Re: IO formatted without discarding initial whitespace?

[Rob Mahurin]

On Jul 15, 2008, at 11:29 AM, OctIce wrote:
> I wonder if there is an easy way not to disregard initial  
> whitespace in
> formated IO with fscanf.
> My problem:
> I have an fixed format ascii file, where each number has a certain  
> space, 2
> character, 3 characters, etc.
> lets take an easy example, 5 numbers per line with a fixed width of
> 3,3,2,2,3 characters:
> 1112223344555
>    1   2  3  4   5
>    1222  344   5
> The result I want to have is
> 111,222,33,44,555
> 1,2,3,4,5
> 1,222,3,44,5

If each line is a fixed width, you can use fread() to load (big  
chunks of) the file into memory as a matrix of characters.  You can  
then feed slices of this array to char() and str2num() to produce  
arrays of numbers, without line-by-line looping.

For what it's worth, your or my email client mangled the formatting  
on your example.

Cheers,
Rob

--
Rob Mahurin
Dept. of Physics & Astronomy
University of Tennessee         phone: 865 207 2594
Knoxville, TN 37996             email: address@hidden