Difference between revisions of "Module:Yesno"
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function p.yesno( frame ) | function p.yesno( frame ) | ||
| + | -- defaults | ||
local retvals = { | local retvals = { | ||
yes = "yes", | yes = "yes", | ||
| Line 9: | Line 10: | ||
} | } | ||
| + | -- Allow arguments to override defaults. | ||
| + | -- 'any' tracks the presence of any arguments at all. | ||
local any = false | local any = false | ||
for k,v in pairs( frame.args ) do | for k,v in pairs( frame.args ) do | ||
| Line 17: | Line 20: | ||
val = frame.args[1] | val = frame.args[1] | ||
| + | -- According to the template docs, the input should be considered nil | ||
| + | -- only when no params were provided. If any params at all were present, | ||
| + | -- the value must be considered blank. A bit weird, if you ask me. | ||
if (val == nil and not any) or val == '¬' then | if (val == nil and not any) or val == '¬' then | ||
return retvals['¬'] | return retvals['¬'] | ||
end | end | ||
| − | val = (val or ''):lower() | + | val = (val or ''):lower() -- Coerce to blank if nil; make lowercase. |
| − | val = val:match'^%s*(.*%S)' or '' | + | val = val:match'^%s*(.*%S)' or '' -- Trim whitespace. |
if val == '' then | if val == '' then | ||
Revision as of 06:16, 3 March 2013
Documentation for this module may be created at Module:Yesno/doc
local p = {}
function p.yesno( frame )
-- defaults
local retvals = {
yes = "yes",
no = "",
["¬"] = ""
}
-- Allow arguments to override defaults.
-- 'any' tracks the presence of any arguments at all.
local any = false
for k,v in pairs( frame.args ) do
any = true
retvals[k] = v
end
val = frame.args[1]
-- According to the template docs, the input should be considered nil
-- only when no params were provided. If any params at all were present,
-- the value must be considered blank. A bit weird, if you ask me.
if (val == nil and not any) or val == '¬' then
return retvals['¬']
end
val = (val or ''):lower() -- Coerce to blank if nil; make lowercase.
val = val:match'^%s*(.*%S)' or '' -- Trim whitespace.
if val == '' then
return retvals['blank'] ~= nil and retvals['blank'] or retvals['no']
elseif val == 'n' or val == 'no' or val == '0' then
return retvals['no']
elseif val == 'y' or val == 'yes' or val == '1' or retvals['def'] == nil then
return retvals['yes']
else
return retvals['def']
end
end
return p
