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use std::path::{PathBuf,Path};
use std::collections::HashMap;
use core::error::Error;
use std::time::SystemTime;
mod lexer;
pub struct Tx {
fragments: HashMap<String, Fragment>,
sources: Vec<FragmentSource>,
}
#[derive(PartialEq,Eq,Debug,Clone)]
enum FragmentSource {
File {
path: PathBuf,
loaded: SystemTime,
},
Static,
External {
key: String,
},
}
struct Fragment {
name: String,
source: usize,
sections: HashMap<String, Section>,
}
struct Section {
name: String,
ast_root: Token,
}
type Properties = HashMap<String, String>;
enum Token {
Root(Vec<Token>),
Fragment(String,Properties,Vec<Token>),
Section(String,Properties,Vec<Token>),
Text(String),
}
struct State {
}
impl Tx {
pub fn new() -> Self {
Self {
fragments: HashMap::new(),
sources: vec![Frament::Static],
}
}
fn id_source(&mut self, src: &FragmentSource ) -> usize {
for idx in 0..self.sources.len() {
if self.sources[idx] == src {
return idx;
}
}
// Nothing found, add a new one
let idx = self.sources.len();
self.sources.push( src.clone() );
idx
}
pub fn load_file(&mut self, path: &Path) -> Result<(),Box::<dyn Error>> {
let time = if let Ok(meta) = path.metadata() {
if let Ok(t) = meta.modified() {
t
} else if let Ok(t) = meta.created() {
t
} else {
SystemTime::now()
}
} else {
SystemTime.now()
};
let mut file = File::open( path )?;
let mut ll = lexer::Lexer( &String::from_utf8( file.read()? )? );
Ok(())
}
pub fn load_static(&mut self, data: &str) -> Result<(),Box::<dyn Error>> {
Ok(())
}
pub fn load_external(&mut self, key: &str, data: &str) -> Result<(),Box::<dyn Error>> {
Ok(())
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn lexing() {
let data = r#"Leading comment: [|fragment "basic"|>Hello there <|fragment|] Trailing text"#;
let ll = lexer::Lexer::new( &data );
for sym in ll {
if let lexer::Symbol::Error{line,row,what} = sym {
println!("Error {}:{}: {}", line, row, what );
break;
} else {
println!("Symbol: {:?}", sym );
}
}
}
}
|
