How can I check if the current code is inside a certain environment?How can I check if the current code is...
Stereotypical names
Female=gender counterpart?
Why does this part of the Space Shuttle launch pad seem to be floating in air?
In Star Trek IV, why did the Bounty go back to a time when whales were already rare?
Java - What do constructor type arguments mean when placed *before* the type?
Can a Bard use an arcane focus?
Identify a stage play about a VR experience in which participants are encouraged to simulate performing horrific activities
Invariance of results when scaling explanatory variables in logistic regression, is there a proof?
A social experiment. What is the worst that can happen?
Is there enough fresh water in the world to eradicate the drinking water crisis?
Can I rely on these GitHub repository files?
The most efficient algorithm to find all possible integer pairs which sum to a given integer
Latex for-and in equation
How to deal with or prevent idle in the test team?
Is it okay / does it make sense for another player to join a running game of Munchkin?
Adding empty element to declared container without declaring type of element
How to interpret the phrase "t’en a fait voir à toi"?
Issues with Installing Powershell to Kali Machine
How to deal with loss of decision making power over a change?
How can I raise concerns with a new DM about XP splitting?
What should I use for Mishna study?
Proof of Lemma: Every integer can be written as a product of primes
Giant Toughroad SLR 2 for 200 miles in two days, will it make it?
Why is delta-v is the most useful quantity for planning space travel?
How can I check if the current code is inside a certain environment?
How can I check if the current code is inside a tikzpicture?Detecting if inside a tikzpictureHow to test if I'm currently in a footnote or notHow can I center arbitrary content between two horizontal lines?Checking environment in order to end itHow to access name of environment in its own definitionpassing options to the newenvironmentUse column-separator & (ampersand) inside newenvironmentHow can I create a customized environment?Environments with matched parens in begin and endAllow only certain commands in own environmentCompiler Error when Creating a Macro/EnvironmentHow can I know if I am inside an equation environment if it's nested with others?Symbol at the end of an environmentHow to delete the contents of the current paragraph and “re-start” from the beginning?Using a split environment inside every equation environment
I would like to define a command which checks if it is executed inside a certain environment. Like this:
documentclass{article}
newenvironment{myenv}[0]{at start}{ at end}
newcommand{inner}[0]{%
% if iside a myenv
(inner)
% else
begin{myenv}
(inner)%
end{myenv}
% end
}
begin{document}
begin{myenv}
inner
end{myenv}
inner
end{document}
See the definition of inner. Is an if-condition of this form possible?
environments conditionals
edited May 20 '11 at 14:15
lockstep
192k53593723
asked May 20 '11 at 8:17
Nickolay KolevNickolay Kolev
1,70641731
add a comment |
I would like to define a command which checks if it is executed inside a certain environment. Like this:
documentclass{article}
newenvironment{myenv}[0]{at start}{ at end}
newcommand{inner}[0]{%
% if iside a myenv
(inner)
% else
begin{myenv}
(inner)%
end{myenv}
% end
}
begin{document}
begin{myenv}
inner
end{myenv}
inner
end{document}
See the definition of inner. Is an if-condition of this form possible?
environments conditionals
edited May 20 '11 at 14:15
lockstep
192k53593723
asked May 20 '11 at 8:17
Nickolay KolevNickolay Kolev
1,70641731
Related Question: Detecting if inside a tikzpicture
– Peter Grill
Nov 7 '18 at 23:30
add a comment |
I would like to define a command which checks if it is executed inside a certain environment. Like this:
documentclass{article}
newenvironment{myenv}[0]{at start}{ at end}
newcommand{inner}[0]{%
% if iside a myenv
(inner)
% else
begin{myenv}
(inner)%
end{myenv}
% end
}
begin{document}
begin{myenv}
inner
end{myenv}
inner
end{document}
See the definition of inner. Is an if-condition of this form possible?
environments conditionals
edited May 20 '11 at 14:15
lockstep
192k53593723
asked May 20 '11 at 8:17
Nickolay KolevNickolay Kolev
1,70641731
I would like to define a command which checks if it is executed inside a certain environment. Like this:
documentclass{article}
newenvironment{myenv}[0]{at start}{ at end}
newcommand{inner}[0]{%
% if iside a myenv
(inner)
% else
begin{myenv}
(inner)%
end{myenv}
% end
}
begin{document}
begin{myenv}
inner
end{myenv}
inner
end{document}
See the definition of inner. Is an if-condition of this form possible?
