mirror of
https://git.proxmox.com/git/mirror_zfs.git
synced 2024-12-27 11:29:36 +03:00
59 lines
955 B
Perl
59 lines
955 B
Perl
|
#!/usr/bin/perl -w
|
||
|
|
|
||
|
|
my $usage = <<EOT;
|
||
|
|
usage: config-enum enum [file ...]
|
||
|
|
|
||
|
|
Returns the elements from an enum declaration.
|
||
|
|
|
||
|
|
"Best effort": we're not building an entire C interpreter here!
|
||
|
|
EOT
|
||
|
|
|
||
|
|
use warnings;
|
||
|
|
use strict;
|
||
|
|
use Getopt::Std;
|
||
|
|
|
||
|
|
my %opts;
|
||
|
|
|
||
|
|
if (!getopts("", \%opts) || @ARGV < 1) {
|
||
|
|
print $usage;
|
||
|
|
exit 2;
|
||
|
|
}
|
||
|
|
|
||
|
|
my $enum = shift;
|
||
|
|
|
||
|
|
my $in_enum = 0;
|
||
|
|
|
||
|
|
while (<>) {
|
||
|
|
# comments
|
||
|
|
s/\/\*.*\*\///;
|
||
|
|
if (m/\/\*/) {
|
||
|
|
while ($_ .= <>) {
|
||
|
|
last if s/\/\*.*\*\///s;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
# preprocessor stuff
|
||
|
|
next if /^#/;
|
||
|
|
|
||
|
|
# find our enum
|
||
|
|
$in_enum = 1 if s/^\s*enum\s+${enum}(?:\s|$)//;
|
||
|
|
next unless $in_enum;
|
||
|
|
|
||
|
|
# remove explicit values
|
||
|
|
s/\s*=[^,]+,/,/g;
|
||
|
|
|
||
|
|
# extract each identifier
|
||
|
|
while (m/\b([a-z_][a-z0-9_]*)\b/ig) {
|
||
|
|
print $1, "\n";
|
||
|
|
}
|
||
|
|
|
||
|
|
#
|
||
|
|
# don't exit: there may be multiple versions of the same enum, e.g.
|
||
|
|
# inside different #ifdef blocks. Let's explicitly return all of
|
||
|
|
# them and let external tooling deal with it.
|
||
|
|
#
|
||
|
|
$in_enum = 0 if m/}\s*;/;
|
||
|
|
}
|
||
|
|
|
||
|
|
exit 0;
|