simeji · simeji · Dec 4, 2016 · Dec 4, 2016
diff --git a/README.md b/README.md
@@ -4,6 +4,8 @@ Json Incremental Digger
 It's very simple tool.  
 You can drill down interactively by using filtering queries like [jq](https://stedolan.github.io/jq/).
 
+**Suggestion** and **Auto completion** of this tool will provide you very comfotable JSON drill down.
+
 ## Demo
 
 ![demo-jid-main](https://github.com/simeji/jid/wiki/images/demo-jid-main-640.gif)
@@ -44,6 +46,7 @@ go get github.com/stretchr/testify/assert
 
 * [simple json example](#simple-json-example)  
 * [simple json example2](#simple-json-example2)  
+* [with initial query](#with-initial-query)  
 * [with curl](#with-curl)  
 
 #### simple json example
@@ -77,6 +80,13 @@ This json is used by [demo section](https://github.com/simeji/jid#demo).
 echo '{"info":{"date":"2016-10-23","version":1.0},"users":[{"name":"simeji","uri":"https://github.com/simeji","id":1},{"name":"simeji2","uri":"https://example.com/simeji","id":2},{"name":"simeji3","uri":"https://example.com/simeji3","id":3}],"userCount":3}}'|jid
 ```
 
+#### With initial query
+
+First argument of `jid` is initial query.
+(Use JSON same as [Demo](#demo))
+
+![demo-jid-with-query](https://github.com/simeji/jid/wiki/images/demo-jid-with-query-640.gif)
+
 #### with curl
 
 Sample for using [RDAP](https://datatracker.ietf.org/wg/weirds/documents/) data.
@@ -101,4 +111,6 @@ curl -s http://rdg.afilias.info/rdap/domain/example.info | jid
 
 ### Option
 
+First argument: Initial query
+
 -q : Print query (for jq)
diff --git a/cmd/jid/jid.go b/cmd/jid/jid.go
@@ -11,27 +11,33 @@ import (
 func main() {
 	content := os.Stdin
 
-	var query bool
+	var qm bool
+	qs := "."
 
-	flag.BoolVar(&query, "q", false, "output query")
+	flag.BoolVar(&qm, "q", false, "Output query mode")
 	flag.Parse()
 
-	e, err := jid.NewEngine(content)
+	args := flag.Args()
+	if len(args) > 0 {
+		qs = args[0]
+	}
+
+	e, err := jid.NewEngine(content, qs)
 
 	if err != nil {
 		fmt.Println(err)
 		os.Exit(1)
 	}
-	os.Exit(run(e, query))
+	os.Exit(run(e, qm))
 }
 
-func run(e jid.EngineInterface, query bool) int {
+func run(e jid.EngineInterface, qm bool) int {
 
 	result := e.Run()
 	if result.GetError() != nil {
 		return 2
 	}
-	if query {
+	if qm {
 		fmt.Printf("%s", result.GetQueryString())
 	} else {
 		fmt.Printf("%s", result.GetContent())

diff --git a/cmd/jid/jid_test.go b/cmd/jid/jid_test.go
@@ -2,10 +2,11 @@ package main
 
 import (
 	"fmt"
-	"github.com/simeji/jid"
-	"github.com/stretchr/testify/assert"
 	"os"
 	"testing"
+
+	"github.com/simeji/jid"
+	"github.com/stretchr/testify/assert"
 )
 
 var called int = 0
@@ -16,7 +17,7 @@ func TestMain(m *testing.M) {
 	defer os.Exit(code)
 }
 
-func TestjidRun(t *testing.T) {
+func TestJidRun(t *testing.T) {
 	var assert = assert.New(t)
 
 	e := &EngineMock{err: nil}
@@ -31,7 +32,7 @@ func TestjidRun(t *testing.T) {
 	assert.Zero(result)
 }
 
-func TestjidRunWithError(t *testing.T) {
+func TestJidRunWithError(t *testing.T) {
 	called = 0
 	var assert = assert.New(t)
 	e := &EngineMock{err: fmt.Errorf("")}

diff --git a/engine.go b/engine.go
@@ -37,15 +37,15 @@ type Engine struct {
 	cursorOffsetX int
 }
 
-func NewEngine(s io.Reader) (EngineInterface, error) {
+func NewEngine(s io.Reader, qs string) (EngineInterface, error) {
 	j, err := NewJsonManager(s)
 	if err != nil {
 		return nil, err
 	}
 	e := &Engine{
 		manager:       j,
