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package Acme::Tie::Formatted; |
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471773
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use strict; |
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207
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use warnings; |
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use Carp; |
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1373
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our $VERSION = '0.06'; |
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my $first_char = qr/[_a-zA-Z]/; |
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my $next_char = qr/[_a-zA-Z0-9]/; |
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my $ok_name = qr/^$first_char($next_char)*$/; |
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our %format; |
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sub import { |
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$DB::single=1; |
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my ($class, $arg) = @_; |
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my $hash_name = "format"; |
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100
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if (defined $arg and $arg =~ /$ok_name/) { |
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$hash_name = $arg; |
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} |
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{ |
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no strict 'refs'; |
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1767
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*{"main::$hash_name"} = \%format; |
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} |
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# Connect the magic to the hash. |
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tie %format, 'Acme::Tie::Formatted'; |
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} |
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sub TIEHASH { |
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my $class = shift; |
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# Someplace to hang our hat. |
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1458
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bless \my($self), $class; |
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} |
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sub FETCH { |
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2388
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my ($self, $key) = @_; |
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100
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return '' unless $key; |
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my @args = split $;, $key, -1; |
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# Return a null string if nothing was passed in. |
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4
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return '' unless @args; |
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4
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my $format = pop @args; |
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# Return a null string if there were no arguments |
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# to be formatted. |
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4
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return '' unless @args; |
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# Format arguments and return. |
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local $_; |
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return join($", map { sprintf($format, $_) } @args); |
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} |
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# Stolen directly from Tie::Comma. |
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# Invalidate all other hash access. |
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7
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33
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use subs qw( |
63
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7
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7
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3732
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STORE EXISTS CLEAR FIRSTKEY NEXTKEY ); |
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7
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200
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64
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*STORE = *EXISTS = *CLEAR = *FIRSTKEY = *NEXTKEY = |
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sub { |
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1
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1
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274
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croak "You can only use %format by accessing it"; |
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}; |
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69
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70
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1; # Magic true value required at end of module |
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72
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__END__ |