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Postings from April 2003
a = arcadi shehter <fearcadi@figaro.weizmann.ac.il>
a>I think this was already discussed once and then it was proposed to
a>attach a property to characters of the string
a>
a> sub peek_at_sky {
a>
a> my Color @numbers = peek_with_some_hardware;
a>
a> my $say_it = join map { "1" but color($_) } @numbers ;
a> return $say_it ;
a> }
a>
a>
a> rule color { (.) { let $0 := $1.color } }
a>
a> $daylight = &peek_at_sky =~ /<color>+/; # is something in sky
That works and isn't too bad, a quick fix with some interesting
possibilities. Should be an example in the documentation. Still,
the RFC that opened this discussion opens a different way-
http://dev.perl.org/rfc/93.html
http://www.perl.com/pub/a/2002/06/04/apo5.html?page=17#rfc%20093:%20regex:%20support%20for%20incremental%20pattern%20matching
Once a user-defined sub can hand characters to rexen- it could hand
anything over (floats, refs, etcetera). It's an opportunity ripe
for exploitation.
-y
~~~~~
The Moon is Waxing Crescent (4% of Full)
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