added rust files

src/cliargs/mod.rs

@@ -0,0 +1,43 @@
+pub(crate) fn help()
+{{
+    println!("Moddah is a managing tool for Minecraft modded clients and servers.
+The supported toolchains are FabricMC, ForgeModLoader, QuiltMC.
+
+Usage:
+    moddah
+    moddah <operation> [...]
+
+Operations:
+    moddah {{-h --help}}                  print this help message
+    moddah {{-v --version}}               print the version of Moddah
+    moddah {{-l --list}}          [...]   list versions
+    moddah {{-i --install}}       [...]   install a Modloader
+
+Options:
+    moddah {{-l --list}} [...]
+        - minecraft                     list all minecraft versions
+        - fabric                        list all minecraft versions supported by the FabricMC toolchain
+        - forge                         list all minecraft versions supported by the ForgeModLoader toolchain
+        - quilt                         list all minecraft versions supported by the QuiltMC toolchain
+
+    moddah {{-i --install}} [modloader] [minecraft-version] [environment] [loader-version] [directory]
+        [modloader]:
+            - fabric
+            - forge
+            - quilt
+        
+        [minecraft-version]:
+            - [any version that is supported by the modloader of choice]
+        
+        [environment]:
+            - client
+            - server
+        
+        [loader-version]:
+            - [any version of the loader of choice]
+        
+        [directory]:
+            - [leave blank for current directory]
+            - [directory of choice]
+    ")
+}}

src/main.rs

@@ -0,0 +1,22 @@
+use std::env;
+
+mod cliargs;
+
+fn main() {
+    let args: Vec<String> = env::args().collect();
+    for i in args.iter()
+    {
+        match i.as_str()
+        {
+            "--help" => cliargs::help(),
+            _ => {
+                if !args.iter().position(|r| r.as_str() == i).unwrap().parse() == 0
+                {
+                    println!("Error")
+                } else {
+                    println!("{}", args.iter().position(|r| r.as_str() == i).unwrap());
+                }
+            },
+        }
+    }
+}