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For the graphicx package, we can use \graphicspath{...} so that we can directly use filenames in the argument of \includegraphics{...}. Can a similar thing be done for directly using filenames in \input{...}. I know of the method mentioned here but if this was the way to do it, then why does \graphicspath{...} exist?

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1 Answer 1

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\graphicspath comes from LaTeX's \input@path, just using the paths for graphics files. \input@path can be set independently, e.g.:


Internally package graphics stores its path of \graphicspath in \Ginput@path and locally sets \input@path to \Ginput@path, if it looks for files via \IfFileExists.

Addition to \input@path

The macro \input@path can be undefined (usually the default in LaTeX) or it can already contain other path entries. Therefore, \providecommand in the following code first defines the macro for the case that \input@path is undefined. Then \g@addto@macro extends the definition of \input@path.

\g@addto@macro\input@path{{path1/}{path2/}}% append

Alternatively \edef can be used, which expands the definition text. The next example uses it to prepend the contents to \input@path to the old meaning of \input@path:

\edef\input@path{{path1/}{path2/}\input@path}% prepend
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how do you add to that list without removing whatever is there already? – Frederick Nord Sep 23 at 20:54
@FrederickNord Answer updated for showing how to append or prepend new path elements. – Heiko Oberdiek Sep 23 at 21:44

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