68 lines
2.2 KiB
JavaScript
68 lines
2.2 KiB
JavaScript
const rho = require('rho');
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const { prettyPrint } = require('html');
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const defaultUnformattedTags = [
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'a', 'span', 'bdo', 'em', 'strong', 'dfn', 'code', 'samp', 'kbd', 'var', 'cite', 'abbr', 'acronym',
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'q', 'sub', 'sup', 'tt', 'i', 'b', 'big', 'small', 'u', 's', 'strike', 'font', 'ins', 'del', 'pre',
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'address', 'dt', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'];
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/**
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* @dgService renderMarkdown
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* @description
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* Render the markdown in the given string as HTML.
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*/
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module.exports = function renderMarkdown() {
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// TODO(petebd): We might want to remove the leading whitespace from the code
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// block before it gets to the markdown code render function
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// We need to teach Rho about inline tags so that it doesn't try to process
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// the inside of the tag
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const emitNormal = rho.InlineCompiler.prototype.emitNormal;
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rho.InlineCompiler.prototype.emitNormal = function(walk) {
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if (this.emitText(walk)) return;
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if (tryDgeniInlineTag(this, walk)) return;
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emitNormal.call(this, walk);
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};
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rho.BlockCompiler.prototype.emitBlock = function(walk) {
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walk.skipBlankLines();
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this.countBlockIndent(walk);
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if (this.tryUnorderedList(walk)) return;
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if (this.tryOrderedList(walk)) return;
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if (this.tryDefinitionList(walk)) return;
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if (this.tryHeading(walk)) return;
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if (this.tryCodeBlock(walk)) return;
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if (this.tryDiv(walk)) return;
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if (this.tryHtml(walk)) return;
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if (tryDgeniInlineTag(this, walk, true)) return;
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if (this.tryHrTable(walk)) return;
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this.emitParagraph(walk);
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};
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function tryDgeniInlineTag(compiler, walk, isBlock) {
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if (!walk.at('{@')) return false;
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const startIdx = walk.position;
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var endIdx = walk.indexOf('}');
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if (endIdx === null) return false;
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if (isBlock) compiler.out.push('<div>');
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compiler.out.push(walk.substring(startIdx, endIdx + 1));
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if (isBlock) compiler.out.push('</div>\n');
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walk.startFrom(endIdx + 2);
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return true;
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};
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renderMarkdownImpl.unformattedTags = [];
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return renderMarkdownImpl;
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function renderMarkdownImpl(content) {
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const rawHtml = new rho.BlockCompiler(rho.options).toHtml(content);
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return prettyPrint(rawHtml, { indent_size: 2, unformatted: [...defaultUnformattedTags, ...renderMarkdownImpl.unformattedTags]});
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};
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}; |