Fix a bug where multiple spaces in a string literal would sometimes b…

…e folded together.

Closes #686

doc-src/SASS_CHANGELOG.md

@@ -13,6 +13,9 @@
 * Fix a bug in `sass-convert` where lists being passed as arguments to functions
   or mixins would lose their surrounding parentheses.
 
+* Fix a bug where multiple spaces in a string literal would sometimes be folded
+  together.
+
 ## 3.2.7
 
 * The \{Sass::Script::Functions#index `index`} and \{Sass::Script::Functions#zip

lib/sass/script/string.rb

@@ -33,7 +33,7 @@ def plus(other)
     # @see Node#to_s
     def to_s(opts = {})
       if @type == :identifier
-        return @value.gsub(/\s+/, " ")
+        return @value.gsub(/\n\s*/, " ")
       end
 
       return "\"#{value.gsub('"', "\\\"")}\"" if opts[:quote] == %q{"}

test/sass/scss/css_test.rb

@@ -1011,6 +1011,17 @@ def test_error_with_windows_newlines
 
   ## Regressions
 
+  def test_double_space_string
+    assert_equal(<<CSS, render(<<SCSS))
+.a {
+  content: "  a"; }
+CSS
+.a {
+  content: "  a";
+}
+SCSS
+  end
+
   def test_very_long_number_with_important_doesnt_take_forever
     assert_equal(<<CSS, render(<<SCSS))
 .foo {