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regexp

 
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StaleJoke
Voice


Joined: 29 Nov 2005
Posts: 10
PostPosted: Wed May 03, 2006 7:52 pm    Post subject: regexp Reply with quote
Code:

set r [regexp -nocase -all {$t1|$t2} $arg]


Doesn't work. Any corrections need to be done ?
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Sir_Fz
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Joined: 27 Apr 2003
Posts: 3793
Location: Lebanon
PostPosted: Wed May 03, 2006 8:42 pm    Post subject: Reply with quote
$ has special meaning inside {} in regexp. Try "" instead {}.
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DragnLord
Owner


Joined: 24 Jan 2004
Posts: 711
Location: C'ville, Virginia, USA
PostPosted: Wed May 03, 2006 9:01 pm    Post subject: Reply with quote
Variables are not expanded inside of curly braces, you need to use double quotes as Sir_Fz suggested when using variables for matchin with regexp.
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avilon
Halfop


Joined: 13 Jul 2004
Posts: 64
Location: Germany
PostPosted: Thu May 04, 2006 11:54 am    Post subject: Reply with quote
Code:
set RE {$t1|$t2}

set r [regexp -nocase -all -- [subst -nocommands -nobackslashes $RE] $arg]
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StaleJoke
Voice


Joined: 29 Nov 2005
Posts: 10
PostPosted: Thu May 04, 2006 8:02 pm    Post subject: Reply with quote
Done.

Code:

set r [regexp -nocase -all -- [subst -nocommands -nobackslashes $RE] $arg]


But problem happens when it the var $RE is ) or a (
The error it spews out is

Tcl error [rep_fld]: couldn't compile regular expression pattern: parentheses () not balanced

Any suggestions ?
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Sir_Fz
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Joined: 27 Apr 2003
Posts: 3793
Location: Lebanon
PostPosted: Thu May 04, 2006 8:13 pm    Post subject: Reply with quote
Code:
set RE [string map {( \\( ) \\)} $RE]

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StaleJoke
Voice


Joined: 29 Nov 2005
Posts: 10
PostPosted: Wed May 10, 2006 8:54 pm    Post subject: Reply with quote
On the same lines, if the bot encounters an astrix * as part of the word ( e.g. word* ) it gives me the error as:

Tcl error [repact_fld]: couldn't compile regular expression pattern: quantifier operand invalid
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Sir_Fz
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Joined: 27 Apr 2003
Posts: 3793
Location: Lebanon
PostPosted: Wed May 10, 2006 8:57 pm    Post subject: Reply with quote
Code:
set RE [string map {( \\( ) \\) * \\*} $RE]

You might want to add more special characters to this list.
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