Mdthbs

If a vampire drinks blood of a sick human, does the vampire get infected?

Purchased new computer from DELL with pre-installed Ubuntu. Won't boot. Should assume its an error from DELL?

What does the ISO setting for mechanical 35mm film cameras actually do?

Launch capabilities of GSLV Mark III

Our group keeps dying during the Lost Mine of Phandelver campaign. What are we doing wrong?

What filaments allow air to pass but not water vapor?

What are the function of EM and EN spaces?

Can you take actions after being healed at 0hp?

Definitional equality of two propositions about propositional equality

Will a research paper be retracted if the code (which was made publically available ) is shown have a flaw in the logic?

Why should I "believe in" weak solutions to PDEs?

Getting Lost in the Caves of Chaos

If I build a custom theme, will it update?

Write The Shortest Program To Check If A Binary Tree Is Balanced

Did Captain America make out with his niece?

A Checkmate of Dubious Legality

How easy is it to get a gun illegally in the United States?

What date did Henry Morgan capture his most famous flagship, the "Satisfaction"?

Why is the Vasa Museum in Stockholm so Popular?

Which genus do I use for neutral expressions in German?

What's going on with an item that starts with an hbox?

Nested Unlocked Packages requires Installation of Base Packages?

Can a Hogwarts student refuse the Sorting Hat's decision?

List: Behavioural characteristics of key Ito processes used in finance

What's going on with an item that starts with an hbox?

Differentiating between hbox and mboxIssue with section text assuming same color as body textEnumerate and itemize undefined + captions not workingMissing item problem with enumerateEnumerating nested item with skipsItem with more than one value in enumerate environmentRefer to the item that follows a certain label/referenceNo new line for theorem in enumerateItem numbers with listingsHow to link to a Theorem that contains only an enumerated listEnumerate with no top-level itemvertically align top line of item contents with item number

.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ margin-bottom:0;
}

6

I've been using LaTeX for years and never saw this before: if an item (in enumerate) starts with an hbox, then the hbox is placed before the label!

documentclass[12pt]{article}



defBlank#1{relax{hbox to 1in{hrulefilltextsl{#1}hrulefill}}}



begin{document}



section{Example}



Here's a list:

begin{enumerate}

item

Blank{test}, plus stuff after.



item{}

Blank{test}, plus stuff after.



itemrelax

Blank{test}, plus stuff after.



item{ }

Blank{test}, plus stuff after.



item{ }relax

hbox to 1in{hrulefilltextsl{test}hrulefill}, plus stuff after.



item{ X }

Blank{test}, plus stuff after.



% etc.



end{enumerate}



end{document}

The result is unexpected, except for the last item.

Blanks, relax, nothing stops the hbox being moved back except actual text.

What am I doing wrong?

enumerate latex-base

share|improve this question

edited 6 hours ago

Mensch

47.1k1010 gold badges5353 silver badges178178 bronze badges

asked 8 hours ago

John Tang BoylandJohn Tang Boyland

13122 bronze badges

New contributor

John Tang Boyland is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  there is a reason hbox is not a latex command, and mbox is......
  
  – David Carlisle
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  9
  

  
  
  
  
  
  

  
  
  The hbox behaviour is explained in several answers on site eg tex.stackexchange.com/questions/118164/…
  
  – David Carlisle
  8 hours ago
  
  
  

  
  
  
  

add a comment | 

6

I've been using LaTeX for years and never saw this before: if an item (in enumerate) starts with an hbox, then the hbox is placed before the label!

documentclass[12pt]{article}



defBlank#1{relax{hbox to 1in{hrulefilltextsl{#1}hrulefill}}}



begin{document}



section{Example}



Here's a list:

begin{enumerate}

item

Blank{test}, plus stuff after.



item{}

Blank{test}, plus stuff after.



itemrelax

Blank{test}, plus stuff after.



item{ }

Blank{test}, plus stuff after.



item{ }relax

hbox to 1in{hrulefilltextsl{test}hrulefill}, plus stuff after.



item{ X }

Blank{test}, plus stuff after.



% etc.



end{enumerate}



end{document}

The result is unexpected, except for the last item.

Blanks, relax, nothing stops the hbox being moved back except actual text.

