my wrappers around “includegraphics”
To put an image to a document, LaTeX provides the command "\includegraphics". As it often happens, due to LaTeX was designed for manual typesetting, this command is a nightmare for automatic generation. For a long time, I use a wrapper to solve 99% of the problems.
I.
\RequirePackage{grffile}Without this package, code
\includegraphics{ANSIboat.v1.pdf}raises the dummy error:
! LaTeX Error: Unknown graphics extension: .boat.v1.pdf.II.
\def\includegraphicsII[#1]#2{%
\IfFileExists{#2}{\includegraphics[#1]{#2}}{%
\typeout{! LaTeX warning: File `#2' not found.}%
\includegraphics[#1]{dummy.pdf}}}
If there is no image file, LaTeX
* annonces this problem to the console and the log file,
* uses the image "dummy.pdf" instead
III.
\catcode`\_=11
\edef\ImageUnderscore{_}
\catcode`\_=8
\def\Image[#1]#2{{%
\let\_=\ImageUnderscore
\includegraphicsII[#1]{#2}}}
This allows to specify a file name with the underscore symbol using the standard LaTeX escaping rules:
\Image{ANSI\_boat.pdf}instead of
\includegraphicsII{ANSI_boat.pdf}Benefit: no need for special escaping rules in an automatic XML to LaTeX converter.
Actually, the code must be extended, to include "\{", "\textless" and other special symbols, but it's TODO.