Broaden the alternate attribute syntax for Sass.

git-svn-id: svn://hamptoncatlin.com/haml/trunk@541 7063305b-7217-0410-af8c-cdc13e5119b9

lib/sass/engine.rb

@@ -39,14 +39,16 @@ module Sass
     # The character used to denote a compiler directive.
     DIRECTIVE_CHAR = ?@
 
-    # The regex that matches attributes of the form <tt>:name attr</tt>.
+    # The regex that matches and extracts data from
-    ATTRIBUTE = /:([^\s=:]+)\s*(=?)(?:\s+|$)(.*)/
+    # attributes of the form <tt>:name attr</tt>.
+    ATTRIBUTE = /^:([^\s=:]+)\s*(=?)(?:\s+|$)(.*)/
 
     # The regex that matches attributes of the form <tt>name: attr</tt>.
-    ALTERNATE_ATTRIBUTE_SELECTOR = /^[^\s:]+:(\s+|$)/
+    ATTRIBUTE_ALTERNATE_MATCHER = /^[^\s:]+\s*[=:](\s|$)/
 
-    # The regex that extracts data from attributes of the form <tt>name: attr</tt>.
+    # The regex that matches and extracts data from
-    ATTRIBUTE_ALTERNATE = /([^\s=]+):\s*(=?)\s*(.*)/
+    # attributes of the form <tt>name: attr</tt>.
+    ATTRIBUTE_ALTERNATE = /^([^\s=:]+)(\s*=|:)(?:\s+|$)(.*)/
 
     # Creates a new instace of Sass::Engine that will compile the given
     # template string when <tt>render</tt> is called.
@@ -217,18 +219,18 @@ module Sass
     end
 
     def parse_line(line)
-      if line[0] == ATTRIBUTE_CHAR
-        parse_attribute(line, ATTRIBUTE)
-      elsif line.match(ALTERNATE_ATTRIBUTE_SELECTOR)
-        parse_attribute(line, ATTRIBUTE_ALTERNATE)
-      else
       case line[0]
+      when ATTRIBUTE_CHAR
+        parse_attribute(line, ATTRIBUTE)
       when Constant::CONSTANT_CHAR
         parse_constant(line)
       when COMMENT_CHAR
         parse_comment(line)
       when DIRECTIVE_CHAR
         parse_directive(line)
+      else
+        if line =~ ATTRIBUTE_ALTERNATE_MATCHER
+          parse_attribute(line, ATTRIBUTE_ALTERNATE)
         else
           Tree::RuleNode.new(line, @options[:style])
         end
@@ -242,7 +244,7 @@ module Sass
         raise SyntaxError.new("Invalid attribute: \"#{line}\"", @line)
       end
 
-      if eq[0] == SCRIPT_CHAR
+      if eq.strip[0] == SCRIPT_CHAR
         value = Sass::Constant.parse(value, @constants, @line).to_s
       end
 

test/sass/engine_test.rb

@@ -22,7 +22,11 @@ class SassEngineTest < Test::Unit::TestCase
     ":= a" => 'Invalid attribute: ":= a"',
     "a\n  :b" => 'Invalid attribute: ":b "',
     "a\n  :b: c" => 'Invalid attribute: ":b: c"',
+    "a\n  :b:c d" => 'Invalid attribute: ":b:c d"',
+    "a\n  :b=c d" => 'Invalid attribute: ":b=c d"',
     "a\n  :b c;" => 'Invalid attribute: ":b c;" (This isn\'t CSS!)',
+    "a\n  b : c" => 'Invalid attribute: "b : c"',
+    "a\n  b=c: d" => 'Invalid attribute: "b=c: d"',
     ":a" => 'Attributes aren\'t allowed at the root of a document.',
     "!" => 'Invalid constant: "!"',
     "!a" => 'Invalid constant: "!a"',
@@ -61,7 +65,7 @@ class SassEngineTest < Test::Unit::TestCase
         assert(err.sass_line, "Line: #{key}")
         assert_match(/\(sass\):[0-9]+/, err.backtrace[0], "Line: #{key}")
       else
-        assert(false, "Exception not raised for '#{key}'!")
+        assert(false, "Exception not raised for\n#{key}")
       end
     end
   end

test/sass/results/alt.css

@@ -1,3 +1,4 @@
 h1 { float: left; width: 274px; height: 75px; margin: 0; background-repeat: no-repeat; background-image: none; }
 h1 a:hover, h1 a:visited { color: green; }
 h1 b:hover { color: red; background-color: green; }
+h1 const { nosp: 3; sp: 3; }

test/sass/templates/alt.sass

@@ -11,3 +11,6 @@ h1
   b:hover
     color: red
     :background-color green
+  const
+    nosp= 1 + 2
+    sp = 1 + 2