Output Devanagari (Hindi) from raw unicode using luatex












2















I can get the following code to compile, using luatex, with the Hindi/Devanagari characters correctly printed in the pdf:



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

begin{document}
Here is normal text.
{hindi नमस्ते }
end{document}


However, I'm using a program that outputs the tex and that won't allow me to type the Hindi script into my tex editor; instead, it will only give me the unicode version of the word, "नमस्ते", which is "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>".



How can I get luatex to compile correctly from these raw code characters? What I want to compile (to produce a pdf with the single word "नमस्ते") is something like this:



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

begin{document}
Here is normal text.
{hindi <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> }
end{document}


...but that won't work.










share|improve this question

























  • Can you get your program to output char"0928char"092Echar"0938char"094Dchar"0924 char"0947 instead of <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>?

    – Mico
    2 hours ago






  • 1





    Yes, I could do that! What would the full script then need to look like?

    – lethalSinger
    2 hours ago











  • I'm afraid I cannot answer your question as I don't know which scripting tool you employ. I just posted an answer, though, which creates a Lua function that converts <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> to char"0928char"092Echar"0938char"094Dchar"0924 char"0947.

    – Mico
    2 hours ago
















2















I can get the following code to compile, using luatex, with the Hindi/Devanagari characters correctly printed in the pdf:



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

begin{document}
Here is normal text.
{hindi नमस्ते }
end{document}


However, I'm using a program that outputs the tex and that won't allow me to type the Hindi script into my tex editor; instead, it will only give me the unicode version of the word, "नमस्ते", which is "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>".



How can I get luatex to compile correctly from these raw code characters? What I want to compile (to produce a pdf with the single word "नमस्ते") is something like this:



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

begin{document}
Here is normal text.
{hindi <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> }
end{document}


...but that won't work.










share|improve this question

























  • Can you get your program to output char"0928char"092Echar"0938char"094Dchar"0924 char"0947 instead of <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>?

    – Mico
    2 hours ago






  • 1





    Yes, I could do that! What would the full script then need to look like?

    – lethalSinger
    2 hours ago











  • I'm afraid I cannot answer your question as I don't know which scripting tool you employ. I just posted an answer, though, which creates a Lua function that converts <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> to char"0928char"092Echar"0938char"094Dchar"0924 char"0947.

    – Mico
    2 hours ago














2












2








2








I can get the following code to compile, using luatex, with the Hindi/Devanagari characters correctly printed in the pdf:



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

begin{document}
Here is normal text.
{hindi नमस्ते }
end{document}


However, I'm using a program that outputs the tex and that won't allow me to type the Hindi script into my tex editor; instead, it will only give me the unicode version of the word, "नमस्ते", which is "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>".



How can I get luatex to compile correctly from these raw code characters? What I want to compile (to produce a pdf with the single word "नमस्ते") is something like this:



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

begin{document}
Here is normal text.
{hindi <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> }
end{document}


...but that won't work.










share|improve this question
















I can get the following code to compile, using luatex, with the Hindi/Devanagari characters correctly printed in the pdf:



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

begin{document}
Here is normal text.
{hindi नमस्ते }
end{document}


However, I'm using a program that outputs the tex and that won't allow me to type the Hindi script into my tex editor; instead, it will only give me the unicode version of the word, "नमस्ते", which is "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>".



How can I get luatex to compile correctly from these raw code characters? What I want to compile (to produce a pdf with the single word "नमस्ते") is something like this:



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

begin{document}
Here is normal text.
{hindi <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> }
end{document}


...but that won't work.







fonts luatex languages characters indic






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 46 mins ago









ShreevatsaR

28.2k873102




28.2k873102










asked 3 hours ago









lethalSingerlethalSinger

203




203













  • Can you get your program to output char"0928char"092Echar"0938char"094Dchar"0924 char"0947 instead of <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>?

    – Mico
    2 hours ago






  • 1





    Yes, I could do that! What would the full script then need to look like?

