1 # // Copyright (C) 2007
2 # // Fraunhofer Institute for Open Communication Systems (FOKUS)
3 # // Competence Center NETwork research (NET), St. Augustin, GERMANY
4 # // Stefan Bund <g0dil@berlios.de>
6 # // This program is free software; you can redistribute it and/or modify
7 # // it under the terms of the GNU General Public License as published by
8 # // the Free Software Foundation; either version 2 of the License, or
9 # // (at your option) any later version.
11 # // This program is distributed in the hope that it will be useful,
12 # // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # // GNU General Public License for more details.
16 # // You should have received a copy of the GNU General Public License
17 # // along with this program; if not, write to the
18 # // Free Software Foundation, Inc.,
19 # // 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 # \brief ParseHelpers internal header */
24 # if !defined(IH_ParseHelpers_)
25 # define IH_ParseHelpers_ 1
28 # include <boost/preprocessor/cat.hpp>
29 # include "../Utils/mpl.hh"
31 # ////////////////////////////////ih.p///////////////////////////////////////
33 # ///////////////////////////////////////////////////////////////////////////
34 # // SENF_PARSER_INITIALIZE
36 # define SENF_PARSER_INITIALIZE BOOST_PP_CAT( SENF_PARSER_INITIALIZE_ , SENF_PARSER_TYPE )
38 # define SENF_PARSER_INITIALIZE_fix() \
40 SENF_MPL_SLOT_DEF_ZERO(index); \
41 SENF_MPL_SLOT_DEF_ZERO(offset); \
42 SENF_MPL_SLOT_DEF_ZERO(bit); \
43 SENF_MPL_SLOT_DEF_ZERO(bitfield_size); \
44 void init_chain(senf::mpl::rv<0>*) const {} \
47 # define SENF_PARSER_INITIALIZE_var() \
49 SENF_MPL_SLOT_DEF_ZERO(index); \
50 SENF_MPL_SLOT_DEF_ZERO(init_bytes); \
51 SENF_MPL_SLOT_DEF_ZERO(bit); \
52 SENF_MPL_SLOT_DEF_ZERO(bitfield_size); \
53 void init_chain(senf::mpl::rv<0>*) const {} \
54 size_type field_offset_(senf::mpl::rv<0>*) const { return 0; } \
57 # ///////////////////////////////////////////////////////////////////////////
58 # // SENF_PARSER_INHERIT_*
60 # define SENF_PARSER_INHERIT_var(name) \
61 typedef name parser_base_type; \
63 SENF_MPL_SLOT_SET(index, 1); \
64 SENF_MPL_SLOT_SET(init_bytes, senf::init_bytes<name>::value); \
65 size_type field_offset_(senf::mpl::rv<1>*) const { \
66 return senf::bytes( *static_cast<name const*>(this) ); \
68 void init_chain(senf::mpl::rv<1>*) const { \
73 # define SENF_PARSER_INHERIT_fix(name) \
74 typedef name parser_base_type; \
76 SENF_MPL_SLOT_SET(offset, name::fixed_bytes); \
77 SENF_MPL_SLOT_SET(index, 1); \
78 void init_chain(senf::mpl::rv<1>*) const { \
83 # ///////////////////////////////////////////////////////////////////////////
84 # // SENF_PARSER_FIELD*
85 # // SENF_PARSER_P_FIELD_*
87 # define SENF_PARSER_FIELD_var(name, type) SENF_PARSER_FIELD_I(name, type, var, rw, public)
88 # define SENF_PARSER_FIELD_RO_var(name, type) SENF_PARSER_FIELD_I(name, type, var, ro, public)
89 # define SENF_PARSER_FIELD_fix(name, type) SENF_PARSER_FIELD_I(name, type, fix, rw, public)
90 # define SENF_PARSER_FIELD_RO_fix(name, type) SENF_PARSER_FIELD_I(name, type, fix, ro, public)
92 # define SENF_PARSER_P_FIELD_var(name, type) SENF_PARSER_FIELD_I(name, type, var, rw, private)
