fixes issue #254 single question mark not dumped with quotes0.15.75

introduced re issue #62 for version 0.15.27
test in ruamel.yaml.data/special/single_indicator.yaml


*When this change indeed resolves your problem, please **Close** this issue*.
*(You can do so using the WorkFlow pull-down (close to the top right of this page))*

1 files changed, 2 insertions, 0 deletions

diff --git a/emitter.py b/emitter.py
index 942eced..c410f2e 100644
--- a/emitter.py
+++ b/emitter.py
@@ -1024,6 +1024,8 @@ class Emitter(object):
                 if ch in u'?:':  # ToDo
                     if self.serializer.use_version == (1, 1):
                         flow_indicators = True
+                    elif len(scalar) == 1:  # single character
+                        flow_indicators = True
                     if followed_by_whitespace:
                         block_indicators = True
                 if ch == u'-' and followed_by_whitespace: