choo-bundles
Version:
Bundle splitting with HTTP2 push support for Choo with choo-ssr
1,639 lines (1,429 loc) • 102 kB
JavaScript
require=(function(){function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s}return e})()({3:[function(require,module,exports){
const choo = require('choo')
const html = require('choo/html')
const ssr = require('choo-ssr')
const bundles = require('choo-bundles')
const home = require('./views/home')
const notfound = require('./views/notfound')
function main () {
const app = choo()
const page = view => (
ssr.html(
ssr.head(
ssr.state(),
bundles.assets()
),
ssr.body(view)
)
)
app.use(ssr())
app.use(bundles())
app.route('/', page(home))
app.route('/lazy', page(lazy))
app.route('/*', page(notfound))
app.mount('html')
async function lazy (state, emit) {
const view = await app.bundles.load('views/lazy.js')
return view(state, emit)
}
return app
}
if (typeof window !== 'undefined') {
main()
}
module.exports = main
},{"./views/home":4,"./views/notfound":6,"choo":16,"choo-bundles":1,"choo-ssr":8,"choo/html":15}],6:[function(require,module,exports){
const h = require('choo/html')
function notfound (state, emit) {
return h`
<div>Not found :(</div>
`
}
module.exports = notfound
},{"choo/html":15}],15:[function(require,module,exports){
var bel = require('bel')
function isPromise (elem) {
return elem && typeof elem.then === 'function'
}
function pWrap (array) {
var wrap = false
var result = array.map(function (elem) {
if (Array.isArray(elem)) { elem = pWrap(elem) }
if (isPromise(elem)) { wrap = true }
return elem
})
if (wrap) {
// NOTE: `Promise` will only be used if there is a promise within the tree, up to the dev to shim it
return Promise.all(result)
}
return result
}
function html (strings) {
var keys = Array.prototype.slice.call(arguments, 1)
var pKeys = pWrap(keys)
if (isPromise(pKeys)) {
return pKeys.then(function (rKeys) { return bel.apply(null, [strings].concat(rKeys)) })
}
return bel.apply(null, [strings].concat(pKeys))
}
module.exports = html
},{"bel":18}],18:[function(require,module,exports){
var hyperx = require('hyperx')
var appendChild = require('./appendChild')
var SVGNS = 'http://www.w3.org/2000/svg'
var XLINKNS = 'http://www.w3.org/1999/xlink'
var BOOL_PROPS = [
'autofocus', 'checked', 'defaultchecked', 'disabled', 'formnovalidate',
'indeterminate', 'readonly', 'required', 'selected', 'willvalidate'
]
var COMMENT_TAG = '!--'
var SVG_TAGS = [
'svg', 'altGlyph', 'altGlyphDef', 'altGlyphItem', 'animate', 'animateColor',
'animateMotion', 'animateTransform', 'circle', 'clipPath', 'color-profile',
'cursor', 'defs', 'desc', 'ellipse', 'feBlend', 'feColorMatrix',
'feComponentTransfer', 'feComposite', 'feConvolveMatrix',
'feDiffuseLighting', 'feDisplacementMap', 'feDistantLight', 'feFlood',
'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR', 'feGaussianBlur', 'feImage',
'feMerge', 'feMergeNode', 'feMorphology', 'feOffset', 'fePointLight',
'feSpecularLighting', 'feSpotLight', 'feTile', 'feTurbulence', 'filter',
'font', 'font-face', 'font-face-format', 'font-face-name', 'font-face-src',
'font-face-uri', 'foreignObject', 'g', 'glyph', 'glyphRef', 'hkern', 'image',
'line', 'linearGradient', 'marker', 'mask', 'metadata', 'missing-glyph',
'mpath', 'path', 'pattern', 'polygon', 'polyline', 'radialGradient', 'rect',
'set', 'stop', 'switch', 'symbol', 'text', 'textPath', 'title', 'tref',
'tspan', 'use', 'view', 'vkern'
]
function belCreateElement (tag, props, children) {
var el
// If an svg tag, it needs a namespace
if (SVG_TAGS.indexOf(tag) !== -1) {
props.namespace = SVGNS
}
// If we are using a namespace
var ns = false
if (props.namespace) {
ns = props.namespace
delete props.namespace
}
// Create the element
if (ns) {
el = document.createElementNS(ns, tag)
} else if (tag === COMMENT_TAG) {
return document.createComment(props.comment)
} else {
el = document.createElement(tag)
}
// Create the properties
for (var p in props) {
if (props.hasOwnProperty(p)) {
var key = p.toLowerCase()
var val = props[p]
// Normalize className
if (key === 'classname') {
key = 'class'
p = 'class'
}
// The for attribute gets transformed to htmlFor, but we just set as for
if (p === 'htmlFor') {
p = 'for'
}
// If a property is boolean, set itself to the key
if (BOOL_PROPS.indexOf(key) !== -1) {
if (val === 'true') val = key
else if (val === 'false') continue
}
// If a property prefers being set directly vs setAttribute
if (key.slice(0, 2) === 'on') {
el[p] = val
} else {
if (ns) {
if (p === 'xlink:href') {
el.setAttributeNS(XLINKNS, p, val)
} else if (/^xmlns($|:)/i.test(p)) {
// skip xmlns definitions
} else {
el.setAttributeNS(null, p, val)
}
} else {
el.setAttribute(p, val)
}
}
}
}
appendChild(el, children)
return el
}
module.exports = hyperx(belCreateElement, {comments: true})
module.exports.default = module.exports
module.exports.createElement = belCreateElement
},{"./appendChild":17,"hyperx":21}],17:[function(require,module,exports){
var trailingNewlineRegex = /\n[\s]+$/
var leadingNewlineRegex = /^\n[\s]+/
var trailingSpaceRegex = /[\s]+$/
var leadingSpaceRegex = /^[\s]+/
var multiSpaceRegex = /[\n\s]+/g
var TEXT_TAGS = [
'a', 'abbr', 'b', 'bdi', 'bdo', 'br', 'cite', 'data', 'dfn', 'em', 'i',
'kbd', 'mark', 'q', 'rp', 'rt', 'rtc', 'ruby', 's', 'amp', 'small', 'span',
'strong', 'sub', 'sup', 'time', 'u', 'var', 'wbr'
]
var VERBATIM_TAGS = [
'code', 'pre', 'textarea'
]
module.exports = function appendChild (el, childs) {
if (!Array.isArray(childs)) return
var nodeName = el.nodeName.toLowerCase()
var hadText = false
var value, leader
for (var i = 0, len = childs.length; i < len; i++) {
var node = childs[i]
if (Array.isArray(node)) {
appendChild(el, node)
continue
}
if (typeof node === 'number' ||
typeof node === 'boolean' ||
typeof node === 'function' ||
node instanceof Date ||
node instanceof RegExp) {
node = node.toString()
}
var lastChild = el.childNodes[el.childNodes.length - 1]
// Iterate over text nodes
if (typeof node === 'string') {
hadText = true
// If we already had text, append to the existing text
if (lastChild && lastChild.nodeName === '#text') {
lastChild.nodeValue += node
// We didn't have a text node yet, create one
} else {
node = document.createTextNode(node)
el.appendChild(node)
lastChild = node
}
// If this is the last of the child nodes, make sure we close it out
// right
if (i === len - 1) {
hadText = false
// Trim the child text nodes if the current node isn't a
// node where whitespace matters.
