Initial commit - Dutchie dispensary scraper

backend/node_modules/@zxing/text-encoding/LICENSE.md

@@ -0,0 +1,237 @@
+The encoding indexes, algorithms, and many comments in the code
+derive from the Encoding Standard https://encoding.spec.whatwg.org/
+
+Otherwise, the code of this repository is released under the Unlicense
+license and is also dual-licensed under an Apache 2.0 license. Both
+are included below.
+
+# Unlicense
+
+This is free and unencumbered software released into the public domain.
+
+Anyone is free to copy, modify, publish, use, compile, sell, or
+distribute this software, either in source code form or as a compiled
+binary, for any purpose, commercial or non-commercial, and by any
+means.
+
+In jurisdictions that recognize copyright laws, the author or authors
+of this software dedicate any and all copyright interest in the
+software to the public domain. We make this dedication for the benefit
+of the public at large and to the detriment of our heirs and
+successors. We intend this dedication to be an overt act of
+relinquishment in perpetuity of all present and future rights to this
+software under copyright law.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+For more information, please refer to <http://unlicense.org/>
+
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+
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backend/node_modules/@zxing/text-encoding/README.md

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+text-encoding
+==============
+
+This is a fork of https://github.com/inexorabletash/text-encoding, which
+has been marked as deprecated in the npm registry.
+
+```
+npm info text-encoding
+
+text-encoding@0.7.0 | (Unlicense OR Apache-2.0) | deps: none | versions: 11
+Polyfill for the Encoding Living Standard's API.
+https://github.com/inexorabletash/text-encoding
+
+DEPRECATED ⚠️  - no longer maintained
+
+keywords: encoding, decoding, living standard
+
+dist
+.tarball: https://registry.npmjs.org/text-encoding/-/text-encoding-0.7.0.tgz
+.shasum: f895e836e45990624086601798ea98e8f36ee643
+.integrity: sha512-oJQ3f1hrOnbRLOcwKz0Liq2IcrvDeZRHXhd9RgLrsT+DjWY/nty1Hi7v3dtkaEYbPYe0mUoOfzRrMwfXXwgPUA==
+.unpackedSize: 649.6 kB
+
+maintainers:
+- inexorabletash <inexorabletash@gmail.com>
+
+dist-tags:
+latest: 0.7.0
+
+published a year ago by inexorabletash <inexorabletash@gmail.com>
+```
+
+This fork is published as `@zxing/text-encoding` and will be available as long
+as it is in use by `@zxing` packages.
+
+<hr />
+
+This is a polyfill for the [Encoding Living
+Standard](https://encoding.spec.whatwg.org/) API for the Web, allowing
+encoding and decoding of textual data to and from Typed Array buffers
+for binary data in JavaScript.
+
+By default it adheres to the spec and does not support *encoding* to
+legacy encodings, only *decoding*. It is also implemented to match the
+specification's algorithms, rather than for performance. The intended
+use is within Web pages, so it has no dependency on server frameworks
+or particular module schemes.
+
+Basic examples and tests are included.
+
+### Install ###
+
+There are a few ways you can get and use the `@zxing/text-encoding` library.
+
+### HTML Page Usage ###
+
+Clone the repo and include the files directly:
+
+```html
+  <!-- Required for non-UTF encodings -->
+  <script src="encoding-indexes.js"></script>
+  <script src="encoding.js"></script>
+```
+
+This is the only use case the developer cares about. If you want those
+fancy module and/or package manager things that are popular these days
+you should probably use a different library.
+
+#### Package Managers ####
+
+The package is published to **npm** as `@zxing/text-encoding`.
+Use through these is not really supported, since they aren't used by
+the developer of the library. Using `require()` in interesting ways
+probably breaks. Patches welcome, as long as they don't break the
+basic use of the files via `<script>`.
+
+### API Overview ###
+
+Basic Usage
+
+```js
+  var uint8array = new TextEncoder().encode(string);
+  var string = new TextDecoder(encoding).decode(uint8array);
+```
+
+Streaming Decode
+
+```js
+  var string = "", decoder = new TextDecoder(encoding), buffer;
+  while (buffer = next_chunk()) {
+    string += decoder.decode(buffer, {stream:true});
+  }
+  string += decoder.decode(); // finish the stream
+```
+
+### Encodings ###
+
+All encodings from the Encoding specification are supported:
+
+utf-8 ibm866 iso-8859-2 iso-8859-3 iso-8859-4 iso-8859-5 iso-8859-6
+iso-8859-7 iso-8859-8 iso-8859-8-i iso-8859-10 iso-8859-13 iso-8859-14
+iso-8859-15 iso-8859-16 koi8-r koi8-u macintosh windows-874
+windows-1250 windows-1251 windows-1252 windows-1253 windows-1254
+windows-1255 windows-1256 windows-1257 windows-1258 x-mac-cyrillic
+gb18030 hz-gb-2312 big5 euc-jp iso-2022-jp shift_jis euc-kr
+replacement utf-16be utf-16le x-user-defined
+
+(Some encodings may be supported under other names, e.g. ascii,
+iso-8859-1, etc. See [Encoding](https://encoding.spec.whatwg.org/) for
+additional labels for each encoding.)
+
+Encodings other than **utf-8**, **utf-16le** and **utf-16be** require
+an additional `encoding-indexes.js` file to be included. It is rather
+large (596kB uncompressed, 188kB gzipped); portions may be deleted if
+support for some encodings is not required.
+
+### Non-Standard Behavior ###
+
+As required by the specification, only encoding to **utf-8** is
+supported. If you want to try it out, you can force a non-standard
+behavior by passing the `NONSTANDARD_allowLegacyEncoding` option to
+TextEncoder and a label. For example:
+
+```js
+var uint8array = new TextEncoder(
+  'windows-1252', { NONSTANDARD_allowLegacyEncoding: true }).encode(text);
+```
+
+But note that the above won't work if you're using the polyfill in a
+browser that natively supports the TextEncoder API natively, since the
+polyfill won't be used!
+
+You can force the polyfill to be used by using this before the polyfill:
+
+```html
+<script>
+window.TextEncoder = window.TextDecoder = null;
+</script>
+```
+
+To support the legacy encodings (which may be stateful), the
+TextEncoder `encode()` method accepts an optional dictionary and
+`stream` option, e.g. `encoder.encode(string, {stream: true});` This
+is not needed for standard encoding since the input is always in
+complete code points.

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/Big5Decoder.d.ts

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+import { Stream } from "../../common/Stream";
+/**
+  * @constructor
+  * @implements {Decoder}
+  * @param {{fatal: boolean}} options
+  */
+export declare class Big5Decoder {
+    readonly fatal: boolean;
+    Big5_lead: number;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/Big5Decoder.js

