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devops/perl/Examples/Chap2/def-conf-dir
2025-09-17 16:08:16 +08:00

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###
### define_config_directive
###
## Chapter 2 section 1.2
sub define_config_directive {
my $rest = shift;
$rest =~ s/^\s+//;
my ($new_directive, $def_txt) = split /\s+/, $rest, 2;
if (exists $CONFIG_DIRECTIVE_TABLE{$new_directive}) {
warn "$new_directive already defined; skipping.\n";
return;
}
my $def = eval "sub { $def_txt }";
if (not defined $def) {
warn "Could not compile definition for `$new_directive': $@; skipping.\n";
return;
}
$CONFIG_DIRECTIVE_TABLE{$new_directive} = $def;
}