/******/ (() => { // webpackBootstrap
/******/ var __webpack_modules__ = ({
/***/ 792:
/***/ ((module, exports, __webpack_require__) => {
var __WEBPACK_AMD_DEFINE_FACTORY__, __WEBPACK_AMD_DEFINE_RESULT__;function _wrapNativeSuper(t) { var r = "function" == typeof Map ? new Map() : void 0; return _wrapNativeSuper = function _wrapNativeSuper(t) { if (null === t || !_isNativeFunction(t)) return t; if ("function" != typeof t) throw new TypeError("Super expression must either be null or a function"); if (void 0 !== r) { if (r.has(t)) return r.get(t); r.set(t, Wrapper); } function Wrapper() { return _construct(t, arguments, _getPrototypeOf(this).constructor); } return Wrapper.prototype = Object.create(t.prototype, { constructor: { value: Wrapper, enumerable: !1, writable: !0, configurable: !0 } }), _setPrototypeOf(Wrapper, t); }, _wrapNativeSuper(t); }
function _construct(t, e, r) { if (_isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments); var o = [null]; o.push.apply(o, e); var p = new (t.bind.apply(t, o))(); return r && _setPrototypeOf(p, r.prototype), p; }
function _isNativeFunction(t) { try { return -1 !== Function.toString.call(t).indexOf("[native code]"); } catch (n) { return "function" == typeof t; } }
function _toConsumableArray(r) { return _arrayWithoutHoles(r) || _iterableToArray(r) || _unsupportedIterableToArray(r) || _nonIterableSpread(); }
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."); }
function _iterableToArray(r) { if ("undefined" != typeof Symbol && null != r[Symbol.iterator] || null != r["@@iterator"]) return Array.from(r); }
function _arrayWithoutHoles(r) { if (Array.isArray(r)) return _arrayLikeToArray(r); }
function _createForOfIteratorHelper(r, e) { var t = "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (!t) { if (Array.isArray(r) || (t = _unsupportedIterableToArray(r)) || e && r && "number" == typeof r.length) { t && (r = t); var _n = 0, F = function F() {}; return { s: F, n: function n() { return _n >= r.length ? { done: !0 } : { done: !1, value: r[_n++] }; }, e: function e(r) { throw r; }, f: F }; } throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } var o, a = !0, u = !1; return { s: function s() { t = t.call(r); }, n: function n() { var r = t.next(); return a = r.done, r; }, e: function e(r) { u = !0, o = r; }, f: function f() { try { a || null == t["return"] || t["return"](); } finally { if (u) throw o; } } }; }
function _callSuper(t, o, e) { return o = _getPrototypeOf(o), _possibleConstructorReturn(t, _isNativeReflectConstruct() ? Reflect.construct(o, e || [], _getPrototypeOf(t).constructor) : o.apply(t, e)); }
function _possibleConstructorReturn(t, e) { if (e && ("object" == _typeof(e) || "function" == typeof e)) return e; if (void 0 !== e) throw new TypeError("Derived constructors may only return object or undefined"); return _assertThisInitialized(t); }
function _assertThisInitialized(e) { if (void 0 === e) throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); return e; }
function _isNativeReflectConstruct() { try { var t = !Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {})); } catch (t) {} return (_isNativeReflectConstruct = function _isNativeReflectConstruct() { return !!t; })(); }
function _superPropGet(t, o, e, r) { var p = _get(_getPrototypeOf(1 & r ? t.prototype : t), o, e); return 2 & r && "function" == typeof p ? function (t) { return p.apply(e, t); } : p; }
function _get() { return _get = "undefined" != typeof Reflect && Reflect.get ? Reflect.get.bind() : function (e, t, r) { var p = _superPropBase(e, t); if (p) { var n = Object.getOwnPropertyDescriptor(p, t); return n.get ? n.get.call(arguments.length < 3 ? e : r) : n.value; } }, _get.apply(null, arguments); }
function _superPropBase(t, o) { for (; !{}.hasOwnProperty.call(t, o) && null !== (t = _getPrototypeOf(t));); return t; }
function _getPrototypeOf(t) { return _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf.bind() : function (t) { return t.__proto__ || Object.getPrototypeOf(t); }, _getPrototypeOf(t); }
function _inherits(t, e) { if ("function" != typeof e && null !== e) throw new TypeError("Super expression must either be null or a function"); t.prototype = Object.create(e && e.prototype, { constructor: { value: t, writable: !0, configurable: !0 } }), Object.defineProperty(t, "prototype", { writable: !1 }), e && _setPrototypeOf(t, e); }
function _setPrototypeOf(t, e) { return _setPrototypeOf = Object.setPrototypeOf ? Object.setPrototypeOf.bind() : function (t, e) { return t.__proto__ = e, t; }, _setPrototypeOf(t, e); }
function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _defineProperty(e, r, t) { return (r = _toPropertyKey(r)) in e ? Object.defineProperty(e, r, { value: t, enumerable: !0, configurable: !0, writable: !0 }) : e[r] = t, e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
function _slicedToArray(r, e) { return _arrayWithHoles(r) || _iterableToArrayLimit(r, e) || _unsupportedIterableToArray(r, e) || _nonIterableRest(); }
function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); }
function _unsupportedIterableToArray(r, a) { if (r) { if ("string" == typeof r) return _arrayLikeToArray(r, a); var t = {}.toString.call(r).slice(8, -1); return "Object" === t && r.constructor && (t = r.constructor.name), "Map" === t || "Set" === t ? Array.from(r) : "Arguments" === t || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(t) ? _arrayLikeToArray(r, a) : void 0; } }
function _arrayLikeToArray(r, a) { (null == a || a > r.length) && (a = r.length); for (var e = 0, n = Array(a); e < a; e++) n[e] = r[e]; return n; }
function _iterableToArrayLimit(r, l) { var t = null == r ? null : "undefined" != typeof Symbol && r[Symbol.iterator] || r["@@iterator"]; if (null != t) { var e, n, i, u, a = [], f = !0, o = !1; try { if (i = (t = t.call(r)).next, 0 === l) { if (Object(t) !== t) return; f = !1; } else for (; !(f = (e = i.call(t)).done) && (a.push(e.value), a.length !== l); f = !0); } catch (r) { o = !0, n = r; } finally { try { if (!f && null != t["return"] && (u = t["return"](), Object(u) !== u)) return; } finally { if (o) throw n; } } return a; } }
function _arrayWithHoles(r) { if (Array.isArray(r)) return r; }
(function (factory) {
true ? !(__WEBPACK_AMD_DEFINE_FACTORY__ = (factory),
__WEBPACK_AMD_DEFINE_RESULT__ = (typeof __WEBPACK_AMD_DEFINE_FACTORY__ === 'function' ?
(__WEBPACK_AMD_DEFINE_FACTORY__.call(exports, __webpack_require__, exports, module)) :
__WEBPACK_AMD_DEFINE_FACTORY__),
__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)) : 0;
})(function () {
'use strict';
// Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
var days = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
var months = ['Jan.', 'Feb.', 'March', 'April', 'May', 'June', 'July', 'Aug.', 'Sept.', 'Oct.', 'Nov.', 'Dec.'];
var zeroPad = function zeroPad(n) {
return n < 10 ? '0' + n : n;
};
var RFC = function RFC(date) {
var day = days[date.getDay()].substring(0, 3);
var paddedDate = zeroPad(date.getDate());
var month = months[date.getMonth()].substring(0, 3);
var year = date.getFullYear().toString();
var hours = date.getUTCHours().toString();
var minutes = date.getUTCMinutes().toString();
var seconds = date.getUTCSeconds().toString();
return "".concat(day, ", ").concat(paddedDate, " ").concat(month, " ").concat(year, " ").concat(hours, ":").concat(minutes, ":").concat(seconds, " Z");
};
var objectFromMap = function objectFromMap(map) {
var object = Array.from(map).reduce(function (object, _ref) {
var _ref2 = _slicedToArray(_ref, 2),
key = _ref2[0],
value = _ref2[1];
return Object.assign(object, _defineProperty({}, key, value)) // Be careful! Maps can have non-String keys; object literals can't.
;
}, {});
return object;
};
var mapFromObject = function mapFromObject(object) {
var map = new Map();
for (var property in object) {
if (object.hasOwnProperty(property)) {
map.set(property, object[property]);
}
}
return map;
};
var Author = /*#__PURE__*/function () {
// constructor(name='', personalURL='', affiliation='', affiliationURL='') {
// this.name = name; // 'Chris Olah'
// this.personalURL = personalURL; // 'https://colah.github.io'
// this.affiliation = affiliation; // 'Google Brain'
// this.affiliationURL = affiliationURL; // 'https://g.co/brain'
// }
function Author(object) {
_classCallCheck(this, Author);
this.name = object.author; // 'Chris Olah'
this.personalURL = object.authorURL; // 'https://colah.github.io'
this.affiliation = object.affiliation; // 'Google Brain'
this.affiliationURL = object.affiliationURL; // 'https://g.co/brain'
this.affiliations = object.affiliations || []; // new-style affiliations
}
// 'Chris'
return _createClass(Author, [{
key: "firstName",
get: function get() {
var names = this.name.split(' ');
return names.slice(0, names.length - 1).join(' ');
}
// 'Olah'
}, {
key: "lastName",
get: function get() {
var names = this.name.split(' ');
return names[names.length - 1];
}
}]);
}();
function mergeFromYMLFrontmatter(target, source) {
target.title = source.title;
if (source.published) {
if (source.published instanceof Date) {
target.publishedDate = source.published;
} else if (source.published.constructor === String) {
target.publishedDate = new Date(source.published);
}
}
if (source.publishedDate) {
if (source.publishedDate instanceof Date) {
target.publishedDate = source.publishedDate;
} else if (source.publishedDate.constructor === String) {
target.publishedDate = new Date(source.publishedDate);
} else {
console.error('Don\'t know what to do with published date: ' + source.publishedDate);
}
}
target.description = source.description;
target.authors = source.authors.map(function (authorObject) {
return new Author(authorObject);
});
target.katex = source.katex;
target.password = source.password;
if (source.doi) {
target.doi = source.doi;
}
}
var FrontMatter = /*#__PURE__*/function () {
function FrontMatter() {
_classCallCheck(this, FrontMatter);
this.title = 'unnamed article'; // 'Attention and Augmented Recurrent Neural Networks'
this.description = ''; // 'A visual overview of neural attention...'
this.authors = []; // Array of Author(s)
this.bibliography = new Map();
this.bibliographyParsed = false;
// {
// 'gregor2015draw': {
// 'title': 'DRAW: A recurrent neural network for image generation',
// 'author': 'Gregor, Karol and Danihelka, Ivo and Graves, Alex and Rezende, Danilo Jimenez and Wierstra, Daan',
// 'journal': 'arXiv preprint arXiv:1502.04623',
// 'year': '2015',
// 'url': 'https://arxiv.org/pdf/1502.04623.pdf',
// 'type': 'article'
// },
// }
// Citation keys should be listed in the order that they are appear in the document.
// Each key refers to a key in the bibliography dictionary.
this.citations = []; // [ 'gregor2015draw', 'mercier2011humans' ]
this.citationsCollected = false;
//
// Assigned from posts.csv
//
// publishedDate: 2016-09-08T07:00:00.000Z,
// tags: [ 'rnn' ],
// distillPath: '2016/augmented-rnns',
// githubPath: 'distillpub/post--augmented-rnns',
// doiSuffix: 1,
//
// Assigned from journal
//
this.journal = {};
// journal: {
// 'title': 'Distill',
// 'full_title': 'Distill',
// 'abbrev_title': 'Distill',
// 'url': 'http://distill.pub',
// 'doi': '10.23915/distill',
// 'publisherName': 'Distill Working Group',
// 'publisherEmail': 'admin@distill.pub',
// 'issn': '2476-0757',
// 'editors': [...],
// 'committee': [...]
// }
// volume: 1,
// issue: 9,
this.katex = {};
//
// Assigned from publishing process
//
// githubCompareUpdatesUrl: 'https://github.com/distillpub/post--augmented-rnns/compare/1596e094d8943d2dc0ea445d92071129c6419c59...3bd9209e0c24d020f87cf6152dcecc6017cbc193',
// updatedDate: 2017-03-21T07:13:16.000Z,
// doi: '10.23915/distill.00001',
this.doi = undefined;
this.publishedDate = undefined;
}
// Example:
// title: Demo Title Attention and Augmented Recurrent Neural Networks
// published: Jan 10, 2017
// authors:
// - Chris Olah:
// - Shan Carter: http://shancarter.com
// affiliations:
// - Google Brain:
// - Google Brain: http://g.co/brain
//
// Computed Properties
//
// 'http://distill.pub/2016/augmented-rnns',
return _createClass(FrontMatter, [{
key: "url",
get: function get() {
if (this._url) {
return this._url;
} else if (this.distillPath && this.journal.url) {
return this.journal.url + '/' + this.distillPath;
} else if (this.journal.url) {
return this.journal.url;
}
}
// 'https://github.com/distillpub/post--augmented-rnns',
,
set: function set(value) {
this._url = value;
}
}, {
key: "githubUrl",
get: function get() {
if (this.githubPath) {
return 'https://github.com/' + this.githubPath;
} else {
return undefined;
}
}
// TODO resolve differences in naming of URL/Url/url.
// 'http://distill.pub/2016/augmented-rnns/thumbnail.jpg',
}, {
key: "previewURL",
get: function get() {
return this._previewURL ? this._previewURL : this.url + '/thumbnail.jpg';
}
// 'Thu, 08 Sep 2016 00:00:00 -0700',
,
set: function set(value) {
this._previewURL = value;
}
}, {
key: "publishedDateRFC",
get: function get() {
return RFC(this.publishedDate);
}
// 'Thu, 08 Sep 2016 00:00:00 -0700',
}, {
key: "updatedDateRFC",
get: function get() {
return RFC(this.updatedDate);
}
// 2016,
}, {
key: "publishedYear",
get: function get() {
return this.publishedDate.getFullYear();
}
// 'Sept',
}, {
key: "publishedMonth",
get: function get() {
return months[this.publishedDate.getMonth()];
}
// 8,
}, {
key: "publishedDay",
get: function get() {
return this.publishedDate.getDate();
}
// '09',
}, {
key: "publishedMonthPadded",
get: function get() {
return zeroPad(this.publishedDate.getMonth() + 1);
}
// '08',
}, {
key: "publishedDayPadded",
get: function get() {
return zeroPad(this.publishedDate.getDate());
}
}, {
key: "publishedISODateOnly",
get: function get() {
return this.publishedDate.toISOString().split('T')[0];
}
}, {
key: "volume",
get: function get() {
var volume = this.publishedYear - 2015;
if (volume < 1) {
throw new Error('Invalid publish date detected during computing volume');
}
return volume;
}
}, {
key: "issue",
get: function get() {
return this.publishedDate.getMonth() + 1;
}
// 'Olah & Carter',
}, {
key: "concatenatedAuthors",
get: function get() {
if (this.authors.length > 2) {
return this.authors[0].lastName + ', et al.';
} else if (this.authors.length === 2) {
return this.authors[0].lastName + ' & ' + this.authors[1].lastName;
} else if (this.authors.length === 1) {
return this.authors[0].lastName;
}
}
// 'Olah, Chris and Carter, Shan',
}, {
key: "bibtexAuthors",
get: function get() {
return this.authors.map(function (author) {
return author.lastName + ', ' + author.firstName;
}).join(' and ');
}
// 'olah2016attention'
}, {
key: "slug",
get: function get() {
var slug = '';
if (this.authors.length) {
slug += this.authors[0].lastName.toLowerCase();
slug += this.publishedYear;
slug += this.title.split(' ')[0].toLowerCase();
}
return slug || 'Untitled';
}
}, {
key: "bibliographyEntries",
get: function get() {
var _this = this;
return new Map(this.citations.map(function (citationKey) {
var entry = _this.bibliography.get(citationKey);
return [citationKey, entry];
}));
}
}, {
key: "bibliography",
get: function get() {
return this._bibliography;
},
set: function set(bibliography) {
if (bibliography instanceof Map) {
this._bibliography = bibliography;
} else if (_typeof(bibliography) === 'object') {
this._bibliography = mapFromObject(bibliography);
}
}
}, {
key: "assignToObject",
value: function assignToObject(target) {
Object.assign(target, this);
target.bibliography = objectFromMap(this.bibliographyEntries);
target.url = this.url;
target.doi = this.doi;
target.githubUrl = this.githubUrl;
target.previewURL = this.previewURL;
if (this.publishedDate) {
target.volume = this.volume;
target.issue = this.issue;
target.publishedDateRFC = this.publishedDateRFC;
target.publishedYear = this.publishedYear;
target.publishedMonth = this.publishedMonth;
target.publishedDay = this.publishedDay;
target.publishedMonthPadded = this.publishedMonthPadded;
target.publishedDayPadded = this.publishedDayPadded;
}
if (this.updatedDate) {
target.updatedDateRFC = this.updatedDateRFC;
}
target.concatenatedAuthors = this.concatenatedAuthors;
target.bibtexAuthors = this.bibtexAuthors;
target.slug = this.slug;
}
}], [{
key: "fromObject",
value: function fromObject(source) {
var frontMatter = new FrontMatter();
Object.assign(frontMatter, source);
return frontMatter;
}
}]);
}(); // Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
var Mutating = function Mutating(superclass) {
return /*#__PURE__*/function (_superclass) {
function _class() {
var _this2;
_classCallCheck(this, _class);
_this2 = _callSuper(this, _class);
// set up mutation observer
var options = {
childList: true,
characterData: true,
subtree: true
};
var observer = new MutationObserver(function () {
observer.disconnect();
_this2.renderIfPossible();
observer.observe(_this2, options);
});
// ...and listen for changes
observer.observe(_this2, options);
return _this2;
}
_inherits(_class, _superclass);
return _createClass(_class, [{
key: "connectedCallback",
value: function connectedCallback() {
_superPropGet(_class, "connectedCallback", this, 3)([]);
this.renderIfPossible();
}
// potential TODO: check if this is enough for all our usecases
// maybe provide a custom function to tell if we have enough information to render
}, {
key: "renderIfPossible",
value: function renderIfPossible() {
if (this.textContent && this.root) {
this.renderContent();
}
}
}, {
key: "renderContent",
value: function renderContent() {
console.error("Your class ".concat(this.constructor.name, " must provide a custom renderContent() method!"));
}
}]);
}(superclass); // end class
}; // end mixin function
// Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
/*global ShadyCSS*/
var Template = function Template(name, templateString) {
var useShadow = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : true;
return function (superclass) {
var template = document.createElement('template');
template.innerHTML = templateString;
if (useShadow && 'ShadyCSS' in window) {
ShadyCSS.prepareTemplate(template, name);
}
return /*#__PURE__*/function (_superclass2) {
function _class2() {
var _this3;
_classCallCheck(this, _class2);
_this3 = _callSuper(this, _class2);
_this3.clone = document.importNode(template.content, true);
if (useShadow) {
_this3.attachShadow({
mode: 'open'
});
_this3.shadowRoot.appendChild(_this3.clone);
}
return _this3;
}
_inherits(_class2, _superclass2);
return _createClass(_class2, [{
key: "connectedCallback",
value: function connectedCallback() {
if (this.hasAttribute('distill-prerendered')) {
return;
}
if (useShadow) {
if ('ShadyCSS' in window) {
ShadyCSS.styleElement(this);
}
} else {
this.insertBefore(this.clone, this.firstChild);
}
}
}, {
key: "root",
get: function get() {
if (useShadow) {
return this.shadowRoot;
} else {
return this;
}
}
/* TODO: Are we using these? Should we even? */
}, {
key: "$",
value: function $(query) {
return this.root.querySelector(query);
}
}, {
key: "$$",
value: function $$(query) {
return this.root.querySelectorAll(query);
}
}], [{
key: "is",
get: function get() {
return name;
}
}]);
}(superclass);
};
};
var math = "/*\n * Copyright 2018 The Distill Template Authors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nspan.katex-display {\n text-align: left;\n padding: 8px 0 8px 0;\n margin: 0.5em 0 0.5em 1em;\n}\n\nspan.katex {\n -webkit-font-smoothing: antialiased;\n color: rgba(0, 0, 0, 0.8);\n font-size: 1.18em;\n}\n";
// Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// This is a straight concatenation of code from KaTeX's contrib folder,
// but we aren't using some of their helpers that don't work well outside a browser environment.
/*global katex */
var findEndOfMath = function findEndOfMath(delimiter, text, startIndex) {
// Adapted from
// https://github.com/Khan/perseus/blob/master/src/perseus-markdown.jsx
var index = startIndex;
var braceLevel = 0;
var delimLength = delimiter.length;
while (index < text.length) {
var character = text[index];
if (braceLevel <= 0 && text.slice(index, index + delimLength) === delimiter) {
return index;
} else if (character === "\\") {
index++;
} else if (character === "{") {
braceLevel++;
} else if (character === "}") {
braceLevel--;
}
index++;
}
return -1;
};
var splitAtDelimiters = function splitAtDelimiters(startData, leftDelim, rightDelim, display) {
var finalData = [];
for (var i = 0; i < startData.length; i++) {
if (startData[i].type === "text") {
var text = startData[i].data;
var lookingForLeft = true;
var currIndex = 0;
var nextIndex = void 0;
nextIndex = text.indexOf(leftDelim);
if (nextIndex !== -1) {
currIndex = nextIndex;
finalData.push({
type: "text",
data: text.slice(0, currIndex)
});
lookingForLeft = false;
}
while (true) {
// eslint-disable-line no-constant-condition
if (lookingForLeft) {
nextIndex = text.indexOf(leftDelim, currIndex);
if (nextIndex === -1) {
break;
}
finalData.push({
type: "text",
data: text.slice(currIndex, nextIndex)
});
currIndex = nextIndex;
} else {
nextIndex = findEndOfMath(rightDelim, text, currIndex + leftDelim.length);
if (nextIndex === -1) {
break;
}
finalData.push({
type: "math",
data: text.slice(currIndex + leftDelim.length, nextIndex),
rawData: text.slice(currIndex, nextIndex + rightDelim.length),
display: display
});
currIndex = nextIndex + rightDelim.length;
}
lookingForLeft = !lookingForLeft;
}
finalData.push({
type: "text",
data: text.slice(currIndex)
});
} else {
finalData.push(startData[i]);
}
}
return finalData;
};
var splitWithDelimiters = function splitWithDelimiters(text, delimiters) {
var data = [{
type: "text",
data: text
}];
for (var i = 0; i < delimiters.length; i++) {
var delimiter = delimiters[i];
data = splitAtDelimiters(data, delimiter.left, delimiter.right, delimiter.display || false);
}
return data;
};
/* Note: optionsCopy is mutated by this method. If it is ever exposed in the
* API, we should copy it before mutating.
*/
var renderMathInText = function renderMathInText(text, optionsCopy) {
var data = splitWithDelimiters(text, optionsCopy.delimiters);
var fragment = document.createDocumentFragment();
for (var i = 0; i < data.length; i++) {
if (data[i].type === "text") {
fragment.appendChild(document.createTextNode(data[i].data));
} else {
var tag = document.createElement("d-math");
var _math = data[i].data;
// Override any display mode defined in the settings with that
// defined by the text itself
optionsCopy.displayMode = data[i].display;
try {
tag.textContent = _math;
if (optionsCopy.displayMode) {
tag.setAttribute("block", "");
}
} catch (e) {
if (!(e instanceof katex.ParseError)) {
throw e;
}
optionsCopy.errorCallback("KaTeX auto-render: Failed to parse `" + data[i].data + "` with ", e);
fragment.appendChild(document.createTextNode(data[i].rawData));
continue;
}
fragment.appendChild(tag);
}
}
return fragment;
};
var _renderElem = function renderElem(elem, optionsCopy) {
for (var i = 0; i < elem.childNodes.length; i++) {
var childNode = elem.childNodes[i];
if (childNode.nodeType === 3) {
// Text node
var text = childNode.textContent;
if (optionsCopy.mightHaveMath(text)) {
var frag = renderMathInText(text, optionsCopy);
i += frag.childNodes.length - 1;
elem.replaceChild(frag, childNode);
}
} else if (childNode.nodeType === 1) {
// Element node
var shouldRender = optionsCopy.ignoredTags.indexOf(childNode.nodeName.toLowerCase()) === -1;
if (shouldRender) {
_renderElem(childNode, optionsCopy);
}
}
// Otherwise, it's something else, and ignore it.
