**      path        Path name for HTTP or HTTPS.
**      user        Userid.
**      passwd      Password.
**      hostname    HOST:PORT or just HOST if port is the default.
**      canonical   The URL in canonical form, omitting the password
**
** If URL_USECONFIG is set and zUrl is NULL or "default", then parse the
** URL stored in last-sync-url and last-sync-pw of the CONFIG table.  Or if 
** URL_USE_PARENT is also set, then use parent-project-url and
** parent-project-pw from the CONFIG table instead of last-sync-url
** and last-sync-pw.
**
** If URL_USE_CONFIG is set and zUrl is a symbolic name, then look up
** the URL in sync-url:%Q and sync-pw:%Q elements of the CONFIG table where
** %Q is the symbolic name.

    free(zFile);
    zFile = 0;
    pUrlData->protocol = "file";
    pUrlData->path = mprintf("");
    pUrlData->name = mprintf("%b", &cfile);
    pUrlData->canonical = mprintf("file://%T", pUrlData->name);
    blob_reset(&cfile);
  }else if( pUrlData->user!=0 && pUrlData->passwd==0 
         && (urlFlags & URL_PROMPT_PW)!=0 ){
    url_prompt_for_password_local(pUrlData);
  }else if( pUrlData->user!=0 && ( urlFlags & URL_ASK_REMEMBER_PW ) ){
    if( isatty(fileno(stdin)) && ( urlFlags & URL_REMEMBER_PW )==0 ){
      if( save_password_prompt(pUrlData->passwd) ){
        pUrlData->flags = urlFlags |= URL_REMEMBER_PW;
      }else{

** Given a URL for a remote repository clone point, try to come up with a
** reasonable basename of a local clone of that repository.
**
**    *  If the URL has a path, use the tail of the path, with any suffix
**       elided.
**
**    *  If the URL is just a domain name, without a path, then use the
**       first element of the domain name, except skip over "www." if 
**       present and if there is a ".com" or ".org" or similar suffix.
**
** The string returned is obtained from fossil_malloc().  NULL might be
** returned if there is an error.
*/
char *url_to_repo_basename(const char *zUrl){
  const char *zTail = 0;