30 lines
624 B
Go
30 lines
624 B
Go
package main
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import (
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"fmt"
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"regexp"
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"strconv"
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"time"
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)
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var durationRe = regexp.MustCompile(`^(\d+(?:\.\d+)?)(ms|s|m)$`)
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func parseDuration(s string) (time.Duration, error) {
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m := durationRe.FindStringSubmatch(s)
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if m == nil {
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return 0, fmt.Errorf("invalid duration: %s", s)
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}
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value, _ := strconv.ParseFloat(m[1], 64)
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switch m[2] {
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case "ms":
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return time.Duration(value * float64(time.Millisecond)), nil
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case "s":
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return time.Duration(value * float64(time.Second)), nil
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case "m":
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return time.Duration(value * float64(time.Minute)), nil
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default:
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return 0, fmt.Errorf("unknown unit: %s", m[2])
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}
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}
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