diff options
author | Norbert Preining <preining@logic.at> | 2010-05-12 16:54:37 +0000 |
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committer | Norbert Preining <preining@logic.at> | 2010-05-12 16:54:37 +0000 |
commit | 661c41a09e39a182865e0b51e34cc995a0dc96e8 (patch) | |
tree | 2f79bb1406e22fdcb2587be8ffda6c0c609d7932 /Master/tlpkg/tlperl/lib/IO/Uncompress/Adapter/Inflate.pm | |
parent | b645030efc22e13c2498a1522083634ab91b2de1 (diff) |
move tlperl.straw to tlperl
git-svn-id: svn://tug.org/texlive/trunk@18210 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Master/tlpkg/tlperl/lib/IO/Uncompress/Adapter/Inflate.pm')
-rwxr-xr-x | Master/tlpkg/tlperl/lib/IO/Uncompress/Adapter/Inflate.pm | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/Master/tlpkg/tlperl/lib/IO/Uncompress/Adapter/Inflate.pm b/Master/tlpkg/tlperl/lib/IO/Uncompress/Adapter/Inflate.pm new file mode 100755 index 00000000000..aac1e413ffe --- /dev/null +++ b/Master/tlpkg/tlperl/lib/IO/Uncompress/Adapter/Inflate.pm @@ -0,0 +1,158 @@ +package IO::Uncompress::Adapter::Inflate; + +use strict; +use warnings; +use bytes; + +use IO::Compress::Base::Common 2.024 qw(:Status); +use Compress::Raw::Zlib 2.024 qw(Z_OK Z_BUF_ERROR Z_STREAM_END Z_FINISH MAX_WBITS); + +our ($VERSION); +$VERSION = '2.024'; + + + +sub mkUncompObject +{ + my $crc32 = shift || 1; + my $adler32 = shift || 1; + my $scan = shift || 0; + + my $inflate ; + my $status ; + + if ($scan) + { + ($inflate, $status) = new Compress::Raw::Zlib::InflateScan + #LimitOutput => 1, + CRC32 => $crc32, + ADLER32 => $adler32, + WindowBits => - MAX_WBITS ; + } + else + { + ($inflate, $status) = new Compress::Raw::Zlib::Inflate + AppendOutput => 1, + LimitOutput => 1, + CRC32 => $crc32, + ADLER32 => $adler32, + WindowBits => - MAX_WBITS ; + } + + return (undef, "Could not create Inflation object: $status", $status) + if $status != Z_OK ; + + return bless {'Inf' => $inflate, + 'CompSize' => 0, + 'UnCompSize' => 0, + 'Error' => '', + 'ConsumesInput' => 1, + } ; + +} + +sub uncompr +{ + my $self = shift ; + my $from = shift ; + my $to = shift ; + my $eof = shift ; + + my $inf = $self->{Inf}; + + my $status = $inf->inflate($from, $to, $eof); + $self->{ErrorNo} = $status; + + if ($status != Z_OK && $status != Z_STREAM_END && $status != Z_BUF_ERROR) + { + $self->{Error} = "Inflation Error: $status"; + return STATUS_ERROR; + } + + return STATUS_OK if $status == Z_BUF_ERROR ; # ??? + return STATUS_OK if $status == Z_OK ; + return STATUS_ENDSTREAM if $status == Z_STREAM_END ; + return STATUS_ERROR ; +} + +sub reset +{ + my $self = shift ; + $self->{Inf}->inflateReset(); + + return STATUS_OK ; +} + +#sub count +#{ +# my $self = shift ; +# $self->{Inf}->inflateCount(); +#} + +sub crc32 +{ + my $self = shift ; + $self->{Inf}->crc32(); +} + +sub compressedBytes +{ + my $self = shift ; + $self->{Inf}->compressedBytes(); +} + +sub uncompressedBytes +{ + my $self = shift ; + $self->{Inf}->uncompressedBytes(); +} + +sub adler32 +{ + my $self = shift ; + $self->{Inf}->adler32(); +} + +sub sync +{ + my $self = shift ; + ( $self->{Inf}->inflateSync(@_) == Z_OK) + ? STATUS_OK + : STATUS_ERROR ; +} + + +sub getLastBlockOffset +{ + my $self = shift ; + $self->{Inf}->getLastBlockOffset(); +} + +sub getEndOffset +{ + my $self = shift ; + $self->{Inf}->getEndOffset(); +} + +sub resetLastBlockByte +{ + my $self = shift ; + $self->{Inf}->resetLastBlockByte(@_); +} + +sub createDeflateStream +{ + my $self = shift ; + my $deflate = $self->{Inf}->createDeflateStream(@_); + return bless {'Def' => $deflate, + 'CompSize' => 0, + 'UnCompSize' => 0, + 'Error' => '', + }, 'IO::Compress::Adapter::Deflate'; +} + +1; + + +__END__ + |