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Levine
Newbie
Joined: 08 Jan 2007
Posts: 3
Location: Ontario, Canada
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 Posted: Tue Feb 06, 2007 5:57 am
Is this a bug, or am I losing it?
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I've been trying to figure out why this won't work,
Pasted into the zMud command window, works as expected:
| Code: |
#ECHO %subregex( "apple orange grape", "\w+ (\w+) \w+", %1)
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returns "orange" .. just the way I want it to.
This however does not work,
| Code: |
| #alias test { #ECHO %subregex( "apple orange grape", "\w+ (\w+) \w+", %1) } |
now if I execute "test" I get nothing.
To make things more interesting, let's replace the 'test' alias with this:
| Code: |
| #alias test { #ECHO %subregex( "apple orange grape", "\w+ (\w+) \w+", "foobar") } |
Now when I execute the 'test' alias, I get "foobar" returned.
So i'm thinking capturing paranthesis works when used outside an #alias but not when used within an #alias.
Can anyone tell me if i'm missing something here, or is this a bug? |
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Fang Xianfu
GURU
Joined: 26 Jan 2004
Posts: 5155
Location: United Kingdom
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Posted: Tue Feb 06, 2007 6:30 am
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Yes, this is one of those annoying zMUD things. The alias really is working - it's replacing the string with %1; that is, the first parameter of the alias, which is empty. You're not getting nothing, you're getting a blank line. You need to delay the expansion of %1 so it's ignored by the alias parsing, giving you:
#alias test {#ECHO %subregex( "apple orange grape", "\w+ (\w+) \w+", %%1)}
which works fine for me. |
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