How to properly smuggle (with or even without TikZ)?

23

I am seeking to find something that allows me to "broadcast" macros outside a group. Concrete examples include paths and scopes in tizpictures. Here is an M(N)WE.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}

makeatletter

letsmuggleoutonepgfmath@smuggleone

makeatother

begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

%smuggleoutone#1

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

The two options on the left do partly what I am seeking to do, namely broadcast the macro myangle outside the path. However, they do it at the expense of making myangle global. TikZ has some internal commands that may allow one to avoid this, and to just smuggle the macro outside the path. Specifically, @DavidCarlisle suggested in the chat to use pgfmath@smuggleone. However, my above attempts failed, i.e. if I uncomment

%smuggleoutone#1

the code produces errors.

QUESTION: Can one smuggle the macro outside the group without making it global?

"BONUS": Of course it would be great if there was an explanation what all the smuggle commands do.

"BONUUUUS": Conceivably these methods may be useful independently of TikZ, so if there is a way not to make them depend on TikZ being loaded, this would be great, but is certainly not a requirement.

tikz-pgf tex-core

share|improve this question

edited Jan 20 at 1:35

marmot

asked Jan 20 at 0:16

marmotmarmot

105k4126241

add a comment | 

23

I am seeking to find something that allows me to "broadcast" macros outside a group. Concrete examples include paths and scopes in tizpictures. Here is an M(N)WE.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}

makeatletter

letsmuggleoutonepgfmath@smuggleone

makeatother

begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

%smuggleoutone#1

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

The two options on the left do partly what I am seeking to do, namely broadcast the macro myangle outside the path. However, they do it at the expense of making myangle global. TikZ has some internal commands that may allow one to avoid this, and to just smuggle the macro outside the path. Specifically, @DavidCarlisle suggested in the chat to use pgfmath@smuggleone. However, my above attempts failed, i.e. if I uncomment

%smuggleoutone#1

the code produces errors.

QUESTION: Can one smuggle the macro outside the group without making it global?

"BONUS": Of course it would be great if there was an explanation what all the smuggle commands do.

"BONUUUUS": Conceivably these methods may be useful independently of TikZ, so if there is a way not to make them depend on TikZ being loaded, this would be great, but is certainly not a requirement.

tikz-pgf tex-core

share|improve this question

edited Jan 20 at 1:35

marmot

asked Jan 20 at 0:16

marmotmarmot

105k4126241

add a comment | 

23

23

23

3

I am seeking to find something that allows me to "broadcast" macros outside a group. Concrete examples include paths and scopes in tizpictures. Here is an M(N)WE.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}

makeatletter

letsmuggleoutonepgfmath@smuggleone

makeatother

begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

%smuggleoutone#1

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

The two options on the left do partly what I am seeking to do, namely broadcast the macro myangle outside the path. However, they do it at the expense of making myangle global. TikZ has some internal commands that may allow one to avoid this, and to just smuggle the macro outside the path. Specifically, @DavidCarlisle suggested in the chat to use pgfmath@smuggleone. However, my above attempts failed, i.e. if I uncomment

%smuggleoutone#1

the code produces errors.

QUESTION: Can one smuggle the macro outside the group without making it global?

"BONUS": Of course it would be great if there was an explanation what all the smuggle commands do.

"BONUUUUS": Conceivably these methods may be useful independently of TikZ, so if there is a way not to make them depend on TikZ being loaded, this would be great, but is certainly not a requirement.

tikz-pgf tex-core

share|improve this question

edited Jan 20 at 1:35

marmot

asked Jan 20 at 0:16

marmotmarmot

105k4126241

I am seeking to find something that allows me to "broadcast" macros outside a group. Concrete examples include paths and scopes in tizpictures. Here is an M(N)WE.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}

makeatletter

letsmuggleoutonepgfmath@smuggleone

makeatother

begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

%smuggleoutone#1

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

The two options on the left do partly what I am seeking to do, namely broadcast the macro myangle outside the path. However, they do it at the expense of making myangle global. TikZ has some internal commands that may allow one to avoid this, and to just smuggle the macro outside the path. Specifically, @DavidCarlisle suggested in the chat to use pgfmath@smuggleone. However, my above attempts failed, i.e. if I uncomment

%smuggleoutone#1

the code produces errors.

QUESTION: Can one smuggle the macro outside the group without making it global?

"BONUS": Of course it would be great if there was an explanation what all the smuggle commands do.

"BONUUUUS": Conceivably these methods may be useful independently of TikZ, so if there is a way not to make them depend on TikZ being loaded, this would be great, but is certainly not a requirement.

tikz-pgf tex-core

tikz-pgf tex-core

share|improve this question

edited Jan 20 at 1:35

marmot

asked Jan 20 at 0:16

marmotmarmot

105k4126241

share|improve this question

edited Jan 20 at 1:35

marmot

asked Jan 20 at 0:16

marmotmarmot

105k4126241

share|improve this question

share|improve this question

edited Jan 20 at 1:35

marmot

edited Jan 20 at 1:35

marmot

edited Jan 20 at 1:35

marmot

asked Jan 20 at 0:16

marmotmarmot

105k4126241

asked Jan 20 at 0:16

marmotmarmot

105k4126241

asked Jan 20 at 0:16

marmotmarmot

105k4126241

105k4126241

add a comment | 

add a comment | 

3 Answers
3

active

oldest

votes

28

You can "smuggle" definitions out of their group with the TeX primitive aftergroup. I'll first explain what aftergroup does, then give a possible definition of smuggleone using aftergroup and finally apply it to your MWE.

The short answer is that you could define smuggleone (I've removed "out" from the name) as

newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

If you paste in this definition and replace smuggleoutone#1 by smuggleone#2 in your MWE it should work. (Note that you were passing the wrong argument to smuggleoutone, it should have been #2 instead of #1.)

---

About aftergroup:

It is possible to insert a single token right after the end of the current group using aftergroup<token>.
You can only smuggle out one token at a time, so if you want to move out something consisting of multiple tokens (like a definition) you'll need to aftergroup each of these tokens separately. This includes things like braces ({}), so for instance

{aftergroupdefaftergroupabcaftergroup{aftergroup Aaftergroup Baftergroup Caftergroup}}

is equivalent to {}defabc{ABC}.

This is quite a hassle, so the following may be more practical:

{gdefsomethingunique{defabc{ABC}}aftergroupsomethingunique}

This works by globally assigning defabc{ABC} to somethingunique and inserting that after the end of the group.
If ABC is replaced by some macro, say ABC, that is only defined within the current group and that you want to be fully expanded then you'll want to use xdef instead:

{%

  newcommand*ABC{ABC}%

  xdefsomethingunique{defnoexpandabc{ABC}}%

  aftergroupsomethingunique

}

I've inserted noexpand in front of abc because we don't want abc to be expanded.
If you only want ABC to be expanded once you can instead use the slightly more complicated

{

  newcommand*ABC{somethingthatshouldntbeexpanded}%

  xdefsomethingunique{defnoexpandabc{unexpandedexpandafter{ABC}}}%

  aftergroupsomethingunique

}

(The primitives noexpand, unexpanded and expandafter are all explained in this this answer.)

To smuggle the definition of abc out of a group you can do what I just did above with ABC replaced by abc itself.
That way abc will be defined as itself (expanded once) immediately after the end of the group.

There's also AfterGroup from the etextools package.
It acts mostly like aftergroup, but it takes an argument that can consist of any number of tokens.
So, for instance, Aftergroup{defabc{ABC}} inserts defabc{ABC} after the current group without all of the aforementioned hassle.
There's also a starred version, Aftergroup*, that does the same thing but first expands its arguments fully.

Don't use the etextools package though! It is apparently buggy and no longer maintained and it is incompatible with a bunch of other packages. (Thanks to Ulrike Fischer for pointing that out, here are a few examples: 1, 2, 3, 4.)

Even though you shouldn't use the package, AfterGroup itself can be quite useful. It is defined as follows:

makeatletter %% <- make @ usable in command names

newcountettl@fter

newrobustcmdAfterGroup{@ifstar{ettl@AfterGroup@firstofone}{ettl@AfterGroupunexpanded}}

newrobustcmdettl@AfterGroup[2]{%

   csxdef{ettl@fterGroupnumbernumexprtheettl@fter+1}%

      {globalcsundef{ettl@fterGroupnumbernumexprtheettl@fter+1}#1{#2}}%

   globaladvanceettl@fter@ne

   expandafteraftergroupcsname ettl@fterGrouptheettl@fterendcsname}

makeatother  %% <- revert @

---

Defining smuggleone:

To smuggle a macro that was already defined past the end of a group, it may be more effective to use let instead of def.
One advantage is that it will also works for macros with arguments:

{

  newcommand*abc[1]{``#1''}%

  globalletsomethinguniqueabc

  aftergroupletaftergroupabcaftergroupsomethingunique

}

abc{This works!}

This leads us to a possible definition of smuggleone.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}



newcommand*abc[1]{textbf{#1}}%

{%

  {%

    renewcommand*abc[1]{``#1''}%

    smuggleoneabc

    abc{Local definition}

  }par

  abc{Local definition}

}par

abc{Global definition}



end{document}

The reason for the use of a counter here is that if you use somethingunique every time you're smuggling something, it won't really be unique.
Whenever multiple smuggling operations are happening consescutively, because you're using smuggleone multiple times from within the same group or from a group contained in another one where smuggleone is used, this will cause trouble.
The above command therefore creates smuggle@<n> the <n>-th time it is used.

This can be made more efficient (memory-wise) by reusing these command sequences as much as possible, as in jfbu's answer.

---

All of this applied to your MWE:

Here is your MWE with two changes: (1) I've added the definition of smuggleone and (2) I've replaced %smuggleoutone#1 by smuggleone#2.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

smuggleone#2

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

---

---

Addendum

Here's a smuggle macro that works up to depth 10. It doesn't let you smuggle anything across eleven borders because 10 is two tokens (yeah, that's a stupid reason).
I could make it work for any depth, but I like how short the definition currently is and it seems unlikely that any sane person would need this.

The syntax is smuggle[<depth>]{<macro>}, and the default <depth> is 1.
It works by calling smuggleone and then also aftergrouping smuggle[<depth-1>]{<macro>}.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

DeclareRobustCommandsmuggle[2][1]{%

  smuggleone{#2}%

  ifnum#1>1

    aftergroupsmuggleaftergroup[expandafteraftergroupthenumexpr#1-1aftergroup]aftergroup#2%

  fi

}



begin{document}



newcommand*abc[1]{textbf{#1}}

{%

  {%

    {%

      renewcommand*abc[1]{``#1''}%

      smuggle[2]{abc}%

      Definition at depth 3: abc{Local definition}

    }par

    Definition of depth 2: abc{Local definition}

  }par

  Definition of depth 1: abc{Local definition}

}par

Definition at depth 0: abc{Global definition}



end{document}

share|improve this answer

edited Jan 21 at 0:19

answered Jan 20 at 3:54

CircumscribeCircumscribe

7,11121141

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Don't use etextools. Search the site for some of its incompabilies.
  
  – Ulrike Fischer
  Jan 20 at 7:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UlrikeFischer: Oh, that is good to know. Do you have a suggestion about what to use instead? (I'll just copy the definition of Aftergroup for now.)
  
  – Circumscribe
  Jan 20 at 9:35
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  come on, we all need SmuggleOutTo{comma separated list of upper levels}foo, e.g., SmuggleOutTo{+1, +4, +6, +13..infty}Foo will mean let Foo be known 1 level up, 4 levels up, 6 levels up and 13 levels up and all the way to infty, whereas SmuggleOutTo{infty}Foo will smuggle only to top level. What are you waiting for to do the real job ? :)
  
  – user4686
  Jan 20 at 15:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Hah, indeed! :)
  
  – Circumscribe
  Jan 20 at 15:19
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe No worries. It will take a while till I smuggle the information into my brain. ;-)
  
  – marmot
  Jan 20 at 23:53
  

  
  
  
  

add a comment | 

9

The usual approach is to expandafter around the end-of-group

begingroup

  % Various things

  defresult{some-tokens-that-need-to-escape}%

expandafterendgroup

expandafterdefexpandafterresultexpandafter{result}

That can be expressed slightly more concisely if using expl3

group_begin:

  % Stuff to set

  tl_set:Nn l_result_tl { some-tokens-that-need-to-escape }

exp_args:NNNV group_end:

tl_set:Nn l_result_tl l_result_tl

In either case, one could define something like

protecteddefsmuggleone#1#2endgroup{%

  #2%

  expandafterendgroup

  expandafterdefexpandafter#1expandafter{#1}%

}

share|improve this answer

answered Jan 20 at 9:00

Joseph Wright♦Joseph Wright

204k23560889

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I am wondering if you could add an example for how this is to be used in my above MWE?
  
