diff --git a/Cargo.lock b/Cargo.lock
index 4d33664b5f..3b7e70c186 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -162,9 +162,9 @@ dependencies = [
[[package]]
name = "async-trait"
-version = "0.1.79"
+version = "0.1.80"
source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a507401cad91ec6a857ed5513a2073c82a9b9048762b885bb98655b306964681"
+checksum = "c6fa2087f2753a7da8cc1c0dbfcf89579dd57458e36769de5ac750b4671737ca"
dependencies = [
"proc-macro2",
"quote",
@@ -204,6 +204,7 @@ dependencies = [
"parse-display",
"pretty_assertions",
"rand",
+ "regex",
"schemars",
"sea-orm",
"serde",
diff --git a/Cargo.toml b/Cargo.toml
index 2c208fe845..993fa06924 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ napi = { version = "2.16.2", default-features = false }
napi-derive = "2.16.2"
napi-build = "2.1.2"
-async-trait = "0.1.79"
+async-trait = "0.1.80"
basen = "0.1.0"
cfg-if = "1.0.0"
chrono = "0.4.37"
@@ -20,8 +20,9 @@ once_cell = "1.19.0"
parse-display = "0.9.0"
pretty_assertions = "1.4.0"
proc-macro2 = "1.0.79"
-quote = "1.0.35"
+quote = "1.0.36"
rand = "0.8.5"
+regex = "1.10.4"
schemars = "0.8.16"
sea-orm = "0.12.15"
serde = "1.0.197"
diff --git a/packages/backend-rs/Cargo.toml b/packages/backend-rs/Cargo.toml
index 12762ec101..48bdebc470 100644
--- a/packages/backend-rs/Cargo.toml
+++ b/packages/backend-rs/Cargo.toml
@@ -26,6 +26,7 @@ jsonschema = { workspace = true }
once_cell = { workspace = true }
parse-display = { workspace = true }
rand = { workspace = true }
+regex = { workspace = true }
schemars = { workspace = true, features = ["chrono"] }
sea-orm = { workspace = true, features = ["sqlx-postgres", "runtime-tokio-rustls"] }
serde = { workspace = true, features = ["derive"] }
diff --git a/packages/backend-rs/index.js b/packages/backend-rs/index.js
index 723a6a7e48..7b66fdb6de 100644
--- a/packages/backend-rs/index.js
+++ b/packages/backend-rs/index.js
@@ -310,8 +310,9 @@ if (!nativeBinding) {
throw new Error(`Failed to load native binding`)
}
-const { AntennaSrcEnum, MutedNoteReasonEnum, NoteVisibilityEnum, NotificationTypeEnum, PageVisibilityEnum, PollNotevisibilityEnum, RelayStatusEnum, UserEmojimodpermEnum, UserProfileFfvisibilityEnum, UserProfileMutingnotificationtypesEnum, initIdGenerator, getTimestamp, genId, secureRndstr, IdConvertType, convertId } = nativeBinding
+const { nyaify, AntennaSrcEnum, MutedNoteReasonEnum, NoteVisibilityEnum, NotificationTypeEnum, PageVisibilityEnum, PollNotevisibilityEnum, RelayStatusEnum, UserEmojimodpermEnum, UserProfileFfvisibilityEnum, UserProfileMutingnotificationtypesEnum, initIdGenerator, getTimestamp, genId, secureRndstr, IdConvertType, convertId } = nativeBinding
+module.exports.nyaify = nyaify
module.exports.AntennaSrcEnum = AntennaSrcEnum
module.exports.MutedNoteReasonEnum = MutedNoteReasonEnum
module.exports.NoteVisibilityEnum = NoteVisibilityEnum
diff --git a/packages/backend-rs/src/lib.rs b/packages/backend-rs/src/lib.rs
index fcb2323380..06a09e64ac 100644
--- a/packages/backend-rs/src/lib.rs
+++ b/packages/backend-rs/src/lib.rs
@@ -2,6 +2,7 @@ pub use macro_rs::napi as export;
pub mod database;
pub mod macros;
+pub mod misc;
pub mod model;
pub mod util;
diff --git a/packages/backend-rs/src/misc/mod.rs b/packages/backend-rs/src/misc/mod.rs
new file mode 100644
index 0000000000..6c5d7c4f2e
--- /dev/null
+++ b/packages/backend-rs/src/misc/mod.rs
@@ -0,0 +1 @@
+pub mod nyaify;
diff --git a/packages/backend-rs/src/misc/nyaify.rs b/packages/backend-rs/src/misc/nyaify.rs
new file mode 100644
index 0000000000..9ce25b8b4a
--- /dev/null
+++ b/packages/backend-rs/src/misc/nyaify.rs
@@ -0,0 +1,96 @@
+use once_cell::sync::Lazy;
+use regex::{Captures, Regex};
+
+#[cfg_attr(feature = "napi", crate::export)]
+pub fn nyaify(text: &str, lang: Option<&str>) -> String {
+ let mut to_return = text.to_owned();
+
+ {
+ static RE: Lazy<Regex> =
