Expiring Today—Celebrate National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

transform the CR/LF characters to \r\n

Posted on 2004-09-14
14
Medium Priority
?
1,346 Views
Last Modified: 2008-02-01
I have text data from FoxPro (memo).  There are a few paragraphs in a single transaction that I pull back into a WIN FORM dataset to present in a textbox.  No edit here, just read only.

What is the best way to repalce the CR/LF with the escape sequences that my WinForms will use?

Im pretty green at reqular expressions if that is the best way to handle this.

TIA



0
Comment
Question by:srussell705
[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
  • 8
  • 4
  • 2
14 Comments
 
LVL 14

Expert Comment

by:AvonWyss
ID: 12054647
CR==\r
LF==\n
Therefore, if the sequence is CRLF, you should not need any conversion.
0
 
LVL 1

Author Comment

by:srussell705
ID: 12055517
Thanks but trust me.  This is not the answer.

When I fill my textbox, I see two boxes butted next to one another for CR & LF in my display.  If I were to copy the text here it would break according to CR&LF.  

0
 
LVL 14

Expert Comment

by:AvonWyss
ID: 12055532
Could it be that the data is LFCR instead of CRLF? Because if it IS CRLF, you'll not see boxes...
0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 14

Expert Comment

by:AvonWyss
ID: 12055552
You can try this:

string output=Regex.Replace(input, @"\r\n|\n\r|\r|\n", "\r\n", RegexOptions.SingleLine);
0
 
LVL 11

Expert Comment

by:Agarici
ID: 12056223
i suggest replacing "\r\n" with Environment.NewLine

i guess your problem is because the textbox does not convert tex text corectly to unicode


hth.
A.
0
 
LVL 11

Expert Comment

by:Agarici
ID: 12056257
btw you wont need regular expressions to do that
all you need is : YourTextBox.Text = YourTextBox.Text.Replace( "\r\n", Environment.NewLine );

hth.
A.
0
 
LVL 14

Expert Comment

by:AvonWyss
ID: 12056726
Agarici, on Windows, Environment.Newline is always \r\n, so that you suggestion will just reproduce the string which was already present without changing anything.
0
 
LVL 1

Author Comment

by:srussell705
ID: 12057277

Thanks.  I was trying to figure out how to do the same but replace the \r\n with CHR(13) + CHR(10)

I'm playing with :
Char[] chars;
Byte[] bytes = new Byte[] {13,  10 };

ASCIIEncoding ascii = new ASCIIEncoding();


chars = ascii.GetChars(bytes,0,1) ;

But I'm not there yet.

any ideas?
0
 
LVL 14

Expert Comment

by:AvonWyss
ID: 12057359
\r\n IS CHR(13) + CHR(10) - there is nothing to replace!
0
 
LVL 1

Author Comment

by:srussell705
ID: 12057408
Not getting funny now :(

my code:
                  Char[] chars;
                  Byte[] bytes = new Byte[] {13,  10 };

                  ASCIIEncoding ascii = new ASCIIEncoding();


                  chars = ascii.GetChars(bytes,0,2) ;//  " characters used to decode bytes." ;

                  int ln1 = 0;
                  string lcd ="";
                  foreach (Char c in chars)
                  {
                        lcd += chars[ln1] ;//Console.Write("[{0}]", c);
                        ln1 ++;
                  }
                  
                  mmTextBox2.Text = mmTextBox2.Text.Replace( lcd, Environment.NewLine );

lcd translates to "\r\n", and does no real work in the replacement as iI step through the code :(


0
 
LVL 14

Expert Comment

by:AvonWyss
ID: 12057466
That's what I said, right?
0
 
LVL 14

Accepted Solution

by:
AvonWyss earned 800 total points
ID: 12057601
Did you even bother to see what line endings you get? And to try if the given regex works?
0
 
LVL 1

Author Comment

by:srussell705
ID: 12058485
I went back to the regEx example and bingo.  I wanted to work harder and not smarter I guess.

Thanks to all!!!
0
 
LVL 14

Expert Comment

by:AvonWyss
ID: 12058541
Good to hear it worked for you. So there were other line breaks than \r\n in the string... ;-)
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say 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

Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
In this video, Percona Solution Engineer Rick Golba discuss how (and why) you implement high availability in a database environment. To discuss how Percona Consulting can help with your design and architecture needs for your database and infrastr…
How to fix incompatible JVM issue while installing Eclipse While installing Eclipse in windows, got one error like above and unable to proceed with the installation. This video describes how to successfully install Eclipse. How to solve incompa…

719 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