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/**
ReadlineTranscript.m
StepTalk simple transcript
Copyright (c) 2002 Free Software Foundation
Written by: Stefan Urbanek <urbanek@host.sk>
Date: 2001 Apr 13
This file is part of the StepTalk project.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#import "ReadlineTranscript.h"
#import <Foundation/NSValue.h>
#import <Foundation/NSString.h>
#include <stdio.h>
#include <readline/readline.h>
static Class NSString_class;
static Class NSNumber_class;
static ReadlineTranscript *sharedTranscript;
@implementation ReadlineTranscript:NSObject
+ (void)initialize
{
NSString_class = [NSString class];
NSNumber_class = [NSNumber class];
}
+ sharedTranscript
{
if(!sharedTranscript)
{
sharedTranscript = [[ReadlineTranscript alloc] init];
}
return sharedTranscript;
}
- show:(id)anObject
{
NSString *string;
if( [anObject isKindOfClass:NSString_class] )
{
string = anObject;
}
else if ( [anObject isKindOfClass:NSNumber_class] )
{
string = [anObject stringValue];
}
else
{
string = [anObject description];
}
printf("%s", [string cString]);
return self;
}
- showLine:(id)anObject
{
[self show:anObject];
putchar('\n');
return self;
}
-(NSString*)readLine:(NSString*)prompt
{
NSString *resret=nil;
char *res;
res = readline([prompt cString]);
if (res)
{
resret = [[NSString alloc] initWithCStringNoCopy: res
length: strlen(res)
freeWhenDone: YES];
}
return AUTORELEASE(resret);
}
@end
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