lean-qr - npm Package Compare versions

Comparing version 1.2.0 to 1.3.0

bin/argparser.js

 function parseArg(flag, arg) {
   switch (flag.type) {
-    case 'string': return arg;
+    case 'string':
+      return arg;
     case 'enum':
       if (!flag.values.includes(arg)) {
-        throw new Error(`Unknown value ${arg} for ${flag.name}; expected: ${flag.values.join(', ')}`);
+        throw new Error(
+          `Unknown value ${arg} for ${flag.name}; expected: ${flag.values.join(
+            ', ',
+          )}`,
+        );
       }
@@ -60,3 +65,5 @@ return arg;
   const result = {};
-  flags.forEach(({ id, def }) => { result[id] = def; });
+  flags.forEach(({ id, def }) => {
+    result[id] = def;
+  });
   for (; i < argv.length; ++i) {
@@ -74,3 +81,3 @@ const arg = argv[i];
       const keyName = arg.substr(2, p - 2);
-      const flag = flags.find(({ name }) => (name === keyName));
+      const flag = flags.find(({ name }) => name === keyName);
       if (!flag) {
@@ -82,3 +89,6 @@ throw new Error(`Unknown option ${keyName}`);
       } else {
-        result[flag.id] = parseArg(flag, (p < arg.length) ? arg.substr(p) : argv[++i]);
+        result[flag.id] = parseArg(
+          flag,
+          p < arg.length ? arg.substr(p) : argv[++i],
+        );
       }
@@ -88,3 +98,3 @@ } else if (arg.startsWith('-')) {
         const keyName = arg[p];
-        const flag = flags.find(({ short }) => (short === keyName));
+        const flag = flags.find(({ short }) => short === keyName);
         if (!flag) {
@@ -99,3 +109,6 @@ throw new Error(`Unknown shorthand option ${keyName}`);
         } else {
-          result[flag.id] = parseArg(flag, (p < arg.length - 1) ? arg.substr(p + 1) : argv[++i]);
+          result[flag.id] = parseArg(
+            flag,
+            p < arg.length - 1 ? arg.substr(p + 1) : argv[++i],
+          );
           break;
@@ -102,0 +115,0 @@ }

bin/cli.js

 #!/usr/bin/env node
 
 const { mode, correction, generate } = require('../build/index.js');
+const { toSvgSource } = require('../build/extras/svg.js');
 const { printUsage, parseArgs } = require('./argparser.js');
@@ -28,16 +29,92 @@
 
