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utils.go
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/
utils.go
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package xss
//spaceIndex get the pos of first space
func spaceIndex(str string) int {
locs := regSpace.FindStringIndex(str)
if locs != nil {
return locs[0]
}
return -1
}
//remove html comments
func stripCommentTag(html string) string {
return regComment.ReplaceAllString(html, "")
}
//remove invisible characters
func stripBlankChar(html string) string {
chs := []rune(html)
n := len(chs)
items := []rune{}
for i := 0; i < n; i++ {
ch := chs[i]
if ch == 127 {
continue
}
if ch <= 13 {
if ch == 10 || ch == 13 {
items = append(items, ch)
}
continue
}
items = append(items, ch)
}
return string(items)
}