FIX : https://github.com/KenanY/json2toml/issues/92

index.js

@@ -11,6 +11,27 @@ function format(obj) {
     : JSON.stringify(obj);
 }
 
+function isArrayOfTables(simplePairs) {
+  return simplePairs.some(function(simplePairArray) {
+    return Array.isArray(simplePairArray[1]) && isPlainObject(simplePairArray[1][0]);
+  });
+}
+
+function isArrayOfObjects(array) {
+  return Array.isArray(array) && array.every(function(element) {
+    return isPlainObject(element);
+  });
+}
+
+function isObjectArrayOfTables(obj) {
+  return Array.isArray(obj) && obj.length === 2 && isArrayOfObjects(obj[1]);
+}
+
+function isLastObjectArrayOfTables(simplePairs) {
+  var array = simplePairs[simplePairs.length - 1];
+  return isObjectArrayOfTables(array);
+}
+
 module.exports = function(hash, options = {}) {
   function visit(hash, prefix) {
     var nestedPairs = [];
@@ -23,7 +44,8 @@ module.exports = function(hash, options = {}) {
       (isPlainObject(value) ? nestedPairs : simplePairs).push([key, value]);
     });
 
-    if (!(isEmpty(prefix) || isEmpty(simplePairs))) {
+    if (!isEmpty(prefix) && !isEmpty(simplePairs)
+      && !isArrayOfTables(simplePairs)) {
       toml += '[' + prefix + ']\n';
       indentStr = ''.padStart(options.indent, ' ');
     }
@@ -32,10 +54,30 @@ module.exports = function(hash, options = {}) {
       var key = array[0];
       var value = array[1];
 
-      toml += indentStr + key + ' = ' + format(value) + '\n';
+      if (isObjectArrayOfTables(array)) {
+        if (simplePairs.indexOf(array) > 0 && options.newlineAfterSection) {
+          var lastObj = simplePairs[simplePairs.indexOf(array) - 1];
+          if (!isObjectArrayOfTables(lastObj)) {
+            toml += '\n';
+          }
+        }
+        forEach(value, function(obj) {
+          if (!isEmpty(prefix)) {
+            toml += '[[' + prefix + '.' + key + ']]\n';
+          }
+          else {
+            toml += '[[' + key + ']]\n';
+          }
+          visit(obj, '');
+        });
+      }
+      else {
+        toml += indentStr + key + ' = ' + format(value) + '\n';
+      }
     });
 
-    if (!isEmpty(simplePairs) && options.newlineAfterSection) {
+    if (!isEmpty(simplePairs) && !isLastObjectArrayOfTables(simplePairs)
+      && options.newlineAfterSection) {
       toml += '\n';
     }
 

test/index.js

@@ -50,6 +50,53 @@ test('nested', function(t) {
   t.equal(json2toml(hash), toml);
 });
 
+test('mixed array', function(t) {
+  t.plan(1);
+  console.log(json2toml({"foo": [{"bar": false}, 9, true]}))
+  var hash = { nested: [{ a: 'one' }, 1, true, 'string'] };
+  var toml = 'nested = [{"a":"one"},1,true,"string"]\n';
+
+  t.equal(json2toml(hash), toml);
+});
+
+test('nested array of tables', function(t) {
+  t.plan(2);
+
+  var hash = { nested: [{ a: 'one' }, { a: 'two' }] };
+  var toml = '[[nested]]\n'
+             + 'a = "one"\n'
+             + '[[nested]]\n'
+             + 'a = "two"\n';
+  t.equal(json2toml(hash), toml);
+
+  hash.other = {};
+  hash.other.nest = [{ a: 'one' }, { a: 'two' }];
+  toml = toml + '[[other.nest]]\n'
+          + 'a = "one"\n'
+          + '[[other.nest]]\n'
+          + 'a = "two"\n';
+  t.equal(json2toml(hash), toml);
+});
+
+test('nested array of tables with new line', function(t) {
+  t.plan(2);
+
+  var hash = { nested: [{ a: 'one' }, { a: 'two' }] };
+  var toml = '[[nested]]\n'
+             + 'a = "one"\n\n'
+             + '[[nested]]\n'
+             + 'a = "two"\n\n';
+  t.equal(json2toml(hash, { newlineAfterSection: true }), toml);
+
+  hash.other = {};
+  hash.other.nest = [{ a: 'one' }, { a: 'two' }];
+  toml = toml + '[[other.nest]]\n'
+          + 'a = "one"\n\n'
+          + '[[other.nest]]\n'
+          + 'a = "two"\n\n';
+  t.equal(json2toml(hash, { newlineAfterSection: true }), toml);
+});
+
 test('pretty', function(t) {
   t.plan(1);