1package text
 2
 3import (
 4	"strings"
 5	"unicode"
 6)
 7
 8// Empty tell if the string is considered empty once space
 9// and not graphics characters are removed
10func Empty(s string) bool {
11	trim := strings.TrimFunc(s, func(r rune) bool {
12		return unicode.IsSpace(r) || !unicode.IsGraphic(r)
13	})
14
15	return trim == ""
16}
17
18// Safe will tell if a character in the string is considered unsafe
19// Currently trigger on unicode control character except \n, \t and \r
20func Safe(s string) bool {
21	for _, r := range s {
22		switch r {
23		case '\t', '\r', '\n':
24			continue
25		}
26
27		if unicode.IsControl(r) {
28			return false
29		}
30	}
31
32	return true
33}