From 6dcb2f079d7c470580da23034f32aafd0a2ebcb4 Mon Sep 17 00:00:00 2001
From: xuxueyang <xuxy@fengyuntec.com>
Date: 星期三, 31 七月 2024 14:31:20 +0800
Subject: [PATCH] add 打印(还没debug)

---
 pages/order/order-delivery-detail.vue   |    7 
 sub_pages/supplier/print/print-list.vue |  666 +++++++++
 pages.json                              |   10 
 plugins/tsc.js                          |  222 +++
 plugins/encoding.js                     | 3312 ++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 4,216 insertions(+), 1 deletions(-)

diff --git a/pages.json b/pages.json
index 0685b60..d128a55 100644
--- a/pages.json
+++ b/pages.json
@@ -171,7 +171,15 @@
 						"navigationBarTitleText": "协议",
 						"enablePullDownRefresh": false
 					}
-				},
+				},
+				{
+					"path": "print/print-list",
+					"style": {
+						"navigationBarTitleText": "打印",
+						"enablePullDownRefresh": false
+					}
+					
+				}
 				// #endif				
 				// #ifdef PUB_PARTNER || PUB_SUPPLIER
 				{
diff --git a/pages/order/order-delivery-detail.vue b/pages/order/order-delivery-detail.vue
index f4b1ccb..07e5372 100644
--- a/pages/order/order-delivery-detail.vue
+++ b/pages/order/order-delivery-detail.vue
@@ -80,6 +80,10 @@
 			},
 			printDeliveryOrder(item) {
 				this.$message.showToast('敬请期待')
+				// this.$storage.setItem('cache_delivery_order_print',JSON.stringify(item))
+				// uni.navigateTo({
+				// 	url:'/sub_pages/supplier/print/print-list'
+				// })
 			}
 
 		}
@@ -140,10 +144,13 @@
 						</view>
 
 					</view>
+					<!-- #ifdef PUB_CUSTOMER -->
 					<view class="line"></view>
 					<view class="buttons">
 						<view class="button button-1 m-r-0" @click="printDeliveryOrder(item)">打印</view>
 					</view>
+					<!-- #endif -->
+					
 
 
 
diff --git a/plugins/encoding.js b/plugins/encoding.js
new file mode 100644
index 0000000..2caa28a
--- /dev/null
+++ b/plugins/encoding.js
@@ -0,0 +1,3312 @@
+// This is free and unencumbered software released into the public domain.
+// See LICENSE.md for more information.
+
+/**
+ * @fileoverview Global |this| required for resolving indexes in node.
+ * @suppress {globalThis}
+ */
+(function(global) {
+  'use strict';
+
+  // If we're in node require encoding-indexes and attach it to the global.
+  if (typeof module !== "undefined" && module.exports &&
+    !global["encoding-indexes"]) {
+    global["encoding-indexes"] =
+      require("./encoding-indexes.js")["encoding-indexes"];
+  }
+
+  //
+  // Utilities
+  //
+
+  /**
+   * @param {number} a The number to test.
+   * @param {number} min The minimum value in the range, inclusive.
+   * @param {number} max The maximum value in the range, inclusive.
+   * @return {boolean} True if a >= min and a <= max.
+   */
+  function inRange(a, min, max) {
+    return min <= a && a <= max;
+  }
+
+  /**
+   * @param {!Array.<*>} array The array to check.
+   * @param {*} item The item to look for in the array.
+   * @return {boolean} True if the item appears in the array.
+   */
+  function includes(array, item) {
+    return array.indexOf(item) !== -1;
+  }
+
+  var floor = Math.floor;
+
+  /**
+   * @param {*} o
+   * @return {Object}
+   */
+  function ToDictionary(o) {
+    if (o === undefined) return {};
+    if (o === Object(o)) return o;
+    throw TypeError('Could not convert argument to dictionary');
+  }
+
+  /**
+   * @param {string} string Input string of UTF-16 code units.
+   * @return {!Array.<number>} Code points.
+   */
+  function stringToCodePoints(string) {
+    // https://heycam.github.io/webidl/#dfn-obtain-unicode
+
+    // 1. Let S be the DOMString value.
+    var s = String(string);
+
+    // 2. Let n be the length of S.
+    var n = s.length;
+
+    // 3. Initialize i to 0.
+    var i = 0;
+
+    // 4. Initialize U to be an empty sequence of Unicode characters.
+    var u = [];
+
+    // 5. While i < n:
+    while (i < n) {
+
+      // 1. Let c be the code unit in S at index i.
+      var c = s.charCodeAt(i);
+
+      // 2. Depending on the value of c:
+
+      // c < 0xD800 or c > 0xDFFF
+      if (c < 0xD800 || c > 0xDFFF) {
+        // Append to U the Unicode character with code point c.
+        u.push(c);
+      }
+
+      // 0xDC00 ≤ c ≤ 0xDFFF
+      else if (0xDC00 <= c && c <= 0xDFFF) {
+        // Append to U a U+FFFD REPLACEMENT CHARACTER.
+        u.push(0xFFFD);
+      }
+
+      // 0xD800 ≤ c ≤ 0xDBFF
+      else if (0xD800 <= c && c <= 0xDBFF) {
+        // 1. If i = n−1, then append to U a U+FFFD REPLACEMENT
+        // CHARACTER.
+        if (i === n - 1) {
+          u.push(0xFFFD);
+        }
+        // 2. Otherwise, i < n−1:
+        else {
+          // 1. Let d be the code unit in S at index i+1.
+          var d = s.charCodeAt(i + 1);
+
+          // 2. If 0xDC00 ≤ d ≤ 0xDFFF, then:
+          if (0xDC00 <= d && d <= 0xDFFF) {
+            // 1. Let a be c & 0x3FF.
+            var a = c & 0x3FF;
+
+            // 2. Let b be d & 0x3FF.
+            var b = d & 0x3FF;
+
+            // 3. Append to U the Unicode character with code point
+            // 2^16+2^10*a+b.
+            u.push(0x10000 + (a << 10) + b);
+
+            // 4. Set i to i+1.
+            i += 1;
+          }
+
+          // 3. Otherwise, d < 0xDC00 or d > 0xDFFF. Append to U a
+          // U+FFFD REPLACEMENT CHARACTER.
+          else  {
+            u.push(0xFFFD);
+          }
+        }
+      }
+
+      // 3. Set i to i+1.
+      i += 1;
+    }
+
+    // 6. Return U.
+    return u;
+  }
+
+  /**
+   * @param {!Array.<number>} code_points Array of code points.
+   * @return {string} string String of UTF-16 code units.
+   */
+  function codePointsToString(code_points) {
+    var s = '';
+    for (var i = 0; i < code_points.length; ++i) {
+      var cp = code_points[i];
+      if (cp <= 0xFFFF) {
+        s += String.fromCharCode(cp);
+      } else {
+        cp -= 0x10000;
+        s += String.fromCharCode((cp >> 10) + 0xD800,
+                                 (cp & 0x3FF) + 0xDC00);
+      }
+    }
+    return s;
+  }
+
+
+  //
+  // Implementation of Encoding specification
+  // https://encoding.spec.whatwg.org/
+  //
+
+  //
+  // 4. Terminology
+  //
+
+  /**
+   * An ASCII byte is a byte in the range 0x00 to 0x7F, inclusive.
+   * @param {number} a The number to test.
+   * @return {boolean} True if a is in the range 0x00 to 0x7F, inclusive.
+   */
+  function isASCIIByte(a) {
+    return 0x00 <= a && a <= 0x7F;
+  }
+
+  /**
+   * An ASCII code point is a code point in the range U+0000 to
+   * U+007F, inclusive.
+   */
+  var isASCIICodePoint = isASCIIByte;
+
+
+  /**
+   * End-of-stream is a special token that signifies no more tokens
+   * are in the stream.
+   * @const
+   */ var end_of_stream = -1;
+
+  /**
+   * A stream represents an ordered sequence of tokens.
+   *
+   * @constructor
+   * @param {!(Array.<number>|Uint8Array)} tokens Array of tokens that provide
+   * the stream.
+   */
+  function Stream(tokens) {
+    /** @type {!Array.<number>} */
+    this.tokens = [].slice.call(tokens);
+    // Reversed as push/pop is more efficient than shift/unshift.
+    this.tokens.reverse();
+  }
+
+  Stream.prototype = {
+    /**
+     * @return {boolean} True if end-of-stream has been hit.
+     */
+    endOfStream: function() {
+      return !this.tokens.length;
+    },
+
+    /**
+     * When a token is read from a stream, the first token in the
+     * stream must be returned and subsequently removed, and
+     * end-of-stream must be returned otherwise.
+     *
+     * @return {number} Get the next token from the stream, or
+     * end_of_stream.
+     */
+     read: function() {
+      if (!this.tokens.length)
+        return end_of_stream;
+       return this.tokens.pop();
+     },
+
+    /**
+     * When one or more tokens are prepended to a stream, those tokens
+     * must be inserted, in given order, before the first token in the
+     * stream.
+     *
+     * @param {(number|!Array.<number>)} token The token(s) to prepend to the
+     * stream.
+     */
+    prepend: function(token) {
+      if (Array.isArray(token)) {
+        var tokens = /**@type {!Array.<number>}*/(token);
+        while (tokens.length)
+          this.tokens.push(tokens.pop());
+      } else {
+        this.tokens.push(token);
+      }
+    },
+
+    /**
+     * When one or more tokens are pushed to a stream, those tokens
+     * must be inserted, in given order, after the last token in the
+     * stream.
+     *
+     * @param {(number|!Array.<number>)} token The tokens(s) to push to the
+     * stream.
+     */
+    push: function(token) {
+      if (Array.isArray(token)) {
+        var tokens = /**@type {!Array.<number>}*/(token);
+        while (tokens.length)
+          this.tokens.unshift(tokens.shift());
+      } else {
+        this.tokens.unshift(token);
+      }
+    }
+  };
+
+  //
+  // 5. Encodings
+  //
+
+  // 5.1 Encoders and decoders
+
+  /** @const */
+  var finished = -1;
+
+  /**
+   * @param {boolean} fatal If true, decoding errors raise an exception.
+   * @param {number=} opt_code_point Override the standard fallback code point.
+   * @return {number} The code point to insert on a decoding error.
+   */
+  function decoderError(fatal, opt_code_point) {
+    if (fatal)
+      throw TypeError('Decoder error');
+    return opt_code_point || 0xFFFD;
+  }
+
+  /**
+   * @param {number} code_point The code point that could not be encoded.
+   * @return {number} Always throws, no value is actually returned.
+   */
+  function encoderError(code_point) {
+    throw TypeError('The code point ' + code_point + ' could not be encoded.');
+  }
+
+  /** @interface */
+  function Decoder() {}
+  Decoder.prototype = {
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point, or |finished|.
+     */
+    handler: function(stream, bite) {}
+  };
+
+  /** @interface */
+  function Encoder() {}
+  Encoder.prototype = {
+    /**
+     * @param {Stream} stream The stream of code points being encoded.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit, or |finished|.
+     */
+    handler: function(stream, code_point) {}
+  };
+
+  // 5.2 Names and labels
+
+  // TODO: Define @typedef for Encoding: {name:string,labels:Array.<string>}
+  // https://github.com/google/closure-compiler/issues/247
+
+  /**
+   * @param {string} label The encoding label.
+   * @return {?{name:string,labels:Array.<string>}}
+   */
+  function getEncoding(label) {
+    // 1. Remove any leading and trailing ASCII whitespace from label.
+    label = String(label).trim().toLowerCase();
+
+    // 2. If label is an ASCII case-insensitive match for any of the
+    // labels listed in the table below, return the corresponding
+    // encoding, and failure otherwise.