}
};
var defaultAutoRenderOptions = {
delimiters: [{
left: "$$",
right: "$$",
display: true
}, {
left: "\\[",
right: "\\]",
display: true
}, {
left: "\\(",
right: "\\)",
display: false
}
// LaTeX uses this, but it ruins the display of normal `$` in text:
// {left: '$', right: '$', display: false},
],
ignoredTags: ["script", "noscript", "style", "textarea", "pre", "code", "svg"],
errorCallback: function errorCallback(msg, err) {
console.error(msg, err);
}
};
var renderMathInElement = function renderMathInElement(elem, options) {
if (!elem) {
throw new Error("No element provided to render");
}
var optionsCopy = Object.assign({}, defaultAutoRenderOptions, options);
var delimiterStrings = optionsCopy.delimiters.flatMap(function (d) {
return [d.left, d.right];
});
var mightHaveMath = function mightHaveMath(text) {
return delimiterStrings.some(function (d) {
return text.indexOf(d) !== -1;
});
};
optionsCopy.mightHaveMath = mightHaveMath;
_renderElem(elem, optionsCopy);
};
// Copyright 2018 The Distill Template Authors
var katexJSURL = 'https://distill.pub/third-party/katex/katex.min.js';
var katexCSSTag = '';
var T = Template('d-math', "\n".concat(katexCSSTag, "\n\n\n"));
// DMath, not Math, because that would conflict with the JS built-in
var DMath = /*#__PURE__*/function (_Mutating) {
function DMath() {
_classCallCheck(this, DMath);
return _callSuper(this, DMath, arguments);
}
_inherits(DMath, _Mutating);
return _createClass(DMath, [{
key: "options",
get: function get() {
var localOptions = {
displayMode: this.hasAttribute('block')
};
return Object.assign(localOptions, DMath.katexOptions);
}
}, {
key: "connectedCallback",
value: function connectedCallback() {
_superPropGet(DMath, "connectedCallback", this, 3)([]);
if (!DMath.katexAdded) {
DMath.addKatex();
}
}
}, {
key: "renderContent",
value: function renderContent() {
if (typeof katex !== 'undefined') {
var container = this.root.querySelector('#katex-container');
katex.render(this.textContent, container, this.options);
}
}
}], [{
key: "katexOptions",
get: function get() {
if (!DMath._katexOptions) {
DMath._katexOptions = {
delimiters: [{
'left': '$$',
'right': '$$',
'display': false
}]
};
}
return DMath._katexOptions;
},
set: function set(options) {
DMath._katexOptions = options;
if (DMath.katexOptions.delimiters) {
if (!DMath.katexAdded) {
DMath.addKatex();
} else {
DMath.katexLoadedCallback();
}
}
}
}, {
key: "katexLoadedCallback",
value: function katexLoadedCallback() {
// render all d-math tags
var mathTags = document.querySelectorAll('d-math');
var _iterator = _createForOfIteratorHelper(mathTags),
_step;
try {
for (_iterator.s(); !(_step = _iterator.n()).done;) {
var mathTag = _step.value;
mathTag.renderContent();
}
// transform inline delimited math to d-math tags
} catch (err) {
_iterator.e(err);
} finally {
_iterator.f();
}
if (DMath.katexOptions.delimiters) {
renderMathInElement(document.body, DMath.katexOptions);
}
}
}, {
key: "addKatex",
value: function addKatex() {
// css tag can use this convenience function
document.head.insertAdjacentHTML('beforeend', katexCSSTag);
// script tag has to be created to work properly
var scriptTag = document.createElement('script');
scriptTag.src = katexJSURL;
scriptTag.async = true;
scriptTag.onload = DMath.katexLoadedCallback;
scriptTag.crossorigin = 'anonymous';
document.head.appendChild(scriptTag);
DMath.katexAdded = true;
}
}]);
}(Mutating(T(HTMLElement)));
DMath.katexAdded = false;
DMath.inlineMathRendered = false;
window.DMath = DMath; // TODO: check if this can be removed, or if we should expose a distill global
// Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
function collect_citations() {
var dom = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : document;
var citations = new Set();
var citeTags = dom.querySelectorAll("d-cite");
var _iterator2 = _createForOfIteratorHelper(citeTags),
_step2;
try {
for (_iterator2.s(); !(_step2 = _iterator2.n()).done;) {
var tag = _step2.value;
var keyString = tag.getAttribute("key") || tag.getAttribute("bibtex-key");
var keys = keyString.split(",").map(function (k) {
return k.trim();
});
var _iterator3 = _createForOfIteratorHelper(keys),
_step3;
try {
for (_iterator3.s(); !(_step3 = _iterator3.n()).done;) {
var key = _step3.value;
citations.add(key);
}
} catch (err) {
_iterator3.e(err);
} finally {
_iterator3.f();
}
}
} catch (err) {
_iterator2.e(err);
} finally {
_iterator2.f();
}
return _toConsumableArray(citations);
}
function author_string(ent, template, sep, finalSep) {
if (ent.author == null) {
return "";
}
var names = ent.author.split(" and ");
var name_strings = names.map(function (name) {
name = name.trim();
if (name.indexOf(",") != -1) {
var last = name.split(",")[0].trim();
var firsts = name.split(",")[1];
} else if (name.indexOf(" ") != -1) {
var last = name.split(" ").slice(-1)[0].trim();
var firsts = name.split(" ").slice(0, -1).join(" ");
} else {
var last = name.trim();
}
var initials = "";
if (firsts != undefined) {
initials = firsts.trim().split(" ").map(function (s) {
return s.trim()[0];
});
initials = initials.join(".") + ".";
}
return template.replace("${F}", firsts).replace("${L}", last).replace("${I}", initials).trim(); // in case one of first or last was empty
});
if (names.length > 1) {
var str = name_strings.slice(0, names.length - 1).join(sep);
str += (finalSep || sep) + name_strings[names.length - 1];
return str;
} else {
return name_strings[0];
}
}
function venue_string(ent) {
var cite = ent.journal || ent.booktitle || "";
if ("volume" in ent) {
var issue = ent.issue || ent.number;
issue = issue != undefined ? "(" + issue + ")" : "";
cite += ", Vol " + ent.volume + issue;
}
if ("pages" in ent) {
cite += ", pp. " + ent.pages;
}
if (cite != "") cite += ". ";
if ("publisher" in ent) {
cite += ent.publisher;
if (cite[cite.length - 1] != ".") cite += ".";
}
return cite;
}
function link_string(ent) {
if ("url" in ent) {
var url = ent.url;
var arxiv_match = /arxiv\.org\/abs\/([0-9\.]*)/.exec(url);
if (arxiv_match != null) {
url = "http://arxiv.org/pdf/".concat(arxiv_match[1], ".pdf");
}
if (url.slice(-4) == ".pdf") {
var label = "PDF";
} else if (url.slice(-5) == ".html") {
var label = "HTML";
}
return " [").concat(label || "link", "]");
} /* else if ("doi" in ent){
return ` [DOI]`;
}*/else {
return "";
}
}
function doi_string(ent, new_line) {
if ("doi" in ent) {
return "".concat(new_line ? " " : "", " DOI: ").concat(ent.doi, "");
} else {
return "";
}
}
function title_string(ent) {
return '' + ent.title + " ";
}
function bibliography_cite(ent, fancy) {
if (ent) {
var cite = title_string(ent);
cite += link_string(ent) + " ";
if (ent.author) {
cite += author_string(ent, "${L}, ${I}", ", ", " and ");
if (ent.year || ent.date) {
cite += ", ";
}
}
if (ent.year || ent.date) {
cite += (ent.year || ent.date) + ". ";
} else {
cite += ". ";
}
cite += venue_string(ent);
cite += doi_string(ent);
return cite;
/*var cite = author_string(ent, "${L}, ${I}", ", ", " and ");
if (ent.year || ent.date){
cite += ", " + (ent.year || ent.date) + ". "
} else {
cite += ". "
}
cite += "" + ent.title + ". ";
cite += venue_string(ent);
cite += doi_string(ent);
cite += link_string(ent);
return cite*/
} else {
return "?";
}
}
function hover_cite(ent) {
if (ent) {
var cite = "";
cite += "" + ent.title + "";
cite += link_string(ent);
cite += " ";
var a_str = author_string(ent, "${I} ${L}", ", ") + ".";
var v_str = venue_string(ent).trim() + " " + ent.year + ". " + doi_string(ent, true);
if ((a_str + v_str).length < Math.min(40, ent.title.length)) {
cite += a_str + " " + v_str;
} else {
cite += a_str + " " + v_str;
}
return cite;
} else {
return "?";
}
}
function domContentLoaded() {
return ['interactive', 'complete'].indexOf(document.readyState) !== -1;
}
// Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
function _moveLegacyAffiliationFormatIntoArray(frontMatter) {
// authors used to have propoerties "affiliation" and "affiliationURL".
// We now encourage using an array for affiliations containing objects with
// properties "name" and "url".
var _iterator4 = _createForOfIteratorHelper(frontMatter.authors),
_step4;
try {
for (_iterator4.s(); !(_step4 = _iterator4.n()).done;) {
var author = _step4.value;
var hasOldStyle = Boolean(author.affiliation);
var hasNewStyle = Boolean(author.affiliations);
if (!hasOldStyle) continue;
if (hasNewStyle) {
console.warn("Author ".concat(author.author, " has both old-style (\"affiliation\" & \"affiliationURL\") and new style (\"affiliations\") affiliation information!"));
} else {
var newAffiliation = {
"name": author.affiliation
};
if (author.affiliationURL) newAffiliation.url = author.affiliationURL;
author.affiliations = [newAffiliation];
}
}
} catch (err) {
_iterator4.e(err);
} finally {
_iterator4.f();
}
return frontMatter;
}
function parseFrontmatter(element) {
var scriptTag = element.firstElementChild;
if (scriptTag) {
var type = scriptTag.getAttribute('type');
if (type.split('/')[1] == 'json') {
var content = scriptTag.textContent;
var parsed = JSON.parse(content);
return _moveLegacyAffiliationFormatIntoArray(parsed);
} else {
console.error('Distill only supports JSON frontmatter tags anymore; no more YAML.');
}
} else {
console.error('You added a frontmatter tag but did not provide a script tag with front matter data in it. Please take a look at our templates.');
}
return {};
}
var FrontMatter$1 = /*#__PURE__*/function (_HTMLElement) {
function FrontMatter$1() {
var _this4;
_classCallCheck(this, FrontMatter$1);
_this4 = _callSuper(this, FrontMatter$1);
var options = {
childList: true,
characterData: true,
subtree: true
};
var observer = new MutationObserver(function (entries) {
var _iterator5 = _createForOfIteratorHelper(entries),
_step5;
try {
for (_iterator5.s(); !(_step5 = _iterator5.n()).done;) {
var entry = _step5.value;
if (entry.target.nodeName === 'SCRIPT' || entry.type === 'characterData') {
var data = parseFrontmatter(_this4);
_this4.notify(data);
}
}
} catch (err) {
_iterator5.e(err);
} finally {
_iterator5.f();
}
});
observer.observe(_this4, options);
return _this4;
}
_inherits(FrontMatter$1, _HTMLElement);
return _createClass(FrontMatter$1, [{
key: "notify",
value: function notify(data) {
var options = {
detail: data,
bubbles: true
};
var event = new CustomEvent('onFrontMatterChanged', options);
document.dispatchEvent(event);
}
}], [{
key: "is",
get: function get() {
return 'd-front-matter';
}
}]);
}(/*#__PURE__*/_wrapNativeSuper(HTMLElement)); // Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// no appendix -> add appendix
// title in front, no h1 -> add it
// no title in front, h1 -> read and put into frontMatter
// footnote -> footnote list
// break up bib
// if citation, no bib-list -> add citation-list
// if authors, no byline -> add byline
function optionalComponents(dom, data) {
var body = dom.body;
var article = body.querySelector('d-article');
// If we don't have an article tag, something weird is going on—giving up.
if (!article) {
console.warn('No d-article tag found; skipping adding optional components!');
return;
}
var byline = dom.querySelector('d-byline');
if (!byline) {
if (data.authors) {
byline = dom.createElement('d-byline');
body.insertBefore(byline, article);
} else {
console.warn('No authors found in front matter; please add them before submission!');
}
}
var title = dom.querySelector('d-title');
if (!title) {
title = dom.createElement('d-title');
body.insertBefore(title, byline);
}
var h1 = title.querySelector('h1');
if (!h1) {
h1 = dom.createElement('h1');
h1.textContent = data.title;
title.insertBefore(h1, title.firstChild);
}
var hasPassword = typeof data.password !== 'undefined';
var interstitial = body.querySelector('d-interstitial');
if (hasPassword && !interstitial) {
var inBrowser = typeof window !== 'undefined';
var onLocalhost = inBrowser && window.location.hostname.includes('localhost');
if (!inBrowser || !onLocalhost) {
interstitial = dom.createElement('d-interstitial');
interstitial.password = data.password;
body.insertBefore(interstitial, body.firstChild);
}
} else if (!hasPassword && interstitial) {
interstitial.parentElement.removeChild(this);
}
var appendix = dom.querySelector('d-appendix');
if (!appendix) {
appendix = dom.createElement('d-appendix');
dom.body.appendChild(appendix);
}
var footnoteList = dom.querySelector('d-footnote-list');
if (!footnoteList) {
footnoteList = dom.createElement('d-footnote-list');
appendix.appendChild(footnoteList);
}
var citationList = dom.querySelector('d-citation-list');
if (!citationList) {
citationList = dom.createElement('d-citation-list');
appendix.appendChild(citationList);
}
}
// Copyright 2018 The Distill Template Authors
var frontMatter = new FrontMatter();
var Controller = {
frontMatter: frontMatter,
waitingOn: {
bibliography: [],
citations: []
},
listeners: {
onCiteKeyCreated: function onCiteKeyCreated(event) {
var _event$detail = _slicedToArray(event.detail, 2),
citeTag = _event$detail[0],
keys = _event$detail[1];
// ensure we have citations
if (!frontMatter.citationsCollected) {
// console.debug('onCiteKeyCreated, but unresolved dependency ("citations"). Enqueing.');
Controller.waitingOn.citations.push(function () {
return Controller.listeners.onCiteKeyCreated(event);
});
return;
}
// ensure we have a loaded bibliography
if (!frontMatter.bibliographyParsed) {
// console.debug('onCiteKeyCreated, but unresolved dependency ("bibliography"). Enqueing.');
Controller.waitingOn.bibliography.push(function () {
return Controller.listeners.onCiteKeyCreated(event);
});
return;
}
var numbers = keys.map(function (key) {
return frontMatter.citations.indexOf(key);
});
citeTag.numbers = numbers;
var entries = keys.map(function (key) {
return frontMatter.bibliography.get(key);
});
citeTag.entries = entries;
},
onCiteKeyChanged: function onCiteKeyChanged() {
// const [citeTag, keys] = event.detail;
// update citations
frontMatter.citations = collect_citations();
frontMatter.citationsCollected = true;
var _iterator6 = _createForOfIteratorHelper(Controller.waitingOn.citations.slice()),
_step6;
try {
for (_iterator6.s(); !(_step6 = _iterator6.n()).done;) {
var waitingCallback = _step6.value;
waitingCallback();
}
// update bibliography
} catch (err) {
_iterator6.e(err);
} finally {
_iterator6.f();
}
var citationListTag = document.querySelector("d-citation-list");
var bibliographyEntries = new Map(frontMatter.citations.map(function (citationKey) {
return [citationKey, frontMatter.bibliography.get(citationKey)];
}));
citationListTag.citations = bibliographyEntries;
var citeTags = document.querySelectorAll("d-cite");
var _iterator7 = _createForOfIteratorHelper(citeTags),
_step7;
try {
for (_iterator7.s(); !(_step7 = _iterator7.n()).done;) {
var citeTag = _step7.value;
console.log(citeTag);
var keys = citeTag.keys;
var numbers = keys.map(function (key) {
return frontMatter.citations.indexOf(key);
});
citeTag.numbers = numbers;
var entries = keys.map(function (key) {
return frontMatter.bibliography.get(key);
});
citeTag.entries = entries;
}
} catch (err) {
_iterator7.e(err);
} finally {
_iterator7.f();
}
},
onCiteKeyRemoved: function onCiteKeyRemoved(event) {
Controller.listeners.onCiteKeyChanged(event);
},
onBibliographyChanged: function onBibliographyChanged(event) {
var citationListTag = document.querySelector("d-citation-list");
var bibliography = event.detail;
frontMatter.bibliography = bibliography;
frontMatter.bibliographyParsed = true;
var _iterator8 = _createForOfIteratorHelper(Controller.waitingOn.bibliography.slice()),
_step8;
try {
for (_iterator8.s(); !(_step8 = _iterator8.n()).done;) {
var waitingCallback = _step8.value;
waitingCallback();
}
// ensure we have citations
} catch (err) {
_iterator8.e(err);
} finally {
_iterator8.f();
}
if (!frontMatter.citationsCollected) {
Controller.waitingOn.citations.push(function () {
Controller.listeners.onBibliographyChanged({
target: event.target,
detail: event.detail
});
});
return;
}
if (citationListTag.hasAttribute("distill-prerendered")) {
console.debug("Citation list was prerendered; not updating it.");
} else {
var entries = new Map(frontMatter.citations.map(function (citationKey) {
return [citationKey, frontMatter.bibliography.get(citationKey)];
}));
citationListTag.citations = entries;
}
},
onFootnoteChanged: function onFootnoteChanged() {
// const footnote = event.detail;
//TODO: optimize to only update current footnote
var footnotesList = document.querySelector("d-footnote-list");
if (footnotesList) {
var footnotes = document.querySelectorAll("d-footnote");
footnotesList.footnotes = footnotes;
}
},
onFrontMatterChanged: function onFrontMatterChanged(event) {
var data = event.detail;
mergeFromYMLFrontmatter(frontMatter, data);
var interstitial = document.querySelector("d-interstitial");
if (interstitial) {
if (typeof frontMatter.password !== "undefined") {
interstitial.password = frontMatter.password;
} else {
interstitial.parentElement.removeChild(interstitial);
}
}
var prerendered = document.body.hasAttribute("distill-prerendered");
if (!prerendered && domContentLoaded()) {
optionalComponents(document, frontMatter);
var appendix = document.querySelector("distill-appendix");
if (appendix) {
appendix.frontMatter = frontMatter;
}
var _byline = document.querySelector("d-byline");
if (_byline) {
_byline.frontMatter = frontMatter;
}
if (data.katex) {
DMath.katexOptions = data.katex;
}
}
},
DOMContentLoaded: function DOMContentLoaded() {
if (Controller.loaded) {
console.warn("Controller received DOMContentLoaded but was already loaded!");
return;
} else if (!domContentLoaded()) {
console.warn("Controller received DOMContentLoaded at document.readyState: " + document.readyState + "!");
return;
} else {
Controller.loaded = true;
console.debug("Runlevel 4: Controller running DOMContentLoaded");
}
var frontMatterTag = document.querySelector("d-front-matter");
if (frontMatterTag) {
var data = parseFrontmatter(frontMatterTag);
Controller.listeners.onFrontMatterChanged({
detail: data
});
}
// Resolving "citations" dependency due to initial DOM load
frontMatter.citations = collect_citations();
frontMatter.citationsCollected = true;
var _iterator9 = _createForOfIteratorHelper(Controller.waitingOn.citations.slice()),
_step9;
try {
for (_iterator9.s(); !(_step9 = _iterator9.n()).done;) {
var _waitingCallback = _step9.value;
_waitingCallback();
}
} catch (err) {
_iterator9.e(err);
} finally {
_iterator9.f();
}
if (frontMatter.bibliographyParsed) {
var _iterator10 = _createForOfIteratorHelper(Controller.waitingOn.bibliography.slice()),
_step10;
try {
for (_iterator10.s(); !(_step10 = _iterator10.n()).done;) {
var waitingCallback = _step10.value;
waitingCallback();
}
} catch (err) {
_iterator10.e(err);
} finally {
_iterator10.f();
}
}
var footnotesList = document.querySelector("d-footnote-list");
if (footnotesList) {
var footnotes = document.querySelectorAll("d-footnote");
footnotesList.footnotes = footnotes;
}
}
} // listeners
}; // Controller
var base = "/*\n * Copyright 2018 The Distill Template Authors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nhtml {\n font-size: 14px;\n\tline-height: 1.6em;\n /* font-family: \"Libre Franklin\", \"Helvetica Neue\", sans-serif; */\n font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Oxygen, Ubuntu, Cantarell, \"Fira Sans\", \"Droid Sans\", \"Helvetica Neue\", Arial, sans-serif;\n /*, \"Apple Color Emoji\", \"Segoe UI Emoji\", \"Segoe UI Symbol\";*/\n text-size-adjust: 100%;\n -ms-text-size-adjust: 100%;\n -webkit-text-size-adjust: 100%;\n}\n\n@media(min-width: 768px) {\n html {\n font-size: 16px;\n }\n}\n\nbody {\n margin: 0;\n}\n\na {\n color: #004276;\n}\n\nfigure {\n margin: 0;\n}\n\ntable {\n\tborder-collapse: collapse;\n\tborder-spacing: 0;\n}\n\ntable th {\n\ttext-align: left;\n}\n\ntable thead {\n border-bottom: 1px solid rgba(0, 0, 0, 0.05);\n}\n\ntable thead th {\n padding-bottom: 0.5em;\n}\n\ntable tbody :first-child td {\n padding-top: 0.5em;\n}\n\npre {\n overflow: auto;\n max-width: 100%;\n}\n\np {\n margin-top: 0;\n margin-bottom: 1em;\n}\n\nsup, sub {\n vertical-align: baseline;\n position: relative;\n top: -0.4em;\n line-height: 1em;\n}\n\nsub {\n top: 0.4em;\n}\n\n.kicker,\n.marker {\n font-size: 15px;\n font-weight: 600;\n color: rgba(0, 0, 0, 0.5);\n}\n\n\n/* Headline */\n\n@media(min-width: 1024px) {\n d-title h1 span {\n display: block;\n }\n}\n\n/* Figure */\n\nfigure {\n position: relative;\n margin-bottom: 2.5em;\n margin-top: 1.5em;\n}\n\nfigcaption+figure {\n\n}\n\nfigure img {\n width: 100%;\n}\n\nfigure svg text,\nfigure svg tspan {\n}\n\nfigcaption,\n.figcaption {\n color: rgba(0, 0, 0, 0.6);\n font-size: 12px;\n line-height: 1.5em;\n}\n\n@media(min-width: 1024px) {\nfigcaption,\n.figcaption {\n font-size: 13px;\n }\n}\n\nfigure.external img {\n background: white;\n border: 1px solid rgba(0, 0, 0, 0.1);\n box-shadow: 0 1px 8px rgba(0, 0, 0, 0.1);\n padding: 18px;\n box-sizing: border-box;\n}\n\nfigcaption a {\n color: rgba(0, 0, 0, 0.6);\n}\n\nfigcaption b,\nfigcaption strong, {\n font-weight: 600;\n color: rgba(0, 0, 0, 1.0);\n}\n";
var layout = "/*\n * Copyright 2018 The Distill Template Authors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n@supports not (display: grid) {\n .base-grid,\n distill-header,\n d-title,\n d-abstract,\n d-article,\n d-appendix,\n distill-appendix,\n d-byline,\n d-footnote-list,\n d-citation-list,\n distill-footer {\n display: block;\n padding: 8px;\n }\n}\n\n.base-grid,\ndistill-header,\nd-title,\nd-abstract,\nd-article,\nd-appendix,\ndistill-appendix,\nd-byline,\nd-footnote-list,\nd-citation-list,\ndistill-footer {\n display: grid;\n justify-items: stretch;\n grid-template-columns: [screen-start] 8px [page-start kicker-start text-start gutter-start middle-start] 1fr 1fr 1fr 1fr 1fr 1fr 1fr 1fr [text-end page-end gutter-end kicker-end middle-end] 8px [screen-end];\n grid-column-gap: 8px;\n}\n\n.grid {\n display: grid;\n grid-column-gap: 8px;\n}\n\n@media(min-width: 768px) {\n .base-grid,\n distill-header,\n d-title,\n d-abstract,\n d-article,\n d-appendix,\n distill-appendix,\n d-byline,\n d-footnote-list,\n d-citation-list,\n distill-footer {\n grid-template-columns: [screen-start] 1fr [page-start kicker-start middle-start text-start] 45px 45px 45px 45px 45px 45px 45px 45px [ kicker-end text-end gutter-start] 45px [middle-end] 45px [page-end gutter-end] 1fr [screen-end];\n grid-column-gap: 16px;\n }\n\n .grid {\n grid-column-gap: 16px;\n }\n}\n\n@media(min-width: 1000px) {\n .base-grid,\n distill-header,\n d-title,\n d-abstract,\n d-article,\n d-appendix,\n distill-appendix,\n d-byline,\n d-footnote-list,\n d-citation-list,\n distill-footer {\n grid-template-columns: [screen-start] 1fr [page-start kicker-start] 50px [middle-start] 50px [text-start kicker-end] 50px 50px 50px 50px 50px 50px 50px 50px [text-end gutter-start] 50px [middle-end] 50px [page-end gutter-end] 1fr [screen-end];\n grid-column-gap: 16px;\n }\n\n .grid {\n grid-column-gap: 16px;\n }\n}\n\n@media(min-width: 1180px) {\n .base-grid,\n distill-header,\n d-title,\n d-abstract,\n d-article,\n d-appendix,\n distill-appendix,\n d-byline,\n d-footnote-list,\n d-citation-list,\n distill-footer {\n grid-template-columns: [screen-start] 1fr [page-start kicker-start] 60px [middle-start] 60px [text-start kicker-end] 60px 60px 60px 60px 60px 60px 60px 60px [text-end gutter-start] 60px [middle-end] 60px [page-end gutter-end] 1fr [screen-end];\n grid-column-gap: 32px;\n }\n\n .grid {\n grid-column-gap: 32px;\n }\n}\n\n\n\n\n.base-grid {\n grid-column: screen;\n}\n\n/* .l-body,\nd-article > * {\n grid-column: text;\n}\n\n.l-page,\nd-title > *,\nd-figure {\n grid-column: page;\n} */\n\n.l-gutter {\n grid-column: gutter;\n}\n\n.l-text,\n.l-body {\n grid-column: text;\n}\n\n.l-page {\n grid-column: page;\n}\n\n.l-body-outset {\n grid-column: middle;\n}\n\n.l-page-outset {\n grid-column: page;\n}\n\n.l-screen {\n grid-column: screen;\n}\n\n.l-screen-inset {\n grid-column: screen;\n padding-left: 16px;\n padding-left: 16px;\n}\n\n\n/* Aside */\n\nd-article aside {\n grid-column: gutter;\n font-size: 12px;\n line-height: 1.6em;\n color: rgba(0, 0, 0, 0.6)\n}\n\n@media(min-width: 768px) {\n aside {\n grid-column: gutter;\n }\n\n .side {\n grid-column: gutter;\n }\n}\n";
var print = "/*\n * Copyright 2018 The Distill Template Authors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n@media print {\n\n @page {\n size: 8in 11in;\n @bottom-right {\n content: counter(page) \" of \" counter(pages);\n }\n }\n\n html {\n /* no general margins -- CSS Grid takes care of those */\n }\n\n p, code {\n page-break-inside: avoid;\n }\n\n h2, h3 {\n page-break-after: avoid;\n }\n\n d-header {\n visibility: hidden;\n }\n\n d-footer {\n display: none!important;\n }\n\n}\n";
var byline = "/*\n * Copyright 2018 The Distill Template Authors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nd-byline {\n contain: style;\n overflow: hidden;\n border-top: 1px solid rgba(0, 0, 0, 0.1);\n font-size: 0.8rem;\n line-height: 1.8em;\n padding: 1.5rem 0;\n min-height: 1.8em;\n}\n\n\nd-byline .byline {\n grid-template-columns: 1fr 1fr;\n grid-column: text;\n}\n\n@media(min-width: 768px) {\n d-byline .byline {\n grid-template-columns: 1fr 1fr 1fr 1fr;\n }\n}\n\nd-byline .authors-affiliations {\n grid-column-end: span 2;\n grid-template-columns: 1fr 1fr;\n margin-bottom: 1em;\n}\n\n@media(min-width: 768px) {\n d-byline .authors-affiliations {\n margin-bottom: 0;\n }\n}\n\nd-byline h3 {\n font-size: 0.6rem;\n font-weight: 400;\n color: rgba(0, 0, 0, 0.5);\n margin: 0;\n text-transform: uppercase;\n}\n\nd-byline p {\n margin: 0;\n}\n\nd-byline a,\nd-article d-byline a {\n color: rgba(0, 0, 0, 0.8);\n text-decoration: none;\n border-bottom: none;\n}\n\nd-article d-byline a:hover {\n text-decoration: underline;\n border-bottom: none;\n}\n\nd-byline p.author {\n font-weight: 500;\n}\n\nd-byline .affiliations {\n\n}\n";
var article = "/*\n * Copyright 2018 The Distill Template Authors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nd-article {\n contain: layout style;\n overflow-x: hidden;\n border-top: 1px solid rgba(0, 0, 0, 0.1);\n padding-top: 2rem;\n color: rgba(0, 0, 0, 0.8);\n}\n\nd-article > * {\n grid-column: text;\n}\n\n@media(min-width: 768px) {\n d-article {\n font-size: 16px;\n }\n}\n\n@media(min-width: 1024px) {\n d-article {\n font-size: 1.06rem;\n line-height: 1.7em;\n }\n}\n\n\n/* H2 */\n\n\nd-article .marker {\n text-decoration: none;\n border: none;\n counter-reset: section;\n grid-column: kicker;\n line-height: 1.7em;\n}\n\nd-article .marker:hover {\n border: none;\n}\n\nd-article .marker span {\n padding: 0 3px 4px;\n border-bottom: 1px solid rgba(0, 0, 0, 0.2);\n position: relative;\n top: 4px;\n}\n\nd-article .marker:hover span {\n color: rgba(0, 0, 0, 0.7);\n border-bottom: 1px solid rgba(0, 0, 0, 0.7);\n}\n\nd-article h2 {\n font-weight: 600;\n font-size: 24px;\n line-height: 1.25em;\n margin: 2rem 0 1.5rem 0;\n border-bottom: 1px solid rgba(0, 0, 0, 0.1);\n padding-bottom: 1rem;\n}\n\n@media(min-width: 1024px) {\n d-article h2 {\n font-size: 36px;\n }\n}\n\n/* H3 */\n\nd-article h3 {\n font-weight: 700;\n font-size: 18px;\n line-height: 1.4em;\n margin-bottom: 1em;\n margin-top: 2em;\n}\n\n@media(min-width: 1024px) {\n d-article h3 {\n font-size: 20px;\n }\n}\n\n/* H4 */\n\nd-article h4 {\n font-weight: 600;\n text-transform: uppercase;\n font-size: 14px;\n line-height: 1.4em;\n}\n\nd-article a {\n color: inherit;\n}\n\nd-article p,\nd-article ul,\nd-article ol,\nd-article blockquote {\n margin-top: 0;\n margin-bottom: 1em;\n margin-left: 0;\n margin-right: 0;\n}\n\nd-article blockquote {\n border-left: 2px solid rgba(0, 0, 0, 0.2);\n padding-left: 2em;\n font-style: italic;\n color: rgba(0, 0, 0, 0.6);\n}\n\nd-article a {\n border-bottom: 1px solid rgba(0, 0, 0, 0.4);\n text-decoration: none;\n}\n\nd-article a:hover {\n border-bottom: 1px solid rgba(0, 0, 0, 0.8);\n}\n\nd-article .link {\n text-decoration: underline;\n cursor: pointer;\n}\n\nd-article ul,\nd-article ol {\n padding-left: 24px;\n}\n\nd-article li {\n margin-bottom: 0.2em;\n margin-left: 0;\n padding-left: 0;\n}\n\nd-article li:last-child {\n margin-bottom: 0;\n}\n\nd-article pre {\n font-size: 14px;\n margin-bottom: 20px;\n}\n\nd-article hr {\n grid-column: screen;\n width: 100%;\n border: none;\n border-bottom: 1px solid rgba(0, 0, 0, 0.1);\n margin-top: 60px;\n margin-bottom: 60px;\n}\n\nd-article section {\n margin-top: 60px;\n margin-bottom: 60px;\n}\n\nd-article span.equation-mimic {\n font-family: georgia;\n font-size: 115%;\n font-style: italic;\n}\n\nd-article > d-code,\nd-article section > d-code {\n display: block;\n}\n\nd-article > d-math[block],\nd-article section > d-math[block] {\n display: block;\n}\n\n@media (max-width: 768px) {\n d-article > d-code,\n d-article section > d-code,\n d-article > d-math[block],\n d-article section > d-math[block] {\n overflow-x: scroll;\n -ms-overflow-style: none; // IE 10+\n overflow: -moz-scrollbars-none; // Firefox\n }\n\n d-article > d-code::-webkit-scrollbar,\n d-article section > d-code::-webkit-scrollbar,\n d-article > d-math[block]::-webkit-scrollbar,\n d-article section > d-math[block]::-webkit-scrollbar {\n display: none; // Safari and Chrome\n }\n}\n\nd-article .citation {\n color: #668;\n cursor: pointer;\n}\n\nd-include {\n width: auto;\n display: block;\n}\n\nd-figure {\n contain: layout style;\n}\n\n/* KaTeX */\n\n.katex, .katex-prerendered {\n contain: style;\n display: inline-block;\n}\n\n/* Tables */\n\nd-article table {\n border-collapse: collapse;\n margin-bottom: 1.5rem;\n border-bottom: 1px solid rgba(0, 0, 0, 0.2);\n}\n\nd-article table th {\n border-bottom: 1px solid rgba(0, 0, 0, 0.2);\n}\n\nd-article table td {\n border-bottom: 1px solid rgba(0, 0, 0, 0.05);\n}\n\nd-article table tr:last-of-type td {\n border-bottom: none;\n}\n\nd-article table th,\nd-article table td {\n font-size: 15px;\n padding: 2px 8px;\n}\n\nd-article table tbody :first-child td {\n padding-top: 2px;\n}\n";
var title = "/*\n * Copyright 2018 The Distill Template Authors\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\nd-title {\n padding: 2rem 0 1.5rem;\n contain: layout style;\n overflow-x: hidden;\n}\n\n@media(min-width: 768px) {\n d-title {\n padding: 4rem 0 1.5rem;\n }\n}\n\nd-title h1 {\n grid-column: text;\n font-size: 40px;\n font-weight: 700;\n line-height: 1.1em;\n margin: 0 0 0.5rem;\n}\n\n@media(min-width: 768px) {\n d-title h1 {\n font-size: 50px;\n }\n}\n\nd-title p {\n font-weight: 300;\n font-size: 1.2rem;\n line-height: 1.55em;\n grid-column: text;\n}\n\nd-title .status {\n margin-top: 0px;\n font-size: 12px;\n color: #009688;\n opacity: 0.8;\n grid-column: kicker;\n}\n\nd-title .status span {\n line-height: 1;\n display: inline-block;\n padding: 6px 0;\n border-bottom: 1px solid #80cbc4;\n font-size: 11px;\n text-transform: uppercase;\n}\n";
// Copyright 2018 The Distill Template Authors
var styles = base + layout + title + byline + article + math + print;
function makeStyleTag(dom) {
var styleTagId = 'distill-prerendered-styles';
var prerenderedTag = dom.getElementById(styleTagId);
if (!prerenderedTag) {
var styleTag = dom.createElement('style');
styleTag.id = styleTagId;
styleTag.type = 'text/css';
var cssTextTag = dom.createTextNode(styles);
styleTag.appendChild(cssTextTag);
var firstScriptTag = dom.head.querySelector('script');
dom.head.insertBefore(styleTag, firstScriptTag);
}
}
// Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
function addPolyfill(polyfill, polyfillLoadedCallback) {
console.debug('Runlevel 0: Polyfill required: ' + polyfill.name);
var script = document.createElement('script');
script.src = polyfill.url;
script.async = false;
if (polyfillLoadedCallback) {
script.onload = function () {
polyfillLoadedCallback(polyfill);
};
}
script.onerror = function () {
new Error('Runlevel 0: Polyfills failed to load script ' + polyfill.name);
};
document.head.appendChild(script);
}
var polyfills = [{
name: 'WebComponents',
support: function support() {
return 'customElements' in window && 'attachShadow' in Element.prototype && 'getRootNode' in Element.prototype && 'content' in document.createElement('template') && 'Promise' in window && 'from' in Array;
},
url: 'https://distill.pub/third-party/polyfills/webcomponents-lite.js'
}, {
name: 'IntersectionObserver',
support: function support() {
return 'IntersectionObserver' in window && 'IntersectionObserverEntry' in window;
},
url: 'https://distill.pub/third-party/polyfills/intersection-observer.js'
}];
var Polyfills = /*#__PURE__*/function () {
function Polyfills() {
_classCallCheck(this, Polyfills);
}
return _createClass(Polyfills, null, [{
key: "browserSupportsAllFeatures",
value: function browserSupportsAllFeatures() {
return polyfills.every(function (poly) {
return poly.support();
});
}
}, {
key: "load",
value: function load(callback) {
// Define an intermediate callback that checks if all is loaded.
