abs append at_least at_most
capitalize ceil cols compact concat cycle
date decrement default divided_by downcase
escape escape_once
first floor
include increment
join
last lstrip
map minus modulo
newline_to_br
paginate plus prepend
remove remove_first replace replace_first reverse round rstrip
size slice sort sort_natural split strip strip_html strip_newlines
times truncate truncatewords
uniq upcase url_decode url_encode

----------------------------------------------------

[
	["function", "abs"], ["function", "append"], ["function", "at_least"], ["function", "at_most"],
	["function", "capitalize"], ["function", "ceil"], ["function", "cols"], ["function", "compact"], ["function", "concat"], ["function", "cycle"],
	["function", "date"], ["function", "decrement"], ["function", "default"], ["function", "divided_by"], ["function", "downcase"],
	["function", "escape"], ["function", "escape_once"],
	["function", "first"], ["function", "floor"],
	["function", "include"], ["function", "increment"],
	["function", "join"],
	["function", "last"], ["function", "lstrip"],
	["function", "map"], ["function", "minus"], ["function", "modulo"],
	["function", "newline_to_br"],
	["function", "paginate"], ["function", "plus"], ["function", "prepend"],
	["function", "remove"], ["function", "remove_first"], ["function", "replace"], ["function", "replace_first"], ["function", "reverse"], ["function", "round"], ["function", "rstrip"],
	["function", "size"], ["function", "slice"], ["function", "sort"], ["function", "sort_natural"], ["function", "split"], ["function", "strip"], ["function", "strip_html"], ["function", "strip_newlines"],
	["function", "times"], ["function", "truncate"], ["function", "truncatewords"],
	["function", "uniq"], ["function", "upcase"], ["function", "url_decode"], ["function", "url_encode"]
]

----------------------------------------------------

Checks for functions. Also checks for unicode characters in identifiers.