fix: removed deprecated messageformat

README.md

@@ -555,7 +555,7 @@ __n('%s cat', 21) // --> 21 кошка
 
 ### i18n.__mf()
 
-Supports the advanced MessageFormat as provided by excellent [messageformat module](https://www.npmjs.com/package/messageformat). You should definetly head over to [messageformat.github.io](https://messageformat.github.io) for a guide to MessageFormat. i18n takes care of `new MessageFormat('en').compile(msg);` with the current `msg` loaded from it's json files and cache that complied fn in memory. So in short you might use it similar to `__()` plus extra object to accomplish MessageFormat's formatting. Ok, some examples:
+Supports the advanced MessageFormat as provided by excellent [messageformat module](https://www.npmjs.com/package/@messageformat/core). You should definetly head over to [messageformat.github.io](http://messageformat.github.io/messageformat/api/core/) for a guide to MessageFormat. i18n takes care of `new MessageFormat('en').compile(msg);` with the current `msg` loaded from it's json files and cache that complied fn in memory. So in short you might use it similar to `__()` plus extra object to accomplish MessageFormat's formatting. Ok, some examples:
 
 ```js
 // assume res is set to german
@@ -571,7 +571,7 @@ res.__mf('Hello {name}', { name: 'Marcus' }) // --> Hallo Marcus
 res.__mf('Hello {name}, how was your %s?', 'test', { name: 'Marcus' }) // --> Hallo Marcus, wie war dein test?
 
 // now check out a plural rule
-res.__mf('{N, plural, one{# cat} few{# cats} many{# cats} others{# cats}}', {
+res.__mf('{N, selectordinal, one{# cat} two{# cats} few{# cats} other{# cats}}', {
   N: 1
 })
 
@@ -612,7 +612,7 @@ But MessageFormat can handle more! You get ability to process:
 
 * Simple Variable Replacement (similar to mustache placeholders)
 * SelectFormat (ie. switch msg based on gender)
-* PluralFormat (see above and [ranges](#ranged-interval-support))
+* [PluralFormat](http://messageformat.github.io/messageformat/guide/#pluralformat) (see above and [ranges](#ranged-interval-support))
 
 Combinations of those give superpower, but should get tested well (contribute your use case, please!) on integration.
 

i18n.js

@@ -16,7 +16,7 @@ var debug = require('debug')('i18n:debug')
 var warn = require('debug')('i18n:warn')
 var error = require('debug')('i18n:error')
 var Mustache = require('mustache')
-var Messageformat = require('messageformat')
+var Messageformat = require('@messageformat/core')
 var MakePlural = require('make-plural')
 var parseInterval = require('math-interval-parser').default
 
@@ -328,8 +328,6 @@ const i18n = function I18n(_OPTS = false) {
     } else {
       mf = new Messageformat(targetLocale)
 
-      // @see https://messageformat.github.io/messageformat/MessageFormat#disablePluralKeyChecks__anchor
-      mf.disablePluralKeyChecks()
       mf.compiledFunctions = {}
       MessageformatInstanceForLocale[targetLocale] = mf
     }

package.json

@@ -26,10 +26,10 @@
     "lib": "."
   },
   "dependencies": {
+    "@messageformat/core": "^3.0.0",
     "debug": "^4.1.1",
     "make-plural": "^6.2.2",
     "math-interval-parser": "^2.0.1",
-    "messageformat": "^2.3.0",
     "mustache": "^4.0.1",
     "sprintf-js": "^1.1.2"
   },

test/i18n.mf.js

@@ -49,16 +49,13 @@ describe('parsing Messageformat phrases', function () {
 
   it('should work with plurals', function () {
     var msg = 'In {lang} there {NUM, plural,'
-    msg += 'zero{are zero for #}'
-    msg += 'one{is one for #}'
-    msg += 'two{is two for #}'
-    msg += 'few{are a few for #}'
-    msg += 'many{are many for #}'
+    msg += '=0{are zero for #}'
+    msg += 'one {is one for #}'
     msg += 'other{others for #}}'
 
     mfTest.setLocale('en')
     should.equal(
-      'In english there others for 0',
+      'In english there are zero for 0',
       mfTest.__mf(msg, { NUM: 0, lang: 'english' })
     )
     should.equal(
@@ -88,7 +85,7 @@ describe('parsing Messageformat phrases', function () {
 
     mfTest.setLocale('de')
     should.equal(
-      'In german there others for 0',
+      'In german there are zero for 0',
       mfTest.__mf(msg, { NUM: 0, lang: 'german' })
     )
     should.equal(
@@ -118,7 +115,7 @@ describe('parsing Messageformat phrases', function () {
 
     mfTest.setLocale('fr')
     should.equal(
-      'In french there is one for 0',
+      'In french there are zero for 0',
       mfTest.__mf(msg, { NUM: 0, lang: 'french' })
     )
     should.equal(
@@ -148,31 +145,31 @@ describe('parsing Messageformat phrases', function () {
 
     mfTest.setLocale('ru')
     should.equal(
-      'In russian there are many for 0',
+      'In russian there are zero for 0',
       mfTest.__mf(msg, { NUM: 0, lang: 'russian' })
     )
     should.equal(
       'In russian there is one for 1',
       mfTest.__mf(msg, { NUM: 1, lang: 'russian' })
     )
     should.equal(
-      'In russian there are a few for 2',
+      'In russian there others for 2',
       mfTest.__mf(msg, { NUM: 2, lang: 'russian' })
     )
     should.equal(
-      'In russian there are a few for 3',
+      'In russian there others for 3',
       mfTest.__mf(msg, { NUM: 3, lang: 'russian' })
     )
     should.equal(
-      'In russian there are a few for 4',
+      'In russian there others for 4',
       mfTest.__mf(msg, { NUM: 4, lang: 'russian' })
     )
     should.equal(
-      'In russian there are many for 5',
+      'In russian there others for 5',
       mfTest.__mf(msg, { NUM: 5, lang: 'russian' })
     )
     should.equal(
-      'In russian there are many for 6',
+      'In russian there others for 6',
       mfTest.__mf(msg, { NUM: 6, lang: 'russian' })
     )
     should.equal(

test/i18n.writenewPhrase.js

@@ -153,13 +153,9 @@ describe('when i18n gets a new phrase', function () {
 
   it('should add translations with messageformat by use of __mf()', function (done) {
     var msg = 'In {language} there {N, plural,'
-    msg += 'zero{are zero for # }'
-    msg += 'one{is one for # }'
-    msg += 'two{is two for # }'
-    msg += 'few{are a few for # }'
-    msg += 'many{are many for # }'
-    msg += 'other{others for # }'
-    msg += '}'
+    msg += '=0{are zero for #}'
+    msg += 'one {is one for #}'
+    msg += 'other{others for #}}'
 
     // this should just add that string
     TestScope.__mf(msg, { N: 1 })