var polyfillLoaded = function polyfillLoaded(polyfill) {
polyfill.loaded = true;
console.debug('Runlevel 0: Polyfill has finished loading: ' + polyfill.name);
// console.debug(window[polyfill.name]);
if (Polyfills.neededPolyfills.every(function (poly) {
return poly.loaded;
})) {
console.debug('Runlevel 0: All required polyfills have finished loading.');
console.debug('Runlevel 0->1.');
window.distillRunlevel = 1;
callback();
}
};
// Add polyfill script tags
var _iterator11 = _createForOfIteratorHelper(Polyfills.neededPolyfills),
_step11;
try {
for (_iterator11.s(); !(_step11 = _iterator11.n()).done;) {
var polyfill = _step11.value;
addPolyfill(polyfill, polyfillLoaded);
}
} catch (err) {
_iterator11.e(err);
} finally {
_iterator11.f();
}
}
}, {
key: "neededPolyfills",
get: function get() {
if (!Polyfills._neededPolyfills) {
Polyfills._neededPolyfills = polyfills.filter(function (poly) {
return !poly.support();
});
}
return Polyfills._neededPolyfills;
}
}]);
}(); // Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// const marginSmall = 16;
// const marginLarge = 3 * marginSmall;
// const margin = marginSmall + marginLarge;
// const gutter = marginSmall;
// const outsetAmount = margin / 2;
// const numCols = 4;
// const numGutters = numCols - 1;
// const columnWidth = (768 - 2 * marginLarge - numGutters * gutter) / numCols;
//
// const screenwidth = 768;
// const pageWidth = screenwidth - 2 * marginLarge;
// const bodyWidth = pageWidth - columnWidth - gutter;
function body(selector) {
return "".concat(selector, " {\n grid-column: left / text;\n }\n ");
}
// Copyright 2018 The Distill Template Authors
var T$1 = Template('d-abstract', "\n\n\n\n"));
var Abstract = /*#__PURE__*/function (_T$) {
function Abstract() {
_classCallCheck(this, Abstract);
return _callSuper(this, Abstract, arguments);
}
_inherits(Abstract, _T$);
return _createClass(Abstract);
}(T$1(HTMLElement)); // Copyright 2018 The Distill Template Authors
var T$2 = Template('d-appendix', "\n\n\n", false);
var Appendix = /*#__PURE__*/function (_T$2) {
function Appendix() {
_classCallCheck(this, Appendix);
return _callSuper(this, Appendix, arguments);
}
_inherits(Appendix, _T$2);
return _createClass(Appendix);
}(T$2(HTMLElement)); // Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// import { Template } from '../mixins/template';
// import { Controller } from '../controller';
var isOnlyWhitespace = /^\s*$/;
var Article = /*#__PURE__*/function (_HTMLElement2) {
function Article() {
var _this5;
_classCallCheck(this, Article);
_this5 = _callSuper(this, Article);
new MutationObserver(function (mutations) {
var _iterator12 = _createForOfIteratorHelper(mutations),
_step12;
try {
for (_iterator12.s(); !(_step12 = _iterator12.n()).done;) {
var mutation = _step12.value;
var _iterator13 = _createForOfIteratorHelper(mutation.addedNodes),
_step13;
try {
for (_iterator13.s(); !(_step13 = _iterator13.n()).done;) {
var addedNode = _step13.value;
switch (addedNode.nodeName) {
case '#text':
{
// usually text nodes are only linebreaks.
var text = addedNode.nodeValue;
if (!isOnlyWhitespace.test(text)) {
console.warn('Use of unwrapped text in distill articles is discouraged as it breaks layout! Please wrap any text in a or
tag. We found the following text: ' + text);
var wrapper = document.createElement('span');
wrapper.innerHTML = addedNode.nodeValue;
addedNode.parentNode.insertBefore(wrapper, addedNode);
addedNode.parentNode.removeChild(addedNode);
}
}
break;
}
}
} catch (err) {
_iterator13.e(err);
} finally {
_iterator13.f();
}
}
} catch (err) {
_iterator12.e(err);
} finally {
_iterator12.f();
}
}).observe(_this5, {
childList: true
});
return _this5;
}
_inherits(Article, _HTMLElement2);
return _createClass(Article, null, [{
key: "is",
get: function get() {
return 'd-article';
}
}]);
}(/*#__PURE__*/_wrapNativeSuper(HTMLElement));
var commonjsGlobal = typeof globalThis !== 'undefined' ? globalThis : typeof window !== 'undefined' ? window : typeof __webpack_require__.g !== 'undefined' ? __webpack_require__.g : typeof self !== 'undefined' ? self : {};
function createCommonjsModule(fn, module) {
return module = {
exports: {}
}, fn(module, module.exports), module.exports;
}
var bibtexParse = createCommonjsModule(function (module, exports) {
/* start bibtexParse 0.0.22 */
//Original work by Henrik Muehe (c) 2010
//
//CommonJS port by Mikola Lysenko 2013
//
//Port to Browser lib by ORCID / RCPETERS
//
//Issues:
//no comment handling within strings
//no string concatenation
//no variable values yet
//Grammar implemented here:
//bibtex -> (string | preamble | comment | entry)*;
//string -> '@STRING' '{' key_equals_value '}';
//preamble -> '@PREAMBLE' '{' value '}';
//comment -> '@COMMENT' '{' value '}';
//entry -> '@' key '{' key ',' key_value_list '}';
//key_value_list -> key_equals_value (',' key_equals_value)*;
//key_equals_value -> key '=' value;
//value -> value_quotes | value_braces | key;
//value_quotes -> '"' .*? '"'; // not quite
//value_braces -> '{' .*? '"'; // not quite
(function (exports) {
function BibtexParser() {
this.months = ["jan", "feb", "mar", "apr", "may", "jun", "jul", "aug", "sep", "oct", "nov", "dec"];
this.notKey = [',', '{', '}', ' ', '='];
this.pos = 0;
this.input = "";
this.entries = new Array();
this.currentEntry = "";
this.setInput = function (t) {
this.input = t;
};
this.getEntries = function () {
return this.entries;
};
this.isWhitespace = function (s) {
return s == ' ' || s == '\r' || s == '\t' || s == '\n';
};
this.match = function (s, canCommentOut) {
if (canCommentOut == undefined || canCommentOut == null) canCommentOut = true;
this.skipWhitespace(canCommentOut);
if (this.input.substring(this.pos, this.pos + s.length) == s) {
this.pos += s.length;
} else {
throw "Token mismatch, expected " + s + ", found " + this.input.substring(this.pos);
}
this.skipWhitespace(canCommentOut);
};
this.tryMatch = function (s, canCommentOut) {
if (canCommentOut == undefined || canCommentOut == null) canCommentOut = true;
this.skipWhitespace(canCommentOut);
if (this.input.substring(this.pos, this.pos + s.length) == s) {
return true;
} else {
return false;
}
};
/* when search for a match all text can be ignored, not just white space */
this.matchAt = function () {
while (this.input.length > this.pos && this.input[this.pos] != '@') {
this.pos++;
}
if (this.input[this.pos] == '@') {
return true;
}
return false;
};
this.skipWhitespace = function (canCommentOut) {
while (this.isWhitespace(this.input[this.pos])) {
this.pos++;
}
if (this.input[this.pos] == "%" && canCommentOut == true) {
while (this.input[this.pos] != "\n") {
this.pos++;
}
this.skipWhitespace(canCommentOut);
}
};
this.value_braces = function () {
var bracecount = 0;
this.match("{", false);
var start = this.pos;
var escaped = false;
while (true) {
if (!escaped) {
if (this.input[this.pos] == '}') {
if (bracecount > 0) {
bracecount--;
} else {
var end = this.pos;
this.match("}", false);
return this.input.substring(start, end);
}
} else if (this.input[this.pos] == '{') {
bracecount++;
} else if (this.pos >= this.input.length - 1) {
throw "Unterminated value";
}
}
if (this.input[this.pos] == '\\' && escaped == false) escaped = true;else escaped = false;
this.pos++;
}
};
this.value_comment = function () {
var str = '';
var brcktCnt = 0;
while (!(this.tryMatch("}", false) && brcktCnt == 0)) {
str = str + this.input[this.pos];
if (this.input[this.pos] == '{') brcktCnt++;
if (this.input[this.pos] == '}') brcktCnt--;
if (this.pos >= this.input.length - 1) {
throw "Unterminated value:" + this.input.substring(start);
}
this.pos++;
}
return str;
};
this.value_quotes = function () {
this.match('"', false);
var start = this.pos;
var escaped = false;
while (true) {
if (!escaped) {
if (this.input[this.pos] == '"') {
var end = this.pos;
this.match('"', false);
return this.input.substring(start, end);
} else if (this.pos >= this.input.length - 1) {
throw "Unterminated value:" + this.input.substring(start);
}
}
if (this.input[this.pos] == '\\' && escaped == false) escaped = true;else escaped = false;
this.pos++;
}
};
this.single_value = function () {
var start = this.pos;
if (this.tryMatch("{")) {
return this.value_braces();
} else if (this.tryMatch('"')) {
return this.value_quotes();
} else {
var k = this.key();
if (k.match("^[0-9]+$")) return k;else if (this.months.indexOf(k.toLowerCase()) >= 0) return k.toLowerCase();else throw "Value expected:" + this.input.substring(start) + ' for key: ' + k;
}
};
this.value = function () {
var values = [];
values.push(this.single_value());
while (this.tryMatch("#")) {
this.match("#");
values.push(this.single_value());
}
return values.join("");
};
this.key = function () {
var start = this.pos;
while (true) {
if (this.pos >= this.input.length) {
throw "Runaway key";
} // а-яА-Я is Cyrillic
//console.log(this.input[this.pos]);
if (this.notKey.indexOf(this.input[this.pos]) >= 0) {
return this.input.substring(start, this.pos);
} else {
this.pos++;
}
}
};
this.key_equals_value = function () {
var key = this.key();
if (this.tryMatch("=")) {
this.match("=");
var val = this.value();
return [key, val];
} else {
throw "... = value expected, equals sign missing:" + this.input.substring(this.pos);
}
};
this.key_value_list = function () {
var kv = this.key_equals_value();
this.currentEntry['entryTags'] = {};
this.currentEntry['entryTags'][kv[0]] = kv[1];
while (this.tryMatch(",")) {
this.match(",");
// fixes problems with commas at the end of a list
if (this.tryMatch("}")) {
break;
}
kv = this.key_equals_value();
this.currentEntry['entryTags'][kv[0]] = kv[1];
}
};
this.entry_body = function (d) {
this.currentEntry = {};
this.currentEntry['citationKey'] = this.key();
this.currentEntry['entryType'] = d.substring(1);
this.match(",");
this.key_value_list();
this.entries.push(this.currentEntry);
};
this.directive = function () {
this.match("@");
return "@" + this.key();
};
this.preamble = function () {
this.currentEntry = {};
this.currentEntry['entryType'] = 'PREAMBLE';
this.currentEntry['entry'] = this.value_comment();
this.entries.push(this.currentEntry);
};
this.comment = function () {
this.currentEntry = {};
this.currentEntry['entryType'] = 'COMMENT';
this.currentEntry['entry'] = this.value_comment();
this.entries.push(this.currentEntry);
};
this.entry = function (d) {
this.entry_body(d);
};
this.bibtex = function () {
while (this.matchAt()) {
var d = this.directive();
this.match("{");
if (d == "@STRING") {
this.string();
} else if (d == "@PREAMBLE") {
this.preamble();
} else if (d == "@COMMENT") {
this.comment();
} else {
this.entry(d);
}
this.match("}");
}
};
}
exports.toJSON = function (bibtex) {
var b = new BibtexParser();
b.setInput(bibtex);
b.bibtex();
return b.entries;
};
/* added during hackathon don't hate on me */
exports.toBibtex = function (json) {
var out = '';
for (var i in json) {
out += "@" + json[i].entryType;
out += '{';
if (json[i].citationKey) out += json[i].citationKey + ', ';
if (json[i].entry) out += json[i].entry;
if (json[i].entryTags) {
var tags = '';
for (var jdx in json[i].entryTags) {
if (tags.length != 0) tags += ', ';
tags += jdx + '= {' + json[i].entryTags[jdx] + '}';
}
out += tags;
}
out += '}\n\n';
}
return out;
};
})(exports);
/* end bibtexParse */
});
// Copyright 2018 The Distill Template Authors
function normalizeTag(string) {
return string.replace(/[\t\n ]+/g, ' ').replace(/{\\["^`.'acu~Hvs]( )?([a-zA-Z])}/g, function (full, x, _char) {
return _char;
}).replace(/{\\([a-zA-Z])}/g, function (full, _char2) {
return _char2;
});
}
function parseBibtex(bibtex) {
var bibliography = new Map();
var parsedEntries = bibtexParse.toJSON(bibtex);
var _iterator14 = _createForOfIteratorHelper(parsedEntries),
_step14;
try {
for (_iterator14.s(); !(_step14 = _iterator14.n()).done;) {
var entry = _step14.value;
// normalize tags; note entryTags is an object, not Map
for (var _i = 0, _Object$entries = Object.entries(entry.entryTags); _i < _Object$entries.length; _i++) {
var _Object$entries$_i = _slicedToArray(_Object$entries[_i], 2),
key = _Object$entries$_i[0],
value = _Object$entries$_i[1];
entry.entryTags[key.toLowerCase()] = normalizeTag(value);
}
entry.entryTags.type = entry.entryType;
// add to bibliography
bibliography.set(entry.citationKey, entry.entryTags);
}
} catch (err) {
_iterator14.e(err);
} finally {
_iterator14.f();
}
return bibliography;
}
function serializeFrontmatterToBibtex(frontMatter) {
return "@article{".concat(frontMatter.slug, ",\n author = {").concat(frontMatter.bibtexAuthors, "},\n title = {").concat(frontMatter.title, "},\n journal = {").concat(frontMatter.journal.title, "},\n year = {").concat(frontMatter.publishedYear, "},\n note = {").concat(frontMatter.url, "},\n doi = {").concat(frontMatter.doi, "}\n}");
}
// Copyright 2018 The Distill Template Authors
var Bibliography = /*#__PURE__*/function (_HTMLElement3) {
function Bibliography() {
var _this6;
_classCallCheck(this, Bibliography);
_this6 = _callSuper(this, Bibliography);
// set up mutation observer
var options = {
childList: true,
characterData: true,
subtree: true
};
var observer = new MutationObserver(function (entries) {
var _iterator15 = _createForOfIteratorHelper(entries),
_step15;
try {
for (_iterator15.s(); !(_step15 = _iterator15.n()).done;) {
var entry = _step15.value;
if (entry.target.nodeName === 'SCRIPT' || entry.type === 'characterData') {
_this6.parseIfPossible();
}
}
} catch (err) {
_iterator15.e(err);
} finally {
_iterator15.f();
}
});
observer.observe(_this6, options);
return _this6;
}
_inherits(Bibliography, _HTMLElement3);
return _createClass(Bibliography, [{
key: "connectedCallback",
value: function connectedCallback() {
var _this7 = this;
requestAnimationFrame(function () {
_this7.parseIfPossible();
});
}
}, {
key: "parseIfPossible",
value: function parseIfPossible() {
var scriptTag = this.querySelector('script');
if (!scriptTag) return;
if (scriptTag.type == 'text/bibtex') {
var newBibtex = scriptTag.textContent;
if (this.bibtex !== newBibtex) {
this.bibtex = newBibtex;
var bibliography = parseBibtex(this.bibtex);
this.notify(bibliography);
}
} else if (scriptTag.type == 'text/json') {
var _bibliography = new Map(JSON.parse(scriptTag.textContent));
this.notify(_bibliography);
} else {
console.warn('Unsupported bibliography script tag type: ' + scriptTag.type);
}
}
}, {
key: "notify",
value: function notify(bibliography) {
var options = {
detail: bibliography,
bubbles: true
};
var event = new CustomEvent('onBibliographyChanged', options);
this.dispatchEvent(event);
}
/* observe 'src' attribute */
}, {
key: "receivedBibtex",
value: function receivedBibtex(event) {
var bibliography = parseBibtex(event.target.response);
this.notify(bibliography);
}
}, {
key: "attributeChangedCallback",
value: function attributeChangedCallback(name, oldValue, newValue) {
var _this8 = this;
var oReq = new XMLHttpRequest();
oReq.onload = function (e) {
return _this8.receivedBibtex(e);
};
oReq.onerror = function () {
return console.warn("Could not load Bibtex! (tried ".concat(newValue, ")"));
};
oReq.responseType = 'text';
oReq.open('GET', newValue, true);
oReq.send();
}
}], [{
key: "is",
get: function get() {
return 'd-bibliography';
}
}, {
key: "observedAttributes",
get: function get() {
return ['src'];
}
}]);
}(/*#__PURE__*/_wrapNativeSuper(HTMLElement)); // Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// import style from '../styles/d-byline.css';
function bylineTemplate(frontMatter) {
return "\n
");
}
}], [{
key: "observedAttributes",
get: function get() {
return ["key", "bibtex-key"];
}
}]);
}(T$3(HTMLElement)); // Copyright 2018 The Distill Template Authors
var styles$1 = "\nd-citation-list {\n contain: style;\n}\n\nd-citation-list .references {\n grid-column: text;\n}\n\nd-citation-list .references .title {\n font-weight: 500;\n}\n";
function renderCitationList(element, entries) {
var dom = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : document;
if (entries.size > 0) {
element.style.display = '';
var list = element.querySelector('.references');
if (list) {
list.innerHTML = '';
} else {
var stylesTag = dom.createElement('style');
stylesTag.innerHTML = styles$1;
element.appendChild(stylesTag);
var heading = dom.createElement('h3');
heading.id = 'references';
heading.textContent = 'References';
element.appendChild(heading);
list = dom.createElement('ol');
list.id = 'references-list';
list.className = 'references';
element.appendChild(list);
}
var _iterator16 = _createForOfIteratorHelper(entries),
_step16;
try {
for (_iterator16.s(); !(_step16 = _iterator16.n()).done;) {
var _step16$value = _slicedToArray(_step16.value, 2),
key = _step16$value[0],
entry = _step16$value[1];
var listItem = dom.createElement('li');
listItem.id = key;
listItem.innerHTML = bibliography_cite(entry);
list.appendChild(listItem);
}
} catch (err) {
_iterator16.e(err);
} finally {
_iterator16.f();
}
} else {
element.style.display = 'none';
}
}
var CitationList = /*#__PURE__*/function (_HTMLElement5) {
function CitationList() {
_classCallCheck(this, CitationList);
return _callSuper(this, CitationList, arguments);
}
_inherits(CitationList, _HTMLElement5);
return _createClass(CitationList, [{
key: "connectedCallback",
value: function connectedCallback() {
if (!this.hasAttribute('distill-prerendered')) {
this.style.display = 'none';
}
}
}, {
key: "citations",
set: function set(citations) {
renderCitationList(this, citations);
}
}], [{
key: "is",
get: function get() {
return 'd-citation-list';
}
}]);
}(/*#__PURE__*/_wrapNativeSuper(HTMLElement));
var prism = createCommonjsModule(function (module) {
/* **********************************************
Begin prism-core.js
********************************************** */
var _self = typeof window !== 'undefined' ? window // if in browser
: typeof WorkerGlobalScope !== 'undefined' && self instanceof WorkerGlobalScope ? self // if in worker
: {} // if in node js
;
/**
* Prism: Lightweight, robust, elegant syntax highlighting
* MIT license http://www.opensource.org/licenses/mit-license.php/
* @author Lea Verou http://lea.verou.me
*/
var Prism = function (_self) {
// Private helper vars
var lang = /\blang(?:uage)?-([\w-]+)\b/i;
var uniqueId = 0;
var _ = {
manual: _self.Prism && _self.Prism.manual,
disableWorkerMessageHandler: _self.Prism && _self.Prism.disableWorkerMessageHandler,
util: {
encode: function encode(tokens) {
if (tokens instanceof Token) {
return new Token(tokens.type, encode(tokens.content), tokens.alias);
} else if (Array.isArray(tokens)) {
return tokens.map(encode);
} else {
return tokens.replace(/&/g, '&').replace(/' + env.content + '';
};
/**
* @param {string} text
* @param {LinkedList} tokenList
* @param {any} grammar
* @param {LinkedListNode} startNode
* @param {number} startPos
* @param {boolean} [oneshot=false]
* @param {string} [target]
*/
function matchGrammar(text, tokenList, grammar, startNode, startPos, oneshot, target) {
for (var token in grammar) {
if (!grammar.hasOwnProperty(token) || !grammar[token]) {
continue;
}
var patterns = grammar[token];
patterns = Array.isArray(patterns) ? patterns : [patterns];
for (var j = 0; j < patterns.length; ++j) {
if (target && target == token + ',' + j) {
return;
}
var pattern = patterns[j],
inside = pattern.inside,
lookbehind = !!pattern.lookbehind,
greedy = !!pattern.greedy,
lookbehindLength = 0,
alias = pattern.alias;
if (greedy && !pattern.pattern.global) {
// Without the global flag, lastIndex won't work
var flags = pattern.pattern.toString().match(/[imsuy]*$/)[0];
pattern.pattern = RegExp(pattern.pattern.source, flags + 'g');
}
pattern = pattern.pattern || pattern;
for (
// iterate the token list and keep track of the current token/string position
var currentNode = startNode.next, pos = startPos; currentNode !== tokenList.tail; pos += currentNode.value.length, currentNode = currentNode.next) {
var str = currentNode.value;
if (tokenList.length > text.length) {
// Something went terribly wrong, ABORT, ABORT!
return;
}
if (str instanceof Token) {
continue;
}
var removeCount = 1; // this is the to parameter of removeBetween
if (greedy && currentNode != tokenList.tail.prev) {
pattern.lastIndex = pos;
var match = pattern.exec(text);
if (!match) {
break;
}
var from = match.index + (lookbehind && match[1] ? match[1].length : 0);
var to = match.index + match[0].length;
var p = pos;
// find the node that contains the match
p += currentNode.value.length;
while (from >= p) {
currentNode = currentNode.next;
p += currentNode.value.length;
}
// adjust pos (and p)
p -= currentNode.value.length;
pos = p;
// the current node is a Token, then the match starts inside another Token, which is invalid
if (currentNode.value instanceof Token) {
continue;
}
// find the last node which is affected by this match
for (var k = currentNode; k !== tokenList.tail && (p < to || typeof k.value === 'string' && !k.prev.value.greedy); k = k.next) {
removeCount++;
p += k.value.length;
}
removeCount--;
// replace with the new match
str = text.slice(pos, p);
match.index -= pos;
} else {
pattern.lastIndex = 0;
var match = pattern.exec(str);
}
if (!match) {
if (oneshot) {
break;
}
continue;
}
if (lookbehind) {
lookbehindLength = match[1] ? match[1].length : 0;
}
var from = match.index + lookbehindLength,
match = match[0].slice(lookbehindLength),
to = from + match.length,
before = str.slice(0, from),
after = str.slice(to);
var removeFrom = currentNode.prev;
if (before) {
removeFrom = addAfter(tokenList, removeFrom, before);
pos += before.length;
}
removeRange(tokenList, removeFrom, removeCount);
var wrapped = new Token(token, inside ? _.tokenize(match, inside) : match, alias, match, greedy);
currentNode = addAfter(tokenList, removeFrom, wrapped);
if (after) {
addAfter(tokenList, currentNode, after);
}
if (removeCount > 1) matchGrammar(text, tokenList, grammar, currentNode.prev, pos, true, token + ',' + j);
if (oneshot) break;
}
}
}
}
/**
* @typedef LinkedListNode
* @property {T} value
* @property {LinkedListNode | null} prev The previous node.
