214 lines
6.7 KiB
Objective-C
214 lines
6.7 KiB
Objective-C
/*
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Copyright (C) 2007-2009 Stig Brautaset. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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* Neither the name of the author nor the names of its contributors may be used
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to endorse or promote products derived from this software without specific
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prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#import "SBJSON.h"
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@implementation SBJSON
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- (id)init {
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self = [super init];
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if (self) {
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jsonWriter = [SBJsonWriter new];
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jsonParser = [SBJsonParser new];
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[self setMaxDepth:512];
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}
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return self;
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}
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- (void)dealloc {
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[jsonWriter release];
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[jsonParser release];
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[super dealloc];
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}
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#pragma mark Writer
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- (NSString *)stringWithObject:(id)obj {
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NSString *repr = [jsonWriter stringWithObject:obj];
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if (repr)
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return repr;
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[errorTrace release];
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errorTrace = [[jsonWriter errorTrace] mutableCopy];
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return nil;
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}
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/**
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Returns a string containing JSON representation of the passed in value, or nil on error.
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If nil is returned and @p error is not NULL, @p *error can be interrogated to find the cause of the error.
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@param value any instance that can be represented as a JSON fragment
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@param allowScalar wether to return json fragments for scalar objects
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@param error used to return an error by reference (pass NULL if this is not desired)
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@deprecated Given we bill ourselves as a "strict" JSON library, this method should be removed.
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*/
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- (NSString*)stringWithObject:(id)value allowScalar:(BOOL)allowScalar error:(NSError**)error {
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NSString *json = allowScalar ? [jsonWriter stringWithFragment:value] : [jsonWriter stringWithObject:value];
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if (json)
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return json;
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[errorTrace release];
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errorTrace = [[jsonWriter errorTrace] mutableCopy];
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if (error)
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*error = [errorTrace lastObject];
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return nil;
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}
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/**
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Returns a string containing JSON representation of the passed in value, or nil on error.
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If nil is returned and @p error is not NULL, @p error can be interrogated to find the cause of the error.
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@param value any instance that can be represented as a JSON fragment
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@param error used to return an error by reference (pass NULL if this is not desired)
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@deprecated Given we bill ourselves as a "strict" JSON library, this method should be removed.
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*/
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- (NSString*)stringWithFragment:(id)value error:(NSError**)error {
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return [self stringWithObject:value
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allowScalar:YES
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error:error];
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}
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/**
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Returns a string containing JSON representation of the passed in value, or nil on error.
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If nil is returned and @p error is not NULL, @p error can be interrogated to find the cause of the error.
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@param value a NSDictionary or NSArray instance
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@param error used to return an error by reference (pass NULL if this is not desired)
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*/
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- (NSString*)stringWithObject:(id)value error:(NSError**)error {
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return [self stringWithObject:value
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allowScalar:NO
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error:error];
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}
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#pragma mark Parsing
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- (id)objectWithString:(NSString *)repr {
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id obj = [jsonParser objectWithString:repr];
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if (obj)
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return obj;
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[errorTrace release];
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errorTrace = [[jsonParser errorTrace] mutableCopy];
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return nil;
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}
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/**
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Returns the object represented by the passed-in string or nil on error. The returned object can be
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a string, number, boolean, null, array or dictionary.
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@param value the json string to parse
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@param allowScalar whether to return objects for JSON fragments
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@param error used to return an error by reference (pass NULL if this is not desired)
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@deprecated Given we bill ourselves as a "strict" JSON library, this method should be removed.
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*/
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- (id)objectWithString:(id)value allowScalar:(BOOL)allowScalar error:(NSError**)error {
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id obj = allowScalar ? [jsonParser fragmentWithString:value] : [jsonParser objectWithString:value];
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if (obj)
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return obj;
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[errorTrace release];
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errorTrace = [[jsonParser errorTrace] mutableCopy];
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if (error)
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*error = [errorTrace lastObject];
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return nil;
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}
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/**
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Returns the object represented by the passed-in string or nil on error. The returned object can be
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a string, number, boolean, null, array or dictionary.
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@param repr the json string to parse
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@param error used to return an error by reference (pass NULL if this is not desired)
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@deprecated Given we bill ourselves as a "strict" JSON library, this method should be removed.
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*/
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- (id)fragmentWithString:(NSString*)repr error:(NSError**)error {
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return [self objectWithString:repr
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allowScalar:YES
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error:error];
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}
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/**
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Returns the object represented by the passed-in string or nil on error. The returned object
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will be either a dictionary or an array.
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@param repr the json string to parse
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@param error used to return an error by reference (pass NULL if this is not desired)
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*/
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- (id)objectWithString:(NSString*)repr error:(NSError**)error {
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return [self objectWithString:repr
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allowScalar:NO
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error:error];
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}
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#pragma mark Properties - parsing
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- (unsigned int)maxDepth {
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return [jsonParser maxDepth];
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}
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- (void)setMaxDepth:(unsigned int)d {
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[jsonWriter setMaxDepth:d];
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[jsonParser setMaxDepth:d];
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}
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#pragma mark Properties - writing
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- (BOOL)humanReadable {
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return jsonWriter.humanReadable;
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}
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- (void)setHumanReadable:(BOOL)x {
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jsonWriter.humanReadable = x;
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}
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- (BOOL)sortKeys {
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return jsonWriter.sortKeys;
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}
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- (void)setSortKeys:(BOOL)x {
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jsonWriter.sortKeys = x;
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}
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@end
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