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/* -*- mode: objc; coding: utf-8 -*- */
/* Étoilisp/Mulklisp, a Common Lisp subset for the Étoilé runtime.
* Copyright (C) 2008 Matthias Andreas Benkard.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or (at
* your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#import "MLKDynamicContext.h"
#import "MLKInterpreter.h"
#import "MLKLexicalEnvironment.h"
#import "MLKPackage.h"
#import "MLKReadEvalPrintLoop.h"
#import "MLKReader.h"
#import "NSObject-MLKPrinting.h"
#import "runtime-compatibility.h"
#import <Foundation/NSAutoreleasePool.h>
#import <Foundation/NSException.h>
#import <Foundation/NSString.h>
#import <editline/history.h>
#import <editline/readline.h>
#import <histedit.h>
static int _argc;
static char **_argv;
static const char *prompt (EditLine *e) {
NS_DURING
{
MLKPackage *package = [[MLKDynamicContext currentContext]
valueForSymbol:[[MLKPackage
findPackage:@"COMMON-LISP"]
intern:@"*PACKAGE*"]];
return [[NSString stringWithFormat:@"%@> ", [package name]] UTF8String];
}
NS_HANDLER
{
printf ("Caught an unhandled exception.\nName: %s\nReason: %s\n",
[[localException name] UTF8String],
[[localException reason] UTF8String]);
return "> ";
}
NS_ENDHANDLER
}
@implementation MLKReadEvalPrintLoop : NSObject
+(void) run
{
EditLine *editline;
History *commands;
HistEvent event;
editline = el_init (_argv[0], stdin, stdout, stderr);
el_set (editline, EL_PROMPT, &prompt);
el_set (editline, EL_EDITOR, "emacs");
commands = history_init();
history (commands, &event, H_SETSIZE, 1000);
el_set (editline, EL_HIST, history, commands);
printf ("This is Toilet Lisp, version 0.0.1.\n");
printf ("Please make yourself at home.\n");
while (1)
{
const char *line;
ssize_t line_length;
line = el_gets (editline, &line_length);
if (line_length > 1)
{
NSAutoreleasePool *pool;
id result;
id code;
pool = [[NSAutoreleasePool alloc] init];
history (commands, &event, H_ENTER, line);
NS_DURING
{
code = [MLKReader readFromString:[NSString stringWithUTF8String:line]];
result = [MLKInterpreter eval:code
inLexicalContext:[MLKLexicalContext
globalContext]
withEnvironment:[MLKLexicalEnvironment
globalEnvironment]];
if (result)
printf ("%s\n", [[result descriptionForLisp] UTF8String]);
else
printf ("()\n");
}
NS_HANDLER
{
printf ("Caught an unhandled exception.\nName: %s\nReason: %s\n",
[[localException name] UTF8String],
[[localException reason] UTF8String]);
}
NS_ENDHANDLER
RELEASE (pool);
}
//free (line);
}
history_end (commands);
el_end (editline);
}
@end
int main (int argc, char **argv)
{
_argc = argc;
_argv = argv;
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
[MLKReadEvalPrintLoop run];
RELEASE (pool);
return 0;
}
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