93 # define SENF_PARSER_P_FIELD_fix(name, type) SENF_PARSER_FIELD_I(name, type, fix, rw, private)
95 # define SENF_PARSER_FIELD_I(name, type, ofstype, rwtype, access) \
97 SENF_PARSER_I_BITFIELD_RESET() \
98 SENF_PARSER_I_FIELD_INTRO(name, type, access) \
99 BOOST_PP_CAT(SENF_PARSER_I_FIELD_INIT_, rwtype) (name, type, access) \
100 BOOST_PP_CAT(SENF_PARSER_I_FIELD_OFS_, ofstype) (name, type, access) \
101 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) ( \
103 BOOST_PP_CAT(SENF_PARSER_I_SIZE_, ofstype) (name, type), \
104 BOOST_PP_CAT(SENF_PARSER_I_INITBYTES_, ofstype) (name, type), \
106 BOOST_PP_CAT(SENF_PARSER_I_FIELD_VAL_, rwtype) (name, type, access) \
109 # ////////////////////////////////////////
110 # // SENF_PARSER_I_FIELD_INTRO
112 # define SENF_PARSER_I_FIELD_INTRO(name, type, access) \
113 typedef type BOOST_PP_CAT(name, _t); \
114 static size_type const BOOST_PP_CAT(name,_index) = SENF_MPL_SLOT_GET(index)+1; \
116 SENF_MPL_SLOT_SET(index, BOOST_PP_CAT(name,_index)); \
119 # ////////////////////////////////////////
120 # // SENF_PARSER_I_FIELD_INIT_*
122 # define SENF_PARSER_I_FIELD_INIT_rw(name, type, access) \
124 void init_chain(senf::mpl::rv<BOOST_PP_CAT(name,_index)>*) const { \
125 init_chain(static_cast<senf::mpl::rv<BOOST_PP_CAT(name,_index)-1>*>(0)); \
130 # define SENF_PARSER_I_FIELD_INIT_ro(name, type, access) \
132 void init_chain(senf::mpl::rv<BOOST_PP_CAT(name,_index)>*) const { \
133 init_chain(static_cast<senf::mpl::rv<BOOST_PP_CAT(name,_index)-1>*>(0)); \
137 # ////////////////////////////////////////
138 # // SENF_PARSER_I_FIELD_OFS_*
140 # define SENF_PARSER_I_FIELD_OFS_var(name, type, access) \
141 size_type BOOST_PP_CAT(name,_offset)() const { \
142 return field_offset_(static_cast<senf::mpl::rv<BOOST_PP_CAT(name,_index)-1>*>(0)); \
144 static size_type const BOOST_PP_CAT(name, _init_bytes) = SENF_MPL_SLOT_GET(init_bytes);
146 # define SENF_PARSER_I_FIELD_OFS_fix(name, type, access) \
147 static size_type const BOOST_PP_CAT(name, _offset) = SENF_MPL_SLOT_GET(offset);
149 # ////////////////////////////////////////
150 # // SENF_PARSER_I_ADVANCE_OFS_*
152 # // Can't call 'name()' here if 'name' is an ro field ...
153 # define SENF_PARSER_I_SIZE_var(name, type) senf::bytes(parse<type>(BOOST_PP_CAT(name,_offset)()))
154 # define SENF_PARSER_I_INITBYTES_var(name, type) senf::init_bytes<type>::value
156 # define SENF_PARSER_I_SIZE_fix(name, type) type::fixed_bytes
157 # define SENF_PARSER_I_INITBYTES_fix(name, type) void
159 # define SENF_PARSER_I_ADVANCE_OFS_var(name, type, size, isize, access) \
160 size_type BOOST_PP_CAT(name, _next_offset)() const { \
161 return BOOST_PP_CAT(name,_offset)() + size; \
163 static size_type const BOOST_PP_CAT(name, _next_init_bytes) = \
164 BOOST_PP_CAT(name, _init_bytes) + isize; \
166 size_type field_offset_(senf::mpl::rv<BOOST_PP_CAT(name,_index)>*) const { \
167 return BOOST_PP_CAT(name, _next_offset)(); \
169 SENF_MPL_SLOT_SET(init_bytes, BOOST_PP_CAT(name,_next_init_bytes)); \
172 # define SENF_PARSER_I_ADVANCE_OFS_fix(name, type, size, isize, access) \
173 static size_type const BOOST_PP_CAT(name, _next_offset) = \
174 BOOST_PP_CAT(name, _offset) + size; \
