mirror of
https://github.com/naturalcrit/homebrewery.git
synced 2025-12-24 16:22:44 +00:00
565 lines
20 KiB
JavaScript
565 lines
20 KiB
JavaScript
/* eslint-disable max-depth */
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/* eslint-disable max-lines */
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import _ from 'lodash';
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import { marked as Marked } from 'marked';
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import MarkedExtendedTables from 'marked-extended-tables';
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import MarkedDefinitionLists from 'marked-definition-lists';
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import MarkedAlignedParagraphs from 'marked-alignment-paragraphs';
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import MarkedNonbreakingSpaces from 'marked-nonbreaking-spaces';
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import MarkedSubSuperText from 'marked-subsuper-text';
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import { markedVariables,
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setMarkedVariablePage,
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setMarkedVariable,
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getMarkedVariable } from 'marked-variables';
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import { markedSmartypantsLite as MarkedSmartypantsLite } from 'marked-smartypants-lite';
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import { gfmHeadingId as MarkedGFMHeadingId, resetHeadings as MarkedGFMResetHeadingIDs } from 'marked-gfm-heading-id';
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import { markedEmoji as MarkedEmojis } from 'marked-emoji';
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//Icon fonts included so they can appear in emoji autosuggest dropdown
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import diceFont from '../../themes/fonts/iconFonts/diceFont.js';
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import elderberryInn from '../../themes/fonts/iconFonts/elderberryInn.js';
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import gameIcons from '../../themes/fonts/iconFonts/gameIcons.js';
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import fontAwesome from '../../themes/fonts/iconFonts/fontAwesome.js';
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const renderer = new Marked.Renderer();
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const tokenizer = new Marked.Tokenizer();
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//Processes the markdown within an HTML block if it's just a class-wrapper
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renderer.html = function (token) {
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let html = token.text;
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if(_.startsWith(_.trim(html), '<div') && _.endsWith(_.trim(html), '</div>')){
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const openTag = html.substring(0, html.indexOf('>')+1);
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html = html.substring(html.indexOf('>')+1);
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html = html.substring(0, html.lastIndexOf('</div>'));
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return `${openTag} ${Marked.parse(html)} </div>`;
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}
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return html;
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};
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// Don't wrap {{ Spans alone on a line, or {{ Divs in <p> tags
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renderer.paragraph = function(token){
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let match;
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const text = this.parser.parseInline(token.tokens);
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if(text.startsWith('<div') || text.startsWith('</div'))
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return `${text}`;
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else if(match = text.match(/(^|^.*?\n)<span class="inline-block(.*?<\/span>)$/))
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return `${match[1].trim() ? `<p>${match[1]}</p>` : ''}<span class="inline-block${match[2]}`;
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else
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return `<p>${text}</p>\n`;
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};
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//Fix local links in the Preview iFrame to link inside the frame
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renderer.link = function (token) {
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let { href, title, tokens } = token;
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const text = this.parser.parseInline(tokens);
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let self = false;
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if(href[0] == '#') {
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self = true;
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}
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href = cleanUrl(href);
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if(href === null) {
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return text;
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}
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let out = `<a href="${escape(href)}"`;
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if(title) {
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out += ` title="${escape(title)}"`;
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}
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if(self) {
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out += ' target="_self"';
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}
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out += `>${text}</a>`;
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return out;
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};
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// Expose `src` attribute as `--HB_src` to make the URL accessible via CSS
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renderer.image = function (token) {
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const { href, title, text } = token;
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if(href === null)
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return text;
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let out = `<img src="${href}" alt="${text}" style="--HB_src:url(${href});"`;
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if(title)
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out += ` title="${title}"`;
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out += '>';
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return out;
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};
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// Disable default reflink behavior, as it steps on our variables extension
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tokenizer.def = function () {
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return undefined;
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};
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const mustacheSpans = {
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name : 'mustacheSpans',
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level : 'inline', // Is this a block-level or inline-level tokenizer?
