Module:Jctint/core
Documentation for this module may be created at Module:Jctint/core/doc
local p = {} -- Package to be exported
-- Local version of string formatting function
local format = mw.ustring.format
-- Store this function in a local variable to avoid expensive table lookups.
local insert = table.insert
-- mw.html object for the generated row
local row
-- Default row span for all columns (`jspan` = "junction span")
local jspan
-- Any error messages produced that will be added to the output
local errorMsg = {}
-- A specification for self-closing HTML tag.
local selfClosing = {selfClosing = true}
---
-- Converts the distance specified in unit from `unit` specified in `unitdef`
-- to the other supported unit.
local function convert(unit, unitdef)
if unit == nil or unitdef == nil then return {} end
-- Import module to convert length.
local util = require("Module:Road data/util")
local lengths = util.convertLengths({[unitdef] = unit})
if lengths.error then -- An error occurred during conversion.
-- Add the transcluding page to an error tracking category.
local page = mw.title.getCurrentTitle() -- Get transcluding page's title
local pagename = page.prefixedText -- Extract page's full title as string
-- Create category string
local category = format("[[Category:Jctint template using non-numeric parameter values|# %s]]", pagename)
insert(errorMsg, category) -- Add error category to error message table.
end
return lengths
end
--- Creates cells for the location columns.
local function locations(args)
-- Unitary, e.g., state line
local unitary = args.unitary -- Value to span all of the location columns
if unitary then
-- Text alignment of the cell contents, default to "left".
local align = args.unitary_align or 'left'
row:tag('td') -- Create unitary cell
:attr('colspan', 3) -- spanning three possible columns
:css('text-align', align)
:wikitext(unitary) -- Store the contents of unitary in the cell.
return
end
-- Create cells for regular location columns.
-- Region, for disambiguation and potentially for display
local region = args.region
if region or args.region_special then
-- Row span for region; must be specified to display a region cell.
local regionSpan = args.regionspan
if regionSpan then
row:tag('td') -- Create a region cell
:attr('rowspan', regionSpan)
-- Store region text in the cell.
-- `region_special` argument overrides wikilinked `region` argument.
:wikitext(args.region_special or format("[[%s]]", region))
end
end
-- Primary topic requires no specialization to supplied locations.
local primaryTopic = args.primary_topic ~= 'no'
-- Note below main text in the next column
local sub1note = args.sub1_note -- check existence later
-- Row span for the last location column, default to `jspan`
local sub2span = args.sub2span or jspan
-- Independent city
local indepCityText -- Value to span both subdivision columns.
if args.indep_city_special then
indepCityText = args.indep_city_special -- Overrides `indep_city` argument.
elseif args.indep_city then
local indepCity = args.indep_city
local cityLink -- Wikilink for independent city
if primaryTopic then
cityLink = format('[[%s]]', indepCity)
elseif region then
-- Specialize independent city to the region.
cityLink = format('[[%s, %s|%s]]', indepCity, region, indepCity)
end
if cityLink then
indepCityText = "[[Independent city|City]] of " .. cityLink
end
end
if indepCityText then -- Display independent city.
-- Text alignment of the cell contents, default to "left".
local align = args.indep_city_align or 'left'
local indepCityCell = row:tag('td') -- Create independent city cell
:attr('colspan', 2) -- spanning two columns
:attr('rowspan', sub2span) -- with the calculated row span.
:css('text-align', align)
:wikitext(indepCityText) -- Store the independent city in the cell.
if sub1note then -- A note is provided.
indepCityCell:tag('br', selfClosing) -- Add a line break to the cell.
-- Add the note to the cell, within an HTML <small> tag.
indepCityCell:tag('small'):wikitext(sub1note)
end
return
end
-- Create two cells for the first- and second-level subdivisions.
-- First-level subdivision, e.g., county
-- Name of the type of subdivision, e.g., "County" and "Parish"
local sub1name = args.sub1name -- check existence later
local sub1Text -- Value for first-level subdivision column.
if args.sub1_special then
sub1Text = args.sub1_special -- Overrides `sub1` argument.
elseif args.sub1 then
local sub1 = args.sub1
if primaryTopic then
-- Add type (if specified) to wikilink for first-level subdivision.
local sub1Link = sub1name and format("%s %s", sub1, sub1name) or sub1
sub1Text = format('[[%s|%s]]', sub1Link, sub1)
elseif region and sub1name then
-- Specialize first-level subdivision, with type added, to the region.
sub1Text = format('[[%s %s, %s|%s]]', sub1, sub1name, region, sub1)
end
end
if sub1Text then -- Display first-level subdivision.
-- Row span for first-level subdivision, default to `jspan`.
local sub1span = args.sub1span or jspan
local sub1Cell = row:tag('td') -- Create first-level subdivision cell
:attr('rowspan', sub1span) -- with the calculated row span.