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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+  * @constructor
+  * @implements {Decoder}
+  * @param {{fatal: boolean}} options
+  */
+var Big5Decoder = /** @class */ (function () {
+    function Big5Decoder(options) {
+        this.fatal = options.fatal;
+        // Big5's decoder has an associated Big5 lead (initially 0x00).
+        /** @type {number} */ this.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.
+     */
+    Big5Decoder.prototype.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 === terminology_1.end_of_stream && this.Big5_lead !== 0x00) {
+            this.Big5_lead = 0x00;
+            return encodings_1.decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and Big5 lead is 0x00, return
+        // finished.
+        if (bite === terminology_1.end_of_stream && this.Big5_lead === 0x00)
+            return finished_1.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 (this.Big5_lead !== 0x00) {
+            var lead = this.Big5_lead;
+            var pointer = null;
+            this.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 (utilities_1.inRange(bite, 0x40, 0x7E) || utilities_1.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 :
+                indexes_1.indexCodePointFor(pointer, indexes_1.index('big5'));
+            // 5. If code point is null and byte is an ASCII byte, prepend
+            // byte to stream.
+            if (code_point === null && terminology_1.isASCIIByte(bite))
+                stream.prepend(bite);
+            // 6. If code point is null, return error.
+            if (code_point === null)
+                return encodings_1.decoderError(this.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 (terminology_1.isASCIIByte(bite))
+            return bite;
+        // 5. If byte is in the range 0x81 to 0xFE, inclusive, set Big5
+        // lead to byte and return continue.
+        if (utilities_1.inRange(bite, 0x81, 0xFE)) {
+            this.Big5_lead = bite;
+            return null;
+        }
+        // 6. Return error.
+        return encodings_1.decoderError(this.fatal);
+    };
+    return Big5Decoder;
+}());
+exports.Big5Decoder = Big5Decoder;
+//# sourceMappingURL=Big5Decoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/Big5Decoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"Big5Decoder.js","sourceRoot":"","sources":["../../../../src/coders/big5/Big5Decoder.ts"],"names":[],"mappings":";;AACA,sDAAwD;AACxD,oDAAmD;AACnD,kDAAkE;AAClE,0DAAwE;AACxE,sDAAmD;AAEnD;;;;IAII;AACJ;IAME,qBAAY,OAA4B;QACtC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;QAC3B,+DAA+D;QAC/D,qBAAqB,CAAC,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC;IAC9C,CAAC;IAED;;;;;;OAMG;IACH,6BAAO,GAAP,UAAQ,MAAc,EAAE,IAAY;QAClC,6DAA6D;QAC7D,sCAAsC;QACtC,IAAI,IAAI,KAAK,2BAAa,IAAI,IAAI,CAAC,SAAS,KAAK,IAAI,EAAE;YACrD,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC;YACtB,OAAO,wBAAY,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;SACjC;QAED,4DAA4D;QAC5D,YAAY;QACZ,IAAI,IAAI,KAAK,2BAAa,IAAI,IAAI,CAAC,SAAS,KAAK,IAAI;YACnD,OAAO,mBAAQ,CAAC;QAElB,0DAA0D;QAC1D,6DAA6D;QAC7D,YAAY;QACZ,IAAI,IAAI,CAAC,SAAS,KAAK,IAAI,EAAE;YAC3B,IAAM,IAAI,GAAG,IAAI,CAAC,SAAS,CAAC;YAC5B,IAAI,OAAO,GAAW,IAAI,CAAC;YAC3B,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC;YAEtB,2DAA2D;YAC3D,aAAa;YACb,IAAM,MAAM,GAAG,IAAI,GAAG,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC;YAEzC,8DAA8D;YAC9D,2DAA2D;YAC3D,mBAAmB;YACnB,IAAI,mBAAO,CAAC,IAAI,EAAE,IAAI,EAAE,IAAI,CAAC,IAAI,mBAAO,CAAC,IAAI,EAAE,IAAI,EAAE,IAAI,CAAC;gBACxD,OAAO,GAAG,CAAC,IAAI,GAAG,IAAI,CAAC,GAAG,GAAG,GAAG,CAAC,IAAI,GAAG,MAAM,CAAC,CAAC;YAElD,6DAA6D;YAC7D,8DAA8D;YAC9D,SAAS;YACT,wBAAwB;YACxB,0BAA0B;YAC1B,0BAA0B;YAC1B,0BAA0B;YAC1B,0BAA0B;YAC1B,0BAA0B;YAC1B,QAAQ,OAAO,EAAE;gBACf,KAAK,IAAI,CAAC,CAAC,OAAO,CAAC,MAAM,EAAE,MAAM,CAAC,CAAC;gBACnC,KAAK,IAAI,CAAC,CAAC,OAAO,CAAC,MAAM,EAAE,MAAM,CAAC,CAAC;gBACnC,KAAK,IAAI,CAAC,CAAC,OAAO,CAAC,MAAM,EAAE,MAAM,CAAC,CAAC;gBACnC,KAAK,IAAI,CAAC,CAAC,OAAO,CAAC,MAAM,EAAE,MAAM,CAAC,CAAC;aACpC;YAED,6DAA6D;YAC7D,kDAAkD;YAClD,IAAM,UAAU,GAAG,CAAC,OAAO,KAAK,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC;gBAC5C,2BAAiB,CAAC,OAAO,EAAE,eAAK,CAAC,MAAM,CAAa,CAAC,CAAC;YAExD,8DAA8D;YAC9D,kBAAkB;YAClB,IAAI,UAAU,KAAK,IAAI,IAAI,yBAAW,CAAC,IAAI,CAAC;gBAC1C,MAAM,CAAC,OAAO,CAAC,IAAI,CAAC,CAAC;YAEvB,0CAA0C;YAC1C,IAAI,UAAU,KAAK,IAAI;gBACrB,OAAO,wBAAY,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;YAElC,oDAAoD;YACpD,OAAO,UAAU,CAAC;SACnB;QAED,+DAA+D;QAC/D,WAAW;QACX,IAAI,yBAAW,CAAC,IAAI,CAAC;YACnB,OAAO,IAAI,CAAC;QAEd,+DAA+D;QAC/D,oCAAoC;QACpC,IAAI,mBAAO,CAAC,IAAI,EAAE,IAAI,EAAE,IAAI,CAAC,EAAE;YAC7B,IAAI,CAAC,SAAS,GAAG,IAAI,CAAC;YACtB,OAAO,IAAI,CAAC;SACb;QAED,mBAAmB;QACnB,OAAO,wBAAY,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;IAClC,CAAC;IACH,kBAAC;AAAD,CAAC,AAnGD,IAmGC;AAnGY,kCAAW"}

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/Big5Encoder.d.ts

@@ -0,0 +1,18 @@
+import { Stream } from "../../common/Stream";
+/**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+export declare class Big5Encoder {
+    readonly fatal: boolean;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/Big5Encoder.js

@@ -0,0 +1,50 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+/**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+var Big5Encoder = /** @class */ (function () {
+    function Big5Encoder(options) {
+        this.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.
+     */
+    Big5Encoder.prototype.handler = function (stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (terminology_1.isASCIICodePoint(code_point))
+            return code_point;
+        // 3. Let pointer be the index Big5 pointer for code point.
+        var pointer = indexes_1.indexBig5PointerFor(code_point);
+        // 4. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encodings_1.encoderError(code_point);
+        // 5. Let lead be Math.floor(pointer / 157) + 0x81.
+        var lead = Math.floor(pointer / 157) + 0x81;
+        // 6. If lead is less than 0xA1, return error with code point.
+        if (lead < 0xA1)
+            return encodings_1.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];
+    };
+    return Big5Encoder;
+}());
+exports.Big5Encoder = Big5Encoder;
+//# sourceMappingURL=Big5Encoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/Big5Encoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"Big5Encoder.js","sourceRoot":"","sources":["../../../../src/coders/big5/Big5Encoder.ts"],"names":[],"mappings":";;AACA,sDAAwD;AACxD,oDAAmD;AACnD,kDAA6D;AAC7D,0DAA6E;AAE7E;;;;KAIK;AACL;IAIE,qBAAY,OAA4B;QACtC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;OAIG;IACH,6BAAO,GAAP,UAAQ,MAAc,EAAE,UAAkB;QACxC,sDAAsD;QACtD,IAAI,UAAU,KAAK,2BAAa;YAC9B,OAAO,mBAAQ,CAAC;QAElB,+DAA+D;QAC/D,uBAAuB;QACvB,IAAI,8BAAgB,CAAC,UAAU,CAAC;YAC9B,OAAO,UAAU,CAAC;QAEpB,2DAA2D;QAC3D,IAAM,OAAO,GAAG,6BAAmB,CAAC,UAAU,CAAC,CAAC;QAEhD,uDAAuD;QACvD,IAAI,OAAO,KAAK,IAAI;YAClB,OAAO,wBAAY,CAAC,UAAU,CAAC,CAAC;QAElC,mDAAmD;QACnD,IAAM,IAAI,GAAG,IAAI,CAAC,KAAK,CAAC,OAAO,GAAG,GAAG,CAAC,GAAG,IAAI,CAAC;QAE9C,8DAA8D;QAC9D,IAAI,IAAI,GAAG,IAAI;YACb,OAAO,wBAAY,CAAC,UAAU,CAAC,CAAC;QAElC,iCAAiC;QACjC,IAAM,KAAK,GAAG,OAAO,GAAG,GAAG,CAAC;QAE5B,4DAA4D;QAC5D,aAAa;QACb,IAAM,MAAM,GAAG,KAAK,GAAG,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC;QAE1C,6DAA6D;QAC7D,OAAO,CAAC,IAAI,EAAE,KAAK,GAAG,MAAM,CAAC,CAAC;IAChC,CAAC;IACH,kBAAC;AAAD,CAAC,AA/CD,IA+CC;AA/CY,kCAAW"}

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/index.d.ts

@@ -0,0 +1,2 @@
+export * from './Big5Decoder';
+export * from './Big5Encoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./Big5Decoder"));
+__export(require("./Big5Encoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/big5/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/big5/index.ts"],"names":[],"mappings":";;;;;AAAA,mCAA8B;AAC9B,mCAA8B"}

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/EUCJPDecoder.d.ts

@@ -0,0 +1,22 @@
+import { Stream } from "../../common";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class EUCJPDecoder {
+    readonly fatal: boolean;
+    eucjp_jis0212_flag: boolean;
+    eucjp_lead: number;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/EUCJPDecoder.js

@@ -0,0 +1,96 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+var EUCJPDecoder = /** @class */ (function () {
+    function EUCJPDecoder(options) {
+        this.fatal = options.fatal;
+        // euc-jp's decoder has an associated euc-jp jis0212 flag
+        // (initially unset) and euc-jp lead (initially 0x00).
+        /** @type {boolean} */ this.eucjp_jis0212_flag = false,
+            /** @type {number} */ this.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.
+     */
+    EUCJPDecoder.prototype.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 === terminology_1.end_of_stream && this.eucjp_lead !== 0x00) {
+            this.eucjp_lead = 0x00;
+            return encodings_1.decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and euc-jp lead is 0x00, return
+        // finished.
+        if (bite === terminology_1.end_of_stream && this.eucjp_lead === 0x00)
+            return finished_1.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 (this.eucjp_lead === 0x8E && utilities_1.inRange(bite, 0xA1, 0xDF)) {
+            this.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 (this.eucjp_lead === 0x8F && utilities_1.inRange(bite, 0xA1, 0xFE)) {
+            this.eucjp_jis0212_flag = true;
+            this.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 (this.eucjp_lead !== 0x00) {
+            var lead = this.eucjp_lead;
+            this.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 (utilities_1.inRange(lead, 0xA1, 0xFE) && utilities_1.inRange(bite, 0xA1, 0xFE)) {
+                code_point = indexes_1.indexCodePointFor((lead - 0xA1) * 94 + (bite - 0xA1), indexes_1.index(!this.eucjp_jis0212_flag ? 'jis0208' : 'jis0212'));
+            }
+            // 3. Unset the euc-jp jis0212 flag.
+            this.eucjp_jis0212_flag = false;
+            // 4. If byte is not in the range 0xA1 to 0xFE, inclusive,
+            // prepend byte to stream.
+            if (!utilities_1.inRange(bite, 0xA1, 0xFE))
+                stream.prepend(bite);
+            // 5. If code point is null, return error.
+            if (code_point === null)
+                return encodings_1.decoderError(this.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 (terminology_1.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 || utilities_1.inRange(bite, 0xA1, 0xFE)) {
+            this.eucjp_lead = bite;
+            return null;
+        }
+        // 8. Return error.
+        return encodings_1.decoderError(this.fatal);
+    };
+    return EUCJPDecoder;
+}());
+exports.EUCJPDecoder = EUCJPDecoder;
+//# sourceMappingURL=EUCJPDecoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/EUCJPDecoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/EUCJPEncoder.d.ts