* @property {LinkedListNode | null} next The next node.
* @template T
*/
/**
* @template T
*/
function LinkedList() {
/** @type {LinkedListNode} */
var head = {
value: null,
prev: null,
next: null
};
/** @type {LinkedListNode} */
var tail = {
value: null,
prev: head,
next: null
};
head.next = tail;
/** @type {LinkedListNode} */
this.head = head;
/** @type {LinkedListNode} */
this.tail = tail;
this.length = 0;
}
/**
* Adds a new node with the given value to the list.
* @param {LinkedList} list
* @param {LinkedListNode} node
* @param {T} value
* @returns {LinkedListNode} The added node.
* @template T
*/
function addAfter(list, node, value) {
// assumes that node != list.tail && values.length >= 0
var next = node.next;
var newNode = {
value: value,
prev: node,
next: next
};
node.next = newNode;
next.prev = newNode;
list.length++;
return newNode;
}
/**
* Removes `count` nodes after the given node. The given node will not be removed.
* @param {LinkedList} list
* @param {LinkedListNode} node
* @param {number} count
* @template T
*/
function removeRange(list, node, count) {
var next = node.next;
for (var i = 0; i < count && next !== list.tail; i++) {
next = next.next;
}
node.next = next;
next.prev = node;
list.length -= i;
}
/**
* @param {LinkedList} list
* @returns {T[]}
* @template T
*/
function toArray(list) {
var array = [];
var node = list.head.next;
while (node !== list.tail) {
array.push(node.value);
node = node.next;
}
return array;
}
if (!_self.document) {
if (!_self.addEventListener) {
// in Node.js
return _;
}
if (!_.disableWorkerMessageHandler) {
// In worker
_self.addEventListener('message', function (evt) {
var message = JSON.parse(evt.data),
lang = message.language,
code = message.code,
immediateClose = message.immediateClose;
_self.postMessage(_.highlight(code, _.languages[lang], lang));
if (immediateClose) {
_self.close();
}
}, false);
}
return _;
}
//Get current script and highlight
var script = _.util.currentScript();
if (script) {
_.filename = script.src;
if (script.hasAttribute('data-manual')) {
_.manual = true;
}
}
function highlightAutomaticallyCallback() {
if (!_.manual) {
_.highlightAll();
}
}
if (!_.manual) {
// If the document state is "loading", then we'll use DOMContentLoaded.
// If the document state is "interactive" and the prism.js script is deferred, then we'll also use the
// DOMContentLoaded event because there might be some plugins or languages which have also been deferred and they
// might take longer one animation frame to execute which can create a race condition where only some plugins have
// been loaded when Prism.highlightAll() is executed, depending on how fast resources are loaded.
// See https://github.com/PrismJS/prism/issues/2102
var readyState = document.readyState;
if (readyState === 'loading' || readyState === 'interactive' && script && script.defer) {
document.addEventListener('DOMContentLoaded', highlightAutomaticallyCallback);
} else {
if (window.requestAnimationFrame) {
window.requestAnimationFrame(highlightAutomaticallyCallback);
} else {
window.setTimeout(highlightAutomaticallyCallback, 16);
}
}
}
return _;
}(_self);
if (module.exports) {
module.exports = Prism;
}
// hack for components to work correctly in node.js
if (typeof commonjsGlobal !== 'undefined') {
commonjsGlobal.Prism = Prism;
}
/* **********************************************
Begin prism-markup.js
********************************************** */
Prism.languages.markup = {
'comment': //,
'prolog': /<\?[\s\S]+?\?>/,
'doctype': {
pattern: /"'[\]]|"[^"]*"|'[^']*')+(?:\[(?:(?!)*\]\s*)?>/i,
greedy: true
},
'cdata': //i,
'tag': {
pattern: /<\/?(?!\d)[^\s>\/=$<%]+(?:\s(?:\s*[^\s>\/=]+(?:\s*=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+(?=[\s>]))|(?=[\s/>])))+)?\s*\/?>/i,
greedy: true,
inside: {
'tag': {
pattern: /^<\/?[^\s>\/]+/i,
inside: {
'punctuation': /^<\/?/,
'namespace': /^[^\s>\/:]+:/
}
},
'attr-value': {
pattern: /=\s*(?:"[^"]*"|'[^']*'|[^\s'">=]+)/i,
inside: {
'punctuation': [/^=/, {
pattern: /^(\s*)["']|["']$/,
lookbehind: true
}]
}
},
'punctuation': /\/?>/,
'attr-name': {
pattern: /[^\s>\/]+/,
inside: {
'namespace': /^[^\s>\/:]+:/
}
}
}
},
'entity': /&#?[\da-z]{1,8};/i
};
Prism.languages.markup['tag'].inside['attr-value'].inside['entity'] = Prism.languages.markup['entity'];
// Plugin to make entity title show the real entity, idea by Roman Komarov
Prism.hooks.add('wrap', function (env) {
if (env.type === 'entity') {
env.attributes['title'] = env.content.replace(/&/, '&');
}
});
Object.defineProperty(Prism.languages.markup.tag, 'addInlined', {
/**
* Adds an inlined language to markup.
*
* An example of an inlined language is CSS with `\n\n\n\n"));
var Code = /*#__PURE__*/function (_Mutating2) {
function Code() {
_classCallCheck(this, Code);
return _callSuper(this, Code, arguments);
}
_inherits(Code, _Mutating2);
return _createClass(Code, [{
key: "renderContent",
value: function renderContent() {
// check if language can be highlighted
this.languageName = this.getAttribute('language');
if (!this.languageName) {
console.warn('You need to provide a language attribute to your block to let us know how to highlight your code; e.g.:\n zeros = np.zeros(shape).');
return;
}
var language = prism.languages[this.languageName];
if (language == undefined) {
console.warn("Distill does not yet support highlighting your code block in \"".concat(this.languageName, "'."));
return;
}
var content = this.textContent;
var codeTag = this.shadowRoot.querySelector('#code-container');
if (this.hasAttribute('block')) {
// normalize the tab indents
content = content.replace(/\n/, '');
var tabs = content.match(/\s*/);
content = content.replace(new RegExp('\n' + tabs, 'g'), '\n');
content = content.trim();
// wrap code block in pre tag if needed
if (codeTag.parentNode instanceof ShadowRoot) {
var preTag = document.createElement('pre');
this.shadowRoot.removeChild(codeTag);
preTag.appendChild(codeTag);
this.shadowRoot.appendChild(preTag);
}
}
codeTag.className = "language-".concat(this.languageName);
codeTag.innerHTML = prism.highlight(content, language);
}
}]);
}(Mutating(T$4(HTMLElement))); // Copyright 2018 The Distill Template Authors
var T$5 = Template('d-footnote', "\n\n\n\n
\n \n
\n\n\n\n \n\n\n");
var Footnote = /*#__PURE__*/function (_T$4) {
function Footnote() {
var _this11;
_classCallCheck(this, Footnote);
_this11 = _callSuper(this, Footnote);
var options = {
childList: true,
characterData: true,
subtree: true
};
var observer = new MutationObserver(_this11.notify);
observer.observe(_this11, options);
return _this11;
}
_inherits(Footnote, _T$4);
return _createClass(Footnote, [{
key: "notify",
value: function notify() {
var options = {
detail: this,
bubbles: true
};
var event = new CustomEvent('onFootnoteChanged', options);
document.dispatchEvent(event);
}
}, {
key: "connectedCallback",
value: function connectedCallback() {
var _this12 = this;
// listen and notify about changes to slotted content
// const slot = this.shadowRoot.querySelector('#slot');
// console.warn(slot.textContent);
// slot.addEventListener('slotchange', this.notify);
this.hoverBox = this.root.querySelector('d-hover-box');
window.customElements.whenDefined('d-hover-box').then(function () {
_this12.hoverBox.listen(_this12);
});
// create numeric ID
Footnote.currentFootnoteId += 1;
var IdString = Footnote.currentFootnoteId.toString();
this.root.host.id = 'd-footnote-' + IdString;
// set up hidden hover box
var id = 'dt-fn-hover-box-' + IdString;
this.hoverBox.id = id;
// set up visible footnote marker
var span = this.root.querySelector('#fn-');
span.setAttribute('id', 'fn-' + IdString);
span.setAttribute('data-hover-ref', id);
span.textContent = IdString;
}
}]);
}(T$5(HTMLElement));
Footnote.currentFootnoteId = 0;
// Copyright 2018 The Distill Template Authors
var T$6 = Template('d-footnote-list', "\n\n\n
Footnotes
\n\n", false);
var FootnoteList = /*#__PURE__*/function (_T$5) {
function FootnoteList() {
_classCallCheck(this, FootnoteList);
return _callSuper(this, FootnoteList, arguments);
}
_inherits(FootnoteList, _T$5);
return _createClass(FootnoteList, [{
key: "connectedCallback",
value: function connectedCallback() {
_superPropGet(FootnoteList, "connectedCallback", this, 3)([]);
this.list = this.root.querySelector('ol');
// footnotes list is initially hidden
this.root.style.display = 'none';
// look through document and register existing footnotes
// Store.subscribeTo('footnotes', (footnote) => {
// this.renderFootnote(footnote);
// });
}
// TODO: could optimize this to accept individual footnotes?
}, {
key: "footnotes",
set: function set(footnotes) {
this.list.innerHTML = '';
if (footnotes.length) {
// ensure footnote list is visible
this.root.style.display = '';
var _iterator17 = _createForOfIteratorHelper(footnotes),
_step17;
try {
for (_iterator17.s(); !(_step17 = _iterator17.n()).done;) {
var footnote = _step17.value;
// construct and append list item to show footnote
var listItem = document.createElement('li');
listItem.id = footnote.id + '-listing';
listItem.innerHTML = footnote.innerHTML;
var backlink = document.createElement('a');
backlink.setAttribute('class', 'footnote-backlink');
backlink.setAttribute('target', '_self');
backlink.textContent = '[↩]';
backlink.href = '#' + footnote.id;
listItem.appendChild(backlink);
this.list.appendChild(listItem);
}
} catch (err) {
_iterator17.e(err);
} finally {
_iterator17.f();
}
} else {
// ensure footnote list is invisible
this.root.style.display = 'none';
}
}
}]);
}(T$6(HTMLElement)); // Copyright 2018 The Distill Template Authors
var T$7 = Template('d-hover-box', "\n\n\n
\n
\n \n
\n
\n");
var HoverBox = /*#__PURE__*/function (_T$6) {
function HoverBox() {
_classCallCheck(this, HoverBox);
return _callSuper(this, HoverBox);
}
_inherits(HoverBox, _T$6);
return _createClass(HoverBox, [{
key: "connectedCallback",
value: function connectedCallback() {}
}, {
key: "listen",
value: function listen(element) {
// console.log(element)
this.bindDivEvents(this);
this.bindTriggerEvents(element);
// this.style.display = "block";
}
}, {
key: "bindDivEvents",
value: function bindDivEvents(element) {
var _this13 = this;
// For mice, same behavior as hovering on links
element.addEventListener('mouseover', function () {
if (!_this13.visible) _this13.showAtNode(element);
_this13.stopTimeout();
});
element.addEventListener('mouseout', function () {
_this13.extendTimeout(500);
});
// Don't trigger body touchstart event when touching within box
element.addEventListener('touchstart', function (event) {
event.stopPropagation();
}, {
passive: true
});
// Close box when touching outside box
document.body.addEventListener('touchstart', function () {
_this13.hide();
}, {
passive: true
});
}
}, {
key: "bindTriggerEvents",
value: function bindTriggerEvents(node) {
var _this14 = this;
node.addEventListener('mouseover', function () {
if (!_this14.visible) {
_this14.showAtNode(node);
}
_this14.stopTimeout();
});
node.addEventListener('mouseout', function () {
_this14.extendTimeout(300);
});
node.addEventListener('touchstart', function (event) {
if (_this14.visible) {
_this14.hide();
} else {
_this14.showAtNode(node);
}
// Don't trigger body touchstart event when touching link
event.stopPropagation();
}, {
passive: true
});
}
}, {
key: "show",
value: function show(position) {
this.visible = true;
this.style.display = 'block';
// 10px extra offset from element
this.style.top = Math.round(position[1] + 10) + 'px';
}
}, {
key: "showAtNode",
value: function showAtNode(node) {
// https://developer.mozilla.org/en-US/docs/Web/API/HTMLElement/offsetTop
var bbox = node.getBoundingClientRect();
this.show([node.offsetLeft + bbox.width, node.offsetTop + bbox.height]);
}
}, {
key: "hide",
value: function hide() {
this.visible = false;
this.style.display = 'none';
this.stopTimeout();
}
}, {
key: "stopTimeout",
value: function stopTimeout() {
if (this.timeout) {
clearTimeout(this.timeout);
}
}
}, {
key: "extendTimeout",
value: function extendTimeout(time) {
var _this15 = this;
this.stopTimeout();
this.timeout = setTimeout(function () {
_this15.hide();
}, time);
}
}]);
}(T$7(HTMLElement)); // Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
var Title = /*#__PURE__*/function (_HTMLElement6) {
function Title() {
_classCallCheck(this, Title);
return _callSuper(this, Title, arguments);
}
_inherits(Title, _HTMLElement6);
return _createClass(Title, null, [{
key: "is",
get: function get() {
return 'd-title';
}
}]);
}(/*#__PURE__*/_wrapNativeSuper(HTMLElement)); // Copyright 2018 The Distill Template Authors
var T$8 = Template('d-references', "\n\n", false);
var References = /*#__PURE__*/function (_T$7) {
function References() {
_classCallCheck(this, References);
return _callSuper(this, References, arguments);
}
_inherits(References, _T$7);
return _createClass(References);
}(T$8(HTMLElement)); // Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
var TOC = /*#__PURE__*/function (_HTMLElement7) {
function TOC() {
_classCallCheck(this, TOC);
return _callSuper(this, TOC, arguments);
}
_inherits(TOC, _HTMLElement7);
return _createClass(TOC, [{
key: "connectedCallback",
value: function connectedCallback() {
var _this16 = this;
if (!this.getAttribute('prerendered')) {
window.onload = function () {
var article = document.querySelector('d-article');
var headings = article.querySelectorAll('h2, h3');
renderTOC(_this16, headings);
};
}
}
}], [{
key: "is",
get: function get() {
return 'd-toc';
}
}]);
}(/*#__PURE__*/_wrapNativeSuper(HTMLElement));
function renderTOC(element, headings) {
var ToC = "\n \n \n
Table of contents
\n
";
var _iterator18 = _createForOfIteratorHelper(headings),
_step18;
try {
for (_iterator18.s(); !(_step18 = _iterator18.n()).done;) {
var el = _step18.value;
// should element be included in TOC?
var isInTitle = el.parentElement.tagName == 'D-TITLE';
var isException = el.getAttribute('no-toc');
if (isInTitle || isException) continue;
// create TOC entry
var _title = el.textContent;
var link = '#' + el.getAttribute('id');
var newLine = '
';
element.innerHTML = ToC;
}
// Copyright 2018 The Distill Template Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Figure
//
// d-figure provides a state-machine of visibility events:
//
// scroll out of view
// +----------------+
// *do work here* | |
// +----------------+ +-+---------+ +-v---------+
// | ready +----> onscreen | | offscreen |
// +----------------+ +---------^-+ +---------+-+
// | |
// +----------------+
// scroll into view
//
var Figure = /*#__PURE__*/function (_HTMLElement8) {
function Figure() {
var _this17;
_classCallCheck(this, Figure);
_this17 = _callSuper(this, Figure);
// debugger
_this17._ready = false;
_this17._onscreen = false;
_this17._offscreen = true;
return _this17;
}
_inherits(Figure, _HTMLElement8);
return _createClass(Figure, [{
key: "connectedCallback",
value: function connectedCallback() {
this.loadsWhileScrolling = this.hasAttribute('loadsWhileScrolling');
Figure.marginObserver.observe(this);
Figure.directObserver.observe(this);
}
}, {
key: "disconnectedCallback",
value: function disconnectedCallback() {
Figure.marginObserver.unobserve(this);
Figure.directObserver.unobserve(this);
}
// We use two separate observers:
// One with an extra 1000px margin to warn if the viewpoint gets close,
// And one for the actual on/off screen events
}, {
key: "addEventListener",
value:
// Notify listeners that registered late, too:
function addEventListener(eventName, callback) {
_superPropGet(Figure, "addEventListener", this, 3)([eventName, callback]);
// if we had already dispatched something while presumingly no one was listening, we do so again
// debugger
if (eventName === 'ready') {
if (Figure.readyQueue.indexOf(this) !== -1) {
this._ready = false;
Figure.runReadyQueue();
}
}
if (eventName === 'onscreen') {
this.onscreen();
}
}
// Custom Events
}, {
key: "ready",
value: function ready() {
// debugger
this._ready = true;
Figure.marginObserver.unobserve(this);
var event = new CustomEvent('ready');
this.dispatchEvent(event);
}
}, {
key: "onscreen",
value: function onscreen() {
this._onscreen = true;
this._offscreen = false;
var event = new CustomEvent('onscreen');
this.dispatchEvent(event);
}
}, {
key: "offscreen",
value: function offscreen() {
this._onscreen = false;
this._offscreen = true;
var event = new CustomEvent('offscreen');
this.dispatchEvent(event);
}
}], [{
key: "is",
get: function get() {
return 'd-figure';
}
}, {
key: "readyQueue",
get: function get() {
if (!Figure._readyQueue) {
Figure._readyQueue = [];
}
return Figure._readyQueue;
}
}, {
key: "addToReadyQueue",
value: function addToReadyQueue(figure) {
if (Figure.readyQueue.indexOf(figure) === -1) {
Figure.readyQueue.push(figure);
Figure.runReadyQueue();
}
}
}, {
key: "runReadyQueue",
value: function runReadyQueue() {
// console.log("Checking to run readyQueue, length: " + Figure.readyQueue.length + ", scrolling: " + Figure.isScrolling);
// if (Figure.isScrolling) return;
// console.log("Running ready Queue");
var figure = Figure.readyQueue.sort(function (a, b) {
return a._seenOnScreen - b._seenOnScreen;
}).filter(function (figure) {
return !figure._ready;
}).pop();
if (figure) {
figure.ready();
requestAnimationFrame(Figure.runReadyQueue);
}
}
}, {
key: "marginObserver",
get: function get() {
if (!Figure._marginObserver) {
// if (!('IntersectionObserver' in window)) {
// throw new Error('no interscetionobbserver!');
// }
var viewportHeight = window.innerHeight;
var margin = Math.floor(2 * viewportHeight);
var options = {
rootMargin: margin + 'px 0px ' + margin + 'px 0px',
threshold: 0.01
};
var callback = Figure.didObserveMarginIntersection;
var observer = new IntersectionObserver(callback, options);
Figure._marginObserver = observer;
}
return Figure._marginObserver;
}
}, {
key: "didObserveMarginIntersection",
value: function didObserveMarginIntersection(entries) {
var _iterator19 = _createForOfIteratorHelper(entries),
_step19;
try {
for (_iterator19.s(); !(_step19 = _iterator19.n()).done;) {
var entry = _step19.value;
var figure = entry.target;
if (entry.isIntersecting && !figure._ready) {
Figure.addToReadyQueue(figure);
}
}
} catch (err) {
_iterator19.e(err);
} finally {
_iterator19.f();
}
}
}, {
key: "directObserver",
get: function get() {
if (!Figure._directObserver) {
Figure._directObserver = new IntersectionObserver(Figure.didObserveDirectIntersection, {
rootMargin: '0px',
threshold: [0, 1.0]
});
}
return Figure._directObserver;
}
}, {
key: "didObserveDirectIntersection",
value: function didObserveDirectIntersection(entries) {
var _iterator20 = _createForOfIteratorHelper(entries),
_step20;
try {
for (_iterator20.s(); !(_step20 = _iterator20.n()).done;) {
var entry = _step20.value;
var figure = entry.target;
if (entry.isIntersecting) {
figure._seenOnScreen = new Date();
// if (!figure._ready) { figure.ready(); }
if (figure._offscreen) {
figure.onscreen();
}
} else {
if (figure._onscreen) {
figure.offscreen();
}
}
}
} catch (err) {
_iterator20.e(err);
} finally {
_iterator20.f();
}
}
}]);
}(/*#__PURE__*/_wrapNativeSuper(HTMLElement));
if (typeof window !== 'undefined') {
Figure.isScrolling = false;
var timeout;
var resetTimer = function resetTimer() {
Figure.isScrolling = true;
clearTimeout(timeout);
timeout = setTimeout(function () {
Figure.isScrolling = false;
Figure.runReadyQueue();
}, 500);
};
window.addEventListener('scroll', resetTimer, true);
}
// Copyright 2018 The Distill Template Authors
// This overlay is not secure.
// It is only meant as a social deterrent.
var productionHostname = 'distill.pub';
var T$9 = Template('d-interstitial', "\n\n\n
\n
\n
This article is in review.
\n
Do not share this URL or the contents of this article. Thank you!
\n \n
Enter the password we shared with you as part of the review process to view the article.
