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pumpit

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This commit is contained in:
Igor Dzuro 2020-04-02 23:34:39 +02:00
parent d9f282243a
commit c513d24ba7
2 changed files with 56 additions and 127 deletions
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du4/program
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du4/program.c
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@ -9,15 +9,11 @@
#define SCAN_SECOND_NUMBER 2 #define SCAN_SECOND_NUMBER 2
#define SCAN_SECOND_OPERATOR 3 #define SCAN_SECOND_OPERATOR 3
#define SCAN_RESULT 4 #define SCAN_RESULT 4
// #define SCAN_END 5
char* scanValue(char *s, float *output); char* scanValue(char *s, float *output);
char* scanOperator(char *s, char *output); char* scanOperator(char *s, char *output);
// bool isDigit(char c);
bool isOperator(char c); bool isOperator(char c);
// bool isFloatingPoint(char c);
// bool isWhitespace(char c);
bool isNewline(char c); bool isNewline(char c);
bool evaluate(float a, float b, float c, char op); bool evaluate(float a, float b, float c, char op);
@ -25,17 +21,16 @@ void error();
int main(){ int main(){
char buffer[2048]; char buffer[2048];
// char str[512]; char *retVal;
while ((retVal = fgets(buffer, sizeof(buffer), stdin)) != 0) {
float a; float a;
float b; float b;
float c; float c;
char operator; char operator;
char *retVal = fgets (buffer, sizeof(buffer), stdin);
if (retVal == 0 || isNewline(buffer[0]) == true) { if (retVal == 0 || isNewline(buffer[0]) == true) {
puts("KONIEC"); // puts("KONIEC");
return 0; return 0;
} }
@ -52,16 +47,6 @@ int main(){
char *currentChar = buffer; char *currentChar = buffer;
char *endChar = buffer + l - 1; char *endChar = buffer + l - 1;
// for (char *i = 0; i < l; i++) {
// // int forward = 0;
// char currentChar = buffer[i];
// if (i == l - 1 && isNewline(currentChar) == false) {
// }
// }
while (currentChar < endChar) { while (currentChar < endChar) {
if (scanStatus == SCAN_FIRST_NUMBER) { if (scanStatus == SCAN_FIRST_NUMBER) {
retVal = scanValue(currentChar, &a); retVal = scanValue(currentChar, &a);
@ -104,6 +89,7 @@ int main(){
currentChar = retVal; currentChar = retVal;
scanStatus++; scanStatus++;
} }
}
return 0; return 0;
} }
@ -118,51 +104,6 @@ char* scanValue(char *s, float *output) {
} }
return retVal; return retVal;
// int outPosition = 0;
// int l = strlen(s);
// bool hasPoint = false;
// for (int i = 0; i < l - 1; i++) {
// char c = s[i];
// char cNext = s[i+1];
// bool isError = (outPosition == 0 && isDigit(c) == false)
// || (outPosition > 0 && (
// (hasPoint == true && isFloatingPoint(c))
// || (hasPoint == false && isFloatingPoint(c) == true && isDigit(cNext) == false)
// || (isDigit(c) == true && (
// (hasPoint == true && isOperator(cNext) == false && isWhitespace(cNext) == false && isNewline(cNext) == false)
// || (hasPoint == false && isOperator(cNext) == false && isWhitespace(cNext) == false && isNewline(cNext) == false && isFloatingPoint(cNext) == false))
// )
// || (hasPoint == true && isDigit(c) == false)
// || (hasPoint == false && isFloatingPoint(c) == false && isDigit(c) == false)
// ));
// if (isError == true) {
// return 0;
// }
// if (isFloatingPoint(c)) {
// hasPoint = true;
// outPosition++;
// continue;
// }
// bool endsHere = isOperator(cNext) == true || isWhitespace(cNext) == true || isNewline(cNext) == true;
// if (endsHere == true) {
// break;
// }
// outPosition++;
// }
// if (outPosition > 0) {
// *output = strtof(s, s + outPosition - 1);
// }
// return outPosition;
} }
char* scanOperator(char *s, char *output) { char* scanOperator(char *s, char *output) {
@ -183,22 +124,10 @@ char* scanOperator(char *s, char *output) {
return start + 1; return start + 1;
} }
// bool isDigit(char c) {
// return c >= '0' && c <= '9';
// }
bool isOperator(char c) { bool isOperator(char c) {
return c == '+' || c == '-' || c == '*' || c == '/' || c == '='; return c == '+' || c == '-' || c == '*' || c == '/' || c == '=';
} }
// bool isFloatingPoint(char c) {
// return c == '.' || c == ',';
// }
// bool isWhitespace(char c) {
// return c == ' ' || c == '\t';
// }
bool isNewline(char c) { bool isNewline(char c) {
return c == '\n'; return c == '\n';
} }