feat: add shared infiplot workspace packages

Signed-off-by: baizhi958216 <1475289190@qq.com>

packages/core/package.json

@@ -0,0 +1,21 @@
+{
+  "name": "@infiplot/core",
+  "version": "0.1.0",
+  "private": true,
+  "type": "module",
+  "exports": {
+    ".": {
+      "types": "./src/index.ts",
+      "default": "./src/index.ts"
+    }
+  },
+  "scripts": {
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@infiplot/types": "workspace:*"
+  },
+  "devDependencies": {
+    "typescript": "^6.0.3"
+  }
+}

packages/core/src/index.ts

@@ -0,0 +1,12 @@
+import type { Locale } from "@infiplot/types";
+
+const DEFAULT_LOCALE: Locale = "zh-CN";
+const SUPPORTED_LOCALES = new Set<Locale>(["en", "ja", "zh-CN"]);
+
+export function normalizeLocale(locale: string | undefined): Locale {
+  if (locale && SUPPORTED_LOCALES.has(locale as Locale)) {
+    return locale as Locale;
+  }
+
+  return DEFAULT_LOCALE;
+}

packages/core/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "noEmit": true
+  },
+  "include": ["src/**/*.ts"]
+}