/*
* Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013
* 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.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"
#include <string.h>
#include <sys/types.h>
#import "OFXMLParser.h"
#import "OFString.h"
#import "OFArray.h"
#import "OFDictionary.h"
#import "OFDataArray.h"
#import "OFXMLAttribute.h"
#import "OFStream.h"
#import "OFFile.h"
#import "OFSystemInfo.h"
#import "OFInitializationFailedException.h"
#import "OFMalformedXMLException.h"
#import "OFUnboundNamespaceException.h"
#import "autorelease.h"
#import "macros.h"
typedef void (*state_function)(id, SEL, const char*, size_t*, size_t*);
static SEL selectors[OF_XMLPARSER_NUM_STATES];
static state_function lookupTable[OF_XMLPARSER_NUM_STATES];
static OF_INLINE void
buffer_append(OFDataArray *buffer, const char *string,
of_string_encoding_t encoding, size_t length)
{
if (OF_LIKELY(encoding == OF_STRING_ENCODING_UTF_8))
[buffer addItems: string
count: length];
else {
void *pool = objc_autoreleasePoolPush();
OFString *tmp = [OFString stringWithCString: string
encoding: encoding
length: length];
[buffer addItems: [tmp UTF8String]
count: [tmp UTF8StringLength]];
objc_autoreleasePoolPop(pool);
}
}
static OFString*
transform_string(OFDataArray *buffer, size_t cut, bool unescape,
id <OFStringXMLUnescapingDelegate> delegate)
{
char *items;
size_t i, length;
bool hasEntities = false;
OFString *ret;
items = [buffer items];
length = [buffer count] - cut;
for (i = 0; i < length; i++) {
if (items[i] == '\r') {
if (i + 1 < length && items[i + 1] == '\n') {
[buffer removeItemAtIndex: i];
items = [buffer items];
i--;
length--;
} else
items[i] = '\n';
} else if (items[i] == '&')
hasEntities = true;
}
ret = [OFString stringWithUTF8String: items
length: length];
if (unescape && hasEntities)
return [ret stringByXMLUnescapingWithDelegate: delegate];
return ret;
}
static OFString*
namespace_for_prefix(OFString *prefix, OFArray *namespaces)
{
OFDictionary **objects = [namespaces objects];
ssize_t i;
if (prefix == nil)
prefix = @"";
for (i = [namespaces count] - 1; i >= 0; i--) {
OFString *tmp;
if ((tmp = [objects[i] objectForKey: prefix]) != nil)
return tmp;
}
return nil;
}
static OF_INLINE void
resolve_attribute_namespace(OFXMLAttribute *attribute, OFArray *namespaces,
OFXMLParser *self)
{
OFString *attributeNS;
OFString *attributePrefix = attribute->_namespace;
if (attributePrefix == nil)
return;
attributeNS = namespace_for_prefix(attributePrefix, namespaces);
if ((attributePrefix != nil && attributeNS == nil))
@throw [OFUnboundNamespaceException
exceptionWithClass: [self class]
prefix: attributePrefix];
[attribute->_namespace release];
attribute->_namespace = [attributeNS retain];
}
@implementation OFXMLParser
+ (void)initialize
{
size_t i;
const SEL selectors_[OF_XMLPARSER_NUM_STATES] = {
@selector(OF_parseInByteOrderMarkWithBuffer:i:last:),
@selector(OF_parseOutsideTagWithBuffer:i:last:),
@selector(OF_parseTagOpenedWithBuffer:i:last:),
@selector(OF_parseInProcessingInstructionsWithBuffer:i:last:),
@selector(OF_parseInTagNameWithBuffer:i:last:),
@selector(OF_parseInCloseTagNameWithBuffer:i:last:),
@selector(OF_parseInTagWithBuffer:i:last:),
@selector(OF_parseInAttributeNameWithBuffer:i:last:),
@selector(OF_parseExpectDelimiterWithBuffer:i:last:),
@selector(OF_parseInAttributeValueWithBuffer:i:last:),
