lib/diff/base.js

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

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = Diff;

/*istanbul ignore end*/
function Diff() {}

Diff.prototype = {
  /*istanbul ignore start*/

  /*istanbul ignore end*/
  diff: function diff(oldString, newString) {
    /*istanbul ignore start*/
    var _options$timeout;

    var
    /*istanbul ignore end*/
    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;

    function done(value) {
      if (callback) {
        setTimeout(function () {
          callback(undefined, value);
        }, 0);
        return true;
      } else {
        return value;
      }
    } // Allow subclasses to massage the input prior to running


    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 =
    /*istanbul ignore start*/
    (_options$timeout =
    /*istanbul ignore end*/
    options.timeout) !== null && _options$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 =
        /*istanbul ignore start*/
        void 0
        /*istanbul ignore end*/
        ;
        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;
        }
      }
    }
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  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
        }
      };
    }
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  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;
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  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();
    }
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  removeEmpty: function removeEmpty(array) {
    var ret = [];

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

    return ret;
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  castInput: function castInput(value) {
    return value;
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  tokenize: function tokenize(value) {
    return value.split('');
  },

  /*istanbul ignore start*/

  /*istanbul ignore end*/
  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;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["../../src/diff/base.js"],"names":["Diff","prototype","diff","oldString","newString","options","callback","self","done","value","setTimeout","undefined","castInput","removeEmpty","tokenize","newLen","length","oldLen","editLength","maxEditLength","Math","min","maxExecutionTime","timeout","Infinity","abortAfterTimestamp","Date","now","bestPath","oldPos","lastComponent","newPos","extractCommon","join","count","minDiagonalToConsider","maxDiagonalToConsider","execEditLength","diagonalPath","max","basePath","removePath","addPath","canAdd","addPathNewPos","canRemove","addToPath","buildValues","useLongestToken","exec","ret","path","added","removed","oldPosInc","last","previousComponent","commonCount