52 lines
1.3 KiB
Go
52 lines
1.3 KiB
Go
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package xml
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// writer interface used by the xml encoder to write an encoded xml
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// document in a writer.
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type writer interface {
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// Write takes in a byte slice and returns number of bytes written and error
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Write(p []byte) (n int, err error)
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// WriteRune takes in a rune and returns number of bytes written and error
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WriteRune(r rune) (n int, err error)
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// WriteString takes in a string and returns number of bytes written and error
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WriteString(s string) (n int, err error)
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// String method returns a string
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String() string
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// Bytes return a byte slice.
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Bytes() []byte
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}
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// Encoder is an XML encoder that supports construction of XML values
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// using methods. The encoder takes in a writer and maintains a scratch buffer.
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type Encoder struct {
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w writer
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scratch *[]byte
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}
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// NewEncoder returns an XML encoder
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func NewEncoder(w writer) *Encoder {
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scratch := make([]byte, 64)
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return &Encoder{w: w, scratch: &scratch}
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}
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// String returns the string output of the XML encoder
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func (e Encoder) String() string {
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return e.w.String()
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}
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// Bytes returns the []byte slice of the XML encoder
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func (e Encoder) Bytes() []byte {
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return e.w.Bytes()
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}
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// RootElement builds a root element encoding
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// It writes it's start element tag. The value should be closed.
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func (e Encoder) RootElement(element StartElement) Value {
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return newValue(e.w, e.scratch, element)
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}
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