TeX, LaTeX and Friends

7:21 AM

The TikZ manual is very well documented; a (simple) example is given for each fart.

But as far as the whole pgfkeys story is concerned, the manual is limited to a few general remarks.

Isn't there a clever tutorial for pgfkeys?

cis

7:59 AM

0

Q: pgfkeys: Different output depending on a keyword

I need an output like \cmd[map] ---> "S1 S2 S3" (output) \cmd or \cmd[map=false] ---> "S0" (output) I looked here and here. How can I get a command with pgfkey for that? \documentclass[a4paper]{article} \usepackage{tikz} \pgfkeys{/tikz/.cd, /map/.is family, /map/.cd, %<-added /.cd ...

Rmano

8:56 AM

@cis I answered, but you can also look at tex.stackexchange.com/a/114017/38080

egreg

9:06 AM

@DavidCarlisle The .aux file is read in at begin document, when the idx files have already been opened.

@DavidCarlisle Well, one might also delay the opening…

cis

Mmhh, yes, thanks irst.

I have two problems here: https://tex.stackexchange.com/a/114017/38080

- \cmd[map] alone seems not to work.

- But fundamentally I wonder why this seems not to be possible with "plain pgfkeys syntax"

Because: It is clear that this is an abstract, simplified MWE from me. I don't just want to write "S1 S2 S3". I can hardly list the 17 lines that are hidden behind "S2" in the "MWE".
That I basically need numerous other keys - that means: If this is only possible in such a complicated way, I cannot use it.

Ulrike Fischer

@egreg can't you call makeindex after the last shipout?

cis

MY LINK WAS FALSE, I MEANT: https://tex.stackexchange.com/questions/552126/pgfkeys-different-output-depending-on-a-keyword/552128?noredirect=1#comment1394200_552128

!!!!!!

@Rmano

I meant your answer @Rmano

I know your link, but can't adjust it. @Rmano

Rmano

@cis ok, in a meeting now. If you want to use a pure map, you don't use the is choice... will try to help something later

cis

@Rmano Ok, thx.

David Carlisle

9:27 AM

@egreg yes realised that later, should be able to do something though (or at least mention it in the doc:-) But as Ulrike says maybe the hook work will give you a safe really after last page is shipped out hook to do something

cis

@DavidCarlisle Who is the most daring pgkfkeyer here?

Rmano

@cis I made another try at it.

Ulrike Fischer

9:47 AM

we passed the 200.000 ...

cis

9:59 AM

Yes, maybe I can adjust that.

I really need to use the usual Tikz syntax \cmd [map]
or \cmd[] = \cmd[map = false]
(in contrast to your \ cmd [map] or \cmd[no map])

Comparable to "\node [draw = none] {aaa};"
(here 'false' instead of 'none')

I am still amazed at why this doesn't seem to be trivial with "pgfkeys alone".

( tex.stackexchange.com/questions/552126/… )

Rmano

@cis My problem is that I am not understanding what exactly you need. It's surely doable. Can you try to outline your spec exactly?

cis

10:15 AM

It was probably incomprehensible. I need:

`\cmd` --> "S0" (output)

`\cmd[]` --> "S0" (output)

`\cmd[map]` ----> "S1 S2 S3" (output)

`\cmd[map=true]` ----> "S1 S2 S3" (output)

`\cmd[map=false]` ----> "S0" (output)

Rmano

@cis Ok, so I think I got it in the last modification. I do not claim it is the simpler way to do it, but it works.

cis

10:38 AM

Ahaaaa, ok ok. Looks very good. I'm just wondering why the pgfkey can't do it alone.

But I think I can continue to work like this.

The global setting is a good idea.

We'll probably name that later

\quaktutorset{map = true, ....}

call.

Rmano

@cis I don't understand what "do it alone" means here. Basically, pgfkeys are a super-duper way of doing \def\this@key{A} or \def\this@key{B}. You set parameters and then you use those parameters in your code. Your example of draw is similar --- it manages things and finally sets \pgfpathcolor{} or something like this...

cis

@Rmano I mean the part with

    \ifdomap
        S1 S2 S3
    \else
        S0
    \fi

I had assumed that pgfkey commands are possible here, e.g.

xyz/.code = {S1 S2 S3}

or something like that.

Rmano

@cis It's probably possible, but... why? You can define a code with an argument that do the choice, and then use the .code key, but at the end would be a complex way to do the same...

cis

10:54 AM

Yes that's right. I just thought it could be expensive if you have several bools, of which "map" is one.

Such if-then-else nestings could be complex.
Well, I'll see how far I can get.

Rmano

@cis if-the-else is complex, yes, but only if you need to do it at low level (as in circuitikz, that should be format-agnostic). In LaTeX you can use the ifthen or xifthen package and this is much easier.

cis

Ok, (x)ifthen could be useful here.

But there I read somewhere that the use of pgfkey makes the use of (x)ifthen unnecessary. Hence my skepticism.

Ulrike Fischer

11:18 AM

@Rmano I wouldn't use ifthen or xifthen in key code, it is not expandable and slow.