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67 lines
1.2 KiB
Go
67 lines
1.2 KiB
Go
package util
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import "strings"
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// Title returns a string value with s[0] which has been convert into upper case that
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// there are not empty input text
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func Title(s string) string {
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if len(s) == 0 {
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return s
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}
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return strings.ToUpper(s[:1]) + s[1:]
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}
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// Untitle returns a string value with s[0] which has been convert into lower case that
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// there are not empty input text
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func Untitle(s string) string {
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if len(s) == 0 {
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return s
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}
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return strings.ToLower(s[:1]) + s[1:]
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}
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// Index returns the index where the item equal,it will return -1 if mismatched
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func Index(slice []string, item string) int {
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for i := range slice {
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if slice[i] == item {
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return i
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}
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}
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return -1
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}
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// SafeString converts the input string into a safe naming style in golang
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func SafeString(in string) string {
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if len(in) == 0 {
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return in
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}
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data := strings.Map(func(r rune) rune {
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if isSafeRune(r) {
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return r
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}
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return '_'
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}, in)
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headRune := rune(data[0])
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if isNumber(headRune) {
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return "_" + data
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}
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return data
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}
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func isSafeRune(r rune) bool {
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return isLetter(r) || isNumber(r) || r == '_'
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}
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func isLetter(r rune) bool {
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return 'A' <= r && r <= 'z'
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}
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func isNumber(r rune) bool {
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return '0' <= r && r <= '9'
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}
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