[LC++]scanning files

[Jan Pfeifer]

hi Julien,

if you have access to the boost library
(www.boost.org, it's quite a "standard library") and
are used to regex patterns -- if not, consider
learning it, it's very useful! --, you could do:

using namespace boost;

static RegEx
directory_pattern("^\\s*directory\\s*=\\s*([^
\t].*)$");
if ( ! directory_pattern.Match( my_string ) )
  throw ...
string directory = directory_pattern[1];

i haven't checked the regex, you can adapt it as you
see fit -- as i declared it, the directory should
start with something different than space.

i hope it helps :)

jan


ps.: from the boost library page: " ... Ten Boost
libraries will be included in the  C++ Standards
Committee's upcoming  C++ Standard Library Technical
Report as a step toward becoming part of a future C++
Standard. ..."




 --- Julien Claassen <julien at c-lab.de> escreveu: 
> Hi all!
>   I have a simple probelm, but seem to be completely
> stupid. I have a file, 
> with a simple format, imagine that:
>   Filename is myfile.cfg
>    Entry in this file is:
>   directory = /usr/share/something
>   Now I want to read this in a variable. With c I
> would have done:
>   ...
>   fscanf(file_pointer,"directory = %s",&my_string);
>   ...
>   How would I do this with c++ in an ellegant
> manner? I thought of 
> stringstreams, but well... I'm completely lost...
>   Any help is appreciated and greatfully taken!
>    Kindest regards
>       Julien
> 
> --------
> Music was my first love and it will be my last (John
> Miles)
> 
> ======== FIND MY WEB-PROJECT AT: ========
> http://ltsb.sourceforge.net - the Linux TextBased
> Studio guide
> 
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