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Use lazy_static for parse_choice regex

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Ryan Geary 2020-03-15 16:30:59 -04:00
parent afb4bf4734
commit f87a3f1658
4 changed files with 10 additions and 3 deletions
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1
Cargo.lock generated
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@ -34,6 +34,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
name = "choose"
version = "0.1.3"
dependencies = [
"lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
"regex 1.3.1 (registry+https://github.com/rust-lang/crates.io-index)",
"structopt 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)",
]

1
Cargo.toml
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@ -9,3 +9,4 @@ edition = "2018"
[dependencies]
structopt = "0.3.0"
regex = "1"
lazy_static = "1"

8
src/config.rs
View file

@ -32,6 +32,10 @@ pub struct Opt {
pub choice: Vec<Choice>,
}
lazy_static! {
static ref PARSE_CHOICE_RE: Regex = Regex::new(r"^(\d*):(\d*)$").unwrap();
}
pub struct Config {
pub opt: Opt,
pub separator: Regex,
@ -77,9 +81,7 @@ impl Config {
}
pub fn parse_choice(src: &str) -> Result<Choice, ParseIntError> {
let re = Regex::new(r"^(\d*):(\d*)$").unwrap();
let cap = match re.captures_iter(src).next() {
let cap = match PARSE_CHOICE_RE.captures_iter(src).next() {
Some(v) => v,
None => match src.parse() {
Ok(x) => return Ok(Choice::new(x, x)),

3
src/main.rs
View file

@ -2,6 +2,9 @@ use std::fs::File;
use std::io::{self, Read, Write};
use structopt::StructOpt;
#[macro_use]
extern crate lazy_static;
mod choice;
mod config;
mod reader;