@selector(OF_parseExpectCloseWithBuffer:i:last:),
@selector(OF_parseExpectSpaceOrCloseWithBuffer:i:last:),
@selector(OF_parseInExclamationMarkWithBuffer:i:last:),
@selector(OF_parseInCDATAOpeningWithBuffer:i:last:),
@selector(OF_parseInCDATA1WithBuffer:i:last:),
@selector(OF_parseInCDATA2WithBuffer:i:last:),
@selector(OF_parseInCommentOpeningWithBuffer:i:last:),
@selector(OF_parseInComment1WithBuffer:i:last:),
@selector(OF_parseInComment2WithBuffer:i:last:),
@selector(OF_parseInDoctypeWithBuffer:i:last:),
};
memcpy(selectors, selectors_, sizeof(selectors_));
for (i = 0; i < OF_XMLPARSER_NUM_STATES; i++) {
if (![self instancesRespondToSelector: selectors[i]])
@throw [OFInitializationFailedException
exceptionWithClass: self];
lookupTable[i] = (state_function)
[self instanceMethodForSelector: selectors[i]];
}
}
+ (instancetype)parser
{
return [[[self alloc] init] autorelease];
}
- init
{
self = [super init];
@try {
void *pool;
OFMutableDictionary *dict;
_buffer = [[OFBigDataArray alloc] init];
_previous = [[OFMutableArray alloc] init];
_namespaces = [[OFMutableArray alloc] init];
_attributes = [[OFMutableArray alloc] init];
pool = objc_autoreleasePoolPush();
dict = [OFMutableDictionary dictionaryWithKeysAndObjects:
@"xml", @"http://www.w3.org/XML/1998/namespace",
@"xmlns", @"http://www.w3.org/2000/xmlns/", nil];
[_namespaces addObject: dict];
_acceptProlog = true;
_lineNumber = 1;
_encoding = OF_STRING_ENCODING_UTF_8;
_depthLimit = 32;
objc_autoreleasePoolPop(pool);
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[_buffer release];
[_name release];
[_prefix release];
[_namespaces release];
[_attributes release];
[_attributeName release];
[_attributePrefix release];
[_previous release];
[super dealloc];
}
- (id <OFXMLParserDelegate>)delegate
{
return _delegate;
}
- (void)setDelegate: (id <OFXMLParserDelegate>)delegate
{
_delegate = delegate;
}
- (size_t)depthLimit
{
return _depthLimit;
}
- (void)setDepthLimit: (size_t)depthLimit
{
_depthLimit = depthLimit;
}
- (void)parseBuffer: (const char*)buffer
length: (size_t)length
{
size_t i, last = 0;
for (i = 0; i < length; i++) {
size_t j = i;
lookupTable[_state](self, selectors[_state], buffer, &i, &last);
/* Ensure we don't count this character twice */
if (i != j)
continue;
if (buffer[i] == '\r' || (buffer[i] == '\n' &&
!_lastCarriageReturn))
_lineNumber++;
_lastCarriageReturn = (buffer[i] == '\r');
}
/* In OF_XMLPARSER_IN_TAG, there can be only spaces */
if (length - last > 0 && _state != OF_XMLPARSER_IN_TAG)
buffer_append(_buffer, buffer + last, _encoding, length - last);
}
- (void)parseString: (OFString*)string
{
[self parseBuffer: [string UTF8String]
length: [string UTF8StringLength]];
}
- (void)parseStream: (OFStream*)stream
{
size_t pageSize = [OFSystemInfo pageSize];
char *buffer = [self allocMemoryWithSize: pageSize];
@try {
while (![stream isAtEndOfStream]) {
size_t length = [stream readIntoBuffer: buffer
length: pageSize];
[self parseBuffer: buffer
length: length];
}
} @finally {
[self freeMemory: buffer];
}
}
- (void)parseFile: (OFString*)path
{
OFFile *file = [[OFFile alloc] initWithPath: path
mode: @"rb"];
@try {
[self parseStream: file];
} @finally {
[file release];
}
}
/*
* The following methods handle the different states of the parser. They are
* looked up in +[initialize] and put in a lookup table to speed things up.
