Remove all attribute selectors that are not Set or Exact.

sky/engine/core/css/parser/CSSGrammar.y

 %{
 
 /*
  *  Copyright (C) 2002-2003 Lars Knoll (knoll@kde.org)
  *  Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  *  Copyright (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *  Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  *  Copyright (C) 2012 Intel Corporation. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
@@ skipping 129 matching lines @@
 
 %expect 0
 
 %nonassoc LOWEST_PREC
 
 %left UNIMPORTANT_TOK
 
 %token WHITESPACE SGML_CD
 %token TOKEN_EOF 0
 
-%token INCLUDES
-%token DASHMATCH
-%token BEGINSWITH
-%token ENDSWITH
-%token CONTAINS
-
 %token <string> STRING
 %right <string> IDENT
 %token <string> NTH
 
 %nonassoc <string> HEX
 %nonassoc <string> IDSEL
 %nonassoc ':'
 %nonassoc '.'
 %nonassoc '['
 %nonassoc <string> '*'
@@ skipping 98 matching lines @@
 %type <selector> class
 %type <selector> attrib
 %type <selector> pseudo
 
 %type <boolean> declaration_list
 %type <boolean> decl_list
 %type <boolean> declaration
 
 %type <boolean> prio
 
-%type <integer> match
 %type <integer> unary_operator
 %type <integer> maybe_unary_operator
 %type <character> operator
 
 %type <valueList> expr
 %type <value> term
 %type <value> unary_term
 %type <value> function
 %type <value> calc_func_term
 %type <character> calc_func_operator
@@ skipping 536 matching lines @@
     attr_match_type
     | /* empty */ { $$ = CSSSelector::CaseSensitive; }
     ;
 
 attrib:
     '[' maybe_space attr_name closing_square_bracket {
         $$ = parser->createFloatingSelector();
         $$->setAttribute(QualifiedName($3), CSSSelector::CaseSensitive);
         $$->setMatch(CSSSelector::Set);
     }
-    | '[' maybe_space attr_name match maybe_space ident_or_string maybe_space maybe_attr_match_type closing_square_bracket {
+    | '[' maybe_space attr_name '=' maybe_space ident_or_string maybe_space maybe_attr_match_type closing_square_bracket {
         $$ = parser->createFloatingSelector();
         $$->setAttribute(QualifiedName($3), $8);
-        $$->setMatch((CSSSelector::Match)$4);
+        $$->setMatch(CSSSelector::Exact);
         $$->setValue($6);
     }
     | '[' selector_recovery closing_square_bracket {
         YYERROR;
     }
   ;
 
-match:
-    '=' {
-        $$ = CSSSelector::Exact;
-    }
-    | INCLUDES {
-        $$ = CSSSelector::List;
-    }
-    | DASHMATCH {
-        $$ = CSSSelector::Hyphen;
-    }
-    | BEGINSWITH {
-        $$ = CSSSelector::Begin;
-    }
-    | ENDSWITH {
-        $$ = CSSSelector::End;
-    }
-    | CONTAINS {
-        $$ = CSSSelector::Contain;
-    }
-    ;
-
 ident_or_string:
     IDENT
   | STRING
     ;
 
 pseudo:
     ':' error_location IDENT {
         if ($3.isFunction())
             YYERROR;
         $$ = parser->createFloatingSelector();
@@ skipping 438 matching lines @@
     ;
 
 rule_error_recovery:
     /* empty */
   | rule_error_recovery error
   | rule_error_recovery invalid_square_brackets_block
   | rule_error_recovery invalid_parentheses_block
     ;
 
 %%