/*
* Copyright (c) 2008, 2009, 2010, 2011
* 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"
#define OF_XML_PARSER_M
#include <string.h>
#include <unistd.h>
#import "OFXMLParser.h"
#import "OFString.h"
#import "OFArray.h"
#import "OFDictionary.h"
#import "OFXMLAttribute.h"
#import "OFStream.h"
#import "OFFile.h"
#import "OFAutoreleasePool.h"
#import "OFInitializationFailedException.h"
#import "OFMalformedXMLException.h"
#import "OFUnboundNamespaceException.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 lookup_table[OF_XMLPARSER_NUM_STATES];
static OF_INLINE OFString*
transform_string(OFMutableString *cache,
OFObject <OFStringXMLUnescapingDelegate> *delegate)
{
[cache replaceOccurrencesOfString: @"\r\n"
withString: @"\n"];
[cache replaceOccurrencesOfString: @"\r"
withString: @"\n"];
return [cache stringByXMLUnescapingWithDelegate: delegate];
}
static OFString*
namespace_for_prefix(OFString *prefix, OFArray *namespaces)
{
OFDictionary **carray = [namespaces cArray];
ssize_t i;
if (prefix == nil)
prefix = @"";
for (i = [namespaces count] - 1; i >= 0; i--) {
OFString *tmp;
if ((tmp = [carray[i] objectForKey: prefix]) != nil)
return tmp;
}
return nil;
}
static OF_INLINE void
resolve_attr_namespace(OFXMLAttribute *attr, OFString *prefix, OFString *ns,
OFArray *namespaces, Class isa)
{
OFString *attr_ns;
OFString *attr_prefix = attr->ns;
if (attr_prefix == nil)
return;
attr_ns = namespace_for_prefix(attr_prefix, namespaces);
if ((attr_prefix != nil && attr_ns == nil))
@throw [OFUnboundNamespaceException newWithClass: isa
prefix: attr_prefix];
[attr->ns release];
attr->ns = [attr_ns retain];
}
@implementation OFXMLParser
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
@synthesize processingInstructionsHandler, elementStartHandler;
@synthesize elementEndHandler, charactersHandler, CDATAHandler, commentHandler;
@synthesize unknownEntityHandler;
#endif
+ (void)initialize
{
size_t i;
const SEL sels[] = {
@selector(_parseOutsideTagWithBuffer:i:last:),
@selector(_parseTagOpenedWithBuffer:i:last:),
@selector(_parseInProcessingInstructionsWithBuffer:i:last:),
@selector(_parseInTagNameWithBuffer:i:last:),
@selector(_parseInCloseTagNameWithBuffer:i:last:),
@selector(_parseInTagWithBuffer:i:last:),
@selector(_parseInAttributeNameWithBuffer:i:last:),
@selector(_parseExpectDelimiterWithBuffer:i:last:),
@selector(_parseInAttributeValueWithBuffer:i:last:),
@selector(_parseExpectCloseWithBuffer:i:last:),
@selector(_parseExpectSpaceOrCloseWithBuffer:i:last:),
@selector(_parseInExclamationMarkWithBuffer:i:last:),
@selector(_parseInCDATAOpeningWithBuffer:i:last:),
@selector(_parseInCDATA1WithBuffer:i:last:),
@selector(_parseInCDATA2WithBuffer:i:last:),
@selector(_parseInCommentOpeningWithBuffer:i:last:),
@selector(_parseInComment1WithBuffer:i:last:),
@selector(_parseInComment2WithBuffer:i:last:),
@selector(_parseInDoctypeWithBuffer:i:last:),
};
memcpy(selectors, sels, sizeof(sels));
for (i = 0; i < OF_XMLPARSER_NUM_STATES; i++) {
if (![self instancesRespondToSelector: selectors[i]])
@throw [OFInitializationFailedException
newWithClass: self];
lookup_table[i] = (state_function)
[self instanceMethodForSelector: selectors[i]];
}
}
+ parser
{
return [[[self alloc] init] autorelease];
