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✍️ Editing: diff.js

            File: /opt/alt/alt-nodejs22/root/usr/lib/node_modules/npm/node_modules.bundled/diff/dist/diff.js

            Size: 52.49 KB | 
            Last Modified: 2026-04-09 17:59:00        

(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
  typeof define === 'function' && define.amd ? define(['exports'], factory) :
  (global = global || self, factory(global.Diff = {}));
}(this, (function (exports) { 'use strict';

function Diff() {}
  Diff.prototype = {
    diff: function diff(oldString, newString) {
      var _options$timeout;

var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
      var callback = options.callback;

if (typeof options === 'function') {
        callback = options;
        options = {};
      }

this.options = options;
      var self = this;

oldString = this.castInput(oldString);
      newString = this.castInput(newString);
      oldString = this.removeEmpty(this.tokenize(oldString));
      newString = this.removeEmpty(this.tokenize(newString));
      var newLen = newString.length,
          oldLen = oldString.length;
      var editLength = 1;
      var maxEditLength = newLen + oldLen;

if (options.maxEditLength) {
        maxEditLength = Math.min(maxEditLength, options.maxEditLength);
      }

var maxExecutionTime = (_options$timeout = options.timeout) !== null && _options$timeout !== void 0 ? _options$timeout : Infinity;
      var abortAfterTimestamp = Date.now() + maxExecutionTime;
      var bestPath = [{
        oldPos: -1,
        lastComponent: undefined
      }]; // Seed editLength = 0, i.e. the content starts with the same values

var newPos = this.extractCommon(bestPath[0], newString, oldString, 0);

if (bestPath[0].oldPos + 1 >= oldLen && newPos + 1 >= newLen) {
        // Identity per the equality and tokenizer
        return done([{
          value: this.join(newString),
          count: newString.length
        }]);
      } // Once we hit the right edge of the edit graph on some diagonal k, we can
      // definitely reach the end of the edit graph in no more than k edits, so
      // there's no point in considering any moves to diagonal k+1 any more (from
      // which we're guaranteed to need at least k+1 more edits).
      // Similarly, once we've reached the bottom of the edit graph, there's no
      // point considering moves to lower diagonals.
      // We record this fact by setting minDiagonalToConsider and
      // maxDiagonalToConsider to some finite value once we've hit the edge of
      // the edit graph.
      // This optimization is not faithful to the original algorithm presented in
      // Myers's paper, which instead pointlessly extends D-paths off the end of
      // the edit graph - see page 7 of Myers's paper which notes this point
      // explicitly and illustrates it with a diagram. This has major performance
      // implications for some common scenarios. For instance, to compute a diff
      // where the new text simply appends d characters on the end of the
      // original text of length n, the true Myers algorithm will take O(n+d^2)
      // time while this optimization needs only O(n+d) time.

var minDiagonalToConsider = -Infinity,
          maxDiagonalToConsider = Infinity; // Main worker method. checks all permutations of a given edit length for acceptance.

function execEditLength() {
        for (var diagonalPath = Math.max(minDiagonalToConsider, -editLength); diagonalPath <= Math.min(maxDiagonalToConsider, editLength); diagonalPath += 2) {
          var basePath = void 0;
          var removePath = bestPath[diagonalPath - 1],
              addPath = bestPath[diagonalPath + 1];

if (removePath) {
            // No one else is going to attempt to use this value, clear it
            bestPath[diagonalPath - 1] = undefined;
          }

var canAdd = false;

if (addPath) {
            // what newPos will be after we do an insertion:
            var addPathNewPos = addPath.oldPos - diagonalPath;
            canAdd = addPath && 0 <= addPathNewPos && addPathNewPos < newLen;
          }

var canRemove = removePath && removePath.oldPos + 1 < oldLen;

if (!canAdd && !canRemove) {
            // If this path is a terminal then prune
            bestPath[diagonalPath] = undefined;
            continue;
          } // Select the diagonal that we want to branch from. We select the prior
          // path whose position in the old string is the farthest from the origin
          // and does not pass the bounds of the diff graph
          // TODO: Remove the `+ 1` here to make behavior match Myers algorithm
          //       and prefer to order removals before insertions.

if (!canRemove || canAdd && removePath.oldPos + 1 < addPath.oldPos) {
            basePath = self.addToPath(addPath, true, undefined, 0);
          } else {
            basePath = self.addToPath(removePath, undefined, true, 1);
          }

newPos = self.extractCommon(basePath, newString, oldString, diagonalPath);

if (basePath.oldPos + 1 >= oldLen && newPos + 1 >= newLen) {
            // If we have hit the end of both strings, then we are done
            return done(buildValues(self, basePath.lastComponent, newString, oldString, self.useLongestToken));
          } else {
            bestPath[diagonalPath] = basePath;

if (basePath.oldPos + 1 >= oldLen) {
              maxDiagonalToConsider = Math.min(maxDiagonalToConsider, diagonalPath - 1);
            }

if (newPos + 1 >= newLen) {
              minDiagonalToConsider = Math.max(minDiagonalToConsider, diagonalPath + 1);
            }
          }
        }

editLength++;
      } // Performs the length of edit iteration. Is a bit fugly as this has to support the
      // sync and async mode which is never fun. Loops over execEditLength until a value
      // is produced, or until the edit length exceeds options.maxEditLength (if given),
      // in which case it will return undefined.

