1 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
---|
2 | // basic_xml_grammar.ipp: |
---|
3 | |
---|
4 | // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . |
---|
5 | // Use, modification and distribution is subject to the Boost Software |
---|
6 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
---|
7 | // http://www.boost.org/LICENSE_1_0.txt) |
---|
8 | |
---|
9 | // See http://www.boost.org for updates, documentation, and revision history. |
---|
10 | |
---|
11 | #if (defined _MSC_VER) && (_MSC_VER == 1200) |
---|
12 | # pragma warning (disable : 4786) // too long name, harmless warning |
---|
13 | #endif |
---|
14 | |
---|
15 | #include <istream> |
---|
16 | #include <algorithm> |
---|
17 | #include <boost/config.hpp> // BOOST_DEDUCED_TYPENAME |
---|
18 | |
---|
19 | // spirit stuff |
---|
20 | #include <boost/spirit/core/composite/operators.hpp> |
---|
21 | #include <boost/spirit/core/composite/actions.hpp> |
---|
22 | #include <boost/spirit/core/primitives/numerics.hpp> |
---|
23 | |
---|
24 | // for head_iterator test |
---|
25 | #include <boost/bind.hpp> |
---|
26 | #include <boost/function.hpp> |
---|
27 | #include <boost/pfto.hpp> |
---|
28 | |
---|
29 | #include <boost/io/ios_state.hpp> |
---|
30 | #include <boost/throw_exception.hpp> |
---|
31 | #include <boost/archive/impl/basic_xml_grammar.hpp> |
---|
32 | #include <boost/archive/basic_xml_archive.hpp> |
---|
33 | #include <boost/archive/iterators/xml_unescape.hpp> |
---|
34 | |
---|
35 | using namespace boost::spirit; |
---|
36 | |
---|
37 | namespace boost { |
---|
38 | namespace archive { |
---|
39 | |
---|
40 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
---|
41 | // template code for basic_xml_grammar of both wchar_t and char types |
---|
42 | |
---|
43 | namespace { // anonymous |
---|
44 | |
---|
45 | template<class T> |
---|
46 | struct assign_impl { |
---|
47 | T & t; |
---|
48 | void operator()(const T t_) const { |
---|
49 | t = t_; |
---|
50 | } |
---|
51 | assign_impl(T & t_) |
---|
52 | : t(t_) |
---|
53 | {} |
---|
54 | }; |
---|
55 | |
---|
56 | template<> |
---|
57 | struct assign_impl<std::string> { |
---|
58 | std::string & t; |
---|
59 | void operator()( |
---|
60 | std::string::const_iterator b, |
---|
61 | std::string::const_iterator e |
---|
62 | ) const { |
---|
63 | t.resize(0); |
---|
64 | while(b != e){ |
---|
65 | t += * b; |
---|
66 | ++b; |
---|
67 | } |
---|
68 | } |
---|
69 | assign_impl(std::string & t_) |
---|
70 | : t(t_) |
---|
71 | {} |
---|
72 | }; |
---|
73 | |
---|
74 | #ifndef BOOST_NO_STD_WSTRING |
---|
75 | template<> |
---|
76 | struct assign_impl<std::wstring> { |
---|
77 | std::wstring & t; |
---|
78 | void operator()( |
---|
79 | std::wstring::const_iterator b, |
---|
80 | std::wstring::const_iterator e |
---|
81 | ) const { |
---|
82 | t.resize(0); |
---|
83 | while(b != e){ |
---|
84 | t += * b; |
---|
85 | ++b; |
---|
86 | } |
---|
87 | } |
---|
88 | assign_impl(std::wstring & t_) |