}
- init
{
self = [super init];
@try {
OFAutoreleasePool *pool;
OFMutableDictionary *dict;
cache = [[OFMutableString alloc] init];
previous = [[OFMutableArray alloc] init];
namespaces = [[OFMutableArray alloc] init];
pool = [[OFAutoreleasePool alloc] init];
dict = [OFMutableDictionary dictionaryWithKeysAndObjects:
@"xml", @"http://www.w3.org/XML/1998/namespace",
@"xmlns", @"http://www.w3.org/2000/xmlns/", nil];
[namespaces addObject: dict];
acceptProlog = YES;
lineNumber = 1;
[pool release];
} @catch (id e) {
[self release];
@throw e;
}
return self;
}
- (void)dealloc
{
[(id)delegate release];
[cache release];
[name release];
[prefix release];
[namespaces release];
[attrs release];
[attrName release];
[attrPrefix release];
[previous release];
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
[elementStartHandler release];
[elementEndHandler release];
[charactersHandler release];
[CDATAHandler release];
[commentHandler release];
[unknownEntityHandler release];
#endif
[super dealloc];
}
- (id <OFXMLParserDelegate>)delegate
{
return [[(id)delegate retain] autorelease];
}
- (void)setDelegate: (id <OFXMLParserDelegate>)delegate_
{
[(id)delegate_ retain];
[(id)delegate release];
delegate = delegate_;
}
- (void)parseBuffer: (const char*)buf
withSize: (size_t)size
{
size_t i, last = 0;
for (i = 0; i < size; i++) {
size_t j = i;
lookup_table[state](self, selectors[state], buf, &i, &last);
/* Ensure we don't count this character twice */
if (i != j)
continue;
if (buf[i] == '\r' || (buf[i] == '\n' && !lastCarriageReturn))
lineNumber++;
lastCarriageReturn = (buf[i] == '\r');
}
/* In OF_XMLPARSER_IN_TAG, there can be only spaces */
if (size - last > 0 && state != OF_XMLPARSER_IN_TAG)
[cache appendCStringWithoutUTF8Checking: buf + last
length: size - last];
}
- (void)parseString: (OFString*)str
{
[self parseBuffer: [str cString]
withSize: [str cStringLength]];
}
- (void)parseStream: (OFStream*)stream
{
char *buf = [self allocMemoryWithSize: of_pagesize];
@try {
while (![stream isAtEndOfStream]) {
size_t len = [stream readNBytes: of_pagesize
intoBuffer: buf];
[self parseBuffer: buf
withSize: len];
}
} @finally {
[self freeMemory: buf];
}
}
- (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!
*/
/* Not in a tag */
- (void)_parseOutsideTagWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
size_t len;
if ((finishedParsing || [previous count] < 1) && buf[*i] != ' ' &&
buf[*i] != '\t' && buf[*i] != '\n' && buf[*i] != '\r' &&
buf[*i] != '<')
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
if (buf[*i] != '<')
return;
if ((len = *i - *last) > 0)
[cache appendCStringWithoutUTF8Checking: buf + *last
length: len];
if ([cache cStringLength] > 0) {
OFString *str;
OFAutoreleasePool *pool;
pool = [[OFAutoreleasePool alloc] init];
str = transform_string(cache, self);
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (charactersHandler != NULL)
charactersHandler(self, str);
else
#endif
[delegate parser: self
foundCharacters: str];
[pool release];
}
[cache setToCString: ""];
*last = *i + 1;
state = OF_XMLPARSER_TAG_OPENED;
}
/* Tag was just opened */
- (void)_parseTagOpenedWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (finishedParsing && buf[*i] != '!' && buf[*i] != '?')
