package main

import "strings"

// copied from go-junit-report for fixing issues with chars that
// are out of range.

// from encoding/xml/xml.go, replace chars by unknown char
func isInCharacterRange(r rune) (inrange bool) {
	return r == 0x09 ||
		r == 0x0A ||
		r == 0x0D ||
		r >= 0x20 && r <= 0xD7FF ||
		r >= 0xE000 && r <= 0xFFFD ||
		r >= 0x10000 && r <= 0x10FFFF
}

func escapeIllegalChars(str string) string {
	return strings.Map(func(r rune) rune {
		if isInCharacterRange(r) {
			return r
		}
		return '\uFFFD'
	}, str)
}