---|
89 | : t(t_) |
---|
90 | {} |
---|
91 | }; |
---|
92 | #endif |
---|
93 | |
---|
94 | template<class T> |
---|
95 | assign_impl<T> assign_object(T &t){ |
---|
96 | return assign_impl<T>(t); |
---|
97 | } |
---|
98 | |
---|
99 | struct assign_level { |
---|
100 | tracking_type & tracking_level; |
---|
101 | void operator()(const unsigned int tracking_level_) const { |
---|
102 | tracking_level = (0 == tracking_level_) ? false : true; |
---|
103 | } |
---|
104 | assign_level(tracking_type & tracking_level_) |
---|
105 | : tracking_level(tracking_level_) |
---|
106 | {} |
---|
107 | }; |
---|
108 | |
---|
109 | template<class String, class Iterator> |
---|
110 | struct append_string { |
---|
111 | String & contents; |
---|
112 | void operator()(Iterator start, Iterator end) const { |
---|
113 | #if 0 |
---|
114 | typedef boost::archive::iterators::xml_unescape<Iterator> translator; |
---|
115 | contents.append( |
---|
116 | translator(BOOST_MAKE_PFTO_WRAPPER(start)), |
---|
117 | translator(BOOST_MAKE_PFTO_WRAPPER(end)) |
---|
118 | ); |
---|
119 | #endif |
---|
120 | contents.append(start, end); |
---|
121 | } |
---|
122 | append_string(String & contents_) |
---|
123 | : contents(contents_) |
---|
124 | {} |
---|
125 | }; |
---|
126 | |
---|
127 | template<class String> |
---|
128 | struct append_char { |
---|
129 | String & contents; |
---|
130 | void operator()(const unsigned int char_value) const { |
---|
131 | const typename String::value_type z = char_value; |
---|
132 | contents += z; |
---|
133 | } |
---|
134 | append_char(String & contents_) |
---|
135 | : contents(contents_) |
---|
136 | {} |
---|
137 | }; |
---|
138 | |
---|
139 | template<class String, unsigned int c> |
---|
140 | struct append_lit { |
---|
141 | String & contents; |
---|
142 | template<class X, class Y> |
---|
143 | void operator()(const X & /*x*/, const Y & /*y*/) const { |
---|
144 | const typename String::value_type z = c; |
---|
145 | contents += z; |
---|
146 | } |
---|
147 | append_lit(String & contents_) |
---|
148 | : contents(contents_) |
---|
149 | {} |
---|
150 | }; |
---|
151 | |
---|
152 | } // namespace anonymous |
---|
153 | |
---|
154 | template<class CharType> |
---|
155 | bool basic_xml_grammar<CharType>::my_parse( |
---|
156 | BOOST_DEDUCED_TYPENAME basic_xml_grammar<CharType>::IStream & is, |
---|
157 | const rule_t & rule_, |
---|
158 | CharType delimiter |
---|
159 | ){ |
---|
160 | if(is.fail()){ |
---|
161 | boost::throw_exception( |
---|
162 | archive_exception(archive_exception::stream_error) |
---|
163 | ); |
---|
164 | } |
---|
165 | |
---|
166 | boost::io::ios_flags_saver ifs(is); |
---|
167 | is >> std::noskipws; |
---|
168 | |
---|
169 | std::basic_string<CharType> arg; |
---|
170 | |
---|
171 | CharType val; |
---|
172 | do{ |
---|
173 | val = is.get(); |
---|
174 | arg += val; |
---|
175 | if(is.fail()) |
---|
176 | return false; |
---|
177 | } |
---|
178 | while(val != delimiter); |
---|
179 | |
---|
