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Beginner Joined: 22 Oct 2003 Posts: 10

Would appreciate if anyone can help me with this problem. I wish to create a function variable that returns 1 or 0. It takes %line2 as a parameter; ie. @linecheck(%line2). What it does is match the line against certain patterns. If there is a match, the variable returns true. If not, it returns false.

%line2 should match only one of the following 3 patterns:
You eat*
%w invokes the powers of %w ~and lays %w hands on you.
You touch the tree of life tattoo.

Now I initially tried a nested %if statement (nested to simulate short-cicuit evaluation):

%if( %1=~ "You eat", 1, %if( %1=~ "%w invokes the powers of %w ~and lays %w hands on you.", 1, %if( %1=~ "You touch the tree of life tattoo.", 1, 0)))

However, it appears I cannot use the =~ pattern matching for the nested %if's.. it does not evaluate properly and returns false (the second and third patterns are never checked). Can someone explain why?

I would also appreciate it if someone could suggest any way to streamline it. I thought about putting all the patterns into one string variable, @patterns= "You eat|invokes the powers of|You touch the tree of life" and reduce matching to one %pos operation rather than n %if's. That obviously has flaws, because the wildcards aren't recognized. Can something like that be done?

- V.

Apprentice Joined: 28 Sep 2001 Posts: 103 Location: USA

I was able to get it working this way

%if((%1=~"You eat *" or %1=~"%w invokes the powers of %w ~and lays %w hands on you." or %1=~"You touch the tree of life tattoo."),1,0)

That a pretty neet way check your cure. I just may have to steal that from you. :) much smoother than my current way.

MASTER Joined: 28 Nov 2000 Posts: 4817 Location: USA

If you intend to use multi-word strings, DEFINE it as a SINGLE item. Put "s around it.
#FU linecheck {%if( "%1" =~ "You eat", 1, %if( "%1" =~ "%w invokes the powers of %w ~and lays %w hands on you.", 1, %if( "%1" =~ "You touch the tree of life tattoo.", 1, 0)))}