XML Tag xcode save file - iphone

Question

I would like to output tags for each line with different tag names and want to save each in a file. I can write the file, but it is over writing. How do I write each and every line in a different file?
Input:
english titanic
leondradicapro kate
German Hotel hüßßan
tomhanks angleina
Output:
<language>english<language/>
<movie>titanic<movie/>
<Actor>leondradiacpro<Actor/>
<Actress>kate<Actress/>
<language>German<language/>
...
Code:
for (NSString *str in lineFile)
{
if([str hasPrefix:#"english "])
{
NSMutableArray *dd = [[NSMutableArray alloc] initWithArray:[[str stringByReplacingOccurrencesOfString:#"english" withString:#""] componentsSeparatedByString:#" "]];
NSArray *tag = [NSArray aarrayWithObjects:#"er",#"langauge",#"movie",#"actor",#"kate",nil];
NSMutableString *output =[[NSMutableString alloc] init];
NSUInteger tagindex =0;
for (NSString *words in word)
{
if(tagindex >=[tag count])
{
NSLog(#"dad");
break;
}
[output appendFormat:#"<%#>%#<%#>\n", [tag objectAtIndex:tagindex],words,[tag objectAtIndex:tagindex]];
NSLog(#"%#",output);
[output writeToFile:#"/Users/xx/Desktop/homework.txt" atomically:YES encoding:NSASCIIStringEncoding error:NULL];
tagindex++;
now i can able to read only the language and movie (1st line) how i can add second line and tag also

Answer 1

you need write file with c method, maybe the following method can help you
-(void)writeToFile:(NSString *)str:(NSString *) fileName
{
NSData* data = [str dataUsingEncoding:NSUTF8StringEncoding];
NSString *filePath=[NSString stringWithFormat:#"%#",fileName];
if([[NSFileManager defaultManager] fileExistsAtPath:filePath] == NO){
NSLog(#"file not exist,create it...");
[[NSFileManager defaultManager] createFileAtPath:filePath contents:nil attributes:nil];
}else {
NSLog(#"file exist!!!");
}
FILE *file = fopen([filePath UTF8String], [#"ab+" UTF8String]);
if(file != NULL){
fseek(file, 0, SEEK_END);
}
int readSize = [data length];
fwrite((const void *)[data bytes], readSize, 1, file);
fclose(file);
}