New language: LiveScript

backend/src/langs.ts

@@ -642,6 +642,16 @@ PLEASE GIVE UP
     template: `body:before {
   content: "Hello, world!";
 }
+`,
+  },
+  livescript: {
+    aliases: ["lsc", "ls"],
+    name: "LiveScript",
+    monacoLang: "plaintext",
+    repl: "lsc",
+    main: "main.ls",
+    run: "lsc -r ./main.ls; lsc",
+    template: `console.log "Hello, world!"
 `,
   },
   llvm: {

scripts/docker-install-phase4.bash

@@ -55,6 +55,9 @@ julia -e 'using Pkg; Pkg.add("LanguageServer")'
 # Less
 npm install -g less
 
+# LiveScript
+npm install -g livescript
+
 # Perl
 cpanm -n Devel::REPL