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start(src) { return src.match(/{{[^{]/)?.index; }, // Hint to Marked.js to stop and check for a match
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tokenizer(src, tokens) {
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const completeSpan = /^{{[^\n]*}}/; // Regex for the complete token
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const inlineRegex = /{{(?=((?:[:=](?:"['\w,\-+*/()#%=?. ]*"|[\w\-+*/()#%.]*)|[^"=':{}\s]*)*))\1 *|}}/g;
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const match = completeSpan.exec(src);
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if(match) {
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//Find closing delimiter
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let blockCount = 0;
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let tags = {};
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let endTags = 0;
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let endToken = 0;
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let delim;
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while (delim = inlineRegex.exec(match[0])) {
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if(_.isEmpty(tags)) {
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tags = processStyleTags(delim[0].substring(2));
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endTags = delim[0].length;
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}
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if(delim[0].startsWith('{{')) {
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blockCount++;
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} else if(delim[0] == '}}' && blockCount !== 0) {
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blockCount--;
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if(blockCount == 0) {
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endToken = inlineRegex.lastIndex;
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break;
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}
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}
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}
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if(endToken) {
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const raw = src.slice(0, endToken);
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const text = raw.slice(endTags || -2, -2);
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return { // Token to generate
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type : 'mustacheSpans', // Should match "name" above
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raw : raw, // Text to consume from the source
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text : text, // Additional custom properties
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tags : tags,
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tokens : this.lexer.inlineTokens(text) // inlineTokens to process **bold**, *italics*, etc.
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};
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}
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}
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},
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renderer(token) {
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const tags = token.tags;
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tags.classes = ['inline-block', tags.classes].join(' ').trim();
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return `<span` +
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`${tags.classes ? ` class="${tags.classes}"` : ''}` +
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`${tags.id ? ` id="${tags.id}"` : ''}` +
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`${tags.styles ? ` style="${Object.entries(tags.styles).map(([key, value])=>`${key}:${value};`).join(' ')}"` : ''}` +
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`${tags.attributes ? ` ${Object.entries(tags.attributes).map(([key, value])=>`${key}="${value}"`).join(' ')}` : ''}` +
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`>${this.parser.parseInline(token.tokens)}</span>`; // parseInline to turn child tokens into HTML
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}
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};
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const mustacheDivs = {
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name : 'mustacheDivs',
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level : 'block',
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start(src) { return src.match(/\n *{{[^{]/m)?.index; }, // Hint to Marked.js to stop and check for a match
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tokenizer(src, tokens) {
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const completeBlock = /^ *{{[^\n}]* *\n.*\n *}}/s; // Regex for the complete token
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const blockRegex = /^ *{{(?=((?:[:=](?:"['\w,\-+*/()#%=?. ]*"|[\w\-+*/()#%.]*)|[^"=':{}\s]*)*))\1 *$|^ *}}$/gm;
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const match = completeBlock.exec(src);
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if(match) {
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//Find closing delimiter
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let blockCount = 0;
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let tags = {};
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let endTags = 0;
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let endToken = 0;
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let delim;
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while (delim = blockRegex.exec(match[0])?.[0].trim()) {
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if(_.isEmpty(tags)) {
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tags = processStyleTags(delim.substring(2));
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endTags = delim.length + src.indexOf(delim);
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}
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if(delim.startsWith('{{')) {
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blockCount++;
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} else if(delim == '}}' && blockCount !== 0) {
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blockCount--;
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if(blockCount == 0) {
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endToken = blockRegex.lastIndex;
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break;
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}
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}
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}
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if(endToken) {
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const raw = src.slice(0, endToken);
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const text = raw.slice(endTags || -2, -2);
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return { // Token to generate
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type : 'mustacheDivs', // Should match "name" above
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raw : raw, // Text to consume from the source
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text : text, // Additional custom properties
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tags : tags,
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tokens : this.lexer.blockTokens(text)
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};
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}
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}
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},
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renderer(token) {
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const tags = token.tags;
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tags.classes = ['block', tags.classes].join(' ').trim();
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return `<div` +
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`${tags.classes ? ` class="${tags.classes}"` : ''}` +
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`${tags.id ? ` id="${tags.id}"` : ''}` +
