Salto de complejidad enorme; hasta nuevo aviso
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"winapi-i686-pc-windows-gnu",
|
||||||
|
"winapi-x86_64-pc-windows-gnu",
|
||||||
|
]
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-i686-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
|
||||||
|
|
||||||
|
[[package]]
|
||||||
|
name = "winapi-x86_64-pc-windows-gnu"
|
||||||
|
version = "0.4.0"
|
||||||
|
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||||
|
checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
|
|
@ -0,0 +1,14 @@
|
||||||
|
[package]
|
||||||
|
name = "cat"
|
||||||
|
version = "0.1.0"
|
||||||
|
edition = "2021"
|
||||||
|
|
||||||
|
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||||
|
|
||||||
|
[dependencies]
|
||||||
|
clap = "2.33"
|
||||||
|
|
||||||
|
[dev-dependencies]
|
||||||
|
assert_cmd = "2"
|
||||||
|
predicates = "2"
|
||||||
|
rand = "0.8"
|
|
@ -0,0 +1,70 @@
|
||||||
|
use std::error::Error;
|
||||||
|
use clap::{App, Arg};
|
||||||
|
use std::fs::File;
|
||||||
|
use std::io::{self, BufRead, BufReader};
|
||||||
|
|
||||||
|
type MyResult<T> = Result<T, Box<dyn Error>>;
|
||||||
|
|
||||||
|
#[derive(Debug)]
|
||||||
|
pub struct Config {
|
||||||
|
files: Vec<String>,
|
||||||
|
numbered: bool,
|
||||||
|
nonblank: bool,
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn run(config: Config) -> MyResult<()> {
|
||||||
|
for filename in config.files {
|
||||||
|
match open(&filename) {
|
||||||
|
Err(err) => eprintln!("Failed to open {}: {}", filename, err),
|
||||||
|
Ok(file) => print(&file, &config.numbered, &config.nonblank),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
pub fn get_args() -> MyResult<Config> {
|
||||||
|
let matches = App::new("cat")
|
||||||
|
.version("0.1.0")
|
||||||
|
.author("perro <hi@perrotuerto.blog>")
|
||||||
|
.about("Rust cat")
|
||||||
|
.arg(
|
||||||
|
Arg::with_name("files")
|
||||||
|
.value_name("ARCHIVOS")
|
||||||
|
.help("Archivos de entrada")
|
||||||
|
.multiple(true)
|
||||||
|
.default_value("-"),
|
||||||
|
)
|
||||||
|
.arg(
|
||||||
|
Arg::with_name("numbered")
|
||||||
|
.short("n")
|
||||||
|
.long("number")
|
||||||
|
.help("Imprime números de línea")
|
||||||
|
.takes_value(false)
|
||||||
|
.conflicts_with("nonblank"),
|
||||||
|
)
|
||||||
|
.arg(
|
||||||
|
Arg::with_name("nonblank")
|
||||||
|
.short("b")
|
||||||
|
.long("number-nonblank")
|
||||||
|
.help("Imprime números de línea solo si no están vacías")
|
||||||
|
.takes_value(false),
|
||||||
|
)
|
||||||
|
.get_matches();
|
||||||
|
|
||||||
|
Ok(Config {
|
||||||
|
files: matches.values_of_lossy("files").unwrap(),
|
||||||
|
numbered: matches.is_present("numbered"),
|
||||||
|
nonblank: matches.is_present("nonblank"),
|
||||||
|
})
|
