thirdparty/postcss-safe-parser.js
/**!
* PostCSS Safe Parser version 6.0.0
* (browserified with Browserify version 17.0.0)
*
* The MIT License (MIT)
*
* Copyright 2013 Andrey Sitnik <andrey@sitnik.ru>
*
* 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.
*/
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.postcssSafeParser = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
'use strict'
exports.byteLength = byteLength
exports.toByteArray = toByteArray
exports.fromByteArray = fromByteArray
var lookup = []
var revLookup = []
var Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array
var code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
for (var i = 0, len = code.length; i < len; ++i) {
lookup[i] = code[i]
revLookup[code.charCodeAt(i)] = i
}
// Support decoding URL-safe base64 strings, as Node.js does.
// See: https://en.wikipedia.org/wiki/Base64#URL_applications
revLookup['-'.charCodeAt(0)] = 62
revLookup['_'.charCodeAt(0)] = 63
function getLens (b64) {
var len = b64.length
if (len % 4 > 0) {
throw new Error('Invalid string. Length must be a multiple of 4')
}
// Trim off extra bytes after placeholder bytes are found
// See: https://github.com/beatgammit/base64-js/issues/42
var validLen = b64.indexOf('=')
if (validLen === -1) validLen = len
var placeHoldersLen = validLen === len
? 0
: 4 - (validLen % 4)
return [validLen, placeHoldersLen]
}
// base64 is 4/3 + up to two characters of the original data
function byteLength (b64) {
var lens = getLens(b64)
var validLen = lens[0]
var placeHoldersLen = lens[1]
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}
function _byteLength (b64, validLen, placeHoldersLen) {
return ((validLen + placeHoldersLen) * 3 / 4) - placeHoldersLen
}
function toByteArray (b64) {
var tmp
var lens = getLens(b64)
var validLen = lens[0]
var placeHoldersLen = lens[1]
var arr = new Arr(_byteLength(b64, validLen, placeHoldersLen))
var curByte = 0
// if there are placeholders, only get up to the last complete 4 chars
var len = placeHoldersLen > 0
? validLen - 4
: validLen
var i
for (i = 0; i < len; i += 4) {
tmp =
(revLookup[b64.charCodeAt(i)] << 18) |
(revLookup[b64.charCodeAt(i + 1)] << 12) |
(revLookup[b64.charCodeAt(i + 2)] << 6) |
revLookup[b64.charCodeAt(i + 3)]
arr[curByte++] = (tmp >> 16) & 0xFF
arr[curByte++] = (tmp >> 8) & 0xFF
arr[curByte++] = tmp & 0xFF
}
if (placeHoldersLen === 2) {
tmp =
(revLookup[b64.charCodeAt(i)] << 2) |
(revLookup[b64.charCodeAt(i + 1)] >> 4)
arr[curByte++] = tmp & 0xFF
}
if (placeHoldersLen === 1) {
tmp =
(revLookup[b64.charCodeAt(i)] << 10) |
(revLookup[b64.charCodeAt(i + 1)] << 4) |
(revLookup[b64.charCodeAt(i + 2)] >> 2)
arr[curByte++] = (tmp >> 8) & 0xFF
arr[curByte++] = tmp & 0xFF
}
return arr
}
function tripletToBase64 (num) {
return lookup[num >> 18 & 0x3F] +
lookup[num >> 12 & 0x3F] +
lookup[num >> 6 & 0x3F] +
lookup[num & 0x3F]
}
function encodeChunk (uint8, start, end) {
var tmp
var output = []
for (var i = start; i < end; i += 3) {
tmp =
((uint8[i] << 16) & 0xFF0000) +
((uint8[i + 1] << 8) & 0xFF00) +
(uint8[i + 2] & 0xFF)
output.push(tripletToBase64(tmp))
}
return output.join('')
}
function fromByteArray (uint8) {
var tmp
var len = uint8.length
var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes
var parts = []
var maxChunkLength = 16383 // must be multiple of 3
// go through the array every three bytes, we'll deal with trailing stuff later
for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {
parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))
}
// pad the end with zeros, but make sure to not forget the extra bytes
if (extraBytes === 1) {
tmp = uint8[len - 1]
parts.push(
lookup[tmp >> 2] +
lookup[(tmp << 4) & 0x3F] +
'=='
)
} else if (extraBytes === 2) {
tmp = (uint8[len - 2] << 8) + uint8[len - 1]
parts.push(
lookup[tmp >> 10] +
lookup[(tmp >> 4) & 0x3F] +
lookup[(tmp << 2) & 0x3F] +
'='
)
}
return parts.join('')
}
},{}],2:[function(require,module,exports){
},{}],3:[function(require,module,exports){
(function (Buffer){(function (){
/*!
* The buffer module from node.js, for the browser.
*
* @author Feross Aboukhadijeh <https://feross.org>
* @license MIT
*/
/* eslint-disable no-proto */
'use strict'
var base64 = require('base64-js')
var ieee754 = require('ieee754')
exports.Buffer = Buffer
exports.SlowBuffer = SlowBuffer
exports.INSPECT_MAX_BYTES = 50
var K_MAX_LENGTH = 0x7fffffff
exports.kMaxLength = K_MAX_LENGTH
/**
* If `Buffer.TYPED_ARRAY_SUPPORT`:
* === true Use Uint8Array implementation (fastest)
* === false Print warning and recommend using `buffer` v4.x which has an Object
* implementation (most compatible, even IE6)
*
* Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,
* Opera 11.6+, iOS 4.2+.
*
* We report that the browser does not support typed arrays if the are not subclassable
* using __proto__. Firefox 4-29 lacks support for adding new properties to `Uint8Array`
* (See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438). IE 10 lacks support
* for __proto__ and has a buggy typed array implementation.
*/
Buffer.TYPED_ARRAY_SUPPORT = typedArraySupport()
if (!Buffer.TYPED_ARRAY_SUPPORT && typeof console !== 'undefined' &&
typeof console.error === 'function') {
console.error(
'This browser lacks typed array (Uint8Array) support which is required by ' +
'`buffer` v5.x. Use `buffer` v4.x if you require old browser support.'
)
}
function typedArraySupport () {
// Can typed array instances can be augmented?
try {
var arr = new Uint8Array(1)
arr.__proto__ = { __proto__: Uint8Array.prototype, foo: function () { return 42 } }
return arr.foo() === 42
} catch (e) {
return false
}
}
Object.defineProperty(Buffer.prototype, 'parent', {
enumerable: true,
get: function () {
if (!Buffer.isBuffer(this)) return undefined
return this.buffer
}
})
Object.defineProperty(Buffer.prototype, 'offset', {
enumerable: true,
get: function () {
if (!Buffer.isBuffer(this)) return undefined
return this.byteOffset
}
})
function createBuffer (length) {
if (length > K_MAX_LENGTH) {
throw new RangeError('The value "' + length + '" is invalid for option "size"')
}
// Return an augmented `Uint8Array` instance
var buf = new Uint8Array(length)
buf.__proto__ = Buffer.prototype
return buf
}
/**
* The Buffer constructor returns instances of `Uint8Array` that have their
* prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of
* `Uint8Array`, so the returned instances will have all the node `Buffer` methods
* and the `Uint8Array` methods. Square bracket notation works as expected -- it
* returns a single octet.
*
* The `Uint8Array` prototype remains unmodified.
*/
function Buffer (arg, encodingOrOffset, length) {
// Common case.
if (typeof arg === 'number') {
if (typeof encodingOrOffset === 'string') {
throw new TypeError(
'The "string" argument must be of type string. Received type number'
)
}
return allocUnsafe(arg)
}
return from(arg, encodingOrOffset, length)
}
// Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97
if (typeof Symbol !== 'undefined' && Symbol.species != null &&
Buffer[Symbol.species] === Buffer) {
Object.defineProperty(Buffer, Symbol.species, {
value: null,
configurable: true,
enumerable: false,
writable: false
})
}
Buffer.poolSize = 8192 // not used by this implementation
function from (value, encodingOrOffset, length) {
if (typeof value === 'string') {
return fromString(value, encodingOrOffset)
}
if (ArrayBuffer.isView(value)) {
return fromArrayLike(value)
}
if (value == null) {
throw TypeError(
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
'or Array-like Object. Received type ' + (typeof value)
)
}
if (isInstance(value, ArrayBuffer) ||
(value && isInstance(value.buffer, ArrayBuffer))) {
return fromArrayBuffer(value, encodingOrOffset, length)
}
if (typeof value === 'number') {
throw new TypeError(
'The "value" argument must not be of type number. Received type number'
)
}
var valueOf = value.valueOf && value.valueOf()
if (valueOf != null && valueOf !== value) {
return Buffer.from(valueOf, encodingOrOffset, length)
}
var b = fromObject(value)
if (b) return b
if (typeof Symbol !== 'undefined' && Symbol.toPrimitive != null &&
typeof value[Symbol.toPrimitive] === 'function') {
return Buffer.from(
value[Symbol.toPrimitive]('string'), encodingOrOffset, length
)
}
throw new TypeError(
'The first argument must be one of type string, Buffer, ArrayBuffer, Array, ' +
'or Array-like Object. Received type ' + (typeof value)
)
}
/**
* Functionally equivalent to Buffer(arg, encoding) but throws a TypeError
* if value is a number.
* Buffer.from(str[, encoding])
* Buffer.from(array)
* Buffer.from(buffer)
* Buffer.from(arrayBuffer[, byteOffset[, length]])
**/
Buffer.from = function (value, encodingOrOffset, length) {
return from(value, encodingOrOffset, length)
}
// Note: Change prototype *after* Buffer.from is defined to workaround Chrome bug:
// https://github.com/feross/buffer/pull/148
Buffer.prototype.__proto__ = Uint8Array.prototype
Buffer.__proto__ = Uint8Array
function assertSize (size) {
if (typeof size !== 'number') {
throw new TypeError('"size" argument must be of type number')
} else if (size < 0) {
throw new RangeError('The value "' + size + '" is invalid for option "size"')
}
}
function alloc (size, fill, encoding) {
assertSize(size)
if (size <= 0) {
return createBuffer(size)
}
if (fill !== undefined) {
// Only pay attention to encoding if it's a string. This
// prevents accidentally sending in a number that would
// be interpretted as a start offset.
return typeof encoding === 'string'
? createBuffer(size).fill(fill, encoding)
: createBuffer(size).fill(fill)
}
return createBuffer(size)
}
/**
* Creates a new filled Buffer instance.
* alloc(size[, fill[, encoding]])
**/
Buffer.alloc = function (size, fill, encoding) {
return alloc(size, fill, encoding)
}
function allocUnsafe (size) {
assertSize(size)
return createBuffer(size < 0 ? 0 : checked(size) | 0)
}
/**
* Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.
* */
Buffer.allocUnsafe = function (size) {
return allocUnsafe(size)
}
/**
* Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.
*/
Buffer.allocUnsafeSlow = function (size) {
return allocUnsafe(size)
}
function fromString (string, encoding) {
if (typeof encoding !== 'string' || encoding === '') {
encoding = 'utf8'
}
if (!Buffer.isEncoding(encoding)) {
throw new TypeError('Unknown encoding: ' + encoding)
}
var length = byteLength(string, encoding) | 0
var buf = createBuffer(length)
var actual = buf.write(string, encoding)
if (actual !== length) {
// Writing a hex string, for example, that contains invalid characters will
// cause everything after the first invalid character to be ignored. (e.g.
// 'abxxcd' will be treated as 'ab')
buf = buf.slice(0, actual)
}
return buf
}
function fromArrayLike (array) {
var length = array.length < 0 ? 0 : checked(array.length) | 0
var buf = createBuffer(length)
for (var i = 0; i < length; i += 1) {
buf[i] = array[i] & 255
}
return buf
}
function fromArrayBuffer (array, byteOffset, length) {
if (byteOffset < 0 || array.byteLength < byteOffset) {
throw new RangeError('"offset" is outside of buffer bounds')
}
if (array.byteLength < byteOffset + (length || 0)) {
throw new RangeError('"length" is outside of buffer bounds')
}
var buf
if (byteOffset === undefined && length === undefined) {
buf = new Uint8Array(array)
} else if (length === undefined) {
buf = new Uint8Array(array, byteOffset)
} else {
buf = new Uint8Array(array, byteOffset, length)
}
// Return an augmented `Uint8Array` instance
buf.__proto__ = Buffer.prototype
return buf
}
function fromObject (obj) {
if (Buffer.isBuffer(obj)) {
var len = checked(obj.length) | 0
var buf = createBuffer(len)
if (buf.length === 0) {
return buf
}
obj.copy(buf, 0, 0, len)
return buf
}
if (obj.length !== undefined) {
if (typeof obj.length !== 'number' || numberIsNaN(obj.length)) {
return createBuffer(0)
}
return fromArrayLike(obj)
}
if (obj.type === 'Buffer' && Array.isArray(obj.data)) {
return fromArrayLike(obj.data)
}
}
function checked (length) {
// Note: cannot use `length < K_MAX_LENGTH` here because that fails when
// length is NaN (which is otherwise coerced to zero.)
if (length >= K_MAX_LENGTH) {
throw new RangeError('Attempt to allocate Buffer larger than maximum ' +
'size: 0x' + K_MAX_LENGTH.toString(16) + ' bytes')
}
return length | 0
}
function SlowBuffer (length) {
if (+length != length) { // eslint-disable-line eqeqeq
length = 0
}
return Buffer.alloc(+length)
}
Buffer.isBuffer = function isBuffer (b) {
return b != null && b._isBuffer === true &&
b !== Buffer.prototype // so Buffer.isBuffer(Buffer.prototype) will be false
}
Buffer.compare = function compare (a, b) {
if (isInstance(a, Uint8Array)) a = Buffer.from(a, a.offset, a.byteLength)
if (isInstance(b, Uint8Array)) b = Buffer.from(b, b.offset, b.byteLength)
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError(
'The "buf1", "buf2" arguments must be one of type Buffer or Uint8Array'
)
}
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
}
Buffer.isEncoding = function isEncoding (encoding) {
switch (String(encoding).toLowerCase()) {
case 'hex':
case 'utf8':
case 'utf-8':
case 'ascii':
case 'latin1':
case 'binary':
case 'base64':
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return true
default:
return false
}
}
Buffer.concat = function concat (list, length) {
if (!Array.isArray(list)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
if (list.length === 0) {
return Buffer.alloc(0)
}
var i
if (length === undefined) {
length = 0
for (i = 0; i < list.length; ++i) {
length += list[i].length
}
}
var buffer = Buffer.allocUnsafe(length)
var pos = 0
for (i = 0; i < list.length; ++i) {
var buf = list[i]
if (isInstance(buf, Uint8Array)) {
buf = Buffer.from(buf)
}
if (!Buffer.isBuffer(buf)) {
throw new TypeError('"list" argument must be an Array of Buffers')
}
buf.copy(buffer, pos)
pos += buf.length
}
return buffer
}
function byteLength (string, encoding) {
if (Buffer.isBuffer(string)) {
return string.length
}
if (ArrayBuffer.isView(string) || isInstance(string, ArrayBuffer)) {
return string.byteLength
}
if (typeof string !== 'string') {
throw new TypeError(
'The "string" argument must be one of type string, Buffer, or ArrayBuffer. ' +
'Received type ' + typeof string
)
}
var len = string.length
var mustMatch = (arguments.length > 2 && arguments[2] === true)
if (!mustMatch && len === 0) return 0
// Use a for loop to avoid recursion
var loweredCase = false
for (;;) {
switch (encoding) {
case 'ascii':
case 'latin1':
case 'binary':
return len
case 'utf8':
case 'utf-8':
return utf8ToBytes(string).length
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return len * 2
case 'hex':
return len >>> 1
case 'base64':
return base64ToBytes(string).length
default:
if (loweredCase) {
return mustMatch ? -1 : utf8ToBytes(string).length // assume utf8
}
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.byteLength = byteLength
function slowToString (encoding, start, end) {
var loweredCase = false
// No need to verify that "this.length <= MAX_UINT32" since it's a read-only
// property of a typed array.
// This behaves neither like String nor Uint8Array in that we set start/end
// to their upper/lower bounds if the value passed is out of range.
// undefined is handled specially as per ECMA-262 6th Edition,
// Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.
if (start === undefined || start < 0) {
start = 0
}
// Return early if start > this.length. Done here to prevent potential uint32
// coercion fail below.
if (start > this.length) {
return ''
}
if (end === undefined || end > this.length) {
end = this.length
}
if (end <= 0) {
return ''
}
// Force coersion to uint32. This will also coerce falsey/NaN values to 0.
end >>>= 0
start >>>= 0
if (end <= start) {
return ''
}
if (!encoding) encoding = 'utf8'
while (true) {
switch (encoding) {
case 'hex':
return hexSlice(this, start, end)
case 'utf8':
case 'utf-8':
return utf8Slice(this, start, end)
case 'ascii':
return asciiSlice(this, start, end)
case 'latin1':
case 'binary':
return latin1Slice(this, start, end)
case 'base64':
return base64Slice(this, start, end)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return utf16leSlice(this, start, end)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = (encoding + '').toLowerCase()
loweredCase = true
}
}
}
// This property is used by `Buffer.isBuffer` (and the `is-buffer` npm package)
// to detect a Buffer instance. It's not possible to use `instanceof Buffer`
// reliably in a browserify context because there could be multiple different
// copies of the 'buffer' package in use. This method works even for Buffer
// instances that were created from another copy of the `buffer` package.