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
switch (buf[*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 = NO;
break;
case '!':
*last = *i + 1;
state = OF_XMLPARSER_IN_EXCLAMATIONMARK;
acceptProlog = NO;
break;
default:
state = OF_XMLPARSER_IN_TAG_NAME;
acceptProlog = NO;
(*i)--;
break;
}
}
/* <?xml […]?> */
- (BOOL)_parseXMLProcessingInstructions: (OFString*)pi
{
const char *pi_c;
size_t i, last, pi_len;
int xstate = 0;
OFString *attr = nil;
OFString *val = nil;
char xdelim = 0;
if (!acceptProlog)
return NO;
acceptProlog = NO;
pi = [pi substringFromIndex: 3
toIndex: [pi length]];
pi = [pi stringByDeletingLeadingAndTrailingWhitespaces];
pi_c = [pi cString];
pi_len = [pi cStringLength];
for (i = last = 0; i < pi_len; i++) {
switch (xstate) {
case 0:
if (pi_c[i] == ' ' || pi_c[i] == '\t' ||
pi_c[i] == '\r' || pi_c[i] == '\n')
continue;
last = i;
xstate = 1;
i--;
break;
case 1:
if (pi_c[i] != '=')
continue;
attr = [OFString stringWithCString: pi_c + last
length: i - last];
last = i + 1;
xstate = 2;
break;
case 2:
if (pi_c[i] != '\'' && pi_c[i] != '"')
return NO;
xdelim = pi_c[i];
last = i + 1;
xstate = 3;
break;
case 3:
if (pi_c[i] != xdelim)
continue;
val = [OFString stringWithCString: pi_c + last
length: i - last];
if ([attr isEqual: @"version"])
if (![val hasPrefix: @"1."])
return NO;
if ([attr isEqual: @"encoding"])
if ([val caseInsensitiveCompare: @"utf-8"] !=
OF_ORDERED_SAME)
return NO;
last = i + 1;
xstate = 0;
break;
}
}
if (xstate != 0)
return NO;
return YES;
}
/* Inside processing instructions */
- (void)_parseInProcessingInstructionsWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (buf[*i] == '?')
level = 1;
else if (level == 1 && buf[*i] == '>') {
OFAutoreleasePool *pool = [[OFAutoreleasePool alloc] init];
OFMutableString *pi;
size_t len;
[cache appendCStringWithoutUTF8Checking: buf + *last
length: *i - *last];
pi = [[cache mutableCopy] autorelease];
len = [pi length];
[pi deleteCharactersFromIndex: len - 1
toIndex: len];
/*
* Class swizzle the string to be immutable. We pass it as
* OFString*, so it can't be modified anyway. But not swizzling
* it would create a real copy each time -[copy] is called.
*/
pi->isa = [OFString class];
if ([pi isEqual: @"xml"] || [pi hasPrefix: @"xml "] ||
[pi hasPrefix: @"xml\t"] || [pi hasPrefix: @"xml\r"] ||
[pi hasPrefix: @"xml\n"])
if (![self _parseXMLProcessingInstructions: pi])
@throw [OFMalformedXMLException
newWithClass: isa
parser: self];
[delegate parser: self
foundProcessingInstructions: pi];
[pool release];
[cache setToCString: ""];
*last = *i + 1;
state = OF_XMLPARSER_OUTSIDE_TAG;
} else
level = 0;
}
/* Inside a tag, no name yet */
- (void)_parseInTagNameWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
const char *cache_c, *tmp;
size_t len, cache_len;
if (buf[*i] != ' ' && buf[*i] != '\t' && buf[*i] != '\n' &&
buf[*i] != '\r' && buf[*i] != '>' && buf[*i] != '/')
return;
if ((len = *i - *last) > 0)
[cache appendCStringWithoutUTF8Checking: buf + *last
length: len];
cache_c = [cache cString];
cache_len = [cache cStringLength];
if ((tmp = memchr(cache_c, ':', cache_len)) != NULL) {
name = [[OFString alloc] initWithCString: tmp + 1
length: cache_len -
(tmp - cache_c) - 1];
prefix = [[OFString alloc] initWithCString: cache_c
length: tmp - cache_c];
} else {
name = [cache copy];
prefix = nil;
}
if (buf[*i] == '>' || buf[*i] == '/') {
OFAutoreleasePool *pool;
OFString *ns;
ns = namespace_for_prefix(prefix, namespaces);
if (prefix != nil && ns == nil)
@throw
[OFUnboundNamespaceException newWithClass: isa
prefix: prefix];
pool = [[OFAutoreleasePool alloc] init];
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (elementStartHandler != NULL)
elementStartHandler(self, name, prefix, ns, nil);
else
#endif
[delegate parser: self
didStartElement: name
withPrefix: prefix
namespace: ns
attributes: nil];
if (buf[*i] == '/') {
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (elementEndHandler != NULL)
