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Difference between revisions of "Module:Calc"

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m
Line 128: Line 128:
 
     end
 
     end
 
end
 
end
 +
 +
local special_functions = {
 +
    apply = function(args)
 +
        local template = args[2]
 +
        local values = {}
 +
        for i = 3, #args do
 +
            table.insert(values, frame:preprocess(format{
 +
                '{{${template}|${arg}}}',
 +
                template = template,
 +
                arg = args[i]
 +
            }))
 +
        end
 +
        return table.concat(values, args.concat or "")
 +
    end
 +
}
  
 
function interpret_args(args_)
 
function interpret_args(args_)
 
     args = args_
 
     args = args_
     local values = {}
+
     local special_function = special_functions[args[1]]
    repeat
+
    if special_function then
        for _, arg in ipairs(args_) do
+
        return special_function(args)
            local value = interpret_arg(arg)
+
    else
            if value then
+
        local values = {}
                table.insert(values, value)
+
        repeat
 +
            for _, arg in ipairs(args_) do
 +
                local value = interpret_arg(arg)
 +
                if value then
 +
                    table.insert(values, value)
 +
                end
 
             end
 
             end
         end
+
         until not sequence or sequence_position > #sequence
    until not sequence or sequence_position > #sequence
+
        return table.concat(values, args.concat or "")
    return table.concat(values, args.concat or "")
+
    end
 
end
 
end
  
Line 151: Line 171:
  
 
function Calc.test()
 
function Calc.test()
 
 
end
 
end
  
 
return Calc
 
return Calc

Revision as of 20:38, 29 October 2017

Documentation for this module may be created at Module:Calc/doc

local Utils = require("Module:Utils")
local format = require("Module:StringOperations").format
local Formatting = require("Module:Formatting")
local Ship = require("Module:Ship")
local ShipIterator = require("Module:ShipIterator")

local args = nil
local ship = nil
local frame = nil

local enumerating_functions = {

    args = function()
        return mw.text.split(args.args, "%s*,%s*")
    end,

    base_names = function()
        return ShipIterator.baseForms
    end,

    all_names = function()
        return ShipIterator.allForms
    end,
    
    enemy = function()
        return ShipIterator.enemyForms
    end,

}

-- TODO: have a syntax for calling Module:Formatting functions?
local formatting_functions = {

    night_battle_power = function(ship)
        return (ship:firepower_max() or 0) + (ship:torpedo_max() or 0)
    end,
    
    code = function(ship)
        return Formatting:format_ship_code(ship:type())
    end,

    -- overrides ShipData:type
    type = function(ship)
        return Formatting:format_ship_type(ship:type())
    end,

    -- overrides ShipData:link
    link = function(ship)
        return Formatting:format_link(ship:link())
    end,

    -- overrides ShipData:implementation_date
    implementation_date = function(ship)
        local date = ship:implementation_date()
        return not date and "??" or format{
            "${year}/${month}/${day}",
            year = date[1],
            month = date[2] < 10 and "0" .. date[2] or date[2],
            day = date[3] < 10 and "0" .. date[3] or date[3],
        }
    end,

}

function format_lua(lua)
    if type(lua) == "table" then
        return tostring(table.concat(lua, args.concat_value or ", "))
    else
        return tostring(lua)
    end
end

function format_value(key)
    local formatting_function = formatting_functions[key]
    if formatting_function then
        return formatting_function(ship)
    else
        local lua = ship[key]
        if type(lua) == "function" then
            return format_lua(lua(ship))
        else
            return format_lua(lua)
        end
    end
end

local sequence = nil
local sequence_position = nil

function interpret_arg(arg)
    local prefix = string.sub(arg, 1, 1)
    if prefix == "@" then
        local enumerator = string.sub(arg, 2)
        local enumerating_function = enumerating_functions[enumerator]
        if enumerating_function and not sequence then
            sequence = enumerating_function()
            sequence_position = 1
        end
    elseif arg == "!@" then
        local ship_key = sequence[sequence_position]
        sequence_position = sequence_position + 1
        ship = Ship(ship_key)
    elseif prefix == "!" then
        local ship_key = string.sub(arg, 2)
        ship = Ship(ship_key)
    elseif prefix == "#" and args.format == "table" then
        return "|-\n"
    elseif prefix == "?" then
        prefix = string.sub(arg, 2, 2)
        if prefix == "?" then
            local key = string.sub(arg, 3)
            return frame:preprocess(format{
                '{{${template}|${ship}}}',
                template = key,
                ship = ship:name('/')
            })
        else
            local key = string.sub(arg, 2)
            local value = format_value(key)
            if args.format == "table" then
                return "|" .. value .. "\n"
            else
                return value
            end
        end
    else
        return arg
    end
end

local special_functions = {
    apply = function(args)
        local template = args[2]
        local values = {}
        for i = 3, #args do
            table.insert(values, frame:preprocess(format{
                '{{${template}|${arg}}}',
                template = template,
                arg = args[i]
            }))
        end
        return table.concat(values, args.concat or "")
    end
}

function interpret_args(args_)
    args = args_
    local special_function = special_functions[args[1]]
    if special_function then
        return special_function(args)
    else
        local values = {}
        repeat
            for _, arg in ipairs(args_) do
                local value = interpret_arg(arg)
                if value then
                    table.insert(values, value)
                end
            end
        until not sequence or sequence_position > #sequence
        return table.concat(values, args.concat or "")
    end
end

local Calc = {}

function Calc.format(frame_, args_)
    frame = frame_
    return interpret_args(args_ or Utils.getTemplateArgs(frame_).explicit)
end

function Calc.test()
end

return Calc