Struct JsRegex 

pub struct JsRegex { /* private fields */ }

A compiled JS regular expression.

Implementations

impl JsRegex

pub fn new(source: &str, flags: &str) -> JsRegex

Compiles a JS pattern. Panics on an invalid pattern: patterns are constants, and every one is compiled by the unit tests of the module that owns it.

pub fn try_new(source: &str, flags: &str) -> Result<JsRegex, String>

Compiled once per (source, flags) in the process: upstream builds new RegExp(...) inside methods called on every parse (innerPattern()), and a ported step that does the same must not recompile a Unicode case-insensitive pattern each time (ru/uk ran ~30x slower than other locales).

pub fn source(&self) -> &str

regex.source: the original JS pattern text.

pub fn flags(&self) -> &str

regex.flags.

pub fn exec(&self, text: &str) -> Option<RegexMatch>

regex.exec(text) for a non-global regex: the first match, searching from the start. A backtracking-limit error counts as “no match”.

pub fn is_match(&self, text: &str) -> bool

regex.test(text), or the truthiness of text.match(regex).

Trait Implementations

impl Clone for JsRegex

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 JsRegex

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

Formats the value using the given formatter.