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xstring fails to compare text containing \
choose from a list with xstringxstring macros inside foreachxstring substitution with font commands fails in errorincludegraphics and xstring packageUsing xstring with translatorXstring Problem with ŞLaTeX xstring StrCut with macrosCompare etocname with stringspecial charactor handling in xstringProblem with xstring: IfEqCase case falls thru
5
Using xstring in order to compare text containing \ produces a compilation error. Here is my MWE:
documentclassreport
usepackagexstring
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
IfStrEqprintExample
void
printExample
endtitlepage
begindocument
enddocument
The first error message is:
! Undefined control sequence.
->let reserved@e
relax let reserved@f relax @ifstar {let reserv...
l.15 begindocument
The Example command defined here should accept \. How can I get this working? The solution should take into account that the (La)TeX distribution version used here is the one included in Linux Mint 18.3, i.e. TeX Live 2017/Debian, which cannot be changed.
xstring
asked May 22 at 9:16
Jérôme ChampavèreJérôme Champavère
535
add a comment |
5
Using xstring in order to compare text containing \ produces a compilation error. Here is my MWE:
documentclassreport
usepackagexstring
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
IfStrEqprintExample
void
printExample
endtitlepage
begindocument
enddocument
The first error message is:
! Undefined control sequence.
->let reserved@e
relax let reserved@f relax @ifstar {let reserv...
l.15 begindocument
The Example command defined here should accept \. How can I get this working? The solution should take into account that the (La)TeX distribution version used here is the one included in Linux Mint 18.3, i.e. TeX Live 2017/Debian, which cannot be changed.
xstring
asked May 22 at 9:16
Jérôme ChampavèreJérôme Champavère
535
What is the expected output. You could try usingnoexpandarg, but I am not sure what the code is supposed to do.
– Peter Grill
May 22 at 9:23
If you are just testing whether a macro is empty or not, then the void tests frometoolboxmight be better, that is what I normally use. But as Peter mentions, it is not quite clear what you are trying to do.
– daleif
May 22 at 9:52
1
It works withxifthenusing this test:ifthenelseequalprintExamplevoidprintExample
– frougon
May 22 at 9:57
Various tests frometoolbox(ifdefvoid,ifstremptyorifblank) do not work with TeX Live 2017/Debian (but they work for current TeX Live). Commandifthenelsefromxifthenworks well, indeed (even if, from a "logical" perspective, I would expect a command whose argument is directly a string, not a boolean). Can someone explain why\breaksIfStrEqand if there is a way (or not) to use it?
– Jérôme Champavère
May 22 at 19:52
I addedcenteringin environmenttitlepagebecause it causes an error (! Incomplete iffalse; all text was ignored after line …) whenifthenelsetest is used. An other error is raised withcenterenvironment (! Use of @item doesn't match its definition.). In both cases, one needs to useprotect\in order to get it working as expected.
– Jérôme Champavère
May 22 at 20:32
add a comment |
5
5
5
Using xstring in order to compare text containing \ produces a compilation error. Here is my MWE:
documentclassreport
usepackagexstring
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
IfStrEqprintExample
void
printExample
endtitlepage
begindocument
enddocument
The first error message is:
! Undefined control sequence.
->let reserved@e
relax let reserved@f relax @ifstar {let reserv...
l.15 begindocument
The Example command defined here should accept \. How can I get this working? The solution should take into account that the (La)TeX distribution version used here is the one included in Linux Mint 18.3, i.e. TeX Live 2017/Debian, which cannot be changed.
xstring
asked May 22 at 9:16
Jérôme ChampavèreJérôme Champavère
535
Using xstring in order to compare text containing \ produces a compilation error. Here is my MWE:
documentclassreport
usepackagexstring
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
IfStrEqprintExample
void
printExample
endtitlepage
begindocument
enddocument
The first error message is:
! Undefined control sequence.
