Method readTokenAsLabelName

expfmt/text_parse.go:629–641

readTokenAsLabelName copies a label name from p.buf into p.currentToken. The first byte considered is the byte already read (now in p.currentByte). The first byte not part of a label name is still copied into p.currentByte, but not into p.currentToken.

()

// The first byte not part of a label name is still copied into p.currentByte,
// but not into p.currentToken.
func (p *TextParser) readTokenAsLabelName() {
	p.currentToken.Reset()
	if !isValidLabelNameStart(p.currentByte) {
		return
	}
	for {
		p.currentToken.WriteByte(p.currentByte)
		p.currentByte, p.err = p.buf.ReadByte()
		if p.err != nil || !isValidLabelNameContinuation(p.currentByte) {
			return
		}
	}
}

// readTokenAsLabelValue copies a label value from p.buf into p.currentToken.
// In contrast to the other 'readTokenAs...' functions, which start with the