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[ptr_container] feature request: BOOST_PTR_CONTAINER_NO_SERIALIZATION
by Sebastian Ramacher 25 Jun '07

25 Jun '07

As of version 1.34, Boost.PtrContainer supports serialization as defined by Boost.Serialization. Now I'd like to propose a switch to disable this feature. The attached patch adds checks if BOOST_PTR_CONTAINER_NO_SERIALZATION is defined around the serialization related code blocks and enables/disables serialization support. It's not that I don't like serialization support but on a Debian system you have to install libboost-serialization-dev and libboost-serialization1.34.0 just to use Boost.PtrContainer. The patch was created against CVS HEAD but I'd gladly provide a patch against 1.34 if it finds any interest. Regards, Sebastian Index: ptr_array.hpp =================================================================== RCS file: /cvsroot/boost/boost/boost/ptr_container/ptr_array.hpp,v retrieving revision 1.9 diff -u -r1.9 ptr_array.hpp --- ptr_array.hpp 16 Feb 2006 23:38:36 -0000 1.9 +++ ptr_array.hpp 28 May 2007 13:35:29 -0000 @@ -190,6 +190,7 @@ return this->c_private()[idx] == 0; } +#ifndef BOOST_PTR_CONTAINER_NO_SERIALIZATION public: // serialization template< class Archive > @@ -214,7 +215,7 @@ } BOOST_SERIALIZATION_SPLIT_MEMBER() - +#endif }; ////////////////////////////////////////////////////////////////////////////// Index: ptr_map_adapter.hpp =================================================================== RCS file: /cvsroot/boost/boost/boost/ptr_container/ptr_map_adapter.hpp,v retrieving revision 1.26 diff -u -r1.26 ptr_map_adapter.hpp --- ptr_map_adapter.hpp 8 Mar 2006 23:16:00 -0000 1.26 +++ ptr_map_adapter.hpp 28 May 2007 13:36:09 -0000 @@ -291,6 +291,7 @@ return replace( where, x.release() ); } +#ifndef BOOST_PTR_CONTAINER_NO_SERIALIZATION public: // serialization template< class Archive > @@ -305,6 +306,7 @@ ar & ptr_container_detail::serialize_as_const( i->second ); } } +#endif }; } // ptr_container_detail @@ -472,6 +474,7 @@ return transfer( from.begin(), from.end(), from ); } +#ifndef BOOST_PTR_CONTAINER_NO_SERIALIZATION public: // serialization template< class Archive > @@ -493,7 +496,7 @@ } BOOST_SERIALIZATION_SPLIT_MEMBER() - +#endif }; ///////////////////////////////////////////////////////////////////////// @@ -647,6 +650,7 @@ BOOST_ASSERT( from.empty() ); } +#ifndef BOOST_PTR_CONTAINER_NO_SERIALIZATION public: // serialization template< class Archive > @@ -668,7 +672,7 @@ } BOOST_SERIALIZATION_SPLIT_MEMBER() - +#endif }; template< class I, class F, class S > Index: ptr_vector.hpp =================================================================== RCS file: /cvsroot/boost/boost/boost/ptr_container/ptr_vector.hpp,v retrieving revision 1.10 diff -u -r1.10 ptr_vector.hpp --- ptr_vector.hpp 18 Feb 2006 01:41:14 -0000 1.10 +++ ptr_vector.hpp 28 May 2007 13:35:09 -0000 @@ -53,6 +53,7 @@ this->c_private().reserve( n ); } +#ifndef BOOST_PTR_CONTAINER_NO_SERIALIZATION public: // serialization template< class Archive > @@ -66,7 +67,7 @@ } BOOST_SERIALIZATION_SPLIT_MEMBER() - +#endif }; ////////////////////////////////////////////////////////////////////////////// Index: detail/reversible_ptr_container.hpp =================================================================== RCS file: /cvsroot/boost/boost/boost/ptr_container/detail/reversible_ptr_container.hpp,v retrieving revision 1.24 diff -u -r1.24 reversible_ptr_container.hpp --- detail/reversible_ptr_container.hpp 6 Mar 2006 20:09:50 -0000 1.24 +++ detail/reversible_ptr_container.hpp 28 May 2007 13:35:10 -0000 @@ -35,7 +35,11 @@ #include <boost/utility/enable_if.hpp> #include <boost/type_traits/is_pointer.hpp> #include <boost/type_traits/is_integral.hpp> + +#ifndef BOOST_PTR_CONTAINER_NO_SERIALIZATION #include <boost/serialization/split_member.hpp> +#endif + #include <algorithm> #include <exception> #include <memory> @@ -46,12 +50,13 @@ namespace ptr_container_detail { - +#ifndef BOOST_PTR_CONTAINER_NO_SERIALIZATION template< class T > inline T const& serialize_as_const( T const& r ) { return r; } +#endif template< class CloneAllocator > struct clone_deleter @@ -545,6 +550,7 @@ return replace( idx, x.release() ); } +#ifndef BOOST_PTR_CONTAINER_NO_SERIALIZATION // // serialization // @@ -602,7 +608,7 @@ } BOOST_SERIALIZATION_SPLIT_MEMBER() - +#endif }; // 'reversible_ptr_container'

