[C語言] 讀取簡易的設定檔

原始碼

1. #include <stdio.h> 
2. #include <stdlib.h> 
3. #include <string.h> 
4.  
5. #define CONFIG_PATH "test.conf" 
6. #define SIZE         256 
7.  
8. /*config vars*/ 
9. char path[SIZE]; 
10. char extension[SIZE]; 
11. int limit=0; 
12.  
13. bool readConfig(){ 
14.    char name[SIZE]; 
15.    char value[SIZE]; 
16.  
17.    FILE *fp = fopen(CONFIG_PATH, "r"); 
18.    if (fp == NULL) { return false; } 
19.    while(!feof(fp)){ 
20.        memset(name,0,SIZE); memset(value,0,SIZE); 
21.  
22.        /*Read Data*/ 
23.        fscanf(fp,"%s = %s\n", name, value); 
24.  
25.        if (!strcmp(name, "path")){ 
26.            strcpy(path, value); 
27.  
28.        }else if (!strcmp(name, "extension")){ 
29.            strcpy(extension, value); 
30.  
31.        }else if (!strcmp(name, "limit")){ 
32.            limit = atoi(value); 
33.        } 
34.    } 
35.    fclose(fp); 
36.  
37.    return true; 
38. } 
39.  
40.  
41. /*= main function=*/ 
42. int main(int argc, const char ** argv){ 
43.    memset(path,0,SIZE); 
44.    memset(extension,0,SIZE); 
45.  
46.    /*read config*/ 
47.    if(!readConfig()){ 
48.        fprintf(stderr,"read config fail!"); 
49.        return 1; 
50.    } 
51.  
52.    printf("path = %s\n", path); 
53.    printf("extension = %s\n", extension); 
54.    printf("limit = %d\n", limit); 
55.    return 0; 
56. } 

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define CONFIG_PATH "test.conf"
#define SIZE         256

/*config vars*/
char path[SIZE];
char extension[SIZE];
int limit=0;

bool readConfig(){
    char name[SIZE];
    char value[SIZE];

    FILE *fp = fopen(CONFIG_PATH, "r");
    if (fp == NULL) { return false; }
    while(!feof(fp)){
        memset(name,0,SIZE); memset(value,0,SIZE);

        /*Read Data*/
        fscanf(fp,"%s = %s\n", name, value);

        if (!strcmp(name, "path")){
            strcpy(path, value);

        }else if (!strcmp(name, "extension")){
            strcpy(extension, value);

        }else if (!strcmp(name, "limit")){
            limit = atoi(value);
        }
    }
    fclose(fp);

    return true;
}


/*= main function=*/
int main(int argc, const char ** argv){
    memset(path,0,SIZE);
    memset(extension,0,SIZE);

    /*read config*/
    if(!readConfig()){
        fprintf(stderr,"read config fail!");
        return 1;
    }

    printf("path = %s\n", path);
    printf("extension = %s\n", extension);
    printf("limit = %d\n", limit);
    return 0;
}

test.conf

原始碼

1. path = /tmp 
2. extension = jpg,jpeg,png 
3. limit = 10000 

path = /tmp
extension = jpg,jpeg,png
limit = 10000