:wikitext(sub1Text) -- Store the first-level subdivision in the cell.
if sub1note then -- A note is provided.
sub1Cell:tag('br', selfClosing) -- Add a line break to the cell.
-- Add the note to the cell, within an HTML <small> tag.
sub1Cell:tag('small'):wikitext(sub1note)
end
end
-- Second-level subdivision, e.g., city and town
local sub2Text -- Value for second-level subdivision column.
if args.sub2_special then
sub2Text = args.sub2_special -- Overrides `sub2` argument.
elseif args.sub2 then
local sub2 = args.sub2
if sub2 == "none" or sub2 == " " then
sub2Text = "​" -- Zero-width space
elseif primaryTopic then
sub2Text = format("[[%s]]", sub2)
else
local sub2Link = {sub2}
local sub2Name = sub2
-- Type of area, e.g., city and village, as a form of disambiguation
local area = args.area
if area then
insert(sub2Link, format(' (%s)', area)) -- Add area to wikilink.
local areas = { -- table of different area types
village = "Village",
city = "City",
town = "Town",
community = "Community",
CDP = "Community",
hamlet = "Hamlet",
["unorganized territory"] = "Unorganized Territory"
}
-- Add area name to displayed wikitext.
sub2Name = format("%s of %s", areas[area], sub2Name)
end
insert(sub2Link, ", ")
-- Some second-level subdivisions are not unique in a given region.
-- `sub1dab` is the first-level subdivision to be used for disambiguation.
local sub1dab = args.sub1dab
if sub1dab and sub1name then
insert(sub2Link, format('%s %s, ', sub1dab, sub1name))
end
if region then
insert(sub2Link, region) -- Add region to wikilink
end
sub2Text = format("[[%s|%s]]", table.concat(sub2Link), sub2Name)
end
end
if sub2Text then -- Display second-level subdivision.
row:tag('td') -- Create second-level subdivision cell
:attr('rowspan', sub2span) -- with the calculated row span.
:wikitext(sub2Text) -- Store the second-level subdivision in the cell.
end
end
--- Creates cells for the distance columns.
local function units(args)
-- Alternate units, e.g., California's postmiles.
local alt_unit = args.altunit
if alt_unit then -- Alternate units override standard units.
-- Row span (`auspan` = "alt[ernate] unit span")
local auspan = args.auspan or jspan
-- Create the alternate unit cell as a header cell for the row,
-- since it is usually unique within the table.
row:tag('th'):attr('scope', 'row')
:css('text-align', 'right')
:attr('rowspan', auspan)
:wikitext(alt_unit) -- Store the contents of alt_unit in the cell.
else
-- Convert numeric distances to a secondary unit, and display both units.
-- Distance in the primary unit, or 'none'
local unit = args.unit
-- If `unit` is "none", no cells are displayed.
if unit == "none" then return end
local unitdef = args.unitdef or "km" -- The primary unit ('mi' or 'km')
-- Convert and format the distance.
local lengths = convert(unit, unitdef)
-- Row span (`uspan` = "unit span")
local uspan = args.uspan or jspan
-- Create the primary unit cell as a header cell for the row,
-- since it is usually unique within the table.
local primary = row:tag('th'):attr('scope', 'row')
:css('text-align', 'right')
:attr('rowspan', uspan)
-- Store the primary distance and any conversion error message in the cell.
:wikitext(lengths[lengths.orig], lengths.error)
local secondary = row:tag('td') -- Create the secondary unit cell.
:css('text-align', 'right')
:css('background-color', '#eaecf0')
:attr('rowspan', uspan)
:wikitext(lengths[lengths.comp]) -- Store the secondary distance in the cell.
local unit2 = args.unit2
if unit2 then -- A second distance is provided.
local line = args.line -- A horizontal rule may be requested between the distances.
if line then
-- Add a horizontal rule to both cells.
primary:tag('hr', selfClosing)
secondary:tag('hr', selfClosing)
else
-- Add an en-dash and a line break to both cells.
primary:wikitext('–'):tag('br', selfClosing)
secondary:wikitext('–'):tag('br', selfClosing)
end
-- Convert and format the second distance.
local lengths2 = convert(unit2, unitdef)
-- Add the second distance and any conversion error message to the primary distance cell.
primary:wikitext(lengths2[lengths2.orig], lengths2.error)
-- Add the converted second distance to the secondary distance cell.
secondary:wikitext(lengths2[lengths2.comp])
end
local unit_ref = args.unit_ref
if unit_ref then -- A reference is provided for the distance.
primary:wikitext(unit_ref) -- Add reference to the primary distance cell.
end
end
end
-- Color specified by any supplied type
local color
-- Tooltip specified by any supplied type
local title
--- Apply any type-derived coloring and tooltip to the given cell.
