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use crate::parser;
use crate::parser::{Command, Parse};
use crate::var::Var;
use crate::custom::Custom;
//what the public sees
pub fn inter(size: [usize; 2], code: Parse) -> Var {
let mut vars = Var::new();
let cus = Custom::new();
inter_back(size, code, &mut vars, cus)
}
// the disgusting backend
pub fn inter_back(size: [usize; 2], code: Parse, vars: &mut Var,custom:Custom ) -> Var {
let mut _modif = 0;
//let mut vars = vars;
let size_1 = size[0];
let size_2 = size[1];
for pos_ in size_1..size_2 {
//print!("pos_{}",pos_);
let pos_ = pos_ + _modif;
if pos_ >= size_2 {
break;
}
let cur = code.parsed_data[pos_].clone();
match cur {
Command::Prints(a) => match a {
parser::Var::Var(a) => {
println!("{}", vars.get_var(a));
}
parser::Var::Sstring(a) => {
println!("{}", a);
}
},
Command::Var(a) => {
//println!("new var{},{}", a[0], a[1]);
vars.new_var(&a[0], &a[1]);
}
// executes the if
Command::If(x1, e, x2) => {
let mut skip = true;
match e.as_str() {
"==" => {
//println!("{},{},",get_data(x1,vars),get_data(x2,vars));
if get_data(x1, vars) == get_data(x2, vars) {
skip = false;
} else {
}
}
"!=" => {
//println!("{},{},",get_data(x1,vars),get_data(x2,vars));
if get_data(x1, vars) != get_data(x2, vars) {
skip = false;
} else {
}
}
a => {
panic!("{} can not be used in a if statement ", a)
}
}
// println!("pos{},f {}",pos_,skip);
if skip {
// skip until the stop command if the if is wrong
let cur = code.parsed_data.clone();
// get the stop
//let tt = Command::Misc(parser::Misc::IfStop);
// find the pos
//let x = cur[pos_..size_2].iter().position(|x| *x == tt);
let mut inc = 1; // this must be zero for it to have found the correct stop
let mut correct_stop = 0;// the correct if stop
let mut post = pos_; // current position of the pointer
for x in cur[pos_+1..size_2].iter(){//lets now find that stop if
match x {
Command::If (_,_,_)=>{// adds to the inc if there are more ifs in there
inc += 1;
}
Command::Misc(parser::Misc::IfStop) =>{// if there is a if stop it removes a inc
inc -= 1;
if inc <= 0{
correct_stop = post;
//println!("{},{}",correct_stop,inc);
break;
}
}
_=>{}
}
post += 1;
}
let mut _pos = 0;
// now its just to jump
/*match {
Some(x) => {
_pos = x + pos_;
//println!("test {}", pos);
}
None => {
panic!("cannot find the stop for the if")
}
}*/
_pos = correct_stop ;
_modif = _pos - pos_;
// println!("{},{}",_modif,(_modif + pos_));
//println!("xxxx{},{},{:#?}", pos, pos_, cur[pos]);
// dubble check that its correct
if _pos >= size_2{
break;
}
}
}
//changes variables
Command::Change(a, b ,c) => {
use parser::Math;
if c != Math::Pass{
//println!("{:#?} {:#?}",data,c);
// this is for plus minus and stuff like that
match c{
Math::Minus(ch) =>{
let f = vars.get_var(a.clone()).parse::<i64>().unwrap() - ch;
vars._up_var(a.as_str(), f.to_string().as_str());
}
Math::Plus(ch) =>{
let f = vars.get_var(a.clone()).parse::<i64>().unwrap() + ch;
vars._up_var(a.as_str(), f.to_string().as_str());
}
Math::Times(ch) =>{
let f = vars.get_var(a.clone()).parse::<i64>().unwrap() * ch;
vars._up_var(a.as_str(), f.to_string().as_str());
}
Math::Div(ch) =>{
let f = vars.get_var(a.clone()).parse::<i64>().unwrap() / ch;
vars._up_var(a.as_str(), f.to_string().as_str());
}
_=>{
panic!("why do i need this? oh right i dont")
}
}
}else{
let data = get_data(b.clone(), vars);
//println!("chan {}", data);
vars._up_var(a.as_str(), data.as_str());
}
}
Command::Delete(a) => {
vars.del_var(a.as_str());
}
Command::Misc(parser::Misc::IfStop) => {}
Command::Cus(a,b) => {
let mut args: Vec<String> = Vec::new();
if custom.is_no_in(a.clone()){
}else{
for x in b{
args.push(get_data(x,vars));
}
}
match custom.run_fn(a, args,vars){
Some (a) =>{
vars.new_var( format!("R{}",a).as_str(),a.as_str());
}
None =>{
}
}
}
_ => {
panic!("function not found");
}
}
}
return vars.clone();
}
// get the data from parser::Var
fn get_data(v: parser::Var, vars: &mut Var) -> String {
match v {
parser::Var::Var(a) => return vars.get_var(a),
parser::Var::Sstring(a) => return a,
}
}
fn _get_str(v: parser::Var) -> String {
match v {
parser::Var::Var(a) => return a,
parser::Var::Sstring(a) => return a,
}
}