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[enable_if] usage in class specialization
by Maurizio Vitale 25 Jun '07

25 Jun '07

Good day, a while ago I've posted a message with the title 'enable_if: problems with Intel C++ 10.0.023'. Although correct, the title was maybe too narrow to capture attention, but the problem seems to be much wider. In short, the documentation for enable_if shows that it can be used for selecting a class specialization depending on a predicate. Now Intel C++ refuses to do that and the frontend team at Intel believes this is the right thing to do (although they'll look into the issue further for the sake of compatibility with GCC). Their argument is that the SFINAE rule applies to the selection of the overload set for functions only and not to partial specialization for classes. I don't have my copy of the standard handy (I keep loosing the pdf and I've already paid my $18 twice...), so I cannot check this. Are there known workarounds? Best regards, Maurizio I'm including my original post for reference. ================== Original Post ====================== The following is distilled from a much larger code base and exibits a discrepancy between gcc 4.2.0 and the Intel C++ compiler 10.0.23 (both under Linux). GCC compiles the example fine, while the Intel compiler chokes on the last statement, objecting that: ------------------------------ Intel error message ------------------------------ -*- mode: compilation; default-directory: "~/dev/proto_pdl/" -*- Compilation started at Thu Jun 21 16:34:47 /opt/intel/cce/10.0.023/bin/icpc -I. -obe be.cpp be.cpp(15): error: class "boost::enable_if<boost::is_same<B, A>, void>" has no member "type" struct foo<T, typename boost::enable_if<boost::is_same<X,A> >::type> ^ detected during instantiation of class "S<X> [with X=B]" at line 24 be.cpp(15): error: class "boost::enable_if<boost::is_same<B, A>, void>" has no member "type" struct foo<T, typename boost::enable_if<boost::is_same<X,A> >::type> ^ detected during instantiation of class "S<X> [with X=B]" at line 24 compilation aborted for be.cpp (code 2) It seems like the very mechanism on which enable_if is based (SFINAE rule) makes the intel compiler unhappy. The release notes for version 10 have a fragment that is suspicious: New -early-template-check Switch Even though recent versions of g++ (3.4 and newer) parse template definitions, they do very little semantic checking of such definitions. Most of the semantic checking is delayed until an actual instantiation is done. As a result, g++ accepts certain unusable templates provided they are not actually used in the program. A new option is available (-early-template-check) to allow Intel C++ users to check the semantics of function template prototypes before instantiation. Example: class A {}; template <class T> struct B { B () {}; // error with -early-template-check): no initializer for // reference member "B<T>::a" A& a; }; Note that this switch will work in gcc 3.4 and later compatibility modes only (i.e. -gcc-version=340 and later). This leads me to believe that when not in gcc compatibility mode they try to be more agressive and analyze template code prematurely (btw, the code included doesn't compile even with -gcc-version=420). What is the general opinion on the validity of enable_if w.r.t to the standard? Are there known workarounds for the Intel compiler? Best regards, Maurizio ------------------------------ Code ------------------------------ #include <boost/utility/enable_if.hpp> #include <boost/type_traits/is_same.hpp> struct A {}; struct B {}; template<typename X> struct S { template<typename T, typename Enable=void> struct foo { enum { value=0 }; }; template<typename T> struct foo<T, typename boost::enable_if<boost::is_same<X,A> >::type> { enum { value=1 }; }; }; int main () { int i = S<A>::foo<B>::value; int j = S<B>::foo<B>::value; // OK for g++ 4.2.0, NOK for Intel C++ 10.0.23 }

