/*
* Copyright (c) 2008-2021 Jonathan Schleifer <js@nil.im>
*
* 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.QPL included in
* the packaging of this file.
*
* 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.
*/
#include "config.h"
#import "OFXMLElementBuilder.h"
#import "OFArray.h"
#import "OFXMLAttribute.h"
#import "OFXMLCDATA.h"
#import "OFXMLCharacters.h"
#import "OFXMLComment.h"
#import "OFXMLElement.h"
#import "OFXMLParser.h"
#import "OFXMLProcessingInstruction.h"
#import "OFMalformedXMLException.h"
@implementation OFXMLElementBuilder
@synthesize delegate = _delegate;
+ (instancetype)builder
{
return [[[self alloc] init] autorelease];
}
- (instancetype)init
{
self = [super init];
@try {
_stack = [[OFMutableArray alloc] init];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_stack release];
[super dealloc];
}
- (void)parser: (OFXMLParser *)parser
foundProcessingInstructionWithTarget: (OFString *)target
data: (OFString *)data
{
OFXMLProcessingInstruction *node = [OFXMLProcessingInstruction
processingInstructionWithTarget: target
data: data];
OFXMLElement *parent = _stack.lastObject;
if (parent != nil)
[parent addChild: node];
else if ([_delegate respondsToSelector:
@selector(elementBuilder:didBuildParentlessNode:)])
[_delegate elementBuilder: self didBuildParentlessNode: node];
}
- (void)parser: (OFXMLParser *)parser
didStartElement: (OFString *)name
prefix: (OFString *)prefix
namespace: (OFString *)namespace
attributes: (OFArray *)attributes
{
OFXMLElement *element = [OFXMLElement elementWithName: name
namespace: namespace];
for (OFXMLAttribute *attribute in attributes) {
if (attribute.namespace == nil &&
[attribute.name isEqual: @"xmlns"])
continue;
if ([attribute.namespace isEqual:
@"http://www.w3.org/2000/xmlns/"])
[element setPrefix: attribute.name
forNamespace: attribute.stringValue];
[element addAttribute: attribute];
}
[_stack.lastObject addChild: element];
[_stack addObject: element];
}
- (void)parser: (OFXMLParser *)parser
didEndElement: (OFString *)name
prefix: (OFString *)prefix
namespace: (OFString *)namespace
{
switch (_stack.count) {
case 0:
if ([_delegate respondsToSelector: @selector(elementBuilder:
didNotExpectCloseTag:prefix:namespace:)])
[_delegate elementBuilder: self
didNotExpectCloseTag: name
prefix: prefix
namespace: namespace];
else
@throw [OFMalformedXMLException exception];
return;
case 1:
[_delegate elementBuilder: self
didBuildElement: _stack.firstObject];
break;
}
[_stack removeLastObject];
}
- (void)parser: (OFXMLParser *)parser
foundCharacters: (OFString *)characters
{
OFXMLCharacters *node;
OFXMLElement *parent;
node = [OFXMLCharacters charactersWithString: characters];
parent = _stack.lastObject;
if (parent != nil)
[parent addChild: node];
else if ([_delegate respondsToSelector:
@selector(elementBuilder:didBuildParentlessNode:)])
[_delegate elementBuilder: self didBuildParentlessNode: node];
}
- (void)parser: (OFXMLParser *)parser
foundCDATA: (OFString *)CDATA
{
OFXMLCDATA *node = [OFXMLCDATA CDATAWithString: CDATA];
OFXMLElement *parent = _stack.lastObject;
if (parent != nil)
[parent addChild: node];
else if ([_delegate respondsToSelector:
@selector(elementBuilder:didBuildParentlessNode:)])
[_delegate elementBuilder: self didBuildParentlessNode: node];
}
- (void)parser: (OFXMLParser *)parser
foundComment: (OFString *)comment
{
OFXMLComment *node = [OFXMLComment commentWithText: comment];
OFXMLElement *parent = _stack.lastObject;
if (parent != nil)
[parent addChild: node];
else if ([_delegate respondsToSelector:
@selector(elementBuilder:didBuildParentlessNode:)])
[_delegate elementBuilder: self didBuildParentlessNode: node];
}
- (OFString *)parser: (OFXMLParser *)parser
foundUnknownEntityNamed: (OFString *)entity
{
if ([_delegate respondsToSelector:
@selector(elementBuilder:foundUnknownEntityNamed:)])
return [_delegate elementBuilder: self
foundUnknownEntityNamed: entity];
return nil;
}
@end