CODEWITHSUNDEEP
scalaparser-combinators
user3555068
user3555068

Reputation: 67

Can't import RegexParsers

I'm trying to run a file from the Textbook using but my IDE tells me it can't resolve the RegexParsers when I try to extend it. Below is the code from the textbook. I added the import statement which my IDE tells me is unused.

import scala.util.parsing.combinator._

class ExprParser extends RegexParsers {
  val number = "[0-9]+".r
  def expr: Parser[Any] = term ~ opt(("+" | "-") ~ expr)
  def term: Parser[Any] = factor ~ rep("*" ~ factor)
  def factor: Parser[Any] = number | "(" ~ expr ~ ")"
}

Upvotes: 2

Views: 329

Answers (1)

user3555068
user3555068

Reputation: 67

Ok so I solved this myself and I'll leave it up for anybody having a similar issue add 

libraryDependencies += "org.scala-lang.modules" %% "scala-parser-combinators" % "1.0.5"

to your build.sbt file then click import project in the top right

Upvotes: 3

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