if (TEXT_TAGS.indexOf(nodeName) === -1 &&
VERBATIM_TAGS.indexOf(nodeName) === -1) {
value = lastChild.nodeValue
.replace(leadingNewlineRegex, '')
.replace(trailingSpaceRegex, '')
.replace(trailingNewlineRegex, '')
.replace(multiSpaceRegex, ' ')
if (value === '') {
el.removeChild(lastChild)
} else {
lastChild.nodeValue = value
}
} else if (VERBATIM_TAGS.indexOf(nodeName) === -1) {
// The very first node in the list should not have leading
// whitespace. Sibling text nodes should have whitespace if there
// was any.
leader = i === 0 ? '' : ' '
value = lastChild.nodeValue
.replace(leadingNewlineRegex, leader)
.replace(leadingSpaceRegex, ' ')
.replace(trailingSpaceRegex, '')
.replace(trailingNewlineRegex, '')
.replace(multiSpaceRegex, ' ')
lastChild.nodeValue = value
}
}
// Iterate over DOM nodes
} else if (node && node.nodeType) {
// If the last node was a text node, make sure it is properly closed out
if (hadText) {
hadText = false
// Trim the child text nodes if the current node isn't a
// text node or a code node
if (TEXT_TAGS.indexOf(nodeName) === -1 &&
VERBATIM_TAGS.indexOf(nodeName) === -1) {
value = lastChild.nodeValue
.replace(leadingNewlineRegex, '')
.replace(trailingNewlineRegex, '')
.replace(multiSpaceRegex, ' ')
// Remove empty text nodes, append otherwise
if (value === '') {
el.removeChild(lastChild)
} else {
lastChild.nodeValue = value
}
// Trim the child nodes if the current node is not a node
// where all whitespace must be preserved
} else if (VERBATIM_TAGS.indexOf(nodeName) === -1) {
value = lastChild.nodeValue
.replace(leadingSpaceRegex, ' ')
.replace(leadingNewlineRegex, '')
.replace(trailingNewlineRegex, '')
.replace(multiSpaceRegex, ' ')
lastChild.nodeValue = value
}
}
// Store the last nodename
var _nodeName = node.nodeName
if (_nodeName) nodeName = _nodeName.toLowerCase()
// Append the node to the DOM
el.appendChild(node)
}
}
}
},{}],21:[function(require,module,exports){
var attrToProp = require('hyperscript-attribute-to-property')
var VAR = 0, TEXT = 1, OPEN = 2, CLOSE = 3, ATTR = 4
var ATTR_KEY = 5, ATTR_KEY_W = 6
var ATTR_VALUE_W = 7, ATTR_VALUE = 8
var ATTR_VALUE_SQ = 9, ATTR_VALUE_DQ = 10
var ATTR_EQ = 11, ATTR_BREAK = 12
var COMMENT = 13
module.exports = function (h, opts) {
if (!opts) opts = {}
var concat = opts.concat || function (a, b) {
return String(a) + String(b)
}
if (opts.attrToProp !== false) {
h = attrToProp(h)
}
return function (strings) {
var state = TEXT, reg = ''
var arglen = arguments.length
var parts = []
for (var i = 0; i < strings.length; i++) {
if (i < arglen - 1) {
var arg = arguments[i+1]
var p = parse(strings[i])
var xstate = state
if (xstate === ATTR_VALUE_DQ) xstate = ATTR_VALUE
if (xstate === ATTR_VALUE_SQ) xstate = ATTR_VALUE
if (xstate === ATTR_VALUE_W) xstate = ATTR_VALUE
if (xstate === ATTR) xstate = ATTR_KEY
p.push([ VAR, xstate, arg ])
parts.push.apply(parts, p)
} else parts.push.apply(parts, parse(strings[i]))
}
var tree = [null,{},[]]
var stack = [[tree,-1]]
for (var i = 0; i < parts.length; i++) {
var cur = stack[stack.length-1][0]
var p = parts[i], s = p[0]
if (s === OPEN && /^\//.test(p[1])) {
var ix = stack[stack.length-1][1]
if (stack.length > 1) {
stack.pop()
stack[stack.length-1][0][2][ix] = h(
cur[0], cur[1], cur[2].length ? cur[2] : undefined
)
}
} else if (s === OPEN) {
var c = [p[1],{},[]]
cur[2].push(c)
stack.push([c,cur[2].length-1])
} else if (s === ATTR_KEY || (s === VAR && p[1] === ATTR_KEY)) {
var key = ''
var copyKey
for (; i < parts.length; i++) {
if (parts[i][0] === ATTR_KEY) {
key = concat(key, parts[i][1])
} else if (parts[i][0] === VAR && parts[i][1] === ATTR_KEY) {
if (typeof parts[i][2] === 'object' && !key) {
for (copyKey in parts[i][2]) {
if (parts[i][2].hasOwnProperty(copyKey) && !cur[1][copyKey]) {
cur[1][copyKey] = parts[i][2][copyKey]
}
}
} else {
key = concat(key, parts[i][2])
}
} else break
}
if (parts[i][0] === ATTR_EQ) i++
var j = i
for (; i < parts.length; i++) {
if (parts[i][0] === ATTR_VALUE || parts[i][0] === ATTR_KEY) {
if (!cur[1][key]) cur[1][key] = strfn(parts[i][1])
else parts[i][1]==="" || (cur[1][key] = concat(cur[1][key], parts[i][1]));
} else if (parts[i][0] === VAR
&& (parts[i][1] === ATTR_VALUE || parts[i][1] === ATTR_KEY)) {
if (!cur[1][key]) cur[1][key] = strfn(parts[i][2])
else parts[i][2]==="" || (cur[1][key] = concat(cur[1][key], parts[i][2]));
} else {
if (key.length && !cur[1][key] && i === j
&& (parts[i][0] === CLOSE || parts[i][0] === ATTR_BREAK)) {
// https://html.spec.whatwg.org/multipage/infrastructure.html#boolean-attributes
// empty string is falsy, not well behaved value in browser
cur[1][key] = key.toLowerCase()
}
if (parts[i][0] === CLOSE) {
