Hi, Maybe this is off-topic, but perhaps you can help. I'm looking for ideas 
on how to parse a data file.

I dont know XML but I know it parses data in text format.

I have a structured data file of the general form shown below. I dont have 
any definition of the data. Basically it looks like it is hierarchical, 
token/data pairs defined by brackets and square brackets.

I would like to parse this out into some sort of data object(s) in C++  so 
that I can gain programmatic access to the variables.

My app is C++ so the solution must be the same. Also it must be very 
lightweight and *very* fast as I must decode multiple pages in realtime.

Would adapting an XML parser to do this be a possible solution?

Any pointers/ideas/references/code snippets/observations appreciated.

TIA

Basic example showing data structure (whitespaces and carriage returns added 
by me for clarity).

{

"teacher":{
  "name":
    "Mr Borat",
  "age":
    "35",
  "Nationality":
    "Kazakhstan"},


"Class":{
  "Semester":
    "Summer",
  "Room":
    null,
  "Subject":
    "Politics",
  "Notes":
    "We're happy, you happy?"},

"Students":
[
{
  "Smith":
    [{"First Name":"Mary","sex":"Female"}],
  "Brown":
    [{"First Name":"John","sex":"Male"}],
  "Jackson":
    [{"First Name":"Jackie","sex":"Female"}]
}
],


"Grades":
[
{
  "Test":
     [{"grade":"A","points":68},{"grade":"B","points":25},{"grade":"C","points":15}],
  "Test":
    [{"grade":"C","points":2},{"grade":"B","points":29},{"grade":"A","points":55}],
  "Test":
    [{"grade":"C","points":2},{"grade":"A","points":72},{"grade":"A","points":65}]
}
]

}