tikzcd doesn’t work in custom environment

Clash Royale CLAN TAG#URR8PPP

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1
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I have a document class test.cls, in which I have defined a custom environment myenvironment using the environ package as follows:

NeedsTeXFormatLaTeX2e
ProvidesClasstest
LoadClassarticle
RequirePackagechangepage
RequirePackageenviron
NewEnvironmyenvironment
 beginadjustwidth10pt10pt
 BODY
 endadjustwidth

Now if I try to use tikz-cd inside myenvironment, it fails, e.g. this gives an error:

beginmyenvironment
 [begintikzcd
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

On the other hand, if I simply write it like this—that is, I substitute what the environment would do—, everything is fine:

beginadjustwidth10pt10pt
 [begintikzcd
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endadjustwidth

What could be the problem?

environments tikz-cd

share|improve this question

asked 1 hour ago

Hermetically Sealed Halibut

1086

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Why do you have to collect the contents of myenvironment? Isn't LaTeX's newenvironment is enough here?
  – Phelype Oleinik
  58 mins ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Indeed it is enough, I guess I just got too used to the environ package to notice. I’ve tried it now and it solves the problem. I still wonder why it doesn’t work with environ though.
  – Hermetically Sealed Halibut
  54 mins ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I posted an answer explaining why it doesn't work :)
  – Phelype Oleinik
  35 mins ago
  

  
  
  
  

add a comment | 

up vote
1
down vote

favorite

I have a document class test.cls, in which I have defined a custom environment myenvironment using the environ package as follows:

NeedsTeXFormatLaTeX2e
ProvidesClasstest
LoadClassarticle
RequirePackagechangepage
RequirePackageenviron
NewEnvironmyenvironment
 beginadjustwidth10pt10pt
 BODY
 endadjustwidth

Now if I try to use tikz-cd inside myenvironment, it fails, e.g. this gives an error:

beginmyenvironment
 [begintikzcd
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

On the other hand, if I simply write it like this—that is, I substitute what the environment would do—, everything is fine:

beginadjustwidth10pt10pt
 [begintikzcd
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endadjustwidth

What could be the problem?

environments tikz-cd

share|improve this question

asked 1 hour ago

Hermetically Sealed Halibut

1086

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Why do you have to collect the contents of myenvironment? Isn't LaTeX's newenvironment is enough here?
  – Phelype Oleinik
  58 mins ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Indeed it is enough, I guess I just got too used to the environ package to notice. I’ve tried it now and it solves the problem. I still wonder why it doesn’t work with environ though.
  – Hermetically Sealed Halibut
  54 mins ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I posted an answer explaining why it doesn't work :)
  – Phelype Oleinik
  35 mins ago
  

  
  
  
  

add a comment | 

up vote
1
down vote

favorite

up vote
1
down vote

favorite

I have a document class test.cls, in which I have defined a custom environment myenvironment using the environ package as follows:

NeedsTeXFormatLaTeX2e
ProvidesClasstest
LoadClassarticle
RequirePackagechangepage
RequirePackageenviron
NewEnvironmyenvironment
 beginadjustwidth10pt10pt
 BODY
 endadjustwidth

Now if I try to use tikz-cd inside myenvironment, it fails, e.g. this gives an error:

beginmyenvironment
 [begintikzcd
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

On the other hand, if I simply write it like this—that is, I substitute what the environment would do—, everything is fine:

beginadjustwidth10pt10pt
 [begintikzcd
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endadjustwidth

What could be the problem?

environments tikz-cd

share|improve this question

asked 1 hour ago

Hermetically Sealed Halibut

1086

I have a document class test.cls, in which I have defined a custom environment myenvironment using the environ package as follows:

NeedsTeXFormatLaTeX2e
ProvidesClasstest
LoadClassarticle
RequirePackagechangepage
RequirePackageenviron
NewEnvironmyenvironment
 beginadjustwidth10pt10pt
 BODY
 endadjustwidth

Now if I try to use tikz-cd inside myenvironment, it fails, e.g. this gives an error:

beginmyenvironment
 [begintikzcd
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

