opposite direction for length in before_regex() condition

[name-snrl]

Description

When I specify the length in the before_regex() condition, I expect the string to grow in the opposite direction.

Mapping bug

No response

Steps to reproduce

npairs.add_rules {
  rule('with', ';', 'nix'):with_pair(conds.before_regex('^%s*wit$', 4)):with_cr(conds.none())
}

nvim test.nix

type something like:
bla bla bla with

but pair won't appear

Minimal config

npairs.add_rules {
  rule('with', ';', 'nix'):with_pair(conds.before_regex('^%s*wit$', 4)):with_cr(conds.none())
}