if (callback) {
        (function exec() {
          setTimeout(function () {
            if (editLength > maxEditLength || Date.now() > abortAfterTimestamp) {
              return callback();
            }

if (!execEditLength()) {
              exec();
            }
          }, 0);
        })();
      } else {
        while (editLength <= maxEditLength && Date.now() <= abortAfterTimestamp) {
          var ret = execEditLength();

if (ret) {
            return ret;
          }
        }
      }
    },
    addToPath: function addToPath(path, added, removed, oldPosInc) {
      var last = path.lastComponent;

if (last && last.added === added && last.removed === removed) {
        return {
          oldPos: path.oldPos + oldPosInc,
          lastComponent: {
            count: last.count + 1,
            added: added,
            removed: removed,
            previousComponent: last.previousComponent
          }
        };
      } else {
        return {
          oldPos: path.oldPos + oldPosInc,
          lastComponent: {
            count: 1,
            added: added,
            removed: removed,
            previousComponent: last
          }
        };
      }
    },
    extractCommon: function extractCommon(basePath, newString, oldString, diagonalPath) {
      var newLen = newString.length,
          oldLen = oldString.length,
          oldPos = basePath.oldPos,
          newPos = oldPos - diagonalPath,
          commonCount = 0;

while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {
        newPos++;
        oldPos++;
        commonCount++;
      }

if (commonCount) {
        basePath.lastComponent = {
          count: commonCount,
          previousComponent: basePath.lastComponent
        };
      }

basePath.oldPos = oldPos;
      return newPos;
    },
    equals: function equals(left, right) {
      if (this.options.comparator) {
        return this.options.comparator(left, right);
      } else {
        return left === right || this.options.ignoreCase && left.toLowerCase() === right.toLowerCase();
      }
    },
    removeEmpty: function removeEmpty(array) {
      var ret = [];

for (var i = 0; i < array.length; i++) {
        if (array[i]) {
          ret.push(array[i]);
        }
      }

return ret;
    },
    castInput: function castInput(value) {
      return value;
    },
    tokenize: function tokenize(value) {
      return value.split('');
    },
    join: function join(chars) {
      return chars.join('');
    }
  };

function buildValues(diff, lastComponent, newString, oldString, useLongestToken) {
    // First we convert our linked list of components in reverse order to an
    // array in the right order:
    var components = [];
    var nextComponent;

while (lastComponent) {
      components.push(lastComponent);
      nextComponent = lastComponent.previousComponent;
      delete lastComponent.previousComponent;
      lastComponent = nextComponent;
    }

components.reverse();
    var componentPos = 0,
        componentLen = components.length,
        newPos = 0,
        oldPos = 0;

for (; componentPos < componentLen; componentPos++) {
      var component = components[componentPos];

if (!component.removed) {
        if (!component.added && useLongestToken) {
          var value = newString.slice(newPos, newPos + component.count);
          value = value.map(function (value, i) {
            var oldValue = oldString[oldPos + i];
            return oldValue.length > value.length ? oldValue : value;
          });
          component.value = diff.join(value);
        } else {
          component.value = diff.join(newString.slice(newPos, newPos + component.count));
        }

newPos += component.count; // Common case

if (!component.added) {
          oldPos += component.count;
        }
      } else {
        component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));
        oldPos += component.count; // Reverse add and remove so removes are output first to match common convention
        // The diffing algorithm is tied to add then remove output and this is the simplest
        // route to get the desired output with minimal overhead.

if (componentPos && components[componentPos - 1].added) {
          var tmp = components[componentPos - 1];
          components[componentPos - 1] = components[componentPos];
          components[componentPos] = tmp;
        }
      }
    } // Special case handle for when one terminal is ignored (i.e. whitespace).
    // For this case we merge the terminal into the prior string and drop the change.
    // This is only available for string mode.

var finalComponent = components[componentLen - 1];

if (componentLen > 1 && typeof finalComponent.value === 'string' && (finalComponent.added || finalComponent.removed) && diff.equals('', finalComponent.value)) {
      components[componentLen - 2].value += finalComponent.value;
      components.pop();
    }

return components;
  }

var characterDiff = new Diff();
  function diffChars(oldStr, newStr, options) {
    return characterDiff.diff(oldStr, newStr, options);
  }

function generateOptions(options, defaults) {
    if (typeof options === 'function') {
      defaults.callback = options;
    } else if (options) {
      for (var name in options) {
        /* istanbul ignore else */
        if (options.hasOwnProperty(name)) {
          defaults[name] = options[name];
        }
      }
    }

return defaults;
  }

//
  // Ranges and exceptions:
  // Latin-1 Supplement, 0080–00FF
  //  - U+00D7  × Multiplication sign
  //  - U+00F7  ÷ Division sign
  // Latin Extended-A, 0100–017F
  // Latin Extended-B, 0180–024F
  // IPA Extensions, 0250–02AF
  // Spacing Modifier Letters, 02B0–02FF
  //  - U+02C7  ˇ &#711;  Caron
  //  - U+02D8  ˘ &#728;  Breve
  //  - U+02D9  ˙ &#729;  Dot Above
  //  - U+02DA  ˚ &#730;  Ring Above
  //  - U+02DB  ˛ &#731;  Ogonek
  //  - U+02DC  ˜ &#732;  Small Tilde
  //  - U+02DD  ˝ &#733;  Double Acute Accent
  // Latin Extended Additional, 1E00–1EFF

var extendedWordChars = /^[A-Za-z\xC0-\u02C6\u02C8-\u02D7\u02DE-\u02FF\u1E00-\u1EFF]+$/;
  var reWhitespace = /\S/;
  var wordDiff = new Diff();

wordDiff.equals = function (left, right) {
    if (this.options.ignoreCase) {
      left = left.toLowerCase();
      right = right.toLowerCase();
    }

return left === right || this.options.ignoreWhitespace && !reWhitespace.test(left) && !reWhitespace.test(right);
  };

wordDiff.tokenize = function (value) {
    // All whitespace symbols except newline group into one token, each newline - in separate token
    var tokens = value.split(/([^\S\r\n]+|[()[\]{}'"\r\n]|\b)/); // Join the boundary splits that we do not consider to be boundaries. This is primarily the extended Latin character set.

