Initial commit - Dutchie dispensary scraper

backend/node_modules/@zxing/text-encoding/es2015/coders/big5/Big5Decoder.d.ts

@@ -0,0 +1,21 @@
+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/es2015/coders/big5/Big5Decoder.js

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+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexCodePointFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIIByte } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+  * @constructor
+  * @implements {Decoder}
+  * @param {{fatal: boolean}} options
+  */
+export class Big5Decoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream and Big5 lead is not 0x00, set
+        // Big5 lead to 0x00 and return error.
+        if (bite === end_of_stream && this.Big5_lead !== 0x00) {
+            this.Big5_lead = 0x00;
+            return decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and Big5 lead is 0x00, return
+        // finished.
+        if (bite === end_of_stream && this.Big5_lead === 0x00)
+            return finished;
+        // 3. If Big5 lead is not 0x00, let lead be Big5 lead, let
+        // pointer be null, set Big5 lead to 0x00, and then run these
+        // substeps:
+        if (this.Big5_lead !== 0x00) {
+            const lead = this.Big5_lead;
+            let pointer = null;
+            this.Big5_lead = 0x00;
+            // 1. Let offset be 0x40 if byte is less than 0x7F and 0x62
+            // otherwise.
+            const offset = bite < 0x7F ? 0x40 : 0x62;
+            // 2. If byte is in the range 0x40 to 0x7E, inclusive, or 0xA1
+            // to 0xFE, inclusive, set pointer to (lead − 0x81) × 157 +
+            // (byte − offset).
+            if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0xA1, 0xFE))
+                pointer = (lead - 0x81) * 157 + (bite - offset);
+            // 3. If there is a row in the table below whose first column
+            // is pointer, return the two code points listed in its second
+            // column
+            // Pointer | Code points
+            // --------+--------------
+            // 1133    | U+00CA U+0304
+            // 1135    | U+00CA U+030C
+            // 1164    | U+00EA U+0304
+            // 1166    | U+00EA U+030C
+            switch (pointer) {
+                case 1133: return [0x00CA, 0x0304];
+                case 1135: return [0x00CA, 0x030C];
+                case 1164: return [0x00EA, 0x0304];
+                case 1166: return [0x00EA, 0x030C];
+            }
+            // 4. Let code point be null if pointer is null and the index
+            // code point for pointer in index Big5 otherwise.
+            const code_point = (pointer === null) ? null :
+                indexCodePointFor(pointer, index('big5'));
+            // 5. If code point is null and byte is an ASCII byte, prepend
+            // byte to stream.
+            if (code_point === null && isASCIIByte(bite))
+                stream.prepend(bite);
+            // 6. If code point is null, return error.
+            if (code_point === null)
+                return decoderError(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 (isASCIIByte(bite))
+            return bite;
+        // 5. If byte is in the range 0x81 to 0xFE, inclusive, set Big5
+        // lead to byte and return continue.
+        if (inRange(bite, 0x81, 0xFE)) {
+            this.Big5_lead = bite;
+            return null;
+        }
+        // 6. Return error.
+        return decoderError(this.fatal);
+    }
+}
+//# sourceMappingURL=Big5Decoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/big5/Big5Decoder.js.map

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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/big5/Big5Encoder.js

@@ -0,0 +1,46 @@
+import { encoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { indexBig5PointerFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
+/**
+   * @constructor
+   * @implements {Encoder}
+   * @param {{fatal: boolean}} options
+   */
+export class Big5Encoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (isASCIICodePoint(code_point))
+            return code_point;
+        // 3. Let pointer be the index Big5 pointer for code point.
+        const pointer = indexBig5PointerFor(code_point);
+        // 4. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encoderError(code_point);
+        // 5. Let lead be Math.floor(pointer / 157) + 0x81.
+        const lead = Math.floor(pointer / 157) + 0x81;
+        // 6. If lead is less than 0xA1, return error with code point.
+        if (lead < 0xA1)
+            return encoderError(code_point);
+        // 7. Let trail be pointer % 157.
+        const trail = pointer % 157;
+        // 8. Let offset be 0x40 if trail is less than 0x3F and 0x62
+        // otherwise.
+        const offset = trail < 0x3F ? 0x40 : 0x62;
+        // Return two bytes whose values are lead and trail + offset.
+        return [lead, trail + offset];
+    }
+}
+//# sourceMappingURL=Big5Encoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/big5/Big5Encoder.js.map

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backend/node_modules/@zxing/text-encoding/es2015/coders/big5/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/big5/index.js

@@ -0,0 +1,3 @@
+export * from './Big5Decoder';
+export * from './Big5Encoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/big5/index.js.map

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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/euc-jp/EUCJPDecoder.js

@@ -0,0 +1,92 @@
+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexCodePointFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIIByte } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export class EUCJPDecoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream and euc-jp lead is not 0x00, set
+        // euc-jp lead to 0x00, and return error.
+        if (bite === end_of_stream && this.eucjp_lead !== 0x00) {
+            this.eucjp_lead = 0x00;
+            return decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and euc-jp lead is 0x00, return
+        // finished.
+        if (bite === end_of_stream && this.eucjp_lead === 0x00)
+            return finished;
+        // 3. If euc-jp lead is 0x8E and byte is in the range 0xA1 to
+        // 0xDF, inclusive, set euc-jp lead to 0x00 and return a code
+        // point whose value is 0xFF61 − 0xA1 + byte.
+        if (this.eucjp_lead === 0x8E && 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 && 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) {
+            const lead = this.eucjp_lead;
+            this.eucjp_lead = 0x00;
+            // 1. Let code point be null.
+            let code_point = null;
+            // 2. If lead and byte are both in the range 0xA1 to 0xFE,
+            // inclusive, set code point to the index code point for (lead
+            // − 0xA1) × 94 + byte − 0xA1 in index jis0208 if the euc-jp
+            // jis0212 flag is unset and in index jis0212 otherwise.
+            if (inRange(lead, 0xA1, 0xFE) && inRange(bite, 0xA1, 0xFE)) {
+                code_point = indexCodePointFor((lead - 0xA1) * 94 + (bite - 0xA1), index(!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 (!inRange(bite, 0xA1, 0xFE))
+                stream.prepend(bite);
+            // 5. If code point is null, return error.
+            if (code_point === null)
+                return 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 (isASCIIByte(bite))
+            return bite;
+        // 7. If byte is 0x8E, 0x8F, or in the range 0xA1 to 0xFE,
+        // inclusive, set euc-jp lead to byte and return continue.
+        if (bite === 0x8E || bite === 0x8F || inRange(bite, 0xA1, 0xFE)) {
+            this.eucjp_lead = bite;
+            return null;
+        }
+        // 8. Return error.
+        return decoderError(this.fatal);
+    }
+}
+//# sourceMappingURL=EUCJPDecoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/euc-jp/EUCJPDecoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/euc-jp/EUCJPEncoder.js

