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Refactored OPML

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relikd
2018-12-16 19:18:49 +01:00
parent 3118747fa0
commit f9e672661a
21 changed files with 249 additions and 569 deletions
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183
RSXML/RSOPMLParser.m
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@@ -11,8 +11,6 @@
#import "RSXMLData.h"
#import "RSSAXParser.h"
#import "RSOPMLItem.h"
#import "RSOPMLDocument.h"
#import "RSOPMLAttributes.h"
#import "RSXMLError.h"
@@ -27,7 +25,7 @@ void RSParseOPML(RSXMLData *xmlData, RSParsedOPMLBlock callback) {
RSOPMLParser *parser = [[RSOPMLParser alloc] initWithXMLData:xmlData];
RSOPMLDocument *document = parser.OPMLDocument;
RSOPMLItem *document = parser.opmlDocument;
NSError *error = parser.error;
dispatch_async(dispatch_get_main_queue(), ^{
@@ -41,9 +39,9 @@ void RSParseOPML(RSXMLData *xmlData, RSParsedOPMLBlock callback) {
@interface RSOPMLParser () <RSSAXParserDelegate>
@property (nonatomic, readwrite) RSOPMLDocument *OPMLDocument;
@property (nonatomic, readwrite) RSOPMLItem *opmlDocument;
@property (nonatomic, readwrite) NSError *error;
@property (nonatomic) NSMutableArray *itemStack;
@property (nonatomic) NSMutableArray<RSOPMLItem*> *itemStack;
@end
@@ -72,31 +70,28 @@ void RSParseOPML(RSXMLData *xmlData, RSParsedOPMLBlock callback) {
@autoreleasepool {
if (![self canParseData:XMLData.data]) {
if ([self canParseData:XMLData.data]) {
RSSAXParser *parser = [[RSSAXParser alloc] initWithDelegate:self];
self.itemStack = [NSMutableArray new];
self.opmlDocument = [RSOPMLItem new];
[self.itemStack addObject:self.opmlDocument];
[parser parseData:XMLData.data];
[parser finishParsing];
} else {
NSString *filename = nil;
NSURL *url = [NSURL URLWithString:XMLData.urlString];
if (url && url.isFileURL) {
filename = url.path.lastPathComponent;
}
if ([XMLData.urlString hasPrefix:@"http"]) {
filename = XMLData.urlString;
}
if (!filename) {
filename = XMLData.urlString;
}
self.error = RSOPMLWrongFormatError(filename);
return;
self.error = RSXMLMakeError(RSXMLErrorFileNotOPML, filename);
}
RSSAXParser *parser = [[RSSAXParser alloc] initWithDelegate:self];
self.itemStack = [NSMutableArray new];
self.OPMLDocument = [RSOPMLDocument new];
[self pushItem:self.OPMLDocument];
[parser parseData:XMLData.data];
[parser finishParsing];
}
}
@@ -122,12 +117,12 @@ void RSParseOPML(RSXMLData *xmlData, RSParsedOPMLBlock callback) {
}
NSRange opmlRange = [s rangeOfString:@"<opml" options:NSCaseInsensitiveSearch range:rangeToSearch];
if (opmlRange.length < 1) {
if (opmlRange.location == NSNotFound) {
return NO;
}
NSRange outlineRange = [s rangeOfString:@"<outline" options:NSLiteralSearch range:rangeToSearch];
if (outlineRange.length < 1) {
if (outlineRange.location == NSNotFound) {
return NO;
}
@@ -139,11 +134,6 @@ void RSParseOPML(RSXMLData *xmlData, RSParsedOPMLBlock callback) {
return YES;
}
- (void)pushItem:(RSOPMLItem *)item {
[self.itemStack addObject:item];
}
- (void)popItem {
@@ -158,28 +148,27 @@ void RSParseOPML(RSXMLData *xmlData, RSParsedOPMLBlock callback) {
}
- (RSOPMLItem *)currentItem {
return self.itemStack.lastObject;
}
#pragma mark - RSSAXParserDelegate
static const char *kOutline = "outline";
static const char kOutlineLength = 8;
static const char *kHead = "head";
static const char kHeadLength = 5;
static BOOL isHead = NO;
- (void)saxParser:(RSSAXParser *)SAXParser XMLStartElement:(const xmlChar *)localName prefix:(const xmlChar *)prefix uri:(const xmlChar *)uri numberOfNamespaces:(NSInteger)numberOfNamespaces namespaces:(const xmlChar **)namespaces numberOfAttributes:(NSInteger)numberOfAttributes numberDefaulted:(int)numberDefaulted attributes:(const xmlChar **)attributes {
if (!RSSAXEqualTags(localName, kOutline, kOutlineLength)) {
return;
if (RSSAXEqualTags(localName, kOutline, kOutlineLength)) {
RSOPMLItem *item = [RSOPMLItem new];
