How to convert text file to xml in xcode - iphone

Question

I have a big text file that I want to convert into Xcode. I added the text file in the main bundle (drag and drop) into my project . I can see the text file viewDidLoad.
But I like to convert it to XML file. For instance my file looks like :
asasasasasas
wewewewewewe
qwqwqwqwqwqw
xyz_ 22 aaaaaaaaaaa
fgfgfgfgfgfgfg
ererererererer
abc_ 12 bbbbbbbbbb
jkjkjkjkjkjkjk
lalallalalalal
In the above mentioned, I want to eliminate the first 3 lines, to start from xyz_ 22 as (parent), jkjkjkj as child lalalala as a child.
I need only the idea how to implement this ... I'll write the code :)
mycode:
- (IBAction)readUsingObjectiveC:(id)pId {
NSString * zStr = [NSString stringWithContentsOfFile:#"/Users/dd007/Desktop/abc.txt" encoding:NSASCIIStringEncoding error:NULL];
NSLog(#"readUsingObjectiveC zStr=\n%#",zStr);
// now to extract the data line by line
NSArray * zAryOfLines = [zStr componentsSeparatedByString:#"\n"];
if([zAryOfLines count] == 0)
{
NSLog(#"readUsingObjectiveC zAryOfLines count = 0");
return;
}
//for (int i=0; i<([zAryOfLines count]-30); ++i)
for ( int i=30; i<zAryOfLines ; i++)
{
if([[zAryOfLines objectAtIndex:i] isEqualToString:#"xyz_ "])
{
NSLog(#"<msg1>%#<msg1/>\n",[zAryOfLines objectAtIndex:i]);
NSLog(#"<msg2>%#<msg2/>\n",[zAryOfLines objectAtIndex:i+1]);
NSLog(#"<msg3>%#<msg3/>\n",[zAryOfLines objectAtIndex:i+2]);
[zArrayOfLines writeToFIle:#"/.....documents/..save.xml" automatically:YES encodingNSASCIIStringEncoding error:NULL];
}
}
I am getting convert into xml format but i like to save the file in .xml .. but i am getting error could any one tell me where i am doing mistake ??????

Answer 1

You can't convert a file to xml using XCode, you have two options:
You can create a python or ruby script that parses your file and makes a XML file, and then use a xml parser,
Or you can create a class that parses your plain file with the rules you want.

Answer 2

I think you want to transform a .txt to a .xml so for make this i read the .txt to a nsstring i cut this into a NSArray with componentsSeparatedByString:#"\n" method of NSString (take care of \r character) and after just don't take line you don't want and create a new NSString for add tag XML to your line if you now where place the good tag or check it with the contains of your line in the NSArray for finish just saved in new file with extension .xml.
If you need help for write code like i describe say it.

Answer 3

There is no option for converting the text to xml directly in iOS.
But you can do it by passing the data manually.
You can use either libXml framework or GDataXml for doing this.
For libXml xml generation sample code go to this link and download Chapter 10.zip
Please check this tutorial for Read and Write XML Documents with GDataXML
Also TCMXMLWriter is an opensource xmlgenerator :

Answer 4

I think a code like this work for your example :
NSString *contentFile = [[NSString alloc] initWithContentsOfFile:pathFile encoding:NSUTF8StringEncoding error:nil];
NSArray *lineFile = [contentFile componentsSeparatedByString:#"\n"];
NSMutableString *xmlFile = [[NSMutableString alloc] init];
For(int i = 3; i < lineFile.count; i++)//i = 3 for don't take the 3 first line
{
if ([((NSString *)[lineFile objectAtIndex:i]) rangedOfString:#"test"].location != NSNotFound)
{
xmlFile = [NSString stringWithFormat:#"%#<nameTag>%#</nameTag>", xmlFile, (NSString *)[lineFile objectAtIndex:i]];
}
else if ...
}
And save he nsstring in new file. Possible in loop to make by number like if i is multiple of 3 of 4 etc...