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45 lines
945 B
45 lines
945 B
4 years ago
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package classic
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import (
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"time"
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"errors"
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"strings"
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"strconv"
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)
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// "PT6M57S" => 6 min 57 s
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func parseDuration(d string) (time.Duration, error) {
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var err error
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goto start
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error:
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return 0, errors.New("unknown duration code")
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start:
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if d[0:2] != "PT" { goto error }
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mIndex := strings.IndexByte(d, 'M')
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if mIndex == -1 { goto error }
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minutes, err := strconv.ParseUint(d[2:mIndex], 10, 32)
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if err != nil { return 0, err }
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seconds, err := strconv.ParseUint(d[mIndex:len(d)-1], 10, 32)
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if err != nil { return 0, err }
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dur := time.Duration(minutes) * time.Minute + time.Duration(seconds) * time.Second
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return dur, nil
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}
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// "137,802 views" => 137802
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func extractNumber(s string) (uint64, error) {
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// Extract numbers from view string
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var clean []byte
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for _, char := range []byte(s) {
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if char >= 0x30 && char <= 0x39 {
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clean = append(clean, char)
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}
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}
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// Convert to uint
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return strconv.ParseUint(string(clean), 10, 64)
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}
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