ObjFW  Check-in [eaa612ad50]

Overview
Comment:Add -[JSONRepresentationWithOptions:]

This also adds OF_JSON_REPRESENTATION_PRETTY.

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SHA3-256: eaa612ad50608d3090af0b7813833f1d9e8a8c1aef7b5808cf8808f470ee8ba9
User & Date: js on 2014-02-08 09:26:40
Other Links: manifest | tags
Context
2014-02-08
18:04
Add JSON5 output option check-in: e07fa89b44 user: js tags: trunk
09:26
Add -[JSONRepresentationWithOptions:] check-in: eaa612ad50 user: js tags: trunk
2014-02-05
09:02
Documentation improvements check-in: e96ab3a2be user: js tags: trunk
Changes
Hide Diffs Side-by-Side Diffs Ignore Whitespace Patch

Modified src/OFArray.m from [c05d529d81] to [ef5fe152e1].

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#import "autorelease.h"
#import "macros.h"

static struct {
	Class isa;
} placeholder;

@interface OFArray (OF_PRIVATE_CATEGORY)
- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth;
@end

@interface OFArray_placeholder: OFArray
@end

@implementation OFArray_placeholder
- init
{
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	objc_autoreleasePoolPop(pool);

	return [element autorelease];
}

- (OFString*)JSONRepresentation
{
	return [self OF_JSONRepresentationWithOptions: 0
						depth: 0];
}

- (OFString*)JSONRepresentationWithOptions: (int)options
{
	return [self OF_JSONRepresentationWithOptions: options
						depth: 0];
}

- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth
{
	OFMutableString *JSON = [OFMutableString stringWithString: @"["];
	void *pool = objc_autoreleasePoolPush();
	OFEnumerator *enumerator = [self objectEnumerator];
	id object;
	size_t i, count = [self count];

	if (options & OF_JSON_REPRESENTATION_PRETTY) {
	OFMutableString *JSON;
		OFMutableString *indentation = [OFMutableString string];

		for (i = 0; i < depth; i++)
			[indentation appendString: @"\t"];
	JSON = [[self componentsJoinedByString: @","
				 usingSelector: @selector(JSONRepresentation)]
	    mutableCopy];

		[JSON appendString: @"\n"];

		i = 0;
		while ((object = [enumerator nextObject]) != nil) {
			void *pool2 = objc_autoreleasePoolPush();

			[JSON appendString: indentation];
			[JSON appendString: @"\t"];
			[JSON appendString: [object
			    OF_JSONRepresentationWithOptions: options
						       depth: depth + 1]];

			if (++i < count)
	[JSON prependString: @"["];
	[JSON appendString: @"]"];
				[JSON appendString: @",\n"];
			else
				[JSON appendString: @"\n"];

			objc_autoreleasePoolPop(pool2);
		}

		[JSON appendString: indentation];
	} else {
		i = 0;
		while ((object = [enumerator nextObject]) != nil) {
			void *pool2 = objc_autoreleasePoolPush();

			[JSON appendString: [object
			    OF_JSONRepresentationWithOptions: options
						       depth: depth + 1]];

			if (++i < count)
				[JSON appendString: @","];

			objc_autoreleasePoolPop(pool2);
		}
	}

	[JSON appendString: @"]"];
	[JSON makeImmutable];

	objc_autoreleasePoolPop(pool);

	return [JSON autorelease];
	return JSON;
}

- (OFDataArray*)messagePackRepresentation
{
	OFDataArray *data;
	size_t i, count;
	void *pool;
︙

Modified src/OFDictionary.m from [6e104e4274] to [a7500a2644].

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#import "autorelease.h"
#import "macros.h"

static struct {
	Class isa;
} placeholder;

@interface OFDictionary (OF_PRIVATE_CATEGORY)
- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth;
@end

@interface OFDictionary_placeholder: OFDictionary
@end

@implementation OFDictionary_placeholder
- init
{
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	objc_autoreleasePoolPop(pool);

	return [element autorelease];
}

- (OFString*)JSONRepresentation
{
	return [self OF_JSONRepresentationWithOptions: 0
						depth: 0];
}

- (OFString*)JSONRepresentationWithOptions: (int)options
{
	return [self OF_JSONRepresentationWithOptions: options
						depth: 0];
}

- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth
{
	OFMutableString *JSON = [OFMutableString stringWithString: @"{"];
	void *pool = objc_autoreleasePoolPush();
	OFEnumerator *keyEnumerator = [self keyEnumerator];
	OFEnumerator *objectEnumerator = [self objectEnumerator];
	size_t i = 0, count = [self count];
	OFString *key;
	OFString *object;
	size_t i, count = [self count];
	id key, object;

	if (options & OF_JSON_REPRESENTATION_PRETTY) {
		OFMutableString *indentation = [OFMutableString string];

		for (i = 0; i < depth; i++)
			[indentation appendString: @"\t"];

		[JSON appendString: @"\n"];

		i = 0;
	while ((key = [keyEnumerator nextObject]) != nil &&
	    (object = [objectEnumerator nextObject]) != nil) {
		void *pool2 = objc_autoreleasePoolPush();
		while ((key = [keyEnumerator nextObject]) != nil &&
		    (object = [objectEnumerator nextObject]) != nil) {
			void *pool2 = objc_autoreleasePoolPush();

			[JSON appendString: indentation];
			[JSON appendString: @"\t"];
		[JSON appendString: [key JSONRepresentation]];
		[JSON appendString: @":"];
		[JSON appendString: [object JSONRepresentation]];
			[JSON appendString: [key
			    OF_JSONRepresentationWithOptions: options
						       depth: depth + 1]];
			[JSON appendString: @": "];
			[JSON appendString: [object
			    OF_JSONRepresentationWithOptions: options
						       depth: depth + 1]];

			if (++i < count)
				[JSON appendString: @",\n"];
			else
				[JSON appendString: @"\n"];

			objc_autoreleasePoolPop(pool2);
		}

		[JSON appendString: indentation];
	} else {
		i = 0;
		while ((key = [keyEnumerator nextObject]) != nil &&
		    (object = [objectEnumerator nextObject]) != nil) {
			void *pool2 = objc_autoreleasePoolPush();

			[JSON appendString: [key
			    OF_JSONRepresentationWithOptions: options
						       depth: depth + 1]];
			[JSON appendString: @":"];
			[JSON appendString: [object
			    OF_JSONRepresentationWithOptions: options
						       depth: depth + 1]];

		if (++i < count)
			[JSON appendString: @","];
			if (++i < count)
				[JSON appendString: @","];

		objc_autoreleasePoolPop(pool2);
			objc_autoreleasePoolPop(pool2);
		}
	}

	[JSON appendString: @"}"];
	[JSON makeImmutable];

	objc_autoreleasePoolPop(pool);
︙

Modified src/OFJSONRepresentation.h from [ee587b0093] to [25865c5918].

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 * Alternatively, it may be distributed under the terms of the GNU General
 * Public License, either version 2 or 3, which can be found in the file
 * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
 * file.
 */

@class OFString;

enum {
	OF_JSON_REPRESENTATION_PRETTY = 1
};

/*!
 * @brief A protocol implemented by classes that support encoding to a JSON
 *	  representation.
 *
 * @warning Although this method can be called directly on classes other than
 *	    OFArray and OFDictionary, this will generate invalid JSON, as JSON
 *	    requires all data to be encapsulated in an array or a dictionary!
 */
@protocol OFJSONRepresentation
/*!
 * @brief Returns the JSON representation of the object as a string.
 *
 * @return The JSON representation of the object as a string.
 * @return The JSON representation of the object as a string
 */
- (OFString*)JSONRepresentation;

/*!
 * @brief Returns the JSON representation of the object as a string.
 *
 * @param options The options to use when creating a JSON representation.@n
 *		  Possible values are:
 *		  Value                           | Description
 *		  --------------------------------|-------------------------
 *		  `OF_JSON_REPRESENTATION_PRETTY` | Optimize for readability
 *
 * @return The JSON representation of the object as a string
 */
- (OFString*)JSONRepresentationWithOptions: (int)options;
@end

Modified src/OFNull.m from [d6830b4626] to [3046b23b8f].

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#import "OFXMLElement.h"
#import "OFDataArray.h"

#import "OFInvalidArgumentException.h"

#import "autorelease.h"
#import "macros.h"

@interface OFNull (OF_PRIVATE_CATEGORY)
- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth;
@end

static OFNull *null = nil;

@implementation OFNull
+ (void)initialize
{
	null = [[self alloc] init];
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	objc_autoreleasePoolPop(pool);

	return [element autorelease];
}

- (OFString*)JSONRepresentation
{
	return [self OF_JSONRepresentationWithOptions: 0
						depth: 0];
}

- (OFString*)JSONRepresentationWithOptions: (int)options
{
	return [self OF_JSONRepresentationWithOptions: options
						depth: 0];
}

- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth
{
	return @"null";
}

- (OFDataArray*)messagePackRepresentation
{
	OFDataArray *data = [OFDataArray dataArrayWithItemSize: 1
︙

Modified src/OFNumber.m from [0561641365] to [12ac22c22b].

