A pseudocode environment allowing for mathmode and UTF-8 characters?

up vote
9
down vote

favorite

My usual goto for writing pseudocode is the listings package, but unfortunately, I find myself writing a document in my native language (portuguese) and I need to write UTF-8 characters in pseudocode, and listings is not playing along.

Furthermore, I also need to use mathmode.

The code I'm trying to do in specific is this:

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

This particular bit of code doesn't work, as I get the following error:

! Package inputenc Error: Unicode char Ã¯Â¿Â½expandafter (U+4F1)
(inputenc) not set up for use with LaTeX.

(Though I do need inputenc to typeset UTF-8 characters, and as far as I can tell, it's a listings problem.)

The specific package does not matter, I'm just looking for a way to typeset pseudocode in my native language while still being able to use mathmode.

This also rules out fancyvrb and alltt, as those didn't play along with sub and superscripts.

TIA

edited Aug 11 at 20:35

asked Aug 11 at 20:04

Robly18

484

add a commentÂ |Â

up vote
9
down vote

favorite

Furthermore, I also need to use mathmode.

The code I'm trying to do in specific is this:

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

This particular bit of code doesn't work, as I get the following error:

! Package inputenc Error: Unicode char Ã¯Â¿Â½expandafter (U+4F1)
(inputenc) not set up for use with LaTeX.

(Though I do need inputenc to typeset UTF-8 characters, and as far as I can tell, it's a listings problem.)

The specific package does not matter, I'm just looking for a way to typeset pseudocode in my native language while still being able to use mathmode.

This also rules out fancyvrb and alltt, as those didn't play along with sub and superscripts.

TIA

edited Aug 11 at 20:35

asked Aug 11 at 20:04

Robly18

484

add a commentÂ |Â

up vote
9
down vote

favorite

Furthermore, I also need to use mathmode.

The code I'm trying to do in specific is this:

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

This particular bit of code doesn't work, as I get the following error:

! Package inputenc Error: Unicode char Ã¯Â¿Â½expandafter (U+4F1)
(inputenc) not set up for use with LaTeX.

(Though I do need inputenc to typeset UTF-8 characters, and as far as I can tell, it's a listings problem.)

The specific package does not matter, I'm just looking for a way to typeset pseudocode in my native language while still being able to use mathmode.

This also rules out fancyvrb and alltt, as those didn't play along with sub and superscripts.

TIA

edited Aug 11 at 20:35

asked Aug 11 at 20:04

Robly18

484

Furthermore, I also need to use mathmode.

The code I'm trying to do in specific is this:

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

This particular bit of code doesn't work, as I get the following error:

! Package inputenc Error: Unicode char Ã¯Â¿Â½expandafter (U+4F1)
(inputenc) not set up for use with LaTeX.

(Though I do need inputenc to typeset UTF-8 characters, and as far as I can tell, it's a listings problem.)

The specific package does not matter, I'm just looking for a way to typeset pseudocode in my native language while still being able to use mathmode.

This also rules out fancyvrb and alltt, as those didn't play along with sub and superscripts.

TIA

edited Aug 11 at 20:35

asked Aug 11 at 20:04

Robly18

484

edited Aug 11 at 20:35

asked Aug 11 at 20:04

Robly18

484

asked Aug 11 at 20:04

Robly18

484

asked Aug 11 at 20:04

Robly18

484

add a commentÂ |Â

3 Answers
3

active

oldest

votes

up vote
11
down vote

accepted

You should compile the code with XeLaTeX. It works well with this type of coding.

enter image description here

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
begindocument
PortuguÃƒÂªs para principiantes with formula
[A(lambda)=cos lambda + sin lambda]

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

edited Aug 11 at 20:29

answered Aug 11 at 20:12

Sebastiano

7,65831553

This is not what I want. I already have UTF-8 working fine in my document, I am just looking for a pseudocode environment that also allows it.
â€“Â Robly18
Aug 11 at 20:14