+ Lazy::new(|| Regex::new(r"(?i-u)(non)([bcdfghjklmnpqrstvwxyz])").unwrap());
+ to_return = RE
+ .replace_all(&to_return, |caps: &Captures<'_>| {
+ format!(
+ "{}{}",
+ match &caps[1] {
+ "non" => "nyan",
+ "Non" => "Nyan",
+ "NON" => "NYAN",
+ _ => &caps[1],
+ },
+ &caps[2]
+ )
+ })
+ .to_string();
+ }
+
+ {
+ static RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"다([.．。…?？!！\s]|$)").unwrap());
+ to_return = RE.replace_all(&to_return, r"다냥$1").to_string();
+ }
+
+ {
+ static RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"야([?？\s]|$)").unwrap());
+ to_return = RE.replace_all(&to_return, r"냥$1").to_string();
+ }
+
+ {
+ static RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"([나-낳])").unwrap());
+ to_return = RE
+ .replace_all(&to_return, |caps: &Captures<'_>| {
+ format!(
+ "{}",
+ char::from_u32(
+ caps[0].chars().next().unwrap() as u32 + 56 /* = '냐' - '나' */
+ )
+ .unwrap()
+ )
+ })
+ .to_string();
+ }
+
+ if lang.is_some() && lang.unwrap().starts_with("zh") {
+ static RE: Lazy<Regex> = Lazy::new(|| Regex::new(r"[妙庙描渺瞄秒苗藐廟]").unwrap());
+ to_return = RE.replace_all(&to_return, "喵").to_string();
+ }
+
+ let simple_rules = [
+ ("な", "にゃ"),
+ ("ナ", "ニャ"),
+ ("ﾅ", "ﾆｬ"),
+ ("na", "nya"),
+ ("NA", "NYA"),
+ ("Na", "Nya"),
+ ("morning", "mornyan"),
+ ("Morning", "Mornyan"),
+ ("MORNING", "MORNYAN"),
+ ("everyone", "everynyan"),
+ ("Everyone", "Everynyan"),
+ ("EVERYONE", "EVERYNYAN"),
+ ("να", "νια"),
+ ("ΝΑ", "ΝΙΑ"),
+ ("Να", "Νια"),
+ ];
+
+ simple_rules.into_iter().for_each(|(from, to)| {
+ to_return = to_return.replace(from, to);
+ });
+
+ to_return
+}
+
+#[cfg(test)]
+mod unit_test {
+ use super::nyaify;
+
+ #[test]
+ fn can_nyaify() {
+ assert_eq!(nyaify("Hello everyone!", Some("en")), "Hello everynyan!");
+ assert_eq!(nyaify("Nonbinary people", None), "Nyanbinyary people");
+ assert_eq!(nyaify("1分鐘是60秒", Some("zh-TW")), "1分鐘是60喵");
+ assert_eq!(nyaify("1分間は60秒です", Some("ja-JP")), "1分間は60秒です");
+ assert_eq!(nyaify("あなたは誰ですか", None), "あにゃたは誰ですか");
+ assert_eq!(nyaify("Ναυτικός", Some("el-GR")), "Νιαυτικός");
+ assert_eq!(nyaify("일어나다", None), "일어냐다냥");
+ }
+}
diff --git a/packages/backend/src/misc/nyaify.ts b/packages/backend/src/misc/nyaify.ts
deleted file mode 100644
index 5829461779..0000000000
--- a/packages/backend/src/misc/nyaify.ts
+++ /dev/null
@@ -1,33 +0,0 @@
-export function nyaify(text: string, lang?: string): string {
- text = text
- // ja-JP
- .replaceAll("な", "にゃ")
- .replaceAll("ナ", "ニャ")
- .replaceAll("ﾅ", "ﾆｬ")
- // en-US
- .replaceAll("na", "nya")
- .replaceAll("Na", "Nya")
- .replaceAll("NA", "NYA")
- .replace(/(?<=morn)ing/gi, (x) => (x === "ING" ? "YAN" : "yan"))
- .replace(/(?<=every)one/gi, (x) => (x === "ONE" ? "NYAN" : "nyan"))
- .replace(/non(?=[bcdfghjklmnpqrstvwxyz])/gi, (x) =>
- x === "NON" ? "NYAN" : "nyan",
- )
- // ko-KR
- .replace(/[나-낳]/g, (match) =>
- String.fromCharCode(
- match.charCodeAt(0)! + "냐".charCodeAt(0) - "나".charCodeAt(0),
- ),
- )
- .replace(/(다$)|(다(?=\.))|(다(?= ))|(다(?=!))|(다(?=\?))/gm, "다냥")
- .replace(/(야(?=\?))|(야$)|(야(?= ))/gm, "냥")
- // el-GR
- .replaceAll("να", "νια")
- .replaceAll("ΝΑ", "ΝΙΑ")
- .replaceAll("Να", "Νια");
-
- // zh-CN, zh-TW
- if (lang === "zh") text = text.replace(/(妙|庙|描|渺|瞄|秒|苗|藐|廟)/g, "喵");
-
- return text;
-}
diff --git a/packages/backend/src/models/repositories/note.ts b/packages/backend/src/models/repositories/note.ts
index 2921f68be3..ed6ecc4a5c 100644
--- a/packages/backend/src/models/repositories/note.ts
+++ b/packages/backend/src/models/repositories/note.ts
@@ -12,7 +12,7 @@ import {
Channels,
} from "../index.js";
import type { Packed } from "@/misc/schema.js";
-import { nyaify } from "@/misc/nyaify.js";
+import { nyaify } from "backend-rs";
import { awaitAll } from "@/prelude/await-all.js";
import { convertReactions, decodeReaction } from "@/misc/reaction-lib.js";
import type { NoteReaction } from "@/models/entities/note-reaction.js";