New to asking questions here and to Kotlin so,
I’m making a simple command parser for a command line app. I handle input but splitting the string at whitespaces but it could possibly result in "empty array indexes". This is the code I currently have for trying to remove it but, the console will never print "Found Whitespace", so I’m not quite sure how to go about this.
var input = readLine()?.trim()?.split(" ")
input = input?.toMutableList()
println(input)
if (input != null) {
for(i in input){
println("Checked")
if(i == " "){
println("Found Whitespace")
if (input != null) {
input.removeAt(input.indexOf(i))
}
}
}
}
println(input)
Here’s the console for a command that repeats the first number by the second
repeat 5 5 // command
[repeat, , , 5, , 5] //what the array looks like before whitespace removal
Checked
Checked
Checked
Checked
Checked
Checked
[repeat, , , 5, , 5] //what the array looks like after whitespace removal
Hopefully this makes sense…
>Solution :
If you want to split the string with consecutive spaces as a delimiter, you can use a regex for that.
val input = readLine()
if(input != null) {
val words = input.trim().split(Regex(" +")) // here '+' is used to capture one or more consecutive occurrences of " "
println(words)
}