Function emitCDATA

opensca/sca/java/xml/xml.go:2008–2037

emitCDATA writes to w the CDATA-wrapped plain text data s. It escapes CDATA directives nested in s.

(w io.Writer, s []byte)

// emitCDATA writes to w the CDATA-wrapped plain text data s.
// It escapes CDATA directives nested in s.
func emitCDATA(w io.Writer, s []byte) error {
	if len(s) == 0 {
		return nil
	}
	if _, err := w.Write(cdataStart); err != nil {
		return err
	}

	for {
		before, after, ok := bytes.Cut(s, cdataEnd)
		if !ok {
			break
		}
		// Found a nested CDATA directive end.
		if _, err := w.Write(before); err != nil {
			return err
		}
		if _, err := w.Write(cdataEscape); err != nil {
			return err
		}
		s = after
	}

	if _, err := w.Write(s); err != nil {
		return err
	}

	_, err := w.Write(cdataEnd)
	return err
}

// procInst parses the `param="..."` or `param='...'`
// value out of the provided string, returning "" if not found.