Is it possible to write a class file that loops over the documentbody?
2
What I would like to achieve is a repeat.cls such that I could write a .tex file
documentclass{repeat}
begin{document}
foobar
end{document}
and then the document would contain 'foobar' a certain number of times.
Is this possible? I tried to combine loop or foreach with the AtBeginDocument and AtEndDocument, but from what I know now, that approach cannot work as TeX would never really "see" the end{document}.
tex-core documentclass-writing
edited Dec 11 '18 at 18:26
Stefan Pinnow
19.4k83175
asked Dec 11 '18 at 18:17
CFrei
132
add a comment |
2
What I would like to achieve is a repeat.cls such that I could write a .tex file
documentclass{repeat}
begin{document}
foobar
end{document}
and then the document would contain 'foobar' a certain number of times.
Is this possible? I tried to combine loop or foreach with the AtBeginDocument and AtEndDocument, but from what I know now, that approach cannot work as TeX would never really "see" the end{document}.
tex-core documentclass-writing
edited Dec 11 '18 at 18:26
Stefan Pinnow
19.4k83175
asked Dec 11 '18 at 18:17
CFrei
132
Probably not that way. You'd need a macro which would scan the text, but this macro can't "exit" the class file. You'd need a commandmyWeirdLoopafter thedocumentclass. It would still mess up you document, mainly anything that contains catcode changes. What do you want to achieve exactly?
– Phelype Oleinik
Dec 11 '18 at 18:22
1
@PhelypeOleinik could we save the meaning of document (begin and end) and the combine with environ. Plus a macro in the preamble to specify the number of repetitions.
– daleif
Dec 11 '18 at 18:29
1
@daleif Ooh, with egeg's answer I understood it. Sometimes I need a drawing to understand things :P
– Phelype Oleinik
Dec 11 '18 at 18:38
add a comment |
2
2
2
What I would like to achieve is a repeat.cls such that I could write a .tex file
documentclass{repeat}
begin{document}
foobar
end{document}
and then the document would contain 'foobar' a certain number of times.
Is this possible? I tried to combine loop or foreach with the AtBeginDocument and AtEndDocument, but from what I know now, that approach cannot work as TeX would never really "see" the end{document}.
tex-core documentclass-writing
edited Dec 11 '18 at 18:26
Stefan Pinnow
19.4k83175
asked Dec 11 '18 at 18:17
CFrei
132
What I would like to achieve is a repeat.cls such that I could write a .tex file
documentclass{repeat}
begin{document}
foobar
end{document}
and then the document would contain 'foobar' a certain number of times.
Is this possible? I tried to combine loop or foreach with the AtBeginDocument and AtEndDocument, but from what I know now, that approach cannot work as TeX would never really "see" the end{document}.
tex-core documentclass-writing
tex-core documentclass-writing
edited Dec 11 '18 at 18:26
Stefan Pinnow
19.4k83175
asked Dec 11 '18 at 18:17
CFrei
132
edited Dec 11 '18 at 18:26
Stefan Pinnow
19.4k83175
asked Dec 11 '18 at 18:17
CFrei
132
edited Dec 11 '18 at 18:26
Stefan Pinnow
19.4k83175
edited Dec 11 '18 at 18:26
Stefan Pinnow
19.4k83175
edited Dec 11 '18 at 18:26
Stefan Pinnow
19.4k83175
19.4k83175
asked Dec 11 '18 at 18:17
CFrei
132
asked Dec 11 '18 at 18:17
CFrei
132
asked Dec 11 '18 at 18:17
CFrei
132
132
Probably not that way. You'd need a macro which would scan the text, but this macro can't "exit" the class file. You'd need a commandmyWeirdLoopafter thedocumentclass. It would still mess up you document, mainly anything that contains catcode changes. What do you want to achieve exactly?
– Phelype Oleinik
Dec 11 '18 at 18:22
1
@PhelypeOleinik could we save the meaning of document (begin and end) and the combine with environ. Plus a macro in the preamble to specify the number of repetitions.
– daleif
Dec 11 '18 at 18:29
1
@daleif Ooh, with egeg's answer I understood it. Sometimes I need a drawing to understand things :P
– Phelype Oleinik
Dec 11 '18 at 18:38
add a comment |
Probably not that way. You'd need a macro which would scan the text, but this macro can't "exit" the class file. You'd need a commandmyWeirdLoopafter thedocumentclass. It would still mess up you document, mainly anything that contains catcode changes. What do you want to achieve exactly?
– Phelype Oleinik
Dec 11 '18 at 18:22
1
@PhelypeOleinik could we save the meaning of document (begin and end) and the combine with environ. Plus a macro in the preamble to specify the number of repetitions.
– daleif
Dec 11 '18 at 18:29
1
@daleif Ooh, with egeg's answer I understood it. Sometimes I need a drawing to understand things :P
– Phelype Oleinik
Dec 11 '18 at 18:38
Probably not that way. You'd need a macro which would scan the text, but this macro can't "exit" the class file. You'd need a command
myWeirdLoop after the documentclass. It would still mess up you document, mainly anything that contains catcode changes. What do you want to achieve exactly?– Phelype Oleinik
Dec 11 '18 at 18:22
Probably not that way. You'd need a macro which would scan the text, but this macro can't "exit" the class file. You'd need a command
myWeirdLoop after the documentclass. It would still mess up you document, mainly anything that contains catcode changes. What do you want to achieve exactly?– Phelype Oleinik
Dec 11 '18 at 18:22
1
1
@PhelypeOleinik could we save the meaning of document (begin and end) and the combine with environ. Plus a macro in the preamble to specify the number of repetitions.
