Rust tagfinder

This commit is contained in:
Samuel Ortion 2024-11-08 12:42:59 +01:00
parent 53f6a60943
commit 13f872cf10
Signed by: sortion
GPG Key ID: 9B02406F8C4FB765
7 changed files with 448 additions and 0 deletions

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version = "0.1.0"
edition = "2021"
[dependencies]
clap = { version = "4.5.20", features = ["derive"] }

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rust/tagfinder/Makefile Normal file
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run:
cargo run -- --families test/samples/families.tsv --positions test/samples/position.tsv --definitions 0,1

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use std::cmp::Ordering;
use std::collections::HashMap;
use std::fs::File;
use std::io::{self, BufRead};
use std::path::Path;
fn read_lines<P>(filename: P) -> io::Result<io::Lines<io::BufReader<File>>>
where
P: AsRef<Path>,
{
let file = File::open(filename)?;
Ok(io::BufReader::new(file).lines())
}
pub fn parse_families<P>(filename: P) -> HashMap<String, u64>
where
P: AsRef<Path>,
{
let mut map: HashMap<String, u64> = HashMap::new();
if let Ok(lines) = read_lines(filename) {
for line in lines.flatten() {
let parts: Vec<&str> = line.split("\t").collect();
let gene = parts[0];
let family: u64 = parts[1].parse().unwrap();
map.insert(gene.to_string(), family);
}
}
map
}
pub fn parse_position<P>(filename: P) -> Vec<(String, String, u64, u64)>
where
P: AsRef<Path>,
{
let mut vec: Vec<(String, String, u64, u64)> = Vec::new();
if let Ok(lines) = read_lines(filename) {
for line in lines.flatten() {
let parts: Vec<&str> = line.split("\t").collect();
let gene = parts[0];
let chromosome = parts[1];
let start: u64 = parts[2].parse().unwrap();
let end: u64 = parts[3].parse().unwrap();
vec.push((gene.to_string(), chromosome.to_string(), start, end));
}
}
vec
}
pub fn compare_gene_position(
position_a: &(String, String, u64, u64),
position_b: &(String, String, u64, u64),
) -> Ordering {
let (_gene_a, chromosome_a, start_a, _end_b) = position_a;
let (_gene_b, chromosome_b, start_b, _end_b) = position_b;
if chromosome_a < chromosome_b {
return Ordering::Less;
} else if chromosome_a > chromosome_b {
return Ordering::Greater;
} else {
if start_a < start_b {
return Ordering::Less;
} else {
return Ordering::Greater;
}
}
}
pub fn detect_tag_of_definitions(
definitions: &Vec<u64>,
gene_positions: &Vec<(String, String, u64, u64)>,
gene_families: &HashMap<String, u64>,
) -> HashMap<String, (String, Vec<Option<u64>>)> {
let mut tag_numbers: HashMap<String, (String, Vec<Option<u64>>)> = HashMap::new();
for definition in definitions {
let tag_numbers_def = detect_tag_of_definition(*definition, gene_positions, gene_families);
for (gene, (family, tag)) in tag_numbers_def {
if tag_numbers.contains_key(&gene) {
let (_gene, tags) = tag_numbers.get_mut(&gene).unwrap();
tags.push(tag);
} else {
tag_numbers.insert(gene, (family, vec![tag]));
}
}
}
tag_numbers
}
pub fn detect_tag_of_definition(
definition: u64,
gene_positions: &Vec<(String, String, u64, u64)>,
gene_families: &HashMap<String, u64>,
) -> HashMap<String, (String, Option<u64>)> {
let mut tag_numbers: HashMap<String, (String, Option<u64>)> = HashMap::new();
let mut spacer_index: u64 = 0;
let mut tag_index: u64 = 0;
for (i, (gene_i, chromosome_i, _start_i, _end_i)) in gene_positions.iter().enumerate() {
let family_repr: String;
let mut is_on_tag: bool = false;
if let Some(family_i) = gene_families.get(gene_i) {
family_repr = format!("{}", family_i);
let mut nb_intra_tag_spacers: u64 = 0;
if !tag_numbers.contains_key(gene_i) {
for (gene_j, chromosome_j, _start_j, _end_j) in &gene_positions[(i + 1)..] {
if *chromosome_i != *chromosome_j {
break;
}
if let Some(family_j) = gene_families.get(gene_j) {
if *family_i == *family_j {
nb_intra_tag_spacers = 0;
if !is_on_tag {
is_on_tag = true;
tag_index += 1;
tag_numbers.insert(gene_i.clone(), (family_repr.clone(), Some(tag_index)));
}
tag_numbers.insert(gene_j.clone(), (family_repr.clone(), Some(tag_index)));
}
} else {
nb_intra_tag_spacers += 1;
}
if nb_intra_tag_spacers > definition {
break;
}
}
if !is_on_tag {
tag_numbers.insert(gene_i.clone(), (family_repr, None));
}
}
} else {
spacer_index += 1;
family_repr = format!("spacer{}", spacer_index);
tag_numbers.insert(gene_i.clone(), (family_repr, None));
}
}
tag_numbers
}

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use std::{collections::HashMap, path::PathBuf};
use clap::Parser;
use finder::{detect_tag_of_definitions, parse_families, parse_position};
mod finder;
#[derive(Parser)]
#[command(version="0.0.1", about="Find Tandemly Arrayed Genes", long_about="Find Tandemly Arrayed Genes in a genome based on gene position and Tandemly Arrayed Genes definition (i. e. number of spacers)")]
struct Cli {
#[arg(short='f', long="families", value_name="FAMILIES FILE")]
families: PathBuf,
#[arg(short='p', long="positions", value_name="POSITIONS FILE")]
positions: PathBuf,
#[arg(short='d', long="definitions", value_name="TAGs DEFINITIONS", help="Comma seperated integers for the number of spacers to consider")]
definitions: String
}
fn main() {
let cli = Cli::parse();
let gene_families: HashMap<String, u64> = parse_families(cli.families);
let mut gene_positions: Vec<(String, String, u64, u64)> = parse_position(cli.positions);
gene_positions.sort_by(|a, b | crate::finder::compare_gene_position(a, b));
let definitions: Vec<u64> = cli.definitions.split(",").map(|x| x.parse().unwrap()).collect();
let tag_numbers = detect_tag_of_definitions(&definitions, &gene_positions, &gene_families);
// Print header
print!("gene\tfamily\t");
for (i, definition) in definitions.iter().enumerate() {
print!("tag{}", definition);
if (i + 1) < definitions.len() {
print!("\t");
}
}
print!("\n");
for (gene, (family, tags)) in tag_numbers {
print!("{}\t{}\t", gene, family);
for (i, tag) in tags.iter().enumerate() {
if let Some(tag) = tag {
print!("{}", tag);
} else {
print!("-");
}
if (i + 1) < tags.len() {
print!("\t");
}
}
print!("\n");
}
}

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A 1
B 1
C 2
D 2
1 A 1
2 B 1
3 C 2
4 D 2

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U 2 4 1
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