Re: pad a string

[Kaj Eijlers <bizziboi@...>]

You are unintentionally doubling a every time - instead of appending your original, you append the modified string to itself. so you are doing

a = 'a'

a = a + a = 'a' + 'a' -> a is now 'aa'

a = a + a = 'aa' + 'aa' -> a is now 'aaaa'

a = a + a = 'aaaa' + 'aaaa' -> a is now 'aaaaaaaa'

etc.

Kaj

On Thu, Apr 18, 2013 at 8:19 AM, Chodera, Ian <Ian.Chodera@delphi.com> wrote:

a="k"

n=3

b=""

for c = 1, n do b = b..a end

print(b)

 

From: lua-l-bounces@lists.lua.org [mailto:lua-l-bounces@lists.lua.org] On Behalf Of Chris Datfung
Sent: 18 April 2013 13:16
To: Lua mailing list
Subject: pad a string

 

Hi,

I want to pad a string with itself n number of times, for example if n = 3 and var="test" then var = var .. var .. var

I tried with a for loop but get one too many combinations

> a="k"
> n=3
> for c = 1, n-1 do a = a..a end
> print(a)
kkkk

Is there a smarter way to implement this?

Thanks,

Chris

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