    – lethalSinger
    2 hours ago











  • I'm afraid I cannot answer your question as I don't know which scripting tool you employ. I just posted an answer, though, which creates a Lua function that converts <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> to char"0928char"092Echar"0938char"094Dchar"0924 char"0947.

    – Mico
    2 hours ago



















  • Can you get your program to output char"0928char"092Echar"0938char"094Dchar"0924 char"0947 instead of <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>?

    – Mico
    2 hours ago






  • 1





    Yes, I could do that! What would the full script then need to look like?

    – lethalSinger
    2 hours ago











  • I'm afraid I cannot answer your question as I don't know which scripting tool you employ. I just posted an answer, though, which creates a Lua function that converts <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> to char"0928char"092Echar"0938char"094Dchar"0924 char"0947.

    – Mico
    2 hours ago

















Can you get your program to output char"0928char"092Echar"0938char"094Dchar"0924 char"0947 instead of <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>?

– Mico
2 hours ago





Can you get your program to output char"0928char"092Echar"0938char"094Dchar"0924 char"0947 instead of <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>?

– Mico
2 hours ago




1




1





Yes, I could do that! What would the full script then need to look like?

– lethalSinger
2 hours ago





Yes, I could do that! What would the full script then need to look like?

– lethalSinger
2 hours ago













I'm afraid I cannot answer your question as I don't know which scripting tool you employ. I just posted an answer, though, which creates a Lua function that converts <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> to char"0928char"092Echar"0938char"094Dchar"0924 char"0947.

– Mico
2 hours ago





I'm afraid I cannot answer your question as I don't know which scripting tool you employ. I just posted an answer, though, which creates a Lua function that converts <U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> to char"0928char"092Echar"0938char"094Dchar"0924 char"0947.

– Mico
2 hours ago










1 Answer
1






active

oldest

votes


















3














(added an extra operation in the Lua function 'conv' to address the OP's follow-up request)



Since you're using LuaLaTeX, here's a solution that employs a Lua function to convert strings of the form '<U%+(.-)>' to '\char"%1'; here, %+ represents the literal character + and %1 represents the non-greedy "capture" of the pattern (.-) -- in words: "0 or more characters other than >". In a second step, the Lua function converts any whitespace characters present in the string to explicit (interword) whitespace.



In addition, the code also sets up a LaTeX macro that acts as a front-end for the Lua function. Thus, one may call the Lua function via a conv{<your string here>} directive.



You can either manually encase the sequences of unicode code in conv{...} statements or, depending on how far you can get your program to do the work for you, instruct the scripting program to encase the sequences of unicode code in a conv{...} statements automatically.



enter image description here



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

%%%% -- copy the next eight lines of code to your document --
usepackage{luacode} % for 'luacode' env. and 'luastringN' macro
begin{luacode}


function conv ( s ) 
s = s:gsub ( '<U%+(.-)>' , '\char"%1' )
tex.sprint ( ( s:gsub( '%s+' , '\ ' ) ) )
end


end{luacode}
newcommandconv[1]{directlua{conv(luastringN{#1})}}

begin{document}
Latin-alphabet text.

{hindi नमस्ते }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>} }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>}}
end{document}





share|improve this answer





















  • 1





    This gets incredibly close. The only problem now is with breaks between words, which get ignored. E.g. "नमस्ते राज" (2 words) gets printed as "नमस्तेराज" (1 single word) even though there is the proper space between the unicode characters: "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>". How can I fix the spacing issue?

    – lethalSinger
    2 hours ago






  • 1





    @lethalSinger - Please see the updated answer I just posted. (The solution is to add a second gsub (short for "global substitution") operation.)

    – Mico
    1 hour ago













  • @lethalSinger -- Another way to solve the space issue would have been to change s:gsub( '<U%+(.-)>' , '\char"%1' ) to s:gsub( '<U%+(.-)>' , '\char"%1{}' ); note the insertion of a pair of curly braces. IMNSHO, though, it's preferable -- and more transparent, coding-wise, to avoid coding-related slights of hand such as inserting an "empty TeX group" and to perform two separate gsub operations.

