all: use yield from (#1537)

1 files changed, 9 insertions, 17 deletions

diff --git a/pygments/lexers/robotframework.py b/pygments/lexers/robotframework.py
index eab5b0f2..cd808292 100644
--- a/pygments/lexers/robotframework.py
+++ b/pygments/lexers/robotframework.py
@@ -98,16 +98,13 @@ class VariableTokenizer:
         before = string[:var.start]
         yield before, orig_token
         yield var.identifier + '{', SYNTAX
-        for value, token in self.tokenize(var.base, VARIABLE):
-            yield value, token
+        yield from self.tokenize(var.base, VARIABLE)
         yield '}', SYNTAX
         if var.index:
             yield '[', SYNTAX
-            for value, token in self.tokenize(var.index, VARIABLE):
-                yield value, token
+            yield from self.tokenize(var.index, VARIABLE)
             yield ']', SYNTAX
-        for value, token in self.tokenize(string[var.end:], orig_token):
-            yield value, token
+        yield from self.tokenize(string[var.end:], orig_token)
 
 
 class RowTokenizer:
@@ -138,9 +135,8 @@ class RowTokenizer:
             elif index == 0 and value.startswith('*'):
                 self._table = self._start_table(value)
                 heading = True
-            for value, token in self._tokenize(value, index, commented,
-                                               separator, heading):
-                yield value, token
+            yield from self._tokenize(value, index, commented,
+                                      separator, heading)
         self._table.end_row()
 
     def _start_table(self, header):
@@ -155,8 +151,7 @@ class RowTokenizer:
         elif heading:
             yield value, HEADING
         else:
-            for value, token in self._table.tokenize(value, index):
-                yield value, token
+            yield from self._table.tokenize(value, index)
 
 
 class RowSplitter:
@@ -166,14 +161,12 @@ class RowSplitter:
     def split(self, row):
         splitter = (row.startswith('| ') and self._split_from_pipes
                     or self._split_from_spaces)
-        for value in splitter(row):
-            yield value
+        yield from splitter(row)
         yield '\n'
 
     def _split_from_spaces(self, row):
         yield ''  # Start with (pseudo)separator similarly as with pipes
-        for value in self._space_splitter.split(row):
-            yield value
+        yield from self._space_splitter.split(row)
 
     def _split_from_pipes(self, row):
         _, separator, rest = self._pipe_splitter.split(row, 1)
@@ -333,8 +326,7 @@ class _Table:
             self._tokenizer = self._prev_tokenizer
             yield value, SYNTAX
         else:
-            for value_and_token in self._tokenize(value, index):
-                yield value_and_token
+            yield from self._tokenize(value, index)
         self._prev_values_on_row.append(value)
 
     def _continues(self, value, index):