cli init

cli/src/main.rs

@@ -0,0 +1,8 @@
+use std::env;
+
+mod rocli;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    println!("Hello, world!");
+}

cli/src/rocli/command.rs

@@ -0,0 +1,9 @@
+pub struct Command {
+    pub name: String,
+    pub version: Option<String>,
+
+    pub action: Action,
+
+    pub subcommands: Vec<Commands>,
+    pub flags: Vec<Flag>,
+}

cli/src/rocli/mod.rs

@@ -0,0 +1,4 @@
+mod command;
+mod parse;
+
+pub use parse::normalize_args;

cli/src/rocli/parse.rs

@@ -0,0 +1,33 @@
+/// Parse the GNU convention CLI argument syntax.
+///
+/// # Examples
+/// ```rs
+/// assert!(parse(vec!["--flag=value"]) == vec!["--flag", "value"]);
+/// assert!(parse(vec!["--flag value"]) == vec!["--flag", "value"]);
+/// assert!(parse(vec!["-abe"]) == vec!["-a", "-b", "-e"]);
+/// assert!(parse(vec!["-abef=32"]) == vec!["-a", "-b", "-e", "-f", "32"]);
+/// ```
+///
+/// # Credit
+/// Based on [github:ksk001100/seahorse `src/utils.rs`](https://github.com/ksk001100/seahorse/blob/master/src/utils.rs)
+pub fn normalize_args(args: Vec<String>) -> Vec<String> {
+    args.iter().fold(Vec::<String>::new(), |mut acc, el| {
+        if !el.starts_with('-') {
+            acc.push(el.to_owned());
+            return acc;
+        }
+
+        let mut split = el.splitn(2, '=').map(|s| s.to_owned()).collect();
+        if el.starts_with("--") {
+            acc.append(&mut split);
+        } else {
+            let flags = split[0].chars().skip(1).map(|c| format!("-{c}"));
+
+            acc.append(&mut flags.collect());
+            if let Some(value) = split.get(1) {
+                acc.push(value.to_owned());
+            }
+        }
+        acc
+    })
+}