mirror of https://github.com/requarks/wiki
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311 lines
9.5 KiB
311 lines
9.5 KiB
const _ = require('lodash')
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const cheerio = require('cheerio')
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const uslug = require('uslug')
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const pageHelper = require('../../../helpers/page')
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const URL = require('url').URL
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const mustacheRegExp = /(\{|{?){2}(.+?)(\}|}?){2}/i
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/* global WIKI */
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module.exports = {
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async render() {
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let $ = cheerio.load(this.input, {
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decodeEntities: true
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})
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if ($.root().children().length < 1) {
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return ''
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}
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// --------------------------------
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// STEP: PRE
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// --------------------------------
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for (let child of _.reject(this.children, ['step', 'post'])) {
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const renderer = require(`../${_.kebabCase(child.key)}/renderer.js`)
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await renderer.init($, child.config)
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}
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// --------------------------------
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// Detect internal / external links
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// --------------------------------
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let internalRefs = []
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const reservedPrefixes = /^\/[a-z]\//i
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const exactReservedPaths = /^\/[a-z]$/i
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const isHostSet = WIKI.config.host.length > 7 && WIKI.config.host !== 'http://'
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if (!isHostSet) {
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WIKI.logger.warn('Host is not set. You must set the Site Host under General in the Administration Area!')
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}
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$('a').each((i, elm) => {
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let href = $(elm).attr('href')
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// -> Ignore empty / anchor links, e-mail addresses, and telephone numbers
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if (!href || href.length < 1 || href.indexOf('#') === 0 ||
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href.indexOf('mailto:') === 0 || href.indexOf('tel:') === 0) {
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return
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}
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// -> Strip host from local links
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if (isHostSet && href.indexOf(`${WIKI.config.host}/`) === 0) {
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href = href.replace(WIKI.config.host, '')
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}
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// -> Assign local / external tag
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if (href.indexOf('://') < 0) {
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// -> Remove trailing slash
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if (_.endsWith('/')) {
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href = href.slice(0, -1)
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}
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// -> Check for system prefix
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if (reservedPrefixes.test(href) || exactReservedPaths.test(href)) {
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$(elm).addClass(`is-system-link`)
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} else if (href.indexOf('.') >= 0) {
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$(elm).addClass(`is-asset-link`)
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} else {
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let pagePath = null
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// -> Add locale prefix if using namespacing
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if (WIKI.config.lang.namespacing) {
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// -> Reformat paths
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if (href.indexOf('/') !== 0) {
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if (this.config.absoluteLinks) {
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href = `/${this.page.localeCode}/${href}`
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} else {
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href = (this.page.path === 'home') ? `/${this.page.localeCode}/${href}` : `/${this.page.localeCode}/${this.page.path}/${href}`
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}
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} else if (href.charAt(3) !== '/') {
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href = `/${this.page.localeCode}${href}`
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}
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try {
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const parsedUrl = new URL(`http://x${href}`)
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pagePath = pageHelper.parsePath(parsedUrl.pathname)
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} catch (err) {
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return
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}
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} else {
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// -> Reformat paths
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if (href.indexOf('/') !== 0) {
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if (this.config.absoluteLinks) {
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href = `/${href}`
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} else {
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href = (this.page.path === 'home') ? `/${href}` : `/${this.page.path}/${href}`
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}
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}
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try {
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const parsedUrl = new URL(`http://x${href}`)
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pagePath = pageHelper.parsePath(parsedUrl.pathname)
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} catch (err) {
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return
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}
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}
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// -> Save internal references
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internalRefs.push({
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localeCode: pagePath.locale,
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path: pagePath.path
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})
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$(elm).addClass(`is-internal-link`)
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}
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} else {
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$(elm).addClass(`is-external-link`)
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if (this.config.openExternalLinkNewTab) {
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$(elm).attr('target', '_blank')
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$(elm).attr('rel', this.config.relAttributeExternalLink)
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}
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}
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// -> Update element
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$(elm).attr('href', href)
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})
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// --------------------------------
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// Detect internal link states
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// --------------------------------
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const pastLinks = await this.page.$relatedQuery('links')
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if (internalRefs.length > 0) {
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// -> Find matching pages
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const results = await WIKI.models.pages.query().column('id', 'path', 'localeCode').where(builder => {
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internalRefs.forEach((ref, idx) => {
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if (idx < 1) {
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builder.where(ref)
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} else {
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builder.orWhere(ref)
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}
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})
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})
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// -> Apply tag to internal links for found pages
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$('a.is-internal-link').each((i, elm) => {
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const href = $(elm).attr('href')
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let hrefObj = {}
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try {
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const parsedUrl = new URL(`http://x${href}`)
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hrefObj = pageHelper.parsePath(parsedUrl.pathname)
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} catch (err) {
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return
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}
