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- // Package strcase converts strings to snake_case or CamelCase
- package strcase
-
- import (
- "strings"
- )
-
- // Converts a string to snake_case
- func ToSnake(s string) string {
- s = addWordBoundariesToNumbers(s)
- s = strings.Trim(s, " ")
- n := ""
- for i, v := range s {
- // treat acronyms as words, eg for JSONData -> JSON is a whole word
- preIsCapital := false
- if i > 0 {
- w := s[i-1]
- preIsCapital = w >= 'A' && w <= 'Z'
- }
- if i > 0 && v >= 'A' && v <= 'Z' && n[len(n)-1] != '_' && !preIsCapital {
- // add underscore if next letter is a capital
- n += "_" + string(v)
- } else if v == ' ' {
- // replace spaces with underscores
- n += "_"
- } else {
- n = n + string(v)
- }
- }
- n = strings.ToLower(n)
- return n
- }
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