@@ -0,0 +1,56 @@
+import { encoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexPointerFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export class EUCJPEncoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (isASCIICodePoint(code_point))
+            return code_point;
+        // 3. If code point is U+00A5, return byte 0x5C.
+        if (code_point === 0x00A5)
+            return 0x5C;
+        // 4. If code point is U+203E, return byte 0x7E.
+        if (code_point === 0x203E)
+            return 0x7E;
+        // 5. If code point is in the range U+FF61 to U+FF9F, inclusive,
+        // return two bytes whose values are 0x8E and code point −
+        // 0xFF61 + 0xA1.
+        if (inRange(code_point, 0xFF61, 0xFF9F))
+            return [0x8E, code_point - 0xFF61 + 0xA1];
+        // 6. If code point is U+2212, set it to U+FF0D.
+        if (code_point === 0x2212)
+            code_point = 0xFF0D;
+        // 7. Let pointer be the index pointer for code point in index
+        // jis0208.
+        const pointer = indexPointerFor(code_point, index('jis0208'));
+        // 8. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encoderError(code_point);
+        // 9. Let lead be Math.floor(pointer / 94) + 0xA1.
+        const lead = Math.floor(pointer / 94) + 0xA1;
+        // 10. Let trail be pointer % 94 + 0xA1.
+        const trail = pointer % 94 + 0xA1;
+        // 11. Return two bytes whose values are lead and trail.
+        return [lead, trail];
+    }
+}
+//# sourceMappingURL=EUCJPEncoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/euc-jp/EUCJPEncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/coders/euc-jp/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/euc-jp/index.js

@@ -0,0 +1,3 @@
+export * from './EUCJPDecoder';
+export * from './EUCJPEncoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/euc-jp/index.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/euc-kr/EUCKRDecoder.js

@@ -0,0 +1,74 @@
+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexCodePointFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIIByte } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export class EUCKRDecoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream and euc-kr lead is not 0x00, set
+        // euc-kr lead to 0x00 and return error.
+        if (bite === end_of_stream && this.euckr_lead !== 0) {
+            this.euckr_lead = 0x00;
+            return decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and euc-kr lead is 0x00, return
+        // finished.
+        if (bite === end_of_stream && this.euckr_lead === 0)
+            return finished;
+        // 3. If euc-kr lead is not 0x00, let lead be euc-kr lead, let
+        // pointer be null, set euc-kr lead to 0x00, and then run these
+        // substeps:
+        if (this.euckr_lead !== 0x00) {
+            const lead = this.euckr_lead;
+            let 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 (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.
+            const code_point = (pointer === null)
+                ? null : indexCodePointFor(pointer, index('euc-kr'));
+            // 3. If code point is null and byte is an ASCII byte, prepend
+            // byte to stream.
+            if (pointer === null && isASCIIByte(bite))
+                stream.prepend(bite);
+            // 4. If code point is null, return error.
+            if (code_point === null)
+                return decoderError(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 (isASCIIByte(bite))
+            return bite;
+        // 5. If byte is in the range 0x81 to 0xFE, inclusive, set
+        // euc-kr lead to byte and return continue.
+        if (inRange(bite, 0x81, 0xFE)) {
+            this.euckr_lead = bite;
+            return null;
+        }
+        // 6. Return error.
+        return decoderError(this.fatal);
+    }
+}
+//# sourceMappingURL=EUCKRDecoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/euc-kr/EUCKRDecoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/euc-kr/EUCKREncoder.js

@@ -0,0 +1,41 @@
+import { encoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexPointerFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export class EUCKREncoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (isASCIICodePoint(code_point))
+            return code_point;
+        // 3. Let pointer be the index pointer for code point in index
+        // euc-kr.
+        const pointer = indexPointerFor(code_point, index('euc-kr'));
+        // 4. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encoderError(code_point);
+        // 5. Let lead be Math.floor(pointer / 190) + 0x81.
+        const lead = Math.floor(pointer / 190) + 0x81;
+        // 6. Let trail be pointer % 190 + 0x41.
+        const trail = (pointer % 190) + 0x41;
+        // 7. Return two bytes whose values are lead and trail.
+        return [lead, trail];
+    }
+}
+//# sourceMappingURL=EUCKREncoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/euc-kr/EUCKREncoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"EUCKREncoder.js","sourceRoot":"","sources":["../../../../src/coders/euc-kr/EUCKREncoder.ts"],"names":[],"mappings":"AACA,OAAO,EAAE,YAAY,EAAE,MAAM,0BAA0B,CAAC;AACxD,OAAO,EAAE,QAAQ,EAAE,MAAM,yBAAyB,CAAC;AACnD,OAAO,EAAE,KAAK,EAAE,eAAe,EAAE,MAAM,wBAAwB,CAAC;AAChE,OAAO,EAAE,aAAa,EAAE,gBAAgB,EAAE,MAAM,4BAA4B,CAAC;AAE7E;;;;GAIG;AACH,MAAM,OAAO,YAAY;IAIvB,YAAY,OAA4B;QACtC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;OAIG;IACH,OAAO,CAAC,MAAc,EAAE,UAAkB;QACxC,sDAAsD;QACtD,IAAI,UAAU,KAAK,aAAa;YAC9B,OAAO,QAAQ,CAAC;QAElB,+DAA+D;QAC/D,uBAAuB;QACvB,IAAI,gBAAgB,CAAC,UAAU,CAAC;YAC9B,OAAO,UAAU,CAAC;QAEpB,8DAA8D;QAC9D,UAAU;QACV,MAAM,OAAO,GAAG,eAAe,CAAC,UAAU,EAAE,KAAK,CAAC,QAAQ,CAAa,CAAC,CAAC;QAEzE,uDAAuD;QACvD,IAAI,OAAO,KAAK,IAAI;YAClB,OAAO,YAAY,CAAC,UAAU,CAAC,CAAC;QAElC,mDAAmD;QACnD,MAAM,IAAI,GAAG,IAAI,CAAC,KAAK,CAAC,OAAO,GAAG,GAAG,CAAC,GAAG,IAAI,CAAC;QAE9C,wCAAwC;QACxC,MAAM,KAAK,GAAG,CAAC,OAAO,GAAG,GAAG,CAAC,GAAG,IAAI,CAAC;QAErC,uDAAuD;QACvD,OAAO,CAAC,IAAI,EAAE,KAAK,CAAC,CAAC;IACvB,CAAC;CACF"}

