Module:Buffer: Difference between revisions
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meta>Codehydro lovely little idea, no? |
meta>Codehydro convert non-nil/boolean to string |
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| Line 1: | Line 1: | ||
return setmetatable({ | return setmetatable({ | ||
__index = { | __index = { | ||
check = function(v) | |||
if v and v ~= true then | |||
if type(v) == 'table' then | |||
return getmetatable(v) and getmetatable(v).__tostring and | |||
tostring(v) | |||
or table.concat(v) | |||
end | |||
return v--i.e. numbers or strings | |||
end | |||
end, | |||
_ = function(self, v) | _ = function(self, v) | ||
table.insert(self, self.check(v)) | |||
return self | return self | ||
end, | end, | ||
| Line 19: | Line 27: | ||
return parent or child | return parent or child | ||
end, | end, | ||
v | self.check(v) | ||
}, getmetatable(self)) | }, getmetatable(self)) | ||
end | end | ||
| Line 28: | Line 36: | ||
}, | }, | ||
{__call = function(self, v) | {__call = function(self, v) | ||
return setmetatable({v | return setmetatable({self.check(v)}, self) | ||
end | end | ||
}) | }) | ||
Revision as of 02:58, 30 January 2015
Documentation for this module may be created at Module:Buffer/doc
return setmetatable({
__index = {
check = function(v)
if v and v ~= true then
if type(v) == 'table' then
return getmetatable(v) and getmetatable(v).__tostring and
tostring(v)
or table.concat(v)
end
return v--i.e. numbers or strings
end
end,
_ = function(self, v)
table.insert(self, self.check(v))
return self
end,
_in = function(self, v)
return setmetatable({
parent = self,
_out = function(child, v2, outs)
local parent = child.parent:_(child(v2))
if outs and outs > 0 then repeat
child = parent
parent = parent.parent
outs = parent and parent:_(child()) and (outs - 1) or 0
until outs == 0 end
return parent or child
end,
self.check(v)
}, getmetatable(self))
end
},
__call = function(t, i)
return table.concat(t, i)
end
},
{__call = function(self, v)
return setmetatable({self.check(v)}, self)
end
})
