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( [id://3333]=superdoc: print w/replies, xml ) Need Help??
Hello,

you can play with length and more less greediness like in the following example (for sure while i'm writing you had received better answers)

use strict; use warnings; while (<DATA>){ chomp; $_=~/x(.*?)x(.*)x$/; if (length $1 == length $2){ print "OK $_\t [$1]",length $1," [$2]",length $2,"\n"; } else{print "$_ NOT OK\t[$1]",length $1," [$2]",length $2,"\n";} } __DATA__ xxx x.x.x x12x..x x123x...x x123x.x.x x12x1x # out OK xxx []0 []0 OK x.x.x [.]1 [.]1 OK x12x..x [12]2 [..]2 OK x123x...x [123]3 [...]3 OK x123x.x.x [123]3 [.x.]3 x12x1x NOT OK [12]2 [1]1

L*

There are no rules, there are no thumbs..
Reinvent the wheel, then learn The Wheel; may be one day you reinvent one of THE WHEELS.

In reply to Re: Regular Expression: search two times for the same number of any signs by Discipulus
in thread Regular Expression: search two times for the same number of any signs by Anonymous Monk

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