for (var i = 0; i < tokens.length - 1; i++) {
      // If we have an empty string in the next field and we have only word chars before and after, merge
      if (!tokens[i + 1] && tokens[i + 2] && extendedWordChars.test(tokens[i]) && extendedWordChars.test(tokens[i + 2])) {
        tokens[i] += tokens[i + 2];
        tokens.splice(i + 1, 2);
        i--;
      }
    }

return tokens;
  };

var lineDiff = new Diff();

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;
  };

var sentenceDiff = new Diff();

sentenceDiff.tokenize = function (value) {
    return value.split(/(\S.+?[.!?])(?=\s+|$)/);
  };

function diffSentences(oldStr, newStr, callback) {
    return sentenceDiff.diff(oldStr, newStr, callback);
  }

var cssDiff = new Diff();

cssDiff.tokenize = function (value) {
    return value.split(/([{}:;,]|\s+)/);
  };

function diffCss(oldStr, newStr, callback) {
    return cssDiff.diff(oldStr, newStr, callback);
  }

function _typeof(obj) {
    "@babel/helpers - typeof";

if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
      _typeof = function (obj) {
        return typeof obj;
      };
    } else {
      _typeof = function (obj) {
        return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
      };
    }

return _typeof(obj);
  }

function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

return obj;
  }

function ownKeys(object, enumerableOnly) {
    var keys = Object.keys(object);

if (Object.getOwnPropertySymbols) {
      var symbols = Object.getOwnPropertySymbols(object);
      if (enumerableOnly) symbols = symbols.filter(function (sym) {
        return Object.getOwnPropertyDescriptor(object, sym).enumerable;
      });
      keys.push.apply(keys, symbols);
    }

return keys;
  }

function _objectSpread2(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? arguments[i] : {};

if (i % 2) {
        ownKeys(Object(source), true).forEach(function (key) {
          _defineProperty(target, key, source[key]);
        });
      } else if (Object.getOwnPropertyDescriptors) {
        Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
      } else {
        ownKeys(Object(source)).forEach(function (key) {
          Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
        });
      }
    }

return target;
  }

function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread();
  }

function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) return _arrayLikeToArray(arr);
  }

function _iterableToArray(iter) {
    if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter);
  }

function _unsupportedIterableToArray(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _arrayLikeToArray(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(o);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
  }

function _arrayLikeToArray(arr, len) {
    if (len == null || len > arr.length) len = arr.length;

for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];

return arr2;
  }

function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
  }

var objectPrototypeToString = Object.prototype.toString;
  var jsonDiff = new Diff(); // Discriminate between two lines of pretty-printed, serialized JSON where one of them has a
  // dangling comma and the other doesn't. Turns out including the dangling comma yields the nicest output:

jsonDiff.useLongestToken = true;
  jsonDiff.tokenize = lineDiff.tokenize;

jsonDiff.castInput = function (value) {
    var _this$options = this.options,
        undefinedReplacement = _this$options.undefinedReplacement,
        _this$options$stringi = _this$options.stringifyReplacer,
        stringifyReplacer = _this$options$stringi === void 0 ? function (k, v) {
      return typeof v === 'undefined' ? undefinedReplacement : v;
    } : _this$options$stringi;
    return typeof value === 'string' ? value : JSON.stringify(canonicalize(value, null, null, stringifyReplacer), stringifyReplacer, '  ');
  };

jsonDiff.equals = function (left, right) {
    return Diff.prototype.equals.call(jsonDiff, left.replace(/,([\r\n])/g, '$1'), right.replace(/,([\r\n])/g, '$1'));
  };

function diffJson(oldObj, newObj, options) {
    return jsonDiff.diff(oldObj, newObj, options);
  } // This function handles the presence of circular references by bailing out when encountering an
  // object that is already on the "stack" of items being processed. Accepts an optional replacer

function canonicalize(obj, stack, replacementStack, replacer, key) {
    stack = stack || [];
    replacementStack = replacementStack || [];

if (replacer) {
      obj = replacer(key, obj);
    }

var i;

for (i = 0; i < stack.length; i += 1) {
      if (stack[i] === obj) {
        return replacementStack[i];
      }
    }

var canonicalizedObj;

if ('[object Array]' === objectPrototypeToString.call(obj)) {
      stack.push(obj);
      canonicalizedObj = new Array(obj.length);
      replacementStack.push(canonicalizedObj);

for (i = 0; i < obj.length; i += 1) {
        canonicalizedObj[i] = canonicalize(obj[i], stack, replacementStack, replacer, key);
      }

stack.pop();
      replacementStack.pop();
      return canonicalizedObj;
    }

if (obj && obj.toJSON) {
      obj = obj.toJSON();
    }

if (_typeof(obj) === 'object' && obj !== null) {
      stack.push(obj);
      canonicalizedObj = {};
      replacementStack.push(canonicalizedObj);

var sortedKeys = [],
          _key;

for (_key in obj) {
        /* istanbul ignore else */
        if (obj.hasOwnProperty(_key)) {
          sortedKeys.push(_key);
        }
      }

sortedKeys.sort();

for (i = 0; i < sortedKeys.length; i += 1) {
        _key = sortedKeys[i];
        canonicalizedObj[_key] = canonicalize(obj[_key], stack, replacementStack, replacer, _key);
      }

stack.pop();
      replacementStack.pop();
    } else {
      canonicalizedObj = obj;
    }

return canonicalizedObj;
  }

var arrayDiff = new Diff();

arrayDiff.tokenize = function (value) {
    return value.slice();
  };

arrayDiff.join = arrayDiff.removeEmpty = function (value) {
    return value;
  };

function diffArrays(oldArr, newArr, callback) {
    return arrayDiff.diff(oldArr, newArr, callback);
  }

function parsePatch(uniDiff) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
        delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
        list = [],
        i = 0;

function parseIndex() {
      var index = {};
      list.push(index); // Parse diff metadata

