centralize place to define the default separator

2 files changed, 10 insertions, 7 deletions

diff --git a/src/main/scala/spray/boilerplate/TemplateParser.scala b/src/main/scala/spray/boilerplate/TemplateParser.scala
index 408e551..6d8e22d 100644
--- a/src/main/scala/spray/boilerplate/TemplateParser.scala
+++ b/src/main/scala/spray/boilerplate/TemplateParser.scala
@@ -20,7 +20,10 @@ case class LiteralString(literal: String) extends TemplateElement
 /* An offset to be replaced by the current index */
 case class Offset(i: Int) extends TemplateElement
 /** A region in which to apply expansions */
-case class Expand(inner: TemplateElement, separator: String) extends TemplateElement
+case class Expand(inner: TemplateElement, separator: String = Expand.defaultSeparator) extends TemplateElement
+object Expand {
+  val defaultSeparator = ", "
+}
 
 object TemplateParser extends RegexParsers {
   override type Elem = Char
@@ -42,7 +45,7 @@ object TemplateParser extends RegexParsers {
   def outsideTemplate: Parser[LiteralString] = """(?s).+?(?=(\[#)|(\z))""".r ^^ (LiteralString(_))
 
   def expand: Parser[Expand] = "[#" ~> elements ~ "#" ~ separatorChars <~ "]" ^^ {
-    case els ~ x ~ sep ⇒ Expand(els, sep.getOrElse(", "))
+    case els ~ x ~ sep ⇒ Expand(els, sep.getOrElse(Expand.defaultSeparator))
   }
   def outsideElements: Parser[TemplateElement] =
     rep1(expand | outsideTemplate) ^^ maybeSequence
diff --git a/src/test/scala/spray/boilerplate/TemplateParserSpecs.scala b/src/test/scala/spray/boilerplate/TemplateParserSpecs.scala
index 1e5e844..85b99af 100644
--- a/src/test/scala/spray/boilerplate/TemplateParserSpecs.scala
+++ b/src/test/scala/spray/boilerplate/TemplateParserSpecs.scala
@@ -10,20 +10,20 @@ class TemplateParserSpecs extends Specification {
       parse("abc") === LiteralString("abc")
     }
     "just expansion" in {
-      parse("[# def #]") === Expand(LiteralString(" def "), ", ")
+      parse("[# def #]") === Expand(LiteralString(" def "))
     }
     "multiple expansions" in {
       parse("[#a#]abc[#b#]") ===
-        Expand(LiteralString("a"), ", ") ~ LiteralString("abc") ~ Expand(LiteralString("b"), ", ")
+        Expand(LiteralString("a")) ~ LiteralString("abc") ~ Expand(LiteralString("b"))
     }
     "one surrounded expansion" in {
-      parse("abc[#a#]def") === LiteralString("abc") ~ Expand(LiteralString("a"), ", ") ~ LiteralString("def")
+      parse("abc[#a#]def") === LiteralString("abc") ~ Expand(LiteralString("a")) ~ LiteralString("def")
     }
     "an expanded number" in {
-      parse("[#T1#]") === Expand(LiteralString("T") ~ Offset(1), ", ")
+      parse("[#T1#]") === Expand(LiteralString("T") ~ Offset(1))
     }
     "a quoted number" in {
-      parse("[#T##1#]") === Expand(LiteralString("T1"), ", ")
+      parse("[#T##1#]") === Expand(LiteralString("T1"))
     }
   }
 }