My fscanf

.gitinore

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+*.o
+/calc

cal.c

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+#include <stdio.h> 
+#include <string.h> 
+#include "my_fscanf.h" 
+
+int main() {
+	FILE* fp = fopen("points.txt", "r");     
+	char type[10];     
+	double x, y;     
+	int line;
+	int i;
+	if (fp != NULL) 
+	{ 
+		my_fscanf(fp, "%d\r\n", &line);         
+		for (i = 0; i < line; i++) { 
+			my_fscanf(fp, "%s (%f,%f)\r\n", type, &x, &y); 
+			if (strcmp(type, "point") == 0) 
+			{
+				printf("X: %f:, Y: %f\r\n", x, y); 
+			} 
+		} 
+	}
+	return 0;
+}

my_fscanf.c

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+#include "my_fscanf.h"
+#include <ctype.h>
+#include <stdarg.h> 
+#include <stdlib.h> 
+#include <string.h> 
+
+void my_fscanf(FILE *fp, const char* format, ...) {
+
+	va_list list;
+	va_start(list, format);
+	int c;
+	void* pVal;
+
+	while (*format) {
+		if (*format == '%') {
+			format++;
+			switch (*format) {
+			case 'd':
+				c = getc(fp);
+				pVal = va_arg(list, int*);
+				*(int*)pVal = 0;
+				while (isdigit(c))
+				{
+					*(int*)pVal = *(int*)pVal * 10 + (c - '0');
+					c = getc(fp);
+				}
+				ungetc(c, fp);
+				break;
+			case 'c':
+				pVal = va_arg(list, char*);
+				c = getc(fp);
+				*(char*)pVal = c;
+				break;
+			case 's':
+				pVal = va_arg(list, char*);
+				((char*)pVal)[0] = 0;
+				c = getc(fp);
+				while (!isspace(c))
+				{
+					strncat((char*)pVal, &c , 1);
+					c = getc(fp);
+				}
+				ungetc(c, fp);
+				break;
+			case 'f':{
+					pVal = va_arg(list, float*);
+					c = getc(fp);
+					*(double*)pVal = 0;
+					while (!isspace(c))
+					{
+						if (c == '.')
+						{
+							c = getc(fp);
+							break;
+						}
+						*(double*)pVal = *(double*)pVal * 10 + (c - '0');
+						c = getc(fp);
+					}
+					int n = 1;
+					while (!isspace(c) && isdigit(c))
+					{
+						*(double*)pVal = *(double*)pVal  + (c - '0') *0.1 *n;
+						c = getc(fp);
+						n++;
+					}
+					ungetc(c, fp);
+					break; 
+				}
+			}
+
+		}
+		else
+			c = getc(fp);
+		format++;
+	}
+
+	va_end(list);
+
+}

my_fscanf.h

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+#pragma once
+#ifndef MY_FSCANF_H
+#define MY_FSCANF_H
+#include <stdio.h>
+void my_fscanf(FILE *fp, const char *format, ...);
+#endif

points.txt

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+4
+point (1.3,2.2)
+point (2.5,3.0)
+point (3.2,4.4)
+point (1.0,5.9)
+