Adds funk.Get support for complex map keys

README.rst

@@ -449,11 +449,15 @@ Retrieves the value at path of struct(s) or map(s).
         "FirstName": "Dark",
         "LastName":  "Vador",
         "Age":       30,
+        "Labels": map[string]interface{} {
+            "example.com/hello": "world",
+        },
     } // foo2.Bar is nil
 
     funk.Get(bar, "Name") // "Test"
     funk.Get([]map[string]interface{}{foo1, foo2}, "Bar.Name") // []string{"Test"}
     funk.Get(foo2, "Bar.Name") // nil
+    funk.Get(foo2, `Labels."example.com/hello"`) // world
 
 
 ``funk.Get`` also handles ``nil`` values:
@@ -503,7 +507,7 @@ Set value at a path of a struct
 .. code-block:: go
 
     var bar Bar = Bar{
-        Name: "level-0", 
+        Name: "level-0",
         Bar: &Bar{
             Name: "level-1",
             Bars: []*Bar{
@@ -825,14 +829,14 @@ Generates a sharded string with a fixed length and depth.
 funk.Subset
 .............
 
-Returns true if a collection is a subset of another 
+Returns true if a collection is a subset of another
 
 .. code-block:: go
 
     funk.Subset([]int{1, 2, 4}, []int{1, 2, 3, 4, 5}) // true
     funk.Subset([]string{"foo", "bar"},[]string{"foo", "bar", "hello", "bar", "hi"}) //true
-   
-    
+
+
 Performance
 -----------
 

retrieve.go

@@ -80,7 +80,17 @@ func get(value reflect.Value, path string) reflect.Value {
 		return resultSlice
 	}
 
-	parts := strings.Split(path, ".")
+	quoted := false
+	parts := strings.FieldsFunc(path, func(r rune) bool {
+		if r == '"' {
+			quoted = !quoted
+		}
+		return !quoted && r == '.'
+	})
+
+	for i, part := range parts {
+		parts[i] = strings.Trim(part, "\"")
+	}
 
 	for _, part := range parts {
 		value = redirectValue(value)

retrieve_test.go

@@ -50,12 +50,15 @@ func TestGetMap(t *testing.T) {
 	is := assert.New(t)
 	m := map[string]interface{}{
 		"bar": map[string]interface{}{
-			"name": "foobar",
+			"name":              "foobar",
+			"example.com/hello": "world",
 		},
 	}
 
 	is.Equal("foobar", Get(m, "bar.name"))
+	is.Equal("world", Get(m, `bar."example.com/hello"`))
 	is.Equal(nil, Get(m, "foo.name"))
+	is.Equal(nil, Get(m, `foo."example.com/hello"`))
 	is.Equal([]interface{}{"dark", "dark"}, Get([]map[string]interface{}{m1, m2}, "firstname"))
 	is.Equal([]interface{}{"test"}, Get([]map[string]interface{}{m1, m2}, "bar.name"))
 }