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Removing label from a string

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2

0

Is there a way to create a command that removes, if present, a label from some text. It should work like this:

documentclass{article}

newcommand{removelabel}[1]{} % some code

begin{document}

removelabel{label{some_label} This label should be removed} % output: 'This label should be removed'

removelabel{This string is already label-less} % output: 'This string is already label-less

end{document}

labels

share|improve this question

asked Feb 17 at 0:46

noibenoibe

512113

bumped to the homepage by Community♦ 11 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  May I ask why you need such a command? What should a leading label do?
  
  – Kurt
  Feb 17 at 2:06
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  see this for the full story. I'm trying to fix the bug shown in the code posted after 'EDIT: MWE showing the problem'. I'd call such a function on line 52, with BODY as its argument.
  
  – noibe
  Feb 17 at 2:45
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  is a lualatex solution acceptable?
  
  – JPi
  Feb 17 at 3:27
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @JPi not really
  
  – noibe
  Feb 17 at 11:00
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Then I can't tell you. 😣
  
  – JPi
  Feb 17 at 12:24
  

  
  
  
  

 | 
show 5 more comments

2

0

Is there a way to create a command that removes, if present, a label from some text. It should work like this:

documentclass{article}

newcommand{removelabel}[1]{} % some code

begin{document}

removelabel{label{some_label} This label should be removed} % output: 'This label should be removed'

removelabel{This string is already label-less} % output: 'This string is already label-less

end{document}

labels

share|improve this question

asked Feb 17 at 0:46

noibenoibe

512113

bumped to the homepage by Community♦ 11 mins ago

This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  May I ask why you need such a command? What should a leading label do?
  
  – Kurt
  Feb 17 at 2:06
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  see this for the full story. I'm trying to fix the bug shown in the code posted after 'EDIT: MWE showing the problem'. I'd call such a function on line 52, with BODY as its argument.
  
  – noibe
  Feb 17 at 2:45
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  is a lualatex solution acceptable?
  
  – JPi
  Feb 17 at 3:27
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @JPi not really
  
  – noibe
  Feb 17 at 11:00
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Then I can't tell you. 😣
  
  – JPi
  Feb 17 at 12:24
  

  
  
  
  

 | 
show 5 more comments

Is there a way to create a command that removes, if present, a label from some text. It should work like this:

documentclass{article}

newcommand{removelabel}[1]{} % some code

begin{document}

removelabel{label{some_label} This label should be removed} % output: 'This label should be removed'

removelabel{This string is already label-less} % output: 'This string is already label-less

end{document}

labels

share|improve this question

asked Feb 17 at 0:46

noibenoibe

512113

documentclass{article}

newcommand{removelabel}[1]{} % some code

begin{document}

removelabel{label{some_label} This label should be removed} % output: 'This label should be removed'

removelabel{This string is already label-less} % output: 'This string is already label-less

end{document}

share|improve this question

asked Feb 17 at 0:46

noibenoibe

512113

share|improve this question

asked Feb 17 at 0:46

noibenoibe

512113

asked Feb 17 at 0:46

noibenoibe

512113

asked Feb 17 at 0:46

noibenoibe

512113

1 Answer
1

active

oldest

votes

0

This is something I suppose could work for you:

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabel#1letlabeloldlabel} % some code

begin{document}

begin{minipage}{textwidth}

removelabel{captionof{figure}{label{some_label} This label should be removed}} % output: 'This label should be removed'

end{minipage}

removelabel{This string is already label-less} % output: 'This string is already label-less



Figure~ref{some_label}

end{document}

In the output the label is not defined and returns questionmarks

Edit:

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabelxdefremovedlabel{#1}letlabeloldlabel} % some code

begin{document}



removelabel{label{some_label} This label should be removed} 

removedlabel



removelabel{This string is already label-less} % output: 'This string is already label-less



removedlabel





%Figure~ref{some_label}

end{document}

Now removedlabel gives the string without the label... But I am not sure what you want to do... May be you should be more clear on what you expect from the command.

share|improve this answer

edited Feb 18 at 0:46

answered Feb 17 at 15:34

koleygrkoleygr

13k11038

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This code isn't actually removing the label, it just briefly changes the behaviour of the label command to null. If I were to print the argument of removelabel as if it was a string, I'd still see label{some_label}.
  
  – noibe
  Feb 17 at 22:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  if you expand the argument of removelabel... it will not be there... If you want an argument of a command to be something and without even expanding it to disappear ane part of it... I am afraid it can't be done...
  
  – koleygr
  Feb 18 at 0:37
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I suggest defmyEmptyLabel#1{@bsphack@esphack} .
  
  – Ulrich Diez
  Feb 18 at 21:55
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UlrichDiez.... you may write an answer because I don't really know what is these commands...
  
  – koleygr
  Feb 19 at 10:56
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @koleygr label shall not deliver visible things into the output-file/pdf-file. @bsphack/@esphack ensures that a space-token behind the argument of a label-command does not produce undesired visible whitespace in case there already was a space before the label-command... Many of these commands are explained in source2e.pdf
  
  – Ulrich Diez
  Feb 19 at 13:44
  
  
  

  
  
  
  

 | 
show 1 more comment

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0

This is something I suppose could work for you:

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabel#1letlabeloldlabel} % some code

begin{document}

begin{minipage}{textwidth}

removelabel{captionof{figure}{label{some_label} This label should be removed}} % output: 'This label should be removed'

end{minipage}

removelabel{This string is already label-less} % output: 'This string is already label-less



Figure~ref{some_label}

end{document}

In the output the label is not defined and returns questionmarks

Edit:

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabelxdefremovedlabel{#1}letlabeloldlabel} % some code

begin{document}



removelabel{label{some_label} This label should be removed} 

removedlabel



removelabel{This string is already label-less} % output: 'This string is already label-less



removedlabel





%Figure~ref{some_label}

end{document}

Now removedlabel gives the string without the label... But I am not sure what you want to do... May be you should be more clear on what you expect from the command.

share|improve this answer

edited Feb 18 at 0:46

answered Feb 17 at 15:34

koleygrkoleygr

13k11038

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This code isn't actually removing the label, it just briefly changes the behaviour of the label command to null. If I were to print the argument of removelabel as if it was a string, I'd still see label{some_label}.
  
