iOS copy/paste routines

Some basic iOS copy/paste sample code:

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#import "UIPasteboard.h"
 
void iphone_copy(char *text) {
  UIPasteboard *pb = [UIPasteboard generalPasteboard];
  NSString *nstext = [NSString stringWithCString:text encoding:NSUTF8StringEncoding];
  [pb setValue:nstext forPasteboardType:@"public.plain-text"];
}
 
const char *iphone_paste() {
  UIPasteboard *pb = [UIPasteboard generalPasteboard];
  NSString *nstext = [pb valueForPasteboardType:@"public.utf8-plain-text"];
  return [nstext cStringUsingEncoding:NSUTF8StringEncoding];
}