","equals","left","right","comparator","ignoreCase","toLowerCase","array","i","push","split","chars","components","nextComponent","reverse","componentPos","componentLen","component","slice","map","oldValue","tmp","finalComponent","pop"],"mappings":";;;;;;;;;AAAe,SAASA,IAAT,GAAgB,CAAE;;AAEjCA,IAAI,CAACC,SAAL,GAAiB;AAAA;;AAAA;AACfC,EAAAA,IADe,gBACVC,SADU,EACCC,SADD,EAC0B;AAAA;AAAA;;AAAA;AAAA;AAAdC,IAAAA,OAAc,uEAAJ,EAAI;AACvC,QAAIC,QAAQ,GAAGD,OAAO,CAACC,QAAvB;;AACA,QAAI,OAAOD,OAAP,KAAmB,UAAvB,EAAmC;AACjCC,MAAAA,QAAQ,GAAGD,OAAX;AACAA,MAAAA,OAAO,GAAG,EAAV;AACD;;AACD,SAAKA,OAAL,GAAeA,OAAf;AAEA,QAAIE,IAAI,GAAG,IAAX;;AAEA,aAASC,IAAT,CAAcC,KAAd,EAAqB;AACnB,UAAIH,QAAJ,EAAc;AACZI,QAAAA,UAAU,CAAC,YAAW;AAAEJ,UAAAA,QAAQ,CAACK,SAAD,EAAYF,KAAZ,CAAR;AAA6B,SAA3C,EAA6C,CAA7C,CAAV;AACA,eAAO,IAAP;AACD,OAHD,MAGO;AACL,eAAOA,KAAP;AACD;AACF,KAjBsC,CAmBvC;;;AACAN,IAAAA,SAAS,GAAG,KAAKS,SAAL,CAAeT,SAAf,CAAZ;AACAC,IAAAA,SAAS,GAAG,KAAKQ,SAAL,CAAeR,SAAf,CAAZ;AAEAD,IAAAA,SAAS,GAAG,KAAKU,WAAL,CAAiB,KAAKC,QAAL,CAAcX,SAAd,CAAjB,CAAZ;AACAC,IAAAA,SAAS,GAAG,KAAKS,WAAL,CAAiB,KAAKC,QAAL,CAAcV,SAAd,CAAjB,CAAZ;AAEA,QAAIW,MAAM,GAAGX,SAAS,CAACY,MAAvB;AAAA,QAA+BC,MAAM,GAAGd,SAAS,CAACa,MAAlD;AACA,QAAIE,UAAU,GAAG,CAAjB;AACA,QAAIC,aAAa,GAAGJ,MAAM,GAAGE,MAA7B;;AACA,QAAGZ,OAAO,CAACc,aAAX,EAA0B;AACxBA,MAAAA,aAAa,GAAGC,IAAI,CAACC,GAAL,CAASF,aAAT,EAAwBd,OAAO,CAACc,aAAhC,CAAhB;AACD;;AACD,QAAMG,gBAAgB;AAAA;AAAA;AAAA;AAAGjB,IAAAA,OAAO,CAACkB,OAAX,+DAAsBC,QAA5C;AACA,QAAMC,mBAAmB,GAAGC,IAAI,CAACC,GAAL,KAAaL,gBAAzC;AAEA,QAAIM,QAAQ,GAAG,CAAC;AAAEC,MAAAA,MAAM,EAAE,CAAC,CAAX;AAAcC,MAAAA,aAAa,EAAEnB;AAA7B,KAAD,CAAf,CAnCuC,CAqCvC;;AACA,QAAIoB,MAAM,GAAG,KAAKC,aAAL,CAAmBJ,QAAQ,CAAC,CAAD,CAA3B,EAAgCxB,SAAhC,EAA2CD,SAA3C,EAAsD,CAAtD,CAAb;;AACA,QAAIyB,QAAQ,CAAC,CAAD,CAAR,CAAYC,MAAZ,GAAqB,CAArB,IAA0BZ,MAA1B,IAAoCc,MAAM,GAAG,CAAT,IAAchB,MAAtD,EAA8D;AAC5D;AACA,aAAOP,IAAI,CAAC,CAAC;AAACC,QAAAA,KAAK,EAAE,KAAKwB,IAAL,CAAU7B,SAAV,CAAR;AAA8B8B,QAAAA,KAAK,EAAE9B,SAAS,CAACY;AAA/C,OAAD,CAAD,CAAX;AACD,KA1CsC,CA4CvC;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;;;AACA,QAAImB,qBAAqB,GAAG,CAACX,QAA7B;AAAA,QAAuCY,qBAAqB,GAAGZ,QAA/D,CA7DuC,CA+DvC;;AACA,aAASa,cAAT,GAA0B;AACxB,WACE,IAAIC,YAAY,GAAGlB,IAAI,CAACmB,GAAL,CAASJ,qBAAT,EAAgC,CAACjB,UAAjC,CADrB,EAEEoB,YAAY,IAAIlB,IAAI,CAACC,GAAL,CAASe,qBAAT,EAAgClB,UAAhC,CAFlB,EAGEoB,YAAY,IAAI,CAHlB,EAIE;AACA,YAAIE,QAAQ;AAAA;AAAA;AAAZ;AAAA;AACA,YAAIC,UAAU,GAAGb,QAAQ,CAACU,YAAY,GAAG,CAAhB,CAAzB;AAAA,YACII,OAAO,GAAGd,QAAQ,CAACU,YAAY,GAAG,CAAhB,CADtB;;AAEA,YAAIG,UAAJ,EAAgB;AACd;AACAb,UAAAA,QAAQ,CAACU,YAAY,GAAG,CAAhB,CAAR,GAA6B3B,SAA7B;AACD;;AAED,YAAIgC,MAAM,GAAG,KAAb;;AACA,YAAID,OAAJ,EAAa;AACX;AACA,cAAME,aAAa,GAAGF,OAAO,CAACb,MAAR,GAAiBS,YAAvC;AACAK,UAAAA,MAAM,GAAGD,OAAO,IAAI,KAAKE,aAAhB,IAAiCA,aAAa,GAAG7B,MAA1D;AACD;;AAED,YAAI8B,SAAS,GAAGJ,UAAU,IAAIA,UAAU,CAACZ,MAAX,GAAoB,CAApB,GAAwBZ,MAAtD;;AACA,YAAI,CAAC0B,MAAD,IAAW,CAACE,SAAhB,EAA2B;AACzB;AACAjB,UAAAA,QAAQ,CAACU,YAAD,CAAR,GAAyB3B,SAAzB;AACA;AACD,SArBD,CAuBA;AACA;AACA;AACA;AACA;;;AACA,YAAI,CAACkC,SAAD,IAAeF,MAAM,IAAIF,UAAU,CAACZ,MAAX,GAAoB,CAApB,GAAwBa,OAAO,CAACb,MAA7D,EAAsE;AACpEW,UAAAA,QAAQ,GAAGjC,IAAI,CAACuC,SAAL,CAAeJ,OAAf,EAAwB,IAAxB,EAA8B/B,SAA9B,EAAyC,CAAzC,CAAX;AACD,SAFD,MAEO;AACL6B,UAAAA,QAAQ,GAAGjC,IAAI,CAACuC,SAAL,CAAeL,UAAf,EAA2B9B,SAA3B,EAAsC,IAAtC,EAA4C,CAA5C,CAAX;AACD;;AAEDoB,QAAAA,MAAM,GAAGxB,IAAI,CAACyB,aAAL,CAAmBQ,QAAnB,EAA6BpC,SAA7B,EAAwCD,SAAxC,EAAmDmC,YAAnD,CAAT;;AAEA,YAAIE,QAAQ,CAACX,MAAT,GAAkB,CAAlB,IAAuBZ,MAAvB,IAAiCc,MAAM,GAAG,CAAT,IAAchB,MAAnD,EAA2D;AACzD;AACA,iBAAOP,IAAI,CAACuC,WAAW,CAACxC,IAAD,EAAOiC,QAAQ,CAACV,aAAhB,EAA+B1B,SAA/B,EAA0CD,SAA1C,EAAqDI,IAAI,CAACyC,eAA1D,CAAZ,CAAX;AACD,SAHD,MAGO;AACLpB,UAAAA,QAAQ,CAACU,YAAD,CAAR,GAAyBE,QAAzB;;AACA,cAAIA,QAAQ,CAACX,MAAT,GAAkB,CAAlB,IAAuBZ,MAA3B,EAAmC;AACjCmB,YAAAA,qBAAqB,GAAGhB,IAAI,CAACC,GAAL,CAASe,qBAAT,EAAgCE,YAAY,GAAG,CAA/C,CAAxB;AACD;;AACD,cAAIP,MAAM,GAAG,CAAT,IAAchB,MAAlB,EAA0B;AACxBoB,YAAAA,qBAAqB,GAAGf,IAAI,CAACmB,GAAL,CAASJ,qBAAT,EAAgCG,YAAY,GAAG,CAA/C,CAAxB;AACD;AACF;AACF;;AAEDpB,MAAAA,UAAU;AACX,KAxHsC,CA0HvC;AACA;AACA;AACA;;;AACA,QAAIZ,QAAJ,EAAc;AACX,gBAAS2C,IAAT,GAAgB;AACfvC,QAAAA,UAAU,CAAC,YAAW;AACpB,cAAIQ,UAAU,GAAGC,aAAb,IAA8BO,IAAI,CAACC,GAAL,KAAaF,mBAA/C,EAAoE;AAClE,mBAAOnB,QAAQ,EAAf;AACD;;AAED,cAAI,CAAC+B,cAAc,EAAnB,EAAuB;AACrBY,YAAAA,IAAI;AACL;AACF,SARS,EAQP,CARO,CAAV;AASD,OAVA,GAAD;AAWD,KAZD,MAYO;AACL,aAAO/B,UAAU,IAAIC,aAAd,IAA+BO,IAAI,CAACC,GAAL,MAAcF,mBAApD,EAAyE;AACvE,YAAIyB,GAAG,GAAGb,cAAc,EAAxB;;AACA,YAAIa,GAAJ,EAAS;AACP,iBAAOA,GAAP;AACD;AACF;AACF;AACF,GAnJc;;AAAA;;AAAA;AAqJfJ,EAAAA,SArJe,qBAqJLK,IArJK,EAqJCC,KArJD,EAqJQC,OArJR,EAqJiBC,SArJjB,EAqJ4B;AACzC,QAAIC,IAAI,GAAGJ,IAAI,CAACrB,aAAhB;;AACA,QAAIyB,IAAI,IAAIA,IAAI,CAACH,KAAL,KAAeA,KAAvB,IAAgCG,IAAI,CAACF,OAAL,KAAiBA,OAArD,EAA8D;AAC5D,aAAO;AACLxB,QAAAA,MAAM,EAAEsB,IAAI,CAACtB,MAAL,GAAcyB,SADjB;AAELxB,QAAAA,aAAa,EAAE;AAACI,UAAAA,KAAK,EAAEqB,IAAI,CAACrB,KAAL,GAAa,CAArB;AAAwBkB,UAAAA,KAAK,EAAEA,KAA/B;AAAsCC,UAAAA,OAAO,EAAEA,OAA/C;AAAwDG,UAAAA,iBAAiB,EAAED,IAAI,CAACC;AAAhF;AAFV,OAAP;AAID,KALD,MAKO;AACL,aAAO;AACL3B,QAAAA,MAAM,EAAEsB,IAAI,CAACtB,MAAL,GAAcyB,SADjB;AAELxB,QAAAA,aAAa,EAAE;AAACI,UAAAA,KAAK,EAAE,CAAR;AAAWkB,UAAAA,KAAK,EAAEA,KAAlB;AAAyBC,UAAAA,OAAO,EAAEA,OAAlC;AAA2CG,UAAAA,iBAAiB,EAAED;AAA9D;AAFV,OAAP;AAID;AACF,GAlKc;;AAAA;;AAAA;AAmKfvB,EAAAA,aAnKe,yBAmKDQ,QAnKC,EAmKSpC,SAnKT,EAmKoBD,SAnKpB,EAmK+BmC,YAnK/B,EAmK6C;AAC1D,QAAIvB,MAAM,GAAGX,SAAS,CAACY,MAAvB;AAAA,QACIC,MAAM,GAAGd,SAAS,CAACa,MADvB;AAAA,QAEIa,MAAM,GAAGW,QAAQ,CAACX,MAFtB;AAAA,QAGIE,MAAM,GAAGF,MAAM,GAAGS,YAHtB;AAAA,QAKImB,WAAW,GAAG,CALlB;;AAMA,WAAO1B,MAAM,GAAG,CAAT,GAAahB,MAAb,IAAuBc,MAAM,GAAG,CAAT,GAAaZ,MAApC,IAA8C,KAAKyC,MAAL,CAAYtD,SAAS,CAAC2B,MAAM