Struct Args 

pub struct Args { /* private fields */ }

The arguments after the verb. Options are taken by name; what is left are positionals.

Implementations

impl Args

pub fn new(items: impl IntoIterator<Item = impl Into<String>>) -> Self

pub fn flag(&mut self, names: &[&str]) -> bool

Take a flag by any of its names (-i, --interactive).

pub fn value(&mut self, names: &[&str]) -> Result<Option<String>, String>

Take --name VALUE or --name=VALUE (the last one wins).

pub fn number<T: FromStr>( &mut self, names: &[&str], ) -> Result<Option<T>, String>

Take --name N as a number.

pub fn positional(&mut self) -> Option<String>

Take the next positional. Take options first, so an option’s value is not mistaken for one.

pub fn rest(&mut self) -> Vec<String>

Every remaining positional (including those after --).

pub fn is_empty(&self) -> bool

Whether anything (option or positional) is left.

pub fn finish(self) -> Result<(), String>

Everything was taken; otherwise the first leftover is an error.

Trait Implementations

impl Clone for Args

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Args

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

Formats the value using the given formatter.

impl Default for Args

fn default() -> Self

Returns the “default value” for a type.

impl PartialEq for Args

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Args