1

@Robly18 I have tried to understand your question. You haven't entered any code inside so we can all understand it better.
â€“Â Sebastiano
Aug 11 at 20:20

Okay, I added a code snippet in response. Thank you for the feedback. As for the suggested code, it might work, but I'd like some more flexibility with the keywords. For example, I'd like to write "se" instead of "if".
â€“Â Robly18
Aug 11 at 20:25

@Robly18 Was that what you expected? You are a new user: sorry I didn't welcome you on TeX.SE.
â€“Â Sebastiano
Aug 11 at 20:31

1

Okay, yeah, that works perfectly. I was hoping for a more portable solution, but if I can't find anything better, this is good. Thanks a lot!
â€“Â Robly18
Aug 11 at 20:34

add a commentÂ |Â

up vote
12
down vote

Sebastiano's answer works well with UTF-8 based engines. To use with pdfLaTeX you can use lstsetliterate=...:

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings

newcommandRmathbb R

% taken from: https://tex.stackexchange.com/a/381647/134574
lstset
 keepspaces, % Apparently this works... (https://tex.stackexchange.com/a/46695/134574)
 literate=
 ÃƒÂ¡'a1
 ÃƒÂ `a1
 ÃƒÂ£~a1
 ÃƒÂ©'e1
 ÃƒÂª^e1
 ÃƒÂ'i1
 ÃƒÂ³'o1
 ÃƒÂµ~o1
 ÃƒÂº'u1
 ÃƒÂ¼"u1
 ÃƒÂ§cc1


begindocument

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

About the spacing issue pointed out in the comments. It looks like there's a bug in listings which, after mathescaped text, the space after literated text disappears. I asked a question about this issue and Ulrich Diez apparently fired out what the problem was.

To fix the problem, add the following definition to your file:

makeatletter
deflst@Literate#1#2#3%
 ifxrelax#2@emptyelse
 lst@CArgX #1relaxlst@CDef
 
 letlst@next@empty
 lst@ifxliterate
 lst@ifmode letlst@nextlst@CArgEmpty fi
 fi
 ifxlst@next@empty
 ifxlst@OutputBox@gobbleelse
 lst@XPrintToken letlst@scanmodelst@scan@m
 lst@token#2lst@length#3relax
 lst@XPrintToken
 % Ã¢Â†Â“ Missing switch added by Ulrich Diez to fix the spacing issue
 lst@whitespacefalse %!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 fi
 letlst@nextlst@CArgEmptyGobble
 fi
 lst@next%
 @empty
 expandafterlst@Literate
 fi
makeatother

or, more compactly:

usepackageetoolbox
makeatletter
patchcmdlst@Literate
 lst@XPrintTokenfi
 lst@XPrintTokenlst@whitespacefalsefi

edited Aug 13 at 12:53

answered Aug 11 at 20:32

Phelype Oleinik

15.8k33466

Thank you very much for quoting my name. Obviously the best must be given what Caesar is to Caesar. +1.
â€“Â Sebastiano
Aug 11 at 20:34

This solution is more portable, but there is a small problem. It's messing up some of the spacing. To see an example, see: i.imgur.com/92Fk3Tg.png Namely, notice the spacing between 'Ã ' and 'lista'. It can be fixed by adding an extra space between the two characters, however.
â€“Â Robly18
Aug 11 at 20:40

@Robly18 Strange indeed. Note that if you write Ã lista Ã lista (duplicated), the second Ã lista is printed correctly. I think it's a bug... But using the keepspaces option apparently solves the problem temporarily.
â€“Â Phelype Oleinik
Aug 11 at 21:02

@Robly18 Actually, the problem because of the $v$ . If you write Adicionar v Ã lista $v$ Ã lista, the second space disappears.
â€“Â Phelype Oleinik
Aug 11 at 21:09

You're right. I added the option keepspaces. Thank you!
â€“Â Robly18
Aug 11 at 21:19

Â |Â
show 1 more comment

up vote
11
down vote

Heiko Oberdiek's listingsutf8-package offers a workaround to the problem:

It enhances the syntax of the lstinputlisting-command so that it can read files that are encoded in utf8 and internally re-encode them in some 8bit-encoding before "feeding" to the internals of the listings package.

