Now, Use https://github.com/ClauText/NewParadoxGameEngineParser

ParadoxGameParser

EU4, DHR, VIC2, etc.. savegame or some data file Parser, written by Modern? C++

Usage

first, Property page -> C/C++ -> Additional include Directories -> Add include folder!
and check main.cpp! 

Syntax

program: | list program 

list: val | var EQ val | var EQ left inner_list right | var EQ LEFT RIGHT | LEFT RIGHT

inner_list: val inner_list | val 
| var EQ left inner_list right | var EQ left inner_list right inner_list
| var EQ LEFT RIGHT | var EQ LEFT RIGHT inner_list
| var EQ val1 | var EQ val1 inner_list
| LEFT RIGHT | LEFT RIGHT inner_list
| left inner_list right | left inner_list right inner_list

var: string ( ex test, 222, 33.44, "test test" is alllowed! )
val: string ( ex "test test", test, 222, 33.44 )
left: LEFT
right: RIGHT
EQ : =
LEFT : {
RIGHT : }

Notices!

val  :  it is itemtype, its name is empty("")!
var = val : it is itemtype, its name is var, value is val.
var = { } : it is usertype, its name is var.
{    } : it is usertype, its name is empty("")!
all var, val is string! if val is integer type, and you want to use val as int then you have to change string to int!

check - ClauText is language(?)( which is based on my ParadoxGameParser, and has more functions? ).

https://github.com/vztpv/ClauText