Method readAttrValue

xmlparser/decoder.go:333–360

readAttrValue reads an attribute value.

()

// readAttrValue reads an attribute value.
func (d *Decoder) readAttrValue() ([]byte, bool) {
	d.buf.Reset()

	b, ok := d.mustReadByte()
	if !ok {
		return nil, false
	}

	if b == '"' || b == '\'' {
		// Quoted attribute value
		// We can just read until the closing quote.
		if !d.mustReadUntil(b) {
			return nil, false
		}
		// Remove the trailing quote from the buffer
		d.buf.Remove(1)
	} else {
		// Unquoted attribute value.
		// Unread the byte for further processing
		d.unreadByte(b)
		// Read until we meet a byte that is not valid in an unquoted attribute value.
		if !d.mustReadWhileFn(isValueByte) {
			return nil, false
		}
	}

	return d.buf.Bytes(), true
}

// isValueByte checks if a byte is valid in an unquoted attribute value.
// See: https://www.w3.org/TR/REC-html40/intro/sgmltut.html#h-3.2.2