Module:Sandbox/Ythlev/Adjacent stations explained

local p, data, defaultData, lineData, typeData, funcIsAdjacent = local function dig(...) -- Digs through a table with sub-tables using arguments as keys, returning the value of the last key argument -- Analogous to returning a file given a file path with sub-folders -- Returns nil if any given sub-table does not exist local arg, n =, select('#', ...) local a, i = arg[1], 1 while a and i < n do a = a[arg[i + 1]] i = i + 1 end return aendlocal function makeInvokeFunc(funcName) return function (frame) local args = require('Module:Arguments').getArgs(frame) if funcName

'_adjacent' then funcIsAdjacent = true local tableTools = require('Module:TableTools') args = tableTools.numData(args) if args.other then args[1] = args[1] or for k, _ in pairs(args.other) do args[1][k] = args[1][k] or args['other'][k] end end return p[funcName](tableTools.compressSparseArray(args)) else args.system = args.system or args[1] if args.system then local s = 'Module:Rail/' .. args.system local t = 'Module:Adjacent stations/' .. args.system data = mw.title.new(s).exists and mw.loadData(s) or mw.title.new(t).exists and mw.loadData(t) end if funcName ~= '_infoboxStation' then args.line = args.line or args[funcName == '_station' and 3 or 2] args['type'] = args['type'] or args[funcName == '_station' and 4 or 3] if funcName ~= '_station' then defaultData = dig(data, 'lines', '_default') if args.line then lineData = dig(data, 'lines', args.line) or dig(data, 'lines', dig(data, 'aliases', string.lower(args.line))) end typeData = dig(lineData, 'types', args['type']) if funcName

'_icon' or funcName

'_box' then args.style = args.style or args.inline or dig(typeData, 'icon format') or dig(lineData, 'icon format') or dig(data, 'system icon format') args.style = args.style

'image' and nil or args.style funcName = args.style and '_box' end end end return p[funcName](args, not data and frame) end endendp.style = makeInvokeFunc('_infoboxStation')p.infoboxStation = makeInvokeFunc('_infoboxStation')function p._infoboxStation(args, frame) local root = mw.html.create('div') if args[3]

'_subheader' then root:css('background-color', '#EFEFEF') end if args.system then if args[3]

'_subheader' then root:css('color', 'white') end if data then root:css(dig(data, 'infobox station', args[2], args[3]) or dig(data, 'infobox station', args[3]) ) else if args[3]

'_header' then root:cssText(frame:expandTemplate) else local thcolor = frame:expandTemplate root:css('color', thcolor and '#' .. thcolor) local thbgcolor = frame:expandTemplate root:css('background-color', thbgcolor and '#' .. thbgcolor) end end end return string.match(tostring(root), '

')endlocal function stationTitle(station, line, typ, n) if station and data then local data, link = funcIsAdjacent and data[n] or data if type(data['station format'])

'table' then local defaultFormat = data['station format'] if type(defaultFormat[station])

'table' then local stationFormat = defaultFormat[station] if line then line = stationFormat[line] and line or dig(data, 'aliases', string.lower(line)) end if type(stationFormat[line])

'table' then local lineFormat = stationFormat[line] link = lineFormat[typ] or lineFormat[1] else link = stationFormat[line] or stationFormat[1] end else link = defaultFormat[station] or defaultFormat[1] end else link = data['station format'] end link = (string.gsub(link, '%%1', station)) link = line and (string.gsub(link, '%%2', line)) or link link = typ and (string.gsub(link, '%%3', typ)) or link return string.match(link, '%[%[.*%]%]') and link or table.concat endendp.station = makeInvokeFunc('_station')function p._station(args, frame) args.station = args.station or args[2] if data then return stationTitle(args.station, args.line, args['type']) else return frame:expandTemplate endendp.line = makeInvokeFunc('_line')function p._line(args, frame) if data then return typeData and typeData['title'] and table.concat or lineData and lineData['title'] or defaultData and (string.gsub(defaultData['title'], '%%1', args.line or '_default')) else return frame:expandTemplate endendp.color = makeInvokeFunc('_color')function p._color(args, frame) if data then return mw.text.nowiki(typeData and typeData['color'] or lineData and lineData['color'] or defaultData and defaultData['color'] ) else return frame:expandTemplate endendp.icon = makeInvokeFunc('_icon')function p._icon(args, frame) if data then local s = typedata and typeData['icon'] or lineData and lineData['icon'] or data and data['system icon'] return args.link and (string.gsub(s, '%[%[(.*)|.*%]%]', args.link)) or s else return frame:expandTemplate endendp.box = makeInvokeFunc('_box')function p._box(args, frame) local root, style = mw.html.create('div'), args.style local colour, lineTitle = p._color(args, frame), p._line(args, frame) if colour then colour = string.match(colour, '#') and colour or '#' .. colour end if args.line then args.line = dig(data, 'lines', args.line) and args.line or dig(data, 'aliases', string.lower(args.line)) end local box = mw.html.create('span') if style

nil then root :addClass('legend') :css('-webkit-column-break-inside', 'avoid') :css('page-break-inside', 'avoid') :css('break-inside', 'avoid-column') box :addClass('legend-color') :css('display', 'inline-block') :css('width', '1.5em') :css('height', '1.5em') :css('margin', '1px') end if style

