@dagrejs/graphlib
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A directed and undirected multi-graph library
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JavaScript
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.graphlib = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/**
* Copyright (c) 2014, Chris Pettitt
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
var lib = require("./lib");
module.exports = {
Graph: lib.Graph,
json: require("./lib/json"),
alg: require("./lib/alg"),
version: lib.version
};
},{"./lib":17,"./lib/alg":8,"./lib/json":18}],2:[function(require,module,exports){
var _ = require("../lodash");
module.exports = components;
function components(g) {
var visited = {},
cmpts = [],
cmpt;
function dfs(v) {
if (_.has(visited, v)) return;
visited[v] = true;
cmpt.push(v);
_.each(g.successors(v), dfs);
_.each(g.predecessors(v), dfs);
}
_.each(g.nodes(), function(v) {
cmpt = [];
dfs(v);
if (cmpt.length) {
cmpts.push(cmpt);
}
});
return cmpts;
}
},{"../lodash":19}],3:[function(require,module,exports){
var _ = require("../lodash");
module.exports = dfs;
/*
* A helper that preforms a pre- or post-order traversal on the input graph
* and returns the nodes in the order they were visited. If the graph is
* undirected then this algorithm will navigate using neighbors. If the graph
* is directed then this algorithm will navigate using successors.
*
* Order must be one of "pre" or "post".
*/
function dfs(g, vs, order) {
if (!_.isArray(vs)) {
vs = [vs];
}
var navigation = (g.isDirected() ? g.successors : g.neighbors).bind(g);
var acc = [],
visited = {};
_.each(vs, function(v) {
if (!g.hasNode(v)) {
throw new Error("Graph does not have node: " + v);
}
doDfs(g, v, order === "post", visited, navigation, acc);
});
return acc;
}
function doDfs(g, v, postorder, visited, navigation, acc) {
if (!_.has(visited, v)) {
visited[v] = true;
if (!postorder) { acc.push(v); }
_.each(navigation(v), function(w) {
doDfs(g, w, postorder, visited, navigation, acc);
});
if (postorder) { acc.push(v); }
}
}
},{"../lodash":19}],4:[function(require,module,exports){
var dijkstra = require("./dijkstra"),
_ = require("../lodash");
module.exports = dijkstraAll;
function dijkstraAll(g, weightFunc, edgeFunc) {
return _.transform(g.nodes(), function(acc, v) {
acc[v] = dijkstra(g, v, weightFunc, edgeFunc);
}, {});
}
},{"../lodash":19,"./dijkstra":5}],5:[function(require,module,exports){
var _ = require("../lodash"),
PriorityQueue = require("../data/priority-queue");
module.exports = dijkstra;
var DEFAULT_WEIGHT_FUNC = _.constant(1);
function dijkstra(g, source, weightFn, edgeFn) {
return runDijkstra(g, String(source),
weightFn || DEFAULT_WEIGHT_FUNC,
edgeFn || function(v) { return g.outEdges(v); });
}
function runDijkstra(g, source, weightFn, edgeFn) {
var results = {},
pq = new PriorityQueue(),
v, vEntry;
var updateNeighbors = function(edge) {
var w = edge.v !== v ? edge.v : edge.w,
wEntry = results[w],
weight = weightFn(edge),
distance = vEntry.distance + weight;
if (weight < 0) {
throw new Error("dijkstra does not allow negative edge weights. " +
"Bad edge: " + edge + " Weight: " + weight);
}
if (distance < wEntry.distance) {
wEntry.distance = distance;
wEntry.predecessor = v;
pq.decrease(w, distance);
}
};
g.nodes().forEach(function(v) {
var distance = v === source ? 0 : Number.POSITIVE_INFINITY;
results[v] = { distance: distance };
pq.add(v, distance);
});
while (pq.size() > 0) {
v = pq.removeMin();
vEntry = results[v];
if (vEntry.distance === Number.POSITIVE_INFINITY) {
break;
}
edgeFn(v).forEach(updateNeighbors);
}
return results;
}
},{"../data/priority-queue":15,"../lodash":19}],6:[function(require,module,exports){
var _ = require("../lodash"),
tarjan = require("./tarjan");
module.exports = findCycles;
function findCycles(g) {
return _.filter(tarjan(g), function(cmpt) {
return cmpt.length > 1 || (cmpt.length === 1 && g.hasEdge(cmpt[0], cmpt[0]));
});
}
},{"../lodash":19,"./tarjan":13}],7:[function(require,module,exports){
var _ = require("../lodash");
module.exports = floydWarshall;
var DEFAULT_WEIGHT_FUNC = _.constant(1);
function floydWarshall(g, weightFn, edgeFn) {
return runFloydWarshall(g,
weightFn || DEFAULT_WEIGHT_FUNC,
edgeFn || function(v) { return g.outEdges(v); });
}
function runFloydWarshall(g, weightFn, edgeFn) {
var results = {},
nodes = g.nodes();
nodes.forEach(function(v) {
results[v] = {};
results[v][v] = { distance: 0 };
nodes.forEach(function(w) {
if (v !== w) {
results[v][w] = { distance: Number.POSITIVE_INFINITY };
}
});
edgeFn(v).forEach(function(edge) {
var w = edge.v === v ? edge.w : edge.v,
d = weightFn(edge);
results[v][w] = { distance: d, predecessor: v };
});
});
nodes.forEach(function(k) {
var rowK = results[k];
nodes.forEach(function(i) {
var rowI = results[i];
nodes.forEach(function(j) {
var ik = rowI[k];
var kj = rowK[j];
var ij = rowI[j];
var altDistance = ik.distance + kj.distance;
if (altDistance < ij.distance) {
