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//! cassiopeia file format
mod ir;
mod lexer;
mod parser;
pub(crate) use ir::{IrItem, IrStream, IrType, MakeIr};
pub(crate) use lexer::{LineLexer, LineToken, Token};
pub(crate) use parser::LineCfg;
use crate::TimeFile;
use std::{fs::File, io::Read};
#[derive(Default)]
pub struct ParseOutput {
pub(crate) ir: IrStream,
pub(crate) tf: TimeFile,
}
impl ParseOutput {
fn append(mut self, ir: IrItem) -> Self {
self.tf.append(ir.clone());
self.ir.push(ir);
self
}
}
/// Load a file from disk and parse it into a
/// [`TimeFile`](crate::TimeFile)
pub fn load_file(path: &str) -> Option<ParseOutput> {
let mut f = File::open(path).ok()?;
let mut content = String::new();
f.read_to_string(&mut content).ok()?;
let mut lines: Vec<String> = content.split("\n").map(|l| l.to_owned()).collect();
Some(
ir::generate_ir(
lines
.iter_mut()
.map(|line| lexer::lex(line))
.map(|lex| parser::parse(lex)),
)
.into_iter()
.fold(ParseOutput::default(), |output, ir| output.append(ir)),
)
}
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