Re: [Boost-users] Newbie question: block read inputs to regex

From: Beman Dawes (bdawes_at_[hidden])
Date: 2003-12-12 14:15:35

At 03:52 PM 12/9/2003, annirak_at_[hidden] wrote:

 >I'm using regex_grep() to search through file contents for matches.  I 
want
 >to read the file in blocks to keep memory use down for large files.  What 
I
 >want to know is whether there is some way of adding the next block of
 >memory to the grep where the last one left off.

I'm not a regex expert, but I think the purpose of the 
match_flag_type::match_partial flag is to handle exactly the situation you 
describe.

See http://www.boost.org/libs/regex/template_class_ref.htm#partial_matches

(Note that partial matches will get their own docs page in the upcoming 
1.31.0 release, so the above URL will change.)

--Beman