+ Added support for "-i" flags and case insensitive matching

+ Renamed Expr class to DisjList, which is more descriptive
  as to its function
+ Added ' and " to the list of allowed characters in an
  unquoted string.
+ Added updated sniffer rule grammar to doxygen for the
  Parser class


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@685 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/private/storage/sniffer/Rule.h

@@ -16,7 +16,7 @@ class BPositionIO;
 
 namespace Sniffer {
 
-class Expr;
+class DisjList;
 
 /*! \brief A priority and a list of expressions to be used for sniffing out the
 	type of an untyped file.
@@ -34,10 +34,10 @@ private:
 	friend class Parser;
 
 	void Unset();
-	void SetTo(double priority, std::vector<Expr*>* list);
+	void SetTo(double priority, std::vector<DisjList*>* list);
 
 	double fPriority;
-	std::vector<Expr*> *fExprList;
+	std::vector<DisjList*> *fConjList;	// A list of DisjLists to be ANDed
 };
 
 }