forked from OSchip/llvm-project
74 lines
2.0 KiB
C++
74 lines
2.0 KiB
C++
//===-- UriParser.cpp -----------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/UriParser.h"
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#include "llvm/Support/raw_ostream.h"
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#include <string>
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#include <cstdint>
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#include <tuple>
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using namespace lldb_private;
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llvm::raw_ostream &lldb_private::operator<<(llvm::raw_ostream &OS,
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const URI &U) {
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OS << U.scheme << "://[" << U.hostname << ']';
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if (U.port)
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OS << ':' << *U.port;
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return OS << U.path;
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}
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llvm::Optional<URI> URI::Parse(llvm::StringRef uri) {
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URI ret;
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const llvm::StringRef kSchemeSep("://");
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auto pos = uri.find(kSchemeSep);
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if (pos == std::string::npos)
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return llvm::None;
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// Extract path.
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ret.scheme = uri.substr(0, pos);
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auto host_pos = pos + kSchemeSep.size();
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auto path_pos = uri.find('/', host_pos);
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if (path_pos != std::string::npos)
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ret.path = uri.substr(path_pos);
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else
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ret.path = "/";
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auto host_port = uri.substr(
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host_pos,
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((path_pos != std::string::npos) ? path_pos : uri.size()) - host_pos);
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// Extract hostname
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if (!host_port.empty() && host_port[0] == '[') {
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// hostname is enclosed with square brackets.
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pos = host_port.rfind(']');
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if (pos == std::string::npos)
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return llvm::None;
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ret.hostname = host_port.substr(1, pos - 1);
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host_port = host_port.drop_front(pos + 1);
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if (!host_port.empty() && !host_port.consume_front(":"))
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return llvm::None;
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} else {
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std::tie(ret.hostname, host_port) = host_port.split(':');
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}
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// Extract port
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if (!host_port.empty()) {
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uint16_t port_value = 0;
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if (host_port.getAsInteger(0, port_value))
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return llvm::None;
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ret.port = port_value;
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} else
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ret.port = llvm::None;
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return ret;
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}
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