pub fn edit_text(obj: &Object, s: &Settings) -> Result<String, Error>Expand description
Text of obj to edit and compile again (the palette’s editor), in
settings made by Settings::for_editing: text, but a tagged
object as :tag:object, which compiles. An error for an object with
no such text: a part without text (has_text), a string holding "
(the calculator has no way to write one), or text cut at MAX_TEXT.