Function tx_element_set_text 

#[unsafe(no_mangle)]
pub unsafe extern "C" fn tx_element_set_text(
    doc: *mut TxDocument,
    element: TxNodeId,
    text: *const c_char,
) -> TxError

Sets the text content of an element.

If a child text node exists, its content is replaced. Otherwise, a new text node is created and inserted as the first child.

Safety

• doc must be a valid, non-null pointer to a TxDocument.
• text must be a valid, non-null pointer to a null-terminated UTF-8 string.