whitespace remove

If I have a multiline text like..

abcd ef ghi
xyz d e f
d
sjskf s fdf

then how would I be able to remove the spaces (/s+) inside the strings (in middle of the strings).

I thought using doing like...

$string =~ s/\s+/ /g;

would work. but it does not work.

And if above is the way I would end up finally then can I make it like so it would
not alter spaces within <pre> tags like....

#declaring pretags avlyes
my $startPreTag="<pre>";
my $endPreTag="</pre>";


#so the spaces (more than one) will be removed is it is not enclosed by pre tags
$string =~ s/[^$startPreTag]^\s+[^$endPreTag]//;

Please tell me if I am on the right track

None of my appraoches are working. Please advise. Thanks!

 

You expression looks like having a space in the replacement portion,

Code:

# Your version
$string =~ s/\s+/ /g;
# Right code
$string =~ s/\s+//g;

For replacement within PRE tags,

Code:

$string =~ /<pre>([^<]+)<\/pre>/gi;
$str = $1;
$str =~ s/\s+//g;
$string =~ s/<pre>([^<]+)<\/pre>/$str/;

This will work only if there is only one occurance of pre in the string, you can also try HTML::Parse for this purpose.

 

got it.
thanks!

 

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