Fix for #1

Author: wolfendale

src/main/scala/wolfendale/scalacheck/regexp/GenParser.scala

@@ -98,8 +98,9 @@ object GenParser extends RegexParsers with PackratParsers {
     val wordBoundary: Parser[CharacterClass.Term] = "\\b" ^^^ CharacterClass.WordBoundary
 
     lazy val char: Parser[CharacterClass.Term] = {
-      val meta = "\\" | "]"
-      (("\\" ~> meta) | "[^\\]\\\\]".r) ^^ CharacterClass.Literal
+      val normalChars = "[^\\]\\\\]".r
+      val meta = "\\" | "]" | "-"
+      (("\\" ~> meta) | normalChars | "\\" ~> normalChars) ^^ CharacterClass.Literal
     }
 
     lazy val characterClassTerm: Parser[CharacterClass.Term] =

src/test/scala/wolfendale/scalacheck/regexp/RegexpGenSpec.scala

@@ -34,5 +34,17 @@ class RegexpGenSpec extends WordSpec with MustMatchers with PropertyChecks {
           str must fullyMatch regex r
       }
     }
+
+    "create a valid generator from `^[a-zA-Z &`\\-\\'\\.]{1,35}$`" in {
+
+      val r = "^[a-zA-Z &`\\-\\'\\.]{1,35}$"
+      val gen = RegexpGen.from(r)
+
+      forAll(gen) {
+        str =>
+          println(str)
+          str must fullyMatch regex r
+      }
+    }
   }
 }