Re^2: replace at the begining

s/(?<!<)p\sclass=/<p\sclass=/;
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Using of space as '\s' why s is displayed between p and class

<psclass="Hi">
<p class="new">
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Re^3: replace at the begining by Melly (Chaplain) on Aug 20, 2009 at 11:37 UTC
My mistake - \s means a whitespace character, which can be several things (a space, a tab, etc.). So it makes no sense as a substitution character (of the various options, which should perl use?). `map{$a=1-$_/10;map{$d=$a;$e=$b=$_/20-2;map{($d,$e)=(2$d$e+$a,$e2 -$d2+$b);$c=$d2+$e2>4?$d=8:_}1..50;print$c}0..59;print$/}0..20` [download] Tom Melly, pm (at) cursingmaggot (stop) co (stop) uk	[reply] [d/l]

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Re^3: replace at the begining
by Melly (Chaplain) on Aug 20, 2009 at 11:37 UTC

map{$a=1-$_/10;map{$d=$a;$e=$b=$_/20-2;map{($d,$e)=(2*$d*$e+$a,$e**2
-$d**2+$b);$c=$d**2+$e**2>4?$d=8:_}1..50;print$c}0..59;print$/}0..20
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Tom Melly, pm (at) cursingmaggot (stop) co (stop) uk