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Boost inspection notification (2007-06-25/RC_1_34_0) *LC*
by Rene Rivera 25 Jun '07

25 Jun '07

Boost Inspection Report Run Date: 16:06:11 UTC, Monday 25 June 2007 An inspection program <http://www.boost.org/tools/inspect/index.html> checks each file in the current Boost CVS for various problems, generating this as output. Problems detected include tabs in files, missing copyrights, broken URL's, and similar misdemeanors. Totals: 11452 files scanned 909 directories scanned (including root) 1059 problems reported Problem counts: 661 files missing Boost license info or having wrong reference text 398 files missing copyright notice Summary: any (1) archive (1) build (68) concept_check (22) conversion (5) doc (1) filesystem (2) function (1) graph (1) inspect (1) integer (9) lambda (10) libs (6) logic (2) math (1) more (13) mpl (417) multi_array (13) numeric (188) optional (1) people (4) program_options (35) property_map (15) ptr_container (8) python (14) rational (5) regex (4) regression (118) release (2) serialization (16) signals (2) smart_ptr (8) test (3) timer (1) tr1 (2) tuple (5) utility (12) variant (42) Details: *L* missing Boost license info, or wrong reference text *C* missing copyright notice |any| libs/any/doc/ any.xml: *L* |archive| boost/archive/detail/ utf8_codecvt_facet.hpp: *L* |build| tools/build/v2/build/ build-request.jam: *L* modifiers.jam: *L* tools/build/v2/doc/ Jamfile.v2: *C* *L* 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*L* check_existance.py: *C* *L* checked_system.py: *C* *L* libxslt.py: *C* *L* log.py: *C* *L* makedirs.py: *C* *L* send_mail.py: *C* *L* sourceforge.py: *C* *L* tar.py: *C* *L* zip.py: *C* *L* tools/regression/xsl_reports/xsl/v2/ expected_to_1_33_format.xsl: *C* *L* |release| tools/release/ utils.py: *C* *L* |serialization| libs/serialization/doc/ style.css: *C* *L* libs/serialization/example/ demo_output.txt: *C* *L* demo_save.xml: *C* *L* demofile.txt: *C* *L* libs/serialization/test/ run_archive_test.bat: *C* *L* runtest.bat: *C* *L* runtest.sh: *C* *L* libs/serialization/vc7ide/ readme.txt: *C* *L* |signals| libs/signals/doc/ tutorial.xml: *C* *L* |smart_ptr| libs/smart_ptr/ compatibility.htm: *L* scoped_array.htm: *L* scoped_ptr.htm: *L* shared_array.htm: *L* shared_ptr.htm: *L* smart_ptr.htm: *L* smarttests.htm: *L* weak_ptr.htm: *L* |test| boost/test/utils/runtime/cla/detail/ argument_value_usage.hpp: *L* libs/test/test/auto-link-test/ run_bjam.bat: *C* *L* |timer| libs/timer/ 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Boost inspection notification (2007-06-25/RC_1_34_0) *X*
by Rene Rivera 25 Jun '07

