[Tex/LaTex] Define path for packages in the LaTeX file (analog of \input@path or \graphicspath for \usepackage)

inputpackage-writingpackagespaths

How to specify path for additional packages in the LaTeX file itself?

For graphics, you use \graphicspath{{a}{b}}, and then \includegraphics{file} finds b/file.pdf. EDIT: it should be \graphicspath{{a/}{b/}}, with slashes at the end.

For \input, you use \def\input@path{{a}{b}}, and then \input{file} finds b/file.tex. EDIT: \def\input@path{{a/}{b/}} is the answer, with slashes at the end.

Can I use a similar construction for \usepackage, so that \usepackage{mystuff} would find b/mystuff.sty?

I know I can mess up with system configuration or environment variables, but I prefer to specify this in the file itself, so that my files could be compiled on another computer.

I know that I can simply use \usepackage{b/mystuff}, but it generates a warning You have requested b/mystaff but the package provides mystuff, and it is less portable — for example, it requires knowing in which specific folder mystuff.sty is.

Best Answer

\usepackage is a wrapper around \input so \input@path applies to that just as well, but it is better not to set \input@path and just set TEXINPUTS appropriately

Related Solutions

[Tex/LaTex] Specifying an absolute Windows path for \includegraphics

You need to write the \ as / because (La)TeX follows the Unix style (which is also used for WWW addresses). Also the spaces in the filename are a problem. You can load the grffile package with the space option to make things easier as mentioned by Herbert in How to include graphics with spaces in their path?. If it wouldn't be for the \vs./ your question would be a duplicate of it. Alternatively try to enclose the file base in { } as explained in \includegraphics: Dots in filename.

% Preamble
\usepackage{graphicx}
\usepackage[space]{grffile}
%...
% Document
\includegraphics{C:/Documents and Settings/Nina/asdd.jpg}

[Tex/LaTex] Can a default path be set globally for \input{…} akin to \graphicspath{…}

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

\makeatletter
\def\input@path{{path1/}{path2/}}
\makeatother

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.

\makeatletter
\providecommand*{\input@path}{}
\g@addto@macro\input@path{{path1/}{path2/}}% append
\makeatother

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:

\makeatletter
\providecommand*{\input@path}{}
\edef\input@path{{path1/}{path2/}\input@path}% prepend
\makeatother

Best Answer

Related Solutions

[Tex/LaTex] Specifying an absolute Windows path for \includegraphics

[Tex/LaTex] Can a default path be set globally for \input{…} akin to \graphicspath{…}

Addition to \input@path

Related Question

Addition to `\input@path`