Question

How to check if a string includes $sometext$ without numbers in Scala

Answer 1

import scala.util.matching.Regex

object DollarSymbolChecker {

  def includeDollarSymbolText(text: String): Boolean = {
    // Case-insensitive regex to match $word$
    val pattern: Regex = """(?i)\$[a-z]+\$""".r

    // Replace matched $word$ with empty string
    val cleanedText = pattern.replaceAllIn(text, "")

    // Check if any dollar symbol remains
    !cleanedText.contains("$")
  }

  def main(args: Array[String]): Unit = {
    println(includeDollarSymbolText("abc xy $text$ z"))            // ok
    println(includeDollarSymbolText("abc xy $ text$ z"))           // space
    println(includeDollarSymbolText("abc xy $$ z"))                // empty
    println(includeDollarSymbolText("abc 100 $text$ z"))           // ok
    println(includeDollarSymbolText("abc $1000 $text$ z"))         // open $
    println(includeDollarSymbolText("abc xy $IBM$ z $Microsoft$")) // ok
    println(includeDollarSymbolText("abc xy $F3$ z"))              // include number
    println(includeDollarSymbolText("abc xy $text z"))             // missing close $
  }
}
 
 
  
/*
run:
 
true
false
false
true
false
true
false
false
 
*/

 

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