What am I doing wrong?

enumerate latex-base

share|improve this question

edited 6 hours ago

Mensch

47.1k1010 gold badges5353 silver badges178178 bronze badges

asked 8 hours ago

John Tang BoylandJohn Tang Boyland

13122 bronze badges

New contributor

John Tang Boyland is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

• 
  
  
  

  
  2
  

  
  
  
  
  
  

  
  
  there is a reason hbox is not a latex command, and mbox is......
  
  – David Carlisle
  8 hours ago
  

  
  
  
  


• 
  
  
  

  
  9
  

  
  
  
  
  
  

  
  
  The hbox behaviour is explained in several answers on site eg tex.stackexchange.com/questions/118164/…
  
  – David Carlisle
  8 hours ago
  
  
  

  
  
  
  

add a comment | 

I've been using LaTeX for years and never saw this before: if an item (in enumerate) starts with an hbox, then the hbox is placed before the label!

documentclass[12pt]{article}



defBlank#1{relax{hbox to 1in{hrulefilltextsl{#1}hrulefill}}}



begin{document}



section{Example}



Here's a list:

begin{enumerate}

item

Blank{test}, plus stuff after.



item{}

Blank{test}, plus stuff after.



itemrelax

Blank{test}, plus stuff after.



item{ }

Blank{test}, plus stuff after.



item{ }relax

hbox to 1in{hrulefilltextsl{test}hrulefill}, plus stuff after.



item{ X }

Blank{test}, plus stuff after.



% etc.



end{enumerate}



end{document}

The result is unexpected, except for the last item.

Blanks, relax, nothing stops the hbox being moved back except actual text.

What am I doing wrong?

enumerate latex-base

share|improve this question

edited 6 hours ago

Mensch

47.1k1010 gold badges5353 silver badges178178 bronze badges

asked 8 hours ago

John Tang BoylandJohn Tang Boyland

13122 bronze badges

New contributor

John Tang Boyland is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

documentclass[12pt]{article}



defBlank#1{relax{hbox to 1in{hrulefilltextsl{#1}hrulefill}}}



begin{document}



section{Example}



Here's a list:

begin{enumerate}

item

Blank{test}, plus stuff after.



item{}

Blank{test}, plus stuff after.



itemrelax

Blank{test}, plus stuff after.



item{ }

Blank{test}, plus stuff after.



item{ }relax

hbox to 1in{hrulefilltextsl{test}hrulefill}, plus stuff after.



item{ X }

Blank{test}, plus stuff after.



% etc.



end{enumerate}



end{document}

share|improve this question

edited 6 hours ago

Mensch

47.1k1010 gold badges5353 silver badges178178 bronze badges

asked 8 hours ago

John Tang BoylandJohn Tang Boyland

13122 bronze badges

New contributor

John Tang Boyland is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share|improve this question

edited 6 hours ago

Mensch

47.1k1010 gold badges5353 silver badges178178 bronze badges

asked 8 hours ago

John Tang BoylandJohn Tang Boyland

13122 bronze badges

New contributor

John Tang Boyland is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

edited 6 hours ago

Mensch

47.1k1010 gold badges5353 silver badges178178 bronze badges

edited 6 hours ago

Mensch

47.1k1010 gold badges5353 silver badges178178 bronze badges

asked 8 hours ago

John Tang BoylandJohn Tang Boyland

13122 bronze badges

New contributor

John Tang Boyland is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

asked 8 hours ago

John Tang BoylandJohn Tang Boyland

13122 bronze badges

2 Answers
2

active

oldest

votes

7

As explained in

Differentiating between hbox and mbox

hbox is a TeX primitve not a LaTeX command and does not react well with most LaTeX constructs, notably it is not centered by a center environment and has various perhaps unexpected behaviours at the start of a paragraph.

The specific interaction with lists is not mentioned there though so answering here rather than suggesting that is a duplicate.

LaTeX implements list item labels by typesetting the label into a box register and then inserting the label at the start of the following paragraph. hbox does not start a paragraph, this primitive box construct inserts the hbox directly into the surrounding vertical list, so the saved item label is not inserted until some following text does start the paragraph. So the lable comes after the box.

So you could fix this by using leavevmodehbox instead of simply hbox (that is the main part of the definition of mbox) or as you are using the hbox to syntax you could use the standard latex equivalent namely

makebox[1cm]{...}

which will automatically apply leavevmode as well as constructing the 1cm wide box.

share|improve this answer

answered 5 hours ago

David CarlisleDavid Carlisle

518k4444 gold badges11731173 silver badges19431943 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  didn't see befor posting . Sorry ;-)
  
  – touhami
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @touhami no harm done:-)
  
  – David Carlisle
  5 hours ago
  

  
  
  
  

add a comment | 

2

What happen is that the label is placed with everypar command.

everypar content is inserted at the beging of every paragraph,
when TeX enter to horizental mode (after indentation).

