written initial prototype in rust
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FantasyPvP
Generated
+48
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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version = 3
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[[package]]
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name = "cc"
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version = "1.1.31"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "c2e7962b54006dcfcc61cb72735f4d89bb97061dd6a7ed882ec6b8ee53714c6f"
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dependencies = [
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"shlex",
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]
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[[package]]
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name = "cs_coursework_editor_draft"
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version = "0.1.0"
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dependencies = [
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"ncurses",
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]
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[[package]]
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name = "libc"
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version = "0.2.161"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "8e9489c2807c139ffd9c1794f4af0ebe86a828db53ecdc7fea2111d0fed085d1"
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[[package]]
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name = "ncurses"
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version = "6.0.1"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "fbd71afa95710e841d173521e8483e764004eb332bdf47bd01d00f568688027f"
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dependencies = [
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"cc",
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"libc",
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"pkg-config",
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]
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[[package]]
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name = "pkg-config"
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version = "0.3.31"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "953ec861398dccce10c670dfeaf3ec4911ca479e9c02154b3a215178c5f566f2"
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[[package]]
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name = "shlex"
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version = "1.3.0"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "0fda2ff0d084019ba4d7c6f371c95d8fd75ce3524c3cb8fb653a3023f6323e64"
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@@ -0,0 +1,7 @@
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[package]
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name = "cs_coursework_editor_draft"
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version = "0.1.0"
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edition = "2021"
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[dependencies]
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ncurses = "6.0.1"
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@@ -0,0 +1 @@
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[package] name = "cs_coursework_editor_draft" version = "0.1.0" edition = "2021" [dependencies] ncurses = "6.0.1" i may have made a very scuffed version of vim.
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@@ -0,0 +1,149 @@
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extern crate ncurses;
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use std::{env, fs::{self, File, OpenOptions}, io::Write};
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struct EditorData {
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file_line: i32,
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file_col: i32,
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buff_line: i32,
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buff_col: i32,
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editmode: bool,
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}
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impl EditorData {
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fn new() -> EditorData {
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EditorData {
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file_line: 0,
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file_col: 0,
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buff_line: 0,
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buff_col: 0,
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editmode: false,
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}
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}
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}
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fn main() {
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let args = env::args().collect::<Vec<String>>();
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if let Some(a) = env::args().nth(1) {
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match a.as_str() {
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"open" => open(&args[2]).unwrap(),
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// "rm" => rm(&args[2]),
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// "new" => new(&args[2]),
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// "mv" => mv(&args[2], &args[3]),
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// "cp" => cp(&args[2], &args[3]),
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// "len" => len(&args[2]),
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// "log" => log(),
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_ => help(),
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}
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} else {
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help();
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}
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}
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fn help() {
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println!("Usage:
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cmd open <path/to/file> // opens the specified file
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cmd rm <path/to/file> // deletes the specified file
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cmd new <path/to/file> // creates a new empty file at the specified path
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cmd mv <path/to/file> <new/path> // moves the specified file to the new path
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cmd cp <path/to/file> <new/path> // copies the specified file to the new path
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cmd len <path/to/file> // returns the length of the specified file
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cmd log // prints a list of all changes made to the file
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")
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}
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fn open(filename: &str) -> Result<(), &'static str> {
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let filestr = match fs::read_to_string(filename) {
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Ok(s) => s,
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Err(_) => return Err("file not found"),
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};
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let mut data = EditorData::new();
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ncurses::initscr();
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ncurses::raw();
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ncurses::noecho();
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ncurses::keypad(ncurses::stdscr(), true);
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let mut max_y = 0;
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let mut max_x = 0;
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ncurses::getmaxyx(ncurses::stdscr(), &mut max_y, &mut max_x);
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if let Err(_) = ncurses::addstr(&filestr) {
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ncurses::endwin();
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return Err("error writing file to buffer");
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};
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ncurses::mv(0, 0);
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loop {
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ncurses::refresh();
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let keystroke = ncurses::getch();
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if data.editmode {
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match keystroke {
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27 => data.editmode = false,
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ncurses::KEY_BACKSPACE => {
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mv_cursor(&mut data, 0, -1);
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ncurses::delch();
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},
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ncurses::KEY_DC => { ncurses::delch(); },
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ncurses::KEY_LEFT => mv_cursor(&mut data, 0, -1),
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ncurses::KEY_RIGHT => mv_cursor(&mut data, 0, 1),
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ncurses::KEY_UP => mv_cursor(&mut data, -1, 0),
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ncurses::KEY_DOWN => mv_cursor(&mut data, 1, 0),
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_ => { ncurses::insch(keystroke as u32); mv_cursor(&mut data, 0, 1); },
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}
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} else {
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match keystroke {
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105 => {
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data.editmode = true;
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},
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119 => {
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let buff_size = max_y * max_x;
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let mut buff = vec![0; buff_size as usize];
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for i in 0..buff_size {
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buff[i as usize] = (ncurses::mvwinch(ncurses::stdscr(), i / max_x, i % max_x) & ncurses::A_CHARTEXT) as u8;
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}
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ncurses::endwin();
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OpenOptions::new()
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.write(true)
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.truncate(true)
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.open(filename)
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.unwrap()
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.write_all(&buff)
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.unwrap();
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}
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113 => {
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ncurses::endwin();
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return Ok(());
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},
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_ => {},
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}
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}
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}
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}
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fn mv_cursor(pos: &mut EditorData, dy: i32, dx: i32) {
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if pos.file_col + dx >= 0 {
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pos.file_col += dx;
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}
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if pos.buff_col + dx >= 0 {
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pos.buff_col += dx;
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}
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if pos.file_line + dy >= 0 {
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pos.file_line += dy;
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}
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if pos.buff_line + dy >= 0 {
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pos.buff_line += dy;
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}
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ncurses::mv(pos.buff_line, pos.buff_col);
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}
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