Hi!
Am 25.09.2013 06:50 schröbte David Crayford:
Thanks. This is how dumbstruck I am WRT pattern matching. I want to
parse the following piece of netstat output
SKRBKDC 00000099 UDP
Local Socket: 172.17.69.30..464
Foreign Socket: *..*
The top line is the user, connection id and state. All I want to do is
capture three whitespace seperated words.
In REXX I would do this:
parse var line userid connid state
What is the most succinct way of doing something similar in Lua?
print( line:match( "(%w+)%s+(%w+)%s+(%w+)" ) )
%w matches a single "word"-character (letters, numbers, and _).
%w+ means: at least one of those, and as much as possible.
(%w+) means: capture the match (copy the matching substring to the
return values of `line:match` (if the whole match succeeds)).
%s matches a single whitespace character (not just space, but tab, and
newline, etc. as well).
%s+ means: match at least one whitespace, but as much as possible at
that position.
