fix: Message.mention() (#1661)

src/config.ts

@@ -229,6 +229,8 @@ export function qrCodeForChatie (): FileBox {
 // http://jkorpela.fi/chars/spaces.html
 // String.fromCharCode(8197)
 export const FOUR_PER_EM_SPACE = String.fromCharCode(0x2005)
+// mobile: \u2005, PC、mac: \u0020
+export const AT_SEPRATOR_REGEX = /[\u2005\u0020]/
 
 export function qrcodeValueToImageUrl (qrcodeValue: string): string {
   return [

src/user/message.ts

@@ -33,7 +33,7 @@ import {
   Accessory,
 }                       from '../accessory'
 import {
-  FOUR_PER_EM_SPACE,
+  AT_SEPRATOR_REGEX,
   log,
   Raven,
 }                       from '../config'
@@ -599,7 +599,7 @@ export class Message extends Accessory implements Sayable {
 
     // define magic code `8197` to identify @xxx
     // const AT_SEPRATOR = String.fromCharCode(8197)
-    const AT_SEPRATOR = FOUR_PER_EM_SPACE
+    const AT_SEPRATOR = AT_SEPRATOR_REGEX
 
     const atList = this.text().split(AT_SEPRATOR)
     // console.log('atList: ', atList)