From 277be0d75619db5d3a747318a72d9f14e2e0850c Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Mon, 5 Jan 2015 18:42:14 +0000
Subject: Use boost::program_options for cli

---
 slicer/tool/Jamfile.jam |  3 +++
 slicer/tool/slicer.cpp  | 30 +++++++++++++++++++++++++-----
 2 files changed, 28 insertions(+), 5 deletions(-)

diff --git a/slicer/tool/Jamfile.jam b/slicer/tool/Jamfile.jam
index de50043..16942a0 100644
--- a/slicer/tool/Jamfile.jam
+++ b/slicer/tool/Jamfile.jam
@@ -1,5 +1,8 @@
+lib po : : <name>boost_program_options ;
+
 exe slicer :
 	[ glob *.cpp ]
 	:
 	<library>../slicer//slicer
+	<library>po
 	;
diff --git a/slicer/tool/slicer.cpp b/slicer/tool/slicer.cpp
index ce58c57..1a41bcb 100644
--- a/slicer/tool/slicer.cpp
+++ b/slicer/tool/slicer.cpp
@@ -1,17 +1,37 @@
 #include <slicer/parser.h>
+#include <boost/program_options.hpp>
+
+namespace po = boost::program_options;
 
 int
 main(int argc, char ** argv)
 {
-	if (argc < 3) {
-		fprintf(stderr, "slicer <input.ice> <output.cpp>\n");
+	boost::filesystem::path slice;
+	boost::filesystem::path cpp;
+
+	po::options_description opts("Slicer options");
+	opts.add_options()
+		("help,h", "Show this help message")
+		("slice,i", po::value(&slice), "Input ICE Slice file")
+		("cpp,o", po::value(&cpp), "Output C++ file");
+
+	po::positional_options_description p;
+	p.add("slice", 1);
+	p.add("cpp", 1);
+
+	po::variables_map vm;
+	po::store(po::command_line_parser(argc, argv).options(opts).positional(p).run(), vm);
+	po::notify(vm);
+
+	if (vm.count("help") || slice.empty() || cpp.empty()) {
+		std::cout << opts << std::endl;
 		return 1;
 	}
 
-	const boost::filesystem::path slice = argv[1];
-	const boost::filesystem::path cpp = argv[2];
-
 	Slicer::Slicer::Apply(slice, cpp);
 
 	return 0;
 }
+
+
+
-- 
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