xkeyval — read keys from file
5
I want to read xkeyval options from an external file, like:
setkeys{my@keys}{input{conf}}
I tried several combinations of edef and expandafter, but to no avail. Any ideas?
Best regards,
Nicolas
expansion key-value xkeyval
edited 5 hours ago
Phelype Oleinik
25.9k54691
asked 9 hours ago
NicolaF_NicolaF_
563
add a comment |
5
I want to read xkeyval options from an external file, like:
setkeys{my@keys}{input{conf}}
I tried several combinations of edef and expandafter, but to no avail. Any ideas?
Best regards,
Nicolas
expansion key-value xkeyval
edited 5 hours ago
Phelype Oleinik
25.9k54691
asked 9 hours ago
NicolaF_NicolaF_
563
add a comment |
5
5
5
I want to read xkeyval options from an external file, like:
setkeys{my@keys}{input{conf}}
I tried several combinations of edef and expandafter, but to no avail. Any ideas?
Best regards,
Nicolas
expansion key-value xkeyval
edited 5 hours ago
Phelype Oleinik
25.9k54691
asked 9 hours ago
NicolaF_NicolaF_
563
I want to read xkeyval options from an external file, like:
setkeys{my@keys}{input{conf}}
I tried several combinations of edef and expandafter, but to no avail. Any ideas?
Best regards,
Nicolas
expansion key-value xkeyval
expansion key-value xkeyval
edited 5 hours ago
Phelype Oleinik
25.9k54691
asked 9 hours ago
NicolaF_NicolaF_
563
edited 5 hours ago
Phelype Oleinik
25.9k54691
asked 9 hours ago
NicolaF_NicolaF_
563
edited 5 hours ago
Phelype Oleinik
25.9k54691
edited 5 hours ago
Phelype Oleinik
25.9k54691
edited 5 hours ago
Phelype Oleinik
25.9k54691
25.9k54691
asked 9 hours ago
NicolaF_NicolaF_
563
asked 9 hours ago
NicolaF_NicolaF_
563
asked 9 hours ago
NicolaF_NicolaF_
563
563
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
5
You can't edef an input because it isn't expandable. You have to first read the contents of the file to a temporary variable and then pass that to setkeys.
Here's an expl3 implementation of setkeysFile. It's the same as the standard setkeys except that the second argument is a file that (should) contain a comma separated list of key-value pairs.
RequirePackage{filecontents}
begin{filecontents*}{conf.tex}
hello = world :D,
goodnews = everyone!,
end{filecontents*}
documentclass{article}
usepackage{xkeyval}
makeatletter
define@key{my@keys}{hello}{deftowhom{#1}}
define@key{my@keys}{goodnews}{defwho{#1}}
makeatother
usepackage{xparse}
ExplSyntaxOn
tl_new:N l__nicolas_setkeys_tl
NewDocumentCommand setkeysFile { m m }
{
file_get:nnNTF {#2} {} l__nicolas_setkeys_tl
{ exp_args:NnV setkeys {#1} l__nicolas_setkeys_tl }
{ __kernel_msg_error:nnn { kernel } { file-not-found } {#2} }
}
ExplSyntaxOff
begin{document}
setkeysFile{my@keys}{conf}
Hello towhom
Good news who
end{document}
this prints:
edited 9 hours ago
egreg
736k8919353261
answered 9 hours ago
Phelype OleinikPhelype Oleinik
25.9k54691
1
exp_args:NnV setkeys{#1} l__nicolas_setkeys_tlalready supplies the braces and is more correct code anyhow. Theior_open:Nnbusiness is useless.
– egreg
9 hours ago
Thanks :-) But why more correct? Oh, nevermind, it's becauseVgets the value of a register, and a register is anNtype. Am I correct?
– Phelype Oleinik
9 hours ago
1
@PhelypeOleinik Because aV-type argument must be a single token
– Joseph Wright♦
9 hours ago
@JosephWright Thanks! Some day I'll learn how to useexpl3properly :)
– Phelype Oleinik
9 hours ago
@PhelypeOleinik I took the liberty of streamlining your code.
– egreg
5 hours ago
|
show 1 more comment
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
5
You can't edef an input because it isn't expandable. You have to first read the contents of the file to a temporary variable and then pass that to setkeys.
Here's an expl3 implementation of setkeysFile. It's the same as the standard setkeys except that the second argument is a file that (should) contain a comma separated list of key-value pairs.
