1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
|
/* -*- mode: objc; coding: utf-8 -*- */
/* Toilet Lisp, 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 "MLKListenerController.h"
#import "MLKDynamicContext.h"
#import "MLKPackage.h"
#import "MLKReader.h"
#import "util.h"
@implementation MLKListenerController
- (IBAction)submit:(id)sender
{
id object;
NSDictionary *attrs;
NSString *input = [inputField stringValue];
MLKPackage *package;
[submitButton setEnabled:NO];
NS_DURING
{
object = [MLKReader readFromString:input];
}
NS_HANDLER
{
// A parsing error. Beep and let the user try again.
// XXX Maybe the status line could be made to provide more information on the error.
NSBeep();
[submitButton setEnabled:YES];
[inputField selectText:self];
return;
}
NS_ENDHANDLER;
[inputField setStringValue:@""];
package = [[MLKDynamicContext currentContext]
valueForSymbol:[[MLKPackage findPackage:@"COMMON-LISP"]
intern:@"*PACKAGE*"]];
NSMutableAttributedString *text = [outputTextView textStorage];
[text beginEditing];
attrs = [NSDictionary dictionaryWithObjectsAndKeys:
[NSColor blueColor], NSForegroundColorAttributeName, nil];
NSString *barePrompt = [NSString stringWithFormat:@"%@> ", [package name]];
NSAttributedString *prompt =
LAUTORELEASE ([[NSAttributedString alloc] initWithString:barePrompt
attributes:attrs]);
[text appendAttributedString:prompt];
attrs = [NSDictionary dictionaryWithObjectsAndKeys:
[NSColor blackColor], NSForegroundColorAttributeName, nil];
NSAttributedString *inputFeedback =
LAUTORELEASE ([[NSAttributedString alloc] initWithString:input attributes:attrs]);
[text appendAttributedString:inputFeedback];
[[text mutableString] appendString:@"\n"];
[text endEditing];
[statusText setStringValue:@"Compiling and executing."];
NS_DURING
{
// ...
}
NS_HANDLER
{
// ...
}
NS_ENDHANDLER
[statusText setStringValue:@"Ready."];
[text beginEditing];
attrs = [NSDictionary dictionaryWithObjectsAndKeys:
[NSColor purpleColor], NSForegroundColorAttributeName, nil];
NSAttributedString *response =
LAUTORELEASE ([[NSAttributedString alloc] initWithString:MLKPrintToString(object)
attributes:attrs]);
[text appendAttributedString:response];
[[text mutableString] appendString:@"\n"];
[text endEditing];
[submitButton setEnabled:YES];
}
@end
|