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`${tags.styles ? ` style="${Object.entries(tags.styles).map(([key, value])=>`${key}:${value};`).join(' ')}"` : ''}` +
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`${tags.attributes ? ` ${Object.entries(tags.attributes).map(([key, value])=>`${key}="${value}"`).join(' ')}` : ''}` +
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`>${this.parser.parse(token.tokens)}</div>`; // parse to turn child tokens into HTML
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}
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};
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const mustacheInjectInline = {
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name : 'mustacheInjectInline',
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level : 'inline',
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start(src) { return src.match(/ *{[^{\n]/)?.index; }, // Hint to Marked.js to stop and check for a match
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tokenizer(src, tokens) {
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const inlineRegex = /^ *{(?=((?:[:=](?:"['\w,\-+*/()#%=?. ]*"|[\w\-+*/()#%.]*)|[^"=':{}\s]*)*))\1}/g;
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const match = inlineRegex.exec(src);
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if(match) {
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const lastToken = tokens[tokens.length - 1];
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if(!lastToken || lastToken.type == 'mustacheInjectInline')
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return false;
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const tags = processStyleTags(match[1]);
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lastToken.originalType = lastToken.type;
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lastToken.type = 'mustacheInjectInline';
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lastToken.injectedTags = tags;
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return {
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type : 'mustacheInjectInline', // Should match "name" above
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raw : match[0], // Text to consume from the source
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text : ''
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};
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}
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},
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renderer(token) {
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if(!token.originalType){
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return;
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}
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token.type = token.originalType;
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const text = this.parser.parseInline([token]);
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const originalTags = extractHTMLStyleTags(text);
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const injectedTags = token.injectedTags;
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const tags = mergeHTMLTags(originalTags, injectedTags);
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const openingTag = /(<[^\s<>]+)[^\n<>]*(>.*)/s.exec(text);
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if(openingTag) {
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return `${openingTag[1]}` +
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`${tags.classes ? ` class="${tags.classes}"` : ''}` +
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`${tags.id ? ` id="${tags.id}"` : ''}` +
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`${!_.isEmpty(tags.styles) ? ` style="${Object.entries(tags.styles).map(([key, value])=>`${key}:${value};`).join(' ')}"` : ''}` +
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`${!_.isEmpty(tags.attributes) ? ` ${Object.entries(tags.attributes).map(([key, value])=>`${key}="${value}"`).join(' ')}` : ''}` +
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`${openingTag[2]}`; // parse to turn child tokens into HTML
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}
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return text;
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}
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};
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const mustacheInjectBlock = {
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extensions : [{
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name : 'mustacheInjectBlock',
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level : 'block',
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start(src) { return src.match(/\n *{[^{\n]/m)?.index; }, // Hint to Marked.js to stop and check for a match
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tokenizer(src, tokens) {
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const inlineRegex = /^ *{(?=((?:[:=](?:"['\w,\-+*/()#%=?. ]*"|[\w\-+*/()#%.]*)|[^"=':{}\s]*)*))\1}/ym;
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const match = inlineRegex.exec(src);
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if(match) {
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const lastToken = tokens[tokens.length - 1];
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if(!lastToken || lastToken.type == 'mustacheInjectBlock')
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return false;
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lastToken.originalType = 'mustacheInjectBlock';
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lastToken.injectedTags = processStyleTags(match[1]);
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return {
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type : 'mustacheInjectBlock', // Should match "name" above
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raw : match[0], // Text to consume from the source
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text : ''
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};
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}
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},
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renderer(token) {
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if(!token.originalType){
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return;
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}
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token.type = token.originalType;
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const text = this.parser.parse([token]);
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const originalTags = extractHTMLStyleTags(text);
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const injectedTags = token.injectedTags;
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const tags = mergeHTMLTags(originalTags, injectedTags);
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const openingTag = /(<[^\s<>]+)[^\n<>]*(>.*)/s.exec(text);
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if(openingTag) {
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return `${openingTag[1]}` +
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`${tags.classes ? ` class="${tags.classes}"` : ''}` +
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`${tags.id ? ` id="${tags.id}"` : ''}` +
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`${!_.isEmpty(tags.styles) ? ` style="${Object.entries(tags.styles).map(([key, value])=>`${key}:${value};`).join(' ')}"` : ''}` +
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`${!_.isEmpty(tags.attributes) ? ` ${Object.entries(tags.attributes).map(([key, value])=>`${key}="${value}"`).join(' ')}` : ''}` +
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`${openingTag[2]}`; // parse to turn child tokens into HTML
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}
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return text;
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}
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}],
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walkTokens(token) {
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// After token tree is finished, tag tokens to apply styles to so Renderer can find them