// See: https://github.com/feross/buffer/issues/154
Buffer.prototype._isBuffer = true
function swap (b, n, m) {
var i = b[n]
b[n] = b[m]
b[m] = i
}
Buffer.prototype.swap16 = function swap16 () {
var len = this.length
if (len % 2 !== 0) {
throw new RangeError('Buffer size must be a multiple of 16-bits')
}
for (var i = 0; i < len; i += 2) {
swap(this, i, i + 1)
}
return this
}
Buffer.prototype.swap32 = function swap32 () {
var len = this.length
if (len % 4 !== 0) {
throw new RangeError('Buffer size must be a multiple of 32-bits')
}
for (var i = 0; i < len; i += 4) {
swap(this, i, i + 3)
swap(this, i + 1, i + 2)
}
return this
}
Buffer.prototype.swap64 = function swap64 () {
var len = this.length
if (len % 8 !== 0) {
throw new RangeError('Buffer size must be a multiple of 64-bits')
}
for (var i = 0; i < len; i += 8) {
swap(this, i, i + 7)
swap(this, i + 1, i + 6)
swap(this, i + 2, i + 5)
swap(this, i + 3, i + 4)
}
return this
}
Buffer.prototype.toString = function toString () {
var length = this.length
if (length === 0) return ''
if (arguments.length === 0) return utf8Slice(this, 0, length)
return slowToString.apply(this, arguments)
}
Buffer.prototype.toLocaleString = Buffer.prototype.toString
Buffer.prototype.equals = function equals (b) {
if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')
if (this === b) return true
return Buffer.compare(this, b) === 0
}
Buffer.prototype.inspect = function inspect () {
var str = ''
var max = exports.INSPECT_MAX_BYTES
str = this.toString('hex', 0, max).replace(/(.{2})/g, '$1 ').trim()
if (this.length > max) str += ' ... '
return '<Buffer ' + str + '>'
}
Buffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {
if (isInstance(target, Uint8Array)) {
target = Buffer.from(target, target.offset, target.byteLength)
}
if (!Buffer.isBuffer(target)) {
throw new TypeError(
'The "target" argument must be one of type Buffer or Uint8Array. ' +
'Received type ' + (typeof target)
)
}
if (start === undefined) {
start = 0
}
if (end === undefined) {
end = target ? target.length : 0
}
if (thisStart === undefined) {
thisStart = 0
}
if (thisEnd === undefined) {
thisEnd = this.length
}
if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {
throw new RangeError('out of range index')
}
if (thisStart >= thisEnd && start >= end) {
return 0
}
if (thisStart >= thisEnd) {
return -1
}
if (start >= end) {
return 1
}
start >>>= 0
end >>>= 0
thisStart >>>= 0
thisEnd >>>= 0
if (this === target) return 0
var x = thisEnd - thisStart
var y = end - start
var len = Math.min(x, y)
var thisCopy = this.slice(thisStart, thisEnd)
var targetCopy = target.slice(start, end)
for (var i = 0; i < len; ++i) {
if (thisCopy[i] !== targetCopy[i]) {
x = thisCopy[i]
y = targetCopy[i]
break
}
}
if (x < y) return -1
if (y < x) return 1
return 0
}
// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,
// OR the last index of `val` in `buffer` at offset <= `byteOffset`.
//
// Arguments:
// - buffer - a Buffer to search
// - val - a string, Buffer, or number
// - byteOffset - an index into `buffer`; will be clamped to an int32
// - encoding - an optional encoding, relevant is val is a string
// - dir - true for indexOf, false for lastIndexOf
function bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {
// Empty buffer means no match
if (buffer.length === 0) return -1
// Normalize byteOffset
if (typeof byteOffset === 'string') {
encoding = byteOffset
byteOffset = 0
} else if (byteOffset > 0x7fffffff) {
byteOffset = 0x7fffffff
} else if (byteOffset < -0x80000000) {
byteOffset = -0x80000000
}
byteOffset = +byteOffset // Coerce to Number.
if (numberIsNaN(byteOffset)) {
// byteOffset: it it's undefined, null, NaN, "foo", etc, search whole buffer
byteOffset = dir ? 0 : (buffer.length - 1)
}
// Normalize byteOffset: negative offsets start from the end of the buffer
if (byteOffset < 0) byteOffset = buffer.length + byteOffset
if (byteOffset >= buffer.length) {
if (dir) return -1
else byteOffset = buffer.length - 1
} else if (byteOffset < 0) {
if (dir) byteOffset = 0
else return -1
}
// Normalize val
if (typeof val === 'string') {
val = Buffer.from(val, encoding)
}
// Finally, search either indexOf (if dir is true) or lastIndexOf
if (Buffer.isBuffer(val)) {
// Special case: looking for empty string/buffer always fails
if (val.length === 0) {
return -1
}
return arrayIndexOf(buffer, val, byteOffset, encoding, dir)
} else if (typeof val === 'number') {
val = val & 0xFF // Search for a byte value [0-255]
if (typeof Uint8Array.prototype.indexOf === 'function') {
if (dir) {
return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)
} else {
return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)
}
}
return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)
}
throw new TypeError('val must be string, number or Buffer')
}
function arrayIndexOf (arr, val, byteOffset, encoding, dir) {
var indexSize = 1
var arrLength = arr.length
var valLength = val.length
if (encoding !== undefined) {
encoding = String(encoding).toLowerCase()
if (encoding === 'ucs2' || encoding === 'ucs-2' ||
encoding === 'utf16le' || encoding === 'utf-16le') {
if (arr.length < 2 || val.length < 2) {
return -1
}
indexSize = 2
arrLength /= 2
valLength /= 2
byteOffset /= 2
}
}
function read (buf, i) {
if (indexSize === 1) {
return buf[i]
} else {
return buf.readUInt16BE(i * indexSize)
}
}
var i
if (dir) {
var foundIndex = -1
for (i = byteOffset; i < arrLength; i++) {
if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {
if (foundIndex === -1) foundIndex = i
if (i - foundIndex + 1 === valLength) return foundIndex * indexSize
} else {
if (foundIndex !== -1) i -= i - foundIndex
foundIndex = -1
}
}
} else {
if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength
for (i = byteOffset; i >= 0; i--) {
var found = true
for (var j = 0; j < valLength; j++) {
if (read(arr, i + j) !== read(val, j)) {
found = false
break
}
}
if (found) return i
}
}
return -1
}
Buffer.prototype.includes = function includes (val, byteOffset, encoding) {
return this.indexOf(val, byteOffset, encoding) !== -1
}
Buffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {
return bidirectionalIndexOf(this, val, byteOffset, encoding, true)
}
Buffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {
return bidirectionalIndexOf(this, val, byteOffset, encoding, false)
}
function hexWrite (buf, string, offset, length) {
offset = Number(offset) || 0
var remaining = buf.length - offset
if (!length) {
length = remaining
} else {
length = Number(length)
if (length > remaining) {
length = remaining
}
}
var strLen = string.length
if (length > strLen / 2) {
length = strLen / 2
}
for (var i = 0; i < length; ++i) {
var parsed = parseInt(string.substr(i * 2, 2), 16)
if (numberIsNaN(parsed)) return i
buf[offset + i] = parsed
}
return i
}
function utf8Write (buf, string, offset, length) {
return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)
}
function asciiWrite (buf, string, offset, length) {
return blitBuffer(asciiToBytes(string), buf, offset, length)
}
function latin1Write (buf, string, offset, length) {
return asciiWrite(buf, string, offset, length)
}
function base64Write (buf, string, offset, length) {
return blitBuffer(base64ToBytes(string), buf, offset, length)
}
function ucs2Write (buf, string, offset, length) {
return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)
}
Buffer.prototype.write = function write (string, offset, length, encoding) {
// Buffer#write(string)
if (offset === undefined) {
encoding = 'utf8'
length = this.length
offset = 0
// Buffer#write(string, encoding)
} else if (length === undefined && typeof offset === 'string') {
encoding = offset
length = this.length
offset = 0
// Buffer#write(string, offset[, length][, encoding])
} else if (isFinite(offset)) {
offset = offset >>> 0
if (isFinite(length)) {
length = length >>> 0
if (encoding === undefined) encoding = 'utf8'
} else {
encoding = length
length = undefined
}
} else {
throw new Error(
'Buffer.write(string, encoding, offset[, length]) is no longer supported'
)
}
var remaining = this.length - offset
if (length === undefined || length > remaining) length = remaining
if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {
throw new RangeError('Attempt to write outside buffer bounds')
}
if (!encoding) encoding = 'utf8'
var loweredCase = false
for (;;) {
switch (encoding) {
case 'hex':
return hexWrite(this, string, offset, length)
case 'utf8':
case 'utf-8':
return utf8Write(this, string, offset, length)
case 'ascii':
return asciiWrite(this, string, offset, length)
case 'latin1':
case 'binary':
return latin1Write(this, string, offset, length)
case 'base64':
// Warning: maxLength not taken into account in base64Write
return base64Write(this, string, offset, length)
case 'ucs2':
case 'ucs-2':
case 'utf16le':
case 'utf-16le':
return ucs2Write(this, string, offset, length)
default:
if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)
encoding = ('' + encoding).toLowerCase()
loweredCase = true
}
}
}
Buffer.prototype.toJSON = function toJSON () {
return {
type: 'Buffer',
data: Array.prototype.slice.call(this._arr || this, 0)
}
}
function base64Slice (buf, start, end) {
if (start === 0 && end === buf.length) {
return base64.fromByteArray(buf)
} else {
return base64.fromByteArray(buf.slice(start, end))
}
}
function utf8Slice (buf, start, end) {
end = Math.min(buf.length, end)
var res = []
var i = start
while (i < end) {
var firstByte = buf[i]
var codePoint = null
var bytesPerSequence = (firstByte > 0xEF) ? 4
: (firstByte > 0xDF) ? 3
: (firstByte > 0xBF) ? 2
: 1
if (i + bytesPerSequence <= end) {
var secondByte, thirdByte, fourthByte, tempCodePoint
switch (bytesPerSequence) {
case 1:
if (firstByte < 0x80) {
codePoint = firstByte
}
break
case 2:
secondByte = buf[i + 1]
if ((secondByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)
if (tempCodePoint > 0x7F) {
codePoint = tempCodePoint
}
}
break
case 3:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)
if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {
codePoint = tempCodePoint
}
}
break
case 4:
secondByte = buf[i + 1]
thirdByte = buf[i + 2]
fourthByte = buf[i + 3]
if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {
tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)
if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {
codePoint = tempCodePoint
}
}
}
}
if (codePoint === null) {
// we did not generate a valid codePoint so insert a
// replacement char (U+FFFD) and advance only 1 byte
codePoint = 0xFFFD
bytesPerSequence = 1
} else if (codePoint > 0xFFFF) {
// encode to utf16 (surrogate pair dance)
codePoint -= 0x10000
res.push(codePoint >>> 10 & 0x3FF | 0xD800)
codePoint = 0xDC00 | codePoint & 0x3FF
}
res.push(codePoint)
i += bytesPerSequence
}
return decodeCodePointsArray(res)
}
// Based on http://stackoverflow.com/a/22747272/680742, the browser with
// the lowest limit is Chrome, with 0x10000 args.
// We go 1 magnitude less, for safety
var MAX_ARGUMENTS_LENGTH = 0x1000
function decodeCodePointsArray (codePoints) {
var len = codePoints.length
if (len <= MAX_ARGUMENTS_LENGTH) {
return String.fromCharCode.apply(String, codePoints) // avoid extra slice()
}
// Decode in chunks to avoid "call stack size exceeded".
var res = ''
var i = 0
while (i < len) {
res += String.fromCharCode.apply(
String,
codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)
)
}
return res
}
function asciiSlice (buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i] & 0x7F)
}
return ret
}
function latin1Slice (buf, start, end) {
var ret = ''
end = Math.min(buf.length, end)
for (var i = start; i < end; ++i) {
ret += String.fromCharCode(buf[i])
}
return ret
}
function hexSlice (buf, start, end) {
var len = buf.length
if (!start || start < 0) start = 0
if (!end || end < 0 || end > len) end = len
var out = ''
for (var i = start; i < end; ++i) {
out += toHex(buf[i])
}
return out
}
function utf16leSlice (buf, start, end) {
var bytes = buf.slice(start, end)
var res = ''
for (var i = 0; i < bytes.length; i += 2) {
res += String.fromCharCode(bytes[i] + (bytes[i + 1] * 256))
}
return res
}
Buffer.prototype.slice = function slice (start, end) {
var len = this.length
start = ~~start
end = end === undefined ? len : ~~end
if (start < 0) {
start += len
if (start < 0) start = 0
} else if (start > len) {
start = len
}
if (end < 0) {
end += len
if (end < 0) end = 0
} else if (end > len) {
end = len
}
if (end < start) end = start
var newBuf = this.subarray(start, end)
// Return an augmented `Uint8Array` instance
newBuf.__proto__ = Buffer.prototype
return newBuf
}
/*
* Need to make sure that buffer isn't trying to write out of bounds.
*/
function checkOffset (offset, ext, length) {
if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')
if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')
}
Buffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
return val
}
Buffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
checkOffset(offset, byteLength, this.length)
}
var val = this[offset + --byteLength]
var mul = 1
while (byteLength > 0 && (mul *= 0x100)) {
val += this[offset + --byteLength] * mul
}
return val
}
Buffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 1, this.length)
return this[offset]
}
Buffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
return this[offset] | (this[offset + 1] << 8)
}
Buffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
return (this[offset] << 8) | this[offset + 1]
}
Buffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ((this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16)) +
(this[offset + 3] * 0x1000000)
}
Buffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] * 0x1000000) +
((this[offset + 1] << 16) |
(this[offset + 2] << 8) |
this[offset + 3])
}
Buffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var val = this[offset]
var mul = 1
var i = 0
while (++i < byteLength && (mul *= 0x100)) {
val += this[offset + i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) checkOffset(offset, byteLength, this.length)
var i = byteLength
var mul = 1
var val = this[offset + --i]
while (i > 0 && (mul *= 0x100)) {
val += this[offset + --i] * mul
}
mul *= 0x80
if (val >= mul) val -= Math.pow(2, 8 * byteLength)
return val
}
Buffer.prototype.readInt8 = function readInt8 (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 1, this.length)
if (!(this[offset] & 0x80)) return (this[offset])
return ((0xff - this[offset] + 1) * -1)
}
Buffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset] | (this[offset + 1] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 2, this.length)
var val = this[offset + 1] | (this[offset] << 8)
return (val & 0x8000) ? val | 0xFFFF0000 : val
}
Buffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset]) |
(this[offset + 1] << 8) |
(this[offset + 2] << 16) |
(this[offset + 3] << 24)
}
Buffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return (this[offset] << 24) |
(this[offset + 1] << 16) |
(this[offset + 2] << 8) |
(this[offset + 3])
}
Buffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, true, 23, 4)
}
Buffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 4, this.length)
return ieee754.read(this, offset, false, 23, 4)
}
Buffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, true, 52, 8)
}
Buffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {
offset = offset >>> 0
if (!noAssert) checkOffset(offset, 8, this.length)
return ieee754.read(this, offset, false, 52, 8)
}
function checkInt (buf, value, offset, ext, max, min) {
if (!Buffer.isBuffer(buf)) throw new TypeError('"buffer" argument must be a Buffer instance')
if (value > max || value < min) throw new RangeError('"value" argument is out of bounds')
if (offset + ext > buf.length) throw new RangeError('Index out of range')
}
Buffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
var mul = 1
var i = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
byteLength = byteLength >>> 0
if (!noAssert) {
var maxBytes = Math.pow(2, 8 * byteLength) - 1
checkInt(this, value, offset, byteLength, maxBytes, 0)
}
var i = byteLength - 1
var mul = 1
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
this[offset + i] = (value / mul) & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)
this[offset] = (value & 0xff)
return offset + 1
}
Buffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
return offset + 2
}
Buffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
return offset + 2
}
Buffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
this[offset + 3] = (value >>> 24)
this[offset + 2] = (value >>> 16)
this[offset + 1] = (value >>> 8)
this[offset] = (value & 0xff)
return offset + 4
}
Buffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
return offset + 4
}
Buffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
var limit = Math.pow(2, (8 * byteLength) - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = 0
var mul = 1
var sub = 0
this[offset] = value & 0xFF
while (++i < byteLength && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
var limit = Math.pow(2, (8 * byteLength) - 1)
checkInt(this, value, offset, byteLength, limit - 1, -limit)
}
var i = byteLength - 1
var mul = 1
var sub = 0
this[offset + i] = value & 0xFF
while (--i >= 0 && (mul *= 0x100)) {
if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {
sub = 1
}
this[offset + i] = ((value / mul) >> 0) - sub & 0xFF
}
return offset + byteLength
}
Buffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)
if (value < 0) value = 0xff + value + 1
this[offset] = (value & 0xff)
return offset + 1
}
Buffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
return offset + 2
}
Buffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)
this[offset] = (value >>> 8)
this[offset + 1] = (value & 0xff)
return offset + 2
}
Buffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
this[offset] = (value & 0xff)
this[offset + 1] = (value >>> 8)
this[offset + 2] = (value >>> 16)
this[offset + 3] = (value >>> 24)
return offset + 4
}
Buffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)
if (value < 0) value = 0xffffffff + value + 1
this[offset] = (value >>> 24)
this[offset + 1] = (value >>> 16)
this[offset + 2] = (value >>> 8)
this[offset + 3] = (value & 0xff)
return offset + 4
}
function checkIEEE754 (buf, value, offset, ext, max, min) {
if (offset + ext > buf.length) throw new RangeError('Index out of range')
if (offset < 0) throw new RangeError('Index out of range')
}
function writeFloat (buf, value, offset, littleEndian, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)
}
ieee754.write(buf, value, offset, littleEndian, 23, 4)
return offset + 4
}
Buffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {
return writeFloat(this, value, offset, true, noAssert)
}
Buffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {
return writeFloat(this, value, offset, false, noAssert)
}
function writeDouble (buf, value, offset, littleEndian, noAssert) {
value = +value
offset = offset >>> 0
if (!noAssert) {
checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)
}
ieee754.write(buf, value, offset, littleEndian, 52, 8)
return offset + 8
}
Buffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {
return writeDouble(this, value, offset, true, noAssert)
}
Buffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {
return writeDouble(this, value, offset, false, noAssert)
}
// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)
Buffer.prototype.copy = function copy (target, targetStart, start, end) {
if (!Buffer.isBuffer(target)) throw new TypeError('argument should be a Buffer')
if (!start) start = 0
if (!end && end !== 0) end = this.length
if (targetStart >= target.length) targetStart = target.length
if (!targetStart) targetStart = 0
if (end > 0 && end < start) end = start
// Copy 0 bytes; we're done
if (end === start) return 0
if (target.length === 0 || this.length === 0) return 0
// Fatal error conditions
if (targetStart < 0) {
throw new RangeError('targetStart out of bounds')
}
if (start < 0 || start >= this.length) throw new RangeError('Index out of range')
if (end < 0) throw new RangeError('sourceEnd out of bounds')
// Are we oob?
