Trying to extract code in the middle of a String

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I am trying to extract a code from a string. The string can vary in content and size but I am using Tag words to make the extraction easier. However, I am struggling to nail a particular scenario. Here is the string:

({GoldPrice} * 0.376) + {MP.011} + {SilverPrice}

What I need to extract is the 011 part of {MP.011}. The keyword will always be "{MP." It's just the code that will change. Also the rest of the expression can change so for example {MP.011} could be at the beginning, end or middle of the string.

I've got close using the following:

        int pFrom = code.IndexOf("{MP.") + "{MP.".Length;
        int pTo = code.LastIndexOf("}");
        String result = code.Substring(pFrom, pTo - pFrom);

However, the result is 011} + {SilverPrice as it is looking for the last occurrence of }, not the next occurrence. This is where I am struggling.

Any help would be much appreciated.


the safest option is to use Regex with Negative and Positive Lookahead. This also matches multiple if you need it anyway.

  var str3 = @"({GoldPrice} * 0.376) + {MP.011} + {SilverPrice}";
  var result = Regex.Matches(str3, @"(?<=\{MP\.).+?(?=\})");

  foreach (Match i in result)
  {
      Console.WriteLine(i.Value);
  }

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You could use a regular expression to parse that:

var str = "({GoldPrice} * 0.376) + {MP.011} + {SilverPrice}";
var number = Regex.Match(str, @"{MP\.(\d+)}")
    .Groups[1].Value;
Console.WriteLine(number);

Extract the middle of a string (Java), This feature is not available right now. Please try again later. Published on Jun 28, 2015. A Duration: 4:46 Posted: 28 Jun 2015 Select the column you want to extract the text string from (click on the "Recordno" heading and it should highlight the whole column). Then, in the "From Text" portion of the "Add Column" ribbon, click on "Extract", then "Text Between Delimiters" (see image below).


        int pFrom = code.IndexOf("{MP.") + "{MP.".Length;
        int pTo = code.IndexOf("}", pFrom); //find index of } after start
        String result = code.Substring(pFrom, pTo - pFrom);

Can I extract specific text from the middle of a string?, I want to extract the serial numbers and place them into their own field. realize it's not the most elegant solution when compared to script/code, but this is pretty I work with imported sheets, so I'm attempting to pull the middle strings out from​  A string index starts counting from 0 including every space and special character. The middle character or word would depend on the string. Find out middle index by dividing the length by 2 and extract it from that index Code to extract letter at the middle position:


The key is to use the .IndexOf(string text,int start) overload.

static void Main(string[] args)
{
    string code = "({GoldPrice} * 0.376) + {MP.011} + {SilverPrice}";

    // Step 1. Extract "MP.011"
    int pFrom = code.IndexOf("{MP.");
    int pTo = code.IndexOf("}", pFrom+1);
    string part = code.Substring(pFrom+1, pTo-pFrom-1);
    // Step 2. Extact "011"
    String result = part.Substring(3);
}

or you can combine the last statements into

    String result = code.Substring(pFrom+1, pTo-pFrom-1).Substring(3);

Solved: Extract text from the middle of a string, Solved: I am trying to extract the numbers in the middle of a string and add them to a new column in my table. The number i am trying to extract  VBA Mid function allows you to extract the middle part of the string from a full-text string. VBA string functions do not change the original string. Usually, they will return a new string based on the function you input in the code. VBA Mid function returns a substring from within a supplied text or a string.


How can I extract a portion of a string variable using regular , Example 1: A researcher has addresses as a string variable and wants to create a new variable Example 1: Extracting zip codes from addresses Square brackets indicate that one of the characters inside the brackets should be matched. Extract n characters form middle If you want to extract 3 characters begin from the 4th character of a string, you can use below formula: =MID (B15,4,3) B15 is the cell you extract characters from, 4 represent extract characters from 4th character (count from left), 3 is the number of characters you want to extract.


Excel substring functions to extract text from cell, MID function - to extract a substring from the middle of a text string, starting at If you are curious to try this as well as many other useful features included code that we provide exclusively to our blog readers: AB14-BlogSpo. In the above example, we have the city name and Zip code together. In this case, we know we have to extract Zip code from the right-hand side of the string. But one of the problems is we don’t know exactly how many digits we need from the right-hand side of the string.


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