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#ifndef TMWA_IO_LINE_HPP
#define TMWA_IO_LINE_HPP
// io/line.hpp - Input from files, line-by-line
//
// Copyright © 2014 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// 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/>.
# include "../sanity.hpp"
# include "../strings/rstring.hpp"
# include "../strings/astring.hpp"
# include "../strings/zstring.hpp"
# include "fd.hpp"
# include "read.hpp"
namespace io
{
// TODO split this out
struct Line
{
RString text;
RString filename;
// 1-based
uint16_t line, column;
AString message_str(ZString cat, ZString msg) const;
void message(ZString cat, ZString msg) const;
void note(ZString msg) const { message("note"_s, msg); }
void warning(ZString msg) const { message("warning"_s, msg); }
void error(ZString msg) const { message("error"_s, msg); }
};
// psst, don't tell anyone
struct LineChar : Line
{
char ch()
{
size_t c = column - 1;
if (c == text.size())
return '\n';
return text[c];
}
};
struct LineSpan
{
LineChar begin, end;
AString message_str(ZString cat, ZString msg) const;
void message(ZString cat, ZString msg) const;
void note(ZString msg) const { message("note"_s, msg); }
void warning(ZString msg) const { message("warning"_s, msg); }
void error(ZString msg) const { message("error"_s, msg); }
};
class LineReader
{
protected:
RString filename;
uint16_t line, column;
ReadFile rf;
public:
explicit
LineReader(ZString name);
LineReader(LineReader&&) = delete;
LineReader& operator = (LineReader&&) = delete;
// needed for unit tests
LineReader(ZString name, FD fd);
bool read_line(Line& l);
bool is_open();
};
class LineCharReader : private LineReader
{
RString line_text;
public:
explicit
LineCharReader(ZString name);
LineCharReader(LineCharReader&&) = delete;
LineCharReader& operator = (LineCharReader&&) = delete;
LineCharReader(ZString name, FD fd);
bool get(LineChar& c);
void adv();
bool ok();
bool is_open();
};
} // namespace io
#endif // TMWA_IO_LINE_HPP
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