backend/node_modules/@zxing/text-encoding/es2015/coders/euc-kr/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/euc-kr/index.js

@@ -0,0 +1,3 @@
+export * from './EUCKRDecoder';
+export * from './EUCKREncoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/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,cAAc,gBAAgB,CAAC;AAC/B,cAAc,gBAAgB,CAAC"}

backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/gb18030/GB18030Decoder.js

@@ -0,0 +1,142 @@
+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexCodePointFor, indexGB18030RangesCodePointFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIIByte } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export class GB18030Decoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream and gb18030 first, gb18030
+        // second, and gb18030 third are 0x00, return finished.
+        if (bite === end_of_stream && this.gb18030_first === 0x00 &&
+            this.gb18030_second === 0x00 && this.gb18030_third === 0x00) {
+            return finished;
+        }
+        // 2. If byte is end-of-stream, and gb18030 first, gb18030
+        // second, or gb18030 third is not 0x00, set gb18030 first,
+        // gb18030 second, and gb18030 third to 0x00, and return error.
+        if (bite === end_of_stream &&
+            (this.gb18030_first !== 0x00 || this.gb18030_second !== 0x00 ||
+                this.gb18030_third !== 0x00)) {
+            this.gb18030_first = 0x00;
+            this.gb18030_second = 0x00;
+            this.gb18030_third = 0x00;
+            decoderError(this.fatal);
+        }
+        let 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 (inRange(bite, 0x30, 0x39)) {
+                code_point = 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.
+            const 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 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 (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 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 (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.
+            const lead = this.gb18030_first;
+            let pointer = null;
+            this.gb18030_first = 0x00;
+            // 3. Let offset be 0x40 if byte is less than 0x7F and 0x41
+            // otherwise.
+            const offset = bite < 0x7F ? 0x40 : 0x41;
+            // 4. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80
+            // to 0xFE, inclusive, set pointer to (lead − 0x81) × 190 +
+            // (byte − offset).
+            if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFE))
+                pointer = (lead - 0x81) * 190 + (bite - offset);
+            // 5. Let code point be null if pointer is null and the index
+            // code point for pointer in index gb18030 otherwise.
+            code_point = pointer === null ? null :
+                indexCodePointFor(pointer, index('gb18030'));
+            // 6. If code point is null and byte is an ASCII byte, prepend
+            // byte to stream.
+            if (code_point === null && isASCIIByte(bite))
+                stream.prepend(bite);
+            // 7. If code point is null, return error.
+            if (code_point === null)
+                return decoderError(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 (isASCIIByte(bite))
+            return bite;
+        // 7. If byte is 0x80, return code point U+20AC.
+        if (bite === 0x80)
+            return 0x20AC;
+        // 8. If byte is in the range 0x81 to 0xFE, inclusive, set
+        // gb18030 first to byte and return continue.
+        if (inRange(bite, 0x81, 0xFE)) {
+            this.gb18030_first = bite;
+            return null;
+        }
+        // 9. Return error.
+        return decoderError(this.fatal);
+    }
+}
+//# sourceMappingURL=GB18030Decoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/gb18030/GB18030Decoder.js.map

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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/gb18030/GB18030Encoder.js

@@ -0,0 +1,77 @@
+import { encoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexGB18030RangesPointerFor, indexPointerFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ * @param {boolean=} gbk_flag
+ */
+export class GB18030Encoder {
+    constructor(options, 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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (isASCIICodePoint(code_point))
+            return code_point;
+        // 3. If code point is U+E5E5, return error with code point.
+        if (code_point === 0xE5E5)
+            return encoderError(code_point);
+        // 4. If the gbk flag is set and code point is U+20AC, return
+        // byte 0x80.
+        if (this.gbk_flag && code_point === 0x20AC)
+            return 0x80;
+        // 5. Let pointer be the index pointer for code point in index
+        // gb18030.
+        let pointer = indexPointerFor(code_point, index('gb18030'));
+        // 6. If pointer is not null, run these substeps:
+        if (pointer !== null) {
+            // 1. Let lead be Math.floor(pointer / 190) + 0x81.
+            const lead = Math.floor(pointer / 190) + 0x81;
+            // 2. Let trail be pointer % 190.
+            const trail = pointer % 190;
+            // 3. Let offset be 0x40 if trail is less than 0x3F and 0x41 otherwise.
+            const 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 encoderError(code_point);
+        // 8. Set pointer to the index gb18030 ranges pointer for code
+        // point.
+        pointer = indexGB18030RangesPointerFor(code_point);
+        // 9. Let byte1 be Math.floor(pointer / 10 / 126 / 10).
+        const 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).
+        const 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).
+        const byte3 = Math.floor(pointer / 10);
+        // 14. Let byte4 be pointer − byte3 × 10.
+        const 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];
+    }
+}
+//# sourceMappingURL=GB18030Encoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/gb18030/GB18030Encoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/coders/gb18030/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/gb18030/index.js

