Refactoring: introduce function to check if a string is a generator expression

1 files changed, 9 insertions, 0 deletions

diff --git a/Source/cmGeneratorExpression.h b/Source/cmGeneratorExpression.h
index 8176d5c073..9c05f60c82 100644
--- a/Source/cmGeneratorExpression.h
+++ b/Source/cmGeneratorExpression.h
@@ -63,6 +63,15 @@ public:
 
   static std::string StripEmptyListElements(const std::string& input);
 
+  static inline bool StartsWithGeneratorExpression(const std::string& input)
+  {
+    return input.length() >= 2 && input[0] == '$' && input[1] == '<';
+  }
+  static inline bool StartsWithGeneratorExpression(const char* input)
+  {
+    return input != nullptr && input[0] == '$' && input[1] == '<';
+  }
+
 private:
   cmListFileBacktrace Backtrace;
 };