In case the latin-1-encoding (ISO8859-1), which is an 8bit-encoding, can encode all characters needed in your pseudocode, you can probably use the filecontents*-environment from the filecontents-package for writing an utf8-encoded temporary file, and then use the lstinputlisting-command which is enhanced by the listingsutf8-package for reading that utf8-file and internally re-encoding it in latin-1 before feeding it to the internals of the listings-package.

Instead of latin-1, as in the example below, you can use other 8bit-encodings in case they do better suit your needs.

In any case using the listingsutf8-package requires Îµ-TeX-extensions and the pdffiledump-primitive from pdfTeX. In other words: No matter if run in .dvi-mode or run in .pdf-mode, you need some pdfLaTeX-engine with Îµ-TeX-extensions.

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
usepackagelistingsutf8
usepackagefilecontents


begindocument

beginfilecontents*tempfile.tex
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endfilecontents*
lstinputlisting[mathescape=true, inputencoding=utf8/latin1]tempfile.tex

enddocument

enter image description here

edited Aug 11 at 22:04

answered Aug 11 at 21:58

Ulrich Diez

3,005313

add a commentÂ |Â

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3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

up vote
11
down vote

accepted

You should compile the code with XeLaTeX. It works well with this type of coding.

enter image description here

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
begindocument
PortuguÃƒÂªs para principiantes with formula
[A(lambda)=cos lambda + sin lambda]

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

edited Aug 11 at 20:29

answered Aug 11 at 20:12

Sebastiano

7,65831553

This is not what I want. I already have UTF-8 working fine in my document, I am just looking for a pseudocode environment that also allows it.
â€“Â Robly18
Aug 11 at 20:14

1

@Robly18 I have tried to understand your question. You haven't entered any code inside so we can all understand it better.
â€“Â Sebastiano
Aug 11 at 20:20

Okay, I added a code snippet in response. Thank you for the feedback. As for the suggested code, it might work, but I'd like some more flexibility with the keywords. For example, I'd like to write "se" instead of "if".
â€“Â Robly18
Aug 11 at 20:25

@Robly18 Was that what you expected? You are a new user: sorry I didn't welcome you on TeX.SE.
â€“Â Sebastiano
Aug 11 at 20:31

1

Okay, yeah, that works perfectly. I was hoping for a more portable solution, but if I can't find anything better, this is good. Thanks a lot!
â€“Â Robly18
Aug 11 at 20:34

add a commentÂ |Â

up vote
11
down vote

accepted

You should compile the code with XeLaTeX. It works well with this type of coding.

enter image description here

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
begindocument
PortuguÃƒÂªs para principiantes with formula
[A(lambda)=cos lambda + sin lambda]

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

edited Aug 11 at 20:29

answered Aug 11 at 20:12

Sebastiano

7,65831553

This is not what I want. I already have UTF-8 working fine in my document, I am just looking for a pseudocode environment that also allows it.
â€“Â Robly18
Aug 11 at 20:14

1

@Robly18 I have tried to understand your question. You haven't entered any code inside so we can all understand it better.
â€“Â Sebastiano
Aug 11 at 20:20

Okay, I added a code snippet in response. Thank you for the feedback. As for the suggested code, it might work, but I'd like some more flexibility with the keywords. For example, I'd like to write "se" instead of "if".
â€“Â Robly18
Aug 11 at 20:25

@Robly18 Was that what you expected? You are a new user: sorry I didn't welcome you on TeX.SE.
â€“Â Sebastiano
Aug 11 at 20:31

1

Okay, yeah, that works perfectly. I was hoping for a more portable solution, but if I can't find anything better, this is good. Thanks a lot!
â€“Â Robly18
Aug 11 at 20:34

add a commentÂ |Â

up vote
11
down vote

accepted

You should compile the code with XeLaTeX. It works well with this type of coding.

