base64: merge into twtstr/env

1 files changed, 0 insertions, 75 deletions

diff --git a/src/js/base64.nim b/src/js/base64.nim
deleted file mode 100644
index f9137fb3..00000000
--- a/src/js/base64.nim
+++ /dev/null
@@ -1,75 +0,0 @@
-import js/domexception
-import monoucha/javascript
-import monoucha/jstypes
-import monoucha/quickjs
-import types/opt
-import utils/twtstr
-
-# atob and btoa convert Latin-1 to base64 and vice versa. (And throw on
-# anything above latin-1.)
-
-proc atob*(data: string): DOMResult[NarrowString] =
-  # Note: the actual atob implementation (atob0) is in twtstr.
-  let r = atob0(data)
-  if r.isNone:
-    return errDOMException($r.error, "InvalidCharacterError")
-  return ok(NarrowString(r.get))
-
-const AMap = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"
-
-func btoa*(s: var string; data: openArray[uint8]) =
-  var i = 0
-  let endw = data.len - 2
-  while i < endw:
-    let n = uint32(data[i]) shl 16 or
-      uint32(data[i + 1]) shl 8 or
-      uint32(data[i + 2])
-    i += 3
-    s &= AMap[n shr 18 and 0x3F]
-    s &= AMap[n shr 12 and 0x3F]
-    s &= AMap[n shr 6 and 0x3F]
-    s &= AMap[n and 0x3F]
-  if i < data.len:
-    let b1 = uint32(data[i])
-    inc i
-    if i < data.len:
-      let b2 = uint32(data[i])
-      s &= AMap[b1 shr 2]                      # 6 bits of b1
-      s &= AMap[b1 shl 4 and 0x3F or b2 shr 4] # 2 bits of b1 | 4 bits of b2
-      s &= AMap[b2 shl 2 and 0x3F]             # 4 bits of b2
-    else:
-      s &= AMap[b1 shr 2]          # 6 bits of b1
-      s &= AMap[b1 shl 4 and 0x3F] # 2 bits of b1
-      s &= '='
-    s &= '='
-
-func btoa*(data: openArray[uint8]): string =
-  if data.len == 0:
-    return ""
-  var L = data.len div 3 * 4
-  if (let rem = data.len mod 3; rem) > 0:
-    L += 3 - rem
-  var s = newStringOfCap(L)
-  s.btoa(data)
-  return s
-
-func btoa*(data: string): string =
-  return btoa(data.toOpenArrayByte(0, data.len - 1))
-
-proc btoa*(ctx: JSContext; data: JSValue): DOMResult[string] =
-  let data = JS_ToString(ctx, data)
-  if JS_IsException(data):
-    return err()
-  assert JS_IsString(data)
-  if JS_IsStringWideChar(data):
-    JS_FreeValue(ctx, data)
-    return errDOMException("Invalid character in string",
-      "InvalidCharacterError")
-  let len = int(JS_GetStringLength(data))
-  if len == 0:
-    JS_FreeValue(ctx, data)
-    return ok("")
-  let buf = JS_GetNarrowStringBuffer(data)
-  let res = btoa(buf.toOpenArray(0, len - 1))
-  JS_FreeValue(ctx, data)
-  return ok(res)