* One dispatch for every character would be way too slow!
*/
- (void)OF_parseInByteOrderMarkWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (buffer[*i] != "\xEF\xBB\xBF"[_level]) {
if (_level == 0) {
_state = OF_XMLPARSER_OUTSIDE_TAG;
(*i)--;
return;
}
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
}
if (_level++ == 2)
_state = OF_XMLPARSER_OUTSIDE_TAG;
*last = *i + 1;
}
/* Not in a tag */
- (void)OF_parseOutsideTagWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
size_t length;
if ((_finishedParsing || [_previous count] < 1) && buffer[*i] != ' ' &&
buffer[*i] != '\t' && buffer[*i] != '\n' && buffer[*i] != '\r' &&
buffer[*i] != '<')
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
if (buffer[*i] != '<')
return;
if ((length = *i - *last) > 0)
buffer_append(_buffer, buffer + *last, _encoding, length);
if ([_buffer count] > 0) {
void *pool = objc_autoreleasePoolPush();
OFString *characters = transform_string(_buffer, 0, true, self);
if ([_delegate respondsToSelector:
@selector(parser:foundCharacters:)])
[_delegate parser: self
foundCharacters: characters];
objc_autoreleasePoolPop(pool);
}
[_buffer removeAllItems];
*last = *i + 1;
_state = OF_XMLPARSER_TAG_OPENED;
}
/* Tag was just opened */
- (void)OF_parseTagOpenedWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (_finishedParsing && buffer[*i] != '!' && buffer[*i] != '?')
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
switch (buffer[*i]) {
case '?':
*last = *i + 1;
_state = OF_XMLPARSER_IN_PROCESSING_INSTRUCTIONS;
_level = 0;
break;
case '/':
*last = *i + 1;
_state = OF_XMLPARSER_IN_CLOSE_TAG_NAME;
_acceptProlog = false;
break;
case '!':
*last = *i + 1;
_state = OF_XMLPARSER_IN_EXCLAMATIONMARK;
_acceptProlog = false;
break;
default:
if (_depthLimit > 0 && [_previous count] >= _depthLimit)
@throw [OFMalformedXMLException
exceptionWithClass: [self class]
parser: self];
_state = OF_XMLPARSER_IN_TAG_NAME;
_acceptProlog = false;
(*i)--;
break;
}
}
/* <?xml […]?> */
- (bool)OF_parseXMLProcessingInstructions: (OFString*)pi
{
const char *cString;
size_t i, last, length;
int PIState = 0;
OFString *attribute = nil;
OFMutableString *value = nil;
char piDelimiter = 0;
bool hasVersion = false;
if (!_acceptProlog)
return false;
_acceptProlog = false;
pi = [pi substringWithRange: of_range(3, [pi length] - 3)];
pi = [pi stringByDeletingEnclosingWhitespaces];
cString = [pi UTF8String];
length = [pi UTF8StringLength];
for (i = last = 0; i < length; i++) {
switch (PIState) {
case 0:
if (cString[i] == ' ' || cString[i] == '\t' ||
cString[i] == '\r' || cString[i] == '\n')
continue;
last = i;
PIState = 1;
i--;
break;
case 1:
if (cString[i] != '=')
continue;
attribute = [OFString
stringWithUTF8String: cString + last
length: i - last];
last = i + 1;
PIState = 2;
break;
case 2:
if (cString[i] != '\'' && cString[i] != '"')
return false;
piDelimiter = cString[i];
last = i + 1;
PIState = 3;
break;
case 3:
if (cString[i] != piDelimiter)
continue;
value = [OFMutableString
stringWithUTF8String: cString + last
length: i - last];
if ([attribute isEqual: @"version"]) {
if (![value hasPrefix: @"1."])
