[ceph.git] / ceph / src / boost / boost / geometry / srs / projections / impl / dms_parser.hpp

// Boost.Geometry (aka GGL, Generic Geometry Library)

// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.

// This file was modified by Oracle on 2017, 2018.
// Modifications copyright (c) 2017-2018, Oracle and/or its affiliates.
// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle

// Use, modification and distribution is subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

#ifndef BOOST_GEOMETRY_SRS_PROJECTIONS_IMPL_DMS_PARSER_HPP
#define BOOST_GEOMETRY_SRS_PROJECTIONS_IMPL_DMS_PARSER_HPP

// This file is totally revised from PROJ4 dmstor.c

// PROJ4 is originally written by Gerald Evenden (then of the USGS)
// PROJ4 is maintained by Frank Warmerdam
// PROJ4 is converted to Geometry Library by Barend Gehrels (Geodan, Amsterdam)

// Original copyright notice:

// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:

// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.

#include <string>

#include <boost/static_assert.hpp>

#if !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
#include <boost/lexical_cast.hpp>
#endif // !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)

#include <boost/algorithm/string.hpp>

#include <boost/config.hpp>

#include <boost/geometry/core/cs.hpp>

#include <boost/geometry/util/math.hpp>

namespace boost { namespace geometry { namespace projections
{

namespace detail
{

template <typename T>
struct dms_result
{
    enum axis_selector {axis_lat = 1, axis_lon = 0};

    private :
        T m_angle;
        axis_selector m_axis;

    public :

        explicit dms_result(T const& v, axis_selector ax)
            : m_angle(v)
            , m_axis(ax)
        {}

        inline axis_selector axis() const { return m_axis; }

        inline T angle() const { return m_angle; }

        template <typename CH, typename TR>
        inline friend std::basic_ostream<CH, TR>& operator<<(std::basic_ostream<CH, TR>& os,
                        const dms_result& d)
        {
            os << d.m_angle;
            return os;
        }

};


template <typename T
        , bool as_radian = true
        , char N = 'N', char E = 'E', char S = 'S', char W = 'W' // translatable
        , char MIN = '\'', char SEC = '"' // other char's possible
        , char D = 'D', char R = 'R' // degree sign might be small o
        >
struct dms_parser
{


    // Question from Barend: can we compile-time select that it is case-sensitive/case-insensitive?
    // We have to change the switch then -> specializations

    // For now: make it (compile-time) case sensitive
    static const int diff = 'a' - 'A';
#ifndef __GNUC__
    BOOST_STATIC_ASSERT((diff > 0)); // make sure we've the right assumption. GCC does not accept this here.
#endif
    static const char n_alter = N <= 'Z' ? N + diff : N - diff;
    static const char e_alter = E <= 'Z' ? E + diff : E - diff;
    static const char s_alter = S <= 'Z' ? S + diff : S - diff;
    static const char w_alter = W <= 'Z' ? W + diff : W - diff;

    static const char r_alter = R <= 'Z' ? R + diff : R - diff;

    // degree is normally D (proj4) but might be superscript o
    // Note d_alter is not correct then, so map it to NULL now, guarded by the while
    static const char d_alter =
        ((D >= 'A' && D <= 'Z') || (D >= 'a' && D <= 'z')) ? (D <= 'Z' ? D + diff : D - diff) : '\0';


    struct dms_value
    {
        T dms[3];
        bool has_dms[3];

        dms_value()
#ifndef BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
            : dms{0, 0, 0}
            , has_dms{false, false, false}
#endif
        {
#ifdef BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
            std::fill(dms, dms + 3, T(0));
            std::fill(has_dms, has_dms + 3, false);
#endif
        }
    };


    template <size_t I>
    static inline void assign_dms(dms_value& dms, std::string& value, bool& has_value)
    {
#if !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
        dms.dms[I] = boost::lexical_cast<T>(value.c_str());
#else // !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
        dms.dms[I] = std::atof(value.c_str());
#endif // !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
        dms.has_dms[I] = true;
        has_value = false;
        value.clear();
    }

