From ea656de889f7a7055dc887353228f76d1ac53e57 Mon Sep 17 00:00:00 2001
From: Ryo Igarashi <n33t5hin@gmail.com>
Date: Sat, 7 Mar 2026 13:49:16 +0900
Subject: [PATCH] fix!: Use object/named parameter for keep_whitespace

---
 README.md                         | 12 ++++++------
 ainu-utils-js/Cargo.toml          |  1 +
 ainu-utils-js/src/lib.rs          | 11 ++++++++---
 ainu-utils-js/tests/index.spec.js |  2 +-
 ainu-utils-python/ainu_utils.pyi  |  2 +-
 ainu-utils-python/src/lib.rs      |  1 +
 6 files changed, 18 insertions(+), 11 deletions(-)

diff --git a/README.md b/README.md
index 95a07a9..a140566 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ Tokenizes Ainu text into morphemes.
 ```py
 from ainu_utils import tokenize
 
-tokenize("irankarapte. e=iwanke ya?", False)
+tokenize("irankarapte. e=iwanke ya?", keep_whitespace=False)
 # => ["irankarapte", ".", "e=", "iwanke", "ya?"]
 ```
 
@@ -37,7 +37,7 @@ tokenize("irankarapte. e=iwanke ya?", False)
 ```js
 import { tokenize } from "ainu-utils";
 
-tokenize("irankarapte. e=iwanke ya?", false);
+tokenize("irankarapte. e=iwanke ya?", { keepWhitespace: false });
 // => ["irankarapte", ".", "e=", "iwanke", "ya?"]
 ```
 
@@ -57,9 +57,9 @@ to_kana("irankarapte. e=iwanke ya?")
 **JS:**
 
 ```js
-import { to_kana } from "ainu-utils";
+import { toKana } from "ainu-utils";
 
-to_kana("irankarapte. e=iwanke ya?");
+toKana("irankarapte. e=iwanke ya?");
 // => "イランカラㇷ゚テ。　エイワンケ　ヤ？"
 ```
 
@@ -79,9 +79,9 @@ number_to_words(91)
 **JS:**
 
 ```js
-import { number_to_words } from "ainu-utils";
+import { numberToWords } from "ainu-utils";
 
-number_to_words(91);
+numberToWords(91);
 // => "sine ikasma wan easiknehotne"
 ```
 
diff --git a/ainu-utils-js/Cargo.toml b/ainu-utils-js/Cargo.toml
index 1dd0426..f38e3f0 100644
--- a/ainu-utils-js/Cargo.toml
+++ b/ainu-utils-js/Cargo.toml
@@ -12,3 +12,4 @@ crate-type = ["cdylib", "rlib"]
 [dependencies]
 ainu-utils = { path = "../ainu-utils" }
 wasm-bindgen = "0.2.114"
+js-sys = "0.3"
diff --git a/ainu-utils-js/src/lib.rs b/ainu-utils-js/src/lib.rs
index 87ef8b6..072719c 100644
--- a/ainu-utils-js/src/lib.rs
+++ b/ainu-utils-js/src/lib.rs
@@ -1,17 +1,22 @@
 use ainu_utils::{kana, numbers, syllables, tokenizer};
+use js_sys::Reflect;
 use wasm_bindgen::prelude::*;
 
 #[wasm_bindgen]
-pub fn tokenize(text: &str, keep_whitespace: bool) -> Vec<String> {
+pub fn tokenize(text: &str, options: JsValue) -> Vec<String> {
+    let keep_whitespace = Reflect::get(&options, &JsValue::from_str("keepWhitespace"))
+        .ok()
+        .and_then(|v| v.as_bool())
+        .unwrap_or(false);
     tokenizer::tokenize(text, keep_whitespace)
 }
 
-#[wasm_bindgen]
+#[wasm_bindgen(js_name = toKana)]
 pub fn to_kana(text: &str) -> String {
     kana::to_kana(text)
 }
 
-#[wasm_bindgen]
+#[wasm_bindgen(js_name = numberToWords)]
 pub fn number_to_words(input: i32) -> String {
     numbers::parse(input).unwrap().to_string()
 }
diff --git a/ainu-utils-js/tests/index.spec.js b/ainu-utils-js/tests/index.spec.js
index 04fae7e..d20b09c 100644
--- a/ainu-utils-js/tests/index.spec.js
+++ b/ainu-utils-js/tests/index.spec.js
@@ -2,6 +2,6 @@ import { test, expect } from "vitest";
 import { tokenize } from "../dist/index.js";
 
 test("tokenize", () => {
-  const tokens = tokenize("irankarapte. e=iwanke ya?", false);
+  const tokens = tokenize("irankarapte. e=iwanke ya?", { keepWhitespace: false });
   expect(tokens).toEqual(["irankarapte", ".", "e=", "iwanke", "ya", "?"]);
 });
diff --git a/ainu-utils-python/ainu_utils.pyi b/ainu-utils-python/ainu_utils.pyi
index 8e99e3c..ce965a7 100644
--- a/ainu-utils-python/ainu_utils.pyi
+++ b/ainu-utils-python/ainu_utils.pyi
@@ -1,5 +1,5 @@
 # https://www.maturin.rs/project_layout#adding-python-type-information
-def tokenize(text: str, keep_whitespace: bool) -> list[str]: ...
+def tokenize(text: str, *, keep_whitespace: bool = False) -> list[str]: ...
 def to_kana(text: str) -> str: ...
 def number_to_words(number: int) -> str: ...
 def syllabicate(text: str) -> list[str]: ...
diff --git a/ainu-utils-python/src/lib.rs b/ainu-utils-python/src/lib.rs
index 679b083..b3c2d15 100644
--- a/ainu-utils-python/src/lib.rs
+++ b/ainu-utils-python/src/lib.rs
@@ -3,6 +3,7 @@ extern crate ainu_utils as ainu_utils_rust;
 use pyo3::prelude::*;
 
 #[pyfunction]
+#[pyo3(signature = (text, *, keep_whitespace = false))]
 fn tokenize(text: &str, keep_whitespace: bool) -> Vec<String> {
     ainu_utils_rust::tokenizer::tokenize(text, keep_whitespace)
 }