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#![allow(unused)]
use log::{debug, error, info, trace, warn};
use std::fs;
use regex::Regex;
#[derive(Debug)]
enum OkmlType {
String(String),
Boolean(bool),
Integer(i64),
Float(f64),
SubList(Vec<Okml>),
Null,
}
#[derive(Debug)]
struct Okml {
key: String,
value: OkmlType,
}
fn parse_list(tokens: Vec<&str>, mut index: usize) -> (Vec<Okml>, usize) {
let mut parent: Vec<Okml> = Default::default();
index = index +2;
let mut current = tokens.get(index).unwrap();
if current == &"}" {
return (parent, index)
}
let mut value = tokens.get(index+1).unwrap();
while current != &"}" {
current = tokens.get(index).unwrap();
value = tokens.get(index+1).unwrap();
if current == &"}" || value == &"}" {
break;
}
if value == &"{" {
let mut new_index: usize = 0;
let mut child: Vec<Okml> = Default::default();
(child, new_index) = parse_list(tokens.clone(), index);
parent.push(Okml {
key: current.to_string(),
value: OkmlType::SubList(child)
});
index = new_index-1;
} else {
// println!("{} => {} ", current, value);
if value == &"```" {
let mut _current: &str;
let mut result: String = Default::default();
while index < tokens.len(){
index = index+1;
_current = tokens.get(index+1).unwrap();
if _current == "```" {
break;
}
result.push_str(_current);
result.push_str(" ");
}
parent.push(Okml{
key: current.to_string(),
value: OkmlType::String(result.clone())
});
// info!("{} => {}", current, result);
} else {
let mut return_value: OkmlType;
match value {
&"true" | &"yes" => return_value = OkmlType::Boolean(true),
&"false" | &"no" => return_value = OkmlType::Boolean(false),
&"null" => return_value = OkmlType::Null,
&&_ => {
if let Ok(parsed) = value.parse::<i64>() {
return_value = OkmlType::Integer(parsed);
} else if let Ok(parsed) = value.parse::<f64>() {
return_value = OkmlType::Float(parsed);
} else {
return_value = OkmlType::String(value.to_string());
}
}
}
// match value
parent.push(Okml{
key: current.to_string(),
value: (return_value)
});
}
}
index = index+2;
}
(parent, index)
}
fn parse(tokens: Vec<&str>, index: usize) -> (Vec<Okml>, usize) {
let token_len = tokens.len();
let mut parent: Vec<Okml> = Default::default();
let count_braces: u64 = 0;
let mut index = 0;
while index < token_len-1 {
let current = tokens.get(index).unwrap();
let mut value = tokens.get(index+1).unwrap();
// parse (sub_list_key { )
if value == &"{" {
let mut child: Vec<Okml> = Default::default();
let mut new_index = 0;
(child, new_index) = parse_list(tokens.clone(), index);
let mut child_to_push: Okml = Okml {
key: current.to_string(),
value: OkmlType::SubList(child)
};
parent.push(child_to_push);
index = new_index-1;
continue;
}
// parse (key: value)
if let Some(':') = current.chars().last() {
if value == &"```" {
let mut _current: &str;
let mut result: String = Default::default();
while index < token_len{
index = index+1;
_current = tokens.get(index+1).unwrap();
if _current == "```" {
break;
}
result.push_str(_current);
result.push_str(" ");
}
parent.push(Okml{
key: current.to_string(),
value: OkmlType::String(result.clone())
});
// info!("{} => {}", current, result);
} else {
let mut return_value: OkmlType;
match value {
&"true" | &"yes" => return_value = OkmlType::Boolean(true),
&"false" | &"no" => return_value = OkmlType::Boolean(false),
&"null" => return_value = OkmlType::Null,
&&_ => {
if let Ok(parsed) = value.parse::<i64>() {
return_value = OkmlType::Integer(parsed);
} else if let Ok(parsed) = value.parse::<f64>() {
return_value = OkmlType::Float(parsed);
} else {
return_value = OkmlType::String(value.to_string());
}
}
}
// match value
parent.push(Okml{
key: current.to_string(),
value: (return_value)
});
// info!("{} => {}", current, value);
}
} else {
// info!("{}", current);
}
index +=1
}
return (parent, index)
}
fn load_from_file(file_path: &str) {
let extension = &file_path[file_path.len()-4..file_path.len()];
if extension != "okml" {
error!("File is not in .okml {extension}");
std::process::exit(-1);
}
info!("File: {}", file_path);
let content = fs::read_to_string(file_path)
.expect("Should've read the file");
let re = Regex::new(r"[ \t\n]+").unwrap();
let tokens: Vec<&str> = re.split(&content).filter(|s| !s.is_empty()).collect();
let (parsed_ast, _) = parse(tokens, 0);
println!("{:#?}", parsed_ast);
}
fn main() {
env_logger::init();
let args: Vec<String> = std::env::args().collect();
let file_path = &args[1];
load_from_file(file_path);
}
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