    – Mico
    2 mins ago














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1 Answer
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active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









3














(added an extra operation in the Lua function 'conv' to address the OP's follow-up request)



Since you're using LuaLaTeX, here's a solution that employs a Lua function to convert strings of the form '<U%+(.-)>' to '\char"%1'; here, %+ represents the literal character + and %1 represents the non-greedy "capture" of the pattern (.-) -- in words: "0 or more characters other than >". In a second step, the Lua function converts any whitespace characters present in the string to explicit (interword) whitespace.



In addition, the code also sets up a LaTeX macro that acts as a front-end for the Lua function. Thus, one may call the Lua function via a conv{<your string here>} directive.



You can either manually encase the sequences of unicode code in conv{...} statements or, depending on how far you can get your program to do the work for you, instruct the scripting program to encase the sequences of unicode code in a conv{...} statements automatically.



enter image description here



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

%%%% -- copy the next eight lines of code to your document --
usepackage{luacode} % for 'luacode' env. and 'luastringN' macro
begin{luacode}


function conv ( s ) 
s = s:gsub ( '<U%+(.-)>' , '\char"%1' )
tex.sprint ( ( s:gsub( '%s+' , '\ ' ) ) )
end


end{luacode}
newcommandconv[1]{directlua{conv(luastringN{#1})}}

begin{document}
Latin-alphabet text.

{hindi नमस्ते }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>} }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>}}
end{document}





share|improve this answer





















  • 1





    This gets incredibly close. The only problem now is with breaks between words, which get ignored. E.g. "नमस्ते राज" (2 words) gets printed as "नमस्तेराज" (1 single word) even though there is the proper space between the unicode characters: "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>". How can I fix the spacing issue?

    – lethalSinger
    2 hours ago






  • 1





    @lethalSinger - Please see the updated answer I just posted. (The solution is to add a second gsub (short for "global substitution") operation.)

    – Mico
    1 hour ago













  • @lethalSinger -- Another way to solve the space issue would have been to change s:gsub( '<U%+(.-)>' , '\char"%1' ) to s:gsub( '<U%+(.-)>' , '\char"%1{}' ); note the insertion of a pair of curly braces. IMNSHO, though, it's preferable -- and more transparent, coding-wise, to avoid coding-related slights of hand such as inserting an "empty TeX group" and to perform two separate gsub operations.

    – Mico
    2 mins ago


















3














(added an extra operation in the Lua function 'conv' to address the OP's follow-up request)



Since you're using LuaLaTeX, here's a solution that employs a Lua function to convert strings of the form '<U%+(.-)>' to '\char"%1'; here, %+ represents the literal character + and %1 represents the non-greedy "capture" of the pattern (.-) -- in words: "0 or more characters other than >". In a second step, the Lua function converts any whitespace characters present in the string to explicit (interword) whitespace.



In addition, the code also sets up a LaTeX macro that acts as a front-end for the Lua function. Thus, one may call the Lua function via a conv{<your string here>} directive.



You can either manually encase the sequences of unicode code in conv{...} statements or, depending on how far you can get your program to do the work for you, instruct the scripting program to encase the sequences of unicode code in a conv{...} statements automatically.



enter image description here



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

%%%% -- copy the next eight lines of code to your document --
usepackage{luacode} % for 'luacode' env. and 'luastringN' macro
begin{luacode}


function conv ( s ) 
s = s:gsub ( '<U%+(.-)>' , '\char"%1' )
tex.sprint ( ( s:gsub( '%s+' , '\ ' ) ) )
end


end{luacode}
newcommandconv[1]{directlua{conv(luastringN{#1})}}

begin{document}
Latin-alphabet text.