if (end > this.length) end = this.length
if (target.length - targetStart < end - start) {
end = target.length - targetStart + start
}
var len = end - start
if (this === target && typeof Uint8Array.prototype.copyWithin === 'function') {
// Use built-in when available, missing from IE11
this.copyWithin(targetStart, start, end)
} else if (this === target && start < targetStart && targetStart < end) {
// descending copy from end
for (var i = len - 1; i >= 0; --i) {
target[i + targetStart] = this[i + start]
}
} else {
Uint8Array.prototype.set.call(
target,
this.subarray(start, end),
targetStart
)
}
return len
}
// Usage:
// buffer.fill(number[, offset[, end]])
// buffer.fill(buffer[, offset[, end]])
// buffer.fill(string[, offset[, end]][, encoding])
Buffer.prototype.fill = function fill (val, start, end, encoding) {
// Handle string cases:
if (typeof val === 'string') {
if (typeof start === 'string') {
encoding = start
start = 0
end = this.length
} else if (typeof end === 'string') {
encoding = end
end = this.length
}
if (encoding !== undefined && typeof encoding !== 'string') {
throw new TypeError('encoding must be a string')
}
if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {
throw new TypeError('Unknown encoding: ' + encoding)
}
if (val.length === 1) {
var code = val.charCodeAt(0)
if ((encoding === 'utf8' && code < 128) ||
encoding === 'latin1') {
// Fast path: If `val` fits into a single byte, use that numeric value.
val = code
}
}
} else if (typeof val === 'number') {
val = val & 255
}
// Invalid ranges are not set to a default, so can range check early.
if (start < 0 || this.length < start || this.length < end) {
throw new RangeError('Out of range index')
}
if (end <= start) {
return this
}
start = start >>> 0
end = end === undefined ? this.length : end >>> 0
if (!val) val = 0
var i
if (typeof val === 'number') {
for (i = start; i < end; ++i) {
this[i] = val
}
} else {
var bytes = Buffer.isBuffer(val)
? val
: Buffer.from(val, encoding)
var len = bytes.length
if (len === 0) {
throw new TypeError('The value "' + val +
'" is invalid for argument "value"')
}
for (i = 0; i < end - start; ++i) {
this[i + start] = bytes[i % len]
}
}
return this
}
// HELPER FUNCTIONS
// ================
var INVALID_BASE64_RE = /[^+/0-9A-Za-z-_]/g
function base64clean (str) {
// Node takes equal signs as end of the Base64 encoding
str = str.split('=')[0]
// Node strips out invalid characters like \n and \t from the string, base64-js does not
str = str.trim().replace(INVALID_BASE64_RE, '')
// Node converts strings with length < 2 to ''
if (str.length < 2) return ''
// Node allows for non-padded base64 strings (missing trailing ===), base64-js does not
while (str.length % 4 !== 0) {
str = str + '='
}
return str
}
function toHex (n) {
if (n < 16) return '0' + n.toString(16)
return n.toString(16)
}
function utf8ToBytes (string, units) {
units = units || Infinity
var codePoint
var length = string.length
var leadSurrogate = null
var bytes = []
for (var i = 0; i < length; ++i) {
codePoint = string.charCodeAt(i)
// is surrogate component
if (codePoint > 0xD7FF && codePoint < 0xE000) {
// last char was a lead
if (!leadSurrogate) {
// no lead yet
if (codePoint > 0xDBFF) {
// unexpected trail
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
} else if (i + 1 === length) {
// unpaired lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
continue
}
// valid lead
leadSurrogate = codePoint
continue
}
// 2 leads in a row
if (codePoint < 0xDC00) {
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
leadSurrogate = codePoint
continue
}
// valid surrogate pair
codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000
} else if (leadSurrogate) {
// valid bmp char, but last char was a lead
if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)
}
leadSurrogate = null
// encode utf8
if (codePoint < 0x80) {
if ((units -= 1) < 0) break
bytes.push(codePoint)
} else if (codePoint < 0x800) {
if ((units -= 2) < 0) break
bytes.push(
codePoint >> 0x6 | 0xC0,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x10000) {
if ((units -= 3) < 0) break
bytes.push(
codePoint >> 0xC | 0xE0,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else if (codePoint < 0x110000) {
if ((units -= 4) < 0) break
bytes.push(
codePoint >> 0x12 | 0xF0,
codePoint >> 0xC & 0x3F | 0x80,
codePoint >> 0x6 & 0x3F | 0x80,
codePoint & 0x3F | 0x80
)
} else {
throw new Error('Invalid code point')
}
}
return bytes
}
function asciiToBytes (str) {
var byteArray = []
for (var i = 0; i < str.length; ++i) {
// Node's code seems to be doing this and not & 0x7F..
byteArray.push(str.charCodeAt(i) & 0xFF)
}
return byteArray
}
function utf16leToBytes (str, units) {
var c, hi, lo
var byteArray = []
for (var i = 0; i < str.length; ++i) {
if ((units -= 2) < 0) break
c = str.charCodeAt(i)
hi = c >> 8
lo = c % 256
byteArray.push(lo)
byteArray.push(hi)
}
return byteArray
}
function base64ToBytes (str) {
return base64.toByteArray(base64clean(str))
}
function blitBuffer (src, dst, offset, length) {
for (var i = 0; i < length; ++i) {
if ((i + offset >= dst.length) || (i >= src.length)) break
dst[i + offset] = src[i]
}
return i
}
// ArrayBuffer or Uint8Array objects from other contexts (i.e. iframes) do not pass
// the `instanceof` check but they should be treated as of that type.
// See: https://github.com/feross/buffer/issues/166
function isInstance (obj, type) {
return obj instanceof type ||
(obj != null && obj.constructor != null && obj.constructor.name != null &&
obj.constructor.name === type.name)
}
function numberIsNaN (obj) {
// For IE11 support
return obj !== obj // eslint-disable-line no-self-compare
}
}).call(this)}).call(this,require("buffer").Buffer)
},{"base64-js":1,"buffer":3,"ieee754":4}],4:[function(require,module,exports){
/*! ieee754. BSD-3-Clause License. Feross Aboukhadijeh <https://feross.org/opensource> */
exports.read = function (buffer, offset, isLE, mLen, nBytes) {
var e, m
var eLen = (nBytes * 8) - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var nBits = -7
var i = isLE ? (nBytes - 1) : 0
var d = isLE ? -1 : 1
var s = buffer[offset + i]
i += d
e = s & ((1 << (-nBits)) - 1)
s >>= (-nBits)
nBits += eLen
for (; nBits > 0; e = (e * 256) + buffer[offset + i], i += d, nBits -= 8) {}
m = e & ((1 << (-nBits)) - 1)
e >>= (-nBits)
nBits += mLen
for (; nBits > 0; m = (m * 256) + buffer[offset + i], i += d, nBits -= 8) {}
if (e === 0) {
e = 1 - eBias
} else if (e === eMax) {
return m ? NaN : ((s ? -1 : 1) * Infinity)
} else {
m = m + Math.pow(2, mLen)
e = e - eBias
}
return (s ? -1 : 1) * m * Math.pow(2, e - mLen)
}
exports.write = function (buffer, value, offset, isLE, mLen, nBytes) {
var e, m, c
var eLen = (nBytes * 8) - mLen - 1
var eMax = (1 << eLen) - 1
var eBias = eMax >> 1
var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)
var i = isLE ? 0 : (nBytes - 1)
var d = isLE ? 1 : -1
var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0
value = Math.abs(value)
if (isNaN(value) || value === Infinity) {
m = isNaN(value) ? 1 : 0
e = eMax
} else {
e = Math.floor(Math.log(value) / Math.LN2)
if (value * (c = Math.pow(2, -e)) < 1) {
e--
c *= 2
}
if (e + eBias >= 1) {
value += rt / c
} else {
value += rt * Math.pow(2, 1 - eBias)
}
if (value * c >= 2) {
e++
c /= 2
}
if (e + eBias >= eMax) {
m = 0
e = eMax
} else if (e + eBias >= 1) {
m = ((value * c) - 1) * Math.pow(2, mLen)
e = e + eBias
} else {
m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)
e = 0
}
}
for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}
e = (e << mLen) | m
eLen += mLen
for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}
buffer[offset + i - d] |= s * 128
}
},{}],5:[function(require,module,exports){
let urlAlphabet =
'useandom-26T198340PX75pxJACKVERYMINDBUSHWOLF_GQZbfghjklqvwyzrict'
let customAlphabet = (alphabet, defaultSize = 21) => {
return (size = defaultSize) => {
let id = ''
let i = size
while (i--) {
id += alphabet[(Math.random() * alphabet.length) | 0]
}
return id
}
}
let nanoid = (size = 21) => {
let id = ''
let i = size
while (i--) {
id += urlAlphabet[(Math.random() * 64) | 0]
}
return id
}
module.exports = { nanoid, customAlphabet }
},{}],6:[function(require,module,exports){
var x=String;
var create=function() {return {isColorSupported:false,reset:x,bold:x,dim:x,italic:x,underline:x,inverse:x,hidden:x,strikethrough:x,black:x,red:x,green:x,yellow:x,blue:x,magenta:x,cyan:x,white:x,gray:x,bgBlack:x,bgRed:x,bgGreen:x,bgYellow:x,bgBlue:x,bgMagenta:x,bgCyan:x,bgWhite:x}};
module.exports=create();
module.exports.createColors = create;
},{}],7:[function(require,module,exports){
let tokenizer = require('postcss/lib/tokenize')
let Comment = require('postcss/lib/comment')
let Parser = require('postcss/lib/parser')
class SafeParser extends Parser {
createTokenizer() {
this.tokenizer = tokenizer(this.input, { ignoreErrors: true })
}
comment(token) {
let node = new Comment()
this.init(node, token[2])
let pos =
this.input.fromOffset(token[3]) ||
this.input.fromOffset(this.input.css.length - 1)
node.source.end = {
offset: token[3],
line: pos.line,
column: pos.col
}
let text = token[1].slice(2)
if (text.slice(-2) === '*/') text = text.slice(0, -2)
if (/^\s*$/.test(text)) {
node.text = ''
node.raws.left = text
node.raws.right = ''
} else {
let match = text.match(/^(\s*)([^]*\S)(\s*)$/)
node.text = match[2]
node.raws.left = match[1]
node.raws.right = match[3]
}
}
decl(tokens) {
if (tokens.length > 1 && tokens.some(i => i[0] === 'word')) {
super.decl(tokens)
}
}
unclosedBracket() {}
unknownWord(tokens) {
this.spaces += tokens.map(i => i[1]).join('')
}
unexpectedClose() {
this.current.raws.after += '}'
}
doubleColon() {}
unnamedAtrule(node) {
node.name = ''
}
precheckMissedSemicolon(tokens) {
let colon = this.colon(tokens)
if (colon === false) return
let nextStart, prevEnd
for (nextStart = colon - 1; nextStart >= 0; nextStart--) {
if (tokens[nextStart][0] === 'word') break
}
if (nextStart === 0) return
for (prevEnd = nextStart - 1; prevEnd >= 0; prevEnd--) {
if (tokens[prevEnd][0] !== 'space') {
prevEnd += 1
break
}
}
let other = tokens.slice(nextStart)
let spaces = tokens.slice(prevEnd, nextStart)
tokens.splice(prevEnd, tokens.length - prevEnd)
this.spaces = spaces.map(i => i[1]).join('')
this.decl(other)
}
checkMissedSemicolon() {}
endFile() {
if (this.current.nodes && this.current.nodes.length) {
this.current.raws.semicolon = this.semicolon
}
this.current.raws.after = (this.current.raws.after || '') + this.spaces
while (this.current.parent) {
this.current = this.current.parent
this.current.raws.after = ''
}
}
}
module.exports = SafeParser
},{"postcss/lib/comment":10,"postcss/lib/parser":23,"postcss/lib/tokenize":33}],8:[function(require,module,exports){
let { Input } = require('postcss')
let SafeParser = require('./safe-parser')
module.exports = function safeParse(css, opts) {
let input = new Input(css, opts)
let parser = new SafeParser(input)
parser.parse()
return parser.root
}
},{"./safe-parser":7,"postcss":24}],9:[function(require,module,exports){
'use strict'
let Container = require('./container')
class AtRule extends Container {
constructor(defaults) {
super(defaults)
this.type = 'atrule'
}
append(...children) {
if (!this.proxyOf.nodes) this.nodes = []
return super.append(...children)
}
prepend(...children) {
if (!this.proxyOf.nodes) this.nodes = []
return super.prepend(...children)
}
}
module.exports = AtRule
AtRule.default = AtRule
Container.registerAtRule(AtRule)
},{"./container":11}],10:[function(require,module,exports){
'use strict'
let Node = require('./node')
class Comment extends Node {
constructor(defaults) {
super(defaults)
this.type = 'comment'
}
}
module.exports = Comment
Comment.default = Comment
},{"./node":21}],11:[function(require,module,exports){
'use strict'
let { isClean, my } = require('./symbols')
let Declaration = require('./declaration')
let Comment = require('./comment')
let Node = require('./node')
let parse, Rule, AtRule, Root
function cleanSource(nodes) {
return nodes.map(i => {
if (i.nodes) i.nodes = cleanSource(i.nodes)
delete i.source
return i
})
}
function markDirtyUp(node) {
node[isClean] = false
if (node.proxyOf.nodes) {
for (let i of node.proxyOf.nodes) {
markDirtyUp(i)
}
}
}
class Container extends Node {
append(...children) {
for (let child of children) {
let nodes = this.normalize(child, this.last)
for (let node of nodes) this.proxyOf.nodes.push(node)
}
this.markDirty()
return this
}
cleanRaws(keepBetween) {
super.cleanRaws(keepBetween)
if (this.nodes) {
for (let node of this.nodes) node.cleanRaws(keepBetween)
}
}
each(callback) {
if (!this.proxyOf.nodes) return undefined
let iterator = this.getIterator()
let index, result
while (this.indexes[iterator] < this.proxyOf.nodes.length) {
index = this.indexes[iterator]
result = callback(this.proxyOf.nodes[index], index)
if (result === false) break
this.indexes[iterator] += 1
}
delete this.indexes[iterator]
return result
}
every(condition) {
return this.nodes.every(condition)
}
get first() {
if (!this.proxyOf.nodes) return undefined
return this.proxyOf.nodes[0]
}
getIterator() {
if (!this.lastEach) this.lastEach = 0
if (!this.indexes) this.indexes = {}
this.lastEach += 1
let iterator = this.lastEach
this.indexes[iterator] = 0
return iterator
}
getProxyProcessor() {
return {
get(node, prop) {
if (prop === 'proxyOf') {
return node
} else if (!node[prop]) {
return node[prop]
} else if (
prop === 'each' ||
(typeof prop === 'string' && prop.startsWith('walk'))
) {
return (...args) => {
return node[prop](
...args.map(i => {
if (typeof i === 'function') {
return (child, index) => i(child.toProxy(), index)
} else {
return i
}
})
)
}
} else if (prop === 'every' || prop === 'some') {
return cb => {
return node[prop]((child, ...other) =>
cb(child.toProxy(), ...other)
)
}
} else if (prop === 'root') {
return () => node.root().toProxy()
} else if (prop === 'nodes') {
return node.nodes.map(i => i.toProxy())
} else if (prop === 'first' || prop === 'last') {
return node[prop].toProxy()
} else {
return node[prop]
}
},
set(node, prop, value) {
if (node[prop] === value) return true
node[prop] = value
if (prop === 'name' || prop === 'params' || prop === 'selector') {
node.markDirty()
}
return true
}
}
}
index(child) {
if (typeof child === 'number') return child
if (child.proxyOf) child = child.proxyOf
return this.proxyOf.nodes.indexOf(child)
}
insertAfter(exist, add) {
let existIndex = this.index(exist)
let nodes = this.normalize(add, this.proxyOf.nodes[existIndex]).reverse()
existIndex = this.index(exist)
for (let node of nodes) this.proxyOf.nodes.splice(existIndex + 1, 0, node)
let index
for (let id in this.indexes) {
index = this.indexes[id]
if (existIndex < index) {
this.indexes[id] = index + nodes.length
}
}
this.markDirty()
return this
}
insertBefore(exist, add) {
let existIndex = this.index(exist)
let type = existIndex === 0 ? 'prepend' : false
let nodes = this.normalize(add, this.proxyOf.nodes[existIndex], type).reverse()
existIndex = this.index(exist)
for (let node of nodes) this.proxyOf.nodes.splice(existIndex, 0, node)
let index
for (let id in this.indexes) {
index = this.indexes[id]
if (existIndex <= index) {
this.indexes[id] = index + nodes.length
}
}
this.markDirty()
return this
}
get last() {
if (!this.proxyOf.nodes) return undefined
return this.proxyOf.nodes[this.proxyOf.nodes.length - 1]
}
normalize(nodes, sample) {
if (typeof nodes === 'string') {
nodes = cleanSource(parse(nodes).nodes)
} else if (Array.isArray(nodes)) {
nodes = nodes.slice(0)
for (let i of nodes) {
if (i.parent) i.parent.removeChild(i, 'ignore')
}
} else if (nodes.type === 'root' && this.type !== 'document') {
nodes = nodes.nodes.slice(0)
for (let i of nodes) {
if (i.parent) i.parent.removeChild(i, 'ignore')
}
} else if (nodes.type) {
nodes = [nodes]
} else if (nodes.prop) {
if (typeof nodes.value === 'undefined') {
throw new Error('Value field is missed in node creation')
} else if (typeof nodes.value !== 'string') {
nodes.value = String(nodes.value)
}
nodes = [new Declaration(nodes)]
} else if (nodes.selector) {
nodes = [new Rule(nodes)]
} else if (nodes.name) {
nodes = [new AtRule(nodes)]
} else if (nodes.text) {
nodes = [new Comment(nodes)]
} else {
throw new Error('Unknown node type in node creation')
}
let processed = nodes.map(i => {
/* c8 ignore next */
if (!i[my]) Container.rebuild(i)
i = i.proxyOf
if (i.parent) i.parent.removeChild(i)
if (i[isClean]) markDirtyUp(i)
if (typeof i.raws.before === 'undefined') {
if (sample && typeof sample.raws.before !== 'undefined') {
i.raws.before = sample.raws.before.replace(/\S/g, '')
}
}
i.parent = this.proxyOf
return i
})
return processed
}
prepend(...children) {
children = children.reverse()
for (let child of children) {
let nodes = this.normalize(child, this.first, 'prepend').reverse()
for (let node of nodes) this.proxyOf.nodes.unshift(node)
for (let id in this.indexes) {
this.indexes[id] = this.indexes[id] + nodes.length
}
}
this.markDirty()
return this
}
push(child) {
child.parent = this
this.proxyOf.nodes.push(child)
return this
}
removeAll() {
for (let node of this.proxyOf.nodes) node.parent = undefined
this.proxyOf.nodes = []
this.markDirty()
return this
}
removeChild(child) {
child = this.index(child)
this.proxyOf.nodes[child].parent = undefined
this.proxyOf.nodes.splice(child, 1)
let index
for (let id in this.indexes) {
index = this.indexes[id]
if (index >= child) {
this.indexes[id] = index - 1
}
}
this.markDirty()
return this
}
