thank you четверг, 3 сентября 2020 г., 13:13:59 UTC+3 пользователь Brian Candler написал: > > On Thursday, 3 September 2020 10:15:29 UTC+1, Emilius Omeen wrote: >> >> pkg "regexp" not have function which allow many group replace, only have >> ReplaceAllString >> >> >> > If I just take the examples you posted at the start, I can do that with a > single ReplaceAllString: > https://play.golang.org/p/9haO39qV0K2 > https://play.golang.org/p/v3dLbTKHCtR > > I think the original problem definition doesn't explain why it needs more > than this - maybe you need some more test cases. > > You might find Expand <https://golang.org/pkg/regexp/#Regexp.Expand> / > ExpandString or ReplaceAllStringFunc useful. > > Note that you can write your original regexp with capture groups to > distinguish which branch matched: > > r := regexp.MustCompile(`(^9(\d{10})$)|(^00(.*)$)|(^\+(.*))`) > ^ ^ ^ ^ ^ ^ > $1 $2 $3 $4 $5 $6 > > Using ...Submatch or ...SubmatchIndex, you can identify which of the > branches matched. If your regexp matches the first alternative, $1 (and > $2) will be set. If it matches the second alternative, $3 (and $4) will be > set. And so on. >
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