Module:Sandbox/Arcangelus
Revision as of 03:09, 11 August 2024 by Arcangelus (talk | contribs)
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Description
This is a doc attached to my sandbox. I'll use it to see the effects of my changes W/o messing something important
NOTE: LUA is usually slower than ParserFunctions for short statements. The factor varies from 7-1 to 2-1.
Lua only is an advantage to long statements, nested logic, loops (maybe others case i don't see right now).
expr only uses 1 Preprocessor visited node count, in general. Variables may change that.
function p._TableRow(skillBase, skillBonus, statMin, statMax, capImportance, capLimit, resultCols, LV, Ln)
local yesno, getArgs -- lazily initialized
local p = {}
local wrap = {} -- Holds wrapper functions that process arguments from #invoke. These act as intemediary between functions meant for #invoke and functions meant for Lua.
--Copied from https://en.wikipedia.org/wiki/Module:Math
local function err(msg)
-- Generates wikitext error messages.
return mw.ustring.format('<strong class="error">Formatting error: %s</strong>', msg)
end
local function unpackNumberArgs(args)
-- Returns an unpacked list of arguments specified with numerical keys.
local ret = {}
for k, v in pairs(args) do
if type(k) == 'number' then
table.insert(ret, v)
end
end
return unpack(ret)
end
local function makeArgArray(...)
-- Makes an array of arguments from a list of arguments that might include nils.
local args = {...} -- Table of arguments. It might contain nils or non-number values, so we can't use ipairs.
local nums = {} -- Stores the numbers of valid numerical arguments.
local ret = {}
for k, v in pairs(args) do
v = p._cleanNumber(v)
if v then
nums[#nums + 1] = k
args[k] = v
end
end
table.sort(nums)
for i, num in ipairs(nums) do
ret[#ret + 1] = args[num]
end
return ret
end
local function fold(func, ...)
-- Use a function on all supplied arguments, and return the result. The function must accept two numbers as parameters,
-- and must return a number as an output. This number is then supplied as input to the next function call.
local vals = makeArgArray(...)
local count = #vals -- The number of valid arguments
if count == 0 then return
-- Exit if we have no valid args, otherwise removing the first arg would cause an error.
nil, 0
end
local ret = table.remove(vals, 1)
for _, val in ipairs(vals) do
ret = func(ret, val)
end
return ret, count
end
--[[
function p.hello()
return 'Hola'
end
aname=string.match("Blood Filtration Limit",' %(.*)% ')
return p
]]
--[[
Fold arguments by selectively choosing values (func should return when to choose the current "dominant" value).
]]
local function binary_fold(func, ...)
local value = fold((function(a, b) if func(a, b) then return a else return b end end), ...)
return value
end
--[[
sum
Finds the sum
Usage:
{{#invoke:Math| sum | value1 | value2 | ... }}
OR
{{#invoke:Math| sum }}
Note, any values that do not evaluate to numbers are ignored.
]]
function wrap.sum(args)
return p._sum(unpackNumberArgs(args))
end
function p._sum(...)
local sums, count = fold((function(a, b) return a + b end), ...)
if not sums then
return 0
else
return sums
end
end
--[[
average
Finds the average
Usage:
{{#invoke:Math| average | value1 | value2 | ... }}
OR
{{#invoke:Math| average }}
Note, any values that do not evaluate to numbers are ignored.
]]
function wrap.average(args)
return p._average(unpackNumberArgs(args))
end
function p._average(...)
local sum, count = fold((function(a, b) return a + b end), ...)