On the other hand, if I simply write it like this—that is, I substitute what the environment would do—, everything is fine:

beginadjustwidth10pt10pt
 [begintikzcd
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endadjustwidth

What could be the problem?

environments tikz-cd

environments tikz-cd

share|improve this question

asked 1 hour ago

Hermetically Sealed Halibut

1086

share|improve this question

asked 1 hour ago

Hermetically Sealed Halibut

1086

share|improve this question

share|improve this question

asked 1 hour ago

Hermetically Sealed Halibut

1086

asked 1 hour ago

Hermetically Sealed Halibut

1086

asked 1 hour ago

Hermetically Sealed Halibut

1086

1086

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Why do you have to collect the contents of myenvironment? Isn't LaTeX's newenvironment is enough here?
  – Phelype Oleinik
  58 mins ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Indeed it is enough, I guess I just got too used to the environ package to notice. I’ve tried it now and it solves the problem. I still wonder why it doesn’t work with environ though.
  – Hermetically Sealed Halibut
  54 mins ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I posted an answer explaining why it doesn't work :)
  – Phelype Oleinik
  35 mins ago
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  Why do you have to collect the contents of myenvironment? Isn't LaTeX's newenvironment is enough here?
  – Phelype Oleinik
  58 mins ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  Indeed it is enough, I guess I just got too used to the environ package to notice. I’ve tried it now and it solves the problem. I still wonder why it doesn’t work with environ though.
  – Hermetically Sealed Halibut
  54 mins ago
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  I posted an answer explaining why it doesn't work :)
  – Phelype Oleinik
  35 mins ago
  

  
  
  
  

2

2

Why do you have to collect the contents of myenvironment? Isn't LaTeX's newenvironment is enough here?
– Phelype Oleinik
58 mins ago

Why do you have to collect the contents of myenvironment? Isn't LaTeX's newenvironment is enough here?
– Phelype Oleinik
58 mins ago

Indeed it is enough, I guess I just got too used to the environ package to notice. I’ve tried it now and it solves the problem. I still wonder why it doesn’t work with environ though.
– Hermetically Sealed Halibut
54 mins ago

Indeed it is enough, I guess I just got too used to the environ package to notice. I’ve tried it now and it solves the problem. I still wonder why it doesn’t work with environ though.
– Hermetically Sealed Halibut
54 mins ago

I posted an answer explaining why it doesn't work :)
– Phelype Oleinik
35 mins ago

I posted an answer explaining why it doesn't work :)
– Phelype Oleinik
35 mins ago

add a comment | 

2 Answers
2

active

oldest

votes

up vote
2
down vote



accepted

You have to be very careful when collecting an environment with environ, as this usually brings problems. When environ collects its the environment it "freezes" the tokens of the environment. That is, everything will mean what it was when the outer environment was called. This will break every environment that somewhere redefines the category codes of any character (verbatim environments, for example), or that redefine some character.

In this particular case, the meaning of the & changes when you enter tikzcd. See:

documentclassarticle
usepackageamsmath
usepackagetikz-cd
begindocument

When textttenviron collects the environment:

ttfamilymeaning&

bigskip

What texttttikzcd expects texttt& to be:

begintikzcd
vbox to textwidthttfamilymeaning&
endtikzcd
enddocument

So basically, inside tikzcd, & means one thing, but when environ reads it, it freezes the alignment tab character & meaning, so it won't work.

So use environ only when you are sure that you need it and you are sure that it won't break anything.

In your case you don't need environ at all because you aren't applying any operation to the collected contents, so this:

newenvironmentmyenvironment
 %
 beginadjustwidth10pt10pt%
 %
 %
 endadjustwidth
 

will suffice.

share|improve this answer

answered 35 mins ago

Phelype Oleinik

18.9k54173

add a comment | 

up vote
2
down vote

It doesn't work because myenvironment absorbs the body of the environment as a macro argument; in these cases you have to pass ampersand replacement=& to tikzcd and use & instead of &, so

beginmyenvironment
 [begintikzcd[ampersand replacement=&
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

However, there's no need for environ here:

newenvironmentmyenvironment
 beginadjustwidth10pt10pt
 endadjustwidth

will do as well. And better, actually.

