37 lines
1.4 KiB
TypeScript
37 lines
1.4 KiB
TypeScript
/**
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* Based on https://github.com/dwengovzw/Learning-Object-Repository/blob/main/app/processors/markdown/markdown_processor.js
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*/
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import { marked } from 'marked';
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import InlineImageProcessor from '../image/inline-image-processor.js';
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import { DwengoContentType } from '../content-type.js';
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import dwengoMarkedRenderer from './dwengo-marked-renderer.js';
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import { StringProcessor } from '../string-processor.js';
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import { ProcessingError } from '../processing-error.js';
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class MarkdownProcessor extends StringProcessor {
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constructor() {
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super(DwengoContentType.TEXT_MARKDOWN);
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}
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static replaceLinks(html: string): string {
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const proc = new InlineImageProcessor();
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html = html.replace(
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/<img.*?src="(.*?)".*?(alt="(.*?)")?.*?(title="(.*?)")?.*?>/g,
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(_match: string, src: string, _alt: string, _altText: string, _title: string, _titleText: string) => proc.render(src)
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);
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return html;
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}
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override renderFn(mdText: string): string {
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try {
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marked.use({ renderer: dwengoMarkedRenderer });
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const html = marked(mdText, { async: false });
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return MarkdownProcessor.replaceLinks(html); // Replace html image links path
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} catch (e: unknown) {
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throw new ProcessingError('Unknown error while processing markdown: ' + e);
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}
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}
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}
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export { MarkdownProcessor };
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