176 SENF_MPL_SLOT_SET(offset, BOOST_PP_CAT(name, _next_offset)); \
179 # ////////////////////////////////////////
180 # // SENF_PARSER_I_FIELD_VAL_*
182 # define SENF_PARSER_I_FIELD_VAL_rw(name, type, access) \
183 BOOST_PP_CAT(name, _t) name() const { \
184 return parse<type>( SENF_PARSER_OFFSET(name) ); \
187 # define SENF_PARSER_I_FIELD_VAL_ro(name, type, access) \
189 BOOST_PP_CAT(name, _t) BOOST_PP_CAT(name, _)() const { \
190 return parse<type>( SENF_PARSER_OFFSET(name) ); \
193 BOOST_PP_CAT(name, _t)::value_type name() const { \
194 return BOOST_PP_CAT(name,_)(); \
197 # ///////////////////////////////////////////////////////////////////////////
198 # // SENF_PARSER_CUSTOM_FIELD_*
200 # define SENF_PARSER_CUSTOM_FIELD_var(name, type, size, isize) \
201 SENF_PARSER_CUSTOM_FIELD_I(name, type, size, isize, var)
202 # define SENF_PARSER_CUSTOM_FIELD_fix(name, type, size) \
203 SENF_PARSER_CUSTOM_FIELD_I(name, type, size, size, fix)
205 # define SENF_PARSER_CUSTOM_FIELD_I(name, type, size, isize, ofstype) \
206 SENF_PARSER_I_BITFIELD_RESET() \
207 SENF_PARSER_I_FIELD_INTRO(name, type, public) \
208 SENF_PARSER_I_FIELD_INIT_ro(name, type, public) \
209 BOOST_PP_CAT(SENF_PARSER_I_FIELD_OFS_, ofstype) (name, type, public) \
210 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) (name, type, size, isize, public) \
211 BOOST_PP_CAT(name, _t) name() const
213 # ///////////////////////////////////////////////////////////////////////////
214 # // SENF_PARSER_BITFIELD_*
215 # // SENF_PARSER_P_BITFIELD_*
217 # define SENF_PARSER_BITFIELD_var(name, bits, type) \
218 SENF_PARSER_BITFIELD_I(name, bits, type, var, rw, public)
219 # define SENF_PARSER_BITFIELD_RO_var(name, bits, type) \
220 SENF_PARSER_BITFIELD_I(name, bits, type, var, ro, public)
221 # define SENF_PARSER_BITFIELD_fix(name, bits, type) \
222 SENF_PARSER_BITFIELD_I(name, bits, type, fix, rw, public)
223 # define SENF_PARSER_BITFIELD_RO_fix(name, bits, type) \
224 SENF_PARSER_BITFIELD_I(name, bits, type, fix, ro, public)
226 # define SENF_PARSER_P_BITFIELD_var(name, bits, type) \
227 SENF_PARSER_BITFIELD_I(name, bits, type, var, rw, private)
228 # define SENF_PARSER_P_BITFIELD_fix(name, bits, type) \
229 SENF_PARSER_BITFIELD_I(name, bits, type, fix, rw, private)
231 # ////////////////////////////////////////
232 # // SENF_PARSER_BITFIELD_I
234 # define SENF_PARSER_BITFIELD_TYPE_signed(start, bits) senf::IntFieldParser<start, start+bits>
235 # define SENF_PARSER_BITFIELD_TYPE_unsigned(start, bits) senf::UIntFieldParser<start, start+bits>
236 # define SENF_PARSER_BITFIELD_TYPE_bool(start, bits) senf::FlagParser<start>
238 # define SENF_PARSER_BITFIELD_I(name, bits, type, ofstype, rwtype, access) \
240 static size_type const BOOST_PP_CAT(name, _bit) = SENF_MPL_SLOT_GET(bit); \
242 SENF_MPL_SLOT_SET(bit, BOOST_PP_CAT(name, _bit) + bits); \
243 typedef BOOST_PP_CAT(SENF_PARSER_BITFIELD_TYPE_, type)( BOOST_PP_CAT(name, _bit), bits ) \
244 BOOST_PP_CAT(name,_bit_t ); \
246 SENF_PARSER_BITFIELD_II( name, bits, BOOST_PP_CAT(name, _bit_t), ofstype, rwtype, access) \
249 # define SENF_PARSER_BITFIELD_II(name, bits, type, ofstype, rwtype, access) \