  – marmot
  Jan 20 at 16:02
  

  
  
  
  

add a comment | 

9

This covers various things:

• smuggling a (no-parameter; see bottom of answer for macros with parameters) macro one level up,




• (bizarre, for fun) smuggle it two level up, but it remains undefined one level up,




• (more useful) smuggle one level up the contents of some macro, which is way to execute after group closes arbitrarily many tokens (if they are still defined at that level of course).

There is some subtlety in the way some globally defined auxiliary macros are indexed (their index is never globally increased), but I think it is ok. I hesitated about adding extra code to let them globally undefined once used, but did not do that finally. The same index will be used multiple times, but I think no non-yet needed thing ever gets overwritten. (although I may need to think about it more).

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%





makeatother



begin{document}



tt



begingroup

    typeout{DEPTH 1}%

    deffuzz{FUZZ defined at depth 1 and smuggled}%

    SmuggleMacrofuzz

    begingroup

        typeout{DEPTH 2}%

        defbaz{BAZ defined at depth 2 and smuggled up two}%

        SmuggleMacroUpTwobaz

        begingroup

            typeout{DEPTH 3}%

            DEPTH 3par

            deffoo{FOO defined at depth 3 and smuggled}%

            SmuggleMacrofoo

            defbar{BAR defined at depth 3 and smuggled up two}%

            SmuggleMacroUpTwobar

            END OF FIRST DEPTH 3par

        endgroup

        at depth 2 in-between the two depth 3par

        stringfoospace has meaning meaningfoospace and will be smuggled againpar

        stringbarspace has meaning meaningbarpar

        SmuggleMacrofoo

        begingroup

            DEPTH 3par

            typeout{SECOND TIMES AT DEPTH 3}%

            deffoofoo{FOOFOO defined at (second) depth 3 and smuggled}%

            SmuggleMacrofoofoo

            defTruc{par Hello, I am stringTrucspace 

                      I was defined at depth 3, but got executed

                      at depth 2!par

                      My own meaning is now: meaningTrucpar

                      typeout{DEPTH 2 AFTER 3}}%

            showTruc

            SmuggleValueTruc

            END OF SECOND DEPTH 3par

        endgroup

        BACK TO DEPTH 2 (after executing aftergroup tokens)par

        showTruc

        showfuzz

        showbaz

        showfoo

        showfoofoo

        showbar

    endgroup

    BACK TO DEPTH 1 (after executing aftergroup tokens)par

    stringfoospace has meaning meaningfoopar

    stringbarspace has meaning meaningbarpar

    typeout{DEPTH 1 AFTER 2}%

    showfuzz

    showbaz

    showfoo

    showfoofoo

    showbar

endgroup

BACK TO DEPTH 0 (after executing aftergroup tokens)par

stringfoospace has meaning meaningfoopar

typeout{DEPTH 0 AFTER 1}

showfuzz

showbaz

showfoo

showfoofoo

showbar



end{document}

DEPTH 1

DEPTH 2

DEPTH 3



SECOND TIMES AT DEPTH 3

> Truc=macro:

->par Hello, I am string Truc space I was defined at depth 3, but got executed at depth 2!par My own meaning is now: meaning Truc par typeout {DEPTH 2 AFTER 3}.

l.77             showTruc





DEPTH 2 AFTER 3

> Truc=undefined.

l.82         showTruc



> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.83         showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.84         showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.85         showfoo



> foofoo=macro:

->FOOFOO defined at (second) depth 3 and smuggled.

l.86         showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.87         showbar



DEPTH 1 AFTER 2

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.92     showfuzz



> baz=undefined.

l.93     showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.94     showfoo



> foofoo=undefined.

l.95     showfoofoo



> bar=macro:

->BAR defined at depth 3 and smuggled up two.

l.96     showbar



DEPTH 0 AFTER 1

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.101 showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.102 showbaz



> foo=undefined.

l.103 showfoo



> foofoo=undefined.

l.104 showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.105 showbar

---

---

Addendum

I am adding SmuggleMacroNtimesUp <number>.macro which will let the macro be known <number> levels up (of course, to the extent that its meaning uses tokens known at these levels...). Currently only parameter less macros, because this is how I started this...

Not much tested. In fact only tested on the single example below...

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#3expandafter{#3}}%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

% This one makes **executes the macro**

% at all levels 1, 2, ..., N up.

% Syntax SmuggleValueNtimesUp<number>.macro

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   deffoo{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.foopar}%

15.foopar}%+1

14.foopar}%+2

13.foopar}%+3

12.foopar}%+4

11.foopar}%

10.foopar}%

9.foopar}%

8.foopar}%+8

7.foopar}%

6.foopar}%

5.foopar}%

4.foopar}%+12

3.foopar}%+13

2.foopar}%

1.foopar}%

0.foopar



end{document}

---

---

Final version

Under pressure of @Circumscribe example I have refactored to handle macros with parameters. Not much tested... Added @marmot query about moving meaning to top level (aka bottom level...)

Thus the defined things are

• SmuggleMacro foo : makes foo keep its meaning one level up,




• SmuggleMacroUpTwo foo: makes foo recover its meaning two levels up (but not one level up...)




• SmuggleMacroNtimesUp <number>.foo : makes foo keep its meaning for the <number> less nested levels. Must be used with <number> at least 1.




• SmuggleValueNtimesUp <number>.foo : executes the meaning of foo for the <number> less nested levels, via aftergroup so as soon as a more nested level is left. foo itselfs (if not globally defined) is not smuggled.




• SmuggleMacroToTopfoo : makes foo known at bottom level (sic), but not at any intermediate level (of course while moving from inner to outer, once we reach bottom level, next time we enter a group foo will be known).

(if the code looks crazy, it is also because it tries to define the less auxiliary storage macros, by keeping this idea of never globally stepping the index of these storage things)

documentclass{article}

usepackage{geometry}

newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux#1#2{%

    globallet#1#2%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLet

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLet{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLet@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLet@aux#1#2#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#3%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#3%

}%

%longdef@gobblethree#1#2#3{}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleMacroNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



% SmuggleMacroToTop

defSmuggleMacroToTop{%

    ifnumcurrentgrouplevel=z@

          expandafter@gobble

    else

          expandafterSmuggleMacro@ToTop

    fi

}%

defSmuggleMacro@ToTop{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroToTop@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroToTop@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLetToTop{%

    ifnumcurrentgrouplevel=z@

          expandafterlet

    else

          expandafterSmuggleLet@ToTop

    fi

}%

defSmuggleLet@ToTop{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLetToTop@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLetToTop@aux#1#2#3{%

    globallet#1#3%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   defBAR#1#2#3{Hello, I am BAR}%

   SmuggleMacroBAR

   SmuggleMacroToTopBAR

   defBAZ#1#2#3#4{Hello, I am BAZ}%

   SmuggleMacroUpTwoBAZ

   deffoo#1#2{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.FOO meaningfoopar

16.BAZ meaningBAZpar

16.BAR meaningBARpar

defx{leavevmodellap{aaa }}%

SmuggleValueNtimesUp7.x

medskip}%

15.FOO meaningfoopar

15.BAZ meaningBAZpar

15.BAR meaningBARparmedskip}%

14.FOO meaningfoopar

14.BAZ meaningBAZpar

14.BAR meaningBARparmedskip}%

13.FOO meaningfoopar}%+3

12.FOO meaningfoopar}%+4

11.FOO meaningfoopar}%

10.FOO meaningfoopar}%

9.FOO meaningfoopar

9.BAR meaningBARpar

}%

8.FOO meaningfoopar}%+8

7.FOO meaningfoopar}%

6.FOO meaningfoopar}%

5.FOO meaningfoopar

5.BAR meaningBARpar}%

4.FOO meaningfoopar}%+12

3.FOO meaningfoopar}%+13

2.FOO meaningfoopar}%

1.FOO meaningfoopar}%

0.FOO meaningfoopar

0.BAR meaningBARpar

end{document}

share|improve this answer

edited Jan 20 at 17:54

answered Jan 20 at 11:33

user4686

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  although I may need to think about it more: I think it is fine, although I have not really thought at depth. (ah ah).
  
  – user4686
  Jan 20 at 13:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Trying to mentally parse SmuggleMacroUpTwo makes my head hurt, but it appears to be airtight. You're really minimising the number of different macros that need to be assigned by keeping track of how many smuggling operations are currently ongoing and assigning them appropriate numbers :).
  
  – Circumscribe
  Jan 20 at 14:20
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe yes, after a group closes, new definition of a given index can only happen after or at same time its old meaning is actually needed, and when you open an inner group you can only then define macros with a higher index than what you had stored earlier as to be used after the outer group. Thus, ..., it should be airtight indeed, but indeed a bit head-spinning :)
  
  – user4686
  Jan 20 at 15:04
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Did you read " Of course, infty means that this macro has the value in all LaTeX documents of the world. ;-) " ? ;-)
  
  – marmot
  Jan 20 at 17:56
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @marmot I understood that I would become rich, did I get that right?
  
  – user4686
  Jan 20 at 17:58
  

  
  
  
  

 | 
show 1 more comment

Your Answer

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "85"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});

Thanks for contributing an answer to TeX - LaTeX Stack Exchange!

• Please be sure to answer the question. Provide details and share your research!

But avoid …

• Asking for help, clarification, or responding to other answers.


• Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f470961%2fhow-to-properly-smuggle-with-or-even-without-tikz%23new-answer', 'question_page');
}
);

Post as a guest

Name

Email

Required, but never shown

3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

active

oldest

votes

active

oldest

votes

28

You can "smuggle" definitions out of their group with the TeX primitive aftergroup. I'll first explain what aftergroup does, then give a possible definition of smuggleone using aftergroup and finally apply it to your MWE.

The short answer is that you could define smuggleone (I've removed "out" from the name) as

newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

If you paste in this definition and replace smuggleoutone#1 by smuggleone#2 in your MWE it should work. (Note that you were passing the wrong argument to smuggleoutone, it should have been #2 instead of #1.)

---

About aftergroup:

It is possible to insert a single token right after the end of the current group using aftergroup<token>.
You can only smuggle out one token at a time, so if you want to move out something consisting of multiple tokens (like a definition) you'll need to aftergroup each of these tokens separately. This includes things like braces ({}), so for instance

{aftergroupdefaftergroupabcaftergroup{aftergroup Aaftergroup Baftergroup Caftergroup}}

is equivalent to {}defabc{ABC}.

This is quite a hassle, so the following may be more practical:

{gdefsomethingunique{defabc{ABC}}aftergroupsomethingunique}

This works by globally assigning defabc{ABC} to somethingunique and inserting that after the end of the group.
If ABC is replaced by some macro, say ABC, that is only defined within the current group and that you want to be fully expanded then you'll want to use xdef instead:

{%

  newcommand*ABC{ABC}%

  xdefsomethingunique{defnoexpandabc{ABC}}%

  aftergroupsomethingunique

}

I've inserted noexpand in front of abc because we don't want abc to be expanded.
If you only want ABC to be expanded once you can instead use the slightly more complicated

{

  newcommand*ABC{somethingthatshouldntbeexpanded}%

  xdefsomethingunique{defnoexpandabc{unexpandedexpandafter{ABC}}}%

  aftergroupsomethingunique

}

(The primitives noexpand, unexpanded and expandafter are all explained in this this answer.)

To smuggle the definition of abc out of a group you can do what I just did above with ABC replaced by abc itself.
That way abc will be defined as itself (expanded once) immediately after the end of the group.

There's also AfterGroup from the etextools package.
It acts mostly like aftergroup, but it takes an argument that can consist of any number of tokens.
So, for instance, Aftergroup{defabc{ABC}} inserts defabc{ABC} after the current group without all of the aforementioned hassle.
There's also a starred version, Aftergroup*, that does the same thing but first expands its arguments fully.

