CODEWITHSUNDEEP
c
wick
wick

Reputation: 2224

Parsing a .conf file with single function call in c

is there an elegant way of parsing .conf file in a c program? say, if i have normal text file -

param1 = 22
param2 = 99
param34 = 11
param11 = 15
...

it'd be nice to get access in one function call, smth like:

int c = xfunction(my.conf, param34);

and now c = 11. Many thanks in advance.

Upvotes: 0

Views: 179

Answers (2)

BLUEPIXY
BLUEPIXY

Reputation: 40145

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

#define xfunction(file, param) \
        system("awk '/^" #param " = [0-9]+$/{ num = $3 };END { exit num }' " #file)

int main(void){
    int c = xfunction(my.conf, param34);
    printf("%d\n", c);
    return 0;
}

Upvotes: 2

pradipta
pradipta

Reputation: 1746

It is better if you use a linked list as follow

struct node
{
  char *key;
  int value;
};

and assign all the key value pair to node and you can add as many node during parsing of conf file to the linked list.

later when you search you can simply traverse the linked list and check for the key by a simple strcmp() and get the value.

Upvotes: 0

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