@@ -0,0 +1,3 @@
+export * from './GB18030Decoder';
+export * from './GB18030Encoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/gb18030/index.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/iso-2022-jp/ISO2022JPDecoder.js

@@ -0,0 +1,268 @@
+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexCodePointFor } from "../../encoding/indexes";
+import { end_of_stream } from "../../encoding/terminology";
+import { inRange } from "../../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 = {}));
+export class ISO2022JPDecoder {
+    /**
+     * @constructor
+     * @implements {Decoder}
+     * @param {{fatal: boolean}} options
+     */
+    constructor(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.
+     */
+    handler(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 (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 === end_of_stream) {
+                    // Return finished.
+                    return finished;
+                }
+                // Otherwise
+                // Unset the iso-2022-jp output flag and return error.
+                this.iso2022jp_output_flag = false;
+                return 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 (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 === end_of_stream) {
+                    // Return finished.
+                    return finished;
+                }
+                // Otherwise
+                // Unset the iso-2022-jp output flag and return error.
+                this.iso2022jp_output_flag = false;
+                return 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 (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 === end_of_stream) {
+                    // Return finished.
+                    return finished;
+                }
+                // Otherwise
+                // Unset the iso-2022-jp output flag and return error.
+                this.iso2022jp_output_flag = false;
+                return 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 (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 === end_of_stream) {
+                    // Return finished.
+                    return finished;
+                }
+                // Otherwise
+                // Unset the iso-2022-jp output flag and return error.
+                this.iso2022jp_output_flag = false;
+                return 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 decoderError(this.fatal);
+                }
+                // 0x21 to 0x7E
+                if (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.
+                    const pointer = (this.iso2022jp_lead - 0x21) * 94 + bite - 0x21;
+                    // 3. Let code point be the index code point for pointer in
+                    // index jis0208.
+                    const code_point = indexCodePointFor(pointer, index('jis0208'));
+                    // 4. If code point is null, return error.
+                    if (code_point === null)
+                        return decoderError(this.fatal);
+                    // 5. Return a code point whose value is code point.
+                    return code_point;
+                }
+                // end-of-stream
+                if (bite === end_of_stream) {
+                    // Set the iso-2022-jp decoder state to lead byte, prepend
+                    // byte to stream, and return error.
+                    this.iso2022jp_decoder_state = states.LeadByte;
+                    stream.prepend(bite);
+                    return decoderError(this.fatal);
+                }
+                // Otherwise
+                // Set iso-2022-jp decoder state to lead byte and return
+                // error.
+                this.iso2022jp_decoder_state = states.LeadByte;
+                return 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 decoderError(this.fatal);
+            case states.Escape:
+                // Escape
+                // 1. Let lead be iso-2022-jp lead and set iso-2022-jp lead to
+                // 0x00.
+                const lead = this.iso2022jp_lead;
+                this.iso2022jp_lead = 0x00;
+                // 2. Let state be null.
+                let 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.
+                    const 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 : 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 decoderError(this.fatal);
+        }
+    }
+}
+//# sourceMappingURL=ISO2022JPDecoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/iso-2022-jp/ISO2022JPEncoder.js

@@ -0,0 +1,120 @@
+import { encoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexPointerFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIICodePoint } from "../../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
+ */
+export class ISO2022JPEncoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream and iso-2022-jp encoder
+        // state is not ASCII, prepend code point to stream, set
+        // iso-2022-jp encoder state to ASCII, and return three bytes
+        // 0x1B 0x28 0x42.
+        if (code_point === end_of_stream &&
+            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 === end_of_stream && this.iso2022jp_state === states.ASCII)
+            return finished;
+        // 3. If ISO-2022-JP encoder state is ASCII or Roman, and code
+        // point is U+000E, U+000F, or U+001B, return error with U+FFFD.
+        if ((this.iso2022jp_state === states.ASCII ||
+            this.iso2022jp_state === states.Roman) &&
+            (code_point === 0x000E || code_point === 0x000F ||
+                code_point === 0x001B)) {
+            return encoderError(0xFFFD);
+        }
+        // 4. If iso-2022-jp encoder state is ASCII and code point is an
+        // ASCII code point, return a byte whose value is code point.
+        if (this.iso2022jp_state === states.ASCII &&
+            isASCIICodePoint(code_point))
+            return code_point;
+        // 5. If iso-2022-jp encoder state is Roman and code point is an
+        // ASCII code point, excluding U+005C and U+007E, or is U+00A5
+        // or U+203E, run these substeps:
+        if (this.iso2022jp_state === states.Roman &&
+            ((isASCIICodePoint(code_point) &&
+                code_point !== 0x005C && code_point !== 0x007E) ||
+                (code_point == 0x00A5 || code_point == 0x203E))) {
+            // 1. If code point is an ASCII code point, return a byte
+            // whose value is code point.
+            if (isASCIICodePoint(code_point))
+                return code_point;
+            // 2. If code point is U+00A5, return byte 0x5C.
+            if (code_point === 0x00A5)
+                return 0x5C;
+            // 3. If code point is U+203E, return byte 0x7E.
+            if (code_point === 0x203E)
+                return 0x7E;
+        }
+        // 6. If code point is an ASCII code point, and iso-2022-jp
+        // encoder state is not ASCII, prepend code point to stream, set
+        // iso-2022-jp encoder state to ASCII, and return three bytes
+        // 0x1B 0x28 0x42.
+        if (isASCIICodePoint(code_point) &&
+            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.
+        const pointer = indexPointerFor(code_point, index('jis0208'));
+        // 10. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encoderError(code_point);
+        // 11. If iso-2022-jp encoder state is not jis0208, prepend code
+        // point to stream, set iso-2022-jp encoder state to jis0208,
+        // and return three bytes 0x1B 0x24 0x42.
+        if (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.
+        const lead = Math.floor(pointer / 94) + 0x21;
+        // 13. Let trail be pointer % 94 + 0x21.
+        const trail = pointer % 94 + 0x21;
+        // 14. Return two bytes whose values are lead and trail.
+        return [lead, trail];
+    }
+}
+//# sourceMappingURL=ISO2022JPEncoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/iso-2022-jp/ISO2022JPEncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/coders/iso-2022-jp/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/iso-2022-jp/index.js

