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QR codes

License: BSD 3-Clause "New" or "Revised" License

Go 95.10% HTML 4.71% Makefile 0.18%

qr's Introduction

Basic QR encoder.

go get [-u] rsc.io/qr

qr's People

Contributors

Stargazers

Watchers

qr's Issues

Tests fail with libqrencode 4.1

Possibly to do with this entry in the release notes

Release Note:
The internal representation of the output code has been slightly changed - the second bit from LSB side now represents; 1:ECC bit / 0:data bit. This change is only for debug purposes and does not affect user applications.

--- FAIL: TestVersion (0.01s)
    qr_test.go:87: 1/7: Pixel[0][9] = data+black+137, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[0][10] = data+invert+136, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[0][11] = data+black+135, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[0][12] = data+black+invert+134, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[1][9] = data+black+invert+139, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[1][10] = data+invert+138, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[1][11] = data+black+invert+133, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[1][12] = data+132, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[2][9] = data+black+141, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[2][10] = data+invert+140, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[2][11] = data+invert+131, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[2][12] = data+black+invert+130, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[3][9] = data+black+invert+143, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[3][10] = data+142, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[3][11] = data+black+invert+129, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[3][12] = data+128, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[4][9] = data+145, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[4][10] = data+144, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[4][11] = data+127, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[4][12] = data+black+invert+126, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[5][9] = data+invert+147, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[5][10] = data+146, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[5][11] = data+black+125, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[5][12] = data+black+124, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[7][9] = data+black+invert+149, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[7][10] = data+black+invert+148, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[7][11] = data+black+invert+123, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[7][12] = data+black+122, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[8][9] = data+black+151, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[8][10] = data+black+invert+150, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[8][11] = data+invert+121, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[8][12] = data+invert+120, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[9][11] = data+invert+119, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[9][12] = data+118, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[9][13] = data+invert+73, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[9][14] = data+black+72, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[9][15] = data+invert+71, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[9][16] = data+70, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[9][17] = data+invert+25, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[9][18] = data+24, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[9][19] = data+black+invert+23, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[9][20] = data+black+22, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[10][11] = data+117, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[10][12] = data+black+invert+116, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[10][13] = data+black+invert+75, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[10][14] = data+invert+74, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[10][15] = data+69, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[10][16] = data+68, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[10][17] = data+black+27, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[10][18] = data+black+invert+26, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[10][19] = data+invert+21, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[10][20] = data+black+invert+20, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[11][11] = data+black+115, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[11][12] = data+114, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[11][13] = data+invert+77, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[11][14] = data+invert+76, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[11][15] = data+invert+67, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[11][16] = data+66, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[11][17] = data+black+29, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[11][18] = data+28, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[11][19] = data+black+invert+19, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[11][20] = data+black+invert+18, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[12][11] = data+113, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[12][12] = data+black+invert+112, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[12][13] = data+79, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[12][14] = data+black+invert+78, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[12][15] = data+65, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[12][16] = data+black+invert+64, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[12][17] = data+31, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[12][18] = data+invert+30, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[12][19] = data+17, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[12][20] = data+invert+16, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[13][11] = data+black+invert+111, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[13][12] = data+110, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[13][13] = data+81, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[13][14] = data+80, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[13][15] = data+black+invert+63, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[13][16] = data+black+invert+62, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[13][17] = data+invert+33, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[13][18] = data+black+32, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[13][19] = data+15, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[13][20] = data+black+14, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[14][11] = data+invert+109, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[14][12] = data+invert+108, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[14][13] = data+black+83, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[14][14] = data+82, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[14][15] = data+black+61, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[14][16] = data+invert+60, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[14][17] = data+black+invert+35, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[14][18] = data+black+invert+34, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[14][19] = data+black+13, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[14][20] = data+12, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[15][11] = data+black+invert+107, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[15][12] = data+black+106, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[15][13] = data+black+invert+85, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[15][14] = data+84, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[15][15] = data+black+invert+59, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[15][16] = data+black+58, want unused+black+0 0x1
    qr_test.go:87: 1/7: Pixel[15][17] = data+invert+37, want unused+0 0x0
    qr_test.go:87: 1/7: Pixel[15][18] = data+36, want unused+0 0x0
    qr_test.go:89: stopping after 100 bad pixels
etc...

go get fails with this repo as dependency

I faced an unexpected error while trying to go get github.com/claudiodangelis/qr-filetransfer through a 2 level dependency chain:

➜ GOPATH=~/installs/go-tools go get -u -v github.com/claudiodangelis/qr-filetransfer
github.com/claudiodangelis/qr-filetransfer (download)
github.com/jhoonb/archivex (download)
github.com/mattn/go-colorable (download)
github.com/mattn/go-isatty (download)
github.com/mdp/qrterminal (download)
github.com/rsc/qr (download)
package github.com/rsc/qr: code in directory /home/suhaskaranth/installs/go-tools/src/github.com/rsc/qr expects import "rsc.io/qr"

Specifically, github.com/claudiodangelis/qr-filetransfer ➜ github.com/mdp/qrterminal ➜ github.com/rsc/qr. My understanding was that this was due to an incorrect import of this module - mdp/qrterminal:qrterminal.go@44bd8ed#L7. And I opened a PR to correct the same - mdp/qrterminal#10. I wanted to confirm that this is indeed the right course of action and no change is required in this module, hence this issue.

Feature: Run from Wasmer CLI

Hey Russ,

What would it take to get this running via Wasmer? Right now I get:

$ wasmer run main.wasm 
error: failed to run `main.wasm`
│   1: module instantiation failed (compiler: cranelift)
╰─▶ 2: WebAssembly translation error: Error when converting wat: input bytes aren't valid utf-8

I'd love to be able to provide the URL and image as command line arguments. I think your project would get a lot of use if people could access it like this from the CLI, or as a WASM module they include in other projects.

Allow creation of Qart Codes without a prescribed URL.

Provided the result is constrained to proper URL syntax, the user can always go and register the domain after they've got the image they want and put a redirect there.

I have not thought clearly on the way to achieve this. I guess there's a matter of whether the length of the hostname should vary until .com lands on the most similar pixels, or if there should be a deeper search using various TLDs which the user could register (geography and budgets complicate this, I guess).

(BTW, this drive-by is a result of me trying to figure out how to relax the constraints on valid QR Code input to QR Code Monster)

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