  – noibe
  Feb 17 at 22:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  if you expand the argument of removelabel... it will not be there... If you want an argument of a command to be something and without even expanding it to disappear ane part of it... I am afraid it can't be done...
  
  – koleygr
  Feb 18 at 0:37
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I suggest defmyEmptyLabel#1{@bsphack@esphack} .
  
  – Ulrich Diez
  Feb 18 at 21:55
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UlrichDiez.... you may write an answer because I don't really know what is these commands...
  
  – koleygr
  Feb 19 at 10:56
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @koleygr label shall not deliver visible things into the output-file/pdf-file. @bsphack/@esphack ensures that a space-token behind the argument of a label-command does not produce undesired visible whitespace in case there already was a space before the label-command... Many of these commands are explained in source2e.pdf
  
  – Ulrich Diez
  Feb 19 at 13:44
  
  
  

  
  
  
  

 | 
show 1 more comment

0

This is something I suppose could work for you:

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabel#1letlabeloldlabel} % some code

begin{document}

begin{minipage}{textwidth}

removelabel{captionof{figure}{label{some_label} This label should be removed}} % output: 'This label should be removed'

end{minipage}

removelabel{This string is already label-less} % output: 'This string is already label-less



Figure~ref{some_label}

end{document}

In the output the label is not defined and returns questionmarks

Edit:

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabelxdefremovedlabel{#1}letlabeloldlabel} % some code

begin{document}



removelabel{label{some_label} This label should be removed} 

removedlabel



removelabel{This string is already label-less} % output: 'This string is already label-less



removedlabel





%Figure~ref{some_label}

end{document}

Now removedlabel gives the string without the label... But I am not sure what you want to do... May be you should be more clear on what you expect from the command.

share|improve this answer

edited Feb 18 at 0:46

answered Feb 17 at 15:34

koleygrkoleygr

13k11038

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  This code isn't actually removing the label, it just briefly changes the behaviour of the label command to null. If I were to print the argument of removelabel as if it was a string, I'd still see label{some_label}.
  
  – noibe
  Feb 17 at 22:53
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  if you expand the argument of removelabel... it will not be there... If you want an argument of a command to be something and without even expanding it to disappear ane part of it... I am afraid it can't be done...
  
  – koleygr
  Feb 18 at 0:37
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  I suggest defmyEmptyLabel#1{@bsphack@esphack} .
  
  – Ulrich Diez
  Feb 18 at 21:55
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @UlrichDiez.... you may write an answer because I don't really know what is these commands...
  
  – koleygr
  Feb 19 at 10:56
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  @koleygr label shall not deliver visible things into the output-file/pdf-file. @bsphack/@esphack ensures that a space-token behind the argument of a label-command does not produce undesired visible whitespace in case there already was a space before the label-command... Many of these commands are explained in source2e.pdf
  
  – Ulrich Diez
  Feb 19 at 13:44
  
  
  

  
  
  
  

 | 
show 1 more comment

This is something I suppose could work for you:

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabel#1letlabeloldlabel} % some code

begin{document}

begin{minipage}{textwidth}

removelabel{captionof{figure}{label{some_label} This label should be removed}} % output: 'This label should be removed'

end{minipage}

removelabel{This string is already label-less} % output: 'This string is already label-less



Figure~ref{some_label}

end{document}

In the output the label is not defined and returns questionmarks

Edit:

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabelxdefremovedlabel{#1}letlabeloldlabel} % some code

begin{document}



removelabel{label{some_label} This label should be removed} 

removedlabel



removelabel{This string is already label-less} % output: 'This string is already label-less



removedlabel





%Figure~ref{some_label}

end{document}

Now removedlabel gives the string without the label... But I am not sure what you want to do... May be you should be more clear on what you expect from the command.

share|improve this answer

edited Feb 18 at 0:46

answered Feb 17 at 15:34

koleygrkoleygr

13k11038

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabel#1letlabeloldlabel} % some code

begin{document}

begin{minipage}{textwidth}

removelabel{captionof{figure}{label{some_label} This label should be removed}} % output: 'This label should be removed'

end{minipage}

removelabel{This string is already label-less} % output: 'This string is already label-less



Figure~ref{some_label}

end{document}

documentclass{article}

usepackage{caption}

usepackage{hyperref}

defmyEmptyLabel#1{}

newcommand{removelabel}[1]{letoldlabellabelletlabelmyEmptyLabelxdefremovedlabel{#1}letlabeloldlabel} % some code

begin{document}



removelabel{label{some_label} This label should be removed} 

removedlabel



removelabel{This string is already label-less} % output: 'This string is already label-less



removedlabel





%Figure~ref{some_label}

end{document}

share|improve this answer

edited Feb 18 at 0:46

answered Feb 17 at 15:34

koleygrkoleygr

13k11038

answered Feb 17 at 15:34

koleygrkoleygr

13k11038

answered Feb 17 at 15:34

koleygrkoleygr

13k11038