From ef55bf00602ea50dc76d9b95503c1e9fe353b092 Mon Sep 17 00:00:00 2001
From: BluJ <mogulslayer@gmail.com>
Date: Fri, 15 Jul 2022 13:16:34 -0600
Subject: [PATCH] feat: Negation at the begining

---
 emvar-lite/mod.ts  |  3 +++
 emvar-lite/test.ts | 37 +++++++++++++++++++++++++++++++++++--
 2 files changed, 38 insertions(+), 2 deletions(-)

diff --git a/emvar-lite/mod.ts b/emvar-lite/mod.ts
index 8c11273..e5239b5 100644
--- a/emvar-lite/mod.ts
+++ b/emvar-lite/mod.ts
@@ -146,6 +146,9 @@ export class Checker {
             EmVar.from(version)
             return true
         });
+        if (range.startsWith('!')) {
+            return Checker.parse(range.substring(1)).not()
+        }
         const starSubMatches = starSub.exec(range)
         if (starSubMatches != null) {
             const emVarLower = EmVar.parse(starSubMatches[1])
diff --git a/emvar-lite/test.ts b/emvar-lite/test.ts
index 2e93784..4edeba6 100644
--- a/emvar-lite/test.ts
+++ b/emvar-lite/test.ts
@@ -142,7 +142,7 @@ const { test } = Deno;
 
 {
     const checker = notRange(rangeOf('1.2.*'));
-    test(`!rangeOf(1.2.*) valid`, () => {
+    test(`notRange(rangeOf(1.2.*)) valid`, () => {
         expect(checker.check("1.3")).toBe(true);
         expect(checker.check("1.3.1")).toBe(true);
 
@@ -153,7 +153,26 @@ const { test } = Deno;
 
         expect(checker.check("2")).toBe(true);
     })
-    test(`!rangeOf(1.2.*) invalid `, () => {
+    test(`notRange(rangeOf(1.2.*)) invalid `, () => {
+        expect(checker.check("1.2")).toBe(false);
+        expect(checker.check("1.2.1")).toBe(false);
+    })
+}
+
+{
+    const checker = rangeOf('!1.2.*');
+    test(`!(rangeOf(1.2.*)) valid`, () => {
+        expect(checker.check("1.3")).toBe(true);
+        expect(checker.check("1.3.1")).toBe(true);
+
+        expect(checker.check("1.1.1")).toBe(true);
+        expect(checker.check("1.1")).toBe(true);
+        expect(checker.check("1")).toBe(true);
+
+
+        expect(checker.check("2")).toBe(true);
+    })
+    test(`!(rangeOf(1.2.*)) invalid `, () => {
         expect(checker.check("1.2")).toBe(false);
         expect(checker.check("1.2.1")).toBe(false);
     })
@@ -166,4 +185,18 @@ const { test } = Deno;
     test(`no or ranges`, () => {
         expect(() => rangeOr()).toThrow()
     })
+}
+{
+    const checker = rangeOf("!>1.2.3.4");
+    test(`rangeOf("!>1.2.3.4") invalid`, () => {
+        expect(checker.check("2")).toBe(false);
+        expect(checker.check("1.2.3.5")).toBe(false);
+        expect(checker.check("1.2.3.4.1")).toBe(false);
+    })
+
+    test(`rangeOf("!>1.2.3.4") valid`, () => {
+        expect(checker.check("1.2.3.4")).toBe(true);
+        expect(checker.check("1.2.3")).toBe(true);
+        expect(checker.check("1")).toBe(true);
+    })
 }
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