Hello.

I have a text like this : 

Lorem Ipsum is simply dummy text of the printing and typesetting industry. {onpage} {    more}Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.{end} It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. {newpage}    {read more...}It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. {end}

the resulting text should be this :

 <span>Lorem Ipsum is simply dummy text of the printing and typesetting industry.<a href="something">   more</a><span class="someClass">Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.</span><span> It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. <a href="something_else.html">    read more...</a></span>

I think this could only be done by using regular expressions.

i tried something but with no result. i'm not that good with regex.

this is what i tried (in php) : 

preg_match_all("|(.*)\{onpage\}\{(\[^}]*)\}(.*)\{end\}|i", $text, $match);

this returned nothing.

Please define the replacements that should occur (what keyword should be match and what replacement should occur for that match), they seem somewhat evident but there is variation in your { } blocks.

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My client wants to format a page using this "language".

something like : 

some text {onpage} {   more [...]} another text {end}

{onpage} means that "Another text" will be hidden at first and when you press the link "   more [...]" that text will slide down. so this text should be transformed in something (not necesarry exactly) like :

 <span>some text <a href="something" class="someclass">   more [...]</a></span><span class="hidden">Another text</span>

 the same is with {newpage} except that the second {} parameter will be a link to a page wich will contain the "Another text" text.

 some text {newpage} {   more [...]} another text {end}

will be :

 <span>some text <a href="some_page.php">   more [...]</a></span>

I hope you can understand what i need.

The "language" can be altered if this is too hard to do. 

Can you help me with this?

Thanks.

<?php
$text="Lorem Ipsum is simply dummy text of the printing and typesetting industry. {onpage} {    more}Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book.{end} It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. {newpage}    {read more... }It was popularised in the 1960s with the release of Letraset sheets containing Lorem Ipsum passages, and more recently with desktop publishing software like Aldus PageMaker including versions of Lorem Ipsum. {end}";
function repfunc($match){
        return $match[3]!='' ? '<span>'.$match[1].'<a href="something" class="someclass">'.$match[3].'</a></span><span class="hidden">'.$match[4].'</span>' : '<span>'.$match[1].'<a href="some_page.php">'.$match[6].'</a></span>' ;
}
$text=preg_replace_callback('/([^{}]*)(?:\{onpage\} *\{(([^}]*)\}(.*?))\{end\}|\{newpage\} *\{(([^}]*)\}(.*?))\{end\})/s','repfunc',$text);
echo $text;
?>

Note that $match[7] is defined in the match pattern but ignored in the replacement as in your example.  I left it defined in the event you choose to use it.

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Thanks alot man. it works.