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+/*************************************************************************
+** SourceInput.hpp **
+** **
+** This file is part of dvisvgm -- a fast DVI to SVG converter **
+** Copyright (C) 2005-2019 Martin Gieseking <martin.gieseking@uos.de> **
+** **
+** This program 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. **
+** **
+** This program 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 this program; if not, see <http://www.gnu.org/licenses/>. **
+*************************************************************************/
+
+#ifndef SOURCEINPUT_HPP
+#define SOURCEINPUT_HPP
+
+#include <fstream>
+#include <string>
+
+
+/** Helper class to handle temporary files. */
+class TemporaryFile {
+ public:
+ ~TemporaryFile () {close();}
+ bool create ();
+ bool opened () const {return _fd >= 0;}
+ bool write (const char *buf, size_t len);
+ bool close ();
+ const std::string& path () const {return _path;}
+
+ private:
+ int _fd = -1; ///< file descriptor assigned to the temporary file
+ std::string _path; ///< path to temporary file
+};
+
+
+class SourceInput {
+ public:
+ explicit SourceInput (const std::string &fname) : _fname(fname) {}
+ std::istream& getInputStream (bool showMessages=false);
+ std::string getFileName () const;
+ std::string getMessageFileName () const;
+ std::string getFilePath () const;
+
+ private:
+ const std::string &_fname; ///< name of file to read from
+ TemporaryFile _tmpfile; ///< temporary file used when reading from stdin
+ std::ifstream _ifs;
+};
+
+#endif