if not sum then
return 0
else
return sum / count
end
end
--[[
round
Rounds a number to specified precision
Usage:
{{#invoke:Math | round | value | precision }}
--]]
function wrap.round(args)
local value = p._cleanNumber(args[1] or args.value or 0)
local precision = p._cleanNumber(args[2] or args.precision or 0)
if value == nil or precision == nil then
return err('round input appears non-numeric')
else
return p._round(value, precision)
end
end
function p._round(value, precision)
local rescale = math.pow(10, precision or 0);
return math.floor(value * rescale + 0.5) / rescale;
end
--[[
log10
returns the log (base 10) of a number
Usage:
{{#invoke:Math | log10 | x }}
]]
function wrap.log10(args)
return math.log10(args[1])
end
--[[
mod
Implements the modulo operator
Usage:
{{#invoke:Math | mod | x | y }}
--]]
function wrap.mod(args)
local x = p._cleanNumber(args[1])
local y = p._cleanNumber(args[2])
if not x then
return err('first argument to mod appears non-numeric')
elseif not y then
return err('second argument to mod appears non-numeric')
else
return p._mod(x, y)
end
end
function p._mod(x, y)
local ret = x % y
if not (0 <= ret and ret < y) then
ret = 0
end
return ret
end
--[[
gcd
Calculates the greatest common divisor of multiple numbers
Usage:
{{#invoke:Math | gcd | value 1 | value 2 | value 3 | ... }}
--]]
function wrap.gcd(args)
return p._gcd(unpackNumberArgs(args))
end
function p._gcd(...)
local function findGcd(a, b)
local r = b
local oldr = a
while r ~= 0 do
local quotient = math.floor(oldr / r)
oldr, r = r, oldr - quotient * r
end
if oldr < 0 then
oldr = oldr * -1
end
return oldr
end
local result, count = fold(findGcd, ...)
return result
end
--[[
precision_format
Rounds a number to the specified precision and formats according to rules
originally used for {{template:Rnd}}. Output is a string.
Usage:
{{#invoke: Math | precision_format | number | precision }}
]]
function wrap.precision_format(args)
local value_string = args[1] or 0
local precision = args[2] or 0
return p._precision_format(value_string, precision)
end
function p._precision_format(value_string, precision)
-- For access to Mediawiki built-in formatter.
local lang = mw.getContentLanguage();
local value
value, value_string = p._cleanNumber(value_string)
precision = p._cleanNumber(precision)
-- Check for non-numeric input
if value == nil or precision == nil then
return err('invalid input when rounding')
end
local current_precision = p._precision(value)
local order = p._order(value)
-- Due to round-off effects it is neccesary to limit the returned precision under
-- some circumstances because the terminal digits will be inaccurately reported.
if order + precision >= 14 then
if order + p._precision(value_string) >= 14 then
precision = 13 - order;
end
end
-- If rounding off, truncate extra digits
if precision < current_precision then
value = p._round(value, precision)
current_precision = p._precision(value)
end
local formatted_num = lang:formatNum(math.abs(value))
local sign
-- Use proper unary minus sign rather than ASCII default
if value < 0 then
sign = '−'
else
sign = ''
end
-- Handle cases requiring scientific notation
if string.find(formatted_num, 'E', 1, true) ~= nil or math.abs(order) >= 9 then
value = value * math.pow(10, -order)
current_precision = current_precision + order
precision = precision + order
formatted_num = lang:formatNum(math.abs(value))
else
order = 0;
end
formatted_num = sign .. formatted_num
-- Pad with zeros, if needed
if current_precision < precision then
local padding
if current_precision <= 0 then
if precision > 0 then
local zero_sep = lang:formatNum(1.1)
formatted_num = formatted_num .. zero_sep:sub(2,2)
padding = precision
if padding > 20 then
padding = 20
end
formatted_num = formatted_num .. string.rep('0', padding)
end
else
padding = precision - current_precision
if padding > 20 then
padding = 20
end
formatted_num = formatted_num .. string.rep('0', padding)
end
end
-- Add exponential notation, if necessary.