environments conditionals
environments conditionals
edited May 20 '11 at 14:15
lockstep
192k53593723
asked May 20 '11 at 8:17
Nickolay KolevNickolay Kolev
1,70641731
edited May 20 '11 at 14:15
lockstep
192k53593723
asked May 20 '11 at 8:17
Nickolay KolevNickolay Kolev
1,70641731
edited May 20 '11 at 14:15
lockstep
192k53593723
edited May 20 '11 at 14:15
lockstep
192k53593723
edited May 20 '11 at 14:15
lockstep
192k53593723
192k53593723
asked May 20 '11 at 8:17
Nickolay KolevNickolay Kolev
1,70641731
asked May 20 '11 at 8:17
Nickolay KolevNickolay Kolev
1,70641731
asked May 20 '11 at 8:17
Nickolay KolevNickolay Kolev
1,70641731
1,70641731
Related Question: Detecting if inside a tikzpicture
– Peter Grill
Nov 7 '18 at 23:30
add a comment |
Related Question: Detecting if inside a tikzpicture
– Peter Grill
Nov 7 '18 at 23:30
Related Question: Detecting if inside a tikzpicture
– Peter Grill
Nov 7 '18 at 23:30
Related Question: Detecting if inside a tikzpicture
– Peter Grill
Nov 7 '18 at 23:30
add a comment |
2 Answers
2
active
oldest
votes
LaTeX keeps the current environment in the macro @currenvir
makeatletter
newcommand{inner}{%
ifx@currenvir@myenvname
(inner)
else
begin{myenv}(inner)end{myenv}
fi}
newcommand*@myenvname{myenv}
makeatother
Another approach would be to define a global conditional that's set to true by myenv start code and to false by myenv end code. It depends mostly on what you are expecting from the myenv environment: can it appear nested inside itself?
answered May 20 '11 at 8:32
egregegreg
729k8819263235
2
@Nickoley: Note that this doesn't work any longer wheninneris used inside another environment inside themyenvenvironment, e.g. begin{myenv}begin{center}innerend{center}end{myenv}. Then@currenvir` will becenterwheninneris expanded.
– Martin Scharrer♦
May 20 '11 at 10:28
This does not seem to work on my end. It produces the "else" output both inside and outside amyenvenvironment. However, both@currenvirand@myenvnamedisplay the correct (and the same) output when placed inside the environment.
– Danny Hansen
13 mins ago
@DannyHansen Right: in some update during the last eight years, the LaTeX kernel changed@currenvirto not belongas it used to be. Fixed by adding a*.
– egreg
4 mins ago
add a comment |
If you use pdftex, etex or xetex (I mean engine), you can define a fully expandable test:
makeatletter defIfEnvir #1%
% implicit #2 "what if true"
% implicit #3 "what if false"
{%
ifnum strcmp{@currenvir}{#1}=0
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
}
makeatother
Such a conditional is defined in the gmutils package: @ifenvir, but there it's protected for some reason.
edited May 20 '11 at 9:40
Martin Scharrer♦
203k47651825
answered May 20 '11 at 9:01
NatrorNatror
612
If you prefer the if… … else … fi form, just replace expandafter@first/secondoftwo with your stuff, but i'd suggest the arguments-form because it's robust to unbalanced if's.
– Natror
May 20 '11 at 9:06
Please indent your code with four spaces (or use the '101010' button to do this) so that it is properly highlighted. Please don't use HTML for code formatting. Thanks.
– Martin Scharrer♦
May 20 '11 at 9:39
the command isstrcmpin XeTeX andpdfstrcmpin pdfTeX. One can loadpdftexcmdsand usepdf@strcmpin all engines (including LuaTeX).
