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Text_Console.m
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1992-08-24
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//
// A category on Text to allow for formated printf input.
// Sam Streeper
// Copyright NeXT Computer, Inc 1992 All Rights Reserved
//
// Created 8-24-92
//
// You may freely copy, distribute and reuse the code in this example.
// NeXT disclaims any warranty of any kind, expressed or implied, as to
// its fitness for any particular use.
//
#import "Text_Console.h"
#import <stdarg.h>
@implementation Text(Text_Console)
#define BUFFERSIZE 512
- (int) printf:(const char *) format, ...
{
int result, length = [self textLength];
char buffer[BUFFERSIZE];
va_list ap;
va_start(ap, format);
result = vsprintf(buffer, format, ap);
va_end(ap);
// this is how one puts text into a Text object and goes to that selection.
// put the cursor in the very last location and push the buffer in
[[self setSel:length :length] replaceSel:buffer];
// scroll so that it is visible and redisplay
[[self scrollSelToVisible] display];
return result;
}
@end