Struct ilex::testing::DigitalMatcher

pub struct DigitalMatcher { /* private fields */ }

A complex digital token matcher.

This type is used the matcher argument type for complex digital rules, such as those that have signs and exponents.

Implementations

impl DigitalMatcher

pub fn new<D: Into<Text>>( radix: u8, digits: impl IntoIterator<Item = D> ) -> Self

Creates a new matcher, with the given radix and digit blocks for the mantissa.

pub fn sign(self, sign: Sign) -> Self

Sets the sign for the most recently added chunk of digits.

pub fn sign_span(self, sign: Sign, span: impl Into<Text>) -> Self

Sets the sign (and sign span) for the most recently added chunk of digits.

pub fn exp<D: Into<Text>>( self, radix: u8, prefix: impl Into<Text>, digits: impl IntoIterator<Item = D> ) -> Self

Adds an expected exponent.

The exponent must be in the given radix, delimited by the given prefix, and have the given digits.

Trait Implementations

impl Default for DigitalMatcher

fn default() -> DigitalMatcher

Returns the “default value” for a type.