1 files changed, 117 insertions, 0 deletions
diff --git a/tools/node_modules/eslint/node_modules/chardet/index.js b/tools/node_modules/eslint/node_modules/chardet/index.js
new file mode 100644
index 0000000000..e5bceddd6c
--- /dev/null
+++ b/tools/node_modules/eslint/node_modules/chardet/index.js
@@ -0,0 +1,117 @@
+
+var fs = require('fs');
+
+var utf8  = require('./encoding/utf8'),
+  unicode = require('./encoding/unicode'),
+  mbcs    = require('./encoding/mbcs'),
+  sbcs    = require('./encoding/sbcs'),
+  iso2022 = require('./encoding/iso2022');
+
+var self = this;
+
+var recognisers = [
+  new utf8,
+  new unicode.UTF_16BE,
+  new unicode.UTF_16LE,
+  new unicode.UTF_32BE,
+  new unicode.UTF_32LE,
+  new mbcs.sjis,
+  new mbcs.big5,
+  new mbcs.euc_jp,
+  new mbcs.euc_kr,
+  new mbcs.gb_18030,
+  new iso2022.ISO_2022_JP,
+  new iso2022.ISO_2022_KR,
+  new iso2022.ISO_2022_CN,
+  new sbcs.ISO_8859_1,
+  new sbcs.ISO_8859_2,
+  new sbcs.ISO_8859_5,
+  new sbcs.ISO_8859_6,
+  new sbcs.ISO_8859_7,
+  new sbcs.ISO_8859_8,
+  new sbcs.ISO_8859_9,
+  new sbcs.windows_1251,
+  new sbcs.windows_1256,
+  new sbcs.KOI8_R
+];
+
+module.exports.detect = function(buffer) {
+
+  // Tally up the byte occurence statistics.
+  var fByteStats = [];
+  for (var i = 0; i < 256; i++)
+    fByteStats[i] = 0;
+
+  for (var i = buffer.length - 1; i >= 0; i--)
+    fByteStats[buffer[i] & 0x00ff]++;
+
+  var fC1Bytes = false;
+  for (var i = 0x80; i <= 0x9F; i += 1) {
+    if (fByteStats[i] != 0) {
+      fC1Bytes = true;
+      break;
+    }
+  }
+
+  var context = {
+    fByteStats:  fByteStats,
+    fC1Bytes:    fC1Bytes,
+    fRawInput:   buffer,
+    fRawLength:  buffer.length,
+    fInputBytes: buffer,
+    fInputLen:   buffer.length
+  };
+
+  var match = recognisers.map(function(rec) {
+    return rec.match(context);
+  }).filter(function(match) {
+    return !!match;
+  }).sort(function(a, b) {
+    return a.confidence - b.confidence;
+  }).pop();
+
+  return match ? match.name : null;
+};
+
+module.exports.detectFile = function(filepath, opts, cb) {
+  if (typeof opts === 'function') {
+    cb = opts;
+    opts = undefined;
+  }
+
+  var fd;
+
+  var handler = function(err, buffer) {
+    if (fd) {
+      fs.closeSync(fd);
+    }
+
+    if (err) return cb(err, null);
+    cb(null, self.detect(buffer));
+  };
+
+  if (opts && opts.sampleSize) {
+    fd = fs.openSync(filepath, 'r'),
+      sample = new Buffer(opts.sampleSize);
+
+    fs.read(fd, sample, 0, opts.sampleSize, null, function(err) {
+      handler(err, sample);
+    });
+    return;
+  }
+
+  fs.readFile(filepath, handler);
+};
+
+module.exports.detectFileSync = function(filepath, opts) {
+  if (opts && opts.sampleSize) {
+    var fd = fs.openSync(filepath, 'r'),
+      sample = new Buffer(opts.sampleSize);
+
+    fs.readSync(fd, sample, 0, opts.sampleSize);
+    fs.closeSync(fd);
+    return self.detect(sample);
+  }
+
+  return self.detect(fs.readFileSync(filepath));
+};