====== String manipulation ======
For more details see the [[http://root.cern.ch/root/htmldoc/TString.html | TString Reference]].

==== Substring ====
Get substring of existing string
<code C++>
TString new = old(start, subStrLength);
// start is the index of the first character
// subStrLength is the number of characters to copy

// e.g: remove S charachters form start and E from end
TString new = old(S, old.Length()-S-E);
</code>

==== Text with variables ====
Combine some variables with a static Text
<code C++>
TString string = Form("My Number is %d", number);
</code>

If your variable is a TString, you need to pass the underlying char array
<code C++>
TString string = Form("My TString is %s", tstring.Data() );
</code>

The function follows [[http://www.cplusplus.com/reference/clibrary/cstdio/printf/| printf]]-syntax