Difference between revisions of "Module:Test"

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m (comparisons must be done as strings)
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Line 1: Line 1:
-- redefine the print function to use mw.log
+
DefInfo = {}
print = mw.log
+
local wiki = {}
  
---------------
+
local function runTime()
-- load data --
+
  return string.format("%i", os.clock() * 1000)
---------------
+
end
  
-- wiki environment --
+
------------------------------------------------------------------
 +
-- deal with differences between MediaWiki and dev environments --
 +
------------------------------------------------------------------
  
local Biomes = mw.loadData('Module:Test/data/biomes')
+
if mw then
--local Buildings = mw.loadData('Module:Test/data/buildings')
 
local Races = mw.loadData('Module:Test/data/races')
 
  
-- dev environment --
+
  log = mw.log
 +
  logObject = mw.logObject
  
--local Biomes = loadfile("./data/BiomeDefs.lua")()
+
  local timeDataStart = runTime()
--local Buildings = loadfile("./data/ThingDefs_Buildings.lua")()
+
 
--local Races = loadfile("./data/ThingDefs_Races.lua")()
+
  Data  = mw.loadData('Module:Test/data')
  
-- aggregate the categories --
+
  local timeDataEnd = runTime()
 +
  log(string.format('@%ims, data loaded in %ims', timeDataEnd, timeDataEnd - timeDataStart))
  
local data = {}
+
  Util  = require("Module:Test/lib/util")
data["Biomes"] = Biomes
+
  Search = require("Module:Test/lib/search")
--data["Buildings"] = Buildings
+
  VF    = require("Module:Test/data/virtual")
data["Races"] = Races
 
  
------------------------
+
  log(string.format('@%ims, modules loaded', runTime()))
-- pretty print table --
 
------------------------
 
  
--[[ procedure: tprint ]]--
+
else
  
function tprint (tbl, indent)
+
  logDevStore = {}
   if not indent then indent = 0 end
+
 
   for k, v in pairs(tbl) do
+
  log = function(str)
    formatting = string.rep("  ", indent) .. k .. ": "
+
    table.insert(logDevStore, str)
     if type(v) == "table" then
+
   end
      print(formatting)
+
 
       tprint(v, indent+1)
+
   logObject = function(obj, prefix)
    elseif type(v) == 'boolean' then
+
     if prefix then
      print(formatting .. tostring(v))
+
      assert(type(prefix) == "string")
 +
       table.insert(logDevStore, prefix .. " = " .. Inspect(obj))
 
     else
 
     else
       print(formatting .. v)
+
       table.insert(logDevStore, Inspect(obj))
 
     end
 
     end
 
   end
 
   end
end
 
  
-----------------------------
+
  function pp(tbl, title) -- pretty print tables
-- small utility functions --
+
    Util.hl(title)
-----------------------------
+
    print(Inspect(tbl))
 +
  end
 +
 
 +
  local timeDataStart = runTime()
 +
 
 +
  Data    = require "data/data"
  
--[[ function: shallowcopy ]]--
+
  local timeDataEnd = runTime()
 +
  log(string.format('@%ims, data loaded in %ims', timeDataEnd, timeDataEnd - timeDataStart))
  
function shallowcopy(original_table)
+
  Util    = require "lib/util"
    local orig_type = type(original_table)
+
  Search  = require "lib/search"
    local copy
+
  Inspect = require "lib/inspect"
    if orig_type == 'table' then
+
  VF      = require "data/virtual"
        copy = {}
 
        for orig_key, orig_value in pairs(original_table) do
 
            copy[orig_key] = orig_value
 
        end
 
    else -- number, string, boolean, etc
 
        copy = original_table
 
    end
 
    return copy
 
end
 
  
--[[ function: reverse_numeric_table ]]--
+
  log(string.format('@%ims, modules loaded', runTime()))
  
function reverse_numeric_table(tbl)
 
    local reversed_table = {}
 
    local length = #tbl
 
    for i,v in ipairs(tbl) do
 
        reversed_table[length + 1 - i] = v
 
    end
 
    return reversed_table
 
 
end
 
end
  
--[[ function: count ]]--
+
-----------------------
 +
-- private functions --
 +
-----------------------
  
