update

src/generators/latex/helpers/convert.ts

@@ -0,0 +1,81 @@
+import { existsSync } from 'fs-extra';
+import { decode } from 'html-entities';
+import { marked } from 'marked';
+
+const latexTypes = [
+  '',
+  'section',
+  'subsection',
+  'paragraph',
+];
+
+const sanitize = (text?: string) => {
+  if (!text) return '';
+  return decode(text)
+    .replace('&', '\\&')
+    .replace('_', '\\_')
+    .replace(/([^\\])\}/g, '$1\\}')
+    .replace(/([^\\])\{/g, '$1\\{')
+    .replace(/[^\\]\[/g, '\\[')
+    .replace('#', '\\#');
+};
+
+const renderer = (outerDepth: number) =>  ({
+  heading: (text: string, depth: number) => {
+    return `\\${latexTypes[outerDepth + depth]}{${sanitize(text)}}\n\n`
+  },
+  code: (input: string) => {
+    return `
+    \\begin{lstlisting}
+    ${input}
+    \\end{lstlisting}
+    `
+  },
+  text: (input: string) => {
+    return sanitize(input);
+  },
+  paragraph: (input: string) => {
+    return `${input}\n\n`
+  },
+  list: (input: string) => {
+    return `
+    \\begin{itemize}
+    ${input}
+    \\end{itemize}
+    `
+  },
+  listitem: (input: string) => {
+    return `\\item{${input}}`
+  },
+  link: (href: string, text: string) => {
+    if (!text || text === href) {
+      return `\\url{${sanitize(href)}}`;
+    }
+    return `${sanitize(text)} (\\url{${sanitize(href)}})`
+  },
+  strong: (text: string) => {
+    return `\\textbf{${sanitize(text)}}`
+  },
+  em: (text: string) => {
+    return `\\textbf{${sanitize(text)}}`
+  },
+  codespan: (code: string) => {
+    return `\\texttt{${sanitize(code)}}`
+  },
+  image: (link: string) => {
+    if (!existsSync(link)) {
+      return 'Online image not supported';
+    }
+    return `\\begin{figure}[h!]
+  \\includegraphics[width=0.5\\textwidth]{${link}}
+  \\centering
+\\end{figure}
+`
+  },
+});
+
+
+export const fromMarkdown = (md: string, depth: number) => {
+  marked.use({ renderer: renderer(depth) });
+  return marked.parse(md);
+}