180 | // read just one more character. This will be the newline after the tag |
---|
181 | // this is so that the next operation will return fail if the archive |
---|
182 | // is terminated. This will permit the archive to be used for debug |
---|
183 | // and transaction data logging in the standard way. |
---|
184 | |
---|
185 | parse_info<BOOST_DEDUCED_TYPENAME std::basic_string<CharType>::iterator> result |
---|
186 | = boost::spirit::parse(arg.begin(), arg.end(), rule_); |
---|
187 | return result.hit; |
---|
188 | } |
---|
189 | |
---|
190 | template<class CharType> |
---|
191 | bool basic_xml_grammar<CharType>::parse_start_tag( |
---|
192 | BOOST_DEDUCED_TYPENAME basic_xml_grammar<CharType>::IStream & is |
---|
193 | ) { |
---|
194 | if(is.fail()){ |
---|
195 | boost::throw_exception( |
---|
196 | archive_exception(archive_exception::stream_error) |
---|
197 | ); |
---|
198 | } |
---|
199 | rv.class_name.resize(0); |
---|
200 | return my_parse(is, STag); |
---|
201 | } |
---|
202 | |
---|
203 | template<class CharType> |
---|
204 | bool basic_xml_grammar<CharType>::parse_end_tag(IStream & is) { |
---|
205 | if(is.fail()){ |
---|
206 | boost::throw_exception( |
---|
207 | archive_exception(archive_exception::stream_error) |
---|
208 | ); |
---|
209 | } |
---|
210 | return my_parse(is, ETag); |
---|
211 | } |
---|
212 | |
---|
213 | template<class CharType> |
---|
214 | bool basic_xml_grammar<CharType>::parse_string(IStream & is, StringType & s) { |
---|
215 | if(is.fail()){ |
---|
216 | boost::throw_exception( |
---|
217 | archive_exception(archive_exception::stream_error) |
---|
218 | ); |
---|
219 | } |
---|
220 | rv.contents.resize(0); |
---|
221 | bool result = my_parse(is, content, '<'); |
---|
222 | // note: unget caused a problem with dinkumware. replace with |
---|
223 | // is.unget(); |
---|
224 | // putback another dilimiter instead |
---|
225 | is.putback('<'); |
---|
226 | if(result) |
---|
227 | s = rv.contents; |
---|
228 | return result; |
---|
229 | } |
---|
230 | |
---|
231 | template<class CharType> |
---|
232 | basic_xml_grammar<CharType>::basic_xml_grammar(){ |
---|
233 | init_chset(); |
---|
234 | |
---|
235 | S = |
---|
236 | +(Sch) |
---|
237 | ; |
---|
238 | |
---|
239 | // refactoring to workaround template depth on darwin |
---|
240 | NameHead = (Letter | '_' | ':'); |
---|
241 | NameTail = *NameChar ; |
---|
242 | Name = |
---|
243 | NameHead >> NameTail |
---|
244 | ; |
---|
245 | |
---|
246 | Eq = |
---|
247 | !S >> '=' >> !S |
---|
248 | ; |
---|
249 | |
---|
250 | AttributeList = |
---|
251 | *(S >> Attribute) |
---|
252 | ; |
---|
253 | |
---|
254 | STag = |
---|
255 | !S |
---|
256 | >> '<' |
---|
257 | >> Name [assign_object(rv.object_name)] |
---|
258 | >> AttributeList |
---|
259 | >> !S |
---|
260 | >> '>' |
---|
261 | ; |
---|
262 | |
---|
263 | ETag = |
---|
264 | !S |
---|
265 | >> "</" |
---|
266 | >> Name [assign_object(rv.object_name)] |
---|
267 | >> !S |
---|
268 | >> '>' |