    static inline void process(dms_value& dms, std::string& value, bool& has_value)
    {
        if (has_value)
        {
            // Assign last one, sequentially
            if (! dms.has_dms[0]) assign_dms<0>(dms, value, has_value);
            else if (! dms.has_dms[1]) assign_dms<1>(dms, value, has_value);
            else if (! dms.has_dms[2]) assign_dms<2>(dms, value, has_value);
        }
    }

    dms_result<T> apply(std::string const& is) const
    {
        return apply(is.c_str());
    }

    dms_result<T> apply(const char* is) const
    {
        dms_value dms;
        bool has_value = false;
        std::string value;

        T factor = 1.0; // + denotes N/E values, -1 denotes S/W values
        typename dms_result<T>::axis_selector axis = dms_result<T>::axis_lon; // true denotes N/S values
        bool in_radian = false; // true denotes values as "0.1R"

        while(*is)
        {
            switch(*is)
            {
                case '-' :
                    if (! has_value && ! dms.has_dms[0])
                    {
                        factor = -factor;
                    }
                    break;
                case N :
                case n_alter :
                    axis = dms_result<T>::axis_lat;
                    break;
                case S :
                case s_alter :
                    axis = dms_result<T>::axis_lat;
                    factor = -factor;
                    break;
                case E :
                case e_alter :
                    axis = dms_result<T>::axis_lon;
                    break;
                case W :
                case w_alter :
                    axis = dms_result<T>::axis_lon;
                    factor = -factor;
                    break;
                case D :
                case d_alter :
                    if (! dms.has_dms[0] && has_value)
                    {
                        assign_dms<0>(dms, value, has_value);
                    }
                    break;
                case R :
                case r_alter :
                    if (! dms.has_dms[0] && has_value)
                    {
                        // specified value is in radian!
                        in_radian = true;
                        assign_dms<0>(dms, value, has_value);
                    }
                    break;
                case MIN:
                    if (! dms.has_dms[1] && has_value)
                    {
                        assign_dms<1>(dms, value, has_value);
                    }
                    break;
                case SEC :
                    if (! dms.has_dms[2] && has_value)
                    {
                        assign_dms<2>(dms, value, has_value);
                    }
                    break;
                case ' ' :
                case '\t' :
                case '\n' :
                    process(dms, value, has_value);
                    break;
                default :
                    value += *is;
                    has_value = true;
                    break;
            }
            is++;
        }

        // Assign last one, if any
        process(dms, value, has_value);

        T const d2r = math::d2r<T>();
        T const r2d = math::r2d<T>();

        return dms_result<T>(factor *
            (in_radian && as_radian
                    ? dms.dms[0]
            : in_radian && ! as_radian
                    ? dms.dms[0] * r2d
            : ! in_radian && as_radian
                    ? dms.dms[0] * d2r + dms.dms[1] * d2r / 60.0 + dms.dms[2] * d2r / 3600.0
                    : dms.dms[0] + dms.dms[1] / 60.0 + dms.dms[2] / 3600.0)
            , axis);
    }
};


