pub enum IndexPrefix {
    None,
    Simple,
    SpacePadded,
    ZeroPadded,
}
Expand description

Definition of index prefixes in option lists.

Variants

None

Lists of options will not display any hints regarding the position/index of the positions.

Simple

A simple index (1-based) will be displayed before the option string representation.

SpacePadded

A simple index (1-based) will be displayed before the option string representation.

The number representation of the index is padded with spaces so that the length is the same of the largest index. That is, if the list has 100 options, the first 9 options will be rendered as " 1", " 2", .... Then all indexes with two digits will be padded with one space, and finally the last option with index 100 will not need to be padded.

ZeroPadded

A simple index (1-based) will be displayed before the option string representation.

The number representation of the index is padded with zeroes so that the length is the same of the largest index. That is, if the list has 100 options, the first 9 options will be rendered as "001", "002", .... Then all indexes with two digits will be padded with one zero, and finally the last option with index 100 will not need to be padded.

Trait Implementations

Returns a copy of the value. Read more

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Formats the value using the given formatter. Read more

This method tests for self and other values to be equal, and is used by ==. Read more

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

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Calls U::from(self).

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Performs the conversion.