1 files changed, 39 insertions, 0 deletions
diff --git a/vanilla/node_modules/@exodus/bytes/base32.js b/vanilla/node_modules/@exodus/bytes/base32.js
new file mode 100644
index 0000000..1c45766
--- /dev/null
+++ b/vanilla/node_modules/@exodus/bytes/base32.js
@@ -0,0 +1,39 @@
+import { assertEmptyRest } from './assert.js'
+import { typedView } from './array.js'
+import { E_STRING } from './fallback/_utils.js'
+import * as js from './fallback/base32.js'
+
+// See https://datatracker.ietf.org/doc/html/rfc4648
+
+// 8 chars per 5 bytes
+
+export const toBase32 = (arr, { padding = false } = {}) => js.toBase32(arr, false, padding)
+export const toBase32hex = (arr, { padding = false } = {}) => js.toBase32(arr, true, padding)
+
+// By default, valid padding is accepted but not required
+export function fromBase32(str, options) {
+  if (!options) return fromBase32common(str, false, 'both', 'uint8', null)
+  const { format = 'uint8', padding = 'both', ...rest } = options
+  return fromBase32common(str, false, padding, format, rest)
+}
+
+export function fromBase32hex(str, options) {
+  if (!options) return fromBase32common(str, true, 'both', 'uint8', null)
+  const { format = 'uint8', padding = 'both', ...rest } = options
+  return fromBase32common(str, true, padding, format, rest)
+}
+
+function fromBase32common(str, isBase32Hex, padding, format, rest) {
+  if (typeof str !== 'string') throw new TypeError(E_STRING)
+  if (rest !== null) assertEmptyRest(rest)
+
+  if (padding === true) {
+    if (str.length % 8 !== 0) throw new SyntaxError(js.E_PADDING)
+  } else if (padding === false) {
+    if (str.endsWith('=')) throw new SyntaxError('Did not expect padding in base32 input')
+  } else if (padding !== 'both') {
+    throw new TypeError('Invalid padding option')
+  }
+
+  return typedView(js.fromBase32(str, isBase32Hex), format)
+}