while (i < diffstr.length) {
        var line = diffstr[i]; // File header found, end parsing diff metadata

if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
          break;
        } // Diff index

var headerMatch = /^(?:Index:|diff(?: -r \w+)+)\s+/.exec(line);

if (headerMatch) {
          index.index = line.substring(headerMatch[0].length).trim();
        }

i++;
      } // Parse file headers if they are defined. Unified diff requires them, but
      // there's no technical issues to have an isolated hunk without file header

parseFileHeader(index);
      parseFileHeader(index); // Parse hunks

index.hunks = [];

while (i < diffstr.length) {
        var _line = diffstr[i];

if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
          break;
        } else if (/^@@/.test(_line)) {
          index.hunks.push(parseHunk());
        } else if (_line && options.strict) {
          // Ignore unexpected content unless in strict mode
          throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
        } else {
          i++;
        }
      }
    } // Parses the --- and +++ headers, if none are found, no lines
    // are consumed.

function parseFileHeader(index) {
      var fileHeaderMatch = /^(---|\+\+\+)\s+/.exec(diffstr[i]);

if (fileHeaderMatch) {
        var keyPrefix = fileHeaderMatch[1] === '---' ? 'old' : 'new';
        var data = diffstr[i].substring(3).trim().split('\t', 2);
        var fileName = data[0].replace(/\\\\/g, '\\');

if (fileName.startsWith('"') && fileName.endsWith('"')) {
          fileName = fileName.substr(1, fileName.length - 2);
        }

index[keyPrefix + 'FileName'] = fileName;
        index[keyPrefix + 'Header'] = (data[1] || '').trim();
        i++;
      }
    } // Parses a hunk
    // This assumes that we are at the start of a hunk.

function parseHunk() {
      var chunkHeaderIndex = i,
          chunkHeaderLine = diffstr[i++],
          chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);
      var hunk = {
        oldStart: +chunkHeader[1],
        oldLines: typeof chunkHeader[2] === 'undefined' ? 1 : +chunkHeader[2],
        newStart: +chunkHeader[3],
        newLines: typeof chunkHeader[4] === 'undefined' ? 1 : +chunkHeader[4],
        lines: [],
        linedelimiters: []
      }; // Unified Diff Format quirk: If the chunk size is 0,
      // the first number is one lower than one would expect.
      // https://www.artima.com/weblogs/viewpost.jsp?thread=164293

if (hunk.oldLines === 0) {
        hunk.oldStart += 1;
      }

if (hunk.newLines === 0) {
        hunk.newStart += 1;
      }

var addCount = 0,
          removeCount = 0;

for (; i < diffstr.length; i++) {
        // Lines starting with '---' could be mistaken for the "remove line" operation
        // But they could be the header for the next file. Therefore prune such cases out.
        if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
          break;
        }

var operation = diffstr[i].length == 0 && i != diffstr.length - 1 ? ' ' : diffstr[i][0];

if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
          hunk.lines.push(diffstr[i]);
          hunk.linedelimiters.push(delimiters[i] || '\n');

if (operation === '+') {
            addCount++;
          } else if (operation === '-') {
            removeCount++;
          } else if (operation === ' ') {
            addCount++;
            removeCount++;
          }
        } else {
          break;
        }
      } // Handle the empty block count case

if (!addCount && hunk.newLines === 1) {
        hunk.newLines = 0;
      }

if (!removeCount && hunk.oldLines === 1) {
        hunk.oldLines = 0;
      } // Perform optional sanity checking

if (options.strict) {
        if (addCount !== hunk.newLines) {
          throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
        }

if (removeCount !== hunk.oldLines) {
          throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
        }
      }

return hunk;
    }

while (i < diffstr.length) {
      parseIndex();
    }

return list;
  }

// Iterator that traverses in the range of [min, max], stepping
  // by distance from a given start position. I.e. for [0, 4], with
  // start of 2, this will iterate 2, 3, 1, 4, 0.
  function distanceIterator (start, minLine, maxLine) {
    var wantForward = true,
        backwardExhausted = false,
        forwardExhausted = false,
        localOffset = 1;
    return function iterator() {
      if (wantForward && !forwardExhausted) {
        if (backwardExhausted) {
          localOffset++;
        } else {
          wantForward = false;
        } // Check if trying to fit beyond text length, and if not, check it fits
        // after offset location (or desired location on first iteration)

if (start + localOffset <= maxLine) {
          return localOffset;
        }

forwardExhausted = true;
      }

if (!backwardExhausted) {
        if (!forwardExhausted) {
          wantForward = true;
        } // Check if trying to fit before text beginning, and if not, check it fits
        // before offset location

if (minLine <= start - localOffset) {
          return -localOffset++;
        }

backwardExhausted = true;
        return iterator();
      } // We tried to fit hunk before text beginning and beyond text length, then
      // hunk can't fit on the text. Return undefined

};
  }

function applyPatch(source, uniDiff) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};

if (typeof uniDiff === 'string') {
      uniDiff = parsePatch(uniDiff);
    }

if (Array.isArray(uniDiff)) {
      if (uniDiff.length > 1) {
        throw new Error('applyPatch only works with a single input.');
      }

uniDiff = uniDiff[0];
    } // Apply the diff to the input

var lines = source.split(/\r\n|[\n\v\f\r\x85]/),
        delimiters = source.match(/\r\n|[\n\v\f\r\x85]/g) || [],
        hunks = uniDiff.hunks,
        compareLine = options.compareLine || function (lineNumber, line, operation, patchContent) {
      return line === patchContent;
    },
        errorCount = 0,
        fuzzFactor = options.fuzzFactor || 0,
        minLine = 0,
        offset = 0,
        removeEOFNL,
        addEOFNL;
    /**
     * Checks if the hunk exactly fits on the provided location
     */

