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From: Tracy on 9 Jun 2010 13:00
I have a blob of ascii data that i am reading from a tcpip object. The data 6 columns of fixed with ascii and up to 64K rows. i read it in as a <1x5504> char (for just 16 rows). I want to create a 6xM array of cells each containing the fields of the data. I have tried using textscan on the data but it only reads the 1st field.

i.e.

d=textscan(data, '%s %s %s %s %s %s');

any one have any tips??
From: Walter Roberson on 9 Jun 2010 13:08
Tracy wrote:
> I have a blob of ascii data that i am reading from a tcpip object. The
> data 6 columns of fixed with ascii and up to 64K rows. i read it in as
> a <1x5504> char (for just 16 rows). I want to create a 6xM array of
> cells each containing the fields of the data. I have tried using
> textscan on the data but it only reads the 1st field.
>
> i.e.
>
> d=textscan(data, '%s %s %s %s %s %s');
>
> any one have any tips??

Could you give an example of a couple of lines, and if the fields might
happen to look like numbers please indicate whether you want to store
them as strings or as numbers.
From: Tracy on 9 Jun 2010 13:31
sure - and thanks for the quick response

The data looks like this - i want all of the columns to be strings. this is just 1 row. there can be up to 64K rows.

DataPat CRIT 01/01/70:00:00:28 thunder.cpp 0516 Thunder 0 Alignment failed 0x0
From: Tracy on 9 Jun 2010 13:36
"Tracy " <tracy(a)stratalight.com> wrote in message <huoj4q$dv5$1(a)fred.mathworks.com>...
> sure - and thanks for the quick response
>
> The data looks like this - i want all of the columns to be strings. this is just 1 row. there can be up to 64K rows.
>
> DataPat CRIT 01/01/70:00:00:28 thunder.cpp 0516 Thunder 0 Alignment failed 0x0

I should have mentioned that this is 6 columns which are fixed length -

8 chars
8 chars
32 chars
32 chars
6 chars
256 chars

it's not apparent from the display that this is the case - they are null terminated.
From: Walter Roberson on 9 Jun 2010 14:19
Tracy wrote:
> "Tracy " <tracy(a)stratalight.com> wrote in message
> <huoj4q$dv5$1(a)fred.mathworks.com>...
>> sure - and thanks for the quick response
>>
>> The data looks like this - i want all of the columns to be strings.
>> this is just 1 row. there can be up to 64K rows.
>>
>> DataPat CRIT 01/01/70:00:00:28
>> thunder.cpp 0516 Thunder 0 Alignment failed 0x0
>
> I should have mentioned that this is 6 columns which are fixed length -
> 8 chars
> 8 chars
> 32 chars
> 32 chars
> 6 chars
> 256 chars
>
> it's not apparent from the display that this is the case - they are null
> terminated.

Null termination is usually a signal to end the string; I'm not surprised only
a single field was returned.

Try something like this,

textscan('%8c\0%8c\0%32c\0%32c\0%6c\0%256c', ...
'Whitespace', '', 'Delimeter', '');
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