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What is it I am doing wrong using `tl_case:Nn …`?
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When using document command arguments for case distinctions I routinely have been using the str_case:nn function, which works fine as is evident from the output of the myStrCase command. When attempting to use the tl_case:Nn function instead, by loading the argument into a _tl type variable, things go miserably wrong. The variable seems to be loaded with the correct value, and is then flagged as correct as far as the tl_case:Nn function is concerned, but the corresponding code is not executed. Why?
documentclassarticle
%=======================
usepackage[check-declarations,log-functions]expl3
usepackagexparse
%-----------------------
ExplSyntaxOn
tl_new:N l_rn_Aux_tl
NewDocumentCommandmyStrCaseOemphm
str_case:nnTF #1
emphtextit#2
Emphtextbftextit#2
ulineunderline#2
!~ERROR:~parameter~#1~=~#1~invalid
% myStrCase
NewDocumentCommandmyTlCaseOemphm
tl_set:Nx l_rn_Aux_tl #1
checking~what~was~passed:~l_rn_Aux_tl \
tl_case:NnTF l_rn_Aux_tl
emph textit#2
Emph textbftextit#2
uline underline#2
parameter~#1~=~#1~valid
!~ERROR:~parameter~#1~=~#1~invalid
% myTlCase
ExplSyntaxOff
%-----------------------
begindocument
subsectionusing str_case:
myStrCaseHi There\
myStrCase[emph]Hi There\
myStrCase[Emph]Hi There\
myStrCase[uline]Hi There\
myStrCase[xxx]Hi There
subsectionusing tl_case:
myTlCase[emph]Hi There\
myTlCase[xxx]Hi There
enddocument
expl3
asked 1 hour ago
Reinhard Neuwirth
1,38411320
add a comment |Â
up vote
1
down vote
favorite
When using document command arguments for case distinctions I routinely have been using the str_case:nn function, which works fine as is evident from the output of the myStrCase command. When attempting to use the tl_case:Nn function instead, by loading the argument into a _tl type variable, things go miserably wrong. The variable seems to be loaded with the correct value, and is then flagged as correct as far as the tl_case:Nn function is concerned, but the corresponding code is not executed. Why?
documentclassarticle
%=======================
usepackage[check-declarations,log-functions]expl3
usepackagexparse
%-----------------------
ExplSyntaxOn
tl_new:N l_rn_Aux_tl
NewDocumentCommandmyStrCaseOemphm
str_case:nnTF #1
emphtextit#2
Emphtextbftextit#2
ulineunderline#2
!~ERROR:~parameter~#1~=~#1~invalid
% myStrCase
NewDocumentCommandmyTlCaseOemphm
tl_set:Nx l_rn_Aux_tl #1
checking~what~was~passed:~l_rn_Aux_tl \
tl_case:NnTF l_rn_Aux_tl
emph textit#2
Emph textbftextit#2
uline underline#2
parameter~#1~=~#1~valid
!~ERROR:~parameter~#1~=~#1~invalid
% myTlCase
ExplSyntaxOff
%-----------------------
begindocument
subsectionusing str_case:
myStrCaseHi There\
myStrCase[emph]Hi There\
myStrCase[Emph]Hi There\
myStrCase[uline]Hi There\
myStrCase[xxx]Hi There
subsectionusing tl_case:
myTlCase[emph]Hi There\
myTlCase[xxx]Hi There
enddocument
expl3
asked 1 hour ago
Reinhard Neuwirth
1,38411320
add a comment |Â
up vote
1
down vote
favorite
up vote
1
down vote
favorite
When using document command arguments for case distinctions I routinely have been using the str_case:nn function, which works fine as is evident from the output of the myStrCase command. When attempting to use the tl_case:Nn function instead, by loading the argument into a _tl type variable, things go miserably wrong. The variable seems to be loaded with the correct value, and is then flagged as correct as far as the tl_case:Nn function is concerned, but the corresponding code is not executed. Why?
documentclassarticle
%=======================
usepackage[check-declarations,log-functions]expl3
usepackagexparse
%-----------------------
ExplSyntaxOn
tl_new:N l_rn_Aux_tl
NewDocumentCommandmyStrCaseOemphm
str_case:nnTF #1
emphtextit#2
Emphtextbftextit#2
ulineunderline#2
!~ERROR:~parameter~#1~=~#1~invalid
% myStrCase
NewDocumentCommandmyTlCaseOemphm
tl_set:Nx l_rn_Aux_tl #1
checking~what~was~passed:~l_rn_Aux_tl \
tl_case:NnTF l_rn_Aux_tl
emph textit#2
Emph textbftextit#2
uline underline#2
parameter~#1~=~#1~valid
!~ERROR:~parameter~#1~=~#1~invalid
% myTlCase
ExplSyntaxOff
%-----------------------
begindocument
subsectionusing str_case:
myStrCaseHi There\
myStrCase[emph]Hi There\
myStrCase[Emph]Hi There\
myStrCase[uline]Hi There\
myStrCase[xxx]Hi There
subsectionusing tl_case:
myTlCase[emph]Hi There\
myTlCase[xxx]Hi There
enddocument
expl3
asked 1 hour ago
Reinhard Neuwirth
1,38411320
When using document command arguments for case distinctions I routinely have been using the str_case:nn function, which works fine as is evident from the output of the myStrCase command. When attempting to use the tl_case:Nn function instead, by loading the argument into a _tl type variable, things go miserably wrong. The variable seems to be loaded with the correct value, and is then flagged as correct as far as the tl_case:Nn function is concerned, but the corresponding code is not executed. Why?