->let reserved@e
relax let reserved@f relax @ifstar {let reserv...
l.15 begindocument
The Example command defined here should accept \. How can I get this working? The solution should take into account that the (La)TeX distribution version used here is the one included in Linux Mint 18.3, i.e. TeX Live 2017/Debian, which cannot be changed.
xstring
xstring
asked May 22 at 9:16
Jérôme ChampavèreJérôme Champavère
535
asked May 22 at 9:16
Jérôme ChampavèreJérôme Champavère
535
edited May 22 at 20:22
Jérôme Champavère
asked May 22 at 9:16
Jérôme ChampavèreJérôme Champavère
535
asked May 22 at 9:16
Jérôme ChampavèreJérôme Champavère
535
asked May 22 at 9:16
Jérôme ChampavèreJérôme Champavère
535
535
What is the expected output. You could try usingnoexpandarg, but I am not sure what the code is supposed to do.
– Peter Grill
May 22 at 9:23
If you are just testing whether a macro is empty or not, then the void tests frometoolboxmight be better, that is what I normally use. But as Peter mentions, it is not quite clear what you are trying to do.
– daleif
May 22 at 9:52
1
It works withxifthenusing this test:ifthenelseequalprintExamplevoidprintExample
– frougon
May 22 at 9:57
Various tests frometoolbox(ifdefvoid,ifstremptyorifblank) do not work with TeX Live 2017/Debian (but they work for current TeX Live). Commandifthenelsefromxifthenworks well, indeed (even if, from a "logical" perspective, I would expect a command whose argument is directly a string, not a boolean). Can someone explain why\breaksIfStrEqand if there is a way (or not) to use it?
– Jérôme Champavère
May 22 at 19:52
I addedcenteringin environmenttitlepagebecause it causes an error (! Incomplete iffalse; all text was ignored after line …) whenifthenelsetest is used. An other error is raised withcenterenvironment (! Use of @item doesn't match its definition.). In both cases, one needs to useprotect\in order to get it working as expected.
– Jérôme Champavère
May 22 at 20:32
add a comment |
What is the expected output. You could try usingnoexpandarg, but I am not sure what the code is supposed to do.
– Peter Grill
May 22 at 9:23
If you are just testing whether a macro is empty or not, then the void tests frometoolboxmight be better, that is what I normally use. But as Peter mentions, it is not quite clear what you are trying to do.
– daleif
May 22 at 9:52
1
It works withxifthenusing this test:ifthenelseequalprintExamplevoidprintExample
– frougon
May 22 at 9:57
Various tests frometoolbox(ifdefvoid,ifstremptyorifblank) do not work with TeX Live 2017/Debian (but they work for current TeX Live). Commandifthenelsefromxifthenworks well, indeed (even if, from a "logical" perspective, I would expect a command whose argument is directly a string, not a boolean). Can someone explain why\breaksIfStrEqand if there is a way (or not) to use it?
– Jérôme Champavère
May 22 at 19:52
I addedcenteringin environmenttitlepagebecause it causes an error (! Incomplete iffalse; all text was ignored after line …) whenifthenelsetest is used. An other error is raised withcenterenvironment (! Use of @item doesn't match its definition.). In both cases, one needs to useprotect\in order to get it working as expected.
