rudimentry support for nested quotes

godotenv.go

@@ -234,7 +234,7 @@ func parseValue(value string) string {
 		last := string(value[len(value)-1:])
 		if first == last && strings.ContainsAny(first, `"'`) {
 			// pull the quotes off the edges
-			value = strings.Trim(value, `"'`)
+			value = value[1 : len(value)-1]
 			// handle escapes
 			escapeRegex := regexp.MustCompile(`\\.`)
 			value = escapeRegex.ReplaceAllStringFunc(value, func(match string) string {

godotenv_test.go

@@ -199,6 +199,9 @@ func TestParsing(t *testing.T) {
 	// parses escaped double quotes
 	parseAndCompare(t, `FOO="escaped\"bar"`, "FOO", `escaped"bar`)
 
+	// parses single quotes inside double quotes
+	parseAndCompare(t, `FOO="'d'"`, "FOO", `'d'`)
+
 	// parses yaml style options
 	parseAndCompare(t, "OPTION_A: 1", "OPTION_A", "1")