append string to float when format out

[Jinsong Zhao]

Hi there,

I am trying to output a large number of float numeric to a text file for
used by another program. It use D0 to indicate the type of double float.
I try it using format in Lisp. However, I have encountered some problem.
I prepared a mini example to demo what's the problem.

I have a list, for example:

'(1.2 1.555 1.3 22.12)

I hope to output it as:

1.200D0 1.555D0 1.300D0 22.120D0

The part of float is 8,4F, and then "D0" is append to the float. Is it
can be done using format? I know there is E directive, but it's not what
I want.

Now, what I have done is to output using 10,6F, and then substitute the
last 00 to D0 using a editor. It will be wonderful to do it by Lisp alone.

Thanks in advance.

Best regards,
Jinsong

[Kaz Kylheku]

On 2014-04-18, Jinsong Zhao <jsz...@yeah.net> wrote:
> Hi there,
>
> I am trying to output a large number of float numeric to a text file for
> used by another program. It use D0 to indicate the type of double float.
> I try it using format in Lisp. However, I have encountered some problem.
> I prepared a mini example to demo what's the problem.
>
> I have a list, for example:
>
> '(1.2 1.555 1.3 22.12)
>
> I hope to output it as:
>
> 1.200D0 1.555D0 1.300D0 22.120D0
>
> The part of float is 8,4F, and then "D0" is append to the float. Is it
> can be done using format? I know there is E directive, but it's not what
> I want.

Am I missing something, as to why it can't just be this:

(format t "~,3fD0~%" 1.2)

?

[Barry Margolin]

In article <lirsvl$f23$1...@dont-email.me>, Jinsong Zhao <jsz...@yeah.net>
wrote:

Am I missing something? Why can't you just put the D0 literally in the
format string?

(format "%8,4FD0" num)

--
Barry Margolin, bar...@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***

[Pascal J. Bourguignon]

Jinsong Zhao <jsz...@yeah.net> writes:

> Hi there,
>
> I am trying to output a large number of float numeric to a text file
> for used by another program. It use D0 to indicate the type of double
> float. I try it using format in Lisp. However, I have encountered some
> problem. I prepared a mini example to demo what's the problem.
>
> I have a list, for example:
>
> '(1.2 1.555 1.3 22.12)
>
> I hope to output it as:
>
> 1.200D0 1.555D0 1.300D0 22.120D0
>
> The part of float is 8,4F, and then "D0" is append to the float. Is it
> can be done using format? I know there is E directive, but it's not
> what I want.

(format t "~{ ~8,4FDO~}~%" '(1.2 1.555 1.3 22.12))
prints:

1.2000DO 1.5550DO 1.3000DO 22.1200DO



--
__Pascal Bourguignon__
http://www.informatimago.com/
"Le mercure monte ? C'est le moment d'acheter !"

[Jinsong Zhao]

Thanks a lot to all replies. I am so stupid not to try something like
it. It looks very simple.

Thanks again.

Best,
Jinsong

[Kaz Kylheku]

On 2014-04-18, Jinsong Zhao <jsz...@yeah.net> wrote:

> Thanks a lot to all replies. I am so stupid not to try something like
> it. It looks very simple.

It also works with iteration over lists:

"~{~8,3fD0~}" (list 1.1 2.2 3.3)

everything between the ~{ and ~} is repeated, formating directives
as well as verbatim characters.