-/* eslint-disable object-curly-newline */
 const FLAGS = [
-  { id: 'encoding', name: 'encoding', short: 'e', type: 'enum', values: [...ENCODINGS.keys()], def: 'auto', info: 'Set the encoding type for the content' },
-  { id: 'minCor', name: 'min-correction', short: 'c', type: 'enum', values: [...Object.keys(correction)], def: 'min', info: 'Set the minimum error correction level' },
-  { id: 'maxCor', name: 'max-correction', short: 'C', type: 'enum', values: [...Object.keys(correction)], def: 'max', info: 'Set the maximum error correction level' },
-  { id: 'minVer', name: 'min-version', short: 'v', type: 'int', min: 1, max: 40, def: 1, info: 'Set the minimum version (size)' },
-  { id: 'maxVer', name: 'max-version', short: 'V', type: 'int', min: 1, max: 40, def: 40, info: 'Set the maximum version (size)' },
-  { id: 'padding', name: 'padding', short: 'p', type: 'int', min: 0, def: 4, info: 'Set the edge padding size' },
-  { id: 'mask', name: 'mask', short: 'm', type: 'enum', values: ['auto', '0', '1', '2', '3', '4', '5', '6', '7'], def: 'auto', info: 'Set the masking type (advanced usage)' },
-  { id: 'format', name: 'format', short: 'f', type: 'enum', values: [...TEXT_FORMATS.keys()], def: 'text-ansi-invert', info: 'Set the output format' },
-  { id: 'info', name: 'info', short: 'i', type: 'presence', info: 'Print meta information to stderr' },
-  { id: 'help', name: 'help', short: '?', type: 'presence', info: 'Print documentation' },
+  {
+    id: 'encoding',
+    name: 'encoding',
+    short: 'e',
+    type: 'enum',
+    values: [...ENCODINGS.keys()],
+    def: 'auto',
+    info: 'Set the encoding type for the content',
+  },
+  {
+    id: 'minCor',
+    name: 'min-correction',
+    short: 'c',
+    type: 'enum',
+    values: [...Object.keys(correction)],
+    def: 'min',
+    info: 'Set the minimum error correction level',
+  },
+  {
+    id: 'maxCor',
+    name: 'max-correction',
+    short: 'C',
+    type: 'enum',
+    values: [...Object.keys(correction)],
+    def: 'max',
+    info: 'Set the maximum error correction level',
+  },
+  {
+    id: 'minVer',
+    name: 'min-version',
+    short: 'v',
+    type: 'int',
+    min: 1,
+    max: 40,
+    def: 1,
+    info: 'Set the minimum version (size)',
+  },
+  {
+    id: 'maxVer',
+    name: 'max-version',
+    short: 'V',
+    type: 'int',
+    min: 1,
+    max: 40,
+    def: 40,
+    info: 'Set the maximum version (size)',
+  },
+  {
+    id: 'padding',
+    name: 'padding',
+    short: 'p',
+    type: 'int',
+    min: 0,
+    def: 4,
+    info: 'Set the edge padding size',
+  },
+  {
+    id: 'mask',
+    name: 'mask',
+    short: 'm',
+    type: 'enum',
+    values: ['auto', '0', '1', '2', '3', '4', '5', '6', '7'],
+    def: 'auto',
+    info: 'Set the masking type (advanced usage)',
+  },
+  {
+    id: 'format',
+    name: 'format',
+    short: 'f',
+    type: 'enum',
+    values: [...TEXT_FORMATS.keys(), 'svg'],
+    def: 'text-ansi-invert',
+    info: 'Set the output format',
+  },
+  {
+    id: 'info',
+    name: 'info',
+    short: 'i',
+    type: 'presence',
+    info: 'Print meta information to stderr',
+  },
+  {
+    id: 'help',
+    name: 'help',
+    short: '?',
+    type: 'presence',
+    info: 'Print documentation',
+  },
 ];
-/* eslint-enable object-curly-newline */
 
@@ -65,7 +142,16 @@ try {
     maxVersion: args.maxVer,
-    mask: (args.mask === 'auto') ? null : Number(args.mask),
+    mask: args.mask === 'auto' ? null : Number(args.mask),
   });
   const tm1 = Date.now();
   let tm2;
-  if (TEXT_FORMATS.has(args.format)) {
+  if (args.format === 'svg') {
+    const result = toSvgSource(code, {
+      on: 'black',
+      off: 'white',
+      padX: args.padding,
+      padY: args.padding,
+    });
+    tm2 = Date.now();
+    process.stdout.write(`<?xml version="1.0" encoding="UTF-8" ?>${result}\n`);
+  } else if (TEXT_FORMATS.has(args.format)) {
     const result = code.toString({
@@ -72,0 +158,0 @@ ...TEXT_FORMATS.get(args.format),

