weblate/.github/matchers/sphinx-linkcheck.json

{
  "problemMatcher": [
    {
      "owner": "sphinx",
      "pattern": [
        {
          "file": 1,
          "line": 2,
          "message": 3,
          "regexp": "^([^:]*):(\\d+|None): \\[broken\\] (.*)$"
        }
      ]
    }
  ]
}