1de4b65d2a
1. Wherever the `buf` field of a `Formatter` was used, the `Formatter` is used instead. 2. The usage of `write_fmt` is minimized as much as possible, the `write!` macro is preferred wherever possible. 3. Usage of `fmt::write` is minimized, favoring the `write!` macro instead.
86 lines
2.0 KiB
Rust
86 lines
2.0 KiB
Rust
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// Copyright 2012-2014 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(managed_boxes)]
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/// Map representation
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use std::io;
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use std::fmt;
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enum square {
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bot,
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wall,
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rock,
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lambda,
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closed_lift,
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open_lift,
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earth,
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empty
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}
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impl fmt::Show for square {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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write!(f, "{}", match *self {
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bot => { "R".to_owned() }
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wall => { "#".to_owned() }
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rock => { "*".to_owned() }
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lambda => { "\\".to_owned() }
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closed_lift => { "L".to_owned() }
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open_lift => { "O".to_owned() }
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earth => { ".".to_owned() }
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empty => { " ".to_owned() }
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})
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}
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}
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fn square_from_char(c: char) -> square {
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match c {
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'R' => { bot }
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'#' => { wall }
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'*' => { rock }
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'\\' => { lambda }
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'L' => { closed_lift }
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'O' => { open_lift }
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'.' => { earth }
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' ' => { empty }
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_ => {
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println!("invalid square: {:?}", c);
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fail!()
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}
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}
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}
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fn read_board_grid<rdr:'static + io::Reader>(mut input: rdr)
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-> Vec<Vec<square>> {
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let mut input: &mut io::Reader = &mut input;
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let mut grid = Vec::new();
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let mut line = [0, ..10];
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input.read(line);
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let mut row = Vec::new();
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for c in line.iter() {
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row.push(square_from_char(*c as char))
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}
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grid.push(row);
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let width = grid.get(0).len();
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for row in grid.iter() { assert!(row.len() == width) }
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grid
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}
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mod test {
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#[test]
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pub fn trivial_to_str() {
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assert!(lambda.to_str() == "\\")
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}
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}
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pub fn main() {}
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