250 SENF_PARSER_I_FIELD_INTRO(name, type, access) \
251 SENF_PARSER_I_FIELD_INIT_ro(name, type, access) \
252 BOOST_PP_CAT(SENF_PARSER_I_BITFIELD_OFS_, ofstype) (name, type, access) \
253 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) ( \
255 BOOST_PP_CAT(name, _t)::fixed_bytes, BOOST_PP_CAT(name, _t)::fixed_bytes, \
258 SENF_MPL_SLOT_SET(bitfield_size, BOOST_PP_CAT(name, _t)::fixed_bytes); \
260 BOOST_PP_CAT(SENF_PARSER_I_FIELD_VAL_, rwtype) (name, type, access) \
263 # ////////////////////////////////////////
264 # // SENF_PARSER_I_BITFIELD_OFS_*
266 # define SENF_PARSER_I_BITFIELD_OFS_var(name, type, access) \
267 size_type BOOST_PP_CAT(name,_offset)() const { \
268 return field_offset_(static_cast<senf::mpl::rv<BOOST_PP_CAT(name,_index)-1>*>(0)) \
269 - SENF_MPL_SLOT_GET(bitfield_size); \
271 static size_type const BOOST_PP_CAT(name, _init_bytes) = SENF_MPL_SLOT_GET(init_bytes) \
272 - SENF_MPL_SLOT_GET(bitfield_size);
274 # define SENF_PARSER_I_BITFIELD_OFS_fix(name, type, access) \
275 static size_type const BOOST_PP_CAT(name, _offset) = SENF_MPL_SLOT_GET(offset) \
276 - SENF_MPL_SLOT_GET(bitfield_size);
278 # ////////////////////////////////////////
279 # // SENF_PARSER_I_BITFIELD_RESET
281 # define SENF_PARSER_I_BITFIELD_RESET() \
282 SENF_MPL_SLOT_SET(bit, 0); \
283 SENF_MPL_SLOT_SET(bitfield_size, 0);
285 # ///////////////////////////////////////////////////////////////////////////
286 # // SENF_PARSER_SKIP_*
288 # define SENF_PARSER_SKIP_var(bytes, ibytes) \
289 SENF_PARSER_I_SKIP( BOOST_PP_CAT(senf_anon_, __LINE__), bytes, ibytes, var)
291 # define SENF_PARSER_SKIP_fix(bytes) \
292 SENF_PARSER_I_SKIP( BOOST_PP_CAT(senf_anon_, __LINE__), bytes, bytes, fix)
294 # define SENF_PARSER_I_SKIP(name, bytes, ibytes, ofstype) \
296 SENF_PARSER_I_BITFIELD_RESET() \
297 SENF_PARSER_I_FIELD_INTRO(name, void, private) \
298 SENF_PARSER_I_FIELD_INIT_ro(name, void, private) \
299 BOOST_PP_CAT(SENF_PARSER_I_FIELD_OFS_, ofstype) (name, type, access) \
300 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) (name, void, bytes, ibytes, private) \
303 # ///////////////////////////////////////////////////////////////////////////
304 # // SENF_PARSER_SKIP_BITS_*
306 # define SENF_PARSER_SKIP_BITS_var(bits) SENF_PARSER_I_SKIP_BITS(bits, var)
307 # define SENF_PARSER_SKIP_BITS_fix(bits) SENF_PARSER_I_SKIP_BITS(bits, fix)
309 # define SENF_PARSER_I_SKIP_BITS(bits, ofstype) \
310 SENF_MPL_SLOT_SET(bit, SENF_MPL_SLOT_GET(bit) + bits)
312 # ///////////////////////////////////////////////////////////////////////////
313 # // SENF_PARSER_GOTO_*
315 # define SENF_PARSER_GOTO_var(name) \
316 SENF_PARSER_I_GOTO( BOOST_PP_CAT(senf_anon_, __LINE__), \
317 BOOST_PP_CAT(name, _offset)(), \
318 BOOST_PP_CAT(name, _init_bytes), \
321 # define SENF_PARSER_GOTO_fix(name) \
322 SENF_PARSER_I_GOTO( BOOST_PP_CAT(senf_anon_, __LINE__), \
323 BOOST_PP_CAT(name, _offset), \
324 BOOST_PP_CAT(name, _offset), \
327 # define SENF_PARSER_GOTO_OFFSET_var(offset, isize) \
328 SENF_PARSER_I_GOTO( BOOST_PP_CAT(senf_anon_, __LINE__), offset, isize, var )
330 # define SENF_PARSER_GOTO_OFFSET_fix(offset) \
331 SENF_PARSER_I_GOTO( BOOST_PP_CAT(senf_anon_, __LINE__), offset, offset, fix )