enter image description here

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
begindocument
PortuguÃƒÂªs para principiantes with formula
[A(lambda)=cos lambda + sin lambda]

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

edited Aug 11 at 20:29

answered Aug 11 at 20:12

Sebastiano

7,65831553

You should compile the code with XeLaTeX. It works well with this type of coding.

enter image description here

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
begindocument
PortuguÃƒÂªs para principiantes with formula
[A(lambda)=cos lambda + sin lambda]

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

edited Aug 11 at 20:29

answered Aug 11 at 20:12

Sebastiano

7,65831553

edited Aug 11 at 20:29

answered Aug 11 at 20:12

Sebastiano

7,65831553

answered Aug 11 at 20:12

Sebastiano

7,65831553

answered Aug 11 at 20:12

Sebastiano

7,65831553

This is not what I want. I already have UTF-8 working fine in my document, I am just looking for a pseudocode environment that also allows it.
â€“Â Robly18
Aug 11 at 20:14

1

@Robly18 I have tried to understand your question. You haven't entered any code inside so we can all understand it better.
â€“Â Sebastiano
Aug 11 at 20:20

Okay, I added a code snippet in response. Thank you for the feedback. As for the suggested code, it might work, but I'd like some more flexibility with the keywords. For example, I'd like to write "se" instead of "if".
â€“Â Robly18
Aug 11 at 20:25

@Robly18 Was that what you expected? You are a new user: sorry I didn't welcome you on TeX.SE.
â€“Â Sebastiano
Aug 11 at 20:31

1

Okay, yeah, that works perfectly. I was hoping for a more portable solution, but if I can't find anything better, this is good. Thanks a lot!
â€“Â Robly18
Aug 11 at 20:34

add a commentÂ |Â

This is not what I want. I already have UTF-8 working fine in my document, I am just looking for a pseudocode environment that also allows it.
â€“Â Robly18
Aug 11 at 20:14

1

@Robly18 I have tried to understand your question. You haven't entered any code inside so we can all understand it better.
â€“Â Sebastiano
Aug 11 at 20:20

Okay, I added a code snippet in response. Thank you for the feedback. As for the suggested code, it might work, but I'd like some more flexibility with the keywords. For example, I'd like to write "se" instead of "if".
â€“Â Robly18
Aug 11 at 20:25

@Robly18 Was that what you expected? You are a new user: sorry I didn't welcome you on TeX.SE.
â€“Â Sebastiano
Aug 11 at 20:31

1

Okay, yeah, that works perfectly. I was hoping for a more portable solution, but if I can't find anything better, this is good. Thanks a lot!
â€“Â Robly18
Aug 11 at 20:34

This is not what I want. I already have UTF-8 working fine in my document, I am just looking for a pseudocode environment that also allows it.
â€“Â Robly18
Aug 11 at 20:14

@Robly18 I have tried to understand your question. You haven't entered any code inside so we can all understand it better.
â€“Â Sebastiano
Aug 11 at 20:20

Okay, I added a code snippet in response. Thank you for the feedback. As for the suggested code, it might work, but I'd like some more flexibility with the keywords. For example, I'd like to write "se" instead of "if".
â€“Â Robly18
Aug 11 at 20:25

@Robly18 Was that what you expected? You are a new user: sorry I didn't welcome you on TeX.SE.
â€“Â Sebastiano
Aug 11 at 20:31

Okay, yeah, that works perfectly. I was hoping for a more portable solution, but if I can't find anything better, this is good. Thanks a lot!
â€“Â Robly18
Aug 11 at 20:34

add a commentÂ |Â

up vote
12
down vote

Sebastiano's answer works well with UTF-8 based engines. To use with pdfLaTeX you can use lstsetliterate=...:

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings

newcommandRmathbb R

% taken from: https://tex.stackexchange.com/a/381647/134574
lstset
 keepspaces, % Apparently this works... (https://tex.stackexchange.com/a/46695/134574)
 literate=
 ÃƒÂ¡'a1
 ÃƒÂ `a1
 ÃƒÂ£~a1
 ÃƒÂ©'e1
 ÃƒÂª^e1
 ÃƒÂ'i1
 ÃƒÂ³'o1
 ÃƒÂµ~o1
 ÃƒÂº'u1
 ÃƒÂ¼"u1
 ÃƒÂ§cc1


begindocument

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

To fix the problem, add the following definition to your file:

makeatletter
deflst@Literate#1#2#3%
 ifxrelax#2@emptyelse
 lst@CArgX #1relaxlst@CDef
 
 letlst@next@empty
 lst@ifxliterate
 lst@ifmode letlst@nextlst@CArgEmpty fi
 fi
 ifxlst@next@empty
 ifxlst@OutputBox@gobbleelse
 lst@XPrintToken letlst@scanmodelst@scan@m
 lst@token#2lst@length#3relax
 lst@XPrintToken
 % Ã¢Â†Â“ Missing switch added by Ulrich Diez to fix the spacing issue
 lst@whitespacefalse %!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 fi
 letlst@nextlst@CArgEmptyGobble
 fi
 lst@next%
 @empty
 expandafterlst@Literate
 fi
makeatother

or, more compactly:

usepackageetoolbox
makeatletter
patchcmdlst@Literate
 lst@XPrintTokenfi
 lst@XPrintTokenlst@whitespacefalsefi

edited Aug 13 at 12:53

answered Aug 11 at 20:32

Phelype Oleinik

15.8k33466

Thank you very much for quoting my name. Obviously the best must be given what Caesar is to Caesar. +1.
â€“Â Sebastiano
Aug 11 at 20:34

This solution is more portable, but there is a small problem. It's messing up some of the spacing. To see an example, see: i.imgur.com/92Fk3Tg.png Namely, notice the spacing between 'Ã ' and 'lista'. It can be fixed by adding an extra space between the two characters, however.
â€“Â Robly18
Aug 11 at 20:40

@Robly18 Strange indeed. Note that if you write Ã lista Ã lista (duplicated), the second Ã lista is printed correctly. I think it's a bug... But using the keepspaces option apparently solves the problem temporarily.
â€“Â Phelype Oleinik
Aug 11 at 21:02

@Robly18 Actually, the problem because of the $v$ . If you write Adicionar v Ã lista $v$ Ã lista, the second space disappears.
â€“Â Phelype Oleinik
Aug 11 at 21:09

You're right. I added the option keepspaces. Thank you!
â€“Â Robly18
Aug 11 at 21:19

Â |Â
show 1 more comment

up vote
12
down vote

Sebastiano's answer works well with UTF-8 based engines. To use with pdfLaTeX you can use lstsetliterate=...:

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings

newcommandRmathbb R

% taken from: https://tex.stackexchange.com/a/381647/134574
lstset
 keepspaces, % Apparently this works... (https://tex.stackexchange.com/a/46695/134574)
 literate=
 ÃƒÂ¡'a1
 ÃƒÂ `a1
 ÃƒÂ£~a1
 ÃƒÂ©'e1
 ÃƒÂª^e1
 ÃƒÂ'i1
 ÃƒÂ³'o1
 ÃƒÂµ~o1
 ÃƒÂº'u1
 ÃƒÂ¼"u1
 ÃƒÂ§cc1


begindocument

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

To fix the problem, add the following definition to your file:

makeatletter
deflst@Literate#1#2#3%
 ifxrelax#2@emptyelse
 lst@CArgX #1relaxlst@CDef
 
 letlst@next@empty
 lst@ifxliterate
 lst@ifmode letlst@nextlst@CArgEmpty fi
 fi
 ifxlst@next@empty
 ifxlst@OutputBox@gobbleelse
 lst@XPrintToken letlst@scanmodelst@scan@m
 lst@token#2lst@length#3relax
 lst@XPrintToken
 % Ã¢Â†Â“ Missing switch added by Ulrich Diez to fix the spacing issue
 lst@whitespacefalse %!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 fi
 letlst@nextlst@CArgEmptyGobble
 fi
 lst@next%
 @empty
 expandafterlst@Literate
 fi
makeatother

or, more compactly:

usepackageetoolbox
makeatletter
patchcmdlst@Literate
 lst@XPrintTokenfi
 lst@XPrintTokenlst@whitespacefalsefi

edited Aug 13 at 12:53

answered Aug 11 at 20:32

Phelype Oleinik

15.8k33466

Thank you very much for quoting my name. Obviously the best must be given what Caesar is to Caesar. +1.
â€“Â Sebastiano
Aug 11 at 20:34

