Re: [Boost-bugs] [Boost C++ Libraries] #7237: Make sub_match a proper range

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #7237: Make sub_match a proper range
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2012-08-29 02:23:59

#7237: Make sub_match a proper range
-------------------------------------+--------------------------------------
  Reporter:  zeratul976@…            |       Owner:  eric_niebler
      Type:  Feature Requests        |      Status:  assigned    
 Milestone:  To Be Determined        |   Component:  xpressive   
   Version:  Boost 1.51.0            |    Severity:  Problem     
Resolution:                          |    Keywords:              
-------------------------------------+--------------------------------------
Changes (by eric_niebler):

  * status:  new => assigned

Comment:

 xpressive's `sub_match` is closely modeled on `std::sub_match`, which
 doesn't have the members you refer to. But xpressive doesn't slavishly
 follow the standard, and what you suggest is reasonable. I would prefer to
 non-intrusively make `sub_match` a valid range by hooking Boost.Range's
 customization points.

 But would `sub_match`'s `const_iterator` be a typedef for `iterator`, or
 would it const-ify the iterator (if necessary)? And do I need
 `rbegin`/`rend`, `cbegin`/`cend`, `crbegin`/`crend` and the associated
 typedefs, too? Sheesh! Opinions?

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/7237#comment:1>
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