Enum tcl::interpreter::AppendStyle

pub enum AppendStyle {
    Replace,
    Append,
    ReplaceAsList,
    AppendAsList,
}

When setting a variable, how should we handle existing values

Variants

Replace	If the variable exists, replace it
Append	If the variable exists, append it
ReplaceAsList	Set the variable to a single-element list
AppendAsList	If the variable exists, append a list element to it