1 files changed, 57 insertions, 0 deletions
diff --git a/src/support/string.cpp b/src/support/string.cpp
new file mode 100644
index 000000000..c7f8a5ff6
--- /dev/null
+++ b/src/support/string.cpp
@@ -0,0 +1,57 @@
+/*
+ * Copyright 2024 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 <ostream>
+
+#include "support/string.h"
+
+namespace wasm::String {
+
+std::ostream& printEscaped(std::ostream& os, std::string_view str) {
+  os << '"';
+  for (unsigned char c : str) {
+    switch (c) {
+      case '\t':
+        os << "\\t";
+        break;
+      case '\n':
+        os << "\\n";
+        break;
+      case '\r':
+        os << "\\r";
+        break;
+      case '"':
+        os << "\\\"";
+        break;
+      case '\'':
+        os << "\\'";
+        break;
+      case '\\':
+        os << "\\\\";
+        break;
+      default: {
+        if (c >= 32 && c < 127) {
+          os << c;
+        } else {
+          os << std::hex << '\\' << (c / 16) << (c % 16) << std::dec;
+        }
+      }
+    }
+  }
+  return os << '"';
+}
+
+} // namespace wasm::String