 		term:          NewTerminal(FilterPrompt, DefaultY),
-		query:         NewQuery([]rune("")),
+		query:         NewQuery([]rune(qs)),
 		complete:      []string{"", ""},
 		keymode:       false,
 		candidates:    []string{},
@@ -55,6 +55,7 @@ func NewEngine(s io.Reader) (EngineInterface, error) {
 		queryConfirm:  false,
 		cursorOffsetX: 0,
 	}
+	e.cursorOffsetX = len(e.query.Get())
 	return e, nil
 }
 

diff --git a/engine_test.go b/engine_test.go
@@ -12,17 +12,34 @@ func TestNewEngine(t *testing.T) {
 	var assert = assert.New(t)
 
 	f, _ := os.Create("/dev/null")
-	e, err := NewEngine(f)
+	e, err := NewEngine(f, "")
 	assert.Nil(e)
 	assert.NotNil(err)
 
-	ee := getEngine(`{"name":"go"}`)
+	ee := getEngine(`{"name":"go"}`, "")
 	assert.NotNil(ee)
+	assert.Equal("", ee.query.StringGet())
+	assert.Equal(0, ee.cursorOffsetX)
+}
+
+func TestNewEngineWithQuery(t *testing.T) {
+	var assert = assert.New(t)
+	e := getEngine(`{"name":"go"}`, ".nam")
+	assert.Equal(".nam", e.query.StringGet())
+	assert.Equal(4, e.cursorOffsetX)
+
+	e = getEngine(`{"name":"go"}`, "nam")
+	assert.Equal("", e.query.StringGet())
+	assert.Equal(0, e.cursorOffsetX)
+
+	e = getEngine(`{"name":"go"}`, ".nam..")
+	assert.Equal("", e.query.StringGet())
+	assert.Equal(0, e.cursorOffsetX)
 }
 
 func TestDeleteChar(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"go"}`)
+	e := getEngine(`{"name":"go"}`, "")
 	e.query.StringSet(".name")
 	e.cursorOffsetX = 5
 
@@ -33,7 +50,7 @@ func TestDeleteChar(t *testing.T) {
 
 func TestDeleteWordBackward(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"go"}`)
+	e := getEngine(`{"name":"go"}`, "")
 	e.query.StringSet(".name")
 
 	e.deleteWordBackward()
@@ -53,7 +70,7 @@ func TestDeleteWordBackward(t *testing.T) {
 
 func TestScrollToAbove(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"named":"go","NameTest":[1,2,3]}`)
+	e := getEngine(`{"named":"go","NameTest":[1,2,3]}`, "")
 	assert.Equal(0, e.contentOffset)
 	e.scrollToAbove()
 	assert.Equal(0, e.contentOffset)
@@ -66,7 +83,7 @@ func TestScrollToAbove(t *testing.T) {
 
 func TestScrollToBelow(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"named":"go","NameTest":[1,2,3]}`)
+	e := getEngine(`{"named":"go","NameTest":[1,2,3]}`, "")
 	e.scrollToBelow()
 	assert.Equal(1, e.contentOffset)
 	e.scrollToBelow()
@@ -77,13 +94,13 @@ func TestScrollToBelow(t *testing.T) {
 func TestGetContents(t *testing.T) {
 	var assert = assert.New(t)
 
-	e := getEngine(`{"name":"go"}`)
+	e := getEngine(`{"name":"go"}`, "")
 	c := e.getContents()
 	assert.Equal([]string{`{`, `  "name": "go"`, "}"}, c)
 	assert.Equal([]string{}, e.candidates)
 	assert.Equal([]string{"", ""}, e.complete)
 
-	e = getEngine(`{"name":"go", "naming":"simeji", "foo":"bar"}`)
+	e = getEngine(`{"name":"go", "naming":"simeji", "foo":"bar"}`, "")
 	e.query.StringSet(".n")
 	c = e.getContents()
 	assert.Equal([]string{`{`, `  "foo": "bar",`, `  "name": "go",`, `  "naming": "simeji"`, "}"}, c)
@@ -99,7 +116,7 @@ func TestGetContents(t *testing.T) {
 
 func TestSetCandidateData(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"go"}`)
+	e := getEngine(`{"name":"go"}`, "")
 
 	// case 1
 	e.candidates = []string{"test", "testing"}
@@ -160,7 +177,7 @@ func TestSetCandidateData(t *testing.T) {
 
 func TestConfirmCandidate(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"go","NameTest":[1,2,3]}`)
+	e := getEngine(`{"name":"go","NameTest":[1,2,3]}`, "")
 	e.query.StringSet(".")
