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71 lines
2.1 KiB
71 lines
2.1 KiB
// The Computer Language Benchmarks Game
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// https://benchmarksgame-team.pages.debian.net/benchmarksgame/
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//
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// contributed by the Rust Project Developers
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// contributed by TeXitoi
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// contributed by BurntSushi
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extern crate regex;
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use std::io::{self, Read};
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use std::sync::Arc;
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use std::thread;
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macro_rules! regex {
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($re:expr) => {
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::regex::bytes::Regex::new($re).unwrap()
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};
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}
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fn main() {
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let mut seq = Vec::with_capacity(51 * (1 << 20));
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io::stdin().read_to_end(&mut seq).unwrap();
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let ilen = seq.len();
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seq = regex!(">[^\n]*\n|\n").replace_all(&seq, &b""[..]).into_owned();
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let clen = seq.len();
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let seq_arc = Arc::new(seq.clone());
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let variants = vec![
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regex!("agggtaaa|tttaccct"),
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regex!("[cgt]gggtaaa|tttaccc[acg]"),
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regex!("a[act]ggtaaa|tttacc[agt]t"),
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regex!("ag[act]gtaaa|tttac[agt]ct"),
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regex!("agg[act]taaa|ttta[agt]cct"),
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regex!("aggg[acg]aaa|ttt[cgt]ccct"),
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regex!("agggt[cgt]aa|tt[acg]accct"),
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regex!("agggta[cgt]a|t[acg]taccct"),
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regex!("agggtaa[cgt]|[acg]ttaccct"),
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];
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let mut counts = vec![];
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for variant in variants {
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let seq = seq_arc.clone();
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let restr = variant.to_string();
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let future = thread::spawn(move || variant.find_iter(&seq).count());
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counts.push((restr, future));
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}
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let substs = vec![
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(regex!("B"), &b"(c|g|t)"[..]),
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(regex!("D"), &b"(a|g|t)"[..]),
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(regex!("H"), &b"(a|c|t)"[..]),
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(regex!("K"), &b"(g|t)"[..]),
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(regex!("M"), &b"(a|c)"[..]),
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(regex!("N"), &b"(a|c|g|t)"[..]),
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(regex!("R"), &b"(a|g)"[..]),
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(regex!("S"), &b"(c|g)"[..]),
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(regex!("V"), &b"(a|c|g)"[..]),
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(regex!("W"), &b"(a|t)"[..]),
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(regex!("Y"), &b"(c|t)"[..]),
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];
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let mut seq = seq;
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for (re, replacement) in substs {
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seq = re.replace_all(&seq, replacement).into_owned();
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}
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for (variant, count) in counts {
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println!("{} {}", variant, count.join().unwrap());
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}
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println!("\n{}\n{}\n{}", ilen, clen, seq.len());
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}
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