-- '#' operator seems to work for numerically indexed tables so it can be used instead
+
function DefInfo.vardefine(name, value, frame)
-- this count function counts all the keys (of any type)
+
  assert(name, "vardefine: missing argument #1 (variable to definePrefix)")
local function count(tbl, key_type)
+
   assert(type(name) == "string", string.format("vardefine: bad argument #1 (string expected, got %s)", type(name)))
   local length = 0;
+
   assert(value, "vardefine: missing argument #2 (value to assign)")
   for k,v in pairs(tbl) do
+
  assert(type(value) == "string" or type(value) == "number" or type(value) =="boolean", string.format("vardefine: bad argument #2 (string, number or boolean expected, got %s)", type(value)))
    if key_type then
+
   assert(frame, "vardefine: 'frame' missing")
      if type(k) == key_type then
+
   frame:callParserFunction('#vardefine', name, value)
        length = length + 1
 
      end
 
    else
 
      length = length + 1
 
    end
 
   end
 
   return length
 
 
end
 
end
  
--[[ function: find_key_name_of_value ]]--
+
function DefInfo.expandDef(def, runMe)
local function find_key_name_of_value(value, tbl)
+
  if not runMe then return nil end
   for k,v in pairs(tbl) do
+
  local vFuncs = VF
     if v == value then return k end
+
   for fName,func in pairs(vFuncs) do
 +
     if func(def) then
 +
      log(string.format('@%ims, expandDef: %s expanded with %s', runTime(), def.defName, fName))
 +
    end
 
   end
 
   end
 
end
 
end
  
--[[ function: search_table_recursive ]]--
+
function DefInfo.mergeParents(baseDef, ignoreKeys)
 +
  local ancestorIDs = {}
 +
  local mergedDef = {}
 +
  local def = baseDef
  
-- returns the value found by first occurrence of a key within a table (recursive)
+
   while def._.ParentName do
local function search_table_recursive(key, tbl)
+
     local parentID = def._.DefCategory .. ":" .. def._.ParentName
   for k, v in pairs(tbl) do
+
     table.insert(ancestorIDs, parentID)
     if tostring(k) == tostring(key) then return v
+
     def = Data[parentID]
     elseif type(v) == "table" then
 
      local found = search_table_recursive(key, v)
 
      if found then return found end
 
     end
 
 
   end
 
   end
end
 
  
--[[ function: find_parent_table ]]--
+
  ancestorIDs = Util.table.reverse(ancestorIDs)
 +
  table.insert(ancestorIDs, baseDef._.DefCategory .. ":" .. baseDef.defName)
  
-- returns the parent table of an element specified by key, value (recursive)
+
   for _,parentID in ipairs(ancestorIDs) do
local function find_parent_table(key, value, tbl)
+
     Util.table.overwrite(mergedDef, Data[parentID], ignoreKeys)
   for k, v in pairs(tbl) do
 
     if k == key and v == value then return tbl
 
    elseif type(v) == "table" then
 
      local found = find_parent_table(key, value, v)
 
      if found then return found end
 
    end
 
 
   end
 
   end
 +
 +
  return mergedDef
 
end
 
end
  
--[[ procedure: vardefine ]]--
+
function DefInfo.getDef(defID, expandVF)
 +
  if expandVF ~= false then expandVF = true end
  
local function vardefine(var_name, var_value)
+
   local ignoreKeys = {"Abstract", "Name", "ParentName"}
   local fName = "vardefine"
+
   local baseDef
  assert(var_name, string.format("bad argument #1 to '%s' (argument missing, name of variable to define)", fName))
+
   local def
  assert(var_name == "string", string.format("bad argument #1 to '%s' (string expected, got %s)", fName, type(var_name)))
 
   assert(var_value, string.format("bad argument #2 to '%s' (argument missing, value to assign to variable)", fName))
 
   assert(var_value == "string" or var_value == "number", string.format("bad argument #2 to '%s' (string or number expected, got %s)", fName, type(var_value)))
 
  
   frame:callParserFunction('#vardefine', var_name, var_value)
+
   if not defID then return nil end
end
 