ij.distance = altDistance;
ij.predecessor = kj.predecessor;
}
});
});
});
return results;
}
},{"../lodash":19}],8:[function(require,module,exports){
module.exports = {
components: require("./components"),
dijkstra: require("./dijkstra"),
dijkstraAll: require("./dijkstra-all"),
findCycles: require("./find-cycles"),
floydWarshall: require("./floyd-warshall"),
isAcyclic: require("./is-acyclic"),
postorder: require("./postorder"),
preorder: require("./preorder"),
prim: require("./prim"),
tarjan: require("./tarjan"),
topsort: require("./topsort")
};
},{"./components":2,"./dijkstra":5,"./dijkstra-all":4,"./find-cycles":6,"./floyd-warshall":7,"./is-acyclic":9,"./postorder":10,"./preorder":11,"./prim":12,"./tarjan":13,"./topsort":14}],9:[function(require,module,exports){
var topsort = require("./topsort");
module.exports = isAcyclic;
function isAcyclic(g) {
try {
topsort(g);
} catch (e) {
if (e instanceof topsort.CycleException) {
return false;
}
throw e;
}
return true;
}
},{"./topsort":14}],10:[function(require,module,exports){
var dfs = require("./dfs");
module.exports = postorder;
function postorder(g, vs) {
return dfs(g, vs, "post");
}
},{"./dfs":3}],11:[function(require,module,exports){
var dfs = require("./dfs");
module.exports = preorder;
function preorder(g, vs) {
return dfs(g, vs, "pre");
}
},{"./dfs":3}],12:[function(require,module,exports){
var _ = require("../lodash"),
Graph = require("../graph"),
PriorityQueue = require("../data/priority-queue");
module.exports = prim;
function prim(g, weightFunc) {
var result = new Graph(),
parents = {},
pq = new PriorityQueue(),
v;
function updateNeighbors(edge) {
var w = edge.v === v ? edge.w : edge.v,
pri = pq.priority(w);
if (pri !== undefined) {
var edgeWeight = weightFunc(edge);
if (edgeWeight < pri) {
parents[w] = v;
pq.decrease(w, edgeWeight);
}
}
}
if (g.nodeCount() === 0) {
return result;
}
_.each(g.nodes(), function(v) {
pq.add(v, Number.POSITIVE_INFINITY);
result.setNode(v);
});
// Start from an arbitrary node
pq.decrease(g.nodes()[0], 0);
var init = false;
while (pq.size() > 0) {
v = pq.removeMin();
if (_.has(parents, v)) {
result.setEdge(v, parents[v]);
} else if (init) {
throw new Error("Input graph is not connected: " + g);
} else {
init = true;
}
g.nodeEdges(v).forEach(updateNeighbors);
}
return result;
}
},{"../data/priority-queue":15,"../graph":16,"../lodash":19}],13:[function(require,module,exports){
var _ = require("../lodash");
module.exports = tarjan;
function tarjan(g) {
var index = 0,
stack = [],
visited = {}, // node id -> { onStack, lowlink, index }
results = [];
function dfs(v) {
var entry = visited[v] = {
onStack: true,
lowlink: index,
index: index++
};
stack.push(v);
g.successors(v).forEach(function(w) {
if (!_.has(visited, w)) {
dfs(w);
entry.lowlink = Math.min(entry.lowlink, visited[w].lowlink);
} else if (visited[w].onStack) {
entry.lowlink = Math.min(entry.lowlink, visited[w].index);
}
});
if (entry.lowlink === entry.index) {
var cmpt = [],
w;
do {
w = stack.pop();
visited[w].onStack = false;
cmpt.push(w);
} while (v !== w);
results.push(cmpt);
}
}
g.nodes().forEach(function(v) {
if (!_.has(visited, v)) {
dfs(v);
}
});
return results;
}
},{"../lodash":19}],14:[function(require,module,exports){
var _ = require("../lodash");
module.exports = topsort;
topsort.CycleException = CycleException;
function topsort(g) {
var visited = {},
stack = {},
results = [];
function visit(node) {
if (_.has(stack, node)) {
throw new CycleException();
}
if (!_.has(visited, node)) {
stack[node] = true;
visited[node] = true;
_.each(g.predecessors(node), visit);
delete stack[node];
results.push(node);
}
}
_.each(g.sinks(), visit);
if (_.size(visited) !== g.nodeCount()) {
throw new CycleException();
}
return results;
}
function CycleException() {}
},{"../lodash":19}],15:[function(require,module,exports){
var _ = require("../lodash");
module.exports = PriorityQueue;
/**
* A min-priority queue data structure. This algorithm is derived from Cormen,
* et al., "Introduction to Algorithms". The basic idea of a min-priority
* queue is that you can efficiently (in O(1) time) get the smallest key in
* the queue. Adding and removing elements takes O(log n) time. A key can
* have its priority decreased in O(log n) time.
*/
function PriorityQueue() {
this._arr = [];
this._keyIndices = {};
}
/**
* Returns the number of elements in the queue. Takes `O(1)` time.
*/
PriorityQueue.prototype.size = function() {
return this._arr.length;
};
/**
* Returns the keys that are in the queue. Takes `O(n)` time.
*/
PriorityQueue.prototype.keys = function() {
return this._arr.map(function(x) { return x.key; });
};
/**
* Returns `true` if **key** is in the queue and `false` if not.
*/
PriorityQueue.prototype.has = function(key) {
return _.has(this._keyIndices, key);
};
/**
* Returns the priority for **key**. If **key** is not present in the queue
* then this function returns `undefined`. Takes `O(1)` time.
