Fixed using hyphens in the path of custom validation errors (#665)

* Fixed a bug where using hyphens in the path for custom validatons error didn't work

* Added closing bracket check and unit tests

* Automatically add brackets when path component contains hyphens

* use regexp to check if dot notation is safe

package-lock.json

@@ -1699,8 +1699,7 @@
         "ansi-regex": {
           "version": "2.1.1",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "aproba": {
           "version": "1.2.0",
@@ -1721,14 +1720,12 @@
         "balanced-match": {
           "version": "1.0.0",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "brace-expansion": {
           "version": "1.1.11",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "balanced-match": "^1.0.0",
             "concat-map": "0.0.1"
@@ -1743,20 +1740,17 @@
         "code-point-at": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "concat-map": {
           "version": "0.0.1",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "console-control-strings": {
           "version": "1.1.0",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "core-util-is": {
           "version": "1.0.2",
@@ -1873,8 +1867,7 @@
         "inherits": {
           "version": "2.0.3",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "ini": {
           "version": "1.3.5",
@@ -1886,7 +1879,6 @@
           "version": "1.0.0",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "number-is-nan": "^1.0.0"
           }
@@ -1901,7 +1893,6 @@
           "version": "3.0.4",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "brace-expansion": "^1.1.7"
           }
@@ -1909,14 +1900,12 @@
         "minimist": {
           "version": "0.0.8",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "minipass": {
           "version": "2.3.5",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "safe-buffer": "^5.1.2",
             "yallist": "^3.0.0"
@@ -1935,7 +1924,6 @@
           "version": "0.5.1",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "minimist": "0.0.8"
           }
@@ -2016,8 +2004,7 @@
         "number-is-nan": {
           "version": "1.0.1",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "object-assign": {
           "version": "4.1.1",
@@ -2029,7 +2016,6 @@
           "version": "1.4.0",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "wrappy": "1"
           }
@@ -2115,8 +2101,7 @@
         "safe-buffer": {
           "version": "5.1.2",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "safer-buffer": {
           "version": "2.1.2",
@@ -2152,7 +2137,6 @@
           "version": "1.0.2",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "code-point-at": "^1.0.0",
             "is-fullwidth-code-point": "^1.0.0",
@@ -2172,7 +2156,6 @@
           "version": "3.0.1",
           "bundled": true,
           "dev": true,
-          "optional": true,
           "requires": {
             "ansi-regex": "^2.0.0"
           }
@@ -2216,14 +2199,12 @@
         "wrappy": {
           "version": "1.0.2",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         },
         "yallist": {
           "version": "3.0.3",
           "bundled": true,
-          "dev": true,
+          "dev": true
-          "optional": true
         }
       }
     },

src/js/util.js

@@ -821,7 +821,13 @@ exports.parsePath = function parsePath(jsonPath) {
 exports.stringifyPath = function stringifyPath(path) {
   return path
       .map(function (p) {
-        return typeof p === 'number' ? ('[' + p + ']') : ('.' + p);
+        if (typeof p === 'number'){
+          return ('[' + p + ']');
+        } else if(typeof p === 'string' && p.match(/^[A-Za-z0-9_$]+$/)) {
+          return '.' + p;
+        } else {
+          return '["' + p + '"]';
+        }
       })
       .join('');
 };

test/util.test.js

@@ -97,6 +97,17 @@ describe('util', function () {
 
   describe('jsonPath', function () {
 
+    it('should stringify an array of paths', function() {
+      assert.deepEqual(util.stringifyPath([]), '');
+      assert.deepEqual(util.stringifyPath(['foo']), '.foo');
+      assert.deepEqual(util.stringifyPath(['foo', 'bar']), '.foo.bar');
+      assert.deepEqual(util.stringifyPath(['foo', 2]), '.foo[2]');
+      assert.deepEqual(util.stringifyPath(['foo', 2, 'bar']), '.foo[2].bar');
+      assert.deepEqual(util.stringifyPath(['foo', 2, 'bar_baz']), '.foo[2].bar_baz');
+      assert.deepEqual(util.stringifyPath(['foo', 'prop-with-hyphens']), '.foo["prop-with-hyphens"]');
+      assert.deepEqual(util.stringifyPath(['foo', 'prop with spaces']), '.foo["prop with spaces"]');
+    })
+
     it ('should parse a json path', function () {
       assert.deepEqual(util.parsePath(''), []);
       assert.deepEqual(util.parsePath('.foo'), ['foo']);