\n
\n
\n");
var Interstitial = /*#__PURE__*/function (_T$8) {
function Interstitial() {
_classCallCheck(this, Interstitial);
return _callSuper(this, Interstitial, arguments);
}
_inherits(Interstitial, _T$8);
return _createClass(Interstitial, [{
key: "connectedCallback",
value: function connectedCallback() {
var _this18 = this;
if (this.shouldRemoveSelf()) {
this.parentElement.removeChild(this);
} else {
var passwordInput = this.root.querySelector('#interstitial-password-input');
passwordInput.oninput = function (event) {
return _this18.passwordChanged(event);
};
}
}
}, {
key: "passwordChanged",
value: function passwordChanged(event) {
var entered = event.target.value;
if (entered === this.password) {
console.log('Correct password entered.');
this.parentElement.removeChild(this);
if (typeof Storage !== 'undefined') {
console.log('Saved that correct password was entered.');
localStorage.setItem(this.localStorageIdentifier(), 'true');
}
}
}
}, {
key: "shouldRemoveSelf",
value: function shouldRemoveSelf() {
// should never be visible in production
if (window && window.location.hostname === productionHostname) {
console.warn('Interstitial found on production, hiding it.');
return true;
}
// should only have to enter password once
if (typeof Storage !== 'undefined') {
if (localStorage.getItem(this.localStorageIdentifier()) === 'true') {
console.log('Loaded that correct password was entered before; skipping interstitial.');
return true;
}
}
// otherwise, leave visible
return false;
}
}, {
key: "localStorageIdentifier",
value: function localStorageIdentifier() {
var prefix = 'distill-drafts';
var suffix = 'interstitial-password-correct';
return prefix + (window ? window.location.pathname : '-') + suffix;
}
}]);
}(T$9(HTMLElement));
function ascending(a, b) {
return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
function bisector(compare) {
if (compare.length === 1) compare = ascendingComparator(compare);
return {
left: function left(a, x, lo, hi) {
if (lo == null) lo = 0;
if (hi == null) hi = a.length;
while (lo < hi) {
var mid = lo + hi >>> 1;
if (compare(a[mid], x) < 0) lo = mid + 1;else hi = mid;
}
return lo;
},
right: function right(a, x, lo, hi) {
if (lo == null) lo = 0;
if (hi == null) hi = a.length;
while (lo < hi) {
var mid = lo + hi >>> 1;
if (compare(a[mid], x) > 0) hi = mid;else lo = mid + 1;
}
return lo;
}
};
}
function ascendingComparator(f) {
return function (d, x) {
return ascending(f(d), x);
};
}
var ascendingBisect = bisector(ascending);
var bisectRight = ascendingBisect.right;
function range(start, stop, step) {
start = +start, stop = +stop, step = (n = arguments.length) < 2 ? (stop = start, start = 0, 1) : n < 3 ? 1 : +step;
var i = -1,
n = Math.max(0, Math.ceil((stop - start) / step)) | 0,
range = new Array(n);
while (++i < n) {
range[i] = start + i * step;
}
return range;
}
var e10 = Math.sqrt(50),
e5 = Math.sqrt(10),
e2 = Math.sqrt(2);
function ticks(start, stop, count) {
var reverse,
i = -1,
n,
ticks,
step;
stop = +stop, start = +start, count = +count;
if (start === stop && count > 0) return [start];
if (reverse = stop < start) n = start, start = stop, stop = n;
if ((step = tickIncrement(start, stop, count)) === 0 || !isFinite(step)) return [];
if (step > 0) {
start = Math.ceil(start / step);
stop = Math.floor(stop / step);
ticks = new Array(n = Math.ceil(stop - start + 1));
while (++i < n) ticks[i] = (start + i) * step;
} else {
start = Math.floor(start * step);
stop = Math.ceil(stop * step);
ticks = new Array(n = Math.ceil(start - stop + 1));
while (++i < n) ticks[i] = (start - i) / step;
}
if (reverse) ticks.reverse();
return ticks;
}
function tickIncrement(start, stop, count) {
var step = (stop - start) / Math.max(0, count),
power = Math.floor(Math.log(step) / Math.LN10),
error = step / Math.pow(10, power);
return power >= 0 ? (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1) * Math.pow(10, power) : -Math.pow(10, -power) / (error >= e10 ? 10 : error >= e5 ? 5 : error >= e2 ? 2 : 1);
}
function tickStep(start, stop, count) {
var step0 = Math.abs(stop - start) / Math.max(0, count),
step1 = Math.pow(10, Math.floor(Math.log(step0) / Math.LN10)),
error = step0 / step1;
if (error >= e10) step1 *= 10;else if (error >= e5) step1 *= 5;else if (error >= e2) step1 *= 2;
return stop < start ? -step1 : step1;
}
function initRange(domain, range) {
switch (arguments.length) {
case 0:
break;
case 1:
this.range(domain);
break;
default:
this.range(range).domain(domain);
break;
}
return this;
}
function define(constructor, factory, prototype) {
constructor.prototype = factory.prototype = prototype;
prototype.constructor = constructor;
}
function extend(parent, definition) {
var prototype = Object.create(parent.prototype);
for (var key in definition) prototype[key] = definition[key];
return prototype;
}
function Color() {}
var _darker = 0.7;
var _brighter = 1 / _darker;
var reI = "\\s*([+-]?\\d+)\\s*",
reN = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)\\s*",
reP = "\\s*([+-]?\\d*\\.?\\d+(?:[eE][+-]?\\d+)?)%\\s*",
reHex = /^#([0-9a-f]{3,8})$/,
reRgbInteger = new RegExp("^rgb\\(" + [reI, reI, reI] + "\\)$"),
reRgbPercent = new RegExp("^rgb\\(" + [reP, reP, reP] + "\\)$"),
reRgbaInteger = new RegExp("^rgba\\(" + [reI, reI, reI, reN] + "\\)$"),
reRgbaPercent = new RegExp("^rgba\\(" + [reP, reP, reP, reN] + "\\)$"),
reHslPercent = new RegExp("^hsl\\(" + [reN, reP, reP] + "\\)$"),
reHslaPercent = new RegExp("^hsla\\(" + [reN, reP, reP, reN] + "\\)$");
var named = {
aliceblue: 0xf0f8ff,
antiquewhite: 0xfaebd7,
aqua: 0x00ffff,
aquamarine: 0x7fffd4,
azure: 0xf0ffff,
beige: 0xf5f5dc,
bisque: 0xffe4c4,
black: 0x000000,
blanchedalmond: 0xffebcd,
blue: 0x0000ff,
blueviolet: 0x8a2be2,
brown: 0xa52a2a,
burlywood: 0xdeb887,
cadetblue: 0x5f9ea0,
chartreuse: 0x7fff00,
chocolate: 0xd2691e,
coral: 0xff7f50,
cornflowerblue: 0x6495ed,
cornsilk: 0xfff8dc,
crimson: 0xdc143c,
cyan: 0x00ffff,
darkblue: 0x00008b,
darkcyan: 0x008b8b,
darkgoldenrod: 0xb8860b,
darkgray: 0xa9a9a9,
darkgreen: 0x006400,
darkgrey: 0xa9a9a9,
darkkhaki: 0xbdb76b,
darkmagenta: 0x8b008b,
darkolivegreen: 0x556b2f,
darkorange: 0xff8c00,
darkorchid: 0x9932cc,
darkred: 0x8b0000,
darksalmon: 0xe9967a,
darkseagreen: 0x8fbc8f,
darkslateblue: 0x483d8b,
darkslategray: 0x2f4f4f,
darkslategrey: 0x2f4f4f,
darkturquoise: 0x00ced1,
darkviolet: 0x9400d3,
deeppink: 0xff1493,
deepskyblue: 0x00bfff,
dimgray: 0x696969,
dimgrey: 0x696969,
dodgerblue: 0x1e90ff,
firebrick: 0xb22222,
floralwhite: 0xfffaf0,
forestgreen: 0x228b22,
fuchsia: 0xff00ff,
gainsboro: 0xdcdcdc,
ghostwhite: 0xf8f8ff,
gold: 0xffd700,
goldenrod: 0xdaa520,
gray: 0x808080,
green: 0x008000,
greenyellow: 0xadff2f,
grey: 0x808080,
honeydew: 0xf0fff0,
hotpink: 0xff69b4,
indianred: 0xcd5c5c,
indigo: 0x4b0082,
ivory: 0xfffff0,
khaki: 0xf0e68c,
lavender: 0xe6e6fa,
lavenderblush: 0xfff0f5,
lawngreen: 0x7cfc00,
lemonchiffon: 0xfffacd,
lightblue: 0xadd8e6,
lightcoral: 0xf08080,
lightcyan: 0xe0ffff,
lightgoldenrodyellow: 0xfafad2,
lightgray: 0xd3d3d3,
lightgreen: 0x90ee90,
lightgrey: 0xd3d3d3,
lightpink: 0xffb6c1,
lightsalmon: 0xffa07a,
lightseagreen: 0x20b2aa,
lightskyblue: 0x87cefa,
lightslategray: 0x778899,
lightslategrey: 0x778899,
lightsteelblue: 0xb0c4de,
lightyellow: 0xffffe0,
lime: 0x00ff00,
limegreen: 0x32cd32,
linen: 0xfaf0e6,
magenta: 0xff00ff,
maroon: 0x800000,
mediumaquamarine: 0x66cdaa,
mediumblue: 0x0000cd,
mediumorchid: 0xba55d3,
mediumpurple: 0x9370db,
mediumseagreen: 0x3cb371,
mediumslateblue: 0x7b68ee,
mediumspringgreen: 0x00fa9a,
mediumturquoise: 0x48d1cc,
mediumvioletred: 0xc71585,
midnightblue: 0x191970,
mintcream: 0xf5fffa,
mistyrose: 0xffe4e1,
moccasin: 0xffe4b5,
navajowhite: 0xffdead,
navy: 0x000080,
oldlace: 0xfdf5e6,
olive: 0x808000,
olivedrab: 0x6b8e23,
orange: 0xffa500,
orangered: 0xff4500,
orchid: 0xda70d6,
palegoldenrod: 0xeee8aa,
palegreen: 0x98fb98,
paleturquoise: 0xafeeee,
palevioletred: 0xdb7093,
papayawhip: 0xffefd5,
peachpuff: 0xffdab9,
peru: 0xcd853f,
pink: 0xffc0cb,
plum: 0xdda0dd,
powderblue: 0xb0e0e6,
purple: 0x800080,
rebeccapurple: 0x663399,
red: 0xff0000,
rosybrown: 0xbc8f8f,
royalblue: 0x4169e1,
saddlebrown: 0x8b4513,
salmon: 0xfa8072,
sandybrown: 0xf4a460,
seagreen: 0x2e8b57,
seashell: 0xfff5ee,
sienna: 0xa0522d,
silver: 0xc0c0c0,
skyblue: 0x87ceeb,
slateblue: 0x6a5acd,
slategray: 0x708090,
slategrey: 0x708090,
snow: 0xfffafa,
springgreen: 0x00ff7f,
steelblue: 0x4682b4,
tan: 0xd2b48c,
teal: 0x008080,
thistle: 0xd8bfd8,
tomato: 0xff6347,
turquoise: 0x40e0d0,
violet: 0xee82ee,
wheat: 0xf5deb3,
white: 0xffffff,
whitesmoke: 0xf5f5f5,
yellow: 0xffff00,
yellowgreen: 0x9acd32
};
define(Color, color, {
copy: function copy(channels) {
return Object.assign(new this.constructor(), this, channels);
},
displayable: function displayable() {
return this.rgb().displayable();
},
hex: color_formatHex,
// Deprecated! Use color.formatHex.
formatHex: color_formatHex,
formatHsl: color_formatHsl,
formatRgb: color_formatRgb,
toString: color_formatRgb
});
function color_formatHex() {
return this.rgb().formatHex();
}
function color_formatHsl() {
return hslConvert(this).formatHsl();
}
function color_formatRgb() {
return this.rgb().formatRgb();
}
function color(format) {
var m, l;
format = (format + "").trim().toLowerCase();
return (m = reHex.exec(format)) ? (l = m[1].length, m = parseInt(m[1], 16), l === 6 ? rgbn(m) // #ff0000
: l === 3 ? new Rgb(m >> 8 & 0xf | m >> 4 & 0xf0, m >> 4 & 0xf | m & 0xf0, (m & 0xf) << 4 | m & 0xf, 1) // #f00
: l === 8 ? rgba(m >> 24 & 0xff, m >> 16 & 0xff, m >> 8 & 0xff, (m & 0xff) / 0xff) // #ff000000
: l === 4 ? rgba(m >> 12 & 0xf | m >> 8 & 0xf0, m >> 8 & 0xf | m >> 4 & 0xf0, m >> 4 & 0xf | m & 0xf0, ((m & 0xf) << 4 | m & 0xf) / 0xff) // #f000
: null // invalid hex
) : (m = reRgbInteger.exec(format)) ? new Rgb(m[1], m[2], m[3], 1) // rgb(255, 0, 0)
: (m = reRgbPercent.exec(format)) ? new Rgb(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, 1) // rgb(100%, 0%, 0%)
: (m = reRgbaInteger.exec(format)) ? rgba(m[1], m[2], m[3], m[4]) // rgba(255, 0, 0, 1)
: (m = reRgbaPercent.exec(format)) ? rgba(m[1] * 255 / 100, m[2] * 255 / 100, m[3] * 255 / 100, m[4]) // rgb(100%, 0%, 0%, 1)
: (m = reHslPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, 1) // hsl(120, 50%, 50%)
: (m = reHslaPercent.exec(format)) ? hsla(m[1], m[2] / 100, m[3] / 100, m[4]) // hsla(120, 50%, 50%, 1)
: named.hasOwnProperty(format) ? rgbn(named[format]) // eslint-disable-line no-prototype-builtins
: format === "transparent" ? new Rgb(NaN, NaN, NaN, 0) : null;
}
function rgbn(n) {
return new Rgb(n >> 16 & 0xff, n >> 8 & 0xff, n & 0xff, 1);
}
function rgba(r, g, b, a) {
if (a <= 0) r = g = b = NaN;
return new Rgb(r, g, b, a);
}
function rgbConvert(o) {
if (!(o instanceof Color)) o = color(o);
if (!o) return new Rgb();
o = o.rgb();
return new Rgb(o.r, o.g, o.b, o.opacity);
}
function rgb(r, g, b, opacity) {
return arguments.length === 1 ? rgbConvert(r) : new Rgb(r, g, b, opacity == null ? 1 : opacity);
}
function Rgb(r, g, b, opacity) {
this.r = +r;
this.g = +g;
this.b = +b;
this.opacity = +opacity;
}
define(Rgb, rgb, extend(Color, {
brighter: function brighter(k) {
k = k == null ? _brighter : Math.pow(_brighter, k);
return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
},
darker: function darker(k) {
k = k == null ? _darker : Math.pow(_darker, k);
return new Rgb(this.r * k, this.g * k, this.b * k, this.opacity);
},
rgb: function rgb() {
return this;
},
displayable: function displayable() {
return -0.5 <= this.r && this.r < 255.5 && -0.5 <= this.g && this.g < 255.5 && -0.5 <= this.b && this.b < 255.5 && 0 <= this.opacity && this.opacity <= 1;
},
hex: rgb_formatHex,
// Deprecated! Use color.formatHex.
formatHex: rgb_formatHex,
formatRgb: rgb_formatRgb,
toString: rgb_formatRgb
}));
function rgb_formatHex() {
return "#" + hex(this.r) + hex(this.g) + hex(this.b);
}
function rgb_formatRgb() {
var a = this.opacity;
a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
return (a === 1 ? "rgb(" : "rgba(") + Math.max(0, Math.min(255, Math.round(this.r) || 0)) + ", " + Math.max(0, Math.min(255, Math.round(this.g) || 0)) + ", " + Math.max(0, Math.min(255, Math.round(this.b) || 0)) + (a === 1 ? ")" : ", " + a + ")");
}
function hex(value) {
value = Math.max(0, Math.min(255, Math.round(value) || 0));
return (value < 16 ? "0" : "") + value.toString(16);
}
function hsla(h, s, l, a) {
if (a <= 0) h = s = l = NaN;else if (l <= 0 || l >= 1) h = s = NaN;else if (s <= 0) h = NaN;
return new Hsl(h, s, l, a);
}
function hslConvert(o) {
if (o instanceof Hsl) return new Hsl(o.h, o.s, o.l, o.opacity);
if (!(o instanceof Color)) o = color(o);
if (!o) return new Hsl();
if (o instanceof Hsl) return o;
o = o.rgb();
var r = o.r / 255,
g = o.g / 255,
b = o.b / 255,
min = Math.min(r, g, b),
max = Math.max(r, g, b),
h = NaN,
s = max - min,
l = (max + min) / 2;
if (s) {
if (r === max) h = (g - b) / s + (g < b) * 6;else if (g === max) h = (b - r) / s + 2;else h = (r - g) / s + 4;
s /= l < 0.5 ? max + min : 2 - max - min;
h *= 60;
} else {
s = l > 0 && l < 1 ? 0 : h;
}
return new Hsl(h, s, l, o.opacity);
}
function hsl(h, s, l, opacity) {
return arguments.length === 1 ? hslConvert(h) : new Hsl(h, s, l, opacity == null ? 1 : opacity);
}
function Hsl(h, s, l, opacity) {
this.h = +h;
this.s = +s;
this.l = +l;
this.opacity = +opacity;
}
define(Hsl, hsl, extend(Color, {
brighter: function brighter(k) {
k = k == null ? _brighter : Math.pow(_brighter, k);
return new Hsl(this.h, this.s, this.l * k, this.opacity);
},
darker: function darker(k) {
k = k == null ? _darker : Math.pow(_darker, k);
return new Hsl(this.h, this.s, this.l * k, this.opacity);
},
rgb: function rgb() {
var h = this.h % 360 + (this.h < 0) * 360,
s = isNaN(h) || isNaN(this.s) ? 0 : this.s,
l = this.l,
m2 = l + (l < 0.5 ? l : 1 - l) * s,
m1 = 2 * l - m2;
return new Rgb(hsl2rgb(h >= 240 ? h - 240 : h + 120, m1, m2), hsl2rgb(h, m1, m2), hsl2rgb(h < 120 ? h + 240 : h - 120, m1, m2), this.opacity);
},
displayable: function displayable() {
return (0 <= this.s && this.s <= 1 || isNaN(this.s)) && 0 <= this.l && this.l <= 1 && 0 <= this.opacity && this.opacity <= 1;
},
formatHsl: function formatHsl() {
var a = this.opacity;
a = isNaN(a) ? 1 : Math.max(0, Math.min(1, a));
return (a === 1 ? "hsl(" : "hsla(") + (this.h || 0) + ", " + (this.s || 0) * 100 + "%, " + (this.l || 0) * 100 + "%" + (a === 1 ? ")" : ", " + a + ")");
}
}));
/* From FvD 13.37, CSS Color Module Level 3 */
function hsl2rgb(h, m1, m2) {
return (h < 60 ? m1 + (m2 - m1) * h / 60 : h < 180 ? m2 : h < 240 ? m1 + (m2 - m1) * (240 - h) / 60 : m1) * 255;
}
var deg2rad = Math.PI / 180;
var rad2deg = 180 / Math.PI;
// https://observablehq.com/@mbostock/lab-and-rgb
var K = 18,
Xn = 0.96422,
Yn = 1,
Zn = 0.82521,
t0 = 4 / 29,
t1 = 6 / 29,
t2 = 3 * t1 * t1,
t3 = t1 * t1 * t1;
function labConvert(o) {
if (o instanceof Lab) return new Lab(o.l, o.a, o.b, o.opacity);
if (o instanceof Hcl) return hcl2lab(o);
if (!(o instanceof Rgb)) o = rgbConvert(o);
var r = rgb2lrgb(o.r),
g = rgb2lrgb(o.g),
b = rgb2lrgb(o.b),
y = xyz2lab((0.2225045 * r + 0.7168786 * g + 0.0606169 * b) / Yn),
x,
z;
if (r === g && g === b) x = z = y;else {
x = xyz2lab((0.4360747 * r + 0.3850649 * g + 0.1430804 * b) / Xn);
z = xyz2lab((0.0139322 * r + 0.0971045 * g + 0.7141733 * b) / Zn);
}
return new Lab(116 * y - 16, 500 * (x - y), 200 * (y - z), o.opacity);
}
function lab(l, a, b, opacity) {
return arguments.length === 1 ? labConvert(l) : new Lab(l, a, b, opacity == null ? 1 : opacity);
}
function Lab(l, a, b, opacity) {
this.l = +l;
this.a = +a;
this.b = +b;
this.opacity = +opacity;
}
define(Lab, lab, extend(Color, {
brighter: function brighter(k) {
return new Lab(this.l + K * (k == null ? 1 : k), this.a, this.b, this.opacity);
},
darker: function darker(k) {
return new Lab(this.l - K * (k == null ? 1 : k), this.a, this.b, this.opacity);
},
rgb: function rgb() {
var y = (this.l + 16) / 116,
x = isNaN(this.a) ? y : y + this.a / 500,
z = isNaN(this.b) ? y : y - this.b / 200;
x = Xn * lab2xyz(x);
y = Yn * lab2xyz(y);
z = Zn * lab2xyz(z);
return new Rgb(lrgb2rgb(3.1338561 * x - 1.6168667 * y - 0.4906146 * z), lrgb2rgb(-0.9787684 * x + 1.9161415 * y + 0.0334540 * z), lrgb2rgb(0.0719453 * x - 0.2289914 * y + 1.4052427 * z), this.opacity);
}
}));
function xyz2lab(t) {
return t > t3 ? Math.pow(t, 1 / 3) : t / t2 + t0;
}
function lab2xyz(t) {
return t > t1 ? t * t * t : t2 * (t - t0);
}
function lrgb2rgb(x) {
return 255 * (x <= 0.0031308 ? 12.92 * x : 1.055 * Math.pow(x, 1 / 2.4) - 0.055);
}
function rgb2lrgb(x) {
return (x /= 255) <= 0.04045 ? x / 12.92 : Math.pow((x + 0.055) / 1.055, 2.4);
}
function hclConvert(o) {
if (o instanceof Hcl) return new Hcl(o.h, o.c, o.l, o.opacity);
if (!(o instanceof Lab)) o = labConvert(o);
if (o.a === 0 && o.b === 0) return new Hcl(NaN, 0 < o.l && o.l < 100 ? 0 : NaN, o.l, o.opacity);
var h = Math.atan2(o.b, o.a) * rad2deg;
return new Hcl(h < 0 ? h + 360 : h, Math.sqrt(o.a * o.a + o.b * o.b), o.l, o.opacity);
}
function hcl(h, c, l, opacity) {
return arguments.length === 1 ? hclConvert(h) : new Hcl(h, c, l, opacity == null ? 1 : opacity);
}
function Hcl(h, c, l, opacity) {
this.h = +h;
this.c = +c;
this.l = +l;
this.opacity = +opacity;
}
function hcl2lab(o) {
if (isNaN(o.h)) return new Lab(o.l, 0, 0, o.opacity);
var h = o.h * deg2rad;
return new Lab(o.l, Math.cos(h) * o.c, Math.sin(h) * o.c, o.opacity);
}
define(Hcl, hcl, extend(Color, {
brighter: function brighter(k) {
return new Hcl(this.h, this.c, this.l + K * (k == null ? 1 : k), this.opacity);
},
darker: function darker(k) {
return new Hcl(this.h, this.c, this.l - K * (k == null ? 1 : k), this.opacity);
},
rgb: function rgb() {
return hcl2lab(this).rgb();
}
}));
var A = -0.14861,
B = +1.78277,
C = -0.29227,
D = -0.90649,
E = +1.97294,
ED = E * D,
EB = E * B,
BC_DA = B * C - D * A;
function cubehelixConvert(o) {
if (o instanceof Cubehelix) return new Cubehelix(o.h, o.s, o.l, o.opacity);
if (!(o instanceof Rgb)) o = rgbConvert(o);
var r = o.r / 255,
g = o.g / 255,
b = o.b / 255,
l = (BC_DA * b + ED * r - EB * g) / (BC_DA + ED - EB),
bl = b - l,
k = (E * (g - l) - C * bl) / D,
s = Math.sqrt(k * k + bl * bl) / (E * l * (1 - l)),
// NaN if l=0 or l=1
h = s ? Math.atan2(k, bl) * rad2deg - 120 : NaN;
return new Cubehelix(h < 0 ? h + 360 : h, s, l, o.opacity);
}
function cubehelix(h, s, l, opacity) {
return arguments.length === 1 ? cubehelixConvert(h) : new Cubehelix(h, s, l, opacity == null ? 1 : opacity);
}
function Cubehelix(h, s, l, opacity) {
this.h = +h;
this.s = +s;
this.l = +l;
this.opacity = +opacity;
}
define(Cubehelix, cubehelix, extend(Color, {
brighter: function brighter(k) {
k = k == null ? _brighter : Math.pow(_brighter, k);
return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
},
darker: function darker(k) {
k = k == null ? _darker : Math.pow(_darker, k);
return new Cubehelix(this.h, this.s, this.l * k, this.opacity);
},
rgb: function rgb() {
var h = isNaN(this.h) ? 0 : (this.h + 120) * deg2rad,
l = +this.l,
a = isNaN(this.s) ? 0 : this.s * l * (1 - l),
cosh = Math.cos(h),
sinh = Math.sin(h);
return new Rgb(255 * (l + a * (A * cosh + B * sinh)), 255 * (l + a * (C * cosh + D * sinh)), 255 * (l + a * (E * cosh)), this.opacity);
}
}));
function constant(x) {
return function () {
return x;
};
}
function linear(a, d) {
return function (t) {
return a + t * d;
};
}
function exponential(a, b, y) {
return a = Math.pow(a, y), b = Math.pow(b, y) - a, y = 1 / y, function (t) {
return Math.pow(a + t * b, y);
};
}
function gamma(y) {
return (y = +y) === 1 ? nogamma : function (a, b) {
return b - a ? exponential(a, b, y) : constant(isNaN(a) ? b : a);
};
}
function nogamma(a, b) {
var d = b - a;
return d ? linear(a, d) : constant(isNaN(a) ? b : a);
}
var rgb$1 = function rgbGamma(y) {
var color = gamma(y);
function rgb$1(start, end) {
var r = color((start = rgb(start)).r, (end = rgb(end)).r),
g = color(start.g, end.g),
b = color(start.b, end.b),
opacity = nogamma(start.opacity, end.opacity);
return function (t) {
start.r = r(t);
start.g = g(t);
start.b = b(t);
start.opacity = opacity(t);
return start + "";
};
}
rgb$1.gamma = rgbGamma;
return rgb$1;
}(1);
function numberArray(a, b) {
if (!b) b = [];
var n = a ? Math.min(b.length, a.length) : 0,
c = b.slice(),
i;
return function (t) {
for (i = 0; i < n; ++i) c[i] = a[i] * (1 - t) + b[i] * t;
return c;
};
}
function isNumberArray(x) {
return ArrayBuffer.isView(x) && !(x instanceof DataView);
}
function genericArray(a, b) {
var nb = b ? b.length : 0,
na = a ? Math.min(nb, a.length) : 0,
x = new Array(na),
c = new Array(nb),
i;
for (i = 0; i < na; ++i) x[i] = interpolate(a[i], b[i]);
for (; i < nb; ++i) c[i] = b[i];
return function (t) {
for (i = 0; i < na; ++i) c[i] = x[i](t);
return c;
};
}
function date(a, b) {
var d = new Date();
return a = +a, b = +b, function (t) {
return d.setTime(a * (1 - t) + b * t), d;
};
}
function interpolateNumber(a, b) {
return a = +a, b = +b, function (t) {
return a * (1 - t) + b * t;
};
}
function object(a, b) {
var i = {},
c = {},
k;
if (a === null || _typeof(a) !== "object") a = {};
if (b === null || _typeof(b) !== "object") b = {};
for (k in b) {
if (k in a) {
i[k] = interpolate(a[k], b[k]);
} else {
c[k] = b[k];
}
}
return function (t) {
for (k in i) c[k] = i[k](t);
return c;
};
}
var reA = /[-+]?(?:\d+\.?\d*|\.?\d+)(?:[eE][-+]?\d+)?/g,
reB = new RegExp(reA.source, "g");
function zero(b) {
return function () {
return b;
};
}
function one(b) {
return function (t) {
return b(t) + "";
};
}
function string(a, b) {
var bi = reA.lastIndex = reB.lastIndex = 0,
// scan index for next number in b
am,
// current match in a
bm,
// current match in b
bs,
// string preceding current number in b, if any
i = -1,
// index in s
s = [],
// string constants and placeholders
q = []; // number interpolators
// Coerce inputs to strings.
a = a + "", b = b + "";
// Interpolate pairs of numbers in a & b.
while ((am = reA.exec(a)) && (bm = reB.exec(b))) {
if ((bs = bm.index) > bi) {
// a string precedes the next number in b
bs = b.slice(bi, bs);
if (s[i]) s[i] += bs; // coalesce with previous string
else s[++i] = bs;
}
if ((am = am[0]) === (bm = bm[0])) {
// numbers in a & b match
if (s[i]) s[i] += bm; // coalesce with previous string
else s[++i] = bm;
} else {
// interpolate non-matching numbers
s[++i] = null;
q.push({
i: i,
x: interpolateNumber(am, bm)
});
}
bi = reB.lastIndex;
}
// Add remains of b.
if (bi < b.length) {
bs = b.slice(bi);
if (s[i]) s[i] += bs; // coalesce with previous string
else s[++i] = bs;
}
// Special optimization for only a single match.
// Otherwise, interpolate each of the numbers and rejoin the string.
return s.length < 2 ? q[0] ? one(q[0].x) : zero(b) : (b = q.length, function (t) {
for (var i = 0, o; i < b; ++i) s[(o = q[i]).i] = o.x(t);
return s.join("");
});
}
function interpolate(a, b) {
var t = _typeof(b),
c;
return b == null || t === "boolean" ? constant(b) : (t === "number" ? interpolateNumber : t === "string" ? (c = color(b)) ? (b = c, rgb$1) : string : b instanceof color ? rgb$1 : b instanceof Date ? date : isNumberArray(b) ? numberArray : Array.isArray(b) ? genericArray : typeof b.valueOf !== "function" && typeof b.toString !== "function" || isNaN(b) ? object : interpolateNumber)(a, b);
}
function interpolateRound(a, b) {
return a = +a, b = +b, function (t) {
return Math.round(a * (1 - t) + b * t);
};
}
function constant$1(x) {
return function () {
return x;
};
}
function number(x) {
return +x;
}
var unit = [0, 1];
function identity(x) {
return x;
}
function normalize(a, b) {
return (b -= a = +a) ? function (x) {
return (x - a) / b;
} : constant$1(isNaN(b) ? NaN : 0.5);
}
function clamper(a, b) {
var t;
if (a > b) t = a, a = b, b = t;
return function (x) {
return Math.max(a, Math.min(b, x));
};
}
// normalize(a, b)(x) takes a domain value x in [a,b] and returns the corresponding parameter t in [0,1].
