Struct predicates::str::DifferencePredicate

pub struct DifferencePredicate { /* fields omitted */ }

Predicate that diffs two strings.

This is created by the predicate::str::similar.

Methods

impl DifferencePredicate

pub fn split<S>(self, split: S) -> Self where     S: Into<Cow<'static, str>>,

The split used when identifying changes.

Common splits include:

• "" for char-level.
• " " for word-level.
• "\n" for line-level.

Default: "\n"

Examples

use predicates::prelude::*;

let predicate_fn = predicate::str::similar("Hello World").split(" ");
assert_eq!(true, predicate_fn.eval("Hello World"));

pub fn distance(self, distance: i32) -> Self

The maximum allowed edit distance.

Default: 0

Examples

use predicates::prelude::*;

let predicate_fn = predicate::str::similar("Hello World!").split("").distance(1);
assert_eq!(true, predicate_fn.eval("Hello World!"));
assert_eq!(true, predicate_fn.eval("Hello World"));
assert_eq!(false, predicate_fn.eval("Hello World?"));

Trait Implementations

impl Debug for DifferencePredicate

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

Formats the value using the given formatter.

impl Clone for DifferencePredicate

fn clone(&self) -> DifferencePredicate

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for DifferencePredicate

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for DifferencePredicate

impl Predicate<str> for DifferencePredicate

fn eval(&self, edit: &str) -> bool

Execute this Predicate against variable, returning the resulting boolean.

fn find_case<'a>(&'a self, expected: bool, variable: &str) -> Option<Case<'a>>

Find a case that proves this predicate as expected when run against variable.

impl PredicateReflection for DifferencePredicate

Important traits for Box<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn parameters<'a>(&'a self) -> Box<Iterator<Item = Parameter<'a>> + 'a>

Parameters of the current Predicate.

Important traits for Box<R>

impl<R> Read for Box<R> where
    R: Read + ?Sized, impl<W> Write for Box<W> where
    W: Write + ?Sized, impl<I> Iterator for Box<I> where
    I: Iterator + ?Sized,  type Item = <I as Iterator>::Item;

fn children(&'a self) -> Box<Iterator<Item = Child<'a>> + 'a>

Nested Predicates of the current Predicate.

impl Display for DifferencePredicate

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

Formats the value using the given formatter.