+    if (Object.prototype.hasOwnProperty.call(label_to_encoding, label)) {
+      return label_to_encoding[label];
+    }
+    return null;
+  }
+
+  /**
+   * Encodings table: https://encoding.spec.whatwg.org/encodings.json
+   * @const
+   * @type {!Array.<{
+   *          heading: string,
+   *          encodings: Array.<{name:string,labels:Array.<string>}>
+   *        }>}
+   */
+  var encodings = [
+    {
+      "encodings": [
+        {
+          "labels": [
+            "unicode-1-1-utf-8",
+            "utf-8",
+            "utf8"
+          ],
+          "name": "UTF-8"
+        }
+      ],
+      "heading": "The Encoding"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "866",
+            "cp866",
+            "csibm866",
+            "ibm866"
+          ],
+          "name": "IBM866"
+        },
+        {
+          "labels": [
+            "csisolatin2",
+            "iso-8859-2",
+            "iso-ir-101",
+            "iso8859-2",
+            "iso88592",
+            "iso_8859-2",
+            "iso_8859-2:1987",
+            "l2",
+            "latin2"
+          ],
+          "name": "ISO-8859-2"
+        },
+        {
+          "labels": [
+            "csisolatin3",
+            "iso-8859-3",
+            "iso-ir-109",
+            "iso8859-3",
+            "iso88593",
+            "iso_8859-3",
+            "iso_8859-3:1988",
+            "l3",
+            "latin3"
+          ],
+          "name": "ISO-8859-3"
+        },
+        {
+          "labels": [
+            "csisolatin4",
+            "iso-8859-4",
+            "iso-ir-110",
+            "iso8859-4",
+            "iso88594",
+            "iso_8859-4",
+            "iso_8859-4:1988",
+            "l4",
+            "latin4"
+          ],
+          "name": "ISO-8859-4"
+        },
+        {
+          "labels": [
+            "csisolatincyrillic",
+            "cyrillic",
+            "iso-8859-5",
+            "iso-ir-144",
+            "iso8859-5",
+            "iso88595",
+            "iso_8859-5",
+            "iso_8859-5:1988"
+          ],
+          "name": "ISO-8859-5"
+        },
+        {
+          "labels": [
+            "arabic",
+            "asmo-708",
+            "csiso88596e",
+            "csiso88596i",
+            "csisolatinarabic",
+            "ecma-114",
+            "iso-8859-6",
+            "iso-8859-6-e",
+            "iso-8859-6-i",
+            "iso-ir-127",
+            "iso8859-6",
+            "iso88596",
+            "iso_8859-6",
+            "iso_8859-6:1987"
+          ],
+          "name": "ISO-8859-6"
+        },
+        {
+          "labels": [
+            "csisolatingreek",
+            "ecma-118",
+            "elot_928",
+            "greek",
+            "greek8",
+            "iso-8859-7",
+            "iso-ir-126",
+            "iso8859-7",
+            "iso88597",
+            "iso_8859-7",
+            "iso_8859-7:1987",
+            "sun_eu_greek"
+          ],
+          "name": "ISO-8859-7"
+        },
+        {
+          "labels": [
+            "csiso88598e",
+            "csisolatinhebrew",
+            "hebrew",
+            "iso-8859-8",
+            "iso-8859-8-e",
+            "iso-ir-138",
+            "iso8859-8",
+            "iso88598",
+            "iso_8859-8",
+            "iso_8859-8:1988",
+            "visual"
+          ],
+          "name": "ISO-8859-8"
+        },
+        {
+          "labels": [
+            "csiso88598i",
+            "iso-8859-8-i",
+            "logical"
+          ],
+          "name": "ISO-8859-8-I"
+        },
+        {
+          "labels": [
+            "csisolatin6",
+            "iso-8859-10",
+            "iso-ir-157",
+            "iso8859-10",
+            "iso885910",
+            "l6",
+            "latin6"
+          ],
+          "name": "ISO-8859-10"
+        },
+        {
+          "labels": [
+            "iso-8859-13",
+            "iso8859-13",
+            "iso885913"
+          ],
+          "name": "ISO-8859-13"
+        },
+        {
+          "labels": [
+            "iso-8859-14",
+            "iso8859-14",
+            "iso885914"
+          ],
+          "name": "ISO-8859-14"
+        },
+        {
+          "labels": [
+            "csisolatin9",
+            "iso-8859-15",
+            "iso8859-15",
+            "iso885915",
+            "iso_8859-15",
+            "l9"
+          ],
+          "name": "ISO-8859-15"
+        },
+        {
+          "labels": [
+            "iso-8859-16"
+          ],
+          "name": "ISO-8859-16"
+        },
+        {
+          "labels": [
+            "cskoi8r",
+            "koi",
+            "koi8",
+            "koi8-r",
+            "koi8_r"
+          ],
+          "name": "KOI8-R"
+        },
+        {
+          "labels": [
+            "koi8-ru",
+            "koi8-u"
+          ],
+          "name": "KOI8-U"
+        },
+        {
+          "labels": [
+            "csmacintosh",
+            "mac",
+            "macintosh",
+            "x-mac-roman"
+          ],
+          "name": "macintosh"
+        },
+        {
+          "labels": [
+            "dos-874",
+            "iso-8859-11",
+            "iso8859-11",
+            "iso885911",
+            "tis-620",
+            "windows-874"
+          ],
+          "name": "windows-874"
+        },
+        {
+          "labels": [
+            "cp1250",
+            "windows-1250",
+            "x-cp1250"
+          ],
+          "name": "windows-1250"
+        },
+        {
+          "labels": [
+            "cp1251",
+            "windows-1251",
+            "x-cp1251"
+          ],
+          "name": "windows-1251"
+        },
+        {
+          "labels": [
+            "ansi_x3.4-1968",
+            "ascii",
+            "cp1252",
+            "cp819",
+            "csisolatin1",
+            "ibm819",
+            "iso-8859-1",
+            "iso-ir-100",
+            "iso8859-1",
+            "iso88591",
+            "iso_8859-1",
+            "iso_8859-1:1987",
+            "l1",
+            "latin1",
+            "us-ascii",
+            "windows-1252",
+            "x-cp1252"
+          ],
+          "name": "windows-1252"
+        },
+        {
+          "labels": [
+            "cp1253",
+            "windows-1253",
+            "x-cp1253"
+          ],
+          "name": "windows-1253"
+        },
+        {
+          "labels": [
+            "cp1254",
+            "csisolatin5",
+            "iso-8859-9",
+            "iso-ir-148",
+            "iso8859-9",
+            "iso88599",
+            "iso_8859-9",
+            "iso_8859-9:1989",
+            "l5",
+            "latin5",
+            "windows-1254",
+            "x-cp1254"
+          ],
+          "name": "windows-1254"
+        },
+        {
+          "labels": [
+            "cp1255",
+            "windows-1255",
+            "x-cp1255"
+          ],
+          "name": "windows-1255"
+        },
+        {
+          "labels": [
+            "cp1256",
+            "windows-1256",
+            "x-cp1256"
+          ],
+          "name": "windows-1256"
+        },
+        {
+          "labels": [
+            "cp1257",
+            "windows-1257",
+            "x-cp1257"
+          ],
+          "name": "windows-1257"
+        },
+        {
+          "labels": [
+            "cp1258",
+            "windows-1258",
+            "x-cp1258"
+          ],
+          "name": "windows-1258"
+        },
+        {
+          "labels": [
+            "x-mac-cyrillic",
+            "x-mac-ukrainian"
+          ],
+          "name": "x-mac-cyrillic"
+        }
+      ],
+      "heading": "Legacy single-byte encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "chinese",
+            "csgb2312",
+            "csiso58gb231280",
+            "gb2312",
+            "gb_2312",
+            "gb_2312-80",
+            "gbk",
+            "iso-ir-58",
+            "x-gbk"
+          ],
+          "name": "GBK"
+        },
+        {
+          "labels": [
+            "gb18030"
+          ],
+          "name": "gb18030"
+        }
+      ],
+      "heading": "Legacy multi-byte Chinese (simplified) encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "big5",
+            "big5-hkscs",
+            "cn-big5",
+            "csbig5",
+            "x-x-big5"
+          ],
+          "name": "Big5"
+        }
+      ],
+      "heading": "Legacy multi-byte Chinese (traditional) encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "cseucpkdfmtjapanese",
+            "euc-jp",
+            "x-euc-jp"
+          ],
+          "name": "EUC-JP"
+        },
+        {
+          "labels": [
+            "csiso2022jp",
+            "iso-2022-jp"
+          ],
+          "name": "ISO-2022-JP"
+        },
+        {
+          "labels": [
+            "csshiftjis",
+            "ms932",
+            "ms_kanji",
+            "shift-jis",
+            "shift_jis",
+            "sjis",
+            "windows-31j",
+            "x-sjis"
+          ],
+          "name": "Shift_JIS"
+        }
+      ],
+      "heading": "Legacy multi-byte Japanese encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "cseuckr",
+            "csksc56011987",
+            "euc-kr",
+            "iso-ir-149",
+            "korean",
+            "ks_c_5601-1987",
+            "ks_c_5601-1989",
+            "ksc5601",
+            "ksc_5601",
+            "windows-949"
+          ],
+          "name": "EUC-KR"
+        }
+      ],
+      "heading": "Legacy multi-byte Korean encodings"
+    },
+    {
+      "encodings": [
+        {
+          "labels": [
+            "csiso2022kr",
+            "hz-gb-2312",
+            "iso-2022-cn",
+            "iso-2022-cn-ext",
+            "iso-2022-kr"
+          ],
+          "name": "replacement"
+        },
+        {
+          "labels": [
+            "utf-16be"
+          ],
+          "name": "UTF-16BE"
+        },
+        {
+          "labels": [
+            "utf-16",
+            "utf-16le"
+          ],
+          "name": "UTF-16LE"
+        },
+        {
+          "labels": [
+            "x-user-defined"
+          ],
+          "name": "x-user-defined"
+        }
+      ],
+      "heading": "Legacy miscellaneous encodings"
+    }
+  ];
+
+  // Label to encoding registry.
+  /** @type {Object.<string,{name:string,labels:Array.<string>}>} */
+  var label_to_encoding = {};
+  encodings.forEach(function(category) {
+    category.encodings.forEach(function(encoding) {
+      encoding.labels.forEach(function(label) {
+        label_to_encoding[label] = encoding;
+      });
+    });
+  });
+
+  // Registry of of encoder/decoder factories, by encoding name.
+  /** @type {Object.<string, function({fatal:boolean}): Encoder>} */
+  var encoders = {};
+  /** @type {Object.<string, function({fatal:boolean}): Decoder>} */
+  var decoders = {};
+
+  //
+  // 6. Indexes
+  //
+
+  /**
+   * @param {number} pointer The |pointer| to search for.
+   * @param {(!Array.<?number>|undefined)} index The |index| to search within.
+   * @return {?number} The code point corresponding to |pointer| in |index|,
+   *     or null if |code point| is not in |index|.
+   */
+  function indexCodePointFor(pointer, index) {
+    if (!index) return null;
+    return index[pointer] || null;
+  }
+
+  /**
+   * @param {number} code_point The |code point| to search for.
+   * @param {!Array.<?number>} index The |index| to search within.
+   * @return {?number} The first pointer corresponding to |code point| in
+   *     |index|, or null if |code point| is not in |index|.
+   */
+  function indexPointerFor(code_point, index) {
+    var pointer = index.indexOf(code_point);
+    return pointer === -1 ? null : pointer;
+  }
+
+  /**
+   * @param {string} name Name of the index.
+   * @return {(!Array.<number>|!Array.<Array.<number>>)}
+   *  */
+  function index(name) {
+    if (!('encoding-indexes' in global)) {
+      throw Error("Indexes missing." +
+                  " Did you forget to include encoding-indexes.js first?");
+    }
+    return global['encoding-indexes'][name];
+  }
+
+  /**
+   * @param {number} pointer The |pointer| to search for in the gb18030 index.
+   * @return {?number} The code point corresponding to |pointer| in |index|,
+   *     or null if |code point| is not in the gb18030 index.
+   */
+  function indexGB18030RangesCodePointFor(pointer) {
+    // 1. If pointer is greater than 39419 and less than 189000, or
+    // pointer is greater than 1237575, return null.
+    if ((pointer > 39419 && pointer < 189000) || (pointer > 1237575))
+      return null;
+
+    // 2. If pointer is 7457, return code point U+E7C7.
+    if (pointer === 7457) return 0xE7C7;
+
+    // 3. Let offset be the last pointer in index gb18030 ranges that
+    // is equal to or less than pointer and let code point offset be
+    // its corresponding code point.
+    var offset = 0;
+    var code_point_offset = 0;
+    var idx = index('gb18030-ranges');
+    var i;
+    for (i = 0; i < idx.length; ++i) {
+      /** @type {!Array.<number>} */
+      var entry = idx[i];
+      if (entry[0] <= pointer) {
+        offset = entry[0];
+        code_point_offset = entry[1];
+      } else {
+        break;
+      }
+    }
+
+    // 4. Return a code point whose value is code point offset +
+    // pointer − offset.
+    return code_point_offset + pointer - offset;
+  }
+
+  /**
+   * @param {number} code_point The |code point| to locate in the gb18030 index.
+   * @return {number} The first pointer corresponding to |code point| in the
+   *     gb18030 index.
+   */
+  function indexGB18030RangesPointerFor(code_point) {
+    // 1. If code point is U+E7C7, return pointer 7457.
+    if (code_point === 0xE7C7) return 7457;
+
+    // 2. Let offset be the last code point in index gb18030 ranges
+    // that is equal to or less than code point and let pointer offset
+    // be its corresponding pointer.
+    var offset = 0;
+    var pointer_offset = 0;
+    var idx = index('gb18030-ranges');
+    var i;
+    for (i = 0; i < idx.length; ++i) {
+      /** @type {!Array.<number>} */
+      var entry = idx[i];
+      if (entry[1] <= code_point) {
+        offset = entry[1];
+        pointer_offset = entry[0];
+      } else {
+        break;
+      }
+    }
+
+    // 3. Return a pointer whose value is pointer offset + code point
+    // − offset.
+    return pointer_offset + code_point - offset;
+  }
+
+  /**
+   * @param {number} code_point The |code_point| to search for in the Shift_JIS
+   *     index.
+   * @return {?number} The code point corresponding to |pointer| in |index|,
+   *     or null if |code point| is not in the Shift_JIS index.
+   */
+  function indexShiftJISPointerFor(code_point) {
+    // 1. Let index be index jis0208 excluding all entries whose
+    // pointer is in the range 8272 to 8835, inclusive.
+    shift_jis_index = shift_jis_index ||
+      index('jis0208').map(function(code_point, pointer) {
+        return inRange(pointer, 8272, 8835) ? null : code_point;
+      });
+    var index_ = shift_jis_index;
+
+    // 2. Return the index pointer for code point in index.
+    return index_.indexOf(code_point);
+  }
+  var shift_jis_index;
+
+  /**
+   * @param {number} code_point The |code_point| to search for in the big5
+   *     index.
+   * @return {?number} The code point corresponding to |pointer| in |index|,
+   *     or null if |code point| is not in the big5 index.
+   */
+  function indexBig5PointerFor(code_point) {
+    // 1. Let index be index Big5 excluding all entries whose pointer
+    big5_index_no_hkscs = big5_index_no_hkscs ||
+      index('big5').map(function(code_point, pointer) {
+        return (pointer < (0xA1 - 0x81) * 157) ? null : code_point;
+      });
+    var index_ = big5_index_no_hkscs;
+
+    // 2. If code point is U+2550, U+255E, U+2561, U+256A, U+5341, or
+    // U+5345, return the last pointer corresponding to code point in
+    // index.
+    if (code_point === 0x2550 || code_point === 0x255E ||
+        code_point === 0x2561 || code_point === 0x256A ||
+        code_point === 0x5341 || code_point === 0x5345) {
+      return index_.lastIndexOf(code_point);
+    }
+
+    // 3. Return the index pointer for code point in index.
+    return indexPointerFor(code_point, index_);
+  }
+  var big5_index_no_hkscs;
+
+  //
+  // 8. API
+  //
+
+  /** @const */ var DEFAULT_ENCODING = 'utf-8';
+
+  // 8.1 Interface TextDecoder
+
+  /**
+   * @constructor
+   * @param {string=} label The label of the encoding;
+   *     defaults to 'utf-8'.
+   * @param {Object=} options
+   */
+  function TextDecoder(label, options) {
+    // Web IDL conventions
+    if (!(this instanceof TextDecoder))
+      throw TypeError('Called as a function. Did you forget \'new\'?');
+    label = label !== undefined ? String(label) : DEFAULT_ENCODING;
+    options = ToDictionary(options);
+
+    // A TextDecoder object has an associated encoding, decoder,
+    // stream, ignore BOM flag (initially unset), BOM seen flag
+    // (initially unset), error mode (initially replacement), and do
+    // not flush flag (initially unset).
+
+    /** @private */
+    this._encoding = null;
+    /** @private @type {?Decoder} */
+    this._decoder = null;
+    /** @private @type {boolean} */
+    this._ignoreBOM = false;
+    /** @private @type {boolean} */
+    this._BOMseen = false;
+    /** @private @type {string} */
+    this._error_mode = 'replacement';
+    /** @private @type {boolean} */
+    this._do_not_flush = false;
+
+
+    // 1. Let encoding be the result of getting an encoding from
+    // label.
+    var encoding = getEncoding(label);
+
+    // 2. If encoding is failure or replacement, throw a RangeError.
+    if (encoding === null || encoding.name === 'replacement')
+      throw RangeError('Unknown encoding: ' + label);
+    if (!decoders[encoding.name]) {
+      throw Error('Decoder not present.' +
+                  ' Did you forget to include encoding-indexes.js first?');
+    }
+
+    // 3. Let dec be a new TextDecoder object.
+    var dec = this;
+
+    // 4. Set dec's encoding to encoding.
+    dec._encoding = encoding;
+
+    // 5. If options's fatal member is true, set dec's error mode to
+    // fatal.
+    if (Boolean(options['fatal']))
+      dec._error_mode = 'fatal';
+
+    // 6. If options's ignoreBOM member is true, set dec's ignore BOM
+    // flag.
+    if (Boolean(options['ignoreBOM']))
+      dec._ignoreBOM = true;
+
+    // For pre-ES5 runtimes:
+    if (!Object.defineProperty) {
+      this.encoding = dec._encoding.name.toLowerCase();
+      this.fatal = dec._error_mode === 'fatal';
+      this.ignoreBOM = dec._ignoreBOM;
+    }
+
+    // 7. Return dec.
+    return dec;
+  }
+
+  if (Object.defineProperty) {
+    // The encoding attribute's getter must return encoding's name.
