Python style array slicing in Kotlin
import pyslice.get
fun main(args: Array<String>) {
val a = arrayOf(0, 1, 2, 3, 4, 5, 6, 7, 8, 9)
// stepping
val even = a["::2"] // even = [0, 2, 4, 6, 8]
val odd = a["1::2"] // odd = [1, 3, 5, 7, 9]
// reversing
val reversed = a["::-1"] // reversed = [9, 8, 7, 6, 5, 4, 3, 2, 1, 0]
val reversedHalf = a[":4:-1"] // reversedHalf = [9, 8, 7, 6, 5]
// string interpolation
val start = 8
val stop = 2
val variables = a["$start:$stop:-3"] // variables = [8, 5]
// negative start, stop, step
val reversedOdd = a["-1:-11:-2"] // reversedOdd = [9, 7, 5, 3, 1]
// no ArrayIndexOutOfBoundsException
val outOfBounds = a["500:600:2"] // outOfBounds = []
}Download the latest JAR or grab via Maven:
<dependency>
<groupId>io.github.pravsonawane</groupId>
<artifactId>pyslice</artifactId>
<version>0.x</version>
</dependency>or Gradle:
implementation 'io.github.pravsonawane:pyslice:0.x'The following will run all tests
./gradlew test
This library is a way to bring the very concise python style array slicing notations to Kotlin. If you understand how array slicing works in Python, using this library should be fairly straight forward. However, the following are worth considering:
- This library aims to exactly match the behaviour of python array slice notations (no
ArrayIndexOutOfBoundsException). - It uses a magic string to specify the slicing which might not be idiomatic Kotlin.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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