[
  {
    "op": "core/column-addition",
    "engineConfig": {
      "facets": [
        {
          "type": "text",
          "name": "dc:identifier",
          "columnName": "dc:identifier",
          "query": "^urn:nbn",
          "mode": "regex",
          "caseSensitive": false,
          "invert": false
        }
      ],
      "mode": "row-based"
    },
    "baseColumnName": "dc:identifier",
    "expression": "grel:value",
    "onError": "set-to-blank",
    "newColumnName": "urn",
    "columnInsertIndex": 2,
    "description": "Create column urn at index 2 based on column dc:identifier using expression grel:value"
  },
  {
    "op": "core/column-addition",
    "engineConfig": {
      "facets": [
        {
          "type": "text",
          "name": "dc:identifier",
          "columnName": "dc:identifier",
          "query": "doi.org/",
          "mode": "text",
          "caseSensitive": false,
          "invert": false
        }
      ],
      "mode": "row-based"
    },
    "baseColumnName": "dc:identifier",
    "expression": "grel:value.replace('https://doi.org/','')",
    "onError": "set-to-blank",
    "newColumnName": "doi",
    "columnInsertIndex": 2,
    "description": "Create column doi at index 2 based on column dc:identifier using expression grel:value"
  },
  {
    "op": "core/column-addition",
    "engineConfig": {
      "facets": [
        {
          "type": "text",
          "name": "dc:identifier",
          "columnName": "dc:identifier",
          "query": "\\.pdf$",
          "mode": "regex",
          "caseSensitive": false,
          "invert": false
        }
      ],
      "mode": "row-based"
    },
    "baseColumnName": "dc:identifier",
    "expression": "grel:value",
    "onError": "set-to-blank",
    "newColumnName": "pdf",
    "columnInsertIndex": 2,
    "description": "Create column pdf at index 2 based on column dc:identifier using expression grel:value"
  }
]