[Scilab-users] Help with text files

[Antoine Monmayrant]

On 11/26/2013 07:13 PM, Eduardo Torrecillas wrote:
> Hello all,
>
> I currently have some text files and I would like to extract 
> information from them using Scilab.
> I have done this before, using mopen and mgetl, for example.
>
> Don't know why, but strangely in this case it is not working. I am 
> using Scilab 5.4.1 on Ubuntu (but Scilab 5.4.0 under Windows produced 
> the same result).
>
> Please check the attached text file.
>
> Simple code such as:
>
> fd=mopen('scilab_example.txt','r')
> phrase=mgetl(fd,1)
>
> Produces:
>
> phrase=ÿp
>
> If i still try to use mgetl, next lines are always returned as empty.
>
> Does anybody have any clue on whats happening?
>
> Best regards,
>
> -- 
> Eduardo Torrecillas
> AER-09
>
>
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> users at lists.scilab.org
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Hi,

Here is what I found:

On my linux box, it seems your file is UTF-16:

$ file scilab_example.txt
scilab_example.txt: Little-endian UTF-16 Unicode text, with CRLF, CR 
line terminators

I cannot read it with mgetl, but I can use mgetstr:

-->fd=mopen('scilab_example.txt','r')
  fd  =

     1.

-->chars=mgetstr(50)
  chars  =

  ??                          6 0 A     4 8 8 F / 1

-->chars=mgetstr(50)
  chars  =

  9 - 1 9 - 2 1   4 8 8 * / 1 9 - 1 9 - 2 1     4 8

-->chars=mgetstr(50)
  chars  =

  8 * / 1 9 - 1 9 - 2 1     4 8 8 * / 1 9 - 1 9 - 2


As you can see, it looks like a problem of encoding (the  ?? or the ÿp 
are usually showing up when encoding is wrong).
You can solve it that way:

$ iconv -f UTF-16 -t LATIN1 scilab_example.txt > latin1.txt

than in Scilab:

-->fd=mopen('latin1.txt','r')
  fd  =

     1.

-->phrase=mgetl(fd,1)
  phrase  =

               60A  488F/19-19-21 488*/19-19-21  488*/19-19-21 
488*/19-19-21

Hope it helps



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