i--
}
break
}
}
} else if (s === ATTR_KEY) {
cur[1][p[1]] = true
} else if (s === VAR && p[1] === ATTR_KEY) {
cur[1][p[2]] = true
} else if (s === CLOSE) {
if (selfClosing(cur[0]) && stack.length) {
var ix = stack[stack.length-1][1]
stack.pop()
stack[stack.length-1][0][2][ix] = h(
cur[0], cur[1], cur[2].length ? cur[2] : undefined
)
}
} else if (s === VAR && p[1] === TEXT) {
if (p[2] === undefined || p[2] === null) p[2] = ''
else if (!p[2]) p[2] = concat('', p[2])
if (Array.isArray(p[2][0])) {
cur[2].push.apply(cur[2], p[2])
} else {
cur[2].push(p[2])
}
} else if (s === TEXT) {
cur[2].push(p[1])
} else if (s === ATTR_EQ || s === ATTR_BREAK) {
// no-op
} else {
throw new Error('unhandled: ' + s)
}
}
if (tree[2].length > 1 && /^\s*$/.test(tree[2][0])) {
tree[2].shift()
}
if (tree[2].length > 2
|| (tree[2].length === 2 && /\S/.test(tree[2][1]))) {
throw new Error(
'multiple root elements must be wrapped in an enclosing tag'
)
}
if (Array.isArray(tree[2][0]) && typeof tree[2][0][0] === 'string'
&& Array.isArray(tree[2][0][2])) {
tree[2][0] = h(tree[2][0][0], tree[2][0][1], tree[2][0][2])
}
return tree[2][0]
function parse (str) {
var res = []
if (state === ATTR_VALUE_W) state = ATTR
for (var i = 0; i < str.length; i++) {
var c = str.charAt(i)
if (state === TEXT && c === '<') {
if (reg.length) res.push([TEXT, reg])
reg = ''
state = OPEN
} else if (c === '>' && !quot(state) && state !== COMMENT) {
if (state === OPEN) {
res.push([OPEN,reg])
} else if (state === ATTR_KEY) {
res.push([ATTR_KEY,reg])
} else if (state === ATTR_VALUE && reg.length) {
res.push([ATTR_VALUE,reg])
}
res.push([CLOSE])
reg = ''
state = TEXT
} else if (state === COMMENT && /-$/.test(reg) && c === '-') {
if (opts.comments) {
res.push([ATTR_VALUE,reg.substr(0, reg.length - 1)],[CLOSE])
}
reg = ''
state = TEXT
} else if (state === OPEN && /^!--$/.test(reg)) {
if (opts.comments) {
res.push([OPEN, reg],[ATTR_KEY,'comment'],[ATTR_EQ])
}
reg = c
state = COMMENT
} else if (state === TEXT || state === COMMENT) {
reg += c
} else if (state === OPEN && c === '/' && reg.length) {
// no-op, self closing tag without a space <br/>
} else if (state === OPEN && /\s/.test(c)) {
res.push([OPEN, reg])
reg = ''
state = ATTR
} else if (state === OPEN) {
reg += c
} else if (state === ATTR && /[^\s"'=/]/.test(c)) {
state = ATTR_KEY
reg = c
} else if (state === ATTR && /\s/.test(c)) {
if (reg.length) res.push([ATTR_KEY,reg])
res.push([ATTR_BREAK])
} else if (state === ATTR_KEY && /\s/.test(c)) {
res.push([ATTR_KEY,reg])
reg = ''
state = ATTR_KEY_W
} else if (state === ATTR_KEY && c === '=') {
res.push([ATTR_KEY,reg],[ATTR_EQ])
reg = ''
state = ATTR_VALUE_W
} else if (state === ATTR_KEY) {
reg += c
} else if ((state === ATTR_KEY_W || state === ATTR) && c === '=') {
res.push([ATTR_EQ])
state = ATTR_VALUE_W
} else if ((state === ATTR_KEY_W || state === ATTR) && !/\s/.test(c)) {
res.push([ATTR_BREAK])
if (/[\w-]/.test(c)) {
reg += c
state = ATTR_KEY
} else state = ATTR
} else if (state === ATTR_VALUE_W && c === '"') {
state = ATTR_VALUE_DQ
} else if (state === ATTR_VALUE_W && c === "'") {
state = ATTR_VALUE_SQ
} else if (state === ATTR_VALUE_DQ && c === '"') {
res.push([ATTR_VALUE,reg],[ATTR_BREAK])
reg = ''
state = ATTR
} else if (state === ATTR_VALUE_SQ && c === "'") {
res.push([ATTR_VALUE,reg],[ATTR_BREAK])
reg = ''
state = ATTR
} else if (state === ATTR_VALUE_W && !/\s/.test(c)) {
state = ATTR_VALUE
i--
} else if (state === ATTR_VALUE && /\s/.test(c)) {
res.push([ATTR_VALUE,reg],[ATTR_BREAK])
reg = ''
state = ATTR
} else if (state === ATTR_VALUE || state === ATTR_VALUE_SQ
|| state === ATTR_VALUE_DQ) {
reg += c
}
}
if (state === TEXT && reg.length) {
res.push([TEXT,reg])
reg = ''
} else if (state === ATTR_VALUE && reg.length) {
res.push([ATTR_VALUE,reg])
reg = ''
} else if (state === ATTR_VALUE_DQ && reg.length) {
res.push([ATTR_VALUE,reg])
reg = ''
} else if (state === ATTR_VALUE_SQ && reg.length) {
res.push([ATTR_VALUE,reg])
reg = ''
} else if (state === ATTR_KEY) {
res.push([ATTR_KEY,reg])
reg = ''
}
return res
}
}
function strfn (x) {
if (typeof x === 'function') return x
else if (typeof x === 'string') return x
else if (x && typeof x === 'object') return x
else return concat('', x)
}
}
function quot (state) {
return state === ATTR_VALUE_SQ || state === ATTR_VALUE_DQ
}
var hasOwn = Object.prototype.hasOwnProperty
function has (obj, key) { return hasOwn.call(obj, key) }
var closeRE = RegExp('^(' + [
'area', 'base', 'basefont', 'bgsound', 'br', 'col', 'command', 'embed',
'frame', 'hr', 'img', 'input', 'isindex', 'keygen', 'link', 'meta', 'param',
'source', 'track', 'wbr', '!--',
// SVG TAGS