+    Object.defineProperty(TextDecoder.prototype, 'encoding', {
+      /** @this {TextDecoder} */
+      get: function() { return this._encoding.name.toLowerCase(); }
+    });
+
+    // The fatal attribute's getter must return true if error mode
+    // is fatal, and false otherwise.
+    Object.defineProperty(TextDecoder.prototype, 'fatal', {
+      /** @this {TextDecoder} */
+      get: function() { return this._error_mode === 'fatal'; }
+    });
+
+    // The ignoreBOM attribute's getter must return true if ignore
+    // BOM flag is set, and false otherwise.
+    Object.defineProperty(TextDecoder.prototype, 'ignoreBOM', {
+      /** @this {TextDecoder} */
+      get: function() { return this._ignoreBOM; }
+    });
+  }
+
+  /**
+   * @param {BufferSource=} input The buffer of bytes to decode.
+   * @param {Object=} options
+   * @return {string} The decoded string.
+   */
+  TextDecoder.prototype.decode = function decode(input, options) {
+    var bytes;
+    if (typeof input === 'object' && input instanceof ArrayBuffer) {
+      bytes = new Uint8Array(input);
+    } else if (typeof input === 'object' && 'buffer' in input &&
+               input.buffer instanceof ArrayBuffer) {
+      bytes = new Uint8Array(input.buffer,
+                             input.byteOffset,
+                             input.byteLength);
+    } else {
+      bytes = new Uint8Array(0);
+    }
+
+    options = ToDictionary(options);
+
+    // 1. If the do not flush flag is unset, set decoder to a new
+    // encoding's decoder, set stream to a new stream, and unset the
+    // BOM seen flag.
+    if (!this._do_not_flush) {
+      this._decoder = decoders[this._encoding.name]({
+        fatal: this._error_mode === 'fatal'});
+      this._BOMseen = false;
+    }
+
+    // 2. If options's stream is true, set the do not flush flag, and
+    // unset the do not flush flag otherwise.
+    this._do_not_flush = Boolean(options['stream']);
+
+    // 3. If input is given, push a copy of input to stream.
+    // TODO: Align with spec algorithm - maintain stream on instance.
+    var input_stream = new Stream(bytes);
+
+    // 4. Let output be a new stream.
+    var output = [];
+
+    /** @type {?(number|!Array.<number>)} */
+    var result;
+
+    // 5. While true:
+    while (true) {
+      // 1. Let token be the result of reading from stream.
+      var token = input_stream.read();
+
+      // 2. If token is end-of-stream and the do not flush flag is
+      // set, return output, serialized.
+      // TODO: Align with spec algorithm.
+      if (token === end_of_stream)
+        break;
+
+      // 3. Otherwise, run these subsubsteps:
+
+      // 1. Let result be the result of processing token for decoder,
+      // stream, output, and error mode.
+      result = this._decoder.handler(input_stream, token);
+
+      // 2. If result is finished, return output, serialized.
+      if (result === finished)
+        break;
+
+      if (result !== null) {
+        if (Array.isArray(result))
+          output.push.apply(output, /**@type {!Array.<number>}*/(result));
+        else
+          output.push(result);
+      }
+
+      // 3. Otherwise, if result is error, throw a TypeError.
+      // (Thrown in handler)
+
+      // 4. Otherwise, do nothing.
+    }
+    // TODO: Align with spec algorithm.
+    if (!this._do_not_flush) {
+      do {
+        result = this._decoder.handler(input_stream, input_stream.read());
+        if (result === finished)
+          break;
+        if (result === null)
+          continue;
+        if (Array.isArray(result))
+          output.push.apply(output, /**@type {!Array.<number>}*/(result));
+        else
+          output.push(result);
+      } while (!input_stream.endOfStream());
+      this._decoder = null;
+    }
+
+    // A TextDecoder object also has an associated serialize stream
+    // algorithm...
+    /**
+     * @param {!Array.<number>} stream
+     * @return {string}
+     * @this {TextDecoder}
+     */
+    function serializeStream(stream) {
+      // 1. Let token be the result of reading from stream.
+      // (Done in-place on array, rather than as a stream)
+
+      // 2. If encoding is UTF-8, UTF-16BE, or UTF-16LE, and ignore
+      // BOM flag and BOM seen flag are unset, run these subsubsteps:
+      if (includes(['UTF-8', 'UTF-16LE', 'UTF-16BE'], this._encoding.name) &&
+          !this._ignoreBOM && !this._BOMseen) {
+        if (stream.length > 0 && stream[0] === 0xFEFF) {
+          // 1. If token is U+FEFF, set BOM seen flag.
+          this._BOMseen = true;
+          stream.shift();
+        } else if (stream.length > 0) {
+          // 2. Otherwise, if token is not end-of-stream, set BOM seen
+          // flag and append token to stream.
+          this._BOMseen = true;
+        } else {
+          // 3. Otherwise, if token is not end-of-stream, append token
+          // to output.
+          // (no-op)
+        }
+      }
+      // 4. Otherwise, return output.
+      return codePointsToString(stream);
+    }
+
+    return serializeStream.call(this, output);
+  };
+
+  // 8.2 Interface TextEncoder
+
+  /**
+   * @constructor
+   * @param {string=} label The label of the encoding. NONSTANDARD.
+   * @param {Object=} options NONSTANDARD.
+   */
+  function TextEncoder(label, options) {
+    // Web IDL conventions
+    if (!(this instanceof TextEncoder))
+      throw TypeError('Called as a function. Did you forget \'new\'?');
+    options = ToDictionary(options);
+
+    // A TextEncoder object has an associated encoding and encoder.
+
+    /** @private */
+    this._encoding = null;
+    /** @private @type {?Encoder} */
+    this._encoder = null;
+
+    // Non-standard
+    /** @private @type {boolean} */
+    this._do_not_flush = false;
+    /** @private @type {string} */
+    this._fatal = Boolean(options['fatal']) ? 'fatal' : 'replacement';
+
+    // 1. Let enc be a new TextEncoder object.
+    var enc = this;
+
+    // 2. Set enc's encoding to UTF-8's encoder.
+    if (Boolean(options['NONSTANDARD_allowLegacyEncoding'])) {
+      // NONSTANDARD behavior.
+      label = label !== undefined ? String(label) : DEFAULT_ENCODING;
+      var encoding = getEncoding(label);
+      if (encoding === null || encoding.name === 'replacement')
+        throw RangeError('Unknown encoding: ' + label);
+      if (!encoders[encoding.name]) {
+        throw Error('Encoder not present.' +
+                    ' Did you forget to include encoding-indexes.js first?');
+      }
+      enc._encoding = encoding;
+    } else {
+      // Standard behavior.
+      enc._encoding = getEncoding('utf-8');
+
+      if (label !== undefined && 'console' in global) {
+        console.warn('TextEncoder constructor called with encoding label, '
+                     + 'which is ignored.');
+      }
+    }
+
+    // For pre-ES5 runtimes:
+    if (!Object.defineProperty)
+      this.encoding = enc._encoding.name.toLowerCase();
+
+    // 3. Return enc.
+    return enc;
+  }
+
+  if (Object.defineProperty) {
+    // The encoding attribute's getter must return encoding's name.
+    Object.defineProperty(TextEncoder.prototype, 'encoding', {
+      /** @this {TextEncoder} */
+      get: function() { return this._encoding.name.toLowerCase(); }
+    });
+  }
+
+  /**
+   * @param {string=} opt_string The string to encode.
+   * @param {Object=} options
+   * @return {!Uint8Array} Encoded bytes, as a Uint8Array.
+   */
+  TextEncoder.prototype.encode = function encode(opt_string, options) {
+    opt_string = opt_string === undefined ? '' : String(opt_string);
+    options = ToDictionary(options);
+
+    // NOTE: This option is nonstandard. None of the encodings
+    // permitted for encoding (i.e. UTF-8, UTF-16) are stateful when
+    // the input is a USVString so streaming is not necessary.
+    if (!this._do_not_flush)
+      this._encoder = encoders[this._encoding.name]({
+        fatal: this._fatal === 'fatal'});
+    this._do_not_flush = Boolean(options['stream']);
+
+    // 1. Convert input to a stream.
+    var input = new Stream(stringToCodePoints(opt_string));
+
+    // 2. Let output be a new stream
+    var output = [];
+
+    /** @type {?(number|!Array.<number>)} */
+    var result;
+    // 3. While true, run these substeps:
+    while (true) {
+      // 1. Let token be the result of reading from input.
+      var token = input.read();
+      if (token === end_of_stream)
+        break;
+      // 2. Let result be the result of processing token for encoder,
+      // input, output.
+      result = this._encoder.handler(input, token);
+      if (result === finished)
+        break;
+      if (Array.isArray(result))
+        output.push.apply(output, /**@type {!Array.<number>}*/(result));
+      else
+        output.push(result);
+    }
+    // TODO: Align with spec algorithm.
+    if (!this._do_not_flush) {
+      while (true) {
+        result = this._encoder.handler(input, input.read());
+        if (result === finished)
+          break;
+        if (Array.isArray(result))
+          output.push.apply(output, /**@type {!Array.<number>}*/(result));
+        else
+          output.push(result);
+      }
+      this._encoder = null;
+    }
+    // 3. If result is finished, convert output into a byte sequence,
+    // and then return a Uint8Array object wrapping an ArrayBuffer
+    // containing output.
+    return new Uint8Array(output);
+  };
+
+
+  //
+  // 9. The encoding
+  //
+
+  // 9.1 utf-8
+
+  // 9.1.1 utf-8 decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function UTF8Decoder(options) {
+    var fatal = options.fatal;
+
+    // utf-8's decoder's has an associated utf-8 code point, utf-8
+    // bytes seen, and utf-8 bytes needed (all initially 0), a utf-8
+    // lower boundary (initially 0x80), and a utf-8 upper boundary
+    // (initially 0xBF).
+    var /** @type {number} */ utf8_code_point = 0,
+        /** @type {number} */ utf8_bytes_seen = 0,
+        /** @type {number} */ utf8_bytes_needed = 0,
+        /** @type {number} */ utf8_lower_boundary = 0x80,
+        /** @type {number} */ utf8_upper_boundary = 0xBF;
+
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and utf-8 bytes needed is not 0,
+      // set utf-8 bytes needed to 0 and return error.
+      if (bite === end_of_stream && utf8_bytes_needed !== 0) {
+        utf8_bytes_needed = 0;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream, return finished.
+      if (bite === end_of_stream)
+        return finished;
+
+      // 3. If utf-8 bytes needed is 0, based on byte:
+      if (utf8_bytes_needed === 0) {
+
+        // 0x00 to 0x7F
+        if (inRange(bite, 0x00, 0x7F)) {
+          // Return a code point whose value is byte.
+          return bite;
+        }
+
+        // 0xC2 to 0xDF
+        else if (inRange(bite, 0xC2, 0xDF)) {
+          // 1. Set utf-8 bytes needed to 1.
+          utf8_bytes_needed = 1;
+
+          // 2. Set UTF-8 code point to byte & 0x1F.
+          utf8_code_point = bite & 0x1F;
+        }
+
+        // 0xE0 to 0xEF
+        else if (inRange(bite, 0xE0, 0xEF)) {
+          // 1. If byte is 0xE0, set utf-8 lower boundary to 0xA0.
+          if (bite === 0xE0)
+            utf8_lower_boundary = 0xA0;
+          // 2. If byte is 0xED, set utf-8 upper boundary to 0x9F.
+          if (bite === 0xED)
+            utf8_upper_boundary = 0x9F;
+          // 3. Set utf-8 bytes needed to 2.
+          utf8_bytes_needed = 2;
+          // 4. Set UTF-8 code point to byte & 0xF.
+          utf8_code_point = bite & 0xF;
+        }
+
+        // 0xF0 to 0xF4
+        else if (inRange(bite, 0xF0, 0xF4)) {
+          // 1. If byte is 0xF0, set utf-8 lower boundary to 0x90.
+          if (bite === 0xF0)
+            utf8_lower_boundary = 0x90;
+          // 2. If byte is 0xF4, set utf-8 upper boundary to 0x8F.
+          if (bite === 0xF4)
+            utf8_upper_boundary = 0x8F;
+          // 3. Set utf-8 bytes needed to 3.
+          utf8_bytes_needed = 3;
+          // 4. Set UTF-8 code point to byte & 0x7.
+          utf8_code_point = bite & 0x7;
+        }
+
+        // Otherwise
+        else {
+          // Return error.
+          return decoderError(fatal);
+        }
+
+        // Return continue.
+        return null;
+      }
+
+      // 4. If byte is not in the range utf-8 lower boundary to utf-8
+      // upper boundary, inclusive, run these substeps:
+      if (!inRange(bite, utf8_lower_boundary, utf8_upper_boundary)) {
+
+        // 1. Set utf-8 code point, utf-8 bytes needed, and utf-8
+        // bytes seen to 0, set utf-8 lower boundary to 0x80, and set
+        // utf-8 upper boundary to 0xBF.
+        utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0;
+        utf8_lower_boundary = 0x80;
+        utf8_upper_boundary = 0xBF;
+
+        // 2. Prepend byte to stream.
+        stream.prepend(bite);
+
+        // 3. Return error.
+        return decoderError(fatal);
+      }
+
+      // 5. Set utf-8 lower boundary to 0x80 and utf-8 upper boundary
+      // to 0xBF.
+      utf8_lower_boundary = 0x80;
+      utf8_upper_boundary = 0xBF;
+
+      // 6. Set UTF-8 code point to (UTF-8 code point << 6) | (byte &
+      // 0x3F)
+      utf8_code_point = (utf8_code_point << 6) | (bite & 0x3F);
+
+      // 7. Increase utf-8 bytes seen by one.
+      utf8_bytes_seen += 1;
+
+      // 8. If utf-8 bytes seen is not equal to utf-8 bytes needed,
+      // continue.
+      if (utf8_bytes_seen !== utf8_bytes_needed)
+        return null;
+
+      // 9. Let code point be utf-8 code point.
+      var code_point = utf8_code_point;
+
+      // 10. Set utf-8 code point, utf-8 bytes needed, and utf-8 bytes
+      // seen to 0.
+      utf8_code_point = utf8_bytes_needed = utf8_bytes_seen = 0;
+
+      // 11. Return a code point whose value is code point.
+      return code_point;
+    };
+  }
+
+  // 9.1.2 utf-8 encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function UTF8Encoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. Set count and offset based on the range code point is in:
+      var count, offset;
+      // U+0080 to U+07FF, inclusive:
+      if (inRange(code_point, 0x0080, 0x07FF)) {
+        // 1 and 0xC0
+        count = 1;
+        offset = 0xC0;
+      }
+      // U+0800 to U+FFFF, inclusive:
+      else if (inRange(code_point, 0x0800, 0xFFFF)) {
+        // 2 and 0xE0
+        count = 2;
+        offset = 0xE0;
+      }
+      // U+10000 to U+10FFFF, inclusive:
+      else if (inRange(code_point, 0x10000, 0x10FFFF)) {
+        // 3 and 0xF0
+        count = 3;
+        offset = 0xF0;
+      }
+
+      // 4. Let bytes be a byte sequence whose first byte is (code
+      // point >> (6 × count)) + offset.
