Function xmlBufferWriteQuotedString 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn xmlBufferWriteQuotedString(
    buf: *mut _xmlBuffer,
    string: *const xmlChar,
)

Append a quoted string to a buffer.

Appends the string wrapped in quotes. If the string contains both single and double quotes, double quotes are escaped with " (upstream buf.c 2.15; no backslash or CR/LF escaping exists in this version).

UPSTREAM-PARITY

void xmlBufferWriteQuotedString(xmlBuffer *buf, const xmlChar *string);

buf.c 2.15: with a double-quote-containing string that also contains a single quote, emits " + string with " → " + "; with only double quotes emits ' + string + '; otherwise emits " + string + ". A NULL string yields the bare quote pair, exactly like upstream (xmlStrchr(NULL) misses, xmlBufferCat(NULL) fails silently).

SAFETY

• buf must be a valid pointer to a _xmlBuffer (or NULL).
• string must be a valid NUL-terminated xmlChar string (or NULL).