Prevent multi-line reformatting of embedded calc results

Prevent multi-line reformatting of embedded calc results

[Eric S Fraga]

Hello all,

TL;DR: how do I control (or prevent) the formatting of the evaluated
embedded Calc lines?

I use embedded Calc quite a bit.  In one of my use cases, I have a
specific format expected for the lines as the resulting document is
post-processed.  In this case, I want all individual Calc expressions,
including with the => results, to be constrained to a single line each.

If the overall line ends up longer than the window is wide, Calc
reformats to use multiple lines, breaking at obvious points.  Normally,
this would be quite desirable but, in my use case, it breaks the
post-processing.

I can make the window wider (I do have a very wide screen) but this is
fragile as equations & results get updated automatically and I may not
notice.

Thank you,
eric

-- 
Eric S Fraga via Emacs 28.0.50 & org 9.4 on Debian bullseye/sid

Re: Prevent multi-line reformatting of embedded calc results

[Robert Pluim]

Eric S Fraga <e.fraga@ucl.ac.uk> writes:

> Hello all,
>
> TL;DR: how do I control (or prevent) the formatting of the evaluated
> embedded Calc lines?
>
> I use embedded Calc quite a bit.  In one of my use cases, I have a
> specific format expected for the lines as the resulting document is
> post-processed.  In this case, I want all individual Calc expressions,
> including with the => results, to be constrained to a single line each.
>
> If the overall line ends up longer than the window is wide, Calc
> reformats to use multiple lines, breaking at obvious points.  Normally,
> this would be quite desirable but, in my use case, it breaks the
> post-processing.
>
> I can make the window wider (I do have a very wide screen) but this is
> fragile as equations & results get updated automatically and I may not
> notice.

You could override 'math-format-nice-expr' to not do that.

Robert

Re: Prevent multi-line reformatting of embedded calc results

[Eric S Fraga]

On Thursday,  5 Nov 2020 at 11:43, Robert Pluim wrote:
> You could override 'math-format-nice-expr' to not do that.

Hi Robert,

Thank you for this suggestion.  It did not work but it did send me down
a very interesting rabbit hole. :-) Calc code is, shall we say, somewhat
terse at times.

I eventually got out of the rabbit hole and did so with a very simple
solution:

% [calc-mode: break: nil]

I should have known that Calc would have what I want; it's just that
there's so much that it's difficult to find what you need at times.  The
key, for embedded mode, is the variable calc-embedded-mode-vars which
tells you what mode settings are possible/understood.

Thanks again,
eric

-- 
Eric S Fraga via Emacs 28.0.50 & org 9.4 on Debian bullseye/sid

Re: Prevent multi-line reformatting of embedded calc results

[Robert Pluim]

Eric S Fraga <e.fraga@ucl.ac.uk> writes:

> On Thursday,  5 Nov 2020 at 11:43, Robert Pluim wrote:
>> You could override 'math-format-nice-expr' to not do that.
>
> Hi Robert,
>
> Thank you for this suggestion.  It did not work but it did send me down
> a very interesting rabbit hole. :-) Calc code is, shall we say, somewhat
> terse at times.
>

Thatʼs one way to put it :-)

> I eventually got out of the rabbit hole and did so with a very simple
> solution:
>
> % [calc-mode: break: nil]
>
> I should have known that Calc would have what I want; it's just that
> there's so much that it's difficult to find what you need at times.  The
> key, for embedded mode, is the variable calc-embedded-mode-vars which
> tells you what mode settings are possible/understood.

That tells me I looked at completely the wrong part of the code :-)

(hey, itʼs even documented, kind of)

Robert