elementEndHandler(self, name, prefix, ns);
else
#endif
[delegate parser: self
didEndElement: name
withPrefix: prefix
namespace: ns];
} else
[previous addObject: [[cache copy] autorelease]];
[pool release];
[name release];
[prefix release];
name = prefix = nil;
state = (buf[*i] == '/'
? OF_XMLPARSER_EXPECT_CLOSE
: OF_XMLPARSER_OUTSIDE_TAG);
} else
state = OF_XMLPARSER_IN_TAG;
if (buf[*i] != '/') {
OFAutoreleasePool *pool;
pool = [[OFAutoreleasePool alloc] init];
[namespaces addObject: [OFMutableDictionary dictionary]];
[pool release];
}
[cache setToCString: ""];
*last = *i + 1;
}
/* Inside a close tag, no name yet */
- (void)_parseInCloseTagNameWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
OFAutoreleasePool *pool;
const char *cache_c, *tmp;
size_t len, cache_len;
OFString *ns;
if (buf[*i] != ' ' && buf[*i] != '\t' && buf[*i] != '\n' &&
buf[*i] != '\r' && buf[*i] != '>')
return;
if ((len = *i - *last) > 0)
[cache appendCStringWithoutUTF8Checking: buf + *last
length: len];
cache_c = [cache cString];
cache_len = [cache cStringLength];
if ((tmp = memchr(cache_c, ':', cache_len)) != NULL) {
name = [[OFString alloc] initWithCString: tmp + 1
length: cache_len -
(tmp - cache_c) - 1];
prefix = [[OFString alloc] initWithCString: cache_c
length: tmp - cache_c];
} else {
name = [cache copy];
prefix = nil;
}
if (![[previous lastObject] isEqual: cache])
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
[previous removeNObjects: 1];
[cache setToCString: ""];
ns = namespace_for_prefix(prefix, namespaces);
if (prefix != nil && ns == nil)
@throw [OFUnboundNamespaceException newWithClass: isa
prefix: prefix];
pool = [[OFAutoreleasePool alloc] init];
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (elementEndHandler != NULL)
elementEndHandler(self, name, prefix, ns);
else
#endif
[delegate parser: self
didEndElement: name
withPrefix: prefix
namespace: ns];
[pool release];
[namespaces removeNObjects: 1];
[name release];
[prefix release];
name = prefix = nil;
*last = *i + 1;
state = (buf[*i] == '>'
? OF_XMLPARSER_OUTSIDE_TAG
: OF_XMLPARSER_EXPECT_SPACE_OR_CLOSE);
if ([previous count] == 0)
finishedParsing = YES;
}
/* Inside a tag, name found */
- (void)_parseInTagWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
OFAutoreleasePool *pool;
OFString *ns;
OFXMLAttribute **attrs_c;
size_t j, attrs_cnt;
if (buf[*i] != '>' && buf[*i] != '/') {
if (buf[*i] != ' ' && buf[*i] != '\t' && buf[*i] != '\n' &&
buf[*i] != '\r') {
*last = *i;
state = OF_XMLPARSER_IN_ATTR_NAME;
(*i)--;
}
return;
}
attrs_c = [attrs cArray];
attrs_cnt = [attrs count];
ns = namespace_for_prefix(prefix, namespaces);
if (prefix != nil && ns == nil)
@throw [OFUnboundNamespaceException newWithClass: isa
prefix: prefix];
for (j = 0; j < attrs_cnt; j++)
resolve_attr_namespace(attrs_c[j], prefix, ns, namespaces, isa);
pool = [[OFAutoreleasePool alloc] init];
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (elementStartHandler != NULL)
elementStartHandler(self, name, prefix, ns, attrs);
else
#endif
[delegate parser: self
didStartElement: name
withPrefix: prefix
namespace: ns
attributes: attrs];
if (buf[*i] == '/') {
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (elementEndHandler != NULL)
elementEndHandler(self, name, prefix, ns);
else
#endif
[delegate parser: self
didEndElement: name
withPrefix: prefix
namespace: ns];
[namespaces removeNObjects: 1];
} else if (prefix != nil) {
OFString *str = [OFString stringWithFormat: @"%@:%@",
prefix, name];
[previous addObject: str];
} else
[previous addObject: name];
[pool release];
[name release];
[prefix release];
[attrs release];
name = prefix = nil;
attrs = nil;
*last = *i + 1;
state = (buf[*i] == '/'
? OF_XMLPARSER_EXPECT_CLOSE
: OF_XMLPARSER_OUTSIDE_TAG);
}
/* Looking for attribute name */
- (void)_parseInAttributeNameWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
const char *cache_c, *tmp;
size_t len, cache_len;
if (buf[*i] != '=')
return;
if ((len = *i - *last) > 0)