@@ -0,0 +1,18 @@
+import { Stream } from "../../common";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class EUCJPEncoder {
+    readonly fatal: boolean;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/EUCJPEncoder.js

@@ -0,0 +1,60 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+var EUCJPEncoder = /** @class */ (function () {
+    function EUCJPEncoder(options) {
+        this.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.
+     */
+    EUCJPEncoder.prototype.handler = function (stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (terminology_1.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 (utilities_1.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 = indexes_1.indexPointerFor(code_point, indexes_1.index('jis0208'));
+        // 8. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encodings_1.encoderError(code_point);
+        // 9. Let lead be Math.floor(pointer / 94) + 0xA1.
+        var lead = Math.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];
+    };
+    return EUCJPEncoder;
+}());
+exports.EUCJPEncoder = EUCJPEncoder;
+//# sourceMappingURL=EUCJPEncoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/EUCJPEncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/index.d.ts

@@ -0,0 +1,2 @@
+export * from './EUCJPDecoder';
+export * from './EUCJPEncoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./EUCJPDecoder"));
+__export(require("./EUCJPEncoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-jp/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/euc-jp/index.ts"],"names":[],"mappings":";;;;;AAAA,oCAA+B;AAC/B,oCAA+B"}

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/EUCKRDecoder.d.ts

@@ -0,0 +1,21 @@
+import { Stream } from "../../common";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class EUCKRDecoder {
+    readonly fatal: boolean;
+    euckr_lead: number;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/EUCKRDecoder.js

@@ -0,0 +1,78 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+var EUCKRDecoder = /** @class */ (function () {
+    function EUCKRDecoder(options) {
+        this.fatal = options.fatal;
+        // euc-kr's decoder has an associated euc-kr lead (initially 0x00).
+        /** @type {number} */ this.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.
+     */
+    EUCKRDecoder.prototype.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 === terminology_1.end_of_stream && this.euckr_lead !== 0) {
+            this.euckr_lead = 0x00;
+            return encodings_1.decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and euc-kr lead is 0x00, return
+        // finished.
+        if (bite === terminology_1.end_of_stream && this.euckr_lead === 0)
+            return finished_1.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 (this.euckr_lead !== 0x00) {
+            var lead = this.euckr_lead;
+            var pointer = null;
+            this.euckr_lead = 0x00;
+            // 1. If byte is in the range 0x41 to 0xFE, inclusive, set
+            // pointer to (lead − 0x81) × 190 + (byte − 0x41).
+            if (utilities_1.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 : indexes_1.indexCodePointFor(pointer, indexes_1.index('euc-kr'));
+            // 3. If code point is null and byte is an ASCII byte, prepend
+            // byte to stream.
+            if (pointer === null && terminology_1.isASCIIByte(bite))
+                stream.prepend(bite);
+            // 4. If code point is null, return error.
+            if (code_point === null)
+                return encodings_1.decoderError(this.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 (terminology_1.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 (utilities_1.inRange(bite, 0x81, 0xFE)) {
+            this.euckr_lead = bite;
+            return null;
+        }
+        // 6. Return error.
+        return encodings_1.decoderError(this.fatal);
+    };
+    return EUCKRDecoder;
+}());
+exports.EUCKRDecoder = EUCKRDecoder;
+//# sourceMappingURL=EUCKRDecoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/EUCKRDecoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/EUCKREncoder.d.ts

@@ -0,0 +1,18 @@
+import { Stream } from "../../common";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class EUCKREncoder {
+    readonly fatal: boolean;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/EUCKREncoder.js

@@ -0,0 +1,45 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+var EUCKREncoder = /** @class */ (function () {
+    function EUCKREncoder(options) {
+        this.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.
+     */
+    EUCKREncoder.prototype.handler = function (stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (terminology_1.isASCIICodePoint(code_point))
+            return code_point;
+        // 3. Let pointer be the index pointer for code point in index
+        // euc-kr.
+        var pointer = indexes_1.indexPointerFor(code_point, indexes_1.index('euc-kr'));
+        // 4. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encodings_1.encoderError(code_point);
+        // 5. Let lead be Math.floor(pointer / 190) + 0x81.
+        var lead = Math.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];
+    };
+    return EUCKREncoder;
+}());
+exports.EUCKREncoder = EUCKREncoder;
+//# sourceMappingURL=EUCKREncoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/EUCKREncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/index.d.ts

@@ -0,0 +1,2 @@
+export * from './EUCKRDecoder';
+export * from './EUCKREncoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./EUCKRDecoder"));
+__export(require("./EUCKREncoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/euc-kr/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/euc-kr/index.ts"],"names":[],"mappings":";;;;;AAAA,oCAA+B;AAC/B,oCAA+B"}

backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/GB18030Decoder.d.ts

@@ -0,0 +1,23 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class GB18030Decoder {
+    readonly fatal: boolean;
+    gb18030_first: number;
+    gb18030_second: number;
+    gb18030_third: number;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/GB18030Decoder.js

@@ -0,0 +1,146 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+var GB18030Decoder = /** @class */ (function () {
+    function GB18030Decoder(options) {
+        this.fatal = options.fatal;
+        // gb18030's decoder has an associated gb18030 first, gb18030
+        // second, and gb18030 third (all initially 0x00).
+        /** @type {number} */ this.gb18030_first = 0x00,
+            /** @type {number} */ this.gb18030_second = 0x00,
+            /** @type {number} */ this.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.
+     */
+    GB18030Decoder.prototype.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 === terminology_1.end_of_stream && this.gb18030_first === 0x00 &&
+            this.gb18030_second === 0x00 && this.gb18030_third === 0x00) {
+            return finished_1.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 === terminology_1.end_of_stream &&
+            (this.gb18030_first !== 0x00 || this.gb18030_second !== 0x00 ||
+                this.gb18030_third !== 0x00)) {
+            this.gb18030_first = 0x00;
+            this.gb18030_second = 0x00;
+            this.gb18030_third = 0x00;
+            encodings_1.decoderError(this.fatal);
+        }
+        var code_point;
+        // 3. If gb18030 third is not 0x00, run these substeps:
+        if (this.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 (utilities_1.inRange(bite, 0x30, 0x39)) {
+                code_point = indexes_1.indexGB18030RangesCodePointFor((((this.gb18030_first - 0x81) * 10 + this.gb18030_second - 0x30) * 126 +
+                    this.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 = [this.gb18030_second, this.gb18030_third, bite];
+            // 4. Set gb18030 first, gb18030 second, and gb18030 third to
+            // 0x00.
+            this.gb18030_first = 0x00;
+            this.gb18030_second = 0x00;
+            this.gb18030_third = 0x00;
+            // 5. If code point is null, prepend buffer to stream and
+            // return error.
+            if (code_point === null) {
+                stream.prepend(buffer);
+                return encodings_1.decoderError(this.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 (this.gb18030_second !== 0x00) {
+            // 1. If byte is in the range 0x81 to 0xFE, inclusive, set
+            // gb18030 third to byte and return continue.
+            if (utilities_1.inRange(bite, 0x81, 0xFE)) {
+                this.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([this.gb18030_second, bite]);
+            this.gb18030_first = 0x00;
+            this.gb18030_second = 0x00;
+            return encodings_1.decoderError(this.fatal);
+        }
+        // 5. If gb18030 first is not 0x00, run these substeps:
+        if (this.gb18030_first !== 0x00) {
+            // 1. If byte is in the range 0x30 to 0x39, inclusive, set
+            // gb18030 second to byte and return continue.
+            if (utilities_1.inRange(bite, 0x30, 0x39)) {
+                this.gb18030_second = bite;
+                return null;
+            }
+            // 2. Let lead be gb18030 first, let pointer be null, and set
+            // gb18030 first to 0x00.
+            var lead = this.gb18030_first;
+            var pointer = null;
+            this.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 (utilities_1.inRange(bite, 0x40, 0x7E) || utilities_1.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 :
+                indexes_1.indexCodePointFor(pointer, indexes_1.index('gb18030'));
+            // 6. If code point is null and byte is an ASCII byte, prepend
+            // byte to stream.
+            if (code_point === null && terminology_1.isASCIIByte(bite))
+                stream.prepend(bite);
+            // 7. If code point is null, return error.
+            if (code_point === null)
+                return encodings_1.decoderError(this.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 (terminology_1.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 (utilities_1.inRange(bite, 0x81, 0xFE)) {
+            this.gb18030_first = bite;
+            return null;
+        }
+        // 9. Return error.
+        return encodings_1.decoderError(this.fatal);
+    };
+    return GB18030Decoder;
+}());
+exports.GB18030Decoder = GB18030Decoder;
+//# sourceMappingURL=GB18030Decoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/GB18030Decoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/GB18030Encoder.d.ts

@@ -0,0 +1,20 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ * @param {boolean=} gbk_flag
+ */
+export declare class GB18030Encoder {
+    private gbk_flag;
+    readonly fatal: boolean;
+    constructor(options: {
+        fatal: boolean;
+    }, gbk_flag?: boolean);
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/GB18030Encoder.js

