Changed a few defaults and added a new option.

Changed the default seperator to '>' for easier use with "cut".

Removed the ability to change the string wrapper in order to leverage
the strconv.Quote functionality which will escape all of the special
characters in a string in order to ensure everything stays on one line.

Now hiding the keys by default. Added an option to display them.

Makefile

@@ -6,5 +6,8 @@ all: build
 build:
 	${GO} build -o ./jsonf
 
+install: build
+	cp ./jsonf /usr/bin/
+
 clean: ./jsonf
-	rm -rf jsonf
+	rm -rf ./jsonf

README.md

@@ -11,26 +11,27 @@ Usage of jsonf:
   -a="[]": The runes used to wrap output array indexes.
   -i="": The input file. Defaults to stdin.
   -k="{}": The runes used to wrap output keys.
+  -keys=false: If true, keys are printed on their own line.
   -o="": The output file. Defaults to stdout.
   -s="\"\"": The runes used to wrap output strings.
-  -sep="->": String used to seperate keys.
+  -sep=">": String used to seperate keys.
 ```
 
 ```bash
-$ jsonf
+$ jsonf --keys
 {"colors": ["red", "blue", "green"], "numbers": [1, 2, 3], "active": true}
-->{active}
-->{active}->true
-->{colors}
-->{colors}->[]
-->{colors}->[0]->"red"
-->{colors}->[1]->"blue"
-->{colors}->[2]->"green"
-->{numbers}
-->{numbers}->[]
-->{numbers}->[0]->1
-->{numbers}->[1]->2
-->{numbers}->[2]->3
+>{active}
+>{active}>true
+>{colors}
+>{colors}>[]
+>{colors}>[0]>"red"
+>{colors}>[1]>"blue"
+>{colors}>[2]>"green"
+>{numbers}
+>{numbers}>[]
+>{numbers}>[0]>1
+>{numbers}>[1]>2
+>{numbers}>[2]>3
 ```
 
 # Examples
@@ -39,7 +40,7 @@ $ jsonf
 
 ```bash
 $ curl -s 'https://api.github.com/repos/andrewguenther/jsonf/commits' |
-  jsonf -sep='>' |
+  jsonf |
   grep -a "\[0\].*{commit}>{committer}>.*>" |
   cut -d ">" -f 5,6
 {name}>"Andrew Guenther"
@@ -51,7 +52,7 @@ $ curl -s 'https://api.github.com/repos/andrewguenther/jsonf/commits' |
 
 ```bash
 $ curl -s 'https://www.reddit.com/.json' |
-  jsonf -sep='>' |
+  jsonf |
   grep '>{data}>{children}>\[.\+\]>{data}>{url}>' |
   cut -d '>' -f 7
 "https://i.imgur.com/qH91IEl.gifv"

jsonf.go

@@ -7,6 +7,7 @@ import (
 	"io"
 	"log"
 	"os"
+	"strconv"
 )
 
 func main() {
@@ -22,12 +23,12 @@ func main() {
 }
 
 type JsonfOptions struct {
-	decoder   *json.Decoder
-	output    io.Writer
-	keyWrap   string
-	strWrap   string
-	arrWrap   string
-	seperator string
+	decoder     *json.Decoder
+	output      io.Writer
+	keyWrap     string
+	arrWrap     string
+	seperator   string
+	includeKeys bool
 }
 
 func HandleArgs(opts *JsonfOptions) {
@@ -36,9 +37,9 @@ func HandleArgs(opts *JsonfOptions) {
 	var outputFile string
 	flag.StringVar(&outputFile, "o", "", "The output file. Defaults to stdout.")
 	flag.StringVar(&opts.keyWrap, "k", "{}", "The runes used to wrap output keys.")
-	flag.StringVar(&opts.strWrap, "s", "\"\"", "The runes used to wrap output strings.")
 	flag.StringVar(&opts.arrWrap, "a", "[]", "The runes used to wrap output array indexes.")
-	flag.StringVar(&opts.seperator, "sep", "->", "String used to seperate keys.")
+	flag.StringVar(&opts.seperator, "sep", ">", "String used to seperate keys.")
+	flag.BoolVar(&opts.includeKeys, "keys", false, "If true, keys are printed on their own line.")
 
 	flag.Parse()
 
@@ -61,16 +62,13 @@ func HandleArgs(opts *JsonfOptions) {
 	if len(opts.keyWrap) != 2 {
 		panic("-k must contain exactly two characters")
 	}
-	if len(opts.strWrap) != 2 {
-		panic("-s must contain exactly two characters")
-	}
 	if len(opts.arrWrap) != 2 {
 		panic("-a must contain exactly two characters")
 	}
 }
 
 func Jsonf(opts JsonfOptions) {
-	for {
+	for numReads := 0; ; numReads++ {
 		var json interface{}
 		if err := opts.decoder.Decode(&json); err != nil {
 			if err.Error() != "EOF" {
@@ -79,7 +77,7 @@ func Jsonf(opts JsonfOptions) {
 				return
 			}
 		}
-		ProcessJsonValue(opts, "", json)
+		ProcessJsonValue(opts, strconv.Itoa(numReads), json)
 	}
 }
 
@@ -88,17 +86,21 @@ func ProcessJsonValue(opts JsonfOptions, leadKey string, json interface{}) {
 	case map[string]interface{}:
 		for key, value := range json.(map[string]interface{}) {
 			keyLead := fmt.Sprintf("%s%s%c%s%c", leadKey, opts.seperator, opts.keyWrap[0], key, opts.keyWrap[1])
-			fmt.Fprintln(opts.output, keyLead)
+			if opts.includeKeys {
+				fmt.Fprintln(opts.output, keyLead)
+			}
 			ProcessJsonValue(opts, keyLead, value)
 		}
 	case []interface{}:
-		fmt.Fprintf(opts.output, "%s%s%c%c\n", leadKey, opts.seperator, opts.arrWrap[0], opts.arrWrap[1])
+		if opts.includeKeys {
+			fmt.Fprintf(opts.output, "%s%s%c%c\n", leadKey, opts.seperator, opts.arrWrap[0], opts.arrWrap[1])
+		}
 		for index, value := range json.([]interface{}) {
 			elemLead := fmt.Sprintf("%s%s%c%d%c", leadKey, opts.seperator, opts.arrWrap[0], index, opts.arrWrap[1])
 			ProcessJsonValue(opts, elemLead, value)
 		}
 	case string:
-		fmt.Fprintf(opts.output, "%s%s%c%s%c\n", leadKey, opts.seperator, opts.strWrap[0], json, opts.strWrap[1])
+		fmt.Fprintf(opts.output, "%s%s%s\n", leadKey, opts.seperator, strconv.Quote(json.(string)))
 	default:
 		fmt.Fprintf(opts.output, "%s%s%v\n", leadKey, opts.seperator, json)
 	}