feat: 多语言提取器

packages/sct_dev_tools/.gitignore

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+# https://dart.dev/guides/libraries/private-files
+# Created by `dart pub`
+.dart_tool/
+
+# Avoid committing pubspec.lock for library packages; see
+# https://dart.dev/guides/libraries/private-files#pubspeclock.
+pubspec.lock

packages/sct_dev_tools/CHANGELOG.md

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+## 1.0.0
+
+- Initial version.

packages/sct_dev_tools/README.md

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+<!-- 
+This README describes the package. If you publish this package to pub.dev,
+this README's contents appear on the landing page for your package.
+
+For information about how to write a good package README, see the guide for
+[writing package pages](https://dart.dev/guides/libraries/writing-package-pages). 
+
+For general information about developing packages, see the Dart guide for
+[creating packages](https://dart.dev/guides/libraries/create-library-packages)
+and the Flutter guide for
+[developing packages and plugins](https://flutter.dev/developing-packages). 
+-->
+
+TODO: Put a short description of the package here that helps potential users
+know whether this package might be useful for them.
+
+## Features
+
+TODO: List what your package can do. Maybe include images, gifs, or videos.
+
+## Getting started
+
+TODO: List prerequisites and provide or point to information on how to
+start using the package.
+
+## Usage
+
+TODO: Include short and useful examples for package users. Add longer examples
+to `/example` folder. 
+
+```dart
+const like = 'sample';
+```
+
+## Additional information
+
+TODO: Tell users more about the package: where to find more information, how to 
+contribute to the package, how to file issues, what response they can expect 
+from the package authors, and more.

packages/sct_dev_tools/analysis_options.yaml

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+# This file configures the static analysis results for your project (errors,
+# warnings, and lints).
+#
+# This enables the 'recommended' set of lints from `package:lints`.
+# This set helps identify many issues that may lead to problems when running
+# or consuming Dart code, and enforces writing Dart using a single, idiomatic
+# style and format.
+#
+# If you want a smaller set of lints you can change this to specify
+# 'package:lints/core.yaml'. These are just the most critical lints
+# (the recommended set includes the core lints).
+# The core lints are also what is used by pub.dev for scoring packages.
+
+include: package:lints/recommended.yaml
+
+# Uncomment the following section to specify additional rules.
+
+# linter:
+#   rules:
+#     - camel_case_types
+
+# analyzer:
+#   exclude:
+#     - path/to/excluded/files/**
+
+# For more information about the core and recommended set of lints, see
+# https://dart.dev/go/core-lints
+
+# For additional information about configuring this file, see
+# https://dart.dev/guides/language/analysis-options

packages/sct_dev_tools/bin/auto_l10n.dart

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+import 'dart:convert';
+import 'dart:io';
+import 'package:analyzer/dart/analysis/utilities.dart';
+import 'package:analyzer/dart/analysis/features.dart';
+import 'package:analyzer/dart/ast/visitor.dart';
+import 'package:analyzer/dart/ast/ast.dart';
+import 'package:uuid/v4.dart';
+
+final stringResult = <String>[];
+
+class AutoL10nTools {
+  void genL10nFiles() {
+    final dir = Directory('lib/ui');
+    for (var entity in dir.listSync(recursive: true)) {
+      if (entity is File && entity.path.endsWith('.dart')) {
+        print('Processing ${entity.path}...');
+        _processDartFile(entity);
+      }
+    }
+    if (stringResult.isNotEmpty) {
+      final outputMap = <String, String>{};
+      for (var value in stringResult) {
+        if (outputMap.containsValue(value)) {
+          continue;
+        }
+        final key = UuidV4().generate();
+        outputMap[key] = value;
+      }
+      // output to json
+      final j = json.encode(outputMap);
+      File("./lib/generated/l10_temp.json").writeAsStringSync(j);
+      print(
+          "output to json file (length: ${outputMap.length}): ./lib/generated/l10n_temp.json");
+    }
+    // output to json
+  }
+
+  void _processDartFile(File file) {
+    final parseResult = parseFile(
+        path: file.path, featureSet: FeatureSet.latestLanguageVersion());
+    final unit = parseResult.unit;
+    unit.accept(MyAstVisitor());
+  }
+}
+
+class MyAstVisitor extends GeneralizingAstVisitor {
+  @override
+  visitStringLiteral(StringLiteral node) {
+    final value = node.stringValue ?? "";
+    if (containsChinese(value)) {
+      print('Found->visitStringLiteral: $value');
+      addStringResult(value);
+    }
+    return super.visitStringLiteral(node);
+  }
+
+  @override
+  visitAdjacentStrings(AdjacentStrings node) {
+    int interpolationIndex = 0;
+    var result = '';
+    for (var string in node.strings) {
+      if (string is SimpleStringLiteral) {
+        result += string.value;
+      } else if (string is StringInterpolation) {
+        for (var element in string.elements) {
+          if (element is InterpolationString) {
+            result += element.value;
+          } else if (element is InterpolationExpression) {
+            result += '{{${interpolationIndex++}}}';
+          }
+        }
+      }
+    }
+    if (containsChinese(result)) {
+      print('Found->visitAdjacentStrings: $result');
+      addStringResult(result);
+    }
+    return super.visitAdjacentStrings(node);
+  }
+
+  @override
+  visitStringInterpolation(StringInterpolation node) {
+    int interpolationIndex = 0;
+    var result = '';
+    for (var element in node.elements) {
+      if (element is InterpolationString) {
+        result += element.value;
+      } else if (element is InterpolationExpression) {
+        result += '{{${interpolationIndex++}}}';
+      }
+    }
+    if (containsChinese(result)) {
+      print('Found->visitStringInterpolation: $result');
+      addStringResult(result);
+    }
+    return super.visitStringInterpolation(node);
+  }
+
+  @override
+  visitInterpolationExpression(InterpolationExpression node) {
+    int interpolationIndex = 0;
+    final value = '{{${interpolationIndex++}}}';
+    if (containsChinese(value)) {
+      print('Found->visitInterpolationExpression: $value');
+      addStringResult(value);
+    }
+    return super.visitInterpolationExpression(node);
+  }
+
+  bool containsChinese(String input) {
+    return RegExp(r'[\u4e00-\u9fa5]').hasMatch(input);
+  }
+
+  addStringResult(String value) {
+    stringResult.add(value);
+  }
+}

packages/sct_dev_tools/bin/sct_dev_tools.dart

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+import 'auto_l10n.dart';
+
+void main(List<String> args) {
+  switch (args.elementAtOrNull(0)) {
+    case "gen":
+      return AutoL10nTools().genL10nFiles();
+    default:
+     throw Exception("cmd not found");
+  }
+}

packages/sct_dev_tools/pubspec.yaml

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+name: sct_dev_tools
+description: A starting point for Dart libraries or applications.
+version: 1.0.0
+# repository: https://github.com/my_org/my_repo
+
+environment:
+  sdk: ^3.3.1
+
+# Add regular dependencies here.
+dependencies:
+  # path: ^1.8.0
+  analyzer: ^6.4.1
+  uuid: ^4.3.3
+
+dev_dependencies:
+  lints: ^3.0.0
+  test: ^1.24.0