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| #!/usr/bin/env node
| var yargs = require('yargs')
| var qr = require('../lib')
|
| function save (file, text, options) {
| qr.toFile(file, text, options, function (err, data) {
| if (err) {
| console.error('Error:', err.message)
| process.exit(1)
| }
|
| console.log('saved qrcode to: ' + file + '\n')
| })
| }
|
| function print (text, options) {
| options.type = 'terminal'
| qr.toString(text, options, function (err, text) {
| if (err) {
| console.error('Error:', err.message)
| process.exit(1)
| }
|
| console.log(text)
| })
| }
|
| function parseOptions (args) {
| return {
| version: args.qversion,
| errorCorrectionLevel: args.error,
| type: args.type,
| small: !!args.small,
| inverse: !!args.inverse,
| maskPattern: args.mask,
| margin: args.qzone,
| width: args.width,
| scale: args.scale,
| color: {
| light: args.lightcolor,
| dark: args.darkcolor
| }
| }
| }
|
| function processInputs (text, opts) {
| if (!text.length) {
| yargs.showHelp()
| process.exit(1)
| }
|
| if (opts.output) {
| save(opts.output, text, parseOptions(opts))
| } else {
| print(text, parseOptions(opts))
| }
| }
|
| var argv = yargs
| .detectLocale(false)
| .usage('Usage: $0 [options] <input string>')
| .option('v', {
| alias: 'qversion',
| description: 'QR Code symbol version (1 - 40)',
| group: 'QR Code options:',
| type: 'number'
| })
| .option('e', {
| alias: 'error',
| description: 'Error correction level',
| choices: ['L', 'M', 'Q', 'H'],
| group: 'QR Code options:'
| })
| .option('m', {
| alias: 'mask',
| description: 'Mask pattern (0 - 7)',
| group: 'QR Code options:',
| type: 'number'
| })
| .option('t', {
| alias: 'type',
| description: 'Output type',
| choices: ['png', 'svg', 'utf8'],
| implies: 'output',
| group: 'Renderer options:'
| })
| .option('i', {
| alias: 'inverse',
| type: 'boolean',
| description: 'Invert colors',
| group: 'Renderer options:'
| })
| .option('w', {
| alias: 'width',
| description: 'Image width (px)',
| conflicts: 'scale',
| group: 'Renderer options:',
| type: 'number'
| })
| .option('s', {
| alias: 'scale',
| description: 'Scale factor',
| conflicts: 'width',
| group: 'Renderer options:',
| type: 'number'
| })
| .option('q', {
| alias: 'qzone',
| description: 'Quiet zone size',
| group: 'Renderer options:',
| type: 'number'
| })
| .option('l', {
| alias: 'lightcolor',
| description: 'Light RGBA hex color',
| group: 'Renderer options:'
| })
| .option('d', {
| alias: 'darkcolor',
| description: 'Dark RGBA hex color',
| group: 'Renderer options:'
| })
| .option('small', {
| type: 'boolean',
| description: 'Output smaller QR code to terminal',
| conflicts: 'type',
| group: 'Renderer options:'
| })
| .option('o', {
| alias: 'output',
| description: 'Output file'
| })
| .help('h')
| .alias('h', 'help')
| .version()
| .example('$0 "some text"', 'Draw in terminal window')
| .example('$0 -o out.png "some text"', 'Save as png image')
| .example('$0 -d F00 -o out.png "some text"', 'Use red as foreground color')
| .parserConfiguration({'parse-numbers': false})
| .argv
|
| if (process.stdin.isTTY) {
| processInputs(argv._.join(' '), argv)
| } else {
| var text = ''
| process.stdin.setEncoding('utf8')
| process.stdin.on('readable', function () {
| var chunk = process.stdin.read()
| if (chunk !== null) {
| text += chunk
| }
| })
|
| process.stdin.on('end', function () {
| // this process can be run as a command outside of a tty so if there was no
| // data on stdin read from argv
| processInputs(text.length?text:argv._.join(' '), argv)
| })
| }
|
|
