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Loop thorugh string in .net

Posted on 2012-04-06
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Last Modified: 2012-04-06
I have
string like this

string mystring = This is the %EventName% and place is %ShelterName%

 I want to seperate the %EventName% ,%shelterName% as seperate string.

I am not sure how I can loop thorugh string and get the position of %.Please Help me out with this.
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Question by:itinfo7
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5 Comments
 
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Expert Comment

by:jackDOTisenberg
ID: 37817833
Can you please provide a sample of the string that you need to parse? Depending on the structure of the string, you will be able to parse the string and pull out the different variables that you want.

If you post a sample, I may be able to write the parse statement for you.
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Author Comment

by:itinfo7
ID: 37817853
string parsestring  = VCA is the %Animal% Hospital and It's located %texas%
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Author Comment

by:itinfo7
ID: 37817855
Actually string is changeable but it would follow same format I am giving you.
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Expert Comment

by:jackDOTisenberg
ID: 37817869
This requires a little more code than I can do over my phone, but the following example should give you everything you need to get the variables you want.

Extract a value between two spaces in a string
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Accepted Solution

by:
käµfm³d   👽 earned 500 total points
ID: 37818034
You may consider using regular expressions for this. Be careful though:  regex is not a parser, so if you leave out an expected percent symbol, or if you other text actually contains a percent symbol, then you will end up with unexpected results. In that case, I might suggest creating some kind of "escape" character to denote a literal percent symbol vs. a percent that is part of a placeholder. Perhaps by doubling-up the percent (%%).

Here is an example of using regex. I have included checking for the doubled-up percent I mentioned.

using System;
using System.Text.RegularExpressions;

namespace _27665770
{
    class Program
    {
        static void Main(string[] args)
        {
            string mystring = "This is the %EventName% and place is %ShelterName%";

            foreach (Match m in Regex.Matches(mystring, "(?<!%)%[^%]+%"))
            {
                Console.WriteLine(m.Value);
            }

            Console.ReadKey();
        }
    }
}

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If you don't think you'll encounter any percents which aren't part of a placeholder, then you can remove the "(?<!%)" part, but it shouldn't hurt anything to leave it in.
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