The hbox primitive doesn't start a new paragraph i.e. it's add to the vertical list, so the label will wait for additional stuff that start a new paragraph
(comma , in the OP).

See this question

ECM

documentclass{article}



defmyitem{setbox0=hbox{textbulletquad}everypar{unhbox0everypar{}}}



begin{document}

myitem foo bar.



myitem you see.



myitem mbox{OK. here} every thing is good.



myitem hbox {No!} but not here.

end{document}

ECM

documentclass{article}



begin{document}

begingroup

everypar{textbf{Foo} }

yes



mbox{yes} again



hbox{what's} now

endgroup

end{document}

share|improve this answer

answered 5 hours ago

touhamitouhami

17.5k22 gold badges1313 silver badges4646 bronze badges

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
});


}
});

John Tang Boyland is a new contributor. Be nice, and check out our Code of Conduct.

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%2f503073%2fwhats-going-on-with-an-item-that-starts-with-an-hbox%23new-answer', 'question_page');
}
);

Post as a guest

Name

Email

Required, but never shown

7

As explained in

Differentiating between hbox and mbox

hbox is a TeX primitve not a LaTeX command and does not react well with most LaTeX constructs, notably it is not centered by a center environment and has various perhaps unexpected behaviours at the start of a paragraph.

The specific interaction with lists is not mentioned there though so answering here rather than suggesting that is a duplicate.

LaTeX implements list item labels by typesetting the label into a box register and then inserting the label at the start of the following paragraph. hbox does not start a paragraph, this primitive box construct inserts the hbox directly into the surrounding vertical list, so the saved item label is not inserted until some following text does start the paragraph. So the lable comes after the box.

So you could fix this by using leavevmodehbox instead of simply hbox (that is the main part of the definition of mbox) or as you are using the hbox to syntax you could use the standard latex equivalent namely

makebox[1cm]{...}

which will automatically apply leavevmode as well as constructing the 1cm wide box.

share|improve this answer

answered 5 hours ago

David CarlisleDavid Carlisle

518k4444 gold badges11731173 silver badges19431943 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  didn't see befor posting . Sorry ;-)
  
  – touhami
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @touhami no harm done:-)
  
  – David Carlisle
  5 hours ago
  

  
  
  
  

add a comment | 

7

As explained in

Differentiating between hbox and mbox

hbox is a TeX primitve not a LaTeX command and does not react well with most LaTeX constructs, notably it is not centered by a center environment and has various perhaps unexpected behaviours at the start of a paragraph.

The specific interaction with lists is not mentioned there though so answering here rather than suggesting that is a duplicate.

LaTeX implements list item labels by typesetting the label into a box register and then inserting the label at the start of the following paragraph. hbox does not start a paragraph, this primitive box construct inserts the hbox directly into the surrounding vertical list, so the saved item label is not inserted until some following text does start the paragraph. So the lable comes after the box.

So you could fix this by using leavevmodehbox instead of simply hbox (that is the main part of the definition of mbox) or as you are using the hbox to syntax you could use the standard latex equivalent namely

makebox[1cm]{...}

which will automatically apply leavevmode as well as constructing the 1cm wide box.

share|improve this answer

answered 5 hours ago

David CarlisleDavid Carlisle

518k4444 gold badges11731173 silver badges19431943 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  didn't see befor posting . Sorry ;-)
  
  – touhami
  5 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @touhami no harm done:-)
  
  – David Carlisle
  5 hours ago
  

  
  
  
  

add a comment | 

As explained in

Differentiating between hbox and mbox

hbox is a TeX primitve not a LaTeX command and does not react well with most LaTeX constructs, notably it is not centered by a center environment and has various perhaps unexpected behaviours at the start of a paragraph.

The specific interaction with lists is not mentioned there though so answering here rather than suggesting that is a duplicate.

LaTeX implements list item labels by typesetting the label into a box register and then inserting the label at the start of the following paragraph. hbox does not start a paragraph, this primitive box construct inserts the hbox directly into the surrounding vertical list, so the saved item label is not inserted until some following text does start the paragraph. So the lable comes after the box.