Don't use the etextools package though! It is apparently buggy and no longer maintained and it is incompatible with a bunch of other packages. (Thanks to Ulrike Fischer for pointing that out, here are a few examples: 1, 2, 3, 4.)

Even though you shouldn't use the package, AfterGroup itself can be quite useful. It is defined as follows:

makeatletter %% <- make @ usable in command names

newcountettl@fter

newrobustcmdAfterGroup{@ifstar{ettl@AfterGroup@firstofone}{ettl@AfterGroupunexpanded}}

newrobustcmdettl@AfterGroup[2]{%

   csxdef{ettl@fterGroupnumbernumexprtheettl@fter+1}%

      {globalcsundef{ettl@fterGroupnumbernumexprtheettl@fter+1}#1{#2}}%

   globaladvanceettl@fter@ne

   expandafteraftergroupcsname ettl@fterGrouptheettl@fterendcsname}

makeatother  %% <- revert @

---

Defining smuggleone:

To smuggle a macro that was already defined past the end of a group, it may be more effective to use let instead of def.
One advantage is that it will also works for macros with arguments:

{

  newcommand*abc[1]{``#1''}%

  globalletsomethinguniqueabc

  aftergroupletaftergroupabcaftergroupsomethingunique

}

abc{This works!}

This leads us to a possible definition of smuggleone.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}



newcommand*abc[1]{textbf{#1}}%

{%

  {%

    renewcommand*abc[1]{``#1''}%

    smuggleoneabc

    abc{Local definition}

  }par

  abc{Local definition}

}par

abc{Global definition}



end{document}

The reason for the use of a counter here is that if you use somethingunique every time you're smuggling something, it won't really be unique.
Whenever multiple smuggling operations are happening consescutively, because you're using smuggleone multiple times from within the same group or from a group contained in another one where smuggleone is used, this will cause trouble.
The above command therefore creates smuggle@<n> the <n>-th time it is used.

This can be made more efficient (memory-wise) by reusing these command sequences as much as possible, as in jfbu's answer.

---

All of this applied to your MWE:

Here is your MWE with two changes: (1) I've added the definition of smuggleone and (2) I've replaced %smuggleoutone#1 by smuggleone#2.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

smuggleone#2

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

---

---

Addendum

Here's a smuggle macro that works up to depth 10. It doesn't let you smuggle anything across eleven borders because 10 is two tokens (yeah, that's a stupid reason).
I could make it work for any depth, but I like how short the definition currently is and it seems unlikely that any sane person would need this.

The syntax is smuggle[<depth>]{<macro>}, and the default <depth> is 1.
It works by calling smuggleone and then also aftergrouping smuggle[<depth-1>]{<macro>}.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

DeclareRobustCommandsmuggle[2][1]{%

  smuggleone{#2}%

  ifnum#1>1

    aftergroupsmuggleaftergroup[expandafteraftergroupthenumexpr#1-1aftergroup]aftergroup#2%

  fi

}



begin{document}



newcommand*abc[1]{textbf{#1}}

{%

  {%

    {%

      renewcommand*abc[1]{``#1''}%

      smuggle[2]{abc}%

      Definition at depth 3: abc{Local definition}

    }par

    Definition of depth 2: abc{Local definition}

  }par

  Definition of depth 1: abc{Local definition}

}par

Definition at depth 0: abc{Global definition}



end{document}

share|improve this answer

edited Jan 21 at 0:19

answered Jan 20 at 3:54

CircumscribeCircumscribe

7,11121141

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Don't use etextools. Search the site for some of its incompabilies.
  
  – Ulrike Fischer
  Jan 20 at 7:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UlrikeFischer: Oh, that is good to know. Do you have a suggestion about what to use instead? (I'll just copy the definition of Aftergroup for now.)
  
  – Circumscribe
  Jan 20 at 9:35
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  come on, we all need SmuggleOutTo{comma separated list of upper levels}foo, e.g., SmuggleOutTo{+1, +4, +6, +13..infty}Foo will mean let Foo be known 1 level up, 4 levels up, 6 levels up and 13 levels up and all the way to infty, whereas SmuggleOutTo{infty}Foo will smuggle only to top level. What are you waiting for to do the real job ? :)
  
  – user4686
  Jan 20 at 15:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Hah, indeed! :)
  
  – Circumscribe
  Jan 20 at 15:19
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe No worries. It will take a while till I smuggle the information into my brain. ;-)
  
  – marmot
  Jan 20 at 23:53
  

  
  
  
  

add a comment | 

28

You can "smuggle" definitions out of their group with the TeX primitive aftergroup. I'll first explain what aftergroup does, then give a possible definition of smuggleone using aftergroup and finally apply it to your MWE.

The short answer is that you could define smuggleone (I've removed "out" from the name) as

newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

If you paste in this definition and replace smuggleoutone#1 by smuggleone#2 in your MWE it should work. (Note that you were passing the wrong argument to smuggleoutone, it should have been #2 instead of #1.)

---

About aftergroup:

It is possible to insert a single token right after the end of the current group using aftergroup<token>.
You can only smuggle out one token at a time, so if you want to move out something consisting of multiple tokens (like a definition) you'll need to aftergroup each of these tokens separately. This includes things like braces ({}), so for instance

{aftergroupdefaftergroupabcaftergroup{aftergroup Aaftergroup Baftergroup Caftergroup}}

is equivalent to {}defabc{ABC}.

This is quite a hassle, so the following may be more practical:

{gdefsomethingunique{defabc{ABC}}aftergroupsomethingunique}

This works by globally assigning defabc{ABC} to somethingunique and inserting that after the end of the group.
If ABC is replaced by some macro, say ABC, that is only defined within the current group and that you want to be fully expanded then you'll want to use xdef instead:

{%

  newcommand*ABC{ABC}%

  xdefsomethingunique{defnoexpandabc{ABC}}%

  aftergroupsomethingunique

}

I've inserted noexpand in front of abc because we don't want abc to be expanded.
If you only want ABC to be expanded once you can instead use the slightly more complicated

{

  newcommand*ABC{somethingthatshouldntbeexpanded}%

  xdefsomethingunique{defnoexpandabc{unexpandedexpandafter{ABC}}}%

  aftergroupsomethingunique

}

(The primitives noexpand, unexpanded and expandafter are all explained in this this answer.)

To smuggle the definition of abc out of a group you can do what I just did above with ABC replaced by abc itself.
That way abc will be defined as itself (expanded once) immediately after the end of the group.

There's also AfterGroup from the etextools package.
It acts mostly like aftergroup, but it takes an argument that can consist of any number of tokens.
So, for instance, Aftergroup{defabc{ABC}} inserts defabc{ABC} after the current group without all of the aforementioned hassle.
There's also a starred version, Aftergroup*, that does the same thing but first expands its arguments fully.

Don't use the etextools package though! It is apparently buggy and no longer maintained and it is incompatible with a bunch of other packages. (Thanks to Ulrike Fischer for pointing that out, here are a few examples: 1, 2, 3, 4.)

Even though you shouldn't use the package, AfterGroup itself can be quite useful. It is defined as follows:

makeatletter %% <- make @ usable in command names

newcountettl@fter

newrobustcmdAfterGroup{@ifstar{ettl@AfterGroup@firstofone}{ettl@AfterGroupunexpanded}}

newrobustcmdettl@AfterGroup[2]{%

   csxdef{ettl@fterGroupnumbernumexprtheettl@fter+1}%

      {globalcsundef{ettl@fterGroupnumbernumexprtheettl@fter+1}#1{#2}}%

   globaladvanceettl@fter@ne

   expandafteraftergroupcsname ettl@fterGrouptheettl@fterendcsname}

makeatother  %% <- revert @

---

Defining smuggleone:

To smuggle a macro that was already defined past the end of a group, it may be more effective to use let instead of def.
One advantage is that it will also works for macros with arguments:

{

  newcommand*abc[1]{``#1''}%

  globalletsomethinguniqueabc

  aftergroupletaftergroupabcaftergroupsomethingunique

}

abc{This works!}

This leads us to a possible definition of smuggleone.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}



newcommand*abc[1]{textbf{#1}}%

{%

  {%

    renewcommand*abc[1]{``#1''}%

    smuggleoneabc

    abc{Local definition}

  }par

  abc{Local definition}

}par

abc{Global definition}



end{document}

The reason for the use of a counter here is that if you use somethingunique every time you're smuggling something, it won't really be unique.
Whenever multiple smuggling operations are happening consescutively, because you're using smuggleone multiple times from within the same group or from a group contained in another one where smuggleone is used, this will cause trouble.
The above command therefore creates smuggle@<n> the <n>-th time it is used.

This can be made more efficient (memory-wise) by reusing these command sequences as much as possible, as in jfbu's answer.

---

All of this applied to your MWE:

Here is your MWE with two changes: (1) I've added the definition of smuggleone and (2) I've replaced %smuggleoutone#1 by smuggleone#2.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

smuggleone#2

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

---

---

Addendum

Here's a smuggle macro that works up to depth 10. It doesn't let you smuggle anything across eleven borders because 10 is two tokens (yeah, that's a stupid reason).
I could make it work for any depth, but I like how short the definition currently is and it seems unlikely that any sane person would need this.

The syntax is smuggle[<depth>]{<macro>}, and the default <depth> is 1.
It works by calling smuggleone and then also aftergrouping smuggle[<depth-1>]{<macro>}.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

DeclareRobustCommandsmuggle[2][1]{%

  smuggleone{#2}%

  ifnum#1>1

    aftergroupsmuggleaftergroup[expandafteraftergroupthenumexpr#1-1aftergroup]aftergroup#2%

  fi

}



begin{document}



newcommand*abc[1]{textbf{#1}}

{%

  {%

    {%

      renewcommand*abc[1]{``#1''}%

      smuggle[2]{abc}%

      Definition at depth 3: abc{Local definition}

    }par

    Definition of depth 2: abc{Local definition}

  }par

  Definition of depth 1: abc{Local definition}

}par

Definition at depth 0: abc{Global definition}



end{document}

share|improve this answer

edited Jan 21 at 0:19

answered Jan 20 at 3:54

CircumscribeCircumscribe

7,11121141

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Don't use etextools. Search the site for some of its incompabilies.
  
  – Ulrike Fischer
  Jan 20 at 7:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UlrikeFischer: Oh, that is good to know. Do you have a suggestion about what to use instead? (I'll just copy the definition of Aftergroup for now.)
  
  – Circumscribe
  Jan 20 at 9:35
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  come on, we all need SmuggleOutTo{comma separated list of upper levels}foo, e.g., SmuggleOutTo{+1, +4, +6, +13..infty}Foo will mean let Foo be known 1 level up, 4 levels up, 6 levels up and 13 levels up and all the way to infty, whereas SmuggleOutTo{infty}Foo will smuggle only to top level. What are you waiting for to do the real job ? :)
  
  – user4686
  Jan 20 at 15:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Hah, indeed! :)
  
  – Circumscribe
  Jan 20 at 15:19
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe No worries. It will take a while till I smuggle the information into my brain. ;-)
  
  – marmot
  Jan 20 at 23:53
  

  
  
  
  

add a comment | 

28

28

28

You can "smuggle" definitions out of their group with the TeX primitive aftergroup. I'll first explain what aftergroup does, then give a possible definition of smuggleone using aftergroup and finally apply it to your MWE.

The short answer is that you could define smuggleone (I've removed "out" from the name) as

newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

If you paste in this definition and replace smuggleoutone#1 by smuggleone#2 in your MWE it should work. (Note that you were passing the wrong argument to smuggleoutone, it should have been #2 instead of #1.)

---

About aftergroup:

It is possible to insert a single token right after the end of the current group using aftergroup<token>.
You can only smuggle out one token at a time, so if you want to move out something consisting of multiple tokens (like a definition) you'll need to aftergroup each of these tokens separately. This includes things like braces ({}), so for instance

{aftergroupdefaftergroupabcaftergroup{aftergroup Aaftergroup Baftergroup Caftergroup}}

is equivalent to {}defabc{ABC}.

