What is wrong with regular expression in workflow?

Question

GitLab

workflow:
  rules:
    - if: "$CI_PIPELINE_SOURCE == 'web' && $PROCEDURE !~ /(export|import)/"
      when: never
    - if: "$CI_PIPELINE_SOURCE == 'web' && $STAND !~ /(dev|test|preprod|all)/"
      when: never

PROCEDURE and STAND are specified when starting the pipeline
, the goal is to check the specified variables so that they are only from a certain list
, what is the error here and is it possible to combine this into 1 condition with || ?

Answer 1

workflow:
  rules:
    - if: '$CI_PIPELINE_SOURCE == "web" && $PROCEDURE !~ /regex-expression/ || $STAND !~ /regex-expression/'
      when: never

You can train with regulars here https://regex101.com/