---|
269 | ; |
---|
270 | |
---|
271 | // refactoring to workaround template depth on darwin |
---|
272 | CharDataChars = *(anychar_p - chset_p(L"&<")); |
---|
273 | CharData = |
---|
274 | CharDataChars [ |
---|
275 | append_string< |
---|
276 | StringType, |
---|
277 | BOOST_DEDUCED_TYPENAME std::basic_string<CharType>::const_iterator |
---|
278 | >(rv.contents) |
---|
279 | ] |
---|
280 | ; |
---|
281 | |
---|
282 | // slight factoring works around ICE in msvc 6.0 |
---|
283 | CharRef1 = |
---|
284 | str_p(L"&#") >> uint_p [append_char<StringType>(rv.contents)] >> L';' |
---|
285 | ; |
---|
286 | CharRef2 = |
---|
287 | str_p(L"&#x") >> hex_p [append_char<StringType>(rv.contents)] >> L';' |
---|
288 | ; |
---|
289 | CharRef = CharRef1 | CharRef2 ; |
---|
290 | |
---|
291 | AmpRef = str_p(L"&")[append_lit<StringType, L'&'>(rv.contents)]; |
---|
292 | LTRef = str_p(L"<")[append_lit<StringType, L'<'>(rv.contents)]; |
---|
293 | GTRef = str_p(L">")[append_lit<StringType, L'>'>(rv.contents)]; |
---|
294 | AposRef = str_p(L"'")[append_lit<StringType, L'\''>(rv.contents)]; |
---|
295 | QuoteRef = str_p(L""")[append_lit<StringType, L'"'>(rv.contents)]; |
---|
296 | |
---|
297 | Reference = |
---|
298 | AmpRef |
---|
299 | | LTRef |
---|
300 | | GTRef |
---|
301 | | AposRef |
---|
302 | | QuoteRef |
---|
303 | | CharRef |
---|
304 | ; |
---|
305 | |
---|
306 | content = |
---|
307 | L"<" // should be end_p |
---|
308 | | (Reference | CharData) >> content |
---|
309 | ; |
---|
310 | |
---|
311 | ClassIDAttribute = |
---|
312 | str_p(CLASS_ID()) >> NameTail |
---|
313 | >> Eq |
---|
314 | >> L'"' |
---|
315 | >> int_p [assign_object(rv.class_id.t)] |
---|
316 | >> L'"' |
---|
317 | ; |
---|
318 | |
---|
319 | ObjectIDAttribute = |
---|
320 | (str_p(OBJECT_ID()) | str_p(OBJECT_REFERENCE()) ) |
---|
321 | >> NameTail |
---|
322 | >> Eq |
---|
323 | >> L'"' |
---|
324 | >> L'_' |
---|
325 | >> uint_p [assign_object(rv.object_id.t)] |
---|
326 | >> L'"' |
---|
327 | ; |
---|
328 | |
---|
329 | AmpName = str_p(L"&")[append_lit<StringType, L'&'>(rv.class_name)]; |
---|
330 | LTName = str_p(L"<")[append_lit<StringType, L'<'>(rv.class_name)]; |
---|
331 | GTName = str_p(L">")[append_lit<StringType, L'>'>(rv.class_name)]; |
---|
332 | ClassNameChar = |
---|
333 | AmpName |
---|
334 | | LTName |
---|
335 | | GTName |
---|
336 | | (anychar_p - chset_p(L"\"")) [append_char<StringType>(rv.class_name)] |
---|
337 | ; |
---|
338 | |
---|
339 | ClassName = |
---|
340 | * ClassNameChar |
---|
341 | ; |
---|
342 | |
---|
343 | ClassNameAttribute = |
---|
344 | str_p(CLASS_NAME()) |
---|
345 | >> Eq |
---|
346 | >> L'"' |
---|
347 | >> ClassName |
---|
348 | >> L'"' |
---|
349 | ; |
---|
350 | |
---|
351 | TrackingAttribute = |
---|
352 | str_p(TRACKING()) |
---|
353 | >> Eq |
---|
354 | >> L'"' |
---|
355 | >> uint_p [assign_level(rv.tracking_level)] |
---|
356 | >> L'"' |
---|
357 | ; |
---|
358 | |
---|
359 | VersionAttribute = |
---|
