Newline characters would not appear as "boxes" in any display tool. The boxes represent some other character (probably outside the ASCII range) for which the display tool's current font has no glyph.

So the question is, what are these extra characters in the html data, which are not newlines and are not displayable characters? Here's a way to find out: 

$line = $array_value;  # but where does $array_value come from?

$line =~ s/([^\x20-\x7e])/sprintf( "\\x%02x", ord( $1 ))/eg;

print $line;

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Assuming that your $array_value has not been flagged as containing utf8 character data, the substitution above will replace all "invisible" byte values (including those between 128 and 255) with their hexadecimal numerics (e.g. linefeed will show up as "\x0a", carriage-return as "\x0d", "delete" as "\x7f", non-breaking space as "\xa0" and so on).

If the string does contain utf8 characters (and perl has flagged it as such), it should still work, but some of the hexadecimal values may be 3- or 4-digit numbers.

Once you know what sorts of characters you're dealing with, you'll have a better idea of how to handle them.

In reply to Re: Remove new line characters by graff
in thread Remove new line characters by simatics

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