,GAAG,CAAV,CAArB,EAAmC5B,SAAS,CAAC0B,MAAM,GAAG,CAAV,CAA5C,CAArD,EAAgH;AAC9GE,MAAAA,MAAM;AACNF,MAAAA,MAAM;AACN4B,MAAAA,WAAW;AACZ;;AAED,QAAIA,WAAJ,EAAiB;AACfjB,MAAAA,QAAQ,CAACV,aAAT,GAAyB;AAACI,QAAAA,KAAK,EAAEuB,WAAR;AAAqBD,QAAAA,iBAAiB,EAAEhB,QAAQ,CAACV;AAAjD,OAAzB;AACD;;AAEDU,IAAAA,QAAQ,CAACX,MAAT,GAAkBA,MAAlB;AACA,WAAOE,MAAP;AACD,GAtLc;;AAAA;;AAAA;AAwLf2B,EAAAA,MAxLe,kBAwLRC,IAxLQ,EAwLFC,KAxLE,EAwLK;AAClB,QAAI,KAAKvD,OAAL,CAAawD,UAAjB,EAA6B;AAC3B,aAAO,KAAKxD,OAAL,CAAawD,UAAb,CAAwBF,IAAxB,EAA8BC,KAA9B,CAAP;AACD,KAFD,MAEO;AACL,aAAOD,IAAI,KAAKC,KAAT,IACD,KAAKvD,OAAL,CAAayD,UAAb,IAA2BH,IAAI,CAACI,WAAL,OAAuBH,KAAK,CAACG,WAAN,EADxD;AAED;AACF,GA/Lc;;AAAA;;AAAA;AAgMflD,EAAAA,WAhMe,uBAgMHmD,KAhMG,EAgMI;AACjB,QAAId,GAAG,GAAG,EAAV;;AACA,SAAK,IAAIe,CAAC,GAAG,CAAb,EAAgBA,CAAC,GAAGD,KAAK,CAAChD,MAA1B,EAAkCiD,CAAC,EAAnC,EAAuC;AACrC,UAAID,KAAK,CAACC,CAAD,CAAT,EAAc;AACZf,QAAAA,GAAG,CAACgB,IAAJ,CAASF,KAAK,CAACC,CAAD,CAAd;AACD;AACF;;AACD,WAAOf,GAAP;AACD,GAxMc;;AAAA;;AAAA;AAyMftC,EAAAA,SAzMe,qBAyMLH,KAzMK,EAyME;AACf,WAAOA,KAAP;AACD,GA3Mc;;AAAA;;AAAA;AA4MfK,EAAAA,QA5Me,oBA4MNL,KA5MM,EA4MC;AACd,WAAOA,KAAK,CAAC0D,KAAN,CAAY,EAAZ,CAAP;AACD,GA9Mc;;AAAA;;AAAA;AA+MflC,EAAAA,IA/Me,gBA+MVmC,KA/MU,EA+MH;AACV,WAAOA,KAAK,CAACnC,IAAN,CAAW,EAAX,CAAP;AACD;AAjNc,CAAjB;;AAoNA,SAASc,WAAT,CAAqB7C,IAArB,EAA2B4B,aAA3B,EAA0C1B,SAA1C,EAAqDD,SAArD,EAAgE6C,eAAhE,EAAiF;AAC/E;AACA;AACA,MAAMqB,UAAU,GAAG,EAAnB;AACA,MAAIC,aAAJ;;AACA,SAAOxC,aAAP,EAAsB;AACpBuC,IAAAA,UAAU,CAACH,IAAX,CAAgBpC,aAAhB;AACAwC,IAAAA,aAAa,GAAGxC,aAAa,CAAC0B,iBAA9B;AACA,WAAO1B,aAAa,CAAC0B,iBAArB;AACA1B,IAAAA,aAAa,GAAGwC,aAAhB;AACD;;AACDD,EAAAA,UAAU,CAACE,OAAX;AAEA,MAAIC,YAAY,GAAG,CAAnB;AAAA,MACIC,YAAY,GAAGJ,UAAU,CAACrD,MAD9B;AAAA,MAEIe,MAAM,GAAG,CAFb;AAAA,MAGIF,MAAM,GAAG,CAHb;;AAKA,SAAO2C,YAAY,GAAGC,YAAtB,EAAoCD,YAAY,EAAhD,EAAoD;AAClD,QAAIE,SAAS,GAAGL,UAAU,CAACG,YAAD,CAA1B;;AACA,QAAI,CAACE,SAAS,CAACrB,OAAf,EAAwB;AACtB,UAAI,CAACqB,SAAS,CAACtB,KAAX,IAAoBJ,eAAxB,EAAyC;AACvC,YAAIvC,KAAK,GAAGL,SAAS,CAACuE,KAAV,CAAgB5C,MAAhB,EAAwBA,MAAM,GAAG2C,SAAS,CAACxC,KAA3C,CAAZ;AACAzB,QAAAA,KAAK,GAAGA,KAAK,CAACmE,GAAN,CAAU,UAASnE,KAAT,EAAgBwD,CAAhB,EAAmB;AACnC,cAAIY,QAAQ,GAAG1E,SAAS,CAAC0B,MAAM,GAAGoC,CAAV,CAAxB;AACA,iBAAOY,QAAQ,CAAC7D,MAAT,GAAkBP,KAAK,CAACO,MAAxB,GAAiC6D,QAAjC,GAA4CpE,KAAnD;AACD,SAHO,CAAR;AAKAiE,QAAAA,SAAS,CAACjE,KAAV,GAAkBP,IAAI,CAAC+B,IAAL,CAAUxB,KAAV,CAAlB;AACD,OARD,MAQO;AACLiE,QAAAA,SAAS,CAACjE,KAAV,GAAkBP,IAAI,CAAC+B,IAAL,CAAU7B,SAAS,CAACuE,KAAV,CAAgB5C,MAAhB,EAAwBA,MAAM,GAAG2C,SAAS,CAACxC,KAA3C,CAAV,CAAlB;AACD;;AACDH,MAAAA,MAAM,IAAI2C,SAAS,CAACxC,KAApB,CAZsB,CActB;;AACA,UAAI,CAACwC,SAAS,CAACtB,KAAf,EAAsB;AACpBvB,QAAAA,MAAM,IAAI6C,SAAS,CAACxC,KAApB;AACD;AACF,KAlBD,MAkBO;AACLwC,MAAAA,SAAS,CAACjE,KAAV,GAAkBP,IAAI,CAAC+B,IAAL,CAAU9B,SAAS,CAACwE,KAAV,CAAgB9C,MAAhB,EAAwBA,MAAM,GAAG6C,SAAS,CAACxC,KAA3C,CAAV,CAAlB;AACAL