7 files changed, 50 insertions, 27 deletions
diff --git a/cmd/ucdgen/main.go b/cmd/ucdgen/main.go
index 6d7d33e..aeb88e2 100644
--- a/cmd/ucdgen/main.go
+++ b/cmd/ucdgen/main.go
@@ -7,7 +7,7 @@ import (
 	"strings"
 	"text/template"
 
-	"github.com/nihei9/vartan/ucd"
+	"ucd"
 )
 
 func main() {
diff --git a/cmd/vartan-go/generate.go b/cmd/vartan-go/generate.go
index 7d95ed7..7d84da9 100644
--- a/cmd/vartan-go/generate.go
+++ b/cmd/vartan-go/generate.go
@@ -2,24 +2,25 @@ package main
 
 import (
 	"encoding/json"
-	"fmt"
+	// "fmt"
 	"io"
 	"os"
 
-	"github.com/nihei9/vartan/driver/lexer"
-	"github.com/nihei9/vartan/driver/parser"
-	spec "github.com/nihei9/vartan/spec/grammar"
-	"github.com/spf13/cobra"
+	// "driver/lexer"
+	// "driver/parser"
+	spec "spec/grammar"
 )
 
 func Execute() error {
-	return generateCmd.Execute()
+	// return generateCmd.Execute()
+	return nil
 }
 
 var generateFlags = struct {
 	pkgName *string
 }{}
 
+/*
 var generateCmd = &cobra.Command{
 	Use:           "vartan-go",
 	Short:         "Generate a parser for Go",
@@ -103,6 +104,7 @@ func runGenerate(cmd *cobra.Command, args []string) error {
 
 	return nil
 }
+*/
 
 func readCompiledGrammar(path string) (*spec.CompiledGrammar, error) {
 	f, err := os.Open(path)
diff --git a/cmd/vartan/compile.go b/cmd/vartan/compile.go
index e645366..0755456 100644
--- a/cmd/vartan/compile.go
+++ b/cmd/vartan/compile.go
@@ -7,17 +7,17 @@ import (
 	"os"
 	"path/filepath"
 
-	verr "github.com/nihei9/vartan/error"
-	"github.com/nihei9/vartan/grammar"
-	spec "github.com/nihei9/vartan/spec/grammar"
-	"github.com/nihei9/vartan/spec/grammar/parser"
-	"github.com/spf13/cobra"
+	verr "error"
+	"grammar"
+	spec "spec/grammar"
+	"spec/grammar/parser"
 )
 
 var compileFlags = struct {
 	output *string
 }{}
 
+/*
 func init() {
 	cmd := &cobra.Command{
 		Use:     "compile",
@@ -29,8 +29,9 @@ func init() {
 	compileFlags.output = cmd.Flags().StringP("output", "o", "", "output file path (default stdout)")
 	rootCmd.AddCommand(cmd)
 }
+*/
 
-func runCompile(cmd *cobra.Command, args []string) (retErr error) {
+func runCompile(args []string) (retErr error) {
 	var tmpDirPath string
 	defer func() {
 		if tmpDirPath == "" {
diff --git a/cmd/vartan/parse.go b/cmd/vartan/parse.go
index 8b3e34e..50d867e 100644
--- a/cmd/vartan/parse.go
+++ b/cmd/vartan/parse.go
@@ -7,10 +7,9 @@ import (
 	"os"
 	"strings"
 
-	driver "github.com/nihei9/vartan/driver/parser"
-	spec "github.com/nihei9/vartan/spec/grammar"
-	"github.com/nihei9/vartan/tester"
-	"github.com/spf13/cobra"
+	driver "driver/parser"
+	spec "spec/grammar"
+	"tester"
 )
 
 var parseFlags = struct {
@@ -27,6 +26,7 @@ const (
 	outputFormatJSON = "json"
 )
 
+/*
 func init() {
 	cmd := &cobra.Command{
 		Use:     "parse <grammar file path>",
@@ -42,8 +42,9 @@ func init() {
 	parseFlags.format = cmd.Flags().StringP("format", "f", "text", "output format: one of text|tree|json")
 	rootCmd.AddCommand(cmd)
 }
+*/
 
-func runParse(cmd *cobra.Command, args []string) error {
+func runParse(args []string) error {
 	if *parseFlags.onlyParse && *parseFlags.cst {
 		return fmt.Errorf("You cannot enable --only-parse and --cst at the same time")
 	}
diff --git a/cmd/vartan/root.go b/cmd/vartan/root.go
index 8d2219d..32eb3c3 100644
--- a/cmd/vartan/root.go
+++ b/cmd/vartan/root.go
@@ -1,9 +1,10 @@
 package main
 
 import (
-	"github.com/spf13/cobra"
+	"os"
 )
 
+/*
 var rootCmd = &cobra.Command{
 	Use:   "vartan",
 	Short: "Generate a portable LALR(1) parsing table from grammar you defined",
@@ -13,7 +14,23 @@ var rootCmd = &cobra.Command{
 	SilenceErrors: true,
 	SilenceUsage:  true,
 }
+*/
 
 func Execute() error {
-	return rootCmd.Execute()
+	// return rootCmd.Execute()
+
+	cmd := os.Args[1]
+	args := os.Args[2:]
+
+	if cmd == "compile" {
+		return runCompile(args)
+	} else if cmd == "parse" {
+		return runParse(args)
+	} else if cmd == "show" {
+		return runShow(args)
+	} else if cmd == "test" {
+		return runTest(args)
+	}
+
+	return nil // FIXME
 }
diff --git a/cmd/vartan/show.go b/cmd/vartan/show.go
index c142623..c56be1f 100644
--- a/cmd/vartan/show.go
+++ b/cmd/vartan/show.go
@@ -8,11 +8,11 @@ import (
 	"strings"
 	"text/template"
 
-	"github.com/nihei9/vartan/grammar"
-	spec "github.com/nihei9/vartan/spec/grammar"
-	"github.com/spf13/cobra"
+	"grammar"
+	spec "spec/grammar"
 )
 
+/*
 func init() {
 	cmd := &cobra.Command{
 		Use:     "show",
@@ -23,8 +23,9 @@ func init() {
 	}
 	rootCmd.AddCommand(cmd)
 }
+*/
 
-func runShow(cmd *cobra.Command, args []string) error {
+func runShow(args []string) error {
 	report, err := readReport(args[0])
 	if err != nil {
 		return err
diff --git a/cmd/vartan/test.go b/cmd/vartan/test.go
index 9bd88ff..73949e0 100644
--- a/cmd/vartan/test.go
+++ b/cmd/vartan/test.go
@@ -5,10 +5,10 @@ import (
 	"fmt"
 	"os"
 
-	"github.com/nihei9/vartan/tester"
-	"github.com/spf13/cobra"
+	"tester"
 )
 
+/*
 func init() {
 	cmd := &cobra.Command{
 		Use:     "test <grammar file path> <test file path>|<test directory path>",
@@ -19,8 +19,9 @@ func init() {
 	}
 	rootCmd.AddCommand(cmd)
 }
+*/
 
-func runTest(cmd *cobra.Command, args []string) error {
+func runTest(args []string) error {
 	gram, _, err := readGrammar(args[0])
 	if err != nil {
 		return fmt.Errorf("Cannot read a grammar: %w", err)