replaceValues(pattern, opts, callback) {
if (!callback) {
callback = opts
opts = {}
}
this.walkDecls(decl => {
if (opts.props && !opts.props.includes(decl.prop)) return
if (opts.fast && !decl.value.includes(opts.fast)) return
decl.value = decl.value.replace(pattern, callback)
})
this.markDirty()
return this
}
some(condition) {
return this.nodes.some(condition)
}
walk(callback) {
return this.each((child, i) => {
let result
try {
result = callback(child, i)
} catch (e) {
throw child.addToError(e)
}
if (result !== false && child.walk) {
result = child.walk(callback)
}
return result
})
}
walkAtRules(name, callback) {
if (!callback) {
callback = name
return this.walk((child, i) => {
if (child.type === 'atrule') {
return callback(child, i)
}
})
}
if (name instanceof RegExp) {
return this.walk((child, i) => {
if (child.type === 'atrule' && name.test(child.name)) {
return callback(child, i)
}
})
}
return this.walk((child, i) => {
if (child.type === 'atrule' && child.name === name) {
return callback(child, i)
}
})
}
walkComments(callback) {
return this.walk((child, i) => {
if (child.type === 'comment') {
return callback(child, i)
}
})
}
walkDecls(prop, callback) {
if (!callback) {
callback = prop
return this.walk((child, i) => {
if (child.type === 'decl') {
return callback(child, i)
}
})
}
if (prop instanceof RegExp) {
return this.walk((child, i) => {
if (child.type === 'decl' && prop.test(child.prop)) {
return callback(child, i)
}
})
}
return this.walk((child, i) => {
if (child.type === 'decl' && child.prop === prop) {
return callback(child, i)
}
})
}
walkRules(selector, callback) {
if (!callback) {
callback = selector
return this.walk((child, i) => {
if (child.type === 'rule') {
return callback(child, i)
}
})
}
if (selector instanceof RegExp) {
return this.walk((child, i) => {
if (child.type === 'rule' && selector.test(child.selector)) {
return callback(child, i)
}
})
}
return this.walk((child, i) => {
if (child.type === 'rule' && child.selector === selector) {
return callback(child, i)
}
})
}
}
Container.registerParse = dependant => {
parse = dependant
}
Container.registerRule = dependant => {
Rule = dependant
}
Container.registerAtRule = dependant => {
AtRule = dependant
}
Container.registerRoot = dependant => {
Root = dependant
}
module.exports = Container
Container.default = Container
/* c8 ignore start */
Container.rebuild = node => {
if (node.type === 'atrule') {
Object.setPrototypeOf(node, AtRule.prototype)
} else if (node.type === 'rule') {
Object.setPrototypeOf(node, Rule.prototype)
} else if (node.type === 'decl') {
Object.setPrototypeOf(node, Declaration.prototype)
} else if (node.type === 'comment') {
Object.setPrototypeOf(node, Comment.prototype)
} else if (node.type === 'root') {
Object.setPrototypeOf(node, Root.prototype)
}
node[my] = true
if (node.nodes) {
node.nodes.forEach(child => {
Container.rebuild(child)
})
}
}
/* c8 ignore stop */
},{"./comment":10,"./declaration":13,"./node":21,"./symbols":32}],12:[function(require,module,exports){
'use strict'
let pico = require('picocolors')
let terminalHighlight = require('./terminal-highlight')
class CssSyntaxError extends Error {
constructor(message, line, column, source, file, plugin) {
super(message)
this.name = 'CssSyntaxError'
this.reason = message
if (file) {
this.file = file
}
if (source) {
this.source = source
}
if (plugin) {
this.plugin = plugin
}
if (typeof line !== 'undefined' && typeof column !== 'undefined') {
if (typeof line === 'number') {
this.line = line
this.column = column
} else {
this.line = line.line
this.column = line.column
this.endLine = column.line
this.endColumn = column.column
}
}
this.setMessage()
if (Error.captureStackTrace) {
Error.captureStackTrace(this, CssSyntaxError)
}
}
setMessage() {
this.message = this.plugin ? this.plugin + ': ' : ''
this.message += this.file ? this.file : '<css input>'
if (typeof this.line !== 'undefined') {
this.message += ':' + this.line + ':' + this.column
}
this.message += ': ' + this.reason
}
showSourceCode(color) {
if (!this.source) return ''
let css = this.source
if (color == null) color = pico.isColorSupported
if (terminalHighlight) {
if (color) css = terminalHighlight(css)
}
let lines = css.split(/\r?\n/)
let start = Math.max(this.line - 3, 0)
let end = Math.min(this.line + 2, lines.length)
let maxWidth = String(end).length
let mark, aside
if (color) {
let { bold, gray, red } = pico.createColors(true)
mark = text => bold(red(text))
aside = text => gray(text)
} else {
mark = aside = str => str
}
return lines
.slice(start, end)
.map((line, index) => {
let number = start + 1 + index
let gutter = ' ' + (' ' + number).slice(-maxWidth) + ' | '
if (number === this.line) {
let spacing =
aside(gutter.replace(/\d/g, ' ')) +
line.slice(0, this.column - 1).replace(/[^\t]/g, ' ')
return mark('>') + aside(gutter) + line + '\n ' + spacing + mark('^')
}
return ' ' + aside(gutter) + line
})
.join('\n')
}
toString() {
let code = this.showSourceCode()
if (code) {
code = '\n\n' + code + '\n'
}
return this.name + ': ' + this.message + code
}
}
module.exports = CssSyntaxError
CssSyntaxError.default = CssSyntaxError
},{"./terminal-highlight":2,"picocolors":6}],13:[function(require,module,exports){
'use strict'
let Node = require('./node')
class Declaration extends Node {
constructor(defaults) {
if (
defaults &&
typeof defaults.value !== 'undefined' &&
typeof defaults.value !== 'string'
) {
defaults = { ...defaults, value: String(defaults.value) }
}
super(defaults)
this.type = 'decl'
}
get variable() {
return this.prop.startsWith('--') || this.prop[0] === '$'
}
}
module.exports = Declaration
Declaration.default = Declaration
},{"./node":21}],14:[function(require,module,exports){
'use strict'
let Container = require('./container')
let LazyResult, Processor
class Document extends Container {
constructor(defaults) {
// type needs to be passed to super, otherwise child roots won't be normalized correctly
super({ type: 'document', ...defaults })
if (!this.nodes) {
this.nodes = []
}
}
toResult(opts = {}) {
let lazy = new LazyResult(new Processor(), this, opts)
return lazy.stringify()
}
}
Document.registerLazyResult = dependant => {
LazyResult = dependant
}
Document.registerProcessor = dependant => {
Processor = dependant
}
module.exports = Document
Document.default = Document
},{"./container":11}],15:[function(require,module,exports){
'use strict'
let Declaration = require('./declaration')
let PreviousMap = require('./previous-map')
let Comment = require('./comment')
let AtRule = require('./at-rule')
let Input = require('./input')
let Root = require('./root')
let Rule = require('./rule')
function fromJSON(json, inputs) {
if (Array.isArray(json)) return json.map(n => fromJSON(n))
let { inputs: ownInputs, ...defaults } = json
if (ownInputs) {
inputs = []
for (let input of ownInputs) {
let inputHydrated = { ...input, __proto__: Input.prototype }
if (inputHydrated.map) {
inputHydrated.map = {
...inputHydrated.map,
__proto__: PreviousMap.prototype
}
}
inputs.push(inputHydrated)
}
}
if (defaults.nodes) {
defaults.nodes = json.nodes.map(n => fromJSON(n, inputs))
}
if (defaults.source) {
let { inputId, ...source } = defaults.source
defaults.source = source
if (inputId != null) {
defaults.source.input = inputs[inputId]
}
}
if (defaults.type === 'root') {
return new Root(defaults)
} else if (defaults.type === 'decl') {
return new Declaration(defaults)
} else if (defaults.type === 'rule') {
return new Rule(defaults)
} else if (defaults.type === 'comment') {
return new Comment(defaults)
} else if (defaults.type === 'atrule') {
return new AtRule(defaults)
} else {
throw new Error('Unknown node type: ' + json.type)
}
}
module.exports = fromJSON
fromJSON.default = fromJSON
},{"./at-rule":9,"./comment":10,"./declaration":13,"./input":16,"./previous-map":25,"./root":28,"./rule":29}],16:[function(require,module,exports){
'use strict'
let { SourceMapConsumer, SourceMapGenerator } = require('source-map-js')
let { fileURLToPath, pathToFileURL } = require('url')
let { isAbsolute, resolve } = require('path')
let { nanoid } = require('nanoid/non-secure')
let terminalHighlight = require('./terminal-highlight')
let CssSyntaxError = require('./css-syntax-error')
let PreviousMap = require('./previous-map')
let fromOffsetCache = Symbol('fromOffsetCache')
let sourceMapAvailable = Boolean(SourceMapConsumer && SourceMapGenerator)
let pathAvailable = Boolean(resolve && isAbsolute)
class Input {
constructor(css, opts = {}) {
if (
css === null ||
typeof css === 'undefined' ||
(typeof css === 'object' && !css.toString)
) {
throw new Error(`PostCSS received ${css} instead of CSS string`)
}
this.css = css.toString()
if (this.css[0] === '\uFEFF' || this.css[0] === '\uFFFE') {
this.hasBOM = true
this.css = this.css.slice(1)
} else {
this.hasBOM = false
}
if (opts.from) {
if (
!pathAvailable ||
/^\w+:\/\//.test(opts.from) ||
isAbsolute(opts.from)
) {
this.file = opts.from
} else {
this.file = resolve(opts.from)
}
}
if (pathAvailable && sourceMapAvailable) {
let map = new PreviousMap(this.css, opts)
if (map.text) {
this.map = map
let file = map.consumer().file
if (!this.file && file) this.file = this.mapResolve(file)
}
}
if (!this.file) {
this.id = '<input css ' + nanoid(6) + '>'
}
if (this.map) this.map.file = this.from
}
error(message, line, column, opts = {}) {
let result, endLine, endColumn
if (line && typeof line === 'object') {
let start = line
let end = column
if (typeof start.offset === 'number') {
let pos = this.fromOffset(start.offset)
line = pos.line
column = pos.col
} else {
line = start.line
column = start.column
}
if (typeof end.offset === 'number') {
let pos = this.fromOffset(end.offset)
endLine = pos.line
endColumn = pos.col
} else {
endLine = end.line
endColumn = end.column
}
} else if (!column) {
let pos = this.fromOffset(line)
line = pos.line
column = pos.col
}
let origin = this.origin(line, column, endLine, endColumn)
if (origin) {
result = new CssSyntaxError(
message,
origin.endLine === undefined
? origin.line
: { column: origin.column, line: origin.line },
origin.endLine === undefined
? origin.column
: { column: origin.endColumn, line: origin.endLine },
origin.source,
origin.file,
opts.plugin
)
} else {
result = new CssSyntaxError(
message,
endLine === undefined ? line : { column, line },
endLine === undefined ? column : { column: endColumn, line: endLine },
this.css,
this.file,
opts.plugin
)
}
result.input = { column, endColumn, endLine, line, source: this.css }
if (this.file) {
if (pathToFileURL) {
result.input.url = pathToFileURL(this.file).toString()
}
result.input.file = this.file
}
return result
}
get from() {
return this.file || this.id
}
fromOffset(offset) {
let lastLine, lineToIndex
if (!this[fromOffsetCache]) {
let lines = this.css.split('\n')
lineToIndex = new Array(lines.length)
let prevIndex = 0
for (let i = 0, l = lines.length; i < l; i++) {
lineToIndex[i] = prevIndex
prevIndex += lines[i].length + 1
}
this[fromOffsetCache] = lineToIndex
} else {
lineToIndex = this[fromOffsetCache]
}
lastLine = lineToIndex[lineToIndex.length - 1]
let min = 0
if (offset >= lastLine) {
min = lineToIndex.length - 1
} else {
let max = lineToIndex.length - 2
let mid
while (min < max) {
mid = min + ((max - min) >> 1)
if (offset < lineToIndex[mid]) {
max = mid - 1
} else if (offset >= lineToIndex[mid + 1]) {
min = mid + 1
} else {
min = mid
break
}
}
}
return {
col: offset - lineToIndex[min] + 1,
line: min + 1
}
}
mapResolve(file) {
if (/^\w+:\/\//.test(file)) {
return file
}
return resolve(this.map.consumer().sourceRoot || this.map.root || '.', file)
}
origin(line, column, endLine, endColumn) {
if (!this.map) return false
let consumer = this.map.consumer()
let from = consumer.originalPositionFor({ column, line })
if (!from.source) return false
let to
if (typeof endLine === 'number') {
to = consumer.originalPositionFor({ column: endColumn, line: endLine })
}
let fromUrl
if (isAbsolute(from.source)) {
fromUrl = pathToFileURL(from.source)
} else {
fromUrl = new URL(
from.source,
this.map.consumer().sourceRoot || pathToFileURL(this.map.mapFile)
)
}
let result = {
column: from.column,
endColumn: to && to.column,
endLine: to && to.line,
line: from.line,
url: fromUrl.toString()
}
if (fromUrl.protocol === 'file:') {
if (fileURLToPath) {
result.file = fileURLToPath(fromUrl)
} else {
/* c8 ignore next 2 */
throw new Error(`file: protocol is not available in this PostCSS build`)
}
}
let source = consumer.sourceContentFor(from.source)
if (source) result.source = source
return result
}
toJSON() {
let json = {}
for (let name of ['hasBOM', 'css', 'file', 'id']) {
if (this[name] != null) {
json[name] = this[name]
}
}
if (this.map) {
json.map = { ...this.map }
if (json.map.consumerCache) {
json.map.consumerCache = undefined
}
}
return json
}
}
module.exports = Input
Input.default = Input
if (terminalHighlight && terminalHighlight.registerInput) {
terminalHighlight.registerInput(Input)
}
},{"./css-syntax-error":12,"./previous-map":25,"./terminal-highlight":2,"nanoid/non-secure":5,"path":2,"source-map-js":2,"url":2}],17:[function(require,module,exports){
(function (process){(function (){
'use strict'
let { isClean, my } = require('./symbols')
let MapGenerator = require('./map-generator')
let stringify = require('./stringify')
let Container = require('./container')
let Document = require('./document')
let warnOnce = require('./warn-once')
let Result = require('./result')
let parse = require('./parse')
let Root = require('./root')
const TYPE_TO_CLASS_NAME = {
atrule: 'AtRule',
comment: 'Comment',
decl: 'Declaration',
document: 'Document',
root: 'Root',
rule: 'Rule'
}
const PLUGIN_PROPS = {
AtRule: true,
AtRuleExit: true,
Comment: true,
CommentExit: true,
Declaration: true,
DeclarationExit: true,
Document: true,
DocumentExit: true,
Once: true,
OnceExit: true,
postcssPlugin: true,
prepare: true,
Root: true,
RootExit: true,
Rule: true,
RuleExit: true
}
const NOT_VISITORS = {
Once: true,
postcssPlugin: true,
prepare: true
}
const CHILDREN = 0
function isPromise(obj) {
return typeof obj === 'object' && typeof obj.then === 'function'
}
function getEvents(node) {
let key = false
let type = TYPE_TO_CLASS_NAME[node.type]
if (node.type === 'decl') {
key = node.prop.toLowerCase()
} else if (node.type === 'atrule') {
key = node.name.toLowerCase()
}
if (key && node.append) {
return [
type,
type + '-' + key,
CHILDREN,
type + 'Exit',
type + 'Exit-' + key
]
} else if (key) {
return [type, type + '-' + key, type + 'Exit', type + 'Exit-' + key]
} else if (node.append) {
return [type, CHILDREN, type + 'Exit']
} else {
return [type, type + 'Exit']
}
}
function toStack(node) {
let events
if (node.type === 'document') {
events = ['Document', CHILDREN, 'DocumentExit']
} else if (node.type === 'root') {
events = ['Root', CHILDREN, 'RootExit']
} else {
events = getEvents(node)
}
return {
eventIndex: 0,
events,
iterator: 0,
node,
visitorIndex: 0,
visitors: []
}
}
function cleanMarks(node) {
node[isClean] = false
if (node.nodes) node.nodes.forEach(i => cleanMarks(i))
return node
}
let postcss = {}
class LazyResult {
constructor(processor, css, opts) {
this.stringified = false
this.processed = false
let root
if (
typeof css === 'object' &&
css !== null &&
(css.type === 'root' || css.type === 'document')
) {
root = cleanMarks(css)
} else if (css instanceof LazyResult || css instanceof Result) {
root = cleanMarks(css.root)
if (css.map) {
if (typeof opts.map === 'undefined') opts.map = {}
if (!opts.map.inline) opts.map.inline = false
opts.map.prev = css.map
}
} else {
let parser = parse
if (opts.syntax) parser = opts.syntax.parse
if (opts.parser) parser = opts.parser
if (parser.parse) parser = parser.parse
try {
root = parser(css, opts)
} catch (error) {
this.processed = true
this.error = error
}
if (root && !root[my]) {
/* c8 ignore next 2 */
Container.rebuild(root)
}
}
this.result = new Result(processor, root, opts)
this.helpers = { ...postcss, postcss, result: this.result }
this.plugins = this.processor.plugins.map(plugin => {
if (typeof plugin === 'object' && plugin.prepare) {
return { ...plugin, ...plugin.prepare(this.result) }
} else {
return plugin
}
})
}
async() {
if (this.error) return Promise.reject(this.error)
if (this.processed) return Promise.resolve(this.result)
if (!this.processing) {
this.processing = this.runAsync()
}
return this.processing
}
catch(onRejected) {
return this.async().catch(onRejected)
}
get content() {
return this.stringify().content
}
get css() {
return this.stringify().css
}
finally(onFinally) {
return this.async().then(onFinally, onFinally)
}
getAsyncError() {
throw new Error('Use process(css).then(cb) to work with async plugins')
}
handleError(error, node) {
let plugin = this.result.lastPlugin
try {
if (node) node.addToError(error)
this.error = error
if (error.name === 'CssSyntaxError' && !error.plugin) {
error.plugin = plugin.postcssPlugin
error.setMessage()
} else if (plugin.postcssVersion) {
if (process.env.NODE_ENV !== 'production') {
let pluginName = plugin.postcssPlugin
let pluginVer = plugin.postcssVersion
let runtimeVer = this.result.processor.version
let a = pluginVer.split('.')
let b = runtimeVer.split('.')
if (a[0] !== b[0] || parseInt(a[1]) > parseInt(b[1])) {
// eslint-disable-next-line no-console
console.error(
'Unknown error from PostCSS plugin. Your current PostCSS ' +
'version is ' +
runtimeVer +
', but ' +
pluginName +
' uses ' +
pluginVer +
'. Perhaps this is the source of the error below.'
