| Server IP : 85.214.239.14 / Your IP : 3.149.25.4 Web Server : Apache/2.4.62 (Debian) System : Linux h2886529.stratoserver.net 4.9.0 #1 SMP Tue Jan 9 19:45:01 MSK 2024 x86_64 User : www-data ( 33) PHP Version : 7.4.18 Disable Function : pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_get_handler,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,pcntl_async_signals,pcntl_unshare, MySQL : OFF | cURL : OFF | WGET : ON | Perl : ON | Python : ON | Sudo : ON | Pkexec : OFF Directory : /usr/share/doc/libparse-recdescent-perl/examples/ |
Upload File : |
#!/usr/bin/perl -ws
# REMOVE COMMENTS FROM C++ CODE
use strict;
use Parse::RecDescent;
use vars qw/ $Grammar /;
$RD_TRACE=1;
my $parser = new Parse::RecDescent $Grammar or die "invalid grammar";
undef $/;
my $text = @ARGV ? <> : <DATA>;
print join " ", @{$parser->program($text) or die "malformed C program"};
BEGIN
{ $Grammar=<<'EOF';
program : <skip:qr/(\s+|#.*\n)*/> part(s)
part : /\S+/
EOF
}
__DATA__
Now we find # to our inexpressible joy
That the parser # a cunningly wrought thing
Skips both whitespace # the usual behaviour
# though it be configurable
And comments
#however many there be