'animate', 'animateTransform', 'circle', 'cursor', 'desc', 'ellipse',
'feBlend', 'feColorMatrix', 'feComposite',
'feConvolveMatrix', 'feDiffuseLighting', 'feDisplacementMap',
'feDistantLight', 'feFlood', 'feFuncA', 'feFuncB', 'feFuncG', 'feFuncR',
'feGaussianBlur', 'feImage', 'feMergeNode', 'feMorphology',
'feOffset', 'fePointLight', 'feSpecularLighting', 'feSpotLight', 'feTile',
'feTurbulence', 'font-face-format', 'font-face-name', 'font-face-uri',
'glyph', 'glyphRef', 'hkern', 'image', 'line', 'missing-glyph', 'mpath',
'path', 'polygon', 'polyline', 'rect', 'set', 'stop', 'tref', 'use', 'view',
'vkern'
].join('|') + ')(?:[\.#][a-zA-Z0-9\u007F-\uFFFF_:-]+)*$')
function selfClosing (tag) { return closeRE.test(tag) }
},{"hyperscript-attribute-to-property":20}],20:[function(require,module,exports){
module.exports = attributeToProperty
var transform = {
'class': 'className',
'for': 'htmlFor',
'http-equiv': 'httpEquiv'
}
function attributeToProperty (h) {
return function (tagName, attrs, children) {
for (var attr in attrs) {
if (attr in transform) {
attrs[transform[attr]] = attrs[attr]
delete attrs[attr]
}
}
return h(tagName, attrs, children)
}
}
},{}],4:[function(require,module,exports){
const h = require('choo/html')
function home (state, emit) {
return h`
<div>
<h1>Welcome!</h1>
<a href="/lazy">Load lazy view</a>
</div>
`
}
module.exports = home
},{"choo/html":15}],1:[function(require,module,exports){
var defer = require('p-defer')
var common = require('./common')
function bundles () {
return common.factory({
load: function (state, emitter, app) {
return function (name) {
var bundle = state.bundles.manifest[name]
if (!bundle) {
throw new Error('bundle ' + name + ' not found in manifest')
}
emitter.emit('bundles:load', name)
return load(bundle)
}
}
})
}
var _bundles = {}
function load (bundle) {
var url = bundle.js
if (_bundles[url]) {
return _bundles[url].promise
}
_bundles[url] = defer()
if (bundle.css) {
var css = common.stylesheet(bundle.id, bundle.css)
var links = document.head.getElementsByTagName('link')
var csssibelings = Array.prototype.filter.call(links, function (link) { return link.dataset.id > bundle.id })
document.head.insertBefore(css, csssibelings[0])
}
var js = common.script(bundle.id, bundle.js)
var scripts = document.head.getElementsByTagName('script')
var jssibelings = Array.prototype.filter.call(scripts, function (script) { return script.dataset.id > bundle.id })
document.head.insertBefore(js, jssibelings[0])
return _bundles[url].promise
}
function _loaded (url, result) {
if (!_bundles[url]) {
// might not have been requested yet, let's keep it in cache
_bundles[url] = defer()
}
_bundles[url].resolve(result)
}
module.exports = bundles
module.exports.assets = common.assets
module.exports._loaded = _loaded
},{"./common":2,"p-defer":10}],10:[function(require,module,exports){
'use strict';
module.exports = () => {
const ret = {};
ret.promise = new Promise((resolve, reject) => {
ret.resolve = resolve;
ret.reject = reject;
});
return ret;
};
},{}],2:[function(require,module,exports){
var h = require('choo/html')
var assert = require('assert')
function factory (impl) {
return function bundles (state, emitter, app) {
assert.equal(state.ssr, true, 'choo-ssr plugin is required')
state.bundles = state.bundles || {
loaded: [],
manifest: {}
}
emitter.on('bundles:load', name => {
var bundle = state.bundles.manifest[name]
if (!bundle) {
throw new Error(`bundle ${name} not found in manifest`)
}
if (!state.bundles.loaded.some(bundle => bundle.name === name)) {
state.bundles.loaded.push(Object.assign({}, bundle, { name }))
state.bundles.loaded.sort((a, b) => a.id - b.id)
}
})
app.bundles = {
load: impl.load(state, emitter, app)
}
}
}
function assets () {
return (state, emit) => {
var bundles = state.bundles.loaded
var js = bundles.map(bundle => script(bundle.id, bundle.js))
var css = bundles.filter(bundle => bundle.css).map(bundle => stylesheet(bundle.id, bundle.css))
return h`${[ ...js, ...css ]}`
}
}
function script (id, url) {
return h`<script data-id=${id} src=${url} defer></script>`
}
function stylesheet (id, url) {
return h`<link data-id=${id} href=${url} rel="stylesheet">`
}
module.exports.factory = factory
module.exports.assets = assets
module.exports.script = script
module.exports.stylesheet = stylesheet
},{"assert":7,"choo/html":15}],7:[function(require,module,exports){
(function (global){
'use strict';
// compare and isBuffer taken from https://github.com/feross/buffer/blob/680e9e5e488f22aac27599a57dc844a6315928dd/index.js
// original notice:
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <feross@feross.org> <http://feross.org>
* @license MIT
*/
function compare(a, b) {
