adding optional config for indent

Author: luizstacio

README.md

@@ -1,14 +1,14 @@
 json-format
 ==========
 
-Change for using with npm modules. [original version](https://github.com/phoboslab/json-format).
+Parse JavaScript Object to a JSON String indented.
 
-#### Instaling ####
+#### Instaling
 ```
   npm install json-format
 ```
 
-#### Usage ###
+#### Usage
 ```
   var jsonFormat = require('./');
   var fs = require('fs');
@@ -17,16 +17,53 @@ Change for using with npm modules. [original version](https://github.com/phobosl
     b: 2
   }
 
-  fs.writeFile('example.json', jsonFormat(obj), function(err){
+  /* using config default, indent with tabs */
+  fs.writeFile('example_tabs.json', jsonFormat(obj), function(err){
+    if (err) throw err;
+    console.log('saved');
+  });
+
+  /* using indent with spaces */
+  var config = {
+    type: 'space',
+    size: 2
+  }
+
+  fs.writeFile('example_spaces.json', jsonFormat(obj, config), function(err){
     if (err) throw err;
     console.log('saved');
   });
 ```
 
-#### Result ####
+##### Result `example_tabs.json`
+```
+{
+    "a": 1,
+    "b": 2
+}
+```
+
+##### Result `example_spaces.json`
 ```
 {
   "a": 1,
   "b": 2
 }
-```
+```
+
+#### Default sizes
+```
+{
+  tab: { size: 1 },
+  space: { size: 4 }
+}
+```
+
+#### Config default
+```
+{
+  type: 'tab'
+}
+```
+
+[Based in this project](https://github.com/phoboslab/json-format).

index.js

@@ -9,11 +9,18 @@
   http://www.opensource.org/licenses/mit-license.php
 */
 var p = [],
+  indentConfig = {
+    tab: { char: '\t', size: 1 },
+    space: { char: ' ', size: 4 }
+  },
+  configDefault = {
+    type: 'tab'
+  },
   push = function( m ) { return '\\' + p.push( m ) + '\\'; },
   pop = function( m, i ) { return p[i-1] },
-  tabs = function( count ) { return new Array( count + 1 ).join( '\t' ); };
+  tabs = function( count, indentType) { return new Array( count + 1 ).join( indentType ); };
 
-function JSONFormat ( json ) {
+function JSONFormat ( json, indentType ) {
   p = [];
   var out = "",
       indent = 0;
@@ -31,14 +38,14 @@ function JSONFormat ( json ) {
     switch(c) {
       case '{':
       case '[':
-        out += c + "\n" + tabs(++indent);
+        out += c + "\n" + tabs(++indent, indentType);
         break;
       case '}':
       case ']':
-        out += "\n" + tabs(--indent) + c;
+        out += "\n" + tabs(--indent, indentType) + c;
         break;
       case ',':
-        out += ",\n" + tabs(indent);
+        out += ",\n" + tabs(indent, indentType);
         break;
       case ':':
         out += ": ";
@@ -59,6 +66,15 @@ function JSONFormat ( json ) {
   return out;
 };
 
-module.exports = function(json){
-  return JSONFormat(JSON.stringify(json));
+module.exports = function(json, config){
+  config = config || configDefault;
+  var indent = indentConfig[config.type];
+
+  if ( indent == null ) {
+    throw('[' + config.type + '] is not compatible!');
+  } else {
+    indentType = new Array((config.size || indent.size) + 1).join(indent.char);
+  }
+
+  return JSONFormat(JSON.stringify(json), indentType);
 }

package.json

@@ -1,6 +1,6 @@
 {
   "name": "json-format",
-  "version": "0.0.1",
+  "version": "0.1.1",
   "description": "JSON format for good presentation",
   "main": "index.js",
   "scripts": {

sample.js

@@ -0,0 +1,23 @@
+var jsonFormat = require('json-format');
+var fs = require('fs');
+var obj = {
+  a: 1,
+  b: 2
+}
+
+/* using config default, indent with tabs */
+fs.writeFile('example_tabs.json', jsonFormat(obj), function(err){
+  if (err) throw err;
+  console.log('saved');
+});
+
+/* using indent with spaces */
+var config = {
+  type: 'space',
+  size: 2
+}
+
+fs.writeFile('example_spaces.json', jsonFormat(obj, config), function(err){
+  if (err) throw err;
+  console.log('saved');
+});