN,
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): ULongArray {
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if (size % 8 != 0) throw Exception()
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return toList()
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.chunked(8)
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.map { it.toByteArray().toULong(order) }
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.toULongArray()
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}
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