– Jérôme Champavère
May 22 at 20:32
What is the expected output. You could try using
noexpandarg, but I am not sure what the code is supposed to do.– Peter Grill
May 22 at 9:23
What is the expected output. You could try using
noexpandarg, but I am not sure what the code is supposed to do.– Peter Grill
May 22 at 9:23
If you are just testing whether a macro is empty or not, then the void tests from
etoolbox might be better, that is what I normally use. But as Peter mentions, it is not quite clear what you are trying to do.– daleif
May 22 at 9:52
If you are just testing whether a macro is empty or not, then the void tests from
etoolbox might be better, that is what I normally use. But as Peter mentions, it is not quite clear what you are trying to do.– daleif
May 22 at 9:52
1
1
It works with
xifthen using this test: ifthenelseequalprintExamplevoidprintExample– frougon
May 22 at 9:57
It works with
xifthen using this test: ifthenelseequalprintExamplevoidprintExample– frougon
May 22 at 9:57
Various tests from
etoolbox (ifdefvoid, ifstrempty or ifblank) do not work with TeX Live 2017/Debian (but they work for current TeX Live). Command ifthenelse from xifthen works well, indeed (even if, from a "logical" perspective, I would expect a command whose argument is directly a string, not a boolean). Can someone explain why \ breaks IfStrEq and if there is a way (or not) to use it?– Jérôme Champavère
May 22 at 19:52
Various tests from
etoolbox (ifdefvoid, ifstrempty or ifblank) do not work with TeX Live 2017/Debian (but they work for current TeX Live). Command ifthenelse from xifthen works well, indeed (even if, from a "logical" perspective, I would expect a command whose argument is directly a string, not a boolean). Can someone explain why \ breaks IfStrEq and if there is a way (or not) to use it?– Jérôme Champavère
May 22 at 19:52
I added
centering in environment titlepage because it causes an error (! Incomplete iffalse; all text was ignored after line …) when ifthenelse test is used. An other error is raised with center environment (! Use of @item doesn't match its definition.). In both cases, one needs to use protect\ in order to get it working as expected.– Jérôme Champavère
May 22 at 20:32
I added
centering in environment titlepage because it causes an error (! Incomplete iffalse; all text was ignored after line …) when ifthenelse test is used. An other error is raised with center environment (! Use of @item doesn't match its definition.). In both cases, one needs to use protect\ in order to get it working as expected.– Jérôme Champavère
May 22 at 20:32
add a comment |
2 Answers
2
active
oldest
votes
4
If you need only a test for an empty argument you can use ifx:
documentclassreport
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Example
AtBeginDocument%
begintitlepage
expandafterifxprintExampleempty
voidelseprintExamplefi
endtitlepage
begindocument
Examplenot \ void
expandafterifxprintExampleempty
voidelseprintExamplefi
enddocument
answered May 22 at 9:58
Red-CloudRed-Cloud
2,973114
This might be an option. Is it possible to write a 3-parameter command, e.g.ifstringempty, from theexpandaftertoficode, where #1 would be the tested string command (hereprintExample), #2 for true (here "void"), and #3 for false (here the secondprintExample), in order to simplify the code? I triednewcommandifstringempty[3]expandafterifx#1empty #2else#3fi, without success.
– Jérôme Champavère
May 22 at 21:01
add a comment |
2
I guess you have other macros such as Example and printExample.
You can define a macro that does the work getting as input the desired storage bin.
documentclassreport
makeatletter
newcommandvoid@or@print[1]%
ifrelaxdetokenizeexpandafter#1relax
void%
else
#1%
fi
defprintExamplevoid@or@print@Example
defExample#1def@Example#1
Example % initialize
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
printExample
endtitlepage
begindocument
enddocument
A more general implementation:
makeatletter
newcommandprint@conditionally[3]%
ifrelaxdetokenizeexpandafter#1relax
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
#2#3%
defprintExampleprint@conditionally@Examplevoid@Example
defExample#1def@Example#1
Example % initialize
makeatother
answered May 22 at 21:14
egregegreg
744k8919493287
Yes, there are few other macros asExample, that should be filled by the template's user (whileprintExample's are in some way hidden). But the true/false outputs depend on the macro, i.e., some show a "should-be-filled-message" in the PDF documents if empty, other are optional, and when correctly filled their formattings mostly differ. This is why I need a real if-then-else statement.