build/index.js

@@ -1,2 +0,2 @@
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-//# sourceMappingURL=index.js.map
+"use strict";Object.defineProperty(exports,"__esModule",{value:!0});const t=t=>{const e=t>>18,r=t>>12&63,s=t>>5&127;return{capBits:8*(r*s+e*(s+1)),groups:e?[[r,s],[e,s+1]]:[[r,s]],ecsize:31&t}},e=[{id:1,v:[4711,5194,5871,6676,7578,10386,10708,11320,11934,534674,18996,535448,19834,278142,285430,285784,1318268,286494,1064508,1326460,1068700,1846780,1331006,1076926,1084762,568924,1085278,2637502,1867422,2645630,843390,73342,335486,1629822,1888062,3698494,1122142,4738910,1134270,1654494].map(t)},{id:0,v:[4618,5008,5530,9234,9592,17264,17394,533718,537750,279930,1054302,550038,296118,1328408,1332536,816572,304604,1086842,2897306,3421498,71002,71132,3687932,3696060,3442172,1127900,878012,6043068,1922492,2700796,7611868,6071772,5563868,6088156,6866428,8939004,3790300,8443356,2000380,8201724].map(t)},{id:3,v:[4525,4822,8754,8986,532978,17016,1057234,541270,1065492,549496,1065692,1589914,1082008,1356308,1856286,586360,3936988,332508,1118906,1372958,1643228,4223774,3715870,4240158,5796638,1688284,6849278,8143646,9704190,6615838,434974,9216798,5100318,2016030,3830558,2810654,2822942,3867422,5944094,9052958].map(t)},{id:2,v:[4401,4636,8630,16688,532854,16892,278970,541146,1065368,549372,2109848,1077724,1098102,1356184,1880472,3420670,4465116,4989404,4231610,2683388,1651230,139704,3736062,647710,3498494,1184286,7389694,8172030,6894078,6648318,7434750,9253374,12104190,504350,10838526,16785918,12157438,8561150,17605118,16073214].map(t)}],r={min:0,L:0,M:1,Q:2,H:3,max:3},s=t=>"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ 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f={auto:function(t){let{modes:e=[o,i,a,c]}=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const r=new Set(e),s=r.delete(c);return s&&(e=[...r]),(r,n)=>{let o=[{c:0,e:0}];for(let i=0;i<t.length;++i)if(o=e.filter((e=>e.reg.test(t[i]))).map((e=>u(o.map((r=>{const s={c:e,p:r.c===e?r.p:r,s:r.c===e?r.s:i};return s.v=t.substring(s.s,i+1),s.e=s.p.e+Math.ceil(e.est(s.v,n)),s}))))),!o.length){if(s)return void c(t)(r,n);throw new Error("Unencodable")}const i=[];for(let t=u(o);t.c;t=t.p)i.unshift(t.c(t.v));i.forEach((t=>t(r,n)))}},multi:n,eci:h,numeric:o,alphaNumeric:i,bytes:l,iso8859_1:a,utf8:c};class g{constructor(t){this.bytes=new Uint8Array(t),this.bits=0}push(t,e){for(let r=e,s=8-(7&this.bits);r>0;r-=s,s=8)this.bytes[this.bits>>>3]|=t<<s>>>r,this.bits+=Math.min(r,s)}}function p(t){Array.isArray(t)||(t=[255&t,t>>>8&255,t>>>16&255,t>>>24]);const e=new Uint8Array([...t,255]);return new Uint32Array(e.buffer,0,1)[0]}class d{constructor(t){let{size:e,d:r}=t;this.size=e,this.d=new Uint8Array(r||e*e)}get(t,e){return!!(1&this.d[e*this.size+t])}masked(t,e){return 2&this.d[e*this.size+t]}set(t,e,r){let s=arguments.length>3&&void 0!