documentclassarticle
%=======================
usepackage[check-declarations,log-functions]expl3
usepackagexparse
%-----------------------
ExplSyntaxOn
tl_new:N l_rn_Aux_tl
NewDocumentCommandmyStrCaseOemphm
str_case:nnTF #1
emphtextit#2
Emphtextbftextit#2
ulineunderline#2
!~ERROR:~parameter~#1~=~#1~invalid
% myStrCase
NewDocumentCommandmyTlCaseOemphm
tl_set:Nx l_rn_Aux_tl #1
checking~what~was~passed:~l_rn_Aux_tl \
tl_case:NnTF l_rn_Aux_tl
emph textit#2
Emph textbftextit#2
uline underline#2
parameter~#1~=~#1~valid
!~ERROR:~parameter~#1~=~#1~invalid
% myTlCase
ExplSyntaxOff
%-----------------------
begindocument
subsectionusing str_case:
myStrCaseHi There\
myStrCase[emph]Hi There\
myStrCase[Emph]Hi There\
myStrCase[uline]Hi There\
myStrCase[xxx]Hi There
subsectionusing tl_case:
myTlCase[emph]Hi There\
myTlCase[xxx]Hi There
enddocument
expl3
expl3
asked 1 hour ago
Reinhard Neuwirth
1,38411320
asked 1 hour ago
Reinhard Neuwirth
1,38411320
asked 1 hour ago
Reinhard Neuwirth
1,38411320
asked 1 hour ago
Reinhard Neuwirth
1,38411320
asked 1 hour ago
Reinhard Neuwirth
1,38411320
1,38411320
add a comment |Â
add a comment |Â
1 Answer
1
active
oldest
votes
up vote
4
down vote
accepted
The documentation (interface3) already contains your answer:
tl_case:NnTF <test token list variable>
<token list variable case1> <code case1>
<token list variable case2> <code case2>
...
<token list variable casen> <code casen>
<true code>
<false code>
You will find "token list variable" and not "token list" therein. Hence you are asked to provide one token (a variable/N-type argument). So to use this construction you would need to save your options into variables and use these within tl_case.
answered 1 hour ago
TeXnician
22.5k52984
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
4
down vote
accepted
The documentation (interface3) already contains your answer:
tl_case:NnTF <test token list variable>
<token list variable case1> <code case1>
<token list variable case2> <code case2>
...
<token list variable casen> <code casen>
<true code>
<false code>
You will find "token list variable" and not "token list" therein. Hence you are asked to provide one token (a variable/N-type argument). So to use this construction you would need to save your options into variables and use these within tl_case.
answered 1 hour ago
TeXnician
22.5k52984
add a comment |Â
up vote
4
down vote
accepted
The documentation (interface3) already contains your answer:
tl_case:NnTF <test token list variable>
<token list variable case1> <code case1>
<token list variable case2> <code case2>
...
<token list variable casen> <code casen>
<true code>
<false code>
You will find "token list variable" and not "token list" therein. Hence you are asked to provide one token (a variable/N-type argument). So to use this construction you would need to save your options into variables and use these within tl_case.
answered 1 hour ago
TeXnician
22.5k52984
add a comment |Â
up vote
4
down vote
accepted
up vote
4
down vote
accepted
The documentation (interface3) already contains your answer:
tl_case:NnTF <test token list variable>
<token list variable case1> <code case1>
<token list variable case2> <code case2>
...
<token list variable casen> <code casen>
<true code>
<false code>
You will find "token list variable" and not "token list" therein. Hence you are asked to provide one token (a variable/N-type argument). So to use this construction you would need to save your options into variables and use these within tl_case.
answered 1 hour ago
TeXnician
22.5k52984
The documentation (interface3) already contains your answer:
tl_case:NnTF <test token list variable>
<token list variable case1> <code case1>
<token list variable case2> <code case2>
...
<token list variable casen> <code casen>
<true code>
<false code>
You will find "token list variable" and not "token list" therein. Hence you are asked to provide one token (a variable/N-type argument). So to use this construction you would need to save your options into variables and use these within tl_case.
answered 1 hour ago
TeXnician
22.5k52984
answered 1 hour ago
TeXnician
22.5k52984
answered 1 hour ago
TeXnician
22.5k52984
answered 1 hour ago
TeXnician
22.5k52984
22.5k52984
add a comment |Â
add a comment |Â
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