209 lines
4.4 KiB
Rust
209 lines
4.4 KiB
Rust
mod buffer;
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pub use self::buffer::Buffer;
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use std::env;
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use std::fs::File;
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use std::io::BufReader;
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use std::io::prelude::*;
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use std::io;
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use nom::bytes::complete::{tag, take_while, take_till};
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use nom::character::complete::one_of;
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use nom::sequence::Tuple;
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use nom::branch::alt;
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use nom::error::ErrorKind;
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use nom::error::Error;
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const FILE : &'static str = "test";
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enum Address {
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Actual,
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Last,
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Line(u32),
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FromStartTo(u32),
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FromToEnd(u32),
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FromTo(u32, u32),
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Null,
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}
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enum Command {
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Append(Address),
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Insert(Address),
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Change(Address),
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Delete(Address),
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// bool pour check ou pas (e et E) TODO mettre le chemin vers le fichier
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Edit(bool),
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// TODO chemin vers fichier
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File(),
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// TODO
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Help,
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// TODO
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SetHelp,
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Join(Address),
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// TODO nom de la marque
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Mark(Address),
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List(Address),
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// TODO
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Move(Address),
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Number(Address),
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Print(Address),
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Prompt,
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// bool pour check ou pas (q et Q)
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Quit(bool),
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// TODO
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Read,
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// TODO
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Substitute,
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// TODO
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CopyLines,
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Undo,
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// TODO
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Write,
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// TODO
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Line,
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// TODO
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ShellCommand,
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// TODO
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Null,
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// TODO
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Global,
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// TODO
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NonMatched,
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}
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/*
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* .
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* $
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* [:digit:]
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* '[:alpha:]
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* /BRE/
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* +[:digit:]
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* -[:digit:]
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* [:digit:],[:digit:]
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* [:digit:];[:digit:]
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*/
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// TODO juste $ pour l'instant dans l'adresse
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// TODO faire les commandes mais juste p pour l'instant
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/*
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fn read_address(input: &str) -> Result<&str, Address> {
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}
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*/
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/*
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* Le char doit être une commande valide.
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*/
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fn parse_without_addr(c: char) -> Command {
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Command::Help
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}
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fn parse_with_addr(c: char, addr: Address) -> Command {
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match c {
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'p' => Command::Print(addr),
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'n' => Command::Number(addr),
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_ => Command::Help,
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}
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}
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fn parse_command(c: char, addr: Option<Address>) -> Command {
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if let Some(a) = addr {
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parse_with_addr(c, a)
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} else {
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parse_without_addr(c)
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}
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}
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/*
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fn parse_multi_addr(addr: &str) -> Address {
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//let extract = take_till::<&str, &str, Error>(|c| c == ',');
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let extract = take_till::<&str, &str, Error<&str>>(|c| c != ",");
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if let Ok((still, before)) = extract(addr) {
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if let Ok((still, after)) = extract(addr) {
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}
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}
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Address::Null
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}
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*/
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fn parse_address(addr: &str) -> Address {
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let mut tmp = String::from(addr);
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tmp.retain(|c| c != ' ');
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let addr = tmp.as_str();
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if addr.is_empty() {
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Address::Actual
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} else {
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match addr {
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"." => Address::Actual,
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"$" => Address::Last,
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_ => Address::Null,
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}
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}
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}
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fn check_address(c: char) -> bool {
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c.is_digit(10) || c == '$' || c == ' ' || c == '.'
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}
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fn check_address_complete(c: char) -> bool {
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check_address(c) || c == ','
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}
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fn print(buffer: Buffer, addr: Address, print_numbers: bool) {
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match addr {
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Address::Actual => buffer.print_line(buffer.act(), print_numbers),
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Address::Null => println!("nul !"),
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_ => println!("coucou2"),
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}
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}
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fn execute_command(buffer: Buffer, c: Command) {
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match c {
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Command::Print(a) => print(buffer, a, false),
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Command::Number(a) => print(buffer, a, true),
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_ => println!("coucou"),
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}
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}
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fn parse_line(input: &str) -> Result<Command, String> {
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let address = take_while(check_address_complete);
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let command = one_of::<_, _, (&str, ErrorKind)>("pn");
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//if let Ok((input, (a, c))) = alt(address, command).parse(input) {
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if let Ok((input, (a, c))) = (address, command).parse(input) {
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//println!("{:?} - {:?} - {:?}", input, a, c);
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let addr = parse_address(a);
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Ok(parse_command(c, Some(addr)))
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} else {
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Err(String::from("bruh moment"))
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}
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}
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fn main() {
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let buffer : Vec<Result<String, io::Error>> = if let Ok(f) = File::open(FILE) {
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let buff = BufReader::new(f);
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buff.lines().collect()
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} else {
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panic!("Le fichier n'existe pas.");
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};
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let buffer_struct = Buffer::new(buffer);
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println!("fichier lu !");
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let mut input = String::new();
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match io::stdin().read_line(&mut input) {
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Ok(n) => {
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if let Ok(c) = parse_line(&input) {
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execute_command(buffer_struct, c);
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} else {
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println!("coucou");
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}
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},
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Err(e) => println!("error"),
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}
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}
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