[physfs] descent and physfs

[Bradley Bell]

I just realized, with some slight alteration, this becomes a "caseify" function:
 pass it a filename, and it converts it to the actual file as found in the
filesystem...

Quoting Bradley Bell <btb at icculus.org>:
> this is pseudocode!:
> platformExists(char *filename)
> {
>     if (stat(filename) != -1)
>         return 1;
> 
>     if (platformIgnoreCase)
>     {
>         char *d;
>         char path[PATH_MAX] = "/";
>         LinkedStringList *list, *p;
> 
>         for (d = firstdirinfilename(filename); d != NULL; d =
> nextdirinfilename(filename))
>         {
>             if (stat(d) != -1)
>             {
>                 strcat(path, d);
>                 continue;
>             }
>             list = enumeratefiles(path);
>             p = findinlistinsensitive(list, d);
>             if (p)
>             {
>                 strcat(path, p->str);
>                 strcat(path, "/");
>             }
>             else
>                 return 0;
>         }
>         strcpy(filename, path);
>         strcat(filename, "/");
>         strcat(filename, basename(filename));
>         if (stat(filename) != -1)
>             return 1;
>         list = enumeratefiles(filename);
>         p = findinlistinsensitive(list, d);
>         if (p)
>             return 1;
>     }
>     return 0;
> }