78 lines
3.8 KiB
Objective-C
78 lines
3.8 KiB
Objective-C
//
|
|
// MIT License (MIT)
|
|
//
|
|
// Copyright (c) 2016 Brent Simmons
|
|
// Copyright (c) 2018 Oleg Geier
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
// this software and associated documentation files (the "Software"), to deal in
|
|
// the Software without restriction, including without limitation the rights to
|
|
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
// of the Software, and to permit persons to whom the Software is furnished to do
|
|
// so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
// SOFTWARE.
|
|
|
|
@import Foundation;
|
|
|
|
/*Thread-safe, not re-entrant.
|
|
|
|
Calls to the delegate will happen on the same thread where the parser runs.
|
|
|
|
This is a low-level streaming XML parser, a thin wrapper for libxml2's SAX parser. It doesn't do much Foundation-ifying quite on purpose -- because the goal is performance and low memory use.
|
|
|
|
This class is not meant to be sub-classed. Use the delegate methods.
|
|
*/
|
|
|
|
|
|
@class RSSAXParser;
|
|
|
|
/// Use @c xmlChar instead of @c unsigned @c char for all method parameters.
|
|
@protocol RSSAXParserDelegate <NSObject>
|
|
|
|
+ (BOOL)isHTMLParser; // reusing class method of RSXMLParser delegate
|
|
|
|
@optional
|
|
|
|
// Called when parsing HTML
|
|
- (void)saxParser:(RSSAXParser *)SAXParser XMLStartElement:(const unsigned char *)localName attributes:(const unsigned char **)attributes;
|
|
- (void)saxParser:(RSSAXParser *)SAXParser XMLEndElement:(const unsigned char *)localName;
|
|
|
|
// Called when parsing XML (Atom, RSS, OPML)
|
|
- (void)saxParser:(RSSAXParser *)SAXParser XMLStartElement:(const unsigned char *)localName prefix:(const unsigned char *)prefix uri:(const unsigned char *)uri numberOfNamespaces:(NSInteger)numberOfNamespaces namespaces:(const unsigned char **)namespaces numberOfAttributes:(NSInteger)numberOfAttributes numberDefaulted:(int)numberDefaulted attributes:(const unsigned char **)attributes;
|
|
- (void)saxParser:(RSSAXParser *)SAXParser XMLEndElement:(const unsigned char *)localName prefix:(const unsigned char *)prefix uri:(const unsigned char *)uri;
|
|
|
|
// Called regardless of parser type
|
|
- (void)saxParser:(RSSAXParser *)SAXParser XMLCharactersFound:(const unsigned char *)characters length:(NSUInteger)length;
|
|
- (void)saxParserDidReachEndOfDocument:(RSSAXParser *)SAXParser; // If canceled, may not get called (but might).
|
|
- (NSString *)saxParser:(RSSAXParser *)SAXParser internedStringForName:(const unsigned char *)name prefix:(const unsigned char *)prefix; // Okay to return nil. Prefix may be nil.
|
|
- (NSString *)saxParser:(RSSAXParser *)SAXParser internedStringForValue:(const void *)bytes length:(NSUInteger)length;
|
|
@end
|
|
|
|
|
|
|
|
@interface RSSAXParser : NSObject
|
|
@property (nonatomic, strong, readonly) NSData *currentCharacters;
|
|
@property (nonatomic, strong, readonly) NSString *currentString;
|
|
@property (nonatomic, strong, readonly) NSString *currentStringWithTrimmedWhitespace;
|
|
|
|
- (instancetype)initWithDelegate:(id<RSSAXParserDelegate>)delegate;
|
|
|
|
- (void)parseBytes:(const void *)bytes numberOfBytes:(NSUInteger)numberOfBytes;
|
|
- (void)cancel;
|
|
- (void)beginStoringCharacters;
|
|
|
|
- (NSDictionary *)attributesDictionary:(const unsigned char **)attributes numberOfAttributes:(NSInteger)numberOfAttributes;
|
|
- (NSDictionary *)attributesDictionaryHTML:(const unsigned char **)attributes;
|
|
|
|
@end
|