diff options
Diffstat (limited to 'SBJsonParser.m')
-rwxr-xr-x | SBJsonParser.m | 104 |
1 files changed, 104 insertions, 0 deletions
diff --git a/SBJsonParser.m b/SBJsonParser.m new file mode 100755 index 0000000..6f2e26b --- /dev/null +++ b/SBJsonParser.m @@ -0,0 +1,104 @@ +/* + Copyright (C) 2009,2010 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 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 OWNER 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 "SBJsonParser.h" +#import "SBJsonStreamParser.h" +#import "SBJsonStreamParserAdapter.h" +#import "SBJsonStreamParserAccumulator.h" + +@implementation SBJsonParser + +@synthesize maxDepth; +@synthesize error; + +- (id)init { + self = [super init]; + if (self) + self.maxDepth = 32u; + return self; +} + +- (void)dealloc { + [error release]; + [super dealloc]; +} + +#pragma mark Methods + +- (id)objectWithData:(NSData *)data { + + if (!data) { + self.error = @"Input was 'nil'"; + return nil; + } + + SBJsonStreamParserAccumulator *accumulator = [[[SBJsonStreamParserAccumulator alloc] init] autorelease]; + + SBJsonStreamParserAdapter *adapter = [[[SBJsonStreamParserAdapter alloc] init] autorelease]; + adapter.delegate = accumulator; + + SBJsonStreamParser *parser = [[[SBJsonStreamParser alloc] init] autorelease]; + parser.maxDepth = self.maxDepth; + parser.delegate = adapter; + + switch ([parser parse:data]) { + case SBJsonStreamParserComplete: + return accumulator.value; + break; + + case SBJsonStreamParserWaitingForData: + self.error = @"Unexpected end of input"; + break; + + case SBJsonStreamParserError: + self.error = parser.error; + break; + } + + return nil; +} + +- (id)objectWithString:(NSString *)repr { + return [self objectWithData:[repr dataUsingEncoding:NSUTF8StringEncoding]]; +} + +- (id)objectWithString:(NSString*)repr error:(NSError**)error_ { + id tmp = [self objectWithString:repr]; + if (tmp) + return tmp; + + if (error_) { + NSDictionary *ui = [NSDictionary dictionaryWithObjectsAndKeys:error, NSLocalizedDescriptionKey, nil]; + *error_ = [NSError errorWithDomain:@"org.brautaset.SBJsonParser.ErrorDomain" code:0 userInfo:ui]; + } + + return nil; +} + +@end |