X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/e74117f172e29e8a980e2c9de929ad50d3769150..68cc9786d3db15339b9748582e43876392fd4122:/blib2to3/pgen2/driver.py

diff --git a/blib2to3/pgen2/driver.py b/blib2to3/pgen2/driver.py
index cbc58e7..5cdd2e5 100644
--- a/blib2to3/pgen2/driver.py
+++ b/blib2to3/pgen2/driver.py
@@ -69,11 +69,22 @@ class Driver(object):
             if debug:
                 self.logger.debug("%s %r (prefix=%r)",
                                   token.tok_name[type], value, prefix)
+            if type in {token.INDENT, token.DEDENT}:
+                _prefix = prefix
+                prefix = ""
             if p.addtoken(type, value, (prefix, start)):
                 if debug:
                     self.logger.debug("Stop.")
                 break
             prefix = ""
+            if type == token.INDENT:
+                if _prefix.startswith(value):
+                    # Don't double-indent.  Since we're delaying the prefix that
+                    # would normally belong to INDENT, we need to put the value
+                    # at the end versus at the beginning.
+                    _prefix = _prefix[len(value):] + value
+            if type in {token.INDENT, token.DEDENT}:
+                prefix = _prefix
             lineno, column = end
             if value.endswith("\n"):
                 lineno += 1