return false;
hasVersion = true;
}
if ([attribute isEqual: @"encoding"]) {
[value lowercase];
if ([value isEqual: @"utf-8"])
_encoding = OF_STRING_ENCODING_UTF_8;
else if ([value isEqual: @"iso-8859-1"])
_encoding =
OF_STRING_ENCODING_ISO_8859_1;
else if ([value isEqual: @"iso-8859-15"])
_encoding =
OF_STRING_ENCODING_ISO_8859_15;
else if ([value isEqual: @"windows-1252"])
_encoding =
OF_STRING_ENCODING_WINDOWS_1252;
else
return false;
}
last = i + 1;
PIState = 0;
break;
}
}
if (PIState != 0 || !hasVersion)
return false;
return true;
}
/* Inside processing instructions */
- (void)OF_parseInProcessingInstructionsWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (buffer[*i] == '?')
_level = 1;
else if (_level == 1 && buffer[*i] == '>') {
void *pool = objc_autoreleasePoolPush();
OFString *PI;
buffer_append(_buffer, buffer + *last, _encoding, *i - *last);
PI = transform_string(_buffer, 1, false, nil);
if ([PI isEqual: @"xml"] || [PI hasPrefix: @"xml "] ||
[PI hasPrefix: @"xml\t"] || [PI hasPrefix: @"xml\r"] ||
[PI hasPrefix: @"xml\n"])
if (![self OF_parseXMLProcessingInstructions: PI])
@throw [OFMalformedXMLException
exceptionWithClass: [self class]
parser: self];
if ([_delegate respondsToSelector:
@selector(parser:foundProcessingInstructions:)])
[_delegate parser: self
foundProcessingInstructions: PI];
objc_autoreleasePoolPop(pool);
[_buffer removeAllItems];
*last = *i + 1;
_state = OF_XMLPARSER_OUTSIDE_TAG;
} else
_level = 0;
}
/* Inside a tag, no name yet */
- (void)OF_parseInTagNameWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
void *pool;
const char *bufferCString, *tmp;
size_t length, bufferLength;
OFString *bufferString;
if (buffer[*i] != ' ' && buffer[*i] != '\t' && buffer[*i] != '\n' &&
buffer[*i] != '\r' && buffer[*i] != '>' && buffer[*i] != '/')
return;
if ((length = *i - *last) > 0)
buffer_append(_buffer, buffer + *last, _encoding, length);
pool = objc_autoreleasePoolPush();
bufferCString = [_buffer items];
bufferLength = [_buffer count];
bufferString = [OFString stringWithUTF8String: bufferCString
length: bufferLength];
if ((tmp = memchr(bufferCString, ':', bufferLength)) != NULL) {
_name = [[OFString alloc]
initWithUTF8String: tmp + 1
length: bufferLength -
(tmp - bufferCString) - 1];
_prefix = [[OFString alloc]
initWithUTF8String: bufferCString
length: tmp - bufferCString];
} else {
_name = [bufferString copy];
_prefix = nil;
}
if (buffer[*i] == '>' || buffer[*i] == '/') {
OFString *namespace;
namespace = namespace_for_prefix(_prefix, _namespaces);
if (_prefix != nil && namespace == nil)
@throw [OFUnboundNamespaceException
exceptionWithClass: [self class]
prefix: _prefix];
if ([_delegate respondsToSelector: @selector(parser:
didStartElement:prefix:namespace:attributes:)])
[_delegate parser: self
didStartElement: _name
prefix: _prefix
namespace: namespace
attributes: nil];
if (buffer[*i] == '/') {
if ([_delegate respondsToSelector:
@selector(parser:didEndElement:prefix:namespace:)])
[_delegate parser: self
didEndElement: _name
prefix: _prefix
namespace: namespace];
if ([_previous count] == 0)
_finishedParsing = true;
} else
[_previous addObject: bufferString];
[_name release];
[_prefix release];
_name = _prefix = nil;
_state = (buffer[*i] == '/'
? OF_XMLPARSER_EXPECT_CLOSE
: OF_XMLPARSER_OUTSIDE_TAG);
} else
_state = OF_XMLPARSER_IN_TAG;
if (buffer[*i] != '/')