  
--[[ procedure: overwrite_first_table_with_second ]]--
+
  for _,def in pairs(Data) do
 +
    if def.defName == defID then
 +
      baseDef = def
 +
      break
 +
    elseif string.upper(def.label or '') == string.upper(defID) then
 +
      baseDef = def
 +
      break
 +
    end
 +
  end
  
local function overwrite_first_table_with_second(first_table, second_table, ignore_keys)
+
   if not baseDef then return nil end
   ignore_keys = ignore_keys or {}
 
  
   for k,v in pairs(second_table) do
+
   def = DefInfo.mergeParents(baseDef, ignoreKeys)
    local ignore = false
 
  
    for _, ignored_key in ipairs(ignore_keys) do
+
  DefInfo.expandDef(def, expandVF)
      if k == ignored_key then ignore = true end
 
    end
 
  
    if not ignore then
+
   return def
      if type(v) == "table" then
 
        if type(first_table[k]) == "table" then
 
          overwrite_first_table_with_second(first_table[k], v)
 
        else
 
          first_table[k] = {}
 
          overwrite_first_table_with_second(first_table[k], v)
 
        end
 
      else
 
        first_table[k] = v
 
      end
 
    end
 
   end
 
 
end
 
end
  
----------------------
+
local function setPrefix(tbl, parentKey)
-- dataset specific --
+
  local mt = getmetatable(tbl) or {}
----------------------
 
  
--[[ function: find_def_table ]]--
+
   for k,v in pairs(tbl) do
 
+
    local prefix = parentKey .. "_" .. k
local function find_def_table(def)
+
     if type(v) == 'table' then
  -- hidden variables: data
+
       setPrefix(v, prefix)
   for k1,v1 in pairs(data) do
+
    else
     if type(v1) == "table" then
+
       mt[k] = prefix
       for k2,v2 in pairs(v1) do
 
        if k2 == def then return v2 end
 
       end
 
 
     end
 
     end
 
   end
 
   end
 +
 +
  setmetatable(tbl, mt)
 
end
 
end
  
local function find_def_category_table(def)
+
local function definePrefixed(tbl, frame)
   for k1,v1 in pairs(data) do
+
   for k,v in pairs(tbl) do
     if type(v1) == "table" then
+
     if type(v) ~= 'table' then
       for k2,v2 in pairs(v1) do
+
       local mt = getmetatable(tbl)
        if k2 == def then return v1 end
+
      log(string.format('%s = %s', mt[k], tostring(v)))
       end
+
      if mw then DefInfo.vardefine(mt[k], v, frame) end
 +
    else
 +
       definePrefixed(v, frame)
 
     end
 
     end
 
   end
 
   end
 
end
 
end
  
--[[ function: merge_def_with_parents ]]--
+
----------------------
 +
-- public interface --
 +
----------------------
  
local function merge_def_with_parents(def, ignore_keys)
+
function wiki.count(frame)
  -- hidden variables: ParentName and global data
+
   local query = wiki.query(frame)
 
+
   if type(wiki.queried) == 'table' then -- WARNING: checks a variable that is set in wiki.query (ugly)
   local def_table = find_def_table(def)
+
    return Util.table.count(wiki.queried)
   local def_category_table = find_def_category_table(def)
+
   end
  local parent_names = {}
+
end
   local parent_name = def_table["ParentName"]
 
  local parent_table = def_category_table[parent_name]
 
  
  while parent_name do
+
function wiki.query(frame)
    table.insert(parent_names, parent_name)
 
    parent_name = parent_table["ParentName"]
 
    parent_table = def_category_table[parent_name]
 
  end
 
  
   local inheritance_chain = shallowcopy(reverse_numeric_table(parent_names))
+
   local argLen = Util.table.count(frame.args, "number") -- #frame.args won't work as expected, check the doc
  table.insert(inheritance_chain, def)
 
  
   local merged = {}
+
   if not frame.args['defName'] and not frame.args['label'] then
  local chain_length = #inheritance_chain
+
    logObject(frame.args, string.format('query @ %ims: missing an identifying argument (defName or label)\nframe.args', runTime()))
  for i,v in ipairs(inheritance_chain) do
+
     return nil
     overwrite_first_table_with_second(merged, def_category_table[inheritance_chain[i]], ignore_keys)
 
 
   end
 
   end
  
   return merged
+
   local def = DefInfo.getDef(frame.args['defName']) or DefInfo.getDef(frame.args['label'])
end
 