// interpolate(a, b)(t) takes a parameter t in [0,1] and returns the corresponding range value x in [a,b].
function bimap(domain, range, interpolate) {
var d0 = domain[0],
d1 = domain[1],
r0 = range[0],
r1 = range[1];
if (d1 < d0) d0 = normalize(d1, d0), r0 = interpolate(r1, r0);else d0 = normalize(d0, d1), r0 = interpolate(r0, r1);
return function (x) {
return r0(d0(x));
};
}
function polymap(domain, range, interpolate) {
var j = Math.min(domain.length, range.length) - 1,
d = new Array(j),
r = new Array(j),
i = -1;
// Reverse descending domains.
if (domain[j] < domain[0]) {
domain = domain.slice().reverse();
range = range.slice().reverse();
}
while (++i < j) {
d[i] = normalize(domain[i], domain[i + 1]);
r[i] = interpolate(range[i], range[i + 1]);
}
return function (x) {
var i = bisectRight(domain, x, 1, j) - 1;
return r[i](d[i](x));
};
}
function copy(source, target) {
return target.domain(source.domain()).range(source.range()).interpolate(source.interpolate()).clamp(source.clamp()).unknown(source.unknown());
}
function transformer() {
var domain = unit,
range = unit,
interpolate$1 = interpolate,
transform,
untransform,
unknown,
clamp = identity,
piecewise,
output,
input;
function rescale() {
var n = Math.min(domain.length, range.length);
if (clamp !== identity) clamp = clamper(domain[0], domain[n - 1]);
piecewise = n > 2 ? polymap : bimap;
output = input = null;
return scale;
}
function scale(x) {
return isNaN(x = +x) ? unknown : (output || (output = piecewise(domain.map(transform), range, interpolate$1)))(transform(clamp(x)));
}
scale.invert = function (y) {
return clamp(untransform((input || (input = piecewise(range, domain.map(transform), interpolateNumber)))(y)));
};
scale.domain = function (_) {
return arguments.length ? (domain = Array.from(_, number), rescale()) : domain.slice();
};
scale.range = function (_) {
return arguments.length ? (range = Array.from(_), rescale()) : range.slice();
};
scale.rangeRound = function (_) {
return range = Array.from(_), interpolate$1 = interpolateRound, rescale();
};
scale.clamp = function (_) {
return arguments.length ? (clamp = _ ? true : identity, rescale()) : clamp !== identity;
};
scale.interpolate = function (_) {
return arguments.length ? (interpolate$1 = _, rescale()) : interpolate$1;
};
scale.unknown = function (_) {
return arguments.length ? (unknown = _, scale) : unknown;
};
return function (t, u) {
transform = t, untransform = u;
return rescale();
};
}
function continuous() {
return transformer()(identity, identity);
}
// Computes the decimal coefficient and exponent of the specified number x with
// significant digits p, where x is positive and p is in [1, 21] or undefined.
// For example, formatDecimal(1.23) returns ["123", 0].
function formatDecimal(x, p) {
if ((i = (x = p ? x.toExponential(p - 1) : x.toExponential()).indexOf("e")) < 0) return null; // NaN, ±Infinity
var i,
coefficient = x.slice(0, i);
// The string returned by toExponential either has the form \d\.\d+e[-+]\d+
// (e.g., 1.2e+3) or the form \de[-+]\d+ (e.g., 1e+3).
return [coefficient.length > 1 ? coefficient[0] + coefficient.slice(2) : coefficient, +x.slice(i + 1)];
}
function exponent(x) {
return x = formatDecimal(Math.abs(x)), x ? x[1] : NaN;
}
function formatGroup(grouping, thousands) {
return function (value, width) {
var i = value.length,
t = [],
j = 0,
g = grouping[0],
length = 0;
while (i > 0 && g > 0) {
if (length + g + 1 > width) g = Math.max(1, width - length);
t.push(value.substring(i -= g, i + g));
if ((length += g + 1) > width) break;
g = grouping[j = (j + 1) % grouping.length];
}
return t.reverse().join(thousands);
};
}
function formatNumerals(numerals) {
return function (value) {
return value.replace(/[0-9]/g, function (i) {
return numerals[+i];
});
};
}
// [[fill]align][sign][symbol][0][width][,][.precision][~][type]
var re = /^(?:(.)?([<>=^]))?([+\-( ])?([$#])?(0)?(\d+)?(,)?(\.\d+)?(~)?([a-z%])?$/i;
function formatSpecifier(specifier) {
if (!(match = re.exec(specifier))) throw new Error("invalid format: " + specifier);
var match;
return new FormatSpecifier({
fill: match[1],
align: match[2],
sign: match[3],
symbol: match[4],
zero: match[5],
width: match[6],
comma: match[7],
precision: match[8] && match[8].slice(1),
trim: match[9],
type: match[10]
});
}
formatSpecifier.prototype = FormatSpecifier.prototype; // instanceof
function FormatSpecifier(specifier) {
this.fill = specifier.fill === undefined ? " " : specifier.fill + "";
this.align = specifier.align === undefined ? ">" : specifier.align + "";
this.sign = specifier.sign === undefined ? "-" : specifier.sign + "";
this.symbol = specifier.symbol === undefined ? "" : specifier.symbol + "";
this.zero = !!specifier.zero;
this.width = specifier.width === undefined ? undefined : +specifier.width;
this.comma = !!specifier.comma;
this.precision = specifier.precision === undefined ? undefined : +specifier.precision;
this.trim = !!specifier.trim;
this.type = specifier.type === undefined ? "" : specifier.type + "";
}
FormatSpecifier.prototype.toString = function () {
return this.fill + this.align + this.sign + this.symbol + (this.zero ? "0" : "") + (this.width === undefined ? "" : Math.max(1, this.width | 0)) + (this.comma ? "," : "") + (this.precision === undefined ? "" : "." + Math.max(0, this.precision | 0)) + (this.trim ? "~" : "") + this.type;
};
// Trims insignificant zeros, e.g., replaces 1.2000k with 1.2k.
function formatTrim(s) {
out: for (var n = s.length, i = 1, i0 = -1, i1; i < n; ++i) {
switch (s[i]) {
case ".":
i0 = i1 = i;
break;
case "0":
if (i0 === 0) i0 = i;
i1 = i;
break;
default:
if (!+s[i]) break out;
if (i0 > 0) i0 = 0;
break;
}
}
return i0 > 0 ? s.slice(0, i0) + s.slice(i1 + 1) : s;
}
var prefixExponent;
function formatPrefixAuto(x, p) {
var d = formatDecimal(x, p);
if (!d) return x + "";
var coefficient = d[0],
exponent = d[1],
i = exponent - (prefixExponent = Math.max(-8, Math.min(8, Math.floor(exponent / 3))) * 3) + 1,
n = coefficient.length;
return i === n ? coefficient : i > n ? coefficient + new Array(i - n + 1).join("0") : i > 0 ? coefficient.slice(0, i) + "." + coefficient.slice(i) : "0." + new Array(1 - i).join("0") + formatDecimal(x, Math.max(0, p + i - 1))[0]; // less than 1y!
}
function formatRounded(x, p) {
var d = formatDecimal(x, p);
if (!d) return x + "";
var coefficient = d[0],
exponent = d[1];
return exponent < 0 ? "0." + new Array(-exponent).join("0") + coefficient : coefficient.length > exponent + 1 ? coefficient.slice(0, exponent + 1) + "." + coefficient.slice(exponent + 1) : coefficient + new Array(exponent - coefficient.length + 2).join("0");
}
var formatTypes = {
"%": function _(x, p) {
return (x * 100).toFixed(p);
},
"b": function b(x) {
return Math.round(x).toString(2);
},
"c": function c(x) {
return x + "";
},
"d": function d(x) {
return Math.round(x).toString(10);
},
"e": function e(x, p) {
return x.toExponential(p);
},
"f": function f(x, p) {
return x.toFixed(p);
},
"g": function g(x, p) {
return x.toPrecision(p);
},
"o": function o(x) {
return Math.round(x).toString(8);
},
"p": function p(x, _p) {
return formatRounded(x * 100, _p);
},
"r": formatRounded,
"s": formatPrefixAuto,
"X": function X(x) {
return Math.round(x).toString(16).toUpperCase();
},
"x": function x(_x) {
return Math.round(_x).toString(16);
}
};
function identity$1(x) {
return x;
}
var map = Array.prototype.map,
prefixes = ["y", "z", "a", "f", "p", "n", "µ", "m", "", "k", "M", "G", "T", "P", "E", "Z", "Y"];
function formatLocale(locale) {
var group = locale.grouping === undefined || locale.thousands === undefined ? identity$1 : formatGroup(map.call(locale.grouping, Number), locale.thousands + ""),
currencyPrefix = locale.currency === undefined ? "" : locale.currency[0] + "",
currencySuffix = locale.currency === undefined ? "" : locale.currency[1] + "",
decimal = locale.decimal === undefined ? "." : locale.decimal + "",
numerals = locale.numerals === undefined ? identity$1 : formatNumerals(map.call(locale.numerals, String)),
percent = locale.percent === undefined ? "%" : locale.percent + "",
minus = locale.minus === undefined ? "-" : locale.minus + "",
nan = locale.nan === undefined ? "NaN" : locale.nan + "";
function newFormat(specifier) {
specifier = formatSpecifier(specifier);
var fill = specifier.fill,
align = specifier.align,
sign = specifier.sign,
symbol = specifier.symbol,
zero = specifier.zero,
width = specifier.width,
comma = specifier.comma,
precision = specifier.precision,
trim = specifier.trim,
type = specifier.type;
// The "n" type is an alias for ",g".
if (type === "n") comma = true, type = "g";
// The "" type, and any invalid type, is an alias for ".12~g".
else if (!formatTypes[type]) precision === undefined && (precision = 12), trim = true, type = "g";
// If zero fill is specified, padding goes after sign and before digits.
if (zero || fill === "0" && align === "=") zero = true, fill = "0", align = "=";
// Compute the prefix and suffix.
// For SI-prefix, the suffix is lazily computed.
var prefix = symbol === "$" ? currencyPrefix : symbol === "#" && /[boxX]/.test(type) ? "0" + type.toLowerCase() : "",
suffix = symbol === "$" ? currencySuffix : /[%p]/.test(type) ? percent : "";
// What format function should we use?
// Is this an integer type?
// Can this type generate exponential notation?
var formatType = formatTypes[type],
maybeSuffix = /[defgprs%]/.test(type);
// Set the default precision if not specified,
// or clamp the specified precision to the supported range.
// For significant precision, it must be in [1, 21].
// For fixed precision, it must be in [0, 20].
precision = precision === undefined ? 6 : /[gprs]/.test(type) ? Math.max(1, Math.min(21, precision)) : Math.max(0, Math.min(20, precision));
function format(value) {
var valuePrefix = prefix,
valueSuffix = suffix,
i,
n,
c;
if (type === "c") {
valueSuffix = formatType(value) + valueSuffix;
value = "";
} else {
value = +value;
// Determine the sign. -0 is not less than 0, but 1 / -0 is!
var valueNegative = value < 0 || 1 / value < 0;
// Perform the initial formatting.
value = isNaN(value) ? nan : formatType(Math.abs(value), precision);
// Trim insignificant zeros.
if (trim) value = formatTrim(value);
// If a negative value rounds to zero after formatting, and no explicit positive sign is requested, hide the sign.
if (valueNegative && +value === 0 && sign !== "+") valueNegative = false;
// Compute the prefix and suffix.
valuePrefix = (valueNegative ? sign === "(" ? sign : minus : sign === "-" || sign === "(" ? "" : sign) + valuePrefix;
valueSuffix = (type === "s" ? prefixes[8 + prefixExponent / 3] : "") + valueSuffix + (valueNegative && sign === "(" ? ")" : "");
// Break the formatted value into the integer “value” part that can be
// grouped, and fractional or exponential “suffix” part that is not.
if (maybeSuffix) {
i = -1, n = value.length;
while (++i < n) {
if (c = value.charCodeAt(i), 48 > c || c > 57) {
valueSuffix = (c === 46 ? decimal + value.slice(i + 1) : value.slice(i)) + valueSuffix;
value = value.slice(0, i);
break;
}
}
}
}
// If the fill character is not "0", grouping is applied before padding.
if (comma && !zero) value = group(value, Infinity);
// Compute the padding.
var length = valuePrefix.length + value.length + valueSuffix.length,
padding = length < width ? new Array(width - length + 1).join(fill) : "";
// If the fill character is "0", grouping is applied after padding.
if (comma && zero) value = group(padding + value, padding.length ? width - valueSuffix.length : Infinity), padding = "";
// Reconstruct the final output based on the desired alignment.
switch (align) {
case "<":
value = valuePrefix + value + valueSuffix + padding;
break;
case "=":
value = valuePrefix + padding + value + valueSuffix;
break;
case "^":
value = padding.slice(0, length = padding.length >> 1) + valuePrefix + value + valueSuffix + padding.slice(length);
break;
default:
value = padding + valuePrefix + value + valueSuffix;
break;
}
return numerals(value);
}
format.toString = function () {
return specifier + "";
};
return format;
}
function formatPrefix(specifier, value) {
var f = newFormat((specifier = formatSpecifier(specifier), specifier.type = "f", specifier)),
e = Math.max(-8, Math.min(8, Math.floor(exponent(value) / 3))) * 3,
k = Math.pow(10, -e),
prefix = prefixes[8 + e / 3];
return function (value) {
return f(k * value) + prefix;
};
}
return {
format: newFormat,
formatPrefix: formatPrefix
};
}
var locale;
var format;
var formatPrefix;
defaultLocale({
decimal: ".",
thousands: ",",
grouping: [3],
currency: ["$", ""],
minus: "-"
});
function defaultLocale(definition) {
locale = formatLocale(definition);
format = locale.format;
formatPrefix = locale.formatPrefix;
return locale;
}
function precisionFixed(step) {
return Math.max(0, -exponent(Math.abs(step)));
}
function precisionPrefix(step, value) {
return Math.max(0, Math.max(-8, Math.min(8, Math.floor(exponent(value) / 3))) * 3 - exponent(Math.abs(step)));
}
function precisionRound(step, max) {
step = Math.abs(step), max = Math.abs(max) - step;
return Math.max(0, exponent(max) - exponent(step)) + 1;
}
function tickFormat(start, stop, count, specifier) {
var step = tickStep(start, stop, count),
precision;
specifier = formatSpecifier(specifier == null ? ",f" : specifier);
switch (specifier.type) {
case "s":
{
var value = Math.max(Math.abs(start), Math.abs(stop));
if (specifier.precision == null && !isNaN(precision = precisionPrefix(step, value))) specifier.precision = precision;
return formatPrefix(specifier, value);
}
case "":
case "e":
case "g":
case "p":
case "r":
{
if (specifier.precision == null && !isNaN(precision = precisionRound(step, Math.max(Math.abs(start), Math.abs(stop))))) specifier.precision = precision - (specifier.type === "e");
break;
}
case "f":
case "%":
{
if (specifier.precision == null && !isNaN(precision = precisionFixed(step))) specifier.precision = precision - (specifier.type === "%") * 2;
break;
}
}
return format(specifier);
}
function linearish(scale) {
var domain = scale.domain;
scale.ticks = function (count) {
var d = domain();
return ticks(d[0], d[d.length - 1], count == null ? 10 : count);
};
scale.tickFormat = function (count, specifier) {
var d = domain();
return tickFormat(d[0], d[d.length - 1], count == null ? 10 : count, specifier);
};
scale.nice = function (count) {
if (count == null) count = 10;
var d = domain(),
i0 = 0,
i1 = d.length - 1,
start = d[i0],
stop = d[i1],
step;
if (stop < start) {
step = start, start = stop, stop = step;
step = i0, i0 = i1, i1 = step;
}
step = tickIncrement(start, stop, count);
if (step > 0) {
start = Math.floor(start / step) * step;
stop = Math.ceil(stop / step) * step;
step = tickIncrement(start, stop, count);
} else if (step < 0) {
start = Math.ceil(start * step) / step;
stop = Math.floor(stop * step) / step;
step = tickIncrement(start, stop, count);
}
if (step > 0) {
d[i0] = Math.floor(start / step) * step;
d[i1] = Math.ceil(stop / step) * step;
domain(d);
} else if (step < 0) {
d[i0] = Math.ceil(start * step) / step;
d[i1] = Math.floor(stop * step) / step;
domain(d);
}
return scale;
};
return scale;
}
function linear$1() {
var scale = continuous();
scale.copy = function () {
return copy(scale, linear$1());
};
initRange.apply(scale, arguments);
return linearish(scale);
}
var t0$1 = new Date(),
t1$1 = new Date();
function newInterval(floori, offseti, count, field) {
function interval(date) {
return floori(date = arguments.length === 0 ? new Date() : new Date(+date)), date;
}
interval.floor = function (date) {
return floori(date = new Date(+date)), date;
};
interval.ceil = function (date) {
return floori(date = new Date(date - 1)), offseti(date, 1), floori(date), date;
};
interval.round = function (date) {
var d0 = interval(date),
d1 = interval.ceil(date);
return date - d0 < d1 - date ? d0 : d1;
};
interval.offset = function (date, step) {
return offseti(date = new Date(+date), step == null ? 1 : Math.floor(step)), date;
};
interval.range = function (start, stop, step) {
var range = [],
previous;
start = interval.ceil(start);
step = step == null ? 1 : Math.floor(step);
if (!(start < stop) || !(step > 0)) return range; // also handles Invalid Date
do range.push(previous = new Date(+start)), offseti(start, step), floori(start); while (previous < start && start < stop);
return range;
};
interval.filter = function (test) {
return newInterval(function (date) {
if (date >= date) while (floori(date), !test(date)) date.setTime(date - 1);
}, function (date, step) {
if (date >= date) {
if (step < 0) while (++step <= 0) {
while (offseti(date, -1), !test(date)) {} // eslint-disable-line no-empty
} else while (--step >= 0) {
while (offseti(date, +1), !test(date)) {} // eslint-disable-line no-empty
}
}
});
};
if (count) {
interval.count = function (start, end) {
t0$1.setTime(+start), t1$1.setTime(+end);
floori(t0$1), floori(t1$1);
return Math.floor(count(t0$1, t1$1));
};
interval.every = function (step) {
step = Math.floor(step);
return !isFinite(step) || !(step > 0) ? null : !(step > 1) ? interval : interval.filter(field ? function (d) {
return field(d) % step === 0;
} : function (d) {
return interval.count(0, d) % step === 0;
});
};
}
return interval;
}
var millisecond = newInterval(function () {
// noop
}, function (date, step) {
date.setTime(+date + step);
}, function (start, end) {
return end - start;
});
// An optimized implementation for this simple case.
millisecond.every = function (k) {
k = Math.floor(k);
if (!isFinite(k) || !(k > 0)) return null;
if (!(k > 1)) return millisecond;
return newInterval(function (date) {
date.setTime(Math.floor(date / k) * k);
}, function (date, step) {
date.setTime(+date + step * k);
}, function (start, end) {
return (end - start) / k;
});
};
var durationSecond = 1e3;
var durationMinute = 6e4;
var durationHour = 36e5;
var durationDay = 864e5;
var durationWeek = 6048e5;
var second = newInterval(function (date) {
date.setTime(date - date.getMilliseconds());
}, function (date, step) {
date.setTime(+date + step * durationSecond);
}, function (start, end) {
return (end - start) / durationSecond;
}, function (date) {
return date.getUTCSeconds();
});
var minute = newInterval(function (date) {
date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond);
}, function (date, step) {
date.setTime(+date + step * durationMinute);
}, function (start, end) {
return (end - start) / durationMinute;
}, function (date) {
return date.getMinutes();
});
var hour = newInterval(function (date) {
date.setTime(date - date.getMilliseconds() - date.getSeconds() * durationSecond - date.getMinutes() * durationMinute);
}, function (date, step) {
date.setTime(+date + step * durationHour);
}, function (start, end) {
return (end - start) / durationHour;
}, function (date) {
return date.getHours();
});
var day = newInterval(function (date) {
date.setHours(0, 0, 0, 0);
}, function (date, step) {
date.setDate(date.getDate() + step);
}, function (start, end) {
return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationDay;
}, function (date) {
return date.getDate() - 1;
});
function weekday(i) {
return newInterval(function (date) {
date.setDate(date.getDate() - (date.getDay() + 7 - i) % 7);
date.setHours(0, 0, 0, 0);
}, function (date, step) {
date.setDate(date.getDate() + step * 7);
}, function (start, end) {
return (end - start - (end.getTimezoneOffset() - start.getTimezoneOffset()) * durationMinute) / durationWeek;
});
}
var sunday = weekday(0);
var monday = weekday(1);
var tuesday = weekday(2);
var wednesday = weekday(3);
var thursday = weekday(4);
var friday = weekday(5);
var saturday = weekday(6);
var month = newInterval(function (date) {
date.setDate(1);
date.setHours(0, 0, 0, 0);
}, function (date, step) {
date.setMonth(date.getMonth() + step);
}, function (start, end) {
return end.getMonth() - start.getMonth() + (end.getFullYear() - start.getFullYear()) * 12;
}, function (date) {
return date.getMonth();
});
var year = newInterval(function (date) {
date.setMonth(0, 1);
date.setHours(0, 0, 0, 0);
}, function (date, step) {
date.setFullYear(date.getFullYear() + step);
}, function (start, end) {
return end.getFullYear() - start.getFullYear();
}, function (date) {
return date.getFullYear();
});
// An optimized implementation for this simple case.
year.every = function (k) {
return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function (date) {
date.setFullYear(Math.floor(date.getFullYear() / k) * k);
date.setMonth(0, 1);
date.setHours(0, 0, 0, 0);
}, function (date, step) {
date.setFullYear(date.getFullYear() + step * k);
});
};
var utcMinute = newInterval(function (date) {
date.setUTCSeconds(0, 0);
}, function (date, step) {
date.setTime(+date + step * durationMinute);
}, function (start, end) {
return (end - start) / durationMinute;
}, function (date) {
return date.getUTCMinutes();
});
var utcHour = newInterval(function (date) {
date.setUTCMinutes(0, 0, 0);
}, function (date, step) {
date.setTime(+date + step * durationHour);
}, function (start, end) {
return (end - start) / durationHour;
}, function (date) {
return date.getUTCHours();
});
var utcDay = newInterval(function (date) {
date.setUTCHours(0, 0, 0, 0);
}, function (date, step) {
date.setUTCDate(date.getUTCDate() + step);
}, function (start, end) {
return (end - start) / durationDay;
}, function (date) {
return date.getUTCDate() - 1;
});
function utcWeekday(i) {
return newInterval(function (date) {
date.setUTCDate(date.getUTCDate() - (date.getUTCDay() + 7 - i) % 7);
date.setUTCHours(0, 0, 0, 0);
}, function (date, step) {
date.setUTCDate(date.getUTCDate() + step * 7);
}, function (start, end) {
return (end - start) / durationWeek;
});
}
var utcSunday = utcWeekday(0);
var utcMonday = utcWeekday(1);
var utcTuesday = utcWeekday(2);
var utcWednesday = utcWeekday(3);
var utcThursday = utcWeekday(4);
var utcFriday = utcWeekday(5);
var utcSaturday = utcWeekday(6);
var utcMonth = newInterval(function (date) {
date.setUTCDate(1);
date.setUTCHours(0, 0, 0, 0);
}, function (date, step) {
date.setUTCMonth(date.getUTCMonth() + step);
}, function (start, end) {
return end.getUTCMonth() - start.getUTCMonth() + (end.getUTCFullYear() - start.getUTCFullYear()) * 12;
}, function (date) {
return date.getUTCMonth();
});
var utcYear = newInterval(function (date) {
date.setUTCMonth(0, 1);
date.setUTCHours(0, 0, 0, 0);
}, function (date, step) {
date.setUTCFullYear(date.getUTCFullYear() + step);
}, function (start, end) {
return end.getUTCFullYear() - start.getUTCFullYear();
}, function (date) {
return date.getUTCFullYear();
});
// An optimized implementation for this simple case.
utcYear.every = function (k) {
return !isFinite(k = Math.floor(k)) || !(k > 0) ? null : newInterval(function (date) {
date.setUTCFullYear(Math.floor(date.getUTCFullYear() / k) * k);
date.setUTCMonth(0, 1);
date.setUTCHours(0, 0, 0, 0);
}, function (date, step) {
date.setUTCFullYear(date.getUTCFullYear() + step * k);
});
};
function localDate(d) {
if (0 <= d.y && d.y < 100) {
var date = new Date(-1, d.m, d.d, d.H, d.M, d.S, d.L);
date.setFullYear(d.y);
return date;
}
return new Date(d.y, d.m, d.d, d.H, d.M, d.S, d.L);
}
function utcDate(d) {
if (0 <= d.y && d.y < 100) {
var date = new Date(Date.UTC(-1, d.m, d.d, d.H, d.M, d.S, d.L));
date.setUTCFullYear(d.y);
return date;
}
return new Date(Date.UTC(d.y, d.m, d.d, d.H, d.M, d.S, d.L));
}
function newDate(y, m, d) {
return {
y: y,
m: m,
d: d,
H: 0,
M: 0,
S: 0,
L: 0
};
}
function formatLocale$1(locale) {
var locale_dateTime = locale.dateTime,
locale_date = locale.date,
locale_time = locale.time,
locale_periods = locale.periods,
locale_weekdays = locale.days,
locale_shortWeekdays = locale.shortDays,
locale_months = locale.months,
locale_shortMonths = locale.shortMonths;
var periodRe = formatRe(locale_periods),
periodLookup = formatLookup(locale_periods),
weekdayRe = formatRe(locale_weekdays),
weekdayLookup = formatLookup(locale_weekdays),
shortWeekdayRe = formatRe(locale_shortWeekdays),
shortWeekdayLookup = formatLookup(locale_shortWeekdays),
monthRe = formatRe(locale_months),
monthLookup = formatLookup(locale_months),
shortMonthRe = formatRe(locale_shortMonths),
shortMonthLookup = formatLookup(locale_shortMonths);
var formats = {
"a": formatShortWeekday,
"A": formatWeekday,
"b": formatShortMonth,
"B": formatMonth,
"c": null,
"d": formatDayOfMonth,
"e": formatDayOfMonth,
"f": formatMicroseconds,
"H": formatHour24,
"I": formatHour12,
"j": formatDayOfYear,
"L": formatMilliseconds,
"m": formatMonthNumber,
"M": formatMinutes,
"p": formatPeriod,
"q": formatQuarter,
"Q": formatUnixTimestamp,
"s": formatUnixTimestampSeconds,
"S": formatSeconds,
"u": formatWeekdayNumberMonday,
"U": formatWeekNumberSunday,
"V": formatWeekNumberISO,
"w": formatWeekdayNumberSunday,
"W": formatWeekNumberMonday,
"x": null,
"X": null,
"y": formatYear,
"Y": formatFullYear,
"Z": formatZone,
"%": formatLiteralPercent
};
var utcFormats = {
"a": formatUTCShortWeekday,
"A": formatUTCWeekday,
"b": formatUTCShortMonth,
"B": formatUTCMonth,
"c": null,
"d": formatUTCDayOfMonth,
"e": formatUTCDayOfMonth,
"f": formatUTCMicroseconds,
"H": formatUTCHour24,
"I": formatUTCHour12,
"j": formatUTCDayOfYear,
"L": formatUTCMilliseconds,
"m": formatUTCMonthNumber,
"M": formatUTCMinutes,
"p": formatUTCPeriod,
"q": formatUTCQuarter,
"Q": formatUnixTimestamp,
"s": formatUnixTimestampSeconds,
"S": formatUTCSeconds,
"u": formatUTCWeekdayNumberMonday,
"U": formatUTCWeekNumberSunday,
"V": formatUTCWeekNumberISO,
"w": formatUTCWeekdayNumberSunday,
"W": formatUTCWeekNumberMonday,
"x": null,
"X": null,
"y": formatUTCYear,
"Y": formatUTCFullYear,
"Z": formatUTCZone,
"%": formatLiteralPercent
};
var parses = {
"a": parseShortWeekday,
"A": parseWeekday,
"b": parseShortMonth,
"B": parseMonth,
"c": parseLocaleDateTime,
"d": parseDayOfMonth,
"e": parseDayOfMonth,
"f": parseMicroseconds,
"H": parseHour24,
"I": parseHour24,
"j": parseDayOfYear,
"L": parseMilliseconds,
"m": parseMonthNumber,
"M": parseMinutes,
"p": parsePeriod,
"q": parseQuarter,
"Q": parseUnixTimestamp,
"s": parseUnixTimestampSeconds,
"S": parseSeconds,
"u": parseWeekdayNumberMonday,
"U": parseWeekNumberSunday,
"V": parseWeekNumberISO,
"w": parseWeekdayNumberSunday,
"W": parseWeekNumberMonday,
"x": parseLocaleDate,
"X": parseLocaleTime,
"y": parseYear,
"Y": parseFullYear,
"Z": parseZone,
"%": parseLiteralPercent
};
// These recursive directive definitions must be deferred.
