func github.com/prometheus/common/expfmt.isValidMetricNameContinuation

2 uses

	github.com/prometheus/common/expfmt (current package)
		text_parse.go#L602: 		if p.err != nil || !isValidMetricNameContinuation(p.currentByte) {
		text_parse.go#L715: func isValidMetricNameContinuation(b byte) bool {