rules:
  - id: unnecessary-parent-operator
    message: Unnecessary parent operator. Remove one to fix.
    languages: [yaml]
    patterns:
      - pattern-inside: "rules: [..., $RULE, ...]"
      - pattern-either:
          - patterns:
              - pattern: |
                  pattern-either:
                  - $THING1
                  - ...
              - pattern-not: |
                  pattern-either:
                  - $THING1
                  - $THING2
                  - ...
          - patterns:
              - pattern: |
                  patterns:
                  - $THING1
                  - ...
              - pattern-not: |
                  patterns:
                  - $THING1
                  - $THING2
                  - ...
          - pattern: |
              pattern-either:
              - ...
              - pattern-either:
                - ...
    severity: WARNING
    metadata:
      category: best-practice
      technology:
        - semgrep