This is quite a hassle, so the following may be more practical:

{gdefsomethingunique{defabc{ABC}}aftergroupsomethingunique}

This works by globally assigning defabc{ABC} to somethingunique and inserting that after the end of the group.
If ABC is replaced by some macro, say ABC, that is only defined within the current group and that you want to be fully expanded then you'll want to use xdef instead:

{%

  newcommand*ABC{ABC}%

  xdefsomethingunique{defnoexpandabc{ABC}}%

  aftergroupsomethingunique

}

I've inserted noexpand in front of abc because we don't want abc to be expanded.
If you only want ABC to be expanded once you can instead use the slightly more complicated

{

  newcommand*ABC{somethingthatshouldntbeexpanded}%

  xdefsomethingunique{defnoexpandabc{unexpandedexpandafter{ABC}}}%

  aftergroupsomethingunique

}

(The primitives noexpand, unexpanded and expandafter are all explained in this this answer.)

To smuggle the definition of abc out of a group you can do what I just did above with ABC replaced by abc itself.
That way abc will be defined as itself (expanded once) immediately after the end of the group.

There's also AfterGroup from the etextools package.
It acts mostly like aftergroup, but it takes an argument that can consist of any number of tokens.
So, for instance, Aftergroup{defabc{ABC}} inserts defabc{ABC} after the current group without all of the aforementioned hassle.
There's also a starred version, Aftergroup*, that does the same thing but first expands its arguments fully.

Don't use the etextools package though! It is apparently buggy and no longer maintained and it is incompatible with a bunch of other packages. (Thanks to Ulrike Fischer for pointing that out, here are a few examples: 1, 2, 3, 4.)

Even though you shouldn't use the package, AfterGroup itself can be quite useful. It is defined as follows:

makeatletter %% <- make @ usable in command names

newcountettl@fter

newrobustcmdAfterGroup{@ifstar{ettl@AfterGroup@firstofone}{ettl@AfterGroupunexpanded}}

newrobustcmdettl@AfterGroup[2]{%

   csxdef{ettl@fterGroupnumbernumexprtheettl@fter+1}%

      {globalcsundef{ettl@fterGroupnumbernumexprtheettl@fter+1}#1{#2}}%

   globaladvanceettl@fter@ne

   expandafteraftergroupcsname ettl@fterGrouptheettl@fterendcsname}

makeatother  %% <- revert @

---

Defining smuggleone:

To smuggle a macro that was already defined past the end of a group, it may be more effective to use let instead of def.
One advantage is that it will also works for macros with arguments:

{

  newcommand*abc[1]{``#1''}%

  globalletsomethinguniqueabc

  aftergroupletaftergroupabcaftergroupsomethingunique

}

abc{This works!}

This leads us to a possible definition of smuggleone.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}



newcommand*abc[1]{textbf{#1}}%

{%

  {%

    renewcommand*abc[1]{``#1''}%

    smuggleoneabc

    abc{Local definition}

  }par

  abc{Local definition}

}par

abc{Global definition}



end{document}

The reason for the use of a counter here is that if you use somethingunique every time you're smuggling something, it won't really be unique.
Whenever multiple smuggling operations are happening consescutively, because you're using smuggleone multiple times from within the same group or from a group contained in another one where smuggleone is used, this will cause trouble.
The above command therefore creates smuggle@<n> the <n>-th time it is used.

This can be made more efficient (memory-wise) by reusing these command sequences as much as possible, as in jfbu's answer.

---

All of this applied to your MWE:

Here is your MWE with two changes: (1) I've added the definition of smuggleone and (2) I've replaced %smuggleoutone#1 by smuggleone#2.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

smuggleone#2

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

---

---

Addendum

Here's a smuggle macro that works up to depth 10. It doesn't let you smuggle anything across eleven borders because 10 is two tokens (yeah, that's a stupid reason).
I could make it work for any depth, but I like how short the definition currently is and it seems unlikely that any sane person would need this.

The syntax is smuggle[<depth>]{<macro>}, and the default <depth> is 1.
It works by calling smuggleone and then also aftergrouping smuggle[<depth-1>]{<macro>}.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

DeclareRobustCommandsmuggle[2][1]{%

  smuggleone{#2}%

  ifnum#1>1

    aftergroupsmuggleaftergroup[expandafteraftergroupthenumexpr#1-1aftergroup]aftergroup#2%

  fi

}



begin{document}



newcommand*abc[1]{textbf{#1}}

{%

  {%

    {%

      renewcommand*abc[1]{``#1''}%

      smuggle[2]{abc}%

      Definition at depth 3: abc{Local definition}

    }par

    Definition of depth 2: abc{Local definition}

  }par

  Definition of depth 1: abc{Local definition}

}par

Definition at depth 0: abc{Global definition}



end{document}

share|improve this answer

edited Jan 21 at 0:19

answered Jan 20 at 3:54

CircumscribeCircumscribe

7,11121141

You can "smuggle" definitions out of their group with the TeX primitive aftergroup. I'll first explain what aftergroup does, then give a possible definition of smuggleone using aftergroup and finally apply it to your MWE.

The short answer is that you could define smuggleone (I've removed "out" from the name) as

newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

If you paste in this definition and replace smuggleoutone#1 by smuggleone#2 in your MWE it should work. (Note that you were passing the wrong argument to smuggleoutone, it should have been #2 instead of #1.)

---

About aftergroup:

It is possible to insert a single token right after the end of the current group using aftergroup<token>.
You can only smuggle out one token at a time, so if you want to move out something consisting of multiple tokens (like a definition) you'll need to aftergroup each of these tokens separately. This includes things like braces ({}), so for instance

{aftergroupdefaftergroupabcaftergroup{aftergroup Aaftergroup Baftergroup Caftergroup}}

is equivalent to {}defabc{ABC}.

This is quite a hassle, so the following may be more practical:

{gdefsomethingunique{defabc{ABC}}aftergroupsomethingunique}

This works by globally assigning defabc{ABC} to somethingunique and inserting that after the end of the group.
If ABC is replaced by some macro, say ABC, that is only defined within the current group and that you want to be fully expanded then you'll want to use xdef instead:

{%

  newcommand*ABC{ABC}%

  xdefsomethingunique{defnoexpandabc{ABC}}%

  aftergroupsomethingunique

}

I've inserted noexpand in front of abc because we don't want abc to be expanded.
If you only want ABC to be expanded once you can instead use the slightly more complicated

{

  newcommand*ABC{somethingthatshouldntbeexpanded}%

  xdefsomethingunique{defnoexpandabc{unexpandedexpandafter{ABC}}}%

  aftergroupsomethingunique

}

(The primitives noexpand, unexpanded and expandafter are all explained in this this answer.)

To smuggle the definition of abc out of a group you can do what I just did above with ABC replaced by abc itself.
That way abc will be defined as itself (expanded once) immediately after the end of the group.

There's also AfterGroup from the etextools package.
It acts mostly like aftergroup, but it takes an argument that can consist of any number of tokens.
So, for instance, Aftergroup{defabc{ABC}} inserts defabc{ABC} after the current group without all of the aforementioned hassle.
There's also a starred version, Aftergroup*, that does the same thing but first expands its arguments fully.

Don't use the etextools package though! It is apparently buggy and no longer maintained and it is incompatible with a bunch of other packages. (Thanks to Ulrike Fischer for pointing that out, here are a few examples: 1, 2, 3, 4.)

Even though you shouldn't use the package, AfterGroup itself can be quite useful. It is defined as follows:

makeatletter %% <- make @ usable in command names

newcountettl@fter

newrobustcmdAfterGroup{@ifstar{ettl@AfterGroup@firstofone}{ettl@AfterGroupunexpanded}}

newrobustcmdettl@AfterGroup[2]{%

   csxdef{ettl@fterGroupnumbernumexprtheettl@fter+1}%

      {globalcsundef{ettl@fterGroupnumbernumexprtheettl@fter+1}#1{#2}}%

   globaladvanceettl@fter@ne

   expandafteraftergroupcsname ettl@fterGrouptheettl@fterendcsname}

makeatother  %% <- revert @

---

Defining smuggleone:

To smuggle a macro that was already defined past the end of a group, it may be more effective to use let instead of def.
One advantage is that it will also works for macros with arguments:

{

  newcommand*abc[1]{``#1''}%

  globalletsomethinguniqueabc

  aftergroupletaftergroupabcaftergroupsomethingunique

}

abc{This works!}

This leads us to a possible definition of smuggleone.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}



newcommand*abc[1]{textbf{#1}}%

{%

  {%

    renewcommand*abc[1]{``#1''}%

    smuggleoneabc

    abc{Local definition}

  }par

  abc{Local definition}

}par

abc{Global definition}



end{document}

The reason for the use of a counter here is that if you use somethingunique every time you're smuggling something, it won't really be unique.
Whenever multiple smuggling operations are happening consescutively, because you're using smuggleone multiple times from within the same group or from a group contained in another one where smuggleone is used, this will cause trouble.
The above command therefore creates smuggle@<n> the <n>-th time it is used.

This can be made more efficient (memory-wise) by reusing these command sequences as much as possible, as in jfbu's answer.

---

All of this applied to your MWE:

Here is your MWE with two changes: (1) I've added the definition of smuggleone and (2) I've replaced %smuggleoutone#1 by smuggleone#2.

documentclass[tikz,border=3.14mm]{standalone}

usetikzlibrary{calc}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}



begin{document}

begin{tikzpicture}[globalize/.code n args={2}{xdef#2{#1}},

localize/.code n args={2}{pgfmathsetmacro{#2}{#1}typeout{#2}

smuggleone#2

}]

begin{scope}[local bounding box=extra]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

pgfextra{xdefmyangle{n1}};

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (extra.north) {using verb|pgfextra|};

%

begin{scope}[local bounding box=globalize,xshift=3cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[globalize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

node[anchor=south] at (globalize.north) {using texttt{globalize}};

%

xdefmyangle{7}

begin{scope}[local bounding box=localize,xshift=6cm]

path let p1=($(2,1)-(0,0)$),n1={atan2(y1,x1)} in 

[localize={n1}{myangle}];

node at (1,0) {myangle};

end{scope}

node[anchor=south] at (localize.north) {attempt to smuggle};

%

end{tikzpicture}

end{document}

---

---

Addendum

Here's a smuggle macro that works up to depth 10. It doesn't let you smuggle anything across eleven borders because 10 is two tokens (yeah, that's a stupid reason).
I could make it work for any depth, but I like how short the definition currently is and it seems unlikely that any sane person would need this.

The syntax is smuggle[<depth>]{<macro>}, and the default <depth> is 1.
It works by calling smuggleone and then also aftergrouping smuggle[<depth-1>]{<macro>}.

documentclass{article}



newcounter{smuggle}

DeclareRobustCommandsmuggleone[1]{%

  stepcounter{smuggle}%

  expandafterglobalexpandafterletcsname smuggle@arabic{smuggle}endcsname#1%

  aftergroupletaftergroup#1expandafteraftergroupcsname smuggle@arabic{smuggle}endcsname

}

DeclareRobustCommandsmuggle[2][1]{%

  smuggleone{#2}%

  ifnum#1>1

    aftergroupsmuggleaftergroup[expandafteraftergroupthenumexpr#1-1aftergroup]aftergroup#2%

  fi

}



begin{document}



newcommand*abc[1]{textbf{#1}}

{%

  {%

    {%

      renewcommand*abc[1]{``#1''}%

      smuggle[2]{abc}%

      Definition at depth 3: abc{Local definition}

    }par

    Definition of depth 2: abc{Local definition}

  }par

  Definition of depth 1: abc{Local definition}

}par

Definition at depth 0: abc{Global definition}



end{document}

share|improve this answer

edited Jan 21 at 0:19

answered Jan 20 at 3:54

CircumscribeCircumscribe

7,11121141

share|improve this answer

share|improve this answer

edited Jan 21 at 0:19

edited Jan 21 at 0:19

edited Jan 21 at 0:19

answered Jan 20 at 3:54

CircumscribeCircumscribe

7,11121141

answered Jan 20 at 3:54

CircumscribeCircumscribe

7,11121141

answered Jan 20 at 3:54

CircumscribeCircumscribe

7,11121141

7,11121141

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Don't use etextools. Search the site for some of its incompabilies.
  
  – Ulrike Fischer
  Jan 20 at 7:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UlrikeFischer: Oh, that is good to know. Do you have a suggestion about what to use instead? (I'll just copy the definition of Aftergroup for now.)
  
