Re: Re: Learn vi/vim in 50 lines and 15 minutes

[thelenm]

in reply to Re: Learn vi/vim in 50 lines and 15 minutes
in thread Learn vi/vim in 50 lines and 15 minutes

Good post... a minor nit, though. You can use + in Vim regexes, but you have to precede it with a backslash. Vim regexes and Perl regexes are not the same (knowing when to use backslashes often throws me off), but I think they're much more similar than they are different.

[tachyon]

OK so I lied (it was just a little one!) It really uses the abortive GNU regex syntax that is just different enough from Perl to s!+t you if you really know perl REs.....it is like grep. My usual greps are called re and re! linked into /usr/bin. They look like:

[root@devel3 root]# cat /usr/bin/re
#!/usr/bin/perl

die "Usage re [RE]\nFull Perl grep on STDIN\n" unless @ARGV == 1;
my $re = qr/$ARGV[0]/;
while(<STDIN>) {
    print if m/$re/;
}

[root@devel3 root]# cat /usr/bin/re!
#!/usr/bin/perl

die "Usage re [RE]\nFull Perl grep on STDIN\n" unless @ARGV == 1;
my $re = qr/$ARGV[0]/;
while(<STDIN>) {
    print if ! m/$re/;
}

[root@devel3 root]# cat some.file | re "some perl re"