@@ -0,0 +1,3 @@
+export * from './ISO2022JPDecoder';
+export * from './ISO2022JPEncoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/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,cAAc,oBAAoB,CAAC;AACnC,cAAc,oBAAoB,CAAC"}

backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/shift-jis/ShiftJISDecoder.js

@@ -0,0 +1,91 @@
+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { index, indexCodePointFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIIByte } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export class ShiftJISDecoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream and Shift_JIS lead is not 0x00,
+        // set Shift_JIS lead to 0x00 and return error.
+        if (bite === end_of_stream && this.Shift_JIS_lead !== 0x00) {
+            this.Shift_JIS_lead = 0x00;
+            return decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream and Shift_JIS lead is 0x00,
+        // return finished.
+        if (bite === end_of_stream && this.Shift_JIS_lead === 0x00)
+            return finished;
+        // 3. If Shift_JIS lead is not 0x00, let lead be Shift_JIS lead,
+        // let pointer be null, set Shift_JIS lead to 0x00, and then run
+        // these substeps:
+        if (this.Shift_JIS_lead !== 0x00) {
+            const lead = this.Shift_JIS_lead;
+            let pointer = null;
+            this.Shift_JIS_lead = 0x00;
+            // 1. Let offset be 0x40, if byte is less than 0x7F, and 0x41
+            // otherwise.
+            const offset = (bite < 0x7F) ? 0x40 : 0x41;
+            // 2. Let lead offset be 0x81, if lead is less than 0xA0, and
+            // 0xC1 otherwise.
+            const lead_offset = (lead < 0xA0) ? 0x81 : 0xC1;
+            // 3. If byte is in the range 0x40 to 0x7E, inclusive, or 0x80
+            // to 0xFC, inclusive, set pointer to (lead − lead offset) ×
+            // 188 + byte − offset.
+            if (inRange(bite, 0x40, 0x7E) || inRange(bite, 0x80, 0xFC))
+                pointer = (lead - lead_offset) * 188 + bite - offset;
+            // 4. If pointer is in the range 8836 to 10715, inclusive,
+            // return a code point whose value is 0xE000 − 8836 + pointer.
+            if (inRange(pointer, 8836, 10715))
+                return 0xE000 - 8836 + pointer;
+            // 5. Let code point be null, if pointer is null, and the
+            // index code point for pointer in index jis0208 otherwise.
+            const code_point = (pointer === null) ? null :
+                indexCodePointFor(pointer, index('jis0208'));
+            // 6. If code point is null and byte is an ASCII byte, prepend
+            // byte to stream.
+            if (code_point === null && isASCIIByte(bite))
+                stream.prepend(bite);
+            // 7. If code point is null, return error.
+            if (code_point === null)
+                return decoderError(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 (isASCIIByte(bite) || bite === 0x80)
+            return bite;
+        // 5. If byte is in the range 0xA1 to 0xDF, inclusive, return a
+        // code point whose value is 0xFF61 − 0xA1 + byte.
+        if (inRange(bite, 0xA1, 0xDF))
+            return 0xFF61 - 0xA1 + bite;
+        // 6. If byte is in the range 0x81 to 0x9F, inclusive, or 0xE0
+        // to 0xFC, inclusive, set Shift_JIS lead to byte and return
+        // continue.
+        if (inRange(bite, 0x81, 0x9F) || inRange(bite, 0xE0, 0xFC)) {
+            this.Shift_JIS_lead = bite;
+            return null;
+        }
+        // 7. Return error.
+        return decoderError(this.fatal);
+    }
+}
+//# sourceMappingURL=ShiftJISDecoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/shift-jis/ShiftJISDecoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/shift-jis/ShiftJISEncoder.js

@@ -0,0 +1,61 @@
+import { encoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { indexShiftJISPointerFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export class ShiftJISEncoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is an ASCII code point or U+0080, return a
+        // byte whose value is code point.
+        if (isASCIICodePoint(code_point) || code_point === 0x0080)
+            return code_point;
+        // 3. If code point is U+00A5, return byte 0x5C.
+        if (code_point === 0x00A5)
+            return 0x5C;
+        // 4. If code point is U+203E, return byte 0x7E.
+        if (code_point === 0x203E)
+            return 0x7E;
+        // 5. If code point is in the range U+FF61 to U+FF9F, inclusive,
+        // return a byte whose value is code point − 0xFF61 + 0xA1.
+        if (inRange(code_point, 0xFF61, 0xFF9F))
+            return code_point - 0xFF61 + 0xA1;
+        // 6. If code point is U+2212, set it to U+FF0D.
+        if (code_point === 0x2212)
+            code_point = 0xFF0D;
+        // 7. Let pointer be the index Shift_JIS pointer for code point.
+        const pointer = indexShiftJISPointerFor(code_point);
+        // 8. If pointer is null, return error with code point.
+        if (pointer === null)
+            return encoderError(code_point);
+        // 9. Let lead be Math.floor(pointer / 188).
+        const lead = Math.floor(pointer / 188);
+        // 10. Let lead offset be 0x81, if lead is less than 0x1F, and
+        // 0xC1 otherwise.
+        const lead_offset = (lead < 0x1F) ? 0x81 : 0xC1;
+        // 11. Let trail be pointer % 188.
+        const trail = pointer % 188;
+        // 12. Let offset be 0x40, if trail is less than 0x3F, and 0x41
+        // otherwise.
+        const offset = (trail < 0x3F) ? 0x40 : 0x41;
+        // 13. Return two bytes whose values are lead + lead offset and
+        // trail + offset.
+        return [lead + lead_offset, trail + offset];
+    }
+}
+//# sourceMappingURL=ShiftJISEncoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/shift-jis/ShiftJISEncoder.js.map

