Function writeName

expfmt/text_create.go:512–532

writeName writes a string as-is if it complies with the legacy naming scheme, or escapes it in double quotes if not.

(w enhancedWriter, name string)

// writeName writes a string as-is if it complies with the legacy naming
// scheme, or escapes it in double quotes if not.
func writeName(w enhancedWriter, name string) (int, error) {
	if model.LegacyValidation.IsValidMetricName(name) {
		return w.WriteString(name)
	}
	var written int
	var err error
	err = w.WriteByte('"')
	written++
	if err != nil {
		return written, err
	}
	var n int
	n, err = writeEscapedString(w, name, true)
	written += n
	if err != nil {
		return written, err
	}
	err = w.WriteByte('"')
	written++
	return written, err
}