Fix bug with escaping strings. Slightly better now, but not bug free,…

… details in the commented spec.

lib/phaad/generator.rb

@@ -54,7 +54,7 @@ def process(sexp)
       when :@int, :@float
         emit sexp[1]
       when :@tstring_content
-        emit "\"#{sexp[1]}\""
+        emit "\"#{sexp[1].gsub('"', '\"')}\""
       when :string_content 
         sexp[1..-1].each_with_index do |exp, i|
           unless exp[0] == :string_embexpr && exp[1][0][0] == :void_stmt

spec/generator/string_spec.rb

@@ -1,6 +1,21 @@
 require 'spec_helper'
 
 describe Phaad::Generator, 'string' do
+  context "escaping" do
+    it "should parse double quotes" do
+      compile(%q{'"'}).should == %q{"\"";}
+      compile(%q{'\"'}).should == %q{"\\\"";}
+      compile(%q{'\\"'}).should == %q{"\\\"";}
+    end
+
+    ##
+    # Ripper parses single quotes the same as double quotes. There's no way to
+    # know if a single quote was used or a double quote was.
+    # it "should respect escape sequences in single and double quotes" do
+    #   compile(%q{"\n"}).should == %q{"\\n";}
+    #   compile(%q{'\n'}).should == %q{"\\\\n";}
+    # end
+  end
   context "string interpolation" do
     it "should parse simple interpolation" do
       compile('"a #{b}"').should == '"a " . $b;'