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Posted by Dotan Cohen on 06/14/05 21:42
On 6/14/05, Sebastian Mendel <lists@sebastianmendel.de> wrote:
> Dotan Cohen wrote:
> > Hi gurus. I'm having fun replacing the text within [ and ] to XML
> > format on 4000+ files on a windows XP machine. I installed php (and an
> > apache server) on the machine because it is the only language the I am
> > remotely familiar with.
> >
> > I want and text that is with [ and ] to be enclosed with <note> and
> > </note>. Going through the archives I found this nice regex (I changed
> > it a bit- I hope that I didn't break anything important) that fits
> > into str_replace:
> >
> > str_replace("/[([a-zA-Z]+?)]/", "<note>".$what
> > was_inside_the_parethesis."</note>", $string);
>
> str_replace doesnt support regular expressions
>
> http://www.php.net/str_replace
>
> what you need is preg_replace()
>
> http://www.php.net/preg_replace
>
> > But how on sweet mother Earth do I get the $what
> > was_inside_the_parethesis variable to stick into the note tags? I
> > tried functions that would remove the [ and ], then do
> > $new_str="<note>".$what was_inside_the_parethesis."</note>";
> > and then replace the whole [$what was_inside_the_parethesis] with
> > $new_str. I did get that far.
>
> preg_replace( '/\[([^\]]+)\]/', '<note>\1</note>', $string);
>
> > Now the catch! If $what_was_inside_the_parethesis contains the word
> > 'algebra' then I want nothing returned- in other words [$what
> > was_inside_the_parethesis] should be cut out and nothing put in it's
> > place. I added an if function in there that checked the presence of
> > the word algebra, but it ALWAYS returned blank.
>
> preg_replace( '/\[(algebra|([^\]]+))\]/', '<note>\2</note>', $string);
>
> just to mention, you need only the second example, the first ist just to
> explain the step toward the final ocde.
>
> Sebastian Mendel
>
> www.sebastianmendel.de
> www.sf.net/projects/phpdatetime | www.sf.net/projects/phptimesheet
>
Thank you very much Sebatian! I can't believe that you got that out of
one line of code! I often feel that i have a lot to learn, but now I
see that I also have a lot to improve...
The code works great for [] tags that do not contain the word algebra.
If the word algebra is alone between the tags then it returns
<note></note>, which I can easily remove with one more line of code.
But if the word algebra appears with another word, then it is
converted to a note just as if it did not contain the word.
I tried adding asterisks and plus-signs at stratigec places within the
regex, but I am not succeeding in getting them to do what I want. I
suppose that I would be overstaying my welcome if I asked just where
to put them?
Dotan
http://lyricslist.com/lyrics/artist_albums/402/pink_floyd.php
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