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How to detect whether PassOptionsToPackage was already called?
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If I call:
PassOptionsToPackage{backend=biber,style=numeric,backref=false}{biblatex}
% And later someone else call again
PassOptionsToPackage{style=abnt,backend=biber}{biblatex}
What will happen?
Can I detect whether someone else had already called PassOptionsToPackage and do not override their definitions?
optional-arguments package-options class-options options
asked 10 hours ago
useruser
1,2602930
add a comment |
If I call:
PassOptionsToPackage{backend=biber,style=numeric,backref=false}{biblatex}
% And later someone else call again
PassOptionsToPackage{style=abnt,backend=biber}{biblatex}
What will happen?
Can I detect whether someone else had already called PassOptionsToPackage and do not override their definitions?
optional-arguments package-options class-options options
asked 10 hours ago
useruser
1,2602930
add a comment |
If I call:
PassOptionsToPackage{backend=biber,style=numeric,backref=false}{biblatex}
% And later someone else call again
PassOptionsToPackage{style=abnt,backend=biber}{biblatex}
What will happen?
Can I detect whether someone else had already called PassOptionsToPackage and do not override their definitions?
optional-arguments package-options class-options options
asked 10 hours ago
useruser
1,2602930
If I call:
PassOptionsToPackage{backend=biber,style=numeric,backref=false}{biblatex}
% And later someone else call again
PassOptionsToPackage{style=abnt,backend=biber}{biblatex}
What will happen?
Can I detect whether someone else had already called PassOptionsToPackage and do not override their definitions?
optional-arguments package-options class-options options
optional-arguments package-options class-options options
asked 10 hours ago
useruser
1,2602930
asked 10 hours ago
useruser
1,2602930
asked 10 hours ago
useruser
1,2602930
asked 10 hours ago
useruser
1,2602930
asked 10 hours ago
useruser
1,2602930
1,2602930
add a comment |
add a comment |
1 Answer
1
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votes
The definition of PassOptionsToPackage is
% latex.ltx, line 7784:
defPassOptionsToPackage{@pass@ptions@pkgextension}
and we can look at @pass@ptions:
% latex.ltx, line 7778:
def@pass@ptions#1#2#3{%
expandafterxdefcsname opt@#3.#1endcsname{%
@ifundefined{opt@#3.#1}@empty
{csname opt@#3.#1endcsname,}%
zap@space#2 @empty}}
Suppose we call PassOptionsToPackage{baz}{foo}. If opt@foo.sty (can only be formed with csname) is undefined, it is defined to expand to baz. If it is already defined, say to gnu,gnat, then it will be redefined to expand to gnu,gnat,baz.
The latter case can happen either if PassOptionsToPackage{...}{foo} has already been called or the package has already been loaded. In the second case PassOptionsToPackage{baz}{foo} does nothing.
As you see, new sets of options are chained to the already existing ones. It's then a job of the package, when loaded, to make its way amongst them.
This should also answer your question about detection: you can use
ifcsname opt@foo.styendcsname
<options have already been passed or the package has already been loaded>
else
<no options have been passed yet>
fi
answered 8 hours ago
egregegreg
732k8919303253
add a comment |
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1 Answer
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1 Answer
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active
oldest
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The definition of PassOptionsToPackage is
% latex.ltx, line 7784:
defPassOptionsToPackage{@pass@ptions@pkgextension}
and we can look at @pass@ptions:
% latex.ltx, line 7778:
def@pass@ptions#1#2#3{%
expandafterxdefcsname opt@#3.#1endcsname{%
@ifundefined{opt@#3.#1}@empty
{csname opt@#3.#1endcsname,}%
zap@space#2 @empty}}
Suppose we call PassOptionsToPackage{baz}{foo}. If opt@foo.sty (can only be formed with csname) is undefined, it is defined to expand to baz. If it is already defined, say to gnu,gnat, then it will be redefined to expand to gnu,gnat,baz.
The latter case can happen either if PassOptionsToPackage{...}{foo} has already been called or the package has already been loaded. In the second case PassOptionsToPackage{baz}{foo} does nothing.
As you see, new sets of options are chained to the already existing ones. It's then a job of the package, when loaded, to make its way amongst them.
