103 lines
3.2 KiB
Lua
103 lines
3.2 KiB
Lua
-- loveutils.table : simple functions for table manipulation and computation.
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--[[
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Copyright © 2021 Kazhnuz
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Permission is hereby granted, free of charge, to any person obtaining a copy of
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this software and associated documentation files (the "Software"), to deal in
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the Software without restriction, including without limitation the rights to
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use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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the Software, and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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]]
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local Table = {}
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function Table.contain(table, content)
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for k, v in ipairs(table) do
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if (v == content) then
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return true
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end
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end
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return false
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end
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function Table.toString(table)
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local string = "{"
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for key, value in pairs(table) do
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string = string .. key .. ":"
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if (type(value) == "table") then
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string = string .. Table.toString(value)
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elseif type(value) == "boolean" then
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if (value) then
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string = string .. "true"
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else
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string = string .. "false"
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end
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else
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string = string .. value
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end
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string = string .. ","
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end
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return string .. "}"
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end
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function Table.reduce(list, fn)
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local acc
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for k, v in ipairs(list) do
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if 1 == k then
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acc = v
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else
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acc = fn(acc, v)
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end
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end
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return acc
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end
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function Table.sum(table)
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local sum = 0
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for _, v in pairs(table) do
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sum = sum + v
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end
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return sum
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end
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function Table.average(table)
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return Table.sum(table) / #table
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end
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--Parse a basic list into a structured table. Return an error if the number of arguments is not the same
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---@param table table the list to parse into a table
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---@param structure table the structure to create the table : each name correspond to an attribute of the parsed table
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---@param nullableNbr integer the number of nullable argument (at the end of the functions) (can be null)
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---@return table parsedTable the parsed table
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function Table.parse(table, structure, nullableNbr)
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local parsedTable = {}
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assert(table ~= nil, "The table to parse can't be null")
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assert(structure ~= nil, "The table structure can't be null")
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nullableNbr = nullableNbr or 0
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if ((#table) > (#structure)) or ((#table) < (#structure - nullableNbr)) then
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error("The table to parse doesn't have the right number of arguments: " .. #table .. " instead of " .. #structure .. " and " .. nullableNbr .. " nullables")
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else
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for i, key in ipairs(structure) do
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--print(i, key, table[i])
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parsedTable[key] = table[i]
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end
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end
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return parsedTable
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end
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return Table
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