+      var bytes = [(code_point >> (6 * count)) + offset];
+
+      // 5. Run these substeps while count is greater than 0:
+      while (count > 0) {
+
+        // 1. Set temp to code point >> (6 × (count − 1)).
+        var temp = code_point >> (6 * (count - 1));
+
+        // 2. Append to bytes 0x80 | (temp & 0x3F).
+        bytes.push(0x80 | (temp & 0x3F));
+
+        // 3. Decrease count by one.
+        count -= 1;
+      }
+
+      // 6. Return bytes bytes, in order.
+      return bytes;
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['UTF-8'] = function(options) {
+    return new UTF8Encoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['UTF-8'] = function(options) {
+    return new UTF8Decoder(options);
+  };
+
+  //
+  // 10. Legacy single-byte encodings
+  //
+
+  // 10.1 single-byte decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {!Array.<number>} index The encoding index.
+   * @param {{fatal: boolean}} options
+   */
+  function SingleByteDecoder(index, options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream, return finished.
+      if (bite === end_of_stream)
+        return finished;
+
+      // 2. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 3. Let code point be the index code point for byte − 0x80 in
+      // index single-byte.
+      var code_point = index[bite - 0x80];
+
+      // 4. If code point is null, return error.
+      if (code_point === null)
+        return decoderError(fatal);
+
+      // 5. Return a code point whose value is code point.
+      return code_point;
+    };
+  }
+
+  // 10.2 single-byte encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {!Array.<?number>} index The encoding index.
+   * @param {{fatal: boolean}} options
+   */
+  function SingleByteEncoder(index, options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. Let pointer be the index pointer for code point in index
+      // single-byte.
+      var pointer = indexPointerFor(code_point, index);
+
+      // 4. If pointer is null, return error with code point.
+      if (pointer === null)
+        encoderError(code_point);
+
+      // 5. Return a byte whose value is pointer + 0x80.
+      return pointer + 0x80;
+    };
+  }
+
+  (function() {
+    if (!('encoding-indexes' in global))
+      return;
+    encodings.forEach(function(category) {
+      if (category.heading !== 'Legacy single-byte encodings')
+        return;
+      category.encodings.forEach(function(encoding) {
+        var name = encoding.name;
+        var idx = index(name.toLowerCase());
+        /** @param {{fatal: boolean}} options */
+        decoders[name] = function(options) {
+          return new SingleByteDecoder(idx, options);
+        };
+        /** @param {{fatal: boolean}} options */
+        encoders[name] = function(options) {
+          return new SingleByteEncoder(idx, options);
+        };
+      });
+    });
+  }());
+
+  //
+  // 11. Legacy multi-byte Chinese (simplified) encodings
+  //
+
+  // 11.1 gbk
+
+  // 11.1.1 gbk decoder
+  // gbk's decoder is gb18030's decoder.
+  /** @param {{fatal: boolean}} options */
+  decoders['GBK'] = function(options) {
+    return new GB18030Decoder(options);
+  };
+
+  // 11.1.2 gbk encoder
+  // gbk's encoder is gb18030's encoder with its gbk flag set.
+  /** @param {{fatal: boolean}} options */
+  encoders['GBK'] = function(options) {
+    return new GB18030Encoder(options, true);
+  };
+
+  // 11.2 gb18030
+  // 11.2.1 gb18030 decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function GB18030Decoder(options) {
+    var fatal = options.fatal;
+    // gb18030's decoder has an associated gb18030 first, gb18030
+    // second, and gb18030 third (all initially 0x00).
+    var /** @type {number} */ gb18030_first = 0x00,
+        /** @type {number} */ gb18030_second = 0x00,
+        /** @type {number} */ gb18030_third = 0x00;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and gb18030 first, gb18030
+      // second, and gb18030 third are 0x00, return finished.
+      if (bite === end_of_stream && gb18030_first === 0x00 &&
+          gb18030_second === 0x00 && gb18030_third === 0x00) {
+        return finished;
+      }
+      // 2. If byte is end-of-stream, and gb18030 first, gb18030
+      // second, or gb18030 third is not 0x00, set gb18030 first,
+      // gb18030 second, and gb18030 third to 0x00, and return error.
+      if (bite === end_of_stream &&
+          (gb18030_first !== 0x00 || gb18030_second !== 0x00 ||
+           gb18030_third !== 0x00)) {
+        gb18030_first = 0x00;
+        gb18030_second = 0x00;
+        gb18030_third = 0x00;
+        decoderError(fatal);
+      }
+      var code_point;
+      // 3. If gb18030 third is not 0x00, run these substeps:
+      if (gb18030_third !== 0x00) {
+        // 1. Let code point be null.
+        code_point = null;
+        // 2. If byte is in the range 0x30 to 0x39, inclusive, set
+        // code point to the index gb18030 ranges code point for
+        // (((gb18030 first − 0x81) × 10 + gb18030 second − 0x30) ×
+        // 126 + gb18030 third − 0x81) × 10 + byte − 0x30.
+        if (inRange(bite, 0x30, 0x39)) {
+          code_point = indexGB18030RangesCodePointFor(
+              (((gb18030_first - 0x81) * 10 + gb18030_second - 0x30) * 126 +
+               gb18030_third - 0x81) * 10 + bite - 0x30);
+        }
+
+        // 3. Let buffer be a byte sequence consisting of gb18030
+        // second, gb18030 third, and byte, in order.
+        var buffer = [gb18030_second, gb18030_third, bite];
+
+        // 4. Set gb18030 first, gb18030 second, and gb18030 third to
+        // 0x00.
+        gb18030_first = 0x00;
+        gb18030_second = 0x00;
+        gb18030_third = 0x00;
+
+        // 5. If code point is null, prepend buffer to stream and
+        // return error.
+        if (code_point === null) {
+          stream.prepend(buffer);
+          return decoderError(fatal);
+        }
+
+        // 6. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 4. If gb18030 second is not 0x00, run these substeps:
+      if (gb18030_second !== 0x00) {
+
+        // 1. If byte is in the range 0x81 to 0xFE, inclusive, set
+        // gb18030 third to byte and return continue.
+        if (inRange(bite, 0x81, 0xFE)) {
+          gb18030_third = bite;
+          return null;
+        }
+
+        // 2. Prepend gb18030 second followed by byte to stream, set
+        // gb18030 first and gb18030 second to 0x00, and return error.
+        stream.prepend([gb18030_second, bite]);
+        gb18030_first = 0x00;
+        gb18030_second = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 5. If gb18030 first is not 0x00, run these substeps:
+      if (gb18030_first !== 0x00) {
+
+        // 1. If byte is in the range 0x30 to 0x39, inclusive, set
+        // gb18030 second to byte and return continue.
+        if (inRange(bite, 0x30, 0x39)) {
+          gb18030_second = bite;
+          return null;
+        }
+
+        // 2. Let lead be gb18030 first, let pointer be null, and set
+        // gb18030 first to 0x00.
+        var lead = gb18030_first;
+        var pointer = null;
+        gb18030_first = 0x00;
+
+        // 3. Let offset be 0x40 if byte is less than 0x7F and 0x41
+        // otherwise.
+        var offset = bite < 0x7F ? 0x40 : 0x41;
+
+        // 4. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80
+        // to 0xFE, inclusive, set pointer to (lead − 0x81) × 190 +
+        // (byte − offset).
+        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFE))
+          pointer = (lead - 0x81) * 190 + (bite - offset);
+
+        // 5. Let code point be null if pointer is null and the index
+        // code point for pointer in index gb18030 otherwise.
+        code_point = pointer === null ? null :
+            indexCodePointFor(pointer, index('gb18030'));
+
+        // 6. If code point is null and byte is an ASCII byte, prepend
+        // byte to stream.
+        if (code_point === null && isASCIIByte(bite))
+          stream.prepend(bite);
+
+        // 7. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 8. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 6. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 7. If byte is 0x80, return code point U+20AC.
+      if (bite === 0x80)
+        return 0x20AC;
+
+      // 8. If byte is in the range 0x81 to 0xFE, inclusive, set
+      // gb18030 first to byte and return continue.
+      if (inRange(bite, 0x81, 0xFE)) {
+        gb18030_first = bite;
+        return null;
+      }
+
+      // 9. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 11.2.2 gb18030 encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   * @param {boolean=} gbk_flag
+   */
+  function GB18030Encoder(options, gbk_flag) {
+    var fatal = options.fatal;
+    // gb18030's decoder has an associated gbk flag (initially unset).
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. If code point is U+E5E5, return error with code point.
+      if (code_point === 0xE5E5)
+        return encoderError(code_point);
+
+      // 4. If the gbk flag is set and code point is U+20AC, return
+      // byte 0x80.
+      if (gbk_flag && code_point === 0x20AC)
+        return 0x80;
+
+      // 5. Let pointer be the index pointer for code point in index
+      // gb18030.
+      var pointer = indexPointerFor(code_point, index('gb18030'));
+
+      // 6. If pointer is not null, run these substeps:
+      if (pointer !== null) {
+
+        // 1. Let lead be floor(pointer / 190) + 0x81.
+        var lead = floor(pointer / 190) + 0x81;
+
+        // 2. Let trail be pointer % 190.
+        var trail = pointer % 190;
+
+        // 3. Let offset be 0x40 if trail is less than 0x3F and 0x41 otherwise.
+        var offset = trail < 0x3F ? 0x40 : 0x41;
+
+        // 4. Return two bytes whose values are lead and trail + offset.
+        return [lead, trail + offset];
+      }
+
+      // 7. If gbk flag is set, return error with code point.
+      if (gbk_flag)
+        return encoderError(code_point);
+
+      // 8. Set pointer to the index gb18030 ranges pointer for code
+      // point.
+      pointer = indexGB18030RangesPointerFor(code_point);
+
+      // 9. Let byte1 be floor(pointer / 10 / 126 / 10).
+      var byte1 = floor(pointer / 10 / 126 / 10);
+
+      // 10. Set pointer to pointer − byte1 × 10 × 126 × 10.
+      pointer = pointer - byte1 * 10 * 126 * 10;
+
+      // 11. Let byte2 be floor(pointer / 10 / 126).
+      var byte2 = floor(pointer / 10 / 126);
+
+      // 12. Set pointer to pointer − byte2 × 10 × 126.
+      pointer = pointer - byte2 * 10 * 126;
+
+      // 13. Let byte3 be floor(pointer / 10).
+      var byte3 = floor(pointer / 10);
+
+      // 14. Let byte4 be pointer − byte3 × 10.
+      var byte4 = pointer - byte3 * 10;
+
+      // 15. Return four bytes whose values are byte1 + 0x81, byte2 +
+      // 0x30, byte3 + 0x81, byte4 + 0x30.
+      return [byte1 + 0x81,
+              byte2 + 0x30,
+              byte3 + 0x81,
+              byte4 + 0x30];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['gb18030'] = function(options) {
+    return new GB18030Encoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['gb18030'] = function(options) {
+    return new GB18030Decoder(options);
+  };
+
+
+  //
+  // 12. Legacy multi-byte Chinese (traditional) encodings
+  //
+
+  // 12.1 Big5
+
+  // 12.1.1 Big5 decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function Big5Decoder(options) {
+    var fatal = options.fatal;
+    // Big5's decoder has an associated Big5 lead (initially 0x00).
+    var /** @type {number} */ Big5_lead = 0x00;
+
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and Big5 lead is not 0x00, set
+      // Big5 lead to 0x00 and return error.
+      if (bite === end_of_stream && Big5_lead !== 0x00) {
+        Big5_lead = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and Big5 lead is 0x00, return
+      // finished.
+      if (bite === end_of_stream && Big5_lead === 0x00)
+        return finished;
+
+      // 3. If Big5 lead is not 0x00, let lead be Big5 lead, let
+      // pointer be null, set Big5 lead to 0x00, and then run these
+      // substeps:
+      if (Big5_lead !== 0x00) {
+        var lead = Big5_lead;
+        var pointer = null;
+        Big5_lead = 0x00;
+
+        // 1. Let offset be 0x40 if byte is less than 0x7F and 0x62
+        // otherwise.
+        var offset = bite < 0x7F ? 0x40 : 0x62;
+
+        // 2. If byte is in the range 0x40 to 0x7E, inclusive, or 0xA1
+        // to 0xFE, inclusive, set pointer to (lead − 0x81) × 157 +
+        // (byte − offset).
+        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0xA1, 0xFE))
+          pointer = (lead - 0x81) * 157 + (bite - offset);
+
+        // 3. If there is a row in the table below whose first column
+        // is pointer, return the two code points listed in its second
+        // column
+        // Pointer | Code points
+        // --------+--------------
+        // 1133    | U+00CA U+0304
+        // 1135    | U+00CA U+030C
+        // 1164    | U+00EA U+0304
+        // 1166    | U+00EA U+030C
+        switch (pointer) {
+          case 1133: return [0x00CA, 0x0304];
+          case 1135: return [0x00CA, 0x030C];
+          case 1164: return [0x00EA, 0x0304];
+          case 1166: return [0x00EA, 0x030C];
+        }
+
+        // 4. Let code point be null if pointer is null and the index
+        // code point for pointer in index Big5 otherwise.
+        var code_point = (pointer === null) ? null :
+            indexCodePointFor(pointer, index('big5'));
+
+        // 5. If code point is null and byte is an ASCII byte, prepend
+        // byte to stream.
+        if (code_point === null && isASCIIByte(bite))
+          stream.prepend(bite);
+
+        // 6. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 7. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 4. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 5. If byte is in the range 0x81 to 0xFE, inclusive, set Big5
+      // lead to byte and return continue.
+      if (inRange(bite, 0x81, 0xFE)) {
+        Big5_lead = bite;
+        return null;
+      }
+
+      // 6. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 12.1.2 Big5 encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function Big5Encoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. Let pointer be the index Big5 pointer for code point.
+      var pointer = indexBig5PointerFor(code_point);
+
+      // 4. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 5. Let lead be floor(pointer / 157) + 0x81.
+      var lead = floor(pointer / 157) + 0x81;
+
+      // 6. If lead is less than 0xA1, return error with code point.
+      if (lead < 0xA1)
+        return encoderError(code_point);
+
+      // 7. Let trail be pointer % 157.
+      var trail = pointer % 157;
+
+      // 8. Let offset be 0x40 if trail is less than 0x3F and 0x62
+      // otherwise.
+      var offset = trail < 0x3F ? 0x40 : 0x62;
+
+      // Return two bytes whose values are lead and trail + offset.
+      return [lead, trail + offset];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['Big5'] = function(options) {
+    return new Big5Encoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['Big5'] = function(options) {
+    return new Big5Decoder(options);
+  };
+
+
+  //
+  // 13. Legacy multi-byte Japanese encodings
+  //
+
+  // 13.1 euc-jp
+
+  // 13.1.1 euc-jp decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function EUCJPDecoder(options) {
+    var fatal = options.fatal;
+
+    // euc-jp's decoder has an associated euc-jp jis0212 flag
+    // (initially unset) and euc-jp lead (initially 0x00).
+    var /** @type {boolean} */ eucjp_jis0212_flag = false,
+        /** @type {number} */ eucjp_lead = 0x00;
+
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and euc-jp lead is not 0x00, set
+      // euc-jp lead to 0x00, and return error.
