宜搭的公式编辑开源吗？

能看的出来是基于CodeMirror，比较好奇内部处理逻辑，该模块是否开源？

{
  "text": "ADD(​数值B​,SUM(​子表单.数值C​))", "marks": [{
    "from": {
      "line": 0, "ch": 4, "sticky": null
    }, "to": {
      "line": 0, "ch": 9, "sticky": null
    }, "value": "numberField_llahc7i0", "invalid": false
  }, {
    "from": {
      "line": 0, "ch": 14, "sticky": null
    }, "to": {
      "line": 0, "ch": 23, "sticky": null
    }, "value": "numberField_llahc7hz", "invalid": false
  }], "isCmData": true
}