[Raku PDF Project] / [PDF-Native Module] / PDF::Native :: COS

Synopsis

use PDF::Native::COS;

my $stream = q:to<--END-->;
    << /Length 45 >> stream
    BT
    /F1 24 Tf
    100 250 Td (Hello, world!) Tj
    ET
    endstream
    --END--

my COSIndObj $ind-obj .= parse: "123 4 obj\n{$stream}endobj";
say $ind-obj.write;    # serialize to PDF
say $ind-obj.ast.raku; # mimic PDF::Grammar::COS.parse( $_ , :rule<ind-obj>);
my COSInt $val .= parse: "42"; # simple object parse
say $ind-obj.value.dict<Length>.cmp($val); # derefencing and comparision

Description

This is under development as a set of objects for the native construction and serialization of COS (PDF) objects.

It utilized by PDF::IO::Reader and PDF::IO::Writer to provide faster reading and writing of larger PDF files.

class PDF::Native::COS::COSNode

Generic COS objects

multi method parse

multi method parse(
    Str:D $str where { ... }
) returns PDF::Native::COS::_Node

Parse a COS object

class PDF::Native::COS::COSRef

Indirect object reference

class PDF::Native::COS::COSCryptCtx

An encryption context

class PDF::Native::COS::COSArray

Array object

class PDF::Native::COS::COSName

Name object

class PDF::Native::COS::COSDict

Dictionary (hash) object

class PDF::Native::COS::COSStream

Stream object

class PDF::Native::COS::COSIndObj

Indirect object

class PDF::Native::COS::COSBool

Boolean object

class PDF::Native::COS::COSInt

Integer object

class PDF::Native::COS::COSReal

Real object

class PDF::Native::COS::COSLiteralString

Literal string object

class PDF::Native::COS::COSHexString

Hex string object

class PDF::Native::COS::COSNull

Null object

class PDF::Native::COS::COSComment

Comment

class PDF::Native::COS::COSOp

Graphics Operation

class PDF::Native::COS::COSInlineImage

Inline graphics image

class PDF::Native::COS::COSContent

Graphics content stream