– egreg
May 20 '11 at 10:04
add a 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
});
}
});
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
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f18652%2fhow-can-i-check-if-the-current-code-is-inside-a-certain-environment%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
LaTeX keeps the current environment in the macro @currenvir
makeatletter
newcommand{inner}{%
ifx@currenvir@myenvname
(inner)
else
begin{myenv}(inner)end{myenv}
fi}
newcommand*@myenvname{myenv}
makeatother
Another approach would be to define a global conditional that's set to true by myenv start code and to false by myenv end code. It depends mostly on what you are expecting from the myenv environment: can it appear nested inside itself?
answered May 20 '11 at 8:32
egregegreg
729k8819263235
2
@Nickoley: Note that this doesn't work any longer wheninneris used inside another environment inside themyenvenvironment, e.g. begin{myenv}begin{center}innerend{center}end{myenv}. Then@currenvir` will becenterwheninneris expanded.
– Martin Scharrer♦
May 20 '11 at 10:28
This does not seem to work on my end. It produces the "else" output both inside and outside amyenvenvironment. However, both@currenvirand@myenvnamedisplay the correct (and the same) output when placed inside the environment.
– Danny Hansen
13 mins ago
@DannyHansen Right: in some update during the last eight years, the LaTeX kernel changed@currenvirto not belongas it used to be. Fixed by adding a*.
– egreg
4 mins ago
add a comment |
LaTeX keeps the current environment in the macro @currenvir
makeatletter
newcommand{inner}{%
ifx@currenvir@myenvname
(inner)
else
begin{myenv}(inner)end{myenv}
fi}
newcommand*@myenvname{myenv}
makeatother
Another approach would be to define a global conditional that's set to true by myenv start code and to false by myenv end code. It depends mostly on what you are expecting from the myenv environment: can it appear nested inside itself?
answered May 20 '11 at 8:32
egregegreg
729k8819263235
2
@Nickoley: Note that this doesn't work any longer wheninneris used inside another environment inside themyenvenvironment, e.g. begin{myenv}begin{center}innerend{center}end{myenv}. Then@currenvir` will becenterwheninneris expanded.
– Martin Scharrer♦
May 20 '11 at 10:28
This does not seem to work on my end. It produces the "else" output both inside and outside amyenvenvironment. However, both@currenvirand@myenvnamedisplay the correct (and the same) output when placed inside the environment.
– Danny Hansen
13 mins ago
@DannyHansen Right: in some update during the last eight years, the LaTeX kernel changed@currenvirto not belongas it used to be. Fixed by adding a*.
– egreg
4 mins ago
add a comment |
LaTeX keeps the current environment in the macro @currenvir
makeatletter
newcommand{inner}{%
ifx@currenvir@myenvname
(inner)
else
begin{myenv}(inner)end{myenv}
fi}
newcommand*@myenvname{myenv}
makeatother
Another approach would be to define a global conditional that's set to true by myenv start code and to false by myenv end code. It depends mostly on what you are expecting from the myenv environment: can it appear nested inside itself?
answered May 20 '11 at 8:32
egregegreg
729k8819263235
LaTeX keeps the current environment in the macro @currenvir
makeatletter
newcommand{inner}{%
ifx@currenvir@myenvname
(inner)
else
begin{myenv}(inner)end{myenv}
fi}
newcommand*@myenvname{myenv}
makeatother
Another approach would be to define a global conditional that's set to true by myenv start code and to false by myenv end code. It depends mostly on what you are expecting from the myenv environment: can it appear nested inside itself?
answered May 20 '11 at 8:32
egregegreg
729k8819263235
edited 4 mins ago
answered May 20 '11 at 8:32
egregegreg
729k8819263235
answered May 20 '11 at 8:32
egregegreg
729k8819263235
answered May 20 '11 at 8:32
egregegreg
729k8819263235
729k8819263235
2
@Nickoley: Note that this doesn't work any longer wheninneris used inside another environment inside themyenvenvironment, e.g. begin{myenv}begin{center}innerend{center}end{myenv}. Then@currenvir` will becenterwheninneris expanded.
– Martin Scharrer♦
May 20 '11 at 10:28
This does not seem to work on my end. It produces the "else" output both inside and outside amyenvenvironment. However, both@currenvirand@myenvnamedisplay the correct (and the same) output when placed inside the environment.
– Danny Hansen
13 mins ago
@DannyHansen Right: in some update during the last eight years, the LaTeX kernel changed@currenvirto not belongas it used to be. Fixed by adding a*.
