May I ask you about my homework ? about XML's Ability

[Johnny]

1 Can XML make a Subprogram call or Coroutine ? Why ?
2 Can XML evaluate expression ? If able , how it work ?
3 Can XML manage an error / exception ? How it work ?
4 Can XML do a "GOTO" like usual program nowaday ? If able , how can we do it ?
5 What's a scope of variable in XML ?
6 Is Alaises allow in XML ?
7 Can we manage memory in XML ?
8 Is XML Support "Concurrent Execution" ? . If able , how we can do ?

Thanks a lot for help me

[Robert Wellock]

That depends upon what you want to do the eXtensible Markup Language (XML) since 'XML doesn't actually do anything itself' in a programming sense since it just defines data, i.e. descriptive markup

Should you combine it with things like eXtensible Stylesheet Language XSL Transformations (XSLT) and use an XSLT Processor then you can refer to specific parts of a document and how transformations are matched, or outputted, etc. which makes it seem to act more like a programming language.