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cheeseTown.ts
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cheeseTown.ts
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import { parse } from "https://deno.land/std/encoding/csv.ts";
interface Syntax {
regex: RegExp;
convert(...args: string[]): string | Promise<string>;
}
const parser: Syntax[] = [
{
regex: /^\[style\]{(.+)}/,
convert: (_, url) => {
return `<link rel="stylesheet" href="${url}">`;
},
},
{
regex: /^\[title\]{(.+)}(.+)/,
convert: (_, author, word) => {
return `<h1>${word.trim()}</h1><p>${author.trim()}</p>`;
},
},
{
regex: /^\[chapter\](.+)/,
convert: (_, word) => {
return `<h2>${word.trim()}</h2>`;
},
},
{
regex: /^\[section\](.+)/,
convert: (_, word) => {
return `<h3>${word.trim()}</h3>`;
},
},
{
regex: /^\[subsection\](.+)/,
convert: (_, word) => {
return `<h4>${word.trim()}</h4>`;
},
},
{
regex: /^\[list\](.+)/,
convert: (_, text) => {
const items = text.split("|");
return `<ul>${
items.map((item) => `<li>${item.trim()}</li>`).join("")
}</ul>`;
},
},
{
regex: /^\[picture\]\{(.+)\}(.+)/,
convert: (_, url, caption) => {
return `<figure><img src="${url.trim()}"><figcaption>${caption.trim()}</figcaption></figure>`;
},
},
{
regex: /^\[table\]\{(.+)\}(.+)/,
convert: async (_, url, caption) => {
const text = await Deno.readTextFile(url);
const [head, ...body] = await parse(text) as string[][];
return `<figure><figcaption>${caption.trim()}</figcaption><table><thead><tr>${
head.map((e: string) => `<th>${e.trim()}</th>`).join("")
}</tr></thead><tbody>${
body.map((row: string[]) =>
`<tr>${
row.map((e: string) => `<td>${e.trim()}</td>`).join("")
}</tr>`
)
.join("")
}</tbody></table>`;
},
},
];
const cheeseTownToHtml = async (markup: string): Promise<string> => {
const lines = markup
.replace(/[<>]/g, (c) => (c === "<" ? "<" : ">"))
.split("\n")
.filter((e) => e.trim() !== "");
const html = (await Promise.all(lines
.map(async (line) => {
for (const syntax of parser) {
const match = line.match(syntax.regex);
if (match !== null) return await syntax.convert(...match);
}
return `<p>${line.trim()}</p>`;
})))
.join("");
return new Promise((res) => res(html));
};
export { cheeseTownToHtml };