Nathan Rixham wrote:
Robert Cummings wrote:
tedd wrote:
At 1:02 PM -0400 5/22/10, Robert Cummings wrote:
tedd wrote:
If that is all (i.e., removing double linefeeds), then this will do it:

$text_array = array();
$text_array = explode("\n\n", $input_text);
$output_text = implode("\n",$text_array);
Sorry tedd, this is broken. It doesn't solve problems with runs of greater than 2 newlines which is even in the example :) I would use the following instead which is also line break agnostic with final output in the style for your system:


$data = preg_replace( "#[\r\n]+#", PHP_EOL, $input );




It's not broken according to my "given", which was "If that is all (i.e., removing double linefeeds), then this will do it:" My code does exactly what was stated.

Actually, his comment didn't say double line feeds... his comment said I want THIS to look like THAT. And THIS had a triple line feed and THAT completely normalized it to a single line feed. I realize you misunderstood the problem, but where I work, clients don't think a solution based on incorrect presumptions is a valid solution for a clearly defined problem :)

I did not catch there were more than two linefeeds in the OP's problem. Doing more was something I did not address.

Also, the solution you provided works better this way:  :-)

$input = preg_replace( "#[\r\n]+[[:space:]]+[\r\n]+#", "\n", $input );
$input = preg_replace( "#[\r\n]+#", PHP_EOL, $input );
$input = trim( $input );

preg_replace( "/(\s)\s+/im", '\\1', $input );


ahh just read the rest of this thread.. icnase it gets a bit pedantic then here's a horizontal white space only one:
  preg_replace( "/(\h)\h+/im", '\\1', $input );

and vertical only:
  preg_replace( "/(\v)\v+/im", '\\1', $input );

(spot a pattern?)



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