string() Refactoring: creates an helper for REGEX REPLACE

1 files changed, 69 insertions, 0 deletions

diff --git a/Source/cmStringReplaceHelper.h b/Source/cmStringReplaceHelper.h
new file mode 100644
index 0000000..938325a
--- /dev/null
+++ b/Source/cmStringReplaceHelper.h
@@ -0,0 +1,69 @@
+/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+   file Copyright.txt or https://cmake.org/licensing for details.  */
+#ifndef cmStringReplaceHelper_h
+#define cmStringReplaceHelper_h
+
+#include "cmsys/RegularExpression.hxx"
+
+#include <string>
+#include <vector>
+
+class cmMakefile;
+
+class cmStringReplaceHelper
+{
+public:
+  cmStringReplaceHelper(const std::string& regex,
+                        const std::string& replace_expr,
+                        cmMakefile* makefile = nullptr);
+
+  bool IsRegularExpressionValid() const
+  {
+    return this->RegularExpression.is_valid();
+  }
+  bool IsReplaceExpressionValid() const
+  {
+    return this->ValidReplaceExpression;
+  }
+
+  bool Replace(const std::string& input, std::string& output);
+
+  const std::string& GetError() { return this->ErrorString; }
+
+private:
+  class RegexReplacement
+  {
+  public:
+    RegexReplacement(const char* s)
+      : Number(-1)
+      , Value(s)
+    {
+    }
+    RegexReplacement(const std::string& s)
+      : Number(-1)
+      , Value(s)
+    {
+    }
+    RegexReplacement(int n)
+      : Number(n)
+      , Value()
+    {
+    }
+    RegexReplacement() {}
+
+    int Number;
+    std::string Value;
+  };
+
+  void ParseReplaceExpression();
+
+  std::string ErrorString;
+  std::string RegExString;
+  cmsys::RegularExpression RegularExpression;
+  bool ValidReplaceExpression = true;
+  std::string ReplaceExpression;
+  std::vector<RegexReplacement> Replacements;
+  cmMakefile* Makefile = nullptr;
+};
+
+#endif