item.attributes = [SAXParser attributesDictionary:attributes numberOfAttributes:numberOfAttributes];
[self.itemStack.lastObject addChild:item];
[self.itemStack addObject:item];
} else if (RSSAXEqualTags(localName, kHead, kHeadLength)) {
isHead = YES;
} else if (isHead) {
[SAXParser beginStoringCharacters];
}
RSOPMLItem *item = [RSOPMLItem new];
item.attributes = [SAXParser attributesDictionary:attributes numberOfAttributes:numberOfAttributes];
[[self currentItem] addChild:item];
[self pushItem:item];
}
@@ -187,31 +176,15 @@ static const char kOutlineLength = 8;
if (RSSAXEqualTags(localName, kOutline, kOutlineLength)) {
[self popItem];
} else if (RSSAXEqualTags(localName, kHead, kHeadLength)) {
isHead = NO;
} else if (isHead) {
NSString *key = [NSString stringWithFormat:@"%s", localName];
[self.itemStack.lastObject setAttribute:[SAXParser currentString] forKey:key];
}
}
static const char *kText = "text";
static const NSInteger kTextLength = 5;
static const char *kTitle = "title";
static const NSInteger kTitleLength = 6;
static const char *kDescription = "description";
static const NSInteger kDescriptionLength = 12;
static const char *kType = "type";
static const NSInteger kTypeLength = 5;
static const char *kVersion = "version";
static const NSInteger kVersionLength = 8;
static const char *kHTMLURL = "htmlUrl";
static const NSInteger kHTMLURLLength = 8;
static const char *kXMLURL = "xmlUrl";
static const NSInteger kXMLURLLength = 7;
- (NSString *)saxParser:(RSSAXParser *)SAXParser internedStringForName:(const xmlChar *)name prefix:(const xmlChar *)prefix {
if (prefix) {
@@ -219,77 +192,37 @@ static const NSInteger kXMLURLLength = 7;
}
size_t nameLength = strlen((const char *)name);
if (nameLength == kTextLength - 1) {
if (RSSAXEqualTags(name, kText, kTextLength)) {
return OPMLTextKey;
}
if (RSSAXEqualTags(name, kType, kTypeLength)) {
return OPMLTypeKey;
}
switch (nameLength) {
case 4:
if (RSSAXEqualTags(name, "text", 5)) return OPMLTextKey;
if (RSSAXEqualTags(name, "type", 5)) return OPMLTypeKey;
break;
case 5:
if (RSSAXEqualTags(name, "title", 6)) return OPMLTitleKey;
break;
case 6:
if (RSSAXEqualTags(name, "xmlUrl", 7)) return OPMLXMLURLKey;
break;
case 7:
if (RSSAXEqualTags(name, "version", 8)) return OPMLVersionKey;
if (RSSAXEqualTags(name, "htmlUrl", 8)) return OPMLHMTLURLKey;
break;
case 11:
if (RSSAXEqualTags(name, "description", 12)) return OPMLDescriptionKey;
break;
}
else if (nameLength == kTitleLength - 1) {
if (RSSAXEqualTags(name, kTitle, kTitleLength)) {
return OPMLTitleKey;
}
}
else if (nameLength == kXMLURLLength - 1) {
if (RSSAXEqualTags(name, kXMLURL, kXMLURLLength)) {
return OPMLXMLURLKey;
}
}
else if (nameLength == kVersionLength - 1) {
if (RSSAXEqualTags(name, kVersion, kVersionLength)) {
return OPMLVersionKey;
}
if (RSSAXEqualTags(name, kHTMLURL, kHTMLURLLength)) {
return OPMLHMTLURLKey;
}
}
else if (nameLength == kDescriptionLength - 1) {
if (RSSAXEqualTags(name, kDescription, kDescriptionLength)) {
return OPMLDescriptionKey;
}
}
return nil;
}
static const char *kRSSUppercase = "RSS";
static const char *kRSSLowercase = "rss";
static const NSUInteger kRSSLength = 3;
static NSString *RSSUppercaseValue = @"RSS";
static NSString *RSSLowercaseValue = @"rss";
static NSString *emptyString = @"";
static BOOL equalBytes(const void *bytes1, const void *bytes2, NSUInteger length) {
return memcmp(bytes1, bytes2, length) == 0;
}
- (NSString *)saxParser:(RSSAXParser *)SAXParser internedStringForValue:(const void *)bytes length:(NSUInteger)length {
if (length < 1) {
return emptyString;
return @"";
} else if (length == 3) {
if (RSSAXEqualBytes(bytes, "RSS", 3)) return @"RSS";
if (RSSAXEqualBytes(bytes, "rss", 3)) return @"rss";
}
if (length == kRSSLength) {
if (equalBytes(bytes, kRSSUppercase, kRSSLength)) {
return RSSUppercaseValue;
}
else if (equalBytes(bytes, kRSSLowercase, kRSSLength)) {
return RSSLowercaseValue;
}
}
return nil;
}