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#include "userinput.h"
#include "fakeinput.h"
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <stdbool.h>
#include <limits.h>
#include <float.h>
char **fakeInput = NULL;
#define LD(name)\
long double name##ldvalue;\
long double *name##ld = NULL;\
if (name != NULL) {\
name##ldvalue = *name;\
name##ld = &name##ldvalue;\
}
void printText(char *text) {
if (fakeInput == NULL) {
printf("%s", text);
fflush(stdout);
}
}
void printlf(long double value) {
if (fakeInput != NULL) {
return;
}
if (roundl(value) == value) {
printf("%.0Lf", value);
}
else {
printf("%Lf", value);
}
}
void trimLeft(char *input) {
size_t length = strlen(input);
int firstIndex = 0;
while (firstIndex < length && isspace(input[firstIndex])) {
firstIndex++;
}
for (int i = 0; i <= length - firstIndex; i++) {
input[i] = input[firstIndex + i];
}
}
void trimRight(char *input) {
size_t length = strlen(input);
int index = length - 1;
while (index >= 0 && isspace(input[index])) {
input[index] = '\0';
index--;
}
}
void trim(char *input) {
trimLeft(input);
trimRight(input);
}
char *readInput() {
if (fakeInput != NULL) {
if (fakeInput[0] == NULL) {
printText("The given list of inputs in the test was exceeded!\n");
exit(1);
}
char *result = malloc(strlen(fakeInput[0])*sizeof(char) + 1);
strcpy(result, fakeInput[0]);
fakeInput = fakeInput + 1;
return result;
}
size_t bufferSize = 100;
char *buffer = malloc(bufferSize*sizeof(char));
char c;
int index = 0;
do {
c = fgetc(stdin);
if (!(bufferSize > index)) {
char *newBuffer = malloc(2*bufferSize*sizeof(char));
for (int i = 0; i < bufferSize; i++) {
newBuffer[i] = buffer[i];
}
bufferSize *= 2;
}
buffer[index] = c;
index++;
}
while(c != '\n' && c != EOF);
buffer[index - 1] = '\0';
trim(buffer);
return buffer;
}
char *gets(char *message, unsigned long *minLength, unsigned long *maxLength) {
printText(message);
char *result = readInput();
while (minLength != NULL && strlen(result) < *minLength || maxLength != NULL && strlen(result) > *maxLength) {
printText("Ungueltige Eingabe! ");
if (minLength != NULL && maxLength == NULL) {
printText("Die Eingabe muss mind. ");
printlf(*minLength);
printText(" Zeichen lang sein.\n");
}
else if (maxLength != NULL && minLength == NULL) {
printText("Die Eingabe darf maximal ");
printlf(*maxLength);
printText(" Zeichen lang sein.\n");
}
else {
printText("Die Eingabe muss ");
printlf(*minLength);
printText(" bis ");
printlf(*maxLength);
printText(" Zeichen lang sein.\n");
}
printText(message);
result = readInput();
}
return result;
}
long double getNumber(char *message, long double *min, long double *max, long double *greaterThan, long double *smallerThan, long double leftBorder, long double rightBorder) {
while (true) {
char *input = gets(message, NULL, NULL);
if (strlen(input) == 0) {
printText("Fehlende Eingabe!\n");
free(input);
continue;
}
char *endptr;
long double number = strtold(input, &endptr);
if (strlen(endptr) > 0) {
printText("Ungueltige Eingabe! Gib eine gueltige Zahl ein.\n");
free(input);
continue;
}
free(input);
bool isValid = true;
if (min != NULL && number < *min) {
isValid = false;
}
if (max != NULL && number > *max) {
isValid = false;
}
if (greaterThan != NULL && !(number > *greaterThan)) {
isValid = false;
}
if (smallerThan != NULL && !(number < *smallerThan)) {
isValid = false;
}
if (number < leftBorder) {
isValid = false;
}
if (number > rightBorder) {
isValid = false;
}
if (isValid) {
return number;
}
printText("Ungueltige Eingabe! Fuer die eingegebene Zahl muss gelten:");
if (min != NULL) {
printText(" >=");
printlf(*min);
}
if (max != NULL) {
printText(" <=");
printlf(*max);
}
if (greaterThan != NULL) {
printText(" >");
printlf(*greaterThan);
}
if (smallerThan != NULL) {
printText(" <");
printlf(*smallerThan);
}
if (min == NULL && greaterThan == NULL) {
printText(" >=");
printlf(leftBorder);
}
if (max == NULL && smallerThan == NULL) {
printText(" <=");
printlf(rightBorder);
}
printText("\n");
}
}
short gethd(char *message, short *min, short *max) {
LD(min)
LD(max)
return getNumber(message, minld, maxld, NULL, NULL, SHRT_MIN, SHRT_MAX);
}
int getd(char *message, int *min, int *max) {
LD(min)
LD(max)
return getNumber(message, minld, maxld, NULL, NULL, INT_MIN, INT_MAX);
}
long getld(char *message, long *min, long *max) {
LD(min)
LD(max)
return getNumber(message, minld, maxld, NULL, NULL, LONG_MIN, LONG_MAX);
}
long long getlld(char *message, long long *min, long long *max) {
LD(min)
LD(max)
return getNumber(message, minld, maxld, NULL, NULL, LLONG_MIN, LLONG_MAX);
}
unsigned short gethu(char *message, unsigned short *min, unsigned short *max) {
LD(min)
LD(max)
return getNumber(message, minld, maxld, NULL, NULL, 0, USHRT_MAX);
}
unsigned int getu(char *message, unsigned int *min, unsigned int *max) {
LD(min)
LD(max)
return getNumber(message, minld, maxld, NULL, NULL, 0, UINT_MAX);
}
unsigned long getlu(char *message, unsigned long *min, unsigned long *max) {
LD(min)
LD(max)
return getNumber(message, minld, maxld, NULL, NULL, 0, ULONG_MAX);
}
unsigned long long getllu(char *message, unsigned long long *min, unsigned long long *max) {
LD(min)
LD(max)
return getNumber(message, minld, maxld, NULL, NULL, 0, ULLONG_MAX);
}
double getlf(char *message, double *min, double *max, double *greaterThan, double *smallerThan) {
LD(min)
LD(max)
LD(greaterThan)
LD(smallerThan)
return getNumber(message, minld, maxld, greaterThanld, smallerThanld, -DBL_MAX, DBL_MAX);
}