if (a === b) {
return 0;
}
var x = a.length;
var y = b.length;
for (var i = 0, len = Math.min(x, y); i < len; ++i) {
if (a[i] !== b[i]) {
x = a[i];
y = b[i];
break;
}
}
if (x < y) {
return -1;
}
if (y < x) {
return 1;
}
return 0;
}
function isBuffer(b) {
if (global.Buffer && typeof global.Buffer.isBuffer === 'function') {
return global.Buffer.isBuffer(b);
}
return !!(b != null && b._isBuffer);
}
// based on node assert, original notice:
// http://wiki.commonjs.org/wiki/Unit_Testing/1.0
//
// THIS IS NOT TESTED NOR LIKELY TO WORK OUTSIDE V8!
//
// Originally from narwhal.js (http://narwhaljs.org)
// Copyright (c) 2009 Thomas Robinson <280north.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the 'Software'), to
// deal in the Software without restriction, including without limitation the
// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
var util = require('util/');
var hasOwn = Object.prototype.hasOwnProperty;
var pSlice = Array.prototype.slice;
var functionsHaveNames = (function () {
return function foo() {}.name === 'foo';
}());
function pToString (obj) {
return Object.prototype.toString.call(obj);
}
function isView(arrbuf) {
if (isBuffer(arrbuf)) {
return false;
}
if (typeof global.ArrayBuffer !== 'function') {
return false;
}
if (typeof ArrayBuffer.isView === 'function') {
return ArrayBuffer.isView(arrbuf);
}
if (!arrbuf) {
return false;
}
if (arrbuf instanceof DataView) {
return true;
}
if (arrbuf.buffer && arrbuf.buffer instanceof ArrayBuffer) {
return true;
}
return false;
}
// 1. The assert module provides functions that throw
// AssertionError's when particular conditions are not met. The
// assert module must conform to the following interface.
var assert = module.exports = ok;
// 2. The AssertionError is defined in assert.
// new assert.AssertionError({ message: message,
// actual: actual,
// expected: expected })
var regex = /\s*function\s+([^\(\s]*)\s*/;
// based on https://github.com/ljharb/function.prototype.name/blob/adeeeec8bfcc6068b187d7d9fb3d5bb1d3a30899/implementation.js
function getName(func) {
if (!util.isFunction(func)) {
return;
}
if (functionsHaveNames) {
return func.name;
}
var str = func.toString();
var match = str.match(regex);
return match && match[1];
}
assert.AssertionError = function AssertionError(options) {
this.name = 'AssertionError';
this.actual = options.actual;
this.expected = options.expected;
this.operator = options.operator;
if (options.message) {
this.message = options.message;
this.generatedMessage = false;
} else {
this.message = getMessage(this);
this.generatedMessage = true;
}
var stackStartFunction = options.stackStartFunction || fail;
if (Error.captureStackTrace) {
Error.captureStackTrace(this, stackStartFunction);
} else {
// non v8 browsers so we can have a stacktrace
var err = new Error();
if (err.stack) {
var out = err.stack;
// try to strip useless frames
var fn_name = getName(stackStartFunction);
var idx = out.indexOf('\n' + fn_name);
if (idx >= 0) {
// once we have located the function frame
// we need to strip out everything before it (and its line)
var next_line = out.indexOf('\n', idx + 1);
out = out.substring(next_line + 1);
}
this.stack = out;
}
}
};
// assert.AssertionError instanceof Error
util.inherits(assert.AssertionError, Error);
function truncate(s, n) {
if (typeof s === 'string') {
return s.length < n ? s : s.slice(0, n);
} else {
return s;
}
}
function inspect(something) {
if (functionsHaveNames || !util.isFunction(something)) {
return util.inspect(something);
}
var rawname = getName(something);
var name = rawname ? ': ' + rawname : '';
return '[Function' + name + ']';
}
function getMessage(self) {
return truncate(inspect(self.actual), 128) + ' ' +
self.operator + ' ' +
truncate(inspect(self.expected), 128);
}
// At present only the three keys mentioned above are used and
// understood by the spec. Implementations or sub modules can pass
// other keys to the AssertionError's constructor - they will be
// ignored.
// 3. All of the following functions must throw an AssertionError
// when a corresponding condition is not met, with a message that
// may be undefined if not provided. All assertion methods provide
// both the actual and expected values to the assertion error for
// display purposes.
function fail(actual, expected, message, operator, stackStartFunction) {
throw new assert.AssertionError({
message: message,
actual: actual,
expected: expected,
operator: operator,
stackStartFunction: stackStartFunction
});
}
// EXTENSION! allows for well behaved errors defined elsewhere.
assert.fail = fail;
// 4. Pure assertion tests whether a value is truthy, as determined
// by !!guard.
