[trishume]

The reason is that they basically rely on using the Oniguruma regret engine, and reimplementing that in JS would be hella slow.

[algorithmsRcool]

> using the Oniguruma regret engine

I'm surprised I've never seen that typo for regex before. It's wonderful.

[WildUtah]

Sometimes you feel a regret. "I know!" you say, "I'll fix things with regretular expressions." Now you have two regrets.

[nickpeterson]

Maybe "I'll fix this with expressions of regret."

[trishume]

lol I typed that on an IOS device correctly but it autocompleted it since "regex" isn't a real word apparently.

[Sean1708]

Well no, it's a portmanteau of "regular" and "expression".