This should also answer your question about detection: you can use
ifcsname opt@foo.styendcsname
<options have already been passed or the package has already been loaded>
else
<no options have been passed yet>
fi
answered 8 hours ago
egregegreg
732k8919303253
add a comment |
The definition of PassOptionsToPackage is
% latex.ltx, line 7784:
defPassOptionsToPackage{@pass@ptions@pkgextension}
and we can look at @pass@ptions:
% latex.ltx, line 7778:
def@pass@ptions#1#2#3{%
expandafterxdefcsname opt@#3.#1endcsname{%
@ifundefined{opt@#3.#1}@empty
{csname opt@#3.#1endcsname,}%
zap@space#2 @empty}}
Suppose we call PassOptionsToPackage{baz}{foo}. If opt@foo.sty (can only be formed with csname) is undefined, it is defined to expand to baz. If it is already defined, say to gnu,gnat, then it will be redefined to expand to gnu,gnat,baz.
The latter case can happen either if PassOptionsToPackage{...}{foo} has already been called or the package has already been loaded. In the second case PassOptionsToPackage{baz}{foo} does nothing.
As you see, new sets of options are chained to the already existing ones. It's then a job of the package, when loaded, to make its way amongst them.
This should also answer your question about detection: you can use
ifcsname opt@foo.styendcsname
<options have already been passed or the package has already been loaded>
else
<no options have been passed yet>
fi
answered 8 hours ago
egregegreg
732k8919303253
add a comment |
The definition of PassOptionsToPackage is
% latex.ltx, line 7784:
defPassOptionsToPackage{@pass@ptions@pkgextension}
and we can look at @pass@ptions:
% latex.ltx, line 7778:
def@pass@ptions#1#2#3{%
expandafterxdefcsname opt@#3.#1endcsname{%
@ifundefined{opt@#3.#1}@empty
{csname opt@#3.#1endcsname,}%
zap@space#2 @empty}}
Suppose we call PassOptionsToPackage{baz}{foo}. If opt@foo.sty (can only be formed with csname) is undefined, it is defined to expand to baz. If it is already defined, say to gnu,gnat, then it will be redefined to expand to gnu,gnat,baz.
The latter case can happen either if PassOptionsToPackage{...}{foo} has already been called or the package has already been loaded. In the second case PassOptionsToPackage{baz}{foo} does nothing.
As you see, new sets of options are chained to the already existing ones. It's then a job of the package, when loaded, to make its way amongst them.
This should also answer your question about detection: you can use
ifcsname opt@foo.styendcsname
<options have already been passed or the package has already been loaded>
else
<no options have been passed yet>
fi
answered 8 hours ago
egregegreg
732k8919303253
The definition of PassOptionsToPackage is
% latex.ltx, line 7784:
defPassOptionsToPackage{@pass@ptions@pkgextension}
and we can look at @pass@ptions:
% latex.ltx, line 7778:
def@pass@ptions#1#2#3{%
expandafterxdefcsname opt@#3.#1endcsname{%
@ifundefined{opt@#3.#1}@empty
{csname opt@#3.#1endcsname,}%
zap@space#2 @empty}}
Suppose we call PassOptionsToPackage{baz}{foo}. If opt@foo.sty (can only be formed with csname) is undefined, it is defined to expand to baz. If it is already defined, say to gnu,gnat, then it will be redefined to expand to gnu,gnat,baz.
The latter case can happen either if PassOptionsToPackage{...}{foo} has already been called or the package has already been loaded. In the second case PassOptionsToPackage{baz}{foo} does nothing.
As you see, new sets of options are chained to the already existing ones. It's then a job of the package, when loaded, to make its way amongst them.
This should also answer your question about detection: you can use
ifcsname opt@foo.styendcsname
<options have already been passed or the package has already been loaded>
else
<no options have been passed yet>
fi
answered 8 hours ago
egregegreg
732k8919303253
answered 8 hours ago
egregegreg
732k8919303253
answered 8 hours ago
egregegreg
732k8919303253
answered 8 hours ago
egregegreg
732k8919303253
732k8919303253
add a comment |
add a comment |
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