initial commit

2 files changed, 39 insertions, 0 deletions

diff --git a/src/lib.rs b/src/lib.rs
new file mode 100644
index 0000000..c01823d
--- /dev/null
+++ b/src/lib.rs
@@ -0,0 +1,6 @@
+pub fn search<'a>(pattern: &str, contents: &'a str) -> Vec<&'a str> {
+    contents
+        .lines()
+        .filter(|line| line.contains(pattern))
+        .collect()
+}
diff --git a/src/main.rs b/src/main.rs
new file mode 100644
index 0000000..76b2543
--- /dev/null
+++ b/src/main.rs
@@ -0,0 +1,33 @@
+use std::error::Error;
+use std::process;
+use std::fs;
+
+use clap::Parser;
+
+#[derive(Parser)]
+#[command(author, version, about, long_about = None)] // Read from `Cargo.toml`
+struct Config {
+    /// The pattern to look for
+    pattern: String,
+    /// The path to the file to read
+    file: String,
+}
+
+fn main() {
+    let config = Config::parse();
+
+    if let Err(e) = run(config) {
+        eprintln!("Error: {e}");
+        process::exit(1);
+    }
+}
+
+fn run(config: Config) -> Result<(), Box<dyn Error>> {
+    let contents = fs::read_to_string(config.file)?;
+
+    for line in trgrep::search(&config.pattern, &contents) {
+        println!("{line}");
+    }
+
+    Ok(())
+}