pdf_parser

type InfoObject struct {
	Title        string
	Author       string
	Creator      string
	CreationDate string
	Producer     string
	ModDate      string
}

type MetaDataRdf struct {
	Title       string
	Description string
	Creator     string
	Date        string
	Isbn        string

	Publishers []string
	Languages  []string
}

type Metadata struct {
	Type          string
	Subtype       string
	Length        int64
	DL            int64
	RawStreamData []byte
	RdfMeta       *MetaDataRdf
}

type ObjectIdentifier struct {
	ObjectNumber     int
	GenerationNumber int
	KeyWord          string
}

type ObjectSubsection struct {
	Id                      int // objectId
	ObjectsCount            int
	FirstSubsectionObjectId int
	LastSubsectionObjectId  int
	Elements                map[int]*ObjectSubsectionElement
}

type ObjectSubsectionElement struct {
	Id               int
	ObjectNumber     int
	GenerationNumber int
	KeyWord          string
}

type PdfInfo struct {
	PdfVersion               string
	OriginalXrefOffset       int64
	OriginalTrailerSection   TrailerSection
	AdditionalTrailerSection []*TrailerSection
	XrefTable                []*XrefTable
	Root                     RootObject
	Info                     InfoObject
	Metadata                 Metadata
	PagesCount               int
}

type RootObject struct {
	Type       string
	Pages      *ObjectIdentifier
	Metadata   *ObjectIdentifier
	PageLabels *ObjectIdentifier
	Lang       string
}

type TrailerSection struct {
	IdRaw string
	Info  ObjectIdentifier
	Root  ObjectIdentifier
	Size  string
	Prev  int64
}

type XrefTable struct {
	Objects           map[int]*ObjectSubsectionElement
	ObjectSubsections map[int]*ObjectSubsection
	SectionStart      int64
}