333 # define SENF_PARSER_I_GOTO(name, offset, initsize, ofstype) \
335 SENF_PARSER_I_BITFIELD_RESET() \
336 SENF_PARSER_I_FIELD_INTRO(name, void, private) \
337 SENF_PARSER_I_FIELD_INIT_ro(name, void, private) \
338 BOOST_PP_CAT( SENF_PARSER_I_GOTO_SET_OFS_, ofstype ) (name, offset, initsize) \
341 # define SENF_PARSER_I_GOTO_SET_OFS_var(name, offs, initsize) \
342 size_type field_offset_(senf::mpl::rv<BOOST_PP_CAT(name,_index)>*) const { \
345 SENF_MPL_SLOT_SET(init_bytes, initsize);
347 # define SENF_PARSER_I_GOTO_SET_OFS_fix(name, offs, initsize) \
348 SENF_MPL_SLOT_SET(offset, offs);
350 # ///////////////////////////////////////////////////////////////////////////
351 # // SENF_PARSER_LABEL_*
353 # define SENF_PARSER_LABEL_var(name) SENF_PARSER_I_LABEL( name, var, public )
354 # define SENF_PARSER_LABEL_fix(name) SENF_PARSER_I_LABEL( name, fix, public )
356 # define SENF_PARSER_I_LABEL(name, ofstype, access) \
358 SENF_PARSER_I_BITFIELD_RESET() \
359 SENF_PARSER_I_FIELD_INTRO(name, void, access) \
360 SENF_PARSER_I_FIELD_INIT_ro(name, void, access) \
361 BOOST_PP_CAT(SENF_PARSER_I_FIELD_OFS_, ofstype) (name, type, access) \
362 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) (name, void, 0, 0,access) \
365 # ///////////////////////////////////////////////////////////////////////////
366 # // SENF_PARSER_OFFSET_*
368 # define SENF_PARSER_OFFSET_fix(name) BOOST_PP_CAT(name, _offset)
369 # define SENF_PARSER_OFFSET_var(name) BOOST_PP_CAT(name, _offset)()
371 # ///////////////////////////////////////////////////////////////////////////
372 # // SENF_PARSER_FIXED_OFFSET_*
374 # define SENF_PARSER_FIXED_OFFSET_fix(name) BOOST_PP_CAT(name, _offset)
375 # define SENF_PARSER_FIXED_OFFSET_var(name) BOOST_PP_CAT(name, _init_bytes)
377 # ///////////////////////////////////////////////////////////////////////////
378 # // SENF_PARSER_FIXED_OFFSET_*
380 # define SENF_PARSER_CURRENT_FIXED_OFFSET_fix() SENF_MPL_SLOT_GET(offset)
381 # define SENF_PARSER_CURRENT_FIXED_OFFSET_var() SENF_MPL_SLOT_GET(init_bytes)
383 # ///////////////////////////////////////////////////////////////////////////
384 # // SENF_PARSER_FINALIZE_*
386 # define SENF_PARSER_FINALIZE_var(name) \
387 SENF_PARSER_FINALIZE_GENERIC(name) \
388 size_type bytes() const { \
389 return field_offset_(static_cast<senf::mpl::rv<SENF_MPL_SLOT_GET(index)>*>(0)); \
391 static size_type const init_bytes = SENF_MPL_SLOT_GET(init_bytes)
393 # define SENF_PARSER_FINALIZE_fix(name) \
394 SENF_PARSER_FINALIZE_GENERIC(name) \
395 static size_type const fixed_bytes = SENF_MPL_SLOT_GET(offset);
397 # define SENF_PARSER_FINALIZE_GENERIC(name) \
398 void defaultInit() const { \
399 init_chain(static_cast<senf::mpl::rv<SENF_MPL_SLOT_GET(index)>*>(0)); \
401 name(data_iterator i, state_type s) : parser_base_type(i,s) {} \
403 template <class T> void init(T) const { defaultInit(); } \
405 void init() const { init(0); }
407 # ////////////////////////////////ih.e///////////////////////////////////////
411 # // Local Variables:
413 # // fill-column: 100
414 # // c-file-style: "senf"
415 # // indent-tabs-mode: nil
416 # // ispell-local-dictionary: "american"
417 # // compile-command: "scons -u test"