@@ -0,0 +1,82 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ * @param {boolean=} gbk_flag
+ */
+var GB18030Encoder = /** @class */ (function () {
+    function GB18030Encoder(options, gbk_flag) {
+        if (gbk_flag === void 0) { gbk_flag = undefined; }
+        this.gbk_flag = gbk_flag;
+        this.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.
+     */
+    GB18030Encoder.prototype.handler = function (stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (terminology_1.isASCIICodePoint(code_point))
+            return code_point;
+        // 3. If code point is U+E5E5, return error with code point.
+        if (code_point === 0xE5E5)
+            return encodings_1.encoderError(code_point);
+        // 4. If the gbk flag is set and code point is U+20AC, return
+        // byte 0x80.
+        if (this.gbk_flag && code_point === 0x20AC)
+            return 0x80;
+        // 5. Let pointer be the index pointer for code point in index
+        // gb18030.
+        var pointer = indexes_1.indexPointerFor(code_point, indexes_1.index('gb18030'));
+        // 6. If pointer is not null, run these substeps:
+        if (pointer !== null) {
+            // 1. Let lead be Math.floor(pointer / 190) + 0x81.
+            var lead = Math.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 (this.gbk_flag)
+            return encodings_1.encoderError(code_point);
+        // 8. Set pointer to the index gb18030 ranges pointer for code
+        // point.
+        pointer = indexes_1.indexGB18030RangesPointerFor(code_point);
+        // 9. Let byte1 be Math.floor(pointer / 10 / 126 / 10).
+        var byte1 = Math.floor(pointer / 10 / 126 / 10);
+        // 10. Set pointer to pointer − byte1 × 10 × 126 × 10.
+        pointer = pointer - byte1 * 10 * 126 * 10;
+        // 11. Let byte2 be Math.floor(pointer / 10 / 126).
+        var byte2 = Math.floor(pointer / 10 / 126);
+        // 12. Set pointer to pointer − byte2 × 10 × 126.
+        pointer = pointer - byte2 * 10 * 126;
+        // 13. Let byte3 be Math.floor(pointer / 10).
+        var byte3 = Math.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];
+    };
+    return GB18030Encoder;
+}());
+exports.GB18030Encoder = GB18030Encoder;
+//# sourceMappingURL=GB18030Encoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/GB18030Encoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/index.d.ts

@@ -0,0 +1,2 @@
+export * from './GB18030Decoder';
+export * from './GB18030Encoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./GB18030Decoder"));
+__export(require("./GB18030Encoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/gb18030/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/gb18030/index.ts"],"names":[],"mappings":";;;;;AAAA,sCAAiC;AACjC,sCAAiC"}

backend/node_modules/@zxing/text-encoding/cjs/coders/iso-2022-jp/ISO2022JPDecoder.d.ts

@@ -0,0 +1,24 @@
+import { Stream } from "../../common/Stream";
+export declare class ISO2022JPDecoder {
+    readonly fatal: boolean;
+    iso2022jp_decoder_state: any;
+    iso2022jp_decoder_output_state: any;
+    iso2022jp_lead: number;
+    iso2022jp_output_flag: boolean;
+    /**
+     * @constructor
+     * @implements {Decoder}
+     * @param {{fatal: boolean}} options
+     */
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/iso-2022-jp/ISO2022JPDecoder.js

@@ -0,0 +1,272 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+var states;
+(function (states) {
+    states[states["ASCII"] = 0] = "ASCII";
+    states[states["Roman"] = 1] = "Roman";
+    states[states["Katakana"] = 2] = "Katakana";
+    states[states["LeadByte"] = 3] = "LeadByte";
+    states[states["TrailByte"] = 4] = "TrailByte";
+    states[states["EscapeStart"] = 5] = "EscapeStart";
+    states[states["Escape"] = 6] = "Escape";
+})(states || (states = {}));
+var ISO2022JPDecoder = /** @class */ (function () {
+    /**
+     * @constructor
+     * @implements {Decoder}
+     * @param {{fatal: boolean}} options
+     */
+    function ISO2022JPDecoder(options) {
+        this.fatal = options.fatal;
+        // 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).
+        /** @type {number} */ this.iso2022jp_decoder_state = states.ASCII,
+            /** @type {number} */ this.iso2022jp_decoder_output_state = states.ASCII,
+            /** @type {number} */ this.iso2022jp_lead = 0x00,
+            /** @type {boolean} */ this.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.
+     */
+    ISO2022JPDecoder.prototype.handler = function (stream, bite) {
+        // switching on iso-2022-jp decoder state:
+        switch (this.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.
+                    this.iso2022jp_decoder_state = states.EscapeStart;
+                    return null;
+                }
+                // 0x00 to 0x7F, excluding 0x0E, 0x0F, and 0x1B
+                if (utilities_1.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.
+                    this.iso2022jp_output_flag = false;
+                    return bite;
+                }
+                // end-of-stream
+                if (bite === terminology_1.end_of_stream) {
+                    // Return finished.
+                    return finished_1.finished;
+                }
+                // Otherwise
+                // Unset the iso-2022-jp output flag and return error.
+                this.iso2022jp_output_flag = false;
+                return encodings_1.decoderError(this.fatal);
+            case states.Roman:
+                // Roman
+                // Based on byte:
+                // 0x1B
+                if (bite === 0x1B) {
+                    // Set iso-2022-jp decoder state to escape start and return
+                    // continue.
+                    this.iso2022jp_decoder_state = states.EscapeStart;
+                    return null;
+                }
+                // 0x5C
+                if (bite === 0x5C) {
+                    // Unset the iso-2022-jp output flag and return code point
+                    // U+00A5.
+                    this.iso2022jp_output_flag = false;
+                    return 0x00A5;
+                }
+                // 0x7E
+                if (bite === 0x7E) {
+                    // Unset the iso-2022-jp output flag and return code point
+                    // U+203E.
+                    this.iso2022jp_output_flag = false;
+                    return 0x203E;
+                }
+                // 0x00 to 0x7F, excluding 0x0E, 0x0F, 0x1B, 0x5C, and 0x7E
+                if (utilities_1.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.
+                    this.iso2022jp_output_flag = false;
+                    return bite;
+                }
+                // end-of-stream
+                if (bite === terminology_1.end_of_stream) {
+                    // Return finished.
+                    return finished_1.finished;
+                }
+                // Otherwise
+                // Unset the iso-2022-jp output flag and return error.
+                this.iso2022jp_output_flag = false;
+                return encodings_1.decoderError(this.fatal);
+            case states.Katakana:
+                // Katakana
+                // Based on byte:
+                // 0x1B
+                if (bite === 0x1B) {
+                    // Set iso-2022-jp decoder state to escape start and return
+                    // continue.
+                    this.iso2022jp_decoder_state = states.EscapeStart;
+                    return null;
+                }
+                // 0x21 to 0x5F
+                if (utilities_1.inRange(bite, 0x21, 0x5F)) {
+                    // Unset the iso-2022-jp output flag and return a code point
+                    // whose value is 0xFF61 − 0x21 + byte.
+                    this.iso2022jp_output_flag = false;
+                    return 0xFF61 - 0x21 + bite;
+                }
+                // end-of-stream
+                if (bite === terminology_1.end_of_stream) {
+                    // Return finished.
+                    return finished_1.finished;
+                }
+                // Otherwise
+                // Unset the iso-2022-jp output flag and return error.
+                this.iso2022jp_output_flag = false;
+                return encodings_1.decoderError(this.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.
+                    this.iso2022jp_decoder_state = states.EscapeStart;
+                    return null;
+                }
+                // 0x21 to 0x7E
+                if (utilities_1.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.
+                    this.iso2022jp_output_flag = false;
+                    this.iso2022jp_lead = bite;
+                    this.iso2022jp_decoder_state = states.TrailByte;
+                    return null;
+                }
+                // end-of-stream
+                if (bite === terminology_1.end_of_stream) {
+                    // Return finished.
+                    return finished_1.finished;
+                }
+                // Otherwise
+                // Unset the iso-2022-jp output flag and return error.
+                this.iso2022jp_output_flag = false;
+                return encodings_1.decoderError(this.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.
+                    this.iso2022jp_decoder_state = states.EscapeStart;
+                    return encodings_1.decoderError(this.fatal);
+                }
+                // 0x21 to 0x7E
+                if (utilities_1.inRange(bite, 0x21, 0x7E)) {
+                    // 1. Set the iso-2022-jp decoder state to lead byte.
+                    this.iso2022jp_decoder_state = states.LeadByte;
+                    // 2. Let pointer be (iso-2022-jp lead − 0x21) × 94 + byte − 0x21.
+                    var pointer = (this.iso2022jp_lead - 0x21) * 94 + bite - 0x21;
+                    // 3. Let code point be the index code point for pointer in
+                    // index jis0208.
+                    var code_point = indexes_1.indexCodePointFor(pointer, indexes_1.index('jis0208'));
+                    // 4. If code point is null, return error.
+                    if (code_point === null)
+                        return encodings_1.decoderError(this.fatal);
+                    // 5. Return a code point whose value is code point.
+                    return code_point;
+                }
+                // end-of-stream
+                if (bite === terminology_1.end_of_stream) {
+                    // Set the iso-2022-jp decoder state to lead byte, prepend
+                    // byte to stream, and return error.
+                    this.iso2022jp_decoder_state = states.LeadByte;
+                    stream.prepend(bite);
+                    return encodings_1.decoderError(this.fatal);
+                }
+                // Otherwise
+                // Set iso-2022-jp decoder state to lead byte and return
+                // error.
+                this.iso2022jp_decoder_state = states.LeadByte;
+                return encodings_1.decoderError(this.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) {
+                    this.iso2022jp_lead = bite;
+                    this.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.
+                this.iso2022jp_output_flag = false;
+                this.iso2022jp_decoder_state = this.iso2022jp_decoder_output_state;
+                return encodings_1.decoderError(this.fatal);
+            case states.Escape:
+                // Escape
+                // 1. Let lead be iso-2022-jp lead and set iso-2022-jp lead to
+                // 0x00.
+                var lead = this.iso2022jp_lead;
+                this.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.
+                    this.iso2022jp_decoder_state = this.iso2022jp_decoder_state = state;
+                    // 2. Let output flag be the iso-2022-jp output flag.
+                    var output_flag = this.iso2022jp_output_flag;
+                    // 3. Set the iso-2022-jp output flag.
+                    this.iso2022jp_output_flag = true;
+                    // 4. Return continue, if output flag is unset, and error
+                    // otherwise.
+                    return !output_flag ? null : encodings_1.decoderError(this.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.
+                this.iso2022jp_output_flag = false;
+                this.iso2022jp_decoder_state = this.iso2022jp_decoder_output_state;
+                return encodings_1.decoderError(this.fatal);
+        }
+    };
+    return ISO2022JPDecoder;
+}());
+exports.ISO2022JPDecoder = ISO2022JPDecoder;
+//# sourceMappingURL=ISO2022JPDecoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/iso-2022-jp/ISO2022JPEncoder.d.ts

