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Need to switch 1's and l's in strings.

Posted on 2013-11-11
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Last Modified: 2013-11-11
I have a set of data (text files) with a lot of trouble shooting codes (e.g. lAG51 & lA11B).  My problem is that the data was entered incorrectly and should have been (1AG5l & 1AllB).

I cannot do a straight find and replace as there are too many varying codes and if I do replace 1's with l's and then l's with 1's:

 lAG51  becomes 1AG51 and lA11B becomes 1A11B.

I need a way to switch 1 for l and l for 1.  I was going to use VB.net with regular expressions to find the codes make the corrections.

Any and all help is appreciated.
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Question by:NevSoFly
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2 Comments
 
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Accepted Solution

by:
Ivo Stoykov earned 500 total points
ID: 39638077
one approach is to use additional chars to divide desired replace -
One for 'l' and another for '1':

string pattern = @"^l";
RegexOptions regexOptions = RegexOptions.IgnoreCase | RegexOptions.Compiled;
Regex regex = new Regex(pattern, regexOptions);
string inputData = @"lAG51  becomes 1AG51 ";
string replacement = @"l@";
string result = regex.Replace(inputData, replacement);

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string pattern = @"\b1";
RegexOptions regexOptions = RegexOptions.IgnoreCase | RegexOptions.Compiled;
Regex regex = new Regex(pattern, regexOptions);
string inputData = @"lAG51  becomes 1AG51 ";
string replacement = @"1#";
string result = regex.Replace(inputData, replacement);

Open in new window


then just replace 'l@' with '1' and '1#' with 'l'

HTH
Ivo Stoykov
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Author Closing Comment

by:NevSoFly
ID: 39638099
thanks
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