Module:Table row counter

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This module implements the {{table row counter}} template.

Usage from wikitext

This module can be used from wikitext in the same way as the {{table row counter}} template, by simply using {{#invoke:table row counter | main}} in place of {{table row counter}}.

Usage from Lua modules

To use this module from other Lua modules, first load the module.

local mTRC = require('Module:Table row counter')

You can then count table rows by using the _main function.

mTRC._main(args)

args is a table containing the module arguments. See the template documentation for more information about the available arguments, and for general caveats about this module's use.

The above documentation is transcluded from Module:Table row counter/doc. (edit | history)
Editors can experiment in this module's sandbox (edit | diff) and testcases (create) pages.
Subpages of this module.

-- This module counts table rows in wikitext.

local p = {}

function p.main(frame)
	local args = require('Module:Arguments').getArgs(frame, {parentOnly = true})
	local tableNo = tonumber(args[1])
	local ignoreRows = tonumber(args.ignore)
	local page = args.page
	local success, titleObj = pcall(mw.title.new, page)
	if not success then
		titleObj = nil
	end
	return p.luaMain(tableNo, titleObj) or ''
end

function p.luaMain(tableNo, ignoreRows, titleObj)
	titleObj = titleObj or mw.title.getCurrentTitle()
	local content = titleObj:getContent()
	if not content then
		return nil
	end

	local wikitables
	do
		wikitables = {}
		local iWikitable = 0
		for s in content:gmatch('\n({|.-\n|})') do
			iWikitable = iWikitable + 1
			wikitables[iWikitable] = s
		end
	end

	tableNo = tableNo or 1
	local wikitable = wikitables[tableNo]

	if not wikitable then
		return nil
	end

	local iRow
	wikitable, iRow = wikitable:gsub('\n|%-', '\n|-')
	return iRow - ignoreRows
end

return p