local function applyTypeStyle(cell)
cell:attr('title', title):css('background-color', color)
end
--- Creates a cell for places, such as bridges and rest areas.
local function place(args)
local place = args.place -- Contents of the place cell
-- Do nothing if `place` is "none"
if place == "none" then return end
local colspan = 2 -- Initial column span
local exit = args[1] -- Whether this table has exit number columns
local named = args[2] -- Whether this table has named junction column
-- Adjust column span
if exit == "old" then colspan = colspan + 2
elseif exit == "exit" then colspan = colspan + 1
end
if named == "name" then colspan = colspan + 1 end
-- Row span (`pspan` = "place span")
local pspan = args.pspan or jspan
local placeCell = row:tag('td') -- Create place cell
:css('text-align', 'center')
:attr('colspan', colspan)
:attr('rowspan', pspan)
:wikitext(place) -- Store the place in the cell
applyTypeStyle(placeCell)
end
--- Creates cells for exit number and named junction columns.
local function exits(args)
local exit = args[1] -- 'exit', 'old', or nil
local named = args[2] -- 'name' or nil
if exit == 'old' then -- Add old exit number cell
-- Row span (`ospan` = "old span")
local ospan = args.ospan or jspan
row:tag('td') -- Create old exit number cell
:css('text-align', 'center')
:css('background-color', '#d3d3d3')
:attr('title', 'Former exit number')
:attr('rowspan', ospan)
:wikitext(args.old) -- Store the old exit number in the cell
end
if exit then -- "exit" or "old" is defined; add current exit number cell
-- Row span (`espan` = "exit span")
local espan = args.espan or jspan
local exitCell = row:tag('td') -- Create exit number cell
:css('text-align', 'center')
:attr('rowspan', espan)
:wikitext(args.exit) -- Store the exit number in the cell
applyTypeStyle(exitCell)
end
if named then -- Junction list has a junction name column
local namespan = args.namespan or jspan -- Row span
local nameCell = row:tag('td') -- Create junction name cell
:attr('rowspan', namespan)
:wikitext(args.name) -- Store the junction name in the cell
applyTypeStyle(nameCell)
end
end
--- Creates cell for the destinations column.
local function destinations(args)
local road = args.road -- Contents of the destinations cell
-- Do nothing if `road` is "none"
if road == "none" then return end
-- Column span (`rcspan` = "road column span"), default to 1
local rcspan = args.rcspan or 1
-- Row span (`rspan` = "road span")
local rspan = args.rspan or jspan
local destCell = row:tag('td') -- Create destination cell
:attr('colspan', rcspan)
:attr('rowspan', rspan)
:wikitext(road) -- Store the destination in the cell
applyTypeStyle(destCell)
end
--- Creates cell for the notes column.
local function notes(args)
local notes = args.notes -- Contents of the notes cell
-- Do nothing if `notes` is "none"
if notes == "none" then return end
-- Row span (`nspan` = "notes span")
local nspan = args.nspan or jspan
local notesCell = row:tag('td') -- Create notes cell
:attr('rowspan', nspan)
:wikitext(notes) -- Store the notes in the cell
applyTypeStyle(notesCell)
end
---
-- Returns a row in the junction list.
-- Accessible from other Lua modules
function p._jctint(args)
jspan = args.jspan or 1 -- Global row span for all columns; defaults to 1
-- {{{type}}} argument to determine color and tooltips
local argType = args.type
if argType then -- {{{type}}} was passed
-- Type-based data for colors and tooltips
local types = mw.loadData("Module:Road data/RJL types")
local typeData = types[string.lower(argType)] -- Retrieve the type data
if typeData then
color = typeData.color -- Store the color globally
title = typeData.jctint -- Store the tooltip globally
else
-- Add error category to error message table.
local page = mw.title.getCurrentTitle() -- Get transcluding page's title
local pagename = page.prefixedText -- Extract page's full title as string
insert(errorMsg,
format("[[Category:Jctint template with invalid type|%s]]", pagename))
end
end
local root = mw.html.create() -- Create the root mw.html object to return
-- Create the table row and store it globally
row = root:tag('tr'):css('text-align', 'left')
locations(args) -- Handle location arguments
units(args) -- Handle distance arguments
if args.place then -- {{{place}}} spans all columns to the right of the distances
place(args) -- Create cell for place
else
exits(args) -- Handle exit/named junction arguments
destinations(args) -- Handle destinations
notes(args) -- Handle notes
end
-- Return the HTML code in the mw.html object as a string, plus any error messages
return tostring(root) .. table.concat(errorMsg)
end
--- Entry function for {{jctint/core}}
function p.jctint(frame)
-- Import module function to work with passed arguments
local getArgs = require('Module:Arguments').getArgs
-- Gather passed arguments into easy-to-use table
local args = getArgs(frame)
return p._jctint(args)
end
return p -- Return package