Prototyping an HTTP content negotiation function for super magic fun time!

negotiate-test.c

#include <assert.h>
#include <stdio.h>
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include <string.h>

/**
 * @link https://developer.mozilla.org/en-US/docs/HTTP/Content_negotiation
 */
int main()
{
    const char *accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";

    /**
     * @see https://tools.ietf.org/html/rfc2616#section-14.1
     */
    struct accept_vector {
        char *str;
        ptrdiff_t pdiff;
        float qvalue;
    };

    // Unsigned char 0 - 255 (256 size)

    //printf("%.1f\n", x);

    struct accept_vector vect;
    vect.str = (char*)accept;
    //char *buffer = {0};
    //buffer = vect.str;
    char *buffer;
    //buffer = vect.str;

    // ---
    for (buffer = vect.str; *(vect.str++); buffer = vect.str) {
        puts(buffer);
    }
    // ---

    //do {
    //    puts(vect.str);
    //} while (*vect.str++);

    //puts(buffer);


    for (unsigned int i = 0, length = strlen(accept); i <= length; ++i) {

        //char *sub_accept = (char*)accept;

        if (accept[i] == ';') {

            //vect.end = i - 1;

            /**
             * Returns the first match after the semicolon is found (via the `+ (i + 1)` method)
             * e.g. the pointer index incremented plus one
             */
            // Example from our `accept` string.
            // Found: q=0.9,*/*;q=0.8
            //printf("Found: %s\n", (const char*)accept + (i + 1));

            //printf("Direction vector: %d - %d\nString: ", vect.start, vect.end);

            //for (unsigned int x = vect.start; x <= vect.end; ++x) {
                //printf("%c!!!\n", sub_accept[x]);
            //}

            //printf("\n");

            //sub_accept[vect.end + 1] = '\0';

            //printf("%s\n", sub_accept);
        }
    }
}