Enum ParseVal

pub enum ParseVal {
    Bool(bool),
    Num(i64),
    String(String),
    List(Vec<ParseVal>),
    OutStream(OutputFile),
}

The value returned from parsing an option.

Variants

Bool(bool)

A boolean option.

Num(i64)

A number option.

String(String)

A string option.

List(Vec<ParseVal>)

A list of values.

OutStream(OutputFile)

An output stream (stdout, stderr, file name)

Implementations

impl ParseVal

pub fn bool(&self) -> bool

pub fn num(&self) -> i64

pub fn string(&self) -> String

pub fn pos_num(&self) -> Option<u64>

pub fn num_list(&self) -> Vec<i64>

pub fn num_list_exact<const N: usize>(&self) -> [Option<i64>; N]

Parse a list that should have exactly N elements. If elements are missing, then add None to the end of the list.

pub fn not_null_outstream(&self) -> Option<OutputFile>

Returns an output stream if it is not the null stream

Trait Implementations

impl Clone for ParseVal

fn clone(&self) -> ParseVal

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Display for ParseVal

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

Formats the value using the given formatter.