if order ~= 0 then
-- Use proper unary minus sign rather than ASCII default
if order < 0 then
order = '−' .. lang:formatNum(math.abs(order))
else
order = lang:formatNum(order)
end
formatted_num = formatted_num .. '<span style="margin:0 .15em 0 .25em">×</span>10<sup>' .. order .. '</sup>'
end
return formatted_num
end
--[[
divide
Implements the division operator
Usage:
{{#invoke:Math | divide | x | y | round= | precision= }}
--]]
function wrap.divide(args)
local x = args[1]
local y = args[2]
local round = args.round
local precision = args.precision
if not yesno then
yesno = require('Module:Yesno')
end
return p._divide(x, y, yesno(round), precision)
end
function p._divide(x, y, round, precision)
if y == nil or y == "" then
return err("Empty divisor")
elseif not tonumber(y) then
if type(y) == 'string' and string.sub(y, 1, 1) == '<' then
return y
else
return err("Not a number: " .. y)
end
elseif x == nil or x == "" then
return err("Empty dividend")
elseif not tonumber(x) then
if type(x) == 'string' and string.sub(x, 1, 1) == '<' then
return x
else
return err("Not a number: " .. x)
end
else
local z = x / y
if round then
return p._round(z, 0)
elseif precision then
return p._round(z, precision)
else
return z
end
end
end
--[[
Helper function that interprets the input numerically. If the
input does not appear to be a number, attempts evaluating it as
a parser functions expression.
]]
function p._cleanNumber(number_string)
if type(number_string) == 'number' then
-- We were passed a number, so we don't need to do any processing.
return number_string, tostring(number_string)
elseif type(number_string) ~= 'string' or not number_string:find('%S') then
-- We were passed a non-string or a blank string, so exit.
return nil, nil;
end
-- Attempt basic conversion
local number = tonumber(number_string)
-- If failed, attempt to evaluate input as an expression
if number == nil then
local success, result = pcall(mw.ext.ParserFunctions.expr, number_string)
if success then
number = tonumber(result)
number_string = tostring(number)
else
number = nil
number_string = nil
end
else
number_string = number_string:match("^%s*(.-)%s*$") -- String is valid but may contain padding, clean it.
number_string = number_string:match("^%+(.*)$") or number_string -- Trim any leading + signs.
if number_string:find('^%-?0[xX]') then
-- Number is using 0xnnn notation to indicate base 16; use the number that Lua detected instead.
number_string = tostring(number)
end
end
return number, number_string
end
--TEST
function wrap.TableRow(args)
return p._TableRow(unpackNumberArgs(args))
end
function p._TableRow(skillBase, skillBonus, statMin, statMax, capImportance, capLimit, resultCols, LV, Ln)
argumentos={skillBase,skillBonus,statMin,statMax,capImportance,capLimit,resultCols,LV,Ln}
for i = 0,8 do --This should prevent errors if a number is not defined.
if type(argumentos[i])~='number' then
argumentos[i]=0
end
end
if Ln==nil then
factor = skillBase + skillBonus * LV
else
factor = Ln
end
Pval = math.min(math.max(factor,statMin),statMax)
if resultCols >1 then
Sval = factor * ( 1 + capImportance * math.min(capLimit-1, 0.25))
R_Sval="|"..Sval
end
if resultCols >2 then
Tval = factor * ( 1 + capImportance * math.min(capLimit-1, 0.5))
R_Tval="|"..Tval
end
return Pval..R_Sval..R_Tval -- I want to see what this will return.
end
function wrap.SkillValue(args)
return p._SkillValue(unpackNumberArgs(args))
end
function p._SkillValue(a, b, mult)
return a + b * mult
end
function p._sum2()
return 1+2+3+4+5
end
function wrap.twomult(args)
return p._twomult(unpackNumberArgs(args))
end
function p._twomult(a, b)
return a * b
end
function wrap.potencia(args)
return p._potencia(unpackNumberArgs(args))
end
function p._potencia(a, b)
return a^b
end
--[[
Wrapper function that does basic argument processing. This ensures that all functions from #invoke can use either the current
frame or the parent frame, and it also trims whitespace for all arguments and removes blank arguments.
]]
local mt = { __index = function(t, k)
return function(frame)
if not getArgs then
getArgs = require('Module:Arguments').getArgs
end
return wrap[k](getArgs(frame)) -- Argument processing is left to Module:Arguments. Whitespace is trimmed and blank arguments are removed.
end
end }
return setmetatable(p, mt)