@@ -0,0 +1 @@
+{"version":3,"file":"ShiftJISEncoder.js","sourceRoot":"","sources":["../../../../src/coders/shift-jis/ShiftJISEncoder.ts"],"names":[],"mappings":"AACA,OAAO,EAAE,YAAY,EAAE,MAAM,0BAA0B,CAAC;AACxD,OAAO,EAAE,QAAQ,EAAE,MAAM,yBAAyB,CAAC;AACnD,OAAO,EAAE,uBAAuB,EAAE,MAAM,wBAAwB,CAAC;AACjE,OAAO,EAAE,aAAa,EAAE,gBAAgB,EAAE,MAAM,4BAA4B,CAAC;AAC7E,OAAO,EAAE,OAAO,EAAE,MAAM,0BAA0B,CAAC;AAEnD;;;;GAIG;AACH,MAAM,OAAO,eAAe;IAI1B,YAAY,OAA4B;QACtC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;OAIG;IACH,OAAO,CAAC,MAAc,EAAE,UAAkB;QACxC,sDAAsD;QACtD,IAAI,UAAU,KAAK,aAAa;YAC9B,OAAO,QAAQ,CAAC;QAElB,8DAA8D;QAC9D,kCAAkC;QAClC,IAAI,gBAAgB,CAAC,UAAU,CAAC,IAAI,UAAU,KAAK,MAAM;YACvD,OAAO,UAAU,CAAC;QAEpB,gDAAgD;QAChD,IAAI,UAAU,KAAK,MAAM;YACvB,OAAO,IAAI,CAAC;QAEd,gDAAgD;QAChD,IAAI,UAAU,KAAK,MAAM;YACvB,OAAO,IAAI,CAAC;QAEd,gEAAgE;QAChE,2DAA2D;QAC3D,IAAI,OAAO,CAAC,UAAU,EAAE,MAAM,EAAE,MAAM,CAAC;YACrC,OAAO,UAAU,GAAG,MAAM,GAAG,IAAI,CAAC;QAEpC,gDAAgD;QAChD,IAAI,UAAU,KAAK,MAAM;YACvB,UAAU,GAAG,MAAM,CAAC;QAEtB,gEAAgE;QAChE,MAAM,OAAO,GAAG,uBAAuB,CAAC,UAAU,CAAC,CAAC;QAEpD,uDAAuD;QACvD,IAAI,OAAO,KAAK,IAAI;YAClB,OAAO,YAAY,CAAC,UAAU,CAAC,CAAC;QAElC,4CAA4C;QAC5C,MAAM,IAAI,GAAG,IAAI,CAAC,KAAK,CAAC,OAAO,GAAG,GAAG,CAAC,CAAC;QAEvC,8DAA8D;QAC9D,kBAAkB;QAClB,MAAM,WAAW,GAAG,CAAC,IAAI,GAAG,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC;QAEhD,kCAAkC;QAClC,MAAM,KAAK,GAAG,OAAO,GAAG,GAAG,CAAC;QAE5B,+DAA+D;QAC/D,aAAa;QACb,MAAM,MAAM,GAAG,CAAC,KAAK,GAAG,IAAI,CAAC,CAAC,CAAC,CAAC,IAAI,CAAC,CAAC,CAAC,IAAI,CAAC;QAE5C,+DAA+D;QAC/D,kBAAkB;QAClB,OAAO,CAAC,IAAI,GAAG,WAAW,EAAE,KAAK,GAAG,MAAM,CAAC,CAAC;IAC9C,CAAC;CACF"}

backend/node_modules/@zxing/text-encoding/es2015/coders/shift-jis/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/shift-jis/index.js

@@ -0,0 +1,3 @@
+export * from './ShiftJISDecoder';
+export * from './ShiftJISEncoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/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,cAAc,mBAAmB,CAAC;AAClC,cAAc,mBAAmB,CAAC"}

backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/single-byte/SingleByteDecoder.js

@@ -0,0 +1,40 @@
+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { end_of_stream, isASCIIByte } from "../../encoding/terminology";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {!Array.<number>} index The encoding index.
+ * @param {{fatal: boolean}} options
+ */
+export class SingleByteDecoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream, return finished.
+        if (bite === end_of_stream)
+            return finished;
+        // 2. If byte is an ASCII byte, return a code point whose value
+        // is byte.
+        if (isASCIIByte(bite))
+            return bite;
+        // 3. Let code point be the index code point for byte − 0x80 in
+        // index single-byte.
+        const code_point = this.index[bite - 0x80];
+        // 4. If code point is null, return error.
+        if (!code_point)
+            return decoderError(this.fatal);
+        // 5. Return a code point whose value is code point.
+        return code_point;
+    }
+}
+//# sourceMappingURL=SingleByteDecoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/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,OAAO,EAAE,YAAY,EAAE,MAAM,0BAA0B,CAAC;AACxD,OAAO,EAAE,QAAQ,EAAE,MAAM,yBAAyB,CAAC;AACnD,OAAO,EAAE,aAAa,EAAE,WAAW,EAAE,MAAM,4BAA4B,CAAC;AAExE;;;;;GAKG;AACH,MAAM,OAAO,iBAAiB;IAI5B,YAA6B,KAAoB,EAAE,OAA4B;QAAlD,UAAK,GAAL,KAAK,CAAe;QAC/C,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;;;OAMG;IACH,OAAO,CAAC,MAAc,EAAE,IAAY;QAClC,gDAAgD;QAChD,IAAI,IAAI,KAAK,aAAa;YACxB,OAAO,QAAQ,CAAC;QAElB,+DAA+D;QAC/D,WAAW;QACX,IAAI,WAAW,CAAC,IAAI,CAAC;YACnB,OAAO,IAAI,CAAC;QAEd,+DAA+D;QAC/D,qBAAqB;QACrB,MAAM,UAAU,GAAG,IAAI,CAAC,KAAK,CAAC,IAAI,GAAG,IAAI,CAAC,CAAC;QAE3C,0CAA0C;QAC1C,IAAI,CAAC,UAAU;YACb,OAAO,YAAY,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QAElC,oDAAoD;QACpD,OAAO,UAAU,CAAC;IACpB,CAAC;CACF"}

backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/single-byte/SingleByteEncoder.js