[cache appendCStringWithoutUTF8Checking: buf + *last
length: len];
[cache deleteLeadingAndTrailingWhitespaces];
cache_c = [cache cString];
cache_len = [cache cStringLength];
if ((tmp = memchr(cache_c, ':', cache_len)) != NULL) {
attrName = [[OFString alloc] initWithCString: tmp + 1
length: cache_len -
(tmp - cache_c) -
1];
attrPrefix = [[OFString alloc] initWithCString: cache_c
length: tmp - cache_c];
} else {
attrName = [cache copy];
attrPrefix = nil;
}
[cache setToCString: ""];
*last = *i + 1;
state = OF_XMLPARSER_EXPECT_DELIM;
}
/* Expecting delimiter */
- (void)_parseExpectDelimiterWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
*last = *i + 1;
if (buf[*i] == ' ' || buf[*i] == '\t' || buf[*i] == '\n' ||
buf[*i] == '\r')
return;
if (buf[*i] != '\'' && buf[*i] != '"')
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
delim = buf[*i];
state = OF_XMLPARSER_IN_ATTR_VALUE;
}
/* Looking for attribute value */
- (void)_parseInAttributeValueWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
OFAutoreleasePool *pool;
OFString *attr_val;
size_t len;
if (buf[*i] != delim)
return;
if ((len = *i - *last) > 0)
[cache appendCStringWithoutUTF8Checking: buf + *last
length: len];
pool = [[OFAutoreleasePool alloc] init];
attr_val = transform_string(cache, self);
if (attrPrefix == nil && [attrName isEqual: @"xmlns"])
[[namespaces lastObject] setObject: attr_val
forKey: @""];
if ([attrPrefix isEqual: @"xmlns"])
[[namespaces lastObject] setObject: attr_val
forKey: attrName];
if (attrs == nil)
attrs = [[OFMutableArray alloc] init];
[attrs addObject: [OFXMLAttribute attributeWithName: attrName
namespace: attrPrefix
stringValue: attr_val]];
[pool release];
[cache setToCString: ""];
[attrName release];
[attrPrefix release];
attrName = attrPrefix = nil;
*last = *i + 1;
state = OF_XMLPARSER_IN_TAG;
}
/* Expecting closing '>' */
- (void)_parseExpectCloseWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (buf[*i] == '>') {
*last = *i + 1;
state = OF_XMLPARSER_OUTSIDE_TAG;
} else
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
}
/* Expecting closing '>' or space */
- (void)_parseExpectSpaceOrCloseWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (buf[*i] == '>') {
*last = *i + 1;
state = OF_XMLPARSER_OUTSIDE_TAG;
} else if (buf[*i] != ' ' && buf[*i] != '\t' && buf[*i] != '\n' &&
buf[*i] != '\r')
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
}
/* In <! */
- (void)_parseInExclamationMarkWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (finishedParsing && buf[*i] != '-')
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
if (buf[*i] == '-')
state = OF_XMLPARSER_IN_COMMENT_OPENING;
else if (buf[*i] == '[') {
state = OF_XMLPARSER_IN_CDATA_OPENING;
level = 0;
} else if (buf[*i] == 'D') {
state = OF_XMLPARSER_IN_DOCTYPE;
level = 0;
} else
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
*last = *i + 1;
}
/* CDATA */
- (void)_parseInCDATAOpeningWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (buf[*i] != "CDATA["[level])
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
if (++level == 6) {
state = OF_XMLPARSER_IN_CDATA_1;
level = 0;
}
*last = *i + 1;
}
- (void)_parseInCDATA1WithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (buf[*i] == ']')
level++;
else
level = 0;
if (level == 2)
state = OF_XMLPARSER_IN_CDATA_2;
}
- (void)_parseInCDATA2WithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
OFAutoreleasePool *pool;
OFMutableString *cdata;
size_t len;
if (buf[*i] != '>') {
state = OF_XMLPARSER_IN_CDATA_1;
level = (buf[*i] == ']' ? 1 : 0);
return;
}
pool = [[OFAutoreleasePool alloc] init];
[cache appendCStringWithoutUTF8Checking: buf + *last
length: *i - *last];
cdata = [[cache mutableCopy] autorelease];
len = [cdata length];
[cdata deleteCharactersFromIndex: len - 2
toIndex: len];
/*
* Class swizzle the string to be immutable. We pass it as OFString*, so
* it can't be modified anyway. But not swizzling it would create a
* real copy each time -[copy] is called.
