Scala模板：将字符串映射到模板

Question

I use Scalate for templating. Usually it goes this way:

• Template:

  Hello {{name}}

• Parameters:

  `Map("name" -> "Peter")

• Result:

  Hello Peter

Is there a way to get the Parameter Map as Result ?

• Template:

  Hello {{name}}

• Request:

  Hello Peter

• Result:

  Map("name" -> "Peter")

Answer 1

Maybe you're looking for regex with named groups?

//Regex with named groups
val pattern = """^Hello (?<firstname>\w+) (?<lastname>\w+)$""".r

val groups = List(
    "firstname",
    "lastname"
)

def matchAll(str: String): Option[Map[String, String]] = pattern
    .findFirstMatchIn(str)
    .map { matched =>
      groups.map(name => name -> matched.group(name)).toMap
    }

matchAll("Hello Joe Doe") //Some(Map(firstname -> Joe, lastname -> Doe))