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author | Siep Kroonenberg <siepo@cybercomm.nl> | 2011-02-17 16:52:23 +0000 |
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committer | Siep Kroonenberg <siepo@cybercomm.nl> | 2011-02-17 16:52:23 +0000 |
commit | 8da2d23733595367fad869e5fbc6c9a87041879b (patch) | |
tree | 0f3719f4eea97f872b6347c6d9ff5aa2ccd38299 /Master/tlpkg/tlperl/lib/subs.pm | |
parent | 9d55a4cf517a832c74e85179eac4239f9be8d2e7 (diff) |
New tlperl part VIII
git-svn-id: svn://tug.org/texlive/trunk@21430 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/tlpkg/tlperl/lib/subs.pm')
-rw-r--r-- | Master/tlpkg/tlperl/lib/subs.pm | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/subs.pm b/Master/tlpkg/tlperl/lib/subs.pm new file mode 100644 index 00000000000..e5a9aa8827d --- /dev/null +++ b/Master/tlpkg/tlperl/lib/subs.pm @@ -0,0 +1,40 @@ +package subs; + +our $VERSION = '1.00'; + +=head1 NAME + +subs - Perl pragma to predeclare sub names + +=head1 SYNOPSIS + + use subs qw(frob); + frob 3..10; + +=head1 DESCRIPTION + +This will predeclare all the subroutine whose names are +in the list, allowing you to use them without parentheses +even before they're declared. + +Unlike pragmas that affect the C<$^H> hints variable, the C<use vars> and +C<use subs> declarations are not BLOCK-scoped. They are thus effective +for the entire file in which they appear. You may not rescind such +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 $sym (@imports) { + *{"${callpack}::$sym"} = \&{"${callpack}::$sym"}; + } +}; + +1; |