qs_example.c

/*  Licensed under the MIT License by Bart Grantham, 2010.  See ./LICENSE or
 *  http://www.opensource.org/licenses/mit-license.php
 */
#include <stdio.h>
#include "qs_parse.h"

#define NUMKVPAIRS 256
#define VALSIZE 256

int main(int argc, char * argv[])
{
    int i;
    char * kvpairs[NUMKVPAIRS];
    char value[VALSIZE];
    char * value_ptr;
    unsigned char r, g, b, a;
    double dr, dg, db, da;

    char getstring[] = "scheme://username:password@domain:port/path?foo=bar&frob&baz=quux&color=09FA#anchor";

    printf("Our GET string is %s\n\n", getstring);

    /********************************************************/
    /*  The easy, but not as efficient way: qs_scanvalue()  */
    /********************************************************/
    if ( qs_scanvalue("foo", getstring, value, sizeof(value)) != NULL )
        printf("Key %s is set, and the value is: \"%s\"\n", "foo", value);
    else
        printf("Key %s is NOT set\n", "foo");

    if ( qs_scanvalue("baz", getstring, value, sizeof(value)) != NULL )
        printf("Key %s is set, and the value is: \"%s\"\n", "baz", value);
    else
        printf("Key %s is NOT set\n", "baz");

    if ( qs_scanvalue("frob", getstring, value, sizeof(value)) != NULL )
        printf("Key %s is set, and the value is: \"%s\"\n", "frob", value);
    else
        printf("Key %s is NOT set\n", "frob");

    if ( qs_scanvalue("blah", getstring, value, sizeof(value)) != NULL )
        printf("Key %s is set, and the value is: \"%s\"\n", "blah", value);
    else
        printf("Key %s is NOT set\n", "blah");

    if ( qs_scanvalue("color", getstring, value, sizeof(value)) != NULL )
    {
        printf("Key %s is set, and the value is: \"%s\"\n", "color", value);
        if ( hex2ccolor(value, &r, &g, &b, &a) != 0 && hex2dcolor(value, &dr, &dg, &db, &da) != 0 )
        {
            printf("    \"%s\" successfully decoded as uchar  : r=%d, g=%d, b=%d, a=%d\n", "color", r, g, b, a);
            printf("    \"%s\" successfully decoded as double : r=%.2f, g=%.2f, b=%.2f, a=%.2f\n", "color", dr, dg, db, da);
        }
        else
            printf("    \"%s\" NOT successfully decoded\n", "color");
    }
    else
        printf("Key %s is NOT set\n", "color");

    printf("\n");


    /*************************************************************************/
    /*  The faster, more complex, and destructive way: qs_parse() / qs_k2v() */
    /*************************************************************************/

    /*  ***THIS WILL ALTER getstring***  */
    i = qs_parse(getstring, kvpairs, 256);
    /*  At this point qs_scanvalue() will no longer work with this query string  */

    if ( (value_ptr = qs_k2v("foo", kvpairs, i)) != NULL )
        printf("Key %s is set, and the value is: \"%s\"\n", "foo", value_ptr);
    else
        printf("Key %s is NOT set\n", "foo");

    if ( (value_ptr = qs_k2v("baz", kvpairs, i)) != NULL )
        printf("Key %s is set, and the value is: \"%s\"\n", "baz", value_ptr);
    else
        printf("Key %s is NOT set\n", "baz");

    if ( (value_ptr = qs_k2v("frob", kvpairs, i)) != NULL )
        printf("Key %s is set, and the value is: \"%s\"\n", "frob", value_ptr);
    else
        printf("Key %s is NOT set\n", "frob");

    if ( (value_ptr = qs_k2v("blah", kvpairs, i)) != NULL )
        printf("Key %s is set, and the value is: \"%s\"\n", "blah", value_ptr);
    else
        printf("Key %s is NOT set\n", "blah");

    if ( (value_ptr = qs_k2v("color", kvpairs, i)) != NULL )
    {
        printf("Key %s is set, and the value is: \"%s\"\n", "color", value_ptr);
        if ( hex2ccolor(value_ptr, &r, &g, &b, &a) != 0 && hex2dcolor(value_ptr, &dr, &dg, &db, &da) != 0 )
        {
            printf("    \"%s\" successfully decoded as uchar  : r=%d, g=%d, b=%d, a=%d\n", "color", r, g, b, a);
            printf("    \"%s\" successfully decoded as double : r=%.2f, g=%.2f, b=%.2f, a=%.2f\n", "color", dr, dg, db, da);
        }
        else
            printf("    \"%s\" NOT successfully decoded\n", "color");
    }
    else
        printf("Key %s is NOT set\n", "color");

    return 0;
}