||||||
|
}
|
||||||
|
|
||||||
|
fn open(filename: &str) -> MyResult<Box<dyn BufRead>> {
|
||||||
|
match filename {
|
||||||
|
"-" => Ok(Box::new(BufReader::new(io::stdin()))),
|
||||||
|
_ => Ok(Box::new(BufReader::new(File::open(filename)?))),
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
fn print(_file: &Box<dyn BufRead>, _numbered: &bool, _nonblank: &bool) {
|
||||||
|
// TODO
|
||||||
|
}
|
|
@ -0,0 +1,6 @@
|
||||||
|
fn main () {
|
||||||
|
if let Err(e) = cat::get_args().and_then(cat::run) {
|
||||||
|
eprintln!("{}", e);
|
||||||
|
std::process::exit(1);
|
||||||
|
}
|
||||||
|
}
|
|
@ -0,0 +1,200 @@
|
||||||
|
use assert_cmd::Command;
|
||||||
|
use predicates::prelude::*;
|
||||||
|
use rand::{distributions::Alphanumeric, Rng};
|
||||||
|
use std::error::Error;
|
||||||
|
use std::fs;
|
||||||
|
|
||||||
|
type TestResult = Result<(), Box<dyn Error>>;
|
||||||
|
|
||||||
|
const PRG: &str = "cat";
|
||||||
|
const EMPTY: &str = "tests/inputs/empty.txt";
|
||||||
|
const FOX: &str = "tests/inputs/fox.txt";
|
||||||
|
const SPIDERS: &str = "tests/inputs/spiders.txt";
|
||||||
|
const BUSTLE: &str = "tests/inputs/the-bustle.txt";
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn usage() -> TestResult {
|
||||||
|
for flag in &["-h", "--help"] {
|
||||||
|
Command::cargo_bin(PRG)?
|
||||||
|
.arg(flag)
|
||||||
|
.assert()
|
||||||
|
.stdout(predicate::str::contains("USAGE"));
|
||||||
|
}
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
fn gen_bad_file() -> String {
|
||||||
|
loop {
|
||||||
|
let filename: String = rand::thread_rng()
|
||||||
|
.sample_iter(&Alphanumeric)
|
||||||
|
.take(7)
|
||||||
|
.map(char::from)
|
||||||
|
.collect();
|
||||||
|
|
||||||
|
if fs::metadata(&filename).is_err() {
|
||||||
|
return filename;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn skips_bad_file() -> TestResult {
|
||||||
|
let bad = gen_bad_file();
|
||||||
|
let expected = format!("{}: .* [(]os error 2[)]", bad);
|
||||||
|
Command::cargo_bin(PRG)?
|
||||||
|
.arg(&bad)
|
||||||
|
.assert()
|
||||||
|
.success()
|
||||||
|
.stderr(predicate::str::is_match(expected)?);
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
fn run(args: &[&str], expected_file: &str) -> TestResult {
|
||||||
|
let expected = fs::read_to_string(expected_file)?;
|
||||||
|
Command::cargo_bin(PRG)?
|
||||||
|
.args(args)
|
||||||
|
.assert()
|
||||||
|
.success()
|
||||||
|
.stdout(expected);
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
fn run_stdin(
|
||||||
|
input_file: &str,
|
||||||
|
args: &[&str],
|
||||||
|
expected_file: &str,
|
||||||
|
) -> TestResult {
|
||||||
|
let input = fs::read_to_string(input_file)?;
|
||||||
|
let expected = fs::read_to_string(expected_file)?;
|
||||||
|
Command::cargo_bin(PRG)?