// assert.ok(guard, message_opt);
// This statement is equivalent to assert.equal(true, !!guard,
// message_opt);. To test strictly for the value true, use
// assert.strictEqual(true, guard, message_opt);.
function ok(value, message) {
if (!value) fail(value, true, message, '==', assert.ok);
}
assert.ok = ok;
// 5. The equality assertion tests shallow, coercive equality with
// ==.
// assert.equal(actual, expected, message_opt);
assert.equal = function equal(actual, expected, message) {
if (actual != expected) fail(actual, expected, message, '==', assert.equal);
};
// 6. The non-equality assertion tests for whether two objects are not equal
// with != assert.notEqual(actual, expected, message_opt);
assert.notEqual = function notEqual(actual, expected, message) {
if (actual == expected) {
fail(actual, expected, message, '!=', assert.notEqual);
}
};
// 7. The equivalence assertion tests a deep equality relation.
// assert.deepEqual(actual, expected, message_opt);
assert.deepEqual = function deepEqual(actual, expected, message) {
if (!_deepEqual(actual, expected, false)) {
fail(actual, expected, message, 'deepEqual', assert.deepEqual);
}
};
assert.deepStrictEqual = function deepStrictEqual(actual, expected, message) {
if (!_deepEqual(actual, expected, true)) {
fail(actual, expected, message, 'deepStrictEqual', assert.deepStrictEqual);
}
};
function _deepEqual(actual, expected, strict, memos) {
// 7.1. All identical values are equivalent, as determined by ===.
if (actual === expected) {
return true;
} else if (isBuffer(actual) && isBuffer(expected)) {
return compare(actual, expected) === 0;
// 7.2. If the expected value is a Date object, the actual value is
// equivalent if it is also a Date object that refers to the same time.
} else if (util.isDate(actual) && util.isDate(expected)) {
return actual.getTime() === expected.getTime();
// 7.3 If the expected value is a RegExp object, the actual value is
// equivalent if it is also a RegExp object with the same source and
// properties (`global`, `multiline`, `lastIndex`, `ignoreCase`).
} else if (util.isRegExp(actual) && util.isRegExp(expected)) {
return actual.source === expected.source &&
actual.global === expected.global &&
actual.multiline === expected.multiline &&
actual.lastIndex === expected.lastIndex &&
actual.ignoreCase === expected.ignoreCase;
// 7.4. Other pairs that do not both pass typeof value == 'object',
// equivalence is determined by ==.
} else if ((actual === null || typeof actual !== 'object') &&
(expected === null || typeof expected !== 'object')) {
return strict ? actual === expected : actual == expected;
// If both values are instances of typed arrays, wrap their underlying
// ArrayBuffers in a Buffer each to increase performance
// This optimization requires the arrays to have the same type as checked by
// Object.prototype.toString (aka pToString). Never perform binary
// comparisons for Float*Arrays, though, since e.g. +0 === -0 but their
// bit patterns are not identical.
} else if (isView(actual) && isView(expected) &&
pToString(actual) === pToString(expected) &&
!(actual instanceof Float32Array ||
actual instanceof Float64Array)) {
return compare(new Uint8Array(actual.buffer),
new Uint8Array(expected.buffer)) === 0;
// 7.5 For all other Object pairs, including Array objects, equivalence is
// determined by having the same number of owned properties (as verified
// with Object.prototype.hasOwnProperty.call), the same set of keys
// (although not necessarily the same order), equivalent values for every
// corresponding key, and an identical 'prototype' property. Note: this
// accounts for both named and indexed properties on Arrays.
} else if (isBuffer(actual) !== isBuffer(expected)) {
return false;
} else {
memos = memos || {actual: [], expected: []};
var actualIndex = memos.actual.indexOf(actual);
if (actualIndex !== -1) {
if (actualIndex === memos.expected.indexOf(expected)) {
return true;
}
}
memos.actual.push(actual);
memos.expected.push(expected);
return objEquiv(actual, expected, strict, memos);
}
}
function isArguments(object) {
return Object.prototype.toString.call(object) == '[object Arguments]';
}
function objEquiv(a, b, strict, actualVisitedObjects) {
if (a === null || a === undefined || b === null || b === undefined)
return false;
// if one is a primitive, the other must be same
if (util.isPrimitive(a) || util.isPrimitive(b))
return a === b;
if (strict && Object.getPrototypeOf(a) !== Object.getPrototypeOf(b))
return false;
var aIsArgs = isArguments(a);
var bIsArgs = isArguments(b);
if ((aIsArgs && !bIsArgs) || (!aIsArgs && bIsArgs))
return false;
if (aIsArgs) {
a = pSlice.call(a);
b = pSlice.call(b);
return _deepEqual(a, b, strict);
}
var ka = objectKeys(a);
var kb = objectKeys(b);
var key, i;
// having the same number of owned properties (keys incorporates
// hasOwnProperty)
if (ka.length !== kb.length)
return false;
//the same set of keys (although not necessarily the same order),
ka.sort();
kb.sort();
//~~~cheap key test
for (i = ka.length - 1; i >= 0; i--) {
if (ka[i] !== kb[i])
return false;
}
//equivalent values for every corresponding key, and
//~~~possibly expensive deep test
for (i = ka.length - 1; i >= 0; i--) {
key = ka[i];
if (!_deepEqual(a[key], b[key], strict, actualVisitedObjects))
return false;
}
return true;
}
// 8. The non-equivalence assertion tests for any deep inequality.
// assert.notDeepEqual(actual, expected, message_opt);
assert.notDeepEqual = function notDeepEqual(actual, expected, message) {
if (_deepEqual(actual, expected, false)) {
fail(actual, expected, message, 'notDeepEqual', assert.notDeepEqual);
}
};
assert.notDeepStrictEqual = notDeepStrictEqual;
function notDeepStrictEqual(actual, expected, message) {
if (_deepEqual(actual, expected, true)) {
fail(actual, expected, message, 'notDeepStrictEqual', notDeepStrictEqual);
}
}
// 9. The strict equality assertion tests strict equality, as determined by ===.