RequirePackage{filecontents}
begin{filecontents*}{conf.tex}
hello = world :D,
goodnews = everyone!,
end{filecontents*}
documentclass{article}
usepackage{xkeyval}
makeatletter
define@key{my@keys}{hello}{deftowhom{#1}}
define@key{my@keys}{goodnews}{defwho{#1}}
makeatother
usepackage{xparse}
ExplSyntaxOn
tl_new:N l__nicolas_setkeys_tl
NewDocumentCommand setkeysFile { m m }
{
file_get:nnNTF {#2} {} l__nicolas_setkeys_tl
{ exp_args:NnV setkeys {#1} l__nicolas_setkeys_tl }
{ __kernel_msg_error:nnn { kernel } { file-not-found } {#2} }
}
ExplSyntaxOff
begin{document}
setkeysFile{my@keys}{conf}
Hello towhom
Good news who
end{document}
this prints:
edited 9 hours ago
egreg
736k8919353261
answered 9 hours ago
Phelype OleinikPhelype Oleinik
25.9k54691
1
exp_args:NnV setkeys{#1} l__nicolas_setkeys_tlalready supplies the braces and is more correct code anyhow. Theior_open:Nnbusiness is useless.
– egreg
9 hours ago
Thanks :-) But why more correct? Oh, nevermind, it's becauseVgets the value of a register, and a register is anNtype. Am I correct?
– Phelype Oleinik
9 hours ago
1
@PhelypeOleinik Because aV-type argument must be a single token
– Joseph Wright♦
9 hours ago
@JosephWright Thanks! Some day I'll learn how to useexpl3properly :)
– Phelype Oleinik
9 hours ago
@PhelypeOleinik I took the liberty of streamlining your code.
– egreg
5 hours ago
|
show 1 more comment
5
You can't edef an input because it isn't expandable. You have to first read the contents of the file to a temporary variable and then pass that to setkeys.
Here's an expl3 implementation of setkeysFile. It's the same as the standard setkeys except that the second argument is a file that (should) contain a comma separated list of key-value pairs.
RequirePackage{filecontents}
begin{filecontents*}{conf.tex}
hello = world :D,
goodnews = everyone!,
end{filecontents*}
documentclass{article}
usepackage{xkeyval}
makeatletter
define@key{my@keys}{hello}{deftowhom{#1}}
define@key{my@keys}{goodnews}{defwho{#1}}
makeatother
usepackage{xparse}
ExplSyntaxOn
tl_new:N l__nicolas_setkeys_tl
NewDocumentCommand setkeysFile { m m }
{
file_get:nnNTF {#2} {} l__nicolas_setkeys_tl
{ exp_args:NnV setkeys {#1} l__nicolas_setkeys_tl }
{ __kernel_msg_error:nnn { kernel } { file-not-found } {#2} }
}
ExplSyntaxOff
begin{document}
setkeysFile{my@keys}{conf}
Hello towhom
Good news who
end{document}
this prints:
edited 9 hours ago
egreg
736k8919353261
answered 9 hours ago
Phelype OleinikPhelype Oleinik
25.9k54691
1
exp_args:NnV setkeys{#1} l__nicolas_setkeys_tlalready supplies the braces and is more correct code anyhow. Theior_open:Nnbusiness is useless.
– egreg
9 hours ago
Thanks :-) But why more correct? Oh, nevermind, it's becauseVgets the value of a register, and a register is anNtype. Am I correct?
– Phelype Oleinik
9 hours ago
1
@PhelypeOleinik Because aV-type argument must be a single token
– Joseph Wright♦
9 hours ago
@JosephWright Thanks! Some day I'll learn how to useexpl3properly :)
– Phelype Oleinik
9 hours ago
@PhelypeOleinik I took the liberty of streamlining your code.
– egreg
5 hours ago
|
show 1 more comment
5
5
5
You can't edef an input because it isn't expandable. You have to first read the contents of the file to a temporary variable and then pass that to setkeys.
Here's an expl3 implementation of setkeysFile. It's the same as the standard setkeys except that the second argument is a file that (should) contain a comma separated list of key-value pairs.
RequirePackage{filecontents}
begin{filecontents*}{conf.tex}
hello = world :D,
goodnews = everyone!,
end{filecontents*}
documentclass{article}
usepackage{xkeyval}
makeatletter
define@key{my@keys}{hello}{deftowhom{#1}}
define@key{my@keys}{goodnews}{defwho{#1}}
makeatother
usepackage{xparse}
ExplSyntaxOn
tl_new:N l__nicolas_setkeys_tl
NewDocumentCommand setkeysFile { m m }
{
file_get:nnNTF {#2} {} l__nicolas_setkeys_tl
{ exp_args:NnV setkeys {#1} l__nicolas_setkeys_tl }
{ __kernel_msg_error:nnn { kernel } { file-not-found } {#2} }
}
ExplSyntaxOff
begin{document}
setkeysFile{my@keys}{conf}
Hello towhom
Good news who
end{document}
this prints:
edited 9 hours ago
egreg
736k8919353261
answered 9 hours ago
Phelype OleinikPhelype Oleinik
25.9k54691
You can't edef an input because it isn't expandable. You have to first read the contents of the file to a temporary variable and then pass that to setkeys.