==arguments[3]?arguments[3]:1;this.d[e*this.size+t]=2*s|!!r}inv(t,e){this.d[e*this.size+t]^=1}toString(){let{on:t="##",off:e="  ",lf:r="\n",padX:s=4,padY:n=4}=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};const o=(e.repeat(this.size+2*s)+r).repeat(n),i=e.repeat(s);let l=o;for(let s=0;s<this.size;++s){l+=i;for(let r=0;r<this.size;++r)l+=this.get(r,s)?t:e;l+=i+r}return l+o}toImageData(t){let{on:e=4278190080,off:r=0}=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};const s=t.createImageData(this.size,this.size),n=new Uint32Array(s.data.buffer),o=p(e),i=p(r);n.fill(i);for(let t=0;t<this.size*this.size;++t)n[t]=1&this.d[t]?o:i;return s}toCanvas(t){let{padX:e=4,padY:r=4,...s}=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};t.width=this.size+2*e,t.height=this.size+2*r;const n=t.getContext("2d"),o=this.toImageData(n,s);n.putImageData(o,e,r)}}var m=[(t,e)=>!(1&(t^e)),(t,e)=>!(1&e),t=>!(t%3),(t,e)=>!((t+e)%3),(t,e)=>!(1&(Math.floor(t/3)^Math.floor(e/2))),(t,e)=>!((t&e&1)+t*e%3),(t,e)=>!((t&e&1)+t*e%3&1),(t,e)=>!((1&(t^e))+t*e%3&1)];const v=new Uint8Array(512);v[0]=1;for(let t=0,e=1;t<255;v[++t]=e)v[e+256]=t,e*=2,256&e&&(e^=285);const z=t=>v[t%255],w=t=>v[t+256],b=(t,e)=>{const r=new Uint8Array(t.length+e.length-1);for(let s=0;s<t.length;++s)for(let n=0;n<e.length;++n)r[s+n]^=z(t[s]+e[n]);return r.map(w)},y=(t,e)=>{const r=new Uint8Array(t.length+e.length-1);r.set(t,0);for(let s=0;s<t.length;++s)if(r[s]){const t=w(r[s]);for(let n=0;n<e.length;++n)r[s+n]^=z(e[n]+t)}return r.slice(t.length)},A=[[0],[0,0]];for(let t=1,e=A[1];t<30;++t){const r=b(e,[0,t]);A.push(r),e=r}const x=(t,e,r)=>{let s=e;const n=Math.max(...r.map((t=>t.length)));for(let e=0;e<n;++e)r.forEach((r=>{e<r.length&&(t[s++]=r[e])}));return s};var E=(t,e)=>{let{groups:r,ecsize:s}=e;const 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>0;i>>=1)t.set(8,(e>1?7:8)-e,1&i),t.set(n-8+e,8,1&i);for(let e=7;e-- >0;i>>=1)t.set(e>5?7:e,8,1&i),t.set(8,n-e-1,1&i)},N=(t,e,r)=>{for(let s=0;s<t.size;++s){let n=e,o=e;for(let e=0;e<t.size;++e)n=r(n,t.get(e,s)),o=r(o,t.get(s,e))}};var L=t=>(t=>{let e=0;return N(t,[0],((t,r)=>{let[s,n]=t;return r!==n?[1,r]:(4===s?e+=3:s>4&&++e,[s+1,n])})),e})(t)+3*(t=>{let e=0;for(let r=1;r<t.size;++r){let s=t.get(r-1,0),n=t.get(r,0)===s;for(let o=1;o<t.size;++o){const i=t.get(r-1,o),l=t.get(r,o)===i;e+=n&&l&&s===i,s=i,n=l}}return e})(t)+40*(t=>{let e=0;return N(t,0,((t,r)=>{const s=(t>>>1|2098176)&(3047517^(r?0:-1));return 2049&s&&++e,s})),e})(t)+(t=>{let e=0;for(let r=0;r<t.size;++r)for(let s=0;s<t.size;++s)e+=t.get(s,r);return 10*Math.floor(20*Math.abs(e/(t.size*t.size)-.5))})(t);const F=[],O=t=>{let e=F[t];if(!e){const r=new d({size:4*t+17});((t,e)=>{const 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g(2956);t(o,r),h=o.bits;for(let t=n;t>=s;--t){const s=e[t],n=s.v[r-1];if(n.capBits<h)continue;for(o.push(0,4),o.bits=o.bits+7&-8;o.bits<n.capBits;)o.push(60433,16);const[i,a]=O(r);return C(i,a,E(o.bytes,n)),null!==l?(D(i,m[l],l,s.id),i):m.map(((t,e)=>{const r=new d(i);return D(r,t,e,s.id),r.s=L(r),r})).reduce(((t,e)=>e.s<t.s?e:t))}}throw new Error("Too much data")},exports.mode=f;
+//# sourceMappingURL=index.js.map

