diff options
Diffstat (limited to 'extensions/source/macosx/spotlight/OOoMetaDataParser.m')
-rw-r--r-- | extensions/source/macosx/spotlight/OOoMetaDataParser.m | 205 |
1 files changed, 205 insertions, 0 deletions
diff --git a/extensions/source/macosx/spotlight/OOoMetaDataParser.m b/extensions/source/macosx/spotlight/OOoMetaDataParser.m new file mode 100644 index 0000000000..1e7cac685b --- /dev/null +++ b/extensions/source/macosx/spotlight/OOoMetaDataParser.m @@ -0,0 +1,205 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <objc/objc-runtime.h> + +#import "OOoMetaDataParser.h" + +static NSSet *singleValueXMLElements; +static NSSet *multiValueXMLElements; +static NSDictionary *metaXML2MDIKeys; + +@implementation OOoMetaDataParser + ++ (void)initialize +{ + static BOOL isInitialized = NO; + + if (isInitialized == NO) { + //set up the meta elements with only one value + NSMutableSet *temp = [NSMutableSet new]; +//FIXME these should use namespace URIs and not prefixes + [temp addObject:@"dc:title"]; + [temp addObject:@"dc:description"]; + [temp addObject:@"meta:user-defined"]; + singleValueXMLElements = [[NSSet setWithSet:temp] retain]; + + //set up the meta elements that can have more than one value + [temp removeAllObjects]; + [temp addObject:@"dc:subject"]; + [temp addObject:@"meta:keyword"]; + [temp addObject:@"meta:initial-creator"]; + [temp addObject:@"dc:creator"]; + multiValueXMLElements = [[NSSet setWithSet:temp] retain]; + [temp release]; + + //set up the map to store the values with the correct MDI keys + NSMutableDictionary *tempDict = [NSMutableDictionary new]; + [tempDict setObject:(NSString*)kMDItemTitle forKey:@"dc:title"]; + [tempDict setObject:(NSString*)kMDItemDescription forKey:@"dc:description"]; + [tempDict setObject:(NSString*)kMDItemKeywords forKey:@"dc:subject"]; + [tempDict setObject:(NSString*)kMDItemAuthors forKey:@"meta:initial-creator"]; + [tempDict setObject:(NSString*)kMDItemAuthors forKey:@"dc:creator"]; + [tempDict setObject:(NSString*)kMDItemKeywords forKey:@"meta:keyword"]; + [tempDict setObject:@"org_openoffice_opendocument_custominfo1" forKey:@"Info 1"]; + [tempDict setObject:@"org_openoffice_opendocument_custominfo2" forKey:@"Info 2"]; + [tempDict setObject:@"org_openoffice_opendocument_custominfo3" forKey:@"Info 3"]; + [tempDict setObject:@"org_openoffice_opendocument_custominfo4" forKey:@"Info 4"]; + metaXML2MDIKeys = [[NSDictionary dictionaryWithDictionary:tempDict] retain]; + [tempDict release]; + + isInitialized = YES; + } +} + +- (id)init +{ + if ((self = [super init]) != nil) { + shouldReadCharacters = NO; + textCurrentElement = nil; + + return self; + } + + return nil; +} + +- (void)parseXML:(NSData*)data intoDictionary:(NSMutableDictionary*)dict +{ + metaValues = dict; + + //NSLog(@"data: %@ %d", data, [data length]); + + //init parser settings + shouldReadCharacters = NO; + + NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data]; + + [parser setDelegate:self]; + + [parser setShouldResolveExternalEntities:NO]; + [parser parse]; + + [parser release]; + + //NSLog(@"finished parsing meta"); +} + +- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict +{ + (void) parser; // unused + (void) namespaceURI; // FIXME this should not be ignored but should be used + // instead of meta: prefix in the comparison below! + (void) qualifiedName; // unused +// NSLog(@"<%@>", elementName); + if ([singleValueXMLElements containsObject:elementName] == YES) { + shouldReadCharacters = YES; + } else if ([multiValueXMLElements containsObject:elementName] == YES) { + shouldReadCharacters = YES; + } else { + //we are not interested in this element + shouldReadCharacters = NO; + return; + } + + if (shouldReadCharacters == YES) { + textCurrentElement = [NSMutableString new]; + isCustom = [elementName isEqualToString:@"meta:user-defined"]; + if (isCustom == YES) { + customAttribute = [[attributeDict objectForKey:@"meta:name"] retain]; + //NSLog(customAttribute); + } + } + + //NSLog(@"start element %@", elementName); +} + +- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName +{ + (void) parser; // unused + (void) namespaceURI; // unused + (void) qName; // unused +// NSLog(@"</%@>", elementName); + if (shouldReadCharacters == YES) { + NSString *mdiName = nil; + if (isCustom == YES) { + mdiName = (NSString*)[metaXML2MDIKeys objectForKey:customAttribute]; + } else { + mdiName = (NSString*)[metaXML2MDIKeys objectForKey:elementName]; + } + //NSLog(@"mdiName: %@", mdiName); + + if (mdiName == nil) { + return; + } + + if ([singleValueXMLElements containsObject:elementName] == YES) { + [metaValues setObject:textCurrentElement forKey:mdiName]; + } else { + // must be multi-value + NSMutableArray *arr = [metaValues objectForKey:mdiName]; + if (arr == nil) { + // we have no array yet, create it + arr = [[NSMutableArray new] autorelease]; + // and store it + [metaValues setObject:arr forKey:mdiName]; + } + // only store an element once, no need for duplicates + if ([arr containsObject:textCurrentElement] == NO) { + [arr addObject:textCurrentElement]; + } + } + // cleanup part 1 + [textCurrentElement release]; + if (isCustom == YES) { + [customAttribute release]; + } + } + + //cleanup part 2 + shouldReadCharacters = NO; + isCustom = NO; +} + +- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string +{ + (void) parser; // unused +// NSLog(@"%@", string); + if (shouldReadCharacters == NO) { + return; + } + + // this delegate method might be called several times for a single element, + // so we have to collect the received data + [textCurrentElement appendString:string]; + + //NSLog(@"chars read: %@", string); +} + +- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError +{ + //NSLog(@"parsing finished with error"); + NSLog(@"Error %li, Description: %@, Line: %li, Column: %li", (long) [parseError code], + [[parser parserError] localizedDescription], (long) [parser lineNumber], + (long) [parser columnNumber]); +} + +@end + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |