Expr Class Reference

Class to define logical or arithmetical expression. More...

#include <abstree.h>

List of all members.

Public Member Functions
	Expr (int new_type, long rval, long lval)
long	EvaluateExprFor (HaAtom *aptr)
	evaluate the expression for the current atom
long	EvaluateProperty (long prop)
	Evaluate given Property for a Current Atom.
Static Public Member Functions
void	DeAllocateExpr (Expr *expr)
	A recursive function to delete Expression with all components of its branches.
int	DefineSetExpr (char *, Expr *)
Expr *	LookUpAtGroupExpr (const char *grp_name, HaMolSet *pmset)
	Create expression of atom group name.
Expr *	LookUpElement (const char *)
	create expression of element name
int	ParsePrimitiveExpr (HaMolSet *pmset, char **ptr_str_parse)
	Build Logical expression (QueryExpr) corresponding to a text of atom specifications (possibly wild-carded).
Public Attributes
int	type
	type of logical operation OpAnd, OpOr .. OpWithin etc
Branch	rgt
	left part of the expression
Branch	lft
	right part of the expression
Protected Member Functions
int	OpCode ()
	return code of operation
long	EvaluateExpr ()
	evaluate expression for current QAtom, QGroup, QChain
Static Protected Attributes
HaAtom *	QAtom = NULL
	Current Atom.
HaResidue *	QGroup = NULL
	Current Residue.
HaChain *	QChain = NULL
	Current Chain.

---

Detailed Description

Class to define logical or arithmetical expression.

---

Member Function Documentation

int Expr::ParsePrimitiveExpr (  HaMolSet *  pmset, char **  str_parse )  [static]

Build Logical expression (QueryExpr) corresponding to a text of atom specifications (possibly wild-carded). Generate a logical expression corresponding to string

---

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

• abstree.h
• abstree.cpp

---