On 6/15/05, Tom Rogers <trogers@xxxxxxxxxx> wrote:
> Hi,
>
> Wednesday, June 15, 2005, 4:42:24 AM, you wrote:
> DC> On 6/14/05, Sebastian Mendel <lists@xxxxxxxxxxxxxxxxxx> 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>', $string);
> >>
> >> just to mention, you need only the second example, the first ist just to
> >> explain the step toward the final ocde.
> >>
> >> Sebastian Mendel
> >>
> >> www.sebastianmendel.de
> >> www.sf.net/projects/phpdatetime | www.sf.net/projects/phptimesheet
> >>
>
> DC> Thank you very much Sebatian! I can't believe that you got that out of
> DC> one line of code! I often feel that i have a lot to learn, but now I
> DC> see that I also have a lot to improve...
>
> DC> The code works great for [] tags that do not contain the word algebra.
> DC> If the word algebra is alone between the tags then it returns
> DC> <note></note>, which I can easily remove with one more line of code.
> DC> But if the word algebra appears with another word, then it is
> DC> converted to a note just as if it did not contain the word.
>
> DC> I tried adding asterisks and plus-signs at stratigec places within the
> DC> regex, but I am not succeeding in getting them to do what I want. I
> DC> suppose that I would be overstaying my welcome if I asked just where
> DC> to put them?
>
> DC> Dotan
> DC> http://lyricslist.com/lyrics/artist_albums/402/pink_floyd.php
> DC> Pink Floyd Lyrics
>
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>
>
> You can use preg_replace_callback to give you a bit more control, so
> using Sebastions first expression you could do
>
> function check_string($matches){
> if(preg_match('/algebra/i',$matches[0])) return '';
> return '<note>'.$matches[0].'</note>';
> }
>
> preg_replaec_callback('/\[([^\]]+)\]/','check_string',$string);
>
> --
> regards,
> Tom
>
Thanks, I did not know about the preg_replace_callback function. I'll
start playing with that now. Something new every day!
Dotan
http://lyricslist.com/lyrics/artist_albums/108/carey_mariah.php
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