made this 1 for the fun, but it's actualy a nice example how to grab a number from a string in multiple way's.
string = " 12.4 GB "
-- strfind with magic
s,e,num = strfind(string, "([%d%.]+)")
print(num)
-- strfind with simple pattern
s,e,num = strfind(string, "(%d+%.%d)")
print(num)
-- strsub
num = strsub(string, 3, (strlen(string)-3) )
print(num)
-- strfind + strsub
a,b = strfind(string, "^%D+(%d)")
c,d = strfind(string, "(%d)%D+$")
num = strsub(string,b,c)
print(num)
-- gsub
num = gsub(string, "[^%d%.]","")
print(num)
-- complex gsub
function replace(t)
if tonumber(t) then
return t
elseif t == "." then
return t
else
return ""
end
end
num = gsub(string, "(.)",function(t) return replace(t) end)
print(num)if you know more way's pls post them.
plop
Good job.
-NotRabidWombat
Very good stuff ..
I think it can be usefull to have the actual result for each of those .. :)
QuoteOriginally posted by Herodes
Very good stuff ..
I think it can be usefull to have the actual result for each of those .. :)
execute the script with the lua command line.
you'll they all have the exact same result, just some take the long way home. lol
@both, thx for the compliments.
plop