e895d54224PR-URL: https://github.com/nodejs/node/pull/19539 Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com> Reviewed-By: Luigi Pinca <luigipinca@gmail.com> Reviewed-By: Daijiro Wachi <daijiro.wachi@gmail.com>
38 lines
1.1 KiB
JavaScript
38 lines
1.1 KiB
JavaScript
'use strict';
|
|
|
|
module.exports = processIncludes;
|
|
|
|
const path = require('path');
|
|
const fs = require('fs');
|
|
|
|
const includeExpr = /^@include\s+([\w-]+)(?:\.md)?$/gmi;
|
|
const commentExpr = /^@\/\/.*$/gmi;
|
|
|
|
function processIncludes(inputFile, input, cb) {
|
|
const includes = input.match(includeExpr);
|
|
if (includes === null)
|
|
return cb(null, input.replace(commentExpr, ''));
|
|
|
|
let errState = null;
|
|
let incCount = includes.length;
|
|
|
|
includes.forEach((include) => {
|
|
const fname = include.replace(includeExpr, '$1.md');
|
|
const fullFname = path.resolve(path.dirname(inputFile), fname);
|
|
|
|
fs.readFile(fullFname, 'utf8', function(er, inc) {
|
|
if (errState) return;
|
|
if (er) return cb(errState = er);
|
|
incCount--;
|
|
|
|
// Add comments to let the HTML generator know
|
|
// how the anchors for headings should look like.
|
|
inc = `<!-- [start-include:${fname}] -->\n` +
|
|
`${inc}\n<!-- [end-include:${fname}] -->\n`;
|
|
input = input.split(`${include}\n`).join(`${inc}\n`);
|
|
|
|
if (incCount === 0)
|
|
return cb(null, input.replace(commentExpr, ''));
|
|
});
|
|
});
|
|
}
|