1/**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements.  See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership.  The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License.  You may obtain a copy of the License at
10 *
11 *   http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied.  See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24#import "OOoContentDataParser.h"
25
26@implementation OOoContentDataParser
27
28- (id)init
29{
30    if ((self = [super init]) != nil) {
31        shouldReadCharacters = NO;
32        textContent = nil;
33        runningTextContent = nil;
34
35        return self;
36    }
37
38    return nil;
39}
40
41- (void)parseXML:(NSData*)data intoDictionary:(NSMutableDictionary*)dict
42{
43    mdiValues = dict;
44
45    //NSLog(@"data: %@ %d", data, [data length]);
46
47    //init parser settings
48    shouldReadCharacters = NO;
49
50    NSXMLParser *parser = [[NSXMLParser alloc] initWithData:data];
51
52    [parser setDelegate:self];
53    [parser setShouldResolveExternalEntities:NO];
54    [parser parse];
55
56    [parser release];
57
58    //NSLog(@"finished");
59}
60
61- (void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName attributes:(NSDictionary *)attributeDict
62{
63    // all text content is stored inside <text:p> elements
64    if ([elementName isEqualToString:@"text:p"] == YES) {
65        runningTextContent = [NSMutableString new];
66        shouldReadCharacters = YES;
67        //NSLog(@"start");
68    } else {
69        return;
70    }
71
72    //NSLog(@"start element %@", elementName);
73}
74
75- (void)parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
76{
77    if (shouldReadCharacters == TRUE) {
78        if (textContent == nil) {
79            textContent = [NSMutableString new];
80        } else if ([runningTextContent isEqualToString:@""] == NO) {
81            // separate by whitespace
82            [textContent appendString:@" "];
83        }
84        //NSLog(@"end");
85
86        [textContent appendString:[NSString stringWithString:runningTextContent]];
87        [runningTextContent release];
88    }
89    shouldReadCharacters = NO;
90}
91
92- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string
93{
94    if (shouldReadCharacters == NO) {
95        return;
96    }
97    //NSLog(string);
98
99    [runningTextContent appendString:string];
100
101    //NSLog(@"currentElement: %@", currentElement);
102    //NSLog(@"read: %@", string);
103
104}
105
106- (void)parser:(NSXMLParser *)parser parseErrorOccurred:(NSError *)parseError
107{
108    //NSLog(@"parsing finished with error");
109    NSLog([NSString stringWithFormat:@"An error occured parsing the document. (Error %i, Description: %@, Line: %i, Column: %i)", [parseError code],
110        [[parser parserError] localizedDescription], [parser lineNumber],
111        [parser columnNumber]]);
112
113    if (runningTextContent != nil) {
114        [runningTextContent release];
115    }
116    if (textContent != nil) {
117        [textContent release];
118    }
119}
120
121- (void)parserDidEndDocument:(NSXMLParser *)parser
122{
123    if (textContent != nil && [textContent length] > 0) {
124        [mdiValues setObject:[NSString stringWithString:textContent] forKey:(NSString*)kMDItemTextContent];
125        [textContent release];
126    }
127}
128
129@end
130