@@ -0,0 +1,25 @@
+import { Stream } from "../../common/Stream";
+declare enum states {
+    ASCII = 0,
+    Roman = 1,
+    jis0208 = 2
+}
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class ISO2022JPEncoder {
+    readonly fatal: boolean;
+    iso2022jp_state: states;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}
+export {};

backend/node_modules/@zxing/text-encoding/cjs/coders/iso-2022-jp/ISO2022JPEncoder.js

@@ -0,0 +1,124 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var states;
+(function (states) {
+    states[states["ASCII"] = 0] = "ASCII";
+    states[states["Roman"] = 1] = "Roman";
+    states[states["jis0208"] = 2] = "jis0208";
+})(states || (states = {}));
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+var ISO2022JPEncoder = /** @class */ (function () {
+    function ISO2022JPEncoder(options) {
+        this.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).
+        /** @type {number} */ this.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.
+     */
+    ISO2022JPEncoder.prototype.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 === terminology_1.end_of_stream &&
+            this.iso2022jp_state !== states.ASCII) {
+            stream.prepend(code_point);
+            this.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 === terminology_1.end_of_stream && this.iso2022jp_state === states.ASCII)
+            return finished_1.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 ((this.iso2022jp_state === states.ASCII ||
+            this.iso2022jp_state === states.Roman) &&
+            (code_point === 0x000E || code_point === 0x000F ||
+                code_point === 0x001B)) {
+            return encodings_1.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 (this.iso2022jp_state === states.ASCII &&
+            terminology_1.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 (this.iso2022jp_state === states.Roman &&
+            ((terminology_1.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 (terminology_1.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 (terminology_1.isASCIICodePoint(code_point) &&
+            this.iso2022jp_state !== states.ASCII) {
+            stream.prepend(code_point);
+            this.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) &&
+            this.iso2022jp_state !== states.Roman) {
+            stream.prepend(code_point);
+            this.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 = indexes_1.indexPointerFor(code_point, indexes_1.index('jis0208'));
+        // 10. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encodings_1.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 (this.iso2022jp_state !== states.jis0208) {
+            stream.prepend(code_point);
+            this.iso2022jp_state = states.jis0208;
+            return [0x1B, 0x24, 0x42];
+        }
+        // 12. Let lead be Math.floor(pointer / 94) + 0x21.
+        var lead = Math.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];
+    };
+    return ISO2022JPEncoder;
+}());
+exports.ISO2022JPEncoder = ISO2022JPEncoder;
+//# sourceMappingURL=ISO2022JPEncoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/iso-2022-jp/ISO2022JPEncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/iso-2022-jp/index.d.ts

@@ -0,0 +1,2 @@
+export * from './ISO2022JPDecoder';
+export * from './ISO2022JPEncoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/iso-2022-jp/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./ISO2022JPDecoder"));
+__export(require("./ISO2022JPEncoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/iso-2022-jp/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/iso-2022-jp/index.ts"],"names":[],"mappings":";;;;;AAAA,wCAAmC;AACnC,wCAAmC"}

backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/ShiftJISDecoder.d.ts

@@ -0,0 +1,21 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class ShiftJISDecoder {
+    readonly fatal: boolean;
+    Shift_JIS_lead: number;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/ShiftJISDecoder.js

@@ -0,0 +1,95 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+var ShiftJISDecoder = /** @class */ (function () {
+    function ShiftJISDecoder(options) {
+        this.fatal = options.fatal;
+        // Shift_JIS's decoder has an associated Shift_JIS lead (initially
+        // 0x00).
+        /** @type {number} */ this.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.
+     */
+    ShiftJISDecoder.prototype.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 === terminology_1.end_of_stream && this.Shift_JIS_lead !== 0x00) {
+            this.Shift_JIS_lead = 0x00;
+            return encodings_1.decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and Shift_JIS lead is 0x00,
+        // return finished.
+        if (bite === terminology_1.end_of_stream && this.Shift_JIS_lead === 0x00)
+            return finished_1.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 (this.Shift_JIS_lead !== 0x00) {
+            var lead = this.Shift_JIS_lead;
+            var pointer = null;
+            this.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 (utilities_1.inRange(bite, 0x40, 0x7E) || utilities_1.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 (utilities_1.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 :
+                indexes_1.indexCodePointFor(pointer, indexes_1.index('jis0208'));
+            // 6. If code point is null and byte is an ASCII byte, prepend
+            // byte to stream.
+            if (code_point === null && terminology_1.isASCIIByte(bite))
+                stream.prepend(bite);
+            // 7. If code point is null, return error.
+            if (code_point === null)
+                return encodings_1.decoderError(this.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 (terminology_1.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 (utilities_1.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 (utilities_1.inRange(bite, 0x81, 0x9F) || utilities_1.inRange(bite, 0xE0, 0xFC)) {
+            this.Shift_JIS_lead = bite;
+            return null;
+        }
+        // 7. Return error.
+        return encodings_1.decoderError(this.fatal);
+    };
+    return ShiftJISDecoder;
+}());
+exports.ShiftJISDecoder = ShiftJISDecoder;
+//# sourceMappingURL=ShiftJISDecoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/ShiftJISDecoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/ShiftJISEncoder.d.ts

@@ -0,0 +1,18 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class ShiftJISEncoder {
+    readonly fatal: boolean;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/ShiftJISEncoder.js

@@ -0,0 +1,65 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+var ShiftJISEncoder = /** @class */ (function () {
+    function ShiftJISEncoder(options) {
+        this.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.
+     */
+    ShiftJISEncoder.prototype.handler = function (stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If code point is an ASCII code point or U+0080, return a
+        // byte whose value is code point.
+        if (terminology_1.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 (utilities_1.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 = indexes_1.indexShiftJISPointerFor(code_point);
+        // 8. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encodings_1.encoderError(code_point);
+        // 9. Let lead be Math.floor(pointer / 188).
+        var lead = Math.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];
+    };
+    return ShiftJISEncoder;
+}());
+exports.ShiftJISEncoder = ShiftJISEncoder;
+//# sourceMappingURL=ShiftJISEncoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/ShiftJISEncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/index.d.ts

@@ -0,0 +1,2 @@
+export * from './ShiftJISDecoder';
+export * from './ShiftJISEncoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./ShiftJISDecoder"));
+__export(require("./ShiftJISEncoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/shift-jis/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/shift-jis/index.ts"],"names":[],"mappings":";;;;;AAAA,uCAAkC;AAClC,uCAAkC"}

backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/SingleByteDecoder.d.ts

@@ -0,0 +1,22 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {!Array.<number>} index The encoding index.
+ * @param {{fatal: boolean}} options
+ */
+export declare class SingleByteDecoder {
+    private readonly index;
+    readonly fatal: boolean;
+    constructor(index: Array<number>, options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/SingleByteDecoder.js

