refactor: create Plain method

google.go

@@ -108,8 +108,8 @@ func (e *GoogleSearch) Ext(ext string) *GoogleSearch {
 }
 
 // Exclude excludes some results.
-func (e *GoogleSearch) Exclude(value string) *GoogleSearch {
-	e.tags = append(e.tags, e.concat(excludeTag, value, false))
+func (e *GoogleSearch) Exclude(tags *GoogleSearch) *GoogleSearch {
+	e.tags = append(e.tags, e.concat(excludeTag, tags.String(), false))
 	return e
 }
 
@@ -124,3 +124,9 @@ func (e *GoogleSearch) Intitle(value string) *GoogleSearch {
 	e.tags = append(e.tags, e.concat(intitleTag, value, true))
 	return e
 }
+
+// Plain allows you to add additional values as string without any kind of formatting.
+func (e *GoogleSearch) Plain(value string) *GoogleSearch {
+	e.tags = append(e.tags, value)
+	return e
+}

google_test.go

@@ -105,10 +105,10 @@ func TestInit(t *testing.T) {
 		dork = NewGoogleSearch()
 
 		result := dork.
-			Exclude("html").
-			Exclude("htm").
-			Exclude("php").
-			Exclude("md5sums").
+			Exclude(NewGoogleSearch().Plain("html")).
+			Exclude(NewGoogleSearch().Plain("htm")).
+			Exclude(NewGoogleSearch().Plain("php")).
+			Exclude(NewGoogleSearch().Plain("md5sums")).
 			String()
 
 		assert.Equal(result, "-html -htm -php -md5sums", "they should be equal")