ios_解析-SBJson

/* Copyright (C) 2009 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 <Foundation/Foundation.h> #import "SBJsonBase.h" /** @brief Options for the writer class. This exists so the SBJSON facade can implement the options in the writer without having to re-declare them. */ @protocol SBJsonWriter /** @brief Whether we are generating human-readable (multiline) JSON. Set whether or not to generate human-readable JSON. The default is NO, which produces JSON without any whitespace. (Except inside strings.) If set to YES, generates human-readable JSON with linebreaks after each array value and dictionary key/value pair, indented two spaces per nesting level. */ @property BOOL humanReadable; /** @brief Whether or not to sort the dictionary keys in the output. If this is set to YES, the dictionary keys in the JSON output will be in sorted order. (This is useful if you need to compare two structures, for example.) The default is NO. */ @property BOOL sortKeys; /** @brief Return JSON representation (or fragment) for the given object. Returns a string containing JSON representation of the passed in value, or nil on error. If nil is returned and @p error is not NULL, @p *error can be interrogated to find the cause of the error. @param value any instance that can be represented as a JSON fragment */ - (NSString*)stringWithObject:(id)value; @end /** @brief The JSON writer class. Objective-C types are mapped to JSON types in the following way: @li NSNull -> Null @li NSString -> String @li NSArray -> Array @li NSDictionary -> Object @li NSNumber (-initWithBool:) -> Boolean @li NSNumber -> Number In JSON the keys of an object must be strings. NSDictionary keys need not be, but attempting to convert an NSDictionary with non-string keys into JSON will throw an exception. NSNumber instances created with the +initWithBool: method are converted into the JSON boolean "true" and "false" values, and vice versa. Any other NSNumber instances are converted to a JSON number the way you would expect. */ @interface SBJsonWriter : SBJsonBase <SBJsonWriter> { @private BOOL sortKeys, humanReadable; } @end // don't use - exists for backwards compatibility. Will be removed in 2.3. @interface SBJsonWriter (Private) - (NSString*)stringWithFragment:(id)value; @end /** @brief Allows generation of JSON for otherwise unsupported classes. If you have a custom class that you want to create a JSON representation for you can implement this method in your class. It should return a representation of your object defined in terms of objects that can be translated into JSON. For example, a Person object might implement it like this: @code - (id)jsonProxyObject { return [NSDictionary dictionaryWithObjectsAndKeys: name, @"name", phone, @"phone", email, @"email", nil]; } @endcode */ @interface NSObject (SBProxyForJson) - (id)proxyForJson; @end