v0.1.0: some args handling

Cargo.lock

@@ -0,0 +1,4 @@
+[[package]]
+name = "grep"
+version = "0.1.0"
+

README.md

@@ -31,4 +31,10 @@ History
 
 ```bash
 cargo init --bin --name grep
+cargo run
+
+git clone --depth=1 https://github.com/rust-lang/rust.vim.git ~/.vim/bundle/rust.vim
+git clone --depth=1 https://github.com/majutsushi/tagbar.git ~/.vim/bundle/tagbar
+echo 'let g:tagbar_ctags_bin = "/Users/aj/github.com/universal-ctags/ctags/ctags"' >> ~/.vimrc
+echo 'let g:rustfmt_autosave = 1' >> ~/.vimrc
 ```

poem.txt

@@ -0,0 +1,9 @@
+I'm nobody! Who are you?
+Are you nobody, too?
+Then there's a pair of us - don't tell!
+Theyd' 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!

src/lib.rs

@@ -0,0 +1,3 @@
+pub fn run() {
+    println!("hello")
+}

src/main.rs

@@ -1,3 +1,38 @@
+extern crate grep;
+
+use std::env;
+use std::fs::File;
+use std::io::prelude::*;
+
+struct Config {
+    query: String,
+    filename: String,
+}
+
 fn main() {
-    println!("Hello, world!");
+    let args: Vec<String> = env::args().collect();
+
+    let conf = parse_config(&args);
+
+    println!("{:?} {:?}", conf.query, conf.filename);
+
+    let mut f = File::open(&conf.filename).expect(&("file not found: ".to_owned() + &conf.filename));
+    //let mut f = File::open(filename).expect(&format!("file not found: {}", &filename));
+
+    let mut contents = String::new();
+    f.read_to_string(&mut contents)
+        .expect("something went wrong reading the file");
+
+    println!("Searching for '{}'", conf.query);
+    println!("In file '{}'", conf.filename);
+    println!("With text:\n{}", contents);
+}
+
+//fn parse_config(args: &[String]) -> (&String, &String)
+//fn parse_config(args: &[String]) -> (&str, &str)
+fn parse_config(args: &[String]) -> Config {
+    Config {
+        query: args[1].clone(),
+        filename: args[2].clone(),
+    }
 }