evalCond.c
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#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <expValue.h>
#include <tepal_pars.h>
#include <evalCond.h>
/*
* static function (internal only)
*/
static
int
evalIntComp(int op, s_expVal * _op1, s_expVal * _op2)
{
long op1 = expValueInt(_op1);
long op2 = expValueInt(_op2);
switch (op) {
case EQ: return (op1 == op2);
case NE: return (op1 != op2);
case LT: return (op1 < op2);
case GT: return (op1 > op2);
case LE: return (op1 <= op2);
case GE: return (op1 >= op2);
}
}
static
int
evalFloatComp(int op, s_expVal * _op1, s_expVal * _op2)
{
double op1 = expValueFloat(_op1);
double op2 = expValueFloat(_op2);
switch (op) {
case EQ: return (op1 == op2);
case NE: return (op1 != op2);
case LT: return (op1 < op2);
case GT: return (op1 > op2);
case LE: return (op1 <= op2);
case GE: return (op1 >= op2);
}
}
static
int
evalStringComp(int op, s_expVal * _op1, s_expVal * _op2)
{
char * op1 = expValueString(_op1);
char * op2 = expValueString(_op2);
long ret;
switch (op) {
case EQ: ret = (! strcmp(op1, op2));
case NE: ret = strcmp(op1, op2);
case LT: ret = (strcmp(op1, op2) < 0) ? 1 : 0;
case GT: ret = (strcmp(op1, op2) > 0) ? 1 : 0;
case LE: ret = (strcmp(op1, op2) <= 0) ? 1 : 0;
case GE: ret = (strcmp(op1, op2) >= 0) ? 1 : 0;
}
free(op1);
free(op2);
return ret;
}
/*
* public functions (interface)
*/
int
evalCondExpr(s_expVal * _op)
{
switch (expValueGetType(_op)) {
case EXP_TYP_INT:
return expValueInt(_op);
case EXP_TYP_FLOAT:
return expValueInt(_op);
case EXP_TYP_STRING:
{
char * op = expValueString(_op);
long ret = strlen(op);
free(op);
return ret;
}
}
return 0;
}
int
evalComp(int op, s_expVal * op1, s_expVal * op2)
{
switch (expValueGetType(op1)) {
case EXP_TYP_INT:
return evalIntComp(op, op1, op2);
case EXP_TYP_FLOAT:
return evalFloatComp(op, op1, op2);
case EXP_TYP_STRING:
return evalStringComp(op, op1, op2);
}
}