Yes, it works also for me, but as I explained above, it does not work when
the file is mounted on
a shared disk from virtual box Linux and the shared disk is mounted by Linux
as NTFS.
It works only if the file is local to the Linux machine or not mounted as
shared using NTFS.
But it is not a big deal. Will only use a local Linux file.
--Nasser
On Saturday, January 27, 2018 at 8:46:47 AM UTC-6, Raymond Rogers wrote:
>
> Works here:
> Release 16.04.3 LTS (Xenial Xerus) 64-bit
> AMD A4-3400 APU with Radeon(tm) HD Graphics × 2
> compile.log has 'sbcl'
> --
> Remember the file doesn't actually write until you close/flush it or fill
> the internal buffer.
> Ray
>
> FriCAS Computer Algebra System
> Version: FriCAS 1.3.2
> Timestamp: Tue Apr 25 16:33:05 EDT 2017
>
> -----------------------------------------------------------------------------
> Issue )copyright to view copyright notices.
> Issue )summary for a summary of useful system commands.
> Issue )quit to leave FriCAS and return to shell.
>
> -----------------------------------------------------------------------------
>
>
> (1) -> q : String := quote()$CHAR
>
> (1) """
> Type:
> String
> (2) -> f1: TextFile := open("./tmp/foo.txt", "output")
>
> (2) "./tmp/foo.txt"
> Type:
> TextFile
> (3) -> write!(f1,q);write!(f1,"--Test--");write!(f1,q);
>
> Type:
> String
> (4) -> close! f1
>
> (4) "./tmp/foo.txt"
> Type:
> TextFile
> (5) -> )quit
>
>
> rrogers@Mate-desk:~$ less tmp/foo.txt
> "--Test--"
> tmp/foo.txt (END)
>
> -----------------------------------------------------------------
>
>
> On 01/27/2018 05:45 AM, Prof. Dr. Johannes Grabmeier FW wrote:
>
> no ideas,
> I have 1.3.1. on a MacBook
>
> Am 27.01.18 um 11:40 schrieb 'Nasser M. Abbasi' via FriCAS - computer
> algebra system:
>
>
>
> On Saturday, January 27, 2018 at 4:13:23 AM UTC-6, jg wrote:
>>
>> e.g.
>>
>> q : String := quote()$CHAR
>>
>> write!(f2, q)
>>
>>
>>
>>
> Thanks. But it is not working for me. I get error
>
> q : String := quote()$CHAR
> f1: TextFile := open("/media/data/tmp/foo.txt", "output")
> write!(f1,q)
>
> >> System error:
>
> UNIX error 71 (EPROTO): Protocol error
>
> I am using
>
> >fricas
> viewman not present, disabling graphics
> /bin/sh: 1: exec:
> /home/me/data/fricas/fricas-1.3.2/target/x86_64-linux-gnu/bin/hypertex: not
> found
> Checking for foreign routines
> AXIOM="/home/me/data/fricas/fricas-1.3.2/target/x86_64-linux-gnu"
>
> spad-lib="/home/me/data/fricas/fricas-1.3.2/target/x86_64-linux-gnu/lib/libspad.so"
> foreign routines found
> openServer result 0
> FriCAS Computer Algebra System
> Version: FriCAS 1.3.2
> Timestamp: Mon Jan 22 22:59:20 CST 2018
>
>
> Linux mint.
>
>
>
>> Am 27.01.18 um 10:51 schrieb 'Nasser M. Abbasi' via FriCAS - computer
>> algebra system:
>>
>> How does one write a single " to a text file in Fricas?
>>
>> I need to write a string to a text file, but also keep the " " around the
>> string and
>> not have those removed when the string is written. This is because later
>> when
>> I read the file using another program, I need to have those "" there so I
>> can
>> read it as string.
>>
>> Here is an example
>>
>> -------------------------
>> f2: TextFile := open("/tmp/foo.txt", "output")
>> ii:=integrate(1/(a^2+b^2*x^2), x)
>> -------------------------
>>
>> Now I want to write variable ii to the file as string. We see it is
>> string when
>> doing this
>>
>> unparse(ii::InputForm)
>> (45) "atan((b*x)/a)/(a*b)"
>> Type:
>> String
>>
>> So I did this
>>
>> ----------------------
>> (46) -> writeLine!(f2, unparse(ii::InputForm) )
>> close!(f2)
>> ----------------------
>>
>> But when I look at the file, the string quotes that show up on the screen
>> " "
>> are missing at the start and at the end in the file
>>
>> atan((b*x)/a)/(a*b)
>>
>> So the way I do this in Maple for example, is to add explicit " at end and
>> at start. But I do not know how to tell fricas to write a single ". I do
>> not
>> know how to escape the "
>>
>> I tried
>>
>> writeLine!(f2, concat("\"", unparse(ii::InputForm), "\"") )
>>
>> And tried
>>
>> write!(f2, "\"")
>> write!(f2, unparse(ii::InputForm))
>> write!(f2, "\"")
>> writeLine!(f2)
>>
>> But the problem is, I do not know how to write a single " to the file.
>>
>> Thanks
>> --Nasser
>>
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "FriCAS - computer algebra system" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to [email protected].
>> To post to this group, send email to [email protected].
>> Visit this group at https://groups.google.com/group/fricas-devel.
>> For more options, visit https://groups.google.com/d/optout.
>>
>>
>> --
>> Mit freundlichen Grüßen
>>
>> Johannes Grabmeier
>>
>> Fraktionsvorsitzender
>> FREIE WÄHLER, Stadtrat Deggendorf
>>
>> Prof. Dr. Johannes Grabmeier
>> Köckstraße 1, D-94469 Deggendorf
>> Tel. +49-(0)-991-2979584, Tel. +49-(0)-151-681-70756
>> Fax: +49-(0)-322-241-92688
>>
>> --
> You received this message because you are subscribed to the Google Groups
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> To unsubscribe from this group and stop receiving emails from it, send an
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> For more options, visit https://groups.google.com/d/optout.
>
>
> --
> Mit freundlichen Grüßen
>
> Johannes Grabmeier
>
> Fraktionsvorsitzender
> FREIE WÄHLER, Stadtrat Deggendorf
>
> Prof. Dr. Johannes Grabmeier
> Köckstraße 1, D-94469 Deggendorf
> Tel. +49-(0)-991-2979584, Tel. +49-(0)-151-681-70756
> Fax: +49-(0)-322-241-92688
>
> --
> You received this message because you are subscribed to the Google Groups
> "FriCAS - computer algebra system" group.
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> email to [email protected] <javascript:>.
> To post to this group, send email to [email protected]
> <javascript:>.
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> For more options, visit https://groups.google.com/d/optout.
>
>
>
--
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