Re: OT: Why is C so popular?

[bob parker <bob_parker@dodo.com.au>]

On Thu, 28 Aug 2003 16:13, Jacob Anawalt wrote:
> bob parker wrote:
> > C is easier to learn than shell scripting, the elements at least, much
> > less
> >
> >Perl. I personally find it quicker to code a dirty fix in C than anything
> >else and would not really consider shell programming for anything other
> > than glue for a sequence of other commands.
> >
> >Just my 2 bits.
>
> Another great example on why the variety is a good thing. I agree on the
> C vs shell. The only way I write shell scripts is by example. I don't
> understand it well enough to write a script from a blank page. On the
> otherhand, I _so_ find myself wishing I could use regexp's this way in
> C/C++:
>
Try man regex.
Seems that there are regex libraries for the C hacker. Never had need to use 
them myself yet but someday??

> $email_in = 'Anawalt, Jacob; <jacob@cachevalley,com>; runme&';
> $vc = 'a-zA-Z0-9'; #Valid username and domain characters
> $vd = '.-'; #Valid domain non-characters
> $vu = $vd . '_'; #Valid username non-characters (domain plus an underscore)
>
> $email_out = $email_in;
> $email_out =~ s/,/./g;
>
> # Look for just the username@domain portion of the email
> if($email_out =~ /([$vc][$vc$vu]*)\@([$vc$vd]*[$vc])?/) {
>    #Match worked, email is just username@domain portion
>    $email_out = "$1\@$2"; #$1 and  $2 are the patterns \1 and \2 matched
> from the regexp
> } else {
>    #Match failied, empty string;
>    $email_out = '';
> }
>
> print "$email_out\n"; #Prints jacob@cachevalley.com.
>
> If somone else is happier writing a cool  class and some loops or
> figuring out a C++ regexp class to do this, or just some adept use of C
> string library calls, more power to you. :)
>
> Jacob