rustHow to compile a regex in Rust?
Compiling a regex in Rust is a simple process. It can be done using the regex! macro. This macro takes a string literal containing the regular expression and returns a Regex object.
let re = regex!(r"^\d{4}-\d{2}-\d{2}$");The regex! macro takes the following parts:
r: A raw string literal prefix. This tells the compiler to interpret the string as a regular expression instead of a normal string.- The regular expression itself:
^\d{4}-\d{2}-\d{2}$
The output of the example code is a Regex object that can be used to match strings against the regular expression.
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