1 # // Copyright (C) 2007
2 # // Fraunhofer Institut fuer offene Kommunikationssysteme (FOKUS)
3 # // Kompetenzzentrum fuer Satelitenkommunikation (SatCom)
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>*) {} \
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>*) {} \
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>*) { \
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>*) { \
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_RO_var(name, type) SENF_PARSER_FIELD_I(name, type, var, ro, private)
94 # define SENF_PARSER_P_FIELD_fix(name, type) SENF_PARSER_FIELD_I(name, type, fix, rw, private)
95 # define SENF_PARSER_P_FIELD_RO_fix(name, type) SENF_PARSER_FIELD_I(name, type, fix, ro, private)
97 # define SENF_PARSER_FIELD_I(name, type, ofstype, rwtype, access) \
99 SENF_PARSER_I_BITFIELD_RESET() \
100 SENF_PARSER_I_FIELD_INTRO(name, type, access) \
101 BOOST_PP_CAT(SENF_PARSER_I_FIELD_INIT_, rwtype) (name, type, access) \
102 BOOST_PP_CAT(SENF_PARSER_I_FIELD_OFS_, ofstype) (name, type, access) \
103 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) ( \
105 BOOST_PP_CAT(SENF_PARSER_I_SIZE_, ofstype) (name, type), \
106 BOOST_PP_CAT(SENF_PARSER_I_INITBYTES_, ofstype) (name, type), \
108 BOOST_PP_CAT(SENF_PARSER_I_FIELD_VAL_, rwtype) (name, type, ofstype, access) \
111 # ////////////////////////////////////////
112 # // SENF_PARSER_I_FIELD_INTRO
114 # define SENF_PARSER_I_FIELD_INTRO(name, type, access) \
115 typedef type BOOST_PP_CAT(name, _t); \
116 static size_type const BOOST_PP_CAT(name,_index) = SENF_MPL_SLOT_GET(index)+1; \
118 SENF_MPL_SLOT_SET(index, BOOST_PP_CAT(name,_index)); \
121 # ////////////////////////////////////////
122 # // SENF_PARSER_I_FIELD_INIT_*
124 # define SENF_PARSER_I_FIELD_INIT_rw(name, type, access) \
126 void init_chain(senf::mpl::rv<BOOST_PP_CAT(name,_index)>*) { \
127 init_chain(static_cast<senf::mpl::rv<BOOST_PP_CAT(name,_index)-1>*>(0)); \
132 # define SENF_PARSER_I_FIELD_INIT_ro(name, type, access) \
134 void init_chain(senf::mpl::rv<BOOST_PP_CAT(name,_index)>*) { \
135 init_chain(static_cast<senf::mpl::rv<BOOST_PP_CAT(name,_index)-1>*>(0)); \
139 # ////////////////////////////////////////
140 # // SENF_PARSER_I_FIELD_OFS_*
142 # define SENF_PARSER_I_FIELD_OFS_var(name, type, access) \
143 size_type BOOST_PP_CAT(name,_offset)() const { \
144 return field_offset_(static_cast<senf::mpl::rv<BOOST_PP_CAT(name,_index)-1>*>(0)); \
147 # define SENF_PARSER_I_FIELD_OFS_fix(name, type, access) \
148 static size_type const BOOST_PP_CAT(name, _offset) = SENF_MPL_SLOT_GET(offset);
150 # ////////////////////////////////////////
151 # // SENF_PARSER_I_ADVANCE_OFS_*
153 # // Can't call 'name()' here if 'name' is an ro field ...
