Editing Module:Dict D'ni

--
-- This module implements {{D'ni Word Entry}}
--
 
local p = {}

local args = {}
local origArgs
local root

local function getArgNums(prefix)
    -- Returns a table containing the numbers of the arguments that exist
    -- for the specified prefix. For example, if the prefix was 'data', and
    -- 'data1', 'data2', and 'data5' exist, it would return {1, 2, 5}.
    local nums = {}
    for k, v in pairs(args) do
        local num = tostring(k):match('^' .. prefix .. '([1-9]%d*)$')
        if num then table.insert(nums, tonumber(num)) end
    end
    table.sort(nums)
    return nums
end

local function _dni_entry()

        local output = ''
        local sort = dnifont2ots(mw.ustring.sub(args['dnifont'],1,1))        

        output = output..'==D\'ni==\n'
        output = output..'{{huge|<d\'ni>'..args['dnifont']..'</d\'ni>}}\n'
        output = output..'===Romanization==='
        output = output..'* [[Dnifont]]: '..args['dnifont']..'\n'
        output = output..'* [[OTS]]: '..dnifont2ots(args['dnifont'])..'\n'
        output = output..'* [[NTS]]: '..dnifont2nts(args['dnifont'])..' '
        output = output..'[[Category:D\'ni words beginning with '..sort..']]\n'
        output = output..'[[Category:D\'ni words|'..sort..']]'

    return output
end

local function preprocessSingleArg(argName)
    -- If the argument exists and isn't blank, add it to the argument table.
    -- Blank arguments are treated as nil to match the behaviour of ParserFunctions.
    if origArgs[argName] and origArgs[argName] ~= '' then
        args[argName] = origArgs[argName]
    end
end

local function preprocessArgs(prefixTable, step)
    -- Assign the parameters with the given prefixes to the args table, in order, in batches
    -- of the step size specified. This is to prevent references etc. from appearing in the
    -- wrong order. The prefixTable should be an array containing tables, each of which has
    -- two possible fields, a "prefix" string and a "depend" table. The function always parses
    -- parameters containing the "prefix" string, but only parses parameters in the "depend"
    -- table if the prefix parameter is present and non-blank.
    if type(prefixTable) ~= 'table' then
        error("Non-table value detected for the prefix table", 2)
    end
    if type(step) ~= 'number' then
        error("Invalid step value detected", 2)
    end
    
    -- Get arguments without a number suffix, and check for bad input.
    for i,v in ipairs(prefixTable) do
        if type(v) ~= 'table' or type(v.prefix) ~= "string" or (v.depend and type(v.depend) ~= 'table') then
            error('Invalid input detected to preprocessArgs prefix table', 2)
        end
        preprocessSingleArg(v.prefix)
        -- Only parse the depend parameter if the prefix parameter is present and not blank.
        if args[v.prefix] and v.depend then
            for j, dependValue in ipairs(v.depend) do
                if type(dependValue) ~= 'string' then
                    error('Invalid "depend" parameter value detected in preprocessArgs')
                end
                preprocessSingleArg(dependValue)
            end
        end
    end

    -- Get arguments with number suffixes.
    local a = 1 -- Counter variable.
    local moreArgumentsExist = true
    while moreArgumentsExist == true do
        moreArgumentsExist = false
        for i = a, a + step - 1 do
            for j,v in ipairs(prefixTable) do
                local prefixArgName = v.prefix .. tostring(i)
                if origArgs[prefixArgName] then
                    moreArgumentsExist = true -- Do another loop if any arguments are found, even blank ones.
                    preprocessSingleArg(prefixArgName)
                end
                -- Process the depend table if the prefix argument is present and not blank, or
                -- we are processing "prefix1" and "prefix" is present and not blank, and
                -- if the depend table is present.
                if v.depend and (args[prefixArgName] or (i == 1 and args[v.prefix])) then
                    for j,dependValue in ipairs(v.depend) do
                        local dependArgName = dependValue .. tostring(i)
                        preprocessSingleArg(dependArgName)
                    end
                end
            end
        end
        a = a + step
    end
end
 
function p.dict_entry(frame)
    -- 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
    
    -- Parse the data parameters
    preprocessSingleArg('dnifont')

    return frame:preprocess(_dni_entry())
end

function p.dnifont2ots(str)

    local output = mw.text.trim(str)
    
    output = output:gsub("%S+", {["S"] = "sh", 
                                 ["T"] = "th", 
                                 ["O"] = "oy", 
                                 ["c"] = "ch", 
                                 ["a"] = "ah", 
                                 ["E"] = "ee", 
                                 ["A"] = "ay", 
                                 ["u"] = "uh",
                                 ["U"] = "oo",
                                 ["x"] = "ts",
                                 ["d"] = "dh",
                                 ["D"] = "d",
                                 ["k"] = "kh",
                                 ["K"] = "k",
                                 ["I"] = "ai",
                                 ["å"] = "a",
                                })

     return output
end
 
function p.dnifont2nts(str)

    local output = mw.text.trim(str)
    
    output = output:gsub("%S+", {["S"] = "š", 
                                 ["T"] = "þ", 
                                 ["O"] = "ó", 
                                 ["c"] = "ç", 
                                 ["E"] = "i", 
                                 ["A"] = "é", 
                                 ["U"] = "ú",
                                 ["x"] = "c",
                                 ["d"] = "ð",
                                 ["D"] = "d",
                                 ["k"] = "x",
                                 ["K"] = "k",
                                 ["I"] = "á",
                                 ["å"] = "æ",
                                })

     return output
end

return p