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a8b09d11ca
Change the way functions are called and either alter their declaration order or predeclare them so perl can check the prototypes.
171 lines
3.7 KiB
Perl
171 lines
3.7 KiB
Perl
#
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# Copyright 1999, 2000, 2001 Patrik Stridvall
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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package util;
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use strict;
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use vars qw($VERSION @ISA @EXPORT @EXPORT_OK %EXPORT_TAGS);
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require Exporter;
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@ISA = qw(Exporter);
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@EXPORT = qw(
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append_file edit_file read_file replace_file
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normalize_set is_subset
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);
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@EXPORT_OK = qw();
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%EXPORT_TAGS = ();
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########################################################################
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# _compare_files
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sub _compare_files($$) {
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my $file1 = shift;
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my $file2 = shift;
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local $/ = undef;
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return -1 if !open(IN, "< $file1");
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my $s1 = <IN>;
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close(IN);
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return 1 if !open(IN, "< $file2");
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my $s2 = <IN>;
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close(IN);
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return $s1 cmp $s2;
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}
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########################################################################
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# append_file
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sub append_file($$@) {
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my $filename = shift;
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my $function = shift;
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open(OUT, ">> $filename") || die "Can't open file '$filename'";
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my $result = &$function(\*OUT, @_);
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close(OUT);
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return $result;
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}
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########################################################################
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# edit_file
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sub edit_file($$@) {
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my $filename = shift;
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my $function = shift;
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open(IN, "< $filename") || die "Can't open file '$filename'";
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open(OUT, "> $filename.tmp") || die "Can't open file '$filename.tmp'";
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my $result = &$function(\*IN, \*OUT, @_);
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close(IN);
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close(OUT);
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if($result) {
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unlink("$filename");
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rename("$filename.tmp", "$filename");
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} else {
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unlink("$filename.tmp");
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}
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return $result;
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}
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########################################################################
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# read_file
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sub read_file($$@) {
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my $filename = shift;
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my $function = shift;
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open(IN, "< $filename") || die "Can't open file '$filename'";
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my $result = &$function(\*IN, @_);
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close(IN);
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return $result;
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}
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########################################################################
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# replace_file
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sub replace_file($$@) {
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my $filename = shift;
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my $function = shift;
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open(OUT, "> $filename.tmp") || die "Can't open file '$filename.tmp'";
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my $result = &$function(\*OUT, @_);
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close(OUT);
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if($result && _compare_files($filename, "$filename.tmp")) {
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unlink("$filename");
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rename("$filename.tmp", $filename);
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} else {
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unlink("$filename.tmp");
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}
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return $result;
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}
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########################################################################
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# normalize_set
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sub normalize_set($) {
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local $_ = shift;
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if(!defined($_)) {
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return undef;
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}
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my %hash = ();
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foreach my $key (split(/\s*&\s*/)) {
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$hash{$key}++;
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}
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return join(" & ", sort(keys(%hash)));
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}
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########################################################################
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# is_subset
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sub is_subset($$) {
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my $subset = shift;
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my $set = shift;
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foreach my $subitem (split(/ & /, $subset)) {
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my $match = 0;
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foreach my $item (split(/ & /, $set)) {
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if($subitem eq $item) {
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$match = 1;
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last;
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}
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}
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if(!$match) {
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return 0;
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}
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}
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return 1;
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}
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1;
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