  – Circumscribe
  Jan 20 at 9:35
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  come on, we all need SmuggleOutTo{comma separated list of upper levels}foo, e.g., SmuggleOutTo{+1, +4, +6, +13..infty}Foo will mean let Foo be known 1 level up, 4 levels up, 6 levels up and 13 levels up and all the way to infty, whereas SmuggleOutTo{infty}Foo will smuggle only to top level. What are you waiting for to do the real job ? :)
  
  – user4686
  Jan 20 at 15:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Hah, indeed! :)
  
  – Circumscribe
  Jan 20 at 15:19
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe No worries. It will take a while till I smuggle the information into my brain. ;-)
  
  – marmot
  Jan 20 at 23:53
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  Don't use etextools. Search the site for some of its incompabilies.
  
  – Ulrike Fischer
  Jan 20 at 7:36
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UlrikeFischer: Oh, that is good to know. Do you have a suggestion about what to use instead? (I'll just copy the definition of Aftergroup for now.)
  
  – Circumscribe
  Jan 20 at 9:35
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  come on, we all need SmuggleOutTo{comma separated list of upper levels}foo, e.g., SmuggleOutTo{+1, +4, +6, +13..infty}Foo will mean let Foo be known 1 level up, 4 levels up, 6 levels up and 13 levels up and all the way to infty, whereas SmuggleOutTo{infty}Foo will smuggle only to top level. What are you waiting for to do the real job ? :)
  
  – user4686
  Jan 20 at 15:17
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Hah, indeed! :)
  
  – Circumscribe
  Jan 20 at 15:19
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe No worries. It will take a while till I smuggle the information into my brain. ;-)
  
  – marmot
  Jan 20 at 23:53
  

  
  
  
  

2

2

Don't use etextools. Search the site for some of its incompabilies.

– Ulrike Fischer
Jan 20 at 7:36

Don't use etextools. Search the site for some of its incompabilies.

– Ulrike Fischer
Jan 20 at 7:36

@UlrikeFischer: Oh, that is good to know. Do you have a suggestion about what to use instead? (I'll just copy the definition of Aftergroup for now.)

– Circumscribe
Jan 20 at 9:35

@UlrikeFischer: Oh, that is good to know. Do you have a suggestion about what to use instead? (I'll just copy the definition of Aftergroup for now.)

– Circumscribe
Jan 20 at 9:35

come on, we all need SmuggleOutTo{comma separated list of upper levels}foo, e.g., SmuggleOutTo{+1, +4, +6, +13..infty}Foo will mean let Foo be known 1 level up, 4 levels up, 6 levels up and 13 levels up and all the way to infty, whereas SmuggleOutTo{infty}Foo will smuggle only to top level. What are you waiting for to do the real job ? :)

– user4686
Jan 20 at 15:17

come on, we all need SmuggleOutTo{comma separated list of upper levels}foo, e.g., SmuggleOutTo{+1, +4, +6, +13..infty}Foo will mean let Foo be known 1 level up, 4 levels up, 6 levels up and 13 levels up and all the way to infty, whereas SmuggleOutTo{infty}Foo will smuggle only to top level. What are you waiting for to do the real job ? :)

– user4686
Jan 20 at 15:17

Hah, indeed! :)

– Circumscribe
Jan 20 at 15:19

Hah, indeed! :)

– Circumscribe
Jan 20 at 15:19

@Circumscribe No worries. It will take a while till I smuggle the information into my brain. ;-)

– marmot
Jan 20 at 23:53

@Circumscribe No worries. It will take a while till I smuggle the information into my brain. ;-)

– marmot
Jan 20 at 23:53

add a comment | 

9

The usual approach is to expandafter around the end-of-group

begingroup

  % Various things

  defresult{some-tokens-that-need-to-escape}%

expandafterendgroup

expandafterdefexpandafterresultexpandafter{result}

That can be expressed slightly more concisely if using expl3

group_begin:

  % Stuff to set

  tl_set:Nn l_result_tl { some-tokens-that-need-to-escape }

exp_args:NNNV group_end:

tl_set:Nn l_result_tl l_result_tl

In either case, one could define something like

protecteddefsmuggleone#1#2endgroup{%

  #2%

  expandafterendgroup

  expandafterdefexpandafter#1expandafter{#1}%

}

share|improve this answer

answered Jan 20 at 9:00

Joseph Wright♦Joseph Wright

204k23560889

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I am wondering if you could add an example for how this is to be used in my above MWE?
  
  – marmot
  Jan 20 at 16:02
  

  
  
  
  

add a comment | 

9

The usual approach is to expandafter around the end-of-group

begingroup

  % Various things

  defresult{some-tokens-that-need-to-escape}%

expandafterendgroup

expandafterdefexpandafterresultexpandafter{result}

That can be expressed slightly more concisely if using expl3

group_begin:

  % Stuff to set

  tl_set:Nn l_result_tl { some-tokens-that-need-to-escape }

exp_args:NNNV group_end:

tl_set:Nn l_result_tl l_result_tl

In either case, one could define something like

protecteddefsmuggleone#1#2endgroup{%

  #2%

  expandafterendgroup

  expandafterdefexpandafter#1expandafter{#1}%

}

share|improve this answer

answered Jan 20 at 9:00

Joseph Wright♦Joseph Wright

204k23560889

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I am wondering if you could add an example for how this is to be used in my above MWE?
  
  – marmot
  Jan 20 at 16:02
  

  
  
  
  

add a comment | 

9

9

9

The usual approach is to expandafter around the end-of-group

begingroup

  % Various things

  defresult{some-tokens-that-need-to-escape}%

expandafterendgroup

expandafterdefexpandafterresultexpandafter{result}

That can be expressed slightly more concisely if using expl3

group_begin:

  % Stuff to set

  tl_set:Nn l_result_tl { some-tokens-that-need-to-escape }

exp_args:NNNV group_end:

tl_set:Nn l_result_tl l_result_tl

In either case, one could define something like

protecteddefsmuggleone#1#2endgroup{%

  #2%

  expandafterendgroup

  expandafterdefexpandafter#1expandafter{#1}%

}

share|improve this answer

answered Jan 20 at 9:00

Joseph Wright♦Joseph Wright

204k23560889

The usual approach is to expandafter around the end-of-group

begingroup

  % Various things

  defresult{some-tokens-that-need-to-escape}%

expandafterendgroup

expandafterdefexpandafterresultexpandafter{result}

That can be expressed slightly more concisely if using expl3

group_begin:

  % Stuff to set

  tl_set:Nn l_result_tl { some-tokens-that-need-to-escape }

exp_args:NNNV group_end:

tl_set:Nn l_result_tl l_result_tl

In either case, one could define something like

protecteddefsmuggleone#1#2endgroup{%

  #2%

  expandafterendgroup

  expandafterdefexpandafter#1expandafter{#1}%

}

share|improve this answer

answered Jan 20 at 9:00

Joseph Wright♦Joseph Wright

204k23560889

share|improve this answer

share|improve this answer

answered Jan 20 at 9:00

Joseph Wright♦Joseph Wright

204k23560889

answered Jan 20 at 9:00

Joseph Wright♦Joseph Wright

204k23560889

answered Jan 20 at 9:00

Joseph Wright♦Joseph Wright

204k23560889

204k23560889

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I am wondering if you could add an example for how this is to be used in my above MWE?
  
  – marmot
  Jan 20 at 16:02
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I am wondering if you could add an example for how this is to be used in my above MWE?
  
  – marmot
  Jan 20 at 16:02
  

  
  
  
  

1

1

I am wondering if you could add an example for how this is to be used in my above MWE?

– marmot
Jan 20 at 16:02

I am wondering if you could add an example for how this is to be used in my above MWE?

– marmot
Jan 20 at 16:02

add a comment | 

9

This covers various things:

• smuggling a (no-parameter; see bottom of answer for macros with parameters) macro one level up,




• (bizarre, for fun) smuggle it two level up, but it remains undefined one level up,




• (more useful) smuggle one level up the contents of some macro, which is way to execute after group closes arbitrarily many tokens (if they are still defined at that level of course).

There is some subtlety in the way some globally defined auxiliary macros are indexed (their index is never globally increased), but I think it is ok. I hesitated about adding extra code to let them globally undefined once used, but did not do that finally. The same index will be used multiple times, but I think no non-yet needed thing ever gets overwritten. (although I may need to think about it more).

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%





makeatother



begin{document}



tt



begingroup

    typeout{DEPTH 1}%

    deffuzz{FUZZ defined at depth 1 and smuggled}%

    SmuggleMacrofuzz

    begingroup

        typeout{DEPTH 2}%

        defbaz{BAZ defined at depth 2 and smuggled up two}%

        SmuggleMacroUpTwobaz

        begingroup

            typeout{DEPTH 3}%

            DEPTH 3par

            deffoo{FOO defined at depth 3 and smuggled}%

            SmuggleMacrofoo

            defbar{BAR defined at depth 3 and smuggled up two}%

            SmuggleMacroUpTwobar

            END OF FIRST DEPTH 3par

        endgroup

        at depth 2 in-between the two depth 3par

        stringfoospace has meaning meaningfoospace and will be smuggled againpar

        stringbarspace has meaning meaningbarpar

        SmuggleMacrofoo

        begingroup

            DEPTH 3par

            typeout{SECOND TIMES AT DEPTH 3}%

            deffoofoo{FOOFOO defined at (second) depth 3 and smuggled}%

            SmuggleMacrofoofoo

            defTruc{par Hello, I am stringTrucspace 

                      I was defined at depth 3, but got executed

                      at depth 2!par

                      My own meaning is now: meaningTrucpar

                      typeout{DEPTH 2 AFTER 3}}%

            showTruc

            SmuggleValueTruc

            END OF SECOND DEPTH 3par

        endgroup

        BACK TO DEPTH 2 (after executing aftergroup tokens)par

        showTruc

        showfuzz

        showbaz

        showfoo

        showfoofoo

        showbar

    endgroup

    BACK TO DEPTH 1 (after executing aftergroup tokens)par

    stringfoospace has meaning meaningfoopar

    stringbarspace has meaning meaningbarpar

    typeout{DEPTH 1 AFTER 2}%

    showfuzz

    showbaz

    showfoo

    showfoofoo

    showbar

endgroup

BACK TO DEPTH 0 (after executing aftergroup tokens)par

stringfoospace has meaning meaningfoopar

typeout{DEPTH 0 AFTER 1}

showfuzz

showbaz

showfoo

showfoofoo

showbar



end{document}

DEPTH 1

DEPTH 2

DEPTH 3



SECOND TIMES AT DEPTH 3

> Truc=macro:

->par Hello, I am string Truc space I was defined at depth 3, but got executed at depth 2!par My own meaning is now: meaning Truc par typeout {DEPTH 2 AFTER 3}.

l.77             showTruc





DEPTH 2 AFTER 3

> Truc=undefined.

l.82         showTruc



> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.83         showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.84         showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.85         showfoo



> foofoo=macro:

->FOOFOO defined at (second) depth 3 and smuggled.

l.86         showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.87         showbar



DEPTH 1 AFTER 2

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.92     showfuzz



> baz=undefined.

l.93     showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.94     showfoo



> foofoo=undefined.

l.95     showfoofoo



> bar=macro:

->BAR defined at depth 3 and smuggled up two.

l.96     showbar



DEPTH 0 AFTER 1

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.101 showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.102 showbaz



> foo=undefined.

l.103 showfoo



> foofoo=undefined.

l.104 showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.105 showbar

---

---

Addendum

I am adding SmuggleMacroNtimesUp <number>.macro which will let the macro be known <number> levels up (of course, to the extent that its meaning uses tokens known at these levels...). Currently only parameter less macros, because this is how I started this...

Not much tested. In fact only tested on the single example below...

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#3expandafter{#3}}%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

% This one makes **executes the macro**

% at all levels 1, 2, ..., N up.

% Syntax SmuggleValueNtimesUp<number>.macro

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   deffoo{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.foopar}%

15.foopar}%+1

14.foopar}%+2

13.foopar}%+3

12.foopar}%+4

11.foopar}%

10.foopar}%

9.foopar}%

8.foopar}%+8

7.foopar}%

6.foopar}%

5.foopar}%

4.foopar}%+12

3.foopar}%+13

2.foopar}%

1.foopar}%

0.foopar



end{document}

---

---

Final version

Under pressure of @Circumscribe example I have refactored to handle macros with parameters. Not much tested... Added @marmot query about moving meaning to top level (aka bottom level...)