'dot' or style

'ldot' or style

'square' or style

'lsquare' then box:css('line-height', 'initial') end if style

'dot' or style

'ldot' or style

'square' or style

'lsquare' or style

'xroute' then box:css('color', colour) else box:css('background-color', colour) end if style

nil or style

'link' or style

'inline' or style

'yes' or style

'box' then box:css('border', '1px solid black') elseif style and string.match(style, 'route') then box :css('border', '.075em solid ' .. (typeData and typeData['border color'] or lineData and lineData['border color'] or colour ) ) :css('padding', '0 .3em') if style ~= 'route' then box:css('border-radius', '.5em') end end if style and string.match(style, 'route') then box :css('color', typeData and typeData['text color'] or lineData and lineData['text color'] or style

'xroute' and colour or 'white' ) :css('font-weight', args.bold

'no' or 'bold') :css('font-size', 'inherit') :css('white-space', 'nowrap') end local boxText = box:wikitext(boxText[style] or string.rep(' ',1)) if style

'link' or style

'ldot' or style

'lsquare' or style and string.match(style, 'route') then if string.match(lineTitle, '|') then root:wikitext((string.gsub(lineTitle, '%[%[.*|(.*)%]%]', tostring(box)))) else root:wikitext((string.gsub(lineTitle, '%]%]', '|' .. tostring(box) .. ']]'))) end elseif style

'box' then root:wikitext(tostring(box)) else root:wikitext(tostring(box), ' ', lineTitle) end return rootendp.main = makeInvokeFunc('_adjacent')p.adjacent = makeInvokeFunc('_adjacent')function p._adjacent(args) local yesNo = require('Module:Yesno') local i18n = require('Module:Adjacent stations/i18n') local root, lang = mw.html.create('table'), 'en-GB' root:addClass('wikitable adjacent-stations') local function renderHeader(stopNoun, systemIcon, systemTitle) root :tag('tr') :tag('th') :addClass('hcA') :wikitext(i18n[lang]['preceding'](stopNoun)) :done :tag('th') :attr('colspan', 3) :css('vertical-align', 'middle') :wikitext(systemIcon and systemIcon .. ' ' .. systemTitle or systemTitle) :done :tag('th') :addClass('hcA') :wikitext(i18n[lang]['following'](stopNoun)) end local function renderSubHeader(subHeader) root :tag('tr') :tag('th') :attr('colspan', 5) :addClass('hmA') :wikitext(subHeader) end local function renderSideCell(row, rowSpan, adjacent, terminus, oneWay, circular, through, Reverse, note) local mainText, subText = mw.html.create('div') if adjacent then mainText:wikitext(adjacent) subText = mw.html.create('div') subText:addClass('isA') if adjacent

terminus then subText:wikitext('Terminus') else subText:wikitext(oneWay and 'one-way operation' or circular and terminus or i18n[lang]['towards'](terminus)) end else mainText:css('font-style', 'italic') mainText:wikitext(Reverse and 'Reverses direction' or through and i18n[lang]['through'](through) or 'Terminus') end row :tag('td') :attr('rowspan', rowSpan) :addClass('bcA') :node(mainText) :tag('div') :css('font-size', 'smaller') :wikitext(note) :done :node(subText) end local function renderMidCells(row, rowSpan, colour, backgroundColour, lineTitle, typeTitle, note, transfer) if colour then colour = string.match(colour, '#') and colour or '#' .. colour end row :tag('td') :attr('rowspan', rowSpan) :addClass('bbA') :css('background-color', colour) :done :tag('td') :attr('rowspan', rowSpan) :addClass('bcA') :css('background-color', backgroundColour) :wikitext(lineTitle) :tag('div') :wikitext(typeTitle) :done :tag('div') :css('font-size', 'smaller') :wikitext(note) :done :tag('div') :addClass('isA') :wikitext(i18n[lang]['transfer'](transfer)) :done :done :tag('td') :attr('rowspan', rowSpan) :addClass('bbA') :css('background-color', colour) end local function renderNonStopRow(title, colour, isFormer) if colour then colour = string.match(colour, '#') and colour or '#' .. colour end root :tag('tr') :tag('td') :attr('colspan', 5) :addClass('bcA') :tag('div') :tag('span') :css('border', '1px solid black') :css('background-color', colour) :wikitext(string.rep(' ', 4)) :done :wikitext(' ', isFormer

true and i18n[lang]['nonstop_past'](title) or i18n[lang]['nonstop_present'](title)) end local function renderNoteRow(note) root :tag('tr') :tag('td') :attr('colspan', 5) :addClass('bcA') :wikitext(note) end local function makeTerminusFunc(n, fallback) return function (side) local termini = fallback(side .. ' terminus') if type(termini)

'string' then return stationTitle(termini, args[n]['line'], args[n]['type'], n) elseif type(termini)