360 | str_p(VERSION()) |
---|
361 | >> Eq |
---|
362 | >> L'"' |
---|
363 | >> uint_p [assign_object(rv.version.t)] |
---|
364 | >> L'"' |
---|
365 | ; |
---|
366 | |
---|
367 | UnusedAttribute = |
---|
368 | Name |
---|
369 | >> Eq |
---|
370 | >> L'"' |
---|
371 | >> CharData |
---|
372 | >> L'"' |
---|
373 | ; |
---|
374 | |
---|
375 | Attribute = |
---|
376 | ClassIDAttribute |
---|
377 | | ObjectIDAttribute |
---|
378 | | ClassNameAttribute |
---|
379 | | TrackingAttribute |
---|
380 | | VersionAttribute |
---|
381 | | UnusedAttribute |
---|
382 | ; |
---|
383 | |
---|
384 | XMLDeclChars = *(anychar_p - chset_p(L"?>")); |
---|
385 | XMLDecl = |
---|
386 | !S |
---|
387 | >> str_p(L"<?xml") |
---|
388 | >> S |
---|
389 | >> str_p(L"version") |
---|
390 | >> Eq |
---|
391 | >> str_p(L"\"1.0\"") |
---|
392 | >> XMLDeclChars |
---|
393 | >> !S |
---|
394 | >> str_p(L"?>") |
---|
395 | ; |
---|
396 | |
---|
397 | DocTypeDeclChars = *(anychar_p - chset_p(L">")); |
---|
398 | DocTypeDecl = |
---|
399 | !S |
---|
400 | >> str_p(L"<!DOCTYPE") |
---|
401 | >> DocTypeDeclChars |
---|
402 | >> L'>' |
---|
403 | ; |
---|
404 | |
---|
405 | SignatureAttribute = |
---|
406 | str_p(L"signature") |
---|
407 | >> Eq |
---|
408 | >> L'"' |
---|
409 | >> Name [assign_object(rv.class_name)] |
---|
410 | >> L'"' |
---|
411 | ; |
---|
412 | |
---|
413 | SerializationWrapper = |
---|
414 | !S |
---|
415 | >> str_p(L"<boost_serialization") |
---|
416 | >> S |
---|
417 | >> SignatureAttribute |
---|
418 | >> S |
---|
419 | >> VersionAttribute |
---|
420 | >> !S |
---|
421 | >> L'>' |
---|
422 | ; |
---|
423 | } |
---|
424 | |
---|
425 | template<class CharType> |
---|
426 | void basic_xml_grammar<CharType>::init(IStream & is){ |
---|
427 | init_chset(); |
---|
428 | if(! my_parse(is, XMLDecl)) |
---|
429 | boost::throw_exception( |
---|
430 | xml_archive_exception(xml_archive_exception::xml_archive_parsing_error) |
---|
431 | ); |
---|
432 | if(! my_parse(is, DocTypeDecl)) |
---|
433 | boost::throw_exception( |
---|
434 | xml_archive_exception(xml_archive_exception::xml_archive_parsing_error) |
---|
435 | ); |
---|
436 | if(! my_parse(is, SerializationWrapper)) |
---|
437 | boost::throw_exception( |
---|
438 | xml_archive_exception(xml_archive_exception::xml_archive_parsing_error) |
---|
439 | ); |
---|
440 | if(! std::equal(rv.class_name.begin(), rv.class_name.end(), ARCHIVE_SIGNATURE())) |
---|
441 | boost::throw_exception( |
---|
442 | archive_exception(archive_exception::invalid_signature) |
---|
443 | ); |
---|
444 | } |
---|
445 | |
---|
446 | template<class CharType> |
---|
447 | void basic_xml_grammar<CharType>::windup(IStream & is){ |
---|
448 | if(is.fail()) |
---|
449 | return; |
---|
450 | // uh-oh - don't exception from code called by a destructor ! |
---|
451 | // so just ignore any failure. |
---|
452 | my_parse(is, ETag); |
---|
453 | } |
---|
454 | |
---|
455 | } // namespace archive |
---|
456 | } // namespace boost |
---|