function hunkFits(hunk, toPos) {
      for (var j = 0; j < hunk.lines.length; j++) {
        var line = hunk.lines[j],
            operation = line.length > 0 ? line[0] : ' ',
            content = line.length > 0 ? line.substr(1) : line;

if (operation === ' ' || operation === '-') {
          // Context sanity check
          if (!compareLine(toPos + 1, lines[toPos], operation, content)) {
            errorCount++;

if (errorCount > fuzzFactor) {
              return false;
            }
          }

toPos++;
        }
      }

return true;
    } // Search best fit offsets for each hunk based on the previous ones

for (var i = 0; i < hunks.length; i++) {
      var hunk = hunks[i],
          maxLine = lines.length - hunk.oldLines,
          localOffset = 0,
          toPos = offset + hunk.oldStart - 1;
      var iterator = distanceIterator(toPos, minLine, maxLine);

for (; localOffset !== undefined; localOffset = iterator()) {
        if (hunkFits(hunk, toPos + localOffset)) {
          hunk.offset = offset += localOffset;
          break;
        }
      }

if (localOffset === undefined) {
        return false;
      } // Set lower text limit to end of the current hunk, so next ones don't try
      // to fit over already patched text

minLine = hunk.offset + hunk.oldStart + hunk.oldLines;
    } // Apply patch hunks

var diffOffset = 0;

for (var _i = 0; _i < hunks.length; _i++) {
      var _hunk = hunks[_i],
          _toPos = _hunk.oldStart + _hunk.offset + diffOffset - 1;

diffOffset += _hunk.newLines - _hunk.oldLines;

for (var j = 0; j < _hunk.lines.length; j++) {
        var line = _hunk.lines[j],
            operation = line.length > 0 ? line[0] : ' ',
            content = line.length > 0 ? line.substr(1) : line,
            delimiter = _hunk.linedelimiters && _hunk.linedelimiters[j] || '\n';

if (operation === ' ') {
          _toPos++;
        } else if (operation === '-') {
          lines.splice(_toPos, 1);
          delimiters.splice(_toPos, 1);
          /* istanbul ignore else */
        } else if (operation === '+') {
          lines.splice(_toPos, 0, content);
          delimiters.splice(_toPos, 0, delimiter);
          _toPos++;
        } else if (operation === '\\') {
          var previousOperation = _hunk.lines[j - 1] ? _hunk.lines[j - 1][0] : null;

if (previousOperation === '+') {
            removeEOFNL = true;
          } else if (previousOperation === '-') {
            addEOFNL = true;
          }
        }
      }
    } // Handle EOFNL insertion/removal

if (removeEOFNL) {
      while (!lines[lines.length - 1]) {
        lines.pop();
        delimiters.pop();
      }
    } else if (addEOFNL) {
      lines.push('');
      delimiters.push('\n');
    }

for (var _k = 0; _k < lines.length - 1; _k++) {
      lines[_k] = lines[_k] + delimiters[_k];
    }

return lines.join('');
  } // Wrapper that supports multiple file patches via callbacks.

function applyPatches(uniDiff, options) {
    if (typeof uniDiff === 'string') {
      uniDiff = parsePatch(uniDiff);
    }

var currentIndex = 0;

function processIndex() {
      var index = uniDiff[currentIndex++];

if (!index) {
        return options.complete();
      }

options.loadFile(index, function (err, data) {
        if (err) {
          return options.complete(err);
        }

var updatedContent = applyPatch(data, index, options);
        options.patched(index, updatedContent, function (err) {
          if (err) {
            return options.complete(err);
          }

processIndex();
        });
      });
    }

processIndex();
  }

function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
    if (!options) {
      options = {};
    }

if (typeof options.context === 'undefined') {
      options.context = 4;
    }

var diff = diffLines(oldStr, newStr, options);

if (!diff) {
      return;
    }

diff.push({
      value: '',
      lines: []
    }); // Append an empty value to make cleanup easier

function contextLines(lines) {
      return lines.map(function (entry) {
        return ' ' + entry;
      });
    }

var hunks = [];
    var oldRangeStart = 0,
        newRangeStart = 0,
        curRange = [],
        oldLine = 1,
        newLine = 1;

var _loop = function _loop(i) {
      var current = diff[i],
          lines = current.lines || current.value.replace(/\n$/, '').split('\n');
      current.lines = lines;

if (current.added || current.removed) {
        var _curRange;

// If we have previous context, start with that
        if (!oldRangeStart) {
          var prev = diff[i - 1];
          oldRangeStart = oldLine;
          newRangeStart = newLine;

if (prev) {
            curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
            oldRangeStart -= curRange.length;
            newRangeStart -= curRange.length;
          }
        } // Output our changes

(_curRange = curRange).push.apply(_curRange, _toConsumableArray(lines.map(function (entry) {
          return (current.added ? '+' : '-') + entry;
        }))); // Track the updated file position

if (current.added) {
          newLine += lines.length;
        } else {
          oldLine += lines.length;
        }
      } else {
        // Identical context lines. Track line changes
        if (oldRangeStart) {
          // Close out any changes that have been output (or join overlapping)
          if (lines.length <= options.context * 2 && i < diff.length - 2) {
            var _curRange2;

// Overlapping
            (_curRange2 = curRange).push.apply(_curRange2, _toConsumableArray(contextLines(lines)));
          } else {
            var _curRange3;

// end the range and output
            var contextSize = Math.min(lines.length, options.context);