So you could fix this by using leavevmodehbox instead of simply hbox (that is the main part of the definition of mbox) or as you are using the hbox to syntax you could use the standard latex equivalent namely

makebox[1cm]{...}

which will automatically apply leavevmode as well as constructing the 1cm wide box.

share|improve this answer

answered 5 hours ago

David CarlisleDavid Carlisle

518k4444 gold badges11731173 silver badges19431943 bronze badges

makebox[1cm]{...}

share|improve this answer

answered 5 hours ago

David CarlisleDavid Carlisle

518k4444 gold badges11731173 silver badges19431943 bronze badges

answered 5 hours ago

David CarlisleDavid Carlisle

518k4444 gold badges11731173 silver badges19431943 bronze badges

answered 5 hours ago

David CarlisleDavid Carlisle

518k4444 gold badges11731173 silver badges19431943 bronze badges

2

What happen is that the label is placed with everypar command.

everypar content is inserted at the beging of every paragraph,
when TeX enter to horizental mode (after indentation).

The hbox primitive doesn't start a new paragraph i.e. it's add to the vertical list, so the label will wait for additional stuff that start a new paragraph
(comma , in the OP).

See this question

ECM

documentclass{article}



defmyitem{setbox0=hbox{textbulletquad}everypar{unhbox0everypar{}}}



begin{document}

myitem foo bar.



myitem you see.



myitem mbox{OK. here} every thing is good.



myitem hbox {No!} but not here.

end{document}

ECM

documentclass{article}



begin{document}

begingroup

everypar{textbf{Foo} }

yes



mbox{yes} again



hbox{what's} now

endgroup

end{document}

share|improve this answer

answered 5 hours ago

touhamitouhami

17.5k22 gold badges1313 silver badges4646 bronze badges

add a comment | 

2

What happen is that the label is placed with everypar command.

everypar content is inserted at the beging of every paragraph,
when TeX enter to horizental mode (after indentation).

The hbox primitive doesn't start a new paragraph i.e. it's add to the vertical list, so the label will wait for additional stuff that start a new paragraph
(comma , in the OP).

See this question

ECM

documentclass{article}



defmyitem{setbox0=hbox{textbulletquad}everypar{unhbox0everypar{}}}



begin{document}

myitem foo bar.



myitem you see.



myitem mbox{OK. here} every thing is good.



myitem hbox {No!} but not here.

end{document}

ECM

documentclass{article}



begin{document}

begingroup

everypar{textbf{Foo} }

yes



mbox{yes} again



hbox{what's} now

endgroup

end{document}

share|improve this answer

answered 5 hours ago

touhamitouhami

17.5k22 gold badges1313 silver badges4646 bronze badges

add a comment | 

What happen is that the label is placed with everypar command.

everypar content is inserted at the beging of every paragraph,
when TeX enter to horizental mode (after indentation).

The hbox primitive doesn't start a new paragraph i.e. it's add to the vertical list, so the label will wait for additional stuff that start a new paragraph
(comma , in the OP).

See this question

ECM

documentclass{article}



defmyitem{setbox0=hbox{textbulletquad}everypar{unhbox0everypar{}}}



begin{document}

myitem foo bar.



myitem you see.



myitem mbox{OK. here} every thing is good.



myitem hbox {No!} but not here.

end{document}

ECM

documentclass{article}



begin{document}

begingroup

everypar{textbf{Foo} }

yes



mbox{yes} again



hbox{what's} now

endgroup

end{document}

share|improve this answer

answered 5 hours ago

touhamitouhami

17.5k22 gold badges1313 silver badges4646 bronze badges

documentclass{article}



defmyitem{setbox0=hbox{textbulletquad}everypar{unhbox0everypar{}}}



begin{document}

myitem foo bar.



myitem you see.



myitem mbox{OK. here} every thing is good.



myitem hbox {No!} but not here.

end{document}

documentclass{article}



begin{document}

begingroup

everypar{textbf{Foo} }

yes



mbox{yes} again



hbox{what's} now

endgroup

end{document}

share|improve this answer

answered 5 hours ago

touhamitouhami

17.5k22 gold badges1313 silver badges4646 bronze badges

answered 5 hours ago

touhamitouhami

17.5k22 gold badges1313 silver badges4646 bronze badges

answered 5 hours ago

touhamitouhami

17.5k22 gold badges1313 silver badges4646 bronze badges