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➜ MUSHclient
➜ Lua
➜ How to count words in a variable
How to count words in a variable
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Posted by
| Rene
(46 posts) Bio
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Date
| Tue 03 Oct 2017 12:48 AM (UTC) |
Message
| I want to count words in a variable to know how many words it contains, I assume it can be done by matching white spaces, assuming the variable is called 'vnum', how would I do that?
Also, how can I break up each word in 'vnum' into a separate value in an array? meaning if 'vnum' is how are you today, the array would be vnum = {"how", "are", "you", "today"}
Thanks! | Top |
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Posted by
| Nick Gammon
Australia (23,133 posts) Bio
Forum Administrator |
Date
| Reply #1 on Tue 03 Oct 2017 07:33 AM (UTC) Amended on Thu 05 Oct 2017 09:46 PM (UTC) by Nick Gammon
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Message
| You can use string.gmatch, like this:
for w in string.gmatch ("nick takes a stroll", "%a+") do
print (w)
end -- for
By altering the regular expression (ie. "%a+") you can change what you define a "word" to be (eg. does it include numbers?)
Having done that you can count things (eg, add one to a counter instead of printing).
Similarly you could insert each word into an array.
http://www.gammon.com.au/scripts/doc.php?lua=string.gmatch |
- Nick Gammon
www.gammon.com.au, www.mushclient.com | Top |
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