– egreg
4 mins ago
add a comment |
2
@Nickoley: Note that this doesn't work any longer wheninneris used inside another environment inside themyenvenvironment, e.g. begin{myenv}begin{center}innerend{center}end{myenv}. Then@currenvir` will becenterwheninneris expanded.
– Martin Scharrer♦
May 20 '11 at 10:28
This does not seem to work on my end. It produces the "else" output both inside and outside amyenvenvironment. However, both@currenvirand@myenvnamedisplay the correct (and the same) output when placed inside the environment.
– Danny Hansen
13 mins ago
@DannyHansen Right: in some update during the last eight years, the LaTeX kernel changed@currenvirto not belongas it used to be. Fixed by adding a*.
– egreg
4 mins ago
2
2
@Nickoley: Note that this doesn't work any longer when
inner is used inside another environment inside the myenv environment, e.g. begin{myenv}begin{center}innerend{center}end{myenv}. Then @currenvir` will be center when inner is expanded.– Martin Scharrer♦
May 20 '11 at 10:28
@Nickoley: Note that this doesn't work any longer when
inner is used inside another environment inside the myenv environment, e.g. begin{myenv}begin{center}innerend{center}end{myenv}. Then @currenvir` will be center when inner is expanded.– Martin Scharrer♦
May 20 '11 at 10:28
This does not seem to work on my end. It produces the "else" output both inside and outside a
myenv environment. However, both @currenvir and @myenvname display the correct (and the same) output when placed inside the environment.– Danny Hansen
13 mins ago
This does not seem to work on my end. It produces the "else" output both inside and outside a
myenv environment. However, both @currenvir and @myenvname display the correct (and the same) output when placed inside the environment.– Danny Hansen
13 mins ago
@DannyHansen Right: in some update during the last eight years, the LaTeX kernel changed
@currenvir to not be long as it used to be. Fixed by adding a *.– egreg
4 mins ago
@DannyHansen Right: in some update during the last eight years, the LaTeX kernel changed
@currenvir to not be long as it used to be. Fixed by adding a *.– egreg
4 mins ago
add a comment |
If you use pdftex, etex or xetex (I mean engine), you can define a fully expandable test:
makeatletter defIfEnvir #1%
% implicit #2 "what if true"
% implicit #3 "what if false"
{%
ifnum strcmp{@currenvir}{#1}=0
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
}
makeatother
Such a conditional is defined in the gmutils package: @ifenvir, but there it's protected for some reason.
edited May 20 '11 at 9:40
Martin Scharrer♦
203k47651825
answered May 20 '11 at 9:01
NatrorNatror
612
If you prefer the if… … else … fi form, just replace expandafter@first/secondoftwo with your stuff, but i'd suggest the arguments-form because it's robust to unbalanced if's.
– Natror
May 20 '11 at 9:06
Please indent your code with four spaces (or use the '101010' button to do this) so that it is properly highlighted. Please don't use HTML for code formatting. Thanks.
– Martin Scharrer♦
May 20 '11 at 9:39
the command isstrcmpin XeTeX andpdfstrcmpin pdfTeX. One can loadpdftexcmdsand usepdf@strcmpin all engines (including LuaTeX).
– egreg
May 20 '11 at 10:04
add a comment |
If you use pdftex, etex or xetex (I mean engine), you can define a fully expandable test:
makeatletter defIfEnvir #1%
% implicit #2 "what if true"
% implicit #3 "what if false"
{%
ifnum strcmp{@currenvir}{#1}=0
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
}
makeatother
Such a conditional is defined in the gmutils package: @ifenvir, but there it's protected for some reason.
edited May 20 '11 at 9:40
Martin Scharrer♦
203k47651825
answered May 20 '11 at 9:01
NatrorNatror
612
If you prefer the if… … else … fi form, just replace expandafter@first/secondoftwo with your stuff, but i'd suggest the arguments-form because it's robust to unbalanced if's.
– Natror
May 20 '11 at 9:06
Please indent your code with four spaces (or use the '101010' button to do this) so that it is properly highlighted. Please don't use HTML for code formatting. Thanks.
– Martin Scharrer♦
May 20 '11 at 9:39
the command isstrcmpin XeTeX andpdfstrcmpin pdfTeX. One can loadpdftexcmdsand usepdf@strcmpin all engines (including LuaTeX).
