[C#] Match all cases of a string

Hi All,

I have a Array of bytes which I am trying to find all the matches of a specific string and store the location (index) of where its found in a list.

So far I have:

using (BinaryReader br= new BinaryReader(File.Open(this.path, FileMode.Open), Encoding.ASCII))

{

byte[] Name1 = br.ReadBytes(5000000);

int nCount = Name1.Count();

string humanSName = "Foo";

List matches = new List();

for (i = 0; i < nCount; i++)

{

Match mdiv = Regex.Match(Encoding.ASCII.GetString(Name1), humanSName);

if (mdiv.Success)

{

int xx = mdiv.Index;

matches.Add(xx);

}

}

This doesn't seem to work as it only ever matches the first one it finds...like its almost started off back at the start of the byte array.

Any help would be appriciated.

1 Reply

Know the answer? Post it — somebody with the same question will find it here.

Vulpes12y ago
Try this:

List matches = null;

using (BinaryReader br= new BinaryReader(File.Open(this.path, FileMode.Open), Encoding.ASCII))
{
byte[] Name1 = br.ReadBytes(5000000);
string humanSName = "Foo";

MatchCollection mc = Regex.Matches(Encoding.ASCII.GetString(Name1), humanSName);
matches = (from Match m in mc select m.Index).ToList();
}

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