 
 
--------------------------------
 
-- publicly exposed functions --
 
--------------------------------
 
 
 
local p = {}
 
 
 
function p.query(frame)
 
  local fName = "query"
 
  
   if not (frame.args["defName"] or frame.args["label"]) then
+
   if not def then
     assert(frame.args["defName"], string.format("bad argument to '%s' (missing named argument 'defName' or 'label' needed to find a Def)", fName))
+
     logObject(frame.args, string.format("query @ %ims: Def not found\nframe.args", runTime()))
 +
    return nil
 
   end
 
   end
  
  local def_table
+
   if def and argLen == 0 then
  local def_arg
+
     logObject(def, string.format("['%s:%s'] @ %ims", def._.DefCategory, def.defName, runTime()))
   if frame.args["defName"] then
+
     return nil
     def_table = find_def_table(frame.args["defName"])
 
    if def_table then
 
      def_arg = frame.args["defName"]
 
      def_table = merge_def_with_parents(frame.args["defName"], {"ParentName", "Abstract"})
 
    end
 
  end
 
  if not def_table then
 
    def_table = find_parent_table(find_key_name_of_value(frame.args["label"], frame.args), frame.args["label"], data["Races"])
 
    if def_table then
 
      def_arg = frame.args["label"]
 
      def_table = merge_def_with_parents(def_table["defName"], {"ParentName", "Abstract"})
 
     end
 
 
   end
 
   end
  
   assert(def_table, "Def not found")
+
   local processedDef = def
  
   local numbered_args_length = count(frame.args, "number")
+
   for i,arg in ipairs(frame.args) do -- arguments
  if numbered_args_length == 0 then
+
    arg = tonumber(arg) or arg -- frame.args are always strings on MediaWiki so convert back the numbers
    tprint(def_table)
 
    return "Table returned. Check the log."
 
  else
 
    local filtered = def_table
 
    -- filtered is just a reference to def_table (not copied) so updates on filtered are updates on def_table
 
  
     for i=1, numbered_args_length do
+
     if i == argLen and frame.args["sibling"] then
       filtered = search_table_recursive(frame.args[i], filtered)
+
       processedDef = Search.find({nil, frame.args["sibling"]} , processedDef)
       assert(frame.args[i], string.format("bad argument to '%s' (missing numeric argument #%i)", fName, i))
+
       if not processedDef then
      assert(filtered, string.format("'%s' not found in '%s'", frame.args[i], def_arg))
+
        logObject(frame.args, string.format("query @ %ims: bad argument 'sibling' ('%s' not found')\nframe.args", runTime(), frame.args["sibling"]))
       if filtered then
+
        return nil
         if (type(filtered) == "string" or type(filtered) == "number" or type(filtered) == "boolean") and (i < numbered_args_length) then
+
       else
           error(string.format("too many numeric arguments to '%s' ('%s' already found in '%s')", fName, frame.args[i], def_arg))
+
        processedDef = Search.meta.parent.table[arg]
 +
         if not processedDef then
 +
           logObject(frame.args, string.format("query @ %ims: bad argument #%i ('%s' is not a sibling of '%s')", runTime(), i, arg, frame.args["sibling"]))
 +
          return nil
 
         end
 
         end
 +
      end
 +
    end
 +
 +
    if i < argLen or i == argLen and not frame.args["sibling"] then
 +
      processedDef = Search.find(arg, processedDef)
 +
      if not processedDef then
 +
        logObject(frame.args, string.format("query @ %ims: bad argument #%i ('%s' not found)\nframe.args", runTime(), i, frame.args[i]))
 +
        return nil
 
       else
 
       else
         error(string.format("'%s' not found in '%s'", v, def_arg))
+
         if type(processedDef) ~= 'table' and i < argLen then
 +
          log(string.format("query @ %ims: warning Def ['%s'] argument #%i ('%s' returns a value, all extra arguments ignored)", runTime(), def['label'], i, frame.args[i]))
 +
          return processedDef
 +
        end
 
       end
 
       end
 
     end
 
     end
   
 
    if type(filtered) == "table" then
 
      tprint(filtered)
 
      return "Table returned. Check the log."
 
