[PATCH] D44240: utils: add a helper class to lit for captured substitutions

[Saleem Abdulrasool via Phabricator via llvm-commits]

compnerd created this revision.
compnerd added a reviewer: zturner.
Herald added a subscriber: delcypher.

On Windows, if the substitution contains a back reference, it would 
removed due to the replacement of the escape character in lit.  Create a
helper class to avoid this which will simply ignore the replacement and
mark the substitution as having capture groups being referenced.


Repository:
  rL LLVM

https://reviews.llvm.org/D44240

Files:
  utils/lit/lit/TestingConfig.py


Index: utils/lit/lit/TestingConfig.py
===================================================================
--- utils/lit/lit/TestingConfig.py
+++ utils/lit/lit/TestingConfig.py
@@ -152,3 +152,16 @@
         else:
             return self.parent.root

+class SubstituteCaptures:
+    '''
+    Helper class to indicate that the substitutions contains backreferences.
+    '''
+    def __init__(self, substitution):
+        self.substitution = substitution
+
+    def replace(self, pattern, replacement):
+        return self.substitution
+
+    def __str__(self):
+        return self.substitution
+


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