Define a and end pair directly rather than define an environment called ?











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While defining an environment <env> also defines the <env> and end<env> declarations, what are the circumstances where defining those declarations directly (without defining an environment) is preferable?



I see the following use where proof and endproof are defined separately in the informs3 document class file:



%% Use for proper proofs that end with extra space (regardless of the use

%% or non-use of qed (=the black box)

defproof#1{Trivlistitem[hspace*{1em}hskiplabelsep{it #1enskip }]ignorespaces}

defendproof{endTrivlistaddvspace{0pt}}


Is there any reason not to do newenvironment{proof}[1]{...}{...} instead?






macros environments







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  • 2




    I'm always amazed when journal styles reinvent the wheel, making it worse than the available models.
    – egreg
    2 days ago










  • @egreg Totally.
    – Fang Jing
    2 days ago










  • There are pieces of code which you can use both in LaTeX as begin{envname}..end{envname} and, e.g., in plain-TeX (, where you neither have LaTeX 2e's newenvironment-command nor have LaTeX 2e's environment-mechanism,) as envname..endenvname.
    – Ulrich Diez
    yesterday

















up vote
3
down vote

favorite












While defining an environment <env> also defines the <env> and end<env> declarations, what are the circumstances where defining those declarations directly (without defining an environment) is preferable?



I see the following use where proof and endproof are defined separately in the informs3 document class file:



%% Use for proper proofs that end with extra space (regardless of the use

%% or non-use of qed (=the black box)

defproof#1{Trivlistitem[hspace*{1em}hskiplabelsep{it #1enskip }]ignorespaces}

defendproof{endTrivlistaddvspace{0pt}}


Is there any reason not to do newenvironment{proof}[1]{...}{...} instead?






macros environments







share|improve this question


















  • 2




    I'm always amazed when journal styles reinvent the wheel, making it worse than the available models.
    – egreg
    2 days ago










  • @egreg Totally.
    – Fang Jing
    2 days ago










  • There are pieces of code which you can use both in LaTeX as begin{envname}..end{envname} and, e.g., in plain-TeX (, where you neither have LaTeX 2e's newenvironment-command nor have LaTeX 2e's environment-mechanism,) as envname..endenvname.
    – Ulrich Diez
    yesterday















up vote
3
down vote

favorite









up vote
3
down vote

favorite











While defining an environment <env> also defines the <env> and end<env> declarations, what are the circumstances where defining those declarations directly (without defining an environment) is preferable?



I see the following use where proof and endproof are defined separately in the informs3 document class file:



%% Use for proper proofs that end with extra space (regardless of the use

%% or non-use of qed (=the black box)

defproof#1{Trivlistitem[hspace*{1em}hskiplabelsep{it #1enskip }]ignorespaces}

defendproof{endTrivlistaddvspace{0pt}}


Is there any reason not to do newenvironment{proof}[1]{...}{...} instead?






macros environments







share|improve this question













While defining an environment <env> also defines the <env> and end<env> declarations, what are the circumstances where defining those declarations directly (without defining an environment) is preferable?



I see the following use where proof and endproof are defined separately in the informs3 document class file:



%% Use for proper proofs that end with extra space (regardless of the use

%% or non-use of qed (=the black box)

defproof#1{Trivlistitem[hspace*{1em}hskiplabelsep{it #1enskip }]ignorespaces}

defendproof{endTrivlistaddvspace{0pt}}


Is there any reason not to do newenvironment{proof}[1]{...}{...} instead?






macros environments




macros environments






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked 2 days ago









Fang Jing

5691612




5691612








  • 2




    I'm always amazed when journal styles reinvent the wheel, making it worse than the available models.
    – egreg
    2 days ago










  • @egreg Totally.
    – Fang Jing
    2 days ago










  • There are pieces of code which you can use both in LaTeX as begin{envname}..end{envname} and, e.g., in plain-TeX (, where you neither have LaTeX 2e's newenvironment-command nor have LaTeX 2e's environment-mechanism,) as envname..endenvname.
    – Ulrich Diez
    yesterday
