@@ -0,0 +1,44 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var terminology_1 = require("../../encoding/terminology");
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {!Array.<number>} index The encoding index.
+ * @param {{fatal: boolean}} options
+ */
+var SingleByteDecoder = /** @class */ (function () {
+    function SingleByteDecoder(index, options) {
+        this.index = index;
+        this.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.
+     */
+    SingleByteDecoder.prototype.handler = function (stream, bite) {
+        // 1. If byte is end-of-stream, return finished.
+        if (bite === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If byte is an ASCII byte, return a code point whose value
+        // is byte.
+        if (terminology_1.isASCIIByte(bite))
+            return bite;
+        // 3. Let code point be the index code point for byte − 0x80 in
+        // index single-byte.
+        var code_point = this.index[bite - 0x80];
+        // 4. If code point is null, return error.
+        if (!code_point)
+            return encodings_1.decoderError(this.fatal);
+        // 5. Return a code point whose value is code point.
+        return code_point;
+    };
+    return SingleByteDecoder;
+}());
+exports.SingleByteDecoder = SingleByteDecoder;
+//# sourceMappingURL=SingleByteDecoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/SingleByteDecoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"SingleByteDecoder.js","sourceRoot":"","sources":["../../../../src/coders/single-byte/SingleByteDecoder.ts"],"names":[],"mappings":";;AACA,sDAAwD;AACxD,oDAAmD;AACnD,0DAAwE;AAExE;;;;;GAKG;AACH;IAIE,2BAA6B,KAAoB,EAAE,OAA4B;QAAlD,UAAK,GAAL,KAAK,CAAe;QAC/C,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;;;OAMG;IACH,mCAAO,GAAP,UAAQ,MAAc,EAAE,IAAY;QAClC,gDAAgD;QAChD,IAAI,IAAI,KAAK,2BAAa;YACxB,OAAO,mBAAQ,CAAC;QAElB,+DAA+D;QAC/D,WAAW;QACX,IAAI,yBAAW,CAAC,IAAI,CAAC;YACnB,OAAO,IAAI,CAAC;QAEd,+DAA+D;QAC/D,qBAAqB;QACrB,IAAM,UAAU,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,GAAG,IAAI,CAAC,CAAC;QAE3C,0CAA0C;QAC1C,IAAI,CAAC,UAAU;YACb,OAAO,wBAAY,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAElC,oDAAoD;QACpD,OAAO,UAAU,CAAC;IACpB,CAAC;IACH,wBAAC;AAAD,CAAC,AApCD,IAoCC;AApCY,8CAAiB"}

backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/SingleByteEncoder.d.ts

@@ -0,0 +1,20 @@
+import { Stream } from "../../common";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {!Array.<?number>} index The encoding index.
+ * @param {{fatal: boolean}} options
+ */
+export declare class SingleByteEncoder {
+    private index;
+    readonly fatal: boolean;
+    constructor(index: (number | null)[], options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/SingleByteEncoder.js

@@ -0,0 +1,43 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var indexes_1 = require("../../encoding/indexes");
+var terminology_1 = require("../../encoding/terminology");
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {!Array.<?number>} index The encoding index.
+ * @param {{fatal: boolean}} options
+ */
+var SingleByteEncoder = /** @class */ (function () {
+    function SingleByteEncoder(index, options) {
+        this.index = index;
+        this.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.
+     */
+    SingleByteEncoder.prototype.handler = function (stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (terminology_1.isASCIICodePoint(code_point))
+            return code_point;
+        // 3. Let pointer be the index pointer for code point in index
+        // single-byte.
+        var pointer = indexes_1.indexPointerFor(code_point, this.index);
+        // 4. If pointer is null, return error with code point.
+        if (pointer === null)
+            encodings_1.encoderError(code_point);
+        // 5. Return a byte whose value is pointer + 0x80.
+        return pointer + 0x80;
+    };
+    return SingleByteEncoder;
+}());
+exports.SingleByteEncoder = SingleByteEncoder;
+//# sourceMappingURL=SingleByteEncoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/SingleByteEncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/index.d.ts

@@ -0,0 +1,2 @@
+export * from './SingleByteDecoder';
+export * from './SingleByteEncoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./SingleByteDecoder"));
+__export(require("./SingleByteEncoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/single-byte/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/single-byte/index.ts"],"names":[],"mappings":";;;;;AAAA,yCAAoC;AACpC,yCAAoC"}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/UTF16Decoder.d.ts

@@ -0,0 +1,24 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {boolean} utf16_be True if big-endian, false if little-endian.
+ * @param {{fatal: boolean}} options
+ */
+export declare class UTF16Decoder {
+    private utf16_be;
+    readonly fatal: boolean;
+    utf16_lead_byte: any;
+    utf16_lead_surrogate: any;
+    constructor(utf16_be: boolean, options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/UTF16Decoder.js

@@ -0,0 +1,97 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+var converCodeUnitToBytes_1 = require("./converCodeUnitToBytes");
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {boolean} utf16_be True if big-endian, false if little-endian.
+ * @param {{fatal: boolean}} options
+ */
+var UTF16Decoder = /** @class */ (function () {
+    function UTF16Decoder(utf16_be, options) {
+        this.utf16_be = utf16_be;
+        this.fatal = options.fatal;
+        /** @type {?number} */ this.utf16_lead_byte = null;
+        /** @type {?number} */ this.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.
+     */
+    UTF16Decoder.prototype.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 === terminology_1.end_of_stream && (this.utf16_lead_byte !== null ||
+            this.utf16_lead_surrogate !== null)) {
+            return encodings_1.decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and utf-16 lead byte and utf-16
+        // lead surrogate are null, return finished.
+        if (bite === terminology_1.end_of_stream && this.utf16_lead_byte === null &&
+            this.utf16_lead_surrogate === null) {
+            return finished_1.finished;
+        }
+        // 3. If utf-16 lead byte is null, set utf-16 lead byte to byte
+        // and return continue.
+        if (this.utf16_lead_byte === null) {
+            this.utf16_lead_byte = bite;
+            return null;
+        }
+        // 4. Let code unit be the result of:
+        var code_unit;
+        if (this.utf16_be) {
+            // utf-16be decoder flag is set
+            //   (utf-16 lead byte << 8) + byte.
+            code_unit = (this.utf16_lead_byte << 8) + bite;
+        }
+        else {
+            // utf-16be decoder flag is unset
+            //   (byte << 8) + utf-16 lead byte.
+            code_unit = (bite << 8) + this.utf16_lead_byte;
+        }
+        // Then set utf-16 lead byte to null.
+        this.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 (this.utf16_lead_surrogate !== null) {
+            var lead_surrogate = this.utf16_lead_surrogate;
+            this.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 (utilities_1.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(converCodeUnitToBytes_1.convertCodeUnitToBytes(code_unit, this.utf16_be));
+            return encodings_1.decoderError(this.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 (utilities_1.inRange(code_unit, 0xD800, 0xDBFF)) {
+            this.utf16_lead_surrogate = code_unit;
+            return null;
+        }
+        // 7. If code unit is in the range U+DC00 to U+DFFF, inclusive,
+        // return error.
+        if (utilities_1.inRange(code_unit, 0xDC00, 0xDFFF))
+            return encodings_1.decoderError(this.fatal);
+        // 8. Return code point code unit.
+        return code_unit;
+    };
+    return UTF16Decoder;
+}());
+exports.UTF16Decoder = UTF16Decoder;
+//# sourceMappingURL=UTF16Decoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/UTF16Decoder.js.map

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backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/UTF16Encoder.d.ts

@@ -0,0 +1,20 @@
+import { Stream } from "../../common";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {boolean} utf16_be True if big-endian, false if little-endian.
+ * @param {{fatal: boolean}} options
+ */
+export declare class UTF16Encoder {
+    private utf16_be;
+    readonly fatal: boolean;
+    constructor(utf16_be: boolean, options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/UTF16Encoder.js

@@ -0,0 +1,44 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var finished_1 = require("../../encoding/finished");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+var converCodeUnitToBytes_1 = require("./converCodeUnitToBytes");
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {boolean} utf16_be True if big-endian, false if little-endian.
+ * @param {{fatal: boolean}} options
+ */
+var UTF16Encoder = /** @class */ (function () {
+    function UTF16Encoder(utf16_be, options) {
+        this.utf16_be = utf16_be;
+        this.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.
+     */
+    UTF16Encoder.prototype.handler = function (stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.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 (utilities_1.inRange(code_point, 0x0000, 0xFFFF))
+            return converCodeUnitToBytes_1.convertCodeUnitToBytes(code_point, this.utf16_be);
+        // 3. Let lead be ((code point − 0x10000) >> 10) + 0xD800,
+        // converted to bytes using utf-16be encoder flag.
+        var lead = converCodeUnitToBytes_1.convertCodeUnitToBytes(((code_point - 0x10000) >> 10) + 0xD800, this.utf16_be);
+        // 4. Let trail be ((code point − 0x10000) & 0x3FF) + 0xDC00,
+        // converted to bytes using utf-16be encoder flag.
+        var trail = converCodeUnitToBytes_1.convertCodeUnitToBytes(((code_point - 0x10000) & 0x3FF) + 0xDC00, this.utf16_be);
+        // 5. Return a byte sequence of lead followed by trail.
+        return lead.concat(trail);
+    };
+    return UTF16Encoder;
+}());
+exports.UTF16Encoder = UTF16Encoder;
+//# sourceMappingURL=UTF16Encoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/UTF16Encoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"UTF16Encoder.js","sourceRoot":"","sources":["../../../../src/coders/utf-16/UTF16Encoder.ts"],"names":[],"mappings":";;AACA,oDAAmD;AACnD,0DAA2D;AAC3D,sDAAmD;AACnD,iEAAiE;AAEjE;;;;;GAKG;AACH;IAIE,sBAAoB,QAAiB,EAAE,OAA4B;QAA/C,aAAQ,GAAR,QAAQ,CAAS;QACnC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;OAIG;IACH,8BAAO,GAAP,UAAQ,MAAc,EAAE,UAAkB;QACxC,sDAAsD;QACtD,IAAI,UAAU,KAAK,2BAAa;YAC9B,OAAO,mBAAQ,CAAC;QAElB,gEAAgE;QAChE,4DAA4D;QAC5D,qCAAqC;QACrC,IAAI,mBAAO,CAAC,UAAU,EAAE,MAAM,EAAE,MAAM,CAAC;YACrC,OAAO,8CAAsB,CAAC,UAAU,EAAE,IAAI,CAAC,QAAQ,CAAC,CAAC;QAE3D,0DAA0D;QAC1D,kDAAkD;QAClD,IAAM,IAAI,GAAG,8CAAsB,CACjC,CAAC,CAAC,UAAU,GAAG,OAAO,CAAC,IAAI,EAAE,CAAC,GAAG,MAAM,EAAE,IAAI,CAAC,QAAQ,CAAC,CAAC;QAE1D,6DAA6D;QAC7D,kDAAkD;QAClD,IAAM,KAAK,GAAG,8CAAsB,CAClC,CAAC,CAAC,UAAU,GAAG,OAAO,CAAC,GAAG,KAAK,CAAC,GAAG,MAAM,EAAE,IAAI,CAAC,QAAQ,CAAC,CAAC;QAE5D,uDAAuD;QACvD,OAAO,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,CAAC;IAC5B,CAAC;IACH,mBAAC;AAAD,CAAC,AArCD,IAqCC;AArCY,oCAAY"}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/converCodeUnitToBytes.d.ts