index.d.ts

@@ -17,2 +17,4 @@ declare module 'lean-qr' {
 
+  export type RGBA = [number, number, number, number?];
+
   export interface Bitmap1D {
@@ -28,20 +30,26 @@ push(value: number, bits: number): void;
     toString(options?: {
-      on?: string,
-      off?: string,
-      lf?: string,
-      padX?: number,
-      padY?: number,
+      on?: RGBA;
+      off?: RGBA;
+      lf?: string;
+      padX?: number;
+      padY?: number;
     }): string;
 
-    toImageData<DataT extends ImageDataLike>(context: Context2DLike<DataT>, options?: {
-      on?: number,
-      off?: number,
-    }): DataT;
+    toImageData<DataT extends ImageDataLike>(
+      context: Context2DLike<DataT>,
+      options?: {
+        on?: RGBA;
+        off?: RGBA;
+      },
+    ): DataT;
 
-    toCanvas(canvas: CanvasLike<ImageDataLike>, options?: {
-      on?: number,
-      off?: number,
-      padX?: number,
-      padY?: number,
-    }): void;
+    toCanvas(
+      canvas: CanvasLike<ImageDataLike>,
+      options?: {
+        on?: RGBA;
+        off?: RGBA;
+        padX?: number;
+        padY?: number;
+      },
+    ): void;
   }
@@ -62,10 +70,10 @@
   export const mode: {
-    auto(value: string, options?: ModeAutoOptions): Mode,
-    multi(...modes: Mode[]): Mode,
-    eci(id: number): Mode,
-    numeric: ModeFactory,
-    alphaNumeric: ModeFactory,
-    bytes(data: Uint8Array | number[]): Mode,
-    iso8859_1: ModeFactory,
-    utf8: ModeFactory,
+    auto(value: string, options?: ModeAutoOptions): Mode;
+    multi(...modes: Mode[]): Mode;
+    eci(id: number): Mode;
+    numeric: ModeFactory;
+    alphaNumeric: ModeFactory;
+    bytes(data: Uint8Array | number[]): Mode;
+    iso8859_1: ModeFactory;
+    utf8: ModeFactory;
   };
@@ -90,3 +98,30 @@
 
-  export const generate: (data: Mode | string, options?: GenerateOptions) => Bitmap2D;
+  export const generate: (
+    data: Mode | string,
+    options?: GenerateOptions,
+  ) => Bitmap2D;
 }
+
+declare module 'lean-qr/extras/svg' {
+  import type { Bitmap2D } from 'lean-qr';
+
+  interface SVGOptions {
+    on?: string;
+    off?: string;
+    padX?: number;
+    padY?: number;
+    width?: number;
+    height?: number;
+    scale?: number;
+  }
+
+  export const toSvgPath: (code: Bitmap2D) => string;
+
+  export const toSvg: (
+    code: Bitmap2D,
+    target: Document | SVGElement,
+    options?: SVGOptions,
+  ) => SVGElement;
+
+  export const toSvgSource: (code: Bitmap2D, options?: SVGOptions) => string;
+}

package.json

 {
   "name": "lean-qr",
-  "version": "1.2.0",
+  "version": "1.3.0",
   "description": "minimal QR code generation",
@@ -12,10 +12,14 @@ "files": [
   "main": "build/index.js",
+  "exports": {
+    ".": "./build/index.js",
+    "./extras/*": "./build/extras/*.js",
+    "./extras/*.js": "./build/extras/*.js",
+    "./package.json": "./package.json"
+  },
   "types": "index.d.ts",
   "scripts": {
-    "build": "webpack --mode production",
-    "lint": "eslint --format codeframe --ext mjs,jsx,js src bin",
-    "start": "http-server . -d false -c-1 -a localhost -p 8080",
-    "test": "jest",
-    "posttest": "npm run lint",
-    "test:watch": "jest --watch"
+    "build": "rollup --config rollup.config.js",
+    "format": "prettier --write .",
+    "start": "static-server --index index.html --port 8080",
+    "test": "lean-test && lean-test --browser=chrome,firefox -x '**/node_modules' -x '**/.*' -x '**/*.int.*' && ./test-package/run.sh && prettier --check ."
   },
@@ -38,13 +42,11 @@ "repository": {
   "devDependencies": {
-    "@neutrinojs/airbnb-base": "9.x",
-    "@neutrinojs/jest": "9.x",
-    "@neutrinojs/library": "9.x",
-    "eslint": "7.x",
-    "http-server": "^0.12.3",
-    "jest": "26.x",
-    "neutrino": "9.x",
-    "pngjs": "^6.0.0",
-    "webpack": "4.x",
-    "webpack-cli": "3.x"
+    "@babel/preset-env": "7.x",
+    "@rollup/plugin-babel": "5.x",
+    "lean-test": "1.x",
+    "pngjs": "6.x",
+    "prettier": "2.5.1",
+    "rollup": "2.x",
+    "rollup-plugin-terser": "7.x",
+    "static-server": "2.x"
   }
 }

