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alias syntax

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Posted by Neves   USA  (78 posts)  [Biography] bio
Date Sun 21 Nov 2010 04:57 AM (UTC)
I want to make an alias that without an argument will list variables, with an argument will list that variable, and with two arguments will change the variable, and am wondering what the syntax would be for the alias.

The commands would be:
'nval' should list var1 = @var1, var2 = @var2
'nval 1' should just say var2 = @var2, or 'nval 1' would just do var1 = @var1.
'nval 1 blah' would change @var1 to equal blah, or 'nval 2 blah2' would change @var2 to blah2.

I cannot figure out what the alias should look like to be able to pick up with or without an alias, how would I do it? The actual code part I can do, it is just the syntax to make it trigger I am having issues with, and I prefer not to have to make it as three seperate aliases. If this was not clear let me know and I'll try to explain better.

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Posted by Nick Gammon   Australia  (21,607 posts)  [Biography] bio   Forum Administrator
Date Reply #1 on Sun 21 Nov 2010 05:09 AM (UTC)
Something like this:

   match="^nval(?'which' \d+)?(?'newval' .*)?$"
which = %&lt;which&gt;
newval = %&lt;newval&gt;

Note that the spaces will be part of the wildcard(s), you would want to trim that out.

- Nick Gammon

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