split by tab (better for cut)

README.md

@@ -2,13 +2,13 @@
 
 Flatten your JSON.
 
-`fj` flattens JSON into a value and its full path per line, so data can be worked on using UNIX tools such as grep/awk/etc.
+`fj` flattens JSON into a value and its full path per line, so data can be worked on using UNIX tools such as grep/awk/cut/etc.
 
 <pre>
 ❯ curl -s "https://api.github.com/repos/golang/go/commits?per_page=1" | <b>fj</b> | grep commit.author
-json[0].commit.author.name = "Josh Bleecher Snyder"
-json[0].commit.author.email = "josharian@gmail.com"
-json[0].commit.author.date = "2021-06-30T16:44:30Z"
+json[0].commit.author.name  "Josh Bleecher Snyder"
+json[0].commit.author.email "josharian@gmail.com"
+json[0].commit.author.date  "2021-06-30T16:44:30Z"
 </pre>
 
 fj can un-flatten too, which is useful to get a subset of JSON:

flatten.go

@@ -16,7 +16,7 @@ var (
 	bNull   = []byte("null\n")
 	bDot    = []byte{'.'}
 	bPrefix = []byte("json")
-	bSep    = []byte(" = ")
+	bSep    = []byte{'\t'}
 )
 
 func flatten(in io.Reader, out io.Writer, stream bool) {

flatten_test.go

@@ -15,46 +15,46 @@ func TestFlatten(t *testing.T) {
 		in  string
 		out []string
 	}{
-		{`null`, []string{`json = null`}},
-		{`true`, []string{`json = true`}},
-		{`false`, []string{`json = false`}},
-		{`42`, []string{`json = 42`}},
-		{`55.99999`, []string{`json = 55.99999`}},
-		{`-0.55`, []string{`json = -0.55`}},
-		{`"hi"`, []string{`json = "hi"`}},
+		{`null`, []string{`json	null`}},
+		{`true`, []string{`json	true`}},
+		{`false`, []string{`json	false`}},
+		{`42`, []string{`json	42`}},
+		{`55.99999`, []string{`json	55.99999`}},
+		{`-0.55`, []string{`json	-0.55`}},
+		{`"hi"`, []string{`json	"hi"`}},
 		{`{}`, []string{}},
-		{`{"key":"val"}`, []string{`json.key = "val"`}},
+		{`{"key":"val"}`, []string{`json.key	"val"`}},
 		{`{"!@#$%^&*()-_=+|{}привет,<>/?":1,"x x":2,"x][x":3,"x.x":4}`, []string{
-			`json.!@#$%^&*()-_=+|{}привет,<>/? = 1`,
-			`json["x x"] = 2`,
-			`json["x][x"] = 3`,
-			`json["x.x"] = 4`,
+			`json.!@#$%^&*()-_=+|{}привет,<>/?	1`,
+			`json["x x"]	2`,
+			`json["x][x"]	3`,
+			`json["x.x"]	4`,
 		}},
-		{`{"key":{"key":"val"}}`, []string{`json.key.key = "val"`}},
-		{`{"key":["val"]}`, []string{`json.key[0] = "val"`}},
+		{`{"key":{"key":"val"}}`, []string{`json.key.key	"val"`}},
+		{`{"key":["val"]}`, []string{`json.key[0]	"val"`}},
 		{
 			`{"key":[{"key":"val"},{"key":["val"]},42]}`,
 			[]string{
-				`json.key[0].key = "val"`,
-				`json.key[1].key[0] = "val"`,
-				`json.key[2] = 42`,
+				`json.key[0].key	"val"`,
+				`json.key[1].key[0]	"val"`,
+				`json.key[2]	42`,
 			},
 		},
 		{
 			`[{"key":["val",42,null]}]`,
 			[]string{
-				`json[0].key[0] = "val"`,
-				`json[0].key[1] = 42`,
-				`json[0].key[2] = null`,
+				`json[0].key[0]	"val"`,
+				`json[0].key[1]	42`,
+				`json[0].key[2]	null`,
 			},
 		},
 		{
 			`[1,"hi",true,null,{},[]]`,
 			[]string{
-				`json[0] = 1`,
-				`json[1] = "hi"`,
-				`json[2] = true`,
-				`json[3] = null`,
+				`json[0]	1`,
+				`json[1]	"hi"`,
+				`json[2]	true`,
+				`json[3]	null`,
 			},
 		},
 	}