feat: highlight Env KEY=VALUE

---------

Co-authored-by: Maas Lalani <[email protected]>

README.md

@@ -744,14 +744,13 @@ Paste
 `Env` command sets the environment variable via key-value pair.
 
 ```elixir
-Env HELLO WORLD
+Env HELLO "WORLD"
 
 Type "echo $HELLO"
 Enter
-Sleep 3s
+Sleep 1s
 ```
 
-
 ### Source
 
 The `source` command allows you to execute commands from another tape.

evaluator.go

@@ -29,7 +29,7 @@ func Evaluate(ctx context.Context, tape string, out io.Writer, opts ...Evaluator
 
 	v := New()
 	for _, cmd := range cmds {
-		if cmd.Type == token.SET && cmd.Options == "Shell" {
+		if cmd.Type == token.SET && cmd.Options == "Shell" || cmd.Type == token.ENV {
 			Execute(cmd, &v)
 		}
 		if cmd.Type == token.ENV {

examples/env/env.tape

@@ -0,0 +1,11 @@
+Output examples/env/env.gif
+
+Set Width 500
+Set Height 250
+
+Env HELLO "WORLD"
+
+Type "echo $HELLO"
+Sleep 500ms
+Enter
+Sleep 1s

syntax.go

@@ -35,6 +35,9 @@ func Highlight(c parser.Command, faint bool) string {
 		} else {
 			argsStyle = StringStyle
 		}
+	case token.ENV:
+		optionsStyle = NoneStyle
+		argsStyle = StringStyle
 	case token.OUTPUT:
 		optionsStyle = NoneStyle
 		argsStyle = StringStyle
@@ -52,7 +55,13 @@ func Highlight(c parser.Command, faint bool) string {
 	var s strings.Builder
 	s.WriteString(CommandStyle.Render(c.Type.String()) + " ")
 	if c.Options != "" {
-		s.WriteString(optionsStyle.Render(c.Options) + " ")
+		s.WriteString(optionsStyle.Render(c.Options))
+		switch c.Type {
+		case token.ENV:
+			s.WriteString("=")
+		default:
+			s.WriteString(" ")
+		}
 	}
 	s.WriteString(argsStyle.Render(c.Args))
 	return s.String()