25 Jun '07

Boost Inspection Report Run Date: 16:06:05 UTC, Monday 25 June 2007 An inspection program <http://www.boost.org/tools/inspect/index.html> checks each file in the current Boost CVS for various problems, generating this as output. Problems detected include tabs in files, missing copyrights, broken URL's, and similar misdemeanors. Totals: 11452 files scanned 909 directories scanned (including root) 165 problems reported Problem counts: 0 files with invalid line endings 0 bookmarks with invalid characters 3 invalid urls 70 broken links 24 unlinked files 22 file/directory names issues 2 files with tabs 9 violations of the Boost min/max guidelines 35 usages of unnamed namespaces in headers (including .ipp files) Summary: archive (3) bind (1) build (1) date_time (1) doc (3) filesystem (3) graph (3) iostreams (2) lambda (3) math (8) more (4) mpl (4) multi_array (2) ptr_container (1) python (8) regex (1) regression (32) serialization (1) smart_ptr (2) test (81) type_traits (1) Details: *R* invalid (cr only) line-ending *A* invalid bookmarks, invalid urls, broken links, unlinked files *N* file/directory names issues *T* tabs in file *M* uses of min or max that have not been protected from the min/max macros, or unallowed #undef-s *U* unnamed namespace in header |archive| boost/archive/basic_streambuf_locale_saver.hpp: *N* name exceeds 31 characters boost/archive/impl/xml_wiarchive_impl.ipp: *U* unnamed namespace at line 53 boost/archive/iterators/remove_whitespace.hpp: *U* unnamed namespace at line 57 |bind| boost/bind/placeholders.hpp: *U* unnamed namespace at line 25 |build| tools/build/v2/test/test_system.html: *A* unlinked file |date_time| libs/date_time/xmldoc/date_time_docs_howto.html: *A* unlinked file |doc| doc/html/boost_math/inverse_complex.html: *A* unlinked file doc/html/jam.html: *A* unlinked file doc/html/typeof.html: *A* unlinked file |filesystem| libs/filesystem/doc/do-list.htm: *A* invalid URL (hardwired file): file://?/ *A* invalid URL (hardwired file): file://?/UNC/ libs/filesystem/doc/tr2_proposal.html: *A* invalid URL (hardwired file): file:///C|/boost/site/libs/filesystem/doc/operations.htm#complete_note |graph| boost/graph/relax.hpp: *T* libs/graph/example/file_dependencies.cpp: *M* violation of Boost min/max guidelines on line 139 libs/graph/test/serialize.cpp: *T* |iostreams| libs/iostreams/doc/concepts/multi-character.html: *A* unlinked file libs/iostreams/doc/installation.html: *A* broken link: ../../../tools/build/v1/build_system.htm |lambda| boost/lambda/core.hpp: *U* unnamed namespace at line 62 boost/lambda/detail/lambda_functors.hpp: *U* unnamed namespace at line 25 boost/lambda/exceptions.hpp: *U* unnamed namespace at line 24 |math| libs/math/test/common_factor_test.cpp: *M* violation of Boost min/max guidelines on line 146 *M* violation of Boost min/max guidelines on line 147 *M* violation of Boost min/max guidelines on line 193 *M* violation of Boost min/max guidelines on line 194 |more| more/cvs.html: *A* unlinked file more/getting_started/unix-variants.html: *A* broken link: ../../doc/html/thread/build.html#thread.build more/getting_started/windows.html: *A* broken link: ../../doc/html/thread/build.html#thread.build more/separate_compilation.html: *A* broken link: ../libs/config/test/link/test/Jamfile.v2 |mpl| boost/mpl/alias.hpp: *U* unnamed namespace at line 17 libs/mpl/doc/refmanual/for-each.html: *A* broken link: ./value-initialized.html |multi_array| boost/multi_array/base.hpp: *U* unnamed namespace at line 69 libs/multi_array/test/generative_tests.hpp: *U* unnamed namespace at line 57 |ptr_container| libs/ptr_container/doc/tutorial_example.html: *A* unlinked file |python| libs/python/doc/building.html: *A* broken link: ../index.htm libs/python/doc/tutorial/doc/html/python/hello.html: *A* broken link: ../../../../../example/tutorial/Jamrules libs/python/doc/tutorial/index.html: *A* broken link: ../../../LICENSE_1_0.txt libs/python/doc/v2/May2002.html: *A* broken link: ../../../../tools/build/v1/build_system.htm *A* broken link: ../../../../tools/build/v1/gen_aix_import_file.py libs/python/doc/v2/faq.html: *A* broken link: ../../../../tools/build/v1/build_system.htm |regex| libs/regex/performance/input.html: *A* unlinked file |regression| regression/.htaccess: *N* leading character of ".htaccess" is not alphabetic tools/regression/test/test-cases/incremental/bjam.log.1: *N* name contains more than one dot character ('.') tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/compile-fail.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/completed.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/compile-fail.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/completed.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/lib.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/misfire.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/no-run.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/run_pyd.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/expected/test-case.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/test-case.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_is_test_log_complete/test-driver.xsl: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_re_match/expected/test_re_match.xml: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ tools/regression/xsl_reports/test/test-components/test_test_case_status/explicit-failures-markup.xml.test: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ *N* name contains more than one dot character ('.') *N* name exceeds 31 characters tools/regression/xsl_reports/test/test-components/test_test_structure/explicit-failures-markup.xml.test: *N* file path will exceed 100 characters in a directory tree with a root of the form boost_X_XX_X/ *N* name contains more than one dot 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[Report] 1 regressions on RC_1_34_0 (2007-06-25)
by Douglas Gregor 25 Jun '07