The cargo-cult version would be

newenvironmentmyenvironment
 adjustwidth10pt10pt
 endadjustwidth

share|improve this answer

answered 36 mins ago

egreg

691k8518383087

add a comment | 

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

active

oldest

votes

active

oldest

votes

up vote
2
down vote



accepted

You have to be very careful when collecting an environment with environ, as this usually brings problems. When environ collects its the environment it "freezes" the tokens of the environment. That is, everything will mean what it was when the outer environment was called. This will break every environment that somewhere redefines the category codes of any character (verbatim environments, for example), or that redefine some character.

In this particular case, the meaning of the & changes when you enter tikzcd. See:

documentclassarticle
usepackageamsmath
usepackagetikz-cd
begindocument

When textttenviron collects the environment:

ttfamilymeaning&

bigskip

What texttttikzcd expects texttt& to be:

begintikzcd
vbox to textwidthttfamilymeaning&
endtikzcd
enddocument

So basically, inside tikzcd, & means one thing, but when environ reads it, it freezes the alignment tab character & meaning, so it won't work.

So use environ only when you are sure that you need it and you are sure that it won't break anything.

In your case you don't need environ at all because you aren't applying any operation to the collected contents, so this:

newenvironmentmyenvironment
 %
 beginadjustwidth10pt10pt%
 %
 %
 endadjustwidth
 

will suffice.

share|improve this answer

answered 35 mins ago

Phelype Oleinik

18.9k54173

add a comment | 

up vote
2
down vote



accepted

You have to be very careful when collecting an environment with environ, as this usually brings problems. When environ collects its the environment it "freezes" the tokens of the environment. That is, everything will mean what it was when the outer environment was called. This will break every environment that somewhere redefines the category codes of any character (verbatim environments, for example), or that redefine some character.

In this particular case, the meaning of the & changes when you enter tikzcd. See:

documentclassarticle
usepackageamsmath
usepackagetikz-cd
begindocument

When textttenviron collects the environment:

ttfamilymeaning&

bigskip

What texttttikzcd expects texttt& to be:

begintikzcd
vbox to textwidthttfamilymeaning&
endtikzcd
enddocument

So basically, inside tikzcd, & means one thing, but when environ reads it, it freezes the alignment tab character & meaning, so it won't work.

So use environ only when you are sure that you need it and you are sure that it won't break anything.

In your case you don't need environ at all because you aren't applying any operation to the collected contents, so this:

newenvironmentmyenvironment
 %
 beginadjustwidth10pt10pt%
 %
 %
 endadjustwidth
 

will suffice.

share|improve this answer

answered 35 mins ago

Phelype Oleinik

18.9k54173

add a comment | 

up vote
2
down vote



accepted

up vote
2
down vote



accepted

You have to be very careful when collecting an environment with environ, as this usually brings problems. When environ collects its the environment it "freezes" the tokens of the environment. That is, everything will mean what it was when the outer environment was called. This will break every environment that somewhere redefines the category codes of any character (verbatim environments, for example), or that redefine some character.

In this particular case, the meaning of the & changes when you enter tikzcd. See:

documentclassarticle
usepackageamsmath
usepackagetikz-cd
begindocument

When textttenviron collects the environment:

ttfamilymeaning&

bigskip

What texttttikzcd expects texttt& to be:

begintikzcd
vbox to textwidthttfamilymeaning&
endtikzcd
enddocument

So basically, inside tikzcd, & means one thing, but when environ reads it, it freezes the alignment tab character & meaning, so it won't work.

So use environ only when you are sure that you need it and you are sure that it won't break anything.

In your case you don't need environ at all because you aren't applying any operation to the collected contents, so this:

newenvironmentmyenvironment
 %
 beginadjustwidth10pt10pt%
 %
 %
 endadjustwidth
 

will suffice.

share|improve this answer

answered 35 mins ago

Phelype Oleinik

18.9k54173

You have to be very careful when collecting an environment with environ, as this usually brings problems. When environ collects its the environment it "freezes" the tokens of the environment. That is, everything will mean what it was when the outer environment was called. This will break every environment that somewhere redefines the category codes of any character (verbatim environments, for example), or that redefine some character.