+      if (bite === end_of_stream && eucjp_lead !== 0x00) {
+        eucjp_lead = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and euc-jp lead is 0x00, return
+      // finished.
+      if (bite === end_of_stream && eucjp_lead === 0x00)
+        return finished;
+
+      // 3. If euc-jp lead is 0x8E and byte is in the range 0xA1 to
+      // 0xDF, inclusive, set euc-jp lead to 0x00 and return a code
+      // point whose value is 0xFF61 − 0xA1 + byte.
+      if (eucjp_lead === 0x8E && inRange(bite, 0xA1, 0xDF)) {
+        eucjp_lead = 0x00;
+        return 0xFF61 - 0xA1 + bite;
+      }
+
+      // 4. If euc-jp lead is 0x8F and byte is in the range 0xA1 to
+      // 0xFE, inclusive, set the euc-jp jis0212 flag, set euc-jp lead
+      // to byte, and return continue.
+      if (eucjp_lead === 0x8F && inRange(bite, 0xA1, 0xFE)) {
+        eucjp_jis0212_flag = true;
+        eucjp_lead = bite;
+        return null;
+      }
+
+      // 5. If euc-jp lead is not 0x00, let lead be euc-jp lead, set
+      // euc-jp lead to 0x00, and run these substeps:
+      if (eucjp_lead !== 0x00) {
+        var lead = eucjp_lead;
+        eucjp_lead = 0x00;
+
+        // 1. Let code point be null.
+        var code_point = null;
+
+        // 2. If lead and byte are both in the range 0xA1 to 0xFE,
+        // inclusive, set code point to the index code point for (lead
+        // − 0xA1) × 94 + byte − 0xA1 in index jis0208 if the euc-jp
+        // jis0212 flag is unset and in index jis0212 otherwise.
+        if (inRange(lead, 0xA1, 0xFE) && inRange(bite, 0xA1, 0xFE)) {
+          code_point = indexCodePointFor(
+            (lead - 0xA1) * 94 + (bite - 0xA1),
+            index(!eucjp_jis0212_flag ? 'jis0208' : 'jis0212'));
+        }
+
+        // 3. Unset the euc-jp jis0212 flag.
+        eucjp_jis0212_flag = false;
+
+        // 4. If byte is not in the range 0xA1 to 0xFE, inclusive,
+        // prepend byte to stream.
+        if (!inRange(bite, 0xA1, 0xFE))
+          stream.prepend(bite);
+
+        // 5. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 6. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 6. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 7. If byte is 0x8E, 0x8F, or in the range 0xA1 to 0xFE,
+      // inclusive, set euc-jp lead to byte and return continue.
+      if (bite === 0x8E || bite === 0x8F || inRange(bite, 0xA1, 0xFE)) {
+        eucjp_lead = bite;
+        return null;
+      }
+
+      // 8. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 13.1.2 euc-jp encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function EUCJPEncoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. If code point is U+00A5, return byte 0x5C.
+      if (code_point === 0x00A5)
+        return 0x5C;
+
+      // 4. If code point is U+203E, return byte 0x7E.
+      if (code_point === 0x203E)
+        return 0x7E;
+
+      // 5. If code point is in the range U+FF61 to U+FF9F, inclusive,
+      // return two bytes whose values are 0x8E and code point −
+      // 0xFF61 + 0xA1.
+      if (inRange(code_point, 0xFF61, 0xFF9F))
+        return [0x8E, code_point - 0xFF61 + 0xA1];
+
+      // 6. If code point is U+2212, set it to U+FF0D.
+      if (code_point === 0x2212)
+        code_point = 0xFF0D;
+
+      // 7. Let pointer be the index pointer for code point in index
+      // jis0208.
+      var pointer = indexPointerFor(code_point, index('jis0208'));
+
+      // 8. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 9. Let lead be floor(pointer / 94) + 0xA1.
+      var lead = floor(pointer / 94) + 0xA1;
+
+      // 10. Let trail be pointer % 94 + 0xA1.
+      var trail = pointer % 94 + 0xA1;
+
+      // 11. Return two bytes whose values are lead and trail.
+      return [lead, trail];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['EUC-JP'] = function(options) {
+    return new EUCJPEncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['EUC-JP'] = function(options) {
+    return new EUCJPDecoder(options);
+  };
+
+  // 13.2 iso-2022-jp
+
+  // 13.2.1 iso-2022-jp decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function ISO2022JPDecoder(options) {
+    var fatal = options.fatal;
+    /** @enum */
+    var states = {
+      ASCII: 0,
+      Roman: 1,
+      Katakana: 2,
+      LeadByte: 3,
+      TrailByte: 4,
+      EscapeStart: 5,
+      Escape: 6
+    };
+    // iso-2022-jp's decoder has an associated iso-2022-jp decoder
+    // state (initially ASCII), iso-2022-jp decoder output state
+    // (initially ASCII), iso-2022-jp lead (initially 0x00), and
+    // iso-2022-jp output flag (initially unset).
+    var /** @type {number} */ iso2022jp_decoder_state = states.ASCII,
+        /** @type {number} */ iso2022jp_decoder_output_state = states.ASCII,
+        /** @type {number} */ iso2022jp_lead = 0x00,
+        /** @type {boolean} */ iso2022jp_output_flag = false;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // switching on iso-2022-jp decoder state:
+      switch (iso2022jp_decoder_state) {
+      default:
+      case states.ASCII:
+        // ASCII
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return null;
+        }
+
+        // 0x00 to 0x7F, excluding 0x0E, 0x0F, and 0x1B
+        if (inRange(bite, 0x00, 0x7F) && bite !== 0x0E
+            && bite !== 0x0F && bite !== 0x1B) {
+          // Unset the iso-2022-jp output flag and return a code point
+          // whose value is byte.
+          iso2022jp_output_flag = false;
+          return bite;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Return finished.
+          return finished;
+        }
+
+        // Otherwise
+        // Unset the iso-2022-jp output flag and return error.
+        iso2022jp_output_flag = false;
+        return decoderError(fatal);
+
+      case states.Roman:
+        // Roman
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return null;
+        }
+
+        // 0x5C
+        if (bite === 0x5C) {
+          // Unset the iso-2022-jp output flag and return code point
+          // U+00A5.
+          iso2022jp_output_flag = false;
+          return 0x00A5;
+        }
+
+        // 0x7E
+        if (bite === 0x7E) {
+          // Unset the iso-2022-jp output flag and return code point
+          // U+203E.
+          iso2022jp_output_flag = false;
+          return 0x203E;
+        }
+
+        // 0x00 to 0x7F, excluding 0x0E, 0x0F, 0x1B, 0x5C, and 0x7E
+        if (inRange(bite, 0x00, 0x7F) && bite !== 0x0E && bite !== 0x0F
+            && bite !== 0x1B && bite !== 0x5C && bite !== 0x7E) {
+          // Unset the iso-2022-jp output flag and return a code point
+          // whose value is byte.
+          iso2022jp_output_flag = false;
+          return bite;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Return finished.
+          return finished;
+        }
+
+        // Otherwise
+        // Unset the iso-2022-jp output flag and return error.
+        iso2022jp_output_flag = false;
+        return decoderError(fatal);
+
+      case states.Katakana:
+        // Katakana
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return null;
+        }
+
+        // 0x21 to 0x5F
+        if (inRange(bite, 0x21, 0x5F)) {
+          // Unset the iso-2022-jp output flag and return a code point
+          // whose value is 0xFF61 − 0x21 + byte.
+          iso2022jp_output_flag = false;
+          return 0xFF61 - 0x21 + bite;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Return finished.
+          return finished;
+        }
+
+        // Otherwise
+        // Unset the iso-2022-jp output flag and return error.
+        iso2022jp_output_flag = false;
+        return decoderError(fatal);
+
+      case states.LeadByte:
+        // Lead byte
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return null;
+        }
+
+        // 0x21 to 0x7E
+        if (inRange(bite, 0x21, 0x7E)) {
+          // Unset the iso-2022-jp output flag, set iso-2022-jp lead
+          // to byte, iso-2022-jp decoder state to trail byte, and
+          // return continue.
+          iso2022jp_output_flag = false;
+          iso2022jp_lead = bite;
+          iso2022jp_decoder_state = states.TrailByte;
+          return null;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Return finished.
+          return finished;
+        }
+
+        // Otherwise
+        // Unset the iso-2022-jp output flag and return error.
+        iso2022jp_output_flag = false;
+        return decoderError(fatal);
+
+      case states.TrailByte:
+        // Trail byte
+        // Based on byte:
+
+        // 0x1B
+        if (bite === 0x1B) {
+          // Set iso-2022-jp decoder state to escape start and return
+          // continue.
+          iso2022jp_decoder_state = states.EscapeStart;
+          return decoderError(fatal);
+        }
+
+        // 0x21 to 0x7E
+        if (inRange(bite, 0x21, 0x7E)) {
+          // 1. Set the iso-2022-jp decoder state to lead byte.
+          iso2022jp_decoder_state = states.LeadByte;
+
+          // 2. Let pointer be (iso-2022-jp lead − 0x21) × 94 + byte − 0x21.
+          var pointer = (iso2022jp_lead - 0x21) * 94 + bite - 0x21;
+
+          // 3. Let code point be the index code point for pointer in
+          // index jis0208.
+          var code_point = indexCodePointFor(pointer, index('jis0208'));
+
+          // 4. If code point is null, return error.
+          if (code_point === null)
+            return decoderError(fatal);
+
+          // 5. Return a code point whose value is code point.
+          return code_point;
+        }
+
+        // end-of-stream
+        if (bite === end_of_stream) {
+          // Set the iso-2022-jp decoder state to lead byte, prepend
+          // byte to stream, and return error.
+          iso2022jp_decoder_state = states.LeadByte;
+          stream.prepend(bite);
+          return decoderError(fatal);
+        }
+
+        // Otherwise
+        // Set iso-2022-jp decoder state to lead byte and return
+        // error.
+        iso2022jp_decoder_state = states.LeadByte;
+        return decoderError(fatal);
+
+      case states.EscapeStart:
+        // Escape start
+
+        // 1. If byte is either 0x24 or 0x28, set iso-2022-jp lead to
+        // byte, iso-2022-jp decoder state to escape, and return
+        // continue.
+        if (bite === 0x24 || bite === 0x28) {
+          iso2022jp_lead = bite;
+          iso2022jp_decoder_state = states.Escape;
+          return null;
+        }
+
+        // 2. Prepend byte to stream.
+        stream.prepend(bite);
+
+        // 3. Unset the iso-2022-jp output flag, set iso-2022-jp
+        // decoder state to iso-2022-jp decoder output state, and
+        // return error.
+        iso2022jp_output_flag = false;
+        iso2022jp_decoder_state = iso2022jp_decoder_output_state;
+        return decoderError(fatal);
+
+      case states.Escape:
+        // Escape
+
+        // 1. Let lead be iso-2022-jp lead and set iso-2022-jp lead to
+        // 0x00.
+        var lead = iso2022jp_lead;
+        iso2022jp_lead = 0x00;
+
+        // 2. Let state be null.
+        var state = null;
+
+        // 3. If lead is 0x28 and byte is 0x42, set state to ASCII.
+        if (lead === 0x28 && bite === 0x42)
+          state = states.ASCII;
+
+        // 4. If lead is 0x28 and byte is 0x4A, set state to Roman.
+        if (lead === 0x28 && bite === 0x4A)
+          state = states.Roman;
+
+        // 5. If lead is 0x28 and byte is 0x49, set state to Katakana.
+        if (lead === 0x28 && bite === 0x49)
+          state = states.Katakana;
+
+        // 6. If lead is 0x24 and byte is either 0x40 or 0x42, set
+        // state to lead byte.
+        if (lead === 0x24 && (bite === 0x40 || bite === 0x42))
+          state = states.LeadByte;
+
+        // 7. If state is non-null, run these substeps:
+        if (state !== null) {
+          // 1. Set iso-2022-jp decoder state and iso-2022-jp decoder
+          // output state to states.
+          iso2022jp_decoder_state = iso2022jp_decoder_state = state;
+
+          // 2. Let output flag be the iso-2022-jp output flag.
+          var output_flag = iso2022jp_output_flag;
+
+          // 3. Set the iso-2022-jp output flag.
+          iso2022jp_output_flag = true;
+
+          // 4. Return continue, if output flag is unset, and error
+          // otherwise.
+          return !output_flag ? null : decoderError(fatal);
+        }
+
+        // 8. Prepend lead and byte to stream.
+        stream.prepend([lead, bite]);
+
+        // 9. Unset the iso-2022-jp output flag, set iso-2022-jp
+        // decoder state to iso-2022-jp decoder output state and
+        // return error.
+        iso2022jp_output_flag = false;
+        iso2022jp_decoder_state = iso2022jp_decoder_output_state;
+        return decoderError(fatal);
+      }
+    };
+  }
+
+  // 13.2.2 iso-2022-jp encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function ISO2022JPEncoder(options) {
+    var fatal = options.fatal;
+    // iso-2022-jp's encoder has an associated iso-2022-jp encoder
+    // state which is one of ASCII, Roman, and jis0208 (initially
+    // ASCII).
+    /** @enum */
+    var states = {
+      ASCII: 0,
+      Roman: 1,
+      jis0208: 2
+    };
+    var /** @type {number} */ iso2022jp_state = states.ASCII;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream and iso-2022-jp encoder
+      // state is not ASCII, prepend code point to stream, set
+      // iso-2022-jp encoder state to ASCII, and return three bytes
+      // 0x1B 0x28 0x42.
+      if (code_point === end_of_stream &&
+          iso2022jp_state !== states.ASCII) {
+        stream.prepend(code_point);
+        iso2022jp_state = states.ASCII;
+        return [0x1B, 0x28, 0x42];
+      }
+
+      // 2. If code point is end-of-stream and iso-2022-jp encoder
+      // state is ASCII, return finished.
+      if (code_point === end_of_stream && iso2022jp_state === states.ASCII)
+        return finished;
+
+      // 3. If ISO-2022-JP encoder state is ASCII or Roman, and code
+      // point is U+000E, U+000F, or U+001B, return error with U+FFFD.
+      if ((iso2022jp_state === states.ASCII ||
+           iso2022jp_state === states.Roman) &&
+          (code_point === 0x000E || code_point === 0x000F ||
+           code_point === 0x001B)) {
+        return encoderError(0xFFFD);
+      }
+
+      // 4. If iso-2022-jp encoder state is ASCII and code point is an
+      // ASCII code point, return a byte whose value is code point.
+      if (iso2022jp_state === states.ASCII &&
+          isASCIICodePoint(code_point))
+        return code_point;
+
+      // 5. If iso-2022-jp encoder state is Roman and code point is an
+      // ASCII code point, excluding U+005C and U+007E, or is U+00A5
+      // or U+203E, run these substeps:
+      if (iso2022jp_state === states.Roman &&
+          ((isASCIICodePoint(code_point) &&
+           code_point !== 0x005C && code_point !== 0x007E) ||
+          (code_point == 0x00A5 || code_point == 0x203E))) {
+
+        // 1. If code point is an ASCII code point, return a byte
+        // whose value is code point.
+        if (isASCIICodePoint(code_point))
+          return code_point;
+
+        // 2. If code point is U+00A5, return byte 0x5C.