@@ -0,0 +1,6 @@
+/**
+ * @param {number} code_unit
+ * @param {boolean} utf16be
+ * @return {!Array.<number>} bytes
+ */
+export declare function convertCodeUnitToBytes(code_unit: number, utf16be: boolean): Array<number>;

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/converCodeUnitToBytes.js

@@ -0,0 +1,21 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+/**
+ * @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];
+}
+exports.convertCodeUnitToBytes = convertCodeUnitToBytes;
+//# sourceMappingURL=converCodeUnitToBytes.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/converCodeUnitToBytes.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"converCodeUnitToBytes.js","sourceRoot":"","sources":["../../../../src/coders/utf-16/converCodeUnitToBytes.ts"],"names":[],"mappings":";;AAAA;;;;GAIG;AACH,SAAgB,sBAAsB,CAAC,SAAiB,EAAE,OAAgB;IACxE,kCAAkC;IAClC,IAAM,KAAK,GAAG,SAAS,IAAI,CAAC,CAAC;IAE7B,sCAAsC;IACtC,IAAM,KAAK,GAAG,SAAS,GAAG,MAAM,CAAC;IAEjC,qCAAqC;IACrC,2CAA2C;IAC3C,IAAI,OAAO;QACT,OAAO,CAAC,KAAK,EAAE,KAAK,CAAC,CAAC;IACxB,6CAA6C;IAC7C,OAAO,CAAC,KAAK,EAAE,KAAK,CAAC,CAAC;AACxB,CAAC;AAbD,wDAaC"}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/index.d.ts

@@ -0,0 +1,2 @@
+export * from './UTF16Decoder';
+export * from './UTF16Encoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./UTF16Decoder"));
+__export(require("./UTF16Encoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-16/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/utf-16/index.ts"],"names":[],"mappings":";;;;;AAAA,oCAA+B;AAC/B,oCAA+B"}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/UTF8Decoder.d.ts

@@ -0,0 +1,25 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class UTF8Decoder {
+    readonly fatal: boolean;
+    utf8_code_point: number;
+    utf8_bytes_seen: number;
+    utf8_bytes_needed: number;
+    utf8_lower_boundary: number;
+    utf8_upper_boundary: number;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/UTF8Decoder.js

@@ -0,0 +1,128 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+var UTF8Decoder = /** @class */ (function () {
+    function UTF8Decoder(options) {
+        this.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).
+        /** @type {number} */ this.utf8_code_point = 0,
+            /** @type {number} */ this.utf8_bytes_seen = 0,
+            /** @type {number} */ this.utf8_bytes_needed = 0,
+            /** @type {number} */ this.utf8_lower_boundary = 0x80,
+            /** @type {number} */ this.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.
+     */
+    UTF8Decoder.prototype.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 === terminology_1.end_of_stream && this.utf8_bytes_needed !== 0) {
+            this.utf8_bytes_needed = 0;
+            return encodings_1.decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream, return finished.
+        if (bite === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 3. If utf-8 bytes needed is 0, based on byte:
+        if (this.utf8_bytes_needed === 0) {
+            // 0x00 to 0x7F
+            if (utilities_1.inRange(bite, 0x00, 0x7F)) {
+                // Return a code point whose value is byte.
+                return bite;
+            }
+            // 0xC2 to 0xDF
+            else if (utilities_1.inRange(bite, 0xC2, 0xDF)) {
+                // 1. Set utf-8 bytes needed to 1.
+                this.utf8_bytes_needed = 1;
+                // 2. Set UTF-8 code point to byte & 0x1F.
+                this.utf8_code_point = bite & 0x1F;
+            }
+            // 0xE0 to 0xEF
+            else if (utilities_1.inRange(bite, 0xE0, 0xEF)) {
+                // 1. If byte is 0xE0, set utf-8 lower boundary to 0xA0.
+                if (bite === 0xE0)
+                    this.utf8_lower_boundary = 0xA0;
+                // 2. If byte is 0xED, set utf-8 upper boundary to 0x9F.
+                if (bite === 0xED)
+                    this.utf8_upper_boundary = 0x9F;
+                // 3. Set utf-8 bytes needed to 2.
+                this.utf8_bytes_needed = 2;
+                // 4. Set UTF-8 code point to byte & 0xF.
+                this.utf8_code_point = bite & 0xF;
+            }
+            // 0xF0 to 0xF4
+            else if (utilities_1.inRange(bite, 0xF0, 0xF4)) {
+                // 1. If byte is 0xF0, set utf-8 lower boundary to 0x90.
+                if (bite === 0xF0)
+                    this.utf8_lower_boundary = 0x90;
+                // 2. If byte is 0xF4, set utf-8 upper boundary to 0x8F.
+                if (bite === 0xF4)
+                    this.utf8_upper_boundary = 0x8F;
+                // 3. Set utf-8 bytes needed to 3.
+                this.utf8_bytes_needed = 3;
+                // 4. Set UTF-8 code point to byte & 0x7.
+                this.utf8_code_point = bite & 0x7;
+            }
+            // Otherwise
+            else {
+                // Return error.
+                return encodings_1.decoderError(this.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 (!utilities_1.inRange(bite, this.utf8_lower_boundary, this.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.
+            this.utf8_code_point = this.utf8_bytes_needed = this.utf8_bytes_seen = 0;
+            this.utf8_lower_boundary = 0x80;
+            this.utf8_upper_boundary = 0xBF;
+            // 2. Prepend byte to stream.
+            stream.prepend(bite);
+            // 3. Return error.
+            return encodings_1.decoderError(this.fatal);
+        }
+        // 5. Set utf-8 lower boundary to 0x80 and utf-8 upper boundary
+        // to 0xBF.
+        this.utf8_lower_boundary = 0x80;
+        this.utf8_upper_boundary = 0xBF;
+        // 6. Set UTF-8 code point to (UTF-8 code point << 6) | (byte &
+        // 0x3F)
+        this.utf8_code_point = (this.utf8_code_point << 6) | (bite & 0x3F);
+        // 7. Increase utf-8 bytes seen by one.
+        this.utf8_bytes_seen += 1;
+        // 8. If utf-8 bytes seen is not equal to utf-8 bytes needed,
+        // continue.
+        if (this.utf8_bytes_seen !== this.utf8_bytes_needed)
+            return null;
+        // 9. Let code point be utf-8 code point.
+        var code_point = this.utf8_code_point;
+        // 10. Set utf-8 code point, utf-8 bytes needed, and utf-8 bytes
+        // seen to 0.
+        this.utf8_code_point = this.utf8_bytes_needed = this.utf8_bytes_seen = 0;
+        // 11. Return a code point whose value is code point.
+        return code_point;
+    };
+    return UTF8Decoder;
+}());
+exports.UTF8Decoder = UTF8Decoder;
+//# sourceMappingURL=UTF8Decoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/UTF8Decoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/UTF8Encoder.d.ts

@@ -0,0 +1,18 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class UTF8Encoder {
+    readonly fatal: boolean;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/UTF8Encoder.js

