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439 lines
10 KiB
439 lines
10 KiB
'use strict'
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let { isClean, my } = require('./symbols')
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let Declaration = require('./declaration')
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let Comment = require('./comment')
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let Node = require('./node')
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let parse, Rule, AtRule, Root
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function cleanSource(nodes) {
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return nodes.map(i => {
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if (i.nodes) i.nodes = cleanSource(i.nodes)
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delete i.source
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return i
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})
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}
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function markDirtyUp(node) {
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node[isClean] = false
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if (node.proxyOf.nodes) {
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for (let i of node.proxyOf.nodes) {
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markDirtyUp(i)
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}
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}
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}
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class Container extends Node {
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push(child) {
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child.parent = this
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this.proxyOf.nodes.push(child)
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return this
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}
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each(callback) {
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if (!this.proxyOf.nodes) return undefined
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let iterator = this.getIterator()
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let index, result
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while (this.indexes[iterator] < this.proxyOf.nodes.length) {
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index = this.indexes[iterator]
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result = callback(this.proxyOf.nodes[index], index)
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if (result === false) break
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this.indexes[iterator] += 1
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}
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delete this.indexes[iterator]
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return result
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}
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walk(callback) {
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return this.each((child, i) => {
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let result
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try {
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result = callback(child, i)
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} catch (e) {
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throw child.addToError(e)
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}
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if (result !== false && child.walk) {
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result = child.walk(callback)
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}
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return result
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})
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}
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walkDecls(prop, callback) {
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if (!callback) {
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callback = prop
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return this.walk((child, i) => {
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if (child.type === 'decl') {
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return callback(child, i)
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}
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})
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}
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if (prop instanceof RegExp) {
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return this.walk((child, i) => {
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if (child.type === 'decl' && prop.test(child.prop)) {
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return callback(child, i)
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}
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})
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}
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return this.walk((child, i) => {
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if (child.type === 'decl' && child.prop === prop) {
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return callback(child, i)
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}
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})
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}
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walkRules(selector, callback) {
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if (!callback) {
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callback = selector
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return this.walk((child, i) => {
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if (child.type === 'rule') {
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return callback(child, i)
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}
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})
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}
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if (selector instanceof RegExp) {
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return this.walk((child, i) => {
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if (child.type === 'rule' && selector.test(child.selector)) {
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return callback(child, i)
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}
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})
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}
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return this.walk((child, i) => {
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if (child.type === 'rule' && child.selector === selector) {
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return callback(child, i)
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}
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})
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}
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walkAtRules(name, callback) {
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if (!callback) {
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callback = name
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return this.walk((child, i) => {
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if (child.type === 'atrule') {
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return callback(child, i)
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}
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})
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}
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if (name instanceof RegExp) {
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return this.walk((child, i) => {
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if (child.type === 'atrule' && name.test(child.name)) {
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return callback(child, i)
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}
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})
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}
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return this.walk((child, i) => {
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if (child.type === 'atrule' && child.name === name) {
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return callback(child, i)
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}
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})
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}
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walkComments(callback) {
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return this.walk((child, i) => {
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if (child.type === 'comment') {
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return callback(child, i)
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}
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})
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}
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append(...children) {
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for (let child of children) {
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let nodes = this.normalize(child, this.last)
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for (let node of nodes) this.proxyOf.nodes.push(node)
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}
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this.markDirty()
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return this
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}
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prepend(...children) {
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children = children.reverse()
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for (let child of children) {
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let nodes = this.normalize(child, this.first, 'prepend').reverse()
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for (let node of nodes) this.proxyOf.nodes.unshift(node)
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for (let id in this.indexes) {
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this.indexes[id] = this.indexes[id] + nodes.length
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}
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}
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this.markDirty()
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return this
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}
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cleanRaws(keepBetween) {
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super.cleanRaws(keepBetween)
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if (this.nodes) {
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for (let node of this.nodes) node.cleanRaws(keepBetween)
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}
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}
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insertBefore(exist, add) {
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let existIndex = this.index(exist)
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let type = exist === 0 ? 'prepend' : false
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let nodes = this.normalize(add, this.proxyOf.nodes[existIndex], type).reverse()
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existIndex = this.index(exist)
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for (let node of nodes) this.proxyOf.nodes.splice(existIndex, 0, node)
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let index
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for (let id in this.indexes) {
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index = this.indexes[id]
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if (existIndex <= index) {
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this.indexes[id] = index + nodes.length
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}
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}
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this.markDirty()
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return this
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}
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insertAfter(exist, add) {
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let existIndex = this.index(exist)
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let nodes = this.normalize(add, this.proxyOf.nodes[existIndex]).reverse()
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existIndex = this.index(exist)
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for (let node of nodes) this.proxyOf.nodes.splice(existIndex + 1, 0, node)
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let index
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for (let id in this.indexes) {
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index = this.indexes[id]
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if (existIndex < index) {
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this.indexes[id] = index + nodes.length
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}
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}
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this.markDirty()
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return this
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}
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removeChild(child) {
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child = this.index(child)
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this.proxyOf.nodes[child].parent = undefined
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this.proxyOf.nodes.splice(child, 1)
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let index