This solution is more portable, but there is a small problem. It's messing up some of the spacing. To see an example, see: i.imgur.com/92Fk3Tg.png Namely, notice the spacing between 'Ã ' and 'lista'. It can be fixed by adding an extra space between the two characters, however.
â€“Â Robly18
Aug 11 at 20:40

@Robly18 Strange indeed. Note that if you write Ã lista Ã lista (duplicated), the second Ã lista is printed correctly. I think it's a bug... But using the keepspaces option apparently solves the problem temporarily.
â€“Â Phelype Oleinik
Aug 11 at 21:02

@Robly18 Actually, the problem because of the $v$ . If you write Adicionar v Ã lista $v$ Ã lista, the second space disappears.
â€“Â Phelype Oleinik
Aug 11 at 21:09

You're right. I added the option keepspaces. Thank you!
â€“Â Robly18
Aug 11 at 21:19

Â |Â
show 1 more comment

up vote
12
down vote

Sebastiano's answer works well with UTF-8 based engines. To use with pdfLaTeX you can use lstsetliterate=...:

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings

newcommandRmathbb R

% taken from: https://tex.stackexchange.com/a/381647/134574
lstset
 keepspaces, % Apparently this works... (https://tex.stackexchange.com/a/46695/134574)
 literate=
 ÃƒÂ¡'a1
 ÃƒÂ `a1
 ÃƒÂ£~a1
 ÃƒÂ©'e1
 ÃƒÂª^e1
 ÃƒÂ'i1
 ÃƒÂ³'o1
 ÃƒÂµ~o1
 ÃƒÂº'u1
 ÃƒÂ¼"u1
 ÃƒÂ§cc1


begindocument

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

To fix the problem, add the following definition to your file:

makeatletter
deflst@Literate#1#2#3%
 ifxrelax#2@emptyelse
 lst@CArgX #1relaxlst@CDef
 
 letlst@next@empty
 lst@ifxliterate
 lst@ifmode letlst@nextlst@CArgEmpty fi
 fi
 ifxlst@next@empty
 ifxlst@OutputBox@gobbleelse
 lst@XPrintToken letlst@scanmodelst@scan@m
 lst@token#2lst@length#3relax
 lst@XPrintToken
 % Ã¢Â†Â“ Missing switch added by Ulrich Diez to fix the spacing issue
 lst@whitespacefalse %!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 fi
 letlst@nextlst@CArgEmptyGobble
 fi
 lst@next%
 @empty
 expandafterlst@Literate
 fi
makeatother

or, more compactly:

usepackageetoolbox
makeatletter
patchcmdlst@Literate
 lst@XPrintTokenfi
 lst@XPrintTokenlst@whitespacefalsefi

edited Aug 13 at 12:53

answered Aug 11 at 20:32

Phelype Oleinik

15.8k33466

Sebastiano's answer works well with UTF-8 based engines. To use with pdfLaTeX you can use lstsetliterate=...:

