- added placeholder subistution for _TODAY_

- more yaml tweaks

R/rendr/rend.R

@@ -48,10 +48,10 @@ tmpScript <- tempfile(fileext=".R")
 ## remove sheband and comment-only lines from source document
 #file.copy(r_script, tmpScript)
 
-system(paste("cat ", r_script," | grep -Ev '^#+$' | grep -Fv '#!/usr/bin/env Rscript' >", tmpScript))
+system(paste("cat ", r_script," | sed 's/_TODAY_/'$(date +\"%m-%d-%Y\")'/g' | grep -Ev '^#+$' | grep -Fv '#!/usr/bin/env Rscript' >", tmpScript))
 
 ## add yaml header (will be ignored if already present
-metadata <- paste0('#\n',
+metadata <- paste0('#\'\n\n',
   '#\' ---\n',
   '#\' title: ""\n',
   '#\' author: ""\n',

R/rendr/rmd_playground.R

@@ -14,3 +14,5 @@ rmarkdown::render(input="/Users/brandl/Dropbox/projects/snippets/R/rmarkdown/tes
 #' # Pandoc
 
 #' All options are listed at http://pandoc.org/README.html and can be used as "pandoc_args" in html_document
+
+#' yaml header is parsed in https://github.com/rstudio/rmarkdown/blob/a46a78fa241e86170a6bb3db02cfb9342ccc86a2/R/render.R
\ No newline at end of file