– daleif
Dec 11 '18 at 18:29
@PhelypeOleinik could we save the meaning of document (begin and end) and the combine with environ. Plus a macro in the preamble to specify the number of repetitions.
– daleif
Dec 11 '18 at 18:29
1
1
@daleif Ooh, with egeg's answer I understood it. Sometimes I need a drawing to understand things :P
– Phelype Oleinik
Dec 11 '18 at 18:38
@daleif Ooh, with egeg's answer I understood it. Sometimes I need a drawing to understand things :P
– Phelype Oleinik
Dec 11 '18 at 18:38
add a comment |
1 Answer
1
active
oldest
votes
4
Proof of concept follows. Don't do it at home.
repeat.cls
ProvidesClass{repeat}
defrepetitions{5} % default
DeclareOption*{edefrepetitions{CurrentOption}}
ProcessOptionsrelax
LoadClass{article}
RequirePackage{environ,xparse}
letlatexdocumentdocument
letendlatexdocumentenddocument
ExplSyntaxOn
RenewEnviron{document}{
tl_gset_eq:NN g_tmpa_tl BODY
latexdocument
prg_replicate:nn { repetitions } { g_tmpa_tl par }
endlatexdocument
}
ExplSyntaxOff
test.tex
documentclass[20]{repeat}
begin{document}
foobar
end{document}
Output
answered Dec 11 '18 at 18:28
egreg
709k8618823165
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
4
Proof of concept follows. Don't do it at home.
repeat.cls
ProvidesClass{repeat}
defrepetitions{5} % default
DeclareOption*{edefrepetitions{CurrentOption}}
ProcessOptionsrelax
LoadClass{article}
RequirePackage{environ,xparse}
letlatexdocumentdocument
letendlatexdocumentenddocument
ExplSyntaxOn
RenewEnviron{document}{
tl_gset_eq:NN g_tmpa_tl BODY
latexdocument
prg_replicate:nn { repetitions } { g_tmpa_tl par }
endlatexdocument
}
ExplSyntaxOff
test.tex
documentclass[20]{repeat}
begin{document}
foobar
end{document}
Output
answered Dec 11 '18 at 18:28
egreg
709k8618823165
add a comment |
4
Proof of concept follows. Don't do it at home.
repeat.cls
ProvidesClass{repeat}
defrepetitions{5} % default
DeclareOption*{edefrepetitions{CurrentOption}}
ProcessOptionsrelax
LoadClass{article}
RequirePackage{environ,xparse}
letlatexdocumentdocument
letendlatexdocumentenddocument
ExplSyntaxOn
RenewEnviron{document}{
tl_gset_eq:NN g_tmpa_tl BODY
latexdocument
prg_replicate:nn { repetitions } { g_tmpa_tl par }
endlatexdocument
}
ExplSyntaxOff
test.tex
documentclass[20]{repeat}
begin{document}
foobar
end{document}
Output
answered Dec 11 '18 at 18:28
egreg
709k8618823165
add a comment |
4
4
4
Proof of concept follows. Don't do it at home.
repeat.cls
ProvidesClass{repeat}
defrepetitions{5} % default
DeclareOption*{edefrepetitions{CurrentOption}}
ProcessOptionsrelax
LoadClass{article}
RequirePackage{environ,xparse}
letlatexdocumentdocument
letendlatexdocumentenddocument
ExplSyntaxOn
RenewEnviron{document}{
tl_gset_eq:NN g_tmpa_tl BODY
latexdocument
prg_replicate:nn { repetitions } { g_tmpa_tl par }
endlatexdocument
}
ExplSyntaxOff
test.tex
documentclass[20]{repeat}
begin{document}
foobar
end{document}
Output
answered Dec 11 '18 at 18:28
egreg
709k8618823165
Proof of concept follows. Don't do it at home.
repeat.cls
ProvidesClass{repeat}
defrepetitions{5} % default
DeclareOption*{edefrepetitions{CurrentOption}}
ProcessOptionsrelax
LoadClass{article}
RequirePackage{environ,xparse}
letlatexdocumentdocument
letendlatexdocumentenddocument
ExplSyntaxOn
RenewEnviron{document}{
tl_gset_eq:NN g_tmpa_tl BODY
latexdocument
prg_replicate:nn { repetitions } { g_tmpa_tl par }
endlatexdocument
}
ExplSyntaxOff
test.tex
documentclass[20]{repeat}
begin{document}
foobar
end{document}
Output
answered Dec 11 '18 at 18:28
egreg
709k8618823165
answered Dec 11 '18 at 18:28
egreg
709k8618823165
answered Dec 11 '18 at 18:28
egreg
709k8618823165
answered Dec 11 '18 at 18:28
egreg
709k8618823165
709k8618823165
add a comment |
add a comment |
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Probably not that way. You'd need a macro which would scan the text, but this macro can't "exit" the class file. You'd need a command
myWeirdLoopafter thedocumentclass. It would still mess up you document, mainly anything that contains catcode changes. What do you want to achieve exactly?– Phelype Oleinik
Dec 11 '18 at 18:22
1
@PhelypeOleinik could we save the meaning of document (begin and end) and the combine with environ. Plus a macro in the preamble to specify the number of repetitions.
– daleif
Dec 11 '18 at 18:29
1
@daleif Ooh, with egeg's answer I understood it. Sometimes I need a drawing to understand things :P
– Phelype Oleinik
Dec 11 '18 at 18:38