A snippet extractor for competitive programmers.
You can manage code snippet with test and bench !!
You need nightly rust.
$ cargo install cargo-snippet --features="binaries"
Create a project for snippet.
$ cargo new mysnippet
Add dependencies to Cargo.toml.
[dependencies]
cargo-snippet = "0.2"
Add this to src/lib.rs.
#![feature(plugin)]
#![plugin(cargo_snippet)]
Write some snippet codes and tests.
#![feature(plugin)]
#![plugin(cargo_snippet)]
// Annotate snippet name
#[snippet = "mymath"]
#[snippet = "gcd"]
fn gcd(a: u64, b: u64) -> u64 {
if b == 0 {
a
} else {
gcd(b, a % b)
}
}
// Also works
#[snippet(name = "mymath")]
// Equivalent to #[snippet = "lcm"]
#[snippet]
fn lcm(a: u64, b: u64) -> u64 {
a / gcd(a, b) * b
}
#[snippet]
// Include snippet
#[snippet(include = "gcd")]
fn gcd_list(list: &[u64]) -> u64 {
list.iter().fold(list[0], |a, b| gcd(a, b));
}
#[test]
fn test_gcd() {
assert_eq!(gcd(57, 3), 3);
}
#[test]
fn test_lcm() {
assert_eq!(lcm(3, 19), 57);
}
You can test.
$ cargo test
Extract snippet !
$ cargo snippet
snippet gcd
fn gcd(a: u64, b: u64) -> u64 {
if b == 0 {
a
} else {
gcd(b, a % b)
}
}
snippet gcd_list
fn gcd(a: u64, b: u64) -> u64 {
if b == 0 {
a
} else {
gcd(b, a % b)
}
}
fn gcd_list(list: &[u64]) -> u64 {
list.iter().fold(list[0], |a, b| gcd(a, b));
}
snippet lcm
fn lcm(a: u64, b: u64) -> u64 {
a / gcd(a, b) * b
}
snippet mymath
fn gcd(a: u64, b: u64) -> u64 {
if b == 0 {
a
} else {
gcd(b, a % b)
}
}
fn lcm(a: u64, b: u64) -> u64 {
a / gcd(a, b) * b
}
My snippets here.
- Neosnippet
- VScode
- Ultisnips
You can specify output format via -t
option.
See cargo snippet -h
.