(_curRange3 = curRange).push.apply(_curRange3, _toConsumableArray(contextLines(lines.slice(0, contextSize))));

var hunk = {
              oldStart: oldRangeStart,
              oldLines: oldLine - oldRangeStart + contextSize,
              newStart: newRangeStart,
              newLines: newLine - newRangeStart + contextSize,
              lines: curRange
            };

if (i >= diff.length - 2 && lines.length <= options.context) {
              // EOF is inside this hunk
              var oldEOFNewline = /\n$/.test(oldStr);
              var newEOFNewline = /\n$/.test(newStr);
              var noNlBeforeAdds = lines.length == 0 && curRange.length > hunk.oldLines;

if (!oldEOFNewline && noNlBeforeAdds && oldStr.length > 0) {
                // special case: old has no eol and no trailing context; no-nl can end up before adds
                // however, if the old file is empty, do not output the no-nl line
                curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
              }

if (!oldEOFNewline && !noNlBeforeAdds || !newEOFNewline) {
                curRange.push('\\ No newline at end of file');
              }
            }

hunks.push(hunk);
            oldRangeStart = 0;
            newRangeStart = 0;
            curRange = [];
          }
        }

oldLine += lines.length;
        newLine += lines.length;
      }
    };

for (var i = 0; i < diff.length; i++) {
      _loop(i);
    }

return {
      oldFileName: oldFileName,
      newFileName: newFileName,
      oldHeader: oldHeader,
      newHeader: newHeader,
      hunks: hunks
    };
  }
  function formatPatch(diff) {
    if (Array.isArray(diff)) {
      return diff.map(formatPatch).join('\n');
    }

var ret = [];

if (diff.oldFileName == diff.newFileName) {
      ret.push('Index: ' + diff.oldFileName);
    }

ret.push('===================================================================');
    ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
    ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));

for (var i = 0; i < diff.hunks.length; i++) {
      var hunk = diff.hunks[i]; // Unified Diff Format quirk: If the chunk size is 0,
      // the first number is one lower than one would expect.
      // https://www.artima.com/weblogs/viewpost.jsp?thread=164293

if (hunk.oldLines === 0) {
        hunk.oldStart -= 1;
      }

if (hunk.newLines === 0) {
        hunk.newStart -= 1;
      }

ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
      ret.push.apply(ret, hunk.lines);
    }

return ret.join('\n') + '\n';
  }
  function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
    return formatPatch(structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options));
  }
  function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
    return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
  }

function arrayEqual(a, b) {
    if (a.length !== b.length) {
      return false;
    }

return arrayStartsWith(a, b);
  }
  function arrayStartsWith(array, start) {
    if (start.length > array.length) {
      return false;
    }

for (var i = 0; i < start.length; i++) {
      if (start[i] !== array[i]) {
        return false;
      }
    }

return true;
  }

function calcLineCount(hunk) {
    var _calcOldNewLineCount = calcOldNewLineCount(hunk.lines),
        oldLines = _calcOldNewLineCount.oldLines,
        newLines = _calcOldNewLineCount.newLines;

if (oldLines !== undefined) {
      hunk.oldLines = oldLines;
    } else {
      delete hunk.oldLines;
    }

if (newLines !== undefined) {
      hunk.newLines = newLines;
    } else {
      delete hunk.newLines;
    }
  }
  function merge(mine, theirs, base) {
    mine = loadPatch(mine, base);
    theirs = loadPatch(theirs, base);
    var ret = {}; // For index we just let it pass through as it doesn't have any necessary meaning.
    // Leaving sanity checks on this to the API consumer that may know more about the
    // meaning in their own context.

if (mine.index || theirs.index) {
      ret.index = mine.index || theirs.index;
    }

if (mine.newFileName || theirs.newFileName) {
      if (!fileNameChanged(mine)) {
        // No header or no change in ours, use theirs (and ours if theirs does not exist)
        ret.oldFileName = theirs.oldFileName || mine.oldFileName;
        ret.newFileName = theirs.newFileName || mine.newFileName;
        ret.oldHeader = theirs.oldHeader || mine.oldHeader;
        ret.newHeader = theirs.newHeader || mine.newHeader;
      } else if (!fileNameChanged(theirs)) {
        // No header or no change in theirs, use ours
        ret.oldFileName = mine.oldFileName;
        ret.newFileName = mine.newFileName;
        ret.oldHeader = mine.oldHeader;
        ret.newHeader = mine.newHeader;
      } else {
        // Both changed... figure it out
        ret.oldFileName = selectField(ret, mine.oldFileName, theirs.oldFileName);
        ret.newFileName = selectField(ret, mine.newFileName, theirs.newFileName);
        ret.oldHeader = selectField(ret, mine.oldHeader, theirs.oldHeader);
        ret.newHeader = selectField(ret, mine.newHeader, theirs.newHeader);
      }
    }

ret.hunks = [];
    var mineIndex = 0,
        theirsIndex = 0,
        mineOffset = 0,
        theirsOffset = 0;

while (mineIndex < mine.hunks.length || theirsIndex < theirs.hunks.length) {
      var mineCurrent = mine.hunks[mineIndex] || {
        oldStart: Infinity
      },
          theirsCurrent = theirs.hunks[theirsIndex] || {
        oldStart: Infinity
      };

if (hunkBefore(mineCurrent, theirsCurrent)) {
        // This patch does not overlap with any of the others, yay.
        ret.hunks.push(cloneHunk(mineCurrent, mineOffset));
        mineIndex++;
        theirsOffset += mineCurrent.newLines - mineCurrent.oldLines;
      } else if (hunkBefore(theirsCurrent, mineCurrent)) {
        // This patch does not overlap with any of the others, yay.
        ret.hunks.push(cloneHunk(theirsCurrent, theirsOffset));
        theirsIndex++;
        mineOffset += theirsCurrent.newLines - theirsCurrent.oldLines;
      } else {
        // Overlap, merge as best we can
        var mergedHunk = {
          oldStart: Math.min(mineCurrent.oldStart, theirsCurrent.oldStart),
          oldLines: 0,
          newStart: Math.min(mineCurrent.newStart + mineOffset, theirsCurrent.oldStart + theirsOffset),
          newLines: 0,
          lines: []
        };
        mergeLines(mergedHunk, mineCurrent.oldStart, mineCurrent.lines, theirsCurrent.oldStart, theirsCurrent.lines);
        theirsIndex++;
        mineIndex++;
        ret.hunks.push(mergedHunk);
      }
    }