 	e.queryConfirm = false
 	e.candidates = []string{"test", "testing", "foo"}
@@ -178,7 +195,7 @@ func TestConfirmCandidate(t *testing.T) {
 	assert.True(e.queryConfirm)
 	assert.Equal(4, e.cursorOffsetX)
 
-	e = getEngine(`{"name":"go"}`)
+	e = getEngine(`{"name":"go"}`, "")
 	e.query.StringSet(".name.hoge")
 	e.candidates = []string{"aaa", "bbb", "ccc"}
 	e.candidateidx = 1
@@ -191,7 +208,7 @@ func TestConfirmCandidate(t *testing.T) {
 
 func TestCtrllAction(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"go","NameTest":[1,2,3]}`)
+	e := getEngine(`{"name":"go","NameTest":[1,2,3]}`, "")
 	assert.False(e.keymode)
 	e.toggleKeymode()
 	assert.True(e.keymode)
@@ -201,7 +218,7 @@ func TestCtrllAction(t *testing.T) {
 
 func TestTabAction(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"go","NameTest":[1,2,3]}`)
+	e := getEngine(`{"name":"go","NameTest":[1,2,3]}`, "")
 	e.query.StringSet(".namet")
 	e.complete = []string{"est", "NameTest"}
 
@@ -222,7 +239,7 @@ func TestTabAction(t *testing.T) {
 
 func TestEscAction(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"go","NameTest":[1,2,3]}`)
+	e := getEngine(`{"name":"go","NameTest":[1,2,3]}`, "")
 	assert.False(e.candidatemode)
 	e.escapeCandidateMode()
 	assert.False(e.candidatemode)
@@ -233,7 +250,7 @@ func TestEscAction(t *testing.T) {
 
 func TestInputChar(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"go"}`)
+	e := getEngine(`{"name":"go"}`, "")
 	e.query.StringSet(".name")
 	e.cursorOffsetX = len(e.query.Get())
 	assert.Equal(5, e.cursorOffsetX)
@@ -249,7 +266,7 @@ func TestInputChar(t *testing.T) {
 
 func TestMoveCursorForwardAndBackward(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"simeji"}`)
+	e := getEngine(`{"name":"simeji"}`, "")
 	e.query.StringSet(".ne")
 
 	e.cursorOffsetX = 0
@@ -274,7 +291,7 @@ func TestMoveCursorForwardAndBackward(t *testing.T) {
 
 func TestMoveCursorToTopAndEnd(t *testing.T) {
 	var assert = assert.New(t)
-	e := getEngine(`{"name":"simeji"}`)
+	e := getEngine(`{"name":"simeji"}`, "")
 	e.query.StringSet(".ne")
 
 	e.cursorOffsetX = 2
@@ -285,9 +302,9 @@ func TestMoveCursorToTopAndEnd(t *testing.T) {
 	assert.Equal(3, e.cursorOffsetX)
 }
 
-func getEngine(j string) *Engine {
+func getEngine(j string, qs string) *Engine {
 	r := bytes.NewBufferString(j)
-	e, _ := NewEngine(r)
+	e, _ := NewEngine(r, qs)
 	ee := e.(*Engine)
 	return ee
 }