From 0f05f7c1eecfcc5fd968ce69a686f621dd3a3339 Mon Sep 17 00:00:00 2001
From: Kaiyin Zhong <k.zhong@gemvision.io>
Date: Wed, 26 Jun 2019 11:28:06 +0200
Subject: [PATCH] get extension of path

---
 os/os.v | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/os/os.v b/os/os.v
index 696949a874..c7399d3e65 100644
--- a/os/os.v
+++ b/os/os.v
@@ -386,6 +386,15 @@ fn print_c_errno() {
 	# printf("errno=%d err='%s'\n", errno, strerror(errno));
 }
 
+
+pub fn get_extension(path string) string {
+	pos := path.last_index('.')
+	if pos == -1 {
+		return ''
+	}
+	return path.right(pos)
+}
+
 pub fn basedir(path string) string {
 	pos := path.last_index('/')
 	if pos == -1 {