Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

356 lines (247 sloc) 8.118 kb
/*
Copyright (c) 2010, Stig Brautaset.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
Neither the name of the the author nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "SBJsonStreamParserState.h"
#import "SBJsonStreamParser.h"
#define SINGLETON \
+ (id)sharedInstance { \
static id state; \
if (!state) state = [[self alloc] init]; \
return state; \
}
@implementation SBJsonStreamParserState
+ (id)sharedInstance { return nil; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
return NO;
}
- (SBJsonStreamParserStatus)parserShouldReturn:(SBJsonStreamParser*)parser {
return SBJsonStreamParserWaitingForData;
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {}
- (BOOL)needKey {
return NO;
}
- (NSString*)name {
return @"<aaiie!>";
}
- (BOOL)isError {
return NO;
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateStart
SINGLETON
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
return token == sbjson_token_array_start || token == sbjson_token_object_start;
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
SBJsonStreamParserState *state = nil;
switch (tok) {
case sbjson_token_array_start:
state = [SBJsonStreamParserStateArrayStart sharedInstance];
break;
case sbjson_token_object_start:
state = [SBJsonStreamParserStateObjectStart sharedInstance];
break;
case sbjson_token_array_end:
case sbjson_token_object_end:
if (parser.supportMultipleDocuments)
state = parser.state;
else
state = [SBJsonStreamParserStateComplete sharedInstance];
break;
case sbjson_token_eof:
return;
default:
state = [SBJsonStreamParserStateError sharedInstance];
break;
}
parser.state = state;
}
- (NSString*)name { return @"before outer-most array or object"; }
@end
#pragma mark -
@implementation SBJsonStreamParserStateComplete
SINGLETON
- (NSString*)name { return @"after outer-most array or object"; }
- (SBJsonStreamParserStatus)parserShouldReturn:(SBJsonStreamParser*)parser {
return SBJsonStreamParserComplete;
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateError
SINGLETON
- (NSString*)name { return @"in error"; }
- (SBJsonStreamParserStatus)parserShouldReturn:(SBJsonStreamParser*)parser {
return SBJsonStreamParserError;
}
- (BOOL)isError {
return YES;
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateObjectStart
SINGLETON
- (NSString*)name { return @"at beginning of object"; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
switch (token) {
case sbjson_token_object_end:
case sbjson_token_string:
return YES;
break;
default:
return NO;
break;
}
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
parser.state = [SBJsonStreamParserStateObjectGotKey sharedInstance];
}
- (BOOL)needKey {
return YES;
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateObjectGotKey
SINGLETON
- (NSString*)name { return @"after object key"; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
return token == sbjson_token_keyval_separator;
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
parser.state = [SBJsonStreamParserStateObjectSeparator sharedInstance];
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateObjectSeparator
SINGLETON
- (NSString*)name { return @"as object value"; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
switch (token) {
case sbjson_token_object_start:
case sbjson_token_array_start:
case sbjson_token_true:
case sbjson_token_false:
case sbjson_token_null:
case sbjson_token_number:
case sbjson_token_string:
return YES;
break;
default:
return NO;
break;
}
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
parser.state = [SBJsonStreamParserStateObjectGotValue sharedInstance];
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateObjectGotValue
SINGLETON
- (NSString*)name { return @"after object value"; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
switch (token) {
case sbjson_token_object_end:
case sbjson_token_separator:
return YES;
break;
default:
return NO;
break;
}
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
parser.state = [SBJsonStreamParserStateObjectNeedKey sharedInstance];
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateObjectNeedKey
SINGLETON
- (NSString*)name { return @"in place of object key"; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
return sbjson_token_string == token;
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
parser.state = [SBJsonStreamParserStateObjectGotKey sharedInstance];
}
- (BOOL)needKey {
return YES;
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateArrayStart
SINGLETON
- (NSString*)name { return @"at array start"; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
switch (token) {
case sbjson_token_object_end:
case sbjson_token_keyval_separator:
case sbjson_token_separator:
return NO;
break;
default:
return YES;
break;
}
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
parser.state = [SBJsonStreamParserStateArrayGotValue sharedInstance];
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateArrayGotValue
SINGLETON
- (NSString*)name { return @"after array value"; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
return token == sbjson_token_array_end || token == sbjson_token_separator;
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
if (tok == sbjson_token_separator)
parser.state = [SBJsonStreamParserStateArrayNeedValue sharedInstance];
}
@end
#pragma mark -
@implementation SBJsonStreamParserStateArrayNeedValue
SINGLETON
- (NSString*)name { return @"as array value"; }
- (BOOL)parser:(SBJsonStreamParser*)parser shouldAcceptToken:(sbjson_token_t)token {
switch (token) {
case sbjson_token_array_end:
case sbjson_token_keyval_separator:
case sbjson_token_object_end:
case sbjson_token_separator:
return NO;
break;
default:
return YES;
break;
}
}
- (void)parser:(SBJsonStreamParser*)parser shouldTransitionTo:(sbjson_token_t)tok {
parser.state = [SBJsonStreamParserStateArrayGotValue sharedInstance];
}
@end
Jump to Line
Something went wrong with that request. Please try again.