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PrettyPrint.c
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PrettyPrint.c
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/*
* PrettyPrint.c
*
* Created on: Mar 9, 2016
* Author: Victor Bandur
*/
#include "PrettyPrint.h"
#include <assert.h>
#include <stdio.h>
#include <string.h>
#define ASSERT_CHECK_BOOL(s) assert(s->type == VDM_BOOL && "Value is not a boolean")
#define ASSERT_CHECK_NUMERIC(s) assert((s->type == VDM_INT||s->type == VDM_NAT||s->type == VDM_NAT1||s->type == VDM_REAL||s->type == VDM_RAT) && "Value is not numeric")
#define ASSERT_CHECK_REAL(s) assert((s->type == VDM_REAL) && "Value is not real")
#define ASSERT_CHECK_INT(s) assert((s->type == VDM_INT) && "Value is not integer")
#define ASSERT_CHECK_CHAR(s) assert((s->type == VDM_CHAR) && "Value is not a character")
char* printBool(TVP val)
{
ASSERT_CHECK_BOOL(val);
char* str;
if(val->value.boolVal)
{
str = (char*)malloc(5 * sizeof(char));
sprintf(str, "true");
}
else
{
str = (char*)malloc(6 * sizeof(char));
sprintf(str, "false");
}
return str;
}
char* printChar(TVP val)
{
ASSERT_CHECK_CHAR(val);
char* str;
str = (char*)malloc(2 * sizeof(char));
str[0] = val->value.charVal;
str[1] = 0;
return str;
}
char* printInt(TVP val)
{
ASSERT_CHECK_NUMERIC(val);
char* str;
int tmpval = val->value.intVal;
int numdigits;
numdigits = 0;
while(tmpval != 0)
{
numdigits += 1;
tmpval = tmpval / 10;
}
//Allow one extra space for negative numbers.
str = (char*)malloc((numdigits + 2) * sizeof(char));
sprintf(str, "%d", val->value.intVal);
return str;
}
char* printDouble(TVP val)
{
ASSERT_CHECK_NUMERIC(val);
char* str;
//Rounding behaviour for doubles in the less significant digits
//makes it impossible to count digits using subtraction and multiplication by 10.
str = (char*)malloc(1000 * sizeof(char));
sprintf(str, "%f", val->value.doubleVal);
return str;
}
//TODO: Should change this to printVdmTypedValue
char* printVdmBasicValue(TVP val)
{
char ldelim, rdelim;
char* str;
char* strtmp;
char** strcol;
struct Collection* col;
int i;
int totallen;
//Set up delimiters in case of collections.
switch(val->type)
{
case VDM_SET:
ldelim = '{';
rdelim = '}';
break;
case VDM_SEQ:
ldelim = '[';
rdelim = ']';
break;
default:
break;
}
//Main operation.
switch(val->type)
{
case VDM_BOOL:
str = printBool(val);
break;
case VDM_CHAR:
str = printChar(val);
break;
case VDM_INT:
case VDM_NAT:
case VDM_NAT1:
str = printInt(val);
break;
case VDM_RAT:
case VDM_REAL:
str = printDouble(val);
break;
case VDM_SET:
case VDM_SEQ:
//Can not use UNWRAP_COLLECTION here because it includes a declaration.
col = (struct Collection*)val->value.ptr;
strcol = (char**)malloc(col->size * sizeof(char*));
totallen = 0;
//Get pretty printed representations of contents recursively.
for(i = 0; i < col->size; i++)
{
strcol[i] = printVdmBasicValue((col->value)[i]);
totallen += strlen(strcol[i]);
}
//Compose full string.
str = (char*)malloc((2 + 1 + col->size * 2 + totallen));
strtmp = str;
sprintf(str, "%c", ldelim);
str += sizeof(char);
for(i = 0; i < col->size - 1; i++)
{
sprintf(str, "%s, ", strcol[i]);
str += (strlen(strcol[i]) + 2) * sizeof(char);
}
sprintf(str, "%s%c", strcol[i], rdelim);
str = strtmp;
//Clean up.
for(i = 0; i < col->size; i++)
{
free(strcol[i]);
}
free(strcol);
break;
default:
//Must return a valid pointer.
str = (char*)malloc(1);
str[0] = 0;
break;
}
return str;
}