*
* @param {Object} key
*/
PriorityQueue.prototype.priority = function(key) {
var index = this._keyIndices[key];
if (index !== undefined) {
return this._arr[index].priority;
}
};
/**
* Returns the key for the minimum element in this queue. If the queue is
* empty this function throws an Error. Takes `O(1)` time.
*/
PriorityQueue.prototype.min = function() {
if (this.size() === 0) {
throw new Error("Queue underflow");
}
return this._arr[0].key;
};
/**
* Inserts a new key into the priority queue. If the key already exists in
* the queue this function returns `false`; otherwise it will return `true`.
* Takes `O(n)` time.
*
* @param {Object} key the key to add
* @param {Number} priority the initial priority for the key
*/
PriorityQueue.prototype.add = function(key, priority) {
var keyIndices = this._keyIndices;
key = String(key);
if (!_.has(keyIndices, key)) {
var arr = this._arr;
var index = arr.length;
keyIndices[key] = index;
arr.push({key: key, priority: priority});
this._decrease(index);
return true;
}
return false;
};
/**
* Removes and returns the smallest key in the queue. Takes `O(log n)` time.
*/
PriorityQueue.prototype.removeMin = function() {
this._swap(0, this._arr.length - 1);
var min = this._arr.pop();
delete this._keyIndices[min.key];
this._heapify(0);
return min.key;
};
/**
* Decreases the priority for **key** to **priority**. If the new priority is
* greater than the previous priority, this function will throw an Error.
*
* @param {Object} key the key for which to raise priority
* @param {Number} priority the new priority for the key
*/
PriorityQueue.prototype.decrease = function(key, priority) {
var index = this._keyIndices[key];
if (priority > this._arr[index].priority) {
throw new Error("New priority is greater than current priority. " +
"Key: " + key + " Old: " + this._arr[index].priority + " New: " + priority);
}
this._arr[index].priority = priority;
this._decrease(index);
};
PriorityQueue.prototype._heapify = function(i) {
var arr = this._arr;
var l = 2 * i,
r = l + 1,
largest = i;
if (l < arr.length) {
largest = arr[l].priority < arr[largest].priority ? l : largest;
if (r < arr.length) {
largest = arr[r].priority < arr[largest].priority ? r : largest;
}
if (largest !== i) {
this._swap(i, largest);
this._heapify(largest);
}
}
};
PriorityQueue.prototype._decrease = function(index) {
var arr = this._arr;
var priority = arr[index].priority;
var parent;
while (index !== 0) {
parent = index >> 1;
if (arr[parent].priority < priority) {
break;
}
this._swap(index, parent);
index = parent;
}
};
PriorityQueue.prototype._swap = function(i, j) {
var arr = this._arr;
var keyIndices = this._keyIndices;
var origArrI = arr[i];
var origArrJ = arr[j];
arr[i] = origArrJ;
arr[j] = origArrI;
keyIndices[origArrJ.key] = i;
keyIndices[origArrI.key] = j;
};
},{"../lodash":19}],16:[function(require,module,exports){
"use strict";
var _ = require("./lodash");
module.exports = Graph;
var DEFAULT_EDGE_NAME = "\x00",
GRAPH_NODE = "\x00",
EDGE_KEY_DELIM = "\x01";
// Implementation notes:
//
// * Node id query functions should return string ids for the nodes
// * Edge id query functions should return an "edgeObj", edge object, that is
// composed of enough information to uniquely identify an edge: {v, w, name}.
// * Internally we use an "edgeId", a stringified form of the edgeObj, to
// reference edges. This is because we need a performant way to look these
// edges up and, object properties, which have string keys, are the closest
// we're going to get to a performant hashtable in JavaScript.
function Graph(opts) {
this._isDirected = _.has(opts, "directed") ? opts.directed : true;
this._isMultigraph = _.has(opts, "multigraph") ? opts.multigraph : false;
this._isCompound = _.has(opts, "compound") ? opts.compound : false;
// Label for the graph itself
this._label = undefined;
// Defaults to be set when creating a new node
this._defaultNodeLabelFn = _.constant(undefined);
// Defaults to be set when creating a new edge
this._defaultEdgeLabelFn = _.constant(undefined);
// v -> label
this._nodes = {};
if (this._isCompound) {
// v -> parent
this._parent = {};
// v -> children
this._children = {};
this._children[GRAPH_NODE] = {};
}
// v -> edgeObj
this._in = {};
// u -> v -> Number
this._preds = {};
// v -> edgeObj
this._out = {};
// v -> w -> Number
this._sucs = {};
// e -> edgeObj
this._edgeObjs = {};
// e -> label
this._edgeLabels = {};
}
/* Number of nodes in the graph. Should only be changed by the implementation. */
Graph.prototype._nodeCount = 0;
/* Number of edges in the graph. Should only be changed by the implementation. */
Graph.prototype._edgeCount = 0;
/* === Graph functions ========= */
Graph.prototype.isDirected = function() {
return this._isDirected;
};
Graph.prototype.isMultigraph = function() {
return this._isMultigraph;
};
Graph.prototype.isCompound = function() {
return this._isCompound;
};
Graph.prototype.setGraph = function(label) {
this._label = label;
return this;
};
Graph.prototype.graph = function() {
return this._label;
};
/* === Node functions ========== */
Graph.prototype.setDefaultNodeLabel = function(newDefault) {
if (!_.isFunction(newDefault)) {
newDefault = _.constant(newDefault);
}
this._defaultNodeLabelFn = newDefault;
return this;
};
Graph.prototype.nodeCount = function() {
return this._nodeCount;
};
Graph.prototype.nodes = function() {
return _.keys(this._nodes);
};
Graph.prototype.sources = function() {
return _.filter(this.nodes(), _.bind(function(v) {
return _.isEmpty(this._in[v]);
}, this));
