/*
* Copyright (c) 2008 - 2010
* Jonathan Schleifer <js@webkeks.org>
*
* All rights reserved.
*
* This file is part of ObjFW. It may be distributed under the terms of the
* Q Public License 1.0, which can be found in the file LICENSE included in
* the packaging of this file.
*/
#include "config.h"
#include <assert.h>
#include <string.h>
#import "OFXMLElement.h"
#import "OFString.h"
#import "OFArray.h"
#import "OFDictionary.h"
#import "OFXMLAttribute.h"
#import "OFAutoreleasePool.h"
#import "OFExceptions.h"
@implementation OFXMLElement
+ elementWithName: (OFString*)name_
{
return [[[self alloc] initWithName: name_] autorelease];
}
+ elementWithName: (OFString*)name
stringValue: (OFString*)stringval
{
return [[[self alloc] initWithName: name
stringValue: stringval] autorelease];
}
+ elementWithName: (OFString*)name
namespace: (OFString*)ns
{
return [[[self alloc] initWithName: name
namespace: ns] autorelease];
}
+ elementWithName: (OFString*)name
namespace: (OFString*)ns
stringValue: (OFString*)stringval
{
return [[[self alloc] initWithName: name
namespace: ns
stringValue: stringval] autorelease];
}
+ elementWithText: (OFString*)text
{
return [[[self alloc] initWithText: text] autorelease];
}
+ elementWithComment: (OFString*)comment
{
return [[[self alloc] initWithComment: comment] autorelease];
}
- init
{
@throw [OFNotImplementedException newWithClass: isa
selector: _cmd];
}
- initWithName: (OFString*)name_
{
return [self initWithName: name_
namespace: nil
stringValue: nil];
}
- initWithName: (OFString*)name_
stringValue: (OFString*)stringval
{
return [self initWithName: name_
namespace: nil
stringValue: stringval];
}
- initWithName: (OFString*)name_
namespace: (OFString*)ns
{
return [self initWithName: name_
namespace: ns
stringValue: nil];
}
- initWithName: (OFString*)name_
namespace: (OFString*)ns
stringValue: (OFString*)stringval
{
self = [super init];
name = [name_ copy];
namespace = [ns copy];
if (stringval != nil) {
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];;
[self addChild: [OFXMLElement elementWithText: stringval]];
[pool release];
}
namespaces = [[OFMutableDictionary alloc] initWithKeysAndObjects:
@"http://www.w3.org/XML/1998/namespace", @"xml",
@"http://www.w3.org/2000/xmlns/", @"xmlns", nil];
return self;
}
- initWithText: (OFString*)text_
{
self = [super init];
@try {
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
text = [[text_ stringByXMLEscaping] retain];
[pool release];
} @catch (OFException *e) {
[self dealloc];
@throw e;
}
return self;
}
- initWithComment: (OFString*)comment_
{
self = [super init];
@try {
comment = [[OFMutableString alloc] initWithString: @"<!--"];
[comment appendString: comment_];
[comment appendString: @"-->"];
} @catch (OFException *e) {
[self dealloc];
@throw e;
}
return self;
}
- (OFString*)_stringWithParentNamespaces: (OFDictionary*)parent_namespaces
parentDefaultNamespace: (OFString*)parent_default_ns
{
OFAutoreleasePool *pool, *pool2;
char *str_c;
size_t len, i, j, attrs_count;
OFString *prefix = nil;
OFXMLAttribute **attrs_carray;
OFString *ret, *tmp;
OFMutableDictionary *all_namespaces;
OFString *def_ns;
if (text != nil)
return [[text retain] autorelease];
if (comment != nil)
return [[comment retain] autorelease];
pool = [[OFAutoreleasePool alloc] init];
def_ns = (defaultNamespace != nil
? defaultNamespace : parent_default_ns);
if (parent_namespaces != nil) {
OFEnumerator *key_enum = [namespaces keyEnumerator];
OFEnumerator *obj_enum = [namespaces objectEnumerator];
id key, obj;
all_namespaces = [[parent_namespaces mutableCopy] autorelease];
while ((key = [key_enum nextObject]) != nil &&
(obj = [obj_enum nextObject]) != nil)
[all_namespaces setObject: obj
forKey: key];
} else
all_namespaces = namespaces;
i = 0;
len = [name cStringLength] + 3;
str_c = [self allocMemoryWithSize: len];
/* Start of tag */
str_c[i++] = '<';
if ((namespace == nil && def_ns != nil) ||
(namespace != nil && def_ns == nil) ||
(namespace != nil && ![namespace isEqual: def_ns])) {
if ((prefix = [all_namespaces objectForKey:
(namespace != nil ? namespace : (OFString*)@"")]) == nil)
@throw [OFUnboundNamespaceException
newWithClass: isa
namespace: namespace];
len += [prefix cStringLength] + 1;
@try {
str_c = [self resizeMemory: str_c
toSize: len];
} @catch (OFException *e) {
[self freeMemory: str_c];
@throw e;
}
memcpy(str_c + i, [prefix cString],
[prefix cStringLength]);
i += [prefix cStringLength];
str_c[i++] = ':';
}
memcpy(str_c + i, [name cString], [name cStringLength]);
i += [name cStringLength];
/* Attributes */
attrs_carray = [attributes cArray];
attrs_count = [attributes count];
pool2 = [[OFAutoreleasePool alloc] init];