// assert.strictEqual(actual, expected, message_opt);
assert.strictEqual = function strictEqual(actual, expected, message) {
if (actual !== expected) {
fail(actual, expected, message, '===', assert.strictEqual);
}
};
// 10. The strict non-equality assertion tests for strict inequality, as
// determined by !==. assert.notStrictEqual(actual, expected, message_opt);
assert.notStrictEqual = function notStrictEqual(actual, expected, message) {
if (actual === expected) {
fail(actual, expected, message, '!==', assert.notStrictEqual);
}
};
function expectedException(actual, expected) {
if (!actual || !expected) {
return false;
}
if (Object.prototype.toString.call(expected) == '[object RegExp]') {
return expected.test(actual);
}
try {
if (actual instanceof expected) {
return true;
}
} catch (e) {
// Ignore. The instanceof check doesn't work for arrow functions.
}
if (Error.isPrototypeOf(expected)) {
return false;
}
return expected.call({}, actual) === true;
}
function _tryBlock(block) {
var error;
try {
block();
} catch (e) {
error = e;
}
return error;
}
function _throws(shouldThrow, block, expected, message) {
var actual;
if (typeof block !== 'function') {
throw new TypeError('"block" argument must be a function');
}
if (typeof expected === 'string') {
message = expected;
expected = null;
}
actual = _tryBlock(block);
message = (expected && expected.name ? ' (' + expected.name + ').' : '.') +
(message ? ' ' + message : '.');
if (shouldThrow && !actual) {
fail(actual, expected, 'Missing expected exception' + message);
}
var userProvidedMessage = typeof message === 'string';
var isUnwantedException = !shouldThrow && util.isError(actual);
var isUnexpectedException = !shouldThrow && actual && !expected;
if ((isUnwantedException &&
userProvidedMessage &&
expectedException(actual, expected)) ||
isUnexpectedException) {
fail(actual, expected, 'Got unwanted exception' + message);
}
if ((shouldThrow && actual && expected &&
!expectedException(actual, expected)) || (!shouldThrow && actual)) {
throw actual;
}
}
// 11. Expected to throw an error:
// assert.throws(block, Error_opt, message_opt);
assert.throws = function(block, /*optional*/error, /*optional*/message) {
_throws(true, block, error, message);
};
// EXTENSION! This is annoying to write outside this module.
assert.doesNotThrow = function(block, /*optional*/error, /*optional*/message) {
_throws(false, block, error, message);
};
assert.ifError = function(err) { if (err) throw err; };
var objectKeys = Object.keys || function (obj) {
var keys = [];
for (var key in obj) {
if (hasOwn.call(obj, key)) keys.push(key);
}
return keys;
};
}).call(this,typeof global !== "undefined" ? global : typeof self !== "undefined" ? self : typeof window !== "undefined" ? window : {})
},{"util/":14}],14:[function(require,module,exports){
(function (process,global){
// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
var formatRegExp = /%[sdj%]/g;
exports.format = function(f) {
if (!isString(f)) {
var objects = [];
for (var i = 0; i < arguments.length; i++) {
objects.push(inspect(arguments[i]));
}
return objects.join(' ');
}
var i = 1;
var args = arguments;
var len = args.length;
var str = String(f).replace(formatRegExp, function(x) {
if (x === '%%') return '%';
if (i >= len) return x;
switch (x) {
case '%s': return String(args[i++]);
case '%d': return Number(args[i++]);
case '%j':
try {
return JSON.stringify(args[i++]);
} catch (_) {
return '[Circular]';
}
default:
return x;
}
});
for (var x = args[i]; i < len; x = args[++i]) {
if (isNull(x) || !isObject(x)) {
str += ' ' + x;
} else {
str += ' ' + inspect(x);
}
}
return str;
};
// Mark that a method should not be used.
// Returns a modified function which warns once by default.
// If --no-deprecation is set, then it is a no-op.
exports.deprecate = function(fn, msg) {
// Allow for deprecating things in the process of starting up.
if (isUndefined(global.process)) {
return function() {
return exports.deprecate(fn, msg).apply(this, arguments);
};
}
if (process.noDeprecation === true) {
return fn;
}
var warned = false;
function deprecated() {
if (!warned) {
if (process.throwDeprecation) {
throw new Error(msg);
} else if (process.traceDeprecation) {
console.trace(msg);
} else {
console.error(msg);
}
warned = true;
}
return fn.apply(this, arguments);
}
return deprecated;
};
var debugs = {};
var debugEnviron;
exports.debuglog = function(set) {
if (isUndefined(debugEnviron))
debugEnviron = process.env.NODE_DEBUG || '';
set = set.toUpperCase();
if (!debugs[set]) {
if (new RegExp('\\b' + set + '\\b', 'i').test(debugEnviron)) {
var pid = process.pid;
debugs[set] = function() {
var msg = exports.format.apply(exports, arguments);
console.error('%s %d: %s', set, pid, msg);
};
} else {
debugs[set] = function() {};
}
}
return debugs[set];
};
/**
* Echos the value of a value. Trys to print the value out
* in the best way possible given the different types.
*
* @param {Object} obj The object to print out.
* @param {Object} opts Optional options object that alters the output.