};
Graph.prototype.sinks = function() {
return _.filter(this.nodes(), _.bind(function(v) {
return _.isEmpty(this._out[v]);
}, this));
};
Graph.prototype.setNodes = function(vs, value) {
var args = arguments;
_.each(vs, _.bind(function(v) {
if (args.length > 1) {
this.setNode(v, value);
} else {
this.setNode(v);
}
}, this));
return this;
};
Graph.prototype.setNode = function(v, value) {
if (_.has(this._nodes, v)) {
if (arguments.length > 1) {
this._nodes[v] = value;
}
return this;
}
this._nodes[v] = arguments.length > 1 ? value : this._defaultNodeLabelFn(v);
if (this._isCompound) {
this._parent[v] = GRAPH_NODE;
this._children[v] = {};
this._children[GRAPH_NODE][v] = true;
}
this._in[v] = {};
this._preds[v] = {};
this._out[v] = {};
this._sucs[v] = {};
++this._nodeCount;
return this;
};
Graph.prototype.node = function(v) {
return this._nodes[v];
};
Graph.prototype.hasNode = function(v) {
return _.has(this._nodes, v);
};
Graph.prototype.removeNode = function(v) {
var self = this;
if (_.has(this._nodes, v)) {
var removeEdge = function(e) { self.removeEdge(self._edgeObjs[e]); };
delete this._nodes[v];
if (this._isCompound) {
this._removeFromParentsChildList(v);
delete this._parent[v];
_.each(this.children(v), _.bind(function(child) {
this.setParent(child);
}, this));
delete this._children[v];
}
_.each(_.keys(this._in[v]), removeEdge);
delete this._in[v];
delete this._preds[v];
_.each(_.keys(this._out[v]), removeEdge);
delete this._out[v];
delete this._sucs[v];
--this._nodeCount;
}
return this;
};
Graph.prototype.setParent = function(v, parent) {
if (!this._isCompound) {
throw new Error("Cannot set parent in a non-compound graph");
}
if (_.isUndefined(parent)) {
parent = GRAPH_NODE;
} else {
// Coerce parent to string
parent += "";
for (var ancestor = parent;
!_.isUndefined(ancestor);
ancestor = this.parent(ancestor)) {
if (ancestor === v) {
throw new Error("Setting " + parent+ " as parent of " + v +
" would create create a cycle");
}
}
this.setNode(parent);
}
this.setNode(v);
this._removeFromParentsChildList(v);
this._parent[v] = parent;
this._children[parent][v] = true;
return this;
};
Graph.prototype._removeFromParentsChildList = function(v) {
delete this._children[this._parent[v]][v];
};
Graph.prototype.parent = function(v) {
if (this._isCompound) {
var parent = this._parent[v];
if (parent !== GRAPH_NODE) {
return parent;
}
}
};
Graph.prototype.children = function(v) {
if (_.isUndefined(v)) {
v = GRAPH_NODE;
}
if (this._isCompound) {
var children = this._children[v];
if (children) {
return _.keys(children);
}
} else if (v === GRAPH_NODE) {
return this.nodes();
} else if (this.hasNode(v)) {
return [];
}
};
Graph.prototype.predecessors = function(v) {
var predsV = this._preds[v];
if (predsV) {
return _.keys(predsV);
}
};
Graph.prototype.successors = function(v) {
var sucsV = this._sucs[v];
if (sucsV) {
return _.keys(sucsV);
}
};
Graph.prototype.neighbors = function(v) {
var preds = this.predecessors(v);
if (preds) {
return _.union(preds, this.successors(v));
}
};
Graph.prototype.isLeaf = function (v) {
var neighbors;
if (this.isDirected()) {
neighbors = this.successors(v);
} else {
neighbors = this.neighbors(v);
}
return neighbors.length === 0;
};
Graph.prototype.filterNodes = function(filter) {
var copy = new this.constructor({
directed: this._isDirected,
multigraph: this._isMultigraph,
compound: this._isCompound
});
copy.setGraph(this.graph());
_.each(this._nodes, _.bind(function(value, v) {
if (filter(v)) {
copy.setNode(v, value);
}
}, this));
_.each(this._edgeObjs, _.bind(function(e) {
if (copy.hasNode(e.v) && copy.hasNode(e.w)) {
copy.setEdge(e, this.edge(e));
}
}, this));
var self = this;
var parents = {};
function findParent(v) {
var parent = self.parent(v);
if (parent === undefined || copy.hasNode(parent)) {
parents[v] = parent;
return parent;
} else if (parent in parents) {
return parents[parent];
} else {
return findParent(parent);
}
}
if (this._isCompound) {
_.each(copy.nodes(), function(v) {
copy.setParent(v, findParent(v));
});
}
return copy;
};
/* === Edge functions ========== */
Graph.prototype.setDefaultEdgeLabel = function(newDefault) {
if (!_.isFunction(newDefault)) {
newDefault = _.constant(newDefault);
}
this._defaultEdgeLabelFn = newDefault;
return this;
};
Graph.prototype.edgeCount = function() {
return this._edgeCount;
};
Graph.prototype.edges = function() {
return _.values(this._edgeObjs);
};
Graph.prototype.setPath = function(vs, value) {
var self = this,
args = arguments;
_.reduce(vs, function(v, w) {
if (args.length > 1) {
self.setEdge(v, w, value);
} else {
self.setEdge(v, w);
}
return w;
});
return this;
};
/*
* setEdge(v, w, [value, [name]])
* setEdge({ v, w, [name] }, [value])
*/
Graph.prototype.setEdge = function() {
var v, w, name, value,
valueSpecified = false,
arg0 = arguments[0];
if (typeof arg0 === "object" && arg0 !== null && "v" in arg0) {
v = arg0.v;
w = arg0.w;
name = arg0.name;
if (arguments.length === 2) {
value = arguments[1];
valueSpecified = true;
}
} else {
v = arg0;
w = arguments[1];
name = arguments[3];
if (arguments.length > 2) {
value = arguments[2];
valueSpecified = true;
}
}
v = "" + v;
w = "" + w;
if (!_.isUndefined(name)) {
name = "" + name;
}
var e = edgeArgsToId(this._isDirected, v, w, name);
if (_.has(this._edgeLabels, e)) {
if (valueSpecified) {
this._edgeLabels[e] = value;
}
return this;
}
if (!_.isUndefined(name) && !this._isMultigraph) {
throw new Error("Cannot set a named edge when isMultigraph = false");
}
// It didn't exist, so we need to create it.