,MAAAA,MAAM,IAAI6C,SAAS,CAACxC,KAApB,CAFK,CAIL;AACA;AACA;;AACA,UAAIsC,YAAY,IAAIH,UAAU,CAACG,YAAY,GAAG,CAAhB,CAAV,CAA6BpB,KAAjD,EAAwD;AACtD,YAAI0B,GAAG,GAAGT,UAAU,CAACG,YAAY,GAAG,CAAhB,CAApB;AACAH,QAAAA,UAAU,CAACG,YAAY,GAAG,CAAhB,CAAV,GAA+BH,UAAU,CAACG,YAAD,CAAzC;AACAH,QAAAA,UAAU,CAACG,YAAD,CAAV,GAA2BM,GAA3B;AACD;AACF;AACF,GAnD8E,CAqD/E;AACA;AACA;;;AACA,MAAIC,cAAc,GAAGV,UAAU,CAACI,YAAY,GAAG,CAAhB,CAA/B;;AACA,MAAIA,YAAY,GAAG,CAAf,IACG,OAAOM,cAAc,CAACtE,KAAtB,KAAgC,QADnC,KAEIsE,cAAc,CAAC3B,KAAf,IAAwB2B,cAAc,CAAC1B,OAF3C,KAGGnD,IAAI,CAACwD,MAAL,CAAY,EAAZ,EAAgBqB,cAAc,CAACtE,KAA/B,CAHP,EAG8C;AAC5C4D,IAAAA,UAAU,CAACI,YAAY,GAAG,CAAhB,CAAV,CAA6BhE,KAA7B,IAAsCsE,cAAc,CAACtE,KAArD;AACA4D,IAAAA,UAAU,CAACW,GAAX;AACD;;AAED,SAAOX,UAAP;AACD","sourcesContent":["export default function Diff() {}\n\nDiff.prototype = {\n  diff(oldString, newString, options = {}) {\n    let callback = options.callback;\n    if (typeof options === 'function') {\n      callback = options;\n      options = {};\n    }\n    this.options = options;\n\n    let self = this;\n\n    function done(value) {\n      if (callback) {\n        setTimeout(function() { callback(undefined, value); }, 0);\n        return true;\n      } else {\n        return value;\n      }\n    }\n\n    // Allow subclasses to massage the input prior to running\n    oldString = this.castInput(oldString);\n    newString = this.castInput(newString);\n\n    oldString = this.removeEmpty(this.tokenize(oldString));\n    newString = this.removeEmpty(this.tokenize(newString));\n\n    let newLen = newString.length, oldLen = oldString.length;\n    let editLength = 1;\n    let maxEditLength = newLen + oldLen;\n    if(options.maxEditLength) {\n      maxEditLength = Math.min(maxEditLength, options.maxEditLength);\n    }\n    const maxExecutionTime = options.timeout ?? Infinity;\n    const abortAfterTimestamp = Date.now() + maxExecutionTime;\n\n    let bestPath = [{ oldPos: -1, lastComponent: undefined }];\n\n    // Seed editLength = 0, i.e. the content starts with the same values\n    let newPos = this.extractCommon(bestPath[0], newString, oldString, 0);\n    if (bestPath[0].oldPos + 1 >= oldLen && newPos + 1 >= newLen) {\n      // Identity per the equality and tokenizer\n      return done([{value: this.join(newString), count: newString.length}]);\n    }\n\n    // Once we hit the right edge of the edit graph on some diagonal k, we can\n    // definitely reach the end of the edit graph in no more than k edits, so\n    // there's no point in considering any moves to diagonal k+1 any more (from\n    // which we're guaranteed to need at least k+1 more edits).\n    // Similarly, once we've reached the bottom of the edit graph, there's no\n    // point considering moves to lower diagonals.