Add the CLI options basic args

Add the ordering for the help menu

Define the CLI options of clap

2 files changed, 73 insertions, 1 deletions

diff --git a/CLI/rust/src/game_of_life.rs b/CLI/rust/src/game_of_life.rs
new file mode 100644
index 0000000..fffaa42
--- /dev/null
+++ b/CLI/rust/src/game_of_life.rs
@@ -0,0 +1,69 @@
+use clap::{crate_authors, crate_version, App, Arg, ArgMatches, Error};
+
+/// Define the Clap CLI for running Game of Life simulation
+///
+/// Using Clap to define the available options that can be used with game of life
+pub(crate) fn options() -> Result<ArgMatches, Error> {
+    let matches = App::new("Game of Life")
+        .author(crate_authors!())
+        .version(crate_version!())
+        .arg(
+            Arg::new("seed")
+                .about("Specify the seed number to use as an initial state [default: random]")
+                .takes_value(true)
+                .long("seed")
+                .short('s')
+                .conflicts_with("input")
+                .display_order(0)
+        )
+        .arg(
+            Arg::new("input")
+                .about("Specify the path/URL for the file to use as an initial state. (used instead of seed)")
+                .takes_value(true)
+                .long("input")
+                .short('i')
+                .display_order(1)
+        )
+        .arg(
+            Arg::new("width")
+                .about("Specify the width of generated universe. [default: terminal width]")
+                .takes_value(true)
+                .long("width")
+                .display_order(2)
+        )
+        .arg(
+            Arg::new("height")
+                .about("Specify the width of generated universe. [default: terminal height]")
+                .takes_value(true)
+                .long("height")
+                .display_order(3)
+        )
+        .arg(
+            Arg::new("live-cell")
+                .about("Specify the live-cell representation")
+                .takes_value(true)
+                .long("live-cell")
+                .default_value("█")
+                .display_order(4)
+        )
+        .arg(
+            Arg::new("dead-cell")
+                .about("Specify the dead-cell representation")
+                .takes_value(true)
+                .long("dead-cell")
+                .default_value(" ")
+                .display_order(5)
+        )
+        .arg(
+            Arg::new("delay")
+                .about("Specify the introduced delay between each generation")
+                .takes_value(true)
+                .short('d')
+                .long("delay")
+                .default_value("50")
+                .display_order(6)
+        )
+        .get_matches();
+
+    Ok(matches)
+}
diff --git a/CLI/rust/src/main.rs b/CLI/rust/src/main.rs
index e7a11a9..71f81e5 100644
--- a/CLI/rust/src/main.rs
+++ b/CLI/rust/src/main.rs
@@ -1,3 +1,6 @@
+mod game_of_life;
+
 fn main() {
-    println!("Hello, world!");
+    let matches = game_of_life::options().unwrap_or_else(|e| e.exit());
+    println!("{:?}", matches);
 }