How to compare a string with another where the one has space in between

Question

How do I compare these two string :

val a = \"fit bit versa\"
val b = \"fitbit\"

another example

val a = \"go pro hero 6\"
         


        

Answer 1

Here's an approach using for/yield that turned out similar to @leo-c approach. A for is used to generate a sliding window of length i from words to return the original words and combinations.

def matchPattern(a:String, b: String): Boolean =  {
  val words = a.split(" ")

  val combinations = words ++ (for(
    i <- (2 to words.size);
    acc <- words.sliding(i)
  ) yield acc).map(_.mkString)

  combinations.contains(b)
} 

Test cases:

val a = "fit bit versa"
val b = "fitbit"

val c = "go pro hero 6"
val d = "gopro"

val e = "hero go pro  6"  
val f = "gopro"

//false
val g = "vegan protein powder"
val h = "vega"

val i = "foo gopro bar"
val j = "gopro"

val k = "foo go pro hero bar"
val l = "goprohero"

scala> matchPattern(a,b) && matchPattern(c,d) && matchPattern(e,f) &&  !matchPattern(g,h) && matchPattern(i,j) && matchPattern(k,l) 

res175: Boolean = true