*/
/* legacy: obj, showHidden, depth, colors*/
function inspect(obj, opts) {
// default options
var ctx = {
seen: [],
stylize: stylizeNoColor
};
// legacy...
if (arguments.length >= 3) ctx.depth = arguments[2];
if (arguments.length >= 4) ctx.colors = arguments[3];
if (isBoolean(opts)) {
// legacy...
ctx.showHidden = opts;
} else if (opts) {
// got an "options" object
exports._extend(ctx, opts);
}
// set default options
if (isUndefined(ctx.showHidden)) ctx.showHidden = false;
if (isUndefined(ctx.depth)) ctx.depth = 2;
if (isUndefined(ctx.colors)) ctx.colors = false;
if (isUndefined(ctx.customInspect)) ctx.customInspect = true;
if (ctx.colors) ctx.stylize = stylizeWithColor;
return formatValue(ctx, obj, ctx.depth);
}
exports.inspect = inspect;
// http://en.wikipedia.org/wiki/ANSI_escape_code#graphics
inspect.colors = {
'bold' : [1, 22],
'italic' : [3, 23],
'underline' : [4, 24],
'inverse' : [7, 27],
'white' : [37, 39],
'grey' : [90, 39],
'black' : [30, 39],
'blue' : [34, 39],
'cyan' : [36, 39],
'green' : [32, 39],
'magenta' : [35, 39],
'red' : [31, 39],
'yellow' : [33, 39]
};
// Don't use 'blue' not visible on cmd.exe
inspect.styles = {
'special': 'cyan',
'number': 'yellow',
'boolean': 'yellow',
'undefined': 'grey',
'null': 'bold',
'string': 'green',
'date': 'magenta',
// "name": intentionally not styling
'regexp': 'red'
};
function stylizeWithColor(str, styleType) {
var style = inspect.styles[styleType];
if (style) {
return '\u001b[' + inspect.colors[style][0] + 'm' + str +
'\u001b[' + inspect.colors[style][1] + 'm';
} else {
return str;
}
}
function stylizeNoColor(str, styleType) {
return str;
}
function arrayToHash(array) {
var hash = {};
array.forEach(function(val, idx) {
hash[val] = true;
});
return hash;
}
function formatValue(ctx, value, recurseTimes) {
// Provide a hook for user-specified inspect functions.
// Check that value is an object with an inspect function on it
if (ctx.customInspect &&
value &&
isFunction(value.inspect) &&
// Filter out the util module, it's inspect function is special
value.inspect !== exports.inspect &&
// Also filter out any prototype objects using the circular check.
!(value.constructor && value.constructor.prototype === value)) {
var ret = value.inspect(recurseTimes, ctx);
if (!isString(ret)) {
ret = formatValue(ctx, ret, recurseTimes);
}
return ret;
}
// Primitive types cannot have properties
var primitive = formatPrimitive(ctx, value);
if (primitive) {
return primitive;
}
// Look up the keys of the object.
var keys = Object.keys(value);
var visibleKeys = arrayToHash(keys);
if (ctx.showHidden) {
keys = Object.getOwnPropertyNames(value);
}
// IE doesn't make error fields non-enumerable
// http://msdn.microsoft.com/en-us/library/ie/dww52sbt(v=vs.94).aspx
if (isError(value)
&& (keys.indexOf('message') >= 0 || keys.indexOf('description') >= 0)) {
return formatError(value);
}
// Some type of object without properties can be shortcutted.
if (keys.length === 0) {
if (isFunction(value)) {
var name = value.name ? ': ' + value.name : '';
return ctx.stylize('[Function' + name + ']', 'special');
}
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
}
if (isDate(value)) {
return ctx.stylize(Date.prototype.toString.call(value), 'date');
}
if (isError(value)) {
return formatError(value);
}
}
var base = '', array = false, braces = ['{', '}'];
// Make Array say that they are Array
if (isArray(value)) {
array = true;
braces = ['[', ']'];
}
// Make functions say that they are functions
if (isFunction(value)) {
var n = value.name ? ': ' + value.name : '';
base = ' [Function' + n + ']';
}
// Make RegExps say that they are RegExps
if (isRegExp(value)) {
base = ' ' + RegExp.prototype.toString.call(value);
}
// Make dates with properties first say the date
if (isDate(value)) {
base = ' ' + Date.prototype.toUTCString.call(value);
}
// Make error with message first say the error
if (isError(value)) {
base = ' ' + formatError(value);
}
if (keys.length === 0 && (!array || value.length == 0)) {
return braces[0] + base + braces[1];
}
if (recurseTimes < 0) {
if (isRegExp(value)) {
return ctx.stylize(RegExp.prototype.toString.call(value), 'regexp');
} else {
return ctx.stylize('[Object]', 'special');
}
}
ctx.seen.push(value);
var output;
if (array) {
output = formatArray(ctx, value, recurseTimes, visibleKeys, keys);
} else {
output = keys.map(function(key) {
return formatProperty(ctx, value, recurseTimes, visibleKeys, key, array);
});
}
ctx.seen.pop();
return reduceToSingleString(output, base, braces);
}
function formatPrimitive(ctx, value) {
if (isUndefined(value))
return ctx.stylize('undefined', 'undefined');
if (isString(value)) {
var simple = '\'' + JSON.stringify(value).replace(/^"|"$/g, '')
.replace(/'/g, "\\'")
.replace(/\\"/g, '"') + '\'';
return ctx.stylize(simple, 'string');
}
if (isNumber(value))
return ctx.stylize('' + value, 'number');
if (isBoolean(value))
return ctx.stylize('' + value, 'boolean');
// For some reason typeof null is "object", so special case here.
if (isNull(value))
return ctx.stylize('null', 'null');
}
function formatError(value) {
return '[' + Error.prototype.toString.call(value) + ']';
}
function formatArray(ctx, value, recurseTimes, visibleKeys, keys) {
var output = [];
for (var i = 0, l = value.length; i < l; ++i) {
if (hasOwnProperty(value, String(i))) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
String(i), true));
} else {
output.push('');
}
}
keys.forEach(function(key) {
if (!key.match(/^\d+$/)) {
output.push(formatProperty(ctx, value, recurseTimes, visibleKeys,
key, true));
}
});
return output;
}
function formatProperty(ctx, value, recurseTimes, visibleKeys, key, array) {
var name, str, desc;
desc = Object.getOwnPropertyDescriptor(value, key) || { value: value[key] };
if (desc.get) {
if (desc.set) {
str = ctx.stylize('[Getter/Setter]', 'special');
} else {
str = ctx.stylize('[Getter]', 'special');
}
} else {
if (desc.set) {