@@ -0,0 +1,66 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var finished_1 = require("../../encoding/finished");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+var UTF8Encoder = /** @class */ (function () {
+    function UTF8Encoder(options) {
+        this.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.
+     */
+    UTF8Encoder.prototype.handler = function (stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (terminology_1.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 (utilities_1.inRange(code_point, 0x0080, 0x07FF)) {
+            // 1 and 0xC0
+            count = 1;
+            offset = 0xC0;
+        }
+        // U+0800 to U+FFFF, inclusive:
+        else if (utilities_1.inRange(code_point, 0x0800, 0xFFFF)) {
+            // 2 and 0xE0
+            count = 2;
+            offset = 0xE0;
+        }
+        // U+10000 to U+10FFFF, inclusive:
+        else if (utilities_1.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;
+    };
+    return UTF8Encoder;
+}());
+exports.UTF8Encoder = UTF8Encoder;
+//# sourceMappingURL=UTF8Encoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/UTF8Encoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"UTF8Encoder.js","sourceRoot":"","sources":["../../../../src/coders/utf-8/UTF8Encoder.ts"],"names":[],"mappings":";;AACA,oDAAmD;AACnD,0DAA6E;AAC7E,sDAAmD;AAEnD;;;;GAIG;AACH;IAIE,qBAAY,OAA4B;QACtC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;OAIG;IACH,6BAAO,GAAP,UAAQ,MAAc,EAAE,UAAkB;QACxC,sDAAsD;QACtD,IAAI,UAAU,KAAK,2BAAa;YAC9B,OAAO,mBAAQ,CAAC;QAElB,+DAA+D;QAC/D,uBAAuB;QACvB,IAAI,8BAAgB,CAAC,UAAU,CAAC;YAC9B,OAAO,UAAU,CAAC;QAEpB,+DAA+D;QAC/D,IAAI,KAAa,EAAE,MAAc,CAAC;QAClC,+BAA+B;QAC/B,IAAI,mBAAO,CAAC,UAAU,EAAE,MAAM,EAAE,MAAM,CAAC,EAAE;YACvC,aAAa;YACb,KAAK,GAAG,CAAC,CAAC;YACV,MAAM,GAAG,IAAI,CAAC;SACf;QACD,+BAA+B;aAC1B,IAAI,mBAAO,CAAC,UAAU,EAAE,MAAM,EAAE,MAAM,CAAC,EAAE;YAC5C,aAAa;YACb,KAAK,GAAG,CAAC,CAAC;YACV,MAAM,GAAG,IAAI,CAAC;SACf;QACD,kCAAkC;aAC7B,IAAI,mBAAO,CAAC,UAAU,EAAE,OAAO,EAAE,QAAQ,CAAC,EAAE;YAC/C,aAAa;YACb,KAAK,GAAG,CAAC,CAAC;YACV,MAAM,GAAG,IAAI,CAAC;SACf;QAED,4DAA4D;QAC5D,kCAAkC;QAClC,IAAM,KAAK,GAAG,CAAC,CAAC,UAAU,IAAI,CAAC,CAAC,GAAG,KAAK,CAAC,CAAC,GAAG,MAAM,CAAC,CAAC;QAErD,uDAAuD;QACvD,OAAO,KAAK,GAAG,CAAC,EAAE;YAEhB,kDAAkD;YAClD,IAAM,IAAI,GAAG,UAAU,IAAI,CAAC,CAAC,GAAG,CAAC,KAAK,GAAG,CAAC,CAAC,CAAC,CAAC;YAE7C,2CAA2C;YAC3C,KAAK,CAAC,IAAI,CAAC,IAAI,GAAG,CAAC,IAAI,GAAG,IAAI,CAAC,CAAC,CAAC;YAEjC,4BAA4B;YAC5B,KAAK,IAAI,CAAC,CAAC;SACZ;QAED,mCAAmC;QACnC,OAAO,KAAK,CAAC;IACf,CAAC;IACH,kBAAC;AAAD,CAAC,AAhED,IAgEC;AAhEY,kCAAW"}

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/index.d.ts

@@ -0,0 +1,2 @@
+export * from './UTF8Decoder';
+export * from './UTF8Encoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./UTF8Decoder"));
+__export(require("./UTF8Encoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/utf-8/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/utf-8/index.ts"],"names":[],"mappings":";;;;;AAAA,mCAA8B;AAC9B,mCAA8B"}

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/XUserDefinedDecoder.d.ts

@@ -0,0 +1,20 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class XUserDefinedDecoder {
+    readonly fatal: boolean;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @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.
+     */
+    handler(stream: Stream, bite: number): (number | Array<number>) | null;
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/XUserDefinedDecoder.js

@@ -0,0 +1,35 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var finished_1 = require("../../encoding/finished");
+var terminology_1 = require("../../encoding/terminology");
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+var XUserDefinedDecoder = /** @class */ (function () {
+    function XUserDefinedDecoder(options) {
+        this.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.
+     */
+    XUserDefinedDecoder.prototype.handler = function (stream, bite) {
+        // 1. If byte is end-of-stream, return finished.
+        if (bite === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If byte is an ASCII byte, return a code point whose value
+        // is byte.
+        if (terminology_1.isASCIIByte(bite))
+            return bite;
+        // 3. Return a code point whose value is 0xF780 + byte − 0x80.
+        return 0xF780 + bite - 0x80;
+    };
+    return XUserDefinedDecoder;
+}());
+exports.XUserDefinedDecoder = XUserDefinedDecoder;
+//# sourceMappingURL=XUserDefinedDecoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/XUserDefinedDecoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"XUserDefinedDecoder.js","sourceRoot":"","sources":["../../../../src/coders/x-user-defined/XUserDefinedDecoder.ts"],"names":[],"mappings":";;AACA,oDAAmD;AACnD,0DAAwE;AAExE;;;;GAIG;AACH;IAIE,6BAAY,OAA4B;QACtC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;;;OAMG;IACH,qCAAO,GAAP,UAAQ,MAAc,EAAE,IAAY;QAClC,gDAAgD;QAChD,IAAI,IAAI,KAAK,2BAAa;YACxB,OAAO,mBAAQ,CAAC;QAElB,+DAA+D;QAC/D,WAAW;QACX,IAAI,yBAAW,CAAC,IAAI,CAAC;YACnB,OAAO,IAAI,CAAC;QAEd,8DAA8D;QAC9D,OAAO,MAAM,GAAG,IAAI,GAAG,IAAI,CAAC;IAC9B,CAAC;IACH,0BAAC;AAAD,CAAC,AA5BD,IA4BC;AA5BY,kDAAmB"}

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/XUserDefinedEncoder.d.ts

@@ -0,0 +1,18 @@
+import { Stream } from "../../common/Stream";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export declare class XUserDefinedEncoder {
+    readonly fatal: boolean;
+    constructor(options: {
+        fatal: boolean;
+    });
+    /**
+     * @param {Stream} stream Input stream.
+     * @param {number} code_point Next code point read from the stream.
+     * @return {(number|!Array.<number>)} Byte(s) to emit.
+     */
+    handler(stream: Stream, code_point: number): (number | Array<number>);
+}

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/XUserDefinedEncoder.js

@@ -0,0 +1,39 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+var encodings_1 = require("../../encoding/encodings");
+var finished_1 = require("../../encoding/finished");
+var terminology_1 = require("../../encoding/terminology");
+var utilities_1 = require("../../encoding/utilities");
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+var XUserDefinedEncoder = /** @class */ (function () {
+    function XUserDefinedEncoder(options) {
+        this.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.
+     */
+    XUserDefinedEncoder.prototype.handler = function (stream, code_point) {
+        // 1.If code point is end-of-stream, return finished.
+        if (code_point === terminology_1.end_of_stream)
+            return finished_1.finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (terminology_1.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 (utilities_1.inRange(code_point, 0xF780, 0xF7FF))
+            return code_point - 0xF780 + 0x80;
+        // 4. Return error with code point.
+        return encodings_1.encoderError(code_point);
+    };
+    return XUserDefinedEncoder;
+}());
+exports.XUserDefinedEncoder = XUserDefinedEncoder;
+//# sourceMappingURL=XUserDefinedEncoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/XUserDefinedEncoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"XUserDefinedEncoder.js","sourceRoot":"","sources":["../../../../src/coders/x-user-defined/XUserDefinedEncoder.ts"],"names":[],"mappings":";;AACA,sDAAwD;AACxD,oDAAmD;AACnD,0DAA6E;AAC7E,sDAAmD;AAEnD;;;;GAIG;AACH;IAIE,6BAAY,OAA4B;QACtC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;OAIG;IACH,qCAAO,GAAP,UAAQ,MAAc,EAAE,UAAkB;QACxC,qDAAqD;QACrD,IAAI,UAAU,KAAK,2BAAa;YAC9B,OAAO,mBAAQ,CAAC;QAElB,+DAA+D;QAC/D,uBAAuB;QACvB,IAAI,8BAAgB,CAAC,UAAU,CAAC;YAC9B,OAAO,UAAU,CAAC;QAEpB,gEAAgE;QAChE,2DAA2D;QAC3D,IAAI,mBAAO,CAAC,UAAU,EAAE,MAAM,EAAE,MAAM,CAAC;YACrC,OAAO,UAAU,GAAG,MAAM,GAAG,IAAI,CAAC;QAEpC,mCAAmC;QACnC,OAAO,wBAAY,CAAC,UAAU,CAAC,CAAC;IAClC,CAAC;IACH,0BAAC;AAAD,CAAC,AA/BD,IA+BC;AA/BY,kDAAmB"}

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/index.d.ts

@@ -0,0 +1,2 @@
+export * from './XUserDefinedDecoder';
+export * from './XUserDefinedEncoder';

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/index.js

@@ -0,0 +1,8 @@
+"use strict";
+function __export(m) {
+    for (var p in m) if (!exports.hasOwnProperty(p)) exports[p] = m[p];
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+__export(require("./XUserDefinedDecoder"));
+__export(require("./XUserDefinedEncoder"));
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/cjs/coders/x-user-defined/index.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../../../src/coders/x-user-defined/index.ts"],"names":[],"mappings":";;;;;AAAA,2CAAsC;AACtC,2CAAsC"}

backend/node_modules/@zxing/text-encoding/cjs/common/Decoder.d.ts

@@ -0,0 +1,12 @@
+import { Stream } from "./Stream";
+/** @interface */
+export interface Decoder {
+    /**
+     * @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(stream: Stream, bite: number): number | number[];
+}

backend/node_modules/@zxing/text-encoding/cjs/common/Decoder.js

@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=Decoder.js.map

backend/node_modules/@zxing/text-encoding/cjs/common/Decoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"Decoder.js","sourceRoot":"","sources":["../../../src/common/Decoder.ts"],"names":[],"mappings":""}

backend/node_modules/@zxing/text-encoding/cjs/common/Encoder.d.ts

@@ -0,0 +1,10 @@
+import { Stream } from "./Stream";
+/** @interface */
+export interface Encoder {
+    /**
+     * @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(stream: Stream, code_point: number): number | number[];
+}

backend/node_modules/@zxing/text-encoding/cjs/common/Encoder.js

@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=Encoder.js.map