Thus the defined things are

• SmuggleMacro foo : makes foo keep its meaning one level up,




• SmuggleMacroUpTwo foo: makes foo recover its meaning two levels up (but not one level up...)




• SmuggleMacroNtimesUp <number>.foo : makes foo keep its meaning for the <number> less nested levels. Must be used with <number> at least 1.




• SmuggleValueNtimesUp <number>.foo : executes the meaning of foo for the <number> less nested levels, via aftergroup so as soon as a more nested level is left. foo itselfs (if not globally defined) is not smuggled.




• SmuggleMacroToTopfoo : makes foo known at bottom level (sic), but not at any intermediate level (of course while moving from inner to outer, once we reach bottom level, next time we enter a group foo will be known).

(if the code looks crazy, it is also because it tries to define the less auxiliary storage macros, by keeping this idea of never globally stepping the index of these storage things)

documentclass{article}

usepackage{geometry}

newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux#1#2{%

    globallet#1#2%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLet

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLet{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLet@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLet@aux#1#2#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#3%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#3%

}%

%longdef@gobblethree#1#2#3{}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleMacroNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



% SmuggleMacroToTop

defSmuggleMacroToTop{%

    ifnumcurrentgrouplevel=z@

          expandafter@gobble

    else

          expandafterSmuggleMacro@ToTop

    fi

}%

defSmuggleMacro@ToTop{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroToTop@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroToTop@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLetToTop{%

    ifnumcurrentgrouplevel=z@

          expandafterlet

    else

          expandafterSmuggleLet@ToTop

    fi

}%

defSmuggleLet@ToTop{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLetToTop@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLetToTop@aux#1#2#3{%

    globallet#1#3%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   defBAR#1#2#3{Hello, I am BAR}%

   SmuggleMacroBAR

   SmuggleMacroToTopBAR

   defBAZ#1#2#3#4{Hello, I am BAZ}%

   SmuggleMacroUpTwoBAZ

   deffoo#1#2{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.FOO meaningfoopar

16.BAZ meaningBAZpar

16.BAR meaningBARpar

defx{leavevmodellap{aaa }}%

SmuggleValueNtimesUp7.x

medskip}%

15.FOO meaningfoopar

15.BAZ meaningBAZpar

15.BAR meaningBARparmedskip}%

14.FOO meaningfoopar

14.BAZ meaningBAZpar

14.BAR meaningBARparmedskip}%

13.FOO meaningfoopar}%+3

12.FOO meaningfoopar}%+4

11.FOO meaningfoopar}%

10.FOO meaningfoopar}%

9.FOO meaningfoopar

9.BAR meaningBARpar

}%

8.FOO meaningfoopar}%+8

7.FOO meaningfoopar}%

6.FOO meaningfoopar}%

5.FOO meaningfoopar

5.BAR meaningBARpar}%

4.FOO meaningfoopar}%+12

3.FOO meaningfoopar}%+13

2.FOO meaningfoopar}%

1.FOO meaningfoopar}%

0.FOO meaningfoopar

0.BAR meaningBARpar

end{document}

share|improve this answer

edited Jan 20 at 17:54

answered Jan 20 at 11:33

user4686

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  although I may need to think about it more: I think it is fine, although I have not really thought at depth. (ah ah).
  
  – user4686
  Jan 20 at 13:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Trying to mentally parse SmuggleMacroUpTwo makes my head hurt, but it appears to be airtight. You're really minimising the number of different macros that need to be assigned by keeping track of how many smuggling operations are currently ongoing and assigning them appropriate numbers :).
  
  – Circumscribe
  Jan 20 at 14:20
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe yes, after a group closes, new definition of a given index can only happen after or at same time its old meaning is actually needed, and when you open an inner group you can only then define macros with a higher index than what you had stored earlier as to be used after the outer group. Thus, ..., it should be airtight indeed, but indeed a bit head-spinning :)
  
  – user4686
  Jan 20 at 15:04
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Did you read " Of course, infty means that this macro has the value in all LaTeX documents of the world. ;-) " ? ;-)
  
  – marmot
  Jan 20 at 17:56
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @marmot I understood that I would become rich, did I get that right?
  
  – user4686
  Jan 20 at 17:58
  

  
  
  
  

 | 
show 1 more comment

9

This covers various things:

• smuggling a (no-parameter; see bottom of answer for macros with parameters) macro one level up,




• (bizarre, for fun) smuggle it two level up, but it remains undefined one level up,




• (more useful) smuggle one level up the contents of some macro, which is way to execute after group closes arbitrarily many tokens (if they are still defined at that level of course).

There is some subtlety in the way some globally defined auxiliary macros are indexed (their index is never globally increased), but I think it is ok. I hesitated about adding extra code to let them globally undefined once used, but did not do that finally. The same index will be used multiple times, but I think no non-yet needed thing ever gets overwritten. (although I may need to think about it more).

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%





makeatother



begin{document}



tt



begingroup

    typeout{DEPTH 1}%

    deffuzz{FUZZ defined at depth 1 and smuggled}%

    SmuggleMacrofuzz

    begingroup

        typeout{DEPTH 2}%

        defbaz{BAZ defined at depth 2 and smuggled up two}%

        SmuggleMacroUpTwobaz

        begingroup

            typeout{DEPTH 3}%

            DEPTH 3par

            deffoo{FOO defined at depth 3 and smuggled}%

            SmuggleMacrofoo

            defbar{BAR defined at depth 3 and smuggled up two}%

            SmuggleMacroUpTwobar

            END OF FIRST DEPTH 3par

        endgroup

        at depth 2 in-between the two depth 3par

        stringfoospace has meaning meaningfoospace and will be smuggled againpar

        stringbarspace has meaning meaningbarpar

        SmuggleMacrofoo

        begingroup

            DEPTH 3par

            typeout{SECOND TIMES AT DEPTH 3}%

            deffoofoo{FOOFOO defined at (second) depth 3 and smuggled}%

            SmuggleMacrofoofoo

            defTruc{par Hello, I am stringTrucspace 

                      I was defined at depth 3, but got executed

                      at depth 2!par

                      My own meaning is now: meaningTrucpar

                      typeout{DEPTH 2 AFTER 3}}%

            showTruc

            SmuggleValueTruc

            END OF SECOND DEPTH 3par

        endgroup

        BACK TO DEPTH 2 (after executing aftergroup tokens)par

        showTruc

        showfuzz

        showbaz

        showfoo

        showfoofoo

        showbar

    endgroup

    BACK TO DEPTH 1 (after executing aftergroup tokens)par

    stringfoospace has meaning meaningfoopar

    stringbarspace has meaning meaningbarpar

    typeout{DEPTH 1 AFTER 2}%

    showfuzz

    showbaz

    showfoo

    showfoofoo

    showbar

endgroup

BACK TO DEPTH 0 (after executing aftergroup tokens)par

stringfoospace has meaning meaningfoopar

typeout{DEPTH 0 AFTER 1}

showfuzz

showbaz

showfoo

showfoofoo

showbar



end{document}

DEPTH 1

DEPTH 2

DEPTH 3



SECOND TIMES AT DEPTH 3

> Truc=macro:

->par Hello, I am string Truc space I was defined at depth 3, but got executed at depth 2!par My own meaning is now: meaning Truc par typeout {DEPTH 2 AFTER 3}.

l.77             showTruc





DEPTH 2 AFTER 3

> Truc=undefined.

l.82         showTruc



> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.83         showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.84         showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.85         showfoo



> foofoo=macro:

->FOOFOO defined at (second) depth 3 and smuggled.

l.86         showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.87         showbar



DEPTH 1 AFTER 2

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.92     showfuzz



> baz=undefined.

l.93     showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.94     showfoo



> foofoo=undefined.

l.95     showfoofoo



> bar=macro:

->BAR defined at depth 3 and smuggled up two.

l.96     showbar



DEPTH 0 AFTER 1

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.101 showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.102 showbaz



> foo=undefined.

l.103 showfoo



> foofoo=undefined.

l.104 showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.105 showbar

---

---

Addendum

I am adding SmuggleMacroNtimesUp <number>.macro which will let the macro be known <number> levels up (of course, to the extent that its meaning uses tokens known at these levels...). Currently only parameter less macros, because this is how I started this...

Not much tested. In fact only tested on the single example below...

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#3expandafter{#3}}%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

% This one makes **executes the macro**

% at all levels 1, 2, ..., N up.

% Syntax SmuggleValueNtimesUp<number>.macro

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   deffoo{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.foopar}%

15.foopar}%+1

14.foopar}%+2

13.foopar}%+3

12.foopar}%+4

11.foopar}%

10.foopar}%

9.foopar}%

8.foopar}%+8

7.foopar}%

6.foopar}%

5.foopar}%

4.foopar}%+12

3.foopar}%+13

2.foopar}%

1.foopar}%

0.foopar



end{document}

---

---

Final version

Under pressure of @Circumscribe example I have refactored to handle macros with parameters. Not much tested... Added @marmot query about moving meaning to top level (aka bottom level...)

Thus the defined things are

• SmuggleMacro foo : makes foo keep its meaning one level up,




• SmuggleMacroUpTwo foo: makes foo recover its meaning two levels up (but not one level up...)




• SmuggleMacroNtimesUp <number>.foo : makes foo keep its meaning for the <number> less nested levels. Must be used with <number> at least 1.




• SmuggleValueNtimesUp <number>.foo : executes the meaning of foo for the <number> less nested levels, via aftergroup so as soon as a more nested level is left. foo itselfs (if not globally defined) is not smuggled.




• SmuggleMacroToTopfoo : makes foo known at bottom level (sic), but not at any intermediate level (of course while moving from inner to outer, once we reach bottom level, next time we enter a group foo will be known).

(if the code looks crazy, it is also because it tries to define the less auxiliary storage macros, by keeping this idea of never globally stepping the index of these storage things)

documentclass{article}

usepackage{geometry}

newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux#1#2{%

    globallet#1#2%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLet

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLet{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLet@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLet@aux#1#2#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#3%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#3%

}%

%longdef@gobblethree#1#2#3{}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleMacroNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



% SmuggleMacroToTop

defSmuggleMacroToTop{%

    ifnumcurrentgrouplevel=z@

          expandafter@gobble

    else

          expandafterSmuggleMacro@ToTop

    fi

}%

defSmuggleMacro@ToTop{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroToTop@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroToTop@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLetToTop{%

    ifnumcurrentgrouplevel=z@

          expandafterlet

    else

          expandafterSmuggleLet@ToTop

    fi

}%

defSmuggleLet@ToTop{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLetToTop@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLetToTop@aux#1#2#3{%

    globallet#1#3%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   defBAR#1#2#3{Hello, I am BAR}%

   SmuggleMacroBAR

   SmuggleMacroToTopBAR

   defBAZ#1#2#3#4{Hello, I am BAZ}%

   SmuggleMacroUpTwoBAZ

   deffoo#1#2{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.FOO meaningfoopar

16.BAZ meaningBAZpar

16.BAR meaningBARpar

defx{leavevmodellap{aaa }}%

SmuggleValueNtimesUp7.x

medskip}%

15.FOO meaningfoopar

15.BAZ meaningBAZpar

15.BAR meaningBARparmedskip}%

14.FOO meaningfoopar

14.BAZ meaningBAZpar

14.BAR meaningBARparmedskip}%

13.FOO meaningfoopar}%+3

12.FOO meaningfoopar}%+4

11.FOO meaningfoopar}%

10.FOO meaningfoopar}%

9.FOO meaningfoopar

9.BAR meaningBARpar

}%

8.FOO meaningfoopar}%+8

7.FOO meaningfoopar}%

6.FOO meaningfoopar}%

5.FOO meaningfoopar

5.BAR meaningBARpar}%

4.FOO meaningfoopar}%+12

3.FOO meaningfoopar}%+13

2.FOO meaningfoopar}%

1.FOO meaningfoopar}%

0.FOO meaningfoopar

0.BAR meaningBARpar

end{document}

share|improve this answer

edited Jan 20 at 17:54

answered Jan 20 at 11:33

user4686

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  although I may need to think about it more: I think it is fine, although I have not really thought at depth. (ah ah).
  
  – user4686
  Jan 20 at 13:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Trying to mentally parse SmuggleMacroUpTwo makes my head hurt, but it appears to be airtight. You're really minimising the number of different macros that need to be assigned by keeping track of how many smuggling operations are currently ongoing and assigning them appropriate numbers :).
  