// First ensure the nodes exist.
this.setNode(v);
this.setNode(w);
this._edgeLabels[e] = valueSpecified ? value : this._defaultEdgeLabelFn(v, w, name);
var edgeObj = edgeArgsToObj(this._isDirected, v, w, name);
// Ensure we add undirected edges in a consistent way.
v = edgeObj.v;
w = edgeObj.w;
Object.freeze(edgeObj);
this._edgeObjs[e] = edgeObj;
incrementOrInitEntry(this._preds[w], v);
incrementOrInitEntry(this._sucs[v], w);
this._in[w][e] = edgeObj;
this._out[v][e] = edgeObj;
this._edgeCount++;
return this;
};
Graph.prototype.edge = function(v, w, name) {
var e = (arguments.length === 1
? edgeObjToId(this._isDirected, arguments[0])
: edgeArgsToId(this._isDirected, v, w, name));
return this._edgeLabels[e];
};
Graph.prototype.hasEdge = function(v, w, name) {
var e = (arguments.length === 1
? edgeObjToId(this._isDirected, arguments[0])
: edgeArgsToId(this._isDirected, v, w, name));
return _.has(this._edgeLabels, e);
};
Graph.prototype.removeEdge = function(v, w, name) {
var e = (arguments.length === 1
? edgeObjToId(this._isDirected, arguments[0])
: edgeArgsToId(this._isDirected, v, w, name)),
edge = this._edgeObjs[e];
if (edge) {
v = edge.v;
w = edge.w;
delete this._edgeLabels[e];
delete this._edgeObjs[e];
decrementOrRemoveEntry(this._preds[w], v);
decrementOrRemoveEntry(this._sucs[v], w);
delete this._in[w][e];
delete this._out[v][e];
this._edgeCount--;
}
return this;
};
Graph.prototype.inEdges = function(v, u) {
var inV = this._in[v];
if (inV) {
var edges = _.values(inV);
if (!u) {
return edges;
}
return _.filter(edges, function(edge) { return edge.v === u; });
}
};
Graph.prototype.outEdges = function(v, w) {
var outV = this._out[v];
if (outV) {
var edges = _.values(outV);
if (!w) {
return edges;
}
return _.filter(edges, function(edge) { return edge.w === w; });
}
};
Graph.prototype.nodeEdges = function(v, w) {
var inEdges = this.inEdges(v, w);
if (inEdges) {
return inEdges.concat(this.outEdges(v, w));
}
};
function incrementOrInitEntry(map, k) {
if (map[k]) {
map[k]++;
} else {
map[k] = 1;
}
}
function decrementOrRemoveEntry(map, k) {
if (!--map[k]) { delete map[k]; }
}
function edgeArgsToId(isDirected, v_, w_, name) {
var v = "" + v_;
var w = "" + w_;
if (!isDirected && v > w) {
var tmp = v;
v = w;
w = tmp;
}
return v + EDGE_KEY_DELIM + w + EDGE_KEY_DELIM +
(_.isUndefined(name) ? DEFAULT_EDGE_NAME : name);
}
function edgeArgsToObj(isDirected, v_, w_, name) {
var v = "" + v_;
var w = "" + w_;
if (!isDirected && v > w) {
var tmp = v;
v = w;
w = tmp;
}
var edgeObj = { v: v, w: w };
if (name) {
edgeObj.name = name;
}
return edgeObj;
}
function edgeObjToId(isDirected, edgeObj) {
return edgeArgsToId(isDirected, edgeObj.v, edgeObj.w, edgeObj.name);
}
},{"./lodash":19}],17:[function(require,module,exports){
// Includes only the "core" of graphlib
module.exports = {
Graph: require("./graph"),
version: require("./version")
};
},{"./graph":16,"./version":20}],18:[function(require,module,exports){
var _ = require("./lodash"),
Graph = require("./graph");
module.exports = {
write: write,
read: read
};
function write(g) {
var json = {
options: {
directed: g.isDirected(),
multigraph: g.isMultigraph(),
compound: g.isCompound()
},
nodes: writeNodes(g),
edges: writeEdges(g)
};
if (!_.isUndefined(g.graph())) {
json.value = _.clone(g.graph());
}
return json;
}
function writeNodes(g) {
return _.map(g.nodes(), function(v) {
var nodeValue = g.node(v),
parent = g.parent(v),
node = { v: v };
if (!_.isUndefined(nodeValue)) {
node.value = nodeValue;
}
if (!_.isUndefined(parent)) {
node.parent = parent;
}
return node;
});
}
function writeEdges(g) {
return _.map(g.edges(), function(e) {
var edgeValue = g.edge(e),
edge = { v: e.v, w: e.w };
if (!_.isUndefined(e.name)) {
edge.name = e.name;
}
if (!_.isUndefined(edgeValue)) {
edge.value = edgeValue;
}
return edge;
});
}
function read(json) {
var g = new Graph(json.options).setGraph(json.value);
_.each(json.nodes, function(entry) {
g.setNode(entry.v, entry.value);
if (entry.parent) {
g.setParent(entry.v, entry.parent);
}
});
_.each(json.edges, function(entry) {
g.setEdge({ v: entry.v, w: entry.w, name: entry.name }, entry.value);
});
return g;
}
},{"./graph":16,"./lodash":19}],19:[function(require,module,exports){
/* global window */
var lodash;
if (typeof require === "function") {
try {
lodash = require("lodash");
} catch (e) {}
}
if (!lodash) {
lodash = window._;
}
module.exports = lodash;
},{"lodash":21}],20:[function(require,module,exports){
module.exports = '2.1.4';
},{}],21:[function(require,module,exports){
(function (global){
/**
* @license
* Lodash <https://lodash.com/>
* Copyright JS Foundation and other contributors <https://js.foundation/>
* Released under MIT license <https://lodash.com/license>
* Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
* Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
*/
;(function() {