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// Does not work with tables since Marked.js tables generate invalid "tokens", and changing "type" ruins Marked handling that edge-case
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if(token.originalType == 'mustacheInjectBlock' && token.type !== 'table') {
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token.originalType = token.type;
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token.type = 'mustacheInjectBlock';
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}
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}
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};
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const forcedParagraphBreaks = {
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name : 'hardBreaks',
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level : 'block',
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start(src) { return src.match(/\n:+$/m)?.index; }, // Hint to Marked.js to stop and check for a match
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tokenizer(src, tokens) {
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const regex = /^(:+)(?:\n|$)/ym;
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const match = regex.exec(src);
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if(match?.length) {
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return {
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type : 'hardBreaks', // Should match "name" above
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raw : match[0], // Text to consume from the source
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length : match[1].length,
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text : ''
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};
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}
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},
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renderer(token) {
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return `<div class='blank'></div>\n`.repeat(token.length);
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}
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};
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// Emoji options
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// To add more icon fonts, need to do these things
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// 1) Add the font file as .woff2 to themes/fonts/iconFonts folder
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// 2) Create a .less file mapping CSS class names to the font character
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// 3) Create a .js file mapping Autosuggest names to CSS class names
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// 4) Import the .less file into shared/naturalcrit/codeEditor/codeEditor.less
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// 5) Import the .less file into themes/V3/blank.style.less
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// 6) Import the .js file to shared/naturalcrit/codeEditor/autocompleteEmoji.js and add to `emojis` object
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// 7) Import the .js file here to markdown.js, and add to `emojis` object below
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const MarkedEmojiOptions = {
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emojis : {
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...diceFont,
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...elderberryInn,
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...fontAwesome,
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...gameIcons,
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},
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renderer : (token)=>`<i class="${token.emoji}"></i>`
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};
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const tableTerminators = [
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`:+\\n`, // hardBreak
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` *{[^\n]+}`, // blockInjector
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` *{{[^{\n]*\n.*?\n}}` // mustacheDiv
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];
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Marked.use(markedVariables());
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Marked.use(MarkedDefinitionLists());
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Marked.use({ extensions : [forcedParagraphBreaks, mustacheSpans, mustacheDivs, mustacheInjectInline] });
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Marked.use(mustacheInjectBlock);
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Marked.use(MarkedAlignedParagraphs());
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Marked.use(MarkedSubSuperText());
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Marked.use(MarkedNonbreakingSpaces());
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Marked.use({ renderer: renderer, tokenizer: tokenizer, mangle: false });
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Marked.use(MarkedExtendedTables({ interruptPatterns: tableTerminators }), MarkedGFMHeadingId({ globalSlugs: true }),
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MarkedSmartypantsLite(), MarkedEmojis(MarkedEmojiOptions));
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function cleanUrl(href) {
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try {
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href = encodeURI(href).replace(/%25/g, '%');
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} catch {
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return null;
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}
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return href;
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}
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const escapeTest = /[&<>"']/;
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const escapeReplace = /[&<>"']/g;
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const escapeTestNoEncode = /[<>"']|&(?!#?\w+;)/;
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const escapeReplaceNoEncode = /[<>"']|&(?!#?\w+;)/g;
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const escapeReplacements = {
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'&' : '&',
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'<' : '<',
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'>' : '>',
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'"' : '"',
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'\'' : '''
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};
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const getEscapeReplacement = (ch)=>escapeReplacements[ch];
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const escape = function (html, encode) {
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if(encode) {
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if(escapeTest.test(html)) {
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return html.replace(escapeReplace, getEscapeReplacement);
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}
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} else {
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if(escapeTestNoEncode.test(html)) {
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return html.replace(escapeReplaceNoEncode, getEscapeReplacement);
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}
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}
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return html;
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};
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const tagTypes = ['div', 'span', 'a'];
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const tagRegex = new RegExp(`(${
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_.map(tagTypes, (type)=>{
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return `\\<${type}\\b|\\</${type}>`;
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}).join('|')})`, 'g');
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// Special "void" tags that can be self-closed but don't need to be.