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for (let id in this.indexes) {
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index = this.indexes[id]
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if (index >= child) {
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this.indexes[id] = index - 1
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}
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}
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this.markDirty()
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return this
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}
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removeAll() {
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for (let node of this.proxyOf.nodes) node.parent = undefined
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this.proxyOf.nodes = []
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this.markDirty()
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return this
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}
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replaceValues(pattern, opts, callback) {
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if (!callback) {
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callback = opts
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opts = {}
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}
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this.walkDecls(decl => {
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if (opts.props && !opts.props.includes(decl.prop)) return
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if (opts.fast && !decl.value.includes(opts.fast)) return
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decl.value = decl.value.replace(pattern, callback)
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})
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this.markDirty()
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return this
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}
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every(condition) {
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return this.nodes.every(condition)
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}
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some(condition) {
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return this.nodes.some(condition)
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}
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index(child) {
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if (typeof child === 'number') return child
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if (child.proxyOf) child = child.proxyOf
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return this.proxyOf.nodes.indexOf(child)
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}
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get first() {
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if (!this.proxyOf.nodes) return undefined
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return this.proxyOf.nodes[0]
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}
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get last() {
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if (!this.proxyOf.nodes) return undefined
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return this.proxyOf.nodes[this.proxyOf.nodes.length - 1]
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}
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normalize(nodes, sample) {
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if (typeof nodes === 'string') {
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nodes = cleanSource(parse(nodes).nodes)
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} else if (Array.isArray(nodes)) {
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nodes = nodes.slice(0)
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for (let i of nodes) {
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if (i.parent) i.parent.removeChild(i, 'ignore')
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}
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} else if (nodes.type === 'root' && this.type !== 'document') {
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nodes = nodes.nodes.slice(0)
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for (let i of nodes) {
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if (i.parent) i.parent.removeChild(i, 'ignore')
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}
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} else if (nodes.type) {
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nodes = [nodes]
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} else if (nodes.prop) {
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if (typeof nodes.value === 'undefined') {
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throw new Error('Value field is missed in node creation')
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} else if (typeof nodes.value !== 'string') {
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nodes.value = String(nodes.value)
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}
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nodes = [new Declaration(nodes)]
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} else if (nodes.selector) {
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nodes = [new Rule(nodes)]
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} else if (nodes.name) {
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nodes = [new AtRule(nodes)]
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} else if (nodes.text) {
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nodes = [new Comment(nodes)]
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} else {
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throw new Error('Unknown node type in node creation')
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}
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let processed = nodes.map(i => {
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/* c8 ignore next */
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if (!i[my]) Container.rebuild(i)
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i = i.proxyOf
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if (i.parent) i.parent.removeChild(i)
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if (i[isClean]) markDirtyUp(i)
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if (typeof i.raws.before === 'undefined') {
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if (sample && typeof sample.raws.before !== 'undefined') {
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i.raws.before = sample.raws.before.replace(/\S/g, '')
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}
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}
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i.parent = this.proxyOf
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return i
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})
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return processed
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}
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getProxyProcessor() {
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return {
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set(node, prop, value) {
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if (node[prop] === value) return true
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node[prop] = value
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if (prop === 'name' || prop === 'params' || prop === 'selector') {
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node.markDirty()
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}
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return true
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},
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get(node, prop) {
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if (prop === 'proxyOf') {
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return node
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} else if (!node[prop]) {
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return node[prop]
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} else if (
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prop === 'each' ||
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(typeof prop === 'string' && prop.startsWith('walk'))
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) {
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return (...args) => {
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return node[prop](
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...args.map(i => {
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if (typeof i === 'function') {
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return (child, index) => i(child.toProxy(), index)
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} else {
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return i
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}
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})
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)
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}
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} else if (prop === 'every' || prop === 'some') {
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return cb => {
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return node[prop]((child, ...other) =>
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cb(child.toProxy(), ...other)
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)
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}
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} else if (prop === 'root') {
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return () => node.root().toProxy()
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} else if (prop === 'nodes') {
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return node.nodes.map(i => i.toProxy())
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} else if (prop === 'first' || prop === 'last') {
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return node[prop].toProxy()
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} else {
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return node[prop]
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}
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}
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}
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}
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getIterator() {
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if (!this.lastEach) this.lastEach = 0
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if (!this.indexes) this.indexes = {}
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this.lastEach += 1
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let iterator = this.lastEach
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this.indexes[iterator] = 0
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return iterator
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}
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}
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Container.registerParse = dependant => {
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parse = dependant
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}
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Container.registerRule = dependant => {
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Rule = dependant
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}
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Container.registerAtRule = dependant => {
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AtRule = dependant
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}
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Container.registerRoot = dependant => {
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Root = dependant
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}
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module.exports = Container
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Container.default = Container
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/* c8 ignore start */
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Container.rebuild = node => {
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if (node.type === 'atrule') {
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Object.setPrototypeOf(node, AtRule.prototype)
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} else if (node.type === 'rule') {
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Object.setPrototypeOf(node, Rule.prototype)
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} else if (node.type === 'decl') {
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Object.setPrototypeOf(node, Declaration.prototype)
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} else if (node.type === 'comment') {
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Object.setPrototypeOf(node, Comment.prototype)
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} else if (node.type === 'root') {
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Object.setPrototypeOf(node, Root.prototype)
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}
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node[my] = true
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if (node.nodes) {
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node.nodes.forEach(child => {
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Container.rebuild(child)
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})
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}
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}
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/* c8 ignore stop */
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