|
||||||
|
.args(args)
|
||||||
|
.write_stdin(input)
|
||||||
|
.assert()
|
||||||
|
.success()
|
||||||
|
.stdout(expected);
|
||||||
|
Ok(())
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn bustle_stdin() -> TestResult {
|
||||||
|
run_stdin(BUSTLE, &["-"], "tests/expected/the-bustle.txt.stdin.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn bustle_stdin_n() -> TestResult {
|
||||||
|
run_stdin(
|
||||||
|
BUSTLE,
|
||||||
|
&["-n", "-"],
|
||||||
|
"tests/expected/the-bustle.txt.n.stdin.out",
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn bustle_stdin_b() -> TestResult {
|
||||||
|
run_stdin(
|
||||||
|
BUSTLE,
|
||||||
|
&["-b", "-"],
|
||||||
|
"tests/expected/the-bustle.txt.b.stdin.out",
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn empty() -> TestResult {
|
||||||
|
run(&[EMPTY], "tests/expected/empty.txt.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn empty_n() -> TestResult {
|
||||||
|
run(&["-n", EMPTY], "tests/expected/empty.txt.n.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn empty_b() -> TestResult {
|
||||||
|
run(&["-b", EMPTY], "tests/expected/empty.txt.b.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn fox() -> TestResult {
|
||||||
|
run(&[FOX], "tests/expected/fox.txt.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn fox_n() -> TestResult {
|
||||||
|
run(&["-n", FOX], "tests/expected/fox.txt.n.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn fox_b() -> TestResult {
|
||||||
|
run(&["-b", FOX], "tests/expected/fox.txt.b.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn spiders() -> TestResult {
|
||||||
|
run(&[SPIDERS], "tests/expected/spiders.txt.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn spiders_n() -> TestResult {
|
||||||
|
run(&["--number", SPIDERS], "tests/expected/spiders.txt.n.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn spiders_b() -> TestResult {
|
||||||
|
run(
|
||||||
|
&["--number-nonblank", SPIDERS],
|
||||||
|
"tests/expected/spiders.txt.b.out",
|
||||||
|
)
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn bustle() -> TestResult {
|
||||||
|
run(&[BUSTLE], "tests/expected/the-bustle.txt.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn bustle_n() -> TestResult {
|
||||||
|
run(&["-n", BUSTLE], "tests/expected/the-bustle.txt.n.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn bustle_b() -> TestResult {
|
||||||
|
run(&["-b", BUSTLE], "tests/expected/the-bustle.txt.b.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn all() -> TestResult {
|
||||||
|
run(&[FOX, SPIDERS, BUSTLE], "tests/expected/all.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn all_n() -> TestResult {
|
||||||
|
run(&[FOX, SPIDERS, BUSTLE, "-n"], "tests/expected/all.n.out")
|
||||||
|
}
|
||||||
|
|
||||||
|
// --------------------------------------------------
|
||||||
|
#[test]
|
||||||
|
fn all_b() -> TestResult {
|
||||||
|
run(&[FOX, SPIDERS, BUSTLE, "-b"], "tests/expected/all.b.out")
|
||||||
|
}
|
|
@ -0,0 +1,13 @@
|
||||||
|
1 The quick brown fox jumps over the lazy dog.
|
||||||
|
1 Don't worry, spiders,
|
||||||
|
2 I keep house
|
||||||
|
3 casually.
|
||||||
|
1 The bustle in a house
|
||||||
|
2 The morning after death
|
||||||
|
3 Is solemnest of industries
|
||||||
|
4 Enacted upon earth,—
|
||||||
|
|
||||||
|
5 The sweeping up the heart,
|
||||||
|
6 And putting love away
|
||||||
|
7 We shall not want to use again
|
||||||
|
8 Until eternity.
|
|
@ -0,0 +1,13 @@
|
||||||
|
1 The quick brown fox jumps over the lazy dog.
|
||||||
|
1 Don't worry, spiders,
|
||||||
|
2 I keep house
|
||||||
|
3 casually.
|
||||||
|
1 The bustle in a house
|
||||||
|
2 The morning after death
|
||||||
|
3 Is solemnest of industries
|
||||||
|
4 Enacted upon earth,—
|
||||||
|
5
|
||||||
|
6 The sweeping up the heart,
|
||||||
|
7 And putting love away
|
||||||
|
8 We shall not want to use again
|
||||||
|
9 Until eternity.
|
|
@ -0,0 +1,13 @@
|
||||||
|
The quick brown fox jumps over the lazy dog.
|
||||||
|
Don't worry, spiders,
|
||||||
|
I keep house
|
||||||
|
casually.
|
||||||
|
The bustle in a house
|
||||||
|
The morning after death
|
||||||
|
Is solemnest of industries
|
||||||
|
Enacted upon earth,—
|
||||||
|
|
||||||
|
The sweeping up the heart,
|
||||||
|
And putting love away
|
||||||
|
We shall not want to use again
|
||||||
|
Until eternity.
