moved some things around :3

.envrc

@@ -0,0 +1 @@
+use flake

.gitignore

@@ -1,3 +1 @@
-.ccls-cache/
+.direnv/
-*/.ccls-cache/
-*/target/

flake.lock

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+{
+  "nodes": {
+    "nixpkgs": {
+      "locked": {
+        "lastModified": 1709204812,
+        "narHash": "sha256-EjFkpUjz1iV4LZJwgd3PqyLkuyrxrJLobrpNUUumXeI=",
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "rev": "728d2d1fd999b9be599793a12bae719709129577",
+        "type": "github"
+      },
+      "original": {
+        "owner": "NixOS",
+        "repo": "nixpkgs",
+        "type": "github"
+      }
+    },
+    "root": {
+      "inputs": {
+        "nixpkgs": "nixpkgs"
+      }
+    }
+  },
+  "root": "root",
+  "version": 7
+}

flake.nix

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+{
+    description = "compilers and interpreters for jpp";
+
+    inputs = {
+        nixpkgs.url = "github:NixOS/nixpkgs";
+    };
+
+    outputs = {
+        nixpkgs,
+        ...
+    }: let 
+        systems = [ "x86_64-linux" "aarch64-linux" ];
+        forEachSystem = nixpkgs.lib.genAttrs systems;
+        pkgsForEach = nixpkgs.legacyPackages;
+    in {
+        devShells = forEachSystem (system: 
+            let 
+                pkgs = pkgsForEach.${system};
+            in {
+                default = pkgs.mkShell {
+                    name = "jpp";
+
+                    nativeBuildInputs = with pkgs; [
+                        gcc
+                        clang
+                        gnat
+                        alire
+                        gprbuild
+                        jdk
+                        go
+                        ghc
+                        clisp
+                        smlnj
+                        swiProlog
+                    ];
+                };
+            }
+        );
+    };
+}

lab0/HelloWorld.hs

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+module Main where
+
+main :: IO ()
+main = putStrLn "Hello, World!"

lab0/HelloWorld.java

@@ -0,0 +1,5 @@
+public class HelloWorld {
+    public static void main(String[] args) {
+        System.out.println("Hello, World!");
+    }
+}

lab0/hello-world.go

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+package main
+
+import "fmt"
+
+func main() {
+    fmt.Println("Hello, World!")
+}

lab0/hello_world.adb

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+with Ada.Text_IO;
+
+procedure Hello_World is
+begin
+    Ada.Text_IO.Put_Line ("Hello, World!");
+end Hello_World;

lab0/helloworld.c

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+#include <stdio.h>
+
+int main(void) {
+    printf("Hello, World!\n");
+    return 0;
+}

lab0/helloworld.cpp

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+#include <iostream>
+
+int main() {
+    std::cout << "Hello, World!\n";
+    return 0;
+}

lab0/helloworld.lisp

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+(defun helloworld ()
+  (format t "Hello, World!~%"))
+
+(helloworld)

lab0/helloworld.pl

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+main :-
+    write("Hello, World!").
+
+:- main.
+
+% vi: ft=prolog

lab0/helloworld.sml

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+print "Hello, World!\n";

lab1/.gitignore

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+.ccls-cache/
+*/.ccls-cache/
+*/target/