query

type Filter struct {
	Tag   *TagFilter   `parser:"  @@"`
	Level *LevelFilter `parser:"| @@"`
}

type LevelFilter struct {
	Comp string `parser:"'level' @( ('<' '>') | ('<' '=') | ('>' '=') | '=' | '<' | '>' | ('!' '=') )"`
	Numb string `parser:"@Number"`
}

type NodesInArea struct {
	AreaId  string    `parser:"(@Ident | @('*'))"`
	Filters []*Filter `parser:"('(' @@ (',' @@)* ')')?"`
}

type Query struct {
	Set *Set `parser:"@@"`
}

type Set struct {
	AreaId      *string      `parser:"  '#'@Ident"`
	NodesInArea *NodesInArea `parser:"| @@"`
	Sets        *Sets        `parser:"| '{' @@ '}'"`
}

type SetWithSign struct {
	Op  string `parser:"@('+' | '-')"`
	Set *Set   `parser:"@@"`
}

type Sets struct {
	InitialSet *Set           `parser:"@@"`
	NextSets   []*SetWithSign `parser:"@@*"`
}

type TagFilter struct {
	Key   string `parser:"'tag' ':' @Ident '='"`
	Value string `parser:"@Ident"`
}