textfile question

[Fritter-my-wig]

Of all the silly things...

I have not yet figured out how to read/write a simple textfile. NS(Un)Archive is a nice way to load/save files, but if the file I want to read is already in text form then I don't see a good way to do it. The best thought I've had (I haven't tried it yet) is NSFile<->NSData<->NSString, but there must be a better way to do it.

What I would really like is an equivalent to NS(Un)Archive that reads/writes in human-readable text form, at least for those objects which can be easily expressed that way.

Any thoughts/suggestions would be appreciated.

 

[endian]

That's basically what you do. Look at the TextEdit source, in DocumentReadWrite.m

eg.

NSData *data = [[textStorage string] dataUsingEncoding:encoding];
success = data && [data writeToFile:actualFileNameToSave atomically:YES];

 

[rharder]

NSString has a method for creating a string from the contents of a file. I don't remember if it has an inverse operation for writing.

-Rob

 

[shtjonathan]

You can use the following methods:

– (BOOL)writeToFileNSString *)path
atomicallyBOOL)flag

– (id)initWithContentsOfFileNSString *)path

e.g.:

// Writing string to file:
NSString * someString = @"Contents of string...";
[someString writeToFile: @"file.txt" atomically: NO];

// Reading file into string:
NSString * otherString = [[NSString alloc] initWithContentsOfFile: @"file.txt"];

Good luck,
Samuel


Edit: disabled smilies

 

[Fritter-my-wig]

Thanks for the tips, all. It's all there in the manuals...if you can find it.

(finding it tends to be the hard part)