} // namespace detail


}}} // namespace boost::geometry::projections


#endif // BOOST_GEOMETRY_SRS_PROJECTIONS_IMPL_DMS_PARSER_HPP
Commit	Line	Data
11fdf7f2 TL	1	// Boost.Geometry (aka GGL, Generic Geometry Library)
	2
	3	// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
	4
	5	// This file was modified by Oracle on 2017, 2018.
	6	// Modifications copyright (c) 2017-2018, Oracle and/or its affiliates.
	7	// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
	8
	9	// Use, modification and distribution is subject to the Boost Software License,
	10	// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
	11	// http://www.boost.org/LICENSE_1_0.txt)
	12
	13	#ifndef BOOST_GEOMETRY_SRS_PROJECTIONS_IMPL_DMS_PARSER_HPP
	14	#define BOOST_GEOMETRY_SRS_PROJECTIONS_IMPL_DMS_PARSER_HPP
	15
	16	// This file is totally revised from PROJ4 dmstor.c
	17
	18	// PROJ4 is originally written by Gerald Evenden (then of the USGS)
	19	// PROJ4 is maintained by Frank Warmerdam
	20	// PROJ4 is converted to Geometry Library by Barend Gehrels (Geodan, Amsterdam)
	21
	22	// Original copyright notice:
	23
	24	// Permission is hereby granted, free of charge, to any person obtaining a
	25	// copy of this software and associated documentation files (the "Software"),
	26	// to deal in the Software without restriction, including without limitation
	27	// the rights to use, copy, modify, merge, publish, distribute, sublicense,
	28	// and/or sell copies of the Software, and to permit persons to whom the
	29	// Software is furnished to do so, subject to the following conditions:
	30
	31	// The above copyright notice and this permission notice shall be included
	32	// in all copies or substantial portions of the Software.
	33
	34	// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	35	// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	36	// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	37	// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	38	// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
	39	// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
	40	// DEALINGS IN THE SOFTWARE.
	41
	42	#include <string>
	43
	44	#include <boost/static_assert.hpp>
	45
	46	#if !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
	47	#include <boost/lexical_cast.hpp>
	48	#endif // !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
	49
	50	#include <boost/algorithm/string.hpp>
	51
	52	#include <boost/config.hpp>
	53
	54	#include <boost/geometry/core/cs.hpp>
	55
	56	#include <boost/geometry/util/math.hpp>
	57
	58	namespace boost { namespace geometry { namespace projections
	59	{
	60
	61	namespace detail
	62	{
	63
	64	template <typename T>
65	struct dms_result
66	{
67	enum axis_selector {axis_lat = 1, axis_lon = 0};
68
69	private :
70	T m_angle;
71	axis_selector m_axis;
72
73	public :
74
75	explicit dms_result(T const& v, axis_selector ax)
76	: m_angle(v)
77	, m_axis(ax)
78	{}
79
80	inline axis_selector axis() const { return m_axis; }
81
82	inline T angle() const { return m_angle; }
83
84	template <typename CH, typename TR>
85	inline friend std::basic_ostream<CH, TR>& operator<<(std::basic_ostream<CH, TR>& os,
86	const dms_result& d)
87	{
88	os << d.m_angle;
89	return os;
90	}
91
92	};
93
94
95	template <typename T
96	, bool as_radian = true
97	, char N = 'N', char E = 'E', char S = 'S', char W = 'W' // translatable
98	, char MIN = '\'', char SEC = '"' // other char's possible
99	, char D = 'D', char R = 'R' // degree sign might be small o
100	>
101	struct dms_parser
102	{
103
104
105	// Question from Barend: can we compile-time select that it is case-sensitive/case-insensitive?
106	// We have to change the switch then -> specializations
107
108	// For now: make it (compile-time) case sensitive
109	static const int diff = 'a' - 'A';
110	#ifndef __GNUC__
111	BOOST_STATIC_ASSERT((diff > 0)); // make sure we've the right assumption. GCC does not accept this here.
112	#endif
113	static const char n_alter = N <= 'Z' ? N + diff : N - diff;
114	static const char e_alter = E <= 'Z' ? E + diff : E - diff;
