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Hatter Jiang
2020-10-17 12:03:44 +08:00
parent bf1a0343cc
commit 004599c8e4
19 changed files with 0 additions and 0 deletions
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16
__misc/lazy_static/Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "lazy_static"
version = "0.1.0"
dependencies = [
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
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[[package]]
name = "lazy_static"
version = "1.4.0"
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10
__misc/lazy_static/Cargo.toml Normal file
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[package]
name = "lazy_static"
version = "0.1.0"
authors = ["Hatter Jiang <jht5945@gmail.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
lazy_static = "1.4.0"

10
__misc/lazy_static/src/main.rs Normal file
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#[macro_use]
extern crate lazy_static;
lazy_static! {
static ref USER_HOME: Option<String> = std::env::var("HOME").ok();
}
fn main() {
println!("User home: {:?}", *USER_HOME);
}

33
__misc/num_cpus/Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "hermit-abi"
version = "0.1.12"
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dependencies = [
"libc",
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[[package]]
name = "num_cpus"
version = "0.1.0"
dependencies = [
"num_cpus 1.13.0",
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name = "num_cpus"
version = "1.13.0"
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10
__misc/num_cpus/Cargo.toml Normal file
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[package]
name = "num_cpus"
version = "0.1.0"
authors = ["Hatter Jiang <jht5945@gmail.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
num_cpus = "1.13.0"

5
__misc/num_cpus/src/main.rs Normal file
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fn main() {
println!("num of cpus: {}", num_cpus::get());
println!("num of cpus: {}", num_cpus::get_physical());
}

58
__misc/regex/Cargo.lock generated Normal file
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13
__misc/regex/Cargo.toml Normal file
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[package]
name = "regex"
version = "0.1.0"
authors = ["Hatter Jiang <jht5945@gmail.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
regex = "1.3.1"

40
__misc/regex/src/main.rs Normal file
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use regex::Regex;
const TO_SEARCH: &str = "
On 2010-03-14, foo happened. On 2014-10-14, bar happened.
";
fn main() {
let re = Regex::new(r"(\d{4})-(\d{2})-(\d{2})").unwrap();
// year: 2010, month: 03, day: 14
// year: 2014, month: 10, day: 14
for caps in re.captures_iter(TO_SEARCH) {
println!("year: {}, month: {}, day: {}",
caps.get(1).unwrap().as_str(),
caps.get(2).unwrap().as_str(),
caps.get(3).unwrap().as_str());
}
let re2 = Regex::new(r"(\d+)").unwrap();
println!("{}", re2.replace_all("Hello 100, 200", | caps: &regex::Captures | {
"(".to_owned() + &(caps[1].parse::<usize>().unwrap() * 2).to_string() + ")"
}));
println!("{}", re2.replace_all("Hello 100, 200", | caps: &regex::Captures<'_> | {
"[".to_owned() + &caps[1] + "]"
}));
let re3 = Regex::new(r"(?P<x>\d+)").unwrap();
println!("{}", re3.replace_all("Hello 100, 200", "<$x>"));
let e = "name@example.com";
let re_e = Regex::new(r"^(\w+)@((\w+)*\.com)$").unwrap();
// name -> name
// domain -> example.com
// domain -> example
for cap in re_e.captures_iter(e) {
println!("name -> {}", cap.get(1).unwrap().as_str());
println!("domain -> {}", cap.get(2).unwrap().as_str());
println!("domain -> {}", cap.get(3).unwrap().as_str());
}
}

23
__misc/smartstring/Cargo.lock generated Normal file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "smartstring"
version = "0.1.0"
dependencies = [
"smartstring 0.2.5",
]
[[package]]
name = "smartstring"
version = "0.2.5"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "5579edba9651e6b9ccf0d516c4457521a149dadeb77e88b03eb1ae3183fe180a"
dependencies = [
"static_assertions",
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10
__misc/smartstring/Cargo.toml Normal file
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[package]
name = "smartstring"
version = "0.1.0"
authors = ["Hatter Jiang <jht5945@gmail.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
smartstring = "*"

8
__misc/smartstring/README.md Normal file
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reference:
https://fasterthanli.me/articles/peeking-inside-a-rust-enum
PDF:
https://playsecurity.org/getdoc/3960_FF94A1BACA2F799268DB484102E074D0/Peeking%20inside%20a%20Rust%20enum.pdf

11
__misc/smartstring/src/main.rs Normal file
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use smartstring::{Compact, SmartString};
use std::mem::size_of_val;
fn main() {
let smart = SmartString::<Compact>::from("hello world");
dbg!(size_of_val(&smart));
let stand = String::from("hello world");
dbg!(size_of_val(&stand));
dbg!(size_of_val(&stand) + stand.capacity());
}

61
__misc/walkdir/Cargo.lock generated Normal file
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10
__misc/walkdir/Cargo.toml Normal file
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[package]
name = "walkdir"
version = "0.1.0"
authors = ["Hatter Jiang <jht5945@gmail.com>"]
edition = "2018"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
walkdir = "2.3.1"

13
__misc/walkdir/src/main.rs Normal file
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use walkdir::WalkDir;
fn main() {
for entry in WalkDir::new(".") {
match entry {
Ok(en) => {
let is_dir = en.path().is_dir();
println!("-- {} {}", en.path().display(), if is_dir { "[DIR]" } else { "" });
},
Err(er) => println!("[ERROR] {}", er),
}
}
}