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How to print mathematical object in text mode in lualatex?

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1

1

In one of the callbacks of lualatex in lua (build_filter) i print the first argument of function.

begin{luacode}

function f(a)

tex.print(a)

end

luatexbase.add_to_callback("buildpage_filter",f,"build_filter")

end{luacode}

But during compiling i get an error:

! Missing $ inserted.

<inserted text>

$

Ok, I know,that variable a probably has characters, which use in math mode, but how can I print it in text mode?

luatex

share|improve this question

edited 14 hours ago

sheß

2,09111432

asked 17 hours ago

Aleksandr KozlovskiyAleksandr Kozlovskiy

261

New contributor

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

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  printing text from the buildpage_filter isn't really expected, I tried to extend your document to a test file but could not get the error that you show as the text never appeared in the document. If you provide a test file someone can easily debug it.
  
  – David Carlisle
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @sheß why the edit? In general it's better to use a code block than a quote for showing error messages
  
  – David Carlisle
  14 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you very mutch. Catcode -2 help me solve my problem. 🙌
  
  – Aleksandr Kozlovskiy
  13 hours ago
  

  
  
  
  

add a comment | 

1

1

In one of the callbacks of lualatex in lua (build_filter) i print the first argument of function.

begin{luacode}

function f(a)

tex.print(a)

end

luatexbase.add_to_callback("buildpage_filter",f,"build_filter")

end{luacode}

But during compiling i get an error:

! Missing $ inserted.

<inserted text>

$

Ok, I know,that variable a probably has characters, which use in math mode, but how can I print it in text mode?

luatex

share|improve this question

edited 14 hours ago

sheß

2,09111432

asked 17 hours ago

Aleksandr KozlovskiyAleksandr Kozlovskiy

261

New contributor

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

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  printing text from the buildpage_filter isn't really expected, I tried to extend your document to a test file but could not get the error that you show as the text never appeared in the document. If you provide a test file someone can easily debug it.
  
  – David Carlisle
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @sheß why the edit? In general it's better to use a code block than a quote for showing error messages
  
  – David Carlisle
  14 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thank you very mutch. Catcode -2 help me solve my problem. 🙌
  
  – Aleksandr Kozlovskiy
  13 hours ago
  

  
  
  
  

add a comment | 

In one of the callbacks of lualatex in lua (build_filter) i print the first argument of function.

begin{luacode}

function f(a)

tex.print(a)

end

luatexbase.add_to_callback("buildpage_filter",f,"build_filter")

end{luacode}

But during compiling i get an error:

! Missing $ inserted.

<inserted text>

$

Ok, I know,that variable a probably has characters, which use in math mode, but how can I print it in text mode?

luatex

share|improve this question

edited 14 hours ago

sheß

2,09111432

asked 17 hours ago

Aleksandr KozlovskiyAleksandr Kozlovskiy

261

New contributor

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

begin{luacode}

function f(a)

tex.print(a)

end

luatexbase.add_to_callback("buildpage_filter",f,"build_filter")

end{luacode}

! Missing $ inserted.

<inserted text>

$

share|improve this question

edited 14 hours ago

sheß

2,09111432

asked 17 hours ago

Aleksandr KozlovskiyAleksandr Kozlovskiy

261

New contributor

Aleksandr Kozlovskiy 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 14 hours ago

sheß

2,09111432

asked 17 hours ago

Aleksandr KozlovskiyAleksandr Kozlovskiy

261

New contributor

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

edited 14 hours ago

sheß

2,09111432

edited 14 hours ago

sheß

2,09111432

asked 17 hours ago

Aleksandr KozlovskiyAleksandr Kozlovskiy

261

New contributor

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

asked 17 hours ago

Aleksandr KozlovskiyAleksandr Kozlovskiy

261

1 Answer
1

active

oldest

votes

2

Please always provide a usable test file not a fragment.

buildpage_filter gets an argument one of a fixed list of strings, some of them , such as after_output include an underscore so if you insert that string into the document via tex.print then you will need to use a non default catcode table.

One possible signature of tex.print is

tex.print(<number> n, <string> s, ...)

where n is the number of the catcode table used to print the string s. There are two special catcode tables which are identified by negative numbers:

• 
  n = -1: Uses the currently active catcode regime


• 
  n = -2: Uses the same catcodes as thetoks, i.e. all characters have catcode 12, expect spaces which have catcode 10.

share|improve this answer

edited 14 hours ago

Henri Menke

76.1k8167281

answered 16 hours ago

David CarlisleDavid Carlisle

493k4111371885

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But what category i must use in sprint function (because,as i understoode,print function not allow me set catcode category) Or i must use some another way to change this table,to fix my error.
  
