From 56043ebcd54578b090b848f9cd9a5e7616e7dd0e Mon Sep 17 00:00:00 2001
From: ruki <waruqi@gmail.com>
Date: Tue, 9 Oct 2018 22:57:49 +0800
Subject: add version instance api

---
 xmake/core/base/semver.lua | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/xmake/core/base/semver.lua b/xmake/core/base/semver.lua
index b52ac5769..15d1d2484 100644
--- a/xmake/core/base/semver.lua
+++ b/xmake/core/base/semver.lua
@@ -60,9 +60,14 @@ function _instance:rawstr()
     return self:get("raw")
 end
 
--- get the raw version string
-function _instance:__tostring()
-    return self:rawstr()
+-- satisfies the given semantic version(.e.g '> 1.0 < 2.0', '~1.5')?
+function _instance:satisfies(version)
+    return semver.satisfies(self:rawstr(), version) 
+end
+
+-- is in the given version range, [version1, version2]?
+function _instance:at(version1, version2)
+    return self:ge(version1) and self:le(version2)
 end
 
 -- v1 == v2 (str/ver)?
@@ -117,6 +122,11 @@ function _instance:__le(version)
     return self:le(version)
 end
 
+-- get the raw version string
+function _instance:__tostring()
+    return self:rawstr()
+end
+
 -- new an instance
 function semver.new(version)
 
-- 
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