initial commit

.gitignore

@@ -0,0 +1,5 @@
+# https://dart.dev/guides/libraries/private-files
+# Created by `dart pub`
+.dart_tool/
+
+.DS_Store

.vscode/settings.json

@@ -0,0 +1,8 @@
+{
+    "dart.lineLength": 80,
+    "[dart]": {
+        "editor.rulers": [
+            80
+        ],
+    }
+}

CHANGELOG.md

@@ -0,0 +1,2 @@
+### 0.0.1
+- Initial version.

README.md

@@ -0,0 +1 @@
+TODO: write this.

analysis_options.yaml

@@ -0,0 +1 @@
+include: package:lints/recommended.yaml

bin/barcoder.dart

@@ -0,0 +1,74 @@
+// ignore_for_file: invalid_use_of_protected_member
+
+import 'dart:convert';
+
+import 'package:args/args.dart';
+import 'package:barcode/barcode.dart';
+import 'package:barcode/src/barcode_1d.dart';
+import 'package:barcode/src/qrcode.dart';
+import 'package:quiver/iterables.dart';
+
+final _parser = ArgParser()
+  ..addFlag(
+    'help',
+    abbr: 'h',
+    negatable: false,
+    help: 'Shows this help message.',
+  )
+  ..addFlag(
+    'version',
+    abbr: 'v',
+    negatable: false,
+    help: 'Shows the current version.',
+  )
+  ..addOption(
+    'type',
+    abbr: 't',
+    defaultsTo: '128',
+    help: 'Options: 128, qr.',
+  )
+  ..addOption(
+    'height',
+    abbr: 'y',
+    defaultsTo: '8',
+    help: 'Height for 1D barcodes.',
+  );
+
+void main(List<String> aargs) {
+  final args = _parser.parse(aargs);
+  if (args['help'] as bool) {
+    print(_parser.usage);
+    return;
+  }
+  if (args['version'] as bool) {
+    print('barcoder 0.0.1');
+    return;
+  }
+  final data = args.rest.first;
+  final type = args['type'] as String;
+  final height = int.parse(args['height']);
+  final output = switch (type) {
+    '128' => _barcode128(data, height: height),
+    'qr' => _qr(data),
+    _ => 'Unknown type: $type',
+  };
+  print(output);
+}
+
+String _pixel(bool pixel) => pixel ? '█' : ' ';
+
+String _barcode128(String data, {int height = 8}) {
+  final line =
+      (Barcode.code128() as Barcode1D).convert(data).map(_pixel).join();
+  return List.filled(height, line).join('\n');
+}
+
+String _qr(String data) {
+  final qr =
+      (Barcode.qrCode() as BarcodeQR).convert(utf8.encoder.convert(data));
+  final rows = partition(qr.pixels, qr.width);
+  final pixels = [
+    for (final row in rows) row.map((e) => e ? '█' : ' ').join(),
+  ];
+  return pixels.join('\n');
+}