//R
//R/zzz.R
//R/opts.R
//R/kable.R
//R/print.R
//R/utils.R
//R/tex_addin.R
//R/tex_build.R
//R/tex_check.R
//R/tex_image.R
//R/tex_engine.R
//R/tex_return.R
//R/tex_viewer.R
//R/build_lines.R
//R/tex_cleanup.R
//R/tex_preview.R
//R/opts_complete.R
//R/tex_dir_setup.R
//R/get_texpackages.R
//R/build_usepackage.R
//R/texPreview-deprecated.R