no_comment

1 files changed, 2 insertions, 1 deletions

diff --git a/perl-install/common.pm b/perl-install/common.pm
index c9366977f..7a9bddc5d 100644
--- a/perl-install/common.pm
+++ b/perl-install/common.pm
@@ -6,7 +6,7 @@ use vars qw(@ISA %EXPORT_TAGS @EXPORT_OK $printable_chars $sizeof_int $bitof_int
 
 @ISA = qw(Exporter);
 %EXPORT_TAGS = (
-    common     => [ qw(__ even odd min max sqr sum sign product bool listlength bool2text text2bool to_int to_float ikeys member divide is_empty_array_ref is_empty_hash_ref add2hash add2hash_ set_new set_add round round_up round_down first second top uniq translate untranslate warp_text formatAlaTeX) ],
+    common     => [ qw(__ even odd min max sqr sum sign product bool invbool listlength bool2text text2bool to_int to_float ikeys member divide is_empty_array_ref is_empty_hash_ref add2hash add2hash_ set_new set_add round round_up round_down first second top uniq translate untranslate warp_text formatAlaTeX) ],
     functional => [ qw(fold_left compose map_index grep_index map_each grep_each map_tab_hash mapn mapn_ difference2 before_leaving catch_cdie cdie) ],
     file       => [ qw(dirname basename touch all glob_ cat_ symlinkf chop_ mode typeFromMagic) ],
     system     => [ qw(sync makedev unmakedev psizeof strcpy gettimeofday syscall_ crypt_ getVarsFromSh setVarsInSh) ],
@@ -58,6 +58,7 @@ sub member { my $e = shift; foreach (@_) { $e eq $_ and return 1 } 0 }
 sub dirname { @_ == 1 or die "usage: dirname <name>\n"; local $_ = shift; s|[^/]*/*\s*$||; s|(.)/*$|$1|; $_ || '.' }
 sub basename { @_ == 1 or die "usage: basename <name>\n"; local $_ = shift; s|/*\s*$||; s|.*/||; $_ }
 sub bool { $_[0] ? 1 : 0 }
+sub invbool { my $a = shift; $$a = !$$a; $$a }
 sub listlength { scalar @_ }
 sub bool2text { $_[0] ? "true" : "false" }
 sub text2bool { my $t = lc($_[0]); $t eq "true" || $t eq "yes" ? 1 : 0 }