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Converting a string into a table

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Posted by Gaznox   (6 posts)  [Biography] bio
Date Sun 27 May 2007 05:19 AM (UTC)
Message
I was reading on how to use tables and I noticed that there is a table.concat command that strings together table values. Is there anything that does the reverse as in change:
the,quick,brown,fox,jumped

into:
t =
{
"the",
"quick",
"brown",
"fox",
"jumped",
}
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Posted by David Haley   USA  (3,881 posts)  [Biography] bio
Date Reply #1 on Sun 27 May 2007 06:50 AM (UTC)

Amended on Sun 27 May 2007 06:51 AM (UTC) by David Haley

Message
If you know the string ahead of time, you can just do:

t = {"the","quick","brown", ...}


But I'm guessing you don't know ahead of time what the string is. In that case, you should use string.gmatch:


[david@thebalrog:~]$ cat test.lua
#!/usr/bin/lua

s = "hello,world,from,Lua"
for w in string.gmatch(s, "([^,]+)") do
    print(w)
end


[david@thebalrog:~]$ lua test.lua
hello
world
from
Lua



EDIT: to complete the example, instead of printing the words, you'd add them to a table using table.insert, for example.

David Haley aka Ksilyan
Head Programmer,
Legends of the Darkstone

http://david.the-haleys.org
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Posted by Nick Gammon   Australia  (21,324 posts)  [Biography] bio   Forum Administrator
Date Reply #2 on Sun 27 May 2007 08:59 PM (UTC)
Message
See:

http://www.gammon.com.au/scripts/doc.php?lua=utils.split

- Nick Gammon

www.gammon.com.au, www.mushclient.com
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