How to get sub string starts from specific word

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Hello all

I have a text like this for example:

there is a new care here, nothing else

how can I get a sub string from it

for example I want the string from word new to word nothing to get

new care here, nothing

thank you all : )

Posted 5-Jun-12 6:01am

Msaya

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VJ Reddy 6-Jun-12 1:59am

Thank you for accepting the solution :)

2 solutions

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Kschuler · Accepted Answer · 2012-06-05T06:07:00

Solution 1

If you know for sure the the start word you are looking for is "new" and the end word is "nothing" you can search for these words in your string and find their index. Once you have the index, you can use that to do the substring.

Here[^] is an MSDN article that can explain it with a good example.

The problem you may encounter, is if there is more than one word "new" or "nothing" in your sentence.

Hope this helps.

Posted 5-Jun-12 6:07am

Kschuler

Comments

VJ Reddy 5-Jun-12 13:01pm

Good answer. 5!

Sergey Alexandrovich Kryukov 5-Jun-12 13:26pm

Looking for "new" and "nothing"... -- nothing new :-) My 5 though. :-)
--SA

Maciej Los 5-Jun-12 14:45pm

;)

thatraja 5-Jun-12 15:26pm

5!

VJ Reddy · Accepted Answer · 2012-06-05T06:57:00

The Regex class can be used to retrieve the required sub string from the above text.

If only first occurrence of the sub string is required then the Match method of Regex can be used as follows:

C#

string text = @"there is a new care here, nothing else";
Match match = Regex.Match(text,@"new.*?nothing",
    RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
if (match.Success)
	Console.WriteLine (match.Value);
//Output
//new care here, nothing

If multiple occurrences of the sub string is required then the Matches method of Regex class can be used as follows:

C#

string text2 = @"there is a new care here, nothing second new care here second time, nothing else";
MatchCollection matches = Regex.Matches(text2,@"new.*?nothing",
    RegexOptions.CultureInvariant | RegexOptions.IgnoreCase);
foreach (Match m in matches)
{
    Console.WriteLine (m.Value);
}
//Output
//new care here, nothing
//new care here second time, nothing