reg. exp. help

Anon

I'm trying to strip extra characters out of some static HTML pages that we have; characters like line breaks, and extra formating tabs.

The problem is: if i have a javascript on the page that has a one line comment, and i remove the line break, then all the code is considered to be on the same line... example:

This winds up as:
<script>// this does stuff doStuff();</script>

I need a regular expression that will either:
1) remove \n, \t, and \r from anywhere outside <script> </script> tags, or
2) remove any one line comments like "// foo"

I've tried a few things with no luck...

-andy

Anon

The following worked for me:

eregi_replace("//.*\n", "", $str);

But I warn you: it goes wrong when you parse this:

You should find out yourself what will be the best way to solve that problem. I hope this helps a little.

Greetz,

Vincent Driessen
Venlo, The Netherlands

Anon

If you tack on a ^ to the beginning of Vincent's regexp, it should only strip lines that begin with // (ie. one-line comments with no code before the comment begins) and end with a line break.

try: eregi_replace("^//.*\n", "", $str);

Hope that helps,
--Ryan

Anon

Ok... here's another issue with it...

firstly, i'm using a php script to open the file and using $content = fread($fp); to get the data.

so the concept of a "line" is kinda out the window...

i need a regexp that matches something like this (this doesn't work for me):

\n//.*\n

i don't know why it doesn't work, but it seems to kill anything from there to the end... i also tried
\n//.*[\n\r]

that didn't work either... could it be because these file were created on windows boxes that they're using a soft-return or something that i'm not matching on the end

-andy

Anon

Ok, here ya go, the following code will strip all the comments in the form // (comment) from a specific string:

ereg_replace("([^{\n])//[^\n]",} "\1", $string);

hope that helps...

Chris