GEO::BooleanExpression Class Reference

A simple parser for boolean expressions. More...

#include <geogram/basic/boolean_expression.h>

Public Member Functions
	BooleanExpression (const std::string &expr)
	Constructs a boolean expression.
bool	operator() (index_t x)
	Evaluates the boolean expression.

Protected Member Functions
bool	parse_or ()
bool	parse_and ()
bool	parse_factor ()
bool	parse_variable ()
char	cur_char () const
void	next_char ()

Detailed Description

A simple parser for boolean expressions.

Definition at line 57 of file boolean_expression.h.

Constructor & Destructor Documentation

BooleanExpression()

GEO::BooleanExpression::BooleanExpression

(

const std::string &

expr

)

Constructs a boolean expression.

Parameters

[in]

expr

the expression, with the following syntax: Variables: A..Z or x0..x31 and: '&' or '*' or: '|' or '+' xor: '^' difference: '-' special: '*' for union one can use '(' and ')' to group subexpression

Member Function Documentation

operator()()

bool GEO::BooleanExpression::operator()

(

index_t

x

)

Evaluates the boolean expression.

Parameters

[in]

x

the different bits of x correspond to the variables A..Z or x0..x31.

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

• geogram/basic/boolean_expression.h