115	static const char s_alter = S <= 'Z' ? S + diff : S - diff;
116	static const char w_alter = W <= 'Z' ? W + diff : W - diff;
117
118	static const char r_alter = R <= 'Z' ? R + diff : R - diff;
119
120	// degree is normally D (proj4) but might be superscript o
121	// Note d_alter is not correct then, so map it to NULL now, guarded by the while
122	static const char d_alter =
123	((D >= 'A' && D <= 'Z') \|\| (D >= 'a' && D <= 'z')) ? (D <= 'Z' ? D + diff : D - diff) : '\0';
124
125
126	struct dms_value
127	{
128	T dms[3];
129	bool has_dms[3];
130
131	dms_value()
132	#ifndef BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
133	: dms{0, 0, 0}
134	, has_dms{false, false, false}
135	#endif
136	{
137	#ifdef BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX
138	std::fill(dms, dms + 3, T(0));
139	std::fill(has_dms, has_dms + 3, false);
140	#endif
141	}
142	};
143
144
145	template <size_t I>
146	static inline void assign_dms(dms_value& dms, std::string& value, bool& has_value)
147	{
148	#if !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
149	dms.dms[I] = boost::lexical_cast<T>(value.c_str());
150	#else // !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
151	dms.dms[I] = std::atof(value.c_str());
152	#endif // !defined(BOOST_GEOMETRY_NO_LEXICAL_CAST)
153	dms.has_dms[I] = true;
154	has_value = false;
155	value.clear();
156	}
157
158	static inline void process(dms_value& dms, std::string& value, bool& has_value)
159	{
160	if (has_value)
161	{
162	// Assign last one, sequentially
163	if (! dms.has_dms[0]) assign_dms<0>(dms, value, has_value);
164	else if (! dms.has_dms[1]) assign_dms<1>(dms, value, has_value);
165	else if (! dms.has_dms[2]) assign_dms<2>(dms, value, has_value);
166	}
167	}
168
169	dms_result<T> apply(std::string const& is) const
170	{
171	return apply(is.c_str());
172	}
173
174	dms_result<T> apply(const char* is) const
175	{
176	dms_value dms;
177	bool has_value = false;
178	std::string value;
179
180	T factor = 1.0; // + denotes N/E values, -1 denotes S/W values
181	typename dms_result<T>::axis_selector axis = dms_result<T>::axis_lon; // true denotes N/S values
182	bool in_radian = false; // true denotes values as "0.1R"
183
184	while(*is)
185	{
186	switch(*is)
187	{
188	case '-' :
189	if (! has_value && ! dms.has_dms[0])
190	{
191	factor = -factor;
192	}
193	break;
194	case N :
195	case n_alter :
196	axis = dms_result<T>::axis_lat;
197	break;
198	case S :
199	case s_alter :
200	axis = dms_result<T>::axis_lat;
201	factor = -factor;
202	break;
203	case E :
204	case e_alter :
205	axis = dms_result<T>::axis_lon;
206	break;
207	case W :
208	case w_alter :
209	axis = dms_result<T>::axis_lon;
210	factor = -factor;
211	break;
212	case D :
213	case d_alter :
214	if (! dms.has_dms[0] && has_value)
215	{
216	assign_dms<0>(dms, value, has_value);
217	}
218	break;
219	case R :
220	case r_alter :
221	if (! dms.has_dms[0] && has_value)
222	{
223	// specified value is in radian!
224	in_radian = true;
225	assign_dms<0>(dms, value, has_value);
226	}
227	break;
228	case MIN:
229	if (! dms.has_dms[1] && has_value)
230	{
231	assign_dms<1>(dms, value, has_value);
232	}
233	break;
234	case SEC :
235	if (! dms.has_dms[2] && has_value)
236	{
237	assign_dms<2>(dms, value, has_value);
238	}
239	break;
240	case ' ' :
241	case '\t' :
242	case '\n' :
243	process(dms, value, has_value);
244	break;
245	default :
246	value += *is;
247	has_value = true;
248	break;
249	}
250	is++;
251	}
252
253	// Assign last one, if any
254	process(dms, value, has_value);
255
256	T const d2r = math::d2r<T>();
257	T const r2d = math::r2d<T>();
258
259	return dms_result<T>(factor *
260	(in_radian && as_radian
261	? dms.dms[0]
262	: in_radian && ! as_radian
263	? dms.dms[0] * r2d
264	: ! in_radian && as_radian
265	? dms.dms[0] * d2r + dms.dms[1] * d2r / 60.0 + dms.dms[2] * d2r / 3600.0
266	: dms.dms[0] + dms.dms[1] / 60.0 + dms.dms[2] / 3600.0)
267	, axis);
268	}
269	};
270
271
272	} // namespace detail
273
274
275	}}} // namespace boost::geometry::projections
276
277
278	#endif // BOOST_GEOMETRY_SRS_PROJECTIONS_IMPL_DMS_PARSER_HPP