CODEWITHSUNDEEP
c#regexstring
user1194842
user1194842

Reputation: 71

how can I extract number between two strings one is fixed and other is any thing

how can I extract number between two strings one is fixed and other is any thing EX. HimyDear139friend mydear111sayhi1234 imissdear121212 dear123likeorange

i nead to extract the number which is always after dear

Upvotes: 0

Views: 315

Answers (5)

Guffa
Guffa

Reputation: 700192

As you will get about 92873928734 regular expression solutions that all look the same, here is a solution that doesn't use a regular expression:

// get start position
int index = str.IndexOf("dear") + 4;
// get digits
string digits = new String(str.Skip(index).TakeWhile(Char.IsDigit).ToArray());

Upvotes: 0

Kharaone
Kharaone

Reputation: 597

Answer from Aliostad is the correct one, just add the RegexOptions.IgnoreCase option to it if you want to catch the Dear and dear indifferently 

string expression = @"dear(\d+)";
string myString = "HimyDear139friend mydear111sayhi1234 imissdear121212 dear123likeorange";

MatchCollection matches =  Regex.Matches(myString, expression);
foreach(Match m in matches)
    Console.WriteLine(m.Groups[1].Value);

Console.WriteLine("Ignoring Case Option Enabled");
matches = Regex.Matches(myString, expression, RegexOptions.IgnoreCase);
foreach (Match m in matches)
    Console.WriteLine(m.Groups[1].Value);

Hope that helped ;)

Upvotes: 1

scibuff
scibuff

Reputation: 13755

you can use something like

/dear(\d*)/

Upvotes: 0

Aliostad
Aliostad

Reputation: 81660

Use this expression:

string expression = "dear(\d+)";
string myString = "HimyDear139friend mydear111sayhi1234 imissdear121212 dear123likeorange"
MatchCollection matches =  Regex.Matches(myString, expression);
foreach(Match m in macthes)
   Console.WriteLine(m.Groups[1].Value)

Upvotes: 6

hsz
hsz

Reputation: 152206

Try with following regex:

/dear(\d+)/i

Upvotes: 0

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