lib/expressive.rb in expressive-0.0.2 vs lib/expressive.rb in expressive-0.0.3

@@ -1,8 +1,9 @@
 require 'polyglot'
 require 'treetop'
 require 'awesome_print'
+require 'rest_client'
 require File.join(File.dirname(__FILE__), 'scope')
 
 Treetop.load File.join(File.dirname(__FILE__), 'expressive_grammar.treetop')
 
 module Expressive
@@ -13,34 +14,43 @@
 
   def self.parse(expressions)
     @parser ||= ::ExpressiveParser.new
     @parser.parse(expressions)
   end
+
+  def self.all_symbols
+    %w(+ - * / = set sum post >= > < <= and or if)
+  end
 end
 
-
-module Boolean 
+module Boolean
   def eval(scope)
-   'true' == text_value 
+   'true' == text_value
   end
 end
 
-module IntegerValue 
-  def eval(scope) 
+module IntegerValue
+  def eval(scope)
     text_value.to_i
   end
 end
 
-module FloatValue 
-  def eval(scope) 
-    text_value.to_f 
+module FloatValue
+  def eval(scope)
+    text_value.to_f
   end
 end
 
+module StringValue
+  def eval(scope)
+    text_value.gsub('"', '')
+  end
+end
+
 class Program < Treetop::Runtime::SyntaxNode
   def eval(scope)
-    elements.map {|e| 
+    elements.map {|e|
       e.eval(scope)
     }.last
   end
 end
 
@@ -81,10 +91,10 @@
   def initialize(&block)
     @block = block
   end
 
   def call(scope, statements)
-    parameters = statements.map {|c| c.eval(scope)} 
+    parameters = statements.map {|c| c.eval(scope)}
     @block.call(*parameters)
   end
 end
 
 class Syntax < Function