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46 lines
741 B

package main
import (
"fmt"
"os"
"strconv"
"unicode"
)
func IsNumeric(s string) bool {
for _, r := range s {
if !unicode.IsDigit(r) {
return false
}
}
return true
}
func main() {
arguments := os.Args[1:]
for i := range arguments {
if IsNumeric(arguments[i]) {
number, _ := strconv.Atoi(arguments[i])
boole := false
if os.Args[1] == "--upper" {
boole = true
}
if number <= 26 && number >= 1 && !boole {
number += 96
fmt.Printf("%c", rune(number))
} else if number <= 26 && number >= 1 && boole {
number += 64
fmt.Printf("%c", rune(number))
} else {
fmt.Print(" ")
}
} else {
if !(arguments[i] == "--upper" && i == 0) {
fmt.Print(" ")
}
}
}
fmt.Println()
}