playwright/utils/doclint/generatePythonSnippets.js
2021-01-14 07:48:56 -08:00

121 lines
3.6 KiB
JavaScript

// @ts-check
const fs = require("fs");
const md = require("../markdown");
/**
* @param {string[]} input
* @param {boolean} isSync
*/
function transformValue(input, isSync) {
const out = [];
const suffix = [];
for (let line of input) {
let match = line.match(/const { (\w+) } = require\('playwright'\);/);
if (match) {
if (isSync) {
out.push('from playwright.sync_api import sync_playwright');
out.push('');
out.push('def run(playwright):');
out.push(` ${match[1]} = playwright.${match[1]}`);
suffix.push(``);
suffix.push(`with sync_playwright() as playwright:`);
suffix.push(` run(playwright)`);
} else {
out.push('import asyncio');
out.push('from playwright.async_api import async_playwright');
out.push('');
out.push('async def run(playwright):');
out.push(` ${match[1]} = playwright.${match[1]}`);
suffix.push(``);
suffix.push(`async def main():`);
suffix.push(` async with async_playwright() as playwright:`);
suffix.push(` await run(playwright)`);
suffix.push(`asyncio.run(main())`);
}
continue;
}
if (line.trim() === '(async () => {' || line.trim() === '})();')
continue;
if (!line)
continue;
if (line.trim() === '}')
continue;
line = line.replace(/\$\$eval/g, 'eval_on_selector_all');
line = line.replace(/\$eval/g, 'eval_on_selector');
line = line.replace(/\$\$/g, 'query_selector_all');
line = line.replace(/\$/g, 'query_selector');
line = line.replace(/([a-zA-Z$]+)/g, (match, p1) => toSnakeCase(p1));
line = line.replace(/try {/, 'try:');
line = line.replace(/async \(([^)]+)\) => {/, 'lambda $1:');
line = line.replace(/} catch \(e\) {/, 'except Error as e:');
line = line.replace(/;$/, '');
line = line.replace(/ /g, ' ');
line = line.replace(/'/g, '"');
line = line.replace(/const /g, '');
line = line.replace(/{\s*(\w+):\s*([^} ]+)\s*}/, "$1=$2");
line = line.replace(/\/\/ /, "# ");
line = line.replace(/\(\) => /, 'lambda: ');
line = line.replace(/console.log/, 'print');
line = line.replace(/function /, 'def ');
line = line.replace(/{$/, '');
if (isSync)
line = line.replace(/await /g, "")
out.push(line)
}
return [...out, ...suffix].join("\n");
}
/**
*
* @param {md.MarkdownNode} node
* @param {boolean} isSync
*/
function generateComment(node, isSync) {
const commentNode = md.clone(node)
commentNode.codeLang = isSync ? "python sync" : "python async";
commentNode.lines = ['# FIXME', ...transformValue(node.lines, isSync).split("\n")];
return commentNode;
}
/**
*
* @param {md.MarkdownNode[]} spec
*/
function multiplyComment(spec) {
const children = []
for (const node of (spec || [])) {
if (node.codeLang === "js")
children.push(node, generateComment(node, false), generateComment(node, true));
else
children.push(node);
}
return children;
}
/**
* @param {string} name
*/
function toSnakeCase(name) {
const toSnakeCaseRegex = /((?<=[a-z0-9])[A-Z]|(?!^)[A-Z](?=[a-z]))/g;
return name.replace(toSnakeCaseRegex, `_$1`).toLowerCase();
}
for (const name of fs.readdirSync("docs/src")) {
if (!name.endsWith(".md"))
continue;
const inputFile = `docs/src/${name}`;
const fileContent = fs.readFileSync(inputFile).toString();
const nodes = md.parse(fileContent);
md.visitAll(nodes, node => {
if (node.children)
node.children = multiplyComment(node.children);
});
const out = md.render(nodes, 120);
fs.writeFileSync(inputFile, out);
}