datadictionary

type Component struct {
	Name   string
	Fields []*FieldDef
}

type DataDictionary struct {
	FIXType         string
	Major           int
	Minor           int
	ServicePack     int
	FieldTypeByTag  map[int]*FieldType
	FieldTypeByName map[string]*FieldType
	Messages        map[string]*MessageDef
	Components      map[string]*Component
	Header          *MessageDef
	Trailer         *MessageDef
}

type Enum struct {
	Value       string
	Description string
}

type FieldDef struct {
	*FieldType
	Component   *Component
	Required    bool
	ChildFields []*FieldDef
}

type FieldType struct {
	Name  string
	Tag   int
	Type  string
	Enums map[string]Enum
}

type MessageDef struct {
	Name                     string
	MsgType                  string
	Fields                   map[int]*FieldDef
	FieldsInDeclarationOrder []*FieldDef

	RequiredTags TagSet
	Tags         TagSet
}

type TagSet map[int]struct{}

type XMLComponent struct {
	Name    string `xml:"name,attr"`
	MsgCat  string `xml:"msgcat,attr"`
	MsgType string `xml:"msgtype,attr"`

	Members []*XMLComponentMember `xml:",any"`
}

type XMLComponentMember struct {
	XMLName  xml.Name
	Name     string `xml:"name,attr"`
	Required string `xml:"required,attr"`

	Members []*XMLComponentMember `xml:",any"`
}

type XMLDoc struct {
	Type        string `xml:"type,attr"`
	Major       int    `xml:"major,attr"`
	Minor       int    `xml:"minor,attr"`
	ServicePack int    `xml:"servicepack,attr"`

	Header     *XMLComponent   `xml:"header"`
	Trailer    *XMLComponent   `xml:"trailer"`
	Messages   []*XMLComponent `xml:"messages>message"`
	Components []*XMLComponent `xml:"components>component"`
	Fields     []*XMLField     `xml:"fields>field"`
}

type XMLField struct {
	Number int         `xml:"number,attr"`
	Name   string      `xml:"name,attr"`
	Type   string      `xml:"type,attr"`
	Values []*XMLValue `xml:"value"`
}

type XMLValue struct {
	Enum        string `xml:"enum,attr"`
	Description string `xml:"description,attr"`
}