)
}
}
}
} catch (err) {
/* c8 ignore next 3 */
// eslint-disable-next-line no-console
if (console && console.error) console.error(err)
}
return error
}
get map() {
return this.stringify().map
}
get messages() {
return this.sync().messages
}
get opts() {
return this.result.opts
}
prepareVisitors() {
this.listeners = {}
let add = (plugin, type, cb) => {
if (!this.listeners[type]) this.listeners[type] = []
this.listeners[type].push([plugin, cb])
}
for (let plugin of this.plugins) {
if (typeof plugin === 'object') {
for (let event in plugin) {
if (!PLUGIN_PROPS[event] && /^[A-Z]/.test(event)) {
throw new Error(
`Unknown event ${event} in ${plugin.postcssPlugin}. ` +
`Try to update PostCSS (${this.processor.version} now).`
)
}
if (!NOT_VISITORS[event]) {
if (typeof plugin[event] === 'object') {
for (let filter in plugin[event]) {
if (filter === '*') {
add(plugin, event, plugin[event][filter])
} else {
add(
plugin,
event + '-' + filter.toLowerCase(),
plugin[event][filter]
)
}
}
} else if (typeof plugin[event] === 'function') {
add(plugin, event, plugin[event])
}
}
}
}
}
this.hasListener = Object.keys(this.listeners).length > 0
}
get processor() {
return this.result.processor
}
get root() {
return this.sync().root
}
async runAsync() {
this.plugin = 0
for (let i = 0; i < this.plugins.length; i++) {
let plugin = this.plugins[i]
let promise = this.runOnRoot(plugin)
if (isPromise(promise)) {
try {
await promise
} catch (error) {
throw this.handleError(error)
}
}
}
this.prepareVisitors()
if (this.hasListener) {
let root = this.result.root
while (!root[isClean]) {
root[isClean] = true
let stack = [toStack(root)]
while (stack.length > 0) {
let promise = this.visitTick(stack)
if (isPromise(promise)) {
try {
await promise
} catch (e) {
let node = stack[stack.length - 1].node
throw this.handleError(e, node)
}
}
}
}
if (this.listeners.OnceExit) {
for (let [plugin, visitor] of this.listeners.OnceExit) {
this.result.lastPlugin = plugin
try {
if (root.type === 'document') {
let roots = root.nodes.map(subRoot =>
visitor(subRoot, this.helpers)
)
await Promise.all(roots)
} else {
await visitor(root, this.helpers)
}
} catch (e) {
throw this.handleError(e)
}
}
}
}
this.processed = true
return this.stringify()
}
runOnRoot(plugin) {
this.result.lastPlugin = plugin
try {
if (typeof plugin === 'object' && plugin.Once) {
if (this.result.root.type === 'document') {
let roots = this.result.root.nodes.map(root =>
plugin.Once(root, this.helpers)
)
if (isPromise(roots[0])) {
return Promise.all(roots)
}
return roots
}
return plugin.Once(this.result.root, this.helpers)
} else if (typeof plugin === 'function') {
return plugin(this.result.root, this.result)
}
} catch (error) {
throw this.handleError(error)
}
}
stringify() {
if (this.error) throw this.error
if (this.stringified) return this.result
this.stringified = true
this.sync()
let opts = this.result.opts
let str = stringify
if (opts.syntax) str = opts.syntax.stringify
if (opts.stringifier) str = opts.stringifier
if (str.stringify) str = str.stringify
let map = new MapGenerator(str, this.result.root, this.result.opts)
let data = map.generate()
this.result.css = data[0]
this.result.map = data[1]
return this.result
}
get [Symbol.toStringTag]() {
return 'LazyResult'
}
sync() {
if (this.error) throw this.error
if (this.processed) return this.result
this.processed = true
if (this.processing) {
throw this.getAsyncError()
}
for (let plugin of this.plugins) {
let promise = this.runOnRoot(plugin)
if (isPromise(promise)) {
throw this.getAsyncError()
}
}
this.prepareVisitors()
if (this.hasListener) {
let root = this.result.root
while (!root[isClean]) {
root[isClean] = true
this.walkSync(root)
}
if (this.listeners.OnceExit) {
if (root.type === 'document') {
for (let subRoot of root.nodes) {
this.visitSync(this.listeners.OnceExit, subRoot)
}
} else {
this.visitSync(this.listeners.OnceExit, root)
}
}
}
return this.result
}
then(onFulfilled, onRejected) {
if (process.env.NODE_ENV !== 'production') {
if (!('from' in this.opts)) {
warnOnce(
'Without `from` option PostCSS could generate wrong source map ' +
'and will not find Browserslist config. Set it to CSS file path ' +
'or to `undefined` to prevent this warning.'
)
}
}
return this.async().then(onFulfilled, onRejected)
}
toString() {
return this.css
}
visitSync(visitors, node) {
for (let [plugin, visitor] of visitors) {
this.result.lastPlugin = plugin
let promise
try {
promise = visitor(node, this.helpers)
} catch (e) {
throw this.handleError(e, node.proxyOf)
}
if (node.type !== 'root' && node.type !== 'document' && !node.parent) {
return true
}
if (isPromise(promise)) {
throw this.getAsyncError()
}
}
}
visitTick(stack) {
let visit = stack[stack.length - 1]
let { node, visitors } = visit
if (node.type !== 'root' && node.type !== 'document' && !node.parent) {
stack.pop()
return
}
if (visitors.length > 0 && visit.visitorIndex < visitors.length) {
let [plugin, visitor] = visitors[visit.visitorIndex]
visit.visitorIndex += 1
if (visit.visitorIndex === visitors.length) {
visit.visitors = []
visit.visitorIndex = 0
}
this.result.lastPlugin = plugin
try {
return visitor(node.toProxy(), this.helpers)
} catch (e) {
throw this.handleError(e, node)
}
}
if (visit.iterator !== 0) {
let iterator = visit.iterator
let child
while ((child = node.nodes[node.indexes[iterator]])) {
node.indexes[iterator] += 1
if (!child[isClean]) {
child[isClean] = true
stack.push(toStack(child))
return
}
}
visit.iterator = 0
delete node.indexes[iterator]
}
let events = visit.events
while (visit.eventIndex < events.length) {
let event = events[visit.eventIndex]
visit.eventIndex += 1
if (event === CHILDREN) {
if (node.nodes && node.nodes.length) {
node[isClean] = true
visit.iterator = node.getIterator()
}
return
} else if (this.listeners[event]) {
visit.visitors = this.listeners[event]
return
}
}
stack.pop()
}
walkSync(node) {
node[isClean] = true
let events = getEvents(node)
for (let event of events) {
if (event === CHILDREN) {
if (node.nodes) {
node.each(child => {
if (!child[isClean]) this.walkSync(child)
})
}
} else {
let visitors = this.listeners[event]
if (visitors) {
if (this.visitSync(visitors, node.toProxy())) return
}
}
}
}
warnings() {
return this.sync().warnings()
}
}
LazyResult.registerPostcss = dependant => {
postcss = dependant
}
module.exports = LazyResult
LazyResult.default = LazyResult
Root.registerLazyResult(LazyResult)
Document.registerLazyResult(LazyResult)
}).call(this)}).call(this,require('_process'))
},{"./container":11,"./document":14,"./map-generator":19,"./parse":22,"./result":27,"./root":28,"./stringify":31,"./symbols":32,"./warn-once":34,"_process":36}],18:[function(require,module,exports){
'use strict'
let list = {
comma(string) {
return list.split(string, [','], true)
},
space(string) {
let spaces = [' ', '\n', '\t']
return list.split(string, spaces)
},
split(string, separators, last) {
let array = []
let current = ''
let split = false
let func = 0
let inQuote = false
let prevQuote = ''
let escape = false
for (let letter of string) {
if (escape) {
escape = false
} else if (letter === '\\') {
escape = true
} else if (inQuote) {
if (letter === prevQuote) {
inQuote = false
}
} else if (letter === '"' || letter === "'") {
inQuote = true
prevQuote = letter
} else if (letter === '(') {
func += 1
} else if (letter === ')') {
if (func > 0) func -= 1
} else if (func === 0) {
if (separators.includes(letter)) split = true
}
if (split) {
if (current !== '') array.push(current.trim())
current = ''
split = false
} else {
current += letter
}
}
if (last || current !== '') array.push(current.trim())
return array
}
}
module.exports = list
list.default = list
},{}],19:[function(require,module,exports){
(function (Buffer){(function (){
'use strict'
let { SourceMapConsumer, SourceMapGenerator } = require('source-map-js')
let { dirname, relative, resolve, sep } = require('path')
let { pathToFileURL } = require('url')
let Input = require('./input')
let sourceMapAvailable = Boolean(SourceMapConsumer && SourceMapGenerator)
let pathAvailable = Boolean(dirname && resolve && relative && sep)
class MapGenerator {
constructor(stringify, root, opts, cssString) {
this.stringify = stringify
this.mapOpts = opts.map || {}
this.root = root
this.opts = opts
this.css = cssString
this.usesFileUrls = !this.mapOpts.from && this.mapOpts.absolute
}
addAnnotation() {
let content
if (this.isInline()) {
content =
'data:application/json;base64,' + this.toBase64(this.map.toString())
} else if (typeof this.mapOpts.annotation === 'string') {
content = this.mapOpts.annotation
} else if (typeof this.mapOpts.annotation === 'function') {
content = this.mapOpts.annotation(this.opts.to, this.root)
} else {
content = this.outputFile() + '.map'
}
let eol = '\n'
if (this.css.includes('\r\n')) eol = '\r\n'
this.css += eol + '/*# sourceMappingURL=' + content + ' */'
}
applyPrevMaps() {
for (let prev of this.previous()) {
let from = this.toUrl(this.path(prev.file))
let root = prev.root || dirname(prev.file)
let map
if (this.mapOpts.sourcesContent === false) {
map = new SourceMapConsumer(prev.text)
if (map.sourcesContent) {
map.sourcesContent = map.sourcesContent.map(() => null)
}
} else {
map = prev.consumer()
}
this.map.applySourceMap(map, from, this.toUrl(this.path(root)))
}
}
clearAnnotation() {
if (this.mapOpts.annotation === false) return
if (this.root) {
let node
for (let i = this.root.nodes.length - 1; i >= 0; i--) {
node = this.root.nodes[i]
if (node.type !== 'comment') continue
if (node.text.indexOf('# sourceMappingURL=') === 0) {
this.root.removeChild(i)
}
}
} else if (this.css) {
this.css = this.css.replace(/(\n)?\/\*#[\S\s]*?\*\/$/gm, '')
}
}
generate() {
this.clearAnnotation()
if (pathAvailable && sourceMapAvailable && this.isMap()) {
return this.generateMap()
} else {
let result = ''
this.stringify(this.root, i => {
result += i
})
return [result]
}
}
generateMap() {
if (this.root) {
this.generateString()
} else if (this.previous().length === 1) {
let prev = this.previous()[0].consumer()
prev.file = this.outputFile()
this.map = SourceMapGenerator.fromSourceMap(prev)
} else {
this.map = new SourceMapGenerator({ file: this.outputFile() })
this.map.addMapping({
generated: { column: 0, line: 1 },
original: { column: 0, line: 1 },
source: this.opts.from
? this.toUrl(this.path(this.opts.from))
: '<no source>'
})
}
if (this.isSourcesContent()) this.setSourcesContent()
if (this.root && this.previous().length > 0) this.applyPrevMaps()
if (this.isAnnotation()) this.addAnnotation()
if (this.isInline()) {
return [this.css]
} else {
return [this.css, this.map]
}
}
generateString() {
this.css = ''
this.map = new SourceMapGenerator({ file: this.outputFile() })
let line = 1
let column = 1
let noSource = '<no source>'
let mapping = {
generated: { column: 0, line: 0 },
original: { column: 0, line: 0 },
source: ''
}
let lines, last
this.stringify(this.root, (str, node, type) => {
this.css += str
if (node && type !== 'end') {
mapping.generated.line = line
mapping.generated.column = column - 1
if (node.source && node.source.start) {
mapping.source = this.sourcePath(node)
mapping.original.line = node.source.start.line
mapping.original.column = node.source.start.column - 1
this.map.addMapping(mapping)
} else {
mapping.source = noSource
mapping.original.line = 1
mapping.original.column = 0
this.map.addMapping(mapping)
}
}
lines = str.match(/\n/g)
if (lines) {
line += lines.length
last = str.lastIndexOf('\n')
column = str.length - last
} else {
column += str.length
}
if (node && type !== 'start') {
let p = node.parent || { raws: {} }
let childless =
node.type === 'decl' || (node.type === 'atrule' && !node.nodes)
if (!childless || node !== p.last || p.raws.semicolon) {
if (node.source && node.source.end) {
mapping.source = this.sourcePath(node)
mapping.original.line = node.source.end.line
mapping.original.column = node.source.end.column - 1
mapping.generated.line = line
mapping.generated.column = column - 2
this.map.addMapping(mapping)
} else {
mapping.source = noSource
mapping.original.line = 1
mapping.original.column = 0
mapping.generated.line = line
mapping.generated.column = column - 1
this.map.addMapping(mapping)
}
}
}
})
}
isAnnotation() {
if (this.isInline()) {
return true
}
if (typeof this.mapOpts.annotation !== 'undefined') {
return this.mapOpts.annotation
}
if (this.previous().length) {
return this.previous().some(i => i.annotation)
}
return true
}
isInline() {
if (typeof this.mapOpts.inline !== 'undefined') {
return this.mapOpts.inline
}
let annotation = this.mapOpts.annotation
if (typeof annotation !== 'undefined' && annotation !== true) {
return false
}
if (this.previous().length) {
return this.previous().some(i => i.inline)
}
return true
}
isMap() {
if (typeof this.opts.map !== 'undefined') {
return !!this.opts.map
}
return this.previous().length > 0
}
isSourcesContent() {
if (typeof this.mapOpts.sourcesContent !== 'undefined') {
return this.mapOpts.sourcesContent
}
if (this.previous().length) {
return this.previous().some(i => i.withContent())
}
return true
}
outputFile() {
if (this.opts.to) {
return this.path(this.opts.to)
} else if (this.opts.from) {
return this.path(this.opts.from)
} else {
return 'to.css'
}
}
path(file) {
if (file.indexOf('<') === 0) return file
if (/^\w+:\/\//.test(file)) return file
if (this.mapOpts.absolute) return file
let from = this.opts.to ? dirname(this.opts.to) : '.'
if (typeof this.mapOpts.annotation === 'string') {
from = dirname(resolve(from, this.mapOpts.annotation))
}
file = relative(from, file)
return file
}
previous() {
if (!this.previousMaps) {
this.previousMaps = []
if (this.root) {
this.root.walk(node => {
if (node.source && node.source.input.map) {
let map = node.source.input.map
if (!this.previousMaps.includes(map)) {
this.previousMaps.push(map)
}
}
})
} else {
let input = new Input(this.css, this.opts)
if (input.map) this.previousMaps.push(input.map)
}
}
return this.previousMaps
}
setSourcesContent() {
let already = {}
if (this.root) {
this.root.walk(node => {
if (node.source) {
let from = node.source.input.from
if (from && !already[from]) {
already[from] = true
let fromUrl = this.usesFileUrls
? this.toFileUrl(from)
: this.toUrl(this.path(from))
this.map.setSourceContent(fromUrl, node.source.input.css)
}
}
})
} else if (this.css) {
let from = this.opts.from
? this.toUrl(this.path(this.opts.from))
: '<no source>'
this.map.setSourceContent(from, this.css)
}
}
sourcePath(node) {
if (this.mapOpts.from) {
return this.toUrl(this.mapOpts.from)
} else if (this.usesFileUrls) {
return this.toFileUrl(node.source.input.from)
} else {
return this.toUrl(this.path(node.source.input.from))
}
}
toBase64(str) {
if (Buffer) {
return Buffer.from(str).toString('base64')
} else {
return window.btoa(unescape(encodeURIComponent(str)))
}
}
toFileUrl(path) {
if (pathToFileURL) {
return pathToFileURL(path).toString()
} else {
throw new Error(
'`map.absolute` option is not available in this PostCSS build'
)
}
}
toUrl(path) {
if (sep === '\\') {
path = path.replace(/\\/g, '/')
}
return encodeURI(path).replace(/[#?]/g, encodeURIComponent)
}
}
module.exports = MapGenerator
}).call(this)}).call(this,require("buffer").Buffer)
},{"./input":16,"buffer":3,"path":2,"source-map-js":2,"url":2}],20:[function(require,module,exports){
(function (process){(function (){
'use strict'
let MapGenerator = require('./map-generator')
let stringify = require('./stringify')
let warnOnce = require('./warn-once')
let parse = require('./parse')
const Result = require('./result')
class NoWorkResult {
constructor(processor, css, opts) {
css = css.toString()
this.stringified = false
this._processor = processor
this._css = css
this._opts = opts
this._map = undefined
let root
let str = stringify
this.result = new Result(this._processor, root, this._opts)
this.result.css = css
let self = this
Object.defineProperty(this.result, 'root', {
get() {
return self.root
}
})
let map = new MapGenerator(str, root, this._opts, css)
if (map.isMap()) {
let [generatedCSS, generatedMap] = map.generate()
if (generatedCSS) {
this.result.css = generatedCSS
}
if (generatedMap) {
this.result.map = generatedMap
}
}
}
async() {
if (this.error) return Promise.reject(this.error)
return Promise.resolve(this.result)
}
catch(onRejected) {
return this.async().catch(onRejected)
}
get content() {
return this.result.css
}
get css() {
return this.result.css
}
finally(onFinally) {
return this.async().then(onFinally, onFinally)
}
get map() {
return this.result.map
}
get messages() {
return []
}
get opts() {
return this.result.opts
}
get processor() {
return this.result.processor
}
get root() {
if (this._root) {
return this._root
}
let root
let parser = parse
try {
root = parser(this._css, this._opts)
} catch (error) {
this.error = error
}
if (this.error) {
throw this.error
} else {
this._root = root
return root
}
}
get [Symbol.toStringTag]() {
return 'NoWorkResult'
}
sync() {
if (this.error) throw this.error
return this.result
}
then(onFulfilled, onRejected) {
if (process.env.NODE_ENV !== 'production') {
if (!('from' in this._opts)) {
warnOnce(
'Without `from` option PostCSS could generate wrong source map ' +
'and will not find Browserslist config. Set it to CSS file path ' +
'or to `undefined` to prevent this warning.'