    else
 
      return filtered
 
    end
 
  
 +
  end -- for arguments
 +
 +
  if type(processedDef) == "table" then
 +
    log(string.format("@%ims, query: table vardefined", runTime()))
 +
    setPrefix(processedDef, frame.args[argLen])
 +
    definePrefixed(processedDef, frame)
 +
    wiki.queried = processedDef -- WARNING: sets a variable that is used in another function wiki.count (ugly)
 +
    return nil
 
   end
 
   end
  
 +
  log(string.format("@%ims, query: %s printed", runTime(), type(processedDef)))
 +
  return processedDef
 +
end
 +
 +
------------------------------------
 +
-- simulate MediaWiki environment --
 +
------------------------------------
 +
 +
if not mw then
 +
  local simframe = { ["args"] = {} }
 +
  simframe.args['label'] = 'ancient cryptosleep casket'
 +
--~  simframe.args[1] = 'verbs'
 +
--~  simframe.args[2] = 'label'
 +
  wiki.query(simframe)
 
end
 
end
  
-------------
+
if not mw then
-- logging --
+
  Util.hl("DefInfo log")
-------------
+
  for _,v in ipairs(logDevStore) do
 +
    print(v)
 +
  end
 +
end
  
--mw.log("Module:DefInfo:os.clock() " .. os.clock()*1000 .. " ms")
+
------------
print("Module:DefInfo:os.clock() " .. os.clock()*1000 .. " ms")
+
-- return --
 +
------------
  
return p
+
if mw then
 +
  return wiki
 +
else
 +
  return DefInfo
 +
end

Latest revision as of 09:56, 18 May 2021

This module is used for development.

Purpose

This module is used to query information from the uploaded and parsed game files.

Its main purpose is to populate the infoboxes.

Usage

A note on the order of named parameters. All of the parameters that look like ...=... are called named parameters and their order is not important (this is true for all templates).

query

{{#invoke:Test|query|<def ID>[|...|][|tag|][|sibling=...]}}

The work-horse. Output varies based on use:

If only the <def ID> parameter is set, it will show the whole Def in the log.
If simple values are queried it will return them.
If lists are queried it will return nothing but call {{#vardefine}} on all the simple values within it. What got defined can be seen in the page's log.

Named parameters:

<def ID>
This parameter identifies the Def so it is mandatory. It can take two forms, if both are defined then defName takes preference.
defName=<defName>
<defName> (case sensitive) should be replaced with the actual defName of a Def.
label=<label>
<label> (case insensitive) should be replaced with the actual label of a Def.
[sibling=...] (optional) (case sensitive)
Allows querying for something if we know its sibling's value (works only for values at the moment).

Anonymous parameters:

[|...|] (optional) (case sensitive)
Anonymous paramaters before the last one ([tag]) are here to help uniquely identify it. If the [tag] is already unique within a Def tree, then these additional parameters are not needed.
[|tag|] (optional) (case sensitive)
The final anonymous parameter defines what is to be queried.

count

{{#invoke:Test|count|<def ID>[|...|][|tag|][|sibling=...]}}

Parameters are the same as for query. It's basically a wrapped up query that behaves a bit differently.

The difference is in how it handles lists. If a list is queried, unlike query, it will return the length of the list.

How-to

Take a look at a Def

{{#invoke:Test|query|label=desert}}

Data is in the log.

Retrieve a simple value

{{#invoke:Test|query|defName=Caribou|description}}

A large member of the deer family, well-adapted to life in cold climates. Caribou can be milked, but refuse to carry packs.

Dealing with lists

{{#invoke:Test|query|defName=Mech_Scyther|tools}}

When a list is retrieved there will be no output but the log will contain a list of defined variables.

For convenience the list is reprinted here:

tools_1_linkedBodyPartsGroup = LeftBlade
tools_1_cooldownTime = 2
tools_1_label = left blade
tools_1_DPS = 10
tools_1_power = 20
tools_1_capacities_1 = Cut
tools_1_capacities_2 = Stab
tools_2_linkedBodyPartsGroup = RightBlade
tools_2_cooldownTime = 2
tools_2_label = right blade
tools_2_DPS = 10
tools_2_power = 20
tools_2_capacities_1 = Cut
tools_2_capacities_2 = Stab
tools_3_linkedBodyPartsGroup = HeadAttackTool
tools_3_capacities_1 = Blunt
tools_3_label = head
tools_3_DPS = 4.5
tools_3_chanceFactor = 0.2
tools_3_power = 9
tools_3_cooldownTime = 2

All of the above can be accessed with the use of {{#var:...}}.

