nquads

package

v1.2.5 Latest Latest Go to latest Published: Jul 24, 2023 License: Apache-2.0 Imports: 7 Imported by: 15

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Repository

github.com/cayleygraph/quad

Links

Open Source Insights

Documentation ¶

Overview ¶

Package nquads implements parsing the RDF 1.1 N-Quads like line-based syntax for RDF datasets.

Typed parsing is performed as based on a simplified grammar derived from the N-Quads grammar defined by http://www.w3.org/TR/n-quads/.

Raw parsing is performed as defined by http://www.w3.org/TR/n-quads/ with the exception that parser will allow relative IRI values, which are prohibited by the N-Quads quad-Quads specifications.

For a complete definition of the grammar, see cquads.rl and nquads.rl.

Index ¶

Variables
func Parse(statement string) (quad.Quad, error)
func ParseRaw(statement string) (quad.Quad, error)
type Reader
- func NewReader(r io.Reader, raw bool) *Reader
- func (dec *Reader) Close() error
- func (dec *Reader) ReadQuad() (quad.Quad, error)
type Writer
- func NewWriter(w io.Writer) *Writer

Constants ¶

This section is empty.

Variables ¶

View Source

var AutoConvertTypedString = true

AutoConvertTypedString allows to convert TypedString values to native equivalents directly while parsing. It will call ToNative on all TypedString values.

If conversion error occurs, it will preserve original TypedString value.

View Source

var DecodeRaw = false

Functions ¶

func Parse ¶

func Parse(statement string) (quad.Quad, error)

ParseTyped returns a valid quad.Quad or a non-nil error. ParseTyped does handle comments except where the comment placement does not prevent a complete valid quad.Quad from being defined.

func ParseRaw ¶

func ParseRaw(statement string) (quad.Quad, error)

ParseRaw returns a valid quad.Quad or a non-nil error. ParseRaw does handle comments except where the comment placement does not prevent a complete valid quad.Quad from being defined.

Types ¶

type Reader ¶

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

Reader implements N-Quad document parsing according to the RDF 1.1 N-Quads specification.

func NewReader ¶

func NewReader(r io.Reader, raw bool) *Reader

NewReader returns an N-Quad decoder that takes its input from the provided io.Reader.

func (*Reader) Close ¶

func (dec *Reader) Close() error

func (*Reader) ReadQuad ¶

func (dec *Reader) ReadQuad() (quad.Quad, error)

ReadQuad returns the next valid N-Quad as a quad.Quad, or an error.

type Writer ¶

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

Writer implements N-Quad document generator according to the RDF 1.1 N-Quads specification.

func NewWriter ¶

func NewWriter(w io.Writer) *Writer

NewWriter returns an N-Quad encoder that writes its output to the provided io.Writer.

func (*Writer) Close ¶

func (enc *Writer) Close() error

func (*Writer) WriteQuad ¶

func (enc *Writer) WriteQuad(q quad.Quad) error

func (*Writer) WriteQuads ¶

func (enc *Writer) WriteQuads(buf []quad.Quad) (int, error)

Source Files ¶

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