RE: [Newbie] writing plain text to a file
RE: [Newbie] writing plain text to a file
- Subject: RE: [Newbie] writing plain text to a file
- From: "Mondragon, Ian" <email@hidden>
- Date: Fri, 28 Feb 2003 16:59:17 -0600
chris,
here's a cocoa-ized quickie for you, then <grin>.
use fprintf(fp, ...) to print to the file, and use [[obj description]
cString] to get char* representations of objects (cuz the %@ format string
used in NSLog() just calls an object's -description method...which you
should always implement in your own objects <wink>).
- ian
--- snip ---
- (FILE *)openFile:(NSString *)filename mode:(NSString *)mode
{
FILE *fp;
// man fopen() for modes - add some error checking, too!
if (NULL == (fp = fopen([filename cString]), [mode cString])))
{
return fp;
}
}
- (void)closeFile:(FILE *)fp
{
if (NULL != fp)
{
fclose(fp);
}
}
--- snip ---
>
-----Original Message-----
>
From: Chris Garaffa [SMTP:email@hidden]
>
Sent: Friday, February 28, 2003 4:30 PM
>
To: email@hidden
>
Subject: Re: [Newbie] writing plain text to a file
>
>
Ian -
>
On Friday, February 28, 2003, at 04:46 PM, Mondragon, Ian wrote:
>
> why not just use standard C FILE* pointers? man fopen(), man fclose()?
>
>
Well, one, because I don't know C ;) (I come from a C++ background),
>
and two, I'm really trying to learn Cocoa as well as I can.
>
I'm going to look into this method, though, because this program has to
>
be ready to go in a week or so.
>
>
--
>
Chris Garaffa
>
email@hidden
>
http://moondrop.heli0s.net/
>
>
> - ian
>
>
>
>> -----Original Message-----
>
>> From: Chris Garaffa [SMTP:email@hidden]
>
>> Sent: Friday, February 28, 2003 3:28 PM
>
>> To: email@hidden
>
>> Subject: [Newbie] writing plain text to a file
>
>>
>
>> Hi all,
>
>>
>
>> I've been programming Cocoa for a couple months now, but getting
>
>> really
>
>> into it the last 2 or 3 weeks. I've got this program which generates a
>
>> random number in a specified interval, and writes that number, and the
>
>> next 100 or so numbers above it. It needs to write all these numbers
>
>> to
>
>> a file, each on its own line. What I do now is create an
>
>> NSMutableArray
>
>> to hold all the numbers, and then [numArray writeToFile:
>
>> numFileLocation atomically:YES]. This works... it creates the file and
>
>> the data is in there, but I (and my users!) would rather have just a
>
>> plain text file with one number on each line instead of this XML file.
>
>> I did some research and found a lot of stuff about NSFileHandle,
>
>> NSFileManager and NSData but I couldn't figure out the best way to do
>
>> this. Can someone point me in the right direction? Thanks!
>
>>
>
>> --
>
>> Chris Garaffa
>
>> email@hidden
>
>> http://moondrop.heli0s.net/
>
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