Module:Navbar

local p = {} local HtmlBuilder = require('Module:HtmlBuilder') local function trim(s) return mw.ustring.match( s, "^%s*(.-)%s*$" ) end local function htmlError(s) local span = HtmlBuilder.create('span') span .addClass('error') .css('float', 'left') .css('white-space', 'nowrap') .wikitext('Error: ' .. s)   return tostring(span) end local function getTitle( pageName ) pageName = trim( pageName ); local page_title, talk_page_title; if mw.ustring.sub(pageName, 1, 1) == ':' then page_title = mw.title.new( mw.ustring.sub(pageName, 2) ); else page_title = mw.title.new( pageName, 'Template' ); end if page_title then talk_page_title = page_title.talkPageTitle; else talk_page_title = nil; end return page_title, talk_page_title; end local function _navbar( args ) if not args[1] then return htmlError('No name provided') end local good, title, talk_title; good, title, talk_title = pcall( getTitle, args[1] ); if not good then return htmlError(title); end if not title then return htmlError('Page does not exist') end local mainpage = title.fullText; local talkpage = talk_title and talk_title.fullText or '' local editurl = title:fullUrl( 'action=edit' ); local viewLink, talkLink, editLink = 'view', 'talk', 'edit' if args.mini then viewLink, talkLink, editLink = 'v', 't', 'e'   end local div = HtmlBuilder.create( 'div' ) div .addClass( 'plainlinks' ) .addClass( 'hlist' ) .addClass( 'navbar') .cssText( args.style ) if args.mini then div.addClass('mini') end if not (args.mini or args.plain) then div .tag( 'span' ) .css( 'word-spacing', 0 ) .cssText( args.fontstyle ) .wikitext( args.text or 'This box:' ) .wikitext( ' ' ) end if args.brackets then div .tag('span') .css('margin-right', '-0.125em') .cssText( args.fontstyle ) .wikitext( '&#91;' ) .newline; end local ul = div.tag('ul'); ul       .tag( 'li' ) .addClass( 'nv-view' ) .wikitext(  )           .tag( 'span ' )                .attr( 'title', 'View this template' )                .cssText( args.fontstyle or  )                .wikitext( viewLink )                .done            .wikitext( '' ) .done .tag( 'li' ) .addClass( 'nv-talk' ) .wikitext(  )           .tag( 'span ' )                .attr( 'title', 'Discuss this template' )                .cssText( args.fontstyle or  )                .wikitext( talkLink )                .done            .wikitext( '' ); if not args.noedit then ul           .tag( 'li' ) .addClass( 'nv-edit' ) .wikitext( '[' .. editurl .. ' ' ) .tag( 'span ' ) .attr( 'title', 'Edit this template' ) .cssText( args.fontstyle or '' ) .wikitext( editLink ) .done .wikitext( ']' ); end if args.brackets then div .tag('span') .css('margin-left', '-0.125em') .cssText( args.fontstyle or '' ) .wikitext( '&#93;' ) .newline; end return tostring(div) end function p.navbar(frame) local origArgs -- If called via #invoke, use the args passed into the invoking template. -- Otherwise, for testing purposes, assume args are being passed directly in. if frame == mw.getCurrentFrame then origArgs = frame:getParent.args else origArgs = frame end -- ParserFunctions considers the empty string to be false, so to preserve the previous -- behavior of, change any empty arguments to nil, so Lua will consider -- them false too. local args = {} for k, v in pairs(origArgs) do       if v ~= '' then args[k] = v       end end return _navbar(args) end return p