{{#var:tools_1_DPS}}

10

DPS is not a normal member of this table but has been added with Lua. Let's call it a virtual field.

Retrieve something if a sibling is known

{{#invoke:Test|query|label=guinea pig|minAge|sibling=AnimalAdult}}

0.3


DefInfo = {}
local wiki = {}

local function runTime()
  return string.format("%i", os.clock() * 1000)
end

------------------------------------------------------------------
-- deal with differences between MediaWiki and dev environments --
------------------------------------------------------------------

if mw then

  log = mw.log
  logObject = mw.logObject

  local timeDataStart = runTime()
  
  Data   = mw.loadData('Module:Test/data')

  local timeDataEnd = runTime()
  log(string.format('@%ims, data loaded in %ims', timeDataEnd, timeDataEnd - timeDataStart))

  Util   = require("Module:Test/lib/util")
  Search = require("Module:Test/lib/search")
  VF     = require("Module:Test/data/virtual")

  log(string.format('@%ims, modules loaded', runTime()))

else

  logDevStore = {}

  log = function(str)
    table.insert(logDevStore, str)
  end

  logObject = function(obj, prefix)
    if prefix then
      assert(type(prefix) == "string")
      table.insert(logDevStore, prefix .. " = " .. Inspect(obj))
    else
      table.insert(logDevStore, Inspect(obj))
    end
  end

  function pp(tbl, title) -- pretty print tables
    Util.hl(title)
    print(Inspect(tbl))
  end

  local timeDataStart = runTime()

  Data    = require "data/data"

  local timeDataEnd = runTime()
  log(string.format('@%ims, data loaded in %ims', timeDataEnd, timeDataEnd - timeDataStart))

  Util    = require "lib/util"
  Search  = require "lib/search"
  Inspect = require "lib/inspect"
  VF      = require "data/virtual"

  log(string.format('@%ims, modules loaded', runTime()))

end

-----------------------
-- private functions --
-----------------------

function DefInfo.vardefine(name, value, frame)
  assert(name, "vardefine: missing argument #1 (variable to definePrefix)")
  assert(type(name) == "string", string.format("vardefine: bad argument #1 (string expected, got %s)", type(name)))
  assert(value, "vardefine: missing argument #2 (value to assign)")
  assert(type(value) == "string" or type(value) == "number" or type(value) =="boolean", string.format("vardefine: bad argument #2 (string, number or boolean expected, got %s)", type(value)))
  assert(frame, "vardefine: 'frame' missing")
  frame:callParserFunction('#vardefine', name, value)
end

function DefInfo.expandDef(def, runMe)
  if not runMe then return nil end
  local vFuncs = VF
  for fName,func in pairs(vFuncs) do
    if func(def) then
      log(string.format('@%ims, expandDef: %s expanded with %s', runTime(), def.defName, fName))
    end
  end
end

function DefInfo.mergeParents(baseDef, ignoreKeys)
  local ancestorIDs = {}
  local mergedDef = {}
  local def = baseDef

  while def._.ParentName do
    local parentID = def._.DefCategory .. ":" .. def._.ParentName
    table.insert(ancestorIDs, parentID)
    def = Data[parentID]
  end

  ancestorIDs = Util.table.reverse(ancestorIDs)
  table.insert(ancestorIDs, baseDef._.DefCategory .. ":" .. baseDef.defName)

  for _,parentID in ipairs(ancestorIDs) do
    Util.table.overwrite(mergedDef, Data[parentID], ignoreKeys)
  end

  return mergedDef
end

function DefInfo.getDef(defID, expandVF)
  if expandVF ~= false then expandVF = true end

  local ignoreKeys = {"Abstract", "Name", "ParentName"}
  local baseDef
  local def

  if not defID then return nil end

  for _,def in pairs(Data) do
    if def.defName == defID then
      baseDef = def
      break
    elseif string.upper(def.label or '') == string.upper(defID) then
      baseDef = def
      break
    end
  end

  if not baseDef then return nil end

  def = DefInfo.mergeParents(baseDef, ignoreKeys)

