From: Maxime Leroy <maxime.leroy76@gmail.com>
Date: Thu, 26 Jun 2014 19:14:07 +0000 (-0400)
Subject: opts: added possibility to hide an option from the usage (easter egg?)
X-Git-Tag: v0.6.7~22^2~2
X-Git-Url: http://nitlanguage.org

opts: added possibility to hide an option from the usage (easter egg?)

Signed-off-by: Maxime Leroy <maxime.leroy76@gmail.com>
---

diff --git a/lib/opts.nit b/lib/opts.nit
index 97a2a1f..20bf42f 100644
--- a/lib/opts.nit
+++ b/lib/opts.nit
@@ -31,6 +31,9 @@ abstract class Option
 	# Is this option mandatory?
 	var mandatory: Bool writable = false
 
+	# Is this option hidden from `usage`?
+	var hidden: Bool writable = false
+
 	# Has this option been read?
 	var read: Bool writable = false
 
@@ -276,9 +279,11 @@ class OptionContext
 			end
 			if lmax < l then lmax = l
 		end
-		
+
 		for i in options do
-			print(i.pretty(lmax))
+			if not i.hidden then
+				print(i.pretty(lmax))
+			end
 		end
 	end