# Bubble Sort in Lua

Published on 28 October 2019 (Updated: 15 October 2020)

Welcome to the Bubble Sort in Lua page! Here, you'll find the source code for this program as well as a description of how the program works.

## Current Solution

``````-- Initialize table
nums = {}

-- Exit if no list is entered or list is empty
if arg[1] == nil or #arg[1] == 0 then
print('Usage: please provide a list of at least two integers to sort in the format "1, 2, 3, 4, 5"')
return
end

-- Exit if list has a single entry or is not formatted with commas
if (not string.match(arg[1], " ")) or (not string.match(arg[1], ",")) then
print('Usage: please provide a list of at least two integers to sort in the format "1, 2, 3, 4, 5"')
return
end

-- Read input list into a table
for i=1, #arg[1] do
char = string.sub(arg[1], i, i)
if tonumber(char) then
table.insert(nums, char)
end
end

-- Loop through entire table
for i=1, #nums do
-- Loop through entire table
for index,value in pairs(nums) do
-- If current number is larger than next number, swap them
if nums[index+1] ~= nil and value > nums[index+1] then
nums[index] = nums[index+1]
nums[index+1] = value
end
end
end

-- Print sorted list
for k,v in pairs(nums) do
io.write(v)

-- Comma formatting
if nums[k+1] ~= nil then
io.write(', ')
end
end

io.write("\n")

``````

Bubble Sort in Lua was written by:

• Jeremy Grifski
• jketterer

If you see anything you'd like to change or update, please consider contributing.

## How to Implement the Solution

No 'How to Implement the Solution' section available. Please consider contributing.

## How to Run the Solution

No 'How to Run the Solution' section available. Please consider contributing.