add an outer block delimiter set useful for rtfs etc - keeps them editable in word
Sub processing for assign_file method
returns the contents of a file
generates the array containing to-be-parsed stuff: $blocks["main"],$blocks["main.table"],$blocks["main.table.row"], etc. also builds the reverse parse order.
Debug function - var_dump wrapped in '
' tags
recursively gets the content of a file with {FILE "filename.tpl"} directives
store container block's name for file variables