Test coverage examples are broken

Problem to solve

Documentation provides examples to use in CI jobs to determine test coverage. The examples no longer work.

Further details

Using (?i)total.*? (100(?:\.0+)?\%|[1-9]?\d(?:\.\d+)?\%)$ gives the jobs:test:coverage config must be a regular expression with re2 syntax error at pipelines.

Related docs page with a broken example https://docs.gitlab.com/15.1/ee/ci/pipelines/settings.html#test-coverage-examples

#362234 (comment 1031074140)

Also holds for other examples.

Proposal

Prepending and appending a '/' resolves the issue. E.g. '/(?i)total.*? (100(?:\.0+)?\%|[1-9]?\d(?:\.\d+)?\%)$/'

Who can address the issue

I will submit a MR in the coming days to resolve the issue.

Other links/references

Issue raised in #362234 (comment 1031074140)