return ret;
  }

function loadPatch(param, base) {
    if (typeof param === 'string') {
      if (/^@@/m.test(param) || /^Index:/m.test(param)) {
        return parsePatch(param)[0];
      }

if (!base) {
        throw new Error('Must provide a base reference or pass in a patch');
      }

return structuredPatch(undefined, undefined, base, param);
    }

return param;
  }

function fileNameChanged(patch) {
    return patch.newFileName && patch.newFileName !== patch.oldFileName;
  }

function hunkBefore(test, check) {
    return test.oldStart < check.oldStart && test.oldStart + test.oldLines < check.oldStart;
  }

function cloneHunk(hunk, offset) {
    return {
      oldStart: hunk.oldStart,
      oldLines: hunk.oldLines,
      newStart: hunk.newStart + offset,
      newLines: hunk.newLines,
      lines: hunk.lines
    };
  }

function mergeLines(hunk, mineOffset, mineLines, theirOffset, theirLines) {
    // This will generally result in a conflicted hunk, but there are cases where the context
    // is the only overlap where we can successfully merge the content here.
    var mine = {
      offset: mineOffset,
      lines: mineLines,
      index: 0
    },
        their = {
      offset: theirOffset,
      lines: theirLines,
      index: 0
    }; // Handle any leading content

insertLeading(hunk, mine, their);
    insertLeading(hunk, their, mine); // Now in the overlap content. Scan through and select the best changes from each.

while (mine.index < mine.lines.length && their.index < their.lines.length) {
      var mineCurrent = mine.lines[mine.index],
          theirCurrent = their.lines[their.index];

if ((mineCurrent[0] === '-' || mineCurrent[0] === '+') && (theirCurrent[0] === '-' || theirCurrent[0] === '+')) {
        // Both modified ...
        mutualChange(hunk, mine, their);
      } else if (mineCurrent[0] === '+' && theirCurrent[0] === ' ') {
        var _hunk$lines;

// Mine inserted
        (_hunk$lines = hunk.lines).push.apply(_hunk$lines, _toConsumableArray(collectChange(mine)));
      } else if (theirCurrent[0] === '+' && mineCurrent[0] === ' ') {
        var _hunk$lines2;

// Theirs inserted
        (_hunk$lines2 = hunk.lines).push.apply(_hunk$lines2, _toConsumableArray(collectChange(their)));
      } else if (mineCurrent[0] === '-' && theirCurrent[0] === ' ') {
        // Mine removed or edited
        removal(hunk, mine, their);
      } else if (theirCurrent[0] === '-' && mineCurrent[0] === ' ') {
        // Their removed or edited
        removal(hunk, their, mine, true);
      } else if (mineCurrent === theirCurrent) {
        // Context identity
        hunk.lines.push(mineCurrent);
        mine.index++;
        their.index++;
      } else {
        // Context mismatch
        conflict(hunk, collectChange(mine), collectChange(their));
      }
    } // Now push anything that may be remaining

insertTrailing(hunk, mine);
    insertTrailing(hunk, their);
    calcLineCount(hunk);
  }

function mutualChange(hunk, mine, their) {
    var myChanges = collectChange(mine),
        theirChanges = collectChange(their);

if (allRemoves(myChanges) && allRemoves(theirChanges)) {
      // Special case for remove changes that are supersets of one another
      if (arrayStartsWith(myChanges, theirChanges) && skipRemoveSuperset(their, myChanges, myChanges.length - theirChanges.length)) {
        var _hunk$lines3;

(_hunk$lines3 = hunk.lines).push.apply(_hunk$lines3, _toConsumableArray(myChanges));

return;
      } else if (arrayStartsWith(theirChanges, myChanges) && skipRemoveSuperset(mine, theirChanges, theirChanges.length - myChanges.length)) {
        var _hunk$lines4;

(_hunk$lines4 = hunk.lines).push.apply(_hunk$lines4, _toConsumableArray(theirChanges));

return;
      }
    } else if (arrayEqual(myChanges, theirChanges)) {
      var _hunk$lines5;

(_hunk$lines5 = hunk.lines).push.apply(_hunk$lines5, _toConsumableArray(myChanges));

return;
    }

conflict(hunk, myChanges, theirChanges);
  }

function removal(hunk, mine, their, swap) {
    var myChanges = collectChange(mine),
        theirChanges = collectContext(their, myChanges);

if (theirChanges.merged) {
      var _hunk$lines6;

(_hunk$lines6 = hunk.lines).push.apply(_hunk$lines6, _toConsumableArray(theirChanges.merged));
    } else {
      conflict(hunk, swap ? theirChanges : myChanges, swap ? myChanges : theirChanges);
    }
  }

function conflict(hunk, mine, their) {
    hunk.conflict = true;
    hunk.lines.push({
      conflict: true,
      mine: mine,
      theirs: their
    });
  }

function insertLeading(hunk, insert, their) {
    while (insert.offset < their.offset && insert.index < insert.lines.length) {
      var line = insert.lines[insert.index++];
      hunk.lines.push(line);
      insert.offset++;
    }
  }

function insertTrailing(hunk, insert) {
    while (insert.index < insert.lines.length) {
      var line = insert.lines[insert.index++];
      hunk.lines.push(line);
    }
  }

function collectChange(state) {
    var ret = [],
        operation = state.lines[state.index][0];

while (state.index < state.lines.length) {
      var line = state.lines[state.index]; // Group additions that are immediately after subtractions and treat them as one "atomic" modify change.

