Edit - line.js

Edit: line.js

/*istanbul ignore start*/
"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.diffLines = diffLines;
exports.diffTrimmedLines = diffTrimmedLines;
exports.lineDiff = void 0;

/*istanbul ignore end*/
var
/*istanbul ignore start*/
_base = _interopRequireDefault(require("./base"))
/*istanbul ignore end*/
;

var
/*istanbul ignore start*/
_params = require("../util/params")
/*istanbul ignore end*/
;

/*istanbul ignore start*/ function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

/*istanbul ignore end*/
var lineDiff = new
/*istanbul ignore start*/
_base
/*istanbul ignore end*/
[
/*istanbul ignore start*/
"default"
/*istanbul ignore end*/
]();

/*istanbul ignore start*/
exports.lineDiff = lineDiff;

/*istanbul ignore end*/
lineDiff.tokenize = function (value) {
  if (this.options.stripTrailingCr) {
    // remove one \r before \n to match GNU diff's --strip-trailing-cr behavior
    value = value.replace(/\r\n/g, '\n');
  }

var retLines = [],
      linesAndNewlines = value.split(/(\n|\r\n)/); // Ignore the final empty token that occurs if the string ends with a new line

if (!linesAndNewlines[linesAndNewlines.length - 1]) {
    linesAndNewlines.pop();
  } // Merge the content and line separators into single tokens

for (var i = 0; i < linesAndNewlines.length; i++) {
    var line = linesAndNewlines[i];

if (i % 2 && !this.options.newlineIsToken) {
      retLines[retLines.length - 1] += line;
    } else {
      if (this.options.ignoreWhitespace) {
        line = line.trim();
      }

retLines.push(line);
    }
  }

return retLines;
};

function diffLines(oldStr, newStr, callback) {
  return lineDiff.diff(oldStr, newStr, callback);
}

function diffTrimmedLines(oldStr, newStr, callback) {
  var options =
  /*istanbul ignore start*/
  (0,
  /*istanbul ignore end*/

/*istanbul ignore start*/
  _params
  /*istanbul ignore end*/
  .
  /*istanbul ignore start*/
  generateOptions)
  /*istanbul ignore end*/
  (callback, {
    ignoreWhitespace: true
  });
  return lineDiff.diff(oldStr, newStr, options);
}
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