)
}
}
return this.async().then(onFulfilled, onRejected)
}
toString() {
return this._css
}
warnings() {
return []
}
}
module.exports = NoWorkResult
NoWorkResult.default = NoWorkResult
}).call(this)}).call(this,require('_process'))
},{"./map-generator":19,"./parse":22,"./result":27,"./stringify":31,"./warn-once":34,"_process":36}],21:[function(require,module,exports){
'use strict'
let { isClean, my } = require('./symbols')
let CssSyntaxError = require('./css-syntax-error')
let Stringifier = require('./stringifier')
let stringify = require('./stringify')
function cloneNode(obj, parent) {
let cloned = new obj.constructor()
for (let i in obj) {
if (!Object.prototype.hasOwnProperty.call(obj, i)) {
/* c8 ignore next 2 */
continue
}
if (i === 'proxyCache') continue
let value = obj[i]
let type = typeof value
if (i === 'parent' && type === 'object') {
if (parent) cloned[i] = parent
} else if (i === 'source') {
cloned[i] = value
} else if (Array.isArray(value)) {
cloned[i] = value.map(j => cloneNode(j, cloned))
} else {
if (type === 'object' && value !== null) value = cloneNode(value)
cloned[i] = value
}
}
return cloned
}
class Node {
constructor(defaults = {}) {
this.raws = {}
this[isClean] = false
this[my] = true
for (let name in defaults) {
if (name === 'nodes') {
this.nodes = []
for (let node of defaults[name]) {
if (typeof node.clone === 'function') {
this.append(node.clone())
} else {
this.append(node)
}
}
} else {
this[name] = defaults[name]
}
}
}
addToError(error) {
error.postcssNode = this
if (error.stack && this.source && /\n\s{4}at /.test(error.stack)) {
let s = this.source
error.stack = error.stack.replace(
/\n\s{4}at /,
`$&${s.input.from}:${s.start.line}:${s.start.column}$&`
)
}
return error
}
after(add) {
this.parent.insertAfter(this, add)
return this
}
assign(overrides = {}) {
for (let name in overrides) {
this[name] = overrides[name]
}
return this
}
before(add) {
this.parent.insertBefore(this, add)
return this
}
cleanRaws(keepBetween) {
delete this.raws.before
delete this.raws.after
if (!keepBetween) delete this.raws.between
}
clone(overrides = {}) {
let cloned = cloneNode(this)
for (let name in overrides) {
cloned[name] = overrides[name]
}
return cloned
}
cloneAfter(overrides = {}) {
let cloned = this.clone(overrides)
this.parent.insertAfter(this, cloned)
return cloned
}
cloneBefore(overrides = {}) {
let cloned = this.clone(overrides)
this.parent.insertBefore(this, cloned)
return cloned
}
error(message, opts = {}) {
if (this.source) {
let { end, start } = this.rangeBy(opts)
return this.source.input.error(
message,
{ column: start.column, line: start.line },
{ column: end.column, line: end.line },
opts
)
}
return new CssSyntaxError(message)
}
getProxyProcessor() {
return {
get(node, prop) {
if (prop === 'proxyOf') {
return node
} else if (prop === 'root') {
return () => node.root().toProxy()
} else {
return node[prop]
}
},
set(node, prop, value) {
if (node[prop] === value) return true
node[prop] = value
if (
prop === 'prop' ||
prop === 'value' ||
prop === 'name' ||
prop === 'params' ||
prop === 'important' ||
/* c8 ignore next */
prop === 'text'
) {
node.markDirty()
}
return true
}
}
}
markDirty() {
if (this[isClean]) {
this[isClean] = false
let next = this
while ((next = next.parent)) {
next[isClean] = false
}
}
}
next() {
if (!this.parent) return undefined
let index = this.parent.index(this)
return this.parent.nodes[index + 1]
}
positionBy(opts, stringRepresentation) {
let pos = this.source.start
if (opts.index) {
pos = this.positionInside(opts.index, stringRepresentation)
} else if (opts.word) {
stringRepresentation = this.toString()
let index = stringRepresentation.indexOf(opts.word)
if (index !== -1) pos = this.positionInside(index, stringRepresentation)
}
return pos
}
positionInside(index, stringRepresentation) {
let string = stringRepresentation || this.toString()
let column = this.source.start.column
let line = this.source.start.line
for (let i = 0; i < index; i++) {
if (string[i] === '\n') {
column = 1
line += 1
} else {
column += 1
}
}
return { column, line }
}
prev() {
if (!this.parent) return undefined
let index = this.parent.index(this)
return this.parent.nodes[index - 1]
}
get proxyOf() {
return this
}
rangeBy(opts) {
let start = {
column: this.source.start.column,
line: this.source.start.line
}
let end = this.source.end
? {
column: this.source.end.column + 1,
line: this.source.end.line
}
: {
column: start.column + 1,
line: start.line
}
if (opts.word) {
let stringRepresentation = this.toString()
let index = stringRepresentation.indexOf(opts.word)
if (index !== -1) {
start = this.positionInside(index, stringRepresentation)
end = this.positionInside(index + opts.word.length, stringRepresentation)
}
} else {
if (opts.start) {
start = {
column: opts.start.column,
line: opts.start.line
}
} else if (opts.index) {
start = this.positionInside(opts.index)
}
if (opts.end) {
end = {
column: opts.end.column,
line: opts.end.line
}
} else if (opts.endIndex) {
end = this.positionInside(opts.endIndex)
} else if (opts.index) {
end = this.positionInside(opts.index + 1)
}
}
if (
end.line < start.line ||
(end.line === start.line && end.column <= start.column)
) {
end = { column: start.column + 1, line: start.line }
}
return { end, start }
}
raw(prop, defaultType) {
let str = new Stringifier()
return str.raw(this, prop, defaultType)
}
remove() {
if (this.parent) {
this.parent.removeChild(this)
}
this.parent = undefined
return this
}
replaceWith(...nodes) {
if (this.parent) {
let bookmark = this
let foundSelf = false
for (let node of nodes) {
if (node === this) {
foundSelf = true
} else if (foundSelf) {
this.parent.insertAfter(bookmark, node)
bookmark = node
} else {
this.parent.insertBefore(bookmark, node)
}
}
if (!foundSelf) {
this.remove()
}
}
return this
}
root() {
let result = this
while (result.parent && result.parent.type !== 'document') {
result = result.parent
}
return result
}
toJSON(_, inputs) {
let fixed = {}
let emitInputs = inputs == null
inputs = inputs || new Map()
let inputsNextIndex = 0
for (let name in this) {
if (!Object.prototype.hasOwnProperty.call(this, name)) {
/* c8 ignore next 2 */
continue
}
if (name === 'parent' || name === 'proxyCache') continue
let value = this[name]
if (Array.isArray(value)) {
fixed[name] = value.map(i => {
if (typeof i === 'object' && i.toJSON) {
return i.toJSON(null, inputs)
} else {
return i
}
})
} else if (typeof value === 'object' && value.toJSON) {
fixed[name] = value.toJSON(null, inputs)
} else if (name === 'source') {
let inputId = inputs.get(value.input)
if (inputId == null) {
inputId = inputsNextIndex
inputs.set(value.input, inputsNextIndex)
inputsNextIndex++
}
fixed[name] = {
end: value.end,
inputId,
start: value.start
}
} else {
fixed[name] = value
}
}
if (emitInputs) {
fixed.inputs = [...inputs.keys()].map(input => input.toJSON())
}
return fixed
}
toProxy() {
if (!this.proxyCache) {
this.proxyCache = new Proxy(this, this.getProxyProcessor())
}
return this.proxyCache
}
toString(stringifier = stringify) {
if (stringifier.stringify) stringifier = stringifier.stringify
let result = ''
stringifier(this, i => {
result += i
})
return result
}
warn(result, text, opts) {
let data = { node: this }
for (let i in opts) data[i] = opts[i]
return result.warn(text, data)
}
}
module.exports = Node
Node.default = Node
},{"./css-syntax-error":12,"./stringifier":30,"./stringify":31,"./symbols":32}],22:[function(require,module,exports){
(function (process){(function (){
'use strict'
let Container = require('./container')
let Parser = require('./parser')
let Input = require('./input')
function parse(css, opts) {
let input = new Input(css, opts)
let parser = new Parser(input)
try {
parser.parse()
} catch (e) {
if (process.env.NODE_ENV !== 'production') {
if (e.name === 'CssSyntaxError' && opts && opts.from) {
if (/\.scss$/i.test(opts.from)) {
e.message +=
'\nYou tried to parse SCSS with ' +
'the standard CSS parser; ' +
'try again with the postcss-scss parser'
} else if (/\.sass/i.test(opts.from)) {
e.message +=
'\nYou tried to parse Sass with ' +
'the standard CSS parser; ' +
'try again with the postcss-sass parser'
} else if (/\.less$/i.test(opts.from)) {
e.message +=
'\nYou tried to parse Less with ' +
'the standard CSS parser; ' +
'try again with the postcss-less parser'
}
}
}
throw e
}
return parser.root
}
module.exports = parse
parse.default = parse
Container.registerParse(parse)
}).call(this)}).call(this,require('_process'))
},{"./container":11,"./input":16,"./parser":23,"_process":36}],23:[function(require,module,exports){
'use strict'
let Declaration = require('./declaration')
let tokenizer = require('./tokenize')
let Comment = require('./comment')
let AtRule = require('./at-rule')
let Root = require('./root')
let Rule = require('./rule')
const SAFE_COMMENT_NEIGHBOR = {
empty: true,
space: true
}
function findLastWithPosition(tokens) {
for (let i = tokens.length - 1; i >= 0; i--) {
let token = tokens[i]
let pos = token[3] || token[2]
if (pos) return pos
}
}
class Parser {
constructor(input) {
this.input = input
this.root = new Root()
this.current = this.root
this.spaces = ''
this.semicolon = false
this.customProperty = false
this.createTokenizer()
this.root.source = { input, start: { column: 1, line: 1, offset: 0 } }
}
atrule(token) {
let node = new AtRule()
node.name = token[1].slice(1)
if (node.name === '') {
this.unnamedAtrule(node, token)
}
this.init(node, token[2])
let type
let prev
let shift
let last = false
let open = false
let params = []
let brackets = []
while (!this.tokenizer.endOfFile()) {
token = this.tokenizer.nextToken()
type = token[0]
if (type === '(' || type === '[') {
brackets.push(type === '(' ? ')' : ']')
} else if (type === '{' && brackets.length > 0) {
brackets.push('}')
} else if (type === brackets[brackets.length - 1]) {
brackets.pop()
}
if (brackets.length === 0) {
if (type === ';') {
node.source.end = this.getPosition(token[2])
this.semicolon = true
break
} else if (type === '{') {
open = true
break
} else if (type === '}') {
if (params.length > 0) {
shift = params.length - 1
prev = params[shift]
while (prev && prev[0] === 'space') {
prev = params[--shift]
}
if (prev) {
node.source.end = this.getPosition(prev[3] || prev[2])
}
}
this.end(token)
break
} else {
params.push(token)
}
} else {
params.push(token)
}
if (this.tokenizer.endOfFile()) {
last = true
break
}
}
node.raws.between = this.spacesAndCommentsFromEnd(params)
if (params.length) {
node.raws.afterName = this.spacesAndCommentsFromStart(params)
this.raw(node, 'params', params)
if (last) {
token = params[params.length - 1]
node.source.end = this.getPosition(token[3] || token[2])
this.spaces = node.raws.between
node.raws.between = ''
}
} else {
node.raws.afterName = ''
node.params = ''
}
if (open) {
node.nodes = []
this.current = node
}
}
checkMissedSemicolon(tokens) {
let colon = this.colon(tokens)
if (colon === false) return
let founded = 0
let token
for (let j = colon - 1; j >= 0; j--) {
token = tokens[j]
if (token[0] !== 'space') {
founded += 1
if (founded === 2) break
}
}
// If the token is a word, e.g. `!important`, `red` or any other valid property's value.
// Then we need to return the colon after that word token. [3] is the "end" colon of that word.
// And because we need it after that one we do +1 to get the next one.
