| File: | t/lib/Tie/Input/Insertable.pm |
| Coverage: | 43.3% |
| line | stmt | bran | cond | sub | pod | time | code |
|---|---|---|---|---|---|---|---|
| 1 | # Excellent snippet of code proferred by (Archbishop) "tilly" in response | ||||||
| 2 | # to someone asking how to provide fake input on STDIN. | ||||||
| 3 | |||||||
| 4 | package Tie::Input::Insertable; | ||||||
| 5 | |||||||
| 6 | sub PRINT | ||||||
| 7 | { | ||||||
| 8 | 1 | 1 | my $self = shift; | ||||
| 9 | 1 | 8 | $self->{buffer} = join '', @_, $self->{buffer}; | ||||
| 10 | } | ||||||
| 11 | |||||||
| 12 | sub TIEHANDLE | ||||||
| 13 | { | ||||||
| 14 | 1 | 4 | my ( $class, $fh ) = @_; | ||||
| 15 | 1 | 6 | bless { fh => $fh, buffer => "" }, $class; | ||||
| 16 | } | ||||||
| 17 | |||||||
| 18 | sub READLINE | ||||||
| 19 | { | ||||||
| 20 | 1 | 1 | my $self = shift; | ||||
| 21 | 1 | 4 | return undef if $self->{eof}; | ||||
| 22 | 1 | 5 | while ( -1 == index( $self->{buffer}, $/ ) ) { | ||||
| 23 | 0 | 0 | my $fh = $self->{fh}; | ||||
| 24 | 0 | 0 | my $data = <$fh>; | ||||
| 25 | 0 | 0 | if ( length( $data ) ) { | ||||
| 26 | 0 | 0 | $self->{buffer} .= $data; | ||||
| 27 | } | ||||||
| 28 | else { | ||||||
| 29 | 0 | 0 | $self->{eof} = 1; | ||||
| 30 | 0 | 0 | return delete $self->{buffer}; | ||||
| 31 | } | ||||||
| 32 | } | ||||||
| 33 | 1 | 2 | my $pos = index( $self->{buffer}, $/ ) + length( $/ ); | ||||
| 34 | 1 | 4 | return substr( $self->{buffer}, 0, $pos, "" ); | ||||
| 35 | } | ||||||
| 36 | |||||||
| 37 | sub EOF | ||||||
| 38 | { | ||||||
| 39 | 0 | my $self = shift; | |||||
| 40 | 0 | $self->{eof} ||= not length( $self->{buffer} ) or $self->{fh}->eof(); | |||||
| 41 | } | ||||||
| 42 | |||||||
| 43 | #tie *FAKEIN, 'Tie::Input::Insertable', *STDIN; | ||||||
| 44 | # | ||||||
| 45 | #while (<FAKEIN>) { | ||||||
| 46 | # print FAKEIN "Hello, world\n" if /foo/; | ||||||
| 47 | # print $_; | ||||||
| 48 | #} | ||||||
| 49 | |||||||
| 50 | 1; | ||||||