mirror of
https://github.com/MetaCubeX/mihomo.git
synced 2026-10-11 09:48:10 +08:00
47 lines
694 B
Go
47 lines
694 B
Go
package utils
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import (
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"fmt"
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"regexp"
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"strconv"
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)
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var rateStringRegexp = regexp.MustCompile(`^(\d+)\s*([KMGT]?)([Bb])ps$`)
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func StringToBps(s string) uint64 {
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if s == "" {
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return 0
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}
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// when have not unit, use Mbps
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if v, err := strconv.Atoi(s); err == nil {
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return StringToBps(fmt.Sprintf("%d Mbps", v))
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}
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m := rateStringRegexp.FindStringSubmatch(s)
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if m == nil {
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return 0
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}
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var n uint64 = 1
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switch m[2] {
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case "T":
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n *= 1000
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fallthrough
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case "G":
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n *= 1000
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fallthrough
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case "M":
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n *= 1000
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fallthrough
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case "K":
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n *= 1000
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}
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v, _ := strconv.ParseUint(m[1], 10, 64)
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n *= v
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if m[3] == "b" {
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// Bits, need to convert to bytes
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n /= 8
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}
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return n
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}
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