25 Jun '07

Boost Regression test failures Report time: 2007-06-25T00:41:32Z This report lists all regression test failures on release platforms. Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-RC_1_34_0/developer/i… 1 failures in 1 libraries serialization (1) |serialization| test_list_xml_warchive_dll: msvc-8.0

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bind()ing a member boost::signal fails
by Slawomir Lisznianski 25 Jun '07

25 Jun '07

I'm trying to use bind() on a class member variable of type boost::signal but it fails with the message (GCC 4.0.2): /usr/include/boost/noncopyable.hpp:27: error: ‘boost::noncopyable_::noncopyable::noncopyable(const boost::noncopyable_::noncopyable&)’ is private /usr/include/boost/signals/detail/signal_base.hpp:120: error: within this context I understand that signals are non-copyable per design, yet I'd like to be able to bind them somehow ;-) Is there a better way of doing that other than through a member function acting as a forwarding agent? For example: #include <boost/signal.hpp> #include <boost/bind.hpp> #include <boost/function.hpp> using namespace boost; struct foo { signal0<void> on_event; void on_event_fwd() { on_event(); } }; int main(int, char**) { foo fo; function0<void> f = bind(&foo::on_event, &fo); <-- doesn't compile // forward to signal, oh well // function0<void> f = bind(&foo::on_event_fwd, &fo); return 0; } Cheers, Slawomir Lisznianski

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Sandbox structure (directory level for tags)
by Henrik Sundberg 25 Jun '07

25 Jun '07

These top level directories are found in the repository: sandbox/ sandbox-branches/ sandbox-tags/ And now I found this (yes, I did checkout the sandbox..): sandbox/SOC/2006/concurrency/ branches/ tags/ trunk/ http://svn.boost.org/trac/boost/wiki/BoostSandbox says that the sandbox should be organized by project. Should sandbox-branches and sandbox-tags be removed to make this more clear? /$

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Are we moving towards 1.35?
by Nicola Musatti 25 Jun '07

