Add OS X copy/paste support (10.6+ apparently) to the SDL console.

Thanks to Larry Lagomorph for the use of his Mac for this effort!

src/conio/GNUmakefile

@@ -21,6 +21,7 @@ endif
 
 ifdef WITH_SDL_AUDIO
  OBJS	+=	$(MTOBJODIR)$(DIRSEP)sdl_con$(OFILE)
+ OBJS 	+=      $(MTOBJODIR)$(DIRSEP)pasteboard$(OFILE)
  NEED_BITMAP := 1
 else
  ifdef WITH_SDL
@@ -29,6 +30,7 @@ else
   OBJS	+=      $(MTOBJODIR)$(DIRSEP)sdlfuncs$(OFILE)
   ifeq ($(os),darwin)
    OBJS 	+=      $(MTOBJODIR)$(DIRSEP)SDLMain$(OFILE)
+   OBJS 	+=      $(MTOBJODIR)$(DIRSEP)pasteboard$(OFILE)
   endif
  endif
 endif
@@ -57,6 +59,10 @@ ifeq ($(os),darwin)
 $(MTOBJODIR)$(DIRSEP)SDLMain$(OFILE): SDLMain.m
 	@echo $(COMPILE_MSG) $<
 	$(QUIET)$(CC) $(CFLAGS) $(CCFLAGS) -o $@ -c $<
+
+$(MTOBJODIR)$(DIRSEP)pasteboard$(OFILE): pasteboard.m
+	@echo $(COMPILE_MSG) $<
+	$(QUIET)$(CC) $(CFLAGS) $(CCFLAGS) -o $@ -c $<
 endif
 
 ifeq ($(os),win32)

src/conio/pasteboard.h

+#ifndef _PASTEBOARD_H_
+#define _PASTEBOARD_H_
+
+void OSX_copytext(const char *text);
+char *OSX_getcliptext(void);
+
+#endif

src/conio/pasteboard.m

+#import <Foundation/Foundation.h>
+#import <Cocoa/Cocoa.h>
+
+#include <stddef.h>
+
+void OSX_copytext(const char *text)
+{
+	NSString *cp = [NSString stringWithCString:text encoding:NSUTF8StringEncoding];
+	if (cp != nil) {
+		NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
+		[pasteboard clearContents];
+		NSArray *copiedObjects = [NSArray arrayWithObject:cp];
+		[pasteboard writeObjects:copiedObjects];
+	}
+}
+
+char *OSX_getcliptext(void)
+{
+	NSPasteboard *pasteboard = [NSPasteboard generalPasteboard];
+	NSArray *classArray = [NSArray arrayWithObject:[NSString class]];
+    NSDictionary *options = [NSDictionary dictionary];
+	BOOL ok = [pasteboard canReadObjectForClasses:classArray options:options];
+	if (ok) {
+		NSArray *objectsToPaste = [pasteboard readObjectsForClasses:classArray options:options];
+		NSString *ct = [objectsToPaste objectAtIndex:0];
+		if (ct != nil) {
+			const char *ptr = [ct cStringUsingEncoding:NSASCIIStringEncoding];
+			if (ptr)
+				return strdup(ptr);
+		}
+	}
+	return NULL;
+}