From 33cf8134413a1f89135f38665dfbc8105c330b0b Mon Sep 17 00:00:00 2001
From: Connor Berghoffer <connordberghoffer@gmail.com>
Date: Wed, 19 Nov 2025 16:33:19 +1300
Subject: [PATCH] fix: negative flags only work with double dash

Single dash negative flags like -no-flag were incorrectly parsing as boolean negation. Now only double dash --no-flag syntax works for negation, which matches standard CLI conventions.

Fixes #209
---
 src/_parser.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/_parser.ts b/src/_parser.ts
index 2a53a0f..490486e 100644
--- a/src/_parser.ts
+++ b/src/_parser.ts
@@ -119,7 +119,7 @@ export function parseRawArgs<T = Default>(
 
     if (j === 0) {
       out._.push(arg);
-    } else if (arg.substring(j, j + 3) === "no-") {
+    } else if (j === 2 && arg.substring(j, j + 3) === "no-") {
       name = arg.slice(Math.max(0, j + 3));
       if (strict && !~keys.indexOf(name)) {
         return opts.unknown(arg);