– egreg
May 20 '11 at 10:04
add a comment |
If you use pdftex, etex or xetex (I mean engine), you can define a fully expandable test:
makeatletter defIfEnvir #1%
% implicit #2 "what if true"
% implicit #3 "what if false"
{%
ifnum strcmp{@currenvir}{#1}=0
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
}
makeatother
Such a conditional is defined in the gmutils package: @ifenvir, but there it's protected for some reason.
edited May 20 '11 at 9:40
Martin Scharrer♦
203k47651825
answered May 20 '11 at 9:01
NatrorNatror
612
If you use pdftex, etex or xetex (I mean engine), you can define a fully expandable test:
makeatletter defIfEnvir #1%
% implicit #2 "what if true"
% implicit #3 "what if false"
{%
ifnum strcmp{@currenvir}{#1}=0
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
}
makeatother
Such a conditional is defined in the gmutils package: @ifenvir, but there it's protected for some reason.
edited May 20 '11 at 9:40
Martin Scharrer♦
203k47651825
answered May 20 '11 at 9:01
NatrorNatror
612
edited May 20 '11 at 9:40
Martin Scharrer♦
203k47651825
edited May 20 '11 at 9:40
Martin Scharrer♦
203k47651825
edited May 20 '11 at 9:40
Martin Scharrer♦
203k47651825
203k47651825
answered May 20 '11 at 9:01
NatrorNatror
612
answered May 20 '11 at 9:01
NatrorNatror
612
answered May 20 '11 at 9:01
NatrorNatror
612
612
If you prefer the if… … else … fi form, just replace expandafter@first/secondoftwo with your stuff, but i'd suggest the arguments-form because it's robust to unbalanced if's.
– Natror
May 20 '11 at 9:06
Please indent your code with four spaces (or use the '101010' button to do this) so that it is properly highlighted. Please don't use HTML for code formatting. Thanks.
– Martin Scharrer♦
May 20 '11 at 9:39
the command isstrcmpin XeTeX andpdfstrcmpin pdfTeX. One can loadpdftexcmdsand usepdf@strcmpin all engines (including LuaTeX).
– egreg
May 20 '11 at 10:04
add a comment |
If you prefer the if… … else … fi form, just replace expandafter@first/secondoftwo with your stuff, but i'd suggest the arguments-form because it's robust to unbalanced if's.
– Natror
May 20 '11 at 9:06
Please indent your code with four spaces (or use the '101010' button to do this) so that it is properly highlighted. Please don't use HTML for code formatting. Thanks.
– Martin Scharrer♦
May 20 '11 at 9:39
the command isstrcmpin XeTeX andpdfstrcmpin pdfTeX. One can loadpdftexcmdsand usepdf@strcmpin all engines (including LuaTeX).
– egreg
May 20 '11 at 10:04
If you prefer the if… … else … fi form, just replace expandafter@first/secondoftwo with your stuff, but i'd suggest the arguments-form because it's robust to unbalanced if's.
– Natror
May 20 '11 at 9:06
If you prefer the if… … else … fi form, just replace expandafter@first/secondoftwo with your stuff, but i'd suggest the arguments-form because it's robust to unbalanced if's.
– Natror
May 20 '11 at 9:06
Please indent your code with four spaces (or use the '101010' button to do this) so that it is properly highlighted. Please don't use HTML for code formatting. Thanks.
– Martin Scharrer♦
May 20 '11 at 9:39
Please indent your code with four spaces (or use the '101010' button to do this) so that it is properly highlighted. Please don't use HTML for code formatting. Thanks.
– Martin Scharrer♦
May 20 '11 at 9:39
the command is
strcmp in XeTeX and pdfstrcmp in pdfTeX. One can load pdftexcmds and use pdf@strcmp in all engines (including LuaTeX).– egreg
May 20 '11 at 10:04
the command is
strcmp in XeTeX and pdfstrcmp in pdfTeX. One can load pdftexcmds and use pdf@strcmp in all engines (including LuaTeX).– egreg
May 20 '11 at 10:04
add a 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.
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
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f18652%2fhow-can-i-check-if-the-current-code-is-inside-a-certain-environment%23new-answer', 'question_page');
}
);
Post as a guest
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
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
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
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Related Question: Detecting if inside a tikzpicture
– Peter Grill
Nov 7 '18 at 23:30