/
strings.go
63 lines (52 loc) · 1.16 KB
/
strings.go
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package util
import (
"fmt"
"strings"
)
var replaceStr string
func init() {
replaceStr = "*"
}
func HideString(s string, beginPosShown int, endPosShownOrNone ...int) string {
l := len(s)
var preHidden, sufHidden string
begin, end := PythonLikePos(l, beginPosShown, endPosShownOrNone...)
if beginPosShown > 0 {
preHidden = strings.Repeat(replaceStr, beginPosShown)
}
if end < l {
sufHidden = strings.Repeat(replaceStr, l-end)
}
return fmt.Sprintf("%s%s%s", preHidden, s[begin:end], sufHidden)
}
func ResetHiddenReplacer(r string) {
replaceStr = r
}
func PythonLikeSlice(s string, beg int, endOrNone ...int) string {
begin, end := PythonLikePos(len(s), beg, endOrNone...)
return s[begin:end]
}
func PythonLikePos(length, beg int, endOrNone ...int) (begin, end int) {
end = length
if len(endOrNone) > 0 {
end = transferPythonPosition(length, endOrNone[0])
}
begin = transferPythonPosition(length, beg)
if begin > end {
return begin, begin
}
return
}
func transferPythonPosition(length, posNav int) (pos int) {
if posNav > length {
return length
}
if posNav >= 0 {
return posNav
}
pos = length + posNav
if pos > 0 {
return
}
return 0
}