/** Used as a safe reference for `undefined` in pre-ES5 environments. */
var undefined;
/** Used as the semantic version number. */
var VERSION = '4.17.4';
/** Used as the size to enable large array optimizations. */
var LARGE_ARRAY_SIZE = 200;
/** Error message constants. */
var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
FUNC_ERROR_TEXT = 'Expected a function';
/** Used to stand-in for `undefined` hash values. */
var HASH_UNDEFINED = '__lodash_hash_undefined__';
/** Used as the maximum memoize cache size. */
var MAX_MEMOIZE_SIZE = 500;
/** Used as the internal argument placeholder. */
var PLACEHOLDER = '__lodash_placeholder__';
/** Used to compose bitmasks for cloning. */
var CLONE_DEEP_FLAG = 1,
CLONE_FLAT_FLAG = 2,
CLONE_SYMBOLS_FLAG = 4;
/** Used to compose bitmasks for value comparisons. */
var COMPARE_PARTIAL_FLAG = 1,
COMPARE_UNORDERED_FLAG = 2;
/** Used to compose bitmasks for function metadata. */
var WRAP_BIND_FLAG = 1,
WRAP_BIND_KEY_FLAG = 2,
WRAP_CURRY_BOUND_FLAG = 4,
WRAP_CURRY_FLAG = 8,
WRAP_CURRY_RIGHT_FLAG = 16,
WRAP_PARTIAL_FLAG = 32,
WRAP_PARTIAL_RIGHT_FLAG = 64,
WRAP_ARY_FLAG = 128,
WRAP_REARG_FLAG = 256,
WRAP_FLIP_FLAG = 512;
/** Used as default options for `_.truncate`. */
var DEFAULT_TRUNC_LENGTH = 30,
DEFAULT_TRUNC_OMISSION = '...';
/** Used to detect hot functions by number of calls within a span of milliseconds. */
var HOT_COUNT = 800,
HOT_SPAN = 16;
/** Used to indicate the type of lazy iteratees. */
var LAZY_FILTER_FLAG = 1,
LAZY_MAP_FLAG = 2,
LAZY_WHILE_FLAG = 3;
/** Used as references for various `Number` constants. */
var INFINITY = 1 / 0,
MAX_SAFE_INTEGER = 9007199254740991,
MAX_INTEGER = 1.7976931348623157e+308,
NAN = 0 / 0;
/** Used as references for the maximum length and index of an array. */
var MAX_ARRAY_LENGTH = 4294967295,
MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;
/** Used to associate wrap methods with their bit flags. */
var wrapFlags = [
['ary', WRAP_ARY_FLAG],
['bind', WRAP_BIND_FLAG],
['bindKey', WRAP_BIND_KEY_FLAG],
['curry', WRAP_CURRY_FLAG],
['curryRight', WRAP_CURRY_RIGHT_FLAG],
['flip', WRAP_FLIP_FLAG],
['partial', WRAP_PARTIAL_FLAG],
['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
['rearg', WRAP_REARG_FLAG]
];
/** `Object#toString` result references. */
var argsTag = '[object Arguments]',
arrayTag = '[object Array]',
asyncTag = '[object AsyncFunction]',
boolTag = '[object Boolean]',
dateTag = '[object Date]',
domExcTag = '[object DOMException]',
errorTag = '[object Error]',
funcTag = '[object Function]',
genTag = '[object GeneratorFunction]',
mapTag = '[object Map]',
numberTag = '[object Number]',
nullTag = '[object Null]',
objectTag = '[object Object]',
promiseTag = '[object Promise]',
proxyTag = '[object Proxy]',
regexpTag = '[object RegExp]',
setTag = '[object Set]',
stringTag = '[object String]',
symbolTag = '[object Symbol]',
undefinedTag = '[object Undefined]',
weakMapTag = '[object WeakMap]',
weakSetTag = '[object WeakSet]';
var arrayBufferTag = '[object ArrayBuffer]',
dataViewTag = '[object DataView]',
float32Tag = '[object Float32Array]',
float64Tag = '[object Float64Array]',
int8Tag = '[object Int8Array]',
int16Tag = '[object Int16Array]',
int32Tag = '[object Int32Array]',
uint8Tag = '[object Uint8Array]',
uint8ClampedTag = '[object Uint8ClampedArray]',
uint16Tag = '[object Uint16Array]',
uint32Tag = '[object Uint32Array]';
/** Used to match empty string literals in compiled template source. */
var reEmptyStringLeading = /\b__p \+= '';/g,
reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;
/** Used to match HTML entities and HTML characters. */
var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
reUnescapedHtml = /[&<>"']/g,
reHasEscapedHtml = RegExp(reEscapedHtml.source),
reHasUnescapedHtml = RegExp(reUnescapedHtml.source);
/** Used to match template delimiters. */
var reEscape = /<%-([\s\S]+?)%>/g,
reEvaluate = /<%([\s\S]+?)%>/g,
reInterpolate = /<%=([\s\S]+?)%>/g;
/** Used to match property names within property paths. */
var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
reIsPlainProp = /^\w*$/,
reLeadingDot = /^\./,
rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;
/**
* Used to match `RegExp`
* [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
*/
var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
reHasRegExpChar = RegExp(reRegExpChar.source);
/** Used to match leading and trailing whitespace. */
var reTrim = /^\s+|\s+$/g,
reTrimStart = /^\s+/,
reTrimEnd = /\s+$/;
/** Used to match wrap detail comments. */
var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
reSplitDetails = /,? & /;
/** Used to match words composed of alphanumeric characters. */
var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;
/** Used to match backslashes in property paths. */
var reEscapeChar = /\\(\\)?/g;
/**
* Used to match
* [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
*/
