Is there any rationale for not supporting Unicode in some boost libraries (e.g. filesystem, program_options)? ++Hector C. ---------------------------------- --------------------------------- Yahoo! Mail Use Photomail to share photos without annoying attachments.
On 3/16/06, Calderon Hector <hhcalderon@yahoo.com> wrote:
Is there any rationale for not supporting Unicode in some boost libraries (e.g. filesystem, program_options)?
Probably one of the main problems is that there's no de facto or de jure standard for Unicode in C++. As I understand it, however, the new filesystem library will have support for wide characters. There may also be some worry about the portability of wide-character filenames or options. Of course most (all?) libraries will handle (in terms of storing and regurgitating) UTF-8 fine, if you can arrange for the external environment to produce and accept it. ~ Scott
Calderon Hector wrote:
Is there any rationale for not supporting Unicode in some boost libraries (e.g. filesystem, program_options)?
Did you read: http://boost.org/doc/html/program_options/howto.html#id2716238 and if yes, what is missing, in your opinion? Also, are you aware that current version of the filesystem library allows wchar_t paths? - Volodya
Comments below: Vladimir Prus <ghost@cs.msu.su> wrote: Calderon Hector wrote:
Is there any rationale for not supporting Unicode in some boost libraries (e.g. filesystem, program_options)?
Did you read: http://boost.org/doc/html/program_options/howto.html#id2716238 and if yes, what is missing, in your opinion? In the very first example from http://www.boost.org/doc/html/program_options/tutorial.html#id2714212 you stumble with options_description which has no Unicode support (as far as I can tell). Also, are you aware that current version of the filesystem library allows wchar_t paths? I just read in a different thread ... it seems that some internal update has it. But I haven't got it yet. ++Hector C. ---------------------------------- --------------------------------- Yahoo! Mail Use Photomail to share photos without annoying attachments.
Calderon Hector wrote:
Comments below:
Is it possible that you quote the message you reply to in a regular way? Without quoting it's hard to find where you reply begings.
What do you mean, exactly. Again, in http://boost.org/doc/html/program_options/howto.html#id2716238 the Unicode support is discussed in some depth. What do you mean by "options_description has no Unicode support"? The fact that you can't give Unicode names to options? Yes, this is not supported for now. The fact that you can't parse wide version of argc and argv -- but you actually can! Or what do you mean? - Volodya
Sorry for the problems with the quoting ... In program_options, not only you cannot give Unicode names to options, but you cannot give Unicode descriptions. These are important to avoid narrow->wide conversion when printing the help message. Another issue with Unicode support in overall boost. I cannot find a switch that would signal Unicode support and default a symbol to the correspond instance of a template (like _T in tchar.h). For example, it would be great to have #ifdef BOOST_UNICODE #define toptions_description woptions_description #else #define toptions_description options_description #endif where woptions_description uses Unicode for everything. ++Hector C. Vladimir Prus <ghost@cs.msu.su> wrote: Calderon Hector wrote:
Comments below:
Is it possible that you quote the message you reply to in a regular way? Without quoting it's hard to find where you reply begings.
What do you mean, exactly. Again, in http://boost.org/doc/html/program_options/howto.html#id2716238 the Unicode support is discussed in some depth. What do you mean by "options_description has no Unicode support"? The fact that you can't give Unicode names to options? Yes, this is not supported for now. The fact that you can't parse wide version of argc and argv -- but you actually can! Or what do you mean? - Volodya _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users ---------------------------------- --------------------------------- Yahoo! Travel Find great deals to the top 10 hottest destinations!
participants (3)
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Calderon Hector -
me22 -
Vladimir Prus