Finding information about scala operators

Question

Im reading http://debasishg.blogspot.com/2008/04/external-dsls-made-easy-with-scala.html and I'm trying to find information about the "<~" statement, for example:

def trans = "(" ~> repsep(trans_spec, ",") <~ ")"

Do I have a reasonable assumption that this is related to the product operator ("~") along with the listings?

• What is he doing?
• In the future, how do I look for such operators? For example, this is not good for google "<~".

EDIT:

Found "<~" information in Scala combinator analyzers - distinguish between numeric strings and variable strings

Question 2 remains

Answer 1

2, , Scala , . Scaladocs .

Answer 2

:

http://jim-mcbeath.blogspot.com/2008/12/scala-operator-cheat-sheet.html

Answer 3

2, ( ) ScalaDoc, , , .

( ScalaDocs, ) : ScalaDoc Name Index