Struct clap::builder::StringValueParser

#[non_exhaustive]
pub struct StringValueParser {}

Implementation for ValueParser::string

Useful for composing new TypedValueParsers

Implementations

impl StringValueParser

pub fn new() -> Self

Implementation for ValueParser::string

Trait Implementations

impl Clone for StringValueParser

fn clone(&self) -> StringValueParser

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for StringValueParser

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

Formats the value using the given formatter.

impl Default for StringValueParser

fn default() -> Self

Returns the “default value” for a type.

impl TypedValueParser for StringValueParser

type Value = String

Argument’s value type

fn parse_ref(
    &self,
    cmd: &Command,
    arg: Option<&Arg>,
    value: &OsStr
) -> Result<Self::Value, Error>

Parse the argument value

fn parse(
    &self,
    cmd: &Command,
    _arg: Option<&Arg>,
    value: OsString
) -> Result<Self::Value, Error>

Parse the argument value

fn possible_values(
    &self
) -> Option<Box<dyn Iterator<Item = PossibleValue> + '_>>

Reflect on enumerated value properties

fn map<T, F>(self, func: F) -> MapValueParser<Self, F> where
    T: Send + Sync + Clone,
    F: Fn(Self::Value) -> T + Clone, 

Adapt a TypedValueParser from one value to another

fn try_map<T, E, F>(self, func: F) -> TryMapValueParser<Self, F> where
    F: Fn(Self::Value) -> Result<T, E> + Clone + Send + Sync + 'static,
    T: Send + Sync + Clone,
    E: Into<Box<dyn Error + Send + Sync + 'static>>, 

Adapt a TypedValueParser from one value to another

impl Copy for StringValueParser