formats.x = newFormat(locale_date, formats);
formats.X = newFormat(locale_time, formats);
formats.c = newFormat(locale_dateTime, formats);
utcFormats.x = newFormat(locale_date, utcFormats);
utcFormats.X = newFormat(locale_time, utcFormats);
utcFormats.c = newFormat(locale_dateTime, utcFormats);
function newFormat(specifier, formats) {
return function (date) {
var string = [],
i = -1,
j = 0,
n = specifier.length,
c,
pad,
format;
if (!(date instanceof Date)) date = new Date(+date);
while (++i < n) {
if (specifier.charCodeAt(i) === 37) {
string.push(specifier.slice(j, i));
if ((pad = pads[c = specifier.charAt(++i)]) != null) c = specifier.charAt(++i);else pad = c === "e" ? " " : "0";
if (format = formats[c]) c = format(date, pad);
string.push(c);
j = i + 1;
}
}
string.push(specifier.slice(j, i));
return string.join("");
};
}
function newParse(specifier, Z) {
return function (string) {
var d = newDate(1900, undefined, 1),
i = parseSpecifier(d, specifier, string += "", 0),
week,
day$1;
if (i != string.length) return null;
// If a UNIX timestamp is specified, return it.
if ("Q" in d) return new Date(d.Q);
if ("s" in d) return new Date(d.s * 1000 + ("L" in d ? d.L : 0));
// If this is utcParse, never use the local timezone.
if (Z && !("Z" in d)) d.Z = 0;
// The am-pm flag is 0 for AM, and 1 for PM.
if ("p" in d) d.H = d.H % 12 + d.p * 12;
// If the month was not specified, inherit from the quarter.
if (d.m === undefined) d.m = "q" in d ? d.q : 0;
// Convert day-of-week and week-of-year to day-of-year.
if ("V" in d) {
if (d.V < 1 || d.V > 53) return null;
if (!("w" in d)) d.w = 1;
if ("Z" in d) {
week = utcDate(newDate(d.y, 0, 1)), day$1 = week.getUTCDay();
week = day$1 > 4 || day$1 === 0 ? utcMonday.ceil(week) : utcMonday(week);
week = utcDay.offset(week, (d.V - 1) * 7);
d.y = week.getUTCFullYear();
d.m = week.getUTCMonth();
d.d = week.getUTCDate() + (d.w + 6) % 7;
} else {
week = localDate(newDate(d.y, 0, 1)), day$1 = week.getDay();
week = day$1 > 4 || day$1 === 0 ? monday.ceil(week) : monday(week);
week = day.offset(week, (d.V - 1) * 7);
d.y = week.getFullYear();
d.m = week.getMonth();
d.d = week.getDate() + (d.w + 6) % 7;
}
} else if ("W" in d || "U" in d) {
if (!("w" in d)) d.w = "u" in d ? d.u % 7 : "W" in d ? 1 : 0;
day$1 = "Z" in d ? utcDate(newDate(d.y, 0, 1)).getUTCDay() : localDate(newDate(d.y, 0, 1)).getDay();
d.m = 0;
d.d = "W" in d ? (d.w + 6) % 7 + d.W * 7 - (day$1 + 5) % 7 : d.w + d.U * 7 - (day$1 + 6) % 7;
}
// If a time zone is specified, all fields are interpreted as UTC and then
// offset according to the specified time zone.
if ("Z" in d) {
d.H += d.Z / 100 | 0;
d.M += d.Z % 100;
return utcDate(d);
}
// Otherwise, all fields are in local time.
return localDate(d);
};
}
function parseSpecifier(d, specifier, string, j) {
var i = 0,
n = specifier.length,
m = string.length,
c,
parse;
while (i < n) {
if (j >= m) return -1;
c = specifier.charCodeAt(i++);
if (c === 37) {
c = specifier.charAt(i++);
parse = parses[c in pads ? specifier.charAt(i++) : c];
if (!parse || (j = parse(d, string, j)) < 0) return -1;
} else if (c != string.charCodeAt(j++)) {
return -1;
}
}
return j;
}
function parsePeriod(d, string, i) {
var n = periodRe.exec(string.slice(i));
return n ? (d.p = periodLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseShortWeekday(d, string, i) {
var n = shortWeekdayRe.exec(string.slice(i));
return n ? (d.w = shortWeekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseWeekday(d, string, i) {
var n = weekdayRe.exec(string.slice(i));
return n ? (d.w = weekdayLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseShortMonth(d, string, i) {
var n = shortMonthRe.exec(string.slice(i));
return n ? (d.m = shortMonthLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseMonth(d, string, i) {
var n = monthRe.exec(string.slice(i));
return n ? (d.m = monthLookup[n[0].toLowerCase()], i + n[0].length) : -1;
}
function parseLocaleDateTime(d, string, i) {
return parseSpecifier(d, locale_dateTime, string, i);
}
function parseLocaleDate(d, string, i) {
return parseSpecifier(d, locale_date, string, i);
}
function parseLocaleTime(d, string, i) {
return parseSpecifier(d, locale_time, string, i);
}
function formatShortWeekday(d) {
return locale_shortWeekdays[d.getDay()];
}
function formatWeekday(d) {
return locale_weekdays[d.getDay()];
}
function formatShortMonth(d) {
return locale_shortMonths[d.getMonth()];
}
function formatMonth(d) {
return locale_months[d.getMonth()];
}
function formatPeriod(d) {
return locale_periods[+(d.getHours() >= 12)];
}
function formatQuarter(d) {
return 1 + ~~(d.getMonth() / 3);
}
function formatUTCShortWeekday(d) {
return locale_shortWeekdays[d.getUTCDay()];
}
function formatUTCWeekday(d) {
return locale_weekdays[d.getUTCDay()];
}
function formatUTCShortMonth(d) {
return locale_shortMonths[d.getUTCMonth()];
}
function formatUTCMonth(d) {
return locale_months[d.getUTCMonth()];
}
function formatUTCPeriod(d) {
return locale_periods[+(d.getUTCHours() >= 12)];
}
function formatUTCQuarter(d) {
return 1 + ~~(d.getUTCMonth() / 3);
}
return {
format: function format(specifier) {
var f = newFormat(specifier += "", formats);
f.toString = function () {
return specifier;
};
return f;
},
parse: function parse(specifier) {
var p = newParse(specifier += "", false);
p.toString = function () {
return specifier;
};
return p;
},
utcFormat: function utcFormat(specifier) {
var f = newFormat(specifier += "", utcFormats);
f.toString = function () {
return specifier;
};
return f;
},
utcParse: function utcParse(specifier) {
var p = newParse(specifier += "", true);
p.toString = function () {
return specifier;
};
return p;
}
};
}
var pads = {
"-": "",
"_": " ",
"0": "0"
},
numberRe = /^\s*\d+/,
// note: ignores next directive
percentRe = /^%/,
requoteRe = /[\\^$*+?|[\]().{}]/g;
function pad(value, fill, width) {
var sign = value < 0 ? "-" : "",
string = (sign ? -value : value) + "",
length = string.length;
return sign + (length < width ? new Array(width - length + 1).join(fill) + string : string);
}
function requote(s) {
return s.replace(requoteRe, "\\$&");
}
function formatRe(names) {
return new RegExp("^(?:" + names.map(requote).join("|") + ")", "i");
}
function formatLookup(names) {
var map = {},
i = -1,
n = names.length;
while (++i < n) map[names[i].toLowerCase()] = i;
return map;
}
function parseWeekdayNumberSunday(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 1));
return n ? (d.w = +n[0], i + n[0].length) : -1;
}
function parseWeekdayNumberMonday(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 1));
return n ? (d.u = +n[0], i + n[0].length) : -1;
}
function parseWeekNumberSunday(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.U = +n[0], i + n[0].length) : -1;
}
function parseWeekNumberISO(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.V = +n[0], i + n[0].length) : -1;
}
function parseWeekNumberMonday(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.W = +n[0], i + n[0].length) : -1;
}
function parseFullYear(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 4));
return n ? (d.y = +n[0], i + n[0].length) : -1;
}
function parseYear(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.y = +n[0] + (+n[0] > 68 ? 1900 : 2000), i + n[0].length) : -1;
}
function parseZone(d, string, i) {
var n = /^(Z)|([+-]\d\d)(?::?(\d\d))?/.exec(string.slice(i, i + 6));
return n ? (d.Z = n[1] ? 0 : -(n[2] + (n[3] || "00")), i + n[0].length) : -1;
}
function parseQuarter(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 1));
return n ? (d.q = n[0] * 3 - 3, i + n[0].length) : -1;
}
function parseMonthNumber(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.m = n[0] - 1, i + n[0].length) : -1;
}
function parseDayOfMonth(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.d = +n[0], i + n[0].length) : -1;
}
function parseDayOfYear(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 3));
return n ? (d.m = 0, d.d = +n[0], i + n[0].length) : -1;
}
function parseHour24(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.H = +n[0], i + n[0].length) : -1;
}
function parseMinutes(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.M = +n[0], i + n[0].length) : -1;
}
function parseSeconds(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 2));
return n ? (d.S = +n[0], i + n[0].length) : -1;
}
function parseMilliseconds(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 3));
return n ? (d.L = +n[0], i + n[0].length) : -1;
}
function parseMicroseconds(d, string, i) {
var n = numberRe.exec(string.slice(i, i + 6));
return n ? (d.L = Math.floor(n[0] / 1000), i + n[0].length) : -1;
}
function parseLiteralPercent(d, string, i) {
var n = percentRe.exec(string.slice(i, i + 1));
return n ? i + n[0].length : -1;
}
function parseUnixTimestamp(d, string, i) {
var n = numberRe.exec(string.slice(i));
return n ? (d.Q = +n[0], i + n[0].length) : -1;
}
function parseUnixTimestampSeconds(d, string, i) {
var n = numberRe.exec(string.slice(i));
return n ? (d.s = +n[0], i + n[0].length) : -1;
}
function formatDayOfMonth(d, p) {
return pad(d.getDate(), p, 2);
}
function formatHour24(d, p) {
return pad(d.getHours(), p, 2);
}
function formatHour12(d, p) {
return pad(d.getHours() % 12 || 12, p, 2);
}
function formatDayOfYear(d, p) {
return pad(1 + day.count(year(d), d), p, 3);
}
function formatMilliseconds(d, p) {
return pad(d.getMilliseconds(), p, 3);
}
function formatMicroseconds(d, p) {
return formatMilliseconds(d, p) + "000";
}
function formatMonthNumber(d, p) {
return pad(d.getMonth() + 1, p, 2);
}
function formatMinutes(d, p) {
return pad(d.getMinutes(), p, 2);
}
function formatSeconds(d, p) {
return pad(d.getSeconds(), p, 2);
}
function formatWeekdayNumberMonday(d) {
var day = d.getDay();
return day === 0 ? 7 : day;
}
function formatWeekNumberSunday(d, p) {
return pad(sunday.count(year(d) - 1, d), p, 2);
}
function formatWeekNumberISO(d, p) {
var day = d.getDay();
d = day >= 4 || day === 0 ? thursday(d) : thursday.ceil(d);
return pad(thursday.count(year(d), d) + (year(d).getDay() === 4), p, 2);
}
function formatWeekdayNumberSunday(d) {
return d.getDay();
}
function formatWeekNumberMonday(d, p) {
return pad(monday.count(year(d) - 1, d), p, 2);
}
function formatYear(d, p) {
return pad(d.getFullYear() % 100, p, 2);
}
function formatFullYear(d, p) {
return pad(d.getFullYear() % 10000, p, 4);
}
function formatZone(d) {
var z = d.getTimezoneOffset();
return (z > 0 ? "-" : (z *= -1, "+")) + pad(z / 60 | 0, "0", 2) + pad(z % 60, "0", 2);
}
function formatUTCDayOfMonth(d, p) {
return pad(d.getUTCDate(), p, 2);
}
function formatUTCHour24(d, p) {
return pad(d.getUTCHours(), p, 2);
}
function formatUTCHour12(d, p) {
return pad(d.getUTCHours() % 12 || 12, p, 2);
}
function formatUTCDayOfYear(d, p) {
return pad(1 + utcDay.count(utcYear(d), d), p, 3);
}
function formatUTCMilliseconds(d, p) {
return pad(d.getUTCMilliseconds(), p, 3);
}
function formatUTCMicroseconds(d, p) {
return formatUTCMilliseconds(d, p) + "000";
}
function formatUTCMonthNumber(d, p) {
return pad(d.getUTCMonth() + 1, p, 2);
}
function formatUTCMinutes(d, p) {
return pad(d.getUTCMinutes(), p, 2);
}
function formatUTCSeconds(d, p) {
return pad(d.getUTCSeconds(), p, 2);
}
function formatUTCWeekdayNumberMonday(d) {
var dow = d.getUTCDay();
return dow === 0 ? 7 : dow;
}
function formatUTCWeekNumberSunday(d, p) {
return pad(utcSunday.count(utcYear(d) - 1, d), p, 2);
}
function formatUTCWeekNumberISO(d, p) {
var day = d.getUTCDay();
d = day >= 4 || day === 0 ? utcThursday(d) : utcThursday.ceil(d);
return pad(utcThursday.count(utcYear(d), d) + (utcYear(d).getUTCDay() === 4), p, 2);
}
function formatUTCWeekdayNumberSunday(d) {
return d.getUTCDay();
}
function formatUTCWeekNumberMonday(d, p) {
return pad(utcMonday.count(utcYear(d) - 1, d), p, 2);
}
function formatUTCYear(d, p) {
return pad(d.getUTCFullYear() % 100, p, 2);
}
function formatUTCFullYear(d, p) {
return pad(d.getUTCFullYear() % 10000, p, 4);
}
function formatUTCZone() {
return "+0000";
}
function formatLiteralPercent() {
return "%";
}
function formatUnixTimestamp(d) {
return +d;
}
function formatUnixTimestampSeconds(d) {
return Math.floor(+d / 1000);
}
var locale$1;
var timeFormat;
var timeParse;
var utcFormat;
var utcParse;
defaultLocale$1({
dateTime: "%x, %X",
date: "%-m/%-d/%Y",
time: "%-I:%M:%S %p",
periods: ["AM", "PM"],
days: ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"],
shortDays: ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"],
months: ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"],
shortMonths: ["Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"]
});
function defaultLocale$1(definition) {
locale$1 = formatLocale$1(definition);
timeFormat = locale$1.format;
timeParse = locale$1.parse;
utcFormat = locale$1.utcFormat;
utcParse = locale$1.utcParse;
return locale$1;
}
var isoSpecifier = "%Y-%m-%dT%H:%M:%S.%LZ";
function formatIsoNative(date) {
return date.toISOString();
}
var formatIso = Date.prototype.toISOString ? formatIsoNative : utcFormat(isoSpecifier);
function parseIsoNative(string) {
var date = new Date(string);
return isNaN(date) ? null : date;
}
var parseIso = +new Date("2000-01-01T00:00:00.000Z") ? parseIsoNative : utcParse(isoSpecifier);
var noop = {
value: function value() {}
};
function dispatch() {
for (var i = 0, n = arguments.length, _ = {}, t; i < n; ++i) {
if (!(t = arguments[i] + "") || t in _ || /[\s.]/.test(t)) throw new Error("illegal type: " + t);
_[t] = [];
}
return new Dispatch(_);
}
function Dispatch(_) {
this._ = _;
}
function parseTypenames(typenames, types) {
return typenames.trim().split(/^|\s+/).map(function (t) {
var name = "",
i = t.indexOf(".");
if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
if (t && !types.hasOwnProperty(t)) throw new Error("unknown type: " + t);
return {
type: t,
name: name
};
});
}
Dispatch.prototype = dispatch.prototype = {
constructor: Dispatch,
on: function on(typename, callback) {
var _ = this._,
T = parseTypenames(typename + "", _),
t,
i = -1,
n = T.length;
// If no callback was specified, return the callback of the given type and name.
if (arguments.length < 2) {
while (++i < n) if ((t = (typename = T[i]).type) && (t = get(_[t], typename.name))) return t;
return;
}
// If a type was specified, set the callback for the given type and name.
// Otherwise, if a null callback was specified, remove callbacks of the given name.
if (callback != null && typeof callback !== "function") throw new Error("invalid callback: " + callback);
while (++i < n) {
if (t = (typename = T[i]).type) _[t] = set(_[t], typename.name, callback);else if (callback == null) for (t in _) _[t] = set(_[t], typename.name, null);
}
return this;
},
copy: function copy() {
var copy = {},
_ = this._;
for (var t in _) copy[t] = _[t].slice();
return new Dispatch(copy);
},
call: function call(type, that) {
if ((n = arguments.length - 2) > 0) for (var args = new Array(n), i = 0, n, t; i < n; ++i) args[i] = arguments[i + 2];
if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
for (t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
},
apply: function apply(type, that, args) {
if (!this._.hasOwnProperty(type)) throw new Error("unknown type: " + type);
for (var t = this._[type], i = 0, n = t.length; i < n; ++i) t[i].value.apply(that, args);
}
};
function get(type, name) {
for (var i = 0, n = type.length, c; i < n; ++i) {
if ((c = type[i]).name === name) {
return c.value;
}
}
}
function set(type, name, callback) {
for (var i = 0, n = type.length; i < n; ++i) {
if (type[i].name === name) {
type[i] = noop, type = type.slice(0, i).concat(type.slice(i + 1));
break;
}
}
if (callback != null) type.push({
name: name,
value: callback
});
return type;
}
var xhtml = "http://www.w3.org/1999/xhtml";
var namespaces = {
svg: "http://www.w3.org/2000/svg",
xhtml: xhtml,
xlink: "http://www.w3.org/1999/xlink",
xml: "http://www.w3.org/XML/1998/namespace",
xmlns: "http://www.w3.org/2000/xmlns/"
};
function namespace(name) {
var prefix = name += "",
i = prefix.indexOf(":");
if (i >= 0 && (prefix = name.slice(0, i)) !== "xmlns") name = name.slice(i + 1);
return namespaces.hasOwnProperty(prefix) ? {
space: namespaces[prefix],
local: name
} : name;
}
function creatorInherit(name) {
return function () {
var document = this.ownerDocument,
uri = this.namespaceURI;
return uri === xhtml && document.documentElement.namespaceURI === xhtml ? document.createElement(name) : document.createElementNS(uri, name);
};
}
function creatorFixed(fullname) {
return function () {
return this.ownerDocument.createElementNS(fullname.space, fullname.local);
};
}
function creator(name) {
var fullname = namespace(name);
return (fullname.local ? creatorFixed : creatorInherit)(fullname);
}
function none() {}
function selector(selector) {
return selector == null ? none : function () {
return this.querySelector(selector);
};
}
function selection_select(select) {
if (typeof select !== "function") select = selector(select);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = new Array(n), node, subnode, i = 0; i < n; ++i) {
if ((node = group[i]) && (subnode = select.call(node, node.__data__, i, group))) {
if ("__data__" in node) subnode.__data__ = node.__data__;
subgroup[i] = subnode;
}
}
}
return new Selection(subgroups, this._parents);
}
function empty() {
return [];
}
function selectorAll(selector) {
return selector == null ? empty : function () {
return this.querySelectorAll(selector);
};
}
function selection_selectAll(select) {
if (typeof select !== "function") select = selectorAll(select);
for (var groups = this._groups, m = groups.length, subgroups = [], parents = [], j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, node, i = 0; i < n; ++i) {
if (node = group[i]) {
subgroups.push(select.call(node, node.__data__, i, group));
parents.push(node);
}
}
}
return new Selection(subgroups, parents);
}
function matcher(selector) {
return function () {
return this.matches(selector);
};
}
function selection_filter(match) {
if (typeof match !== "function") match = matcher(match);
for (var groups = this._groups, m = groups.length, subgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, subgroup = subgroups[j] = [], node, i = 0; i < n; ++i) {
if ((node = group[i]) && match.call(node, node.__data__, i, group)) {
subgroup.push(node);
}
}
}
return new Selection(subgroups, this._parents);
}
function sparse(update) {
return new Array(update.length);
}
function selection_enter() {
return new Selection(this._enter || this._groups.map(sparse), this._parents);
}
function EnterNode(parent, datum) {
this.ownerDocument = parent.ownerDocument;
this.namespaceURI = parent.namespaceURI;
this._next = null;
this._parent = parent;
this.__data__ = datum;
}
EnterNode.prototype = {
constructor: EnterNode,
appendChild: function appendChild(child) {
return this._parent.insertBefore(child, this._next);
},
insertBefore: function insertBefore(child, next) {
return this._parent.insertBefore(child, next);
},
querySelector: function querySelector(selector) {
return this._parent.querySelector(selector);
},
querySelectorAll: function querySelectorAll(selector) {
return this._parent.querySelectorAll(selector);
}
};
function constant$2(x) {
return function () {
return x;
};
}
var keyPrefix = "$"; // Protect against keys like “__proto__”.
function bindIndex(parent, group, enter, update, exit, data) {
var i = 0,
node,
groupLength = group.length,
dataLength = data.length;
// Put any non-null nodes that fit into update.
// Put any null nodes into enter.
// Put any remaining data into enter.
for (; i < dataLength; ++i) {
if (node = group[i]) {
node.__data__ = data[i];
update[i] = node;
} else {
enter[i] = new EnterNode(parent, data[i]);
}
}
// Put any non-null nodes that don’t fit into exit.
for (; i < groupLength; ++i) {
if (node = group[i]) {
exit[i] = node;
}
}
}
function bindKey(parent, group, enter, update, exit, data, key) {
var i,
node,
nodeByKeyValue = {},
groupLength = group.length,
dataLength = data.length,
keyValues = new Array(groupLength),
keyValue;
// Compute the key for each node.
// If multiple nodes have the same key, the duplicates are added to exit.
for (i = 0; i < groupLength; ++i) {
if (node = group[i]) {
keyValues[i] = keyValue = keyPrefix + key.call(node, node.__data__, i, group);
if (keyValue in nodeByKeyValue) {
exit[i] = node;
} else {
nodeByKeyValue[keyValue] = node;
}
}
}
// Compute the key for each datum.
// If there a node associated with this key, join and add it to update.
