Changes

no edit summary
Line 23: Line 23:     
-- * Collection functions.
 
-- * Collection functions.
 +
 +
function Utils.isize(xs)
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local r = 0
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for _ in ipairs(xs) do
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r = r + 1
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end
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return r
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end
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function Utils.size(xs)
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local r = 0
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for _ in pairs(xs) do
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r = r + 1
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end
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return r
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end
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function Utils.removekey(xs, k)
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local e = xs[k]
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xs[k] = nil
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return e
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end
    
function Utils.isArray(xs)
 
function Utils.isArray(xs)
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end
 
end
   −
function Utils.imax(arr)
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function Utils.imax(arr, def)
 
     local maxValue
 
     local maxValue
 
     local maxIndex
 
     local maxIndex
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end
 
end
 
end
 
end
return maxValue
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return maxValue or def
 
end
 
end
   −
function Utils.imin(arr)
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function Utils.imin(arr, def)
 
     local minValue
 
     local minValue
 
     local minIndex
 
     local minIndex
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end
 
end
 
end
 
end
return minValue
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return minValue or def
 
end
 
end
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         return k, v
 
         return k, v
 
     end
 
     end
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end
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 +
function Utils.ilast(arr)
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return arr[#arr]
 
end
 
end
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end
 
end
   −
function Utils.isort(arr)
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function Utils.sort(tbl, f)
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    table.sort(tbl, f)
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    return tbl
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end
 +
 
 +
function Utils.isort(arr, f)
 
     local result = Utils.icopy(arr)
 
     local result = Utils.icopy(arr)
     table.sort(result)
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     table.sort(result, f)
 
     return result
 
     return result
 
end
 
end
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     local success, data = pcall(function () return require(string.format("Module:%s", name)) end)
 
     local success, data = pcall(function () return require(string.format("Module:%s", name)) end)
 
     -- module without return (or empty, nil, false, true return) gives success = true, data = true
 
     -- module without return (or empty, nil, false, true return) gives success = true, data = true
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    if data == true then
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        return false, nil
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    else
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        return success, data
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    end
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end
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function Utils.loadData(name)
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    local success, data = pcall(function () return mw.loadData(string.format("Module:%s", name)) end)
 +
    -- TODO: ???
 
     if data == true then
 
     if data == true then
 
         return false, nil
 
         return false, nil
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return result
 
return result
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end
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 +
Utils.romanizable = {'zh-hans', 'zh-hant', 'zh-cn', 'zh-tw', 'zh-hk', 'zh-sg', 'zh-mo', 'zh-my', 'ja', 'ko', 'vi'}
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Utils.normalization_table = {[' '] = ' ', ['~'] = '~', ['!'] = '!', ['?'] = '?'}
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-- checks if string is set and if it's non-empty
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function Utils.isset(target)
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  return target ~= nil and target ~= ""
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end
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--[[ simulates the (a ? b : c) notation of C/C++ and PHP languages.
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    Similar to {{#if:{{{a|}}}|{{{b|}}}|{{{c|}}}}} from parser functions. ]]
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function Utils.cv(a, b, c)
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  if a then return b else return c end
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end
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 +
--slices a table to return another table containing values within a certain range
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--source: http://snippets.luacode.org/snippets/Table_Slice_116
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function Utils.sliceTable (values,i1,i2)
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    local res = {}
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    local n = #values
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    -- default values for range
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    i1 = i1 or 1
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    i2 = i2 or n
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    if i2 < 0 then
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        i2 = n + i2 + 1
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    elseif i2 > n then
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        i2 = n
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    end
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    if i1 < 1 or i1 > n then
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        return {}
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    end
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    local k = 1
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    for i = i1,i2 do
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        res[k] = values[i]
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        k = k + 1
 +
    end
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    return res
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end
 +
 +
-- checks if a given page exists
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function Utils.exists(page)
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  if not Utils.isset(page) then return false end
 +
  return mw.getCurrentFrame():preprocess('{{#ifexist:' .. page .. '|1|0}}') == '1'
 +
end
 +
 +
--[[ Tries to get contents of a page with given name.
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    If the function fails it returns nil (page doesn't exist or can't be loaded)
 +
    On success it returns the contents of page (it can be be partially preprocessed, so watch out for parser markers). ]]
 +
function Utils.getPage(name)
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  if not Utils.isset(name) then return nil end
 +
 +
  local frame = mw.getCurrentFrame()
 +
 +
  -- do a safe call to catch possible errors, like "template doesn't exist"
 +
  local stat,page = pcall(frame.expandTemplate, frame, {title = ':' .. name})
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 +
  if not stat then
 +
    -- TODO: 'page' contains the error message. Do some debugging?
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    return nil
 +
  end
 +
 +
  return page
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end
 +
 +
function Utils.stripTags(text)
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  if Utils.isset(text) then
 +
    local tmp
 +
    repeat
 +
      tmp = text
 +
      -- a pair of tags, like <td style="">...</td>
 +
      text = string.gsub(text, '<%s*(%w+).->(.-)<%s*/%s*%1%s*>', '%2')
 +
      -- closed tag, like <br/>
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      text = string.gsub(text, '<%s*%w+%s*/%s*>', '')
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    until tmp == text
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  end
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  return text
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end
 +
 +
--[[ Sort table and remove repeating elements.
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    Since tbl is passed as reference, any changes in it will affect the passed table. ]]
 +
function Utils.trunkTable(tbl)
 +
  table.sort(tbl)
 +
  local last
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  local redo
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  repeat
 +
    redo = false
 +
    last = nil
 +
    for k,v in pairs(tbl) do
 +
      if v ~= last then
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        last = v
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      else
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        table.remove(tbl, k)
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        redo = true
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        break
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      end
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    end
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  until not redo
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end
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 +
--[[ Checks if a given value is among the elements of a table and returns its index.
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      Returns nil if it can't find it. ]]
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function Utils.isInTable(tbl, val)
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  for k,v in pairs(tbl) do
 +
    if v == val then return k end
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  end
 +
  return nil
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end
 +
 +
--[[ Compare 'n' elements in two tables, starting from 's1' in first table and 's2' in second table. ]]
 +
function Utils.partialTableCompare(t1, t2, s1, s2, n)
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  if n < 1 then return true end -- basically there's nothing to compare, so no differences were found
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 +
  for i = 0,(n-1) do
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    -- Note that nil values are also valid.
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    if t1[s1+i] ~= t2[s2+i] then return false end
 +
  end
 +
 +
  return true
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end
 +
 +
-- naming based on "Navbox" elements
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Utils.main_colors = {
 +
  game = {border = '#A88580', title = '#FFC9C2', above = '#FFD1CA', group = '#FFD9D2', subgroup = '#FFE1DA', dark = '#FFEEE8', background = '#FFF4EE'};
 +
  music = {border = '#A8A077', title = '#FFF3B4', above = '#FFF6C0', group = '#FFF7C8', subgroup = '#FFF8D0', dark = '#FFFBE4', background = '#FFFBEE'};
 +
  printwork = {border = '#9298A8', title = '#DDE6FF', above = '#E1E7FF', group = '#E6E9FF', subgroup = '#EAECFF', dark = '#EDF2FF', background = '#F4F9FF'};
 +
}
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-- function for easy adding of styles to html tags
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function Utils.addStyle(tbl, val)
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  if Utils.isset(val) then
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    local av = tostring(val):gsub("^%s*(.-)%s*$", "%1")
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    if string.sub(av, -1) ~= ';' then av = av .. ';' end
 +
    tbl[#tbl+1] = av
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  end
 
end
 
end
    
return Utils
 
return Utils
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