throw this.input.error(
'Missed semicolon',
token[0] === 'word' ? token[3] + 1 : token[2]
)
}
colon(tokens) {
let brackets = 0
let token, type, prev
for (let [i, element] of tokens.entries()) {
token = element
type = token[0]
if (type === '(') {
brackets += 1
}
if (type === ')') {
brackets -= 1
}
if (brackets === 0 && type === ':') {
if (!prev) {
this.doubleColon(token)
} else if (prev[0] === 'word' && prev[1] === 'progid') {
continue
} else {
return i
}
}
prev = token
}
return false
}
comment(token) {
let node = new Comment()
this.init(node, token[2])
node.source.end = this.getPosition(token[3] || token[2])
let text = token[1].slice(2, -2)
if (/^\s*$/.test(text)) {
node.text = ''
node.raws.left = text
node.raws.right = ''
} else {
let match = text.match(/^(\s*)([^]*\S)(\s*)$/)
node.text = match[2]
node.raws.left = match[1]
node.raws.right = match[3]
}
}
createTokenizer() {
this.tokenizer = tokenizer(this.input)
}
decl(tokens, customProperty) {
let node = new Declaration()
this.init(node, tokens[0][2])
let last = tokens[tokens.length - 1]
if (last[0] === ';') {
this.semicolon = true
tokens.pop()
}
node.source.end = this.getPosition(
last[3] || last[2] || findLastWithPosition(tokens)
)
while (tokens[0][0] !== 'word') {
if (tokens.length === 1) this.unknownWord(tokens)
node.raws.before += tokens.shift()[1]
}
node.source.start = this.getPosition(tokens[0][2])
node.prop = ''
while (tokens.length) {
let type = tokens[0][0]
if (type === ':' || type === 'space' || type === 'comment') {
break
}
node.prop += tokens.shift()[1]
}
node.raws.between = ''
let token
while (tokens.length) {
token = tokens.shift()
if (token[0] === ':') {
node.raws.between += token[1]
break
} else {
if (token[0] === 'word' && /\w/.test(token[1])) {
this.unknownWord([token])
}
node.raws.between += token[1]
}
}
if (node.prop[0] === '_' || node.prop[0] === '*') {
node.raws.before += node.prop[0]
node.prop = node.prop.slice(1)
}
let firstSpaces = []
let next
while (tokens.length) {
next = tokens[0][0]
if (next !== 'space' && next !== 'comment') break
firstSpaces.push(tokens.shift())
}
this.precheckMissedSemicolon(tokens)
for (let i = tokens.length - 1; i >= 0; i--) {
token = tokens[i]
if (token[1].toLowerCase() === '!important') {
node.important = true
let string = this.stringFrom(tokens, i)
string = this.spacesFromEnd(tokens) + string
if (string !== ' !important') node.raws.important = string
break
} else if (token[1].toLowerCase() === 'important') {
let cache = tokens.slice(0)
let str = ''
for (let j = i; j > 0; j--) {
let type = cache[j][0]
if (str.trim().indexOf('!') === 0 && type !== 'space') {
break
}
str = cache.pop()[1] + str
}
if (str.trim().indexOf('!') === 0) {
node.important = true
node.raws.important = str
tokens = cache
}
}
if (token[0] !== 'space' && token[0] !== 'comment') {
break
}
}
let hasWord = tokens.some(i => i[0] !== 'space' && i[0] !== 'comment')
if (hasWord) {
node.raws.between += firstSpaces.map(i => i[1]).join('')
firstSpaces = []
}
this.raw(node, 'value', firstSpaces.concat(tokens), customProperty)
if (node.value.includes(':') && !customProperty) {
this.checkMissedSemicolon(tokens)
}
}
doubleColon(token) {
throw this.input.error(
'Double colon',
{ offset: token[2] },
{ offset: token[2] + token[1].length }
)
}
emptyRule(token) {
let node = new Rule()
this.init(node, token[2])
node.selector = ''
node.raws.between = ''
this.current = node
}
end(token) {
if (this.current.nodes && this.current.nodes.length) {
this.current.raws.semicolon = this.semicolon
}
this.semicolon = false
this.current.raws.after = (this.current.raws.after || '') + this.spaces
this.spaces = ''
if (this.current.parent) {
this.current.source.end = this.getPosition(token[2])
this.current = this.current.parent
} else {
this.unexpectedClose(token)
}
}
endFile() {
if (this.current.parent) this.unclosedBlock()
if (this.current.nodes && this.current.nodes.length) {
this.current.raws.semicolon = this.semicolon
}
this.current.raws.after = (this.current.raws.after || '') + this.spaces
}
freeSemicolon(token) {
this.spaces += token[1]
if (this.current.nodes) {
let prev = this.current.nodes[this.current.nodes.length - 1]
if (prev && prev.type === 'rule' && !prev.raws.ownSemicolon) {
prev.raws.ownSemicolon = this.spaces
this.spaces = ''
}
}
}
// Helpers
getPosition(offset) {
let pos = this.input.fromOffset(offset)
return {
column: pos.col,
line: pos.line,
offset
}
}
init(node, offset) {
this.current.push(node)
node.source = {
input: this.input,
start: this.getPosition(offset)
}
node.raws.before = this.spaces
this.spaces = ''
if (node.type !== 'comment') this.semicolon = false
}
other(start) {
let end = false
let type = null
let colon = false
let bracket = null
let brackets = []
let customProperty = start[1].startsWith('--')
let tokens = []
let token = start
while (token) {
type = token[0]
tokens.push(token)
if (type === '(' || type === '[') {
if (!bracket) bracket = token
brackets.push(type === '(' ? ')' : ']')
} else if (customProperty && colon && type === '{') {
if (!bracket) bracket = token
brackets.push('}')
} else if (brackets.length === 0) {
if (type === ';') {
if (colon) {
this.decl(tokens, customProperty)
return
} else {
break
}
} else if (type === '{') {
this.rule(tokens)
return
} else if (type === '}') {
this.tokenizer.back(tokens.pop())
end = true
break
} else if (type === ':') {
colon = true
}
} else if (type === brackets[brackets.length - 1]) {
brackets.pop()
if (brackets.length === 0) bracket = null
}
token = this.tokenizer.nextToken()
}
if (this.tokenizer.endOfFile()) end = true
if (brackets.length > 0) this.unclosedBracket(bracket)
if (end && colon) {
if (!customProperty) {
while (tokens.length) {
token = tokens[tokens.length - 1][0]
if (token !== 'space' && token !== 'comment') break
this.tokenizer.back(tokens.pop())
}
}
this.decl(tokens, customProperty)
} else {
this.unknownWord(tokens)
}
}
parse() {
let token
while (!this.tokenizer.endOfFile()) {
token = this.tokenizer.nextToken()
switch (token[0]) {
case 'space':
this.spaces += token[1]
break
case ';':
this.freeSemicolon(token)
break
case '}':
this.end(token)
break
case 'comment':
this.comment(token)
break
case 'at-word':
this.atrule(token)
break
case '{':
this.emptyRule(token)
break
default:
this.other(token)
break
}
}
this.endFile()
}
precheckMissedSemicolon(/* tokens */) {
// Hook for Safe Parser
}
raw(node, prop, tokens, customProperty) {
let token, type
let length = tokens.length
let value = ''
let clean = true
let next, prev
for (let i = 0; i < length; i += 1) {
token = tokens[i]
type = token[0]
if (type === 'space' && i === length - 1 && !customProperty) {
clean = false
} else if (type === 'comment') {
prev = tokens[i - 1] ? tokens[i - 1][0] : 'empty'
next = tokens[i + 1] ? tokens[i + 1][0] : 'empty'
if (!SAFE_COMMENT_NEIGHBOR[prev] && !SAFE_COMMENT_NEIGHBOR[next]) {
if (value.slice(-1) === ',') {
clean = false
} else {
value += token[1]
}
} else {
clean = false
}
} else {
value += token[1]
}
}
if (!clean) {
let raw = tokens.reduce((all, i) => all + i[1], '')
node.raws[prop] = { raw, value }
}
node[prop] = value
}
rule(tokens) {
tokens.pop()
let node = new Rule()
this.init(node, tokens[0][2])
node.raws.between = this.spacesAndCommentsFromEnd(tokens)
this.raw(node, 'selector', tokens)
this.current = node
}
spacesAndCommentsFromEnd(tokens) {
let lastTokenType
let spaces = ''
while (tokens.length) {
lastTokenType = tokens[tokens.length - 1][0]
if (lastTokenType !== 'space' && lastTokenType !== 'comment') break
spaces = tokens.pop()[1] + spaces
}
return spaces
}
// Errors
spacesAndCommentsFromStart(tokens) {
let next
let spaces = ''
while (tokens.length) {
next = tokens[0][0]
if (next !== 'space' && next !== 'comment') break
spaces += tokens.shift()[1]
}
return spaces
}
spacesFromEnd(tokens) {
let lastTokenType
let spaces = ''
while (tokens.length) {
lastTokenType = tokens[tokens.length - 1][0]
if (lastTokenType !== 'space') break
spaces = tokens.pop()[1] + spaces
}
return spaces
}
stringFrom(tokens, from) {
let result = ''
for (let i = from; i < tokens.length; i++) {
result += tokens[i][1]
}
tokens.splice(from, tokens.length - from)
return result
}
unclosedBlock() {
let pos = this.current.source.start
throw this.input.error('Unclosed block', pos.line, pos.column)
}
unclosedBracket(bracket) {
throw this.input.error(
'Unclosed bracket',
{ offset: bracket[2] },
{ offset: bracket[2] + 1 }
)
}
unexpectedClose(token) {
throw this.input.error(
'Unexpected }',
{ offset: token[2] },
{ offset: token[2] + 1 }
)
}
unknownWord(tokens) {
throw this.input.error(
'Unknown word',
{ offset: tokens[0][2] },
{ offset: tokens[0][2] + tokens[0][1].length }
)
}
unnamedAtrule(node, token) {
throw this.input.error(
'At-rule without name',
{ offset: token[2] },
{ offset: token[2] + token[1].length }
)
}
}
module.exports = Parser
},{"./at-rule":9,"./comment":10,"./declaration":13,"./root":28,"./rule":29,"./tokenize":33}],24:[function(require,module,exports){
(function (process){(function (){
'use strict'
let CssSyntaxError = require('./css-syntax-error')
let Declaration = require('./declaration')
let LazyResult = require('./lazy-result')
let Container = require('./container')
let Processor = require('./processor')
let stringify = require('./stringify')
let fromJSON = require('./fromJSON')
let Document = require('./document')
let Warning = require('./warning')
let Comment = require('./comment')
let AtRule = require('./at-rule')
let Result = require('./result.js')
let Input = require('./input')
let parse = require('./parse')
let list = require('./list')
let Rule = require('./rule')
let Root = require('./root')
let Node = require('./node')
function postcss(...plugins) {
if (plugins.length === 1 && Array.isArray(plugins[0])) {
plugins = plugins[0]
}
return new Processor(plugins)
}
postcss.plugin = function plugin(name, initializer) {
let warningPrinted = false
function creator(...args) {
// eslint-disable-next-line no-console
if (console && console.warn && !warningPrinted) {
warningPrinted = true
// eslint-disable-next-line no-console
console.warn(
name +
': postcss.plugin was deprecated. Migration guide:\n' +
'https://evilmartians.com/chronicles/postcss-8-plugin-migration'
)
if (process.env.LANG && process.env.LANG.startsWith('cn')) {
/* c8 ignore next 7 */
// eslint-disable-next-line no-console
console.warn(
name +
': 里面 postcss.plugin 被弃用. 迁移指南:\n' +
'https://www.w3ctech.com/topic/2226'
)
}
}
let transformer = initializer(...args)
transformer.postcssPlugin = name
transformer.postcssVersion = new Processor().version
return transformer
}
let cache
Object.defineProperty(creator, 'postcss', {
get() {
if (!cache) cache = creator()
return cache
}
})
creator.process = function (css, processOpts, pluginOpts) {
return postcss([creator(pluginOpts)]).process(css, processOpts)
}
return creator
}
postcss.stringify = stringify
postcss.parse = parse
postcss.fromJSON = fromJSON
postcss.list = list
postcss.comment = defaults => new Comment(defaults)
postcss.atRule = defaults => new AtRule(defaults)
postcss.decl = defaults => new Declaration(defaults)
postcss.rule = defaults => new Rule(defaults)
postcss.root = defaults => new Root(defaults)
postcss.document = defaults => new Document(defaults)
postcss.CssSyntaxError = CssSyntaxError
postcss.Declaration = Declaration
postcss.Container = Container
postcss.Processor = Processor
postcss.Document = Document
postcss.Comment = Comment
postcss.Warning = Warning
postcss.AtRule = AtRule
postcss.Result = Result
postcss.Input = Input
postcss.Rule = Rule
postcss.Root = Root
postcss.Node = Node
LazyResult.registerPostcss(postcss)
module.exports = postcss
postcss.default = postcss
}).call(this)}).call(this,require('_process'))
},{"./at-rule":9,"./comment":10,"./container":11,"./css-syntax-error":12,"./declaration":13,"./document":14,"./fromJSON":15,"./input":16,"./lazy-result":17,"./list":18,"./node":21,"./parse":22,"./processor":26,"./result.js":27,"./root":28,"./rule":29,"./stringify":31,"./warning":35,"_process":36}],25:[function(require,module,exports){
(function (Buffer){(function (){
'use strict'
let { SourceMapConsumer, SourceMapGenerator } = require('source-map-js')
let { existsSync, readFileSync } = require('fs')
let { dirname, join } = require('path')
function fromBase64(str) {
if (Buffer) {
return Buffer.from(str, 'base64').toString()
} else {
/* c8 ignore next 2 */
return window.atob(str)
}
}
class PreviousMap {
constructor(css, opts) {
if (opts.map === false) return
this.loadAnnotation(css)
this.inline = this.startWith(this.annotation, 'data:')
let prev = opts.map ? opts.map.prev : undefined
let text = this.loadMap(opts.from, prev)
if (!this.mapFile && opts.from) {
this.mapFile = opts.from
}
if (this.mapFile) this.root = dirname(this.mapFile)
if (text) this.text = text
}
consumer() {
if (!this.consumerCache) {
this.consumerCache = new SourceMapConsumer(this.text)
}
return this.consumerCache
}
decodeInline(text) {
let baseCharsetUri = /^data:application\/json;charset=utf-?8;base64,/
let baseUri = /^data:application\/json;base64,/
let charsetUri = /^data:application\/json;charset=utf-?8,/
let uri = /^data:application\/json,/
if (charsetUri.test(text) || uri.test(text)) {
return decodeURIComponent(text.substr(RegExp.lastMatch.length))
}
if (baseCharsetUri.test(text) || baseUri.test(text)) {
return fromBase64(text.substr(RegExp.lastMatch.length))
}
let encoding = text.match(/data:application\/json;([^,]+),/)[1]
throw new Error('Unsupported source map encoding ' + encoding)
}
getAnnotationURL(sourceMapString) {
return sourceMapString.replace(/^\/\*\s*# sourceMappingURL=/, '').trim()
}
isMap(map) {
if (typeof map !== 'object') return false
return (
typeof map.mappings === 'string' ||
typeof map._mappings === 'string' ||
Array.isArray(map.sections)
)
}
loadAnnotation(css) {
let comments = css.match(/\/\*\s*# sourceMappingURL=/gm)
if (!comments) return
// sourceMappingURLs from comments, strings, etc.
let start = css.lastIndexOf(comments.pop())
let end = css.indexOf('*/', start)
if (start > -1 && end > -1) {
// Locate the last sourceMappingURL to avoid pickin
this.annotation = this.getAnnotationURL(css.substring(start, end))
}
}
loadFile(path) {
this.root = dirname(path)
if (existsSync(path)) {
this.mapFile = path
return readFileSync(path, 'utf-8').toString().trim()
}
}
loadMap(file, prev) {
if (prev === false) return false
if (prev) {
if (typeof prev === 'string') {
return prev
} else if (typeof prev === 'function') {
let prevPath = prev(file)
if (prevPath) {
let map = this.loadFile(prevPath)
if (!map) {
throw new Error(
'Unable to load previous source map: ' + prevPath.toString()
)
}
return map
}
} else if (prev instanceof SourceMapConsumer) {
return SourceMapGenerator.fromSourceMap(prev).toString()
} else if (prev instanceof SourceMapGenerator) {
return prev.toString()
} else if (this.isMap(prev)) {
return JSON.stringify(prev)
} else {
throw new Error(
'Unsupported previous source map format: ' + prev.toString()
)
}
} else if (this.inline) {
return this.decodeInline(this.annotation)
} else if (this.annotation) {
let map = this.annotation
if (file) map = join(dirname(file), map)
return this.loadFile(map)
}
}
startWith(string, start) {
if (!string) return false
return string.substr(0, start.length) === start
}
withContent() {
return !!(
this.consumer().sourcesContent &&
this.consumer().sourcesContent.length > 0
)
}
}
module.exports = PreviousMap
PreviousMap.default = PreviousMap
}).call(this)}).call(this,require("buffer").Buffer)
},{"buffer":3,"fs":2,"path":2,"source-map-js":2}],26:[function(require,module,exports){
(function (process){(function (){
'use strict'
let NoWorkResult = require('./no-work-result')
let LazyResult = require('./lazy-result')
let Document = require('./document')
let Root = require('./root')
class Processor {
constructor(plugins = []) {
this.version = '8.4.27'
this.plugins = this.normalize(plugins)
}
normalize(plugins) {
let normalized = []
for (let i of plugins) {
if (i.postcss === true) {
i = i()
} else if (i.postcss) {
i = i.postcss
}
if (typeof i === 'object' && Array.isArray(i.plugins)) {
normalized = normalized.concat(i.plugins)
} else if (typeof i === 'object' && i.postcssPlugin) {
normalized.push(i)
} else if (typeof i === 'function') {
normalized.push(i)
} else if (typeof i === 'object' && (i.parse || i.stringify)) {
if (process.env.NODE_ENV !== 'production') {
throw new Error(
'PostCSS syntaxes cannot be used as plugins. Instead, please use ' +
'one of the syntax/parser/stringifier options as outlined ' +
'in your PostCSS runner documentation.'
