On 06/03/2011 16:22, Shlomit Afgin wrote:
I have a data that contain unseen characters that I want to delete. The unseen characters can be ^L, ^N and other sign that I cannot copy but I see them in my data. Is someone know which regular can help me.
Hi Shlomit. It would be better to list the specific characters that you want to remove, but you could get away with the POSIX character class [:cntrl:]. A substitution like s/[[:cntrl:]]+//g would remove all control characters (ordinals 0..31 and 127). A more efficient way would be to avoid regular expressions and use tr///: tr/\x00-\x1F\x7F//d; HTH, Rob -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