25 Jun '07

Hallo, I hope to be wrong, but I'm under the impression that, while everybody recognizes that issuing the libraries that have been detained by 1.34's delay is urgent, actual activity is stuck on a couple of strategic decisions. These are the structure of the Subversion repository and the new development process. Actually, I believe these are symptoms of a single meta-problem: how are strategic decisions taken within Boost? I can offer a few proposals: 1) S/he who does the job decides: unfair maybe but, hey, if you're interested, contribute! 2) The moderators decide: undemocratic, but then these are among the people that contributed the most and most continuously over the years; they gained the authority to make decisions on the field. 3) A poll is taken on the mailing list. 4) A non binding poll is taken on the mailing list, then the moderators decide. 5) The review process is used. In order to avoid the obvious bootstrap problem, I suggest that Doug Gregor and Beman Dawes get to choose how to reach a decision for the repository and the process, respectively. Cheers, Nicola Musatti

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ANNOUNCE: gnocchi 0.33 "complexity analyser" released
by Eddy Pronk 25 Jun '07

25 Jun '07

GNOCCHI - A COMPLEXITY ANALYSER FOR C++ Gnocchi calculates cyclomatic and the NPATH complexity measures. USES boost.graph boost.program_options boost.filesystem DESCRIPTION It reads the coverage information produced by GCC and determines the complexity of all functions. If code is compiled with -fprofile-arcs or -ftest-coverage (depending on compiler version) GCC creates a .gcno file for every object file. It now considers C++ exceptions as part of the output. mccabe=5(+4) means the complexity is 5 + 4 = 9 if exceptions are considered. example: gcc -fprofile-arcs -ftest-coverage -c test_input.c ./gnocchi --threshold 4 test_input.gcno outputs: test_input.c:118: mccabe=5 npath=5 test_input.c:89: mccabe=5(+4) npath=16(+15) test_input.c:67: mccabe=9 npath=80 you can the latest release here: http://gnocchi.sf.net http://sourceforge.net/projects/gnocchi Eddy

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Re: [boost] Boost documentation
by Joel de Guzman 25 Jun '07

25 Jun '07

Cédric Venet wrote: >> De : Guillaume Melquiond >> >> Le dimanche 24 juin 2007 à 11:04 +0200, Cédric Venet a écrit : >>> The fact is if one day, quick book is broken and not supported >> anymore, you >>> just have to use the last correct version to convert your quickbook >> doc into >>> docbook and work on the doc book. >> As far as I understand it, a short term goal of the quickbook >> developers >> is actually to get rid of the conversion to boostbook/docbook. So it >> won't be as easy as you make it sound to get back to a docbook version. > > Yes, I remember something like this. No, "get rid" is too strong a term. The real goal is to provide alternative back ends (e.g. direct HTML, LaTEX, DocUtils, etc., in addition to DocBook). This can be achieved through a set of back end template libraries. And, no, I don't think it is a short term goal. The short term goal is to simplify quickbook a lot more than it is now (a targeted 90% reduction in c++ code size) by moving to template libraries. We'll end up with a standard template library with 90% of the functionality of quickbook plus a set of intrinsics in c++ code. *** We're actually striving to make quickbook simpler, not more complex *** Why? some people, do not like the elaborate tool chain that Doc/BoostBook requires. Some parts of the tool chain, e.g. FOP, is severely broken, XSLT is so slow and difficult to understand and maintain, etc. DocBook is not perfect, you know. It too has its own sets of problems. >> Please correct me if docbook is still intended to be a mandatory >> intermediate stage between quickbook and html/pdf documentations. > > I can't speak for quickbook developers, but it could be useful to have a > backend in boostbook or docbook, even if it is not anymore used as an > intermediate stage. This involve some development cost, but à priori not too > much. It could be useful if someone want to use a custom xslt for his doc > (in case of use outside boost, since they try to make a common L&F for > boost) or for the sake of having a standardized xml backend. > > After it depend on the scope of use they want to give to quickbook. A boost/docbook backend will still be supported, for sure. Backward compatibility is a paramount concern. Most (all?) quickbook documents, except the most simple ones rely on DocBook. As soon as you start "escaping" to DocBook, you become dependent of it. AFAICT, there is no way to break free of that dependency without sacrificing backward compatibility. Regards, -- Joel de Guzman http://www.boost-consulting.com http://spirit.sf.net

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