  • 2




    I'm always amazed when journal styles reinvent the wheel, making it worse than the available models.
    – egreg
    2 days ago










  • @egreg Totally.
    – Fang Jing
    2 days ago










  • There are pieces of code which you can use both in LaTeX as begin{envname}..end{envname} and, e.g., in plain-TeX (, where you neither have LaTeX 2e's newenvironment-command nor have LaTeX 2e's environment-mechanism,) as envname..endenvname.
    – Ulrich Diez
    yesterday










2




2




I'm always amazed when journal styles reinvent the wheel, making it worse than the available models.
– egreg
2 days ago




I'm always amazed when journal styles reinvent the wheel, making it worse than the available models.
– egreg
2 days ago












@egreg Totally.
– Fang Jing
2 days ago




@egreg Totally.
– Fang Jing
2 days ago












There are pieces of code which you can use both in LaTeX as begin{envname}..end{envname} and, e.g., in plain-TeX (, where you neither have LaTeX 2e's newenvironment-command nor have LaTeX 2e's environment-mechanism,) as envname..endenvname.
– Ulrich Diez
yesterday






There are pieces of code which you can use both in LaTeX as begin{envname}..end{envname} and, e.g., in plain-TeX (, where you neither have LaTeX 2e's newenvironment-command nor have LaTeX 2e's environment-mechanism,) as envname..endenvname.
– Ulrich Diez
yesterday












1 Answer
1






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votes

















up vote
4
down vote



accepted










newenvironment other than checking that the name is "safe" to define does nothing different to the def forms that you show (apart from using longdef unless the * form is used).



Especially in older code you will often see the lower level form, going back to when it could take several minutes to load a style file and not doing the checks in often used but unchanging definitions was a useful saving.






share|improve this answer























  • I realize I can actually do begin{proof}{Proof.} It's obvious. end{proof}.
    – Fang Jing
    2 days ago













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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes








up vote
4
down vote



accepted










newenvironment other than checking that the name is "safe" to define does nothing different to the def forms that you show (apart from using longdef unless the * form is used).



Especially in older code you will often see the lower level form, going back to when it could take several minutes to load a style file and not doing the checks in often used but unchanging definitions was a useful saving.






share|improve this answer























  • I realize I can actually do begin{proof}{Proof.} It's obvious. end{proof}.
    – Fang Jing
    2 days ago

















up vote
4
down vote



accepted










newenvironment other than checking that the name is "safe" to define does nothing different to the def forms that you show (apart from using longdef unless the * form is used).



Especially in older code you will often see the lower level form, going back to when it could take several minutes to load a style file and not doing the checks in often used but unchanging definitions was a useful saving.






share|improve this answer























  • I realize I can actually do begin{proof}{Proof.} It's obvious. end{proof}.
    – Fang Jing
    2 days ago















up vote
4
down vote



accepted







up vote
4
down vote



accepted






newenvironment other than checking that the name is "safe" to define does nothing different to the def forms that you show (apart from using longdef unless the * form is used).



Especially in older code you will often see the lower level form, going back to when it could take several minutes to load a style file and not doing the checks in often used but unchanging definitions was a useful saving.






share|improve this answer














newenvironment other than checking that the name is "safe" to define does nothing different to the def forms that you show (apart from using longdef unless the * form is used).



Especially in older code you will often see the lower level form, going back to when it could take several minutes to load a style file and not doing the checks in often used but unchanging definitions was a useful saving.







share|improve this answer














share|improve this answer



share|improve this answer








edited 2 days ago









Phelype Oleinik

20.2k54277




20.2k54277










answered 2 days ago









David Carlisle

477k3811061840




477k3811061840












  • I realize I can actually do begin{proof}{Proof.} It's obvious. end{proof}.
    – Fang Jing
    2 days ago




















  • I realize I can actually do begin{proof}{Proof.} It's obvious. end{proof}.
    – Fang Jing
    2 days ago


















I realize I can actually do begin{proof}{Proof.} It's obvious. end{proof}.
– Fang Jing
2 days ago






I realize I can actually do begin{proof}{Proof.} It's obvious. end{proof}.
– Fang Jing
2 days ago




















 

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