– Jérôme Champavère
May 23 at 10:10
@JérômeChampavère I added a more general implementation
– egreg
May 23 at 10:57
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
4
If you need only a test for an empty argument you can use ifx:
documentclassreport
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Example
AtBeginDocument%
begintitlepage
expandafterifxprintExampleempty
voidelseprintExamplefi
endtitlepage
begindocument
Examplenot \ void
expandafterifxprintExampleempty
voidelseprintExamplefi
enddocument
answered May 22 at 9:58
Red-CloudRed-Cloud
2,973114
This might be an option. Is it possible to write a 3-parameter command, e.g.ifstringempty, from theexpandaftertoficode, where #1 would be the tested string command (hereprintExample), #2 for true (here "void"), and #3 for false (here the secondprintExample), in order to simplify the code? I triednewcommandifstringempty[3]expandafterifx#1empty #2else#3fi, without success.
– Jérôme Champavère
May 22 at 21:01
add a comment |
4
If you need only a test for an empty argument you can use ifx:
documentclassreport
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Example
AtBeginDocument%
begintitlepage
expandafterifxprintExampleempty
voidelseprintExamplefi
endtitlepage
begindocument
Examplenot \ void
expandafterifxprintExampleempty
voidelseprintExamplefi
enddocument
answered May 22 at 9:58
Red-CloudRed-Cloud
2,973114
This might be an option. Is it possible to write a 3-parameter command, e.g.ifstringempty, from theexpandaftertoficode, where #1 would be the tested string command (hereprintExample), #2 for true (here "void"), and #3 for false (here the secondprintExample), in order to simplify the code? I triednewcommandifstringempty[3]expandafterifx#1empty #2else#3fi, without success.
– Jérôme Champavère
May 22 at 21:01
add a comment |
4
4
4
If you need only a test for an empty argument you can use ifx:
documentclassreport
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Example
AtBeginDocument%
begintitlepage
expandafterifxprintExampleempty
voidelseprintExamplefi
endtitlepage
begindocument
Examplenot \ void
expandafterifxprintExampleempty
voidelseprintExamplefi
enddocument
answered May 22 at 9:58
Red-CloudRed-Cloud
2,973114
If you need only a test for an empty argument you can use ifx:
documentclassreport
makeatletter
defExample#1def@Example#1
defprintExample@Example
makeatother
Example
AtBeginDocument%
begintitlepage
expandafterifxprintExampleempty
voidelseprintExamplefi
endtitlepage
begindocument
Examplenot \ void
expandafterifxprintExampleempty
voidelseprintExamplefi
enddocument
answered May 22 at 9:58
Red-CloudRed-Cloud
2,973114
answered May 22 at 9:58
Red-CloudRed-Cloud
2,973114
answered May 22 at 9:58
Red-CloudRed-Cloud
2,973114
answered May 22 at 9:58
Red-CloudRed-Cloud
2,973114
2,973114
This might be an option. Is it possible to write a 3-parameter command, e.g.ifstringempty, from theexpandaftertoficode, where #1 would be the tested string command (hereprintExample), #2 for true (here "void"), and #3 for false (here the secondprintExample), in order to simplify the code? I triednewcommandifstringempty[3]expandafterifx#1empty #2else#3fi, without success.
– Jérôme Champavère
May 22 at 21:01
add a comment |
This might be an option. Is it possible to write a 3-parameter command, e.g.ifstringempty, from theexpandaftertoficode, where #1 would be the tested string command (hereprintExample), #2 for true (here "void"), and #3 for false (here the secondprintExample), in order to simplify the code? I triednewcommandifstringempty[3]expandafterifx#1empty #2else#3fi, without success.
