isempty with estring

[tlienart]

julia> raw"""
       +++
       a = (b="", c="foo")
       +++
       {{isempty e"$a.c"}}
       foo
       {{else}}bar{{end}}
       """ |> html
"<p>\nfoo\n</p>\n"

though to be fair it's ambiguous here.. isempty expects the name of a var, would make more sense to have (actually works)

julia> raw"""
       +++
       a = (b="", c="foo")
       +++
       {{if e"isempty($a.c)"}}
       foo
       {{else}}bar{{end}}
       """ |> html
"<p>bar</p>\n"

[tlienart]

could check, priority for the name of a var, otherwise, if actually an empty string return true, otherwise if anything else return false.