Fix multipart BDD prefixes. #4515

atest/robot/keywords/optional_given_when_then.robot

@@ -46,7 +46,7 @@ Keyword can be used with and without prefix
     Should Be Equal  ${tc.kws[5].name}  Then we are in Berlin city
     Should Be Equal  ${tc.kws[6].name}  we are in Berlin city
 
-In user keyword name with normal arguments and localized prefixes
+Localized prefixes
     ${tc} =  Check Test Case  ${TEST NAME}
     Should Be Equal  ${tc.kws[0].name}  Oletetaan we don't drink too many beers
     Should Be Equal  ${tc.kws[1].name}  Kun we are in
@@ -55,5 +55,15 @@ In user keyword name with normal arguments and localized prefixes
     Should Be Equal  ${tc.kws[4].name}  Niin we get this feature ready today
     Should Be Equal  ${tc.kws[5].name}  ja we don't drink too many beers
 
+Prefix consisting of multiple words
+    ${tc} =  Check Test Case  ${TEST NAME}
+    Should Be Equal  ${tc.kws[0].name}  Étant donné multipart prefixes didn't work with RF 6.0
+    Should Be Equal  ${tc.kws[1].name}  Zakładając, że multipart prefixes didn't work with RF 6.0
+    Should Be Equal  ${tc.kws[2].name}  Diyelim ki multipart prefixes didn't work with RF 6.0
+    Should Be Equal  ${tc.kws[3].name}  Eğer ki multipart prefixes didn't work with RF 6.0
+    Should Be Equal  ${tc.kws[4].name}  O zaman multipart prefixes didn't work with RF 6.0
+    Should Be Equal  ${tc.kws[5].name}  В случай че multipart prefixes didn't work with RF 6.0
+    Should Be Equal  ${tc.kws[6].name}  Fie ca multipart prefixes didn't work with RF 6.0
+
 Prefix must be followed by space
     Check Test Case  ${TEST NAME}

atest/testdata/keywords/optional_given_when_then.robot

@@ -1,3 +1,9 @@
+Language: French
+Language: Polish
+Language: Turkish
+Language: Bulgarian
+Language: Romanian
+
 *** Settings ***
 Resource        resources/optional_given_when_then.robot
 
@@ -42,21 +48,29 @@ Keyword can be used with and without prefix
     Then we are in Berlin city
     we are in Berlin city
 
-In user keyword name with normal arguments and localized prefixes
+Localized prefixes
     Oletetaan we don't drink too many beers
     Kun we are in  museum  cafe
     mutta we don't drink too many beers
     Ja time  does  not  run  out
     Niin we get this feature ready today
     ja we don't drink too many beers
 
+Prefix consisting of multiple words
+    Étant donné multipart prefixes didn't work with RF 6.0
+    Zakładając, że multipart prefixes didn't work with RF 6.0
+    Diyelim ki multipart prefixes didn't work with RF 6.0
+    Eğer ki multipart prefixes didn't work with RF 6.0
+    O zaman multipart prefixes didn't work with RF 6.0
+    В случай че multipart prefixes didn't work with RF 6.0
+    Fie ca multipart prefixes didn't work with RF 6.0
+
 Prefix must be followed by space
     [Documentation]  FAIL
     ...    No keyword with name 'Givenwe don't drink too many beers' found. Did you mean:
     ...    ${SPACE*4}We Don't Drink Too Many Beers
     Givenwe don't drink too many beers
 
-
 *** Keywords ***
 We don't drink too many beers
     No Operation
@@ -83,3 +97,6 @@ We ${x} This ${thing} Implemented
 
 We Go To ${somewhere}
     Should Be Equal  ${somewhere}  walking tour
+
+Multipart prefixes didn't work with RF 6.0
+    No Operation

src/robot/running/namespace.py

@@ -295,20 +295,19 @@ def _get_runner(self, name):
         if not runner:
             runner = self._get_implicit_runner(name)
         if not runner:
-            runner = self._get_bdd_style_runner(name)
+            runner = self._get_bdd_style_runner(name, self.languages.bdd_prefixes)
         return runner
 
-    def _get_bdd_style_runner(self, name):
-        parts = name.split(maxsplit=1)
-        if len(parts) < 2:
-            return None
-        prefix, keyword = parts
-        if prefix.title() in self.languages.bdd_prefixes:
-            runner = self._get_runner(keyword)
-            if runner:
-                runner = copy.copy(runner)
-                runner.name = name
-                return runner
+    def _get_bdd_style_runner(self, name, prefixes):
+        parts = name.split()
+        for index in range(1, len(parts)):
+            prefix = ' '.join(parts[:index]).title()
+            if prefix in prefixes:
+                runner = self._get_runner(' '.join(parts[index:]))
+                if runner:
+                    runner = copy.copy(runner)
+                    runner.name = name
+                    return runner
         return None
 
     def _get_implicit_runner(self, name):