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ranny
Halfop
Joined: 22 Jun 2005
Posts: 49
Location: switzerland
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 Posted: Mon Aug 15, 2005 3:17 pm Post subject: regexp problem |
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Hello,
I try regexp.
I've two problems | Code: |
( ranny ): .tcl regexp {\bworld\b} "the world is good"
<eggy> Tcl: 0
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Why not matching?
This code | Code: | ( ranny ): .tcl regexp {l(?=o)} color
<eggy> Tcl: 1
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it's ok
but
| Code: |
( ranny ): .tcl regexp {(?<=l)o} color
<eggy> Tcl error: couldn't compile regular expression pattern: quantifier operand invalid
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??
thx |
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demond
Revered One
Joined: 12 Jun 2004
Posts: 3073
Location: San Francisco, CA
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| Posted: Mon Aug 15, 2005 3:38 pm Post subject: |
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\b is RE escape for backspace and you don't have backspace
(?=re) is positive lookahead, valid in AREs (advanced REs) only, and I very much doubt it's that what you had in mind
(?<= is RE error |
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ranny
Halfop
Joined: 22 Jun 2005
Posts: 49
Location: switzerland
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| Posted: Mon Aug 15, 2005 4:57 pm Post subject: |
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ok,
You can just tell me how is $string for match this code please(an example)
| Code: | | regexp {\bworld\b} $string |
thx |
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demond
Revered One
Joined: 12 Jun 2004
Posts: 3073
Location: San Francisco, CA
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| Posted: Mon Aug 15, 2005 5:01 pm Post subject: |
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| what do you want to match? describe with your own words, not with RE |
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ranny
Halfop
Joined: 22 Jun 2005
Posts: 49
Location: switzerland
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| Posted: Tue Aug 16, 2005 2:07 am Post subject: |
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Yes, i try with an example.
I want to match a string(with regexp) who contains the words "word" and "is".
In fact i don't want to match a word who contains the words.
"the word is simple"==>match
"this word "==>not match
"F**** is a badword"==>not match
......
thx |
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demond
Revered One
Joined: 12 Jun 2004
Posts: 3073
Location: San Francisco, CA
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| Posted: Tue Aug 16, 2005 2:38 am Post subject: |
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| Code: |
regexp word.*is $str
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ranny
Halfop
Joined: 22 Jun 2005
Posts: 49
Location: switzerland
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| Posted: Tue Aug 16, 2005 7:23 am Post subject: |
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no demond,
it's not that.
I want that the code matches all string with "word" and "is". But it shouldn't match the words who contains "word" and "is"(badword,this,history...don't have matches).
I thought that to use \b was a solution to limit the word but it's not that.
If you can help me. |
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greenbear
Owner
Joined: 24 Sep 2001
Posts: 733
Location: Norway
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| Posted: Tue Aug 16, 2005 9:37 am Post subject: |
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| did you try seperating them using space. eg. \s |
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demond
Revered One
Joined: 12 Jun 2004
Posts: 3073
Location: San Francisco, CA
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| Posted: Tue Aug 16, 2005 11:54 am Post subject: |
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| Code: |
[regexp {(^|\s+)word($|\s+)} $str] && [regexp {(^|\s+)is($|\s+)} $str]
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ranny
Halfop
Joined: 22 Jun 2005
Posts: 49
Location: switzerland
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| Posted: Tue Aug 16, 2005 11:59 am Post subject: |
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ok | Code: | | regexp {(^word\s|\sword\s|\sword$)} $string |
it works for one word.
1/there is simpler?
2/ if i want match two words | Code: | | regexp {(^word1\s|\sword1\s) (\sword2\s|\sword2$)} $string |
don't match?
I want match the string with "word1 word2" or "word2 word1"
thx |
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demond
Revered One
Joined: 12 Jun 2004
Posts: 3073
Location: San Francisco, CA
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| Posted: Tue Aug 16, 2005 12:14 pm Post subject: |
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| I gave you the solution, did you bother to test it at all? |
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ranny
Halfop
Joined: 22 Jun 2005
Posts: 49
Location: switzerland
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| Posted: Tue Aug 16, 2005 5:00 pm Post subject: |
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erf,
sorry demond but we've post at the same time.Thx |
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ranny
Halfop
Joined: 22 Jun 2005
Posts: 49
Location: switzerland
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| Posted: Thu Aug 18, 2005 7:15 am Post subject: |
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Hello, another question,
If i want match "WOrd" or "word" or "worD"...
How to do it?
Thx |
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greenbear
Owner
Joined: 24 Sep 2001
Posts: 733
Location: Norway
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| Posted: Thu Aug 18, 2005 10:52 am Post subject: |
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| Code: | | regexp -nocase { ..... |
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ranny
Halfop
Joined: 22 Jun 2005
Posts: 49
Location: switzerland
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| Posted: Thu Aug 18, 2005 1:23 pm Post subject: |
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Ahhhh,
It's what I had done but with an error 
Thx |
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