  – Circumscribe
  Jan 20 at 14:20
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe yes, after a group closes, new definition of a given index can only happen after or at same time its old meaning is actually needed, and when you open an inner group you can only then define macros with a higher index than what you had stored earlier as to be used after the outer group. Thus, ..., it should be airtight indeed, but indeed a bit head-spinning :)
  
  – user4686
  Jan 20 at 15:04
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Did you read " Of course, infty means that this macro has the value in all LaTeX documents of the world. ;-) " ? ;-)
  
  – marmot
  Jan 20 at 17:56
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @marmot I understood that I would become rich, did I get that right?
  
  – user4686
  Jan 20 at 17:58
  

  
  
  
  

 | 
show 1 more comment

9

9

9

This covers various things:

• smuggling a (no-parameter; see bottom of answer for macros with parameters) macro one level up,




• (bizarre, for fun) smuggle it two level up, but it remains undefined one level up,




• (more useful) smuggle one level up the contents of some macro, which is way to execute after group closes arbitrarily many tokens (if they are still defined at that level of course).

There is some subtlety in the way some globally defined auxiliary macros are indexed (their index is never globally increased), but I think it is ok. I hesitated about adding extra code to let them globally undefined once used, but did not do that finally. The same index will be used multiple times, but I think no non-yet needed thing ever gets overwritten. (although I may need to think about it more).

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%





makeatother



begin{document}



tt



begingroup

    typeout{DEPTH 1}%

    deffuzz{FUZZ defined at depth 1 and smuggled}%

    SmuggleMacrofuzz

    begingroup

        typeout{DEPTH 2}%

        defbaz{BAZ defined at depth 2 and smuggled up two}%

        SmuggleMacroUpTwobaz

        begingroup

            typeout{DEPTH 3}%

            DEPTH 3par

            deffoo{FOO defined at depth 3 and smuggled}%

            SmuggleMacrofoo

            defbar{BAR defined at depth 3 and smuggled up two}%

            SmuggleMacroUpTwobar

            END OF FIRST DEPTH 3par

        endgroup

        at depth 2 in-between the two depth 3par

        stringfoospace has meaning meaningfoospace and will be smuggled againpar

        stringbarspace has meaning meaningbarpar

        SmuggleMacrofoo

        begingroup

            DEPTH 3par

            typeout{SECOND TIMES AT DEPTH 3}%

            deffoofoo{FOOFOO defined at (second) depth 3 and smuggled}%

            SmuggleMacrofoofoo

            defTruc{par Hello, I am stringTrucspace 

                      I was defined at depth 3, but got executed

                      at depth 2!par

                      My own meaning is now: meaningTrucpar

                      typeout{DEPTH 2 AFTER 3}}%

            showTruc

            SmuggleValueTruc

            END OF SECOND DEPTH 3par

        endgroup

        BACK TO DEPTH 2 (after executing aftergroup tokens)par

        showTruc

        showfuzz

        showbaz

        showfoo

        showfoofoo

        showbar

    endgroup

    BACK TO DEPTH 1 (after executing aftergroup tokens)par

    stringfoospace has meaning meaningfoopar

    stringbarspace has meaning meaningbarpar

    typeout{DEPTH 1 AFTER 2}%

    showfuzz

    showbaz

    showfoo

    showfoofoo

    showbar

endgroup

BACK TO DEPTH 0 (after executing aftergroup tokens)par

stringfoospace has meaning meaningfoopar

typeout{DEPTH 0 AFTER 1}

showfuzz

showbaz

showfoo

showfoofoo

showbar



end{document}

DEPTH 1

DEPTH 2

DEPTH 3



SECOND TIMES AT DEPTH 3

> Truc=macro:

->par Hello, I am string Truc space I was defined at depth 3, but got executed at depth 2!par My own meaning is now: meaning Truc par typeout {DEPTH 2 AFTER 3}.

l.77             showTruc





DEPTH 2 AFTER 3

> Truc=undefined.

l.82         showTruc



> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.83         showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.84         showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.85         showfoo



> foofoo=macro:

->FOOFOO defined at (second) depth 3 and smuggled.

l.86         showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.87         showbar



DEPTH 1 AFTER 2

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.92     showfuzz



> baz=undefined.

l.93     showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.94     showfoo



> foofoo=undefined.

l.95     showfoofoo



> bar=macro:

->BAR defined at depth 3 and smuggled up two.

l.96     showbar



DEPTH 0 AFTER 1

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.101 showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.102 showbaz



> foo=undefined.

l.103 showfoo



> foofoo=undefined.

l.104 showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.105 showbar

---

---

Addendum

I am adding SmuggleMacroNtimesUp <number>.macro which will let the macro be known <number> levels up (of course, to the extent that its meaning uses tokens known at these levels...). Currently only parameter less macros, because this is how I started this...

Not much tested. In fact only tested on the single example below...

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#3expandafter{#3}}%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

% This one makes **executes the macro**

% at all levels 1, 2, ..., N up.

% Syntax SmuggleValueNtimesUp<number>.macro

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   deffoo{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.foopar}%

15.foopar}%+1

14.foopar}%+2

13.foopar}%+3

12.foopar}%+4

11.foopar}%

10.foopar}%

9.foopar}%

8.foopar}%+8

7.foopar}%

6.foopar}%

5.foopar}%

4.foopar}%+12

3.foopar}%+13

2.foopar}%

1.foopar}%

0.foopar



end{document}

---

---

Final version

Under pressure of @Circumscribe example I have refactored to handle macros with parameters. Not much tested... Added @marmot query about moving meaning to top level (aka bottom level...)

Thus the defined things are

• SmuggleMacro foo : makes foo keep its meaning one level up,




• SmuggleMacroUpTwo foo: makes foo recover its meaning two levels up (but not one level up...)




• SmuggleMacroNtimesUp <number>.foo : makes foo keep its meaning for the <number> less nested levels. Must be used with <number> at least 1.




• SmuggleValueNtimesUp <number>.foo : executes the meaning of foo for the <number> less nested levels, via aftergroup so as soon as a more nested level is left. foo itselfs (if not globally defined) is not smuggled.




• SmuggleMacroToTopfoo : makes foo known at bottom level (sic), but not at any intermediate level (of course while moving from inner to outer, once we reach bottom level, next time we enter a group foo will be known).

(if the code looks crazy, it is also because it tries to define the less auxiliary storage macros, by keeping this idea of never globally stepping the index of these storage things)

documentclass{article}

usepackage{geometry}

newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux#1#2{%

    globallet#1#2%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLet

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLet{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLet@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLet@aux#1#2#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#3%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#3%

}%

%longdef@gobblethree#1#2#3{}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleMacroNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



% SmuggleMacroToTop

defSmuggleMacroToTop{%

    ifnumcurrentgrouplevel=z@

          expandafter@gobble

    else

          expandafterSmuggleMacro@ToTop

    fi

}%

defSmuggleMacro@ToTop{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroToTop@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroToTop@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLetToTop{%

    ifnumcurrentgrouplevel=z@

          expandafterlet

    else

          expandafterSmuggleLet@ToTop

    fi

}%

defSmuggleLet@ToTop{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLetToTop@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLetToTop@aux#1#2#3{%

    globallet#1#3%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   defBAR#1#2#3{Hello, I am BAR}%

   SmuggleMacroBAR

   SmuggleMacroToTopBAR

   defBAZ#1#2#3#4{Hello, I am BAZ}%

   SmuggleMacroUpTwoBAZ

   deffoo#1#2{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.FOO meaningfoopar

16.BAZ meaningBAZpar

16.BAR meaningBARpar

defx{leavevmodellap{aaa }}%

SmuggleValueNtimesUp7.x

medskip}%

15.FOO meaningfoopar

15.BAZ meaningBAZpar

15.BAR meaningBARparmedskip}%

14.FOO meaningfoopar

14.BAZ meaningBAZpar

14.BAR meaningBARparmedskip}%

13.FOO meaningfoopar}%+3

12.FOO meaningfoopar}%+4

11.FOO meaningfoopar}%

10.FOO meaningfoopar}%

9.FOO meaningfoopar

9.BAR meaningBARpar

}%

8.FOO meaningfoopar}%+8

7.FOO meaningfoopar}%

6.FOO meaningfoopar}%

5.FOO meaningfoopar

5.BAR meaningBARpar}%

4.FOO meaningfoopar}%+12

3.FOO meaningfoopar}%+13

2.FOO meaningfoopar}%

1.FOO meaningfoopar}%

0.FOO meaningfoopar

0.BAR meaningBARpar

end{document}

share|improve this answer

edited Jan 20 at 17:54

answered Jan 20 at 11:33

user4686

This covers various things:

• smuggling a (no-parameter; see bottom of answer for macros with parameters) macro one level up,




• (bizarre, for fun) smuggle it two level up, but it remains undefined one level up,




• (more useful) smuggle one level up the contents of some macro, which is way to execute after group closes arbitrarily many tokens (if they are still defined at that level of course).

There is some subtlety in the way some globally defined auxiliary macros are indexed (their index is never globally increased), but I think it is ok. I hesitated about adding extra code to let them globally undefined once used, but did not do that finally. The same index will be used multiple times, but I think no non-yet needed thing ever gets overwritten. (although I may need to think about it more).

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%





makeatother



begin{document}



tt



begingroup

    typeout{DEPTH 1}%

    deffuzz{FUZZ defined at depth 1 and smuggled}%

    SmuggleMacrofuzz

    begingroup

        typeout{DEPTH 2}%

        defbaz{BAZ defined at depth 2 and smuggled up two}%

        SmuggleMacroUpTwobaz

        begingroup

            typeout{DEPTH 3}%

            DEPTH 3par

            deffoo{FOO defined at depth 3 and smuggled}%

            SmuggleMacrofoo

            defbar{BAR defined at depth 3 and smuggled up two}%

            SmuggleMacroUpTwobar

            END OF FIRST DEPTH 3par

        endgroup

        at depth 2 in-between the two depth 3par

        stringfoospace has meaning meaningfoospace and will be smuggled againpar

        stringbarspace has meaning meaningbarpar

        SmuggleMacrofoo

        begingroup

            DEPTH 3par

            typeout{SECOND TIMES AT DEPTH 3}%

            deffoofoo{FOOFOO defined at (second) depth 3 and smuggled}%

            SmuggleMacrofoofoo

            defTruc{par Hello, I am stringTrucspace 

                      I was defined at depth 3, but got executed

                      at depth 2!par

                      My own meaning is now: meaningTrucpar

                      typeout{DEPTH 2 AFTER 3}}%

            showTruc

            SmuggleValueTruc

            END OF SECOND DEPTH 3par

        endgroup

        BACK TO DEPTH 2 (after executing aftergroup tokens)par

        showTruc

        showfuzz

        showbaz

        showfoo

        showfoofoo

        showbar

    endgroup

    BACK TO DEPTH 1 (after executing aftergroup tokens)par

    stringfoospace has meaning meaningfoopar

    stringbarspace has meaning meaningbarpar

    typeout{DEPTH 1 AFTER 2}%

    showfuzz

    showbaz

    showfoo

    showfoofoo

    showbar

endgroup

BACK TO DEPTH 0 (after executing aftergroup tokens)par

stringfoospace has meaning meaningfoopar

typeout{DEPTH 0 AFTER 1}

showfuzz

showbaz

showfoo

showfoofoo

showbar



end{document}

DEPTH 1

DEPTH 2

DEPTH 3



SECOND TIMES AT DEPTH 3

> Truc=macro:

->par Hello, I am string Truc space I was defined at depth 3, but got executed at depth 2!par My own meaning is now: meaning Truc par typeout {DEPTH 2 AFTER 3}.

l.77             showTruc





DEPTH 2 AFTER 3

> Truc=undefined.

l.82         showTruc



> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.83         showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.84         showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.85         showfoo



> foofoo=macro:

->FOOFOO defined at (second) depth 3 and smuggled.

l.86         showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.87         showbar



DEPTH 1 AFTER 2

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.92     showfuzz



> baz=undefined.

l.93     showbaz



> foo=macro:

->FOO defined at depth 3 and smuggled.

l.94     showfoo



> foofoo=undefined.

l.95     showfoofoo



> bar=macro:

->BAR defined at depth 3 and smuggled up two.

l.96     showbar



DEPTH 0 AFTER 1

> fuzz=macro:

->FUZZ defined at depth 1 and smuggled.

l.101 showfuzz



> baz=macro:

->BAZ defined at depth 2 and smuggled up two.

l.102 showbaz



> foo=undefined.

l.103 showfoo



> foofoo=undefined.

l.104 showfoofoo



> bar=macro:

->mathaccent "7016relax .

l.105 showbar

---

---

Addendum

I am adding SmuggleMacroNtimesUp <number>.macro which will let the macro be known <number> levels up (of course, to the extent that its meaning uses tokens known at these levels...). Currently only parameter less macros, because this is how I started this...