  – Aleksandr Kozlovskiy
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @AleksandrKozlovskiy -2 should work, but as I say I couldn't get any text printed here to appear, why adding text to the page from this filter?
  
  – David Carlisle
  14 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @HenriMenke actually I think the manual is wrong there, catcode12 except space is like string not like thetoks but -2 is what is needed anyway.
  
  – David Carlisle
  14 hours ago
  

  
  
  
  

add a comment | 

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2

Please always provide a usable test file not a fragment.

buildpage_filter gets an argument one of a fixed list of strings, some of them , such as after_output include an underscore so if you insert that string into the document via tex.print then you will need to use a non default catcode table.

One possible signature of tex.print is

tex.print(<number> n, <string> s, ...)

where n is the number of the catcode table used to print the string s. There are two special catcode tables which are identified by negative numbers:

• 
  n = -1: Uses the currently active catcode regime


• 
  n = -2: Uses the same catcodes as thetoks, i.e. all characters have catcode 12, expect spaces which have catcode 10.

share|improve this answer

edited 14 hours ago

Henri Menke

76.1k8167281

answered 16 hours ago

David CarlisleDavid Carlisle

493k4111371885

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But what category i must use in sprint function (because,as i understoode,print function not allow me set catcode category) Or i must use some another way to change this table,to fix my error.
  
  – Aleksandr Kozlovskiy
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @AleksandrKozlovskiy -2 should work, but as I say I couldn't get any text printed here to appear, why adding text to the page from this filter?
  
  – David Carlisle
  14 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @HenriMenke actually I think the manual is wrong there, catcode12 except space is like string not like thetoks but -2 is what is needed anyway.
  
  – David Carlisle
  14 hours ago
  

  
  
  
  

add a comment | 

2

Please always provide a usable test file not a fragment.

buildpage_filter gets an argument one of a fixed list of strings, some of them , such as after_output include an underscore so if you insert that string into the document via tex.print then you will need to use a non default catcode table.

One possible signature of tex.print is

tex.print(<number> n, <string> s, ...)

where n is the number of the catcode table used to print the string s. There are two special catcode tables which are identified by negative numbers:

• 
  n = -1: Uses the currently active catcode regime


• 
  n = -2: Uses the same catcodes as thetoks, i.e. all characters have catcode 12, expect spaces which have catcode 10.

share|improve this answer

edited 14 hours ago

Henri Menke

76.1k8167281

answered 16 hours ago

David CarlisleDavid Carlisle

493k4111371885

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  But what category i must use in sprint function (because,as i understoode,print function not allow me set catcode category) Or i must use some another way to change this table,to fix my error.
  
  – Aleksandr Kozlovskiy
  15 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @AleksandrKozlovskiy -2 should work, but as I say I couldn't get any text printed here to appear, why adding text to the page from this filter?
  
  – David Carlisle
  14 hours ago
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @HenriMenke actually I think the manual is wrong there, catcode12 except space is like string not like thetoks but -2 is what is needed anyway.
  
  – David Carlisle
  14 hours ago
  

  
  
  
  

add a comment | 

Please always provide a usable test file not a fragment.

buildpage_filter gets an argument one of a fixed list of strings, some of them , such as after_output include an underscore so if you insert that string into the document via tex.print then you will need to use a non default catcode table.

One possible signature of tex.print is

tex.print(<number> n, <string> s, ...)

where n is the number of the catcode table used to print the string s. There are two special catcode tables which are identified by negative numbers:

• 
  n = -1: Uses the currently active catcode regime


• 
  n = -2: Uses the same catcodes as thetoks, i.e. all characters have catcode 12, expect spaces which have catcode 10.

share|improve this answer

edited 14 hours ago

Henri Menke

76.1k8167281

answered 16 hours ago

David CarlisleDavid Carlisle

493k4111371885

tex.print(<number> n, <string> s, ...)

share|improve this answer

edited 14 hours ago

Henri Menke

76.1k8167281

answered 16 hours ago

David CarlisleDavid Carlisle

493k4111371885

edited 14 hours ago

Henri Menke

76.1k8167281

edited 14 hours ago

Henri Menke

76.1k8167281

answered 16 hours ago

David CarlisleDavid Carlisle

493k4111371885

answered 16 hours ago

David CarlisleDavid Carlisle

493k4111371885