'table' then local i, t, to = 1,, args[n]['to-' .. side] or args[n]['to'] while termini[i] and to ~= termini[i] do t[i] = stationTitle(termini[i], args[n]['line'], args[n]['type'], n) i = i + 1 end return stationTitle(termini[i], args[n]['line'], args[n]['type'], n) or mw.text.listToText(t, nil, ' or ') end end end data = local j, k, l = 2, 2, 2 for i, v in ipairs(args) do args[i]['system'] = args[i]['system'] or args[i - 1]['system'] data[i] = mw.loadData('Module:Adjacent stations/' .. args[i]['system']) lang = data[i]['lang'] or 'en-GB' defaultData = function (n) return dig(data[n], 'lines', '_default') end if args[i]['line'] then args[i]['line'] = dig(data[i], 'lines', args[i]['line']) and args[i]['line'] or dig(data[i], 'aliases', string.lower(args[i]['line'])) or error(i18n[lang]['error_unknown'](args[i]['line'])) else args[i]['line'] = i

1 and '_default' or args[i - 1]['line'] end lineData = function (n, line) return dig(data[n], 'lines', line or v.line) or dig(data[n], 'lines', dig(data[n], 'aliases', string.lower(line or v.line))) end typeData = function (n) return dig(lineData(n), 'types', v['type']) end local function fallback(parameter, n) return dig(typeData(n or i), parameter) or dig(lineData(n or i), parameter) or dig(defaultData(n or i), parameter) end local terminus = makeTerminusFunc(i, fallback) if i

1 or args[i]['system'] ~= args[i - 1]['system'] then renderHeader(data[i]['header stop noun'] or i18n[lang]['stop_noun'], data[i]['system icon'], data[i]['system title'] or '' .. args[i]['system'] .. '' ) end if v.header then renderSubHeader(v.header) end if v.nonstop then renderNonStopRow(fallback('title'), fallback('color'), v.nonstop

'former') else local row = root:tag('tr') if i > j - 2 then while args[j] and args[j]['left']

args[i]['left'] and args[j]['to-left']

args[i]['to-left'] and args[j]['oneway-left']

args[i]['oneway-left'] and args[j]['note-left']

args[i]['note-left'] and (args[j]['through-left'] or args[j]['through'])

(args[i]['through-left'] or args[i]['through']) and (args[j]['reverse-left'] or args[j]['reverse'])

(args[i]['reverse-left'] or args[i]['reverse']) and fallback('oneway-left', j)

fallback('oneway-left') and fallback('circular', j)

fallback('circular') and not args[j]['nonstop'] and not args[j]['note-row'] do j = j + 1 end renderSideCell(row, j - i, stationTitle(v.left, v.line, v['type'], i), yesNo(fallback('circular')) and fallback('left terminus') or terminus('left'), yesNo(v['oneway-left'] or fallback('oneway-left')), yesNo(fallback('circular')), (v['through-left'] or v['through']) and dig(lineData(i, v['through-left'] or v['through']), 'title'), yesNo(v['reverse-left'] or v['reverse']), v['note-left'] ) j = j + 1 end if i > k - 2 then while args[k] and args[k]['line']

args[i]['line'] and args[k]['type']

args[i]['type'] and args[k]['note-mid']

args[i]['note-mid'] and not args[k]['nonstop'] and not args[k]['note-row'] do k = k + 1 end renderMidCells(row, k - i, fallback('color'), fallback('background color'), lineData(i)['title'] or (string.gsub(dig(defaultData(i), 'title'), '%%1', v.line)), typeData(i) and typeData(i)['title'], v['note-mid'] or lineData(i)['note-mid'], stationTitle(v.transfer, v.line, v['type'], i) ) k = k + 1 end if i > l - 2 then while args[l] and args[l]['right']

args[i]['right'] and args[l]['to-right']

args[i]['to-right'] and args[l]['oneway-right']

args[i]['oneway-right'] and args[l]['note-right']

args[i]['note-right'] and (args[l]['through-right'] or args[l]['through'])

(args[i]['through-right'] or args[i]['through']) and (args[l]['reverse-right'] or args[l]['reverse'])

(args[i]['reverse-right'] or args[i]['reverse']) and fallback('oneway-right', l)

fallback('oneway-right') and fallback('circular', l)

fallback('circular') and not args[l]['nonstop'] and not args[l]['note-row'] do l = l + 1 end renderSideCell(row, l - i, stationTitle(v.right, v.line, v['type'], i), yesNo(fallback('circular')) and fallback('right terminus') or terminus('right'), yesNo(v['oneway-right'] or fallback('oneway-right')), yesNo(fallback('circular')), (v['through-right'] or v['through']) and dig(lineData(i, v['through-right'] or v['through']), 'title'), yesNo(v['reverse-right'] or v['reverse']), v['note-right'] ) l = l + 1 end end if v['note-row'] then renderNoteRow(v['note-row']) end end return rootendfunction p.convert(frame) local args = frame.args local code = mw.text.split(mw.ustring.gsub(args[1], '^%s*%s*$', '%1'), '%s*}}%s*