\n    // We record this fact by setting minDiagonalToConsider and\n    // maxDiagonalToConsider to some finite value once we've hit the edge of\n    // the edit graph.\n    // This optimization is not faithful to the original algorithm presented in\n    // Myers's paper, which instead pointlessly extends D-paths off the end of\n    // the edit graph - see page 7 of Myers's paper which notes this point\n    // explicitly and illustrates it with a diagram. This has major performance\n    // implications for some common scenarios. For instance, to compute a diff\n    // where the new text simply appends d characters on the end of the\n    // original text of length n, the true Myers algorithm will take O(n+d^2)\n    // time while this optimization needs only O(n+d) time.\n    let minDiagonalToConsider = -Infinity, maxDiagonalToConsider = Infinity;\n\n    // Main worker method. checks all permutations of a given edit length for acceptance.\n    function execEditLength() {\n      for (\n        let diagonalPath = Math.max(minDiagonalToConsider, -editLength);\n        diagonalPath <= Math.min(maxDiagonalToConsider, editLength);\n        diagonalPath += 2\n      ) {\n        let basePath;\n        let removePath = bestPath[diagonalPath - 1],\n            addPath = bestPath[diagonalPath + 1];\n        if (removePath) {\n          // No one else is going to attempt to use this value, clear it\n          bestPath[diagonalPath - 1] = undefined;\n        }\n\n        let canAdd = false;\n        if (addPath) {\n          // what newPos will be after we do an insertion:\n          const addPathNewPos = addPath.oldPos - diagonalPath;\n          canAdd = addPath && 0 <= addPathNewPos && addPathNewPos < newLen;\n        }\n\n        let canRemove = removePath && removePath.oldPos + 1 < oldLen;\n        if (!canAdd && !canRemove) {\n          // If this path is a terminal then prune\n          bestPath[diagonalPath] = undefined;\n          continue;\n        }\n\n        // Select the diagonal that we want to branch from. We select the prior\n        // path whose position in the old string is the farthest from the origin\n        // and does not pass the bounds of the diff graph\n        // TODO: Remove the `+ 1` here to make behavior match Myers algorithm\n        //       and prefer to order removals before insertions.\n        if (!canRemove || (canAdd && removePath.oldPos + 1 < addPath.oldPos)) {\n          basePath = self.addToPath(addPath, true, undefined, 0);\n        } else {\n          basePath = self.addToPath(removePath, undefined, true, 1);\n        }\n\n        newPos = self.extractCommon(basePath, newString, oldString, diagonalPath);\n\n        if (basePath.oldPos + 1 >= oldLen && newPos + 1 >= newLen) {\n          // If we have hit the end of both strings, then we are done\n          