CODEWITHSUNDEEP
lua
Mechanical Morgan
Mechanical Morgan

Reputation: 21

Splitting strings in Lua

I'm very new to Lua, So sorry if I sound really stupid. I'm trying to make a program that does something a bit like this:

User input: "Hello world" Var1: Hello Var2: world

Because I have no idea what I'm doing, All I have is test = io.read(), And I have no idea what to do next.

I appreciate any help!

Thanks, Morgan.

Upvotes: 1

Views: 107

Answers (1)

user5992808
user5992808

Reputation:

If you want split words, you can do so:

input = "Hello world"

-- declare a table to store the results
-- use tables instead of single variables, if you don't know how many results you'll have
t_result = {}

-- scan the input
for k in input:gmatch('(%w+)') do table.insert(t_result, k) end
-- input:gmatch('(%w+)')
-- with generic match function will the input scanned for matches by the given pattern
-- it's the same like: string.gmatch(input, '(%w+)')
-- meaning of the search pattern:
---- "%w" = word character
---- "+"  = one or more times
---- "()" = capture the match and return it to the searching variable "k"

-- table.insert(t_result, k)
-- each captured occurence of search result will stored in the result table

-- output
for i=1, #t_result do print(t_result[i]) end
-- #t_result: with "#" you get the length of the table (it's not usable for each kind of tables)
-- other way:
-- for k in pairs(t_result) do print(t_result[k]) end

Output:

Hello
world

Upvotes: 2

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