splitting the parser up more

lib/parser/expression.rb

@@ -0,0 +1,18 @@
+module Parser
+  module Expression
+    include Parslet
+    
+    rule(:assignment) { name.as(:asignee) >> equal_sign >> expression.as(:asigned)  }
+
+    rule(:simple_expression) { function_call | integer | string | name }
+    rule(:expression) { (conditional | simple_expression ) >> newline.maybe }
+
+    def delimited_expressions( delimit )
+      ( (delimit.absent? >> (assignment | expression)).repeat(1)).as(:expressions) >> delimit >> newline.maybe
+    end
+
+    rule(:expressions_else)   { delimited_expressions(keyword_else) }
+    rule(:expressions_end)    { delimited_expressions(keyword_end) }
+
+  end
+end