– Jérôme Champavère
May 22 at 21:01
This might be an option. Is it possible to write a 3-parameter command, e.g.
ifstringempty, from the expandafter to fi code, where #1 would be the tested string command (here printExample), #2 for true (here "void"), and #3 for false (here the second printExample), in order to simplify the code? I tried newcommandifstringempty[3]expandafterifx#1empty #2else#3fi, without success.– Jérôme Champavère
May 22 at 21:01
This might be an option. Is it possible to write a 3-parameter command, e.g.
ifstringempty, from the expandafter to fi code, where #1 would be the tested string command (here printExample), #2 for true (here "void"), and #3 for false (here the second printExample), in order to simplify the code? I tried newcommandifstringempty[3]expandafterifx#1empty #2else#3fi, without success.– Jérôme Champavère
May 22 at 21:01
add a comment |
2
I guess you have other macros such as Example and printExample.
You can define a macro that does the work getting as input the desired storage bin.
documentclassreport
makeatletter
newcommandvoid@or@print[1]%
ifrelaxdetokenizeexpandafter#1relax
void%
else
#1%
fi
defprintExamplevoid@or@print@Example
defExample#1def@Example#1
Example % initialize
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
printExample
endtitlepage
begindocument
enddocument
A more general implementation:
makeatletter
newcommandprint@conditionally[3]%
ifrelaxdetokenizeexpandafter#1relax
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
#2#3%
defprintExampleprint@conditionally@Examplevoid@Example
defExample#1def@Example#1
Example % initialize
makeatother
answered May 22 at 21:14
egregegreg
744k8919493287
Yes, there are few other macros asExample, that should be filled by the template's user (whileprintExample's are in some way hidden). But the true/false outputs depend on the macro, i.e., some show a "should-be-filled-message" in the PDF documents if empty, other are optional, and when correctly filled their formattings mostly differ. This is why I need a real if-then-else statement.
– Jérôme Champavère
May 23 at 10:10
@JérômeChampavère I added a more general implementation
– egreg
May 23 at 10:57
add a comment |
2
I guess you have other macros such as Example and printExample.
You can define a macro that does the work getting as input the desired storage bin.
documentclassreport
makeatletter
newcommandvoid@or@print[1]%
ifrelaxdetokenizeexpandafter#1relax
void%
else
#1%
fi
defprintExamplevoid@or@print@Example
defExample#1def@Example#1
Example % initialize
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
printExample
endtitlepage
begindocument
enddocument
A more general implementation:
makeatletter
newcommandprint@conditionally[3]%
ifrelaxdetokenizeexpandafter#1relax
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
#2#3%
defprintExampleprint@conditionally@Examplevoid@Example
defExample#1def@Example#1
Example % initialize
makeatother
answered May 22 at 21:14
egregegreg
744k8919493287
Yes, there are few other macros asExample, that should be filled by the template's user (whileprintExample's are in some way hidden). But the true/false outputs depend on the macro, i.e., some show a "should-be-filled-message" in the PDF documents if empty, other are optional, and when correctly filled their formattings mostly differ. This is why I need a real if-then-else statement.
– Jérôme Champavère
May 23 at 10:10
@JérômeChampavère I added a more general implementation
– egreg
May 23 at 10:57
add a comment |
2
2
2
I guess you have other macros such as Example and printExample.
You can define a macro that does the work getting as input the desired storage bin.
documentclassreport
makeatletter
newcommandvoid@or@print[1]%
ifrelaxdetokenizeexpandafter#1relax
void%
else
#1%
fi
defprintExamplevoid@or@print@Example
defExample#1def@Example#1
Example % initialize
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
printExample
endtitlepage
begindocument
enddocument
A more general implementation:
makeatletter
newcommandprint@conditionally[3]%
ifrelaxdetokenizeexpandafter#1relax
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
#2#3%
defprintExampleprint@conditionally@Examplevoid@Example
defExample#1def@Example#1
Example % initialize
makeatother
answered May 22 at 21:14
egregegreg
744k8919493287
I guess you have other macros such as Example and printExample.