+        if (code_point === 0x00A5)
+          return 0x5C;
+
+        // 3. If code point is U+203E, return byte 0x7E.
+        if (code_point === 0x203E)
+          return 0x7E;
+      }
+
+      // 6. If code point is an ASCII code point, and iso-2022-jp
+      // encoder state is not ASCII, prepend code point to stream, set
+      // iso-2022-jp encoder state to ASCII, and return three bytes
+      // 0x1B 0x28 0x42.
+      if (isASCIICodePoint(code_point) &&
+          iso2022jp_state !== states.ASCII) {
+        stream.prepend(code_point);
+        iso2022jp_state = states.ASCII;
+        return [0x1B, 0x28, 0x42];
+      }
+
+      // 7. If code point is either U+00A5 or U+203E, and iso-2022-jp
+      // encoder state is not Roman, prepend code point to stream, set
+      // iso-2022-jp encoder state to Roman, and return three bytes
+      // 0x1B 0x28 0x4A.
+      if ((code_point === 0x00A5 || code_point === 0x203E) &&
+          iso2022jp_state !== states.Roman) {
+        stream.prepend(code_point);
+        iso2022jp_state = states.Roman;
+        return [0x1B, 0x28, 0x4A];
+      }
+
+      // 8. If code point is U+2212, set it to U+FF0D.
+      if (code_point === 0x2212)
+        code_point = 0xFF0D;
+
+      // 9. Let pointer be the index pointer for code point in index
+      // jis0208.
+      var pointer = indexPointerFor(code_point, index('jis0208'));
+
+      // 10. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 11. If iso-2022-jp encoder state is not jis0208, prepend code
+      // point to stream, set iso-2022-jp encoder state to jis0208,
+      // and return three bytes 0x1B 0x24 0x42.
+      if (iso2022jp_state !== states.jis0208) {
+        stream.prepend(code_point);
+        iso2022jp_state = states.jis0208;
+        return [0x1B, 0x24, 0x42];
+      }
+
+      // 12. Let lead be floor(pointer / 94) + 0x21.
+      var lead = floor(pointer / 94) + 0x21;
+
+      // 13. Let trail be pointer % 94 + 0x21.
+      var trail = pointer % 94 + 0x21;
+
+      // 14. Return two bytes whose values are lead and trail.
+      return [lead, trail];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['ISO-2022-JP'] = function(options) {
+    return new ISO2022JPEncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['ISO-2022-JP'] = function(options) {
+    return new ISO2022JPDecoder(options);
+  };
+
+  // 13.3 Shift_JIS
+
+  // 13.3.1 Shift_JIS decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function ShiftJISDecoder(options) {
+    var fatal = options.fatal;
+    // Shift_JIS's decoder has an associated Shift_JIS lead (initially
+    // 0x00).
+    var /** @type {number} */ Shift_JIS_lead = 0x00;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and Shift_JIS lead is not 0x00,
+      // set Shift_JIS lead to 0x00 and return error.
+      if (bite === end_of_stream && Shift_JIS_lead !== 0x00) {
+        Shift_JIS_lead = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and Shift_JIS lead is 0x00,
+      // return finished.
+      if (bite === end_of_stream && Shift_JIS_lead === 0x00)
+        return finished;
+
+      // 3. If Shift_JIS lead is not 0x00, let lead be Shift_JIS lead,
+      // let pointer be null, set Shift_JIS lead to 0x00, and then run
+      // these substeps:
+      if (Shift_JIS_lead !== 0x00) {
+        var lead = Shift_JIS_lead;
+        var pointer = null;
+        Shift_JIS_lead = 0x00;
+
+        // 1. Let offset be 0x40, if byte is less than 0x7F, and 0x41
+        // otherwise.
+        var offset = (bite < 0x7F) ? 0x40 : 0x41;
+
+        // 2. Let lead offset be 0x81, if lead is less than 0xA0, and
+        // 0xC1 otherwise.
+        var lead_offset = (lead < 0xA0) ? 0x81 : 0xC1;
+
+        // 3. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80
+        // to 0xFC, inclusive, set pointer to (lead − lead offset) ×
+        // 188 + byte − offset.
+        if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFC))
+          pointer = (lead - lead_offset) * 188 + bite - offset;
+
+        // 4. If pointer is in the range 8836 to 10715, inclusive,
+        // return a code point whose value is 0xE000 − 8836 + pointer.
+        if (inRange(pointer, 8836, 10715))
+          return 0xE000 - 8836 + pointer;
+
+        // 5. Let code point be null, if pointer is null, and the
+        // index code point for pointer in index jis0208 otherwise.
+        var code_point = (pointer === null) ? null :
+              indexCodePointFor(pointer, index('jis0208'));
+
+        // 6. If code point is null and byte is an ASCII byte, prepend
+        // byte to stream.
+        if (code_point === null && isASCIIByte(bite))
+          stream.prepend(bite);
+
+        // 7. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 8. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 4. If byte is an ASCII byte or 0x80, return a code point
+      // whose value is byte.
+      if (isASCIIByte(bite) || bite === 0x80)
+        return bite;
+
+      // 5. If byte is in the range 0xA1 to 0xDF, inclusive, return a
+      // code point whose value is 0xFF61 − 0xA1 + byte.
+      if (inRange(bite, 0xA1, 0xDF))
+        return 0xFF61 - 0xA1 + bite;
+
+      // 6. If byte is in the range 0x81 to 0x9F, inclusive, or 0xE0
+      // to 0xFC, inclusive, set Shift_JIS lead to byte and return
+      // continue.
+      if (inRange(bite, 0x81, 0x9F) || inRange(bite, 0xE0, 0xFC)) {
+        Shift_JIS_lead = bite;
+        return null;
+      }
+
+      // 7. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 13.3.2 Shift_JIS encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function ShiftJISEncoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point or U+0080, return a
+      // byte whose value is code point.
+      if (isASCIICodePoint(code_point) || code_point === 0x0080)
+        return code_point;
+
+      // 3. If code point is U+00A5, return byte 0x5C.
+      if (code_point === 0x00A5)
+        return 0x5C;
+
+      // 4. If code point is U+203E, return byte 0x7E.
+      if (code_point === 0x203E)
+        return 0x7E;
+
+      // 5. If code point is in the range U+FF61 to U+FF9F, inclusive,
+      // return a byte whose value is code point − 0xFF61 + 0xA1.
+      if (inRange(code_point, 0xFF61, 0xFF9F))
+        return code_point - 0xFF61 + 0xA1;
+
+      // 6. If code point is U+2212, set it to U+FF0D.
+      if (code_point === 0x2212)
+        code_point = 0xFF0D;
+
+      // 7. Let pointer be the index Shift_JIS pointer for code point.
+      var pointer = indexShiftJISPointerFor(code_point);
+
+      // 8. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 9. Let lead be floor(pointer / 188).
+      var lead = floor(pointer / 188);
+
+      // 10. Let lead offset be 0x81, if lead is less than 0x1F, and
+      // 0xC1 otherwise.
+      var lead_offset = (lead < 0x1F) ? 0x81 : 0xC1;
+
+      // 11. Let trail be pointer % 188.
+      var trail = pointer % 188;
+
+      // 12. Let offset be 0x40, if trail is less than 0x3F, and 0x41
+      // otherwise.
+      var offset = (trail < 0x3F) ? 0x40 : 0x41;
+
+      // 13. Return two bytes whose values are lead + lead offset and
+      // trail + offset.
+      return [lead + lead_offset, trail + offset];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['Shift_JIS'] = function(options) {
+    return new ShiftJISEncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['Shift_JIS'] = function(options) {
+    return new ShiftJISDecoder(options);
+  };
+
+  //
+  // 14. Legacy multi-byte Korean encodings
+  //
+
+  // 14.1 euc-kr
+
+  // 14.1.1 euc-kr decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function EUCKRDecoder(options) {
+    var fatal = options.fatal;
+
+    // euc-kr's decoder has an associated euc-kr lead (initially 0x00).
+    var /** @type {number} */ euckr_lead = 0x00;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and euc-kr lead is not 0x00, set
+      // euc-kr lead to 0x00 and return error.
+      if (bite === end_of_stream && euckr_lead !== 0) {
+        euckr_lead = 0x00;
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and euc-kr lead is 0x00, return
+      // finished.
+      if (bite === end_of_stream && euckr_lead === 0)
+        return finished;
+
+      // 3. If euc-kr lead is not 0x00, let lead be euc-kr lead, let
+      // pointer be null, set euc-kr lead to 0x00, and then run these
+      // substeps:
+      if (euckr_lead !== 0x00) {
+        var lead = euckr_lead;
+        var pointer = null;
+        euckr_lead = 0x00;
+
+        // 1. If byte is in the range 0x41 to 0xFE, inclusive, set
+        // pointer to (lead − 0x81) × 190 + (byte − 0x41).
+        if (inRange(bite, 0x41, 0xFE))
+          pointer = (lead - 0x81) * 190 + (bite - 0x41);
+
+        // 2. Let code point be null, if pointer is null, and the
+        // index code point for pointer in index euc-kr otherwise.
+        var code_point = (pointer === null)
+              ? null : indexCodePointFor(pointer, index('euc-kr'));
+
+        // 3. If code point is null and byte is an ASCII byte, prepend
+        // byte to stream.
+        if (pointer === null && isASCIIByte(bite))
+          stream.prepend(bite);
+
+        // 4. If code point is null, return error.
+        if (code_point === null)
+          return decoderError(fatal);
+
+        // 5. Return a code point whose value is code point.
+        return code_point;
+      }
+
+      // 4. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 5. If byte is in the range 0x81 to 0xFE, inclusive, set
+      // euc-kr lead to byte and return continue.
+      if (inRange(bite, 0x81, 0xFE)) {
+        euckr_lead = bite;
+        return null;
+      }
+
+      // 6. Return error.
+      return decoderError(fatal);
+    };
+  }
+
+  // 14.1.2 euc-kr encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function EUCKREncoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. Let pointer be the index pointer for code point in index
+      // euc-kr.
+      var pointer = indexPointerFor(code_point, index('euc-kr'));
+
+      // 4. If pointer is null, return error with code point.
+      if (pointer === null)
+        return encoderError(code_point);
+
+      // 5. Let lead be floor(pointer / 190) + 0x81.
+      var lead = floor(pointer / 190) + 0x81;
+
+      // 6. Let trail be pointer % 190 + 0x41.
+      var trail = (pointer % 190) + 0x41;
+
+      // 7. Return two bytes whose values are lead and trail.
+      return [lead, trail];
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['EUC-KR'] = function(options) {
+    return new EUCKREncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['EUC-KR'] = function(options) {
+    return new EUCKRDecoder(options);
+  };
+
+
+  //
+  // 15. Legacy miscellaneous encodings
+  //
+
+  // 15.1 replacement
+
+  // Not needed - API throws RangeError
+
+  // 15.2 Common infrastructure for utf-16be and utf-16le
+
+  /**
+   * @param {number} code_unit
+   * @param {boolean} utf16be
+   * @return {!Array.<number>} bytes
+   */
+  function convertCodeUnitToBytes(code_unit, utf16be) {
+    // 1. Let byte1 be code unit >> 8.
+    var byte1 = code_unit >> 8;
+
+    // 2. Let byte2 be code unit & 0x00FF.
+    var byte2 = code_unit & 0x00FF;
+
+    // 3. Then return the bytes in order:
+        // utf-16be flag is set: byte1, then byte2.
+    if (utf16be)
+      return [byte1, byte2];
+    // utf-16be flag is unset: byte2, then byte1.
+    return [byte2, byte1];
+  }
+
+  // 15.2.1 shared utf-16 decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {boolean} utf16_be True if big-endian, false if little-endian.
+   * @param {{fatal: boolean}} options
+   */
+  function UTF16Decoder(utf16_be, options) {
+    var fatal = options.fatal;
+    var /** @type {?number} */ utf16_lead_byte = null,
+        /** @type {?number} */ utf16_lead_surrogate = null;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream and either utf-16 lead byte or
+      // utf-16 lead surrogate is not null, set utf-16 lead byte and
+      // utf-16 lead surrogate to null, and return error.
+      if (bite === end_of_stream && (utf16_lead_byte !== null ||
+                                utf16_lead_surrogate !== null)) {
+        return decoderError(fatal);
+      }
+
+      // 2. If byte is end-of-stream and utf-16 lead byte and utf-16
+      // lead surrogate are null, return finished.
+      if (bite === end_of_stream && utf16_lead_byte === null &&
+          utf16_lead_surrogate === null) {
+        return finished;
+      }
+
+      // 3. If utf-16 lead byte is null, set utf-16 lead byte to byte
+      // and return continue.
+      if (utf16_lead_byte === null) {
+        utf16_lead_byte = bite;
+        return null;
+      }
+
+      // 4. Let code unit be the result of:
+      var code_unit;
+      if (utf16_be) {
+        // utf-16be decoder flag is set
+        //   (utf-16 lead byte << 8) + byte.
+        code_unit = (utf16_lead_byte << 8) + bite;
+      } else {
+        // utf-16be decoder flag is unset
+        //   (byte << 8) + utf-16 lead byte.
+        code_unit = (bite << 8) + utf16_lead_byte;
+      }
+      // Then set utf-16 lead byte to null.
+      utf16_lead_byte = null;
+
+      // 5. If utf-16 lead surrogate is not null, let lead surrogate
+      // be utf-16 lead surrogate, set utf-16 lead surrogate to null,
+      // and then run these substeps:
+      if (utf16_lead_surrogate !== null) {
+        var lead_surrogate = utf16_lead_surrogate;
+        utf16_lead_surrogate = null;
+
+        // 1. If code unit is in the range U+DC00 to U+DFFF,
+        // inclusive, return a code point whose value is 0x10000 +
+        // ((lead surrogate − 0xD800) << 10) + (code unit − 0xDC00).
+        if (inRange(code_unit, 0xDC00, 0xDFFF)) {
+          return 0x10000 + (lead_surrogate - 0xD800) * 0x400 +
+              (code_unit - 0xDC00);
+        }
+
+        // 2. Prepend the sequence resulting of converting code unit
+        // to bytes using utf-16be decoder flag to stream and return
+        // error.
+        stream.prepend(convertCodeUnitToBytes(code_unit, utf16_be));
+        return decoderError(fatal);
+      }
+
+      // 6. If code unit is in the range U+D800 to U+DBFF, inclusive,
+      // set utf-16 lead surrogate to code unit and return continue.
+      if (inRange(code_unit, 0xD800, 0xDBFF)) {
+        utf16_lead_surrogate = code_unit;
+        return null;
+      }
+
+      // 7. If code unit is in the range U+DC00 to U+DFFF, inclusive,
+      // return error.
+      if (inRange(code_unit, 0xDC00, 0xDFFF))
+        return decoderError(fatal);
+
+      // 8. Return code point code unit.
+      return code_unit;
+    };
+  }
+
+  // 15.2.2 shared utf-16 encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {boolean} utf16_be True if big-endian, false if little-endian.
+   * @param {{fatal: boolean}} options
+   */
+  function UTF16Encoder(utf16_be, options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1. If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is in the range U+0000 to U+FFFF, inclusive,
+      // return the sequence resulting of converting code point to
+      // bytes using utf-16be encoder flag.
