From e53253f9d1e80dd8a9b67befbe604f8bd85f032c Mon Sep 17 00:00:00 2001
From: =?utf8?q?Alexis=20Laferri=C3=A8re?= <alexis.laf@xymus.net>
Date: Thu, 20 Aug 2015 16:58:20 -0400
Subject: [PATCH] contrib/objcwrapper: intro basic framework for command line
 options
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Signed-off-by: Alexis Laferrière <alexis.laf@xymus.net>
---
 contrib/objcwrapper/src/objcwrapper.nit |   23 ++++++++++++++++++++---
 1 file changed, 20 insertions(+), 3 deletions(-)

diff --git a/contrib/objcwrapper/src/objcwrapper.nit b/contrib/objcwrapper/src/objcwrapper.nit
index 3a941ed..d697cf5 100644
--- a/contrib/objcwrapper/src/objcwrapper.nit
+++ b/contrib/objcwrapper/src/objcwrapper.nit
@@ -15,18 +15,35 @@
 # Generator of Nit modules to wrap Objective-C services
 module objcwrapper
 
+import nitcc_runtime
+import opts
+
 import objc_visitor
 import objc_model
 import objc_generator
-
-import nitcc_runtime
 import objc_lexer
 import objc_parser
 
+var opt_help = new OptionBool("Show this help message", "-h", "--help")
+
+var opts = new OptionContext
+opts.add_option(opt_help, opt_output)
+opts.parse(args)
+
+if opts.errors.not_empty or opts.rest.is_empty or opt_help.value then
+	print """
+Usage: objcwrapper [options] input_file [other_input_file [...]]
+Options:"""
+	opts.usage
+
+	if opt_help.value then exit 0
+	exit 1
+end
+
 var v = new Interpretor
 var g = new CodeGenerator
 
-for arg in args do
+for arg in opts.rest do
 	# Read input
 	var content = arg.to_path.read_all
 
-- 
1.7.9.5