EvalExpr Class Reference

EvalExpr class for algebraic expression in parameter strings. More...

#include <evalexpr.h>

Public Types
typedef yy::parser::semantic_type	semantic_type
typedef yy::parser::token	token

Public Member Functions
	EvalExpr (const std::string &line, bool debug=false)
int	next_token (semantic_type &yylval)
double	parse ()
double	get_symbol_value (char const *name)
function_t	get_symbol_function (char const *name)
void	set_result (double result)
void	error (const std::string &msg)

Private Attributes
const std::string	m_src
unsigned int	m_pos
double	m_result
bool	m_trace

Static Private Attributes
static SymbolTable	global_symbol_table = init_global_symbol()

Detailed Description

EvalExpr class for algebraic expression in parameter strings.

EvalExpr class provides support to evaluating algebraic expressions in parameter strings. The expression is evaluated into a single double precision value.

Supported expression includes arithmetic operations in in-fix notation, several transcendental functions including trigonometric and logarithmic functions, and numerical constant such as pi.

Definition at line 39 of file evalexpr.h.

Member Typedef Documentation

typedef yy::parser::semantic_type EvalExpr::semantic_type

Definition at line 43 of file evalexpr.h.

typedef yy::parser::token EvalExpr::token

Definition at line 44 of file evalexpr.h.

Constructor & Destructor Documentation

EvalExpr::EvalExpr ( const std::string &  line, bool  debug = false  )

inline

Definition at line 46 of file evalexpr.h.

Member Function Documentation

void EvalExpr::error

(

const std::string &

msg

)

Definition at line 223 of file evalexpr.cpp.

function_t EvalExpr::get_symbol_function

(

char const *

name

)

Definition at line 216 of file evalexpr.cpp.

double EvalExpr::get_symbol_value

(

char const *

name

)

Definition at line 209 of file evalexpr.cpp.

int EvalExpr::next_token

(

semantic_type &

yylval

)

Definition at line 72 of file evalexpr.cpp.

double EvalExpr::parse

(

)

Definition at line 177 of file evalexpr.cpp.

void EvalExpr::set_result

(

double

result

)

Definition at line 200 of file evalexpr.cpp.

Member Data Documentation

SymbolTable EvalExpr::global_symbol_table = init_global_symbol()

staticprivate

Definition at line 73 of file evalexpr.h.

unsigned int EvalExpr::m_pos

private

Definition at line 68 of file evalexpr.h.

double EvalExpr::m_result

private

Definition at line 69 of file evalexpr.h.

const std::string EvalExpr::m_src

private

Definition at line 67 of file evalexpr.h.

bool EvalExpr::m_trace

private

Definition at line 71 of file evalexpr.h.

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

• src/lib/Tools/evalexpr.h
• src/lib/Tools/evalexpr.cpp