\input Tcode.tex %The core
\input Tcode_Ccode.tex %For the C language
\unless\ifdefined\color
   \input pdfcolor-rg.tex %Comment out if you prefer to include a colour package later
\fi
\input Chighlighting_1.tex
\let\skipAnnexK\relax %This skips them
\let\skipfamilies\relax
\input Cwords-29.tex
\input Tutils-fastfonts-1.tex %For Latex, for considerably faster font switch in the snippets.