Need help with bracket counter for project

[Code_Guru_Cricket]

Hey guys!

So so far what my program does is goes through a file that you specify and takes the lines of text between 2 keywords and saves them to a seperate file for each block of text.

i.e

Start
stuff
stuffer
End

Start1
stuff
stuffer
End

The "stuff" in between will be saved to a diff text file for each block
But what i am trying to do now is instead of using keywords to mark the beginning and end i want to use brackets to mark it.

Start
[
[
stuffer
]
]
End

So the program instead of using Start and End to mark the beginning and end could use the bracket count....wouldnt it be something like:

if(line.equals("["))
counter = counter + 1
if(line.equals("]"))
counter = counter - 1

so that when counter reaches 0 it will know that it has reached the end of a block of code...

this is what I have so far and the file that I have been using for testing

private void button1_Click(object sender, EventArgs e)
{
string path = "c:\\";
int counter = 0;
var masterList = new List<List<string>>();
using (var sr = new StreamReader(path + "test.txt"))
{
while (!sr.EndOfStream)
{
string line = sr.ReadLine();


if (line.StartsWith("CLASS") || line.StartsWith("TYPE"))
{
if (line.Equals("{"))
{
counter = counter + 1;
}

if (line.Equals("}"))
{
counter = counter - 1;
}

var lineList = new List<string>();
while (!line.Equals("END"))
{
lineList.Add(line);
line = sr.ReadLine();
}
masterList.Add(lineList);
}
}
}

foreach (var lineList in masterList)
{
using (var sw = new StreamWriter(path + lineList[0] + "_test.txt"))
{
foreach (string line in lineList)
sw.WriteLine(line);

textBox1.Text = Convert.ToString(masterList.Count);

}


}


}
}
}