117 lines
2.8 KiB
JavaScript
117 lines
2.8 KiB
JavaScript
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// Run this to update the ToCs in the TRs
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const { generateGfmToc } = require('@not-dalia/gfm-toc');
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const fs = require('fs').promises;
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const path = require('path');
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const dir = '../../../docs/ldml';
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const trfile = /^tr35.*\.md$/;
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const contentsStart = /^## <a name="Contents".*$/; // beginning of contents: always has #Contents
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const contentsEnd = /^## .*$/; // end of contents: the next ##
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// ToC entries we don't want, for deletion
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const tocDelete = [
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/^\* \[.*Unicode Technical Standard.*$/,
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/^ \* \[_Summary_\].*$/,
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/^ \* \[_Status_\].*$/,
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/^\* \[Parts\].*$/,
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/^\* \[Contents of.*$/
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];
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const gfmOpts = {
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// see gfm-toc docs
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includeUnlinked: true,
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createLinks: true,
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};
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/**
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*
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* @returns promise to array of source files
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*/
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async function getSrcFiles() {
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const f = [];
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const items = await fs.opendir(dir);
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for await (const dirent of items) {
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if (trfile.test(dirent.name)) {
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f.push(path.join(dir, dirent.name));
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}
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}
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return f;
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}
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/**
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* Process a single file
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* @param {String} f
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* @returns
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*/
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async function processFile(f) {
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console.log('Reading: ' + f);
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const contents = await fs.readFile(f, 'utf-8');
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// now, reinsert
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const lines = contents.split('\n');
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// new lines go into this array.
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const out = [];
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let i;
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// go through the lines, looking for the header to the old ToC.
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for (i = 0; i < lines.length; i++) {
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out.push(lines[i]); // Emit the header line for the old ToC
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if (contentsStart.test(lines[i])) {
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break;
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}
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}
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if (i == lines.length) {
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throw Error(`in ${f}: ran out of lines looking for start of ToC`);
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}
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i++;
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out.push(''); // blank line before ToC
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// Generate the ToC
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let toc = generateGfmToc(contents, gfmOpts);
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// Delete any patterns in tocDelete from the ToC
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for (pat of tocDelete) {
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if (pat.test(toc[0])) {
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toc = toc.splice(1); // delete first entry
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}
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}
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// Push the whole ToC out
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out.push(toc.join('\n'));
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out.push('');
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// Now, look for the end of the old ToC
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// (the next section following the old ToC)
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for (; i < lines.length; i++) {
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if (contentsEnd.test(lines[i])) {
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break;
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}
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}
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if (i == lines.length) {
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throw Error(`in ${f}: ran out of lines looking for end of ToC`);
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}
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// Write out all remaining lines in the file.
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for (; i < lines.length; i++) {
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out.push(lines[i]);
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}
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// Write the whole file to disk.
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await fs.writeFile(f, out.join('\n'), 'utf-8');
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return {
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name: path.basename(f),
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lines: out.length,
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toclines: toc.length
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};
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}
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// Process everything.
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getSrcFiles()
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.then(f => Promise.all(f.map(p => processFile(p))))
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.then(x => console.dir(x), console.error);
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