From 387f4de3f27f1489c1c851d5becd369752e2147d Mon Sep 17 00:00:00 2001
From: OFF0 <offbyn@protonmail.com>
Date: Tue, 20 Dec 2022 21:28:32 +0100
Subject: [PATCH] content: parse lightning addresses and render as links

LN addresses use too much screen real estate, render as link seems
more useful.

lightning links are words starting with the following prefix:
lnbc for Bitcoin mainnet, lntb for testnet, lntbs for signet, and
lnbcrt for regtest

https://github.com/lightning/bolts/blob/master/11-payment-encoding.md#human-readable-part
---
 src/domutil.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/domutil.js b/src/domutil.js
index fd76c12..26e2964 100644
--- a/src/domutil.js
+++ b/src/domutil.js
@@ -59,6 +59,11 @@ export function parseTextContent(string) {
         .map(line => {
             const words = line.split(' ');
             return words.map(word => {
+                if (word.match(/^ln(tbs?|bcr?t?)[a-z0-9]+$/g)) {
+                    return elem('a', {
+                        href: `lightning:${word}`
+                    }, `lightning:${word.slice(0, 24)}…`);
+                }
                 if (!word.match(/(https?:\/\/|www\.)\S*/)) {
                     return word;
                 }