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