PEGs are a great replacement for a complicated regex, and can express a lot of things that are hard to do with a regex. But they're also more verbose, and fewer

PEGs are a great replacement for a complicated regex, and can express a lot of things that are hard to do with a regex. But they're also more verbose, and fewer developers are familiar with their usage. PCRE regex is kind of the lingua franca of text-matching, and making it available would be helpful for newcomers imo.