Solved

Extracting numbers from a string

Posted on 2002-07-17
5
178 Views
Last Modified: 2010-04-01
I'm trying to extract some numbers from a char buffer formatted something like:

"\r\nSome Text A.B.C\r\nSome other Text D.E.F\r\n"

where a.b.c is the first number and d.e.f is the next number.  I need to get them to be formatted simply "abc" and "def".
0
Comment
Question by:hrasheed
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
5 Comments
 
LVL 30

Expert Comment

by:Axter
ID: 7160732
Are the numbers always going to be before the return-nextline charactor pair?

If so, you can do a charactor search for for the '\r' charactor, and the do a reverse search for the '.' period in order to get the number position.

For more information, please post your existing code.
0
 

Author Comment

by:hrasheed
ID: 7160773
yes, this will always be the format of the returned information.  the existing code isn't really related to formatting this data...i havent begun coding a way to parse these numbers because i wasnt exactly sure what method to use.  the information is written to a char somebuffer[BufferSize].  i'm trying cast the numbers in ulong type for comparison to data read from a parameter file.
0
 
LVL 30

Accepted Solution

by:
Axter earned 35 total points
ID: 7160784
You can use strchr() function to find the '\r' charactor, and then use strrchr() function to reverse find the period charactor.
0
 
LVL 30

Expert Comment

by:Axter
ID: 7160794
You've only awarded 35 points for this question.

http://www.experts-exchange.com/cplusprog/Q_20321305.html
I suggest you delete your above duplicate question so that you can at least assign adaquate points for this question.

You can post a requestion in the Community support topic area to have your duplicate question deleted.
0
 
LVL 1

Expert Comment

by:klf
ID: 7161818
hrasheed

Once you extracted the numbers from the string.  use the atol function to convert them to integers.
0

Featured Post

Free Tool: IP Lookup

Get more info about an IP address or domain name, such as organization, abuse contacts and geolocation.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: SunnyDark
This article's goal is to present you with an easy to use XML wrapper for C++ and also present some interesting techniques that you might use with MS C++. The reason I built this class is to ease the pain of using XML files with C++, since there is…
In days of old, returning something by value from a function in C++ was necessarily avoided because it would, invariably, involve one or even two copies of the object being created and potentially costly calls to a copy-constructor and destructor. A…
The viewer will learn how to clear a vector as well as how to detect empty vectors in C++.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

724 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question