Make LabelNameRE public.
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@ -61,7 +61,8 @@ const (
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QuantileLabel = "quantile"
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)
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var labelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$")
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// LabelNameRE is a regular expression matching valid label names.
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var LabelNameRE = regexp.MustCompile("^[a-zA-Z_][a-zA-Z0-9_]*$")
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// A LabelName is a key for a LabelSet or Metric. It has a value associated
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// therewith.
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@ -73,7 +74,7 @@ func (ln *LabelName) UnmarshalYAML(unmarshal func(interface{}) error) error {
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if err := unmarshal(&s); err != nil {
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return err
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}
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if !labelNameRE.MatchString(s) {
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if !LabelNameRE.MatchString(s) {
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return fmt.Errorf("%q is not a valid label name", s)
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}
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*ln = LabelName(s)
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@ -9,16 +9,15 @@ import (
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"sort"
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"strings"
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"github.com/prometheus/client_golang/model"
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"github.com/golang/protobuf/proto"
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dto "github.com/prometheus/client_model/go"
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"github.com/golang/protobuf/proto"
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"github.com/prometheus/client_golang/model"
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)
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var (
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metricNameRE = regexp.MustCompile(`^[a-zA-Z_][a-zA-Z0-9_:]*$`)
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labelNameRE = regexp.MustCompile(`^[a-zA-Z_][a-zA-Z0-9_]*$`)
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)
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// Labels represents a collection of label name -> value mappings. This type is
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@ -194,6 +193,6 @@ func (d *Desc) String() string {
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}
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func checkLabelName(l string) bool {
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return labelNameRE.MatchString(l) &&
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return model.LabelNameRE.MatchString(l) &&
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!strings.HasPrefix(l, model.ReservedLabelPrefix)
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}
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