imported>Renamed user awfwvowjvwrvnwio: Sandbox edit

2018-02-15T19:00:45Z

Sandbox edit

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-- This is a metamodule for producing wikitext trees.

local p = {};
local middleclass = require('Module:Middleclass').class;

local TreeNode = middleclass('TreeNode');

function TreeNode:initialize(object, options)
self.children = {};
self.object = object;
self.options = options or {};
end

function TreeNode:addChild(child, level)
if type(child) ~= "table" then
error({
message = "Value passed to child is not a table (cannot currently check for TreeNodes)",
source = "TreeView",
method = "TreeNode:addChild",
status = -1073741585
}, 1);
end
self.children[child] = child:render(level)
end

local function process(object, pairFunction)
-- This function returns the node text to show for object, invoking
-- pairFunction for the keys and values of the object.
local metatable = getmetatable(object);
if type(object) ~= "table" then
return tostring(object);
end
if metatable and type(metatable.dissector) == "table" then
return metatable.dissector:processObject(object, pairFunction);
end
if metatable.name then
return 'An instance of' .. metatable.name;
end
local function counter()
local count = 0;
for k, v in pairs(object) do
pairFunction(k, v);
count = count + 1;
end
return count;
end
local success, result = pcall(counter);
if success then
return 'A table with ' .. tostring(result) .. ' pairs';
end
return 'A table with an unknown number of pairs';
end

function TreeNode:render(level)
if self.options.noRender then
-- Options requested not to render, simply to return self.
return self;
end
local pairFunction = function(k, v)
self:addChild(TreeNode:new(v, options), (level or 0) + 1);
end;
local title = process(self.object, pairFunction);
if options.nodeMaker then
title = options.nodeMaker(title, level);
else
if options.indent and type(options.indent) ~= "number" then
error({
message = "Value passed to options.indent is a not a number and not nil. Default is 30.",
source = "TreeView",
status = -1073741811
}, 1);
end
local indent = options.indent or 30;
title = tostring(mw.html.create('div')
:css('padding-left', tostring(level * options.indent) .. 'px')
:css('overflow', 'hidden')
:css('white-space', 'nowrap'));
end
for child, renderingResult in pairs(self.children) do
title = title .. '\n' .. renderingResult
end
end

function p.treeView(object, options)
local metatable = getmetatable(object);
if metatable.tree then
return style(metatable.tree(object), options);
end
return TreeNode:new(object, options):render();
end

return p

Module:Sandbox/Luis150902/Test - Revision history

imported>Renamed user awfwvowjvwrvnwio: Sandbox edit