how to extract string between two symbols

Question

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I have a string in which i want to fetch number before TTL using regex how can i do that
this is my string

C#

WPNCB«                                                         
19AUG DEPARTURE DATE-----LAST DAY TO PURCHASE 21MAY/2359       
       BASE FARE      EQUIV AMT      TAXES             TOTAL   
 1-       DKK790      USD139.00     179.40XT       USD318.40ADT
    XT    109.80YQ      19.20YR      29.00ZO       5.40UA      
            2.00UD      14.00YK                                
             790         139.00     179.40            318.40TTL // here is TTL
ADT-01  EPX NPX                                                
 CPH SU X/MOW SU HRK78.68EPX SU X/MOW SU CPH59.45NPX NUC138.13 
 END ROE5.71905                                                
VALID ON SU/FARE RESTR APL                                     
VALIDATING CARRIER - SU

<pre lang="c#">
    i used \d{1,4}\.\d{2}TTL regex but it fetch TTL to i dont want to show TTL line.

Thanks in advance

Posted 14-May-13 3:57am

amitesh1989

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Comments

Sergey Alexandrovich Kryukov 14-May-13 10:02am

With Regex, it should be to fixed characters or patterns delimiting the substring you need. In your case, to simplify the answer, what are they? It should be ended with "TTL" (not including), but what's the starting pattern?
—SA

4 solutions

Solution 1

The problems is solved using grouping. It could look like this: "start_pattern(.)end_pattern" ("end_pattern" is "TTL" in your case). The brackets denote a group. Now, in code, you find the Regex group corresponding the dot in the middle.

Please see: http://msdn.microsoft.com/en-us/library/system.text.regularexpressions.match.groups.aspx[^].

Got the idea?

—SA

Posted 14-May-13 4:07am

Sergey Alexandrovich Kryukov

Updated 14-May-13 4:10am

v2

Solution 2

try this

C#

string xmlval = "<@>asdfsadfsadf</@>";
                string descriptval = xmlval.Substring(xmlval.LastIndexOf("<@>"));
                string findfrom = "<@>";
                string findto = "</@>";
                int start = descriptval.IndexOf(findfrom);
                int to = descriptval.IndexOf(findto, start + findfrom.Length);
                if (start < 0 || to < 0)
                    return;
                else
                    msg = descriptval.Substring(start + findfrom.Length, to - start - findfrom.Length);

                Console.WriteLine(msg);
                Console.ReadLine();

Posted 14-May-13 4:14am

Bojjaiah

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amitesh1989 · Accepted Answer · 2013-05-14T04:23:00

Solution 3

i just made some changes in my regex and it works

C#

(?:\b)([0-9]{0,}[.][0-9]{2})(?=TTL)

Posted 14-May-13 4:23am

amitesh1989

Updated 14-May-13 4:24am

v2

Comments

Maciej Los 14-May-13 17:07pm

Nice, you did it yourself!

amitesh1989 · Accepted Answer · 2013-05-14T04:25:00

Solution 4

just made some changes in mt regex and it works

C#

(?:\b)([0-9]{0,}[.][0-9]{2})(?=TTL)

Posted 14-May-13 4:25am

amitesh1989