Add config option "disablePathToLower"

Enabling this prevents lowercasing of the path/url.

Fixes #557

helpers/path.go

@@ -78,11 +78,13 @@ func MakePath(s string) string {
 	return UnicodeSanitize(strings.Replace(strings.TrimSpace(s), " ", "-", -1))
 }
 
-// MakePathToLower creates a Unicode-sanitized string, with the spaces replaced,
-// and transformed to lower case.
-// E.g. Social Media -> social-media
-func MakePathToLower(s string) string {
-	return strings.ToLower(MakePath(s))
+// MakePathSanitized creates a Unicode-sanitized string, with the spaces replaced
+func MakePathSanitized(s string) string {
+	if viper.GetBool("DisablePathToLower") {
+		return MakePath(s)
+	} else {
+		return strings.ToLower(MakePath(s))
+	}
 }
 
 func MakeTitle(inpath string) string {

helpers/path_test.go

@@ -42,7 +42,10 @@ func TestMakePath(t *testing.T) {
 	}
 }
 
-func TestMakePathToLower(t *testing.T) {
+func TestMakePathSanitized(t *testing.T) {
+	viper.Reset()
+	defer viper.Reset()
+
 	tests := []struct {
 		input    string
 		expected string
@@ -54,8 +57,34 @@ func TestMakePathToLower(t *testing.T) {
 		{"трям/трям", "трям/трям"},
 		{"은행", "은행"},
 	}
+
 	for _, test := range tests {
-		output := MakePathToLower(test.input)
+		output := MakePathSanitized(test.input)
+		if output != test.expected {
+			t.Errorf("Expected %#v, got %#v\n", test.expected, output)
+		}
+	}
+}
+
+func TestMakePathSanitizedDisablePathToLower(t *testing.T) {
+	viper.Reset()
+	defer viper.Reset()
+	viper.Set("DisablePathToLower", true)
+
+	tests := []struct {
+		input    string
+		expected string
+	}{
+		{"  FOO bar  ", "FOO-bar"},
+		{"Foo.Bar/fOO_bAr-Foo", "Foo.Bar/fOO_bAr-Foo"},
+		{"FOO,bar:Foo%Bar", "FOObarFooBar"},
+		{"foo/BAR.HTML", "foo/BAR.HTML"},
+		{"трям/трям", "трям/трям"},
+		{"은행", "은행"},
+	}
+
+	for _, test := range tests {
+		output := MakePathSanitized(test.input)
 		if output != test.expected {
 			t.Errorf("Expected %#v, got %#v\n", test.expected, output)
 		}

helpers/url.go

@@ -102,7 +102,7 @@ func SanitizeURLKeepTrailingSlash(in string) string {
 //     uri: Vim (text editor)
 //     urlize: vim-text-editor
 func URLize(uri string) string {
-	sanitized := MakePathToLower(uri)
+	sanitized := MakePathSanitized(uri)
 
 	// escape unicode letters
 	parsedUri, err := url.Parse(sanitized)