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	case OF_NUMBER_FLOAT:						\
		return [OFNumber numberWithFloat: _value.float_ o];	\
	case OF_NUMBER_DOUBLE:						\
		return [OFNumber numberWithDouble: _value.double_ o];	\
	default:							\
		@throw [OFInvalidFormatException exception];		\
	}

@interface OFNumber (OF_PRIVATE_CATEGORY)
- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth;
@end

@implementation OFNumber
+ (instancetype)numberWithBool: (bool)bool_
{
	return [[[self alloc] initWithBool: bool_] autorelease];
}
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	objc_autoreleasePoolPop(pool);

	return [element autorelease];
}

- (OFString*)JSONRepresentation
{
	return [self OF_JSONRepresentationWithOptions: 0
						depth: 0];
}

- (OFString*)JSONRepresentationWithOptions: (int)options
{
	return [self OF_JSONRepresentationWithOptions: options
						depth: 0];
}

- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth
{
	double doubleValue;

	if (_type == OF_NUMBER_BOOL)
		return (_value.bool_ ? @"true" : @"false");

	doubleValue = [self doubleValue];
︙

Modified src/OFString.m from [f9a79a3ca8] to [006b401a4b].

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@interface OFString (OF_PRIVATE_CATEGORY)
- (size_t)OF_getCString: (char*)cString
	      maxLength: (size_t)maxLength
	       encoding: (of_string_encoding_t)encoding
		  lossy: (bool)lossy;
- (const char*)OF_cStringWithEncoding: (of_string_encoding_t)encoding
				lossy: (bool)lossy;
- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth;
@end

extern bool of_unicode_to_iso_8859_15(const of_unichar_t*, char*, size_t, bool);
extern bool of_unicode_to_windows_1252(const of_unichar_t*, char*, size_t,
    bool);
extern bool of_unicode_to_codepage_437(const of_unichar_t*, char*, size_t,
    bool);
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	objc_autoreleasePoolPop(pool);

	return [element autorelease];
}

- (OFString*)JSONRepresentation
{
	return [self OF_JSONRepresentationWithOptions: 0
						depth: 0];
}

- (OFString*)JSONRepresentationWithOptions: (int)options
{
	return [self OF_JSONRepresentationWithOptions: options
						depth: 0];
}

- (OFString*)OF_JSONRepresentationWithOptions: (int)options
					depth: (size_t)depth
{
	OFMutableString *JSON = [[self mutableCopy] autorelease];

	/* FIXME: This is slow! Write it in pure C! */
	[JSON replaceOccurrencesOfString: @"\\"
			      withString: @"\\\\"];
	[JSON replaceOccurrencesOfString: @"\""
︙

Modified tests/OFJSONTests.m from [d6147f879d] to [37da130670].

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	    nil];

	TEST(@"-[JSONValue #1]", [[s JSONValue] isEqual: d])

	TEST(@"-[JSONRepresentation]", [[d JSONRepresentation] isEqual:
	    @"{\"x\":[0.5,15,null,\"foo\",false],\"foo\":\"ba\\r\"}"])

	TEST(@"OF_JSON_REPRESENTATION_PRETTY",
	    [[d JSONRepresentationWithOptions: OF_JSON_REPRESENTATION_PRETTY]
	    isEqual: @"{\n\t\"x\": [\n\t\t0.5,\n\t\t15,\n\t\tnull,\n\t\t"
		     @"\"foo\",\n\t\tfalse\n\t],\n\t\"foo\": \"ba\\r\"\n}"])

	EXPECT_EXCEPTION(@"-[JSONValue #2]", OFInvalidJSONException,
	    [@"{" JSONValue])
	EXPECT_EXCEPTION(@"-[JSONValue #3]", OFInvalidJSONException,
	    [@"]" JSONValue])
	EXPECT_EXCEPTION(@"-[JSONValue #4]", OFInvalidJSONException,
	    [@"bar" JSONValue])
	EXPECT_EXCEPTION(@"-[JSONValue #5]", OFInvalidJSONException,
	    [@"[\"a\" \"b\"]" JSONValue])

	[pool drain];
}
@end

Fossil 2.23 [47362306a7] 2023-11-01 18:56:47
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