+      if (inRange(code_point, 0x0000, 0xFFFF))
+        return convertCodeUnitToBytes(code_point, utf16_be);
+
+      // 3. Let lead be ((code point − 0x10000) >> 10) + 0xD800,
+      // converted to bytes using utf-16be encoder flag.
+      var lead = convertCodeUnitToBytes(
+        ((code_point - 0x10000) >> 10) + 0xD800, utf16_be);
+
+      // 4. Let trail be ((code point − 0x10000) & 0x3FF) + 0xDC00,
+      // converted to bytes using utf-16be encoder flag.
+      var trail = convertCodeUnitToBytes(
+        ((code_point - 0x10000) & 0x3FF) + 0xDC00, utf16_be);
+
+      // 5. Return a byte sequence of lead followed by trail.
+      return lead.concat(trail);
+    };
+  }
+
+  // 15.3 utf-16be
+  // 15.3.1 utf-16be decoder
+  /** @param {{fatal: boolean}} options */
+  encoders['UTF-16BE'] = function(options) {
+    return new UTF16Encoder(true, options);
+  };
+  // 15.3.2 utf-16be encoder
+  /** @param {{fatal: boolean}} options */
+  decoders['UTF-16BE'] = function(options) {
+    return new UTF16Decoder(true, options);
+  };
+
+  // 15.4 utf-16le
+  // 15.4.1 utf-16le decoder
+  /** @param {{fatal: boolean}} options */
+  encoders['UTF-16LE'] = function(options) {
+    return new UTF16Encoder(false, options);
+  };
+  // 15.4.2 utf-16le encoder
+  /** @param {{fatal: boolean}} options */
+  decoders['UTF-16LE'] = function(options) {
+    return new UTF16Decoder(false, options);
+  };
+
+  // 15.5 x-user-defined
+
+  // 15.5.1 x-user-defined decoder
+  /**
+   * @constructor
+   * @implements {Decoder}
+   * @param {{fatal: boolean}} options
+   */
+  function XUserDefinedDecoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream The stream of bytes being decoded.
+     * @param {number} bite The next byte read from the stream.
+     * @return {?(number|!Array.<number>)} The next code point(s)
+     *     decoded, or null if not enough data exists in the input
+     *     stream to decode a complete code point.
+     */
+    this.handler = function(stream, bite) {
+      // 1. If byte is end-of-stream, return finished.
+      if (bite === end_of_stream)
+        return finished;
+
+      // 2. If byte is an ASCII byte, return a code point whose value
+      // is byte.
+      if (isASCIIByte(bite))
+        return bite;
+
+      // 3. Return a code point whose value is 0xF780 + byte − 0x80.
+      return 0xF780 + bite - 0x80;
+    };
+  }
+
+  // 15.5.2 x-user-defined encoder
+  /**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+  function XUserDefinedEncoder(options) {
+    var fatal = options.fatal;
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    this.handler = function(stream, code_point) {
+      // 1.If code point is end-of-stream, return finished.
+      if (code_point === end_of_stream)
+        return finished;
+
+      // 2. If code point is an ASCII code point, return a byte whose
+      // value is code point.
+      if (isASCIICodePoint(code_point))
+        return code_point;
+
+      // 3. If code point is in the range U+F780 to U+F7FF, inclusive,
+      // return a byte whose value is code point − 0xF780 + 0x80.
+      if (inRange(code_point, 0xF780, 0xF7FF))
+        return code_point - 0xF780 + 0x80;
+
+      // 4. Return error with code point.
+      return encoderError(code_point);
+    };
+  }
+
+  /** @param {{fatal: boolean}} options */
+  encoders['x-user-defined'] = function(options) {
+    return new XUserDefinedEncoder(options);
+  };
+  /** @param {{fatal: boolean}} options */
+  decoders['x-user-defined'] = function(options) {
+    return new XUserDefinedDecoder(options);
+  };
+
+  if (!global['TextEncoder'])
+    global['TextEncoder'] = TextEncoder;
+  if (!global['TextDecoder'])
+    global['TextDecoder'] = TextDecoder;
+
+  if (typeof module !== "undefined" && module.exports) {
+    module.exports = {
+      TextEncoder: global['TextEncoder'],
+      TextDecoder: global['TextDecoder'],
+      EncodingIndexes: global["encoding-indexes"]
+    };
+  }
+
+// For strict environments where `this` inside the global scope
+// is `undefined`, take a pure object instead
+}(this || {}));
\ No newline at end of file
diff --git a/plugins/tsc.js b/plugins/tsc.js
new file mode 100644
index 0000000..1d7ab14
--- /dev/null
+++ b/plugins/tsc.js
@@ -0,0 +1,222 @@
+var app = getApp();
+var encode = require("@/plugins/encoding.js");
+var jpPrinter = {
+  createNew: function () {
+    var jpPrinter = {};
+    var data = "";
+    var command = []
+
+    jpPrinter.name = "蓝牙打印机";
+
+    jpPrinter.init = function () { };
+
+    jpPrinter.addCommand = function (content) {  //将指令转成数组装起
+      var code = new encode.TextEncoder(
+        'gb18030', {
+          NONSTANDARD_allowLegacyEncoding: true
+        }).encode(content)
+      for (var i = 0; i < code.length; ++i) {
+        command.push(code[i])
+      }
+    }
+
+    jpPrinter.setSize = function (pageWidght, pageHeight) { //设置页面大小
+      data = "SIZE " + pageWidght.toString() + " mm" + "," + pageHeight.toString() + " mm" + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setSpeed = function (printSpeed) { //设置打印机速度
+      data = "SPEED " + printSpeed.toString() + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setDensity = function (printDensity) { //设置打印机浓度
+      data = "DENSITY " + printDensity.toString() + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setGap = function (printGap) { //传感器
+      data = "GAP " + printGap.toString() + " mm\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setCountry = function (country) { //选择国际字符集
+      /*
+      001:USA
+      002:French
+      003:Latin America
+      034:Spanish
+      039:Italian
+      044:United Kingdom
+      046:Swedish
+      047:Norwegian
+      049:German
+       */
+      data = "COUNTRY " + country + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setCodepage = function (codepage) { //选择国际代码页
+      /*
+      8-bit codepage 字符集代表
+      437:United States
+      850:Multilingual
+      852:Slavic
+      860:Portuguese
+      863:Canadian/French
+      865:Nordic
+      Windows code page
+      1250:Central Europe
+      1252:Latin I
+      1253:Greek
+      1254:Turkish
+      以下代码页仅限于 12×24 dot 英数字体
+      WestEurope:WestEurope
+      Greek:Greek
+      Hebrew:Hebrew
+      EastEurope:EastEurope
+      Iran:Iran
+      IranII:IranII
+      Latvian:Latvian
+      Arabic:Arabic
+      Vietnam:Vietnam
+      Uygur:Uygur
+      Thai:Thai
+      1252:Latin I
+      1257:WPC1257
+      1251:WPC1251
+      866:Cyrillic
+      858:PC858
+      747:PC747
+      864:PC864
+      1001:PC100
+      */
+      data = "CODEPAGE " + codepage + "\r\n";
+      jpPrinter.addCommand(data)
+    }
+
+    jpPrinter.setCls = function () { //清除打印机缓存
+      data = "CLS" + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setFeed = function (feed) { //将纸向前推出n
+      data = "FEED " + feed + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setBackFeed = function (backup) { //将纸向后回拉n
+      data = "BACKFEED " + backup + "\r\n";
+      jpPrinter.addCommand(data)
+    }
+
+    jpPrinter.setDirection = function (direction) { //设置打印方向,参考编程手册  
+      data = "DIRECTION " + direction + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setReference = function (x, y) { //设置坐标原点,与打印方向有关
+      data = "REFERENCE " + x + "," + y + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setFromfeed = function () { //根据Size进一张标签纸
+      data = "FORMFEED \r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setHome = function () { //根据Size找到下一张标签纸的位置
+      data = "HOME \r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setSound = function (level, interval) { //控制蜂鸣器
+      data = "SOUND " + level + "," + interval + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setLimitfeed = function (limit) { // 检测垂直间距
+      data = "LIMITFEED " + limit + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setBar = function (x, y, width, height) { //绘制线条
+      data = "BAR " + x + "," + y + "," + width + "," + height + "\r\n"
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setBox = function (x_start, y_start, x_end, y_end, thickness) { //绘制方框
+      data = "BOX " + x_start + "," + y_start + "," + x_end + "," + y_end + "," + thickness + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setErase = function (x_start, y_start, x_width, y_height) { //清除指定区域的数据
+      data = "ERASE " + x_start + "," + y_start + "," + x_width + "," + y_height + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setReverse = function (x_start, y_start, x_width, y_height) { //将指定的区域反相打印
+      data = "REVERSE " + x_start + "," + y_start + "," + x_width + "," + y_height + "\r\n";
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setText = function (x, y, font, x_, y_, str) { //打印文字
+      data = "TEXT " + x + "," + y + ",\"" + font + "\"," + 0 + "," + x_ + "," + y_ + "," + "\"" + str + "\"\r\n"
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setQR = function (x, y, level, width, mode, content) { //打印二维码
+      data = "QRCODE " + x + "," + y + "," + level + "," + width + "," + mode + "," + 0 + ",\"" + content + "\"\r\n"
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setBar = function (x, y, codetype, height, readable, narrow, wide, content) { //打印条形码
+      data = "BARCODE " + x + "," + y + ",\"" + codetype + "\"," + height + "," + readable + "," + 0 + "," + narrow + "," + wide + ",\"" + content + "\"\r\n"
+      jpPrinter.addCommand(data)
+    };
+
+    jpPrinter.setBitmap = function (x, y, mode, res) {  //添加图片,res为画布参数
+      console.log(res)
+      var width = parseInt((res.width + 7) / 8 * 8 / 8)
+      var height = res.height;
+      var time = 1;
+      var temp = res.data.length - width * 32;
+      var pointList = []
+      console.log(width + "--" + height)
+      data = "BITMAP " + x + "," + y + "," + width + "," + height + "," + mode + ","
+      jpPrinter.addCommand(data)
+      for (var i = 0; i < height; ++i) {
+        console.log(temp)
+        for (var j = 0; j < width; ++j) {
+          for (var k = 0; k < 32; k += 4) {
+            if (res.data[temp] == 0 && res.data[temp + 1] == 0 && res.data[temp + 2] == 0 && res.data[temp + 3] == 0) {
+              pointList.push(1)
+            } else {
+              pointList.push(0)
+            }
+            temp += 4
+          }
+        }
+        time++
+        temp = res.data.length - width * 32 * time
+      }
+      for (var i = 0; i < pointList.length; i += 8) {
+        var p = pointList[i] * 128 + pointList[i + 1] * 64 + pointList[i + 2] * 32 + pointList[i + 3] * 16 + pointList[i + 4] * 8 + pointList[i + 5] * 4 + pointList[i + 6] * 2 + pointList[i + 7]
+        command.push(p)
+      }
+    }
+
+    jpPrinter.setPagePrint = function () { //打印页面
+      data = "PRINT 1,1\r\n"
+      jpPrinter.addCommand(data)
+    };
+    //获取打印数据
+    jpPrinter.getData = function () {
+      return command;
+    };
+
+    return jpPrinter;
+  }
+};
+
+module.exports.jpPrinter = jpPrinter;
\ No newline at end of file
diff --git a/sub_pages/supplier/print/print-list.vue b/sub_pages/supplier/print/print-list.vue
new file mode 100644
index 0000000..9fe4546
--- /dev/null
+++ b/sub_pages/supplier/print/print-list.vue
@@ -0,0 +1,666 @@
+<template>
+	<!-- 显示要打印的东西 -->
+	<view class="list-container order-delivery-print supplier">
+		<view class="p15">
+			<view class="m-b-24 order-sale-list list-container">
+				<view class="order-sale-item list-item">
+					<view class="title flex">
+						<view>订单单号:{{item.orderNo}}</view>
+						<view class="m-l-a m-r-0 status">{{item.statusStr}}</view>
+					</view>
+					<view class="line"></view>
+					<view class="flower flex">
+						<image class="image img100 m-r-6" :src="item.flowerCover" @click="previewImg(item.flowerCover)">
+						</image>
+						<view class="flex1">
+							<view class=" flex">
+								<view class="title">{{item.flowerName }}
+								</view>
+							</view>
+							<view class="each-list flex">
+								<view class="each-item">
+									<view class="label">颜色</view>
+									<view class="value">{{ item.flowerColor || '-' }}</view>
+
+								</view>
+								<view class="each-item">
+									<view class="label">规格</view>
+									<view class="value">{{ item.flowerUnit || '-' }}</view>
+								</view>
+							</view>
+						</view>
+						<view class="each-list price">
+							<view class="each-item">
+								<view class="value">¥{{ item.price || '-' }}</view>
+							</view>
+							<view class="each-item">
+								<view class="value">x {{ item.num || 0 }}</view>
+							</view>
+						</view>
+
+					</view>
+					<view class="line"></view>
+					<view class="delivery-form">
+						<view class="form-item">
+							<view class="label">仓库名称</view>
+							<view class="value red">{{item.warehouseName}}</view>
+						</view>
+						<view class="form-item">
+							<view class="label">库位名称</view>
+							<view class="value red">{{item.warehouseLocationCode}}</view>
+						</view>
+
+					</view>
+				</view>
+			</view>
+		</view>
+
+		<view class="print-container m-t-12">
+			<button class="btn" type="primary" @click="startSearch" :loading="isScanning"> 开始搜索 </button>
+			<view v-for="(device,index) of list" :key="device.deviceId" @click="bindViewTap(device)">
+				<view class="item">
+					<div class="deviceId block">{{device.deviceId}}</div>
+					<div class="name block">{{device.name}}</div>
+				</view>
+			</view>
+		</view>
+</template>
+
+<script>
+	var tsc = require("@/plugins/tsc.js");
+	
+	export default {
+		data() {
+			return {
+				item: {},
+				services: [],
+				serviceId: 0,
+				writeCharacter: false,
+				readCharacter: false,
+				notifyCharacter: false,
+				isScanning: false,
+				//打印的
+				sendContent: "",
+				looptime: 0,
+				currentTime: 1,
+				lastData: 0,
+				oneTimeData: 0,
+				returnResult: "",
+				canvasWidth: 80,
+				canvasHeight: 80,
+				buffSize: [],
+				buffIndex: 0,
+				printNum: [],
+				printNumIndex: 0,
+				printerNum: 1,
+				currentPrint:1,
+				isReceiptSend: false,
+				isLabelSend: false
+			}
+		},
+		onLoad() {
+			var t = this.$storage.getItem('cache_delivery_order_print') || ''
