1 files changed, 83 insertions, 0 deletions
diff --git a/Source/Utility/commonregex.cpp b/Source/Utility/commonregex.cpp
new file mode 100644
index 00000000..6c70e3e7
--- /dev/null
+++ b/Source/Utility/commonregex.cpp
@@ -0,0 +1,83 @@
+//-----------------------------------------------------------------------------
+//           Name: commonregex.cpp
+//      Developer: Wolfire Games LLC
+//    Description:
+//        License: Read below
+//-----------------------------------------------------------------------------
+//
+//   Copyright 2022 Wolfire Games LLC
+//
+//   Licensed under the Apache License, Version 2.0 (the "License");
+//   you may not use this file except in compliance with the License.
+//   You may obtain a copy of the License at
+//
+//       http://www.apache.org/licenses/LICENSE-2.0
+//
+//   Unless required by applicable law or agreed to in writing, software
+//   distributed under the License is distributed on an "AS IS" BASIS,
+//   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//   See the License for the specific language governing permissions and
+//   limitations under the License.
+//
+//-----------------------------------------------------------------------------
+#include "commonregex.h"
+
+#include <trex/trex.h>
+
+#include <string>
+
+static const std::string true_regex_string("^[Tt]rue|[Yy]es$");
+static TRexpp true_regex;
+static const std::string false_regex_string("^[Ff]alse|[Nn]o$");
+static TRexpp false_regex;
+
+static bool compiled_regexes = false;
+
+static void try_compile()
+{
+    if( !compiled_regexes )
+    {
+        true_regex.Compile(true_regex_string.c_str());
+        false_regex.Compile(false_regex_string.c_str());
+        compiled_regexes = true;
+    }
+}
+
+CommonRegex::CommonRegex()
+{
+    try_compile();
+}
+
+bool CommonRegex::saysTrue(const std::string& str)
+{
+    return true_regex.Match(str.c_str());
+}
+
+bool CommonRegex::saysFalse(const std::string& str)
+{
+    return false_regex.Match(str.c_str());
+}
+
+bool CommonRegex::saysTrue(const char* str)
+{
+    if( str )
+    {
+        return saysTrue(std::string(str));
+    }
+    else
+    {
+        return false;
+    }
+}
+
+bool CommonRegex::saysFalse(const char* str)
+{
+    if( str )
+    {
+        return saysFalse(std::string(str));
+    }
+    else
+    {
+        return false;
+    }
+}