1 files changed, 28 insertions, 0 deletions
diff --git a/cmd/vartan/root.go b/cmd/vartan/root.go
new file mode 100644
index 0000000..ad163a6
--- /dev/null
+++ b/cmd/vartan/root.go
@@ -0,0 +1,28 @@
+package main
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+)
+
+var rootCmd = &cobra.Command{
+	Use:   "vartan",
+	Short: "Generate a portable parsing table from a grammar",
+	Long: `vartan provides two features:
+- Generates a portable parsing table from a grammar.
+- Tokenizes a text stream according to the grammar.
+  This feature is primarily aimed at debugging the grammar.`,
+	SilenceErrors: true,
+	SilenceUsage:  true,
+}
+
+func Execute() error {
+	err := rootCmd.Execute()
+	if err != nil {
+		fmt.Fprintf(os.Stderr, "%v\n", err)
+		return err
+	}
+	return nil
+}