var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;
/** Used to match `RegExp` flags from their coerced string values. */
var reFlags = /\w*$/;
/** Used to detect bad signed hexadecimal string values. */
var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;
/** Used to detect binary string values. */
var reIsBinary = /^0b[01]+$/i;
/** Used to detect host constructors (Safari). */
var reIsHostCtor = /^\[object .+?Constructor\]$/;
/** Used to detect octal string values. */
var reIsOctal = /^0o[0-7]+$/i;
/** Used to detect unsigned integer values. */
var reIsUint = /^(?:0|[1-9]\d*)$/;
/** Used to match Latin Unicode letters (excluding mathematical operators). */
var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;
/** Used to ensure capturing order of template delimiters. */
var reNoMatch = /($^)/;
/** Used to match unescaped characters in compiled string literals. */
var reUnescapedString = /['\n\r\u2028\u2029\\]/g;
/** Used to compose unicode character classes. */
var rsAstralRange = '\\ud800-\\udfff',
rsComboMarksRange = '\\u0300-\\u036f',
reComboHalfMarksRange = '\\ufe20-\\ufe2f',
rsComboSymbolsRange = '\\u20d0-\\u20ff',
rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
rsDingbatRange = '\\u2700-\\u27bf',
rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
rsPunctuationRange = '\\u2000-\\u206f',
rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
rsVarRange = '\\ufe0e\\ufe0f',
rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;
/** Used to compose unicode capture groups. */
var rsApos = "['\u2019]",
rsAstral = '[' + rsAstralRange + ']',
rsBreak = '[' + rsBreakRange + ']',
rsCombo = '[' + rsComboRange + ']',
rsDigits = '\\d+',
rsDingbat = '[' + rsDingbatRange + ']',
rsLower = '[' + rsLowerRange + ']',
rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
rsFitz = '\\ud83c[\\udffb-\\udfff]',
rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
rsNonAstral = '[^' + rsAstralRange + ']',
rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
rsUpper = '[' + rsUpperRange + ']',
rsZWJ = '\\u200d';
/** Used to compose unicode regexes. */
var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
reOptMod = rsModifier + '?',
rsOptVar = '[' + rsVarRange + ']?',
rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
rsOrdLower = '\\d*(?:(?:1st|2nd|3rd|(?![123])\\dth)\\b)',
rsOrdUpper = '\\d*(?:(?:1ST|2ND|3RD|(?![123])\\dTH)\\b)',
rsSeq = rsOptVar + reOptMod + rsOptJoin,
rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
/** Used to match apostrophes. */
var reApos = RegExp(rsApos, 'g');
/**
* Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
* [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
*/
var reComboMark = RegExp(rsCombo, 'g');
/** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
/** Used to match complex or compound words. */
var reUnicodeWord = RegExp([
rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
rsUpper + '+' + rsOptContrUpper,
rsOrdUpper,
rsOrdLower,
rsDigits,
rsEmoji
].join('|'), 'g');
/** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange + rsComboRange + rsVarRange + ']');
/** Used to detect strings that need a more robust regexp to match words. */
var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2,}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;
/** Used to assign default `context` object properties. */
var contextProps = [
'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
'_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
];
/** Used to make template sourceURLs easier to identify. */
var templateCounter = -1;
/** Used to identify `toStringTag` values of typed arrays. */
var typedArrayTags = {};
typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
typedArrayTags[uint32Tag] = true;
typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
typedArrayTags[errorTag] = typedArrayTags[funcTag] =
typedArrayTags[mapTag] = typedArrayTags[numberTag] =
typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
typedArrayTags[setTag] = typedArrayTags[stringTag] =
typedArrayTags[weakMapTag] = false;
/** Used to identify `toStringTag` values supported by `_.clone`. */
var cloneableTags = {};
cloneableTags[argsTag] = cloneableTags[arrayTag] =
cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
cloneableTags[boolTag] = cloneableTags[dateTag] =
cloneableTags[float32Tag] = cloneableTags[float64Tag] =
cloneableTags[int8Tag] = cloneableTags[int16Tag] =
cloneableTags[int32Tag] = cloneableTags[mapTag] =
cloneableTags[numberTag] = cloneableTags[objectTag] =
cloneableTags[regexpTag] = cloneableTags[setTag] =
cloneableTags[stringTag] = cloneableTags[symbolTag] =
cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
cloneableTags[errorTag] = cloneableTags[funcTag] =
cloneableTags[weakMapTag] = false;
/** Used to map Latin Unicode letters to basic Latin letters. */
var deburredLetters = {
// Latin-1 Supplement block.