  DefInfo.expandDef(def, expandVF)

  return def
end

local function setPrefix(tbl, parentKey)
  local mt = getmetatable(tbl) or {}

  for k,v in pairs(tbl) do
    local prefix = parentKey .. "_" .. k
    if type(v) == 'table' then
      setPrefix(v, prefix)
    else
      mt[k] = prefix
    end
  end

  setmetatable(tbl, mt)
end

local function definePrefixed(tbl, frame)
  for k,v in pairs(tbl) do
    if type(v) ~= 'table' then
      local mt = getmetatable(tbl)
      log(string.format('%s = %s', mt[k], tostring(v)))
      if mw then DefInfo.vardefine(mt[k], v, frame) end
    else
      definePrefixed(v, frame)
    end
  end
end

----------------------
-- public interface --
----------------------

function wiki.count(frame)
  local query = wiki.query(frame)
  if type(wiki.queried) == 'table' then -- WARNING: checks a variable that is set in wiki.query (ugly)
    return Util.table.count(wiki.queried)
  end
end

function wiki.query(frame)

  local argLen = Util.table.count(frame.args, "number") -- #frame.args won't work as expected, check the doc

  if not frame.args['defName'] and not frame.args['label'] then
    logObject(frame.args, string.format('query @ %ims: missing an identifying argument (defName or label)\nframe.args', runTime()))
    return nil
  end

  local def = DefInfo.getDef(frame.args['defName']) or DefInfo.getDef(frame.args['label'])

  if not def then
    logObject(frame.args, string.format("query @ %ims: Def not found\nframe.args", runTime()))
    return nil
  end

  if def and argLen == 0 then
    logObject(def, string.format("['%s:%s'] @ %ims", def._.DefCategory, def.defName, runTime()))
    return nil
  end

  local processedDef = def

  for i,arg in ipairs(frame.args) do -- arguments
    arg = tonumber(arg) or arg -- frame.args are always strings on MediaWiki so convert back the numbers

    if i == argLen and frame.args["sibling"] then
      processedDef = Search.find({nil, frame.args["sibling"]} , processedDef)
      if not processedDef then
        logObject(frame.args, string.format("query @ %ims: bad argument 'sibling' ('%s' not found')\nframe.args", runTime(), frame.args["sibling"]))
        return nil
      else
        processedDef = Search.meta.parent.table[arg]
        if not processedDef then
          logObject(frame.args, string.format("query @ %ims: bad argument #%i ('%s' is not a sibling of '%s')", runTime(), i, arg, frame.args["sibling"]))
          return nil
        end
      end
    end

    if i < argLen or i == argLen and not frame.args["sibling"] then
      processedDef = Search.find(arg, processedDef)
      if not processedDef then
        logObject(frame.args, string.format("query @ %ims: bad argument #%i ('%s' not found)\nframe.args", runTime(), i, frame.args[i]))
        return nil
      else
        if type(processedDef) ~= 'table' and i < argLen then
          log(string.format("query @ %ims: warning Def ['%s'] argument #%i ('%s' returns a value, all extra arguments ignored)", runTime(), def['label'], i, frame.args[i]))
          return processedDef
        end
      end
    end

  end -- for arguments

  if type(processedDef) == "table" then
    log(string.format("@%ims, query: table vardefined", runTime()))
    setPrefix(processedDef, frame.args[argLen])
    definePrefixed(processedDef, frame)
    wiki.queried = processedDef -- WARNING: sets a variable that is used in another function wiki.count (ugly)
    return nil
  end

  log(string.format("@%ims, query: %s printed", runTime(), type(processedDef)))
  return processedDef
end

------------------------------------
-- simulate MediaWiki environment --
------------------------------------

if not mw then
  local simframe = { ["args"] = {} }
  simframe.args['label'] = 'ancient cryptosleep casket'
--~   simframe.args[1] = 'verbs'
--~   simframe.args[2] = 'label'
  wiki.query(simframe)
end

if not mw then
  Util.hl("DefInfo log")
  for _,v in ipairs(logDevStore) do
    print(v)
  end
end

------------
-- return --
------------

if mw then
  return wiki
else
  return DefInfo
end