+			if (t)
+				this.item = JSON.parse(t)
+		},
+		methods: {
+			/**
+			 * 蓝牙初始化,检查是否已经开启蓝牙
+			 */
+			startSearch: function() {
+				var that = this
+				wx.openBluetoothAdapter({
+					success: function(res) {
+						wx.getBluetoothAdapterState({
+							success: function(res) {
+								if (res.available) {
+									if (res.discovering) {
+										wx.stopBluetoothDevicesDiscovery({
+											success: function(res) {
+												console.log(res)
+											}
+										})
+									}
+									that.checkPemission()
+								} else {
+									wx.showModal({
+										title: '提示',
+										content: '本机蓝牙不可用',
+									})
+								}
+							},
+						})
+					},
+					fail: function() {
+						wx.showModal({
+							title: '提示',
+							content: '蓝牙初始化失败,请打开蓝牙',
+						})
+					}
+				})
+			},
+			/**
+			 * 区分平台开放蓝牙权限
+			 */
+			checkPemission: function() { //android 6.0以上需授权地理位置权限
+				var that = this
+				var platform = app.BLEInformation.platform
+				if (platform == "ios") {
+					app.globalData.platform = "ios"
+					that.getBluetoothDevices()
+				} else if (platform == "android") {
+					app.globalData.platform = "android"
+					console.log(app.getSystem()) //这里是拿到安卓的系统版本名 如:Android 9
+					console.log('输出系统版本号', app.getSystem().substring(app.getSystem().length - (app.getSystem().length -
+						8), app.getSystem().length - (app.getSystem().length - 8) + 1)) //这里为了获取到系统的版本号,如 9
+					var systemVersion = app.getSystem().substring(app.getSystem().length - (app.getSystem().length -
+						8), app.getSystem().length - (app.getSystem().length - 8) + 1)
+					if (systemVersion > 5) {
+						wx.getSetting({
+							success: function(res) {
+								console.log(res) //
+								if (!res.authSetting['scope.userLocation']) {
+									wx.authorize({
+										scope: 'scope.userLocation',
+										complete: function(res) {
+											that.getBluetoothDevices()
+										}
+									})
+								} else {
+									that.getBluetoothDevices()
+								}
+							}
+						})
+					}
+				}
+			},
+
+			/**
+			 * 获取蓝牙设备列表
+			 */
+			getBluetoothDevices: function() {
+				var that = this
+				console.log("开始查找可被使用发现的蓝牙设备")
+				wx.showLoading({
+					title: '获取蓝牙设备中',
+				})
+				that.setData({
+					isScanning: true
+				})
+				wx.startBluetoothDevicesDiscovery({
+					success: function(res) {
+						console.log(res) //输出蓝牙设备列表查找的结果,是否成功
+						setTimeout(function() { //三秒后进行蓝牙设备的获取
+							wx.getBluetoothDevices({
+								success: function(res) {
+									console.log(res)
+									var devices = []
+									var num = 0
+									for (var i = 0; i < res.devices.length; ++i) {
+										if (res.devices[i].name != "未知设备") {
+											//筛选去除名字为未知设备的蓝牙设备
+											devices[num] = res.devices[i]
+											num++
+										}
+									}
+									that.setData({
+										list: devices,
+										isScanning: false
+									}) // 数据赋值 关闭刷新
+									wx.hideLoading()
+									wx.stopPullDownRefresh()
+								},
+							})
+						}, 3000) //到这里 都是三秒后执行的内容
+					},
+				})
+			},
+
+			/**
+			 * 链接到某一个蓝牙设备上
+			 */
+			bindViewTap: function(device) {
+				var that = this
+				wx.stopBluetoothDevicesDiscovery({ //关闭发现蓝牙设备
+					success: function(res) {
+						console.log(res)
+					},
+				})
+				that.setData({
+					serviceId: 0,
+					writeCharacter: false,
+					readCharacter: false,
+					notifyCharacter: false
+				})
+				console.log("e", e)
+				// console.log(e.currentTarget.dataset.title)
+				wx.showLoading({
+					title: '正在建立连接',
+				})
+				// 与蓝牙设备建立链接
+				wx.createBLEConnection({
+					deviceId: e.deviceId,
+					success: function(res) {
+						console.log('连接蓝牙设备成功', res)
+						app.BLEInformation.deviceId = e.deviceId
+						that.getSeviceId() //获取服务ID
+					},
+					fail: function(e) {
+						wx.showModal({
+							title: '提示',
+							content: '连接失败',
+						})
+						console.log('蓝牙设备链接失败', e)
+						wx.hideLoading()
+					},
+					complete: function(e) {
+						console.log(e)
+					}
+				})
+			},
+
+			getSeviceId: function() {
+				var that = this
+				var platform = app.BLEInformation.platform //获取平台信息
+				console.log(app.BLEInformation.deviceId) // 获取设备ID
+				wx.getBLEDeviceServices({
+					deviceId: app.BLEInformation.deviceId,
+					success: function(res) {
+						console.log(res)
+						// 注释内容为方便调试特意直接赋值的一些信息,可以跳过
+						var realId = ''
+						if (platform == 'android') {
+							// for(var i=0;i<res.services.length;++i){
+							// var item = res.services[i].uuid
+							// if (item == "0000FEE7-0000-1000-8000-00805F9B34FB"){
+							realId = "0000FEE7-0000-1000-8000-00805F9B34FB"
+							//       break;
+							//     }
+							// }
+						} else if (platform == 'ios') {
+							// for(var i=0;i<res.services.length;++i){
+							// var item = res.services[i].uuid
+							// if (item == "49535343-FE7D-4AE5-8FA9-9FAFD205E455"){
+							realId = "49535343-FE7D-4AE5-8FA9-9FAFD205E455"
+							// break
+							// }
+							// }
+						}
+						app.BLEInformation.serviceId = realId
+						that.setData({
+							services: res.services
+						}) //将服务信息赋值到公共数据缓存
+						that.getCharacteristics() //获取特征
+					},
+					fail: function(e) {
+						console.log(e)
+					},
+					complete: function(e) {
+						console.log(e)
+					}
+				})
+			},
+
+			/**
+			 * 获取特征信息
+			 */
+			getCharacteristics: function() {
+				var that = this
+				var list = that.data.services
+				var num = that.data.serviceId
+				var write = that.data.writeCharacter
+				var read = that.data.readCharacter
+				var notify = that.data.notifyCharacter
+				wx.getBLEDeviceCharacteristics({ //获取蓝牙设备的特征信息
+					deviceId: app.BLEInformation.deviceId,
+					serviceId: list[num].uuid,
+					success: function(res) {
+						console.log('获取特征成功的结果', res)
+						for (var i = 0; i < res.characteristics.length; ++i) {
+							var properties = res.characteristics[i].properties
+							var item = res.characteristics[i].uuid
+							if (!notify) {
+								if (properties.notify) {
+									app.BLEInformation.notifyCharaterId = item
+									app.BLEInformation.notifyServiceId = list[num].uuid
+									notify = true
+								}
+							}
+							if (!write) {
+								if (properties.write) {
+									app.BLEInformation.writeCharaterId = item
+									app.BLEInformation.writeServiceId = list[num].uuid
+									write = true
+								}
+							}
+							if (!read) {
+								if (properties.read) {
+									app.BLEInformation.readCharaterId = item
+									app.BLEInformation.readServiceId = list[num].uuid
+									read = true
+								}
+							}
+						}
+						if (!write || !notify || !read) {
+							num++
+							that.setData({
+								writeCharacter: write,
+								readCharacter: read,
+								notifyCharacter: notify,
+								serviceId: num
+							})
+							if (num == list.length) {
+								wx.showModal({
+									title: '提示',
+									content: '找不到该读写的特征值',
+								})
+							} else {
+								that.getCharacteristics()
+							}
+						} else {
+							that.openControl()
+						}
+					},
+					fail: function(e) {
+						console.log(e)
+					},
+					complete: function(e) {
+						console.log("write:" + app.BLEInformation.writeCharaterId)
+						console.log("read:" + app.BLEInformation.readCharaterId)
+						console.log("notify:" + app.BLEInformation.notifyCharaterId)
+					}
+				})
+			},
+			openControl() {
+				//打印
+				var that = this;
+				// var canvasWidth = that.data.canvasWidth
+				// var canvasHeight = that.data.canvasHeight
+				var command = tsc.jpPrinter.createNew()
+				command.setSize(48, 40)
+				command.setGap(0)
+				command.setCls()
+				command.setText(0, 30, "TSS24.BF2", 1, 1, "图片")
+				command.setQR(40, 120, "L", 5, "A", "www.smarnet.cc佳博智汇")
+				command.setText(60, 90, "TSS24.BF2", 1, 1, "佳博智汇")
+				command.setText(170, 50, "TSS24.BF2", 1, 1, "小程序测试")
+				command.setText(170, 90, "TSS24.BF2", 1, 1, "测试数字12345678")
+				command.setText(170, 120, "TSS24.BF2", 1, 1, "测试英文abcdefg")
+				command.setText(170, 150, "TSS24.BF2", 1, 1, "测试符号/*-+!@#$")
+				command.setBar(170, 180, "EAN8", 64, 1, 3, 3, "1234567")
+
+				command.setPagePrint()
+				that.setData({
+					isLabelSend: true
+				})
+				that.prepareSend(command.getData())
+
+				// wx.canvasGetImageData({
+				//   canvasId: 'edit_area_canvas',
+				//   x: 0,
+				//   y: 0,
+				//   width: canvasWidth,
+				//   height: canvasHeight,
+				//   success: function(res) {
+				//     command.setBitmap(60, 0, 0, res)
+				//   },
+				//   complete: function() {
+
+				//   }
+				// })
+			},
+			prepareSend: function(buff) {  //准备发送,根据每次发送字节数来处理分包数量
+			  console.log(buff)
+			  var that = this
+			  var time = that.data.oneTimeData
+			  var looptime = parseInt(buff.length / time);
+			  var lastData = parseInt(buff.length % time);
+			  console.log(looptime + "---" + lastData)
+			  that.setData({
+			    looptime: looptime + 1,
+			    lastData: lastData,
+			    currentTime: 1,
+			  })
+			  that.Send(buff)
+			},
+			Send: function(buff) {  //分包发送
+			  var that = this
+			  var currentTime = that.data.currentTime
+			  var loopTime = that.data.looptime
+			  var lastData = that.data.lastData
+			  var onTimeData = that.data.oneTimeData
+			  var printNum = that.data.printerNum
+			  var currentPrint = that.data.currentPrint
+			  var buf
+			  var dataView
+			  if (currentTime < loopTime) {
+			    buf = new ArrayBuffer(onTimeData)
+			    dataView = new DataView(buf)
+			    for (var i = 0; i < onTimeData; ++i) {
+			      dataView.setUint8(i, buff[(currentTime - 1) * onTimeData + i])
+			    }
+			  } else {
+			    buf = new ArrayBuffer(lastData)
+			    dataView = new DataView(buf)
+			    for (var i = 0; i < lastData; ++i) {
+			      dataView.setUint8(i, buff[(currentTime - 1) * onTimeData + i])
+			    }
+			  }
+			  console.log("第" + currentTime + "次发送数据大小为:" + buf.byteLength)
+			  wx.writeBLECharacteristicValue({
+			    deviceId: app.BLEInformation.deviceId,
+			    serviceId: app.BLEInformation.writeServiceId,
+			    characteristicId: app.BLEInformation.writeCharaterId,
+			    value: buf,
+			    success: function(res) {
+			      console.log(res)
+			    },
+			    fail: function(e) {
+			      console.log(e)
+			    },
+			    complete: function() {
+			      currentTime++
+			      if (currentTime <= loopTime) {
+			        that.setData({
+			          currentTime: currentTime
+			        })
+			        that.Send(buff)
+			      } else {
+			        wx.showToast({
+			          title: '已打印第'+currentPrint+'张',
+			        })
+			        if(currentPrint == printNum){
+			          that.setData({
+			            looptime: 0,
+			            lastData: 0,
+			            currentTime: 1,
+			            isReceiptSend: false,
+			            isLabelSend: false,
+			            currentPrint:1
+			          })
+			        }else{
+			          currentPrint++
+			          that.setData({
+			            currentPrint:currentPrint,
+			            currentTime: 1,
+			          })
+			          that.Send(buff)
+			        }
+			      }
+			    }
+			  })
+			
+			},
+		}
+	}
+</script>
+
+<style lang="scss" scoped>
+	.order-delivery-print {
+		.print-container {
+			.btn {
+				margin-top: 50rpx;
+				height: 40px;
+				width: 600rpx;
+				line-height: 40px;
+			}
+
+			/* .item {
+			    padding-top: 10px;
+			    padding-bottom: 10px;
+			     height: 130rpx;
+			     width: 100%;
+			} */
+			.item {
+				display: block;
+				font-family: Arial, Helvetica, sans-serif;
+				font-size: 14px;
+				margin: 0 30px;
+				margin-top: 10px;
+				background-color: #FFA850;
+				border-radius: 5px;
+				border-bottom: 2px solid #68BAEA;
+			}
+
+			.block {
+				display: block;
+				color: #ffffff;
+				padding: 5px;
+			}
+
+			/* pages/bleConnect/bleConnect.wxss */
+		}
+
+		.order-sale-list {
+			.order-sale-item {
+				background-color: #fff;
+				margin-bottom: 20rpx;
+				padding: 22rpx;
+
+				.buttons {
+					display: flex;
+					margin-left: auto;
+					width: fit-content;
+
+					.button {
+						// width: 216rpx;
+						padding: 10rpx 20rpx;
+						line-height: 34rpx;
+						font-size: 24rpx;
+						height: 34rpx;
+						background: #20613D;
+						text-align: center;
+						border-radius: 30rpx;
+
+					}
+
+					.button-1 {
+						background: #fff;
+						color: #333;
+						border: 2rpx solid #333;
+
+					}
+
+					.button-0 {
+						color: #fff;
+						border: 2rpx solid #20613D;
+					}
+				}
+
+				.title {
+					font-weight: 600;
+					font-size: 28rpx;
+					color: #000000;
+					line-height: 40rpx;
+				}
+
+				.status {
+					color: #20613D;
+				}
+
+				.line {
+					min-height: 2rpx;
+					background-color: #EEEEEE;
+					margin-top: 16rpx;
+					margin-bottom: 16rpx;
+				}
+
+				.flower {
+					font-weight: 400;
+					font-size: 24rpx;
+					color: #666666;
+					line-height: 40rpx;
+
+					.image {
+						width: 115rpx;
+						height: 106rpx;
+					}
+
+					.title {
+						font-weight: 600;
+						font-size: 28rpx;
+						color: #000000;
+						line-height: 40rpx;
+					}
+
+					.desc {}
+
+					.price {
+						color: #CF0000;
+					}
+				}
+
+				.form {
+					.form-item {
+						height: unset;
+						// min-height: ;
+					}
+				}
+
+				.delivery-form {
+					display: flex;
+					flex-wrap: wrap;
+
+					.form-item {
+						flex: 1;
+						min-width: 40%;
+						max-width: 50%;
+						display: flex;
+
+						.label {
+							font-weight: 400;
+							font-size: 22rpx;
+							color: #666666;
+							line-height: 34rpx;
+							min-width: 120rpx
+						}
+
+						.label::after {
+							content: ":";
+							font-weight: 400;
+							font-size: 24rpx;
+							color: #666666;
+							line-height: 34rpx;
+						}
+
+						.value {
+							font-weight: 400;
+							font-size: 22rpx;
+							color: #333;
+							line-height: 34rpx;
+						}
+
+						.value.red {
+							color: #CF0000;
+						}
+					}
+
+					.form-item.width100 {
+						max-width: unset;
+					}
+				}
+			}
+		}
+
+	}
+</style>
\ No newline at end of file

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