return done(buildValues(self, basePath.lastComponent, newString, oldString, self.useLongestToken));\n        } else {\n          bestPath[diagonalPath] = basePath;\n          if (basePath.oldPos + 1 >= oldLen) {\n            maxDiagonalToConsider = Math.min(maxDiagonalToConsider, diagonalPath - 1);\n          }\n          if (newPos + 1 >= newLen) {\n            minDiagonalToConsider = Math.max(minDiagonalToConsider, diagonalPath + 1);\n          }\n        }\n      }\n\n      editLength++;\n    }\n\n    // Performs the length of edit iteration. Is a bit fugly as this has to support the\n    // sync and async mode which is never fun. Loops over execEditLength until a value\n    // is produced, or until the edit length exceeds options.maxEditLength (if given),\n    // in which case it will return undefined.\n    if (callback) {\n      (function exec() {\n        setTimeout(function() {\n          if (editLength > maxEditLength || Date.now() > abortAfterTimestamp) {\n            return callback();\n          }\n\n          if (!execEditLength()) {\n            exec();\n          }\n        }, 0);\n      }());\n    } else {\n      while (editLength <= maxEditLength && Date.now() <= abortAfterTimestamp) {\n        let ret = execEditLength();\n        if (ret) {\n          return ret;\n        }\n      }\n    }\n  },\n\n  addToPath(path, added, removed, oldPosInc) {\n    let last = path.lastComponent;\n    if (last && last.added === added && last.removed === removed) {\n      return {\n        oldPos: path.oldPos + oldPosInc,\n        lastComponent: {count: last.count + 1, added: added, removed: removed, previousComponent: last.previousComponent }\n      };\n    } else {\n      return {\n        oldPos: path.oldPos + oldPosInc,\n        lastComponent: {count: 1, added: added, removed: removed, previousComponent: last }\n      };\n    }\n  },\n  extractCommon(basePath, newString, oldString, diagonalPath) {\n    let newLen = newString.length,\n        oldLen = oldString.length,\n        oldPos = basePath.oldPos,\n        newPos = oldPos - diagonalPath,\n\n        commonCount = 0;\n    while (newPos + 1 < newLen && oldPos + 1 < oldLen && this.equals(newString[newPos + 1], oldString[oldPos + 1])) {\n      newPos++;\n      oldPos++;\n      commonCount++;\n    }\n\n    if (commonCount) {\n      basePath.lastComponent = {count: commonCount, previousComponent: basePath.lastComponent};\n    }\n\n    basePath.oldPos = oldPos;\n    return newPos;\n  },\n\n  equals(left, right) {\n    if (this.options.comparator) {\n      return this.options.comparator(left, right);\n    } else {\n      return left === right\n        || (this.options.ignoreCase && left.toLowerCase() === right.toLowerCase());\n    }\n  },\n  removeEmpty(array) {\n    let ret = [];\n    for (let i = 0; i < array.length; i++) {\n      if (array[i]) {\n        ret.push(array[i]);\n      }\n    }\n    return ret;\n  },\n  castInput(value) {\n    return value;\n  },\n  tokenize(value) {\n    return value.split('');\n  },\n  join(chars) {\n    return chars.join('');\n  }\n};\n\nfunction buildValues(diff, lastComponent, newString, oldString, useLongestToken) {\n  // First we convert our linked list of components in reverse order to an\n  // array in the right order:\n  const components = [];\n  let nextComponent;\n  while (lastComponent) {\n    components.push(lastComponent);\n    nextComponent = lastComponent.previousComponent;\n    delete lastComponent.previousComponent;\n    lastComponent = nextComponent;\n  }\n  components.reverse();\n\n  let componentPos = 0,\n      componentLen = components.length,\n      newPos = 0,\n      oldPos = 0;\n\n  for (; componentPos < componentLen; componentPos++) {\n    let component = components[componentPos];\n    if (!component.removed) {\n      if (!component.added && useLongestToken) {\n        let value = newString.slice(newPos, newPos + component.count);\n        value = value.map(function(value, i) {\n          let oldValue = oldString[oldPos + i];\n          return oldValue.length > value.length ? oldValue : value;\n        });\n\n        component.value = diff.join(value);\n      } else {\n        component.value = diff.join(newString.slice(newPos, newPos + component.count));\n      }\n      newPos += component.count;\n\n      // Common case\n      if (!component.added) {\n        oldPos += component.count;\n      }\n    } else {\n      component.value = diff.join(oldString.slice(oldPos, oldPos + component.count));\n      oldPos += component.count;\n\n      // Reverse add and remove so removes are output first to match common convention\n      // The diffing algorithm is tied to add then remove output and this is the simplest\n      // route to get the desired output with minimal overhead.\n      if (componentPos && components[componentPos - 1].added) {\n        let tmp = components[componentPos - 1];\n        components[componentPos - 1] = components[componentPos];\n        components[componentPos] = tmp;\n      }\n    }\n  }\n\n  // Special case handle for when one terminal is ignored (i.e. whitespace).\n  // For this case we merge the terminal into the prior string and drop the change.\n  // This is only available for string mode.\n  let finalComponent = components[componentLen - 1];\n  if (componentLen > 1\n      && typeof finalComponent.value === 'string'\n      && (finalComponent.added || finalComponent.removed)\n      && diff.equals('', finalComponent.value)) {\n    components[componentLen - 2].value += finalComponent.value;\n    components.pop();\n  }\n\n  return components;\n}\n"]}