From 146930268a695dcc0432599d625ec3eb7e74025e Mon Sep 17 00:00:00 2001
From: Mike Buland <eichlan@xagasoft.com>
Date: Fri, 18 Dec 2009 08:59:16 +0000
Subject: The OptParser still needs help banners and more helper functions, but
 otherwise, it's done.  It works great, and provides much flexibility and
 usefulness.

It now relies on the input side of the Formatter class, which at the moment
supports reading strings...not real useful yet...

Next up, adding readers for numbers and such, then it'll be mostly complete.

Also, fixed a bug when copying uninitialized signal objects.
---
 src/optparser.h | 59 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)

(limited to 'src/optparser.h')

diff --git a/src/optparser.h b/src/optparser.h
index ed32e45..acfb35d 100644
--- a/src/optparser.h
+++ b/src/optparser.h
@@ -6,6 +6,8 @@
 #include "bu/hash.h"
 #include "bu/signals.h"
 #include "bu/array.h"
+#include "bu/membuf.h"
+#include "bu/formatter.h"
 
 namespace Bu
 {
@@ -13,11 +15,51 @@ namespace Bu
 	class OptParser
 	{
 	public:
+		class _ValueProxy
+		{
+		public:
+			_ValueProxy();
+			virtual ~_ValueProxy();
+
+			virtual void setValue( const Bu::FString & )=0;
+			virtual _ValueProxy *clone()=0;
+		};
+
+		template<typename ptype>
+		class ValueProxy : public _ValueProxy
+		{
+		public:
+			ValueProxy( ptype &v ) :
+				v( v )
+			{
+			}
+
+			virtual ~ValueProxy()
+			{
+			}
+
+			virtual void setValue( const Bu::FString &sVal )
+			{
+				Bu::MemBuf mb( sVal );
+				Bu::Formatter f( mb );
+				f >> v;
+			}
+			
+			virtual _ValueProxy *clone()
+			{
+				return new ValueProxy<ptype>( v );
+			}
+
+		private:
+			ptype &v;
+		};
+
 		typedef Signal1<int, StrArray> OptionSignal;
 		class Option
 		{
 		public:
 			Option();
+			Option( const Option &rSrc );
 			virtual ~Option();
 
 			char cOpt;
@@ -25,6 +67,8 @@ namespace Bu
 			Bu::FString sHelp;
 			OptionSignal sUsed;
 			bool bShortHasParams;
+			_ValueProxy *pProxy;
+			Bu::FString sOverride;
 		};
 
 	public:
@@ -34,6 +78,21 @@ namespace Bu
 		void parse( int argc, char **argv );
 
 		void addOption( const Option &opt );
+		
+		template<typename vtype>
+		void addOption( char cOpt, const Bu::FString &sOpt, vtype &var,
+				const Bu::FString &sHelp="", const Bu::FString &sOverride="" )
+		{
+			Option o;
+			o.cOpt = cOpt;
+			o.sOpt = sOpt;
+			o.pProxy = new ValueProxy<vtype>( var );
+			o.bShortHasParams = true;
+			o.sHelp = sHelp;
+			o.sOverride = sOverride;
+			addOption( o );
+		}
+		
 		void addHelpOption( char c, const Bu::FString &s, const Bu::FString &sHelp );
 
 		int optHelp( StrArray aParams );
-- 
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