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings

newcommandRmathbb R

% taken from: https://tex.stackexchange.com/a/381647/134574
lstset
 keepspaces, % Apparently this works... (https://tex.stackexchange.com/a/46695/134574)
 literate=
 ÃƒÂ¡'a1
 ÃƒÂ `a1
 ÃƒÂ£~a1
 ÃƒÂ©'e1
 ÃƒÂª^e1
 ÃƒÂ'i1
 ÃƒÂ³'o1
 ÃƒÂµ~o1
 ÃƒÂº'u1
 ÃƒÂ¼"u1
 ÃƒÂ§cc1


begindocument

beginlstlisting[mathescape=true]
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endlstlisting

enddocument

To fix the problem, add the following definition to your file:

makeatletter
deflst@Literate#1#2#3%
 ifxrelax#2@emptyelse
 lst@CArgX #1relaxlst@CDef
 
 letlst@next@empty
 lst@ifxliterate
 lst@ifmode letlst@nextlst@CArgEmpty fi
 fi
 ifxlst@next@empty
 ifxlst@OutputBox@gobbleelse
 lst@XPrintToken letlst@scanmodelst@scan@m
 lst@token#2lst@length#3relax
 lst@XPrintToken
 % Ã¢Â†Â“ Missing switch added by Ulrich Diez to fix the spacing issue
 lst@whitespacefalse %!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 fi
 letlst@nextlst@CArgEmptyGobble
 fi
 lst@next%
 @empty
 expandafterlst@Literate
 fi
makeatother

or, more compactly:

usepackageetoolbox
makeatletter
patchcmdlst@Literate
 lst@XPrintTokenfi
 lst@XPrintTokenlst@whitespacefalsefi

edited Aug 13 at 12:53

answered Aug 11 at 20:32

Phelype Oleinik

15.8k33466

edited Aug 13 at 12:53

answered Aug 11 at 20:32

Phelype Oleinik

15.8k33466

answered Aug 11 at 20:32

Phelype Oleinik

15.8k33466

answered Aug 11 at 20:32

Phelype Oleinik

15.8k33466

Thank you very much for quoting my name. Obviously the best must be given what Caesar is to Caesar. +1.
â€“Â Sebastiano
Aug 11 at 20:34

This solution is more portable, but there is a small problem. It's messing up some of the spacing. To see an example, see: i.imgur.com/92Fk3Tg.png Namely, notice the spacing between 'Ã ' and 'lista'. It can be fixed by adding an extra space between the two characters, however.
â€“Â Robly18
Aug 11 at 20:40

@Robly18 Strange indeed. Note that if you write Ã lista Ã lista (duplicated), the second Ã lista is printed correctly. I think it's a bug... But using the keepspaces option apparently solves the problem temporarily.
â€“Â Phelype Oleinik
Aug 11 at 21:02

@Robly18 Actually, the problem because of the $v$ . If you write Adicionar v Ã lista $v$ Ã lista, the second space disappears.
â€“Â Phelype Oleinik
Aug 11 at 21:09

You're right. I added the option keepspaces. Thank you!
â€“Â Robly18
Aug 11 at 21:19

Â |Â
show 1 more comment

Thank you very much for quoting my name. Obviously the best must be given what Caesar is to Caesar. +1.
â€“Â Sebastiano
Aug 11 at 20:34

This solution is more portable, but there is a small problem. It's messing up some of the spacing. To see an example, see: i.imgur.com/92Fk3Tg.png Namely, notice the spacing between 'Ã ' and 'lista'. It can be fixed by adding an extra space between the two characters, however.
â€“Â Robly18
Aug 11 at 20:40

@Robly18 Strange indeed. Note that if you write Ã lista Ã lista (duplicated), the second Ã lista is printed correctly. I think it's a bug... But using the keepspaces option apparently solves the problem temporarily.
â€“Â Phelype Oleinik
Aug 11 at 21:02

@Robly18 Actually, the problem because of the $v$ . If you write Adicionar v Ã lista $v$ Ã lista, the second space disappears.
â€“Â Phelype Oleinik
Aug 11 at 21:09

You're right. I added the option keepspaces. Thank you!
â€“Â Robly18
Aug 11 at 21:19

Thank you very much for quoting my name. Obviously the best must be given what Caesar is to Caesar. +1.
â€“Â Sebastiano
Aug 11 at 20:34

