Function writeXMLStringForTextElement

src/IO/WriteHelpers.h:714–742

Writing a string to a text node in XML (not into an attribute - otherwise you need more escaping).

/// Writing a string to a text node in XML (not into an attribute - otherwise you need more escaping).
inline void writeXMLStringForTextElement(const char * begin, const char * end, WriteBuffer & buf)
{
    const char * pos = begin;
    while (true)
    {
        /// NOTE Perhaps for some XML parsers, you need to escape the zero byte and some control characters.
        const char * next_pos = find_first_symbols<'<', '&'>(pos, end);

        if (next_pos == end)
        {
            buf.write(pos, end - pos);
            break;
        }
        if (*next_pos == '<')
        {
            buf.write(pos, next_pos - pos);
            ++next_pos;
            writeCString("&lt;", buf);
        }
        else if (*next_pos == '&')
        {
            buf.write(pos, next_pos - pos);
            ++next_pos;
            writeCString("&amp;", buf);
        }

        pos = next_pos;
    }
}

inline void writeXMLStringForTextElement(std::string_view s, WriteBuffer & buf)
{