{hindi नमस्ते }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>} }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>}}
end{document}





share|improve this answer





















  • 1





    This gets incredibly close. The only problem now is with breaks between words, which get ignored. E.g. "नमस्ते राज" (2 words) gets printed as "नमस्तेराज" (1 single word) even though there is the proper space between the unicode characters: "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>". How can I fix the spacing issue?

    – lethalSinger
    2 hours ago






  • 1





    @lethalSinger - Please see the updated answer I just posted. (The solution is to add a second gsub (short for "global substitution") operation.)

    – Mico
    1 hour ago













  • @lethalSinger -- Another way to solve the space issue would have been to change s:gsub( '<U%+(.-)>' , '\char"%1' ) to s:gsub( '<U%+(.-)>' , '\char"%1{}' ); note the insertion of a pair of curly braces. IMNSHO, though, it's preferable -- and more transparent, coding-wise, to avoid coding-related slights of hand such as inserting an "empty TeX group" and to perform two separate gsub operations.

    – Mico
    2 mins ago
















3












3








3







(added an extra operation in the Lua function 'conv' to address the OP's follow-up request)



Since you're using LuaLaTeX, here's a solution that employs a Lua function to convert strings of the form '<U%+(.-)>' to '\char"%1'; here, %+ represents the literal character + and %1 represents the non-greedy "capture" of the pattern (.-) -- in words: "0 or more characters other than >". In a second step, the Lua function converts any whitespace characters present in the string to explicit (interword) whitespace.



In addition, the code also sets up a LaTeX macro that acts as a front-end for the Lua function. Thus, one may call the Lua function via a conv{<your string here>} directive.



You can either manually encase the sequences of unicode code in conv{...} statements or, depending on how far you can get your program to do the work for you, instruct the scripting program to encase the sequences of unicode code in a conv{...} statements automatically.



enter image description here



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

%%%% -- copy the next eight lines of code to your document --
usepackage{luacode} % for 'luacode' env. and 'luastringN' macro
begin{luacode}


function conv ( s ) 
s = s:gsub ( '<U%+(.-)>' , '\char"%1' )
tex.sprint ( ( s:gsub( '%s+' , '\ ' ) ) )
end


end{luacode}
newcommandconv[1]{directlua{conv(luastringN{#1})}}

begin{document}
Latin-alphabet text.

{hindi नमस्ते }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>} }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>}}
end{document}





share|improve this answer















(added an extra operation in the Lua function 'conv' to address the OP's follow-up request)



Since you're using LuaLaTeX, here's a solution that employs a Lua function to convert strings of the form '<U%+(.-)>' to '\char"%1'; here, %+ represents the literal character + and %1 represents the non-greedy "capture" of the pattern (.-) -- in words: "0 or more characters other than >". In a second step, the Lua function converts any whitespace characters present in the string to explicit (interword) whitespace.



In addition, the code also sets up a LaTeX macro that acts as a front-end for the Lua function. Thus, one may call the Lua function via a conv{<your string here>} directive.



You can either manually encase the sequences of unicode code in conv{...} statements or, depending on how far you can get your program to do the work for you, instruct the scripting program to encase the sequences of unicode code in a conv{...} statements automatically.



enter image description here



documentclass{article}
usepackage{fontspec}
setmainfont{Times New Roman}
newfontscript{Devanagari}{deva,dev2}
newfontface{hindi}[Script=Devanagari]{Lohit-Devanagari.ttf}

%%%% -- copy the next eight lines of code to your document --
usepackage{luacode} % for 'luacode' env. and 'luastringN' macro
begin{luacode}


function conv ( s ) 
s = s:gsub ( '<U%+(.-)>' , '\char"%1' )
tex.sprint ( ( s:gsub( '%s+' , '\ ' ) ) )
end


end{luacode}
newcommandconv[1]{directlua{conv(luastringN{#1})}}

begin{document}
Latin-alphabet text.