if (operation === '-' && line[0] === '+') {
        operation = '+';
      }

if (operation === line[0]) {
        ret.push(line);
        state.index++;
      } else {
        break;
      }
    }

return ret;
  }

function collectContext(state, matchChanges) {
    var changes = [],
        merged = [],
        matchIndex = 0,
        contextChanges = false,
        conflicted = false;

while (matchIndex < matchChanges.length && state.index < state.lines.length) {
      var change = state.lines[state.index],
          match = matchChanges[matchIndex]; // Once we've hit our add, then we are done

if (match[0] === '+') {
        break;
      }

contextChanges = contextChanges || change[0] !== ' ';
      merged.push(match);
      matchIndex++; // Consume any additions in the other block as a conflict to attempt
      // to pull in the remaining context after this

if (change[0] === '+') {
        conflicted = true;

while (change[0] === '+') {
          changes.push(change);
          change = state.lines[++state.index];
        }
      }

if (match.substr(1) === change.substr(1)) {
        changes.push(change);
        state.index++;
      } else {
        conflicted = true;
      }
    }

if ((matchChanges[matchIndex] || '')[0] === '+' && contextChanges) {
      conflicted = true;
    }

if (conflicted) {
      return changes;
    }

while (matchIndex < matchChanges.length) {
      merged.push(matchChanges[matchIndex++]);
    }

return {
      merged: merged,
      changes: changes
    };
  }

function allRemoves(changes) {
    return changes.reduce(function (prev, change) {
      return prev && change[0] === '-';
    }, true);
  }

function skipRemoveSuperset(state, removeChanges, delta) {
    for (var i = 0; i < delta; i++) {
      var changeContent = removeChanges[removeChanges.length - delta + i].substr(1);

if (state.lines[state.index + i] !== ' ' + changeContent) {
        return false;
      }
    }

state.index += delta;
    return true;
  }

function calcOldNewLineCount(lines) {
    var oldLines = 0;
    var newLines = 0;
    lines.forEach(function (line) {
      if (typeof line !== 'string') {
        var myCount = calcOldNewLineCount(line.mine);
        var theirCount = calcOldNewLineCount(line.theirs);

if (oldLines !== undefined) {
          if (myCount.oldLines === theirCount.oldLines) {
            oldLines += myCount.oldLines;
          } else {
            oldLines = undefined;
          }
        }

if (newLines !== undefined) {
          if (myCount.newLines === theirCount.newLines) {
            newLines += myCount.newLines;
          } else {
            newLines = undefined;
          }
        }
      } else {
        if (newLines !== undefined && (line[0] === '+' || line[0] === ' ')) {
          newLines++;
        }

if (oldLines !== undefined && (line[0] === '-' || line[0] === ' ')) {
          oldLines++;
        }
      }
    });
    return {
      oldLines: oldLines,
      newLines: newLines
    };
  }

function reversePatch(structuredPatch) {
    if (Array.isArray(structuredPatch)) {
      return structuredPatch.map(reversePatch).reverse();
    }

return _objectSpread2(_objectSpread2({}, structuredPatch), {}, {
      oldFileName: structuredPatch.newFileName,
      oldHeader: structuredPatch.newHeader,
      newFileName: structuredPatch.oldFileName,
      newHeader: structuredPatch.oldHeader,
      hunks: structuredPatch.hunks.map(function (hunk) {
        return {
          oldLines: hunk.newLines,
          oldStart: hunk.newStart,
          newLines: hunk.oldLines,
          newStart: hunk.oldStart,
          linedelimiters: hunk.linedelimiters,
          lines: hunk.lines.map(function (l) {
            if (l.startsWith('-')) {
              return "+".concat(l.slice(1));
            }

if (l.startsWith('+')) {
              return "-".concat(l.slice(1));
            }

return l;
          })
        };
      })
    });
  }

// See: http://code.google.com/p/google-diff-match-patch/wiki/API
  function convertChangesToDMP(changes) {
    var ret = [],
        change,
        operation;

for (var i = 0; i < changes.length; i++) {
      change = changes[i];

if (change.added) {
        operation = 1;
      } else if (change.removed) {
        operation = -1;
      } else {
        operation = 0;
      }

ret.push([operation, change.value]);
    }

return ret;
  }

function convertChangesToXML(changes) {
    var ret = [];

for (var i = 0; i < changes.length; i++) {
      var change = changes[i];

if (change.added) {
        ret.push('<ins>');
      } else if (change.removed) {
        ret.push('<del>');
      }

ret.push(escapeHTML(change.value));

if (change.added) {
        ret.push('</ins>');
      } else if (change.removed) {
        ret.push('</del>');
      }
    }

return ret.join('');
  }

function escapeHTML(s) {
    var n = s;
    n = n.replace(/&/g, '&amp;');
    n = n.replace(/</g, '&lt;');
    n = n.replace(/>/g, '&gt;');
    n = n.replace(/"/g, '&quot;');
    return n;
  }

exports.Diff = Diff;
  exports.applyPatch = applyPatch;
  exports.applyPatches = applyPatches;
  exports.canonicalize = canonicalize;
  exports.convertChangesToDMP = convertChangesToDMP;
  exports.convertChangesToXML = convertChangesToXML;
  exports.createPatch = createPatch;
  exports.createTwoFilesPatch = createTwoFilesPatch;
  exports.diffArrays = diffArrays;
  exports.diffChars = diffChars;
  exports.diffCss = diffCss;
  exports.diffJson = diffJson;
  exports.diffLines = diffLines;
  exports.diffSentences = diffSentences;
  exports.diffTrimmedLines = diffTrimmedLines;
  exports.diffWords = diffWords;
  exports.diffWordsWithSpace = diffWordsWithSpace;
  exports.formatPatch = formatPatch;
  exports.merge = merge;
  exports.parsePatch = parsePatch;
  exports.reversePatch = reversePatch;
  exports.structuredPatch = structuredPatch;

Object.defineProperty(exports, '__esModule', { value: true });

})));

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