In this particular case, the meaning of the & changes when you enter tikzcd. See:

documentclassarticle
usepackageamsmath
usepackagetikz-cd
begindocument

When textttenviron collects the environment:

ttfamilymeaning&

bigskip

What texttttikzcd expects texttt& to be:

begintikzcd
vbox to textwidthttfamilymeaning&
endtikzcd
enddocument

So basically, inside tikzcd, & means one thing, but when environ reads it, it freezes the alignment tab character & meaning, so it won't work.

So use environ only when you are sure that you need it and you are sure that it won't break anything.

In your case you don't need environ at all because you aren't applying any operation to the collected contents, so this:

newenvironmentmyenvironment
 %
 beginadjustwidth10pt10pt%
 %
 %
 endadjustwidth
 

will suffice.

share|improve this answer

answered 35 mins ago

Phelype Oleinik

18.9k54173

share|improve this answer

share|improve this answer

answered 35 mins ago

Phelype Oleinik

18.9k54173

answered 35 mins ago

Phelype Oleinik

18.9k54173

answered 35 mins ago

Phelype Oleinik

18.9k54173

18.9k54173

add a comment | 

add a comment | 

up vote
2
down vote

It doesn't work because myenvironment absorbs the body of the environment as a macro argument; in these cases you have to pass ampersand replacement=& to tikzcd and use & instead of &, so

beginmyenvironment
 [begintikzcd[ampersand replacement=&
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

However, there's no need for environ here:

newenvironmentmyenvironment
 beginadjustwidth10pt10pt
 endadjustwidth

will do as well. And better, actually.

The cargo-cult version would be

newenvironmentmyenvironment
 adjustwidth10pt10pt
 endadjustwidth

share|improve this answer

answered 36 mins ago

egreg

691k8518383087

add a comment | 

up vote
2
down vote

It doesn't work because myenvironment absorbs the body of the environment as a macro argument; in these cases you have to pass ampersand replacement=& to tikzcd and use & instead of &, so

beginmyenvironment
 [begintikzcd[ampersand replacement=&
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

However, there's no need for environ here:

newenvironmentmyenvironment
 beginadjustwidth10pt10pt
 endadjustwidth

will do as well. And better, actually.

The cargo-cult version would be

newenvironmentmyenvironment
 adjustwidth10pt10pt
 endadjustwidth

share|improve this answer

answered 36 mins ago

egreg

691k8518383087

add a comment | 

up vote
2
down vote

up vote
2
down vote

It doesn't work because myenvironment absorbs the body of the environment as a macro argument; in these cases you have to pass ampersand replacement=& to tikzcd and use & instead of &, so

beginmyenvironment
 [begintikzcd[ampersand replacement=&
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

However, there's no need for environ here:

newenvironmentmyenvironment
 beginadjustwidth10pt10pt
 endadjustwidth

will do as well. And better, actually.

The cargo-cult version would be

newenvironmentmyenvironment
 adjustwidth10pt10pt
 endadjustwidth

share|improve this answer

answered 36 mins ago

egreg

691k8518383087

It doesn't work because myenvironment absorbs the body of the environment as a macro argument; in these cases you have to pass ampersand replacement=& to tikzcd and use & instead of &, so

beginmyenvironment
 [begintikzcd[ampersand replacement=&
 1 ar[r] ar[d] & 2 ar[d] \
 3 ar[r] & 4 \
 endtikzcd]
endmyenvironment

However, there's no need for environ here:

newenvironmentmyenvironment
 beginadjustwidth10pt10pt
 endadjustwidth

will do as well. And better, actually.

The cargo-cult version would be

newenvironmentmyenvironment
 adjustwidth10pt10pt
 endadjustwidth

share|improve this answer

answered 36 mins ago

egreg

691k8518383087

share|improve this answer

share|improve this answer

answered 36 mins ago

egreg

691k8518383087

answered 36 mins ago

egreg

691k8518383087

answered 36 mins ago

egreg

691k8518383087

691k8518383087

add a comment | 

add a comment | 

 

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