Re: [Q] NSScanner -> \t\t how to fix??
Re: [Q] NSScanner -> \t\t how to fix??
- Subject: Re: [Q] NSScanner -> \t\t how to fix??
- From: Clark Cox <email@hidden>
- Date: Sat, 7 Feb 2004 11:16:59 -0500
On 2004/02/07, at 10:03, Rogier Bosch wrote:
>
OK, that makes sence, but:
>
>
i have now, something like:
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NString *row, *field;
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// the row is filled with an other loop (ascii file row)
>
>
NSScanner *rowscan = [[NSScanner alloc]
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setCharactersToBeSkipped:nil];
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[rowscan initWithString:row]; // setCharactersToBeSkipped:nil];
Try this instead:
NSScanner *rowscan = [[NSScanner alloc] initWithString:row];
[rowscan setCharactersToBeSkipped: [NSCharacterSet
characterSetWithCharactersInString: @""]];
>
>
while ( [ rowscan scanUpToString:@"\t" intoString:&field] ) {
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// do something
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CFShow( field );
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}
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>
>
When i use the code above it doesnt return any field! :(
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>
So whats wrong?
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>
thx.
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>
Roger
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>
>
On 6-feb-04, at 19:58, Jonathan E. Jackel wrote:
>
>
> This is one of those hidden things in the docs. You can set which
>
> characters are skipped by the scanner. The default set of characters
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> to
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> skip is the whitespace and newline character set. Sneaky.
>
>
>
> To make sure characters are not skipped, use [scanner
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> setCharactersToBeSkipped:nil], or construct a character set that has
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> the
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> characters you want skipped and doesn't have the ones you want
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> scanned.
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>
>
> Jonathan
>
>
>
>> -----Original Message-----
>
>> From: email@hidden
>
>> [mailto:email@hidden]On Behalf Of Rogier Bosch
>
>> Sent: Friday, February 06, 2004 8:26 AM
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>> To: email@hidden
>
>> Subject: [Q] NSScanner -> \t\t how to fix??
>
>>
>
>>
>
>> Hay,
>
>>
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>> When i use the NSScanner on a flat file, it skips double \t\t (tab
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>> char).
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>>
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>> Is there anyway to NOT skip this char?
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>>
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>> I ask this because in the 1st line of the flat file i have the
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>> columnnames. The next rows contains the data lines (just a CSV file).
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>> So when parsing the file i do have the column-headers but i can't
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>> keep
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>> it in sync with the data fields (since some fields are empty, e.a
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>> \t\t).
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>>
>
>>
>
>> Thanks,
>
>>
>
>> Rogier
>
>>
>
>> [demime 0.98b removed an attachment of type
>
>> application/pkcs7-signature which had a name of smime.p7s]
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>
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--
Clark S. Cox III
email@hidden
http://homepage.mac.com/clarkcox3/
http://homepage.mac.com/clarkcox3/blog/B1196589870/index.html
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