Enum OptFlags 

#[non_exhaustive]
pub enum OptFlags {
    OptionsEverywhere,
    PrefixMatchLongOptions,
}

Flags for changing command-line parser’s behavior.

See OptSpecs::flag method for more information.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

OptionsEverywhere

Accept command-line options and other arguments in mixed order in the command line. That is, options can come after non-option arguments.

This is not the default behavior. By default the first non-option argument in the command line stops option parsing and the rest of the command line is parsed as non-options (other arguments), even if they look like options.

PrefixMatchLongOptions

Long options don’t need to be written in full in the command line. They can be shortened as long as there are enough characters to find a unique prefix match. If there are more than one match the option given in the command line is classified as unknown.

Trait Implementations

impl Debug for OptFlags

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq for OptFlags

fn eq(&self, other: &OptFlags) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for OptFlags