{hindi नमस्ते }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947>} }

{hindi conv{<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>}}
end{document}






share|improve this answer














share|improve this answer



share|improve this answer








edited 57 mins ago

























answered 2 hours ago









MicoMico

287k32393781




287k32393781








  • 1





    This gets incredibly close. The only problem now is with breaks between words, which get ignored. E.g. "नमस्ते राज" (2 words) gets printed as "नमस्तेराज" (1 single word) even though there is the proper space between the unicode characters: "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>". How can I fix the spacing issue?

    – lethalSinger
    2 hours ago






  • 1





    @lethalSinger - Please see the updated answer I just posted. (The solution is to add a second gsub (short for "global substitution") operation.)

    – Mico
    1 hour ago













  • @lethalSinger -- Another way to solve the space issue would have been to change s:gsub( '<U%+(.-)>' , '\char"%1' ) to s:gsub( '<U%+(.-)>' , '\char"%1{}' ); note the insertion of a pair of curly braces. IMNSHO, though, it's preferable -- and more transparent, coding-wise, to avoid coding-related slights of hand such as inserting an "empty TeX group" and to perform two separate gsub operations.

    – Mico
    2 mins ago
















  • 1





    This gets incredibly close. The only problem now is with breaks between words, which get ignored. E.g. "नमस्ते राज" (2 words) gets printed as "नमस्तेराज" (1 single word) even though there is the proper space between the unicode characters: "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>". How can I fix the spacing issue?

    – lethalSinger
    2 hours ago






  • 1





    @lethalSinger - Please see the updated answer I just posted. (The solution is to add a second gsub (short for "global substitution") operation.)

    – Mico
    1 hour ago













  • @lethalSinger -- Another way to solve the space issue would have been to change s:gsub( '<U%+(.-)>' , '\char"%1' ) to s:gsub( '<U%+(.-)>' , '\char"%1{}' ); note the insertion of a pair of curly braces. IMNSHO, though, it's preferable -- and more transparent, coding-wise, to avoid coding-related slights of hand such as inserting an "empty TeX group" and to perform two separate gsub operations.

    – Mico
    2 mins ago










1




1





This gets incredibly close. The only problem now is with breaks between words, which get ignored. E.g. "नमस्ते राज" (2 words) gets printed as "नमस्तेराज" (1 single word) even though there is the proper space between the unicode characters: "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>". How can I fix the spacing issue?

– lethalSinger
2 hours ago





This gets incredibly close. The only problem now is with breaks between words, which get ignored. E.g. "नमस्ते राज" (2 words) gets printed as "नमस्तेराज" (1 single word) even though there is the proper space between the unicode characters: "<U+0928><U+092E><U+0938><U+094D><U+0924><U+0947> <U+0930><U+093E><U+091C>". How can I fix the spacing issue?

– lethalSinger
2 hours ago




1




1





@lethalSinger - Please see the updated answer I just posted. (The solution is to add a second gsub (short for "global substitution") operation.)

– Mico
1 hour ago







@lethalSinger - Please see the updated answer I just posted. (The solution is to add a second gsub (short for "global substitution") operation.)

– Mico
1 hour ago















@lethalSinger -- Another way to solve the space issue would have been to change s:gsub( '<U%+(.-)>' , '\char"%1' ) to s:gsub( '<U%+(.-)>' , '\char"%1{}' ); note the insertion of a pair of curly braces. IMNSHO, though, it's preferable -- and more transparent, coding-wise, to avoid coding-related slights of hand such as inserting an "empty TeX group" and to perform two separate gsub operations.

– Mico
2 mins ago







@lethalSinger -- Another way to solve the space issue would have been to change s:gsub( '<U%+(.-)>' , '\char"%1' ) to s:gsub( '<U%+(.-)>' , '\char"%1{}' ); note the insertion of a pair of curly braces. IMNSHO, though, it's preferable -- and more transparent, coding-wise, to avoid coding-related slights of hand such as inserting an "empty TeX group" and to perform two separate gsub operations.

– Mico
2 mins ago




















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