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Reynaldo
Halfop
Joined: 11 May 2005
Posts: 54
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 Posted: Tue Sep 27, 2005 1:41 am Post subject: parse the html |
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i've parse the html to $html
| Code: | regsub -all "\n" $html "" html
set nopage [string first "<div id=date>" $html 0]
set news [string range $html $nopage [expr [string first "<ul>" $html $nopage] - 1]] |
the output $html:
| Code: |
<div id=tanggal>
Tuesday ,
27/09/2005 09:11 EST</div>
Today news is bla bla bla bla. </a></div>
<div id=summary>
Bla bla bla bla bla news today. </div>
<div id=titlebiru>Read also :</div>
<ul>
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How to regexp the date, news topic, and the news? into $variable, so the output will be:
Tuesday, 27/09/2005 09:11 EST, Today news is bla bla bla. Bla bla bla bla news today. |
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De Kus
Revered One
Joined: 15 Dec 2002
Posts: 1361
Location: Germany
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| Posted: Tue Sep 27, 2005 4:06 am Post subject: |
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I'd suggest to run a regexp on the complete html without string range and regsub changes.
if you are too unfamilar with regexpand dont want to link to the complete page I'd recommned you to try out this one:
http://forum.egghelp.org/viewtopic.php?t=9972
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De Kus
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demond
Revered One
Joined: 12 Jun 2004
Posts: 3073
Location: San Francisco, CA
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| Posted: Wed Sep 28, 2005 12:51 am Post subject: |
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suppose you want to extract what is contained between some opening and closing tags:
| Code: |
[demond@whitepine demond]$ tclsh8.4
% set str "<tag attr=foo>some text</tag>"
<tag attr=foo>some text</tag>
% regexp {<tag.*?>(.*?)</tag>} $str -> str
1
% set str
some text
%
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De Kus
Revered One
Joined: 15 Dec 2002
Posts: 1361
Location: Germany
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| Posted: Wed Sep 28, 2005 3:40 am Post subject: |
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Tip: use '[^>]' or '[^<]' instead of '.' in cases where <tag> </tag> is not unique, because regex tends to match the widest match, not the shortest match.
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De Kus
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demond
Revered One
Joined: 12 Jun 2004
Posts: 3073
Location: San Francisco, CA
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| Posted: Wed Sep 28, 2005 4:01 am Post subject: |
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| De Kus wrote: | | Tip: use '[^>]' or '[^<]' instead of '.' in cases where <tag> </tag> is not unique, because regex tends to match the widest match, not the shortest match. |
there's no need of that, '*?' is a non-greedy quantifier, see the docs
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De Kus
Revered One
Joined: 15 Dec 2002
Posts: 1361
Location: Germany
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| Posted: Wed Sep 28, 2005 5:02 am Post subject: |
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ah sorry. must have missed it, hmm, should try if it is actually faster than the other variant.
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StarZ|De_Kus, De_Kus or DeKus on IRC
Copyright © 2005-2009 by De Kus - published under The MIT License
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