math::TMatcher< T > Class Template Reference

#include <matcher.h>

Inheritance diagram for math::TMatcher< T >:

Collaboration diagram for math::TMatcher< T >:

List of all members.

Public Types
typedef std::map< std::string, TNode< T > >	TResult
Static Public Member Functions
static bool	matchExact (const TMatch< T > *AMatch, const TNode< T > *AExpr, TMatchRegistry< T > *AReg=0)
static bool	match (const TMatch< T > *AMatch, const TNode< T > *AExpr, TMatchRegistry< T > *AReg=0)
static unsigned	match (const std::string &AMatch, const TNode< T > *AExpr, TResult &AResult)

---

Detailed Description

template<class T>
class math::TMatcher< T >

TMatcher<> is a dynamic matching system for symbolic expressions. One application for that is simplifying expressions.

TMatcher<> class is really to be done. But it will rock then. Example:

   TMatcher<T>::TResult matchResult;
   if (TMatcher<T>::match("a+a", expr, machResult))
       return transform(expr, machResult, "2*a+$");
 

the "$" means the remaining part not matched using given template match, here "a+a". Example: if you've a+b+a and want match a+a, then the remaining part is b; if you've a^2+b^(sin(2x)+2)+c^2+c*2*a and want to match a^2+2ab+b^2, then the matched parts is: "a^2+c^2+c*2*a" and the remaining part will be: "b^(sin(2x)+2)".

Definition at line 176 of file matcher.h.

---

Member Function Documentation

template<class T >

static bool math::TMatcher< T >::match	(	const TMatch< T > *	AMatch,
		const TNode< T > *	AExpr,
		TMatchRegistry< T > *	AReg = 0
	)		[static]

returns true when given pattern (AMatch) was matched in given expression (AExpr). The result data is stored into the registry on success only.

template<class T >

static unsigned math::TMatcher< T >::match	(	const std::string &	AMatch,
		const TNode< T > *	AExpr,
		TResult &	AResult
	)		[static]

match matches a given expression template on expression AExpr and puts its result into AResult.

template<class T >

static bool math::TMatcher< T >::matchExact	(	const TMatch< T > *	AMatch,
		const TNode< T > *	AExpr,
		TMatchRegistry< T > *	AReg = 0
	)		[static]

matchExact returns true when the template (AMatch) represents exactly the test expression (AExpr).

---

The documentation for this class was generated from the following file:

• matcher.h