|
|
@ -0,0 +1 @@
|
||||||
|
1 The quick brown fox jumps over the lazy dog.
|
|
@ -0,0 +1 @@
|
||||||
|
1 The quick brown fox jumps over the lazy dog.
|
|
@ -0,0 +1 @@
|
||||||
|
The quick brown fox jumps over the lazy dog.
|
|
@ -0,0 +1,3 @@
|
||||||
|
1 Don't worry, spiders,
|
||||||
|
2 I keep house
|
||||||
|
3 casually.
|
|
@ -0,0 +1,3 @@
|
||||||
|
1 Don't worry, spiders,
|
||||||
|
2 I keep house
|
||||||
|
3 casually.
|
|
@ -0,0 +1,3 @@
|
||||||
|
Don't worry, spiders,
|
||||||
|
I keep house
|
||||||
|
casually.
|
|
@ -0,0 +1,9 @@
|
||||||
|
1 The bustle in a house
|
||||||
|
2 The morning after death
|
||||||
|
3 Is solemnest of industries
|
||||||
|
4 Enacted upon earth,—
|
||||||
|
|
||||||
|
5 The sweeping up the heart,
|
||||||
|
6 And putting love away
|
||||||
|
7 We shall not want to use again
|
||||||
|
8 Until eternity.
|
|
@ -0,0 +1,9 @@
|
||||||
|
1 The bustle in a house
|
||||||
|
2 The morning after death
|
||||||
|
3 Is solemnest of industries
|
||||||
|
4 Enacted upon earth,—
|
||||||
|
|
||||||
|
5 The sweeping up the heart,
|
||||||
|
6 And putting love away
|
||||||
|
7 We shall not want to use again
|
||||||
|
8 Until eternity.
|
|
@ -0,0 +1,9 @@
|
||||||
|
1 The bustle in a house
|
||||||
|
2 The morning after death
|
||||||
|
3 Is solemnest of industries
|
||||||
|
4 Enacted upon earth,—
|
||||||
|
5
|
||||||
|
6 The sweeping up the heart,
|
||||||
|
7 And putting love away
|
||||||
|
8 We shall not want to use again
|
||||||
|
9 Until eternity.
|
|
@ -0,0 +1,9 @@
|
||||||
|
1 The bustle in a house
|
||||||
|
2 The morning after death
|
||||||
|
3 Is solemnest of industries
|
||||||
|
4 Enacted upon earth,—
|
||||||
|
5
|
||||||
|
6 The sweeping up the heart,
|
||||||
|
7 And putting love away
|
||||||
|
8 We shall not want to use again
|
||||||
|
9 Until eternity.
|
|
@ -0,0 +1,9 @@
|
||||||
|
The bustle in a house
|
||||||
|
The morning after death
|
||||||
|
Is solemnest of industries
|
||||||
|
Enacted upon earth,—
|
||||||
|
|
||||||
|
The sweeping up the heart,
|
||||||
|
And putting love away
|
||||||
|
We shall not want to use again
|
||||||
|
Until eternity.
|
|
@ -0,0 +1,9 @@
|
||||||
|
The bustle in a house
|
||||||
|
The morning after death
|
||||||
|
Is solemnest of industries
|
||||||
|
Enacted upon earth,—
|
||||||
|
|
||||||
|
The sweeping up the heart,
|
||||||
|
And putting love away
|
||||||
|
We shall not want to use again
|
||||||
|
Until eternity.
|
|
@ -0,0 +1 @@
|
||||||
|
The quick brown fox jumps over the lazy dog.
|
|
@ -0,0 +1,3 @@
|
||||||
|
Don't worry, spiders,
|
||||||
|
I keep house
|
||||||
|
casually.
|
|
@ -0,0 +1,9 @@
|
||||||
|
The bustle in a house
|
||||||
|
The morning after death
|
||||||
|
Is solemnest of industries
|
||||||
|
Enacted upon earth,—
|
||||||
|
|
||||||
|
The sweeping up the heart,
|
||||||
|
And putting love away
|
||||||
|
We shall not want to use again
|
||||||
|
Until eternity.
|
Loading…
Reference in New Issue