Not much tested. In fact only tested on the single example below...

documentclass{article}



newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux #1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#2expandafter{#2}}%

    aftergroupSmuggleValue

    aftergroup#1%

}%

defSmuggleValue{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleValue@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleValue@aux #1#2{%

    globallet#1#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    expandaftergdefexpandafter#1expandafter

        {expandafterdefexpandafter#3expandafter{#3}}%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

% This one makes **executes the macro**

% at all levels 1, 2, ..., N up.

% Syntax SmuggleValueNtimesUp<number>.macro

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   deffoo{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.foopar}%

15.foopar}%+1

14.foopar}%+2

13.foopar}%+3

12.foopar}%+4

11.foopar}%

10.foopar}%

9.foopar}%

8.foopar}%+8

7.foopar}%

6.foopar}%

5.foopar}%

4.foopar}%+12

3.foopar}%+13

2.foopar}%

1.foopar}%

0.foopar



end{document}

---

---

Final version

Under pressure of @Circumscribe example I have refactored to handle macros with parameters. Not much tested... Added @marmot query about moving meaning to top level (aka bottom level...)

Thus the defined things are

• SmuggleMacro foo : makes foo keep its meaning one level up,




• SmuggleMacroUpTwo foo: makes foo recover its meaning two levels up (but not one level up...)




• SmuggleMacroNtimesUp <number>.foo : makes foo keep its meaning for the <number> less nested levels. Must be used with <number> at least 1.




• SmuggleValueNtimesUp <number>.foo : executes the meaning of foo for the <number> less nested levels, via aftergroup so as soon as a more nested level is left. foo itselfs (if not globally defined) is not smuggled.




• SmuggleMacroToTopfoo : makes foo known at bottom level (sic), but not at any intermediate level (of course while moving from inner to outer, once we reach bottom level, next time we enter a group foo will be known).

(if the code looks crazy, it is also because it tries to define the less auxiliary storage macros, by keeping this idea of never globally stepping the index of these storage things)

documentclass{article}

usepackage{geometry}

newcountgoodiescount



makeatletter

defSmuggleMacro{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacro@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacro@aux#1#2{%

    globallet#1#2%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

% This one will let the macro be known two levels higher,

% but not if only one level higher

defSmuggleMacroUpTwo{%

    advancegoodiescount 1 % not done globally !

    expandafterSmuggleMacroUpTwo@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleMacroUpTwo@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLet

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLet{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLet@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLet@aux#1#2#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#2%

    aftergroup#1%

}%

%

% This one makes known the macros 1, 2, ..., N levels up.

% Syntax SmuggleMacroNtimesUp<number>.macro

defSmuggleMacroNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergrouplet

    aftergroup#3%

    aftergroup#1%

    expandafterSmuggleMacroNtimesUp@athenumexpr#2-1.#3%

}%

%longdef@gobblethree#1#2#3{}%

defSmuggleMacroNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleMacroNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleNtimesUp@loop#1{%

    aftergroup#1%

    if.#1expandafteraftergroup

    else

       expandafterSmuggleNtimesUp@loop

    fi

}%

defSmuggleValueNtimesUp{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleValueNtimesUp@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleValueNtimesUp@aux#1#2.#3{%

    globallet#1#3%

    aftergroup#1%

    expandafterSmuggleValueNtimesUp@athenumexpr#2-1.#1%

}%

defSmuggleValueNtimesUp@a#1{%

    if0#1expandafter@gobbletwo

    else

       aftergroupSmuggleValueNtimesUp

       aftergroup #1%

       expandafterSmuggleNtimesUp@loop

    fi

}%



% SmuggleMacroToTop

defSmuggleMacroToTop{%

    ifnumcurrentgrouplevel=z@

          expandafter@gobble

    else

          expandafterSmuggleMacro@ToTop

    fi

}%

defSmuggleMacro@ToTop{%

    advancegoodiescount 1 % not done globally!

    expandafterSmuggleMacroToTop@aux

                csname Goodiesthegoodiescountendcsname

}%     

defSmuggleMacroToTop@aux#1#2{%

    globallet#1#2%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

defSmuggleLetToTop{%

    ifnumcurrentgrouplevel=z@

          expandafterlet

    else

          expandafterSmuggleLet@ToTop

    fi

}%

defSmuggleLet@ToTop{%

    advancegoodiescount 1 % not done globally ! 

    expandafterSmuggleLetToTop@aux

                csname Goodiesthegoodiescountendcsname

}%

defSmuggleLetToTop@aux#1#2#3{%

    globallet#1#3%

    aftergroupSmuggleLetToTop

    aftergroup#2%

    aftergroup#1%

}%

makeatother



begin{document}



ttfamily



deffoo{}

{{{{{{{{% 8 deep

{{{{{{{{% 16 deep

   defBAR#1#2#3{Hello, I am BAR}%

   SmuggleMacroBAR

   SmuggleMacroToTopBAR

   defBAZ#1#2#3#4{Hello, I am BAZ}%

   SmuggleMacroUpTwoBAZ

   deffoo#1#2{FOO defined at 16 will be made known all the way to 3}%

   SmuggleMacroNtimesUp13.foo

16.FOO meaningfoopar

16.BAZ meaningBAZpar

16.BAR meaningBARpar

defx{leavevmodellap{aaa }}%

SmuggleValueNtimesUp7.x

medskip}%

15.FOO meaningfoopar

15.BAZ meaningBAZpar

15.BAR meaningBARparmedskip}%

14.FOO meaningfoopar

14.BAZ meaningBAZpar

14.BAR meaningBARparmedskip}%

13.FOO meaningfoopar}%+3

12.FOO meaningfoopar}%+4

11.FOO meaningfoopar}%

10.FOO meaningfoopar}%

9.FOO meaningfoopar

9.BAR meaningBARpar

}%

8.FOO meaningfoopar}%+8

7.FOO meaningfoopar}%

6.FOO meaningfoopar}%

5.FOO meaningfoopar

5.BAR meaningBARpar}%

4.FOO meaningfoopar}%+12

3.FOO meaningfoopar}%+13

2.FOO meaningfoopar}%

1.FOO meaningfoopar}%

0.FOO meaningfoopar

0.BAR meaningBARpar

end{document}

share|improve this answer

edited Jan 20 at 17:54

answered Jan 20 at 11:33

user4686

share|improve this answer

share|improve this answer

edited Jan 20 at 17:54

edited Jan 20 at 17:54

edited Jan 20 at 17:54

answered Jan 20 at 11:33

user4686

answered Jan 20 at 11:33

user4686

answered Jan 20 at 11:33

user4686

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  although I may need to think about it more: I think it is fine, although I have not really thought at depth. (ah ah).
  
  – user4686
  Jan 20 at 13:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Trying to mentally parse SmuggleMacroUpTwo makes my head hurt, but it appears to be airtight. You're really minimising the number of different macros that need to be assigned by keeping track of how many smuggling operations are currently ongoing and assigning them appropriate numbers :).
  
  – Circumscribe
  Jan 20 at 14:20
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe yes, after a group closes, new definition of a given index can only happen after or at same time its old meaning is actually needed, and when you open an inner group you can only then define macros with a higher index than what you had stored earlier as to be used after the outer group. Thus, ..., it should be airtight indeed, but indeed a bit head-spinning :)
  
  – user4686
  Jan 20 at 15:04
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Did you read " Of course, infty means that this macro has the value in all LaTeX documents of the world. ;-) " ? ;-)
  
  – marmot
  Jan 20 at 17:56
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @marmot I understood that I would become rich, did I get that right?
  
  – user4686
  Jan 20 at 17:58
  

  
  
  
  

 | 
show 1 more comment

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  although I may need to think about it more: I think it is fine, although I have not really thought at depth. (ah ah).
  
  – user4686
  Jan 20 at 13:33
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Trying to mentally parse SmuggleMacroUpTwo makes my head hurt, but it appears to be airtight. You're really minimising the number of different macros that need to be assigned by keeping track of how many smuggling operations are currently ongoing and assigning them appropriate numbers :).
  
  – Circumscribe
  Jan 20 at 14:20
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @Circumscribe yes, after a group closes, new definition of a given index can only happen after or at same time its old meaning is actually needed, and when you open an inner group you can only then define macros with a higher index than what you had stored earlier as to be used after the outer group. Thus, ..., it should be airtight indeed, but indeed a bit head-spinning :)
  
  – user4686
  Jan 20 at 15:04
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Did you read " Of course, infty means that this macro has the value in all LaTeX documents of the world. ;-) " ? ;-)
  
  – marmot
  Jan 20 at 17:56
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @marmot I understood that I would become rich, did I get that right?
  
  – user4686
  Jan 20 at 17:58
  

  
  
  
  

although I may need to think about it more: I think it is fine, although I have not really thought at depth. (ah ah).

– user4686
Jan 20 at 13:33

although I may need to think about it more: I think it is fine, although I have not really thought at depth. (ah ah).

– user4686
Jan 20 at 13:33

Trying to mentally parse SmuggleMacroUpTwo makes my head hurt, but it appears to be airtight. You're really minimising the number of different macros that need to be assigned by keeping track of how many smuggling operations are currently ongoing and assigning them appropriate numbers :).

– Circumscribe
Jan 20 at 14:20

Trying to mentally parse SmuggleMacroUpTwo makes my head hurt, but it appears to be airtight. You're really minimising the number of different macros that need to be assigned by keeping track of how many smuggling operations are currently ongoing and assigning them appropriate numbers :).

– Circumscribe
Jan 20 at 14:20

@Circumscribe yes, after a group closes, new definition of a given index can only happen after or at same time its old meaning is actually needed, and when you open an inner group you can only then define macros with a higher index than what you had stored earlier as to be used after the outer group. Thus, ..., it should be airtight indeed, but indeed a bit head-spinning :)

– user4686
Jan 20 at 15:04

@Circumscribe yes, after a group closes, new definition of a given index can only happen after or at same time its old meaning is actually needed, and when you open an inner group you can only then define macros with a higher index than what you had stored earlier as to be used after the outer group. Thus, ..., it should be airtight indeed, but indeed a bit head-spinning :)

– user4686
Jan 20 at 15:04

Did you read " Of course, infty means that this macro has the value in all LaTeX documents of the world. ;-) " ? ;-)

– marmot
Jan 20 at 17:56

Did you read " Of course, infty means that this macro has the value in all LaTeX documents of the world. ;-) " ? ;-)

– marmot
Jan 20 at 17:56

@marmot I understood that I would become rich, did I get that right?

– user4686
Jan 20 at 17:58

@marmot I understood that I would become rich, did I get that right?

– user4686
Jan 20 at 17:58

 | 
show 1 more comment

Thanks for contributing an answer to TeX - LaTeX Stack Exchange!

• Please be sure to answer the question. Provide details and share your research!

But avoid …

• Asking for help, clarification, or responding to other answers.


• Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

draft saved

draft discarded

Thanks for contributing an answer to TeX - LaTeX Stack Exchange!

• Please be sure to answer the question. Provide details and share your research!

But avoid …

• Asking for help, clarification, or responding to other answers.


• Making statements based on opinion; back them up with references or personal experience.

To learn more, see our tips on writing great answers.

draft saved

draft discarded

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f470961%2fhow-to-properly-smuggle-with-or-even-without-tikz%23new-answer', 'question_page');
}
);

Post as a guest

Name

Email

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

Sign up or log in

StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Sign up using Google

Sign up using Facebook

Sign up using Email and Password

Post as a guest

Name

Email

Required, but never shown

Name

Name

Email

Required, but never shown

Email

Required, but never shown

Email

Required, but never shown

Email

Required, but never shown

Name

Name

Email

Required, but never shown

Email

Required, but never shown

Email

Required, but never shown

Email

Required, but never shown

This page is only for reference, If you need detailed information, please check here