On Mon, May 06, 2024 at 05:22:06PM +0200, Grégory Vanuxem wrote:
> Hello,
>
> I am struggling with OutputForm and frankly I do not want to be angry
> today. Maybe you have used it, even not a lot? My question is very
> simple, how do I prevent OutputForm processing, or how to bypass
> interpreter rules, just in case the interpreter has its own rules
> also, from memory I think it has some "knowledge" about OutputForm.
>
> That's simple, my output string is already formatted and I just want
> to let FriCAS display it. Of course there is line length but I do not
> understand very well what happens. Below is the output from PRINC
> (without double quotes, essentially) and after from FriCAS. Why is
> the second row cut???
>
> (1) -> b:=map(i+->urand01()$JFLOAT, identity(4)$JMATRIX(JFLOAT))
>
> 4×4 Matrix{BigFloat}:
> 0.165528 0.830355 0.630221 0.0903032
> 0.615811 0.532272 0.765433 0.0450628
> 0.439631 0.582113 0.309186 0.178607
> 0.974177 0.350188 0.319465 0.981603
>
> (1)
> 4×4 Matrix{BigFloat}:
> 0.165528 0.830355 0.630221 0.0903032
> 0.615811 0.
> 532272 0.765433 0.0450628
> 0.439631 0.582113 0.309186 0.178607
> 0.974177
> 0.350188 0.319465 0.981603
>
>
> The code:
>
> if pprint then
> --newLine()$DisplayPackage
> ret : String := jl_string_eval_show(getind(m))$Lisp
> ret := concat(" ", ret)
> PRINC(ret)$Lisp
> TERPRI()$Lisp
> newLine()$DisplayPackage
> TERPRI()$Lisp
> ret pretend OutputForm
> --concat("\n", ret) pretend OF
> --PRINT(ret)$Lisp
What do you pass to PRINC? Normal FriCAS way to print a literal
string is to use 'message', like:
(13) -> message(" 0.165528 0.830355 0.630221 0.0903032")$OutputForm
(13) 0.165528 0.830355 0.630221 0.0903032
Type: OutputForm
As you can see with correct literal string you get the expected output.
--
Waldek Hebisch
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