1 files changed, 36 insertions, 0 deletions
diff --git a/deps/v8/third_party/antlr4/runtime/Cpp/runtime/src/support/StringUtils.cpp b/deps/v8/third_party/antlr4/runtime/Cpp/runtime/src/support/StringUtils.cpp
new file mode 100644
index 0000000000..f55c8836d2
--- /dev/null
+++ b/deps/v8/third_party/antlr4/runtime/Cpp/runtime/src/support/StringUtils.cpp
@@ -0,0 +1,36 @@
+/* Copyright (c) 2012-2017 The ANTLR Project. All rights reserved.
+ * Use of this file is governed by the BSD 3-clause license that
+ * can be found in the LICENSE.txt file in the project root.
+ */
+
+#include "support/StringUtils.h"
+
+namespace antlrcpp {
+
+void replaceAll(std::string& str, std::string const& from,
+                std::string const& to) {
+  if (from.empty()) return;
+
+  size_t start_pos = 0;
+  while ((start_pos = str.find(from, start_pos)) != std::string::npos) {
+    str.replace(start_pos, from.length(), to);
+    start_pos += to.length();  // In case 'to' contains 'from', like replacing
+                               // 'x' with 'yx'.
+  }
+}
+
+std::string ws2s(std::wstring const& wstr) {
+  // This is a shim-implementation breaking non-ASCII characters.
+  std::string s;
+  for (wchar_t c : wstr) s.push_back(static_cast<char>(c));
+  return s;
+}
+
+std::wstring s2ws(const std::string& str) {
+  // This is a shim-implementation breaking non-ASCII characters.
+  std::wstring s;
+  for (char c : str) s.push_back(c);
+  return s;
+}
+
+}  // namespace antlrcpp