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const voidTags = new Set([
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'area', 'base', 'br', 'col', 'command', 'hr', 'img',
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'input', 'keygen', 'link', 'meta', 'param', 'source'
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]);
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const processStyleTags = (string)=>{
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//split tags up. quotes can only occur right after : or =.
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//TODO: can we simplify to just split on commas?
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const tags = string.match(/(?:[^, ":=]+|[:=](?:"[^"]*"|))+/g);
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const id = _.remove(tags, (tag)=>tag.startsWith('#')).map((tag)=>tag.slice(1))[0] || null;
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const classes = _.remove(tags, (tag)=>(!tag.includes(':')) && (!tag.includes('='))).join(' ') || null;
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const attributes = _.remove(tags, (tag)=>(tag.includes('='))).map((tag)=>tag.replace(/="?([^"]*)"?/g, '="$1"'))
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?.filter((attr)=>!attr.startsWith('class="') && !attr.startsWith('style="') && !attr.startsWith('id="'))
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.reduce((obj, attr)=>{
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const index = attr.indexOf('=');
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let [key, value] = [attr.substring(0, index), attr.substring(index + 1)];
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value = value.replace(/"/g, '');
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obj[key.trim()] = value.trim();
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return obj;
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}, {}) || null;
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const styles = tags?.length ? tags.reduce((styleObj, style)=>{
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const index = style.indexOf(':');
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const [key, value] = [style.substring(0, index), style.substring(index + 1)];
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styleObj[key.trim()] = value.replace(/"?([^"]*)"?/g, '$1').trim();
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return styleObj;
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}, {}) : null;
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return {
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id : id,
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classes : classes,
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styles : _.isEmpty(styles) ? null : styles,
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attributes : _.isEmpty(attributes) ? null : attributes
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};
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};
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//Given a string representing an HTML element, extract all of its properties (id, class, style, and other attributes)
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const extractHTMLStyleTags = (htmlString)=>{
|
|
const firstElementOnly = htmlString.split('>')[0];
|
|
const id = firstElementOnly.match(/id="([^"]*)"/)?.[1] || null;
|
|
const classes = firstElementOnly.match(/class="([^"]*)"/)?.[1] || null;
|
|
const styles = firstElementOnly.match(/style="([^"]*)"/)?.[1]
|
|
