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Diffstat (limited to 'src/2geom/coord.cpp')
| -rw-r--r-- | src/2geom/coord.cpp | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/src/2geom/coord.cpp b/src/2geom/coord.cpp new file mode 100644 index 0000000..205a82f --- /dev/null +++ b/src/2geom/coord.cpp @@ -0,0 +1,123 @@ +/** @file + * @brief Conversion between Coord and strings + *//* + * Authors: + * Krzysztof Kosiński <tweenk.pl@gmail.com> + * + * Copyright 2014 Authors + * + * This library is free software; you can redistribute it and/or + * modify it either under the terms of the GNU Lesser General Public + * License version 2.1 as published by the Free Software Foundation + * (the "LGPL") or, at your option, under the terms of the Mozilla + * Public License Version 1.1 (the "MPL"). If you do not alter this + * notice, a recipient may use your version of this file under either + * the MPL or the LGPL. + * + * You should have received a copy of the LGPL along with this library + * in the file COPYING-LGPL-2.1; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * You should have received a copy of the MPL along with this library + * in the file COPYING-MPL-1.1 + * + * The contents of this file are subject to the Mozilla Public License + * Version 1.1 (the "License"); you may not use this file except in + * compliance with the License. You may obtain a copy of the License at + * http://www.mozilla.org/MPL/ + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY + * OF ANY KIND, either express or implied. See the LGPL or the MPL for + * the specific language governing rights and limitations. + */ + +// Most of the code in this file is derived from: +// https://code.google.com/p/double-conversion/ +// The copyright notice for that code is attached below. +// +// Copyright 2010 the V8 project authors. All rights reserved. +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * 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. +// * Neither the name of Google Inc. 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 +// OWNER 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. + +#include <2geom/coord.h> +#include <cstdint> +#include <cstdlib> +#include <cassert> +#include <cstring> +#include <climits> +#include <cstdarg> +#include <cmath> + +#include <double-conversion/double-conversion.h> + +namespace Geom { + +std::string format_coord_shortest(Coord x) +{ + static const double_conversion::DoubleToStringConverter conv( + double_conversion::DoubleToStringConverter::UNIQUE_ZERO, + "inf", "NaN", 'e', -3, 6, 0, 0); + std::string ret(' ', 32); + double_conversion::StringBuilder builder(&ret[0], 32); + conv.ToShortest(x, &builder); + ret.resize(builder.position()); + return ret; +} + +std::string format_coord_nice(Coord x) +{ + static const double_conversion::DoubleToStringConverter conv( + double_conversion::DoubleToStringConverter::UNIQUE_ZERO, + "inf", "NaN", 'e', -6, 21, 0, 0); + std::string ret(' ', 32); + double_conversion::StringBuilder builder(&ret[0], 32); + conv.ToShortest(x, &builder); + ret.resize(builder.position()); + return ret; +} + +Coord parse_coord(std::string const &s) +{ + static const double_conversion::StringToDoubleConverter conv( + double_conversion::StringToDoubleConverter::ALLOW_LEADING_SPACES | + double_conversion::StringToDoubleConverter::ALLOW_TRAILING_SPACES | + double_conversion::StringToDoubleConverter::ALLOW_SPACES_AFTER_SIGN, + 0.0, nan(""), "inf", "NaN"); + int dummy; + return conv.StringToDouble(s.c_str(), s.length(), &dummy); +} + +} // namespace Geom + +/* + Local Variables: + mode:c++ + c-file-style:"stroustrup" + c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) + indent-tabs-mode:nil + fill-column:99 + End: +*/ +// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 : |