[_namespaces addObject: [OFMutableDictionary dictionary]];
objc_autoreleasePoolPop(pool);
[_buffer removeAllItems];
*last = *i + 1;
}
/* Inside a close tag, no name yet */
- (void)OF_parseInCloseTagNameWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
void *pool;
const char *bufferCString, *tmp;
size_t length, bufferLength;
OFString *bufferString, *namespace;
if (buffer[*i] != ' ' && buffer[*i] != '\t' && buffer[*i] != '\n' &&
buffer[*i] != '\r' && buffer[*i] != '>')
return;
if ((length = *i - *last) > 0)
buffer_append(_buffer, buffer + *last, _encoding, length);
pool = objc_autoreleasePoolPush();
bufferCString = [_buffer items];
bufferLength = [_buffer count];
bufferString = [OFString stringWithUTF8String: bufferCString
length: bufferLength];
if ((tmp = memchr(bufferCString, ':', bufferLength)) != NULL) {
_name = [[OFString alloc]
initWithUTF8String: tmp + 1
length: bufferLength -
(tmp - bufferCString) - 1];
_prefix = [[OFString alloc]
initWithUTF8String: bufferCString
length: tmp - bufferCString];
} else {
_name = [bufferString copy];
_prefix = nil;
}
if (![[_previous lastObject] isEqual: bufferString])
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
[_previous removeLastObject];
[_buffer removeAllItems];
namespace = namespace_for_prefix(_prefix, _namespaces);
if (_prefix != nil && namespace == nil)
@throw [OFUnboundNamespaceException
exceptionWithClass: [self class]
prefix: _prefix];
if ([_delegate respondsToSelector:
@selector(parser:didEndElement:prefix:namespace:)])
[_delegate parser: self
didEndElement: _name
prefix: _prefix
namespace: namespace];
objc_autoreleasePoolPop(pool);
[_namespaces removeLastObject];
[_name release];
[_prefix release];
_name = _prefix = nil;
*last = *i + 1;
_state = (buffer[*i] == '>'
? OF_XMLPARSER_OUTSIDE_TAG
: OF_XMLPARSER_EXPECT_SPACE_OR_CLOSE);
if ([_previous count] == 0)
_finishedParsing = true;
}
/* Inside a tag, name found */
- (void)OF_parseInTagWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
void *pool;
OFString *namespace;
OFXMLAttribute **attributesObjects;
size_t j, attributesCount;
if (buffer[*i] != '>' && buffer[*i] != '/') {
if (buffer[*i] != ' ' && buffer[*i] != '\t' &&
buffer[*i] != '\n' && buffer[*i] != '\r') {
*last = *i;
_state = OF_XMLPARSER_IN_ATTR_NAME;
(*i)--;
}
return;
}
attributesObjects = [_attributes objects];
attributesCount = [_attributes count];
namespace = namespace_for_prefix(_prefix, _namespaces);
if (_prefix != nil && namespace == nil)
@throw [OFUnboundNamespaceException
exceptionWithClass: [self class]
prefix: _prefix];
for (j = 0; j < attributesCount; j++)
resolve_attribute_namespace(attributesObjects[j], _namespaces,
self);
pool = objc_autoreleasePoolPush();
if ([_delegate respondsToSelector:
@selector(parser:didStartElement:prefix:namespace:attributes:)])
[_delegate parser: self
didStartElement: _name
prefix: _prefix
namespace: namespace
attributes: _attributes];
if (buffer[*i] == '/') {
if ([_delegate respondsToSelector:
@selector(parser:didEndElement:prefix:namespace:)])
[_delegate parser: self
didEndElement: _name
prefix: _prefix
namespace: namespace];
if ([_previous count] == 0)
_finishedParsing = true;
[_namespaces removeLastObject];
} else if (_prefix != nil) {
OFString *str = [OFString stringWithFormat: @"%@:%@",
_prefix, _name];
[_previous addObject: str];
} else
[_previous addObject: _name];
