Re: [Boost-users] Boost.Program_options: Parsing arguments like "+a" possible?

I'm not sure, if it seems easy for you, go for it! But have a look at this: http://www.boost.org/doc/libs/1_47_0/doc/html/program_options/howto.html#id2... It might do the trick for you already, if you can change the plus into some prefix or suffix that distinguishes it fomr the minus. Best, Dee On Mon, Aug 8, 2011 at 19:36, wrote:

Hey,

do you think to create  a own parser based on boost.qi is the best solution?

Thanks

Am 08.08.2011 13:15, schrieb Diederick C. Niehorster:

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You'll have to read through the source code (which isn't straight forward). There will be a parser somewhere (maybe its easiest to find the right file by putting a breakpoint before a call to program_options and stepping through till you're in the parser. Once there, the change is probably pretty trivial. And if you can do it in a nice configurable way with a user exposed setting, the maintainers might accept a patch. Though I'm worried about how you are going to internally distinguish the + and - options...

Best, Dee

On Mon, Aug 8, 2011 at 19:10,  wrote:

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Am 08.08.2011 12:52, schrieb Leo Cacciari:

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Il 08/08/2011 12:47 PM, boost_mailinglist@gmx.de ha scritto:

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Hello,

the app is grown up step by step and a other person has taken the decission to use the "+" as a sign for an argument. (All the letters for the - are used.) My task is more or less to rewrite the old case() parser to a new one, possible based on boost.program_options, to get a clear structure. At the moment I'm not very interesting to change the argument style, because all the example and more has also to be change to the new style.

Well then I believe you're out of luck. AFAIK and as is stated in the library documentation, start character for short options is - or / (the latter to conform to windows usage).

Is there a way to get the library "patched" and replace the / through +? The app will only be used under linux.

Thanks _______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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