@@ -0,0 +1,39 @@
+import { encoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { indexPointerFor } from "../../encoding/indexes";
+import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {!Array.<?number>} index The encoding index.
+ * @param {{fatal: boolean}} options
+ */
+export class SingleByteEncoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (isASCIICodePoint(code_point))
+            return code_point;
+        // 3. Let pointer be the index pointer for code point in index
+        // single-byte.
+        const pointer = indexPointerFor(code_point, this.index);
+        // 4. If pointer is null, return error with code point.
+        if (pointer === null)
+            encoderError(code_point);
+        // 5. Return a byte whose value is pointer + 0x80.
+        return pointer + 0x80;
+    }
+}
+//# sourceMappingURL=SingleByteEncoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/single-byte/SingleByteEncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/coders/single-byte/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/single-byte/index.js

@@ -0,0 +1,3 @@
+export * from './SingleByteDecoder';
+export * from './SingleByteEncoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/single-byte/index.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/utf-16/UTF16Decoder.js

@@ -0,0 +1,93 @@
+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { end_of_stream } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+import { convertCodeUnitToBytes } from "./converCodeUnitToBytes";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {boolean} utf16_be True if big-endian, false if little-endian.
+ * @param {{fatal: boolean}} options
+ */
+export class UTF16Decoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream and either utf-16 lead byte or
+        // utf-16 lead surrogate is not null, set utf-16 lead byte and
+        // utf-16 lead surrogate to null, and return error.
+        if (bite === end_of_stream && (this.utf16_lead_byte !== null ||
+            this.utf16_lead_surrogate !== null)) {
+            return 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 === end_of_stream && this.utf16_lead_byte === null &&
+            this.utf16_lead_surrogate === null) {
+            return finished;
+        }
+        // 3. If utf-16 lead byte is null, set utf-16 lead byte to byte
+        // and return continue.
+        if (this.utf16_lead_byte === null) {
+            this.utf16_lead_byte = bite;
+            return null;
+        }
+        // 4. Let code unit be the result of:
+        let 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) {
+            const 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 (inRange(code_unit, 0xDC00, 0xDFFF)) {
+                return 0x10000 + (lead_surrogate - 0xD800) * 0x400 +
+                    (code_unit - 0xDC00);
+            }
+            // 2. Prepend the sequence resulting of converting code unit
+            // to bytes using utf-16be decoder flag to stream and return
+            // error.
+            stream.prepend(convertCodeUnitToBytes(code_unit, this.utf16_be));
+            return 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 (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 (inRange(code_unit, 0xDC00, 0xDFFF))
+            return decoderError(this.fatal);
+        // 8. Return code point code unit.
+        return code_unit;
+    }
+}
+//# sourceMappingURL=UTF16Decoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/utf-16/UTF16Decoder.js.map

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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/utf-16/UTF16Encoder.js

@@ -0,0 +1,40 @@
+import { finished } from "../../encoding/finished";
+import { end_of_stream } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+import { convertCodeUnitToBytes } from "./converCodeUnitToBytes";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {boolean} utf16_be True if big-endian, false if little-endian.
+ * @param {{fatal: boolean}} options
+ */
+export class UTF16Encoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is in the range U+0000 to U+FFFF, inclusive,
+        // return the sequence resulting of converting code point to
+        // bytes using utf-16be encoder flag.
+        if (inRange(code_point, 0x0000, 0xFFFF))
+            return convertCodeUnitToBytes(code_point, this.utf16_be);
+        // 3. Let lead be ((code point − 0x10000) >> 10) + 0xD800,
+        // converted to bytes using utf-16be encoder flag.
+        const lead = 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.
+        const trail = convertCodeUnitToBytes(((code_point - 0x10000) & 0x3FF) + 0xDC00, this.utf16_be);
+        // 5. Return a byte sequence of lead followed by trail.
+        return lead.concat(trail);
+    }
+}
+//# sourceMappingURL=UTF16Encoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/utf-16/UTF16Encoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/utf-16/converCodeUnitToBytes.js

@@ -0,0 +1,18 @@
+/**
+ * @param {number} code_unit
+ * @param {boolean} utf16be
+ * @return {!Array.<number>} bytes
+ */
+export function convertCodeUnitToBytes(code_unit, utf16be) {
+    // 1. Let byte1 be code unit >> 8.
+    const byte1 = code_unit >> 8;
+    // 2. Let byte2 be code unit & 0x00FF.
+    const 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];
+}
+//# sourceMappingURL=converCodeUnitToBytes.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/utf-16/converCodeUnitToBytes.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/coders/utf-16/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/utf-16/index.js

@@ -0,0 +1,3 @@
+export * from './UTF16Decoder';
+export * from './UTF16Encoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/utf-16/index.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/utf-8/UTF8Decoder.js

@@ -0,0 +1,124 @@
+import { decoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { end_of_stream } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export class UTF8Decoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream and utf-8 bytes needed is not 0,
+        // set utf-8 bytes needed to 0 and return error.
+        if (bite === end_of_stream && this.utf8_bytes_needed !== 0) {
+            this.utf8_bytes_needed = 0;
+            return decoderError(this.fatal);
+        }
+        // 2. If byte is end-of-stream, return finished.
+        if (bite === end_of_stream)
+            return finished;
+        // 3. If utf-8 bytes needed is 0, based on byte:
+        if (this.utf8_bytes_needed === 0) {
+            // 0x00 to 0x7F
+            if (inRange(bite, 0x00, 0x7F)) {
+                // Return a code point whose value is byte.
+                return bite;
+            }
+            // 0xC2 to 0xDF
+            else if (inRange(bite, 0xC2, 0xDF)) {
+                // 1. Set utf-8 bytes needed to 1.
+                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 (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 (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 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 (!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 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.
+        const 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;
+    }
+}
+//# sourceMappingURL=UTF8Decoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/utf-8/UTF8Decoder.js.map

