>Parseable::new, pckg= 'main{}'
 >URL::Fetchable::new       ## >=entering function...
  >URL::Cacheable::new
   >URL::new, pkg='main'
   (SET) storage_path="cache"
   storage_path=cache
   <URL::new                 #finally starts to exit...
   host_mask="(?-ims:([a-z...",   ##In Cachble:new..prints 
   charset="UTF-8",               ##parms being init'ed
                             ## this next one is the prob:
(code):	P "pkg_host_mask=%s", $pkg_host_mask;

(output):
pkg_host_mask=(?-ims:([a-zA-Z][-a-zA-Z0-9]*\.[a-zA-Z]+)$)

(code): 
$pkg_host_base = ($p->host =~ m{($pkg_host_mask)}) [0];

(output (death):
Use of uninitialized value $URL::Cacheable::pkg_host_mask in regexp compilation at ./crawl.pl line 385.
 at ./crawl.pl line 385.

           ### I print it out on the line before and it
has the value shown -- a nice "regex"... then the next
line a crash claiming it wasn't set??  HOW?  FWIW, I
also have printed out 'host' and it is it's expected
sitename value.

Rest of error is just unwinding the call stack which
pretty much mirrors the ">" entrylines above.
        URL::Cacheable::host_base('main=HASH(0x1be4338)') called at ./crawl.pl line 397
        URL::Cacheable::host_path('main=HASH(0x1be4338)') called at ./crawl.pl line 407
        URL::Cacheable::save_path('main=HASH(0x1be4338)') called at ./crawl.pl line 440
        URL::Cacheable::localized_link('main=HASH(0x1be4338)') called at ./crawl.pl line 490
        URL::Cacheable::new_URL_Cacheable('main=HASH(0x1be4338)', 'HASH(0x1be7b30)') called at ./crawl.pl line 666
        URL::Fetchable::new_URL_Fetchable('main=HASH(0x1be4338)', 'HASH(0x1be7b30)') called at ./crawl.pl line 1235
        Parseable::new_Parseable('main=HASH(0x1be4338)', 'HASH(0x1be7b30)') called at ./crawl.pl line 1389