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23 lines
540 B
Go
23 lines
540 B
Go
package shared
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import (
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"io"
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"golang.org/x/text/transform"
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)
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// NewXMLSanitizerReader creates an io.Reader that
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// wraps another io.Reader and removes illegal xml
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// characters from the io stream.
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func NewXMLSanitizerReader(xml io.Reader) io.Reader {
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isIllegal := func(r rune) bool {
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return !(r == 0x09 ||
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r == 0x0A ||
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r == 0x0D ||
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r >= 0x20 && r <= 0xDF77 ||
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r >= 0xE000 && r <= 0xFFFD ||
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r >= 0x10000 && r <= 0x10FFFF)
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}
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t := transform.Chain(transform.RemoveFunc(isIllegal))
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return transform.NewReader(xml, t)
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}
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