Here's an expl3 implementation of setkeysFile. It's the same as the standard setkeys except that the second argument is a file that (should) contain a comma separated list of key-value pairs.
RequirePackage{filecontents}
begin{filecontents*}{conf.tex}
hello = world :D,
goodnews = everyone!,
end{filecontents*}
documentclass{article}
usepackage{xkeyval}
makeatletter
define@key{my@keys}{hello}{deftowhom{#1}}
define@key{my@keys}{goodnews}{defwho{#1}}
makeatother
usepackage{xparse}
ExplSyntaxOn
tl_new:N l__nicolas_setkeys_tl
NewDocumentCommand setkeysFile { m m }
{
file_get:nnNTF {#2} {} l__nicolas_setkeys_tl
{ exp_args:NnV setkeys {#1} l__nicolas_setkeys_tl }
{ __kernel_msg_error:nnn { kernel } { file-not-found } {#2} }
}
ExplSyntaxOff
begin{document}
setkeysFile{my@keys}{conf}
Hello towhom
Good news who
end{document}
this prints:
edited 9 hours ago
egreg
736k8919353261
answered 9 hours ago
Phelype OleinikPhelype Oleinik
25.9k54691
edited 9 hours ago
egreg
736k8919353261
edited 9 hours ago
egreg
736k8919353261
edited 9 hours ago
egreg
736k8919353261
736k8919353261
answered 9 hours ago
Phelype OleinikPhelype Oleinik
25.9k54691
answered 9 hours ago
Phelype OleinikPhelype Oleinik
25.9k54691
answered 9 hours ago
Phelype OleinikPhelype Oleinik
25.9k54691
25.9k54691
1
exp_args:NnV setkeys{#1} l__nicolas_setkeys_tlalready supplies the braces and is more correct code anyhow. Theior_open:Nnbusiness is useless.
– egreg
9 hours ago
Thanks :-) But why more correct? Oh, nevermind, it's becauseVgets the value of a register, and a register is anNtype. Am I correct?
– Phelype Oleinik
9 hours ago
1
@PhelypeOleinik Because aV-type argument must be a single token
– Joseph Wright♦
9 hours ago
@JosephWright Thanks! Some day I'll learn how to useexpl3properly :)
– Phelype Oleinik
9 hours ago
@PhelypeOleinik I took the liberty of streamlining your code.
– egreg
5 hours ago
|
show 1 more comment
1
exp_args:NnV setkeys{#1} l__nicolas_setkeys_tlalready supplies the braces and is more correct code anyhow. Theior_open:Nnbusiness is useless.
– egreg
9 hours ago
Thanks :-) But why more correct? Oh, nevermind, it's becauseVgets the value of a register, and a register is anNtype. Am I correct?
– Phelype Oleinik
9 hours ago
1
@PhelypeOleinik Because aV-type argument must be a single token
– Joseph Wright♦
9 hours ago
@JosephWright Thanks! Some day I'll learn how to useexpl3properly :)
– Phelype Oleinik
9 hours ago
@PhelypeOleinik I took the liberty of streamlining your code.
– egreg
5 hours ago
1
1
exp_args:NnV setkeys{#1} l__nicolas_setkeys_tl already supplies the braces and is more correct code anyhow. The ior_open:Nn business is useless.– egreg
9 hours ago
exp_args:NnV setkeys{#1} l__nicolas_setkeys_tl already supplies the braces and is more correct code anyhow. The ior_open:Nn business is useless.– egreg
9 hours ago
Thanks :-) But why more correct? Oh, nevermind, it's because
V gets the value of a register, and a register is an N type. Am I correct?– Phelype Oleinik
9 hours ago
Thanks :-) But why more correct? Oh, nevermind, it's because
V gets the value of a register, and a register is an N type. Am I correct?– Phelype Oleinik
9 hours ago
1
1
@PhelypeOleinik Because a
V-type argument must be a single token– Joseph Wright♦
9 hours ago
@PhelypeOleinik Because a
V-type argument must be a single token– Joseph Wright♦
9 hours ago
@JosephWright Thanks! Some day I'll learn how to use
expl3 properly :)– Phelype Oleinik
9 hours ago
@JosephWright Thanks! Some day I'll learn how to use
expl3 properly :)– Phelype Oleinik
9 hours ago
@PhelypeOleinik I took the liberty of streamlining your code.
– egreg
5 hours ago
@PhelypeOleinik I took the liberty of streamlining your code.
– egreg
5 hours ago
|
show 1 more comment
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