?.split(';').reduce((styleObj, style)=>{
|
|
if(style.trim() === '') return styleObj;
|
|
const index = style.indexOf(':');
|
|
const [key, value] = [style.substring(0, index), style.substring(index + 1)];
|
|
styleObj[key.trim()] = value.trim();
|
|
return styleObj;
|
|
}, {}) || null;
|
|
const attributes = firstElementOnly.match(/[a-zA-Z]+="[^"]*"/g)
|
|
?.filter((attr)=>!attr.startsWith('class="') && !attr.startsWith('style="') && !attr.startsWith('id="'))
|
|
.reduce((obj, attr)=>{
|
|
const index = attr.indexOf('=');
|
|
const [key, value] = [attr.substring(0, index), attr.substring(index + 1)];
|
|
obj[key.trim()] = value.replace(/"/g, '');
|
|
return obj;
|
|
}, {}) || null;
|
|
|
|
return {
|
|
id : id,
|
|
classes : classes,
|
|
styles : _.isEmpty(styles) ? null : styles,
|
|
attributes : _.isEmpty(attributes) ? null : attributes
|
|
};
|
|
};
|
|
|
|
const mergeHTMLTags = (originalTags, newTags)=>{
|
|
return {
|
|
id : newTags.id || originalTags.id || null,
|
|
classes : [originalTags.classes, newTags.classes].join(' ').trim() || null,
|
|
styles : Object.assign(originalTags.styles ?? {}, newTags.styles ?? {}),
|
|
attributes : Object.assign(originalTags.attributes ?? {}, newTags.attributes ?? {})
|
|
};
|
|
};
|
|
|
|
const Markdown = {
|
|
marked : Marked,
|
|
render : (rawBrewText, pageNumber=0)=>{
|
|
setMarkedVariablePage(pageNumber);
|
|
|
|
const lastPageNumber = pageNumber > 0 ? getMarkedVariable('HB_pageNumber', pageNumber - 1) : 0;
|
|
setMarkedVariable('HB_pageNumber', //Add document variables for this page
|
|
!isNaN(Number(lastPageNumber)) ? Number(lastPageNumber) + 1 : lastPageNumber,
|
|
pageNumber);
|
|
|
|
if(pageNumber==0) MarkedGFMResetHeadingIDs();
|
|
|
|
rawBrewText = rawBrewText.replace(/^\\column(?:break)?$/gm, `\n<div class='columnSplit'></div>\n`);
|
|
|
|
const opts = Marked.defaults;
|
|
|
|
rawBrewText = opts.hooks.preprocess(rawBrewText);
|
|
const tokens = Marked.lexer(rawBrewText, opts);
|
|
|
|
Marked.walkTokens(tokens, opts.walkTokens);
|
|
|
|
const html = Marked.parser(tokens, opts);
|
|
return opts.hooks.postprocess(html);
|
|
},
|
|
|
|
validate : (rawBrewText)=>{
|
|
const errors = [];
|
|
const leftovers = _.reduce(rawBrewText.split('\n'), (acc, line, _lineNumber)=>{
|
|
const lineNumber = _lineNumber + 1;
|
|
const matches = line.match(tagRegex);
|
|
if(!matches || !matches.length) return acc;
|
|
|
|
_.each(matches, (match)=>{
|
|
_.each(tagTypes, (type)=>{
|
|
if(match == `<${type}`){
|
|
acc.push({
|
|
type : type,
|
|
line : lineNumber
|
|
});
|
|
}
|
|
if(match === `</${type}>`){
|
|
// Closing tag: Check we expect it to be closed.
|
|
// The accumulator may contain a sequence of voidable opening tags,
|
|
// over which we skip before checking validity of the close.
|
|
while (acc.length && voidTags.has(_.last(acc).type) && _.last(acc).type != type) {
|
|
acc.pop();
|
|
}
|
|
// Now check that what remains in the accumulator is valid.
|
|
if(!acc.length){
|
|
errors.push({
|
|
line : lineNumber,
|
|
type : type,
|
|
text : 'Unmatched closing tag',
|
|
id : 'CLOSE'
|
|
});
|
|
} else if(_.last(acc).type == type){
|
|
acc.pop();
|
|
} else {
|
|
errors.push({
|
|
line : `${_.last(acc).line} to ${lineNumber}`,
|
|
type : type,
|
|
text : 'Type mismatch on closing tag',
|
|
id : 'MISMATCH'
|
|
});
|
|
acc.pop();
|
|
}
|
|
}
|
|
});
|
|
});
|
|
return acc;
|
|
}, []);
|
|
|
|
_.each(leftovers, (unmatched)=>{
|
|
errors.push({
|
|
line : unmatched.line,
|
|
type : unmatched.type,
|
|
text : 'Unmatched opening tag',
|
|
id : 'OPEN'
|
|
});
|
|
});
|
|
|
|
return errors;
|
|
},
|
|
};
|
|
|
|
export default Markdown;
|
|
|