README.md

@@ -10,6 +10,8 @@ # Lean QR
 
+Or try it from the commandline: `npx lean-qr 'MY MESSAGE HERE'`
+
 ## Install dependency
 
 ```bash
-npm install --save-dev lean-qr
+npm install --save lean-qr
 ```
@@ -43,9 +45,11 @@
 
+### Shell
+
 There is also a small commandline tool included for testing:
 
 ```shell
-lean-qr 'MY MESSAGE HERE'
+npx lean-qr 'MY MESSAGE HERE'
 ```
 
-For full documentation, run `lean-qr --help`.
+For full documentation, run `npx lean-qr --help`.
 
@@ -341,2 +345,77 @@ ## Modes
 
+### `toSvg(code, target[, options])`
+
+This is not included in the main library to keep it small, but if you need
+SVG output, you can access it from a separate import (adds ~2kB):
+
+```javascript
+import { toSvg } from 'lean-qr/extras/svg';
+
+const mySvg = document.getElementById('my-svg');
+const svg = toSvg(code, mySvg, {
+  on: 'black',
+  off: 'transparent',
+  padX: 4,
+  padY: 4,
+  width: null,
+  height: null,
+  scale: 1,
+});
+```
+
+This will replace the image in `mySvg` with a copy of the current code. The
+result is always at a scale of 1 SVG unit per module (the viewBox will be
+resized to the correct size automatically). You can define a different
+size for the SVG element to scale the image.
+
+If `mySvg` is the `document` object, this will create and return a new SVG
+entity associated with the document (but not attached to it).
+
+If `width` / `height` is given, the root SVG element will have the explicit
+size applied. If these are not specified, they will be auto-calculated by
+multiplying the code size + padding by `scale`. You can override this for
+display by setting CSS properties (e.g. `mySvg.style.width = '100%'`).
+
+### `toSvgSource(code[, options])`
+
+Like `toSvg` but returns the source code for an SVG, rather than manipulating
+DOM nodes (can be called inside NodeJS).
+
+```javascript
+import { toSvgSource } from 'lean-qr/extras/svg';
+
+const svgSource = toSvgSource(code, {
+  on: 'black',
+  off: 'transparent',
+  padX: 4,
+  padY: 4,
+  width: null,
+  height: null,
+  scale: 1,
+});
+```
+
+Returns a complete SVG document which can be written to a standalone file or
+included inside a HTML document. If written to a file, you should prefix the
+source with `<?xml version="1.0" encoding="UTF-8" ?>`.
+
+### `toSvgPath(code)`
+
+A raw SVG path definition for the QR code. Used by `toSvg` and `toSvgSource`.
+
+```javascript
+import { toSvgPath } from 'lean-qr/extras/svg';
+
+const svgPath = toSvgPath(code);
+// e.g. "M1 2L1 1L2 1L2 2ZM3 3L3 2L4 2L4 3Z"
+```
+
+The returned path is always at a scale of 1 SVG unit to 1 module, with no
+padding. The path will define the whole QR code in a single string suitable for
+use inside `<path d="[path here]">`, and can be used with `fill-rule` of either
+`evenodd` or `nonzero`. The path is optimised to ensure only true edges are
+defined; it will not include overlapping edges (and will not have "cracks"
+between pixels). No other guarantees are made about the structure of this
+string, and the details could change in later versions.
+
 ### `get(x, y)`
@@ -355,2 +434,6 @@
 
+Note that this is only well-defined for `x` and `y` inside the QR code area.
+In particular: providing negative `x` or `y`, or values beyond the value of
+`code.size`, will give undefined results.
+
 ## Resources
@@ -357,0 +440,0 @@

No alert changes

Improved metrics

Total package byte prevSize

83252

increased by5.41%

Dev dependency count

8

decreased by-20%

Number of package files

10

increased by25%

Lines of code

433

increased by44.82%

Number of lines in readme file

439

increased by23.31%

No dependency changes