1 files changed, 57 insertions, 0 deletions
diff --git a/third_party/wasm2c/src/filenames.cc b/third_party/wasm2c/src/filenames.cc
new file mode 100644
index 0000000000..9f020f46dd
--- /dev/null
+++ b/third_party/wasm2c/src/filenames.cc
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2016 WebAssembly Community Group participants
+ *
+ * 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 "wabt/filenames.h"
+
+namespace wabt {
+
+const char* kWasmExtension = ".wasm";
+
+const char* kWatExtension = ".wat";
+
+std::string_view StripExtension(std::string_view filename) {
+  return filename.substr(0, filename.find_last_of('.'));
+}
+
+std::string_view GetBasename(std::string_view filename) {
+  size_t last_slash = filename.find_last_of('/');
+  size_t last_backslash = filename.find_last_of('\\');
+  if (last_slash == std::string_view::npos &&
+      last_backslash == std::string_view::npos) {
+    return filename;
+  }
+
+  if (last_slash == std::string_view::npos) {
+    if (last_backslash == std::string_view::npos) {
+      return filename;
+    }
+    last_slash = last_backslash;
+  } else if (last_backslash != std::string_view::npos) {
+    last_slash = std::max(last_slash, last_backslash);
+  }
+
+  return filename.substr(last_slash + 1);
+}
+
+std::string_view GetExtension(std::string_view filename) {
+  size_t pos = filename.find_last_of('.');
+  if (pos == std::string_view::npos) {
+    return "";
+  }
+  return filename.substr(pos);
+}
+
+}  // namespace wabt