scan

type Options ¶

type Options struct {
	Selector cascadia.Selector
	Attr     string
}

Options represents the scan options.

type ScanFunc ¶

type ScanFunc func(dst reflect.Value, n *html.Node) error

ScanFunc represents a scanner func.

The function receives a destination to scan into and the source as the root html node.

Scan functions can be nested, for example a slice scan func will typically nest its element types, a struct scan func will nest its field types.

func Bytes(opts Options) ScanFunc

func Float(opts Options) ScanFunc

func Int(opts Options) ScanFunc

func ScannerOf(t reflect.Type, opts Options) (ScanFunc, error)

func Slice(opts Options, t reflect.Type) (ScanFunc, error)

func String(opts Options) ScanFunc

func Struct(opts Options, t reflect.Type) (ScanFunc, error)

func Uint(opts Options) ScanFunc

type Scanner ¶

type Scanner struct {
	// contains filtered or unexported fields
}

Scanner implements a type scanner.

The scanner extracts raw HTML data into registered types. When the scanner sees a new type it will analyze it and create a scanfunc that can be re-used with different html nodes.

The scanner supports the follow types:

• int
• uint
• float
• string
• byte
• struct

The scanner also supports exporting multiple html nodes into a slice of the above types.

The scanner uses tags to lookup data in the root html node and extract its data, for example:

AuthorURLs []string `css:"a.author@href"`

Will export all hrefs from anchor tags that have the class `.author`.

func NewScanner() *Scanner

func (s *Scanner) Scan(dst interface{}, src *html.Node, opts Options) error