objc_autoreleasePoolPop(pool);
[_name release];
[_prefix release];
[_attributes removeAllObjects];
_name = _prefix = nil;
*last = *i + 1;
_state = (buffer[*i] == '/'
? OF_XMLPARSER_EXPECT_CLOSE
: OF_XMLPARSER_OUTSIDE_TAG);
}
/* Looking for attribute name */
- (void)OF_parseInAttributeNameWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
void *pool;
OFMutableString *bufferString;
const char *bufferCString, *tmp;
size_t length, bufferLength;
if (buffer[*i] != '=')
return;
if ((length = *i - *last) > 0)
buffer_append(_buffer, buffer + *last, _encoding, length);
pool = objc_autoreleasePoolPush();
bufferString = [OFMutableString stringWithUTF8String: [_buffer items]
length: [_buffer count]];
[bufferString deleteEnclosingWhitespaces];
/* Prevent a useless copy later */
[bufferString makeImmutable];
bufferCString = [bufferString UTF8String];
bufferLength = [bufferString UTF8StringLength];
if ((tmp = memchr(bufferCString, ':', bufferLength)) != NULL) {
_attributeName = [[OFString alloc]
initWithUTF8String: tmp + 1
length: bufferLength -
(tmp - bufferCString) - 1];
_attributePrefix = [[OFString alloc]
initWithUTF8String: bufferCString
length: tmp - bufferCString];
} else {
_attributeName = [bufferString copy];
_attributePrefix = nil;
}
objc_autoreleasePoolPop(pool);
[_buffer removeAllItems];
*last = *i + 1;
_state = OF_XMLPARSER_EXPECT_DELIMITER;
}
/* Expecting delimiter */
- (void)OF_parseExpectDelimiterWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
*last = *i + 1;
if (buffer[*i] == ' ' || buffer[*i] == '\t' || buffer[*i] == '\n' ||
buffer[*i] == '\r')
return;
if (buffer[*i] != '\'' && buffer[*i] != '"')
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
_delimiter = buffer[*i];
_state = OF_XMLPARSER_IN_ATTR_VALUE;
}
/* Looking for attribute value */
- (void)OF_parseInAttributeValueWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
void *pool;
OFString *attributeValue;
size_t length;
if (buffer[*i] != _delimiter)
return;
if ((length = *i - *last) > 0)
buffer_append(_buffer, buffer + *last, _encoding, length);
pool = objc_autoreleasePoolPush();
attributeValue = transform_string(_buffer, 0, true, self);
if (_attributePrefix == nil && [_attributeName isEqual: @"xmlns"])
[[_namespaces lastObject] setObject: attributeValue
forKey: @""];
if ([_attributePrefix isEqual: @"xmlns"])
[[_namespaces lastObject] setObject: attributeValue
forKey: _attributeName];
[_attributes addObject:
[OFXMLAttribute attributeWithName: _attributeName
namespace: _attributePrefix
stringValue: attributeValue]];
objc_autoreleasePoolPop(pool);
[_buffer removeAllItems];
[_attributeName release];
[_attributePrefix release];
_attributeName = _attributePrefix = nil;
*last = *i + 1;
_state = OF_XMLPARSER_IN_TAG;
}
/* Expecting closing '>' */
- (void)OF_parseExpectCloseWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (buffer[*i] == '>') {
*last = *i + 1;
_state = OF_XMLPARSER_OUTSIDE_TAG;
} else
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
}
/* Expecting closing '>' or space */
- (void)OF_parseExpectSpaceOrCloseWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (buffer[*i] == '>') {
*last = *i + 1;
_state = OF_XMLPARSER_OUTSIDE_TAG;
} else if (buffer[*i] != ' ' && buffer[*i] != '\t' &&
buffer[*i] != '\n' && buffer[*i] != '\r')
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
}
/* In <! */