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if (_.some(results, r => {
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return r.localeCode === hrefObj.locale && r.path === hrefObj.path
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})) {
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$(elm).addClass(`is-valid-page`)
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} else {
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$(elm).addClass(`is-invalid-page`)
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}
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})
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// -> Add missing links
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const missingLinks = _.differenceWith(internalRefs, pastLinks, (nLink, pLink) => {
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return nLink.localeCode === pLink.localeCode && nLink.path === pLink.path
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})
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if (missingLinks.length > 0) {
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if (WIKI.config.db.type === 'postgres') {
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await WIKI.models.pageLinks.query().insert(missingLinks.map(lnk => ({
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pageId: this.page.id,
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path: lnk.path,
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localeCode: lnk.localeCode
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})))
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} else {
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for (const lnk of missingLinks) {
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await WIKI.models.pageLinks.query().insert({
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pageId: this.page.id,
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path: lnk.path,
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localeCode: lnk.localeCode
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})
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}
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}
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}
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}
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// -> Remove outdated links
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if (pastLinks) {
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const outdatedLinks = _.differenceWith(pastLinks, internalRefs, (nLink, pLink) => {
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return nLink.localeCode === pLink.localeCode && nLink.path === pLink.path
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})
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if (outdatedLinks.length > 0) {
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await WIKI.models.pageLinks.query().delete().whereIn('id', _.map(outdatedLinks, 'id'))
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}
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}
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// --------------------------------
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// Add header handles
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// --------------------------------
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let headers = []
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$('h1,h2,h3,h4,h5,h6').each((i, elm) => {
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let headerSlug = uslug($(elm).text())
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// -> If custom ID is defined, try to use that instead
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if ($(elm).attr('id')) {
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headerSlug = $(elm).attr('id')
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}
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// -> Cannot start with a number (CSS selector limitation)
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if (headerSlug.match(/^\d/)) {
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headerSlug = `h-${headerSlug}`
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}
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// -> Make sure header is unique
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if (headers.indexOf(headerSlug) >= 0) {
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let isUnique = false
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let hIdx = 1
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while (!isUnique) {
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const headerSlugTry = `${headerSlug}-${hIdx}`
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if (headers.indexOf(headerSlugTry) < 0) {
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isUnique = true
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headerSlug = headerSlugTry
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}
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hIdx++
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}
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}
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// -> Add anchor
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$(elm).attr('id', headerSlug).addClass('toc-header')
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$(elm).prepend(`<a class="toc-anchor" href="#${headerSlug}">¶</a> `)
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headers.push(headerSlug)
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})
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// --------------------------------
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// Wrap non-empty root text nodes
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// --------------------------------
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$('body').contents().toArray().forEach(item => {
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if (item && item.type === 'text' && item.parent.name === 'body' && item.data !== `\n` && item.data !== `\r`) {
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$(item).wrap('<div></div>')
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}
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})
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// --------------------------------
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// Wrap root table nodes
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// --------------------------------
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$('body').contents().toArray().forEach(item => {
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if (item && item.name === 'table' && item.parent.name === 'body') {
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$(item).wrap('<div class="table-container"></div>')
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}
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})
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// --------------------------------
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// STEP: POST
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// --------------------------------
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let output = decodeEscape($.html('body').replace('<body>', '').replace('</body>', ''))
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for (let child of _.sortBy(_.filter(this.children, ['step', 'post']), ['order'])) {
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const renderer = require(`../${_.kebabCase(child.key)}/renderer.js`)
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output = await renderer.init(output, child.config)
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}
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// --------------------------------
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// Escape mustache expresions
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// --------------------------------
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$ = cheerio.load(output, {
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decodeEntities: true
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})
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function iterateMustacheNode (node) {
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$(node).contents().each((idx, item) => {
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if (item && item.type === 'text') {
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const rawText = $(item).text().replace(/\r?\n|\r/g, '')
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if (mustacheRegExp.test(rawText)) {
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if (!item.parent || item.parent.name === 'body') {
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$(item).wrap($('<p>').attr('v-pre', true))
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} else {
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$(item).parent().attr('v-pre', true)
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}
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}
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} else {
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iterateMustacheNode(item)
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}
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})
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}
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iterateMustacheNode($.root())
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$('pre').each((idx, elm) => {
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$(elm).attr('v-pre', true)
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})
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return decodeEscape($.html('body').replace('<body>', '').replace('</body>', ''))
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}
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}
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function decodeEscape (string) {
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return string.replace(/&#x([0-9a-f]{1,6});/ig, (entity, code) => {
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code = parseInt(code, 16)
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// Don't unescape ASCII characters, assuming they're encoded for a good reason
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if (code < 0x80) return entity
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return String.fromCodePoint(code)
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})
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}
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