54 lines
1.1 KiB
Go
54 lines
1.1 KiB
Go
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package util
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import (
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"math/rand"
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"regexp"
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"strings"
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)
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func FindInSlice(slice []string, val string) bool {
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for _, item := range slice {
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if item == val {
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return true
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}
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}
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return false
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}
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func ValuesString(m map[string]string) string {
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values := make([]string, 0, len(m))
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for _, v := range m {
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values = append(values, v)
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}
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return strings.Join(values, ", ")
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}
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var matchFirstCap = regexp.MustCompile("(.)([A-Z][a-z]+)")
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var matchAllCap = regexp.MustCompile("([a-z0-9])([A-Z])")
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func ToSnakeCase(str string) string {
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snake := matchFirstCap.ReplaceAllString(str, "${1}_${2}")
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snake = matchAllCap.ReplaceAllString(snake, "${1}_${2}")
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return strings.ToLower(snake)
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}
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const letterBytes = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
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const (
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letterIdxBits = 6 // 6 bits to represent a letter index
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letterIdxMask = 1<<letterIdxBits - 1 // All 1-bits, as many as letterIdxBits
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)
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func RandomString(n int) string {
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if n <= 0 {
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return ""
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}
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b := make([]byte, n)
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for i := 0; i < n; {
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if idx := int(rand.Int63() & letterIdxMask); idx < len(letterBytes) {
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b[i] = letterBytes[idx]
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i++
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}
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}
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return string(b)
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}
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