1 files changed, 74 insertions, 0 deletions
diff --git a/contrib/llvm-project/lldb/source/Utility/UriParser.cpp b/contrib/llvm-project/lldb/source/Utility/UriParser.cpp
new file mode 100644
index 000000000000..1932e11acb4c
--- /dev/null
+++ b/contrib/llvm-project/lldb/source/Utility/UriParser.cpp
@@ -0,0 +1,74 @@
+//===-- UriParser.cpp -----------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "lldb/Utility/UriParser.h"
+#include "llvm/Support/raw_ostream.h"
+
+#include <string>
+
+#include <cstdint>
+#include <optional>
+#include <tuple>
+
+using namespace lldb_private;
+
+llvm::raw_ostream &lldb_private::operator<<(llvm::raw_ostream &OS,
+                                            const URI &U) {
+  OS << U.scheme << "://[" << U.hostname << ']';
+  if (U.port)
+    OS << ':' << *U.port;
+  return OS << U.path;
+}
+
+std::optional<URI> URI::Parse(llvm::StringRef uri) {
+  URI ret;
+
+  const llvm::StringRef kSchemeSep("://");
+  auto pos = uri.find(kSchemeSep);
+  if (pos == std::string::npos)
+    return std::nullopt;
+
+  // Extract path.
+  ret.scheme = uri.substr(0, pos);
+  auto host_pos = pos + kSchemeSep.size();
+  auto path_pos = uri.find('/', host_pos);
+  if (path_pos != std::string::npos)
+    ret.path = uri.substr(path_pos);
+  else
+    ret.path = "/";
+
+  auto host_port = uri.substr(
+      host_pos,
+      ((path_pos != std::string::npos) ? path_pos : uri.size()) - host_pos);
+
+  // Extract hostname
+  if (host_port.starts_with('[')) {
+    // hostname is enclosed with square brackets.
+    pos = host_port.rfind(']');
+    if (pos == std::string::npos)
+      return std::nullopt;
+
+    ret.hostname = host_port.substr(1, pos - 1);
+    host_port = host_port.drop_front(pos + 1);
+    if (!host_port.empty() && !host_port.consume_front(":"))
+      return std::nullopt;
+  } else {
+    std::tie(ret.hostname, host_port) = host_port.split(':');
+  }
+
+  // Extract port
+  if (!host_port.empty()) {
+    uint16_t port_value = 0;
+    if (host_port.getAsInteger(0, port_value))
+      return std::nullopt;
+    ret.port = port_value;
+  } else
+    ret.port = std::nullopt;
+
+  return ret;
+}