- (void)OF_parseInExclamationMarkWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (_finishedParsing && buffer[*i] != '-')
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
if (buffer[*i] == '-')
_state = OF_XMLPARSER_IN_COMMENT_OPENING;
else if (buffer[*i] == '[') {
_state = OF_XMLPARSER_IN_CDATA_OPENING;
_level = 0;
} else if (buffer[*i] == 'D') {
_state = OF_XMLPARSER_IN_DOCTYPE;
_level = 0;
} else
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
*last = *i + 1;
}
/* CDATA */
- (void)OF_parseInCDATAOpeningWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (buffer[*i] != "CDATA["[_level])
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
if (++_level == 6) {
_state = OF_XMLPARSER_IN_CDATA_1;
_level = 0;
}
*last = *i + 1;
}
- (void)OF_parseInCDATA1WithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (buffer[*i] == ']')
_level++;
else
_level = 0;
if (_level == 2)
_state = OF_XMLPARSER_IN_CDATA_2;
}
- (void)OF_parseInCDATA2WithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
void *pool;
OFString *CDATA;
if (buffer[*i] != '>') {
_state = OF_XMLPARSER_IN_CDATA_1;
_level = (buffer[*i] == ']' ? 1 : 0);
return;
}
pool = objc_autoreleasePoolPush();
buffer_append(_buffer, buffer + *last, _encoding, *i - *last);
CDATA = transform_string(_buffer, 2, false, nil);
if ([_delegate respondsToSelector: @selector(parser:foundCDATA:)])
[_delegate parser: self
foundCDATA: CDATA];
objc_autoreleasePoolPop(pool);
[_buffer removeAllItems];
*last = *i + 1;
_state = OF_XMLPARSER_OUTSIDE_TAG;
}
/* Comment */
- (void)OF_parseInCommentOpeningWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (buffer[*i] != '-')
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
*last = *i + 1;
_state = OF_XMLPARSER_IN_COMMENT_1;
_level = 0;
}
- (void)OF_parseInComment1WithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if (buffer[*i] == '-')
_level++;
else
_level = 0;
if (_level == 2)
_state = OF_XMLPARSER_IN_COMMENT_2;
}
- (void)OF_parseInComment2WithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
void *pool;
OFString *comment;
if (buffer[*i] != '>')
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
pool = objc_autoreleasePoolPush();
buffer_append(_buffer, buffer + *last, _encoding, *i - *last);
comment = transform_string(_buffer, 2, false, nil);
if ([_delegate respondsToSelector: @selector(parser:foundComment:)])
[_delegate parser: self
foundComment: comment];
objc_autoreleasePoolPop(pool);
[_buffer removeAllItems];
*last = *i + 1;
_state = OF_XMLPARSER_OUTSIDE_TAG;
}
/* In <!DOCTYPE ...> */
- (void)OF_parseInDoctypeWithBuffer: (const char*)buffer
i: (size_t*)i
last: (size_t*)last
{
if ((_level < 6 && buffer[*i] != "OCTYPE"[_level]) ||
(_level == 6 && buffer[*i] != ' ' && buffer[*i] != '\t' &&
buffer[*i] != '\n' && buffer[*i] != '\r'))
@throw [OFMalformedXMLException exceptionWithClass: [self class]
parser: self];
if (_level < 7 || buffer[*i] == '<')
_level++;
if (buffer[*i] == '>') {
if (_level == 7)
_state = OF_XMLPARSER_OUTSIDE_TAG;
else
_level--;
}
*last = *i + 1;
}
- (size_t)lineNumber
{
return _lineNumber;
}
- (bool)finishedParsing
{
return _finishedParsing;
}
- (OFString*)string: (OFString*)string
containsUnknownEntityNamed: (OFString*)entity
{
if ([_delegate respondsToSelector:
@selector(parser:foundUnknownEntityNamed:)])
return [_delegate parser: self
foundUnknownEntityNamed: entity];
return nil;
}
@end