#ENV{parameter}
– which we addressed in (The #ENV environment) – retrieves environment variables passed into the template. A second argument is used to return a default value if the parameter requested does not exist in the environment or if its contents are empty.
#ENV{parameter, default value}
The parameter value retrieved is automatically filtered through entites_html
, which converts the text into an HTML entity (a <
character thereby becoming <
). To avoid this conversion, we can apply an asterisk to the tag:
#ENV*{parameter, default value}
Finally, the #ENV
tag just by itself returns a sequential table of all of the environment parameters.