MVP.

Cargo.lock

@@ -2,6 +2,7 @@
 name = "names"
 version = "0.1.0"
 dependencies = [
+ "clap 1.4.0 (git+https://github.com/kbknapp/clap-rs?rev=40104af)",
  "rand 0.3.11 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -14,6 +15,20 @@ dependencies = [
  "winapi-build 0.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "ansi_term"
+version = "0.6.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
+[[package]]
+name = "clap"
+version = "1.4.0"
+source = "git+https://github.com/kbknapp/clap-rs?rev=40104af#40104afe9d124b658569656ca643dc0a9d813216"
+dependencies = [
+ "ansi_term 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
+ "strsim 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
+]
+
 [[package]]
 name = "libc"
 version = "0.1.10"
@@ -29,6 +44,11 @@ dependencies = [
  "winapi 0.2.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "strsim"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "winapi"
 version = "0.2.4"

Cargo.toml

@@ -4,4 +4,6 @@ version = "0.1.0"
 authors = ["Fletcher Nichol <fnichol@nichol.ca>"]
 
 [dependencies]
+# pending a release which includes https://github.com/kbknapp/clap-rs/pull/257
+clap = { git = "https://github.com/kbknapp/clap-rs", rev = "40104af" }
 rand = "0.3.0"

src/main.rs

@@ -2,12 +2,40 @@ extern crate rand;
 
 use rand::Rng;
 
+#[macro_use]
+extern crate clap;
+
+use clap::{App, Arg};
+
 fn main() {
+    let matches = App::new("names")
+        .version(&crate_version!()[..])
+        .author("Fletcher Nichol <fnichol@nichol.ca>")
+        .about("Random name generator")
+        .arg(Arg::with_name("AMOUNT")
+             .help("Number of names to generate (default: 1)")
+             .index(1)
+        )
+        .arg(Arg::with_name("number")
+             .short("n")
+             .long("number")
+             .help("Adds a random number to the name(s)")
+        )
+        .get_matches();
+
+    let amount      = value_t!(matches.value_of("AMOUNT"), u32).unwrap_or(1);
     let adjectives  = Dict::new(ADJECTIVE_WORDS);
     let nouns       = Dict::new(NOUN_WORDS);
 
+    for _ in 0..amount {
+        if matches.is_present("number") {
+            let number = rand::thread_rng().gen_range(1, 10000);
+            println!("{}-{}-{:04}", adjectives.random(), nouns.random(), number);
+        } else {
             println!("{}-{}", adjectives.random(), nouns.random());
         }
+    }
+}
 
 struct Dict<'a> {
     words: &'a [&'a str],