Syntax for `NewDocumentCommand`












5














The xparse documentation gives examples of names of NewDocumentCommands enclosed in braces, and without braces, as demonstrated in the two commands below. Is there any difference in functionality whatsoever between the two? I never use braces and better be safe than sorry.



documentclass{article}
%=======================
usepackage{xparse}
%-----------------------
ExplSyntaxOn
NewDocumentCommandmyExp{m}{#1}
NewDocumentCommand{myExpAlt}{m}{#1}
ExplSyntaxOff
%-----------------------
begin{document}
myExp{101}

myExpAlt{123}
end{document}









share|improve this question


















  • 3




    In your example, there is no need for ExplSyntaxOn...ExplSyntaxOff.
    – Werner
    Dec 10 '18 at 7:34










  • Agreed, they are part of my MWE template as is usepackage[...]{expl3} and I failed to remove them.
    – Reinhard Neuwirth
    Dec 10 '18 at 9:44
















5














The xparse documentation gives examples of names of NewDocumentCommands enclosed in braces, and without braces, as demonstrated in the two commands below. Is there any difference in functionality whatsoever between the two? I never use braces and better be safe than sorry.



documentclass{article}
%=======================
usepackage{xparse}
%-----------------------
ExplSyntaxOn
NewDocumentCommandmyExp{m}{#1}
NewDocumentCommand{myExpAlt}{m}{#1}
ExplSyntaxOff
%-----------------------
begin{document}
myExp{101}

myExpAlt{123}
end{document}









share|improve this question


















  • 3




    In your example, there is no need for ExplSyntaxOn...ExplSyntaxOff.
    – Werner
    Dec 10 '18 at 7:34










  • Agreed, they are part of my MWE template as is usepackage[...]{expl3} and I failed to remove them.
    – Reinhard Neuwirth
    Dec 10 '18 at 9:44














5












5








5







The xparse documentation gives examples of names of NewDocumentCommands enclosed in braces, and without braces, as demonstrated in the two commands below. Is there any difference in functionality whatsoever between the two? I never use braces and better be safe than sorry.



documentclass{article}
%=======================
usepackage{xparse}
%-----------------------
ExplSyntaxOn
NewDocumentCommandmyExp{m}{#1}
NewDocumentCommand{myExpAlt}{m}{#1}
ExplSyntaxOff
%-----------------------
begin{document}
myExp{101}

myExpAlt{123}
end{document}









share|improve this question













The xparse documentation gives examples of names of NewDocumentCommands enclosed in braces, and without braces, as demonstrated in the two commands below. Is there any difference in functionality whatsoever between the two? I never use braces and better be safe than sorry.



documentclass{article}
%=======================
usepackage{xparse}
%-----------------------
ExplSyntaxOn
NewDocumentCommandmyExp{m}{#1}
NewDocumentCommand{myExpAlt}{m}{#1}
ExplSyntaxOff
%-----------------------
begin{document}
myExp{101}

myExpAlt{123}
end{document}






xparse






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Dec 10 '18 at 7:05









Reinhard Neuwirth

1,55111322




1,55111322








  • 3




    In your example, there is no need for ExplSyntaxOn...ExplSyntaxOff.
    – Werner
    Dec 10 '18 at 7:34










  • Agreed, they are part of my MWE template as is usepackage[...]{expl3} and I failed to remove them.
    – Reinhard Neuwirth
    Dec 10 '18 at 9:44














  • 3




    In your example, there is no need for ExplSyntaxOn...ExplSyntaxOff.
    – Werner
    Dec 10 '18 at 7:34










  • Agreed, they are part of my MWE template as is usepackage[...]{expl3} and I failed to remove them.
    – Reinhard Neuwirth
    Dec 10 '18 at 9:44








3




3




In your example, there is no need for ExplSyntaxOn...ExplSyntaxOff.
– Werner
Dec 10 '18 at 7:34




In your example, there is no need for ExplSyntaxOn...ExplSyntaxOff.
– Werner
Dec 10 '18 at 7:34












Agreed, they are part of my MWE template as is usepackage[...]{expl3} and I failed to remove them.
– Reinhard Neuwirth
Dec 10 '18 at 9:44




Agreed, they are part of my MWE template as is usepackage[...]{expl3} and I failed to remove them.
– Reinhard Neuwirth
Dec 10 '18 at 9:44










1 Answer
1






active

oldest

votes


















5














There is no difference, similar to the notation used with newcommand and friends, as long as you pass it a control sequence. Technically you're passing an argument to newcommand, which is then set using def internally, so you should use {<csname>}. However, if you don't use braces, the first token is grabbed.






share|improve this answer





















  • Reassuring that there is no harm in not using braces, but formal correctness would dictate to use {<csname>}.
    – Reinhard Neuwirth
    Dec 10 '18 at 8:03











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
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f464075%2fsyntax-for-newdocumentcommand%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









5














There is no difference, similar to the notation used with newcommand and friends, as long as you pass it a control sequence. Technically you're passing an argument to newcommand, which is then set using def internally, so you should use {<csname>}. However, if you don't use braces, the first token is grabbed.






share|improve this answer





















  • Reassuring that there is no harm in not using braces, but formal correctness would dictate to use {<csname>}.
    – Reinhard Neuwirth
    Dec 10 '18 at 8:03
















5














There is no difference, similar to the notation used with newcommand and friends, as long as you pass it a control sequence. Technically you're passing an argument to newcommand, which is then set using def internally, so you should use {<csname>}. However, if you don't use braces, the first token is grabbed.






share|improve this answer





















  • Reassuring that there is no harm in not using braces, but formal correctness would dictate to use {<csname>}.
    – Reinhard Neuwirth
    Dec 10 '18 at 8:03














5












5








5






There is no difference, similar to the notation used with newcommand and friends, as long as you pass it a control sequence. Technically you're passing an argument to newcommand, which is then set using def internally, so you should use {<csname>}. However, if you don't use braces, the first token is grabbed.






share|improve this answer












There is no difference, similar to the notation used with newcommand and friends, as long as you pass it a control sequence. Technically you're passing an argument to newcommand, which is then set using def internally, so you should use {<csname>}. However, if you don't use braces, the first token is grabbed.







share|improve this answer












share|improve this answer



share|improve this answer










answered Dec 10 '18 at 7:34









Werner

437k649591650




437k649591650












  • Reassuring that there is no harm in not using braces, but formal correctness would dictate to use {<csname>}.
    – Reinhard Neuwirth
    Dec 10 '18 at 8:03


















  • Reassuring that there is no harm in not using braces, but formal correctness would dictate to use {<csname>}.
    – Reinhard Neuwirth
    Dec 10 '18 at 8:03
















Reassuring that there is no harm in not using braces, but formal correctness would dictate to use {<csname>}.
– Reinhard Neuwirth
Dec 10 '18 at 8:03




Reassuring that there is no harm in not using braces, but formal correctness would dictate to use {<csname>}.
– Reinhard Neuwirth
Dec 10 '18 at 8:03


















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.





Some of your past answers have not been well-received, and you're in danger of being blocked from answering.


Please pay close attention to the following guidance:


  • 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














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2ftex.stackexchange.com%2fquestions%2f464075%2fsyntax-for-newdocumentcommand%23new-answer', 'question_page');
}
);

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







Popular posts from this blog

Plaza Victoria

Puebla de Zaragoza

Musa