154 # define SENF_PARSER_I_SIZE_var(name, type) senf::bytes(parse<type>(BOOST_PP_CAT(name,_offset)()))
155 # define SENF_PARSER_I_INITBYTES_var(name, type) senf::init_bytes<type>::value
157 # define SENF_PARSER_I_SIZE_fix(name, type) type::fixed_bytes
158 # define SENF_PARSER_I_INITBYTES_fix(name, type) void
160 # define SENF_PARSER_I_ADVANCE_OFS_var(name, type, size, isize, access) \
161 size_type BOOST_PP_CAT(name, _next_offset)() const { \
162 return BOOST_PP_CAT(name,_offset)() + size; \
164 static size_type const BOOST_PP_CAT(name, _init_bytes) = SENF_MPL_SLOT_GET(init_bytes); \
165 static size_type const BOOST_PP_CAT(name, _next_init_bytes) = \
166 BOOST_PP_CAT(name, _init_bytes) + isize; \
168 size_type field_offset_(senf::mpl::rv<BOOST_PP_CAT(name,_index)>*) const { \
169 return BOOST_PP_CAT(name, _next_offset)(); \
171 SENF_MPL_SLOT_SET(init_bytes, BOOST_PP_CAT(name,_next_init_bytes)); \
174 # define SENF_PARSER_I_ADVANCE_OFS_fix(name, type, size, isize, access) \
175 static size_type const BOOST_PP_CAT(name, _next_offset) = \
176 BOOST_PP_CAT(name, _offset) + size; \
178 SENF_MPL_SLOT_SET(offset, BOOST_PP_CAT(name, _next_offset)); \
181 # ////////////////////////////////////////
182 # // SENF_PARSER_I_FIELD_VAL_*
184 # define SENF_PARSER_I_MAYBECALL_var() ()
185 # define SENF_PARSER_I_MAYBECALL_fix()
187 # define SENF_PARSER_I_FIELD_VAL_rw(name, type, ofstype, access) \
188 BOOST_PP_CAT(name, _t) name() const { \
189 return parse<type>( \
190 BOOST_PP_CAT(name,_offset) BOOST_PP_CAT(SENF_PARSER_I_MAYBECALL_, ofstype)()); \
193 # define SENF_PARSER_I_FIELD_VAL_ro(name, type, ofstype, access) \
194 BOOST_PP_CAT(name, _t)::value_type name() const { \
195 return parse<type>( \
196 BOOST_PP_CAT(name,_offset) BOOST_PP_CAT(SENF_PARSER_I_MAYBECALL_, ofstype)()) \
200 # ///////////////////////////////////////////////////////////////////////////
201 # // SENF_PARSER_CUSTOM_FIELD_*
203 # define SENF_PARSER_CUSTOM_FIELD_var(name, type, size, isize) \
204 SENF_PARSER_CUSTOM_FIELD_I(name, type, size, isize, var)
205 # define SENF_PARSER_CUSTOM_FIELD_fix(name, type, size) \
206 SENF_PARSER_CUSTOM_FIELD_I(name, type, size, size, fix)
208 # define SENF_PARSER_CUSTOM_FIELD_I(name, type, size, isize, ofstype) \
209 SENF_PARSER_I_BITFIELD_RESET() \
210 SENF_PARSER_I_FIELD_INTRO(name, type, public) \
211 SENF_PARSER_I_FIELD_INIT_ro(name, type, public) \
212 BOOST_PP_CAT(SENF_PARSER_I_FIELD_OFS_, ofstype) (name, type, public) \
213 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) (name, type, size, isize, public) \
214 BOOST_PP_CAT(name, _t) name() const
216 # ///////////////////////////////////////////////////////////////////////////
217 # // SENF_PARSER_BITFIELD_*
218 # // SENF_PARSER_P_BITFIELD_*
220 # define SENF_PARSER_BITFIELD_var(name, bits, type) \
221 SENF_PARSER_BITFIELD_I(name, bits, type, var, rw, public)
222 # define SENF_PARSER_BITFIELD_RO_var(name, bits, type) \
223 SENF_PARSER_BITFIELD_I(name, bits, type, var, ro, public)
224 # define SENF_PARSER_BITFIELD_fix(name, bits, type) \
225 SENF_PARSER_BITFIELD_I(name, bits, type, fix, rw, public)
226 # define SENF_PARSER_BITFIELD_RO_fix(name, bits, type) \
227 SENF_PARSER_BITFIELD_I(name, bits, type, fix, ro, public)
229 # define SENF_PARSER_P_BITFIELD_var(name, bits, type) \
230 SENF_PARSER_BITFIELD_I(name, bits, type, var, rw, private)
