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

Definition of index prefixes in option lists.

Variants§

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None

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

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Simple

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

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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.

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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
Performs copy-assignment from source. Read more
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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason. Read more

Auto Trait Implementations§

Blanket Implementations§

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Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.