'\xc0': 'A', '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
'\xe0': 'a', '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
'\xc7': 'C', '\xe7': 'c',
'\xd0': 'D', '\xf0': 'd',
'\xc8': 'E', '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
'\xe8': 'e', '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
'\xcc': 'I', '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
'\xec': 'i', '\xed': 'i', '\xee': 'i', '\xef': 'i',
'\xd1': 'N', '\xf1': 'n',
'\xd2': 'O', '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
'\xf2': 'o', '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
'\xd9': 'U', '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
'\xf9': 'u', '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
'\xdd': 'Y', '\xfd': 'y', '\xff': 'y',
'\xc6': 'Ae', '\xe6': 'ae',
'\xde': 'Th', '\xfe': 'th',
'\xdf': 'ss',
// Latin Extended-A block.
'\u0100': 'A', '\u0102': 'A', '\u0104': 'A',
'\u0101': 'a', '\u0103': 'a', '\u0105': 'a',
'\u0106': 'C', '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
'\u0107': 'c', '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
'\u010e': 'D', '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
'\u0112': 'E', '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
'\u0113': 'e', '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
'\u011c': 'G', '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
'\u011d': 'g', '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
'\u0124': 'H', '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
'\u0128': 'I', '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
'\u0129': 'i', '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
'\u0134': 'J', '\u0135': 'j',
'\u0136': 'K', '\u0137': 'k', '\u0138': 'k',
'\u0139': 'L', '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
'\u013a': 'l', '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
'\u0143': 'N', '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
'\u0144': 'n', '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
'\u014c': 'O', '\u014e': 'O', '\u0150': 'O',
'\u014d': 'o', '\u014f': 'o', '\u0151': 'o',
'\u0154': 'R', '\u0156': 'R', '\u0158': 'R',
'\u0155': 'r', '\u0157': 'r', '\u0159': 'r',
'\u015a': 'S', '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
'\u015b': 's', '\u015d': 's', '\u015f': 's', '\u0161': 's',
'\u0162': 'T', '\u0164': 'T', '\u0166': 'T',
'\u0163': 't', '\u0165': 't', '\u0167': 't',
'\u0168': 'U', '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
'\u0169': 'u', '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
'\u0174': 'W', '\u0175': 'w',
'\u0176': 'Y', '\u0177': 'y', '\u0178': 'Y',
'\u0179': 'Z', '\u017b': 'Z', '\u017d': 'Z',
'\u017a': 'z', '\u017c': 'z', '\u017e': 'z',
'\u0132': 'IJ', '\u0133': 'ij',
'\u0152': 'Oe', '\u0153': 'oe',
'\u0149': "'n", '\u017f': 's'
};
/** Used to map characters to HTML entities. */
var htmlEscapes = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
"'": '''
};
/** Used to map HTML entities to characters. */
var htmlUnescapes = {
'&': '&',
'<': '<',
'>': '>',
'"': '"',
''': "'"
};
/** Used to escape characters for inclusion in compiled string literals. */
var stringEscapes = {
'\\': '\\',
"'": "'",
'\n': 'n',
'\r': 'r',
'\u2028': 'u2028',
'\u2029': 'u2029'
};
/** Built-in method references without a dependency on `root`. */
var freeParseFloat = parseFloat,
freeParseInt = parseInt;
/** Detect free variable `global` from Node.js. */
var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
/** Detect free variable `self`. */
var freeSelf = typeof self == 'object' && self && self.Object === Object && self;
/** Used as a reference to the global object. */
var root = freeGlobal || freeSelf || Function('return this')();
/** Detect free variable `exports`. */
var freeExports = typeof exports == 'object' && exports && !exports.nodeType && exports;
/** Detect free variable `module`. */
var freeModule = freeExports && typeof module == 'object' && module && !module.nodeType && module;
/** Detect the popular CommonJS extension `module.exports`. */
var moduleExports = freeModule && freeModule.exports === freeExports;
/** Detect free variable `process` from Node.js. */
var freeProcess = moduleExports && freeGlobal.process;
/** Used to access faster Node.js helpers. */
var nodeUtil = (function() {
try {
return freeProcess && freeProcess.binding && freeProcess.binding('util');
} catch (e) {}
}());
/* Node.js helper references. */
var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
nodeIsDate = nodeUtil && nodeUtil.isDate,
nodeIsMap = nodeUtil && nodeUtil.isMap,
nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
nodeIsSet = nodeUtil && nodeUtil.isSet,
nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;
/*--------------------------------------------------------------------------*/
/**
* Adds the key-value `pair` to `map`.
*
* @private
* @param {Object} map The map to modify.
* @param {Array} pair The key-value pair to add.
* @returns {Object} Returns `map`.
*/
function addMapEntry(map, pair) {
// Don't return `map.set` because it's not chainable in IE 11.
map.set(pair[0], pair[1]);
return map;
}
/**
* Adds `value` to `set`.
*
* @private
* @param {Object} set The set to modify.
* @param {*} value The value to add.
* @returns {Object} Returns `set`.
*/
function addSetEntry(set, value) {
// Don't return `set.add` because it's not chainable in IE 11.
set.add(value);
return set;
}
/**
* A faster alternative to `Function#apply`, this function invokes `func`
* with the `this` binding of `thisArg` and the arguments of `args`.
*
* @private
* @param {Function} func The function to invoke.
* @param {*} thisArg The `this` binding of `func`.
* @param {Array} args The arguments to invoke `func` wi