231 # define SENF_PARSER_P_BITFIELD_RO_var(name, bits, type) \
232 SENF_PARSER_BITFIELD_I(name, bits, type, var, ro, private)
233 # define SENF_PARSER_P_BITFIELD_fix(name, bits, type) \
234 SENF_PARSER_BITFIELD_I(name, bits, type, fix, rw, private)
235 # define SENF_PARSER_P_BITFIELD_RO_fix(name, bits, type) \
236 SENF_PARSER_BITFIELD_I(name, bits, type, fix, ro, private)
238 # ////////////////////////////////////////
239 # // SENF_PARSER_BITFIELD_I
241 # define SENF_PARSER_BITFIELD_TYPE_signed(start, bits) senf::Parse_IntField<start, start+bits>
242 # define SENF_PARSER_BITFIELD_TYPE_unsigned(start, bits) senf::Parse_UIntField<start, start+bits>
243 # define SENF_PARSER_BITFIELD_TYPE_bool(start, bits) senf::Parse_Flag<start>
245 # define SENF_PARSER_BITFIELD_I(name, bits, type, ofstype, rwtype, access) \
247 static size_type const BOOST_PP_CAT(name, _bit) = SENF_MPL_SLOT_GET(bit); \
249 SENF_MPL_SLOT_SET(bit, BOOST_PP_CAT(name, _bit) + bits); \
250 typedef BOOST_PP_CAT(SENF_PARSER_BITFIELD_TYPE_, type)( BOOST_PP_CAT(name, _bit), bits ) \
251 BOOST_PP_CAT(name,_bit_t ); \
253 SENF_PARSER_BITFIELD_II( name, bits, BOOST_PP_CAT(name, _bit_t), ofstype, rwtype, access) \
256 # define SENF_PARSER_BITFIELD_II(name, bits, type, ofstype, rwtype, access) \
257 SENF_PARSER_I_FIELD_INTRO(name, type, access) \
258 SENF_PARSER_I_FIELD_INIT_ro(name, type, access) \
259 BOOST_PP_CAT(SENF_PARSER_I_BITFIELD_OFS_, ofstype) (name, type, access) \
260 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) ( \
262 BOOST_PP_CAT(name, _t)::fixed_bytes, BOOST_PP_CAT(name, _t)::fixed_bytes, \
265 SENF_MPL_SLOT_SET(bitfield_size, BOOST_PP_CAT(name, _t)::fixed_bytes); \
267 BOOST_PP_CAT(SENF_PARSER_I_FIELD_VAL_, rwtype) (name, type, ofstype, access) \
270 # ////////////////////////////////////////
271 # // SENF_PARSER_I_BITFIELD_OFS_*
273 # define SENF_PARSER_I_BITFIELD_OFS_var(name, type, access) \
274 size_type BOOST_PP_CAT(name,_offset)() const { \
275 return field_offset_(static_cast<senf::mpl::rv<BOOST_PP_CAT(name,_index)-1>*>(0)) \
276 - SENF_MPL_SLOT_GET(bitfield_size); \
279 # define SENF_PARSER_I_BITFIELD_OFS_fix(name, type, access) \
280 static size_type const BOOST_PP_CAT(name, _offset) = SENF_MPL_SLOT_GET(offset) \
281 - SENF_MPL_SLOT_GET(bitfield_size);
283 # ////////////////////////////////////////
284 # // SENF_PARSER_I_BITFIELD_RESET
286 # define SENF_PARSER_I_BITFIELD_RESET() \
287 SENF_MPL_SLOT_SET(bit, 0); \
288 SENF_MPL_SLOT_SET(bitfield_size, 0);
290 # ///////////////////////////////////////////////////////////////////////////
291 # // SENF_PARSER_FINALIZE_*
293 # define SENF_PARSER_FINALIZE_var(name) \
294 SENF_PARSER_FINALIZE_GENERIC(name) \
295 size_type bytes() const { \
296 return field_offset_(static_cast<senf::mpl::rv<SENF_MPL_SLOT_GET(index)>*>(0)); \
298 static size_type const init_bytes = SENF_MPL_SLOT_GET(init_bytes)
300 # define SENF_PARSER_FINALIZE_fix(name) \
301 SENF_PARSER_FINALIZE_GENERIC(name) \
302 static size_type const fixed_bytes = SENF_MPL_SLOT_GET(offset);
304 # define SENF_PARSER_FINALIZE_GENERIC(name) \
305 void defaultInit() { \
306 init_chain(static_cast<senf::mpl::rv<SENF_MPL_SLOT_GET(index)>*>(0)); \
308 name(data_iterator i, state_type s) : parser_base_type(i,s) {} \
310 template <class T> void init(T) { defaultInit(); } \
312 void init() { init(0); }
