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Re: How do I do this search and replace? [message #172369 is a reply to message #172345] Mon, 14 February 2011 12:58 Go to previous messageGo to previous message
Jerry Stuckle is currently offline  Jerry Stuckle
Messages: 2598
Registered: September 2010
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On 2/13/2011 9:25 PM, Denis McMahon wrote:
> On 14/02/11 01:58, Doug Miller wrote:
>
>> That's outside the original specifications of the problem. Whether the
>> specifications *should* have included that condition is a separate issue. The
>> fact is, they didn't, and the solution Richard posted is a correct solution to
>> to problem as originally posed.
>
> Oh indeed, I only mentioned them because I felt that the OP ought to
> consider the possibility that a system that can generate "\n" and "\r\n"
> as line delimiters might also generate "\r", and possibly various other
> combinations of "\r" and "\n".
>
> replace any combination of one or more carriage returns and line feeds
> with a single cr/lf pair:
>
> $contents = preg_replace("/[\r\n]+/","\r\n",$contents);
>
> Rgds
>
> Denis McMahon

That also will replace things like \r\n\r\n or \n\n with a single \r\n.

Richard's answer is better - it solves the stated problem correctly.

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==================
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Jerry Stuckle
JDS Computer Training Corp.
jstucklex(at)attglobal(dot)net
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