init commit

Author: namvdo

.gitignore

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+/target

Cargo.lock

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+[package]
+name = "rust-coding-challenges"
+version = "0.1.0"
+edition = "2021"
+
+[workspace]
+members = [ "challenges/simple-parser" ]
+
+[dependencies]

Cargo.toml

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+[package]
+name = "simple-parser"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+rust-coding-challenges = { path = "../../" }
+

challenges/simple-parser/Cargo.toml

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+use std::collections::{BTreeMap, BTreeSet, HashSet};
+use std::fs;
+use std::io;
+
+pub fn read_file(file_path: &str) -> io::Result<String> {
+    fs::read_to_string(file_path)
+}
+
+pub fn get_lines_lower_case(text: &str) -> Vec<String> {
+    text.to_lowercase().lines().map(|line| line.to_string()).collect()
+}
+
+
+pub fn solve(content: &str) -> BTreeMap<String, BTreeSet<usize>> {
+    let mut word_map: BTreeMap<String, BTreeSet<usize>> = BTreeMap::new();
+    let lines = get_lines_lower_case(content);
+
+    for(line_number, line) in lines.iter().enumerate() {
+        let words: HashSet<&str> = line.split_whitespace().collect();
+        for word in words {
+            let word = word.to_string();
+            word_map.entry(word).or_insert_with(BTreeSet::new).insert(line_number + 1);
+        }
+    }
+
+    word_map
+}

challenges/simple-parser/src/lib.rs

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+use std::io;
+use simple_parser::solve;
+use rust_coding_challenges::utils::read_text_file_from_args;
+fn main() -> io::Result<()> {
+    let content = read_text_file_from_args()?;
+    let word_map = solve(&content);
+
+    for (word, lines) in word_map {
+        println!("Word: '{}', Lines: {:?}", word, lines);
+    }
+    Ok(())
+}

challenges/simple-parser/src/main.rs

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+#!/bin/bash
+
+# Create the challenge folder structure
+CHALLENGE_NAME=$1
+if [ -z "$CHALLENGE_NAME" ]; then
+    echo "Please provide the challenge name."
+    exit 1
+fi
+
+# Create a new Cargo project for the challenge
+cargo new "challenges/$CHALLENGE_NAME"
+
+# Create the tests folder
+mkdir "challenges/$CHALLENGE_NAME/tests"
+
+# Create a test file in the tests folder
+touch "challenges/$CHALLENGE_NAME/tests/test_${CHALLENGE_NAME}.rs"
+
+echo "Challenge structure created for $CHALLENGE_NAME."

challenges/simple-parser/tests/test_simple-parser.rs

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+pub mod utils;

scripts/create_challenge.sh

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+
+fn main() {
+    println!("Hello, world!");
+}

src/lib.rs

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+use std::env;
+use std::fs;
+use std::io;
+
+pub fn read_text_file_from_args() -> io::Result<String> {
+    let args: Vec<String> = env::args().collect();
+    if args.len() < 2 {
+        return Err(io::Error::new(io::ErrorKind::InvalidInput, "Usage: <file_path>"));
+    }
+    let file_path = &args[1];
+    fs::read_to_string(file_path)
+}