// If there is not (or the key is a duplicate), add it to enter.
for (i = 0; i < dataLength; ++i) {
keyValue = keyPrefix + key.call(parent, data[i], i, data);
if (node = nodeByKeyValue[keyValue]) {
update[i] = node;
node.__data__ = data[i];
nodeByKeyValue[keyValue] = null;
} else {
enter[i] = new EnterNode(parent, data[i]);
}
}
// Add any remaining nodes that were not bound to data to exit.
for (i = 0; i < groupLength; ++i) {
if ((node = group[i]) && nodeByKeyValue[keyValues[i]] === node) {
exit[i] = node;
}
}
}
function selection_data(value, key) {
if (!value) {
data = new Array(this.size()), j = -1;
this.each(function (d) {
data[++j] = d;
});
return data;
}
var bind = key ? bindKey : bindIndex,
parents = this._parents,
groups = this._groups;
if (typeof value !== "function") value = constant$2(value);
for (var m = groups.length, update = new Array(m), enter = new Array(m), exit = new Array(m), j = 0; j < m; ++j) {
var parent = parents[j],
group = groups[j],
groupLength = group.length,
data = value.call(parent, parent && parent.__data__, j, parents),
dataLength = data.length,
enterGroup = enter[j] = new Array(dataLength),
updateGroup = update[j] = new Array(dataLength),
exitGroup = exit[j] = new Array(groupLength);
bind(parent, group, enterGroup, updateGroup, exitGroup, data, key);
// Now connect the enter nodes to their following update node, such that
// appendChild can insert the materialized enter node before this node,
// rather than at the end of the parent node.
for (var i0 = 0, i1 = 0, previous, next; i0 < dataLength; ++i0) {
if (previous = enterGroup[i0]) {
if (i0 >= i1) i1 = i0 + 1;
while (!(next = updateGroup[i1]) && ++i1 < dataLength);
previous._next = next || null;
}
}
}
update = new Selection(update, parents);
update._enter = enter;
update._exit = exit;
return update;
}
function selection_exit() {
return new Selection(this._exit || this._groups.map(sparse), this._parents);
}
function selection_join(onenter, onupdate, onexit) {
var enter = this.enter(),
update = this,
exit = this.exit();
enter = typeof onenter === "function" ? onenter(enter) : enter.append(onenter + "");
if (onupdate != null) update = onupdate(update);
if (onexit == null) exit.remove();else onexit(exit);
return enter && update ? enter.merge(update).order() : update;
}
function selection_merge(selection) {
for (var groups0 = this._groups, groups1 = selection._groups, m0 = groups0.length, m1 = groups1.length, m = Math.min(m0, m1), merges = new Array(m0), j = 0; j < m; ++j) {
for (var group0 = groups0[j], group1 = groups1[j], n = group0.length, merge = merges[j] = new Array(n), node, i = 0; i < n; ++i) {
if (node = group0[i] || group1[i]) {
merge[i] = node;
}
}
}
for (; j < m0; ++j) {
merges[j] = groups0[j];
}
return new Selection(merges, this._parents);
}
function selection_order() {
for (var groups = this._groups, j = -1, m = groups.length; ++j < m;) {
for (var group = groups[j], i = group.length - 1, next = group[i], node; --i >= 0;) {
if (node = group[i]) {
if (next && node.compareDocumentPosition(next) ^ 4) next.parentNode.insertBefore(node, next);
next = node;
}
}
}
return this;
}
function selection_sort(compare) {
if (!compare) compare = ascending$1;
function compareNode(a, b) {
return a && b ? compare(a.__data__, b.__data__) : !a - !b;
}
for (var groups = this._groups, m = groups.length, sortgroups = new Array(m), j = 0; j < m; ++j) {
for (var group = groups[j], n = group.length, sortgroup = sortgroups[j] = new Array(n), node, i = 0; i < n; ++i) {
if (node = group[i]) {
sortgroup[i] = node;
}
}
sortgroup.sort(compareNode);
}
return new Selection(sortgroups, this._parents).order();
}
function ascending$1(a, b) {
return a < b ? -1 : a > b ? 1 : a >= b ? 0 : NaN;
}
function selection_call() {
var callback = arguments[0];
arguments[0] = this;
callback.apply(null, arguments);
return this;
}
function selection_nodes() {
var nodes = new Array(this.size()),
i = -1;
this.each(function () {
nodes[++i] = this;
});
return nodes;
}
function selection_node() {
for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
for (var group = groups[j], i = 0, n = group.length; i < n; ++i) {
var node = group[i];
if (node) return node;
}
}
return null;
}
function selection_size() {
var size = 0;
this.each(function () {
++size;
});
return size;
}
function selection_empty() {
return !this.node();
}
function selection_each(callback) {
for (var groups = this._groups, j = 0, m = groups.length; j < m; ++j) {
for (var group = groups[j], i = 0, n = group.length, node; i < n; ++i) {
if (node = group[i]) callback.call(node, node.__data__, i, group);
}
}
return this;
}
function attrRemove(name) {
return function () {
this.removeAttribute(name);
};
}
function attrRemoveNS(fullname) {
return function () {
this.removeAttributeNS(fullname.space, fullname.local);
};
}
function attrConstant(name, value) {
return function () {
this.setAttribute(name, value);
};
}
function attrConstantNS(fullname, value) {
return function () {
this.setAttributeNS(fullname.space, fullname.local, value);
};
}
function attrFunction(name, value) {
return function () {
var v = value.apply(this, arguments);
if (v == null) this.removeAttribute(name);else this.setAttribute(name, v);
};
}
function attrFunctionNS(fullname, value) {
return function () {
var v = value.apply(this, arguments);
if (v == null) this.removeAttributeNS(fullname.space, fullname.local);else this.setAttributeNS(fullname.space, fullname.local, v);
};
}
function selection_attr(name, value) {
var fullname = namespace(name);
if (arguments.length < 2) {
var node = this.node();
return fullname.local ? node.getAttributeNS(fullname.space, fullname.local) : node.getAttribute(fullname);
}
return this.each((value == null ? fullname.local ? attrRemoveNS : attrRemove : typeof value === "function" ? fullname.local ? attrFunctionNS : attrFunction : fullname.local ? attrConstantNS : attrConstant)(fullname, value));
}
function defaultView(node) {
return node.ownerDocument && node.ownerDocument.defaultView // node is a Node
|| node.document && node // node is a Window
|| node.defaultView; // node is a Document
}
function styleRemove(name) {
return function () {
this.style.removeProperty(name);
};
}
function styleConstant(name, value, priority) {
return function () {
this.style.setProperty(name, value, priority);
};
}
function styleFunction(name, value, priority) {
return function () {
var v = value.apply(this, arguments);
if (v == null) this.style.removeProperty(name);else this.style.setProperty(name, v, priority);
};
}
function selection_style(name, value, priority) {
return arguments.length > 1 ? this.each((value == null ? styleRemove : typeof value === "function" ? styleFunction : styleConstant)(name, value, priority == null ? "" : priority)) : styleValue(this.node(), name);
}
function styleValue(node, name) {
return node.style.getPropertyValue(name) || defaultView(node).getComputedStyle(node, null).getPropertyValue(name);
}
function propertyRemove(name) {
return function () {
delete this[name];
};
}
function propertyConstant(name, value) {
return function () {
this[name] = value;
};
}
function propertyFunction(name, value) {
return function () {
var v = value.apply(this, arguments);
if (v == null) delete this[name];else this[name] = v;
};
}
function selection_property(name, value) {
return arguments.length > 1 ? this.each((value == null ? propertyRemove : typeof value === "function" ? propertyFunction : propertyConstant)(name, value)) : this.node()[name];
}
function classArray(string) {
return string.trim().split(/^|\s+/);
}
function classList(node) {
return node.classList || new ClassList(node);
}
function ClassList(node) {
this._node = node;
this._names = classArray(node.getAttribute("class") || "");
}
ClassList.prototype = {
add: function add(name) {
var i = this._names.indexOf(name);
if (i < 0) {
this._names.push(name);
this._node.setAttribute("class", this._names.join(" "));
}
},
remove: function remove(name) {
var i = this._names.indexOf(name);
if (i >= 0) {
this._names.splice(i, 1);
this._node.setAttribute("class", this._names.join(" "));
}
},
contains: function contains(name) {
return this._names.indexOf(name) >= 0;
}
};
function classedAdd(node, names) {
var list = classList(node),
i = -1,
n = names.length;
while (++i < n) list.add(names[i]);
}
function classedRemove(node, names) {
var list = classList(node),
i = -1,
n = names.length;
while (++i < n) list.remove(names[i]);
}
function classedTrue(names) {
return function () {
classedAdd(this, names);
};
}
function classedFalse(names) {
return function () {
classedRemove(this, names);
};
}
function classedFunction(names, value) {
return function () {
(value.apply(this, arguments) ? classedAdd : classedRemove)(this, names);
};
}
function selection_classed(name, value) {
var names = classArray(name + "");
if (arguments.length < 2) {
var list = classList(this.node()),
i = -1,
n = names.length;
while (++i < n) if (!list.contains(names[i])) return false;
return true;
}
return this.each((typeof value === "function" ? classedFunction : value ? classedTrue : classedFalse)(names, value));
}
function textRemove() {
this.textContent = "";
}
function textConstant(value) {
return function () {
this.textContent = value;
};
}
function textFunction(value) {
return function () {
var v = value.apply(this, arguments);
this.textContent = v == null ? "" : v;
};
}
function selection_text(value) {
return arguments.length ? this.each(value == null ? textRemove : (typeof value === "function" ? textFunction : textConstant)(value)) : this.node().textContent;
}
function htmlRemove() {
this.innerHTML = "";
}
function htmlConstant(value) {
return function () {
this.innerHTML = value;
};
}
function htmlFunction(value) {
return function () {
var v = value.apply(this, arguments);
this.innerHTML = v == null ? "" : v;
};
}
function selection_html(value) {
return arguments.length ? this.each(value == null ? htmlRemove : (typeof value === "function" ? htmlFunction : htmlConstant)(value)) : this.node().innerHTML;
}
function raise() {
if (this.nextSibling) this.parentNode.appendChild(this);
}
function selection_raise() {
return this.each(raise);
}
function lower() {
if (this.previousSibling) this.parentNode.insertBefore(this, this.parentNode.firstChild);
}
function selection_lower() {
return this.each(lower);
}
function selection_append(name) {
var create = typeof name === "function" ? name : creator(name);
return this.select(function () {
return this.appendChild(create.apply(this, arguments));
});
}
function constantNull() {
return null;
}
function selection_insert(name, before) {
var create = typeof name === "function" ? name : creator(name),
select = before == null ? constantNull : typeof before === "function" ? before : selector(before);
return this.select(function () {
return this.insertBefore(create.apply(this, arguments), select.apply(this, arguments) || null);
});
}
function remove() {
var parent = this.parentNode;
if (parent) parent.removeChild(this);
}
function selection_remove() {
return this.each(remove);
}
function selection_cloneShallow() {
var clone = this.cloneNode(false),
parent = this.parentNode;
return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
}
function selection_cloneDeep() {
var clone = this.cloneNode(true),
parent = this.parentNode;
return parent ? parent.insertBefore(clone, this.nextSibling) : clone;
}
function selection_clone(deep) {
return this.select(deep ? selection_cloneDeep : selection_cloneShallow);
}
function selection_datum(value) {
return arguments.length ? this.property("__data__", value) : this.node().__data__;
}
var filterEvents = {};
var event = null;
if (typeof document !== "undefined") {
var element = document.documentElement;
if (!("onmouseenter" in element)) {
filterEvents = {
mouseenter: "mouseover",
mouseleave: "mouseout"
};
}
}
function filterContextListener(listener, index, group) {
listener = contextListener(listener, index, group);
return function (event) {
var related = event.relatedTarget;
if (!related || related !== this && !(related.compareDocumentPosition(this) & 8)) {
listener.call(this, event);
}
};
}
function contextListener(listener, index, group) {
return function (event1) {
var event0 = event; // Events can be reentrant (e.g., focus).
event = event1;
try {
listener.call(this, this.__data__, index, group);
} finally {
event = event0;
}
};
}
function parseTypenames$1(typenames) {
return typenames.trim().split(/^|\s+/).map(function (t) {
var name = "",
i = t.indexOf(".");
if (i >= 0) name = t.slice(i + 1), t = t.slice(0, i);
return {
type: t,
name: name
};
});
}
function onRemove(typename) {
return function () {
var on = this.__on;
if (!on) return;
for (var j = 0, i = -1, m = on.length, o; j < m; ++j) {
if (o = on[j], (!typename.type || o.type === typename.type) && o.name === typename.name) {
this.removeEventListener(o.type, o.listener, o.capture);
} else {
on[++i] = o;
}
}
if (++i) on.length = i;else delete this.__on;
};
}
function onAdd(typename, value, capture) {
var wrap = filterEvents.hasOwnProperty(typename.type) ? filterContextListener : contextListener;
return function (d, i, group) {
var on = this.__on,
o,
listener = wrap(value, i, group);
if (on) for (var j = 0, m = on.length; j < m; ++j) {
if ((o = on[j]).type === typename.type && o.name === typename.name) {
this.removeEventListener(o.type, o.listener, o.capture);
this.addEventListener(o.type, o.listener = listener, o.capture = capture);
o.value = value;
return;
}
}
this.addEventListener(typename.type, listener, capture);
o = {
type: typename.type,
name: typename.name,
value: value,
listener: listener,
capture: capture
};
if (!on) this.__on = [o];else on.push(o);
};
}
function selection_on(typename, value, capture) {
var typenames = parseTypenames$1(typename + ""),
i,
n = typenames.length,
t;
if (arguments.length < 2) {
var on = this.node().__on;
if (on) for (var j = 0, m = on.length, o; j < m; ++j) {
for (i = 0, o = on[j]; i < n; ++i) {
if ((t = typenames[i]).type === o.type && t.name === o.name) {
return o.value;
}
}
}
return;
}
on = value ? onAdd : onRemove;
if (capture == null) capture = false;
for (i = 0; i < n; ++i) this.each(on(typenames[i], value, capture));
return this;
}
function customEvent(event1, listener, that, args) {
var event0 = event;
event1.sourceEvent = event;
event = event1;
try {
return listener.apply(that, args);
} finally {
event = event0;
}
}
function dispatchEvent(node, type, params) {
var window = defaultView(node),
event = window.CustomEvent;
if (typeof event === "function") {
event = new event(type, params);
} else {
event = window.document.createEvent("Event");
if (params) event.initEvent(type, params.bubbles, params.cancelable), event.detail = params.detail;else event.initEvent(type, false, false);
}
node.dispatchEvent(event);
}
function dispatchConstant(type, params) {
return function () {
return dispatchEvent(this, type, params);
};
}
function dispatchFunction(type, params) {
return function () {
return dispatchEvent(this, type, params.apply(this, arguments));
};
}
function selection_dispatch(type, params) {
return this.each((typeof params === "function" ? dispatchFunction : dispatchConstant)(type, params));
}
var root = [null];
function Selection(groups, parents) {
this._groups = groups;
this._parents = parents;
}
function selection() {
return new Selection([[document.documentElement]], root);
}
Selection.prototype = selection.prototype = {
constructor: Selection,
select: selection_select,
selectAll: selection_selectAll,
filter: selection_filter,
data: selection_data,
enter: selection_enter,
exit: selection_exit,
join: selection_join,
merge: selection_merge,
order: selection_order,
sort: selection_sort,
call: selection_call,
nodes: selection_nodes,
node: selection_node,
size: selection_size,
empty: selection_empty,
each: selection_each,
attr: selection_attr,
style: selection_style,
property: selection_property,
classed: selection_classed,
text: selection_text,
html: selection_html,
raise: selection_raise,
lower: selection_lower,
append: selection_append,
insert: selection_insert,
remove: selection_remove,
clone: selection_clone,
datum: selection_datum,
on: selection_on,
dispatch: selection_dispatch
};
function select(selector) {
return typeof selector === "string" ? new Selection([[document.querySelector(selector)]], [document.documentElement]) : new Selection([[selector]], root);
}
function sourceEvent() {
var current = event,
source;
while (source = current.sourceEvent) current = source;
return current;
}
function point(node, event) {
var svg = node.ownerSVGElement || node;
if (svg.createSVGPoint) {
var point = svg.createSVGPoint();
point.x = event.clientX, point.y = event.clientY;
point = point.matrixTransform(node.getScreenCTM().inverse());
return [point.x, point.y];
}
var rect = node.getBoundingClientRect();
return [event.clientX - rect.left - node.clientLeft, event.clientY - rect.top - node.clientTop];
}
function mouse(node) {
var event = sourceEvent();
if (event.changedTouches) event = event.changedTouches[0];
return point(node, event);
}
function touch(node, touches, identifier) {
if (arguments.length < 3) identifier = touches, touches = sourceEvent().changedTouches;
for (var i = 0, n = touches ? touches.length : 0, touch; i < n; ++i) {
if ((touch = touches[i]).identifier === identifier) {
return point(node, touch);
}
}
return null;
}
function nopropagation() {
event.stopImmediatePropagation();
}
function noevent() {
event.preventDefault();
event.stopImmediatePropagation();
}
function nodrag(view) {
var root = view.document.documentElement,
selection = select(view).on("dragstart.drag", noevent, true);
if ("onselectstart" in root) {
selection.on("selectstart.drag", noevent, true);
} else {
root.__noselect = root.style.MozUserSelect;
root.style.MozUserSelect = "none";
}
}
function yesdrag(view, noclick) {
var root = view.document.documentElement,
selection = select(view).on("dragstart.drag", null);
if (noclick) {
selection.on("click.drag", noevent, true);
setTimeout(function () {
selection.on("click.drag", null);
}, 0);
}
if ("onselectstart" in root) {
selection.on("selectstart.drag", null);
} else {
root.style.MozUserSelect = root.__noselect;
delete root.__noselect;
}
}
function constant$3(x) {
return function () {
return x;
};
}
function DragEvent(target, type, subject, id, active, x, y, dx, dy, dispatch) {
this.target = target;
this.type = type;
this.subject = subject;
this.identifier = id;
this.active = active;
this.x = x;
this.y = y;
this.dx = dx;
this.dy = dy;
this._ = dispatch;
}
DragEvent.prototype.on = function () {
var value = this._.on.apply(this._, arguments);
return value === this._ ? this : value;
};
// Ignore right-click, since that should open the context menu.
function defaultFilter() {
return !event.ctrlKey && !event.button;
}
function defaultContainer() {
return this.parentNode;
}
function defaultSubject(d) {
return d == null ? {
x: event.x,
y: event.y
} : d;
}
function defaultTouchable() {
return navigator.maxTouchPoints || "ontouchstart" in this;
}
function drag() {
var filter = defaultFilter,
container = defaultContainer,
subject = defaultSubject,
touchable = defaultTouchable,
gestures = {},
listeners = dispatch("start", "drag", "end"),
active = 0,
mousedownx,
mousedowny,
mousemoving,
touchending,
clickDistance2 = 0;
function drag(selection) {
selection.on("mousedown.drag", mousedowned).filter(touchable).on("touchstart.drag", touchstarted).on("touchmove.drag", touchmoved).on("touchend.drag touchcancel.drag", touchended).style("touch-action", "none").style("-webkit-tap-highlight-color", "rgba(0,0,0,0)");
}
function mousedowned() {
if (touchending || !filter.apply(this, arguments)) return;
var gesture = beforestart("mouse", container.apply(this, arguments), mouse, this, arguments);
if (!gesture) return;
select(event.view).on("mousemove.drag", mousemoved, true).on("mouseup.drag", mouseupped, true);
nodrag(event.view);
nopropagation();
mousemoving = false;
mousedownx = event.clientX;
mousedowny = event.clientY;
gesture("start");
}
function mousemoved() {
noevent();
if (!mousemoving) {
var dx = event.clientX - mousedownx,
dy = event.clientY - mousedowny;
mousemoving = dx * dx + dy * dy > clickDistance2;
}
gestures.mouse("drag");
}
function mouseupped() {
select(event.view).on("mousemove.drag mouseup.drag", null);
yesdrag(event.view, mousemoving);
noevent();
gestures.mouse("end");
}
function touchstarted() {
if (!filter.apply(this, arguments)) return;
var touches = event.changedTouches,
c = container.apply(this, arguments),
n = touches.length,
i,
gesture;
for (i = 0; i < n; ++i) {
if (gesture = beforestart(touches[i].identifier, c, touch, this, arguments)) {
nopropagation();
gesture("start");
}
}
}
function touchmoved() {
var touches = event.changedTouches,
n = touches.length,
i,
gesture;
for (i = 0; i < n; ++i) {
if (gesture = gestures[touches[i].identifier]) {
noevent();
gesture("drag");
}
}
}
function touchended() {
var touches = event.changedTouches,
n = touches.length,
i,
gesture;
if (touchending) clearTimeout(touchending);
touchending = setTimeout(function () {
touchending = null;
}, 500); // Ghost clicks are delayed!
for (i = 0; i < n; ++i) {
if (gesture = gestures[touches[i].identifier]) {
nopropagation();
gesture("end");
}
}
}
function beforestart(id, container, point, that, args) {
var p = point(container, id),
s,
dx,
dy,
sublisteners = listeners.copy();
if (!customEvent(new DragEvent(drag, "beforestart", s, id, active, p[0], p[1], 0, 0, sublisteners), function () {
if ((event.subject = s = subject.apply(that, args)) == null) return false;
dx = s.x - p[0] || 0;
dy = s.y - p[1] || 0;
return true;
})) return;
return function gesture(type) {
var p0 = p,
n;
switch (type) {
case "start":
gestures[id] = gesture, n = active++;
break;
case "end":
delete gestures[id], --active;
// nobreak
case "drag":
p = point(container, id), n = active;
break;
}
customEvent(new DragEvent(drag, type, s, id, n, p[0] + dx, p[1] + dy, p[0] - p0[0], p[1] - p0[1], sublisteners), sublisteners.apply, sublisteners, [type, that, args]);
};
}
drag.filter = function (_) {
return arguments.length ? (filter = typeof _ === "function" ? _ : constant$3(!!_), drag) : filter;
};
drag.container = function (_) {
return arguments.length ? (container = typeof _ === "function" ? _ : constant$3(_), drag) : container;
};
drag.subject = function (_) {
return arguments.length ? (subject = typeof _ === "function" ? _ : constant$3(_), drag) : subject;
};
drag.touchable = function (_) {
return arguments.length ? (touchable = typeof _ === "function" ? _ : constant$3(!!_), drag) : touchable;
};
drag.on = function () {
var value = listeners.on.apply(listeners, arguments);
return value === listeners ? drag : value;
};
drag.clickDistance = function (_) {
return arguments.length ? (clickDistance2 = (_ = +_) * _, drag) : Math.sqrt(clickDistance2);
};
return drag;
}
// Copyright 2018 The Distill Template Authors
var T$a = Template('d-slider', "\n\n\n
\n \n \n
\n \n \n
\n \n
\n");
// ARIA
// If the slider has a visible label, it is referenced by aria-labelledby on the slider element. Otherwise, the slider element has a label provided by aria-label.
// If the slider is vertically oriented, it has aria-orientation set to vertical. The default value of aria-orientation for a slider is horizontal.
var keyCodes = {
left: 37,
up: 38,
right: 39,
down: 40,
pageUp: 33,
pageDown: 34,
end: 35,
home: 36
};
var Slider = /*#__PURE__*/function (_T$a) {
function Slider() {
_classCallCheck(this, Slider);
return _callSuper(this, Slider, arguments);
}
_inherits(Slider, _T$a);
return _createClass(Slider, [{
key: "connectedCallback",
value: function connectedCallback() {
var _this19 = this;
this.connected = true;
this.setAttribute('role', 'slider');
// Makes the element tab-able.
if (!this.hasAttribute('tabindex')) {
this.setAttribute('tabindex', 0);
}
// Keeps track of keyboard vs. mouse interactions for focus rings
this.mouseEvent = false;
// Handles to shadow DOM elements
this.knob = this.root.querySelector('.knob-container');
this.background = this.root.querySelector('.background');
this.trackFill = this.root.querySelector('.track-fill');
this.track = this.root.querySelector('.track');
// Default values for attributes
this.min = this.min ? this.min : 0;
this.max = this.max ? this.max : 100;
this.scale = linear$1().domain([this.min, this.max]).range([0, 1]).clamp(true);
this.origin = this.origin !== undefined ? this.origin : this.min;
this.step = this.step ? this.step : 1;
this.update(this.value ? this.value : 0);
this.ticks = this.ticks ? this.ticks : false;
this.renderTicks();
this.drag = drag().container(this.background).on('start', function () {
_this19.mouseEvent = true;
_this19.background.classList.add('mousedown');
_this19.changeValue = _this19.value;
_this19.dragUpdate();
}).on('drag', function () {
_this19.dragUpdate();
}).on('end', function () {
_this19.mouseEvent = false;
_this19.background.classList.remove('mousedown');
_this19.dragUpdate();
if (_this19.changeValue !== _this19.value) _this19.dispatchChange();
_this19.changeValue = _this19.value;
});
this.drag(select(this.background));
this.addEventListener('focusin', function () {
if (!_this19.mouseEvent) {
_this19.background.classList.add('focus');
}
});
this.addEventListener('focusout', function () {
_this19.background.classList.remove('focus');
});
this.addEventListener('keydown', this.onKeyDown);
}
}, {
key: "attributeChangedCallback",
value: function attributeChangedCallback(attr, oldValue, newValue) {
if (isNaN(newValue) || newValue === undefined || newValue === null) return;
if (attr == 'min') {
this.min = +newValue;
this.setAttribute('aria-valuemin', this.min);
}
if (attr == 'max') {
this.max = +newValue;
this.setAttribute('aria-valuemax', this.max);
}
if (attr == 'value') {
this.update(+newValue);
}
if (attr == 'origin') {
this.origin = +newValue;
// this.update(this.value);
}
if (attr == 'step') {
if (newValue > 0) {
this.step = +newValue;
}
}
if (attr == 'ticks') {
this.ticks = newValue === '' ? true : newValue;
}
}
}, {
key: "onKeyDown",
value: function onKeyDown(event) {
this.changeValue = this.value;
var stopPropagation = false;
switch (event.keyCode) {
case keyCodes.left:
case keyCodes.down:
this.update(this.value - this.step);
stopPropagation = true;
break;
case keyCodes.right:
case keyCodes.up:
this.update(this.value + this.step);
stopPropagation = true;
break;
case keyCodes.pageUp:
this.update(this.value + this.step * 10);
stopPropagation = true;
break;
case keyCodes.pageDown:
this.update(this.value + this.step * 10);
stopPropagation = true;
break;
case keyCodes.home:
this.update(this.min);
stopPropagation = true;
break;
case keyCodes.end:
this.update(this.max);
stopPropagation = true;
break;
}
if (stopPropagation) {
this.background.classList.add('focus');
event.preventDefault();
event.stopPropagation();
if (this.changeValue !== this.value) this.dispatchChange();
}
}
}, {
key: "validateValueRange",
value: function validateValueRange(min, max, value) {
return Math.max(Math.min(max, value), min);
}
}, {
key: "quantizeValue",
value: function quantizeValue(value, step) {
return Math.round(value / step) * step;
}
}, {
key: "dragUpdate",
value: function dragUpdate() {
var bbox = this.background.getBoundingClientRect();
var x = event.x;
var width = bbox.width;
this.update(this.scale.invert(x / width));
}
}, {
key: "update",
value: function update(value) {
var v = value;
if (this.step !== 'any') {
v = this.quantizeValue(value, this.step);
}
v = this.validateValueRange(this.min, this.max, v);
if (this.connected) {
this.knob.style.left = this.scale(v) * 100 + '%';
this.trackFill.style.width = this.scale(this.min + Math.abs(v - this.origin)) * 100 + '%';
this.trackFill.style.left = this.scale(Math.min(v, this.origin)) * 100 + '%';
}
if (this.value !== v) {
this.value = v;
this.setAttribute('aria-valuenow', this.value);
this.dispatchInput();
}
}
// Dispatches only on a committed change (basically only on mouseup).
}, {
key: "dispatchChange",
value: function dispatchChange() {
var e = new Event('change');
this.dispatchEvent(e, {});
}
// Dispatches on each value change.
}, {
key: "dispatchInput",
value: function dispatchInput() {
var e = new Event('input');
this.dispatchEvent(e, {});
}
}, {
key: "renderTicks",
value: function renderTicks() {
var _this20 = this;
var ticksContainer = this.root.querySelector('.ticks');
if (this.ticks !== false) {
var tickData = [];
if (this.ticks > 0) {
tickData = this.scale.ticks(this.ticks);
} else if (this.step === 'any') {
tickData = this.scale.ticks();
} else {
tickData = range(this.min, this.max + 1e-6, this.step);
}
tickData.forEach(function (d) {
var tick = document.createElement('div');
tick.classList.add('tick');
tick.style.left = _this20.scale(d) * 100 + '%';
ticksContainer.appendChild(tick);
});
} else {
ticksContainer.style.display = 'none';
}
}
}], [{
key: "observedAttributes",
get: function get() {
return ['min', 'max', 'value', 'step', 'ticks', 'origin', 'tickValues', 'tickLabels'];
}
}]);
}(T$a(HTMLElement));
var logo = "\n";
var headerTemplate = "\n\n
\n");
// Copyright 2018 The Distill Template Authors
var T$b = Template('distill-header', headerTemplate, false);
var DistillHeader = /*#__PURE__*/function (_T$b) {
function DistillHeader() {
_classCallCheck(this, DistillHeader);
return _callSuper(this, DistillHeader, arguments);
}
_inherits(DistillHeader, _T$b);
return _createClass(DistillHeader);
}(T$b(HTMLElement)); // Copyright 2018 The Distill Template Authors
var styles$2 = "\n\n";
function appendixTemplate(frontMatter) {
var html = styles$2;
if (typeof frontMatter.githubUrl !== 'undefined') {
html += "\n
Updates and Corrections
\n
";
if (frontMatter.githubCompareUpdatesUrl) {
html += "View all changes to this article since it was first published.");
}
html += "\n If you see mistakes or want to suggest changes, please create an issue on GitHub.
\n ");
}
var journal = frontMatter.journal;
if (typeof journal !== 'undefined' && journal.title === 'Distill') {
html += "\n
Reuse
\n
Diagrams and text are licensed under Creative Commons Attribution CC-BY 4.0 with the source available on GitHub, unless noted otherwise. The figures that have been reused from other sources don\u2019t fall under this license and can be recognized by a note in their caption: \u201CFigure from \u2026\u201D.
\n ");
}
if (typeof frontMatter.publishedDate !== 'undefined') {
html += "\n
Citation
\n
For attribution in academic contexts, please cite this work as