This solution is more portable, but there is a small problem. It's messing up some of the spacing. To see an example, see: i.imgur.com/92Fk3Tg.png Namely, notice the spacing between 'Ã ' and 'lista'. It can be fixed by adding an extra space between the two characters, however.
â€“Â Robly18
Aug 11 at 20:40

@Robly18 Strange indeed. Note that if you write Ã lista Ã lista (duplicated), the second Ã lista is printed correctly. I think it's a bug... But using the keepspaces option apparently solves the problem temporarily.
â€“Â Phelype Oleinik
Aug 11 at 21:02

@Robly18 Actually, the problem because of the $v$ . If you write Adicionar v Ã lista $v$ Ã lista, the second space disappears.
â€“Â Phelype Oleinik
Aug 11 at 21:09

You're right. I added the option keepspaces. Thank you!
â€“Â Robly18
Aug 11 at 21:19

Â |Â
show 1 more comment

up vote
11
down vote

Heiko Oberdiek's listingsutf8-package offers a workaround to the problem:

Instead of latin-1, as in the example below, you can use other 8bit-encodings in case they do better suit your needs.

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
usepackagelistingsutf8
usepackagefilecontents


begindocument

beginfilecontents*tempfile.tex
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endfilecontents*
lstinputlisting[mathescape=true, inputencoding=utf8/latin1]tempfile.tex

enddocument

enter image description here

edited Aug 11 at 22:04

answered Aug 11 at 21:58

Ulrich Diez

3,005313

add a commentÂ |Â

up vote
11
down vote

Heiko Oberdiek's listingsutf8-package offers a workaround to the problem:

Instead of latin-1, as in the example below, you can use other 8bit-encodings in case they do better suit your needs.

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
usepackagelistingsutf8
usepackagefilecontents


begindocument

beginfilecontents*tempfile.tex
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endfilecontents*
lstinputlisting[mathescape=true, inputencoding=utf8/latin1]tempfile.tex

enddocument

enter image description here

edited Aug 11 at 22:04

answered Aug 11 at 21:58

Ulrich Diez

3,005313

add a commentÂ |Â

up vote
11
down vote

Heiko Oberdiek's listingsutf8-package offers a workaround to the problem:

Instead of latin-1, as in the example below, you can use other 8bit-encodings in case they do better suit your needs.

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
usepackagelistingsutf8
usepackagefilecontents


begindocument

beginfilecontents*tempfile.tex
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endfilecontents*
lstinputlisting[mathescape=true, inputencoding=utf8/latin1]tempfile.tex

enddocument

enter image description here

edited Aug 11 at 22:04

answered Aug 11 at 21:58

Ulrich Diez

3,005313

Heiko Oberdiek's listingsutf8-package offers a workaround to the problem:

Instead of latin-1, as in the example below, you can use other 8bit-encodings in case they do better suit your needs.

documentclass[a4paper,12pt]article
usepackage[utf8]inputenc
usepackage[T1]fontenc
usepackage[portuguese]babel
usepackageamsmath,amssymb
usepackagelistings
usepackagelistingsutf8
usepackagefilecontents


begindocument

beginfilecontents*tempfile.tex
Para todo $B subseteq N$:
 Se as colunas de $A_B$ sÃƒÂ£o linearmente independentes:
 Resolver o sistema $A_B x = b$.
 Se este tiver soluÃƒÂ§ÃƒÂ£o $x$:
 Se $x geq 0$:
 Definir $v in mathbb R^n$ de modo a que $v_B = x$ e $v_Nsetminus B = 0$
 Adicionar $v$ ÃƒÂ  lista de vÃƒÂ©rtices.
endfilecontents*
lstinputlisting[mathescape=true, inputencoding=utf8/latin1]tempfile.tex

enddocument

enter image description here

edited Aug 11 at 22:04

answered Aug 11 at 21:58

Ulrich Diez

3,005313

edited Aug 11 at 22:04

answered Aug 11 at 21:58

Ulrich Diez

3,005313

answered Aug 11 at 21:58

Ulrich Diez

3,005313

answered Aug 11 at 21:58

Ulrich Diez

3,005313

add a commentÂ |Â

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