for (j = 0; j < attrs_count; j++) {
OFString *attr_name = [attrs_carray[j] name];
OFString *attr_prefix = nil;
tmp = [[attrs_carray[j] stringValue] stringByXMLEscaping];
if (([attrs_carray[j] namespace] == nil && namespace != nil) ||
([attrs_carray[j] namespace] != nil && namespace == nil) ||
([attrs_carray[j] namespace] != nil &&
![[attrs_carray[j] namespace] isEqual: namespace]))
if ((attr_prefix = [all_namespaces
objectForKey: [attrs_carray[j] namespace]]) == nil)
@throw [OFUnboundNamespaceException
newWithClass: isa
namespace: [attrs_carray[j] namespace]];
len += [attr_name cStringLength] +
(attr_prefix != nil ? [attr_prefix cStringLength] + 1 : 0) +
[tmp cStringLength] + 4;
@try {
str_c = [self resizeMemory: str_c
toSize: len];
} @catch (OFException *e) {
[self freeMemory: str_c];
@throw e;
}
str_c[i++] = ' ';
if (attr_prefix != nil) {
memcpy(str_c + i, [attr_prefix cString],
[attr_prefix cStringLength]);
i += [attr_prefix cStringLength];
str_c[i++] = ':';
}
memcpy(str_c + i, [attr_name cString],
[attr_name cStringLength]);
i += [attr_name cStringLength];
str_c[i++] = '=';
str_c[i++] = '\'';
memcpy(str_c + i, [tmp cString], [tmp cStringLength]);
i += [tmp cStringLength];
str_c[i++] = '\'';
[pool2 releaseObjects];
}
/* Childen */
if (children != nil) {
OFXMLElement **children_carray = [children cArray];
size_t children_count = [children count];
IMP append;
tmp = [OFMutableString string];
append = [tmp methodForSelector:
@selector(appendCStringWithoutUTF8Checking:)];
for (j = 0; j < children_count; j++)
append(tmp, @selector(
appendCStringWithoutUTF8Checking:),
[[children_carray[j]
_stringWithParentNamespaces: all_namespaces
parentDefaultNamespace: defaultNamespace] cString]);
len += [tmp cStringLength] + [name cStringLength] + 2;
@try {
str_c = [self resizeMemory: str_c
toSize: len];
} @catch (OFException *e) {
[self freeMemory: str_c];
@throw e;
}
str_c[i++] = '>';
memcpy(str_c + i, [tmp cString], [tmp cStringLength]);
i += [tmp cStringLength];
str_c[i++] = '<';
str_c[i++] = '/';
if (prefix != nil) {
len += [prefix cStringLength] + 1;
@try {
str_c = [self resizeMemory: str_c
toSize: len];
} @catch (OFException *e) {
[self freeMemory: str_c];
@throw e;
}
memcpy(str_c + i, [prefix cString],
[prefix cStringLength]);
i += [prefix cStringLength];
str_c[i++] = ':';
}
memcpy(str_c + i, [name cString], [name cStringLength]);
i += [name cStringLength];
} else
str_c[i++] = '/';
str_c[i++] = '>';
assert(i == len);
[pool release];
@try {
ret = [OFString stringWithCString: str_c
length: len];
} @finally {
[self freeMemory: str_c];
}
return ret;
}
- (OFString*)string
{
return [self _stringWithParentNamespaces: nil
parentDefaultNamespace: nil];
}
- (void)addAttribute: (OFXMLAttribute*)attr
{
if (name == nil)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
if (attributes == nil)
attributes = [[OFMutableArray alloc] init];
/* FIXME: Prevent having it twice! */
[attributes addObject: attr];
}
- (void)addAttributeWithName: (OFString*)name_
stringValue: (OFString*)value
{
OFAutoreleasePool *pool;
if (name == nil)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
pool = [[OFAutoreleasePool alloc] init];
[self addAttribute: [OFXMLAttribute attributeWithName: name_
namespace: nil
stringValue: value]];
[pool release];
}
- (void)addAttributeWithName: (OFString*)name_
namespace: (OFString*)ns
stringValue: (OFString*)value
{
OFAutoreleasePool *pool;
if (name == nil)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
pool = [[OFAutoreleasePool alloc] init];
[self addAttribute: [OFXMLAttribute attributeWithName: name_
namespace: ns
stringValue: value]];
[pool release];
}
/* TODO: Replace attribute */
/* TODO: Remove attribute */
- (void)setPrefix: (OFString*)prefix
forNamespace: (OFString*)ns
{
if (name == nil || prefix == nil || [prefix isEqual: @""])
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
if (ns == nil)
ns = @"";
[namespaces setObject: prefix
forKey: ns];
}
- (OFString*)defaultNamespace
{
if (name == nil)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
return [[defaultNamespace retain] autorelease];
}
- (void)setDefaultNamespace: (OFString*)ns
{
if (name == nil)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
OFString *old = defaultNamespace;
defaultNamespace = [ns copy];
[old release];
}
- (void)addChild: (OFXMLElement*)child
{
if (name == nil)
@throw [OFInvalidArgumentException newWithClass: isa
selector: _cmd];
if (children == nil)
children = [[OFMutableArray alloc] init];
[children addObject: child];
}
- (void)dealloc
{
[name release];
[namespace release];
[attributes release];
[namespaces release];
[children release];
[text release];
[comment release];
[super dealloc];
}
@end