Move apps/cory/ => apps/. Going to change import and export to support this.

git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4163 ed5197a5-7fde-0310-b194-c3ffbd925b24

apps/ssb/tf-utils.js

@@ -0,0 +1,48 @@
+import * as linkify from './commonmark-linkify.js';
+import * as hashtagify from './commonmark-hashtag.js';
+
+export function markdown(md) {
+	var reader = new commonmark.Parser({safe: true});
+	var writer = new commonmark.HtmlRenderer();
+	var parsed = reader.parse(md || '');
+	parsed = linkify.transform(parsed);
+	parsed = hashtagify.transform(parsed);
+	var walker = parsed.walker();
+	var event, node;
+	while ((event = walker.next())) {
+		node = event.node;
+		if (event.entering) {
+			if (node.type == 'link') {
+				if (node.destination.startsWith('@') &&
+					node.destination.endsWith('.ed25519')) {
+					node.destination = '#' + node.destination;
+				} else if (node.destination.startsWith('%') &&
+					node.destination.endsWith('.sha256')) {
+					node.destination = '#' + node.destination;
+				} else if (node.destination.startsWith('&') &&
+					node.destination.endsWith('.sha256')) {
+					node.destination = '/' + node.destination + '/view';
+				}
+			} else if (node.type == 'image') {
+				if (node.destination.startsWith('&')) {
+					node.destination = '/' + node.destination + '/view';
+				}
+			}
+		}
+	}
+	return writer.render(parsed);
+}
+
+export function human_readable_size(bytes) {
+	let v = bytes;
+	let u = 'B';
+	for (let unit of ['kB', 'MB', 'GB']) {
+		if (v > 1024) {
+			v /= 1024;
+			u = unit;
+		} else {
+			break;
+		}
+	}
+	return `${Math.round(v * 10) / 10} ${u}`;
+}