package unicode
SimpleFold returns the equivalent unicode in Upper case if input is lower case and vice-versa.
package main
import (
"fmt"
"unicode"
)
func main() {
sr := unicode.SimpleFold('\u212A')
fmt.Println(sr) // wrong way to print!
fmt.Printf("%+q\n", sr) // simpleFold will return K (Kelvin symbol)
src := unicode.SimpleFold('你')
fmt.Printf("%q\n", src) // simpleFold will return the same character 你
fmt.Printf("%+q\n", src) // simpleFold will return the unicode codepoint
sra := unicode.SimpleFold('A')
fmt.Printf("%+q\n", sra) // simpleFold will return the lower case 'a'
}
Output :
75
'K'
'你'
'\u4f60'
'a'
References :
http://golang.org/pkg/unicode/#SimpleFold
https://blog.golang.org/strings