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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/utf-8/UTF8Encoder.js

@@ -0,0 +1,62 @@
+import { finished } from "../../encoding/finished";
+import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export class UTF8Encoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1. If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (isASCIICodePoint(code_point))
+            return code_point;
+        // 3. Set count and offset based on the range code point is in:
+        let count, offset;
+        // U+0080 to U+07FF, inclusive:
+        if (inRange(code_point, 0x0080, 0x07FF)) {
+            // 1 and 0xC0
+            count = 1;
+            offset = 0xC0;
+        }
+        // U+0800 to U+FFFF, inclusive:
+        else if (inRange(code_point, 0x0800, 0xFFFF)) {
+            // 2 and 0xE0
+            count = 2;
+            offset = 0xE0;
+        }
+        // U+10000 to U+10FFFF, inclusive:
+        else if (inRange(code_point, 0x10000, 0x10FFFF)) {
+            // 3 and 0xF0
+            count = 3;
+            offset = 0xF0;
+        }
+        // 4. Let bytes be a byte sequence whose first byte is (code
+        // point >> (6 × count)) + offset.
+        const 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)).
+            const 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;
+    }
+}
+//# sourceMappingURL=UTF8Encoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/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,OAAO,EAAE,QAAQ,EAAE,MAAM,yBAAyB,CAAC;AACnD,OAAO,EAAE,aAAa,EAAE,gBAAgB,EAAE,MAAM,4BAA4B,CAAC;AAC7E,OAAO,EAAE,OAAO,EAAE,MAAM,0BAA0B,CAAC;AAEnD;;;;GAIG;AACH,MAAM,OAAO,WAAW;IAItB,YAAY,OAA4B;QACtC,IAAI,CAAC,KAAK,GAAG,OAAO,CAAC,KAAK,CAAC;IAC7B,CAAC;IAED;;;;OAIG;IACH,OAAO,CAAC,MAAc,EAAE,UAAkB;QACxC,sDAAsD;QACtD,IAAI,UAAU,KAAK,aAAa;YAC9B,OAAO,QAAQ,CAAC;QAElB,+DAA+D;QAC/D,uBAAuB;QACvB,IAAI,gBAAgB,CAAC,UAAU,CAAC;YAC9B,OAAO,UAAU,CAAC;QAEpB,+DAA+D;QAC/D,IAAI,KAAa,EAAE,MAAc,CAAC;QAClC,+BAA+B;QAC/B,IAAI,OAAO,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,OAAO,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,OAAO,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,MAAM,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,MAAM,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;CACF"}

backend/node_modules/@zxing/text-encoding/es2015/coders/utf-8/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/utf-8/index.js

@@ -0,0 +1,3 @@
+export * from './UTF8Decoder';
+export * from './UTF8Encoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/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,cAAc,eAAe,CAAC;AAC9B,cAAc,eAAe,CAAC"}

backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/x-user-defined/XUserDefinedDecoder.js

@@ -0,0 +1,31 @@
+import { finished } from "../../encoding/finished";
+import { end_of_stream, isASCIIByte } from "../../encoding/terminology";
+/**
+ * @constructor
+ * @implements {Decoder}
+ * @param {{fatal: boolean}} options
+ */
+export class XUserDefinedDecoder {
+    constructor(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.
+     */
+    handler(stream, bite) {
+        // 1. If byte is end-of-stream, return finished.
+        if (bite === end_of_stream)
+            return finished;
+        // 2. If byte is an ASCII byte, return a code point whose value
+        // is byte.
+        if (isASCIIByte(bite))
+            return bite;
+        // 3. Return a code point whose value is 0xF780 + byte − 0x80.
+        return 0xF780 + bite - 0x80;
+    }
+}
+//# sourceMappingURL=XUserDefinedDecoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/x-user-defined/XUserDefinedDecoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/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/es2015/coders/x-user-defined/XUserDefinedEncoder.js

@@ -0,0 +1,35 @@
+import { encoderError } from "../../encoding/encodings";
+import { finished } from "../../encoding/finished";
+import { end_of_stream, isASCIICodePoint } from "../../encoding/terminology";
+import { inRange } from "../../encoding/utilities";
+/**
+ * @constructor
+ * @implements {Encoder}
+ * @param {{fatal: boolean}} options
+ */
+export class XUserDefinedEncoder {
+    constructor(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.
+     */
+    handler(stream, code_point) {
+        // 1.If code point is end-of-stream, return finished.
+        if (code_point === end_of_stream)
+            return finished;
+        // 2. If code point is an ASCII code point, return a byte whose
+        // value is code point.
+        if (isASCIICodePoint(code_point))
+            return code_point;
+        // 3. If code point is in the range U+F780 to U+F7FF, inclusive,
+        // return a byte whose value is code point − 0xF780 + 0x80.
+        if (inRange(code_point, 0xF780, 0xF7FF))
+            return code_point - 0xF780 + 0x80;
+        // 4. Return error with code point.
+        return encoderError(code_point);
+    }
+}
+//# sourceMappingURL=XUserDefinedEncoder.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/x-user-defined/XUserDefinedEncoder.js.map

@@ -0,0 +1 @@
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backend/node_modules/@zxing/text-encoding/es2015/coders/x-user-defined/index.d.ts

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

backend/node_modules/@zxing/text-encoding/es2015/coders/x-user-defined/index.js

@@ -0,0 +1,3 @@
+export * from './XUserDefinedDecoder';
+export * from './XUserDefinedEncoder';
+//# sourceMappingURL=index.js.map

backend/node_modules/@zxing/text-encoding/es2015/coders/x-user-defined/index.js.map

@@ -0,0 +1 @@
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