fix: dot-notation now respects strip-dashed

lib/yargs-parser.ts

@@ -414,9 +414,26 @@ export class YargsParser {
     })
 
     if (configuration['camel-case-expansion'] && configuration['strip-dashed']) {
-      Object.keys(argv).filter(key => key !== '--' && key.includes('-')).forEach(key => {
-        delete argv[key]
-      })
+      if (configuration['dot-notation']) {
+        Object.keys(flags.aliases)
+          .filter(key => key !== '--' && key.includes('-'))
+          .map(key => key.split('.'))
+          .forEach(keyPath => {
+            var obj = argv
+            for (const subkey of keyPath) {
+              if (subkey.includes('-')) {
+                delete obj[subkey]
+                break
+              } else {
+                obj = obj[subkey]
+              }
+            }
+          })
+      } else {
+        Object.keys(argv).filter(key => key !== '--' && key.includes('-')).forEach(key => {
+          delete argv[key]
+        })
+      }
     }
 
     if (configuration['strip-aliased']) {

test/yargs-parser.cjs

@@ -3636,6 +3636,32 @@ describe('yargs-parser', function () {
         'test-value': 1
       })
     })
+
+    // See: https://github.com/yargs/yargs-parser/issues/223
+    it('strip-dashed removes subkeys made by dot-notation', function () {
+      var argv = parser(['--dashed-will-be-stripped', '--here.it-will-too',
+        '--foo.not-dashed.also-not-dashed', '--foo.definitley-not-dashed'], {
+        configuration: {
+          'strip-dashed': true
+        }
+      })
+      argv.should.not.have.property('dashed-will-be-stripped')
+      argv.here.should.not.have.property('it-will-too')
+      argv.here.should.have.property('itWillToo')
+      argv.foo.should.not.have.property('not-dashed')
+      argv.foo.notDashed.should.not.have.property('also-not-dashed')
+      argv.foo.notDashed.should.have.property('alsoNotDashed')
+    })
+
+    it('strip-dashed removes dotted keys with dot-notation disabled', function () {
+      var argv = parser(['--foo.not-dashed'], {
+        configuration: {
+          'strip-dashed': true,
+          'dot-notation': false
+        }
+      })
+      argv.should.not.have.property('foo.not-dashed')
+    })
   })
 
   describe('prototype collisions', () => {