CODEWITHSUNDEEP
c#.netregexmatch
Marc Still
Marc Still

Reputation: 95

REGEX C# (Matching beginning and ending word)

I am using Regex to retrieve a paragraph. My paragraph in my string variable contains the beginning letter, G. and it ends with a variable, @Variable.

What pattern would I use to use to grab that paragraph? I was using the code below but I think I am really off. 

    Regex.Match(paragraph, @"\G. .*\@Variable$");

Upvotes: 2

Views: 2492

Answers (3)

CodingGorilla
CodingGorilla

Reputation: 19842

I think this is what you want (if I'm understanding your requirements):

string regex = @"G.+" + variable;
Regex.Match(paragraph, regex);

A couple of things to note, you have to be careful what is in the variable if it contains things like \ that is going to mess up your regex. There are "reserved" characters in regex that you have to beware of so as not to cause problems.

Also, instead of .* I used .+ which means "Between one and unlimited times" rather than "Between zero and unlimited times" so it requires that there is at least one other character in your "paragraph". You may wish to add something like .{10,} which would establish a minimum of 10 characters, depending on your needs.

Upvotes: 1

m.edmondson
m.edmondson

Reputation: 30882

It would be something like this:

string regex = @"G.+" + variable.ToString()
Regex.Match(paragraph, regex);

While you're at it grab a copy of Expresso - makes tasks like this much easier.

Upvotes: 2

bluevector
bluevector

Reputation: 3493

I think you might be looking for something like this:

Regex.Match(paragraph, string.Format(@"^G.*?{0}$", yourVariableHere));

Upvotes: 1

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