Languages: add Finnish language

packages/core/src/locales.ts

@@ -1,5 +1,6 @@
 import az from "./locales/az.js";
 import en from "./locales/en.js";
 import es from "./locales/es.js";
+import fi from "./locales/fi.js";
 
-export { az, es, en };
+export { az, es, en, fi };

packages/core/src/locales/fi.ts

@@ -0,0 +1,197 @@
+import type { $ZodStringFormats } from "../checks.js";
+import type * as errors from "../errors.js";
+import type { $ZodTypeDef } from "../schemas.js";
+import * as util from "../util.js";
+
+const Sizable: Record<string, { unit: string; subject: string }> = {
+  string: { unit: "merkkiä", subject: "merkkijonon" },
+  file: { unit: "tavua", subject: "tiedoston" },
+  array: { unit: "alkiota", subject: "listan" },
+  set: { unit: "alkiota", subject: "joukon" },
+  number: { unit: "", subject: "luvun" },
+  bigint: { unit: "", subject: "suuren kokonaisluvun" },
+  int: { unit: "", subject: "kokonaisluvun" },
+  date: { unit: "", subject: "päivämäärän" },
+};
+
+function getSizing(origin: string): { unit: string; subject: string } | null {
+  return Sizable[origin] ?? null;
+}
+
+const TypeNames: { [k in $ZodTypeDef["type"] | (string & {})]?: string } = {
+  string: "merkkijono",
+  number: "luku",
+  boolean: "totuusarvo",
+  bigint: "suuri kokonaisluku",
+  symbol: "symboli",
+  null: "tyhjä",
+  undefined: "määrittelemätön",
+  date: "päivämäärä",
+  object: "objekti",
+  file: "tiedosto",
+  array: "lista",
+  map: "hakemisto",
+  set: "joukko",
+  nan: "epäluku",
+  promise: "lupaus",
+};
+
+function getTypeName(type: string): string {
+  return TypeNames[type] ?? type;
+}
+
+export const parsedType = (data: any): string => {
+  const t = typeof data;
+
+  switch (t) {
+    case "number": {
+      return Number.isNaN(data) ? "epäluku" : "luku";
+    }
+    case "bigint": {
+      return Number.isNaN(data) ? "epäluku" : "suuri kokonaisluku";
+    }
+    case "boolean": {
+      return "totuusarvo";
+    }
+    case "symbol": {
+      return "symboli";
+    }
+    case "function": {
+      return "funktio";
+    }
+    case "string": {
+      return "merkkijono";
+    }
+    case "undefined": {
+      return "määrittelemätön";
+    }
+    case "object": {
+      if (Array.isArray(data)) {
+        return "lista";
+      }
+      if (data === null) {
+        return "tyhjä";
+      }
+      if (data instanceof Date) {
+        return "päivämäärä";
+      }
+      if (data instanceof Map) {
+        return "hakemisto";
+      }
+      if (data instanceof Set) {
+        return "joukko";
+      }
+      if (data instanceof File) {
+        return "tiedosto";
+      }
+      if (data instanceof Promise) {
+        return "lupaus";
+      }
+
+      if (Object.getPrototypeOf(data) !== Object.prototype && data.constructor) {
+        return data.constructor.name;
+      }
+
+      return "objekti";
+    }
+    default: {
+      return t;
+    }
+  }
+};
+
+const Nouns: {
+  [k in $ZodStringFormats | (string & {})]?: string;
+} = {
+  regex: "regex-lauseke",
+  email: "sähköpostiosoite",
+  url: "URL-osoite",
+  emoji: "emoji",
+  uuid: "UUID",
+  uuidv4: "UUIDv4",
+  uuidv6: "UUIDv6",
+  nanoid: "nanoid",
+  guid: "GUID",
+  cuid: "cuid",
+  cuid2: "cuid2",
+  ulid: "ULID",
+  xid: "XID",
+  ksuid: "KSUID",
+  datetime: "ISO-aikaleima",
+  date: "ISO-päivämäärä",
+  time: "ISO-aika",
+  duration: "ISO-kesto",
+  ipv4: "IPv4-osoite",
+  ipv6: "IPv6-osoite",
+  cidrv4: "IPv4-alue",
+  cidrv6: "IPv6-alue",
+  base64: "base64-koodattu merkkijono",
+  base64url: "base64url-koodattu merkkijono",
+  json_string: "JSON-merkkijono",
+  e164: "E.164-luku",
+  jwt: "JWT",
+  template_literal: "templaattimerkkijono",
+};
+
+const InOrigin: { [k in string & {}]?: string } = {
+  record: "tietueessa",
+  map: "hakemistossa",
+  set: "joukossa",
+};
+
+const error: errors.$ZodErrorMap = (issue) => {
+  switch (issue.code) {
+    case "invalid_type":
+      return `Virheellinen tyyppi: täytyy olla ${getTypeName(issue.expected)}, oli ${parsedType(issue.input)}`;
+    case "invalid_value":
+      if (issue.values.length === 1)
+        return `Virheellinen syöte: täytyy olla ${util.stringifyPrimitive(issue.values[0])}`;
+      return `Virheellinen valinta: täytyy olla yksi seuraavista: ${util.joinValues(issue.values, "|")}`;
+    case "too_big": {
+      const adj = issue.inclusive ? "<=" : "<";
+      const sizing = getSizing(issue.origin);
+      if (sizing) {
+        return `Liian suuri: ${sizing.subject} täytyy olla ${adj}${issue.maximum.toString()} ${sizing.unit}`.trim();
+      }
+      return `Liian suuri: ${issue.origin ?? "arvon"} täytyy olla ${adj}${issue.maximum.toString()}`;
+    }
+    case "too_small": {
+      const adj = issue.inclusive ? ">=" : ">";
+      const sizing = getSizing(issue.origin);
+      if (sizing) {
+        return `Liian pieni: ${sizing.subject} täytyy olla ${adj}${issue.minimum.toString()} ${sizing.unit}`.trim();
+      }
+      return `Liian pieni: ${issue.origin ?? "arvon"} täytyy olla ${adj}${issue.minimum.toString()}`;
+    }
+    case "invalid_format": {
+      const _issue = issue as errors.$ZodStringFormatIssues;
+      if (_issue.format === "starts_with") return `Virheellinen merkkijono: alussa täytyy olla "${_issue.prefix}"`;
+      if (_issue.format === "ends_with") return `Virheellinen merkkijono: lopussa täytyy olla "${_issue.suffix}"`;
+      if (_issue.format === "includes") return `Virheellinen merkkijono: täytyy sisältää "${_issue.includes}"`;
+      if (_issue.format === "regex") {
+        return `Virheellinen merkkijono: täytyy vastata regex-lauseketta ${_issue.pattern}`;
+      }
+      return `Virheellinen ${Nouns[_issue.format] ?? issue.format}`;
+    }
+    case "not_multiple_of":
+      return `Virheellinen luku: täytyy olla luvun ${issue.divisor} monikerta`;
+    case "unrecognized_keys":
+      return `${issue.keys.length > 1 ? "Tuntemattomat avaimet" : "Tuntematon avain"}: ${util.joinValues(issue.keys, ", ")}`;
+    case "invalid_key":
+      return `Virheellinen avain ${InOrigin[issue.origin] ?? issue.origin}`;
+    case "invalid_union":
+      return "Virheellinen yhdiste";
+    case "invalid_element":
+      return `Virheellinen arvo ${InOrigin[issue.origin] ?? issue.origin}`;
+    default:
+      return `Virheellinen syöte`;
+  }
+};
+
+export { error };
+
+export default function (): { localeError: errors.$ZodErrorMap } {
+  return {
+    localeError: error,
+  };
+}

