Quinean Regex Tester This challenge is pretty simple. As input, you take in a regular expression.
Then, you output a truthy/falsey of whether or not your source code matches the regular expression. It's that simple! Just two more things:

No quine builtins; you may, however, access the code's source code by file IO, etc.
This is code-golf, so shortest code in bytes wins!

Example
If your source code was say, abc, an input of a\wc would return true and an input of a\dc would return false.
Z shell, 12 bytes

grep "$@"&lt;$0


Zsh conditionals understand only exit codes, and the scripts exits with 0 or 1 accordingly.

In addition, this prints a non-empty string (the source code) for a match and an empty one for a mismatch, which could be as truthy/falsy values in combination with test/[.

The program reads its own file, but according to this comment by the OP, this is allowed.