314 # ///////////////////////////////////////////////////////////////////////////
315 # // SENF_PARSER_SKIP_*
317 # define SENF_PARSER_SKIP_var(bytes, ibytes) \
318 SENF_PARSER_I_SKIP( BOOST_PP_CAT(senf_anon_, __LINE__), bytes, ibytes, var)
320 # define SENF_PARSER_SKIP_fix(bytes) \
321 SENF_PARSER_I_SKIP( BOOST_PP_CAT(senf_anon_, __LINE__), bytes, bytes, fix)
323 # define SENF_PARSER_I_SKIP(name, bytes, ibytes, ofstype) \
325 SENF_PARSER_I_BITFIELD_RESET() \
326 SENF_PARSER_I_FIELD_INTRO(name, void, private) \
327 SENF_PARSER_I_FIELD_INIT_ro(name, void, private) \
328 BOOST_PP_CAT(SENF_PARSER_I_FIELD_OFS_, ofstype) (name, type, access) \
329 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) (name, void, bytes, ibytes, private) \
332 # ///////////////////////////////////////////////////////////////////////////
333 # // SENF_PARSER_SKIP_BITS_*
335 # define SENF_PARSER_SKIP_BITS_var(bits) SENF_PARSER_I_SKIP_BITS(bits, var)
336 # define SENF_PARSER_SKIP_BITS_fix(bits) SENF_PARSER_I_SKIP_BITS(bits, fix)
338 # define SENF_PARSER_I_SKIP_BITS(bits, ofstype) \
339 SENF_MPL_SLOT_SET(bit, SENF_MPL_SLOT_GET(bit) + bits)
341 # ///////////////////////////////////////////////////////////////////////////
342 # // SENF_PARSER_GOTO_*
344 # define SENF_PARSER_GOTO_var(name) \
345 SENF_PARSER_I_GOTO( BOOST_PP_CAT(senf_anon_, __LINE__), \
346 BOOST_PP_CAT(name, _offset)(), \
347 BOOST_PP_CAT(name, _init_bytes), \
350 # define SENF_PARSER_GOTO_fix(name) \
351 SENF_PARSER_I_GOTO( BOOST_PP_CAT(senf_anon_, __LINE__), \
352 BOOST_PP_CAT(name, _offset), \
353 BOOST_PP_CAT(name, _offset), \
356 # define SENF_PARSER_GOTO_OFFSET_var(offset, isize) \
357 SENF_PARSER_I_GOTO( BOOST_PP_CAT(senf_anon_, __LINE__), offset, isize, var )
359 # define SENF_PARSER_GOTO_OFFSET_fix(offset) \
360 SENF_PARSER_I_GOTO( BOOST_PP_CAT(senf_anon_, __LINE__), offset, offset, fix )
362 # define SENF_PARSER_I_GOTO(name, offset, initsize, ofstype) \
364 SENF_PARSER_I_BITFIELD_RESET() \
365 SENF_PARSER_I_FIELD_INTRO(name, void, private) \
366 SENF_PARSER_I_FIELD_INIT_ro(name, void, private) \
367 BOOST_PP_CAT( SENF_PARSER_I_GOTO_SET_OFS_, ofstype ) (name, offset, initsize) \
370 # define SENF_PARSER_I_GOTO_SET_OFS_var(name, offs, initsize) \
371 size_type field_offset_(senf::mpl::rv<BOOST_PP_CAT(name,_index)>*) const { \
374 SENF_MPL_SLOT_SET(init_bytes, initsize);
376 # define SENF_PARSER_I_GOTO_SET_OFS_fix(name, offs, initsize) \
377 SENF_MPL_SLOT_SET(offset, offs);
379 # ///////////////////////////////////////////////////////////////////////////
380 # // SENF_PARSER_LABEL_*
382 # define SENF_PARSER_LABEL_var(name) SENF_PARSER_I_LABEL( name, var, public )
383 # define SENF_PARSER_LABEL_fix(name) SENF_PARSER_I_LABEL( name, fix, public )
385 # define SENF_PARSER_I_LABEL(name, ofstype, access) \
387 SENF_PARSER_I_BITFIELD_RESET() \
388 SENF_PARSER_I_FIELD_INTRO(name, void, access) \
389 SENF_PARSER_I_FIELD_INIT_ro(name, void, access) \
390 BOOST_PP_CAT(SENF_PARSER_I_FIELD_OFS_, ofstype) (name, type, access) \
391 BOOST_PP_CAT(SENF_PARSER_I_ADVANCE_OFS_, ofstype) (name, void, 0, 0,access) \
394 # ////////////////////////////////ih.e///////////////////////////////////////
398 # // Local Variables:
400 # // fill-column: 100
401 # // c-file-style: "senf"
402 # // indent-tabs-mode: nil
403 # // ispell-local-dictionary: "american"
404 # // compile-command: "scons -u test"