packages/docs/content/error-customization.mdx

@@ -8,9 +8,9 @@ import { Tabs, Tab } from 'fumadocs-ui/components/tabs';
 
 In Zod, validation errors are surfaced as instances of the `z.core.$ZodError` class.
 
-> The `zod` package uses a subclass of this called `ZodError` that implements some additional convenience methods. 
+> The `zod` package uses a subclass of this called `ZodError` that implements some additional convenience methods.
 
-Instances of `$ZodError` contain an `.issues` property containing a human-readable `message` and additional structured information about each encountered validation issue. 
+Instances of `$ZodError` contain an `.issues` property containing a human-readable `message` and additional structured information about each encountered validation issue.
 
 
 <Tabs groupId="lib" items={["zod", "@zod/mini"]}>
@@ -81,7 +81,7 @@ z.string({ error: "Bad!"}).parse(12);
 //       expected: 'string',
 //       code: 'invalid_type',
 //       path: [],
-//       message: 'Bad!'   <-- 👀 custom error message 
+//       message: 'Bad!'   <-- 👀 custom error message
 //     }
 //   ]
 // }
@@ -238,7 +238,7 @@ result.error.issues;
 // [{ message: "highest priority", ... }]
 ```
 
-The `iss` object is a [discriminated union](https://www.typescriptlang.org/docs/handbook/2/narrowing.html#discriminated-unions) of all possible issue types. Use the `code` property to discriminate between them. 
+The `iss` object is a [discriminated union](https://www.typescriptlang.org/docs/handbook/2/narrowing.html#discriminated-unions) of all possible issue types. Use the `code` property to discriminate between them.
 
 > For a breakdown of all Zod issue codes, see the [`@zod/core`](/packages/core#issue-types) documentation.
 
@@ -269,7 +269,7 @@ z.config({
 });
 ```
 
-Global error messages have *lower precedence* than schema-level or per-parse error messages. 
+Global error messages have *lower precedence* than schema-level or per-parse error messages.
 
 The `iss` object is a [discriminated union](https://www.typescriptlang.org/docs/handbook/2/narrowing.html#discriminated-unions) of all possible issue types. Use the `code` property to discriminate between them.
 
@@ -340,3 +340,4 @@ The following locales are available:
 
 - `az` — Azerbaijani
 - `en` — English
+- `fi` — Finnish