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CommonIO.h
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CommonIO.h
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/*
This file is part of solidity.
solidity is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
solidity is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with solidity. If not, see <http://www.gnu.org/licenses/>.
*/
// SPDX-License-Identifier: GPL-3.0
/** @file CommonIO.h
* @author Gav Wood <i@gavwood.com>
* @date 2014
*
* File & stream I/O routines.
*/
#pragma once
#include <boost/filesystem.hpp>
#include <libsolutil/Common.h>
#include <iostream>
#include <sstream>
#include <string>
namespace solidity
{
inline std::ostream& operator<<(std::ostream& os, bytes const& _bytes)
{
std::ostringstream ss;
ss << std::hex;
std::copy(_bytes.begin(), _bytes.end(), std::ostream_iterator<int>(ss, ","));
std::string result = ss.str();
result.pop_back();
os << "[" + result + "]";
return os;
}
namespace util
{
/// Retrieves and returns the contents of the given file as a std::string.
/// If the file doesn't exist, it will throw a FileNotFound exception.
/// If the file exists but is not a regular file, it will throw NotAFile exception.
/// If the file is empty, returns an empty string.
std::string readFileAsString(boost::filesystem::path const& _file);
/// Retrieves and returns the whole content of the specified input stream (until EOF).
std::string readUntilEnd(std::istream& _stdin);
/// Tries to read exactly @a _length bytes from @a _input.
/// Returns a string containing as much data as has been read.
std::string readBytes(std::istream& _input, size_t _length);
/// Retrieves and returns a character from standard input (without waiting for EOL).
int readStandardInputChar();
/// Converts arbitrary value to string representation using std::stringstream.
template <class T>
std::string toString(T const& _t)
{
std::ostringstream o;
o << _t;
return o.str();
}
/// @returns the absolute path corresponding to @a _path relative to @a _reference.
std::string absolutePath(std::string const& _path, std::string const& _reference);
/// Helper function to return path converted strings.
std::string sanitizePath(std::string const& _path);
}
}