compiler.c File Reference

#include <ctype.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Include dependency graph for compiler.c:

Classes
struct	Var

Macros
#define	LPAREN   255
#define	RPAREN   254
#define	COMMA   253
#define	ERR   (-1)
#define	UNI_PREC   7 /* unary ops have highest precedence */
#define	MAX_STACK   32
#define	MAX_PROG   32
#define	OP_SHIFT   8
#define	OP_MASK   0xff
#define	MAX_OPX   64 /* max number of operands */
#define	MAXFLDLEN   64 /* longest allowed operand name */

Enumerations
enum	{   HALT, ADD, SUB, MULT,   DIV, AND, OR, GT,   GE, EQ, NE, LT,   LE, NEG, NOT, CONST,   VAR, ABS, FLOOR, SIN,   COS, TAN, ASIN, ACOS,   ATAN, PITOK, DEGRAD, RADDEG,   LOG, LOG10, EXP, SQRT,   POW, ATAN2 }

Functions
static int	next_token (void)
static int	chk_funcs (void)
static void	skip_double (void)
static int	compile (int prec)
static int	execute (double *result)
static int	parse_fieldname (char name[], int len)
int	compileExpr (char *exp, char *errbuf)
int	evalExpr (double *vp, char *errbuf)
int	setOperand (char *name, double valu)
int	allOperandsSet ()
int	getAllOperands (char ***ops)
int	getSetOperands (char ***ops)
int	getUnsetOperands (char ***ops)
void	compiler_log (char *name, double value)
static int	parse_fieldname (name, int len)

Variables
static int	precedence [] = { 0, 5, 5, 6, 6, 2, 1, 4, 4, 3, 3, 4, 4 }
static double	stack [MAX_STACK]
static double *	sp
static int	program [MAX_PROG]
static int *	pc
static Var	vars [MAX_OPX]
static int	nvars
static double	consts [MAX_OPX]
static int	nconsts
static int	parens_nest
static char *	err_msg
static char *	cexpr
static char *	lcexpr

Macro Definition Documentation

COMMA

#define COMMA   253

ERR

#define ERR   (-1)

LPAREN

#define LPAREN   255

MAX_OPX

#define MAX_OPX   64 /* max number of operands */

MAX_PROG

#define MAX_PROG   32

MAX_STACK

#define MAX_STACK   32

MAXFLDLEN

#define MAXFLDLEN   64 /* longest allowed operand name */

OP_MASK

#define OP_MASK   0xff

OP_SHIFT

#define OP_SHIFT   8

RPAREN

#define RPAREN   254

UNI_PREC

#define UNI_PREC   7 /* unary ops have highest precedence */

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
HALT
ADD
SUB
MULT
DIV
AND
OR
GT
GE
EQ
NE
LT
LE
NEG
NOT
CONST
VAR
ABS
FLOOR
SIN
COS
TAN
ASIN
ACOS
ATAN
PITOK
DEGRAD
RADDEG
LOG
LOG10
EXP
SQRT
POW
ATAN2

Function Documentation

allOperandsSet()

int allOperandsSet

(

)

chk_funcs()

static int chk_funcs ( void  )

static

compile()

static int compile ( int  prec )

static

compileExpr()

int compileExpr	(	char *	exp,
		char *	errbuf
	)

compiler_log()

void compiler_log	(	char *	name,
		double	value
	)

evalExpr()

int evalExpr	(	double *	vp,
		char *	errbuf
	)

execute()

static int execute ( double *  result )

static

getAllOperands()

int getAllOperands

(

char ***

ops

)

getSetOperands()

int getSetOperands

(

char ***

ops

)

getUnsetOperands()

int getUnsetOperands

(

char ***

ops

)

next_token()

static int next_token ( void  )

static

parse_fieldname() [1/2]

static int parse_fieldname ( char  name[], int  len  )

static

parse_fieldname() [2/2]

static int parse_fieldname ( name  , int  len  )

static

setOperand()

int setOperand	(	char *	name,
		double	valu
	)

skip_double()

static void skip_double ( void  )

static

Variable Documentation

cexpr

char* cexpr

static

consts

double consts[MAX_OPX]

static

err_msg

char* err_msg

static

lcexpr

char * lcexpr

static

nconsts

int nconsts

static

nvars

int nvars

static

parens_nest

int parens_nest

static

pc

int * pc

static

precedence

int precedence[] = { 0, 5, 5, 6, 6, 2, 1, 4, 4, 3, 3, 4, 4 }

static

program

int program[MAX_PROG]

static

sp

double * sp

static

stack

double stack[MAX_STACK]

static

vars

Var vars[MAX_OPX]

static