require('strict');
local count;local hcount;
--- The keywords have the meanings: _row_count: use row counter value (count); the hold counter (hcount) is same as count _row_count_hold: use the value currently assigned to hcount; bump count but do not bump hcount
local function get_count (keyword) count = count + 1; -- always bump the count if '_row_count'
keyword then -- current hcount value without increment return ' ' .. hcount; -- insert a leading space ahead of hcount endend
----------------------------< R O W _ N U M B E R S >--------------------------------------------------------
replaces keywords _row_count and _row_count_hold from the table in frame.args[1]
local function row_numbers (frame) local args = frame.args[1] and frame.args or frame:getParent.args; -- Only use if |index is a number; |index= may be omitted (nil), or empty string, or non-digit -- We subtract one because the get_count function increments this before use. count = (tonumber(args.index) or 1) - 1;
local tbl_str; -- Find out if what we got for input has been wrapped in ... tags if args[1]:match ('^%s*\127[^\127]*UNIQ%-%-nowiki%-%x%x%x%x%x%x%x%x%-QINU[^\127]*\127%s*$') then -- BUG. The trick does not work in VisualEditor, mobile app, or Special:ExpandTemplates. -- get the table from the nowiki tags passed as arguments tbl_str = mw.text.unstripNoWiki (args[1]); -- undo <nowiki>'s escaping of the wikitext (mw.text.decode (tbl_str); is too aggressive) tbl_str = tbl_str:gsub('<', '<'):gsub('>', '>'); else -- No MediaWiki bugs here (hopefully), but you need to escape = signs with {{=}} like normal. -- It is not possible to circumvent this because named parameters are not passed to Lua in a -- defined order, always have whitespace trimmed, etc. local parts = {} for _, str in ipairs(args) do table.insert(parts, str) end tbl_str = table.concat(parts, '|'); end -- if there is at least one of our special reserved words, replace it with a count return frame:preprocess (tbl_str:gsub('_row_count[_%w]*', get_count)); end --[[--------------------------< E X P O R T E D F U N C T I O N S >------------------------------------------ ]] return { row_numbers = row_numbers }