)
}
} else {
throw new Error(i + ' is not a PostCSS plugin')
}
}
return normalized
}
process(css, opts = {}) {
if (
this.plugins.length === 0 &&
typeof opts.parser === 'undefined' &&
typeof opts.stringifier === 'undefined' &&
typeof opts.syntax === 'undefined'
) {
return new NoWorkResult(this, css, opts)
} else {
return new LazyResult(this, css, opts)
}
}
use(plugin) {
this.plugins = this.plugins.concat(this.normalize([plugin]))
return this
}
}
module.exports = Processor
Processor.default = Processor
Root.registerProcessor(Processor)
Document.registerProcessor(Processor)
}).call(this)}).call(this,require('_process'))
},{"./document":14,"./lazy-result":17,"./no-work-result":20,"./root":28,"_process":36}],27:[function(require,module,exports){
'use strict'
let Warning = require('./warning')
class Result {
constructor(processor, root, opts) {
this.processor = processor
this.messages = []
this.root = root
this.opts = opts
this.css = undefined
this.map = undefined
}
get content() {
return this.css
}
toString() {
return this.css
}
warn(text, opts = {}) {
if (!opts.plugin) {
if (this.lastPlugin && this.lastPlugin.postcssPlugin) {
opts.plugin = this.lastPlugin.postcssPlugin
}
}
let warning = new Warning(text, opts)
this.messages.push(warning)
return warning
}
warnings() {
return this.messages.filter(i => i.type === 'warning')
}
}
module.exports = Result
Result.default = Result
},{"./warning":35}],28:[function(require,module,exports){
'use strict'
let Container = require('./container')
let LazyResult, Processor
class Root extends Container {
constructor(defaults) {
super(defaults)
this.type = 'root'
if (!this.nodes) this.nodes = []
}
normalize(child, sample, type) {
let nodes = super.normalize(child)
if (sample) {
if (type === 'prepend') {
if (this.nodes.length > 1) {
sample.raws.before = this.nodes[1].raws.before
} else {
delete sample.raws.before
}
} else if (this.first !== sample) {
for (let node of nodes) {
node.raws.before = sample.raws.before
}
}
}
return nodes
}
removeChild(child, ignore) {
let index = this.index(child)
if (!ignore && index === 0 && this.nodes.length > 1) {
this.nodes[1].raws.before = this.nodes[index].raws.before
}
return super.removeChild(child)
}
toResult(opts = {}) {
let lazy = new LazyResult(new Processor(), this, opts)
return lazy.stringify()
}
}
Root.registerLazyResult = dependant => {
LazyResult = dependant
}
Root.registerProcessor = dependant => {
Processor = dependant
}
module.exports = Root
Root.default = Root
Container.registerRoot(Root)
},{"./container":11}],29:[function(require,module,exports){
'use strict'
let Container = require('./container')
let list = require('./list')
class Rule extends Container {
constructor(defaults) {
super(defaults)
this.type = 'rule'
if (!this.nodes) this.nodes = []
}
get selectors() {
return list.comma(this.selector)
}
set selectors(values) {
let match = this.selector ? this.selector.match(/,\s*/) : null
let sep = match ? match[0] : ',' + this.raw('between', 'beforeOpen')
this.selector = values.join(sep)
}
}
module.exports = Rule
Rule.default = Rule
Container.registerRule(Rule)
},{"./container":11,"./list":18}],30:[function(require,module,exports){
'use strict'
const DEFAULT_RAW = {
after: '\n',
beforeClose: '\n',
beforeComment: '\n',
beforeDecl: '\n',
beforeOpen: ' ',
beforeRule: '\n',
colon: ': ',
commentLeft: ' ',
commentRight: ' ',
emptyBody: '',
indent: ' ',
semicolon: false
}
function capitalize(str) {
return str[0].toUpperCase() + str.slice(1)
}
class Stringifier {
constructor(builder) {
this.builder = builder
}
atrule(node, semicolon) {
let name = '@' + node.name
let params = node.params ? this.rawValue(node, 'params') : ''
if (typeof node.raws.afterName !== 'undefined') {
name += node.raws.afterName
} else if (params) {
name += ' '
}
if (node.nodes) {
this.block(node, name + params)
} else {
let end = (node.raws.between || '') + (semicolon ? ';' : '')
this.builder(name + params + end, node)
}
}
beforeAfter(node, detect) {
let value
if (node.type === 'decl') {
value = this.raw(node, null, 'beforeDecl')
} else if (node.type === 'comment') {
value = this.raw(node, null, 'beforeComment')
} else if (detect === 'before') {
value = this.raw(node, null, 'beforeRule')
} else {
value = this.raw(node, null, 'beforeClose')
}
let buf = node.parent
let depth = 0
while (buf && buf.type !== 'root') {
depth += 1
buf = buf.parent
}
if (value.includes('\n')) {
let indent = this.raw(node, null, 'indent')
if (indent.length) {
for (let step = 0; step < depth; step++) value += indent
}
}
return value
}
block(node, start) {
let between = this.raw(node, 'between', 'beforeOpen')
this.builder(start + between + '{', node, 'start')
let after
if (node.nodes && node.nodes.length) {
this.body(node)
after = this.raw(node, 'after')
} else {
after = this.raw(node, 'after', 'emptyBody')
}
if (after) this.builder(after)
this.builder('}', node, 'end')
}
body(node) {
let last = node.nodes.length - 1
while (last > 0) {
if (node.nodes[last].type !== 'comment') break
last -= 1
}
let semicolon = this.raw(node, 'semicolon')
for (let i = 0; i < node.nodes.length; i++) {
let child = node.nodes[i]
let before = this.raw(child, 'before')
if (before) this.builder(before)
this.stringify(child, last !== i || semicolon)
}
}
comment(node) {
let left = this.raw(node, 'left', 'commentLeft')
let right = this.raw(node, 'right', 'commentRight')
this.builder('/*' + left + node.text + right + '*/', node)
}
decl(node, semicolon) {
let between = this.raw(node, 'between', 'colon')
let string = node.prop + between + this.rawValue(node, 'value')
if (node.important) {
string += node.raws.important || ' !important'
}
if (semicolon) string += ';'
this.builder(string, node)
}
document(node) {
this.body(node)
}
raw(node, own, detect) {
let value
if (!detect) detect = own
// Already had
if (own) {
value = node.raws[own]
if (typeof value !== 'undefined') return value
}
let parent = node.parent
if (detect === 'before') {
// Hack for first rule in CSS
if (!parent || (parent.type === 'root' && parent.first === node)) {
return ''
}
// `root` nodes in `document` should use only their own raws
if (parent && parent.type === 'document') {
return ''
}
}
// Floating child without parent
if (!parent) return DEFAULT_RAW[detect]
// Detect style by other nodes
let root = node.root()
if (!root.rawCache) root.rawCache = {}
if (typeof root.rawCache[detect] !== 'undefined') {
return root.rawCache[detect]
}
if (detect === 'before' || detect === 'after') {
return this.beforeAfter(node, detect)
} else {
let method = 'raw' + capitalize(detect)
if (this[method]) {
value = this[method](root, node)
} else {
root.walk(i => {
value = i.raws[own]
if (typeof value !== 'undefined') return false
})
}
}
if (typeof value === 'undefined') value = DEFAULT_RAW[detect]
root.rawCache[detect] = value
return value
}
rawBeforeClose(root) {
let value
root.walk(i => {
if (i.nodes && i.nodes.length > 0) {
if (typeof i.raws.after !== 'undefined') {
value = i.raws.after
if (value.includes('\n')) {
value = value.replace(/[^\n]+$/, '')
}
return false
}
}
})
if (value) value = value.replace(/\S/g, '')
return value
}
rawBeforeComment(root, node) {
let value
root.walkComments(i => {
if (typeof i.raws.before !== 'undefined') {
value = i.raws.before
if (value.includes('\n')) {
value = value.replace(/[^\n]+$/, '')
}
return false
}
})
if (typeof value === 'undefined') {
value = this.raw(node, null, 'beforeDecl')
} else if (value) {
value = value.replace(/\S/g, '')
}
return value
}
rawBeforeDecl(root, node) {
let value
root.walkDecls(i => {
if (typeof i.raws.before !== 'undefined') {
value = i.raws.before
if (value.includes('\n')) {
value = value.replace(/[^\n]+$/, '')
}
return false
}
})
if (typeof value === 'undefined') {
value = this.raw(node, null, 'beforeRule')
} else if (value) {
value = value.replace(/\S/g, '')
}
return value
}
rawBeforeOpen(root) {
let value
root.walk(i => {
if (i.type !== 'decl') {
value = i.raws.between
if (typeof value !== 'undefined') return false
}
})
return value
}
rawBeforeRule(root) {
let value
root.walk(i => {
if (i.nodes && (i.parent !== root || root.first !== i)) {
if (typeof i.raws.before !== 'undefined') {
value = i.raws.before
if (value.includes('\n')) {
value = value.replace(/[^\n]+$/, '')
}
return false
}
}
})
if (value) value = value.replace(/\S/g, '')
return value
}
rawColon(root) {
let value
root.walkDecls(i => {
if (typeof i.raws.between !== 'undefined') {
value = i.raws.between.replace(/[^\s:]/g, '')
return false
}
})
return value
}
rawEmptyBody(root) {
let value
root.walk(i => {
if (i.nodes && i.nodes.length === 0) {
value = i.raws.after
if (typeof value !== 'undefined') return false
}
})
return value
}
rawIndent(root) {
if (root.raws.indent) return root.raws.indent
let value
root.walk(i => {
let p = i.parent
if (p && p !== root && p.parent && p.parent === root) {
if (typeof i.raws.before !== 'undefined') {
let parts = i.raws.before.split('\n')
value = parts[parts.length - 1]
value = value.replace(/\S/g, '')
return false
}
}
})
return value
}
rawSemicolon(root) {
let value
root.walk(i => {
if (i.nodes && i.nodes.length && i.last.type === 'decl') {
value = i.raws.semicolon
if (typeof value !== 'undefined') return false
}
})
return value
}
rawValue(node, prop) {
let value = node[prop]
let raw = node.raws[prop]
if (raw && raw.value === value) {
return raw.raw
}
return value
}
root(node) {
this.body(node)
if (node.raws.after) this.builder(node.raws.after)
}
rule(node) {
this.block(node, this.rawValue(node, 'selector'))
if (node.raws.ownSemicolon) {
this.builder(node.raws.ownSemicolon, node, 'end')
}
}
stringify(node, semicolon) {
/* c8 ignore start */
if (!this[node.type]) {
throw new Error(
'Unknown AST node type ' +
node.type +
'. ' +
'Maybe you need to change PostCSS stringifier.'
)
}
/* c8 ignore stop */
this[node.type](node, semicolon)
}
}
module.exports = Stringifier
Stringifier.default = Stringifier
},{}],31:[function(require,module,exports){
'use strict'
let Stringifier = require('./stringifier')
function stringify(node, builder) {
let str = new Stringifier(builder)
str.stringify(node)
}
module.exports = stringify
stringify.default = stringify
},{"./stringifier":30}],32:[function(require,module,exports){
'use strict'
module.exports.isClean = Symbol('isClean')
module.exports.my = Symbol('my')
},{}],33:[function(require,module,exports){
'use strict'
const SINGLE_QUOTE = "'".charCodeAt(0)
const DOUBLE_QUOTE = '"'.charCodeAt(0)
const BACKSLASH = '\\'.charCodeAt(0)
const SLASH = '/'.charCodeAt(0)
const NEWLINE = '\n'.charCodeAt(0)
const SPACE = ' '.charCodeAt(0)
const FEED = '\f'.charCodeAt(0)
const TAB = '\t'.charCodeAt(0)
const CR = '\r'.charCodeAt(0)
const OPEN_SQUARE = '['.charCodeAt(0)
const CLOSE_SQUARE = ']'.charCodeAt(0)
const OPEN_PARENTHESES = '('.charCodeAt(0)
const CLOSE_PARENTHESES = ')'.charCodeAt(0)
const OPEN_CURLY = '{'.charCodeAt(0)
const CLOSE_CURLY = '}'.charCodeAt(0)
const SEMICOLON = ';'.charCodeAt(0)
const ASTERISK = '*'.charCodeAt(0)
const COLON = ':'.charCodeAt(0)
const AT = '@'.charCodeAt(0)
const RE_AT_END = /[\t\n\f\r "#'()/;[\\\]{}]/g
const RE_WORD_END = /[\t\n\f\r !"#'():;@[\\\]{}]|\/(?=\*)/g
const RE_BAD_BRACKET = /.[\n"'(/\\]/
const RE_HEX_ESCAPE = /[\da-f]/i
module.exports = function tokenizer(input, options = {}) {
let css = input.css.valueOf()
let ignore = options.ignoreErrors
let code, next, quote, content, escape
let escaped, escapePos, prev, n, currentToken
let length = css.length
let pos = 0
let buffer = []
let returned = []
function position() {
return pos
}
function unclosed(what) {
throw input.error('Unclosed ' + what, pos)
}
function endOfFile() {
return returned.length === 0 && pos >= length
}
function nextToken(opts) {
if (returned.length) return returned.pop()
if (pos >= length) return
let ignoreUnclosed = opts ? opts.ignoreUnclosed : false
code = css.charCodeAt(pos)
switch (code) {
case NEWLINE:
case SPACE:
case TAB:
case CR:
case FEED: {
next = pos
do {
next += 1
code = css.charCodeAt(next)
} while (
code === SPACE ||
code === NEWLINE ||
code === TAB ||
code === CR ||
code === FEED
)
currentToken = ['space', css.slice(pos, next)]
pos = next - 1
break
}
case OPEN_SQUARE:
case CLOSE_SQUARE:
case OPEN_CURLY:
case CLOSE_CURLY:
case COLON:
case SEMICOLON:
case CLOSE_PARENTHESES: {
let controlChar = String.fromCharCode(code)
currentToken = [controlChar, controlChar, pos]
break
}
case OPEN_PARENTHESES: {
prev = buffer.length ? buffer.pop()[1] : ''
n = css.charCodeAt(pos + 1)
if (
prev === 'url' &&
n !== SINGLE_QUOTE &&
n !== DOUBLE_QUOTE &&
n !== SPACE &&
n !== NEWLINE &&
n !== TAB &&
n !== FEED &&
n !== CR
) {
next = pos
do {
escaped = false
next = css.indexOf(')', next + 1)
if (next === -1) {
if (ignore || ignoreUnclosed) {
next = pos
break
} else {
unclosed('bracket')
}
}
escapePos = next
while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
escapePos -= 1
escaped = !escaped
}
} while (escaped)
currentToken = ['brackets', css.slice(pos, next + 1), pos, next]
pos = next
} else {
next = css.indexOf(')', pos + 1)
content = css.slice(pos, next + 1)
if (next === -1 || RE_BAD_BRACKET.test(content)) {
currentToken = ['(', '(', pos]
} else {
currentToken = ['brackets', content, pos, next]
pos = next
}
}
break
}
case SINGLE_QUOTE:
case DOUBLE_QUOTE: {
quote = code === SINGLE_QUOTE ? "'" : '"'
next = pos
do {
escaped = false
next = css.indexOf(quote, next + 1)
if (next === -1) {
if (ignore || ignoreUnclosed) {
next = pos + 1
break
} else {
unclosed('string')
}
}
escapePos = next
while (css.charCodeAt(escapePos - 1) === BACKSLASH) {
escapePos -= 1
escaped = !escaped
}
} while (escaped)
currentToken = ['string', css.slice(pos, next + 1), pos, next]
pos = next
break
}
case AT: {
RE_AT_END.lastIndex = pos + 1
RE_AT_END.test(css)
if (RE_AT_END.lastIndex === 0) {
next = css.length - 1
} else {
next = RE_AT_END.lastIndex - 2
}
currentToken = ['at-word', css.slice(pos, next + 1), pos, next]
pos = next
break
}
case BACKSLASH: {
next = pos
escape = true
while (css.charCodeAt(next + 1) === BACKSLASH) {
next += 1
escape = !escape
}
code = css.charCodeAt(next + 1)
if (
escape &&
code !== SLASH &&
code !== SPACE &&
code !== NEWLINE &&
code !== TAB &&
code !== CR &&
code !== FEED
) {
next += 1
if (RE_HEX_ESCAPE.test(css.charAt(next))) {
while (RE_HEX_ESCAPE.test(css.charAt(next + 1))) {
next += 1
}
if (css.charCodeAt(next + 1) === SPACE) {
next += 1
}
}
}
currentToken = ['word', css.slice(pos, next + 1), pos, next]
pos = next
break
}
default: {
if (code === SLASH && css.charCodeAt(pos + 1) === ASTERISK) {
next = css.indexOf('*/', pos + 2) + 1
if (next === 0) {
if (ignore || ignoreUnclosed) {
next = css.length
} else {
unclosed('comment')
}
}
currentToken = ['comment', css.slice(pos, next + 1), pos, next]
pos = next
} else {
RE_WORD_END.lastIndex = pos + 1
RE_WORD_END.test(css)
if (RE_WORD_END.lastIndex === 0) {
next = css.length - 1
} else {
next = RE_WORD_END.lastIndex - 2
}
currentToken = ['word', css.slice(pos, next + 1), pos, next]
buffer.push(currentToken)
pos = next
}
break
}
}
pos++
return currentToken
}
function back(token) {
returned.push(token)
}
return {
back,
endOfFile,
nextToken,
position
}
}
},{}],34:[function(require,module,exports){
/* eslint-disable no-console */
'use strict'
let printed = {}
module.exports = function warnOnce(message) {
if (printed[message]) return
printed[message] = true
if (typeof console !== 'undefined' && console.warn) {
console.warn(message)
}
}
},{}],35:[function(require,module,exports){
'use strict'
class Warning {
constructor(text, opts = {}) {
this.type = 'warning'
this.text = text
if (opts.node && opts.node.source) {
let range = opts.node.rangeBy(opts)
this.line = range.start.line
this.column = range.start.column
this.endLine = range.end.line
this.endColumn = range.end.column
}
for (let opt in opts) this[opt] = opts[opt]
}
toString() {
if (this.node) {
return this.node.error(this.text, {
index: this.index,
plugin: this.plugin,
word: this.word
}).message
}
if (this.plugin) {
return this.plugin + ': ' + this.text
}
return this.text
}
}
module.exports = Warning
Warning.default = Warning
},{}],36:[function(require,module,exports){
// shim for using process in browser
var process = module.exports = {};
// cached from whatever global is present so that test runners that stub it
// don't break things. But we need to wrap it in a try catch in case it is
// wrapped in strict mode code which doesn't define any globals. It's inside a
// function because try/catches deoptimize in certain engines.
var cachedSetTimeout;
var cachedClearTimeout;
function defaultSetTimout() {
throw new Error('setTimeout has not been defined');
}
function defaultClearTimeout () {
throw new Error('clearTimeout has not been defined');
}
(function () {
try {
if (typeof setTimeout === 'function') {
cachedSetTimeout = setTimeout;
} else {
cachedSetTimeout = defaultSetTimout;
}
} catch (e) {
cachedSetTimeout = defaultSetTimout;
}
try {
if (typeof clearTimeout === 'function') {
cachedClearTimeout = clearTimeout;
} else {
cachedClearTimeout = defaultClearTimeout;
}
} catch (e) {
cachedClearTimeout = defaultClearTimeout;
}
} ())
function runTimeout(fun) {
if (cachedSetTimeout === setTimeout) {
//normal enviroments in sane situations
return setTimeout(fun, 0);
}
// if setTimeout wasn't available but was latter defined
if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {
cachedSetTimeout = setTimeout;
return setTimeout(fun, 0);
}
try {
// when when somebody has screwed with setTimeout but no I.E. maddness
return cachedSetTimeout(fun, 0);
} catch(e){
try {
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
return cachedSetTimeout.call(null, fun, 0);
} catch(e){
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error
return cachedSetTimeout.call(this, fun, 0);
}
}
}
function runClearTimeout(marker) {
if (cachedClearTimeout === clearTimeout) {
//normal enviroments in sane situations
return clearTimeout(marker);
}
// if clearTimeout wasn't available but was latter defined
if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {
cachedClearTimeout = clearTimeout;
return clearTimeout(marker);
}
try {
// when when somebody has screwed with setTimeout but no I.E. maddness
return cachedClearTimeout(marker);
} catch (e){
try {
// When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally
return cachedClearTimeout.call(null, marker);
} catch (e){
// same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.
// Some versions of I.E. have different rules for clearTimeout vs setTimeout
return cachedClearTimeout.call(this, marker);
}
}
}
var queue = [];
var draining = false;
var currentQueue;
var queueIndex = -1;
function cleanUpNextTick() {
if (!draining || !currentQueue) {
return;
}
draining = false;
if (currentQueue.length) {
queue = currentQueue.concat(queue);
} else {
queueIndex = -1;
}
if (queue.length) {
drainQueue();
}
}
function drainQueue() {
if (draining) {
return;
}
var timeout = runTimeout(cleanUpNextTick);
draining = true;
var len = queue.length;
while(len) {
currentQueue = queue;
queue = [];
while (++queueIndex < len) {
if (currentQueue) {
currentQueue[queueIndex].run();
}
}
queueIndex = -1;
len = queue.length;
}
currentQueue = null;
draining = false;
runClearTimeout(timeout);
}
process.nextTick = function (fun) {
var args = new Array(arguments.length - 1);
if (arguments.length > 1) {
for (var i = 1; i < arguments.length; i++) {
args[i - 1] = arguments[i];
}
}
queue.push(new Item(fun, args));
if (queue.length === 1 && !draining) {
runTimeout(drainQueue);
}
};
// v8 likes predictible objects
function Item(fun, array) {
this.fun = fun;
this.array = array;
}
Item.prototype.run = function () {
this.fun.apply(null, this.array);
};
process.title = 'browser';
process.browser = true;
process.env = {};
process.argv = [];
process.version = ''; // empty string to avoid regexp issues
process.versions = {};
function noop() {}
process.on = noop;
process.addListener = noop;
process.once = noop;
process.off = noop;
process.removeListener = noop;
process.removeAllListeners = noop;
process.emit = noop;
process.prependListener = noop;
process.prependOnceListener = noop;
process.listeners = function (name) { return [] }
process.binding = function (name) {
throw new Error('process.binding is not supported');
};
process.cwd = function () { return '/' };
process.chdir = function (dir) {
throw new Error('process.chdir is not supported');
};
process.umask = function() { return 0; };
},{}]},{},[8])(8)
});