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authorNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
committerNorbert Preining <norbert@preining.info>2019-09-02 13:46:59 +0900
commite0c6872cf40896c7be36b11dcc744620f10adf1d (patch)
tree60335e10d2f4354b0674ec22d7b53f0f8abee672 /systems/texlive/tlnet/tlpkg/tlperl/lib/subs.pm
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+package subs;
+
+our $VERSION = '1.03';
+
+=head1 NAME
+
+subs - Perl pragma to predeclare subroutine names
+
+=head1 SYNOPSIS
+
+ use subs qw(frob);
+ frob 3..10;
+
+=head1 DESCRIPTION
+
+This will predeclare all the subroutines whose names are
+in the list, allowing you to use them without parentheses (as list operators)
+even before they're declared.
+
+Unlike pragmas that affect the C<$^H> hints variable, the C<use vars> and
+C<use subs> declarations are not lexically scoped to the block they appear
+in: they affect
+the entire package in which they appear. It is not possible to rescind these
+declarations with C<no vars> or C<no subs>.
+
+See L<perlmodlib/Pragmatic Modules> and L<strict/strict subs>.
+
+=cut
+
+require 5.000;
+
+sub import {
+ my $callpack = caller;
+ my $pack = shift;
+ my @imports = @_;
+ foreach my $sym (@imports) {
+ *{"${callpack}::$sym"} = \&{"${callpack}::$sym"};
+ }
+};
+
+1;