minigrep

Author: Vikk-17

minigrep/Cargo.lock

@@ -0,0 +1,6 @@
+[package]
+name = "minigrep"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]

minigrep/Cargo.toml

@@ -0,0 +1,9 @@
+I'm nobody! Who are you?
+Are you nobody, too?
+Then there's a pair of us - don't tell!
+They'd banish us, you know.
+
+How dreary to be somebody!
+How public, like a frog
+To tell your name the livelong day
+To an admiring bog!

minigrep/poem.txt

@@ -0,0 +1,3 @@
+pub fn search<'a>(query: &str, contains: &'a str) -> Vec<&'a str> {
+    unimplemented!()
+}

minigrep/src/lib.rs

@@ -0,0 +1,49 @@
+use std::{ 
+    env,
+    fs,
+    process,
+    error::Error,
+};
+use minigrep::search;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    let config = Config::build(&args).unwrap_or_else(|err| {
+        println!("Problem parsing arguments: {err}");
+        process::exit(1);
+    });
+    println!("Searching for {}", config.query);
+    println!("In file {}", config.file_path);
+    // read the file
+    if let Err(e) = run(config) {
+        println!("Application error {e}");
+        process::exit(1);
+    }
+}
+
+struct Config {
+    query: String,
+    file_path: String,
+}
+
+impl Config {
+    fn build(args: &[String]) -> Result<Config, &'static str> {
+        if args.len() < 3 {
+            return Err("Not enough arguments");
+        }
+        let query = args[1].clone();
+        let file_path = args[2].clone();
+
+        Ok(Config {query, file_path})
+    }
+}
+
+fn run(config: Config) -> Result<(), Box<dyn Error>> {
+    let contents: String = fs::read_to_string(config.file_path)?;
+
+    // println!("With text:\n{contents}");
+    for line in search(&config.query, &contents) {
+        println!("{line}");
+    } 
+    Ok(())
+}