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/* Copyright 1998 by Andi Kleen. Subject to the GPL. */

/* $Id: nstrcmp.c,v 1.1 2002-03-17 19:58:53 simons Exp $ */

#include <ctype.h>

#include <stdlib.h>

#include "util.h"

/* like strcmp(), but knows about numbers */

int nstrcmp(const char *astr, const char *b)

{

    const char *a = astr;

    while (*a == *b) {

        if (*a == '\0')

            return 0;

        a++;

        b++;

    }

    if (isdigit(*a)) {

        if (!isdigit(*b))

            return -1;

        while (a > astr) {

            a--;

            if (!isdigit(*a)) {

                a++;

                break;

            }

            if (!isdigit(*b))

                return -1;

            b--;

        }

        return atoi(a) > atoi(b) ? 1 : -1;

    }

    return *a - *b;

}