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author | Ben Longbons <b.r.longbons@gmail.com> | 2014-01-20 11:56:26 -0800 |
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committer | Ben Longbons <b.r.longbons@gmail.com> | 2014-01-20 14:03:53 -0800 |
commit | 9a4c3a44476f3306a8deed8a836e8fbc25ceb55f (patch) | |
tree | 55271e96f4be079cb62f62f204450b4fab85cd5f /src/io/line.hpp | |
parent | 9c1799033d0c17fbefb52a9b2695922f5a715133 (diff) | |
download | tmwa-9a4c3a44476f3306a8deed8a836e8fbc25ceb55f.tar.gz tmwa-9a4c3a44476f3306a8deed8a836e8fbc25ceb55f.tar.bz2 tmwa-9a4c3a44476f3306a8deed8a836e8fbc25ceb55f.tar.xz tmwa-9a4c3a44476f3306a8deed8a836e8fbc25ceb55f.zip |
Add line and char readers
Diffstat (limited to 'src/io/line.hpp')
-rw-r--r-- | src/io/line.hpp | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/src/io/line.hpp b/src/io/line.hpp new file mode 100644 index 0000000..6dccfd9 --- /dev/null +++ b/src/io/line.hpp @@ -0,0 +1,92 @@ +#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/fstring.hpp" +# include "../strings/zstring.hpp" + +# include "read.hpp" + + +namespace io +{ + struct Line + { + FString text; + + FString filename; + // 1-based + uint16_t line, column; + + FString message_str(ZString cat, ZString msg); + void message(ZString cat, ZString msg); + void note(ZString msg) { message("note", msg); } + void warning(ZString msg) { message("warning", msg); } + void error(ZString msg) { message("error", 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]; + } + }; + + class LineReader + { + protected: + FString filename; + uint16_t line, column; + ReadFile rf; + public: + explicit + LineReader(ZString name); + LineReader(LineReader&&) = delete; + // needed for unit tests + LineReader(ZString name, int fd); + + bool read_line(Line& l); + bool is_open(); + }; + + class LineCharReader : private LineReader + { + FString line_text; + public: + explicit + LineCharReader(ZString name); + LineCharReader(LineCharReader&&) = delete; + LineCharReader(ZString name, int fd); + + bool get(LineChar& c); + void adv(); + bool ok(); + bool is_open(); + }; +} // namespace io + +#endif //TMWA_IO_LINE_HPP |