| 1 | package Psh::Builtins::Delenv; |
| 2 | |
| 3 | require Psh::Support::Env; |
| 4 | require Psh::Util; |
| 5 | |
| 6 | =item * C<delenv NAME [NAME2 NAME3 ...]> |
| 7 | |
| 8 | Deletes the names environment variables. |
| 9 | |
| 10 | =cut |
| 11 | |
| 12 | sub bi_delenv |
| 13 | { |
| 14 | my @args= split(' ',$_[0]); |
| 15 | if( !@args) { |
| 16 | Psh::Util::print_error_i18n('usage_delenv'); |
| 17 | return (0,undef); |
| 18 | } |
| 19 | foreach my $var ( @args) { |
| 20 | my @result = Psh::PerlEval::protected_eval("tied(\$$var)"); |
| 21 | my $oldtie = $result[0]; |
| 22 | if (defined($oldtie)) { |
| 23 | Psh::PerlEval::protected_eval("untie(\$$var)"); |
| 24 | } |
| 25 | my $oldval= $ENV{$var}; |
| 26 | delete($ENV{$var}); |
| 27 | return (1,$oldval); |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | 1; |