*/
cdata->isa = [OFString class];
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (CDATAHandler != NULL)
CDATAHandler(self, cdata);
else
#endif
[delegate parser: self
foundCDATA: cdata];
[pool release];
[cache setToCString: ""];
*last = *i + 1;
state = OF_XMLPARSER_OUTSIDE_TAG;
}
/* Comment */
- (void)_parseInCommentOpeningWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (buf[*i] != '-')
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
*last = *i + 1;
state = OF_XMLPARSER_IN_COMMENT_1;
level = 0;
}
- (void)_parseInComment1WithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if (buf[*i] == '-')
level++;
else
level = 0;
if (level == 2)
state = OF_XMLPARSER_IN_COMMENT_2;
}
- (void)_parseInComment2WithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
OFAutoreleasePool *pool;
OFMutableString *comment;
size_t len;
if (buf[*i] != '>')
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
pool = [[OFAutoreleasePool alloc] init];
[cache appendCStringWithoutUTF8Checking: buf + *last
length: *i - *last];
comment = [[cache mutableCopy] autorelease];
len = [comment length];
[comment deleteCharactersFromIndex: len - 2
toIndex: len];
/*
* Class swizzle the string to be immutable. We pass it as OFString*, so
* it can't be modified anyway. But not swizzling it would create a
* real copy each time -[copy] is called.
*/
comment->isa = [OFString class];
#if defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (commentHandler != NULL)
commentHandler(self, comment);
else
#endif
[delegate parser: self
foundComment: comment];
[pool release];
[cache setToCString: ""];
*last = *i + 1;
state = OF_XMLPARSER_OUTSIDE_TAG;
}
/* In <!DOCTYPE ...> */
- (void)_parseInDoctypeWithBuffer: (const char*)buf
i: (size_t*)i
last: (size_t*)last
{
if ((level < 6 && buf[*i] != "OCTYPE"[level]) ||
(level == 6 && buf[*i] != ' ' && buf[*i] != '\t' &&
buf[*i] != '\n' && buf[*i] != '\r'))
@throw [OFMalformedXMLException newWithClass: isa
parser: self];
if (level < 7 || buf[*i] == '<')
level++;
if (buf[*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 defined(OF_HAVE_PROPERTIES) && defined(OF_HAVE_BLOCKS)
if (unknownEntityHandler != NULL)
return unknownEntityHandler(self, entity);
#endif
return [delegate parser: self
foundUnknownEntityNamed: entity];
}
@end
@implementation OFObject (OFXMLParserDelegate)
- (void)parser: (OFXMLParser*)parser
foundProcessingInstructions: (OFString*)pi
{
}
- (void)parser: (OFXMLParser*)parser
didStartElement: (OFString*)name
withPrefix: (OFString*)prefix
namespace: (OFString*)ns
attributes: (OFArray*)attrs
{
}
- (void)parser: (OFXMLParser*)parser
didEndElement: (OFString*)name
withPrefix: (OFString*)prefix
namespace: (OFString*)ns
{
}
- (void)parser: (OFXMLParser*)parser
foundCharacters: (OFString*)string
{
}
- (void)parser: (OFXMLParser*)parser
foundCDATA: (OFString*)cdata
{
}
- (void)parser: (OFXMLParser*)parser
foundComment: (OFString*)comment
{
}
- (OFString*)parser: (OFXMLParser*)parser
foundUnknownEntityNamed: (OFString*)entity
{
return nil;
}
@end