working rss feed to nostr publish

2023-11-24 00:43:28 -05:00
parent 06edcb57ae
commit 88d2f9cfec
8396 changed files with 783105 additions and 0 deletions
@@ -0,0 +1,20 @@
+import { alphabetByValue, bitsPerByte, bitsPerLetter, maxLetterValue } from "./constants.browser";
+export function toBase64(input) {
+    let str = "";
+    for (let i = 0; i < input.length; i += 3) {
+        let bits = 0;
+        let bitLength = 0;
+        for (let j = i, limit = Math.min(i + 3, input.length); j < limit; j++) {
+            bits |= input[j] << ((limit - j - 1) * bitsPerByte);
+            bitLength += bitsPerByte;
+        }
+        const bitClusterCount = Math.ceil(bitLength / bitsPerLetter);
+        bits <<= bitClusterCount * bitsPerLetter - bitLength;
+        for (let k = 1; k <= bitClusterCount; k++) {
+            const offset = (bitClusterCount - k) * bitsPerLetter;
+            str += alphabetByValue[(bits & (maxLetterValue << offset)) >> offset];
+        }
+        str += "==".slice(0, 4 - bitClusterCount);
+    }
+    return str;
+}