fix: unicode chars were extracting with double slashes (#1035)

Author: semoal

packages/macro/src/macroJs.test.ts

@@ -87,7 +87,7 @@ describe("js macro", () => {
       expect(tokens).toEqual([
         {
           type: "text",
-          value: 'Message \\u0020',
+          value: 'Message \/u0020',
         },
       ])
     })

packages/macro/src/macroJs.ts

@@ -361,7 +361,7 @@ export default class MacroJs {
    */
   clearBackslashes(value: string) {
     // it's an unicode char so we should keep them
-    if (value.includes('\\u')) return value
+    if (value.includes('\\u')) return value.replace(removeExtraScapedLiterals, "\/u")
     // if not we replace the extra scaped literals
     return value.replace(removeExtraScapedLiterals, "`")
   }

packages/macro/src/macroJsx.ts

@@ -7,7 +7,7 @@ import { zip, makeCounter } from "./utils"
 import { ID, COMMENT, MESSAGE } from "./constants"
 
 const pluralRuleRe = /(_[\d\w]+|zero|one|two|few|many|other)/
-const removeExtraScapedLiterals = /(?:\\(.))/
+const removeExtraScapedLiterals = /(?:\\(.))/g
 const jsx2icuExactChoice = (value) =>
   value.replace(/_(\d+)/, "=$1").replace(/_(\w+)/, "$1")
 
@@ -365,7 +365,7 @@ export default class MacroJSX {
    * */
   clearBackslashes(value: string) {
     // it's an unicode char so we should keep them
-    if (value.includes('\\u')) return value
+    if (value.includes('\\u')) return value.replace(removeExtraScapedLiterals, "\/u")
     // if not we replace the extra scaped literals
     return value.replace(removeExtraScapedLiterals, "`")
   }