This repository has been archived by the owner on Apr 29, 2022. It is now read-only.
forked from itod/parsekit
-
Notifications
You must be signed in to change notification settings - Fork 0
/
PKTokenArraySource.m
85 lines (67 loc) · 2.06 KB
/
PKTokenArraySource.m
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
// Copyright 2010 Todd Ditchendorf
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#import <ParseKit/PKTokenArraySource.h>
#import <ParseKit/PKToken.h>
#import <ParseKit/PKTokenizer.h>
@interface PKTokenArraySource ()
@property (nonatomic, retain) PKTokenizer *tokenizer;
@property (nonatomic, retain) NSString *delimiter;
@property (nonatomic, retain) PKToken *nextToken;
@end
@implementation PKTokenArraySource
- (id)init {
return [self initWithTokenizer:nil delimiter:nil];
}
- (id)initWithTokenizer:(PKTokenizer *)t delimiter:(NSString *)s {
NSParameterAssert(t);
NSParameterAssert(s);
if (self = [super init]) {
self.tokenizer = t;
self.delimiter = s;
}
return self;
}
- (void)dealloc {
self.tokenizer = nil;
self.delimiter = nil;
self.nextToken = nil;
[super dealloc];
}
- (BOOL)hasMore {
if (!nextToken) {
self.nextToken = [tokenizer nextToken];
}
return ([PKToken EOFToken] != nextToken);
}
- (NSArray *)nextTokenArray {
if (![self hasMore]) {
return nil;
}
NSMutableArray *res = [NSMutableArray arrayWithObject:nextToken];
self.nextToken = nil;
PKToken *eof = [PKToken EOFToken];
PKToken *tok = nil;
while ((tok = [tokenizer nextToken]) != eof) {
if ([tok.stringValue isEqualToString:delimiter]) {
break; // discard delimiter tok
}
[res addObject:tok];
}
//return [[res copy] autorelease];
return res; // optimization
}
@synthesize tokenizer;
@synthesize delimiter;
@synthesize nextToken;
@end