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csv_formatter.hpp
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/* =============================================================================
Copyright (c) 2014 - 2016
F. Georget <fabieng@princeton.edu> Princeton University
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
3. Neither the name of the copyright holder nor the names of its
contributors may be used to endorse or promote products derived from this
software without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
============================================================================= */
#ifndef SPECMICP_IO_CSV_FORMATTER
#define SPECMICP_IO_CSV_FORMATTER
#include "specmicp_common/types.hpp"
#include <string>
#include <memory>
#include <fstream>
#include <stdexcept>
#include "format.hpp"
namespace specmicp {
namespace io {
//! \brief A output file
//!
//! This is a wrapper around a std::ofstream
//!
//! The wrapper exists to make the formatting easier
class SPECMICP_DLL_PUBLIC OutFile
{
public:
OutFile() {}
//! \brief Open a file to write
OutFile(const std::string& filepath);
//! \brief Close the file
~OutFile() {
close();
}
// This is needed for GCC
OutFile(OutFile&& other) {
m_stream.swap(other.m_stream);
}
//! \brief open a file
void open(const std::string& filepath);
//! \brief Stream operator
std::ofstream& operator<< (const std::string& value) {
_get() << value;
return _get();
}
//! \brief Stream operator
std::ofstream& operator<< (scalar_t value) {
_get() << value;
return _get();
}
//! \brief Stream operator
std::ofstream& operator<< (index_t value) {
_get() << value;
return _get();
}
//! \brief Close a line and flush the stream
void endl() {
_get() << std::endl;
}
//! \brief Flush the stream
void flush() {
m_stream->flush();
}
//! \brief close the stream
void close();
//! \brief Return true if a file is open
bool is_open()
{
if (m_stream == nullptr) return false;
return m_stream->is_open();
}
protected:
std::ofstream& _get() {return (*m_stream);}
std::unique_ptr<std::ofstream> m_stream {nullptr};
};
//! \brief A CSV file
class SPECMICP_DLL_PUBLIC CSVFile: public OutFile
{
public:
CSVFile() {}
CSVFile(const std::string& filepath);
//! \brief insert a comment line
void insert_comment_line(const std::string& msg);
//! \brief insert a comment line with the date
void insert_comment_date();
//! \brief insert a comment line with unit information
void insert_comment_unit(const std::string& variable_name, const std::string& unit);
//! \brief Write an end of line
void eol() {
_get() << "\n";
}
//! \brief Write the space sequence
void space() {
_get() << " ";
}
//! \brief Write the separator sequence
void separator() {
_get() << get_format().get_csv_separator();
}
//! \brief Write the comment sequence
void comment() {
_get() << get_format().get_csv_comment();
}
};
} //end namespace io
} //end namespace specmicp
#endif // SPECMICP_IO_CSV_FORMATTER

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