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rlgraham · Posted: Fri Jan 26, 2007 12:47 pm Post subject: lsearch regexp

I am writing a tcl script and I am not familar with how to use the

lsearch -regexp command to get "all" the segments in a file. Here is a peice of my code:

nml375 · Revered One Joined: 04 Aug 2006 Posts: 2857

Tried the -all option? Should make lsearch return a list rather than a single value, which you then should be able to use with a foreach-loop...
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NML_375, idling at #eggdrop@IrcNET

rlgraham · Posted: Fri Jan 26, 2007 2:35 pm Post subject: lsearch regexpr

That is what I thought I should use, can you show me the syntax for the line I have in bold?
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R. G.
Little Rock, AR

nml375 · Revered One Joined: 04 Aug 2006 Posts: 2857

something like this I suppose:

rlgraham · Posted: Fri Jan 26, 2007 2:53 pm Post subject: lsearch regexpr

I had tried that and it gives this error:

wrong # args: should be "lsearch ?mode? list pattern"
while executing
"lsearch -regexp -all $segments {^HDR}"

so that is why I was trying to get another idea of the way to use the syntax. Any other ideas?
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R. G.
Little Rock, AR

nml375 · Revered One Joined: 04 Aug 2006 Posts: 2857

Could you check which version of tcl you are using? Some features are not available in all versions in use today.
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NML_375, idling at #eggdrop@IrcNET

rlgraham · Posted: Fri Jan 26, 2007 2:57 pm Post subject:

version 8.0
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R. G.
Little Rock, AR

nml375 · Revered One Joined: 04 Aug 2006 Posts: 2857

Unfortunately, 8.0 lacks many features such as the -all argument with lsearch.

I would guess the simplest approach (next to bugging your admin to upgrade tcl to 8.4ish), would be to manually step through the list (foreach) and manually test each list-item with regexp, possibly building a new list based on wether each item pass or fail the regexp-test...

ie:

rlgraham · Posted: Fri Jan 26, 2007 3:12 pm Post subject:

I thought in the older version you could use a * instead of the -all and get the same thing, but it gives me the same error. I thought I just had the syntax wrong. Are you familar with the * matching all?
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R. G.
Little Rock, AR

nml375 · Revered One Joined: 04 Aug 2006 Posts: 2857

* is a wildcard used with glob-style matching, not regular expressions. It will match 0 or more characters (including whitespaces and other "special" characters).

Using *-wildcard with glob-style matching in lsearch would mean it would match each list-item against *, which would match the first item in the list, and hence return the list index for that item (obviously 0).

There is no *-argument.
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NML_375, idling at #eggdrop@IrcNET

rlgraham · Posted: Fri Jan 26, 2007 3:19 pm Post subject:

Then I guess I will go with your suggestion of stepping through the segments to find all my HDR's.

Thanks so much for your time, I really appreciate it.

Ricci
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R. G.
Little Rock, AR