Module:Infobox ET: Difference between revisions
m Zeta ETs: improvements |
m Zeta ETs: improvements |
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| Line 44: | Line 44: | ||
local zeta = frame.args['zeta'] | local zeta = frame.args['zeta'] | ||
local is_zeta = nil | local is_zeta = nil | ||
if type(zeta) == 'string' then | if type(zeta) == 'string' and #zeta > 0 then | ||
is_zeta = not zeta:match('^[Nn][Oo]$') | is_zeta = not zeta:match('^[Nn][Oo]$') | ||
end | end | ||