You can define a macro that does the work getting as input the desired storage bin.
documentclassreport
makeatletter
newcommandvoid@or@print[1]%
ifrelaxdetokenizeexpandafter#1relax
void%
else
#1%
fi
defprintExamplevoid@or@print@Example
defExample#1def@Example#1
Example % initialize
makeatother
Examplenot \ void
AtBeginDocument
begintitlepage
centering
printExample
endtitlepage
begindocument
enddocument
A more general implementation:
makeatletter
newcommandprint@conditionally[3]%
ifrelaxdetokenizeexpandafter#1relax
expandafter@firstoftwo
else
expandafter@secondoftwo
fi
#2#3%
defprintExampleprint@conditionally@Examplevoid@Example
defExample#1def@Example#1
Example % initialize
makeatother
answered May 22 at 21:14
egregegreg
744k8919493287
edited May 23 at 10:57
answered May 22 at 21:14
egregegreg
744k8919493287
answered May 22 at 21:14
egregegreg
744k8919493287
answered May 22 at 21:14
egregegreg
744k8919493287
744k8919493287
Yes, there are few other macros asExample, that should be filled by the template's user (whileprintExample's are in some way hidden). But the true/false outputs depend on the macro, i.e., some show a "should-be-filled-message" in the PDF documents if empty, other are optional, and when correctly filled their formattings mostly differ. This is why I need a real if-then-else statement.
– Jérôme Champavère
May 23 at 10:10
@JérômeChampavère I added a more general implementation
– egreg
May 23 at 10:57
add a comment |
Yes, there are few other macros asExample, that should be filled by the template's user (whileprintExample's are in some way hidden). But the true/false outputs depend on the macro, i.e., some show a "should-be-filled-message" in the PDF documents if empty, other are optional, and when correctly filled their formattings mostly differ. This is why I need a real if-then-else statement.
– Jérôme Champavère
May 23 at 10:10
@JérômeChampavère I added a more general implementation
– egreg
May 23 at 10:57
Yes, there are few other macros as
Example, that should be filled by the template's user (while printExample's are in some way hidden). But the true/false outputs depend on the macro, i.e., some show a "should-be-filled-message" in the PDF documents if empty, other are optional, and when correctly filled their formattings mostly differ. This is why I need a real if-then-else statement.– Jérôme Champavère
May 23 at 10:10
Yes, there are few other macros as
Example, that should be filled by the template's user (while printExample's are in some way hidden). But the true/false outputs depend on the macro, i.e., some show a "should-be-filled-message" in the PDF documents if empty, other are optional, and when correctly filled their formattings mostly differ. This is why I need a real if-then-else statement.– Jérôme Champavère
May 23 at 10:10
@JérômeChampavère I added a more general implementation
– egreg
May 23 at 10:57
@JérômeChampavère I added a more general implementation
– egreg
May 23 at 10:57
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What is the expected output. You could try using
noexpandarg, but I am not sure what the code is supposed to do.– Peter Grill
May 22 at 9:23
If you are just testing whether a macro is empty or not, then the void tests from
etoolboxmight be better, that is what I normally use. But as Peter mentions, it is not quite clear what you are trying to do.– daleif
May 22 at 9:52
1
It works with
xifthenusing this test:ifthenelseequalprintExamplevoidprintExample– frougon
May 22 at 9:57
Various tests from
etoolbox(ifdefvoid,ifstremptyorifblank) do not work with TeX Live 2017/Debian (but they work for current TeX Live). Commandifthenelsefromxifthenworks well, indeed (even if, from a "logical" perspective, I would expect a command whose argument is directly a string, not a boolean). Can someone explain why\breaksIfStrEqand if there is a way (or not) to use it?– Jérôme Champavère
May 22 at 19:52
I added
centeringin environmenttitlepagebecause it causes an error (! Incomplete iffalse; all text was ignored after line …) whenifthenelsetest is used. An other error is raised withcenterenvironment (! Use of @item doesn't match its definition.). In both cases, one needs to useprotect\in order to get it working as expected.– Jérôme Champavère
May 22 at 20:32