/
naming.go
52 lines (44 loc) · 1.05 KB
/
naming.go
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package sjson
import (
"strings"
"github.com/tinkler/moonmist/pkg/jsonz"
)
func ToSnakedName(name string) string {
if name == "" {
return ""
}
var (
value = jsonz.CommonInitialismsReplacer.Replace(name)
buf strings.Builder
lastCase, nextCase, nextNumber bool // upper case == true
curCase = value[0] <= 'Z' && value[0] >= 'A'
)
for i, v := range value[:len(value)-1] {
nextCase = value[i+1] <= 'Z' && value[i+1] >= 'A'
nextNumber = value[i+1] >= '0' && value[i+1] <= '9'
if curCase {
if lastCase && (nextCase || nextNumber) {
buf.WriteRune(v + 32)
} else {
if i > 0 && value[i-1] != '_' && value[i+1] != '_' {
buf.WriteByte('_')
}
buf.WriteRune(v + 32)
}
} else {
buf.WriteRune(v)
}
lastCase = curCase
curCase = nextCase
}
if curCase {
if !lastCase && len(value) > 1 {
buf.WriteByte('_')
}
buf.WriteByte(value[len(value)-1] + 32)
} else {
buf.WriteByte(value[len(value)-1])
}
ret := buf.String()
return ret
}