From 60867fb030bae582082340ead7dbc7efdc2f5398 Mon Sep 17 00:00:00 2001
From: 8cy <50817549+8cy@users.noreply.github.com>
Date: Fri, 3 Apr 2020 02:37:42 -0700
Subject: 2020/04/03, 02:34, v1.2.0

---
 node_modules/needle/lib/decoder.js | 53 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 node_modules/needle/lib/decoder.js

(limited to 'node_modules/needle/lib/decoder.js')

diff --git a/node_modules/needle/lib/decoder.js b/node_modules/needle/lib/decoder.js
new file mode 100644
index 0000000..d82bb5a
--- /dev/null
+++ b/node_modules/needle/lib/decoder.js
@@ -0,0 +1,53 @@
+var iconv,
+    inherits  = require('util').inherits,
+    stream    = require('stream');
+
+var regex = /(?:charset|encoding)\s*=\s*['"]? *([\w\-]+)/i;
+
+inherits(StreamDecoder, stream.Transform);
+
+function StreamDecoder(charset) {
+  if (!(this instanceof StreamDecoder))
+    return new StreamDecoder(charset);
+
+  stream.Transform.call(this, charset);
+  this.charset = charset;
+  this.parsed_chunk = false;
+}
+
+StreamDecoder.prototype._transform = function(chunk, encoding, done) {
+  var res, found;
+
+  // try get charset from chunk, just once
+  if (this.charset == 'iso-8859-1' && !this.parsed_chunk) {
+    this.parsed_chunk = true;
+
+    var matches = regex.exec(chunk.toString());
+    if (matches) {
+      found = matches[1].toLowerCase();
+      this.charset = found == 'utf-8' ? 'utf8' : found;
+    }
+  }
+
+  try {
+    res = iconv.decode(chunk, this.charset);
+  } catch(e) { // something went wrong, just return original chunk
+    res = chunk;
+  }
+
+  this.push(res);
+  done();
+}
+
+module.exports = function(charset) {
+  try {
+    if (!iconv) iconv = require('iconv-lite');
+  } catch(e) {
+    /* iconv not found */
+  }
+
+  if (iconv)
+    return new StreamDecoder(charset);
+  else
+    return new stream.PassThrough;
+}
-- 
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