Match in GREL

gistfile1.txt

[
  {
    "op": "core/column-addition",
    "description": "Create column Material Description at index 1 based on column Description using expression grel:value.replace(/\\n/,\" \").match(/(.*)Typewritten text:(.*)/)[0]",
    "engineConfig": {
      "facets": [],
      "mode": "row-based"
    },
    "newColumnName": "Material Description",
    "columnInsertIndex": 1,
    "baseColumnName": "Description",
    "expression": "grel:value.replace(/\\n/,\" \").match(/(.*)Typewritten text:(.*)/)[0]",
    "onError": "set-to-blank"
  },
  {
    "op": "core/column-addition",
    "description": "Create column Material Transcription at index 1 based on column Description using expression grel:value.replace(/\\n/,\" \").match(/(.*)Typewritten text:(.*)/)[1]",
    "engineConfig": {
      "facets": [],
      "mode": "row-based"
    },
    "newColumnName": "Material Transcription",
    "columnInsertIndex": 1,
    "baseColumnName": "Description",
    "expression": "grel:value.replace(/\\n/,\" \").match(/(.*)Typewritten text:(.*)/)[1]",
    "onError": "set-to-blank"
  }
]